CN110475262B

CN110475262B - Configuration method of quasi co-location information, network equipment and user equipment

Info

Publication number: CN110475262B
Application number: CN201810450348.9A
Authority: CN
Inventors: 胡丽洁; 夏亮; 吴丹; 左君; 侯雪颖
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2018-05-11
Filing date: 2018-05-11
Publication date: 2021-08-06
Anticipated expiration: 2038-05-11
Also published as: CN110475262A; WO2019214383A1

Abstract

The embodiment of the invention provides a configuration method of quasi co-location information, network equipment and user equipment, wherein the method comprises the following steps: the transmission configuration, which configures or determines the search space of the controlling resource set CORESET #0 or associated CORESET #0, indicates TCI status information. The embodiment of the invention can solve the problem that the network equipment and the user equipment have inconsistent understanding of CORESET # 0.

Description

Configuration method of quasi co-location information, network equipment and user equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method for configuring quasi-co-location information, a network device, and a user equipment.

Background

In the current design of a new air interface (NR) mobile communication system of the fifth Generation (5 Generation, 5G), a User Equipment (UE) needs to determine a time domain detection position of a Control channel through a search space configuration, where a Control Resource set (CORESET) is associated, and a frequency domain position where the Control channel appears, a bandwidth, a Transmission Configuration Indication (TCI), and other information are configured in the CORESET.

The TCI specifies a Quasi Co-Location (QCL) relationship between the CORESET and the reference signal, and the TCI may include a plurality of QCL relationships, and which QCL relationship is used by a specific Control channel may be configured by a media access Control layer Control Element (MAC CE).

If the signals of two antenna ports satisfy the QCL relationship, then the two signals transmitted from the two antenna ports experience similar large scale characteristics. The large-scale characteristics include Doppler shift (Doppler shift), Doppler spread (Doppler spread), average delay (average delay), delay spread (delay spread), Spatial Rx parameter (Spatial Rx parameter), and the like. Assuming that both antenna ports are QCL, it is advantageous for receiver processing, such as channel estimation results obtained from one antenna port, to be available for the other antenna port. Specifically, the QCL type (QCL type) may include:

QCL type a, whose quasi co-location parameters include: doppler shift, doppler spread, average delay and delay spread;

QCL type B, whose quasi co-location parameters include: doppler shift and doppler spread;

QCL type C, whose quasi co-location parameters include: average time delay and doppler shift;

QCL type D, whose quasi co-location parameters include: the space receives the parameters.

For the search space and the CORESET configured by a high-level Radio Resource Control (RRC) signaling, when scheduling Control information of a scheduling user dedicated traffic Channel is transmitted, since a QCL relationship of a Physical Downlink Control Channel (PDCCH) can be determined by combining RRC signaling with a MAC CE, a user equipment and a base station (gNB) can achieve a consistent understanding.

A scheduling control Channel, which is typically used to transmit Remaining Minimized System Information (RMSI), is configured for Physical Broadcast Channel (PBCH) CORESET # 0. When configuring the CORESET #0, the bandwidth, duration length and time domain resource location of PDCCH detection (monitoring) of the CORESET may be indicated by 8 bits in PBCH. CORESET #0 may also be used to transmit scheduling control channels for paging (paging), OSI, RAR, etc. Since these messages are broadcast messages, and are transmitted in the CORESET #0 associated with each SSB number (SSB index), the CORESET #0 does not usually specify the QCL relationship. Here, in the 5G NR, the Primary Synchronization Signal (PSS), the Secondary Synchronization Signal (SSS), and the PBCH together constitute one SSB (SS/PBCH block), and the SSB occupies 4 OFDM symbols in the time domain and 240 subcarriers (20 PRBs) in the frequency domain.

However, when a PDCCH for scheduling a unicast Physical Downlink Shared Channel (PDSCH) is transmitted in the CORESET #0, if there is no corresponding QCL relationship, it may cause the base station and the UE to have inconsistent understanding of the CORESET # 0.

For example, based on the existing mechanism, the UE is configured with a UE-specific search space by the higher layer signaling, the search space is associated with CORESET #0, and the type of the search space is UE specific. That is, the ue detects a search space dedicated to the ue in CORESET #0 to obtain the scheduling information of the PDSCH. Then, when the location of the UE changes, the SSB index with a stronger signal received by the user may change, and the corresponding location of the time domain resource for receiving the RMSI may change. That is, in this case, the location where the UE receives the PDCCH becomes the CORESET location associated with the new SSB index, and the current base station does not know, so that there is a case where the PDCCH location transmitted for scheduling the unique PDSCH is different from the location detected by the UE, resulting in that the UE cannot receive the control channel.

Disclosure of Invention

The invention provides a configuration method of quasi co-location information, network equipment and user equipment, and aims to solve the problem that the network equipment and the user equipment do not understand the CORESET #0 consistently.

