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WO2024065528A1 - 信息接收、信息发送方法以及装置 - Google Patents

信息接收、信息发送方法以及装置 Download PDF

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Publication number
WO2024065528A1
WO2024065528A1 PCT/CN2022/122913 CN2022122913W WO2024065528A1 WO 2024065528 A1 WO2024065528 A1 WO 2024065528A1 CN 2022122913 W CN2022122913 W CN 2022122913W WO 2024065528 A1 WO2024065528 A1 WO 2024065528A1
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WIPO (PCT)
Prior art keywords
cell
time interval
candidate target
tci state
indication information
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PCT/CN2022/122913
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English (en)
French (fr)
Inventor
张健
贾美艺
孙刚
王昕�
Original Assignee
富士通株式会社
张健
贾美艺
孙刚
王昕�
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Application filed by 富士通株式会社, 张健, 贾美艺, 孙刚, 王昕� filed Critical 富士通株式会社
Priority to PCT/CN2022/122913 priority Critical patent/WO2024065528A1/zh
Publication of WO2024065528A1 publication Critical patent/WO2024065528A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the field of communication technologies.
  • the 3GPP standardization organization has carried out standardization work related to Inter-Cell Beam Management (ICBM) during the standardization process of Release 17 (Rel-17).
  • ICBM Inter-Cell Beam Management
  • terminal devices in Rel-17 can use the beams of non-serving cells, but do not switch to non-serving cells.
  • the 3GPP standardization organization carried out standardization work on the unified transmission configuration indication (TCI).
  • TCI transmission configuration indication
  • the unified TCI in Rel-17 is mainly designed for the sTRP (single transmission and reception point) scenario.
  • the inter-cell beam management of Rel-17 is based on the unified TCI framework.
  • ICBM Inter-Cell Beam Management
  • ICBM includes measurement, reporting and beam indication.
  • the terminal device is able to perform L1-RSRP measurement based on the SSB of a non-serving cell.
  • the terminal device reports the L1-RSRP measurement result to the network device.
  • the network device can indicate the transmission configuration indication (TCI) state associated with the non-serving cell to the terminal device. In this way, the terminal device can use the beam of the non-serving cell, for example, use the beam to send information to the non-serving cell or receive information from the non-serving cell.
  • TCI transmission configuration indication
  • the terminal device is able to use the beam of the non-serving cell, the serving cell of the terminal device does not change, that is, the terminal device will not switch to the non-serving cell through the handover process. Therefore, the terminal device is still within the bandwidth of the serving cell and applies the indicated TCI state associated with the non-serving cell on the serving cell based on the relevant configuration of the serving cell.
  • the non-service cell refers to a cell whose physical cell ID (PCI, Physical Cell ID) is different from the physical cell ID of the service cell.
  • Rel-17 standardizes unified TCI (transmission configuration indication).
  • Rel-17 ICBM is based on Rel-17 unified TCI.
  • Rel-17 unified TCI is for sTRP (single transmission and reception point) scenarios.
  • the transmission configuration indication (TCI) field of DCI format 1_1 or DCI format 1_2 indicates one or more TCI states.
  • DCI format 1_1 or DCI format 1_2 can schedule downlink data, called DCI format 1_1/1_2 with DL assignment, or can not schedule downlink data, called DCI format 1_1/1_2 without DL assignment.
  • the indication or update of TCI state actually also includes the indication or update of the beam used by the terminal device.
  • TCI state includes joint TCI state, downlink TCI state and uplink TCI state.
  • the joint TCI state acts on both the downlink beam (receive beam) and the uplink beam (transmit beam). In other words, the downlink beam and the uplink beam use the same beam, but the beam directions are opposite, that is, there is reciprocity between the uplink and downlink beams.
  • the downlink TCI state only acts on the downlink beam.
  • the uplink TCI state only acts on the uplink beam.
  • the uplink beam is also called the uplink transmit spatial filter.
  • a TCI field indicates a joint TCI state, or indicates a downlink TCI state, or indicates an uplink TCI state, or indicates a downlink TCI state and an uplink TCI state.
  • the TCI state begins to be applied after the beam application time.
  • the channels or signals to which the TCI state is applied include dedicated channels or signals for terminal devices, and some common channels or signals.
  • Rel-17 defines a simultaneous TCI update list.
  • N1 (N1 ⁇ M) cells belong to one simultaneous TCI update list
  • N2 (N2 ⁇ M) cells belong to another simultaneous TCI update list, and so on. If the TCI state applied to a cell is updated, and the cell belongs to a simultaneous TCI update list, the TCI state applied to other cells in the simultaneous TCI update list is also updated. In other words, the TCI states of cells belonging to a simultaneous TCI update list are updated simultaneously.
  • L1/L2 based mobility the goal is to reduce the time required for handover interruption, so as to switch from the serving cell to the non-serving cell faster.
  • Handover interruption refers to the time from the terminal device receiving the cell handover command to the first uplink or downlink communication between the terminal device and the switched cell.
  • cell handover based on L1/L2 signaling can further reduce the handover delay.
  • the terminal device needs to measure and report the non-serving cell, and the network device needs to indicate the beam to be used after the handover to the terminal device.
  • the terminal device does not need to perform cell handover.
  • the terminal device For L1/L2 based mobility in Rel-18, the terminal device needs to perform cell handover and switch to the non-serving cell (also called the target cell). Due to this major difference, the measurement, reporting and beam indication in Rel-18 may require different designs.
  • TCI state the beam of the target cell
  • an embodiment of the present application provides a method and apparatus for receiving and sending information.
  • a terminal device is configured with one or more candidate target cells, each of which is associated with a time interval.
  • the terminal device is instructed to switch to a candidate target cell, and the TCI state associated with the candidate target cell is applied in the target cell after the time interval associated with the candidate target cell.
  • an information receiving method which is applied to a terminal device, wherein the method includes:
  • the first indication information indicates a first TCI state and a cell handover
  • the first TCI state indicated is applied in the switched cell.
  • an information receiving method which is applied to a terminal device, wherein the method includes:
  • the fourth TCI state indicated is applied in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of feedback information (HARQ-ACK) sent for the fourth indication information.
  • the reference symbol is the last symbol of the fourth indication information, or the last symbol of feedback information (HARQ-ACK) sent for the fourth indication information.
  • an information sending method which is applied to a network device, wherein the method includes:
  • the first indication information indicates a first TCI state and a cell switch
  • HARQ-ACK Receive feedback information
  • the first TCI state is used to apply the first TCI state indicated in the switched cell after at least a first time interval has passed after the last symbol of the feedback information (HARQ-ACK).
  • HARQ-ACK feedback information
  • an information sending method which is applied to a network device, wherein the method includes:
  • HARQ-ACK feedback information
  • the terminal device applies the fourth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of the feedback information (HARQ-ACK) for the fourth indication information.
  • the reference symbol is the last symbol of the fourth indication information, or the last symbol of the feedback information (HARQ-ACK) for the fourth indication information.
  • an information receiving device which is configured in a terminal device, and the information receiving device includes:
  • a receiving unit which receives first indication information, wherein the first indication information indicates a first TCI state and a cell switching,
  • a sending unit which sends feedback information (HARQ-ACK);
  • the first TCI state indicated is applied in the switched cell.
  • an information receiving device configured in a terminal device, and the information receiving device includes:
  • a second receiving unit which receives third indication information, wherein the third indication information indicates a fourth TCI state
  • a second sending unit which sends feedback information (HARQ-ACK) for the third indication information, wherein the fourth TCI state indicated is applied in the serving cell after at least a fourth time interval has passed after the last symbol of the feedback information (HARQ-ACK) sent for the third indication information;
  • HARQ-ACK feedback information
  • the second receiving unit further receives fourth indication information, wherein the fourth indication information indicates cell switching;
  • the fourth TCI state indicated is applied in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or is the last symbol of feedback information (HARQ-ACK) sent by the second sending unit in response to the fourth indication information.
  • the reference symbol is the last symbol of the fourth indication information, or is the last symbol of feedback information (HARQ-ACK) sent by the second sending unit in response to the fourth indication information.
  • an information sending device which is configured in a network device, wherein the device includes:
  • a third sending unit is configured to send first indication information, wherein the first indication information indicates a first TCI state and a cell switching.
  • a third receiving unit receives feedback information (HARQ-ACK); wherein the first TCI state is used to apply the first TCI state indicated in the switched cell after at least a first time interval has passed after the last symbol of the feedback information (HARQ-ACK).
  • HARQ-ACK feedback information
  • an information sending device which is applied to a network device, wherein the device includes:
  • a fourth sending unit which sends third indication information, wherein the third indication information indicates a fourth TCI state
  • a fourth receiving unit which receives feedback information (HARQ-ACK) for the third indication information, wherein, after at least a fourth time interval has passed after the last symbol of the feedback information (HARQ-ACK) for the third indication information, the terminal device applies the fourth TCI state indicated in the serving cell;
  • HARQ-ACK feedback information
  • the fourth sending unit further sends fourth indication information, wherein the fourth indication information indicates cell switching;
  • the terminal device applies the fourth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of the feedback information (HARQ-ACK) for the fourth indication information.
  • the reference symbol is the last symbol of the fourth indication information, or the last symbol of the feedback information (HARQ-ACK) for the fourth indication information.
  • One of the beneficial effects of the embodiments of the present application is that it can avoid ambiguity between terminal devices and network devices about when the TCI state can be applied to the switched cell, thereby achieving fast beam switching and cell switching.
  • FIG1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG2 is a schematic diagram of a signaling sending and receiving process according to an embodiment of the present application.
  • FIG3 is a schematic diagram of an information receiving method according to an embodiment of the present application.
  • FIG4 is another schematic diagram of the signaling sending and receiving process according to an embodiment of the present application.
  • FIG5 is a schematic diagram of the association between TCI state and cells in an embodiment of the present application.
  • FIG6 is a schematic diagram of determining a first time interval according to an embodiment of the present application.
  • FIG7 is another schematic diagram of determining a first time interval according to an embodiment of the present application.
  • FIG8 is an example diagram of configuring a third time interval according to an embodiment of the present application.
  • FIG9 is another example diagram of configuring a third time interval according to an embodiment of the present application.
  • FIG10 is another schematic diagram of the information receiving method according to an embodiment of the present application.
  • FIG11 is another schematic diagram of the signaling sending and receiving process of an embodiment of the present application.
  • FIG12 is another schematic diagram of the information receiving method according to an embodiment of the present application.
  • FIG13 is another schematic diagram of the signaling sending and receiving process of the embodiment of the present application.
  • FIG14 is a schematic diagram of a method for sending information according to an embodiment of the present application.
  • FIG15 is another schematic diagram of the information sending method according to an embodiment of the present application.
  • FIG16 is another schematic diagram of the information sending method according to an embodiment of the present application.
  • FIG17 is a schematic diagram of an information receiving device according to an embodiment of the present application.
  • FIG18 is another schematic diagram of an information receiving device according to an embodiment of the present application.
  • FIG19 is a schematic diagram of an information sending device according to an embodiment of the present application.
  • FIG. 20 is another schematic diagram of the information sending device according to an embodiment of the present application.
  • FIG21 is a schematic diagram of the structure of a network device according to an embodiment of the present application.
  • Figure 22 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements in terms of title, but do not indicate the spatial arrangement or temporal order of these elements, etc., and these elements should not be limited by these terms.
  • the term “and/or” includes any one and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having”, etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.
  • the term “communication network” or “wireless communication network” may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.
  • LTE Long Term Evolution
  • LTE-A enhanced Long Term Evolution
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • communication between devices in the communication system may be carried out according to communication protocols of any stage, such as but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), etc., and/or other communication protocols currently known or to be developed in the future.
  • 1G generation
  • 2G 2.5G
  • 2.75G 3G
  • 4G 4G
  • 4.5G and 5G
  • NR New Radio
  • the term "network device” refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • the network device may include, but is not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.
  • base stations may include but are not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB) and 5G base station (gNB), etc., and may also include remote radio heads (RRH, Remote Radio Head), remote radio units (RRU, Remote Radio Unit), relays or low-power nodes (such as femeto, pico, etc.).
  • NodeB Node B
  • eNodeB or eNB evolved Node B
  • gNB 5G base station
  • base station may include remote radio heads (RRH, Remote Radio Head), remote radio units (RRU, Remote Radio Unit), relays or low-power nodes (such as femeto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relays or low-power nodes such as femeto, pico, etc.
  • base station may include some or all of their functions, and each base station can provide communication coverage for a specific geographical area.
  • the term "cell” can refer
  • the term "user equipment” (UE) or “terminal equipment” (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services.
  • the terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and the like.
  • terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDA, Personal Digital Assistant), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.
  • PDA personal digital assistants
  • wireless modems wireless communication devices
  • handheld devices machine-type communication devices
  • laptop computers cordless phones
  • smart phones smart watches, digital cameras, etc.
  • the terminal device can also be a machine or device for monitoring or measuring, such as but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device to device (D2D) terminal, machine to machine (M2M) terminal, and so on.
  • MTC machine type communication
  • D2D device to device
  • M2M machine to machine
  • network side refers to one side of the network, which may be a base station, or may include one or more network devices as above.
  • user side or “terminal side” or “terminal device side” refers to one side of the user or terminal, which may be a UE, or may include one or more terminal devices as above.
  • device may refer to either a network device or a terminal device.
  • FIG 1 is a schematic diagram of a communication system of an embodiment of the present application, which schematically illustrates a situation taking a terminal device and a network device as an example.
  • a communication system 100 may include a first network device 101, a second network device 102 and a terminal device 103; for simplicity, Figure 1 only illustrates two network devices and one terminal device as an example, but the embodiment of the present application is not limited to this.
  • the first network device 101 is a serving cell of the terminal device 103
  • the second network device 102 is a non-serving cell of the terminal device 103.
  • Fig. 2 is a schematic diagram of the signaling sending process of the embodiment of the present application. Taking Fig. 2 as an example, Inter-Cell Beam Management (ICBM) is schematically illustrated.
  • ICBM Inter-Cell Beam Management
  • the terminal device receives a DCI indicating a TCI state, wherein the TCI state is associated with a non-serving cell (e.g., the second network device 102 in FIG. 1 ).
  • the terminal device feeds back an ACK, and applies the indicated TCI state at least one time interval Y (Y symbols of the serving cell, also referred to as the beam application time (BAT, Beam Application Time)) after the last symbol of the ACK.
  • Y Y symbols of the serving cell
  • BAT Beam Application Time
  • the terminal device may be instructed to use the beam of a non-serving cell, but the terminal device does not perform cell switching, but only uses the beam of the non-serving cell on the serving cell (e.g., the first network device 101 in FIG. 1 ).
  • the specific value of Y is configured by the network device so that the terminal device has enough time to apply the newly indicated TCI state, i.e., to leave time for beam switching.
  • the terminal device Different from inter-cell beam management, for L1/L2 based cell switching in Rel-18, the terminal device not only needs to use the beam of the non-serving cell, but also needs to switch to the non-serving cell. Considering that the non-serving cell may have a different center frequency and/or subcarrier spacing from the serving cell, in addition to the beam switching time, the terminal device needs additional time for cell switching.
  • an embodiment of the present application provides a method and device for receiving and sending information.
  • An embodiment of the present application provides an information receiving method, which is applied on a terminal device side.
  • FIG3 is a schematic diagram of an information receiving method according to an embodiment of the present application. As shown in FIG3 , the method includes:
  • HARQ-ACK sending feedback information (HARQ-ACK), and applying the first TCI state indicated in the switched cell after at least a first time interval has passed after the last symbol of the feedback information (HARQ-ACK).
  • the terminal device is indicated with the first TCI state and the cell switching, and the terminal device applies the indicated first TCI state in the switched cell after at least the first time interval after the last symbol of the feedback information (HARQ-ACK).
  • HARQ-ACK feedback information
  • FIG. 3 is only a schematic illustration of the embodiment of the present application, taking the terminal device as an example, but the present application is not limited thereto.
  • the execution order between the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced.
  • the objects of the above operations can also be adjusted. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of the above FIG. 4.
  • Cell can be equivalently replaced by “carrier”; the method applicable to the "simultaneous TCI update list” described later is also applicable to the "primary cell group” or “secondary cell group”, that is, the “simultaneous TCI update list” is replaced by "primary cell group” or “secondary cell group”; the above is only an exemplary description, and the embodiments of the present application are not limited thereto.
  • FIG4 is another schematic diagram of the signaling sending and receiving process of an embodiment of the present application.
  • the signaling first indication information (also referred to as switching signaling) indicating TCI state and cell switching may be DCI and/or MAC CE.
  • the terminal device receives the switching signaling sent by the serving cell and sends an ACK for DCI and/or PDSCH.
  • the serving cell may also be referred to as a source cell, and the number of such cells may be one or more; the ACK may also be equivalently replaced by a HARQ-ACK.
  • the terminal device requires time to switch cells and apply the indicated TCI state, so the indicated TCI state can only be applied in the switched cell at least after the first time interval (Z) after the last symbol of the ACK.
  • the unit of the first time interval (Z) may be a symbol, or a millisecond, or a time slot.
  • first configuration information is received, wherein the first configuration information configures one or more candidate target cells.
  • the terminal device before receiving the first indication information (switching signaling), the terminal device is configured with one or more candidate target cells and is provided with configuration information related to the candidate target cells.
  • the switching signaling instructs the terminal device to switch to one or more of the candidate target cells; the configuration information indicates the necessary information required for the terminal device to use the candidate target cell after the switch, such as referring to the relevant information in the cell switching process of the prior art, which is not limited in this application.
  • the first indication information indicates a candidate target cell as a primary target cell among the configured one or more candidate target cells.
  • the first indication information indicates at least the following, including:
  • the first indication information may additionally indicate one or more candidate target cells.
  • the first indication information indicates that the terminal device switches to one or more candidate target cells, wherein the primary target cell is one of the one or more candidate target cells.
  • the first indication information may indicate that the terminal device switches to one candidate target cell, and the one candidate target cell is the primary target cell (target cell).
  • the first indication information may indicate that the terminal device switches to multiple candidate target cells, such as multiple carrier-aggregated cells, which belong to the same master cell group (MCG) or the same secondary cell group (SCG). If the first indication information indicates multiple candidate target cells, it indicates one candidate target cell as the primary candidate target cell.
  • one candidate target cell is indicated as a primary cell (Pcell), and other candidate target cells are indicated as secondary cells (Scell), or one candidate target cell is indicated as a primary secondary cell (PScell), and other candidate target cells are indicated as secondary cells, and the indicated Pcell or PScell is the primary target cell.
  • Pcell primary cell
  • Scell secondary cells
  • PScell primary secondary cell
  • other candidate target cells are indicated as secondary cells
  • the indicated Pcell or PScell is the primary target cell.
  • the indicated first TCI state is associated with a cell, which is a primary target cell, or a cell other than the primary target cell.
  • the first TCI state indicated is associated with a cell, which is the primary target cell.
  • FIG. 5 is a schematic diagram of the association between TCI state and cell in an embodiment of the present application.
  • the first indication information indicates a TCI state
  • the TCI state is associated with a cell ID (cell ID), which is the main target cell.
  • the terminal device is configured with N candidate target cells and is provided with the cell ID of each candidate target cell. Therefore, based on the cell ID, it can be determined which candidate target cell is the main target cell indicated by the switching signaling.
  • the cell ID There is no restriction on the specific form of the cell ID, for example, it can be a physical cell ID (PCI, Physical Cell ID); the cell associated with the TCI state can be a non-service cell, and this application does not restrict this.
  • PCI Physical Cell ID
  • the first TCI state indicated is associated with a cell that is a cell other than the primary target cell.
  • the first indication information indicates a first cell as the primary target cell and indicates a TCI state, wherein the TCI state is associated with a second cell, and the second cell may be different from the first cell.
  • the terminal device may use the beam of the second cell on the first cell, thereby making the beam selection more flexible and enabling the terminal device to always use the best beam;
  • the cell associated with the TCI state may be a non-service cell, which is not limited in this application.
  • the cell after switching includes: a main target cell; or, the main target cell and one or more candidate target cells other than the main target cell, wherein the main target cell and the one or more candidate target cells other than the main target cell belong to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belong to the same main cell group (MCG, Master Cell Group), and/or, belong to the same secondary cell group (SCG, Secondary Cell Group).
