CN112291849A

CN112291849A - Wireless network communication method and communication device

Info

Publication number: CN112291849A
Application number: CN201910672619.XA
Authority: CN
Inventors: 刘建琴; 薛丽霞; 戴晶
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2021-01-29
Also published as: WO2021013138A1

Abstract

The application provides a wireless network communication method and a communication device, wherein the wireless network communication method comprises the following steps: the first communication device determining first quasi co-located QCL information of a target signal; the first communication device receives the target signal according to second QCL information when the first QCL information fails. In the above technical solution, when the first QCL information of the target signal fails, the first communication device may receive the target signal according to the second QCL information, so that when the first QCL information fails, that is, when the second communication device side turns off some beams, the QCL information and the receiving behavior of the first communication device for receiving the target signal can be re-determined, thereby ensuring the accuracy of receiving the target signal.

Description

Wireless network communication method and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a wireless network communication method and a communication apparatus.

Background

With the development of communication technology, network devices and terminal devices in a communication system, such as a fifth generation mobile communication (5G) system, may perform signal transmission based on a beamforming technology, so as to overcome a large propagation loss generated in a signal transmission process.

In order to save the beam scanning time of the terminal device and achieve a power saving effect, the network device may generally send quasi-co-location (QCL) information to the terminal device, and the terminal device may determine information of a receiving beam for receiving a current signal or channel according to the QCL information.

In order to save power consumption, the network device side may only turn on the beam required by the service terminal and turn off other beams that are not required, and since the terminal device still needs to refer to the QCL information received signal configured before, one QCL corresponds to one beam, when the beam corresponding to the configured QCL information is turned off, the terminal device may not correctly receive the current signal or channel, and the accuracy of signal reception is poor.

Disclosure of Invention

The application provides a wireless network communication method and a communication device, which can improve the accuracy of signal receiving.

In a first aspect, a wireless network communication method is provided, including: the first communication device determining first quasi co-located QCL information of a target signal; the first communication device receives the target signal according to second QCL information when the first QCL information fails.

In the technical solution provided in the embodiment of the present application, when the first QCL information of the target signal fails, the first communication device may receive the target signal according to the second QCL information, so that when the first QCL information configured for the first communication device by the second communication device fails, that is, when the second communication device turns off some beams, for example, a beam corresponding to the reference signal resource index in the first QCL information or a beam used for transmitting the target signal, the QCL information and the receiving behavior of the first communication device for receiving the target signal may be re-determined, thereby ensuring the accuracy of receiving the target signal.

The first communication device in the embodiment of the present application may be a terminal device, or may be a chip device, for example, a chip device configured in a terminal device.

The second communication device in the embodiment of the present application may be a network device, or may be a chip device, for example, a chip device configured in a network device.

Taking the first communication device as a terminal device and the second communication device as a network device as an example, it should be understood that the failure of the first QCL information may be that the terminal device cannot accurately receive the target signal according to the first QCL information, and the reason why the first QCL information fails (that is, the terminal device cannot accurately receive the target signal according to the first QCL information) is that the reference of the filtering parameter of the receiving beam in the transceiving beam pair corresponding to the reference signal resource index used by the terminal device when receiving the target signal is poor. In this embodiment of the application, the reason for the failure of the first QCL information is that the network device turns off some beams, for example, the network device turns off the transmission beam in the transceiving beam pair corresponding to the reference signal resource index in the first QCL information, so that the filter parameter of the receiving beam corresponding to the reference signal resource index no longer has a reference value or has a poor reference. Also, for example, the network device turns off the beam for transmitting the target signal indicated by the first QCL information, that is, the network device does not transmit the target signal using the beam for transmitting the target signal indicated by the first QCL information, and the terminal device still receives the target signal according to the beam for transmitting the target signal indicated by the first QCL information, so that the terminal device cannot correctly receive the target signal.

In the embodiment of the present application, a "beam" may also be referred to as a "reference signal resource", and accordingly, a "beam index" may be referred to as a "reference signal resource index".

It should be noted that, in the embodiment of the present application, the QCL information may also be expressed as "beam information".

With reference to the first aspect, in one possible implementation manner, the second QCL information is predefined.

With reference to the first aspect, in a possible implementation manner, the target signal is a periodic channel state information reference signal, and the second QCL information includes any one of the following information: an index of a first synchronization signal block SSB received by the first communication device; or, a reference signal resource index in a first measurement result of the first communication device.

Taking the first communication device as a terminal device and the second communication device as a network device as an example, the index of the first synchronization signal block SSB corresponds to the filtering parameter of the terminal device when measuring based on the first synchronization signal block SSB. The synchronization signal block SSB is a basic signal for the terminal device to perform cell access, so that the beam scanning of the synchronization signal block SSB is not easily turned off, and when the beam of the network device is suddenly turned off, the terminal device may refer to the receiving filter parameter corresponding to the previous first synchronization signal block index to receive the target signal, so as to ensure that the terminal device can correctly receive the target signal.

With reference to the first aspect, in a possible implementation manner, the target signal is a physical downlink control channel PDCCH or a semi-persistent scheduling channel state information reference signal, and the second QCL information includes any one of the following information: one QCL information other than the first QCL information in a candidate QCL information set configured for the first communication device by a second communication device, wherein the candidate QCL information set comprises the first QCL information; or, an index of a first synchronization signal block SSB received by the first communication device; or, a reference signal resource index in a first measurement result of the first communication device.

With reference to the first aspect, in a possible implementation manner, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus, or a synchronization signal block reported by the first communication apparatus to the second communication apparatus.

With reference to the first aspect, in a possible implementation manner, when the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus last time.

The second QCL information includes an index of a synchronization signal block associated with the PRACH that was last transmitted by the first communication apparatus, for example, the terminal device, and the terminal device can receive the target signal according to the reception filtering parameter corresponding to the index of the synchronization signal block associated with the PRACH that was last transmitted by the terminal device, so that the accuracy of receiving the target signal can be improved.

With reference to the first aspect, in a possible implementation manner, the first measurement result is a measurement result of channel quality measurement for a first reference signal resource set, or a measurement result corresponding to a preset reference signal resource index in channel quality measurement results reported by the first communication device.

With reference to the first aspect, in a possible implementation manner, the method further includes: when the first communication device receives indication information sent by the second communication device, the first communication device determines that the first QCL information is invalid, wherein the indication information is used for indicating that the first QCL information is invalid and/or is used for indicating the second QCL information.

Optionally, the indication information for indicating that the first QCL information is invalid and the indication information for indicating the second QCL information may be carried in the same message or different messages.

Optionally, the indication information indicating that the first QCL information is invalid and the indication information indicating that the second QCL information are invalid may be transmitted simultaneously or separately.

With reference to the first aspect, in a possible implementation manner, the indication information is carried in downlink control information DCI.

With reference to the first aspect, in a possible implementation manner, the first QCL information or the second QCL information is configured by any one of the following manners: radio resource control, RRC, signaling; or, RRC signaling and media intervention control unit MAC CE signaling; or RRC signaling and downlink control information DCI signaling.

With reference to the first aspect, in a possible implementation manner, before the receiving, by the first communication device, a signal according to the second QCL information when the first QCL information fails, the method further includes: the first communication device receives the second QCL information transmitted by the second communication device.

When the first QCL information is invalid, the second communication device, for example, the network device, may reconfigure the second QCL information for the first communication device, for example, the terminal device, so that when the network device turns off some beams, it is ensured that the terminal device may receive the target signal according to the QCL hypothesis corresponding to other effective beams, and further, the accuracy of receiving the target signal is ensured.

With reference to the first aspect, in a possible implementation manner, the second QCL information is carried in a downlink control information DCI signaling or a media access control element MAC CE signaling.

In a second aspect, a wireless network communication method is provided, including: when the first QCL information of the target signal fails, the first communication device determines second QCL information; the first communication device receives the target signal according to the second QCL information.

In the technical solution provided in the embodiment of the present application, when the first QCL information of the target signal fails, the first communication device may determine the second QCL information, and receive the target signal according to the second QCL information, so that when the first QCL information configured for the first communication device by the second communication device fails, that is, when the second communication device side turns off some beams, for example, a beam corresponding to the reference signal resource index in the first QCL information or a beam used for transmitting the target signal, the QCL information and the receiving behavior of the target signal received by the first communication device may be re-determined, thereby ensuring the accuracy of receiving the target signal.

With reference to the second aspect, in one possible implementation manner, the second QCL information is predefined.

With reference to the second aspect, in a possible implementation manner, the target signal is a periodic channel state information reference signal, and the second QCL information includes any one of the following information: an index of a first synchronization signal block SSB received by the first communication device; or, a reference signal resource index in a first measurement result of the first communication device.

With reference to the second aspect, in a possible implementation manner, the target signal is a physical downlink control channel PDCCH or a semi-persistent scheduling channel state information reference signal, and the second QCL information includes any one of the following information: one of a set of candidate QCL information configured for the first communication device by the second communication device, other than the first QCL information, wherein the set of candidate QCL information includes the first QCL information; or, an index of a first synchronization signal block SSB received by the first communication device; or, a reference signal resource index in a first measurement result of the first communication device.

With reference to the second aspect, in a possible implementation manner, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus, or a synchronization signal block reported by the first communication apparatus to the second communication apparatus.

With reference to the second aspect, in a possible implementation manner, when the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus last time.

With reference to the second aspect, in a possible implementation manner, the first measurement result is a measurement result of channel quality measurement for a first reference signal resource set, or a measurement result corresponding to a preset reference signal resource index in channel quality measurement results reported by the first communication device.

With reference to the second aspect, in a possible implementation manner, the method further includes: when the first communication device receives indication information sent by the second communication device, the first communication device determines that the first QCL information is invalid, wherein the indication information is used for indicating that the first QCL information is invalid and/or is used for indicating the second QCL information.

Optionally, the indication information for indicating that the first QCL information is invalid and the indication information for indicating that the second QCL information are carried in the same message or different messages.

With reference to the second aspect, in a possible implementation manner, the indication information is carried in downlink control information DCI.

With reference to the second aspect, in a possible implementation manner, the first QCL information or the second QCL information is configured by any one of the following manners: radio resource control, RRC, signaling; or, RRC signaling and media intervention control unit MAC CE signaling; or RRC signaling and downlink control information DCI signaling.