To solve the above technical problem, an embodiment of the present invention provides the following solutions:

a configuration method of quasi-co-location information is applied to network equipment and comprises the following steps:

the transmission configuration, which configures or determines the search space of the controlling resource set CORESET #0 or associated CORESET #0, indicates TCI status information.

The embodiment of the invention also provides a configuration method of quasi co-location information, which is applied to user equipment and comprises the following steps:

obtaining Transmission Configuration Indication (TCI) state information of a search space of a control resource set (CORESET #0 or an associated CORESET # 0);

and determining a reference signal and/or quasi-co-location type of a demodulation reference signal DMRS port associated with the receiving of the PDCCH according to the TCI state information.

An embodiment of the present invention further provides a network device, including: a processor and a transceiver;

the processor is used for configuring or determining the transmission configuration indication TCI state information of the control resource set CORESET #0 or the search space associated with CORESET # 0.

The embodiment of the invention also provides user equipment, which comprises a processor and a transceiver;

the processor is used for obtaining the TCI state information of the control resource set CORESET #0 or the transmission configuration indication TCI state information of the search space associated with CORESET # 0; and determining a reference signal and/or a quasi-co-location type quasi-co-located with a DMRS port associated with the receiving of the PDCCH according to the TCI state information.

An embodiment of the present invention provides a communication apparatus, including: a processor, a memory storing a computer program which, when executed by the processor, performs the above-described method.

Embodiments of the present invention provide a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the above-described method.

The technical scheme of the embodiment of the invention has the beneficial effects that: by configuring or determining the TCI state information of the CORESET #0 or configuring or determining the TCI state information of the search space associated with the CORESET #0, the network device and the user equipment can have a consistent understanding of the CORESET #0, and the user equipment can receive the control channel conveniently.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 illustrates a block diagram of a wireless communication system in which embodiments of the present invention are applicable;

fig. 2 is a flowchart illustrating a method for configuring quasi-co-location information on a network device side according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a method for configuring quasi co-location information at a terminal according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to Long Time Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.11(Wi-Fi), IEEE802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system comprises a user equipment 11 and a network device 12. The user equipment 11 may also be referred to as a terminal, a user terminal, or a ue (user equipment), where the user equipment 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the user equipment 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station and/or a core network element, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention only takes the Base Station in the NR system as an example, but does not limit the specific type of base station.

The base stations may communicate with the user equipment 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

The base station may communicate wirelessly with the user equipment 11 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

The communication link in the wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g. from the user equipment 11 to the network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g. from the network device 12 to the user equipment 11). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.

As shown in fig. 2, an embodiment of the present invention provides a method for configuring quasi-co-located information, which can also be referred to as a method for configuring Transmission Configuration Indication (TCI) information, and is applied to a network device, where the network device may specifically be a base station, and as shown in fig. 2, the method specifically includes the following steps:

at step 21, the TCI state information of CORESET #0 or the search space associated with CORESET #0 is configured or determined.

In the above steps, the network device may configure or determine the TCI status information of CORESET #0, or configure or determine the TCI status information of the search space associated with CORESET #0, where the TCI status information includes the QCL relationship. Through the configuration or the determination action, the CORESET #0 has the QCL relationship, so that the network equipment and the user equipment can have the same understanding on the CORESET #0, and the receiving of the user equipment on the control channel is facilitated.

Embodiments of the present invention further provide various more specific implementations of step 21.

Implementation mode 1:

for the search space configuration, when the CORESET #0 is associated, and the search space type is UE specific, the TCI state information may be additionally configured for the search space or the CORESET #0 corresponding to the search space. The configuration method may be to add corresponding information in the search space, or configure higher layer signaling (RRC signaling or MAC CE) to indicate its TCI status information or QCL relationship. For example, a Demodulation Reference Signal (DMRS) port associated with which the configured PDCCH receives a Reference Signal (e.g., DMRS port associated with a synchronization Signal or PBCH) corresponding to a certain SSB number (SSB index) is QCL. The User Equipment (UE) assumes that the DMRS antenna port associated with the PDCCH reception of the search space is quasi-co-located with the TCI state configured downlink reference signal.

In the above manner of indicating the TCI State information or the QCL corresponding relationship by configuring the higher layer signaling (RRC signaling or MAC-CE), since the value of the TCI State number (TCI State ID) indicated by the MAC CE in the existing signaling is derived from the TCI State information in the CORESET configuration, and there is no TCI State information configuration in the CORESET #0, the TCI-State pdcch information of the CORESET #0 needs to be predefined or configured, the TCI-State pdcch information may be a TCI State set, each TCI State in the set defines a QCL relationship with reference signals such as SSB index, CSI-RS-for-tracking, and the like, and the number of TCI states in the set may be predefined or given during configuration, and may also be related to the number of SSBs. Thus, the user can be configured with the TCI state ID through the MAC CE, and the values can be derived from the predefined or configured TCI state set of CORESET # 0.