  • simultaneous TCI update list SimultaneousTCI-UpdateList
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the cell after switching is not necessarily the same as “the cell indicated by the switching signaling”; “the cell after switching” specifically refers to the cell after switching to which the indicated TCI state is applied, that is, the cell after switching to which the indicated beam is applied.
  • the cell indicated by the switching signaling generally refers to the cell after switching, but these cells do not necessarily all apply the indicated TCI state.
  • the switching signaling indicates a primary target cell and N1 candidate target cells belonging to the same primary cell group, but the cells to which the indicated TCI state is applied only include the primary target cell and N2 candidate target cells belonging to the same simultaneous TCI update list, where N2 ⁇ N1.
  • the "cell after switching" is a subset of the "cell indicated by the switching signaling".
  • the switching signaling only indicates one primary target cell, but the cells to which the indicated TCI state is applied include the primary target cell and N2 candidate target cells belonging to the same simultaneous TCI update list.
  • the "cell indicated by the switching signaling" is a subset of the "cell after switching”.
  • the handover signaling indicates one or more candidate target cells, one of which is used as the primary target cell.
  • the terminal device After receiving the handover signaling, the terminal device will switch to one or more candidate target cells and apply relevant configuration information.
  • the indicated TCI state applies only to the primary target cell.
  • the primary target cell is a non-carrier aggregation (CA) cell.
  • CA non-carrier aggregation
  • the primary target cell does not belong to any simultaneous TCI update list.
  • the primary target cell and other M1 candidate target cells belong to a simultaneous TCI update list
  • the indicated TCI state is still only applied on the primary target cell.
  • the first time interval (Z) needs to be determined according to the largest time interval among the multiple cells.
  • beams can be applied only on the primary target cell, so that they are not affected by other cells that require a larger time interval, and switching can be completed faster through the primary target cell.
  • the terminal device applies an indicated TCI state within the hand over interruption time, the terminal device applies the indicated TCI state only on the primary target cell, i.e., does not use the simultaneous TCI update list.
  • the TCI state here is not limited to the TCI state indicated by the handover signaling, but can also be the TCI state indicated by other signaling that only indicates the beam.
  • the terminal device uses the simultaneous TCI update list, i.e., reuses the Rel-17 ICBM.
  • the indicated TCI state applies to the primary target cell and one or more candidate target cells.
  • the primary target cell may aggregate other candidate target cells.
  • the terminal device switches to the primary target cell and also switches to the other candidate target cells aggregated by it.
  • the configuration information may indicate which candidate target cells belong to the same primary cell group or secondary cell group.
  • the indicated TCI state applies to all cells belonging to the same primary cell group or secondary cell group. Therefore, the cell after switching may include an indicated primary target cell and include one or more other candidate target cells belonging to the same primary cell group or secondary cell group as the primary target cell.
  • the configuration information may indicate which candidate target cells in a primary cell group or secondary cell group belong to the same simultaneous TCI update list.
  • the indicated TCI state applies to all cells belonging to the same simultaneous TCI update list. Therefore, the cell after switching may include an indicated primary target cell and include one or more other candidate target cells belonging to the same simultaneous TCI update list as the primary target cell.
  • the first TCI state indicated is different from a third TCI state indicated to the terminal device before the first TCI state is indicated.
  • the terminal device applies the indicated first TCI state in the cell after switching based on the above method;
  • the previously indicated third TCI state is indicated by signaling that only indicates the TCI state, or, by signaling that simultaneously indicates the TCI state and the cell switching.
  • second indication information is received after receiving the first indication information, wherein the second indication information indicates a second TCI state; when a first cell set to which the indicated first TCI state is applied is a subset of a second cell set to which the indicated second TCI state is applied, the indicated second TCI state is applied on the second cell set; wherein the second TCI state is the same as the first TCI state.
  • the terminal device receives a handover signaling, and although the indicated primary target cell belongs to a simultaneous TCI update list, since the first TCI state is indicated by the handover signaling, the terminal device applies the indicated first TCI state only on the primary target cell, and does not apply the first TCI state on all cells included in the simultaneous TCI update list. Therefore, the first set of cells to which the first TCI state is applied only includes the primary target cell in the simultaneous TCI update list. Afterwards, the terminal device receives another signaling indicating a TCI state, which indicates a second TCI state for the simultaneous TCI update list; since the second TCI state is not indicated by the handover signaling, the terminal device applies the second TCI state on all cells included in the simultaneous TCI update list.
  • the second set of cells to which the second TCI state is applied includes all cells in the simultaneous TCI update list, and the first set of cells to which the first TCI state is applied is a subset of the second set of cells to which the second TCI state is applied.
  • the terminal device also needs to perform the above-mentioned operation of applying the TCI state, that is, applying the TCI state on the second set of cells different from the first set of cells.
  • the first TCI state is applied to at least one of the following channels or signals of the primary target cell: SSB; PRACH; type 1 physical downlink control channel common search space set Type1-PDCCH CSS set; CORESET associated with Type1-PDCCH CSS set; type 2 physical downlink control channel common search space set Type2-PDCCH CSS set; CORESET associated with Type2-PDCCH CSS set; or, PUSCH scheduled by a random access response uplink grant RAR (Random Access Response) UL grant.
  • RAR Random Access Response
  • the indicated TCI state is applied to the primary target cell, that is, the terminal device uses the indicated beam in the primary target cell. More specifically, the indicated TCI state is applied to at least one of the following channels or signals of the primary target cell, including:
  • the terminal device may receive the SSB using the indicated beam, thereby obtaining downlink synchronization with the primary target cell;
  • the terminal device can send a PRACH preamble (Msg1) using the indicated beam, thereby obtaining uplink synchronization with the primary target cell through a random access procedure;
  • Msg1 PRACH preamble
  • Type1-PDCCH CSS set for example, the terminal device uses the indicated beam in the Type1-PDCCH CSS set to receive the PDCCH whose CRC is scrambled by RA-RNTI or TC-RNTI, that is, the PDCCH that schedules Msg2 or Msg4;
  • the CORESET associated with the Type1-PDCCH CSS set for example, the terminal device receives a PDCCH whose CRC is scrambled by the RA-RNTI or TC-RNTI using the indicated beam within the CORESET associated with the Type1-PDCCH CSS set.
  • Type2-PDCCH CSS set for example, the terminal device uses the indicated beam in the Type2-PDCCH CSS set to receive the PDCCH whose CRC is scrambled by the P-RNTI, that is, the PDCCH that schedules the paging message.
  • a CORESET associated with a Type2-PDCCH CSS set for example, the terminal device receives a PDCCH whose CRC is scrambled by the P-RNTI using the indicated beam within the CORESET associated with the Type2-PDCCH CSS set.
  • the terminal device uses the indicated beam to send PUSCH scheduled by RAR UL grant, that is, Msg3.
  • each of the configured one or more candidate target cells is associated with a first time interval, and at least the first time interval includes the first time interval associated with the primary target cell.
  • the first time interval (Z) corresponding to the main target cell can be obtained, and the first TCI state indicated is applied in the switched cell after at least the first time interval (Z) corresponding to the main target cell has passed after the last symbol of the feedback information (HARQ-ACK).
  • HARQ-ACK feedback information
  • FIG. 6 is a schematic diagram of determining a first time interval according to an embodiment of the present application.
  • the time interval (Z N ) associated with the primary target cell is considered to be the first time interval Z.
  • FIG. 7 is another schematic diagram of determining the first time interval according to an embodiment of the present application.
  • the N candidate target cells include candidate target cells that belong to a simultaneous TCI update list and/or candidate target cells that do not belong to any simultaneous TCI update list.
  • the candidate target cells in [3] in FIG7 belong to the same simultaneous TCI update list, and each candidate target cell is associated with a time interval.
  • each candidate target cell in [4] in FIG7 is associated with a time interval.
  • the candidate target cells in [1], [2] and [5] in FIG7 do not belong to any simultaneous TCI update list, and as described above, they are respectively associated with a time interval.
  • the "simultaneous TCI update list" described above can also be equivalently replaced by a "primary cell group” or a “secondary cell group”. Assuming that the switching signaling indicates a candidate target cell as the primary target cell, the time interval (Z QN ) associated with the primary target cell is considered to be the first time interval Z.
  • the first time interval associated with the candidate target cells belonging to the same simultaneous TCI-Update List (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group) is the same.
  • the N candidate target cells include candidate target cells that belong to a simultaneous TCI update list and/or candidate target cells that do not belong to any simultaneous TCI update list.
  • the candidate target cells in [3] in FIG. 7 belong to the same simultaneous TCI update list.
  • the same time interval enables multiple cells of carrier aggregation to apply a certain TCI state at the same time, for example, to use a certain simulated receiving or transmitting beam at the same time, which is conducive to simplifying the implementation of the terminal device.
  • the terminal device may not be able to implement it, or it may require a high implementation complexity.
  • the candidate target cells in [1], [2] and [5] in FIG. 7 do not belong to any simultaneous TCI update list. As mentioned above, they are respectively associated with a time interval.
  • each of the one or more candidate target cells configured is associated with a first time interval
  • the at least first time interval includes the largest time interval among the first time intervals associated with the master target cell and the candidate target cell belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group).
  • the terminal device applies the indicated TCI state in the cell after switching.
  • the cell after switching includes a main target cell and one or more candidate target cells, wherein the main target cell and the candidate target cell belong to the same simultaneous TCI update list, and/or, the same main cell group, and/or, the same secondary cell group.
  • the terminal device uses a first time interval Z, wherein the first time interval Z is the largest time interval among the time intervals associated with the main target cell and the candidate target cells belonging to the same simultaneous TCI update list, and/or, the same main cell group, and/or, the same secondary cell group. In this way, regardless of whether the time intervals associated with each candidate target cell are the same, the terminal device can start using the indicated TCI state at the same time on the above-mentioned set of main target cells and candidate target cells.
  • the first time interval associated with the candidate target cell is one or more symbols, wherein the one or more symbols are determined based on a first reference cell, and the first reference cell includes one of the following: the candidate target cell associated with the first time interval; the candidate target cell associated with the first time interval belongs to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belongs to the same master cell group (MCG, Master Cell Group), and/or, belongs to the same secondary cell group (SCG, Secondary Cell Group) and has the smallest subcarrier spacing among the candidate target cells; the candidate target cell with the smallest subcarrier spacing among the configured one or more candidate target cells; or, the serving cell with the smallest subcarrier spacing among the serving cells.
  • simultaneous TCI update list SimultaneousTCI-UpdateList
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • candidate target cell n does not belong to any simultaneous TCI update list
  • the Z n symbols are determined based on candidate target cell n.
  • the Z n symbols refer to the Z n symbols of candidate target cell n, or the Z n symbols are determined based on the subcarrier spacing of candidate target cell n.
  • the candidate target cell with the smallest subcarrier spacing among the candidate target cells belonging to a simultaneous TCI update list is recorded as candidate target cell m.
  • candidate target cell n also belongs to the simultaneous TCI update list
  • the Z n symbols are determined based on candidate target cell m.
  • the Z n symbols refer to the Z n symbols of candidate target cell m, or the Z n symbols are determined based on the subcarrier spacing of candidate target cell m.
  • the Z n symbols are determined based on the candidate target cell n.
  • the Z n symbols are determined based on the candidate target cell n, rather than based on the candidate target cell with the smallest subcarrier spacing among the candidate target cells belonging to a simultaneous TCI update list.
  • the indicated TCI state can be applied more quickly in a primary target cell, thereby quickly achieving switching to a certain primary target cell. Switching to other candidate target cells that belong to a simultaneous TCI update list with the primary target cell can be completed later.
  • the Z n symbols are determined based on the candidate target cell with the smallest subcarrier spacing among the N candidate target cells, or based on the serving cell with the smallest subcarrier spacing among the serving cells.
  • the first time interval Z is one or more symbols, where the symbol is determined based on a reference cell, and the reference cell is one of the following: a primary target cell; a cell with the smallest subcarrier spacing among the switched cells; a candidate target cell with the smallest subcarrier spacing among all candidate target cells; or a service cell with the smallest subcarrier spacing among all service cells.
  • the first time interval Z is the time interval associated with the main target cell indicated by the switching signaling. Since the cell after switching may include only one main target cell, and the sign of the time interval associated with a candidate target cell can be determined based on the candidate target cell, the following conclusion is satisfied: the sign of the first time interval Z is determined based on the main target cell.
  • the cell after switching may include the main target cell and other candidate target cells belonging to the same simultaneous TCI update list
  • the sign of the time interval associated with a candidate target cell can be determined based on the candidate target cell with the smallest subcarrier spacing among multiple candidate target cells belonging to the same simultaneous TCI update list
  • the sign of the first time interval Z is determined based on the cell with the smallest subcarrier spacing among the cells after switching.
  • the cell after switching can be equivalently replaced by a cell to which the indicated TCI state is applied.
  • Other ways to determine the reference cell are similar to the aforementioned method of determining the reference cell for the time interval associated with the candidate target cell, and will not be repeated.
  • the first TCI state indicated is applied in the switched cell, wherein the first time slot is determined based on a second reference cell, and the second reference cell includes one of the following: the main target cell; the cell with the smallest subcarrier spacing in the switched cell.
  • the terminal device applies the indicated TCI state in the switched cell at least after the first time interval Z after the last symbol of the ACK. Furthermore, the terminal device applies the indicated TCI state starting from the first time slot after Z; the first time slot is determined according to the second reference cell.
  • the terminal device applies the indicated TCI state in the switched cell at least one time interval Y after the last symbol of the ACK, i.e., reuses the time interval Y in the Rel-17 ICBM. Furthermore, the terminal device applies the indicated TCI state starting from the first time slot after Y. The first time slot is determined according to the second reference cell.
  • the terminal device applies the indicated TCI state on multiple carrier-aggregated cells, and the first time slot is determined based on the cell with the smallest subcarrier spacing.
  • the time slot refers to the time slot of the cell with the smallest subcarrier spacing, or the time slot is determined based on the subcarrier spacing of the cell with the smallest subcarrier spacing.
  • the terminal device applies the indicated TCI state only on the primary target cell, and the first time slot is determined based on the primary target cell, that is, the first time slot is the first time slot of the primary target cell.
  • the terminal device applies the indicated TCI state on a cell with multiple carrier aggregation, and the first time slot is determined based on the primary target cell.
  • second configuration information is received, wherein the second configuration information configures a third time interval for each of the one or more configured candidate target cells; or the second configuration information configures the same third time interval for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group); or the second configuration information configures a third time interval for the configured one or more candidate target cells.
  • simultaneous TCI update list SimultaneousTCI-UpdateList
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • a first time interval associated with a candidate target cell is equal to a third time interval configured for the candidate target cell.
  • the third time interval configured for the candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group) is the same.
  • the time interval associated with the candidate target cell is configured by the network device through RRC signaling, and the network device configures a third time interval (also referred to as the configured "first time interval Z") for the candidate target cell.
  • the "configuration" in the invention can also be equivalently replaced by “indication” or "activation”.
  • the embodiments of the present invention do not limit how to configure, indicate or activate, for example, through RRC signaling configuration, through DCI signaling indication, through MAC CE indication or activation.
  • the network device configures a third time interval for each of the one or more configured candidate target cells.
  • Z1-Zn in FIG6 correspond to a third time interval respectively.
  • the network device configures the same third time interval for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or belonging to the same master cell group (MCG, Master Cell Group), and/or belonging to the same secondary cell group (SCG, Secondary Cell Group).
  • Figure 8 is an example diagram of configuring the third time interval in an embodiment of the present application.
  • the network device configures a time interval for multiple candidate target cells belonging to the same simultaneous TCI update list, rather than configuring a time interval for each of the candidate target cells.
  • the associated time interval is a configured time interval, for example, Zp is a configured third time interval mentioned above.
  • the network device configures a third time interval for each of the one or more configured candidate target cells: the third time intervals configured for the candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group) are the same.
  • simultaneous TCI update list SimultaneousTCI-UpdateList
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the network device configures a third time interval for one or more configured candidate target cells.
  • FIG9 is another example diagram of configuring the third time interval in an embodiment of the present application. For example, Z in FIG9 .
  • the third time interval is one or more symbols, where the one or more symbols are determined according to the first reference cell.
  • a second time interval is reported for each of the one or more configured candidate target cells; or, the same second time interval is reported for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group); or, a second time interval is reported for the one or more configured candidate target cells.
  • simultaneous TCI update list SimultaneousTCI-UpdateList
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the first time interval associated with a candidate target cell is equal to the second time interval reported for the candidate target cell.
  • the second time interval reported by the candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group) is the same.
  • the terminal device determines the time interval Z in Figure 4 for each candidate target cell, and reports the minimum time interval (second time interval Z) that each candidate target cell can support to the network device as the device capability.
  • the network device determines a time interval (first time interval Z) for each candidate target cell based on the report of the terminal device, and configures it to the terminal device through RRC signaling.
  • the time interval finally used by the terminal device is still the time interval configured by the network device.
  • the time interval associated with the candidate target cell is a second time interval reported by the terminal device side (also referred to as the reported "first time interval Z").
  • the terminal device reports the minimum time interval (second time interval) that each candidate target cell can support to the network device as a device capability.
  • the network device directly uses this time interval, that is, it no longer configures the third time interval for the terminal device.
  • the time interval associated with the candidate target cell is the reported second time interval, that is, the time interval finally used by the terminal device is the time interval reported by itself.
  • the terminal device is configured with one or more candidate target cells, and then, a second time interval is reported for each candidate target cell. Then, the network device configures a third time interval for each candidate target cell, and the first time interval Z associated with each candidate target cell is the third time interval. Finally, the switching signaling is received. After the first time interval Z associated with the main target cell, the indicated beam is applied to the switched cell. After the cell switching is completed, the terminal device can report a second time interval Y for each service cell, and then, it is configured with a third time interval Y associated with each service cell. After receiving the beam indication signaling, the indicated beam is applied after the third time interval Y, that is, the ICBM of Rel-17 is used after the cell switching is completed.
  • the terminal device reports a second time interval for each of the one or more configured candidate target cells. For example, still referring to Z 1 -Zn in FIG6 , it is the second time interval reported by the terminal device.
  • the terminal device reports the same third time interval for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group).
  • the terminal device reports a time interval for multiple candidate target cells belonging to the same simultaneous TCI update list, instead of reporting a time interval for each of the candidate target cells.
  • the associated time intervals are all reported time intervals, for example, Zp is one of the above-mentioned second time intervals reported.
  • the terminal device reports a second time interval for each candidate target cell in one or more configured candidate target cells: the third time interval reported for the candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group) is the same.
  • simultaneous TCI update list SimultaneousTCI-UpdateList
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the terminal device reports a third time interval for one or more configured candidate target cells. For example, the terminal device does not distinguish candidate target cells and only reports a second time interval Z. For example, the terminal device can still report only a second time interval Z with reference to FIG. 9 .
  • the network device directly uses the second time interval reported by the terminal device, i.e., no longer configures the third time interval for the terminal device; optionally, the network device can also configure the third time interval based on the second time interval reported by the terminal device using any of the methods described above.
  • the network device and the terminal device directly use the second time interval as the first time interval associated with a candidate target cell; or, the network device configures a third time interval for the terminal device based on a report from the terminal device, and the first time interval associated with a candidate target cell ultimately used by the terminal device is still the time interval configured by the network device.
  • the second time interval is one or more symbols, wherein the one or more symbols are determined according to the first reference cell.
  • the method further includes: receiving third configuration information, wherein the third configuration information configures an inter-cell beam management mode or a cell switching mode.
  • the terminal device receives a TCI state indicated by a DCI, and the TCI state is associated with a non-service cell. If configured in inter-cell beam management mode, the terminal device does not perform cell switching, but performs beam switching so that the beam of the non-service cell can be used. If configured in cell switching mode, the terminal device switches to the non-service cell associated with the TCI state, and performs beam switching to use the beam of the non-service cell.
  • the non-service cell is one of the configured candidate target cells, so that the terminal device can quickly apply the configuration of the non-service cell after switching. If the terminal device is configured in cell switching mode, the DCI indicating the TCI state of the non-service cell is the signaling indicating the TCI state and cell switching.
  • the first indication information is a first DCI and/or a first MAC CE.
  • the first DCI is a DCI without downlink allocation, and the CRC of the first DCI is scrambled using a CS-RNTI, or the first DCI is a DCI with downlink allocation, and the CRC of the first DCI is scrambled using a C-RNTI.