With reference to the second aspect, in a possible implementation manner, before the determining, by the first communication apparatus, the second QCL information, the method further includes: the first communication device receives the second QCL information transmitted by the second communication device.

With reference to the second aspect, in a possible implementation manner, the second QCL information is carried in a downlink control information DCI signaling or a media access control element MAC CE signaling.

In a third aspect, a wireless network communication method is provided, including: the second communication device configures first quasi-co-located QCL information of a target signal for the first communication device; when the first QCL information fails, the second communication device instructs the first communication device to receive the target signal according to second QCL information.

In the technical solution provided in the embodiment of the present application, when the first QCL information of the target signal fails, the first communication device may receive the target signal according to the second QCL information, so that when the QCL information configured by the second communication device fails, that is, when the second communication device side turns off some beams, for example, a beam corresponding to the reference signal resource index in the first QCL information or a beam used for transmitting the target signal, the QCL information and the receiving behavior of the first communication device for receiving the target signal may be re-determined, thereby ensuring the accuracy of receiving the target signal.

With reference to the third aspect, in one possible implementation manner, the second QCL information is predefined.

With reference to the third aspect, in a possible implementation manner, the target signal is a periodic channel state information reference signal, and the second QCL information includes any one of the following information: an index of a first synchronization signal block SSB received by the first communication device; alternatively, the first communication device may be configured to determine an index of a reference signal in the first measurement.

With reference to the third aspect, in a possible implementation manner, the target signal is a physical downlink control channel PDCCH or a semi-persistent scheduling channel state information reference signal, and the second QCL information includes any one of the following information: one of a set of candidate QCL information configured for the first communication device by the second communication device, other than the first QCL information, wherein the set of candidate QCL information includes the first QCL information; or, an index of a first synchronization signal block SSB received by the first communication device; alternatively, the first communication device may be configured to determine an index of a reference signal in the first measurement.

With reference to the third aspect, in a possible implementation manner, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus, or a synchronization signal block reported by the first communication apparatus to the second communication apparatus.

With reference to the third aspect, in a possible implementation manner, when the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus last time.

With reference to the third aspect, in a possible implementation manner, the first measurement result is a measurement result of channel quality measurement for a first set of reference signal resources, or a measurement result corresponding to a preset reference signal resource index in channel quality measurement results reported by the first communication device.

With reference to the third aspect, in a possible implementation manner, the indicating, by the second communication device, the second QCL information to the first communication device includes: the second communication device sends indication information to the first communication device, wherein the indication information is used for indicating that the first QCL information is invalid and/or indicating the second QCL information.

With reference to the third aspect, in a possible implementation manner, the indication information is carried in downlink control information DCI.

With reference to the third aspect, in a possible implementation manner, the first QCL information or the second QCL information is configured by any one of the following manners: radio resource control, RRC, signaling; or, RRC signaling and media intervention control unit MAC CE signaling; or RRC signaling and downlink control information DCI signaling.

With reference to the third aspect, in a possible implementation manner, the indicating, by the second communication device, the second QCL information to the first communication device includes: the second communication device transmits the second QCL information to the first communication device.

With reference to the third aspect, in a possible implementation manner, the second QCL information is carried in downlink control information DCI signaling or media access control element MAC CE signaling.

In a fourth aspect, a communication device is provided, which includes a module or a unit for performing a one-to-one correspondence of the method/operation/step/action described in the method in the first aspect or any one of the possible implementation manners of the first aspect; or the apparatus includes a module or a unit corresponding to one-to-one for performing the method/operation/step/action described in the method in any possible implementation manner of the second aspect, and the module or unit may be a hardware circuit, a software circuit, or a combination of a hardware circuit and a software circuit.

Alternatively, the communication device may be a terminal device or a chip device, and the chip device may be a chip device configured in the terminal device.

In a fifth aspect, a communication apparatus is provided, which includes a module or a unit corresponding to one for performing the method/operation/step/action described in the method in any possible implementation manner of the third aspect or the third aspect, and the module or the unit may be a hardware circuit, or may be software, or may be implemented by a hardware circuit in combination with software.

Alternatively, the communication device may be a network device or a chip device, and the chip device may be a chip device configured in the network device.

In a sixth aspect, a communication apparatus is provided, which may be the first communication apparatus in the above method design, for example, the communication apparatus is a terminal device or a chip disposed in the terminal device. The communication device includes: a processor, coupled to the memory, and configured to execute the instructions in the memory to implement the method performed by the first communication apparatus in the first aspect and any one of its possible implementations, or the method performed by the first communication apparatus in the second aspect and any one of its possible implementations. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

When the communication device is a chip configured in a terminal device, the communication interface may be an input/output interface.

In a seventh aspect, a communication apparatus is provided, which may be the second communication apparatus in the method design, where the second communication apparatus is a network device or a chip disposed in the network device. The communication device includes: a processor, coupled to the memory, and configured to execute the instructions in the memory to implement the method performed by the second communication device in the third aspect and any one of the possible implementations thereof. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

When the communication device is a network device, the communication interface may be a transceiver, or an input/output interface.

When the communication device is a chip configured in a network device, the communication interface may be an input/output interface.

In an eighth aspect, there is provided a communication apparatus comprising: a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transceive signals, the memory is configured to store a computer program, and the processor is configured to retrieve from the memory and execute the computer program, to cause the communication apparatus to perform the method of the first aspect or any of the possible implementations of the first aspect, or to cause the communication apparatus to perform the method of the second aspect or any of the possible implementations of the second aspect.

In a ninth aspect, there is provided a communication apparatus, comprising: a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transceive signals, the memory is configured to store a computer program, and the processor is configured to retrieve and execute the computer program from the memory, so that the communication apparatus executes the method of the third aspect or any possible implementation manner of the third aspect.

A tenth aspect provides a computer-readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method of the first aspect or any one of the possible implementations of the first aspect; or cause a computer to perform a method as described in the second aspect or any one of the possible implementations of the second aspect.

In an eleventh aspect, a computer-readable storage medium is provided, in which instructions are stored, which when executed on a computer, cause the computer to perform the method of the third aspect or any possible implementation manner of the third aspect.

In a twelfth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect or any one of the possible implementations of the first aspect; or cause a computer to perform a method as described in the second aspect or any one of the possible implementations of the second aspect.

In a thirteenth aspect, there is provided a computer program product comprising instructions for causing a computer to perform the method of the third aspect or any of its possible implementations when the computer program product runs on a computer.

In a fourteenth aspect, a communication system is provided, comprising the first communication device and the second communication device above.

Optionally, the first communication device is a terminal device or a chip device configured in the terminal device, and the second communication device is a network device or a chip device configured in the network device.

Drawings

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application;

fig. 2 is a schematic diagram of a downlink signal transmission process;

FIG. 3 is a schematic flow chart diagram of a wireless network communication method of one embodiment of the present application;

fig. 4 is a schematic flow chart diagram of a wireless network communication method of another embodiment of the present application;

FIG. 5 is a schematic block diagram of an apparatus provided in one embodiment of the present application;

FIG. 6 is a schematic block diagram of a communication device provided in one embodiment of the present application;

FIG. 7 is a schematic block diagram of an apparatus provided in another embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication apparatus according to another embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, fifth generation (5G) or new radio NR (new generation) systems, and the like.

Fig. 1 shows a schematic diagram of an application scenario of an embodiment of the present application. As shown in fig. 1, the application scenario may include a network device 110 and a terminal device 120.

The network device 110 in this embodiment may be a device for communicating with the terminal device 120, for example, the network device 110 may be a base station for accessing the terminal device 120 to a Radio Access Network (RAN). For convenience of understanding, the embodiment of the present application takes the network device 110 as an example for description. A base station may also sometimes be referred to as an access network device or an access network node. It will be appreciated that in systems employing different radio access technologies, the names of devices that function as base stations may differ. For convenience of description, the apparatuses providing a wireless communication access function for a terminal device are collectively referred to as a base station in the embodiments of the present application. For example, the network device 110 may be an evolved node B (eNB or eNodeB) in a Long Term Evolution (LTE), a next generation base station (gNB) in a fifth generation mobile communication (5G) system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a Transmission and Reception Point (TRP), or the network device 110 may be a relay station, an access point, a vehicle-mounted device, a network device in a 5G network, or a network device in a future evolved PLMN network, and the like, and the embodiments of the present application are not limited thereto. The network device 110 may be a macro base station or a micro base station. A network device 110 may include one cell or a plurality of cells within its coverage area.

The terminal device 120 in this embodiment may communicate with one or more Core Networks (CNs) through an access network device. Terminal equipment 120 may also be referred to as User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless network device, a user agent, or a user device. The terminal device 120 may be a cellular phone (cellular phone), a cordless phone, a Session Initiation Protocol (SIP) phone, a smart phone (smart phone), a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other device connected to a wireless modem, a vehicle-mounted device, a wearable device, a drone device or internet of things, a terminal in a vehicle network and any form of terminal in a future network, a relay user equipment or a terminal in a future evolved Public Land Mobile Network (PLMN), and the like. The embodiments of the present application do not limit this. For convenience of description, in the embodiment of the present application, the terminal device 120 is taken as an example for explanation.

The network device 110 and the terminal device 120 may perform transmission of uplink and downlink signals through a transmission link therebetween, where the transmission link from the network device 110 to the terminal device 120 may be referred to as a downlink (downlink), and the transmission link from the terminal device 120 to the network device 110 may be referred to as an uplink (uplink). Network device 110 may send downlink data to terminal device 120 through a downlink, and accordingly, terminal device 120 receives the downlink data sent by network device 110 through the downlink; terminal device 120 may transmit uplink data to network device 110 via an uplink, and accordingly, network device 110 receives the uplink data transmitted by terminal device 120 via the uplink.