For example, one configuration of the TCI state is as follows, and the above-mentioned TCI-state pdcch information or each TCI state in the TCI-state set configured for CORESET #0 may follow the following configuration.

In the embodiment of the present invention, for convenience of description, different reference signals in the preferencesignal in the above configuration IE are represented by reference signal types.

Each TCI status information (TCI-state information) may also take a simplified form, the reference signal is an SSB, and the QCL Type may also be a certain Type determined, for example, consistent with a quasi co-located Type when the UE receives a Type0-PDCCH common search space. Even, only the reference signal SSB and the corresponding SSB index are given in each TCI state, and the QCL Type is predefined to be consistent with the quasi-co-location Type when the UE receives the Type0-PDCCH common search space.

Specifically, in implementation 1, the network device may configure TCI state information associated with core set #0 through a high-level signaling; alternatively, TCI status information associated with CORESET #0 is predefined; wherein, the CORESET #0 may be configured through a Master Information Block (MIB). Here, the higher layer signaling may be RRC signaling such as RRC parameter configuration signaling or MAC CE.

When TCI status information associated with CORESET #0 is predefined, the network device and the user device may determine the same TCI status information based on the same predefined (e.g., defined by a correlation criterion).

In this implementation manner 1, the network device may also carry TCI state information in the configuration information of the search space, or configure, through a high-level signaling, the TCI state information associated with the search space, so as to implement configuration of the TCI state information associated with the search space of CORESET # 0.

Specifically, as an implementation manner, the TCI status information may include: at least one TCI state, wherein the TCI state includes at least one of a TCI state number, a QCL type, a reference signal type, and a reference signal number. Preferably, the at least one TCI state may be N TCI states, where N is a predefined positive integer, and the reference signal type corresponding to the TCI state number is SSB.

Considering the practical application scenario:

the N, M may be less than or equal to the maximum number of SSBs;

or, N, M is less than or equal to 64;

or, the N, M is less than or equal to the maximum number of SSBs that can be sent by the cell in which the CORESET #0 is located, where the maximum number of SSBs that can be sent by the cell in which the CORESET #0 is located is determined according to the carrier spacing and/or carrier frequency of the cell;

or, the number of the SSBs actually sent by the cell in which the CORESET #0 is located is less than or equal to N, M. Since the at least one TCI status may include more than or equal to 2 TCI statuses, in this embodiment of the present invention, the network device may further indicate one of the at least one TCI statuses to the user equipment through a higher layer signaling. Here, the higher layer signaling may be RRC signaling such as RRC parameter configuration signaling or MAC CE.

As another implementation manner, the TCI status information may include: m SSB numbers, wherein M is a positive integer. Since the M SSB numbers may include SSB numbers greater than or equal to 2, in this embodiment of the present invention, the network device may further indicate one of the M SSB numbers to the user equipment through a high layer signaling. Here, the higher layer signaling may be RRC signaling such as RRC parameter configuration signaling or MAC CE. Table 1 below is a simplified example of predefined or configured TCI status information received for the user-specific PDCCH of CORESET #0, including 64 SSB numbers, with the corresponding reference signal type being SSB.

TABLE 1 CORESET #0 TCI status information

Implementation mode 2:

certain rules are defined to determine the associated TCI status information, here mainly the QCL association with the SSB index. And based on the measurement information of the UE, setting a certain threshold value or taking the signal strength of the currently associated SSB index as the threshold value, and determining the currently associated TCI state information based on the threshold value and the measurement information of the UE. For example, based on the channel or signal strength of each SSB measured by the user, when M consecutive measurement report values of one or more SSBs are all higher than a certain threshold or all higher than the currently associated SSB, the associated SSB is updated to be the index of the SSB with the largest measurement value, and the UE assumes that the PDCCH of the search space is quasi-co-located with the DMRS antenna port associated with the reception of the PDCCH of the search space. In which case the value of M needs to be predefined or configured by the base station.

Specifically, in implementation 2, the network device may obtain, according to the signal measurement information on the SSB, a first SSB that meets a preset condition; determining the first SSB as the TCI status information.

Specifically, as a priority mode, the preset conditions include: an SSB of at least one SSB having a largest signal strength measurement, the at least one SSB comprising: and all the continuous X signal strength measurement values are larger than the SSB of a first threshold value, the first threshold value is a preset threshold value or the signal strength measurement value of the SSB currently associated with the search space, and X is a positive integer.

Here, the value of X is predefined or configured by a network device, and when the value of X is configured by the network device, the configuration method further includes: and sending the value of the X to user equipment.

Implementation mode 3:

the CORESET #0 is configured through high-level signaling, normally, the CORESET #0 is configured through MIB information in PBCH, and the CORESET #0 is reconfigured through high-level signaling to increase TCI state information. And when the UE receives the search space configuration, the associated CORESET ID is 0, and the search space type is UE specific, the UE assumes that a PDCCH of the search space receives the associated DMRS antenna port which is quasi co-located with the downlink reference signal configured by the increased TCI state information. For control channel reception using the broadcast information of CORESET #0, reception is still configured according to CORESET #0 configured with PBCH, i.e., without utilizing the added TCI status information.