  • the first indication information is a first DCI and a first MAC CE, wherein the first DCI is a DCI with downlink allocation, the CRC of the first DCI is scrambled using C-RNTI, the first DCI indicates the first TCI state, and the first MAC CE indicates cell switching.
  • the first indication information also indicates a CS-RNTI, wherein the CS-RNTI scrambles the CRC of the second DCI used to update the TCI state.
  • the first DCI indicating the TCI state of the non-serving cell is the DCI that schedules the PDSCH, or is called the DCI with DL assignment.
  • the CRC of the first DCI is scrambled with C-RNTI.
  • One or more fields of the first DCI, or one or more fields of the first MAC CE can indicate that the terminal device needs to perform cell switching.
  • the above DCI and/or MAC CE is the signaling (first indication information) indicating the first TCI state and cell switching.
  • the MAC CE is carried by the PDSCH scheduled by the DCI.
  • the DCI indicating the TCI state of the non-serving cell is the DCI without scheduling PDSCH, or DCI without DL assignment.
  • the CRC of the DCI is scrambled with CS-RNTI.
  • One or more fields of the DCI can indicate that the terminal device needs to switch cells.
  • the above DCI is the signaling indicating the TCI state and cell switching (first indication information).
  • the MAC CE is carried by the PDSCH scheduled by the DCI.
  • the signaling indicating the TCI state and cell switching also indicates the CS-RNTI.
  • the first indication information also indicates the CS-RNTI.
  • DCI without downlink allocation can indicate the TCI state without data scheduling, that is, only indicate the beam without scheduling data, so that the TCI state can be updated more quickly and flexibly, that is, there is no need to wait until there is data scheduling to indicate the beam.
  • the CRC of the above DCI is scrambled with CS-RNTI.
  • the CS-RNTI of the original serving cell has expired.
  • the CS-RNTI can be indicated in the signaling indicating the TCI state and the cell handover.
  • the terminal device is configured with one or more candidate target cells, each of which is associated with a time interval.
  • the terminal device is instructed to switch to a candidate target cell, and the TCI state associated with the candidate target cell is applied in the target cell after the time interval associated with the candidate target cell.
  • the invented method can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied to the switched cell, thereby achieving fast beam switching and cell switching.
  • the embodiment of the present application provides an information receiving method, which is applied to a terminal device side.
  • the embodiment of the present application can be combined with the embodiment of the first aspect, or can be implemented alone. The same contents as the embodiment of the first aspect are not repeated here.
  • FIG. 10 is another schematic diagram of the information receiving method according to an embodiment of the present application. As shown in FIG. 10 , the method includes:
  • the fourth TCI state indicated is applied in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of feedback information (HARQ-ACK) sent for the fourth indication information.
  • the reference symbol is the last symbol of the fourth indication information, or the last symbol of feedback information (HARQ-ACK) sent for the fourth indication information.
  • the terminal device can apply the indicated fourth TCI state in the cell after switching.
  • the terminal device can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied in the cell after switching, thereby achieving fast beam switching and cell switching.
  • FIG. 11 is another schematic diagram of the signaling sending and receiving process of an embodiment of the present application.
  • the terminal device first performs beam switching and then performs cell switching, and implements the TCI state indicated by the cell application after switching in two steps.
  • the terminal device receives the third signaling indicating the TCI state, which only indicates beam switching but not cell switching, that is, indicates the fourth TCI state.
  • the signaling can continue to use the TCI state indication signaling in the inter-cell beam management to instruct the terminal device to use the beam of the non-serving cell, but does not switch the cell. Therefore, the terminal device applies the indicated fourth TCI state in the serving cell after at least the fourth time interval (Y) after the last symbol of the ACK for the third indication information.
  • Y fourth time interval
  • the terminal device completes the beam switching to the non-serving cell.
  • the terminal device receives the fourth indication information indicating the cell switching, which only indicates the cell switching.
  • the signaling does not indicate the TCI state, or does not indicate an updated TCI state.
  • the terminal device needs to perform a cell switch so that the indicated TCI state can be applied in the non-serving cell.
  • the terminal device applies the fourth TCI state indicated in the switched cell at least fifth time interval (X) after the last symbol of the fourth indication information, or the terminal device applies the fourth TCI state indicated in the switched cell at least fifth time interval (X) after the last symbol of the ACK sent in response to the fourth indication information.
  • the network device may use any of the aforementioned methods for configuring the "third time interval” to configure the time interval X.
  • the terminal device may use any of the aforementioned methods for reporting the "second time interval” to report the time interval X.
  • the embodiments of the second aspect may be combined with the embodiments of the first aspect, as described below.
  • FIG. 12 is another schematic diagram of the information receiving method according to an embodiment of the present application. As shown in FIG. 12 , the method includes:
  • the sixth TCI state indicated is applied in the switched cell, wherein the reference symbol is the last symbol of the seventh indication information, or the last symbol of the feedback information (HARQ-ACK) for the seventh indication information.
  • the reference symbol is the last symbol of the seventh indication information, or the last symbol of the feedback information (HARQ-ACK) for the seventh indication information.
  • the method shown in FIG. 12 is for the case where the scenarios of FIG. 11 and FIG. 4 coexist.
  • the fifth TCI state is the same as the first TCI state of the embodiment of the first aspect
  • the sixth TCI state is the same as the fourth TCI state of the embodiment of the second aspect
  • the sixth time interval (Z) is the same as the first time interval (Z) of the embodiment of the first aspect
  • the seventh time interval (Y) is the same as the fourth time interval (Y) of the embodiment of the second aspect
  • the eighth time interval (X) is the same as the fifth time interval (X) of the embodiment of the second aspect.
  • FIG. 13 is another schematic diagram of the signaling sending and receiving process of an embodiment of the present application.
  • the network device will instruct the terminal device to switch to the main target cell through the seventh indication information or the fifth indication information. If the network device finds that there is a more suitable beam (corresponding to the fifth TCI state) that can be applied to the main target cell, that is, the beam of the main target cell has changed and it is necessary to change the beam, as shown in the upper figure of FIG13, then the fifth TCI state and the cell switching can be indicated in the fifth indication information; that is, the TCI state indication and the cell switching indication of FIG4 are applied on the basis of FIG11, so that the appropriate beam can be switched to more quickly; in this case, it is equivalent to switching from the scene of FIG11 to the scene of FIG4, and the terminal device applies the fifth TCI state in the main target cell based on FIG4 and its related methods; if the network device finds that there is no need to change the beam, as shown in the lower figure of FIG13, only the cell switching is indicated through the seventh indication information, and the sixth TCI state
  • the terminal device further reports a ninth time interval and a tenth time interval; and receives fourth configuration information, wherein the fourth configuration information configures an eleventh time interval, a twelfth time interval, and a thirteenth time interval.
  • the ninth time interval and the tenth time interval are similar to the “second time interval” of the embodiment of the first aspect, and the eleventh time interval, the twelfth time interval, and the thirteenth time interval are similar to the “third time interval” of the embodiment of the first aspect.
  • the ninth time interval corresponds to the "seventh time interval" (Y)
  • the tenth time interval corresponds to the "eighth time interval” (X)
  • the eleventh time interval corresponds to the "eighth time interval” (X)
  • the twelfth time interval corresponds to the "seventh time interval” (Y)
  • the thirteenth time interval corresponds to the "sixth time interval” (Z).
  • the terminal device continues to use the existing technology of inter-cell beam management to report the "ninth time interval Y", and replaces the "second time interval Z" of the embodiment of the first aspect with the "tenth time interval X”, and the terminal device can use any of the methods for reporting the "second time interval Z" described above to report the "tenth time interval X".
  • the network device determines the "twelfth time interval Y", "eleventh time interval X" and "thirteenth time interval Z", and configures them to the terminal device through RRC signaling.
  • the network device can use any of the methods for configuring the "third time interval Z" described above to configure the "eleventh time interval X" and the "thirteenth time interval Z".
  • the terminal device reports the second time interval Z, and the network device determines and configures the third time interval Z based on the report.
  • the terminal device here does not report the second time interval Z, but the network device can determine and configure the "thirteenth time interval Z" based on the reported "tenth time interval X" and "ninth time interval Y". This is because the "thirteenth time interval Z" includes the beam switching time and the cell switching time, the "tenth time interval X" includes the cell switching time, and the "ninth time interval Y" includes the beam switching time, and the network device can roughly infer Z based on X and Y. Without loss of generality, the terminal device can also report the "ninth time interval Y" and the "second time interval Z", and the network device determines and configures the "eleventh time interval X" based on the report.
  • the network device configures "the eleventh time interval X", “the twelfth time interval Y” and “the thirteenth time interval Z", which is similar to the configuration "the third time interval Z" of the embodiment of the first aspect.
  • the terminal device can apply the indicated fourth TCI state in the cell after switching.
  • the terminal device can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied in the cell after switching, thereby achieving fast beam switching and cell switching.
  • the embodiment of the present application provides an information sending method, which is applied to a network device side.
  • the embodiment of the present application can be combined with the embodiment of the first aspect, or can be implemented alone. The same contents as the embodiment of the first aspect are not repeated here.
  • FIG. 14 is a schematic diagram of a method for sending information according to an embodiment of the present application. As shown in FIG. 14 , the method includes:
  • HARQ-ACK receiving feedback information
  • HARQ-ACK receiving feedback information
  • the first TCI state is used to apply the first TCI state indicated in the switched cell after at least a first time interval has passed after the last symbol of the feedback information (HARQ-ACK).
  • the method further includes: sending first configuration information, wherein the first configuration information configures one or more candidate target cells.
  • the method further includes: sending second configuration information, wherein the second configuration information configures a third time interval for each of the one or more candidate target cells configured by the first configuration information, and a first time interval associated with a candidate target cell is equal to the configured third time interval; or, the second configuration information configures the same third time interval for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group); or, the second configuration information configures a third time interval for the configured one or more candidate target cells.
  • simultaneous TCI update list SimultaneousTCI-UpdateList
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the method further includes: sending third configuration information, wherein the third configuration information configures an inter-cell beam management mode or a cell switching mode.
  • FIG. 14 is only a schematic illustration of the embodiment of the present application, but the present application is not limited thereto.
  • the execution order between the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced.
  • Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of the above FIG. 14.
  • the terminal device is configured with one or more candidate target cells, each candidate target cell is associated with a time interval.
  • the terminal device is instructed to switch to a candidate target cell, and the TCI state associated with the candidate target cell is applied in the target cell after the time interval associated with the candidate target cell.
  • the embodiment of the present application provides an information sending method, which is applied to the network device side.
  • the embodiment of the present application can be combined with the embodiment of the second aspect, or can be implemented alone.
  • the same content as the embodiment of the second aspect is not repeated.
  • FIG. 15 is another schematic diagram of the information sending method according to an embodiment of the present application. As shown in FIG. 15 , the method includes:
  • the terminal device receives feedback information (HARQ-ACK) for the third indication information, wherein, after at least a fourth time interval has passed after the last symbol of the feedback information (HARQ-ACK) for the third indication information, the terminal device applies the fourth TCI state indicated in the serving cell;
  • HARQ-ACK feedback information
  • the terminal device After at least a fifth time interval has passed after the reference symbol, the terminal device applies the fourth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of the feedback information (HARQ-ACK) for the fourth indication information.
  • the reference symbol is the last symbol of the fourth indication information, or the last symbol of the feedback information (HARQ-ACK) for the fourth indication information.
  • the terminal device can apply the indicated fourth TCI state in the cell after switching.
  • the terminal device can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied in the cell after switching, thereby achieving fast beam switching and cell switching.
  • FIG. 16 is another schematic diagram of the information sending method according to an embodiment of the present application. As shown in FIG. 16 , the method includes:
  • the terminal device receives feedback information (HARQ-ACK) for the fifth indication information, wherein, after at least a sixth time interval has passed after the last symbol of the feedback information (HARQ-ACK) sent for the fifth indication information, the terminal device applies the fifth TCI state indicated in the switched cell,
  • HARQ-ACK feedback information
  • HARQ-ACK feedback information
  • the terminal device applies the indicated sixth TCI state in the serving cell
  • the terminal device applies the sixth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the seventh indication information, or the last symbol of the feedback information (HARQ-ACK) for the seventh indication information.
  • the reference symbol is the last symbol of the seventh indication information, or the last symbol of the feedback information (HARQ-ACK) for the seventh indication information.
  • the terminal device can apply the indicated fourth TCI state in the cell after switching.
  • the terminal device can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied in the cell after switching, thereby achieving fast beam switching and cell switching.
  • the embodiment of the present application provides an information receiving device, which may be, for example, a terminal device, or may be one or more components or assemblies configured in the terminal device, and the same contents as those in the embodiment of the first aspect will not be repeated.
  • FIG17 is a schematic diagram of an information receiving device according to an embodiment of the present application. As shown in FIG17 , the information receiving device 1700 includes:
  • a receiving unit 1701 receives first indication information, wherein the first indication information indicates a first TCI state and a cell switching.
  • a sending unit 1702 sends feedback information (HARQ-ACK); wherein, after at least a first time interval has passed after the last symbol of the feedback information (HARQ-ACK), the first TCI state indicated is applied in the switched cell.
  • HARQ-ACK feedback information
  • the receiving unit 1701 further receives first configuration information, wherein the first configuration information configures one or more candidate target cells.
  • the first indication information indicates a candidate target cell as a primary target cell among the one or more configured candidate target cells.
  • each of the one or more configured candidate target cells is associated with a first time interval, and the at least first time interval includes the first time interval associated with the primary target cell.
  • the indicated first TCI state is associated with a cell, which is the primary target cell, or a cell other than the primary target cell.
  • the switched cell includes: the main target cell; or, the main target cell and one or more candidate target cells other than the main target cell, wherein the main target cell and one or more candidate target cells other than the main target cell belong to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or belong to the same master cell group (MCG), and/or belong to the same secondary cell group (SCG).
  • simultaneous TCI update list SimultaneousTCI-UpdateList
  • MCG master cell group
  • SCG secondary cell group
  • the first time interval associated with candidate target cells belonging to the same simultaneous TCI-Update List (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group) is the same.
  • the first time interval associated with the candidate target cell is one or more symbols, which are determined based on a first reference cell
  • the first reference cell includes one of the following: the candidate target cell associated with the first time interval; the candidate target cell associated with the first time interval belongs to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belongs to the same master cell group (MCG, Master Cell Group), and/or, belongs to the same secondary cell group (SCG, Secondary Cell Group)
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the first TCI state indicated is applied in the switched cell, wherein the first time slot is determined based on a second reference cell, and the second reference cell includes one of the following: the main target cell; the cell with the smallest subcarrier spacing in the switched cell.
  • the receiving unit 1701 also receives second configuration information, wherein the second configuration information configures a third time interval for each of the one or more candidate target cells configured; or, the second configuration information configures the same third time interval for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same main cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group); or, the second configuration information configures a third time interval for the one or more candidate target cells configured.
  • the second configuration information configures a third time interval for each of the one or more candidate target cells configured.
  • the first time interval associated with a candidate target cell is equal to the third time interval configured for the candidate target cell.
  • the second configuration information configures a third time interval for each of the one or more candidate target cells configured
  • the third time interval is one or more symbols, wherein the one or more symbols are determined according to the first reference cell.
  • the information receiving device 1700 also includes: a reporting unit 1703, which reports a second time interval for each of the one or more configured candidate target cells; or, it reports the same second time interval for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group); or, it reports a second time interval for the configured one or more candidate target cells.
  • a reporting unit 1703 which reports a second time interval for each of the one or more configured candidate target cells; or, it reports the same second time interval for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group); or, it reports a second time interval for the configured one or more candidate target cells.
  • MCG Master Cell
  • a first time interval associated with a candidate target cell is equal to the second time interval reported for the candidate target cell.
  • the second time interval reported by the candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group) is the same.
  • the second time interval is one or more symbols, wherein the one or more symbols are determined according to the first reference cell.
  • the first TCI state is applied to at least one of the following channels or signals of the primary target cell: SSB; PRACH; type 1 physical downlink control channel common search space set Type1-PDCCH CSS set; CORESET associated with Type1-PDCCH CSS set; type 2 physical downlink control channel common search space set Type2-PDCCH CSS set; CORESET associated with Type2-PDCCH CSS set; PUSCH scheduled by random access response uplink grant RAR (Random Access Response) UL grant.
  • RAR Random Access Response
  • the receiving unit 1701 receives second indication information after receiving the first indication information, wherein the second indication information indicates a second TCI state; wherein, when a first cell set to which the first TCI state indicated is applied is a subset of a second cell set to which the second TCI state indicated is applied, the second TCI state indicated is applied on the second cell set, wherein the second TCI state is the same as the first TCI state.
  • the information receiving device 1700 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.
  • FIG. 17 only exemplifies the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
  • the terminal device is instructed to switch to a candidate target cell, and the TCI state associated with the candidate target cell is applied in the target cell after a time interval associated with the candidate target cell.
  • the invented method can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied to the switched cell, thereby achieving fast beam switching and cell switching.
  • the embodiment of the present application provides an information receiving device, which may be, for example, a terminal device, or may be one or more components or assemblies configured in the terminal device; in addition, the same contents as those in the embodiment of the second aspect are not repeated here.
  • FIG18 is another schematic diagram of an information receiving device according to an embodiment of the present application. As shown in FIG18 , the information receiving device 1800 includes:
  • a second receiving unit 1801 receives third indication information, wherein the third indication information indicates a fourth TCI state;
  • the second sending unit 1802 sends feedback information (HARQ-ACK) for the third indication information, wherein the fourth TCI state indicated is applied in the serving cell after at least a fourth time interval has passed after the last symbol of the feedback information (HARQ-ACK) sent for the third indication information; the second receiving unit 1801 also receives fourth indication information, wherein the fourth indication information indicates a cell switch; and the fourth TCI state indicated is applied in the switched cell after at least a fifth time interval has passed after a reference symbol, wherein the reference symbol is the last symbol of the fourth indication information, or is the last symbol of the feedback information (HARQ-ACK) sent by the second sending unit 1802 for the fourth indication information.
  • HARQ-ACK feedback information
  • the terminal device can apply the indicated fourth TCI state in the cell after switching.
  • the terminal device can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied in the cell after switching, thereby achieving fast beam switching and cell switching.
  • the embodiment of the fifth aspect may be combined with the embodiment of the sixth aspect to execute the method shown in FIG. 12 , which will not be repeated here.
  • the reporting unit 1703 and/or the second reporting unit (not shown in Figure 18) configured in the information receiving device 1800 can also report the ninth time interval and the tenth time interval; the receiving unit 1701 and/or the second receiving unit 1801 also receives fourth configuration information, and the fourth configuration information configures the eleventh time interval, the twelfth time interval and the thirteenth time interval.
  • the information receiving device 1800 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.
  • FIG. 18 only exemplifies the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
  • the terminal device can apply the indicated fourth TCI state in the cell after switching.
  • the terminal device can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied in the cell after switching, thereby achieving fast beam switching and cell switching.
  • the embodiment of the present application provides an information sending device.
  • the device may be, for example, a network device, or may be one or more components or assemblies configured in the network device, and the same contents as those in the embodiment of the first aspect will not be repeated.
  • FIG19 is a schematic diagram of an information sending device according to an embodiment of the present application. As shown in FIG19 , the information sending device 1900 includes:
  • the third sending unit 1901 sends first indication information, wherein the first indication information indicates a first TCI state and a cell switching.
  • a third receiving unit 1902 receives feedback information (HARQ-ACK); wherein the first TCI state is used to apply the first TCI state indicated in the switched cell after at least a first time interval has passed after the last symbol of the feedback information (HARQ-ACK).
  • HARQ-ACK feedback information
  • the terminal device is instructed to switch to a candidate target cell, and the TCI state associated with the candidate target cell is applied in the target cell after a time interval associated with the candidate target cell.
  • the invented method can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied on the switched cell, thereby realizing fast beam switching and cell switching.
  • the third sending unit 1901 further sends first configuration information, where the first configuration information configures one or more candidate target cells.
  • Sending second configuration information wherein the third sending unit 1901 also sends second configuration information, wherein the second configuration information configures a third time interval for each of the one or more candidate target cells configured by the first configuration information, and the first time interval associated with a candidate target cell is equal to the configured third time interval; or, the second configuration information configures the same third time interval for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same main cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group); or, the second configuration information configures a third time interval for the configured one or more candidate target cells.