The embodiment of the application can be applied to a wireless communication system, such as a 5G system. In an application scenario of the embodiment of the present application, the terminal device 120 may include one or more terminal devices. Illustratively, in the application scenario of fig. 1, the terminal device 120 includes UE #1, UE #2, UE #3, UE #4, UE #5, and UE # 6. It should be understood that the number of terminal devices 120 shown in fig. 1 is merely exemplary, and in some other embodiments, the number of terminal devices 120 may be 1,2, 4, 8, or even more. Taking fig. 1 as an example, the network device 110 and the UEs #1 to #6 may form a communication system, in which the UEs #1 to #6 may transmit uplink information or data to the network device 110, and the network device 110 needs to receive the uplink information or data transmitted by the UEs #1 to # 6; the network device 110 may transmit downlink information or data to the UE #1 to the UE #6, and the UE #1 to the UE #6 need to receive the downlink information or data transmitted to the network device 110. In addition, some UEs of UE #1 to UE #6 may form a communication system, for example, UE #4 to UE #6 may form a communication system, and in the entire communication system, the network device 110 may transmit downlink information or data to UE #1, UE #2, UE #3, UE #5, and the like, and UE #5 may also transmit downlink information or data to UE #4, UE #6, and the like; accordingly, UE #4 and UE #6 may transmit uplink information or data to UE #5, and UE #1, UE #2, UE #3, UE #5, etc. may also transmit uplink information or data to network device 110.

In the process of spatial propagation of the uplink and downlink signals transmitted between the network device 110 and the terminal device 120, the quality of the wireless signal may be degraded, and this degradation phenomenon is referred to as "path-loss". The path loss has a great influence on a communication system, and particularly, for a millimeter wave (mmWave) communication system (e.g., a 5G communication system), the signal attenuation caused by the high path loss characteristic of the millimeter wave may cause the system to fail to work properly. In order to overcome the large propagation loss generated in the signal transmission process, a signal transmission mechanism based on a beamforming (beamforming) technology may be introduced, and the path loss may be effectively resisted by utilizing the directionality of a beam, where the beamformed signal may include a broadcast signal, a synchronization signal, a UE-specific reference signal, and the like.

Fig. 2 shows a schematic diagram of a signal transmission process based on the beamforming technology. As shown in fig. 2, the network device 110 side may configure a large-scale antenna (massive MIMO) array, for example, 64, 128, 256, or 1024 antennas or other number of antennas may be configured, and the multi-antenna communication may improve transmission quality of wireless signals. The beamforming technology is a signal processing technology used for directional signal transmission or reception in a sensor array, and can effectively superpose signals by adjusting the phase of each antenna to generate stronger signal gain to compensate the loss in the signal propagation process, thereby providing guarantee for the transmission quality of wireless signals. The beamforming technique may also be applied to the terminal device 120 side, that is, the terminal device 120 side may also configure an antenna array. Taking the downlink procedure as an example, the network device 110 may transmit wireless signals to different directions using beams with different orientations, such as

beams

111, 112, 113, 114 and 115, to cover the cell it serves, and the terminal device 120 may receive signals using beams with different orientations, such as

beams

121, 122 and 123. In some embodiments, in order to save power consumption, considering sparsity of utilizing spatial channels, the network device side may turn on only beams having a serving terminal device, and turn off other unnecessary beams. It should be understood that the number of beams on the network device side and the number of beams on the terminal device side recited in the embodiments of the present application are merely illustrative, and do not cause any limitation to the embodiments of the present application.

It should be understood that, in the embodiments of the present application, the term "wireless communication" may also be simply referred to as "communication", and the term "communication" may also be described as "data transmission", "signal transmission", "information transmission", or "transmission", etc. In embodiments of the present application, the transmission may comprise sending or receiving. For example, the transmission may be an uplink transmission, for example, the terminal device may send a signal to the network device; the transmission may also be downlink transmission, for example, the network device may send a signal to the terminal device.

Both the network device 110 and the terminal device 120 may use beams with different orientations for signal transmission or reception, but generally, the network device 110 and the terminal device 120 usually use N better-communication Beam Pairs (BPLs) selected in the beam training process for data transmission, where one BPL includes one transmission beam on the network device side and one reception beam on the terminal device side, or one BPL includes one transmission beam on the terminal device side and one reception beam on the network device side. It should be understood that, in the embodiment of the present application, the beam on the network device side/terminal device side may be a transmission beam or a reception beam, when the network device/terminal device side is used as a transmitting end, the beam on the network device side/terminal device side may be referred to as a transmission beam or a transmission beam, and when the network device/terminal device side is used as a receiving end, the beam on the network device side/terminal device side may be referred to as a reception beam. In other words, in the downlink process, the beam on the network device side may be referred to as a transmission beam and the beam on the terminal device side may be referred to as a reception beam, and in the uplink process, the beam on the network device side may be referred to as a reception beam and the beam on the terminal device side may be referred to as a transmission beam. In other words, the beam at the transmitting end may be referred to as a transmitting beam, and the beam at the receiving end may be referred to as a receiving beam, where the transmitting end may be a network device or a terminal device, and correspondingly, the receiving end may be a terminal device or a network device.

The selection process of the N beam pairs with better communication can be understood as a channel quality measurement process based on reference signal resources of different beams, wherein the measurement of the channel quality can be performed based on the beamformed synchronization signals or UE-specific reference signals. The network device side may use different transmit beams to transmit reference signals (this process may be referred to as beam scanning at the network device side), and accordingly, the terminal device side may use different receive beams to receive reference signals; the terminal device side may also transmit reference signals using different transmit beams (this process may be referred to as beam scanning at the terminal device side), and accordingly, the network device side may receive reference signals using different receive beams. The terminal device can select the transmitting beam at the network device side and/or the receiving beam at the terminal device side based on the beam scanning at the network device side, and the network device can select the transmitting beam at the terminal device side and/or the receiving beam at the network device side based on the beam scanning at the terminal device side, so that N beam pairs with better communication can be obtained. Further, the beam training process also includes updates to the transmit beams and updates to the receive beams.

The updating of the transmission beam may be updating of the transmission beam on the network device side, or updating of the transmission beam on the terminal device side. For example, when the transmission beam is a transmission beam on the network device side, the network device may transmit reference signals to the terminal device based on different transmission beams (this process may be referred to as beam scanning on the network device side), the terminal device receives the reference signals transmitted by the network device based on different transmission beams through the same reception beam, and determines an optimal transmission beam of the network device based on the reception signals (this process may be referred to as beam matching), and then feeds back the optimal transmission beam of the network device to the network device, so that the network device updates the transmission beam. When the transmission beam is a transmission beam on the terminal device side, the terminal device may transmit reference signals to the network device based on different transmission beams (this process may be referred to as beam scanning on the terminal device side), the network device receives the reference signals transmitted by the terminal device based on different transmission beams through the same reception beam, and determines an optimal transmission beam of the terminal device based on the reception signals (this process may be referred to as beam matching), and then indicates the optimal transmission beam of the terminal device to the terminal device, so that the terminal device updates the transmission beam.

It should be noted that, in the update process of the transmission beam in the embodiment of the present application, a process in which the receiving end receives the reference signal may be understood as a process in which the receiving end measures different transmission beams sent by the transmitting end (the process may be referred to as beam measurement or beam channel quality measurement), an obtained measurement result is beam measurement information (or Beam State Information (BSI)), and the receiving end may report the obtained one or more better beam measurement information to the transmitting end. For example, if the receiving end is a terminal device and the transmitting end is a network device, the terminal device may send one or more better measurement results obtained in the beam measurement process to the network device through a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH). The beam measurement information may include at least one of a beam index, a Reference Signal Receiving Power (RSRP) of the beam, a Reference Signal Receiving Quality (RSRQ) of the beam, a Channel Quality Indication (CQI), and the like.

The update of the reception beam may be an update of a reception beam on the network device side, or an update of a reception beam on the terminal device side. For example, when the receiving beam is a receiving beam on the network device side, the terminal device sends a reference signal to the network device based on the same transmitting beam, the network device receives the reference signal sent by the terminal device by using different receiving beams, and then determines an optimal receiving beam of the network device based on the receiving signal, so as to update the receiving beam of the network device. When the receiving beam is a receiving beam on the side of the terminal device, the network device sends a reference signal to the terminal device based on the same transmitting beam, the terminal device receives the reference signal sent by the network device by adopting different receiving beams, and then determines the optimal receiving beam of the terminal device based on the receiving signal so as to update the receiving beam of the terminal device.

The beamforming technique can focus the energy of the wireless signal to form a directional beam (beam) to concentrate the energy of the signal in the direction of the receiving end, as described above, the beam has directivity, and different beams may have different transmitting directions. Once the beam direction deviates from the receiving end or the user moves, the direction of the shaped beam corresponding to the transmission signal may not match the position of the user after the movement, so that the receiving end may not receive a high-quality wireless signal or the received signal is frequently interrupted, or if there is shielding in the communication process, the beam currently served is blocked due to poor diffraction capability of the high-frequency channel, so that the signal cannot be continuously transmitted. Therefore, during the signal transmission process, dynamic measurement reporting is also performed to track the change of the shaped beam.

Taking a downlink signal transmission process as an example, a transmission beam at a network device side and a reception beam at a terminal device side may both dynamically change, and as mentioned above, in a beam training process, the network device and the terminal device obtain N beam pairs with better communication. The quasi-co-location (QCL) information (which may also be referred to as QCL hypothesis, QCL hypothesis information, or co-location hypothesis in the embodiment of the present application) in the embodiment of the present application may be used to assist in describing the beamforming information received and the receiving process at the terminal device side.

For ease of understanding, the concept of QCL is briefly introduced below.

In a coordinated multiple point (CoMP) communication mode, signals may come from different transmission points (TRPs), and in order to ensure correct reception and demodulation of the signals, a concept of an antenna port quasi-co-located QCL is introduced in an LTE system. If two antenna ports are considered QCL, then the channel scale information for one antenna port can be inferred from the channel scale information for the other antenna port; conversely, if both antenna ports are indicated to be non-QCL, then the terminal device may not assume that the channel scale information for one of the antenna ports may be inferred from the channel scale information for the other antenna port. Wherein, the channel large scale information comprises: channel average gain (average gain), doppler spread (doppler spread), doppler shift (doppler shift), average delay (average delay), delay spread (delay spread), and the like. For example, when the QCL relationship is satisfied between antenna port a and antenna port B, it means that the channel large-scale characteristic parameters (i.e., the above-mentioned channel large-scale information) estimated from the signal at antenna port a are also suitable for the signal at antenna port B.