In this implementation 3, the network device may send, through high-layer signaling, configuration information of core set #0, where the configuration information of core set #0 includes the TCI status information, and the TCI status information is applied to reception of a PDCCH associated with a UE-specific search space of core set # 0. Here, the higher layer signaling may be RRC signaling such as RRC parameter configuration signaling or MAC CE.

Implementation mode 4:

for the search space configuration of the UE, when CORESET #0 is associated, and the search space type is UE specific, the time domain resource location of the monitor of the PDCCH for scheduling the unicast PDSCH can be determined according to the search space configuration parameters, and the QCL relationship with the SS/PBCH block or the DMRS port associated with SS/PBCH reception is determined according to the overlap condition of the search space and the time domain location of the search space of type 0. The slot resource location of monitor can be determined, for example, by the period and offset parameters, "monitor slot periodicityandoffset," monitor symbols within the slot defining the symbol location, and by these parameters, the specific time domain resource location of monitor is determined. Since the SSB index and the PDCCH (i.e., PDCCH of type 0) monitoring window of the RMSI have a corresponding relationship, that is, the time domain resource location of the type0 search space, i.e., the scheduling PDCCH search space of the RMSI, can be obtained through PBCH configuration in the SSB.

When the monitoring time domain position indicated by the configured search space parameters of the PDCCH for scheduling the unicast PDSCH completely or partially coincides with the monitoring time domain position of the type0 search space, the user equipment assumes that the DMRS port associated with PDCCH reception of the scheduling unicast PDSCH in the search space has the same quasi-co-location relationship with the DMRS port associated with PDCCH reception in the search space of the type0 which coincides. The same quasi-co-location relationship means that they have a quasi-co-location relationship with the same DMRS port that the SS/PBCH receives associated with, or that they are all quasi-co-located with the same SS/PBCH block.

The above-mentioned partial coincidence occurs in some cases, for example, the user-specific search space period may be different from the period of the search space of type0, such as the search space period of type0 being 20ms and the period of the user-specific search space being 10ms, then only the temporal locations where the search space occurs every 20ms type0 will coincide, rather than every 10 ms.

In this implementation 4, the network device may determine, according to the configuration parameter of the search space, a first time domain resource location for detecting a PDCCH, where the PDCCH is used to schedule a unicast PDSCH; determining a PDCCH common search space of type0 overlapping with a first time domain resource location; taking the first DMRS port or the second DMRS port or the first SS/PBCH block as Transmission Configuration Indication (TCI) state information;

wherein the first DMRS port is: receiving an associated DMRS port by the PDCCH of the PDCCH common search space of the type 0; the second DMRS port is: receiving, by a SS/PBCH that is quasi co-located with the first DMRS port, the associated DMRS port; the first SS/PBCH block is as follows: a SS/PBCH block quasi co-located with the first DMRS port.

Through the different implementation manners, the network device in the embodiment of the present invention may configure or determine the TCI state information of the CORESET #0, or configure or determine the TCI state information of the search space associated with the CORESET #0, so that the CORESET #0 has a QCL relationship, and thus, the network device and the user device can understand the CORESET #0 consistently, which is beneficial to the user device receiving the control channel.

The specific actions of the ue in the embodiment of the present invention will be further described below. As shown in fig. 3, an embodiment of the present invention provides a method for configuring quasi-co-location information, which is applied to a user equipment, and as shown in fig. 3, the method specifically includes the following steps:

step 31, obtaining the TCI state information of CORESET #0 or the search space associated with CORESET # 0.

And step 32, determining a reference signal and/or a quasi-co-located type of a DMRS port associated with the receiving of the PDCCH according to the TCI state information.

Through the above steps, the ue of the embodiment of the present invention may obtain the TCI state information of the CORESET #0, or obtain the TCI state information of the search space associated with the CORESET #0, so that the CORESET #0 has a QCL relationship, and thus, the network device and the ue can understand the CORESET #0 consistently, which is beneficial for the ue to receive the control channel.

The behavior of the ue in step 31 above will be described separately corresponding to the foregoing implementation.

Corresponding to the foregoing implementation 1:

the user equipment receives TCI state information which is configured by a high-level signaling and is associated with CORESET # 0; alternatively, the TCI status information associated with CORESET #0 is predefined. Wherein the CORESET #0 is configured through the MIB.

In addition, the user equipment can also acquire TCI state information from the configuration information of the search space; or receiving TCI state information which is configured through high-layer signaling and is related to the search space, thereby obtaining the configuration of the TCI state information of the search space related to CORESET # 0.