  • simultaneous TCI update list SimultaneousTCI-UpdateList
  • MCG main cell group
  • SCG Secondary Cell Group
  • the third sending unit 1901 further sends third configuration information, wherein the third configuration information configures an inter-cell beam management mode or a cell switching mode.
  • the information sending device 1900 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.
  • FIG. 19 only exemplifies the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
  • the terminal device is instructed to switch to a candidate target cell, and the TCI state associated with the candidate target cell is applied in the target cell after a time interval associated with the candidate target cell.
  • the invented method can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied to the switched cell, thereby achieving fast beam switching and cell switching.
  • the embodiment of the present application provides an information sending device.
  • the device may be, for example, a network device, or may be one or more components or assemblies configured in the network device, and the contents that are the same as those in the embodiment of the second aspect will not be repeated.
  • FIG20 is another schematic diagram of an information sending device according to an embodiment of the present application. As shown in FIG20 , the information sending device 2000 includes:
  • a fourth sending unit 2001 sends third indication information, wherein the third indication information indicates a fourth TCI state;
  • a fourth receiving unit 2002 which receives feedback information (HARQ-ACK) for the third indication information, wherein, after at least a fourth time interval has passed after the last symbol of the feedback information (HARQ-ACK) for the third indication information, the terminal device applies the fourth TCI state indicated in the serving cell;
  • HARQ-ACK feedback information
  • the fourth sending unit 2001 further sends fourth indication information, wherein the fourth indication information indicates cell switching;
  • the terminal device applies the fourth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of the feedback information (HARQ-ACK) for the fourth indication information.
  • the reference symbol is the last symbol of the fourth indication information, or the last symbol of the feedback information (HARQ-ACK) for the fourth indication information.
  • the terminal device can apply the indicated fourth TCI state in the cell after switching.
  • the terminal device can avoid ambiguity between the terminal device and the network device about when the TCI state can be applied in the cell after switching, thereby achieving fast beam switching and cell switching.
  • the embodiment of the seventh aspect may be combined with the embodiment of the eighth aspect to execute the method shown in FIG. 16 , which will not be repeated here.
  • the information sending device 2000 may also include other components or modules, and the specific contents of these components or modules may refer to the relevant technology.
  • FIG. 20 only exemplifies the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned various components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
  • the terminal device can apply the indicated fourth TCI state in the cell after switching. Therefore, it is possible to avoid ambiguity between the terminal device and the network device about when the TCI state can be applied in the cell after switching, thereby achieving fast beam switching and cell switching.
  • An embodiment of the present application also provides a communication system, and reference may be made to FIG1 .
  • the contents that are the same as those of the embodiments of the first to eighth aspects will not be repeated here.
  • the communication system 100 may include at least: a network device and a terminal device, wherein:
  • the network device sends first indication information, wherein the first indication information indicates a first TCI state and a cell switch; and receives feedback information (HARQ-ACK);
  • the terminal device receives the first indication information; and sends the feedback information (HARQ-ACK), wherein the first TCI state indicated is applied in the switched cell after at least a first time interval has passed after the last symbol of the feedback information (HARQ-ACK).
  • HARQ-ACK feedback information
  • the communication system 100 may further include at least: a network device and a terminal device, wherein:
  • the network device sends third indication information, wherein the third indication information indicates a fourth TCI state; and receives feedback information (HARQ-ACK) for the third indication information, wherein, after at least a fourth time interval has passed after a last symbol of the feedback information (HARQ-ACK) for the third indication information, the terminal device applies the indicated fourth TCI state in a serving cell;
  • HARQ-ACK feedback information
  • the network device also sends fourth indication information, wherein the fourth indication information indicates cell switching; wherein, after at least a fifth time interval after a reference symbol, the terminal device applies the fourth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of feedback information (HARQ-ACK) for the fourth indication information.
  • the fourth indication information indicates cell switching
  • the terminal device applies the fourth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of feedback information (HARQ-ACK) for the fourth indication information.
  • HARQ-ACK last symbol of feedback information
  • the communication system 100 may further include at least: a network device and a terminal device, wherein:
  • the network device sends fifth indication information, wherein the fifth indication information indicates a fifth TCI state and a cell switch; and receives feedback information (HARQ-ACK) for the fifth indication information, wherein, after at least a sixth time interval has passed after the last symbol of the feedback information (HARQ-ACK) sent for the fifth indication information, the terminal device applies the indicated fifth TCI state in the switched cell;
  • HARQ-ACK feedback information
  • the network device further sends sixth indication information, wherein the sixth indication information indicates a sixth TCI state
  • HARQ-ACK feedback information
  • the network device further sends seventh indication information, wherein the seventh indication information indicates cell switching;
  • the terminal device applies the sixth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the seventh indication information, or the last symbol of the feedback information (HARQ-ACK) for the seventh indication information.
  • the reference symbol is the last symbol of the seventh indication information, or the last symbol of the feedback information (HARQ-ACK) for the seventh indication information.
  • An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.
  • a network device which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.
  • FIG21 is a schematic diagram of the composition of a network device according to an embodiment of the present application.
  • the network device 2100 may include: a processor 2110 (e.g., a central processing unit CPU) and a memory 2120; the memory 2120 is coupled to the processor 2110.
  • the memory 2120 may store various data; in addition, it may store a program 2930 for information processing, and the program 2130 may be executed under the control of the processor 2110.
  • the network device 2100 may further include: a transceiver 2140 and an antenna 2150, etc.; wherein the functions of the above components are similar to those of the prior art and are not described in detail here. It is worth noting that the network device 2100 does not necessarily include all the components shown in FIG21 ; in addition, the network device 2100 may also include components not shown in FIG21 , which may refer to the prior art.
  • the embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.
  • FIG22 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 2200 may include a processor 2210 and a memory 2220; the memory 2220 stores data and programs and is coupled to the processor 2210. It is worth noting that the figure is exemplary; other types of structures may also be used to supplement or replace the structure to implement telecommunication functions or other functions.
  • the processor 2210 may be configured to execute a program to implement the information receiving method as described in the embodiment of the first aspect or the embodiment of the second aspect.
  • the processor 2210 may be configured to perform the following control: receiving first indication information, wherein the first indication information indicates a first TCI state and a cell switch, and sending feedback information (HARQ-ACK); after at least a first time interval has passed after the last symbol of the feedback information (HARQ-ACK), applying the indicated first TCI state in the switched cell.
  • HARQ-ACK feedback information
  • the terminal device 2200 may further include: a communication module 2230, an input unit 2240, a display 2250, and a power supply 2260.
  • the functions of the above components are similar to those of the prior art and are not described in detail herein. It is worth noting that the terminal device 2200 does not necessarily include all the components shown in FIG. 22 , and the above components are not necessary; in addition, the terminal device 2200 may further include components not shown in FIG. 22 , and reference may be made to the prior art.
  • An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program enables the terminal device to execute the information receiving method described in the embodiments of the first aspect to the second aspect.
  • An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the information receiving method described in the embodiments of the first aspect to the second aspect.
  • An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the information sending method described in the embodiments of the third aspect to the fourth aspect.
  • An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the information sending method described in the embodiments of the third aspect to the fourth aspect.
  • the above devices and methods of the present application can be implemented by hardware, or by hardware combined with software.
  • the present application relates to such a computer-readable program, which, when executed by a logic component, enables the logic component to implement the above-mentioned devices or components, or enables the logic component to implement the various methods or steps described above.
  • the present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.
  • the method/device described in conjunction with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams shown in the figure and/or one or more combinations of the functional block diagrams may correspond to various software modules of the computer program flow or to various hardware modules.
  • These software modules may correspond to the various steps shown in the figure, respectively.
  • These hardware modules may be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).
  • FPGA field programmable gate array
  • the software module may be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
  • a storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor.
  • the processor and the storage medium may be located in an ASIC.
  • the software module may be stored in a memory of a mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.
  • the functional blocks described in the drawings and/or one or more combinations of functional blocks it can be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any appropriate combination thereof for performing the functions described in the present application.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field programmable gate array
  • it can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.
  • a method for receiving information, applied to a terminal device comprising:
  • the first indication information indicates a first TCI state and a cell handover
  • the first TCI state indicated is applied in the switched cell.
  • First configuration information is received, wherein the first configuration information configures one or more candidate target cells.
  • each of the one or more configured candidate target cells is associated with a first time interval, and the at least first time interval includes the first time interval associated with the main target cell.
  • the main target cell and one or more candidate target cells other than the main target cell wherein the main target cell and one or more candidate target cells other than the main target cell belong to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or belong to the same main cell group (MCG, Master Cell Group), and/or belong to the same secondary cell group (SCG, Secondary Cell Group).
  • simultaneous TCI update list SimultaneousTCI-UpdateList
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the first time interval associated with the candidate target cell is one or more symbols, wherein the one or more symbols are determined according to a first reference cell, and the first reference cell includes one of the following:
  • the candidate target cell associated with the first time interval belongs to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belongs to the same master cell group (MCG, Master Cell Group), and/or, belongs to the same secondary cell group (SCG, Secondary Cell Group)
  • the candidate target cell has the smallest subcarrier spacing among the candidate target cells;
  • the serving cell with the smallest subcarrier spacing among the serving cells.
  • the first time slot is determined according to a second reference cell, and the second reference cell includes one of the following:
  • the cell with the smallest subcarrier spacing among the switched cells is the cell with the smallest subcarrier spacing among the switched cells.
  • the second configuration information configures a third time interval for each of the one or more configured candidate target cells.
  • the second configuration information configures the same third time interval for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group); or
  • the second configuration information configures a third time interval for the configured one or more candidate target cells.
  • the third time interval configured for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group) is the same.
  • the third time interval is one or more symbols, wherein the one or more symbols are determined based on the first reference cell.
  • a second time interval is reported for the configured one or more candidate target cells.
  • the second time interval is one or more symbols, wherein the one or more symbols are determined based on the first reference cell.
  • the first TCI state is applied to at least one of the following channels or signals of the primary target cell:
  • Random Access Response Random Access Response
  • the second TCI state indicated is applied on the second set of cells.
  • each of the one or more candidate target cells configured is associated with a first time interval
  • the at least first time interval includes the largest time interval among the first time intervals associated with the master target cell and the candidate target cell belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same main cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group).
  • Receive third configuration information wherein the third configuration information configures an inter-cell beam management mode or a cell switching mode.
  • the first indication information is a first DCI, wherein the first DCI is a DCI without downlink allocation, and the CRC of the first DCI is scrambled using a CS-RNTI, or the first DCI is a DCI with downlink allocation, and the CRC of the first DCI is scrambled using a C-RNTI.
  • the first indication information is a first DCI and a first MAC CE, wherein the first DCI is a DCI with downlink allocation, the CRC of the first DCI is scrambled using C-RNTI, the first DCI indicates the first TCI state, and the first MAC CE indicates cell switching.
  • the first indication information also indicates a CS-RNTI, wherein the CS-RNTI scrambles the CRC of the second DCI used to update the TCI state.
  • a method for receiving information, applied to a terminal device comprising:
  • the fourth TCI state indicated is applied in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of feedback information (HARQ-ACK) sent for the fourth indication information.
  • the reference symbol is the last symbol of the fourth indication information, or the last symbol of feedback information (HARQ-ACK) sent for the fourth indication information.
  • a method for receiving information, applied to a terminal device comprising:
  • the fifth indication information indicates a fifth TCI state and a cell switching
  • the fifth TCI state indicated is applied in the switched cell,
  • the sixth TCI state indicated is applied in the switched cell, wherein the reference symbol is the last symbol of the seventh indication information, or the last symbol of feedback information (HARQ-ACK) for the seventh indication information.
  • the reference symbol is the last symbol of the seventh indication information, or the last symbol of feedback information (HARQ-ACK) for the seventh indication information.
  • Fourth configuration information is received, where the fourth configuration information configures an eleventh time interval, a twelfth time interval, and a thirteenth time interval.
  • a method for sending information, applied to a network device comprising:
  • the first indication information indicates a first TCI state and a cell switch
  • HARQ-ACK Receive feedback information
  • the first TCI state is used to apply the first TCI state indicated in the switched cell after at least a first time interval has passed after the last symbol of the feedback information (HARQ-ACK).
  • HARQ-ACK feedback information
  • the second configuration information configures a third time interval for each of the one or more candidate target cells configured by the first configuration information, and the first time interval associated with one candidate target cell is equal to the configured third time interval;
  • the second configuration information configures the same third time interval for candidate target cells belonging to the same simultaneous TCI update list (simultaneousTCI-UpdateList), and/or, belonging to the same master cell group (MCG, Master Cell Group), and/or, belonging to the same secondary cell group (SCG, Secondary Cell Group); or
  • the second configuration information configures a third time interval for the configured one or more candidate target cells.
  • the third configuration information configures an inter-cell beam management mode or a cell switching mode.
  • a method for sending information, applied to a network device comprising:
  • HARQ-ACK feedback information
  • the terminal device applies the fourth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of the feedback information (HARQ-ACK) for the fourth indication information.
  • the reference symbol is the last symbol of the fourth indication information, or the last symbol of the feedback information (HARQ-ACK) for the fourth indication information.
  • a method for sending information, applied to a network device comprising:
  • the fifth indication information indicates a fifth TCI state and a cell switching
  • HARQ-ACK feedback information
  • HARQ-ACK feedback information
  • the terminal device applies the sixth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the seventh indication information, or the last symbol of the feedback information (HARQ-ACK) for the seventh indication information.
  • the reference symbol is the last symbol of the seventh indication information, or the last symbol of the feedback information (HARQ-ACK) for the seventh indication information.
  • a terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the information receiving method as described in any one of Notes 1 to 30.
  • a network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the information sending method as described in any one of Notes 31 to 36.
  • a communication system comprising: a network device and a terminal device, wherein:
  • the network device sends first indication information, wherein the first indication information indicates a first TCI state and a cell switch; and receives feedback information (HARQ-ACK);
  • the terminal device receives the first indication information; and sends the feedback information (HARQ-ACK), wherein the first TCI state indicated is applied in the switched cell after at least a first time interval has passed after the last symbol of the feedback information (HARQ-ACK).
  • HARQ-ACK feedback information
  • a communication system comprising: a network device and a terminal device, wherein:
  • the network device sends third indication information, wherein the third indication information indicates a fourth TCI state; and receives feedback information (HARQ-ACK) for the third indication information, wherein, after at least a fourth time interval has passed after a last symbol of the feedback information (HARQ-ACK) for the third indication information, the terminal device applies the indicated fourth TCI state in a serving cell;
  • HARQ-ACK feedback information
  • the network device also sends fourth indication information, wherein the fourth indication information indicates cell switching; wherein, after at least a fifth time interval after a reference symbol, the terminal device applies the fourth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of feedback information (HARQ-ACK) for the fourth indication information.
  • the fourth indication information indicates cell switching
  • the terminal device applies the fourth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the fourth indication information, or the last symbol of feedback information (HARQ-ACK) for the fourth indication information.
  • HARQ-ACK last symbol of feedback information
  • a communication system comprising: a network device and a terminal device, wherein:
  • the network device sends fifth indication information, wherein the fifth indication information indicates a fifth TCI state and a cell switch; and receives feedback information (HARQ-ACK) for the fifth indication information, wherein, after at least a sixth time interval has passed after the last symbol of the feedback information (HARQ-ACK) sent for the fifth indication information, the terminal device applies the indicated fifth TCI state in the switched cell;
  • HARQ-ACK feedback information
  • the network device further sends sixth indication information, wherein the sixth indication information indicates a sixth TCI state
  • HARQ-ACK feedback information
  • the network device further sends seventh indication information, wherein the seventh indication information indicates cell switching;
  • the terminal device applies the sixth TCI state indicated in the switched cell, wherein the reference symbol is the last symbol of the seventh indication information, or the last symbol of the feedback information (HARQ-ACK) for the seventh indication information.
  • the reference symbol is the last symbol of the seventh indication information, or the last symbol of the feedback information (HARQ-ACK) for the seventh indication information.

