CN110418357B

CN110418357B - Communication method and device

Info

Publication number: CN110418357B
Application number: CN201810388347.6A
Authority: CN
Inventors: 袁世通; 曾清海; 张希; 管鹏; 陈雷; 严乐
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-04-26
Filing date: 2018-04-26
Publication date: 2021-06-22
Anticipated expiration: 2038-04-26
Also published as: CN110418357A

Abstract

The embodiment of the application provides a communication method and a device, wherein the method comprises the following steps: receiving a first signaling from a network device, wherein the first signaling is MAC layer signaling or physical layer signaling, and the first signaling is used for updating a first reference signal set; and updating the first reference signal set according to the first signaling, wherein the first reference signal set is a reference signal set used for beam failure detection in a terminal physical layer. Because the time delay of the MAC layer signaling or the physical layer signaling is short, after the terminal changes the service wave beam, the first reference signal set can be quickly updated through the first signaling, and the time for continuing the wave beam failure detection according to the previous first reference signal set is reduced, so that the phenomenon that the wave beam failure occurs in the process of false detection is reduced, the frequency of communication interruption is reduced, and the communication quality is improved.

Description

Communication method and device

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a communication method and device.

Background

In order to ensure effective transmission of services, a beam forming (beam forming) technology is introduced into a cell, that is, a base station concentrates energy of signals in a certain required direction and sends the signals to a terminal through beams in the direction, so that the demodulation signal-to-noise ratio of the terminal is improved, and the user experience at the edge of the cell is improved. When the terminal and the base station communicate through a beam, the terminal performs beam failure detection, that is, the terminal detects the quality of a service beam according to a beam failure detection reference signal (BFD RS). When the quality of all the service beams of the terminal does not meet the condition for a plurality of times continuously, the beam failure phenomenon is indicated to occur, and in order to ensure the communication between the terminal and the base station, the beam failure recovery is required to be carried out, that is, the terminal determines the candidate beams with the quality meeting the condition again from the candidate beams, then sends a beam failure recovery request to the base station, and informs the base station of the candidate beam selected by the terminal through the request so that the base station takes the candidate beam as the service beam for the communication between the base station and the terminal. And the base station indicates a new service beam to the terminal so that the base station and the terminal adopt the new service beam for communication, and then the base station configures a beam failure detection reference signal matched with the new service beam to the terminal so that the terminal performs beam failure detection.

However, currently, a base station configures a beam failure detection reference signal to a terminal through Radio Resource Control (RRC) signaling, where a time delay of the RRC signaling is at least 5ms, and a time for the terminal to change a service beam is 1 to 2ms, and after the terminal is switched to a new service beam and before the terminal does not receive the RRC signaling, the terminal still performs beam failure detection according to the previous beam failure detection reference signal, so that a beam failure phenomenon is erroneously detected to occur, and further, communication interruption affects communication quality.

Disclosure of Invention

The embodiment of the application provides a communication method and device, which are used for reducing the times of misdetection that a beam failure phenomenon occurs, reducing the times of communication interruption and improving the communication quality.

In a first aspect, an embodiment of the present application provides a communication method, including: first, a first signaling is received from a network device, where the first signaling is a Media Access Control (MAC) layer signaling or a physical layer signaling, and the first signaling is used to update a first reference signal set. And then updating the first reference signal set according to the first signaling, wherein the first reference signal set is a reference signal set used for beam failure detection in a terminal physical layer.

Because the time delay of the MAC layer signaling or the physical layer signaling is short, after the terminal changes the service wave beam, the first reference signal set can be quickly updated through the first signaling, and the time for continuing the wave beam failure detection according to the previous first reference signal set is reduced, so that the phenomenon that the wave beam failure occurs in the process of false detection is reduced, the frequency of communication interruption is reduced, and the communication quality is improved.

In one possible implementation, the first signaling includes: identification of one or more reference signals.

In one possible implementation, the first signaling is used to indicate: the network device sends the beam of the one or more reference signals and the beam quasi-co-location of a Physical Downlink Control Channel (PDCCH) to the terminal. Since the beam transmitting the reference signal in the first reference signal set is quasi-co-located with the beam transmitting the PDCCH, the reference signal transmitted by the beam quasi-co-located with the beam transmitting the PDCCH may be used as the reference signal in the first reference signal set.