Considering the practical application scenario:

the N, M may be less than or equal to the maximum number of SSBs;

or, N, M is less than or equal to 64;

or, the number of the SSBs actually sent by the cell in which the CORESET #0 is located is less than or equal to N, M.

Since the at least one TCI status may include more than or equal to 2 TCI statuses, in this embodiment of the present invention, the ue may further receive one TCI status of the at least one TCI status indicated by a higher layer signaling, or one SSB number of the M SSB numbers. Here, the higher layer signaling may be RRC signaling such as RRC parameter configuration signaling or MAC CE.

Corresponding to implementation 2 above:

the user equipment can obtain a first SSB meeting preset conditions according to signal measurement information on the SSB; determining the first SSB as the TCI status information.

Here, the value of X is predefined or configured by a network device, and when the value of X is configured by the network device, the configuration method further includes: and receiving the value of the X sent by the network equipment.

Corresponding to implementation 3 above:

the UE receives configuration information of CORESET #0 sent by a high-layer signaling, wherein the configuration information of CORESET #0 comprises TCI state information, and the TCI state information is applied to receiving a PDCCH of a UE-specific search space associated with CORESET # 0. Here, the higher layer signaling may be RRC signaling such as RRC parameter configuration signaling or MAC CE.

Corresponding to implementation 4 above:

the user equipment determines a first time domain resource position for detecting a PDCCH according to the configuration parameters of the search space, wherein the PDCCH is used for scheduling the unicast PDSCH; determining a PDCCH common search space of type0 overlapping with a first time domain resource location; taking the first DMRS port or the second DMRS port or the first SS/PBCH block as Transmission Configuration Indication (TCI) state information;

The above embodiments respectively describe the method of the present invention from the network device and the user equipment side, and the following embodiments will further describe their corresponding devices with reference to the accompanying drawings.

As shown in fig. 4, an embodiment of the present invention further provides a network device, where the network device may be a base station, and as shown in fig. 4, the network device includes: a processor 400 and a transceiver 410.

In this embodiment of the present invention, the network device may further include: a memory 420 connected to the processor 400 through a bus interface. The transceiver 410 is connected to the processor 400 via a bus interface. The memory 420 may store programs and data used by the processor in performing operations. The processor 400 may call and execute programs and data stored in the memory 420;

the processor 400 is configured to configure or determine the TCI state information of the transmission configuration indication for the control resource set CORESET #0 or the search space associated with CORESET # 0.

Corresponding to the foregoing implementation 1, the process 400 is specifically configured to configure TCI state information associated with CORESET #0 through high-layer signaling; alternatively, TCI status information associated with CORESET #0 is predefined; wherein the CORESET #0 is configured through the MIB.

Corresponding to the foregoing implementation 1, the process 400 may also carry TCI status information in the configuration information of the search space; or configuring TCI state information associated with the search space through high-level signaling.

Here, as a preferred mode, the TCI status information may include: at least one TCI state, wherein the TCI state includes at least one of a TCI state number, a QCL type, a reference signal type, and a reference signal number;

here, as another preferable mode, the TCI status information may be M SSB numbers, where M is a positive integer.

The at least one TCI state is N TCI states, wherein N is a positive integer, and the reference signal type corresponding to the TCI state number is SSB.

Preferably, the N, M is less than or equal to the maximum number of SSBs;

or said N, M is less than or equal to 64;

or the N and M are less than or equal to the maximum number of SSBs which can be sent by the cell where the CORESET #0 is located, wherein the maximum number of SSBs which can be sent by the cell where the CORESET #0 is located is determined according to the carrier frequency and/or the carrier interval of the cell;

or the number of the SSBs actually sent by the cell where the CORESET #0 is located is less than or equal to N, M.

Here, the transceiver 410 may be configured to indicate one of the at least one TCI status or one of the M SSB numbers to the user equipment through higher layer signaling.

Corresponding to the foregoing implementation manner 2, the processor 400 is specifically configured to obtain, according to signal measurement information on an SSB, a first SSB meeting a preset condition; determining the first SSB as the TCI status information.

Here, the preset conditions include: an SSB of at least one SSB having a largest signal strength measurement, the at least one SSB comprising: and all the continuous X signal strength measurement values are larger than the SSB of a first threshold value, the first threshold value is a preset threshold value or the signal strength measurement value of the SSB currently associated with the search space, and X is a positive integer.

Here, the value of X is predefined or configured by a network device, and when the value of X is configured by the network device, the transceiver 410 is further configured to send the value of X to a user equipment.

Corresponding to the foregoing implementation manner 3, the processor 400 is specifically configured to transmit, through higher layer signaling, configuration information of the core set #0 via the transceiver, where the configuration information of the core set #0 includes the TCI status information, and the TCI status information is applied to reception of a PDCCH associated with a UE-specific search space of the core set # 0.