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Abstract

本申请实施例提供一种信息接收、信息发送方法以及装置。所述方法包括：终端设备接收第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换，发送反馈信息(HARQ-ACK)；在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。由此，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。

Description

信息接收、信息发送方法以及装置 技术领域
本申请实施例涉及通信技术领域。
背景技术
3GPP标准化组织在版本17(release，Rel-17)的标准化过程中，对小区间波束管理(ICBM，Inter-Cell Beam Management)进行了标准化相关的工作。其中，Rel-17中的终端设备可以使用非服务小区的波束，但并不切换到非服务小区。
3GPP标准化组织在版本17(release，Rel-17)的标准化过程中，对统一的(unified)传输配置指示(transmission configuration indication，TCI)进行了标准化相关的工作。其中，Rel-17中的unified TCI主要是针对sTRP(single transmission and reception point)场景进行设计的。Rel-17的小区间波束管理基于unified TCI框架。
应该注意，上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的，不能仅仅因为这些方案在本申请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
Rel-17对小区间波束管理(ICBM，Inter-Cell Beam Management)进行了标准化。ICBM包括测量、上报和波束指示。对于测量，终端设备能够基于非服务小区(non-serving cell)的SSB进行L1-RSRP测量。对于上报，终端设备将L1-RSRP测量结果上报给网络设备。对于波束指示，网络设备可以为终端设备指示与非服务小区关联的传输配置指示(transmission configuration indication，TCI)状态(state)。通过这种方式，终端设备可以使用非服务小区的波束，例如，使用波束向非服务小区发送信息或从非服务小区接收信息。尽管终端设备能够使用非服务小区的波束，但终端设备的服务小区不发生变化，即终端设备不会通过切换过程切换到非服务小区。因此，终端设备仍然在服务小区的带宽内，基于服务小区的相关配置，在服务小区上应用指示的与非服务小区关联的TCI state。这里，非服务小区指的是物理小区ID(PCI，Physical Cell ID)与服务小区的物理小区ID不同的小区。
Rel-17对统一的(unified)TCI(transmission configuration indication)进行了标准化。Rel-17 ICBM基于Rel-17 unified TCI。Rel-17 unified TCI针对sTRP(single transmission and reception point)场景。DCI格式1_1或DCI格式1_2的传输配置指示(TCI，transmission configuration indication)字段指示一个或多个TCI状态(TCI state)。DCI格式1_1或DCI格式1_2可以调度下行数据，称为DCI format 1_1/1_2 with DL assignment，也可以不调度下行数据，称为DCI format 1_1/1_2 without DL assignment。对TCI状态的指示或更新实际上也包括了对终端设备所用波束的指示或更新。TCI状态包括联合TCI状态、下行TCI状态和上行TCI状态。联合TCI状态同时作用于下行波束(接收波束)和上行波束(发送波束)，换句话说，下行波束和上行波束使用的是同一个波束，但波束方向相反，即上下行波束之间存在互易性。下行TCI状态仅作用于下行波束。上行TCI状态仅作用于上行波束。上行波束也称为上行发送空间滤波器。对于Rel-17的unified TCI，一个TCI字段指示一个联合TCI状态，或者指示一个下行TCI状态，或者指示一个上行TCI状态，或者指示一个下行TCI状态和一个上行TCI状态。假设DCI指示了TCI state，在波束应用时间之后，该TCI state开始被应用。TCI state应用的信道或信号包括终端设备专用的(dedicated)信道或信号，以及一部分公共信道或信号。Rel-17定义了同时TCI更新列表。在载波聚合的N个小区中，N1(N1≤M)个小区属于一个同时TCI更新列表，N2(N2≤M)个小区属于另外一个同时TCI更新列表，以此类推。如果更新一个小区应用的TCI state，并且该小区属于一个同时TCI更新列表，那么该同时TCI更新列表中的其他小区所应用的TCI state也随之更新。换句话说，属于一个同时TCI更新列表中的小区的TCI state是同时更新的。
Rel-18将对基于层1/层2(L1/L2 based)的移动性(mobility)进行研究。对于基于层1/层2的移动性这一课题，其目标是减少切换中断(hand over interruption)所需的时间，从而更快地从服务小区切换到非服务小区。切换中断指的是从终端设备接收到小区切换命令到终端设备与切换后的小区第一次进行上行或下行通信的时间。相比于传统的基于层3信令的小区切换，基于层1/层2信令的小区切换能够进一步降低切换时延。为实现基于层1/层2的小区切换，终端设备需要对非服务小区进行测量和上报，网络设备需要为终端设备指示切换后使用的波束。对于Rel-17的ICBM，终端设备无需进行小区切换。对于Rel-18的基于层1/层2的移动性，终 端设备需要进行小区切换，切换到非服务小区(也称为目标小区)。由于这一主要不同之处，Rel-18中的测量、上报和波束指示可能需要不同的设计。
目前，3GPP对基于层1/层2的移动性的物理层(RAN1)相关的讨论尚未开始。
发明人发现：对于Rel-18中基于层1/层2(L1/L2 based)的移动性，终端设备需要切换到目标小区，并且使用目标小区的波束(TCI state)，目前如何实现小区切换和波束切换仍然是一个开放性的问题。
针对上述问题的至少之一，本申请实施例提供一种信息接收、信息发送方法以及装置。终端设备被配置一个或多个候选目标小区，每个候选目标小区关联一个时间间隔。终端设备被指示切换到某一候选目标小区，在该候选目标小区关联的时间间隔之后在目标小区应用与该候选目标小区关联的TCI state。由此，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
根据本申请实施例的一个方面，提供一种信息接收方法，应用于终端设备，其中，所述方法包括：
接收第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换，
发送反馈信息(HARQ-ACK)；
在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
根据本申请实施例的另一个方面，提供一种信息接收方法，应用于终端设备，其中，所述方法包括：
接收第三指示信息，其中，所述第三指示信息指示第四TCI state；
在针对所述第三指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，在服务小区应用指示的所述第四TCI state；
接收第四指示信息，其中，所述第四指示信息指示小区切换；
在参考符号后经过至少第五时间间隔之后，在切换后的小区应用指示的所述第四TCI state，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，针对所述第四指示信息发送的反馈信息(HARQ-ACK)的最后一个符号。
根据本申请实施例的另一个方面，提供一种信息发送方法，应用于网络设备，其中，所述方法包括：
发送第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换，
接收反馈信息(HARQ-ACK)；
其中，所述第一TCI state被用来在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
根据本申请实施例的另一个方面，提供一种信息发送方法，应用于网络设备，其中，所述方法包括：
发送第三指示信息，其中，所述第三指示信息指示第四TCI state；
接收针对所述第三指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第三指示信息的所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，终端设备在服务小区应用指示的所述第四TCI state；
发送第四指示信息，其中，所述第四指示信息指示小区切换；
其中，在参考符号后经过至少第五时间间隔之后，终端设备在切换后的小区应用指示的所述第四TCI state，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，针对所述第四指示信息的反馈信息(HARQ-ACK)的最后一个符号。
根据本申请实施例的另一个方面，提供一种信息接收装置，配置于终端设备，所述信息接收装置包括：
接收单元，其接收第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换，
发送单元，其发送反馈信息(HARQ-ACK)；
其中，在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
根据本申请实施例的另一个方面，一种信息接收装置，配置于终端设备，所述信息接收装置包括：
第二接收单元，其接收第三指示信息，其中，所述第三指示信息指示第四TCI state；
第二发送单元，其针对所述第三指示信息发送反馈信息(HARQ-ACK)，其中，在针对所述第三指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，在服务小区应用指示的所述第四TCI state；
所述第二接收单元还接收第四指示信息，其中，所述第四指示信息指示小区切 换；
在参考符号后经过至少第五时间间隔之后，在切换后的小区应用指示的所述第四TCI state，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，是所述第二发送单元针对所述第四指示信息发送的反馈信息(HARQ-ACK)的最后一个符号。
根据本申请实施例的另一个方面，提供一种信息发送装置，配置于网络设备，其中，所述装置包括：
第三发送单元，其发送第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换，
第三接收单元，其接收反馈信息(HARQ-ACK)；其中，所述第一TCI state被用来在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
根据本申请实施例的另一个方面，提供一种信息发送装置，应用于网络设备，其中，所述装置包括：
第四发送单元，其发送第三指示信息，其中，所述第三指示信息指示第四TCI state；
第四接收单元，其接收针对所述第三指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第三指示信息的所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，终端设备在服务小区应用指示的所述第四TCI state；
所述第四发送单元还发送第四指示信息，其中，所述第四指示信息指示小区切换；
其中，在参考符号后经过至少第五时间间隔之后，终端设备在切换后的小区应用指示的所述第四TCI state，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，针对所述第四指示信息的反馈信息(HARQ-ACK)的最后一个符号。
本申请实施例的有益效果之一在于：能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
参照后文的说明和附图，详细公开了本申请的特定实施方式，指明了本申请的原理可以被采用的方式。应该理解，本申请的实施方式在范围上并不因而受到限制。 在所附权利要求的精神和条款的范围内，本申请的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本申请实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
图1是本申请实施例的通信系统的示意图；
图2是本申请实施例的信令发送接收过程的一示意图；
图3是本申请实施例的信息接收方法的一示意图；
图4是本申请实施例的信令发送接收过程的另一示意图；
图5是本申请实施例TCI state与小区关联的一示意图；
图6是本申请实施例确定第一时间间隔的一示意图；
图7是本申请实施例确定第一时间间隔的另一示意图；
图8是本申请实施例配置第三时间间隔的一示例图；
图9是本申请实施例配置第三时间间隔的另一示例图；
图10是本申请实施例的信息接收方法的另一示意图；
图11是本申请实施例的信令发送接收过程的再一示意图；
图12是本申请实施例的信息接收方法的另一示意图；
图13是本申请实施例的信令发送接收过程的再一示意图；
图14是本申请实施例的信息发送方法的一示意图；
图15是本申请实施例的信息发送方法的另一示意图；
图16是本申请实施例的信息发送方法的再一示意图；
图17是本申请实施例的信息接收装置的一示意图；
图18是本申请实施例的信息接收装置的另一示意图；
图19是本申请实施例的信息发送装置的一示意图；
图20是本申请实施例的信息发送装置的另一示意图。
图21是本申请实施例的网络设备的构成示意图；
图22是本申请实施例的终端设备的示意图。
具体实施方式
参照附图，通过下面的说明书，本申请的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本申请的特定实施方式，其表明了其中可以采用本申请的原则的部分实施方式，应了解的是，本申请不限于所描述的实施方式，相反，本申请包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本申请实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本申请实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本申请实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femeto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本申请实施例中，术语“用户设备”(UE，User Equipment)或者“终端设备”(TE，Terminal Equipment或Terminal Device)例如是指通过网络设备接入通信网络并接收网络服务的设备。终端设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，终端设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，终端设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
此外，术语“网络侧”或“网络设备侧”是指网络的一侧，可以是某一基站，也可以包括如上的一个或多个网络设备。术语“用户侧”或“终端侧”或“终端设备侧”是指用户或终端的一侧，可以是某一UE，也可以包括如上的一个或多个终端设备。本文在没有特别指出的情况下，“设备”可以指网络设备，也可以指终端设备。
以下通过示例对本申请实施例的场景进行说明，但本申请不限于此。
图1是本申请实施例的通信系统的示意图，示意性说明了以终端设备和网络设备为例的情况，如图1所示，通信系统100可以包括第一网络设备101、第二网络设备102和终端设备103；为简单起见，图1仅以两个网络设备和一个终端设备为例进行说明，但本申请实施例不限于此。
例如，第一网络设备101为终端设备103的服务小区，第二网络设备102为终端设备103的非服务小区.
图2是本申请实施例的信令发送过程的一示意图。以图2为例对小区间波束管理(ICBM，Inter-Cell Beam Management)进行示意性说明。
终端设备接收指示TCI state的DCI，其中，TCI state关联了一个非服务小区(non-serving cell)(例如图1的第二网络设备102)。终端设备反馈ACK，在ACK的最后一个符号后至少一个时间间隔Y(Y个服务小区的符号，也可称为波束应用时间(BAT，Beam Application Time)之后，应用指示的TCI state。对于小区间波束管理，终端设备可以被指示使用非服务小区的波束，但终端设备不进行小区切换，只是在服务小区(例如图1的第一网络设备101)上使用非服务小区的波束。Y的具体取值由网络设备配置，使终端设备有足够的时间应用新指示的TCI state，即留出波束切换时间。
与小区间波束管理不同，对于Rel-18中基于层1/层2(L1/L2 based)的小区切换，终端设备不仅需要使用非服务小区的波束，而且需要切换到非服务小区。考虑到非服务小区可能与服务小区具有不同的中心频率和/或子载波间隔，除波束切换时间外，终端设备需要额外的时间进行小区切换。
如何使网络设备和终端设备在切换后的小区的波束应用时间上不发生歧义，即双方对于从何时开始可以在切换后的小区上应用TCI state有相同的理解是需要解决的问题。
针对上述问题的至少之一，本申请实施例提供一种信息接收、信息发送方法以及装置。
第一方面的实施例
本申请实施例提供一种信息接收方法，应用在终端设备侧。
图3是本申请实施例的信息接收方法的一示意图，如图3所示，该方法包括：
301，接收第一指示信息，其中，该第一指示信息指示第一TCI state和小区切换；
302，发送反馈信息(HARQ-ACK)，在该反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的该第一TCI state。
通过第一指示信息，终端设备被指示第一TCI state和小区切换，以及终端设备在反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。由此，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
值得注意的是，以上附图3仅对本申请实施例进行了示意性说明，以终端设备为例，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作，此外，还可以调整上述操作的对象。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图4的记载。
在一些实施方式中，术语例如，“TCI state”和“波束”可以互换使用。“小区(cell)”可以被等价替换为“载波(carrier)”；适用于后述“同时TCI更新列表”的方法也同样适用于“主小区组”或“辅小区组”，即将“同时TCI更新列表”替换为“主小区组”或“辅小区组”；上述仅为示例性说明，本申请实施例不限于此。
图4是本申请实施例的信令发送接收过程的另一示意图。如图4所述，指示TCI state和小区切换的信令第一指示信息(也可称为切换信令)可以是DCI和/或MAC CE。终端设备接收服务小区发送的切换信令，发送针对DCI和/或PDSCH的ACK。服务小区也可称为源小区(source cell)，其个数可以是一个或多个；ACK也可以被等价替换为HARQ-ACK。终端设备需要时间来切换小区和应用指示的TCI state，因此在ACK的最后一个符号后至少第一时间间隔(Z)之后，才能够在切换后的小区应用指示的TCI state。第一时间间隔(Z)的单位可以是符号，或者毫秒，或者时隙。
在一些实施方式中，接收第一配置信息，其中，该第一配置信息配置一个或者多个候选目标小区。
例如，在接收第一指示信息(切换信令)之前，终端设备被配置一个或多个候选目标小区，并且被提供与候选目标小区相关的配置信息。切换信令指示终端设备切换到其中一个或多个候选目标小区；配置信息指示终端设备在切换后使用候选目标小区时所需的必要信息，例如参考现有技术的小区切换过程中的相关信息，本申请对此不进行限制。
在一些实施方式中，第一指示信息在配置的该一个或者多个候选目标小区中指示一个候选目标小区作为主目标小区。
例如，第一指示信息至少对以下进行指示，包括：
指示在切换后的小区应用的TCI state；
指示终端设备进行小区切换；
指示一个主目标小区(target cell)，可选地，第一指示信息可以额外指示一个或多个候选目标小区。
例如，第一指示信息指示终端设备切换到一个或多个候选目标小区，其中，主目标小区是一个或多个候选目标小区中的一个。例如，第一指示信息可以指示终端设备切换到一个候选目标小区，该一个候选目标小区即为主目标小区(target cell)。例如，第一指示信息可以指示终端设备切换到多个候选目标小区，例如多个载波聚合的小区，这些小区属于同一个主小区组(MCG，Master Cell Group)或同一个辅小区组(SCG，Secondary Cell Group)，如果第一指示信息指示多个候选目标小区，其将一个候选目标小区指示为主候选目标小区。例如，将一个候选目标小区指示为主小区(Pcell，Primary cell)，并且将其他候选目标小区指示为辅小区(Scell，Secondary cell)，或者，将一个候选目标小区指示为主辅小区(PScell，Primary Secondary cell)，并且将其他候选目标小区指示为辅小区，指示的Pcell或PScell即为主目标小区。
在一些实施方式中，指示的第一TCI state与一个小区关联，该小区是主目标小区，或者，是除该主目标小区以外的小区。
例如，指示的第一TCI state与一个小区关联，该小区是主目标小区。
图5是本申请实施例TCI state与小区关联的一示意图。
如图5所示，例如，第一指示信息(切换信令)指示了一个TCI state，该一个TCI state关联了一个小区ID(cell ID)，这个小区即为主目标小区。终端设备被配 置N个候选目标小区，被提供每个候选目标小区的小区ID。由此，基于小区ID即可确定切换信令指示的主目标小区是哪一个候选目标小区。对小区ID的具体形式不做限制，例如，可以是物理小区ID(PCI，Physical Cell ID)；TCI state关联的小区可以是非服务小区，本申请对此并不进行限制。
例如，指示的第一TCI state与一个小区关联，该小区是除该主目标小区以外的小区。
例如，第一指示信息(切换信令)(DCI或MAC CE)指示了一个第一小区，作为主目标小区，并且指示了一个TCI state，其中，TCI state关联了一个第二小区，第二小区可以与第一小区不同。终端设备可以在第一小区上使用第二小区的波束，由此，使波束选择更加灵活，使终端设备总能使用最好的波束；TCI state关联的小区可以是非服务小区，本申请对此并不进行限制。
在一些实施方式中，切换后的小区包括：主目标小区；或者，主目标小区和除该主目标小区以外的一个或多个候选目标小区，其中，该主目标小区和除该主目标小区以外的一个或多个候选目标小区属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)。
例如，“切换后的小区”与“切换信令指示的小区”不一定相同；“切换后的小区”特指应用指示的TCI state的切换后的小区，即应用指示的波束的切换后的小区。“切换信令指示的小区”泛指切换后的小区，但这些小区不一定都应用指示的TCI state。例如，切换信令指示了属于同一个主小区组的一个主目标小区和N1个候选目标小区，但应用指示的TCI state的小区仅包括属于同一个同时TCI更新列表的主目标小区和N2个候选目标小区，其中N2<N1，在这种情况下，“切换后的小区”是“切换信令指示的小区”的一个子集。又例如，切换信令仅指示了一个主目标小区，但应用指示的TCI state的小区包括属于同一个同时TCI更新列表的主目标小区和N2个候选目标小区，在这种情况下，“切换信令指示的小区”是“切换后的小区”的一个子集。
例如，切换信令指示一个或多个候选目标小区，其中之一作为主目标小区。终端设备接收到切换信令后，将切换到一个或多个候选目标小区，并应用相关的配置信息。
在一些实施方式中，指示的TCI state仅应用于主目标小区。
例如，主目标小区是一个非载波聚合(CA，Carrier Aggregation)的小区。
例如，主目标小区不属于任何一个同时TCI更新列表。
例如，尽管主目标小区和其他M1个候选目标小区属于一个同时TCI更新列表，但仍然仅在主目标小区上应用指示的TCI state。这是由于为了在多个小区同时应用波束，第一时间间隔(Z)需要根据多个小区中最大的时间间隔确定。为了更快地在小区切换中应用波束，可以仅在主目标小区上应用波束，从而不受其他需要更大时间间隔的小区影响，能够通过主目标小区更快地完成切换。
例如，如果终端设备在切换中断(hand over interruption)时间之内应用一个指示的TCI state，则终端设备仅在主目标小区上应用指示的TCI state，即不使用同时TCI更新列表。这里的TCI state不限于是切换信令指示的TCI state，也可以是其他仅指示波束的信令指示的TCI state。反之，如果终端设备在切换中断时间之外应用一个指示的TCI state，则终端设备使用同时TCI更新列表，即重用Rel-17 ICBM。
在一些实施方式中，指示的TCI state应用于主目标小区和一个或多个候选目标小区。
例如，在载波聚合情况下，主目标小区可能聚合了其他候选目标小区。终端设备切换到主目标小区，也切换到其聚合的其他候选目标小区。配置信息可以指示哪些候选目标小区属于同一个主小区组或辅小区组。例如，指示的TCI state应用于属于同一个主小区组或辅小区组的所有小区。因此，切换后的小区可以包括一个指示的主目标小区，并且包括与主目标小区属于同一个主小区组或辅小区组的其他一个或多个候选目标小区。配置信息可以指示一个主小区组或辅小区组中的哪些候选目标小区属于同一个同时TCI更新列表。例如，指示的TCI state应用于属于同一个同时TCI更新列表的所有小区。因此，切换后的小区可以包括一个指示的主目标小区，并且包括与主目标小区属于同一个同时TCI更新列表的其他一个或多个候选目标小区。