In one possible implementation, the first signaling includes a transmission configuration number status indication.

Thus, existing MAC layer signaling can be used for: the reference signal set used for the beam failure detection of the terminal physical layer is updated, which is equivalent to the existing signaling implicit indication that the reference signal set is updated, and the signaling content transmitted between the terminal and the network equipment does not need to be changed.

In a possible implementation manner, before the updating of the first reference signal set according to the first signaling, second signaling is further received from the network device, where the second signaling is used to instruct to update the first reference signal set according to an identifier of one or more reference signals included in the first signaling, and the second signaling is MAC layer signaling or physical layer signaling.

Therefore, a new display signaling (i.e. a second signaling) is added, and indicates that the identifier of the reference signal in the existing signaling (i.e. the first signaling) is used for updating the reference signal set for beam failure detection in the physical layer of the terminal, and the new added explicit signaling is MAC layer signaling or physical layer signaling. In addition, because the newly added signaling is an indication signaling and does not need to carry the identifier of the reference signal, the network overhead of the newly added signaling is low.

In one possible implementation, the first signaling is used to instruct to update the first reference signal set according to the identification of the one or more reference signals.

Therefore, in this embodiment, an MAC layer signaling or a physical layer signaling is added, the added signaling carries an identifier of a reference signal, and the added signaling indicates that a reference signal set for beam failure detection in a physical layer of the terminal is updated according to the identifier of the reference signal carried by the added signaling.

In a possible implementation manner, the reference signal is a reference signal of a candidate beam of the terminal. The candidate beam is often an adjacent beam of the service beam, so the first reference signal set can be updated according to the reference signal of the candidate beam, and the updated first reference signal set can reduce the times of misdetection that the beam failure phenomenon occurs.

In one possible implementation, the first signaling is used to instruct to update the first set of reference signals according to a set of reference signals of a candidate beam, which includes an identification of one or more reference signals.

Therefore, in this embodiment, an MAC layer signaling or a physical layer signaling is added, and the added signaling indicates that the reference signal set for beam failure detection in the physical layer of the terminal is updated according to the reference signal set of the candidate beam, so that the terminal can quickly update the reference signal set for beam failure detection in the physical layer, thereby reducing the phenomenon of beam failure due to false detection, reducing the number of times of communication interruption, and improving the communication quality. In addition, because the newly added signaling is an indication signaling and does not need to carry the identifier of the reference signal, the network overhead of the newly added signaling is low.

In one possible implementation, the updating the first set of reference signals according to the first signaling includes:

adding the identified portions of the one or more reference signals to the first set of reference signals. Or,

adding all of the identities of the one or more reference signals to the first set of reference signals. Or,

replacing part or all of the identities of the reference signals in the first set of reference signals with the identified part of the one or more reference signals. Or,

replacing some or all of the identities of the reference signals in the first set of reference signals with all of the identities of the one or more reference signals.

In a possible implementation manner, the method further updates a second reference signal set according to the first signaling, where the second reference signal set is a reference signal set used for beam failure detection in a Radio Resource Control (RRC) layer of the terminal.

In a second aspect, an embodiment of the present application provides a communication method, including: generating a third signaling, wherein the third signaling is an MAC layer signaling or a physical layer signaling;

and sending the third signaling to a terminal, where the third signaling is used for the terminal to update a first reference signal set, and the first reference signal set is a reference signal set used for beam failure detection in a physical layer of the terminal.

Because the time delay of the MAC layer signaling or the physical layer signaling is short, after the terminal changes the service wave beam, the first reference signal set can be quickly updated through the third signaling, and the time for continuing the wave beam failure detection according to the previous first reference signal set is reduced, so that the phenomenon that the wave beam failure occurs in the process of false detection is reduced, the frequency of communication interruption is reduced, and the communication quality is improved.

In a possible implementation manner, before sending the third signaling to the terminal, a fourth signaling is further sent to the terminal, where the fourth signaling includes an identifier of one or more reference signals, and the fourth signaling is MAC layer signaling or physical layer signaling.

Wherein the third signaling is used to indicate that the first set of reference signals is updated according to the identity of the one or more reference signals in the fourth signaling.

In a possible implementation manner, the fourth signaling is used to indicate: the beam on which the network device transmits the one or more reference signals to the terminal is quasi co-located with the beam on which the PDCCH is transmitted.