Corresponding to the foregoing implementation 4, the processor 400 is specifically configured to determine, according to the configuration parameter of the search space, a first time domain resource location for detecting a PDCCH, where the PDCCH is used to schedule a unicast PDSCH; determining a PDCCH common search space of type0 overlapping with a first time domain resource location; taking the first DMRS port or the second DMRS port or the first SS/PBCH block as Transmission Configuration Indication (TCI) state information;

Where in fig. 4, the bus architecture may include any number of interconnected buses and bridges, with various circuits of one or more processors, represented by processor 400, and memory, represented by memory 420, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 410 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 400 in performing operations.

The embodiment of the network device of the present invention corresponds to the embodiment of the configuration method of the quasi co-location information, and all implementation means in the embodiment of the method are applicable to the embodiment of the network device, and the same technical effect can be achieved.

Those skilled in the art will appreciate that all or part of the steps for implementing the above embodiments may be performed by hardware, or may be instructed to be performed by associated hardware by a computer program that includes instructions for performing some or all of the steps of the above methods; and the computer program may be stored in a readable storage medium, which may be any form of storage medium.

As shown in fig. 5, the present embodiment provides a user equipment, including:

a processor 51; and a memory 53 connected to the processor 51 through a bus interface 52, wherein the memory 53 is used for storing programs and data used by the processor 51 in executing operations, and the processor 51 calls and executes the programs and data stored in the memory 53. A transceiver 54 is connected to the bus interface 52.

The processor 51 is configured to obtain the TCI state information of the transmission configuration indication of the control resource set CORESET #0 or the search space associated with CORESET # 0; and determining a reference signal and/or a quasi-co-location type quasi-co-located with a DMRS port associated with the receiving of the PDCCH according to the TCI state information.

Corresponding to the foregoing implementation 1, the processor 51 is specifically configured to receive, by a transceiver, TCI state information associated with core set #0 configured by a higher layer signaling; alternatively, TCI status information associated with CORESET #0 is predefined; wherein the CORESET #0 is configured through the MIB.

Corresponding to the foregoing implementation 1, the processor 51 may also be configured to obtain TCI status information from the configuration information of the search space; or receiving TCI state information associated with the search space, configured through higher layer signaling.

Here, the TCI status information includes: at least one TCI state, wherein the TCI state includes at least a TCI state number, a QCL type, a reference signal type, and a reference signal number; or, one of M SSB numbers, where M is a positive integer.

Here, the at least one TCI state is N TCI states, where N is a positive integer, and the reference signal type corresponding to the TCI state number is SSB.

Here, N, M is less than or equal to the maximum number of SSBs;

or said N, M is less than or equal to 64;

Preferably, the transceiver 54 is configured to receive one TCI status of the at least one TCI status indicated by a higher layer signaling, or one SSB number of the M SSB numbers.

Corresponding to the foregoing implementation mode 2, the processor 51 is specifically configured to obtain, according to signal measurement information on an SSB, a first SSB meeting a preset condition; determining the first SSB as the TCI status information.

Here, the preset conditions include: an SSB of at least one SSB having a largest signal strength measurement, the at least one SSB comprising: and all the continuous X signal strength measurement values are larger than the SSB of a first threshold value, the first threshold value is a preset threshold value or the signal strength measurement value of the SSB currently associated with the UE search space, and X is a positive integer.

Here, the value of X is predefined or configured by a network device, and when the value of X is configured by the network device, the transceiver 52 is further configured to receive the value of X sent by the network device.

Corresponding to the foregoing implementation 3, the processor 51 is specifically configured to receive, via the transceiver, configuration information of CORESET #0 sent by a higher layer signaling, where the configuration information of CORESET #0 includes the TCI status information, and the TCI status information is applied to reception of a PDCCH associated with a UE-specific search space of CORESET # 0.

Corresponding to the foregoing implementation 4, the processor 51 is specifically configured to determine, according to the configuration parameter of the search space, a first time domain resource location for detecting a PDCCH, where the PDCCH is used to schedule a unicast PDSCH; determining a PDCCH common search space of type0 overlapping with a first time domain resource location; taking the first DMRS port or the second DMRS port or the first SS/PBCH block as Transmission Configuration Indication (TCI) state information;

It should be noted that in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 51 and various circuits of memory represented by memory 53 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 54 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The user interface 55 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc. The processor 51 is responsible for managing the bus architecture and general processing, and the memory 53 may store data used by the processor 51 in performing operations.

The embodiment of the user equipment of the invention is corresponding to the embodiment of the method, all implementation means in the embodiment of the method are suitable for the embodiment of the user equipment, and the same technical effect can be achieved.

As shown in fig. 6, a communication device 60 of the present invention includes: a processor 62, a memory 63 in which a computer program is stored, which computer program, when being executed by the processor 62, is adapted to carry out the method according to the embodiments described above.