在一些实施方式中，指示的所述第一TCI state与所述终端设备在被指示所述第一TCI state之前被指示的第三TCI state不同。
例如，在指示的第一TCI state与终端设备之前被指示的第三TCI state不同的条件下，终端设备基于上述的方法在切换后的小区应用指示的第一TCI state；之前 被指示的第三TCI state由仅指示TCI state的信令指示，或者，由同时指示TCI state和小区切换的信令指示。
在一些实施方式中，在接收所述第一指示信息之后接收第二指示信息，其中，所述第二指示信息指示第二TCI state；在应用指示的所述第一TCI state的第一小区集合是应用指示的所述第二TCI state的第二小区集合的子集的情况下，在所述第二小区集合上应用指示的所述第二TCI state；其中，所述第二TCI state与所述第一TCI state相同。
例如，终端设备接收切换信令，虽然指示的主目标小区属于一个同时TCI更新列表，但由于第一TCI state由切换信令指示，终端设备仅在主目标小区上应用指示的第一TCI state，而并非在同时TCI更新列表包括的所有小区上应用第一TCI state。因此，应用第一TCI state的第一小区集合仅包括同时TCI更新列表中的主目标小区。之后，终端设备又接收到一个指示TCI state的信令，其为该同时TCI更新列表指示了一个第二TCI state；由于第二TCI state并非由切换信令指示，终端设备在同时TCI更新列表包括的所有小区上应用第二TCI state。因此，应用第二TCI state的第二小区集合包括同时TCI更新列表中的所有小区，并且应用第一TCI state的第一小区集合是应用第二TCI state的第二小区集合的子集。尽管第二TCI state与第一TCI state相同，终端设备也需要进行上述应用TCI state的操作，即在与第一小区集合不同的第二小区集合上应用TCI state。
在一些实施方式中，其中，第一TCI state应用于主目标小区的以下至少一种信道或信号：SSB；PRACH；类型1物理下行控制信道公共搜索空间集合Type1-PDCCH CSS set；与Type1-PDCCH CSS set关联的CORESET；类型2物理下行控制信道公共搜索空间集合Type2-PDCCH CSS set；与Type2-PDCCH CSS set关联的CORESET；或者，被随机接入响应上行授权RAR(Random Access Response)UL grant调度的PUSCH。
例如，指示的TCI state应用于主目标小区，即终端设备在主目标小区使用指示的波束。更具体地，指示的TCI state应用于主目标小区的以下至少一种信道或信号，包括：
SSB；例如，终端设备可以使用指示的波束接收SSB，从而获得与主目标小区的下行同步；
PRACH；例如，终端设备可以使用指示的波束发送PRACH preamble(Msg1)，从而通过随机接入过程(random access procedure)获得与主目标小区的上行同步；
Type1-PDCCH CSS set；例如，终端设备在Type1-PDCCH CSS set内使用指示的波束接收CRC被RA-RNTI或TC-RNTI加扰的PDCCH，即调度Msg2或Msg4的PDCCH；
与Type1-PDCCH CSS set关联的CORESET；例如，终端设备在与Type1-PDCCH CSS set关联的CORESET内使用指示的波束接收CRC被RA-RNTI或TC-RNTI加扰的PDCCH。
Type2-PDCCH CSS set；例如，终端设备在Type2-PDCCH CSS set内使用指示的波束接收CRC被P-RNTI加扰的PDCCH，即调度寻呼(paging)消息的PDCCH。
与Type2-PDCCH CSS set关联的CORESET；例如，终端设备在与Type2-PDCCH CSS set关联的CORESET内使用指示的波束接收CRC被P-RNTI加扰的PDCCH。
被RAR UL grant调度的PUSCH；例如，终端设备使用指示的波束发送被RAR UL grant调度的PUSCH，即Msg3。
在一些实施方式中，配置的一个或者多个候选目标小区中的每个候选目标小区关联一个第一时间间隔，经过至少第一时间间隔包括经过主目标小区关联的第一时间间隔。
例如，根据第一指示信息确定了主目标小区后，能够得到该主目标小区对应的第一时间间隔(Z)，在反馈信息(HARQ-ACK)的最后一个符号后经过至少该主目标小区对应的第一时间间隔(Z)之后，在切换后的小区应用指示的第一TCI state。
图6是本申请实施例确定第一时间间隔的一示意图。
例如，如图6所述，终端设备被配置N个候选目标小区，候选目标小区n关联或对应一个第一时间间隔Zn，n＝1,2,…,N。假设切换信令指示了某一个候选目标小区作为主目标小区，则主目标小区所关联的时间间隔(Z N)被认为是第一时间间隔Z。
图7是本申请实施例确定第一时间间隔的另一示意图。
例如，如图7所示，N个候选目标小区包括属于一个同时TCI更新列表的候选目标小区，和/或，不属于任何一个同时TCI更新列表的候选目标小区。图7中的[3]中的候选目标小区属于同一个同时TCI更新列表，每个候选目标小区关联一个时间 间隔。同理，图7中的[4]中每个候选目标小区关联一个时间间隔。图7中的[1]、[2]和[5]中的候选目标小区不属于任何一个同时TCI更新列表，如前所述，其分别关联一个时间间隔。不失一般性，前面所述的“同时TCI更新列表”也可以被等价替换为“主小区组”或“辅小区组”。假设切换信令指示了某一个候选目标小区作为主目标小区，则主目标小区所关联的时间间隔(Z QN)被认为是第一时间间隔Z。
在一些实施方式中，属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区关联的所述第一时间间隔相同。
如图7所示，N个候选目标小区包括属于一个同时TCI更新列表的候选目标小区，和/或，不属于任何一个同时TCI更新列表的候选目标小区。图7中的[3]中的候选目标小区属于同一个同时TCI更新列表，虽然每个候选目标小区关联一个时间间隔，但这些时间间隔相同，即Z P1＝Z P2＝…＝Z PN。同理，图7中的[4]中的候选目标小区关联的时间间隔满足Z Q1＝Z Q2＝…＝Z QN。相同的时间间隔能够使载波聚合的多个小区同时应用某一TCI state，例如，同时使用某一模拟接收或发送波束，这有利于简化终端设备实现。反之，如果终端设备需要同时形成不同的模拟波束，终端设备可能无法实现，或者需要很高的实现复杂度。图7中的[1]、[2]和[5]中的候选目标小区不属于任何一个同时TCI更新列表，如前所述，其分别关联一个时间间隔。
在一些实施方式中，配置的所述一个或者多个候选目标小区中的每个候选目标小区关联一个第一时间间隔，所述经过至少第一时间间隔包括经过属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的主目标小区和候选目标小区关联的第一时间间隔中最大的时间间隔。
例如，终端设备在切换后的小区应用指示的TCI state。切换后的小区包括一个主目标小区和一个或多个候选目标小区，其中，主目标小区和候选目标小区属于同一个同时TCI更新列表，和/或，同一个主小区组，和/或，同一个辅小区组。终端设备使用第一时间间隔Z，其中，第一时间间隔Z是属于同一个同时TCI更新列表，和/或，同一个主小区组，和/或，同一个辅小区组的主目标小区和候选目标小区关联的时间间隔中最大的时间间隔。通过这种方法，无论各个候选目标小区关联的时 间间隔是否相同，终端设备都可以在上述一组主目标小区和候选目标小区上，在同一时间开始使用指示的TCI state。
在一些实施方式中，候选目标小区关联的所述第一时间间隔是一个或多个符号，其中，所述一个或多个符号根据第一参考小区确定，所述第一参考小区包括以下之一：所述第一时间间隔关联的所述候选目标小区；与所述第一时间间隔关联的所述候选目标小区属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区中子载波间隔最小的候选目标小区；配置的所述一个或者多个候选目标小区中子载波间隔最小的候选目标小区；或者，服务小区中子载波间隔最小的服务小区。
例如，终端设备被配置N个候选目标小区，候选目标小区n关联Z n个符号，n＝1,2,…,N。如果候选目标小区n不属于任何一个同时TCI更新列表，则Z n个符号基于候选目标小区n确定，换句话说，Z n个符号指的是候选目标小区n的Z n个符号，或者，Z n个符号基于候选目标小区n的子载波间隔确定。将属于一个同时TCI更新列表的候选目标小区中子载波间隔最小的候选目标小区记为候选目标小区m，如果候选目标小区n也属于该同时TCI更新列表，则Z n个符号基于候选目标小区m确定，换句话说，Z n个符号指的是候选目标小区m的Z n个符号，或者，Z n个符号基于候选目标小区m的子载波间隔确定。
又例如，无论候选目标小区n是否属于一个同时TCI更新列表，Z n个符号均基于候选目标小区n确定。换句话说，在候选目标小区n属于一个同时TCI更新列表的情况下，Z n个符号基于候选目标小区n确定，而不是基于属于一个同时TCI更新列表的候选目标小区中子载波间隔最小的候选目标小区确定。由此，可以更快地在一个主目标小区应用指示的TCI state，从而快速实现到某一个主目标小区的切换。到与主目标小区属于一个同时TCI更新列表的其他候选目标小区的切换可以在之后继续完成。
又例如，终端设备被配置N个候选目标小区，候选目标小区n关联Z n个符号，n＝1,2,…,N。Z n个符号基于N个候选目标小区中子载波间隔最小的候选目标小区确定，或者，基于服务小区中子载波间隔最小的服务小区确定。
在一些实施方式中，第一时间间隔Z是一个或多个符号，其中，符号基于参考 小区确定，参考小区是以下之一：主目标小区；切换后的小区中子载波间隔最小的小区；所有候选目标小区中子载波间隔最小的候选目标小区；或者，所有服务小区中子载波间隔最小的服务小区。
例如，第一时间间隔Z是切换信令指示的主目标小区所关联的时间间隔。由于切换后的小区可能仅包括一个主目标小区，并且一个候选目标小区关联的时间间隔的符号可以基于该候选目标小区确定，因此，满足以下结论：第一时间间隔Z的符号基于主目标小区确定。由于切换后的小区可能包括属于同一个同时TCI更新列表的主目标小区以及其他候选目标小区，并且一个候选目标小区关联的时间间隔的符号可以基于属于同一个同时TCI更新列表的多个候选目标小区中子载波间隔最小的候选目标小区确定，因此，也满足以下结论：第一时间间隔Z的符号基于切换后的小区中子载波间隔最小的小区确定。切换后的小区可以被等价替换为应用指示的TCI state的小区。其他确定参考小区的方式与前面所述的为候选目标小区关联的时间间隔确定参考小区的情况类似，不再赘述。
在一些实施方式中，在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔(Z)之后的第一个时隙开始，在切换后的小区应用指示的所述第一TCI state，其中，所述第一个时隙根据第二参考小区确定，所述第二参考小区包括以下之一：所述主目标小区；所述切换后的小区中子载波间隔最小的小区。
例如，如图4所示，终端设备在ACK的最后一个符号后至少第一时间间隔Z之后，在切换后的小区应用指示的TCI state。更进一步，终端设备从Z之后的第一个时隙开始应用指示的TCI state；第一个时隙根据第二参考小区确定。
例如，如图2所示，终端设备在ACK的最后一个符号后至少一个时间间隔Y之后，在切换后的小区应用指示的TCI state，即重用Rel-17 ICBM中的时间间隔Y。更进一步，终端设备从Y之后的第一个时隙开始应用指示的TCI state。第一个时隙根据第二参考小区确定。
例如，终端设备在多个载波聚合的小区上应用指示的TCI state，第一个时隙基于其中子载波间隔最小的小区确定，换句话说，时隙指的是其中子载波间隔最小的小区的时隙，或者，时隙基于其中子载波间隔最小的小区的子载波间隔确定。这能够使载波聚合的多个小区同时应用某一TCI state，例如，同时使用某一模拟接收或发送波束，这有利于简化终端设备实现。反之，如果终端设备需要同时形成不同的 模拟波束，终端设备可能无法实现，或者需要很高的实现复杂度。
例如，终端设备仅在主目标小区上应用指示的TCI state，第一个时隙基于主目标小区确定，即第一个时隙是主目标小区的第一个时隙。
例如，终端设备在多个载波聚合的小区上应用指示的TCI state，第一个时隙基于主目标小区确定。
在一些实施方式中，接收第二配置信息，其中，所述第二配置信息为配置的所述一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔；或者所述第二配置信息为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置同一个第三时间间隔；或者所述第二配置信息为配置的所述一个或者多个候选目标小区配置一个第三时间间隔。
在一些实施方式中，一个候选目标小区关联的第一时间间隔等于为所述候选目标小区配置的第三时间间隔。
在一些实施方式中，在第二配置信息为配置的所述一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔的情况下：为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置的所述第三时间间隔相同。
以下分别举例说明：
例如，候选目标小区关联的时间间隔是网络设备通过RRC信令配置的，网络设备为候选目标小区配置一个第三时间间隔(也可称为配置的“第一时间间隔Z”)。发明中的“配置”也可以被等价替换为“指示”或“激活”，本发明实施例对于如何配置、指示或激活不做限制，例如，通过RRC信令配置，通过DCI信令指示，通过MAC CE指示或激活。
例如，网络设备为配置的一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔。例如，图6中的Z1-Zn分别对应一个第三时间间隔。
例如，网络设备为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小 区组(SCG，Secondary Cell Group)的候选目标小区配置同一个第三时间间隔。图8是本申请实施例配置第三时间间隔的一示例图。例如，网络设备为属于同一个同时TCI更新列表的多个候选目标小区配置一个时间间隔，而不是为其中每一个候选目标小区配置一个时间间隔。对于其中的每一个候选目标小区，其关联的时间间隔均为配置的时间间隔，例如Zp为配置的一个上述第三时间间隔。
此外，在网络设备为配置的一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔的情况下：为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置的第三时间间隔相同。例如，仍然参考图7示例，在此不做重复说明。
例如，网络设备为配置的一个或者多个候选目标小区配置一个第三时间间隔。图9是本申请实施例配置第三时间间隔的另一示例图。例如，图9中的Z。
在一些实施方式中，第三时间间隔是一个或多个符号，其中，该一个或多个符号根据所述第一参考小区确定。
例如，可以参考上述第一时间间隔的确定方法，在此不做重复说明。
在一些实施方式中，为配置的所述一个或者多个候选目标小区中的每个候选目标小区上报一个第二时间间隔；或者，为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区上报同一个第二时间间隔；或者，为配置的所述一个或者多个候选目标小区上报一个第二时间间隔。
在一些实施方式中，一个候选目标小区关联的第一时间间隔等于为该候选目标小区上报的所述第二时间间隔。
在一些实施方式中，在为配置的所述一个或者多个候选目标小区中的每个候选目标小区上报一个第二时间间隔的情况下，为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区上报的所述第二时间间隔相同。
例如，终端设备为每个候选目标小区确定图4中的时间间隔Z，将每个候选目 标小区能够支持的最小时间间隔(第二时间间隔Z)作为设备能力上报给网络设备。
例如，网络设备基于终端设备的上报为每个候选目标小区确定一个时间间隔(第一时间间隔Z)，并通过RRC信令配置给终端设备。终端设备最终使用的时间间隔仍然是网络设备配置的时间间隔。
以下分别举例说明：
例如，候选目标小区关联的时间间隔是终端设备侧上报一个第二时间间隔(也可称为上报的“第一时间间隔Z”)。例如，终端设备将每个候选目标小区能够支持的最小时间间隔(第二时间间隔)作为设备能力上报给网络设备。网络设备直接使用该时间间隔，即不再配置第三时间间隔给终端设备。在这种情况下，候选目标小区关联的时间间隔是上报的第二时间间隔，即终端设备最终使用的时间间隔是自己上报的时间间隔。
例如，首先，终端设备被配置一个或多个候选目标小区，然后，为每个候选目标小区上报第二时间间隔，然后，网络设备为每个候选目标小区配置第三时间间隔，每个候选目标小区关联的第一时间间隔Z即为第三时间间隔，最后，接收切换信令。在主目标小区关联的第一时间间隔Z之后，在切换后的小区上应用指示的波束。在小区切换完成之后，终端设备可以为每个服务小区上报第二时间间隔Y，然后，被配置每个服务小区关联的第三时间间隔Y，在接收到波束指示信令后，在第三时间间隔Y之后应用指示的波束，即在小区切换完成之后使用Rel-17的ICBM。
例如，终端设备为配置的一个或者多个候选目标小区中的每个候选目标小区上报一个第二时间间隔。例如，仍然借助图6中的Z 1-Zn，其为终端设备上报的第二时间间隔。
例如，终端设备为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区上报同一个第三时间间隔。例如，仍然借助图8，终端设备为属于同一个同时TCI更新列表的多个候选目标小区上报一个时间间隔，而不是为其中每一个候选目标小区上报一个时间间隔。对于其中的每一个候选目标小区，其关联的时间间隔均为上报的时间间隔，例如Zp为上报的一个上述第二时间间隔。
此外，在终端设备为配置的一个或者多个候选目标小区中的每个候选目标小区 上报一个第二时间间隔的情况下：为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区上报的第三时间间隔相同。例如，仍然可以参考图7示例，在此不做重复说明。
例如，终端设备为配置的一个或者多个候选目标小区上报一个第三时间间隔。例如，终端设备不区分候选目标小区，仅上报一个第二时间间隔Z，例如，仍然可以借助图9，终端设备仅上报一个第二时间间隔Z。
在一些实施方式中，网络设备直接使用终端设备上报的第二时间间隔，即不再配置第三时间间隔给终端设备；可选的，网络设备还可以基于终端设备上报的第二时间间隔，使用前面所述的任何一种方法配置第三时间间隔。
例如，网络设备和终端设备直接使用第二时间间隔作为一个候选目标小区关联的第一时间间隔；或者，网络设备基于终端设备的上报为终端设备配置第三时间间隔，终端设备最终使用的一个候选目标小区关联的第一时间间隔仍然是网络设备配置的时间间隔。
在一些实施方式中，第二时间间隔是一个或多个符号，其中，所述一个或多个符号根据所述第一参考小区确定。
例如，可以参考上述第一时间间隔的确定方法，在此不做重复说明。
在一些实施方式中，所述方法还包括：接收第三配置信息，其中，第三配置信息配置小区间波束管理模式或者小区切换模式。
例如，假设终端设备接收到DCI指示的TCI state，并且TCI state关联了一个非服务小区。如果被配置为小区间波束管理模式，终端设备不进行小区切换，进行波束切换，从而可以使用非服务小区的波束。如果被配置为小区切换模式，终端设备切换到与TCI state关联的非服务小区，并进行波束切换以使用非服务小区的波束。该非服务小区是配置的候选目标小区之一，由此，终端设备在切换后能够快速应用该非服务小区的配置。如果终端设备被配置为小区切换模式，指示非服务小区TCI state的DCI即为指示TCI state和小区切换的信令。
在一些实施方式中，第一指示信息为第一DCI和/或第一MAC CE。
在一些实施方式中，该第一DCI是没有下行分配的DCI，该第一DCI的CRC使用CS-RNTI加扰，或者，该第一DCI是有下行分配的DCI，该第一DCI的CRC 使用C-RNTI加扰。
在一些实施方式中，第一指示信息为第一DCI和第一MAC CE，其中，该第一DCI是有下行分配的DCI，该第一DCI的CRC使用C-RNTI加扰，该第一DCI指示所述第一TCI state，该第一MAC CE指示小区切换。
在一些实施方式中，第一指示信息还指示CS-RNTI，其中，所述CS-RNTI对用于更新TCI state的第二DCI的CRC进行加扰。
例如，指示非服务小区TCI state的第一DCI是调度了PDSCH的DCI，或者称为有下行分配的DCI(DCI with DL assignment)，该第一DCI的CRC使用C-RNTI加扰，第一DCI的一个或多个字段，或者第一MAC CE的一个或多个字段可以指示终端设备需要进行小区切换。上述DCI和/或MAC CE即为指示第一TCI state和小区切换的信令(第一指示信息)。MAC CE由DCI调度的PDSCH承载。
例如，指示非服务小区TCI state的DCI是没有调度PDSCH的DCI，或者称为没有下行分配的DCI(DCI without DL assignment)，DCI的CRC使用CS-RNTI加扰，DCI的一个或多个字段可以指示终端设备需要进行小区切换。上述DCI即为指示TCI state和小区切换的信令(第一指示信息)。MAC CE由DCI调度的PDSCH承载。
在一些实施方式中，指示TCI state和小区切换的信令还指示CS-RNTI。
例如，第一指示信息除指示切换后使用的目标小区和TCI state之外，还指示CS-RNTI。没有下行分配的DCI可以在没有数据调度的情况下指示TCI state，即仅指示波束而不调度数据，从而可以更加快速灵活地对TCI state进行更新，即不需要等到有数据调度时才能对波束进行指示。上述DCI的CRC使用CS-RNTI加扰。然而，在小区切换后，原来服务小区的CS-RNTI已经失效。为了能够在小区切换后快速使用CRC被CS-RNTI加扰的DCI对波束进行指示，可以在指示TCI state和小区切换的信令中指示CS-RNTI。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知，终端设备被配置一个或多个候选目标小区，每个候选目标小区关联一个时间间隔。终端设备被指示切换到某一候选目标小区，在该候选目标 小区关联的时间间隔之后在目标小区应用与该候选目标小区关联的TCI state。通过发明方法，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
第二方面的实施例
本申请实施例提供一种信息接收方法，应用于终端设备侧。本申请实施例可以与第一方面的实施例结合起来，也可以单独实施。与第一方面的实施例相同的内容不再赘述。
图10是本申请实施例的信息接收方法的另一示意图，如图10所示，该方法包括：
1001，接收第三指示信息，其中，该第三指示信息指示第四TCI state；
1002，在针对该第三指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，在服务小区应用指示的该第四TCI state；
1003，接收第四指示信息，其中，该第四指示信息指示小区切换；
1004，在参考符号后经过至少第五时间间隔之后，在切换后的小区应用指示的该第四TCI state，其中，该参考符号是所述第四指示信息的最后一个符号，或者，针对所述第四指示信息发送的反馈信息(HARQ-ACK)的最后一个符号。
由此，通过第三指示信息以及第四指示信息，终端设备能够在切换后的小区应用指示的第四TCI state。由此，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
图11是本申请实施例的信令发送接收过程的再一示意图
如图11所示，终端设备先进行波束切换，后进行小区切换，分两步实现在切换后的小区应用指示的TCI state。
例如，终端设备接收指示TCI state的第三信令，该信令仅指示波束切换，而不指示小区切换，即指示第四TCI state，例如，该信令可以沿用小区间波束管理中的TCI state指示信令，指示终端设备使用非服务小区的波束，但并不切换小区，因此终端设备在针对该第三指示信息的ACK的最后一个符号后经过至少第四时间间隔(Y)之后，在服务小区应用指示的第四TCI state，更多细节可以参见小区间波束管理现有技术，不再赘述。至此，终端设备完成了到非服务小区的波束切换。在之 后的某一时刻，终端设备接收到指示小区切换的第四指示信息，该指示信息仅指示小区切换。换句话说，该信令没有指示TCI state，或者没有指示一个更新的TCI state。终端设备需要进行小区切换，从而能够在非服务小区应用指示的TCI state。终端设备在第四指示信息的最后一个符号后至少第五时间间隔(X)之后，在切换后的小区应用指示的第四TCI state，或者，终端设备在针对第四指示信息发送的ACK的最后一个符号后至少第五时间间隔(X)之后，在切换后的小区应用指示的第四TCI state。
网络设备可以使用前面所述的任何一种配置“第三时间间隔”的方法配置时间间隔X。终端设备可以使用前面所述的任何一种上报“第二时间间隔”的方法上报时间间隔X。
在一些实施方式中，第二方面的实施例可以与第一方面的实施例结合起来，以下进行说明。
图12是本申请实施例的信息接收方法的另一示意图，如图12所示，该方法包括：
1201，接收第五指示信息，其中，该第五指示信息指示第五TCI state和小区切换；
1202，在针对该第五指示信息的反馈信息(HARQ-ACK)的最后一个符号后经过至少第六时间间隔之后，在切换后的小区应用指示的该第五TCI state；
1203，接收第六指示信息，其中，该第六指示信息指示第六TCI state；
1204，在针对该第六指示信息的反馈信息(HARQ-ACK)的最后一个符号后经过至少第七时间间隔之后，在服务小区应用指示的该第六TCI state；
1205，接收第七指示信息，其中，该第七指示信息指示小区切换；
1206，在参考符号后经过至少第八时间间隔之后，在切换后的小区应用指示的该第六TCI state，其中，该参考符号是该第七指示信息的最后一个符号，或者，针对该第七指示信息的反馈信息(HARQ-ACK)的最后一个符号。
例如，图12所示的方法是对于图11与图4的场景共存的情况。
例如，该第五TCI state与第一方面的实施例的第一TCI state相同；该第六TCI state与第二方面的实施例的第四TCI state相同；第六时间间隔(Z)与第一方面的实施例的第一时间间隔(Z)相同；该第七时间间隔(Y)与第二方面的实施例的第 四时间间隔(Y)相同；该第八时间间隔(X)与第二方面的实施例的第五时间间隔(X)相同。