Therefore, a new display signaling (i.e. a fourth signaling) is added, and indicates that the identifier of the reference signal in the existing signaling (i.e. the third signaling) is used for updating the reference signal set for beam failure detection in the physical layer of the terminal, and the new added display signaling is MAC layer signaling or physical layer signaling. In addition, because the newly added signaling is an indication signaling and does not need to carry the identifier of the reference signal, the network overhead of the newly added signaling is low.

In one possible implementation, the third signaling further includes: an identity of one or more reference signals, the third signaling to indicate that the first set of reference signals is updated according to the identity of the one or more reference signals. Therefore, in this embodiment, an MAC layer signaling or a physical layer signaling is added, the added signaling carries an identifier of a reference signal, and the added signaling indicates that a reference signal set for beam failure detection in a physical layer of the terminal is updated according to the identifier of the reference signal carried by the added signaling.

In one possible implementation, the third signaling is used to instruct to update the first set of reference signals according to a set of reference signals of a candidate beam, which includes an identification of one or more reference signals.

In combination with any one or more of the above aspects, or one or more possible implementations of any one or more of the above aspects, in a third aspect, an embodiment of the present application provides a communication method, including:

a terminal receives an indication, wherein the indication is used for indicating the terminal to update a first reference signal set according to the indication, and the first reference signal set is a reference signal set used for beam failure detection in a terminal-side physical layer;

the terminal updates the first reference signal set.

Therefore, the terminal can quickly update the first reference signal set through the indication, and the time for continuing the beam failure detection according to the previous first reference signal set is reduced, so that the phenomenon that the beam failure occurs in the false detection is reduced, the frequency of communication interruption is reduced, and the communication quality is improved.

In a fourth aspect, an embodiment of the present application provides a communication method, including:

the network equipment generates an indication, wherein the indication is used for indicating the terminal to update a first reference signal set according to the indication, and the first reference signal set is a reference signal set used for beam failure detection in a terminal-side physical layer;

the network device sends the indication.

Therefore, the terminal updates the first reference signal set through the indication, and reduces the time for continuing the beam failure detection according to the previous first reference signal set, thereby reducing the phenomenon of beam failure caused by false detection, reducing the frequency of communication interruption and improving the communication quality.

In a possible implementation manner of the third aspect and/or the fourth aspect, the Indication is a Transmission Configuration Index State Indication (TCI State Indication). Thus, the existing TCI State Indication can be used for: and updating the reference signal set used for beam failure detection of the terminal physical layer, which is equivalent to the existing implicit Indication of the TCI State Indication to update the reference signal set, and the signaling content transmitted between the terminal and the network equipment does not need to be changed.

In a possible implementation manner of the third aspect and/or the fourth aspect, the indication is further used for indicating an identity of a reference signal.

In a possible implementation manner of the third aspect and/or the fourth aspect, the indication further includes an identification of a reference signal.

In a possible implementation manner of the third aspect and/or the fourth aspect, the indication is underlying signaling.

Because the indication is bottom layer signaling, the time delay of the bottom layer signaling is less, and the terminal can quickly update the first reference signal set through the indication.

In a possible implementation manner of the third aspect and/or the fourth aspect, the indication is the first signaling.

In a possible implementation manner of the third aspect and/or the fourth aspect, the method further includes the terminal receiving the second signaling.

In a possible implementation manner of the third aspect and/or the fourth aspect, the method further includes the network device sending the second signaling.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, including: the device comprises a receiving module and a processing module.

The receiving module is configured to receive a first signaling from a network device, where the first signaling is MAC layer signaling or physical layer signaling, and the first signaling is used to update a first reference signal set.

The processing module is configured to update the first reference signal set according to the first signaling, where the first reference signal set is a reference signal set used for beam failure detection in a terminal physical layer.

Wherein, the receiving module may be a receiver, and the processing module may be a processor.

In one possible implementation, the first signaling is used to indicate: the beam for transmitting the one or more reference signals to the terminal by the network device is quasi co-located with the beam for transmitting the PDCCH.

In a possible implementation manner, the receiving module is further configured to receive, before the processing module updates the first reference signal set according to the first signaling, second signaling from the network device, where the second signaling is used to instruct to update the first reference signal set according to an identifier of one or more reference signals included in the first signaling, and the second signaling is MAC layer signaling or physical layer signaling.