In a 5G communication system, a single transmission point TRP will also configure a multi-panel large-scale antenna array structure, which will result in different large-scale information for different beams formed by different antenna panels. When the network device sends a signal to the terminal device through a beam or the terminal device uploads a signal to the network device through a beam, different signals may use different logical antenna ports, for example, a channel state information reference signal (CSI-RS) antenna port transmits a CSI-RS, a demodulation reference signal (DMRS) antenna port transmits a DMRS, and when channel large-scale information of two antenna ports is QCL (or satisfies a QCL relationship), it is considered that a beam used for transmitting a reference signal of one antenna port can also be used for transmitting a reference signal of the other antenna port. The large-scale information of the beam includes parameters characterizing spatial features, such as angle of arrival or angle of arrival (AoA), main angle of incidence (dominant AoA), average angle of incidence, power angle spectrum of incidence (PAS), emergence angle or launch angle (AoD), main emergence angle, average emergence angle, power angle spectrum of emergence angle, terminal transmit beamforming, terminal receive beamforming, spatial channel correlation, base station transmit beamforming, base station receive beamforming, and spatial receive parameters (spatial Rx parameters), in addition to the delay spread, doppler shift, channel average gain, and average delay mentioned above.

It should be noted that an antenna port refers to a logical port for transmission, which may correspond to one or more actual physical antennas. The definition of the antenna port is defined from the perspective of the receiver, i.e. if the receiver needs to distinguish the spatial differences of the resources, multiple antenna ports need to be defined. For a terminal device, a reference signal received by the terminal device corresponding to a certain antenna port defines the corresponding antenna port, although the reference signal may be a composite of signals transmitted by multiple physical antennas. In the embodiment of the present application, if the network device indicates that the two antenna ports of the terminal device are related to a certain large-scale information QCL characterizing the beam space, the channel space characteristic parameter of one antenna port can be inferred from the channel space characteristic parameter of the other antenna port, and it can be shown that the terminal device/network device receives the reference signals through the two antenna ports using the same receiving beam or the terminal device/network device transmits the reference signals through the two antenna ports using the same transmitting beam.

In the embodiment of the present application, a "beam" at the transmitting end may also be referred to as a "reference signal resource", and accordingly, a "beam index" may be referred to as a "reference signal resource index (RS index)".

For example, the network device may indicate that a demodulation reference signal (DMRS) of a Physical Downlink Control Channel (PDCCH) or a Physical Downlink Shared Channel (PDSCH) of the terminal device and one or more of a plurality of reference signal resources reported by the terminal device before satisfy a QCL relationship, for example, the reference signal may be a CSI-RS, and the reference signal resource reported by the terminal device may be a CSI-RS resource (actually, the reference signal reported by the terminal device may be a CSI-RS resource index). Each CSI-RS resource index reported by the terminal device corresponds to a transmit-receive beam pair (i.e. a BPL) previously established based on the CSI-RS resource measurement, since the receive beam information of two reference signals or channels satisfying the QCL relationship is the same, therefore, when the network device indicates that the demodulation reference signal of the PDCCH or PDSCH and one or more CSI-RS resources reported by the terminal device before satisfy the QCL relationship, the network device may transmit QCL information of a demodulation reference signal of the PDCCH or PDSCH to the terminal device, the QCL information comprises a CSI-RS resource index reported by the terminal equipment before, the terminal equipment can deduce the receiving beam information for receiving PDCCH or PDSCH based on the CSI-RS resource index, that is, the terminal device determines that the received beam information for receiving the PDCCH or PDSCH is the same as the received beam information in the beam pair corresponding to the CSI-RS resource index included in the QCL information. In other words, the terminal device may determine to receive the PDCCH or PDSCH using a reception beam in a beam pair corresponding to the CSI-RS resource index based on the CSI-RS resource index; or, after receiving the QCL information sent by the network device, the terminal device may understand that the network device side transmission beam of the CSI-RS is also used for sending a demodulation reference signal of the PDCCH or PDSCH, so that the PDCCH or PDSCH is received using the same reception beam as the CSI-RS port. On the other hand, when the network device indicates that the demodulation reference signal of the PDCCH or PDSCH and one or more CSI-RS resources reported by the terminal device before satisfy the QCL relationship, the network device may send QCL information of the demodulation reference signal of the PDCCH or PDSCH to the terminal device, where the QCL information is understood to be used for instructing the terminal device to determine filter parameters of the demodulation reference signal of the PDCCH or PDSCH received by the terminal device, and specifically, the QCL information may include a CSI-RS resource index reported by the terminal device before, the CSI-RS resource index reported by the terminal device corresponds to the received filter parameters obtained by the terminal device based on CSI-RS resource measurement, and the terminal device may determine that the filter parameters of the demodulation reference signal used by the terminal device to receive the PDCCH or PDSCH are the same as the filter parameters of the CSI-RS received by the terminal device before according to the CSI-RS resource index (i.e., the QCL information) indicated by the network device, i.e. the receive beam information is the same. In the embodiment of the present application, QCL information may also be expressed as "beam information", and the meaning of both expressions is the same unless otherwise specified.

For example, in a specific implementation, when a receiving beam received by a terminal device for a first reference signal (for example, the first reference signal is DMRS) is the same as one receiving beam in a plurality of transceiving beam pairs measured based on a second reference signal (for example, the second reference signal is CSI-RS) reported by the terminal device, QCL information sent by a network device to the terminal device may include at least one of a beam group index number of the second reference signal reported by the terminal device, a resource index number of the second reference signal, a port group number of the second reference signal, and a port number of the second reference signal, where the second reference signal corresponds to one BPL in the plurality of transceiving beam pairs measured based on the second reference signal reported by the terminal device. In this embodiment of the application, the beam group index of the second reference signal reported by the terminal device may be understood as a resource set index of the second reference signal reported by the terminal device. The resource index of the second reference signal reported by the terminal device may be understood as a relative index based on a plurality of resource index sets reported by the terminal device. For example, if the terminal device reports the absolute resource index {1,5,7,9} of 4 second reference signals, the relative resource index of the second reference signal is any one of {0,1,2,3} based on the reporting result of the terminal device. Wherein, the relative resource index 0 corresponds to the resource index 1 of the second reference signal reported by the terminal device, the relative resource index 1 corresponds to the resource index 5 of the second reference signal reported by the terminal device, the relative resource index 2 corresponds to the resource index 7 of the second reference signal reported by the terminal device, and the relative resource index 3 corresponds to the resource index 9 of the second reference signal reported by the terminal device. The spatial characteristic parameters included in the QCL information describe spatial channel characteristics between antenna ports of the first reference signal and the second reference signal, so that the terminal device can complete beamforming or receiving processing at a receiving side according to the QCL information.

The QCL information of the signal or channel is usually carried in signaling sent by the network device to the terminal device and indicated to the terminal device, and the QCL information is configured in different manners for different types of signals or channels. Taking PDCCH, periodic channel state information reference signal (abbreviated as periodic CSI-RS) and semi-persistent scheduling channel state information reference signal (abbreviated as semi-persistent scheduling CSI-RS) as an example, QCL information for the above three types of signals or channels in the current communication protocol standard is indicated to the terminal device by means of display signaling.

For example, for the PDCCH, QCL information of the PDCCH is configured by Radio Resource Control (RRC) signaling and medium access control element (MAC CE) signaling. Specifically, the network device may configure one or more control resource sets (core sets) for the terminal device to transmit the PDCCH. The network device may send a control channel to the terminal device on any control resource set corresponding to the terminal device, and the terminal device receives the PDCCH sent to itself through a blind detection control channel in a search space associated with the control resource set. The control resource set COREST is used for bearing time-frequency resources of a control channel PDCCH, one COREST corresponds to one QCL information, therefore, when the network equipment configures the COREST for the terminal equipment, K (K is more than or equal to 1 and K is an integer) candidate QCL information of the PDCCH is configured, the K candidate QCL information can be configured through RRC signaling, and under the condition that K is more than 1, the network equipment can further indicate the QCL information of the PDCCH through MAC CE signaling.

For another example, for the periodic CSI-RS, the QCL information of the periodic CSI-RS may be configured through RRC signaling. For the semi-persistent scheduling CSI-RS, the QCL information of the semi-persistent scheduling CSI-RS may be configured through RRC signaling and MAC CE signaling, wherein the MAC CE signaling configuring the semi-persistent scheduling CSI-RS may be the same as the MAC CE signaling or message activating the semi-persistent scheduling CSI-RS.

The foregoing only shows the configuration manners of the QCL information of three types of signals or channels by way of example, and specific implementations also include configuration manners of the QCL information of other types of signals or channels, which are not listed here. The configuration modes of the QCL information of several types of signals or channels include semi-static configuration, which means that the terminal device receives signals or channels according to the QCL information configured in the semi-static configuration mode for a long period of time. However, it is mentioned above that the QCL information indicates that the terminal device refers to the information of the previous receiving beam for receiving the reference signal to receive the current signal or channel, that is, the QCL information indicates that the terminal device determines the receiving beam information for receiving the current signal or channel according to the reference signal resource index, but when the network device turns off some beams, the terminal device may not transmit and receive signals according to the receiving beam or the receiving filter parameter corresponding to the reference signal resource index indicated in the QCL information, or the network device side does not transmit the current signal or channel using the transmitting beam having the QCL relationship with the reference signal indicated in the QCL information, so that the terminal device may not obtain the accurate receiving beam information for receiving the current signal or channel (i.e., the terminal device may not determine the QCL information of the signal or channel), if the terminal device still receives the current signal or channel according to the QCL information configured in the semi-static configuration manner, it may result in the terminal device not being able to correctly receive the signal or channel currently transmitted by the network device.

Therefore, it is desirable to provide a method capable of determining QCL information of a terminal device or determining a receiving behavior of the terminal device to ensure accuracy of signal reception, and the embodiment of the present application is described in detail below with reference to fig. 3.