The communication device may be the core network device or the base station, or may be the terminal, and can achieve the technical effects achieved by the core network device, the base station, or the terminal. The communication device may further include: the transceiver 61 is communicatively connected to the processor 62 via a bus interface or an interface, and the transceiver 61 and the memory 63 may be communicatively connected via a bus interface or an interface. The functions of the above-described transceiver may also be implemented by a processor. The communication device of the present invention may further include other components for implementing the above method, and all the implementations in the above method embodiments are applicable to the embodiment of the communication device, so as to achieve the same technical effect.

Embodiments of the present invention also provide a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to perform the method described above. Specifically, the computer readable storage medium stores a computer program, and the computer program, when executed by the processor, implements the processes of the above-described paging method embodiment, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A configuration method of quasi-co-location information is applied to network equipment, and is characterized by comprising the following steps:

configuring or determining Transmission Configuration Indication (TCI) status information of a search space of a control resource set (CORESET # 0) or an associated CORESET #0, including: and configuring a high-level signaling to indicate the TCI state information or QCL relationship of the CORESET #0, wherein the TCI state information associated with the CORESET #0 takes the value of a predefined or configured TCI-state set.

2. The method of claim 1, wherein configuring or determining the TCI status information of the control resource set CORESET #0 comprises:

configuring TCI state information associated with CORESET #0 through high-level signaling;

alternatively, TCI status information associated with CORESET #0 is predefined;

wherein the CORESET #0 is configured through the MIB.

3. The configuration method according to claim 1, wherein configuring the TCI state information of the search space associated with CORESET #0 comprises:

TCI state information is carried in the configuration information of the search space;

or configuring TCI state information associated with the search space through high-level signaling.

4. The configuration method according to any of claims 1 to 3, wherein the TCI status information comprises:

at least one TCI state, wherein the TCI state includes at least one of a TCI state number, a QCL type, a reference signal type, and a reference signal number;

or, M SSBs are numbered, wherein M is a positive integer.

5. The configuration method according to claim 4,

the at least one TCI state is N TCI states, N is a positive integer, and the reference signal type corresponding to the TCI state number is SSB.

6. The configuration method according to claim 5,

the N, M is less than or equal to the maximum number of SSBs;

or N, M is less than or equal to 64;

7. The configuration method according to claim 4, further comprising:

and indicating one of the at least one TCI state to the user equipment through high-layer signaling, or indicating one of the M SSB numbers to the user equipment.

8. The method according to claim 1, wherein the determining the TCI status information of the search space controlling the set of resources, CORESET #0 or associated CORESET #0, comprises:

obtaining a first SSB meeting a preset condition according to signal measurement information on the SSB;

determining the first SSB as the TCI status information.

9. The configuration method according to claim 8,

the preset conditions include: an SSB of at least one SSB having a largest signal strength measurement, the at least one SSB comprising: and all the continuous X signal strength measurement values are larger than the SSB of a first threshold value, the first threshold value is a preset threshold value or the signal strength measurement value of the SSB currently associated with the search space, and X is a positive integer.

10. The configuration method according to claim 9, wherein the value of X is predefined or configured by a network device, and when the value of X is configured by the network device, the configuration method further comprises: and sending the value of the X to user equipment.

11. The method of claim 1, wherein configuring the TCI status information of the control resource set CORESET #0 comprises:

sending configuration information of CORESET #0 through high-layer signaling, wherein the configuration information of CORESET #0 comprises TCI state information, and the TCI state information is applied to receiving a PDCCH of a UE-specific search space associated with CORESET # 0.

12. The configuration method of claim 1, wherein determining the TCI state information of the CORESET #0 or the search space associated with CORESET #0 comprises:

determining a first time domain resource position for detecting a PDCCH according to the configuration parameters of the search space, wherein the PDCCH is used for scheduling a unicast PDSCH;

determining a PDCCH common search space of type0 overlapping with a first time domain resource location;

taking the first demodulation reference signal DMRS port or the second DMRS port or the first SS/PBCH block as transmission configuration indication TCI state information;

13. A method for configuring quasi-co-location information is applied to user equipment, and is characterized by comprising the following steps:

obtaining Transmission Configuration Indication (TCI) state information of a search space of a control resource set (CORESET #0 or an associated CORESET # 0); the high-level signaling is used for indicating the TCI state information or QCL relationship of the CORESET #0, and the TCI state information related to the CORESET #0 is valued in a predefined or configured TCI-state set;

and determining a reference signal and/or a quasi-co-location type quasi-co-located with a DMRS port associated with the receiving of the PDCCH according to the TCI state information.

14. The method of claim 13, wherein obtaining the TCI status information of the control resource set CORESET #0 comprises:

receiving TCI state information which is configured by a high-level signaling and is associated with CORESET # 0;

alternatively, TCI status information associated with CORESET #0 is predefined;

wherein the CORESET #0 is configured through the MIB.

15. The method of claim 13, wherein obtaining TCI state information associated with the search space of CORESET #0 comprises:

acquiring TCI state information from the configuration information of the search space;

or receiving TCI state information associated with the search space, configured through higher layer signaling.