图13是本申请实施例的信令发送接收过程的再一示意图。
如图13所示，在通过第六指示信息指示的第六TCI state之后，网络设备将通过第七指示信息或者第五指示信息指示终端设备切换到主目标小区。如果网络设备发现有更合适的波束(对应第五TCI state)能够在主目标小区应用，即主目标小区的波束已经发生了变化，有必要改变波束，如图13的上图所示，则可以在第五指示信息指示中既指示第五TCI state又指示小区切换；即在图11基础上应用图4的TCI state指示和小区切换指示，从而可以更快地切换到合适的波束；在这种情况下，相当于由图11场景切换到了图4场景，终端设备基于图4及其相关的方法在主目标小区应用第五TCI state；如果网络设备发现没有必要改变波束，如图13的下图所示，则通过第七指示信息仅指示小区切换，仍然应用第六指示信息指示的第六TCI state。
在一些实施方式中，终端设备还上报第九时间间隔和第十时间间隔；接收第四配置信息，所述第四配置信息配置第十一时间间隔、第十二时间间隔和第十三时间间隔。
例如，该第九时间间隔和第十时间间隔与第一方面的实施例的“第二时间间隔”相似，以及第十一时间间隔、第十二时间间隔和第十三时间间隔与第一方面的实施例的“第三时间间隔”相似。
例如，该第九时间间隔与“第七时间间隔”(Y)对应，第十时间间隔与“第八时间间隔”(X)；以及第十一时间间隔与“第八时间间隔”(X)、第十二时间间隔与“第七时间间隔”(Y)对应和第十三时间间隔与“第六时间间隔”(Z)对应。
例如，终端设备沿用小区间波束管理的现有技术上报“第九时间间隔Y”，将第一方面的实施例的“第二时间间隔Z”替换为“第十时间间隔X”，终端设备可以使用前面所述的任何一种上报“第二时间间隔Z”的方法上报“第十时间间隔X”。基于终端设备的上报，网络设备确定“第十二时间间隔Y”、“第十一时间间隔X”和“第十三时间间隔Z”，并通过RRC信令配置给终端设备。网络设备可以使用前面所述的任何一种配置“第三时间间隔Z”的方法配置“第十一时间间隔X”和“第十三时间间隔Z”。
对于之前的实施例，终端设备上报第二时间间隔Z，网络设备基于该上报确定和配置第三时间间隔Z。不同于之前的实施例，这里终端设备没有上报第二时间间隔Z，但是网络设备可以基于上报的“第十时间间隔X”和“第九时间间隔Y”确定和配置“第十三时间间隔Z”。这是由于“第十三时间间隔Z”包括波束切换时间和小区切换时间，“第十时间间隔X”包括小区切换时间，“第九时间间隔Y”包括波束切换时间，网络设备基于X和Y可以大致推断出Z。不失一般性，终端设备也可以上报“第九时间间隔Y”和“第二时间间隔Z”，网络设备基于上报确定和配置“第十一时间间隔X”。
此外，网络设备配置“第十一时间间隔X”、“第十二时间间隔Y”和“第十三时间间隔Z”，与第一方面的实施例的配置“第三时间间隔Z”相似。
值得注意的是，以上附图10-附图13仅对本申请实施例进行了示意性说明，以终端设备为例，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作，此外，还可以调整上述操作的对象。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图10-附图12的记载。
值得注意的是，以上附图10-附图13仅对本申请实施例进行了示意性说明，以终端设备为例，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作，此外，还可以调整上述操作的对象。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图10-附图12的记载。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知，通过第三指示信息以及第四指示信息，终端设备能够在切换后的小区应用指示的第四TCI state。由此，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
第三方面的实施例
本申请实施例提供一种信息发送方法，应用于网络设备侧。本申请实施例可以与第一方面的实施例结合起来，也可以单独实施。与第一方面的实施例相同的内容不再赘述。
图14是本申请实施例的信息发送方法的一示意图，如图14所示，该方法包括：
1401，发送第一指示信息，其中，该第一指示信息指示第一TCI state和小区切换；
1402，接收反馈信息(HARQ-ACK)；其中，该第一TCI state被用来在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
在一些实施方式中，该方法还包括：发送第一配置信息，其中，所述第一配置信息配置一个或者多个候选目标小区。
在一些实施方式中，该方法还包括：发送第二配置信息，其中，所述第二配置信息为所述第一配置信息配置的所述一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔，一个候选目标小区关联的第一时间间隔等于配置的第三时间间隔；或者，所述第二配置信息为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置同一个第三时间间隔；或者，所述第二配置信息为配置的所述一个或者多个候选目标小区配置一个第三时间间隔。
在一些实施方式中，该方法还包括：发送第三配置信息，其中，所述第三配置信息配置小区间波束管理模式或者小区切换模式。
值得注意的是，以上附图14仅对本申请实施例进行了示意性说明，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图14的记载。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知，终端设备被配置一个或多个候选目标小区，每个候选目标 小区关联一个时间间隔。终端设备被指示切换到某一候选目标小区，在该候选目标小区关联的时间间隔之后在目标小区应用与该候选目标小区关联的TCI state。通过发明方法，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
第四方面的实施例
本申请实施例提供一种信息发送方法，应用于网络设备侧。本申请实施例可以与第二方面的实施例结合起来，也可以单独实施。与第二方面的实施例相同的内容不再赘述。
图15是本申请实施例的信息发送方法的另一示意图，如图15所示，该方法包括：
1501，发送第三指示信息，其中，该第三指示信息指示第四TCI state；
1502，接收针对该第三指示信息的反馈信息(HARQ-ACK)，其中，在针对该第三指示信息的所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，终端设备在服务小区应用指示的所述第四TCI state；
1503，发送第四指示信息，其中，该第四指示信息指示小区切换；
1504，在参考符号后经过至少第五时间间隔之后，终端设备在切换后的小区应用指示的所述第四TCI state，其中，该参考符号是该第四指示信息的最后一个符号，或者，针对该第四指示信息的反馈信息(HARQ-ACK)的最后一个符号。
由此，通过第三指示信息以及第四指示信息，终端设备能够在切换后的小区应用指示的第四TCI state。由此，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
图16是本申请实施例的信息发送方法的再一示意图，如图16所示，该方法包括：
1601，发送第五指示信息，其中，该第五指示信息指示第五TCI state和小区切换，
1602，接收针对该第五指示信息的反馈信息(HARQ-ACK)，其中，在针对该第五指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第六时间间隔之后，终端设备在切换后的小区应用指示的该第五TCI state，
1603，发送第六指示信息，其中，该第六指示信息指示第六TCI state；
1604，接收针对该第六指示信息的反馈信息(HARQ-ACK)，其中，在针对该第六指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第七时间间隔之后，终端设备在服务小区应用指示的所述第六TCI state；
1605，发送第七指示信息，其中，该第七指示信息指示小区切换；
1606，在参考符号后经过至少第八时间间隔之后，终端设备在切换后的小区应用指示的该第六TCI state，其中，该参考符号是该第七指示信息的最后一个符号，或者，针对该第七指示信息的反馈信息(HARQ-ACK)的最后一个符号。
值得注意的是，以上附图15-附图16仅对本申请实施例进行了示意性说明，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图15-附图16的记载。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知，通过第三指示信息以及第四指示信息，终端设备能够在切换后的小区应用指示的第四TCI state。由此，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
第五方面的实施例
本申请实施例提供一种信息接收装置。该装置例如可以是终端设备，也可以是配置于终端设备的某个或某些部件或者组件，与第一方面的实施例相同的内容不再赘述。
图17是本申请实施例的信息接收装置的一示意图。如图17所示，信息接收装置1700包括：
接收单元1701，其接收第一指示信息，其中，该第一指示信息指示第一TCI state和小区切换，
发送单元1702，其发送反馈信息(HARQ-ACK)；其中，在所述反馈信息 (HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
在一些实施方式中，其中，接收单元1701还接收第一配置信息，其中，该第一配置信息配置一个或者多个候选目标小区。
在一些实施方式中，其中，第一指示信息在配置的该一个或者多个候选目标小区中指示一个候选目标小区作为主目标小区。
在一些实施方式中，其中，配置的该一个或者多个候选目标小区中的每个候选目标小区关联一个第一时间间隔，该经过至少第一时间间隔包括经过所述主目标小区关联的第一时间间隔。
在一些实施方式中，其中，指示的该第一TCI state与一个小区关联，该小区是该主目标小区，或者，是除该主目标小区以外的小区。
在一些实施方式中，其中，该切换后的小区包括：该主目标小区；或者，该主目标小区和除所述主目标小区以外的一个或多个候选目标小区，其中，所述主目标小区和除所述主目标小区以外的一个或多个候选目标小区属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)。
在一些实施方式中，其中，属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区关联的第一时间间隔相同。
在一些实施方式中，其中，候选目标小区关联的第一时间间隔是一个或多个符号，该一个或多个符号根据第一参考小区确定，该第一参考小区包括以下之一：该第一时间间隔关联的所述候选目标小区；与该第一时间间隔关联的所述候选目标小区属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区中子载波间隔最小的候选目标小区；配置的所述一个或者多个候选目标小区中子载波间隔最小的候选目标小区；服务小区中子载波间隔最小的服务小区。
在一些实施方式中，其中，在所述反馈信息(HARQ-ACK)的最后一个符号后 经过至少第一时间间隔(Z)之后的第一个时隙开始，在切换后的小区应用指示的所述第一TCI state，其中，所述第一个时隙根据第二参考小区确定，所述第二参考小区包括以下之一：所述主目标小区；所述切换后的小区中子载波间隔最小的小区。
在一些实施方式中，其中，接收单元1701还接收第二配置信息，其中，该第二配置信息为配置的所述一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔；或者，所述第二配置信息为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置同一个第三时间间隔；或者，所述第二配置信息为配置的所述一个或者多个候选目标小区配置一个第三时间间隔。
在一些实施方式中，其中，一个候选目标小区关联的第一时间间隔等于为所述候选目标小区配置的所述第三时间间隔。
在一些实施方式中，其中，在所述第二配置信息为配置的所述一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔的情况下：为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置的所述第三时间间隔相同。
在一些实施方式中，其中，所述第三时间间隔是一个或多个符号，其中，所述一个或多个符号根据所述第一参考小区确定。
在一些实施方式中，其中，信息接收装置1700还包括：上报单元1703，其为配置的所述一个或者多个候选目标小区中的每个候选目标小区上报一个第二时间间隔；或者，其为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区上报同一个第二时间间隔；或者，其为配置的所述一个或者多个候选目标小区上报一个第二时间间隔。
在一些实施方式中，其中，一个候选目标小区关联的第一时间间隔等于为所述候选目标小区上报的所述第二时间间隔。
在一些实施方式中，其中，在为配置的所述一个或者多个候选目标小区中的每个候选目标小区上报一个第二时间间隔的情况下，为属于同一个同时TCI更新列表 (simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区上报的所述第二时间间隔相同。
在一些实施方式中，其中，所述第二时间间隔是一个或多个符号，其中，所述一个或多个符号根据所述第一参考小区确定。
在一些实施方式中，其中，该第一TCI state应用于所述主目标小区的以下至少一种信道或信号：SSB；PRACH；类型1物理下行控制信道公共搜索空间集合Type1-PDCCH CSS set；与Type1-PDCCH CSS set关联的CORESET；类型2物理下行控制信道公共搜索空间集合Type2-PDCCH CSS set；与Type2-PDCCH CSS set关联的CORESET；被随机接入响应上行授权RAR(Random Access Response)UL grant调度的PUSCH。
在一些实施方式中，其中，接收单元1701在接收所述第一指示信息之后接收第二指示信息，其中，该第二指示信息指示第二TCI state；其中，在应用指示的所述第一TCI state的第一小区集合是应用指示的所述第二TCI state的第二小区集合的子集的情况下，在所述第二小区集合上应用指示的所述第二TCI state，其中，所述第二TCI state与所述第一TCI state相同。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。信息接收装置1700还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图17中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
由上述实施例可知，终端设备被指示切换到某一候选目标小区，在该候选目标小区关联的时间间隔之后在目标小区应用与该候选目标小区关联的TCI state。通过发明方法，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用 TCI state产生歧义，从而实现快速的波束切换和小区切换。
第六方面的实施例
本申请实施例提供一种信息接收装置。该装置例如可以是终端设备，也可以是配置于终端设备的某个或某些部件或者组件；此外，与第二方面的实施例相同的内容不再赘述。
图18是本申请实施例的信息接收装置的另一示意图。如图18所示，信息接收装置1800包括：
第二接收单元1801，其接收第三指示信息，其中，所述第三指示信息指示第四TCI state；
第二发送单元1802，其针对所述第三指示信息发送反馈信息(HARQ-ACK)，其中，在针对所述第三指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，在服务小区应用指示的所述第四TCI state；第二接收单元1801还接收第四指示信息，其中，所述第四指示信息指示小区切换；在参考符号后经过至少第五时间间隔之后，在切换后的小区应用指示的所述第四TCI state，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，是第二发送单元1802针对所述第四指示信息发送的反馈信息(HARQ-ACK)的最后一个符号。
由此，通过第三指示信息以及第四指示信息，终端设备能够在切换后的小区应用指示的第四TCI state。由此，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
在一些实施方式中，第五方面的实施例可以与第六方面的实施例结合起来执行图12所示的方法，在此不做重复说明。
例如，上报单元1703和/或配置在信息接收装置1800的第二上报单元(图18未示出)还可以上报第九时间间隔和第十时间间隔；接收单元1701和/或第二接收单元1801还接收第四配置信息，所述第四配置信息配置第十一时间间隔、第十二时间间隔和第十三时间间隔。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。信息接收装置1800还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图18中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
由上述实施例可知，通过第三指示信息以及第四指示信息，终端设备能够在切换后的小区应用指示的第四TCI state。由此，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
第七方面的实施例
本申请实施例提供一种信息发送装置。该装置例如可以是网络设备，也可以是配置于网络设备的某个或某些部件或者组件，与第一方面的实施例相同的内容不再赘述。
图19是本申请实施例的信息发送装置的一示意图。如图19所示，信息发送装置1900包括：
第三发送单元1901，其发送第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换，
第三接收单元1902，其接收反馈信息(HARQ-ACK)；其中，所述第一TCI state被用来在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
终端设备被指示切换到某一候选目标小区，在该候选目标小区关联的时间间隔之后在目标小区应用与该候选目标小区关联的TCI state。通过发明方法，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
在一些实施方式中，第三发送单元1901还发送第一配置信息，其中，所述第一配置信息配置一个或者多个候选目标小区。
发送第二配置信息，其中，第三发送单元1901还发送第二配置信息，所述第二配置信息为所述第一配置信息配置的所述一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔，一个候选目标小区关联的第一时间间隔等于配置的第三时间间隔；或者，所述第二配置信息为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置同一个第三时间间隔；或者，所述第二配置信息为配置的所述一个或者多个候选目标小区配置一个第三时间间隔。
在一些实施方式中，第三发送单元1901还发送第三配置信息，其中，所述第三配置信息配置小区间波束管理模式或者小区切换模式。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。信息发送装置1900还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图19中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
由上述实施例可知，终端设备被指示切换到某一候选目标小区，在该候选目标小区关联的时间间隔之后在目标小区应用与该候选目标小区关联的TCI state。通过发明方法，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
第八方面的实施例
本申请实施例提供一种信息发送装置。该装置例如可以是网络设备，也可以是配置于网络设备的某个或某些部件或者组件，与第二方面的实施例相同的内容不再赘述。
图20是本申请实施例的信息发送装置的另一示意图。如图20所示，信息发送装置2000包括：
第四发送单元2001，其发送第三指示信息，其中，所述第三指示信息指示第四TCI state；
第四接收单元2002，其接收针对所述第三指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第三指示信息的所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，终端设备在服务小区应用指示的所述第四TCI state；
第四发送单元2001还发送第四指示信息，其中，所述第四指示信息指示小区切换；
其中，在参考符号后经过至少第五时间间隔之后，终端设备在切换后的小区应用指示的所述第四TCI state，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，针对所述第四指示信息的反馈信息(HARQ-ACK)的最后一个符号。
由此，通过第三指示信息以及第四指示信息，终端设备能够在切换后的小区应用指示的第四TCI state。由此，能够避免终端设备和网络设备对从何时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
在一些实施方式中，第七方面的实施例可以与第八方面的实施例结合起来执行图16所示的方法，在此不做重复说明。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。信息发送装置2000还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图20中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
由上述实施例可知，通过第三指示信息以及第四指示信息，终端设备能够在切换后的小区应用指示的第四TCI state。由此，能够避免终端设备和网络设备对从何 时开始可以在切换后的小区上应用TCI state产生歧义，从而实现快速的波束切换和小区切换。
第九方面的实施例
本申请实施例还提供一种通信系统，可以参考图1，与第一方面至第八方面的实施例相同的内容不再赘述。
在一些实施方式中，通信系统100至少可以包括：网络设备和终端设备，其中，
所述网络设备发送第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换；以及接收反馈信息(HARQ-ACK)；
所述终端设备接收所述第一指示信息；以及发送所述反馈信息(HARQ-ACK)，其中，在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
在一些实施方式中，通信系统100还至少可以包括：网络设备和终端设备，其中，
所述网络设备发送第三指示信息，其中，所述第三指示信息指示第四TCI state；以及接收针对所述第三指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第三指示信息的所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，所述终端设备在服务小区应用指示的所述第四TCI state；
所述网络设备还发送第四指示信息，其中，所述第四指示信息指示小区切换；其中，在参考符号后经过至少第五时间间隔之后，所述终端设备在切换后的小区应用指示的所述第四TCI state，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，针对所述第四指示信息的反馈信息(HARQ-ACK)的最后一个符号。
在一些实施方式中，通信系统100还至少可以包括：网络设备和终端设备，其中，
所述网络设备发送第五指示信息，其中，所述第五指示信息指示第五TCI state和小区切换；以及接收针对所述第五指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第五指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第六时间间隔之后，所述终端设备在切换后的小区应用指示的所述第五TCI state；
所述网络设备还发送第六指示信息，其中，所述第六指示信息指示第六TCI state；
接收针对所述第六指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第六指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第七时间间隔之后，所述终端设备在服务小区应用指示的所述第六TCI state；
所述网络设备还发送第七指示信息，其中，所述第七指示信息指示小区切换；
其中，在参考符号后经过至少第八时间间隔之后，所述终端设备在切换后的小区应用指示的所述第六TCI state，其中，所述参考符号是所述第七指示信息的最后一个符号，或者，针对所述第七指示信息的反馈信息(HARQ-ACK)的最后一个符号。
本申请实施例还提供一种网络设备，例如可以是基站，但本申请不限于此，还可以是其他的网络设备。
图21是本申请实施例的网络设备的构成示意图。如图21所示，网络设备2100可以包括：处理器2110(例如中央处理器CPU)和存储器2120；存储器2120耦合到处理器2110。其中该存储器2120可存储各种数据；此外还存储信息处理的程序2930，并且在处理器2110的控制下执行该程序2130。
此外，如图21所示，网络设备2100还可以包括：收发机2140和天线2150等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备2100也并不是必须要包括图21中所示的所有部件；此外，网络设备2100还可以包括图21中没有示出的部件，可以参考现有技术。