It should be noted that the operations performed by the terminal device described above may also be performed by a chip apparatus, for example, the chip apparatus is a chip apparatus configured in the terminal device; the operations performed by the network device described above may also be performed by a chip apparatus, for example, the chip apparatus is configured in the network device. For convenience of description, in the embodiments of the present application, a terminal device and a chip apparatus and the like that perform the same operations as the terminal device are referred to as a first communication apparatus, and a network device and a chip apparatus and the like that perform the same operations as the network device are referred to as a second communication apparatus.

Fig. 3 shows a schematic flow chart of a wireless network communication method of an embodiment of the present application. The method 300 of fig. 3 may be performed by a first communication device. The first communication means may be, for example, the terminal device 120 shown in fig. 1 or fig. 2. The method 300 may include steps S310 through S340.

In step S310, the second communication device configures the first communication device with the first quasi-co-located QCL information of the target signal.

The first communication device may be a terminal device or a chip device, the chip device may be a chip device configured in the terminal device, the second communication device may be a network device or a chip device, and the chip device may be a chip device configured in the network device. For convenience of understanding, in the embodiments of the present application, a first communication device is taken as a terminal device, and a second communication device is taken as a network device for example.

The first quasi co-located QCL information is used to indicate beam information of a target signal received by a first communication apparatus, for example, a terminal device, and for example, the first QCL information may indicate a receiving filter parameter when the terminal device receives the target signal, and the like. Illustratively, the first QCL information includes one or more reference signal resource indexes reported previously by the terminal device, each reference signal resource index of the one or more reference signal resource indexes corresponds to a transmit-receive beam pair BPL established by the terminal device based on the reference signal resource measurement, wherein each reference signal resource index corresponds to one BPL, and each BPL includes one receive beam or receive filtering parameter information. The terminal device may consider, according to the first QCL information, that a receiving filtering parameter of the target signal received by the terminal device is the same as a receiving filtering parameter when the terminal device previously receives a reference signal corresponding to the reference signal resource index, which is equivalent to that the terminal device may indirectly obtain the receiving filtering parameter of the target signal according to the reference signal resource index in the first QCL information. In some embodiments, the first QCL information configured for the terminal device by the network device may also be understood as receiving beam information indicating that the terminal device is used for receiving the target signal by the network device.

The target signal in this embodiment may be a signal or a channel, for example, a physical downlink control channel PDCCH, a periodic channel state information reference signal (periodic CSI-RS), a semi-persistent scheduling channel state information reference signal (semi-persistent scheduling CSI-RS), and other signals or channels, such as a synchronous broadcast channel block, an aperiodic CSI-RS, a broadcast-type physical downlink shared channel, and the like. The QCL information of different types of target signals is configured differently, and the QCL information of the target signal in this embodiment of the present application includes a semi-static configuration, such as a radio resource control RRC signaling configuration.

In step S320, the first communication device determines first quasi-co-located QCL information of the target signal.

For different types of target signals, the first QCL information of the target signal is configured differently, and accordingly, the first communication apparatus, e.g., a terminal device, determines the first QCL information of the target signal differently.

As an example, the target signal may be a PDCCH, and the first QCL information of the target signal (i.e., the first QCL information of the PDCCH) may be configured through RRC signaling and MAC CE signaling. For example, a second communication device, such as a network device, configures a set of candidate QCL information for a target signal via RRC signaling, the set of candidate QCL information including a plurality of candidate QCL information; the network device indicates, through MAC CE signaling, that one of the candidate QCL information is the first QCL information of the target signal, that is, the first QCL information of the target signal is one of the candidate QCL information.

As another example, the target signal may be a periodic CSI-RS, and the first QCL information of the target signal (i.e., the first QCL information of the periodic CSI-RS) may be configured through RRC signaling. The terminal device may determine the first QCL information of the target signal according to the configuration information in the RRC signaling.

As yet another example, the target signal may be a semi-persistent scheduling CSI-RS, and the first QCL information of the target signal (i.e., the first QCL information of the semi-persistent scheduling CSI-RS) may be configured through RRC signaling and MAC CE signaling. The terminal device may determine the first QCL information of the target signal according to configuration information in the RRC signaling and the MAC CE signaling.

In other words, in step S320, the terminal device may determine the first QCL information of the target signal according to an existing manner, for example, the network device indicates the first QCL information of the target signal of the terminal device through display signaling. It should be understood that the first QCL information of the target signal in the embodiment of the present application may also be predefined or preconfigured, the network device and the terminal device are both predefined or preconfigured with the first QCL information of the target signal, and the terminal device may receive the target signal according to the preconfigured or predefined first QCL information.

In step S330, the first communication device determines the second QCL information when the first QCL information fails.

It should be understood that the failure of the first QCL information may be understood as the reason that the first communication apparatus, for example, the terminal device, cannot accurately receive the target signal according to the first QCL information, and the failure of the first QCL information (i.e., the terminal device cannot accurately receive the target signal according to the first QCL information) is caused because the filtering parameter of the receiving beam in the transceiving beam pair corresponding to the reference signal resource index used by the terminal device when receiving the target signal is relatively poor in reference. In this embodiment of the application, the reason why the first QCL information is invalid is that the second communication device, for example, the network device side, turns off some beams, for example, the network device turns off the transmission beam corresponding to the reference signal resource index in the first QCL information, so that the reference signal in the transmission beam cannot be transmitted, and thus the filter parameter of the reception beam corresponding to the reference signal resource index no longer has a reference value or has a poor reference property. Also, for example, the network device turns off the beam for transmitting the target signal indicated by the first QCL information, that is, the network device does not transmit the target signal using the beam for transmitting the target signal indicated by the first QCL information, and the terminal device still receives the target signal according to the receiving beam corresponding to the beam for transmitting the target signal indicated by the first QCL information, so that the terminal device cannot correctly receive the target signal.

The second QCL information is used to instruct the terminal device to receive the beam information of the target signal, in other words, when the first QCL information of the target signal fails, the terminal device cannot correctly receive the target signal according to the first QCL information, and can receive the target signal according to the second QCL information.

In this embodiment, the terminal device may determine that the first QCL information is invalid by itself, or may determine that the first QCL information is invalid according to an instruction of the network device.

As an example, the terminal device may determine that the first QCL information is invalid by itself.

For example, the network device may send information or a message about beam turn-off to the terminal device, and when the terminal device learns that the network device turns off the beam through the information or the message about beam turn-off, it may be determined that the first QCL information is invalid. The network device may notify the terminal device of information of all turned-off beams at the network device side, and the terminal device may determine whether a transmission beam corresponding to a reference signal resource index included in the first QCL information is turned off, and/or determine whether a transmission beam corresponding to QCL information for guiding a target signal to transmit is turned off, thereby determining whether the first QCL information is invalid. In other words, the terminal device may determine that the first QCL information is invalid when determining that the transmission beam corresponding to the reference signal resource index included in the first QCL information is turned off and/or determining that the transmission beam corresponding to the QCL information of the transmission beam used for transmitting the target signal is turned off. In some embodiments, the network device may notify only the terminal device whether the transmission beam corresponding to the reference signal resource index included in the first QCL information is turned off, and/or whether the transmission beam used for transmitting the target signal is turned off, and the terminal device may determine whether the first QCL information is invalid according to the information notified by the network device. In other words, the network device notifies the terminal device that the transmission beam corresponding to the reference signal resource index included in the first QCL information is turned off, and/or the transmission beam used for transmitting the target signal is turned off, and the terminal device may determine that the first QCL information is invalid according to the beam turn-off information on the network device side. It should be understood that in the embodiment of the present application, when at least one beam of one BPL or one transceiving beam pair is turned off, it may be understood that the one BPL or the one transceiving beam pair is turned off, for example, when a transmission beam in one BPL is turned off, it may be considered that the one BPL is turned off. It should also be understood that when at least one beam in one BPL is turned off, that one BPL will no longer be used for transmission of signals.

As another example, the terminal device may determine that the first QCL information is invalid according to an indication of the network device. The terminal device determines, according to the indication of the network device, that the first QCL information fails in multiple ways.

For example, the network device may send indication information to the terminal device, where the indication information indicates that the first QCL information is invalid or not invalid, e.g., the indication information may indicate that the first QCL information is invalid through a preset bit position 0, and a preset bit position 1 indicates that the first QCL information is not invalid (or the first QCL information is valid). Accordingly, when the terminal device receives the indication information sent by the network device, the terminal device may determine that the first QCL information is invalid when a preset bit position in the indication information is 0, and the terminal device may determine that the first QCL information is not invalid when the preset bit position in the indication information is 1.

For another example, the network device may indicate that the terminal device fails to receive the first QCL information by sending indication information to the terminal device, and indicate that the terminal device does not fail to receive the first QCL information by not sending the indication information; or, the terminal device is indicated that the first QCL information is not invalid by not transmitting the indication information, and the terminal device is indicated that the first QCL information is invalid by transmitting the indication information. Correspondingly, for the former case, if the terminal device receives the indication information sent by the network device, it may determine that the first QCL information is invalid, and if the terminal device does not receive the indication information sent by the network device, it may determine that the first QCL information is not invalid; the judgment of the terminal device in the latter case is opposite, and is not repeated for brevity.

For another example, the network device may send indication information to the terminal device, where the indication information indicates that the first QCL information is valid or that the second QCL information is valid. For example, the network device may indicate that the first QCL information is valid through a preset bit position 0 in the indication information, and indicate that the second QCL information is valid through a preset bit position 1 in the indication information. The terminal device may receive the target signal according to the first QCL information when the indication information indicates that the first QCL information is valid, and may receive the target signal according to the second QCL information when the indication information indicates that the second QCL information is valid. In other words, when the indication information indicates that the second QCL information is valid, the terminal device may determine that the first QCL information is invalid.

In other words, optionally, before step S330, the terminal device receives indication information sent by the network device, and when the terminal device receives the indication information sent by the network device, the terminal device determines that the first QCL information is invalid, wherein the indication information is used for indicating that the first QCL information is invalid and/or is used for indicating the second QCL information. In some embodiments, the indication information indicating that the first QCL information is invalid and the indication information indicating that the second QCL information are invalid may be carried or carried by the same message or signaling, or may be carried or carried by different messages or signaling. When the indication information for indicating that the first QCL information is invalid and the indication information for indicating that the second QCL information are carried by different messages or signaling, the different messages or signaling may be sent simultaneously or separately, and the embodiment of the present application is not particularly limited. Optionally, the indication information may be carried in downlink control information DCI.