16. The method according to any of claims 13 to 15, wherein the TCI status information comprises:

or, M SSBs are numbered, wherein M is a positive integer.

17. The configuration method according to claim 16,

18. The configuration method according to claim 17,

the N, M is less than or equal to the maximum number of SSBs;

or N, M is less than or equal to 64;

19. The method of configuring of claim 16, further comprising:

receiving one of the at least one TCI status indicated by a higher layer signaling, or one of the M SSB numbers.

20. The method of claim 13, wherein obtaining TCI state information for a search space controlling a set of resources, CORESET #0 or associated CORESET #0, comprises:

determining the first SSB as the TCI status information.

21. The configuration method according to claim 20,

the preset conditions include: an SSB of at least one SSB having a largest signal strength measurement, the at least one SSB comprising: the method comprises the steps that all X continuous signal strength measurement values are larger than SSBs with a first threshold value, the first threshold value is a preset threshold value or a signal strength measurement value of the SSBs currently associated with a UE search space, and X is a positive integer.

22. The configuration method of claim 21, wherein the value of X is predefined or configured by a network device, and when the value of X is configured by the network device, the configuration method further comprises: and receiving the value of the X sent by the network equipment.

23. The method of claim 13, wherein obtaining the TCI status information of the control resource set CORESET #0 comprises:

receiving configuration information of CORESET #0 sent by a high-layer signaling, wherein the configuration information of CORESET #0 comprises TCI state information, and the TCI state information is applied to receiving a PDCCH of a UE-specific search space associated with CORESET # 0.

24. The configuration method according to claim 13, wherein obtaining the TCI status information of the CORESET #0 or the search space associated with CORESET #0 comprises:

taking the first DMRS port or the second DMRS port or the first SS/PBCH block as Transmission Configuration Indication (TCI) state information;

25. A network device, comprising: a processor and a transceiver;

the processor is used for configuring or determining Transmission Configuration Indication (TCI) state information of a control resource set (CORESET # 0) or a search space associated with CORESET # 0;

the processor is specifically configured to configure a high-level signaling to indicate the TCI state information or QCL relationship of the CORESET #0, where the TCI state information associated with the CORESET #0 is valued in a predefined or configured TCI-state set.

26. The network device of claim 25,

the processor is specifically configured to configure TCI state information associated with CORESET #0 through a high-level signaling; alternatively, TCI status information associated with CORESET #0 is predefined;

wherein the CORESET #0 is configured through the MIB.

27. The network device of claim 25, wherein configuring the TCI state information associated with the search space of CORESET #0 comprises:

28. The network device of claim 25,

the processor is specifically configured to obtain a first SSB meeting a preset condition according to signal measurement information on the SSB; determining the first SSB as the TCI status information.

29. The network device of claim 25,

the processor is specifically configured to send, through a high-layer signaling, configuration information of the core set #0 via the transceiver, where the configuration information of the core set #0 includes the TCI status information, and the TCI status information is applied to reception of a PDCCH of a UE-specific search space associated with the core set # 0.

30. The network device of claim 25,

the processor is specifically configured to determine a first time domain resource location for detecting a PDCCH according to the configuration parameter of the search space, where the PDCCH is used to schedule a unicast PDSCH; determining a PDCCH common search space of type0 overlapping with a first time domain resource location; taking the first DMRS port or the second DMRS port or the first SS/PBCH block as Transmission Configuration Indication (TCI) state information;

31. A user equipment comprising a processor and a transceiver;

the processor is used for determining the TCI state information of the transmission configuration indication of the control resource set CORESET #0 or the search space associated with CORESET # 0; and determining a reference signal quasi co-located with the DMRS of the PDCCH according to the TCI state information, wherein a high-level signaling is used for indicating the TCI state information or QCL relation of the CORESET #0, and the TCI state information associated with the CORESET #0 takes a value in a predefined or configured TCI-state set.

32. The user equipment of claim 31,

the processor is specifically configured to receive, by a transceiver, TCI state information associated with CORESET #0 configured by a high-level signaling; alternatively, TCI status information associated with CORESET #0 is predefined;

wherein the CORESET #0 is configured through the MIB.

33. The user equipment of claim 31,

the processor is specifically configured to obtain TCI status information from the configuration information of the search space; or receiving TCI state information associated with the search space, configured through higher layer signaling.

34. The user equipment of claim 31,

35. The user equipment of claim 31,

the processor is specifically configured to receive, via the transceiver, configuration information of core set #0 sent by a high layer signaling, where the configuration information of core set #0 includes the TCI status information, and the TCI status information is applied to reception of a PDCCH associated with a UE-specific search space of core set # 0.

36. The user equipment of claim 31,

37. A communication device, comprising: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any of claims 1 to 12 or the method of any of claims 13 to 24.

38. A computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any of claims 1 to 12 or the method of any of claims 13 to 24.