In a possible implementation manner, the reference signal is a reference signal of a candidate beam of the terminal.

In a possible implementation manner, the processing module is specifically configured to:

adding the identified portions of the one or more reference signals to the first set of reference signals; or,

adding all of the identities of the one or more reference signals to the first set of reference signals; or,

replacing part or all of the identities of the reference signals in the first set of reference signals with the identified part of the one or more reference signals; or,

In one possible implementation manner, the processing module is further configured to:

and updating a second reference signal set according to the first signaling, wherein the second reference signal set is a reference signal set used for beam failure detection in a terminal RRC layer.

In a possible implementation manner, the receiving module is configured to receive an indication, where the indication is used to instruct a terminal to update a first reference signal set according to the indication, where the first reference signal set is a reference signal set used for beam failure detection in a physical layer at a terminal side.

The processing module is configured to update the first reference signal set.

In a possible implementation manner, the receiving module is further configured to receive the second signaling.

In a sixth aspect, an embodiment of the present application provides a communication apparatus, including: the device comprises a processing module and a sending module.

The processing module is configured to generate a third signaling, where the third signaling is an MAC layer signaling or a physical layer signaling.

The sending module is configured to send the third signaling to a terminal, where the third signaling is used for the terminal to update a first reference signal set, and the first reference signal set is a reference signal set used for beam failure detection in the terminal physical layer.

Wherein the processing module may be a processor and the sending module may be a transmitter.

In a possible implementation manner, the sending module is further configured to send a fourth signaling to the terminal before sending a third signaling to the terminal, where the fourth signaling includes an identifier of one or more reference signals, and the fourth signaling is an MAC layer signaling or a physical layer signaling;

In one possible implementation, the third signaling further includes: an identity of one or more reference signals, the third signaling to indicate that the first set of reference signals is updated according to the identity of the one or more reference signals.

In a possible implementation manner, the processing module is configured to generate an indication, where the indication is used to instruct a terminal to update a first reference signal set according to the indication, where the first reference signal set is a reference signal set used for beam failure detection in a physical layer at a terminal side.

The sending module is used for sending the indication.

In a possible implementation manner, the sending module is further configured to send the fourth signaling.

In a seventh aspect, an embodiment of the present application provides a communication apparatus, including: an interface and a processor, the interface and the processor coupled.

The processor is configured to receive a first signaling from a network device through the interface, where the first signaling is MAC layer signaling or physical layer signaling, and the first signaling is used to update a first reference signal set; and updating the first reference signal set according to the first signaling, wherein the first reference signal set is a reference signal set used for beam failure detection in a terminal physical layer.

In a possible implementation manner, the processor is further configured to receive, through the interface, second signaling before updating the first reference signal set according to the first signaling, where the second signaling is used to instruct to update the first reference signal set according to an identifier of one or more reference signals included in the first signaling, and the second signaling is MAC layer signaling or physical layer signaling.

In one possible implementation, the processor is specifically configured to:

In one possible implementation, the processor is further configured to:

In one possible implementation, the processor is configured to receive an indication through the interface and update the first set of reference signals. The indication is used for instructing the terminal to update a first reference signal set according to the indication, wherein the first reference signal set is a reference signal set used for beam failure detection in the terminal-side physical layer.

In a possible implementation manner, the processor is further configured to receive the second signaling through the interface.

The communication device can be a terminal or a chip; the memory may be integrated on the same chip as the processor or may be separately provided on different chips.

In an eighth aspect, an embodiment of the present application provides a communication apparatus, including: an interface and a processor, the interface and the processor coupled.

The processor is configured to generate a third signaling, where the third signaling is an MAC layer signaling or a physical layer signaling; and sending the third signaling to the terminal through the interface, where the third signaling is used for the terminal to update a first reference signal set, and the first reference signal set is a reference signal set used for beam failure detection in the terminal physical layer.

In a possible implementation manner, the processor is further configured to send, to the terminal through the interface, a fourth signaling before sending, to the terminal through the interface, where the fourth signaling includes an identifier of one or more reference signals, and the fourth signaling is MAC layer signaling or physical layer signaling;

In one possible implementation, the processor is configured to generate an indication and to send the indication through the interface. The indication is used for instructing the terminal to update a first reference signal set according to the indication, wherein the first reference signal set is a reference signal set used for beam failure detection in the terminal-side physical layer.