Optionally, when the terminal device is indicated by the network device that the first QCL information is invalid, the network device may first determine that the first QCL information is invalid. The network device may determine whether the first QCL information is invalid according to the information of the off-beam. For example, if the network device turns off a transmission beam in a transceiving beam pair corresponding to a reference signal resource index included in the first QCL information, and/or the network device turns off a transmission beam used for transmitting the target signal, the network device may determine that the first QCL information is invalid. As another example, the network device may also consider the first QCL information to be invalid whenever there is beam off.

In other words, when the transmission beam in the transceiving beam pair corresponding to the reference signal resource index included in the first QCL information is turned off, and/or the transmission beam used by the network device side to transmit the target signal is turned off, the criterion or the condition for determining that the first QCL information is invalid may be equivalent to the first QCL information being invalid. The network device and the terminal device may determine whether the first QCL information is invalid according to the determination criterion (determination condition) or determine that the first QCL information is invalid according to the determination criterion (determination condition). When the first QCL information is determined to be invalid by the network device, the network device may notify the terminal device that the first QCL information is invalid, e.g., the network device directly indicates that the first QCL information is invalid, or the network device indirectly indicates that the first QCL information is invalid by indicating that the second QCL information is valid.

There are various ways for the terminal device to determine the second QCL information, and the second QCL information may be predefined or configured by the network device.

As an example, the second QCL information may be predefined, that is, the second QCL information in the embodiment of the present application may be preconfigured. The network device side and the terminal device side are both predefined or preconfigured with the second QCL information, and when the first QCL information of the target signal fails, the terminal device may determine the predefined second QCL information.

For example, the second QCL information may include an index of a first Synchronization Signal Block (SSB) received by the first communication apparatus, e.g., a terminal device. The index of the first synchronization signal block SSB corresponds to the reception filtering parameter when the terminal device measures based on the first synchronization signal block SSB. That is, the second QCL information instructs the terminal device to receive the target signal using the same filtering parameters as the reception beam on which the first synchronization signal block is received. The synchronization signal block SSB is a basic signal for the terminal device to perform cell access, so that the beam scanning of the synchronization signal block SSB is not easily turned off, and when the beam of the network device is suddenly turned off, the terminal device may refer to the reception filtering parameter corresponding to the previous first synchronization signal block index to receive the target signal, thereby ensuring that the terminal device can correctly receive the target signal.

Alternatively, the first synchronization signal block may be a synchronization signal block associated with a Physical Random Access Channel (PRACH) transmitted by the first communication apparatus, for example, the terminal device, and accordingly, the index of the first synchronization signal block may be an index of a synchronization signal block associated with the PRACH transmitted by the terminal device. It should be understood that when the terminal device accesses the network, the network device may send the synchronization signal block SSB message to the terminal device using beams in different directions, the SSBs sent by the beams in different directions may be the same or different, and the terminal device may measure the SSBs to determine a beam pair for the terminal device to access the network. Each SSB is associated with a PRACH resource used by the terminal device to access the network, and PRACH resources associated with different SSBs are different, which may also be understood as that SSBs sent by beams in different directions are in one-to-one correspondence with the PRACH resource, or may be understood as that beams in different directions are in one-to-one correspondence with the PRACH resource. Thus, from the PRACH transmitted by the terminal device, the synchronization signal block associated with the PRACH, i.e. the first synchronization signal block, may be determined. Optionally, the first synchronization signal block may be a synchronization signal block associated with a physical random access channel PRACH that is last sent by the terminal device, so that validity of a reference beam indicated in the QCL information obtained by the terminal device may be ensured, and accuracy of receiving the target signal may be improved. In some embodiments, the first synchronization signal block may be a synchronization signal block associated with a physical random access channel PRACH sent by the terminal device at a certain time within a preset time, which is not specifically limited in the embodiment of the present application.

Alternatively, the first synchronization signal block may be a synchronization signal block reported by the first communication device, for example, the terminal device, to the network device. After the terminal device performs the measurement of the synchronization signal block, it may report the obtained one or more SSB measurement results to the network device. In some embodiments, if the terminal device reports an SSB measurement result to the network device, the first synchronization signal block may be the SSB reported by the terminal device to the network device. In some embodiments, if the terminal device reports a plurality of SSB measurement results to the network device, the first synchronization signal block may be one SSB of the plurality of SSBs reported by the terminal device to the network device. It should be understood that the terminal device reports the synchronization signal block index to the network device. Optionally, the first synchronization signal block may be an SSB in a synchronization signal block last reported by the terminal device, and optionally, the first synchronization signal block may be a strongest SSB reported by the terminal device to the network device, or the first synchronization signal block may be an SSB in which a measurement result of an SSB among a plurality of SSBs reported by the terminal device to the network device meets a preset condition or a threshold.

Optionally, the type of the synchronization signal block in the embodiment of the present application may be multiple, for example, the SSB corresponding to the lowest SSB time index, the SSB corresponding to the received control channel resource set 0, the SSB in the initial access phase, or other SSBs, which is not limited in the embodiment of the present application.

For another example, the second QCL information may include a reference signal resource index in the first measurement result of the first communication apparatus, e.g., terminal device. The "measurement result of the terminal device" may be understood as a channel quality measurement result of the terminal device with respect to the reference signal, and the "first measurement result of the terminal device" may be understood as one of the channel quality measurement results of the terminal device with respect to the reference signal. The measurement result of the terminal device includes one or more reference signal indexes, where each reference signal index corresponds to a channel quality, and for example, the channel quality may be characterized by Reference Signal Receiving Power (RSRP) or Reference Signal Receiving Quality (RSRQ).

Optionally, the first measurement result may be a measurement result of a channel quality measurement for the first set of reference signal resources. The first set of reference signal resources includes a plurality of reference signal resources, and each reference signal resource corresponds to a reference signal. As mentioned above, the "reference signal resource" may also be expressed as a "beam", and accordingly the "first set of reference signal resources" may be understood as a "set of beams" or a "full set of beams", the set of beams comprising a plurality of beams, each beam corresponding to a reference signal. In general, the network device side needs to turn all the reference signal resources in the reference signal resource set on at intervals to obtain the information of channel quality measurement for the first reference signal resource set on the network device side. For example, the network device may configure a long-period reference signal set, where the reference signal set corresponds to a first reference signal resource set on the network device side, where each reference signal in the reference signal set corresponds to one reference signal resource (or beam) in the first reference signal resource set, and the terminal device monitors and obtains channel quality conditions of all reference signal resources in the first reference signal resource set on the network device side based on channel quality measurements of all reference signals in the reference signal set corresponding to the first reference signal resource set. Optionally, the first set of reference signal resources includes some or all of all reference signal resources covering a serving cell of the network device (it may also be understood that the first set of reference signal resources includes some or all of the beams covering the serving cell of the network device). Alternatively, the first measurement result may be one of the channel quality measurement results of the latest first set of reference signal resources, for example, the first measurement result may be the strongest one of the channel quality measurement results of the latest first set of reference signal resources. In some embodiments, the first measurement result may also be a channel quality measurement result satisfying a preset condition or threshold value among channel quality measurement results of the first reference signal resource set at a certain time within a preset time.

Optionally, the first measurement result may be a measurement result corresponding to a preset reference signal resource index in channel quality measurement results reported by the first communication device, for example, the terminal device. In other words, the "second QCL information may include a reference signal resource index in the first measurement result of the terminal device," which may be understood as that the second QCL information may include a preset reference signal resource index in the reported channel quality measurement result of the terminal device, and the preset reference signal resource index is included in the first measurement result. As an example and not by way of limitation, the first measurement result may be a measurement result corresponding to a reference signal resource index with a maximum, minimum, or intermediate value in the channel quality measurement results reported by the terminal device, that is, the reference signal resource index with the maximum index, the reference signal resource index with the minimum index, or the reference signal resource index with the intermediate value in the preset reference signal resource index may be the reference signal resource index with the maximum index, the reference signal resource index with the minimum index, or the reference signal resource index with the intermediate value in the preset reference signal resource index, that is, the second QCL information may include the reference signal resource index with the maximum, minimum, or intermediate value in the channel quality measurement results reported by the terminal device. The preset reference signal resource index may also be other values, and the embodiment of the present application is not limited.

Optionally, in this embodiment of the present application, the reference signal associated with the "first reference signal resource set" may be a synchronization signal block SSB, a channel state information reference signal, or another reference signal, such as a demodulation reference signal (DMRS), which is not limited in this embodiment.

Optionally, if the reference signal associated with the "first reference signal resource set" is the synchronization signal block SSB, specifically, the type of the SSB may be multiple, for example, the SSB corresponding to the lowest SSB time index, the SSB corresponding to the received control channel resource set 0, the SSB in the initial access phase, or other SSBs, which is not specifically limited in this embodiment of the present invention.

When the second QCL information is predefined, the target signal to which the terminal device determines the mode of the second QCL information is applicable may be a PDCCH, a periodic CSI-RS, a semi-persistent scheduling CSI-RS, or another signal or channel, which is not specifically limited in the embodiment of the present application.

When the target signal is PDCCH or semi-persistent scheduling CSI-RS, the terminal device may also determine the second QCL information as follows.

As mentioned above, the second communication device, e.g., a network device, may configure a set of candidate QCL information for the target signal by RRC signaling, the set of candidate QCL information including a plurality of candidate QCL information; the network device indicates one of the candidate QCL information as the first QCL information of the target signal through MAC CE signaling. When the first QCL information fails, the first communication apparatus, e.g., the terminal device, may determine, as the second QCL information, one piece of QCL information other than the first QCL information from the set of candidate QCL information configured for the terminal device by the network device. As an example and not by way of limitation, the plurality of candidate QCL information in the candidate QCL information set may be indicated by Transmission Configuration Indicator (TCI) signaling, and the network device may configure a TCI state set for the terminal device through RRC signaling, where the TCI state set includes a plurality of TCIs, where the plurality of TCIs in the TCI state set correspond to the plurality of candidate QCL information in the candidate QCL information set in a one-to-one manner, and the MAC CE signaling may indicate one TCI in the plurality of TCIs, and the terminal device determines the TCI according to the MAC CE signaling, so as to determine the QCL information. If the TCI indicated by the MAC CE signaling fails, the terminal device may select, as the second QCL information, QCL information indicated by TCIs other than the TCI indicating the first QCL information from the TCI state set configured by RRC signaling.