本申请实施例还提供一种终端设备，但本申请不限于此，还可以是其他的设备。
图22是本申请实施例的终端设备的示意图。如图22所示，该终端设备2200可以包括处理器2210和存储器2220；存储器2220存储有数据和程序，并耦合到处理器2210。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
例如，处理器2210可以被配置为执行程序而实现如第一方面的实施例或者第二方面的实施例所述的信息接收方法。例如处理器2210可以被配置为进行如下的控制：接收第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换，发送反馈信息(HARQ-ACK)；在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
如图22所示，该终端设备2200还可以包括：通信模块2230、输入单元2240、 显示器2250、电源2260。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，终端设备2200也并不是必须要包括图22中所示的所有部件，上述部件并不是必需的；此外，终端设备2200还可以包括图22中没有示出的部件，可以参考现有技术。
本申请实施例还提供一种计算机程序，其中当在终端设备中执行所述程序时，所述程序使得所述终端设备执行第一方面至第二方面的实施例所述的信息接收方法。
本申请实施例还提供一种存储有计算机程序的存储介质，其中所述计算机程序使得终端设备执行第一方面至第二方面的实施例所述的信息接收方法。
本申请实施例还提供一种计算机程序，其中当在终端设备中执行所述程序时，所述程序使得所述终端设备执行第三方面至第四方面的实施例所述的信息发送方法。
本申请实施例还提供一种存储有计算机程序的存储介质，其中所述计算机程序使得终端设备执行第三方面至第四方面的实施例所述的信息发送方法。
本申请以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本申请涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本申请还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本申请实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中， 也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本申请进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本申请保护范围的限制。本领域技术人员可以根据本申请的精神和原理对本申请做出各种变型和修改，这些变型和修改也在本申请的范围内。
关于包括以上实施例的实施方式，还公开下述的附记：
1.一种信息接收方法，应用于终端设备，其中，所述方法包括：
接收第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换，
发送反馈信息(HARQ-ACK)；
在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
2.根据附记1所述的方法，其中，所述方法还包括：
接收第一配置信息，其中，所述第一配置信息配置一个或者多个候选目标小区。
3.根据附记2所述的方法，其中，所述第一指示信息在配置的所述一个或者多个候选目标小区中指示一个候选目标小区作为主目标小区。
4.根据附记3所述的方法，其中，配置的所述一个或者多个候选目标小区中的每个候选目标小区关联一个第一时间间隔，所述经过至少第一时间间隔包括经过所述主目标小区关联的第一时间间隔。
5.根据附记3所述的方法，其中，指示的所述第一TCI state与一个小区关联，所述小区是所述主目标小区，或者，是除所述主目标小区以外的小区。
6.根据附记3所述的方法，其中，所述切换后的小区包括：
所述主目标小区；或者，
所述主目标小区和除所述主目标小区以外的一个或多个候选目标小区，其中，所述主目标小区和除所述主目标小区以外的一个或多个候选目标小区属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)。
7.根据附记4所述的方法，其中，属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区关联的所述第一时间间隔相同。
8.根据附记4所述的方法，其中，所述候选目标小区关联的所述第一时间间隔是一个或多个符号，其中，所述一个或多个符号根据第一参考小区确定，所述第一参考小区包括以下之一：
所述第一时间间隔关联的所述候选目标小区；
与所述第一时间间隔关联的所述候选目标小区属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区中子载波间隔最小的候选目标小区；
配置的所述一个或者多个候选目标小区中子载波间隔最小的候选目标小区；或者
服务小区中子载波间隔最小的服务小区。
9.根据附记6所述的方法，其中，在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔(Z)之后的第一个时隙开始，在切换后的小区应用指示的所述第一TCI state，
其中，所述第一个时隙根据第二参考小区确定，所述第二参考小区包括以下之一：
所述主目标小区；
所述切换后的小区中子载波间隔最小的小区。
10.根据附记8所述的方法，其中，所述方法还包括：
接收第二配置信息，其中，
所述第二配置信息为配置的所述一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔；或者
所述第二配置信息为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置同一个第三时间间隔；或者
所述第二配置信息为配置的所述一个或者多个候选目标小区配置一个第三时间间隔。
11.根据附记10所述的方法，其中，一个候选目标小区关联的第一时间间隔等于为所述候选目标小区配置的所述第三时间间隔。
12.根据附记10所述的方法，其中，在所述第二配置信息为配置的所述一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔的情况下：
为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置的所述第三时间间隔相同。
13.根据附记10-12任意一项所述的方法，所述第三时间间隔是一个或多个符号，其中，所述一个或多个符号根据所述第一参考小区确定。
14.根据附记8所述的方法，其中，所述方法还包括：
为配置的所述一个或者多个候选目标小区中的每个候选目标小区上报一个第二时间间隔；或者
为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区上报同一个第二时间间隔；或者
为配置的所述一个或者多个候选目标小区上报一个第二时间间隔。
15.根据附记14所述的方法，其中，一个候选目标小区关联的第一时间间隔等于为所述候选目标小区上报的所述第二时间间隔。
16.根据附记14所述的方法，其中，在为配置的所述一个或者多个候选目标小区中的每个候选目标小区上报一个第二时间间隔的情况下，为属于同一个同时TCI 更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区上报的所述第二时间间隔相同。
17.根据附记14-16任意一项所述的方法，所述第二时间间隔是一个或多个符号，其中，所述一个或多个符号根据所述第一参考小区确定。
18.根据附记3所述的方法，其中，所述方法还包括：
所述第一TCI state应用于所述主目标小区的以下至少一种信道或信号：
SSB；
PRACH；
类型1物理下行控制信道公共搜索空间集合Type1-PDCCH CSS set；
与Type1-PDCCH CSS set关联的CORESET；
类型2物理下行控制信道公共搜索空间集合Type2-PDCCH CSS set；
与Type2-PDCCH CSS set关联的CORESET；或者
被随机接入响应上行授权RAR(Random Access Response)UL grant调度的PUSCH。
19.根据附记1所述的方法，其中，所述方法还包括：
在接收所述第一指示信息之后接收第二指示信息，其中，所述第二指示信息指示第二TCI state；
在应用指示的所述第一TCI state的第一小区集合是应用指示的所述第二TCI state的第二小区集合的子集的情况下，在所述第二小区集合上应用指示的所述第二TCI state。
20.根据附记19所述的方法，其中，所述第二TCI state与所述第一TCI state相同。
21.根据附记3所述的方法，其中，配置的所述一个或者多个候选目标小区中的每个候选目标小区关联一个第一时间间隔，所述经过至少第一时间间隔包括经过属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的主目标小区和候选目标小区关联的第一时间间隔中最大的时间间隔。
22.根据附记1-21任意一项所述的方法，其中，所述方法还包括：
接收第三配置信息，其中，所述第三配置信息配置小区间波束管理模式或者小区切换模式。
23.根据附记1-22任意一项所述的方法，其中，所述第一指示信息为第一DCI和/或第一MAC CE。
24.根据附记23所述的方法，其中，
所述第一指示信息为第一DCI，其中，所述第一DCI是没有下行分配的DCI，所述第一DCI的CRC使用CS-RNTI加扰，或者，所述第一DCI是有下行分配的DCI，所述第一DCI的CRC使用C-RNTI加扰。
25.根据附记23所述的方法，其中，
所述第一指示信息为第一DCI和第一MAC CE，其中，所述第一DCI是有下行分配的DCI，所述第一DCI的CRC使用C-RNTI加扰，所述第一DCI指示所述第一TCI state，所述第一MAC CE指示小区切换。
26.根据附记1-25任意一项所述的方法，其中，所述第一指示信息还指示CS-RNTI，其中，所述CS-RNTI对用于更新TCI state的第二DCI的CRC进行加扰。
27.根据附记1-26任意一项所述的方法，其中，指示的所述第一TCI state与所述终端设备在被指示所述第一TCI state之前被指示的第三TCI state不同。
28.一种信息接收方法，应用于终端设备，其中，所述方法包括：
接收第三指示信息，其中，所述第三指示信息指示第四TCI state；
在针对所述第三指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，在服务小区应用指示的所述第四TCI state；
接收第四指示信息，其中，所述第四指示信息指示小区切换；
在参考符号后经过至少第五时间间隔之后，在切换后的小区应用指示的所述第四TCI state，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，针对所述第四指示信息发送的反馈信息(HARQ-ACK)的最后一个符号。
29.一种信息接收方法，应用于终端设备，其中，所述方法包括：
接收第五指示信息，其中，所述第五指示信息指示第五TCI state和小区切换，
在针对所述第五指示信息的反馈信息(HARQ-ACK)的最后一个符号后经过至少第六时间间隔之后，在切换后的小区应用指示的所述第五TCI state，
接收第六指示信息，其中，所述第六指示信息指示第六TCI state；
在针对所述第六指示信息的反馈信息(HARQ-ACK)的最后一个符号后经过至少第七时间间隔之后，在服务小区应用指示的所述第六TCI state；
接收第七指示信息，其中，所述第七指示信息指示小区切换；
在参考符号后经过至少第八时间间隔之后，在切换后的小区应用指示的所述第六TCI state，其中，所述参考符号是所述第七指示信息的最后一个符号，或者，针对所述第七指示信息的反馈信息(HARQ-ACK)的最后一个符号。
30.根据附记29所述的方法，其中，所述方法还包括：
上报第九时间间隔和第十时间间隔；
接收第四配置信息，所述第四配置信息配置第十一时间间隔、第十二时间间隔和第十三时间间隔。
31.一种信息发送方法，应用于网络设备，其中，所述方法包括：
发送第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换，
接收反馈信息(HARQ-ACK)；
其中，所述第一TCI state被用来在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
32.根据附记31所述的方法，其中，所述方法还包括：
发送第一配置信息，其中，所述第一配置信息配置一个或者多个候选目标小区。
33.根据附记31所述的方法，其中，所述方法还包括：
发送第二配置信息，其中，
所述第二配置信息为所述第一配置信息配置的所述一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔，一个候选目标小区关联的第一时间间隔等于配置的第三时间间隔；或者
所述第二配置信息为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置同一个第三时间间隔；或者
所述第二配置信息为配置的所述一个或者多个候选目标小区配置一个第三时间间隔。
34.根据附记31所述的方法，其中，所述方法还包括：
发送第三配置信息，其中，所述第三配置信息配置小区间波束管理模式或者小区切换模式。
35.一种信息发送方法，应用于网络设备，其中，所述方法包括：
发送第三指示信息，其中，所述第三指示信息指示第四TCI state；
接收针对所述第三指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第三指示信息的所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，终端设备在服务小区应用指示的所述第四TCI state；
发送第四指示信息，其中，所述第四指示信息指示小区切换；
其中，在参考符号后经过至少第五时间间隔之后，终端设备在切换后的小区应用指示的所述第四TCI state，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，针对所述第四指示信息的反馈信息(HARQ-ACK)的最后一个符号。
36.一种信息发送方法，应用于网络设备，其中，所述方法包括：
发送第五指示信息，其中，所述第五指示信息指示第五TCI state和小区切换，
接收针对所述第五指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第五指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第六时间间隔之后，终端设备在切换后的小区应用指示的所述第五TCI state，
发送第六指示信息，其中，所述第六指示信息指示第六TCI state；
接收针对所述第六指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第六指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第七时间间隔之后，终端设备在服务小区应用指示的所述第六TCI state；
发送第七指示信息，其中，所述第七指示信息指示小区切换；
其中，在参考符号后经过至少第八时间间隔之后，终端设备在切换后的小区应用指示的所述第六TCI state，其中，所述参考符号是所述第七指示信息的最后一个符号，或者，针对所述第七指示信息的反馈信息(HARQ-ACK)的最后一个符号。
37.一种终端设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记1至30任一项所述的信息接收方法。
38.一种网络设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记31至36任一项所述的信息发 送方法。
39.一种通信系统，包括：网络设备和终端设备，其中，
所述网络设备发送第一指示信息，其中，所述第一指示信息指示第一TCI state和小区切换；以及接收反馈信息(HARQ-ACK)；
所述终端设备接收所述第一指示信息；以及发送所述反馈信息(HARQ-ACK)，其中，在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一TCI state。
40.一种通信系统，包括：网络设备和终端设备，其中，
所述网络设备发送第三指示信息，其中，所述第三指示信息指示第四TCI state；以及接收针对所述第三指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第三指示信息的所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，所述终端设备在服务小区应用指示的所述第四TCI state；
所述网络设备还发送第四指示信息，其中，所述第四指示信息指示小区切换；其中，在参考符号后经过至少第五时间间隔之后，所述终端设备在切换后的小区应用指示的所述第四TCI state，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，针对所述第四指示信息的反馈信息(HARQ-ACK)的最后一个符号。
41.一种通信系统，包括：网络设备和终端设备，其中，
所述网络设备发送第五指示信息，其中，所述第五指示信息指示第五TCI state和小区切换；以及接收针对所述第五指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第五指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第六时间间隔之后，所述终端设备在切换后的小区应用指示的所述第五TCI state；
所述网络设备还发送第六指示信息，其中，所述第六指示信息指示第六TCI state；
接收针对所述第六指示信息的反馈信息(HARQ-ACK)，其中，在针对所述第六指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第七时间间隔之后，所述终端设备在服务小区应用指示的所述第六TCI state；
所述网络设备还发送第七指示信息，其中，所述第七指示信息指示小区切换；
其中，在参考符号后经过至少第八时间间隔之后，所述终端设备在切换后的小区应用指示的所述第六TCI state，其中，所述参考符号是所述第七指示信息的最后一个符号，或者，针对所述第七指示信息的反馈信息(HARQ-ACK)的最后一个符号。

Claims (20)

  1. 一种信息接收装置，配置于终端设备，所述信息接收装置包括：
    接收单元，其接收第一指示信息，其中，所述第一指示信息指示第一传输配置指示状态(TCI state)和小区切换，
    发送单元，其发送反馈信息(HARQ-ACK)；
    其中，在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后，在切换后的小区应用指示的所述第一传输配置指示状态(TCI state)。
  2. 根据权利要求1所述的装置，其中，
    所述接收单元还接收第一配置信息，其中，所述第一配置信息配置一个或者多个候选目标小区。
  3. 根据权利要求2所述的装置，其中，所述第一指示信息在配置的所述一个或者多个候选目标小区中指示一个候选目标小区作为主目标小区。
  4. 根据权利要求3所述的装置，其中，配置的所述一个或者多个候选目标小区中的每个候选目标小区关联一个第一时间间隔，所述经过至少第一时间间隔包括经过所述主目标小区关联的第一时间间隔。
  5. 根据权利要求3所述的装置，其中，指示的所述第一传输配置指示状态(TCI state)与一个小区关联，所述小区是所述主目标小区，或者，是除所述主目标小区以外的小区。
  6. 根据权利要求3所述的装置，其中，所述切换后的小区包括：
    所述主目标小区；或者，
    所述主目标小区和除所述主目标小区以外的一个或多个候选目标小区，其中，所述主目标小区和除所述主目标小区以外的一个或多个候选目标小区属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)。
  7. 根据权利要求4所述的装置，其中，属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区关联的所述第一时间间隔相同。
  8. 根据权利要求4所述的装置，其中，所述候选目标小区关联的所述第一时间间隔是一个或多个符号，所述一个或多个符号根据第一参考小区确定，所述第一参考小区包括以下之一：
    所述第一时间间隔关联的所述候选目标小区；
    与所述第一时间间隔关联的所述候选目标小区属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区中子载波间隔最小的候选目标小区；
    配置的所述一个或者多个候选目标小区中子载波间隔最小的候选目标小区；
    服务小区中子载波间隔最小的服务小区。
  9. 根据权利要求6所述的装置，其中，在所述反馈信息(HARQ-ACK)的最后一个符号后经过至少第一时间间隔之后的第一个时隙开始，在切换后的小区应用指示的所述第一传输配置指示状态(TCI state)，
    其中，所述第一个时隙根据第二参考小区确定，所述第二参考小区包括以下之一：
    所述主目标小区；
    所述切换后的小区中子载波间隔最小的小区。
  10. 根据权利要求8所述的装置，其中，
    所述接收单元还接收第二配置信息，其中，所述第二配置信息为配置的所述一个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔；或者
    所述第二配置信息为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置同一个第三时间间隔；或者
    所述第二配置信息为配置的所述一个或者多个候选目标小区配置一个第三时间间隔。
  11. 根据权利要求10所述的装置，其中，一个候选目标小区关联的第一时间间隔等于为所述候选目标小区配置的所述第三时间间隔。
  12. 根据权利要求10所述的装置，其中，在所述第二配置信息为配置的所述一 个或者多个候选目标小区中的每个候选目标小区配置一个第三时间间隔的情况下：
    为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区配置的所述第三时间间隔相同。
  13. 根据权利要求10-12任意一项所述的装置，其中，所述第三时间间隔是一个或多个符号，其中，所述一个或多个符号根据所述第一参考小区确定。
  14. 根据权利要求8所述的装置，其中，所述装置还包括：
    上报单元，其为配置的所述一个或者多个候选目标小区中的每个候选目标小区上报一个第二时间间隔；或者
    其为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区上报同一个第二时间间隔；或者
    其为配置的所述一个或者多个候选目标小区上报一个第二时间间隔。
  15. 根据权利要求14所述的装置，其中，一个候选目标小区关联的第一时间间隔等于为所述候选目标小区上报的所述第二时间间隔。
  16. 根据权利要求14所述的装置，在为配置的所述一个或者多个候选目标小区中的每个候选目标小区上报一个第二时间间隔的情况下，为属于同一个同时TCI更新列表(simultaneousTCI-UpdateList)，和/或，属于同一个主小区组(MCG，Master Cell Group)，和/或，属于同一个辅小区组(SCG，Secondary Cell Group)的候选目标小区上报的所述第二时间间隔相同。
  17. 根据权利要求14-16任意一项所述的装置，其中，所述第二时间间隔是一个或多个符号，其中，所述一个或多个符号根据所述第一参考小区确定。
  18. 根据权利要求3所述的装置，其中，
    所述第一传输配置指示状态(TCI state)应用于所述主目标小区的以下至少一种信道或信号：
    同步信息块(Synchronization Signal and PBCH block,SSB)；
    物理随机接入信道(Physical Random Access Channel，PRACH)；
    类型1物理下行控制信道公共搜索空间集合(Type1-PDCCH CSS set)；
    与类型1物理下行控制信道公共搜索空间集合(Type1-PDCCH CSS set)关联 的控制资源集(CORESET)；
    类型2物理下行控制信道公共搜索空间集合(Type2-PDCCH CSS set)；
    与类型2物理下行控制信道公共搜索空间集合(Type2-PDCCH CSS set)关联的控制资源集(CORESET)；或者，
    被随机接入响应上行授权(Random Access Response UL grant)调度的物理上行共享信道(PUSCH)。
  19. 根据权利要求1所述的装置，其中，所述接收单元在接收所述第一指示信息之后接收第二指示信息，其中，所述第二指示信息指示第二传输配置指示状态(TCI state)；
    在应用指示的所述第一传输配置指示状态(TCI state)的第一小区集合是应用指示的所述第二传输配置指示状态(TCI state)的第二小区集合的子集的情况下，在所述第二小区集合上应用指示的所述第二传输配置指示状态(TCI state)，其中，所述第二传输配置指示状态(TCI state)与所述第一传输配置指示状态(TCI state)相同。
  20. 一种信息接收装置，配置于终端设备，所述信息接收装置包括：
    第二接收单元，其接收第三指示信息，其中，所述第三指示信息指示第四传输配置指示状态(TCI state)；
    第二发送单元，其针对所述第三指示信息发送反馈信息(HARQ-ACK)，其中，在针对所述第三指示信息发送的反馈信息(HARQ-ACK)的最后一个符号后经过至少第四时间间隔之后，在服务小区应用指示的所述第四传输配置指示状态(TCI state)；
    所述第二接收单元还接收第四指示信息，其中，所述第四指示信息指示小区切换；
    在参考符号后经过至少第五时间间隔之后，在切换后的小区应用指示的所述第四传输配置指示状态(TCI state)，其中，所述参考符号是所述第四指示信息的最后一个符号，或者，是所述第二发送单元针对所述第四指示信息发送的反馈信息(HARQ-ACK)的最后一个符号。
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