Optionally, if the TCI indicated by the MAC CE fails, the terminal device may select, as the second QCL information, QCL information indicated by one valid TCI state with the largest or smallest reference signal resource index in the TCI state set. It should be understood that the terminal device may also select, as the second QCL information, QCL information indicated by a valid TCI state in which the reference signal resource index is another value in the TCI state set, which is not specifically limited in this embodiment of the present application.

Optionally, if all TCI states in the TCI state set configured for the terminal device by the network device fail, the terminal device may determine the second QCL information according to several determination modes in which the terminal device determines the second QCL information when the target signal is the periodic CSI-RS, which may specifically refer to the above description and is not described herein again for brevity.

It should be understood that in the embodiment of the present application, the "TCI failure" may be understood as a failure of QCL information indicated by the TCI, that is, a transmission beam corresponding to a reference signal resource index indicated by the TCI is turned off.

When the second QCL information is predefined, a configuration manner of the second QCL information may be determined according to different types of signals or channels, and the second QCL information may be configured in any one of the following manners: radio resource control, RRC, signaling; or, RRC signaling and media intervention control unit MAC CE signaling; or RRC signaling and downlink control information DCI signaling. The configuration manner of the second QCL information may be the same as that of the first QCL information, and reference may be made to the above description.

The above describes a case where the second QCL information is predefined, and as another example, the second QCL information may be configured by the second communication apparatus, for example, a network device. It should be understood that the second QCL information is dynamically configured by the network device in the embodiment of the present application.

For example, when the first QCL information fails, the first communication apparatus, e.g., a terminal device, may receive the second QCL information transmitted by the second communication apparatus, e.g., a network device. The second QCL information is dynamically configured for the terminal device by the network device after determining that the first QCL information is invalid. The second QCL information may include a reference signal resource index reconfigured by the network device for the terminal device, and the terminal device may determine the filtering parameters (or the reception beams) for receiving the target signal according to the reference signal resource index reconfigured by the network device.

When the first QCL information is invalid, the network equipment can reconfigure second QCL information for the terminal equipment, so that when the network equipment turns off certain beams, the terminal equipment can be ensured to receive target signals according to QCL hypotheses corresponding to other effective beams, and the accuracy of receiving the target signals is ensured.

Optionally, the second QCL information may be carried in downlink control information DCI signaling or media access control element MAC CE signaling. The DCI signaling may be designed according to different types of signals or channels, for example, the DCI may be DCI indicating that a reference signal resource index is invalid, may also be newly added DCI, and may also be DCI indicating CSI-RS dynamic release, and the MAC CE signaling may also be designed according to different types of signals or channels, where the cases are similar to the DCI signaling, and the embodiments of the present application are not limited specifically.

Alternatively, when the second QCL information is configured by the network device, in step S330 or before step S330, the first communication apparatus, e.g., the terminal device, may receive indication information sent by the second communication apparatus, e.g., the network device, the indication information indicating that the first QCL information is invalid. In some embodiments, the network device may send the second QCL information to the terminal device through signaling, and may also send indication information to the terminal device, where the indication information is used to indicate that the first QCL information is invalid.

In step S340, the terminal device receives the target signal according to the second QCL information.

In this step, the terminal device may determine reception filtering parameters for receiving the target signal according to the second QCL information, thereby receiving the target signal according to the reception filtering parameters.

In the technical solution provided in the embodiment of the present application, when first QCL information of a target signal fails, a first communication device, for example, a terminal device, may receive the target signal according to second QCL information, so that when a second communication device, for example, a network device, fails to configure first QCL information for the first communication device, that is, when a second communication device side turns off some beams, for example, a transmission beam corresponding to a reference signal resource index in the first QCL information or a transmission beam used for transmitting the target signal, the QCL information and a receiving behavior of the first communication device, for example, the terminal device, for receiving the target signal may be re-determined, thereby ensuring accuracy of receiving the target signal.

As described above, the wireless network communication method provided in the embodiment of the present application can be applied to a case where the terminal device operates on a bandwidth part (BWP) (i.e., the terminal device does not perform BWP handover). It should be understood that the embodiments of the present application may also be applied to the case where the terminal device switches between different bandwidth portions BWP. One specific non-limiting example of an embodiment of the present application is described in more detail below in conjunction with FIG. 4. In fig. 4, the target signal is described as a PDCCH, but other types of signals or channels may be applied to the embodiments of the present application.

Fig. 4 shows a schematic flow chart of a wireless network communication method of another embodiment of the present application. As shown in fig. 4, the method 400 includes steps S410 to S450.

In step S410, the second communication device configures the first communication device with a set of CORESET/PDSCH TCI states.

For convenience of understanding, in the embodiments of the present application, a first communication device is taken as a terminal device, and a second communication device is taken as a network device for example.

In this step, the second communication device, e.g. a network device, may configure the TCI state set for a different bandwidth part (BWP). BWP may be understood as the operating bandwidth of the first communication means, e.g. the terminal device, corresponding to a specific carrier and a specific set of parameters. The terminal device may configure multiple BWPs, but only activate one at the same time, different BWPs may use different parameter sets, the terminal device receives signals within the activated BWP range, and the terminal device does not receive PDSCH, PDCCH or CSI-RS outside BWP. Therefore, in this step, the network device configures TCI state sets for different BWPs of the terminal device, each TCI state set including a plurality of TCI states, and the TCI states may indicate QCL information for the terminal device to receive signals. For example, taking the terminal device configuring 2 BWPs (BWP #1 and BWP #2) as an example, the network device may configure a TCI state set #1 for BWP #1 and a TCI state set #2 for BWP #2, where one TCI state in the TCI state set #1 is used to indicate the first QCL information of the signal received by the terminal device on BWP # 1.

In step S420, when the first QCL information fails, the second communication device instructs the first communication device to switch from the current BWP #1 to BWP #2 through DCI #1 and schedules the data PDSCH #1 on BWP # 2.

In this step, when the first QCL information indicated in the TC state set #1 fails, the second communication apparatus, e.g., a network device, may notify the terminal device of the failure of the first QCL information while instructing the first communication apparatus, e.g., the terminal device, to receive a signal on the active BWP #2, e.g., PDSCH #1 shown in fig. 4.

At step S430, the first communication device switches to BWP # 2.

In step S440, the first communication device receives the PDSCH #1 using the second QCL information.

In this step, since the first QCL information for receiving the PDSCH #1 is failed, the first communication device, e.g., a terminal apparatus, may receive the PDSCH #1 using the second QCL information. In this embodiment of the present application, the second QCL information may be predefined, or may be dynamically configured by the network device for the terminal device. The determination manner of the second QCL information may refer to the description in the method 300, and is not described herein again for brevity.

In step S450, the first communication device receives DCI #2 at BWP #2 and schedules data PDSCH #2 on BWP # 2.

In this step, the first communication device, e.g. the terminal device, may receive a signal on BWP #2, since BWP #2 is in the active state. It should be understood that, in this step, the terminal device receives the data PDSCH #2 on BWP #2 using the second QCL information.

Method embodiments of the present application are described above in detail with reference to fig. 1 to 4, and apparatus embodiments of the present application are described in detail with reference to fig. 5 to 8. It is to be understood that the description of the method embodiments corresponds to the description of the apparatus embodiments, and therefore reference may be made to the preceding method embodiments for parts not described in detail.

Fig. 5 is a schematic structural diagram of an apparatus provided in one embodiment of the present application. The apparatus 500 of fig. 5 may be the first communication apparatus mentioned above, and may be a specific example of the terminal device 120 shown in fig. 1 or fig. 2, for example. The apparatus 500 may be used to implement the steps performed by the first communication apparatus above, such as the method of fig. 3 or fig. 4. To avoid redundancy, the description is not repeated.

The apparatus 500 shown in fig. 5 includes a determining module 510 and a receiving module 520.

The determining module 510 is configured to determine first quasi-co-located QCL information of a target signal.

The receiving module 520 is configured to receive the target signal according to the second QCL information when the first QCL information fails.

Optionally, the second QCL information is predefined.

Optionally, the target signal is a periodic channel state information reference signal, and the second QCL information includes any one of the following information: an index of a first synchronization signal block SSB received by the apparatus 500; alternatively, the reference signal resource index in the first measurement result of the apparatus 500.

Optionally, the target signal is a physical downlink control channel PDCCH or a semi-persistent scheduling channel state information reference signal, and the second QCL information includes any one of the following information: one QCL information other than the first QCL information in a set of candidate QCL information configured for the apparatus 500 by a second communication apparatus, wherein the set of candidate QCL information comprises the first QCL information; alternatively, the apparatus 500 receives an index of the first synchronization signal block SSB; alternatively, the reference signal resource index in the first measurement result of the apparatus 500.

Optionally, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the apparatus 500, or a synchronization signal block reported by the apparatus 500 to the network device.

Optionally, when the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the apparatus 500, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the apparatus 500 last time.

Optionally, the first measurement result is a measurement result of channel quality measurement for a first reference signal resource set, or a measurement result corresponding to a preset reference signal resource index in channel quality measurement results reported by the apparatus 500.

Optionally, the determining module 510 is further configured to determine that the first QCL information is invalid when the receiving module 520 receives indication information sent by the second communication device, where the indication information is used to indicate that the first QCL information is invalid and/or is used to indicate the second QCL information.

Optionally, the indication information is carried in downlink control information DCI.

Optionally, the first QCL information or the second QCL information is configured by any one of: radio resource control, RRC, signaling; or, RRC signaling and media intervention control unit MAC CE signaling; or RRC signaling and downlink control information DCI signaling.

Optionally, the receiving module 520 is further configured to receive the second QCL information sent by the network device when the first QCL information fails.

Optionally, the second QCL information is carried in a downlink control information DCI signaling or a media access control element MAC CE signaling.

Alternatively, the determining module 510 may be a processor.

Alternatively, the receiving module 520 may be a receiver, a transceiver, or a transceiver.

Fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication apparatus 600 shown in fig. 6 may correspond to the first communication apparatus described above, and may be a specific example of the terminal device 120 in fig. 1 or fig. 2, for example. The communication apparatus 600 includes: a processor 602. In an embodiment of the present application, the processor 602 is configured to control and manage an action of the first communication apparatus, for example, the processor 602 is configured to support the first communication apparatus, for example, the terminal device, to perform the method or the operation or the function shown in fig. 3 or fig. 4 in the foregoing embodiment. Optionally, the communication apparatus 600 may further include: a memory 601 and a communication interface 603; the processor 602, the communication interface 603, and the memory 601 may be connected to each other or to each other through a bus 604. Wherein the communication interface 603 is adapted to support communication for the first communication device, e.g. a terminal equipment, and the memory 601 is adapted to store program codes and data for the first communication device, e.g. a terminal equipment. The processor 602 calls the code stored in the memory 601 for control management. The memory 601 may or may not be coupled to the processor. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules.

The processor 602 may be, among other things, a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, transistor logic, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a digital signal processor and a microprocessor, or the like. The communication interface 603 may be a transceiver, circuit, bus, module, or other type of communication interface. The bus 604 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.

Fig. 7 is a schematic block diagram of an apparatus provided in another embodiment of the present application. The apparatus 700 of fig. 7 may be the second communication apparatus mentioned above, and may be a specific example of the network device 110 shown in fig. 1 or fig. 2, for example. The apparatus 700 may be used to implement the steps performed by the second communication device above, such as the method of fig. 3 or fig. 4. To avoid redundancy, the description is not repeated.

The apparatus 700 shown in fig. 7 includes a configuration module 710 and a transmission module 720.

The configuration module 710 is configured to configure the first quasi co-located QCL information of the target signal for the first communication device.

The sending module 720 is configured to instruct the first communication device to receive the target signal according to the second QCL information when the first QCL information fails.

Optionally, the second QCL information is predefined.

Optionally, the target signal is a periodic channel state information reference signal, and the second QCL information includes any one of the following information: an index of a first synchronization signal block SSB received by the first communication device; alternatively, the first communication device may be configured to determine an index of a reference signal in the first measurement.

Optionally, the target signal is a physical downlink control channel PDCCH or a semi-persistent scheduling channel state information reference signal, and the second QCL information includes any one of the following information: one of a set of candidate QCL information configured by the configuration module 710 for the first communication device other than the first QCL information, wherein the set of candidate QCL information includes the first QCL information; or, an index of a first synchronization signal block SSB received by the first communication device; alternatively, the first communication device may be configured to determine an index of a reference signal in the first measurement.

Optionally, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus, or a synchronization signal block reported by the first communication apparatus to the network device.

Optionally, when the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH sent by the first communication apparatus last time.

Optionally, the first measurement result is a measurement result of channel quality measurement for a first reference signal resource set, or a measurement result corresponding to a preset reference signal resource index in channel quality measurement results reported by the first communication device.

Optionally, the sending module 720 is further configured to send indication information to the first communications apparatus, where the indication information is used to indicate that the first QCL information is invalid and/or is used to indicate the second QCL information.

Optionally, the sending module 720 is specifically configured to send the second QCL information to the first communication apparatus.

Fig. 8 is a schematic structural diagram of a communication apparatus according to another embodiment of the present application. The communication apparatus 800 shown in fig. 8 may correspond to the second communication apparatus described above, and may be a specific example of the network device 110 in fig. 1 or fig. 2. The communication apparatus 800 includes: a processor 802. In an embodiment of the present application, the processor 802 is configured to control and manage an action of the second communication apparatus, for example, the network device, and for example, the processor 802 is configured to support the second communication apparatus, for example, the network device, to perform the method or the operation or the function shown in fig. 3 or fig. 4 in the foregoing embodiment. Optionally, the communication apparatus 800 may further include: a memory 801 and a communication interface 803; the processor 802, communication interface 803, and memory 801 may be interconnected or interconnected by a bus 804. Wherein the communication interface 803 is used for supporting the communication of the second communication apparatus, such as a network device, and the memory 801 is used for storing program codes and data of the second communication apparatus, such as a network device. The processor 802 calls the code stored in the memory 801 to perform control management. The memory 801 may or may not be coupled to the processor. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules.

The processor 802 may be, among other things, a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, transistor logic, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a digital signal processor and a microprocessor, or the like. The communication interface 803 may be a transceiver, circuit, bus, module, or other type of communication interface. The bus 804 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 8, but this is not intended to represent only one bus or type of bus.

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 application.

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 several embodiments provided in the present application, it should be understood that the disclosed system, 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 application 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 method provided by the embodiment of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network appliance, a user device, or other programmable apparatus. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., an SSD), among others.

In the embodiments of the present application, the embodiments may refer to each other, for example, methods and/or terms between the embodiments of the method may refer to each other, for example, functions and/or terms between the embodiments of the apparatus and the embodiments of the method may refer to each other, without logical contradiction.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A wireless network communication method, comprising:

the first communication device determining first quasi co-located QCL information of a target signal;

the first communication device receives the target signal according to second QCL information when the first QCL information fails.

2. The method of claim 1, wherein said second QCL information is predefined.

3. The method of claim 2, wherein the target signal is a periodic channel state information reference signal, and wherein the second QCL information comprises any one of:

an index of a first synchronization signal block SSB received by the first communication device; or,

a reference signal resource index in a first measurement result of the first communication device.

4. The method of claim 2, wherein the target signal is a Physical Downlink Control Channel (PDCCH) or a semi-persistent scheduling channel state information reference signal, and wherein the second QCL information comprises any one of the following information:

one QCL information other than the first QCL information in a candidate QCL information set configured for the first communication device by a second communication device, wherein the candidate QCL information set comprises the first QCL information; or,

5. The method according to claim 3 or 4, wherein the first synchronization signal block SSB is a synchronization signal block associated with a Physical Random Access Channel (PRACH) transmitted by the first communications apparatus, or a synchronization signal block reported by the first communications apparatus to the second communications apparatus.

6. The method of claim 5, wherein the first synchronization signal block SSB is a synchronization signal block associated with a Physical Random Access Channel (PRACH) that is transmitted by the first communication device last time when the first synchronization signal block SSB is a synchronization signal block associated with a Physical Random Access Channel (PRACH) that is transmitted by the first communication device last time.

7. The method according to claim 3 or 4, wherein the first measurement result is a measurement result of channel quality measurement for a first set of reference signal resources, or a measurement result corresponding to a preset reference signal resource index in channel quality measurement results reported by the first communications device.

8. The method of any one of claims 1 to 7, further comprising:

when the first communication device receives indication information sent by the second communication device, the first communication device determines that the first QCL information is invalid, wherein the indication information is used for indicating that the first QCL information is invalid and/or is used for indicating the second QCL information.

9. The method of claim 8, wherein the indication information is carried in Downlink Control Information (DCI).

10. The method of any of claims 2 to 9, the first or second QCL information being configured by any one of:

radio resource control, RRC, signaling; or,

RRC signaling and media intervention control unit MAC CE signaling; or,

RRC signaling and downlink control information DCI signaling.

11. The method of claim 1, wherein prior to said first communications device receiving signals in accordance with second QCL information when said first QCL information fails, further comprising:

the first communication device receives the second QCL information transmitted by the second communication device.

12. The method of claim 11, wherein the second QCL information is carried in downlink control information, DCI, signaling or media access control element, MAC CE, signaling.

13. A wireless network communication method, comprising:

the second communication device configures first quasi-co-located QCL information of a target signal for the first communication device;

when the first QCL information fails, the second communication device instructs the first communication device to receive the target signal according to second QCL information.

14. The method of claim 13, wherein said second QCL information is predefined.

15. The method of claim 14, wherein the target signal is a periodic channel state information reference signal, and wherein the second QCL information comprises any one of:

16. The method of claim 14, wherein the target signal is a Physical Downlink Control Channel (PDCCH) or a semi-persistent scheduling channel state information reference signal, and wherein the second QCL information comprises any one of the following information:

one of a set of candidate QCL information configured for the first communication device by the second communication device, other than the first QCL information, wherein the set of candidate QCL information includes the first QCL information; or,

an index of a reference signal in a first measurement by the first communication device.

17. The method according to claim 15 or 16, wherein the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel, PRACH, sent by the first communications apparatus or a synchronization signal block reported by the first communications apparatus to the second communications apparatus.

18. The method of claim 17, wherein when the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH transmitted by the first communications apparatus, the first synchronization signal block SSB is a synchronization signal block associated with a physical random access channel PRACH most recently transmitted by the first communications apparatus.

19. The method of claim 15 or 16, wherein the first measurement result is a measurement result of channel quality measurement for a first set of reference signal resources, or a measurement result corresponding to a preset reference signal resource index in channel quality measurement results reported by the first communications device.

20. The method of any of claims 13 to 19, wherein the second communication device indicates second QCL information to the first communication device, comprising:

the second communication device sends indication information to the first communication device, wherein the indication information is used for indicating that the first QCL information is invalid and/or indicating the second QCL information.

21. The method of claim 20, wherein the indication information is carried in Downlink Control Information (DCI).

22. The method of any of claims 14 to 21, wherein the first QCL information or the second QCL information is configured by any one of:

radio resource control, RRC, signaling; or,

RRC signaling and media intervention control unit MAC CE signaling; or,

RRC signaling and downlink control information DCI signaling.

23. The method of claim 13, wherein the second communications device indicates the second QCL information to the first communications device, comprising:

the second communication device transmits the second QCL information to the first communication device.

24. The method of claim 23, wherein the second QCL information is carried in downlink control information, DCI, signaling or media access control element, MAC CE, signaling.

25. A communications apparatus comprising a processor and a memory, the memory storing instructions, the processor being configured to invoke and execute the instructions from the memory, the instructions being configured to perform the method of any of claims 1 to 12.

26. A communications apparatus comprising a processor and a memory, the memory storing instructions, the processor being configured to retrieve and execute the instructions from the memory, the instructions being configured to perform the method of any of claims 13 to 24.

27. A computer-readable storage medium having stored thereon computer-executable instructions configured to perform the method of any one of claims 1 to 24.