In a possible implementation manner, the processor is further configured to send the fourth signaling through the interface.

The communication device can be a network device or a chip; the memory may be integrated on the same chip as the processor or may be separately provided on different chips.

In a ninth aspect, an embodiment of the present application provides a communication apparatus, including: a memory, a processor, and a receiver, the memory, the receiver, and the processor being coupled.

The memory to store program instructions;

the processor is used for calling the program instructions in the memory to execute:

receiving, by the receiver, a first signaling from a network device, where the first signaling is MAC layer signaling or physical layer signaling, and the first signaling is used to update a first reference signal set; and updating the first reference signal set according to the first signaling, wherein the first reference signal set is a reference signal set used for beam failure detection in a terminal physical layer.

In a possible implementation manner, the processor is further configured to receive, by the receiver, second signaling from the network device before updating the first reference signal set according to the first signaling, where the second signaling is used to instruct to update the first reference signal set according to an identifier of one or more reference signals included in the first signaling, and the second signaling is MAC layer signaling or physical layer signaling.

In one possible implementation, the processor is specifically configured to:

In one possible implementation, the processor is further configured to:

and updating a second reference signal set according to the first signaling, wherein the second reference signal set is a reference signal set used for beam failure detection in a Radio Resource Control (RRC) layer of the terminal.

In one possible implementation, the processor is configured to receive an indication through a receiver and update the first set of reference signals. The indication is used for instructing the terminal to update a first reference signal set according to the indication, wherein the first reference signal set is a reference signal set used for beam failure detection in the terminal-side physical layer.

In a possible implementation manner, the processor is further configured to receive the second signaling through the receiver.

In a tenth aspect, an embodiment of the present application provides a communication apparatus, including: a memory, a processor, and a transmitter, the memory, the transmitter, and the processor coupled.

The memory to store program instructions;

generating a third signaling, wherein the third signaling is an MAC layer signaling or a physical layer signaling; and sending the third signaling to the terminal through the transmitter, wherein the third signaling is used for the terminal to update a first reference signal set, and the first reference signal set is a reference signal set used for beam failure detection in a physical layer of the terminal.

In a possible implementation manner, the processor is further configured to send, by the transmitter, fourth signaling to the terminal before sending, by the transmitter, the third signaling to the terminal, where the fourth signaling includes an identifier of one or more reference signals, and the fourth signaling is MAC layer signaling or physical layer signaling;

In one possible implementation, the processor is configured to generate an indication and to send the indication via a transmitter. The indication is used for instructing the terminal to update a first reference signal set according to the indication, wherein the first reference signal set is a reference signal set used for beam failure detection in the terminal-side physical layer.

In a possible implementation manner, the processor is further configured to send the fourth signaling through the transmitter.

In an eleventh aspect, an embodiment of the present application provides a processor, including:

at least one circuit configured to receive a first signaling from a network device, the first signaling being MAC layer signaling or physical layer signaling, the first signaling being configured to update a first set of reference signals.

At least one circuit configured to update the first set of reference signals according to the first signaling, where the first set of reference signals is a set of reference signals used for beam failure detection in a terminal physical layer.

In a possible implementation manner, the at least one circuit is further configured to receive, from the network device, second signaling, where the second signaling is used to instruct to update the first reference signal set according to an identifier of one or more reference signals included in the first signaling, and the second signaling is MAC layer signaling or physical layer signaling.

In one possible implementation, the at least one circuit is specifically configured to:

In one possible implementation, the at least one circuit is further configured to:

In one possible implementation, the at least one circuit is configured to receive an indication, where the indication is used to instruct a terminal to update a first reference signal set according to the indication, where the first reference signal set is a reference signal set used for beam failure detection in a physical layer at the terminal side.

At least one circuit configured to update the first set of reference signals.

In a possible implementation, the at least one circuit is further configured to receive the second signaling.

The processor may be a chip.

In a possible implementation manner of the fifth, seventh, ninth, and eleventh aspects, the indication is the first signaling.

In a twelfth aspect, an embodiment of the present application provides a processor, including:

at least one circuit configured to generate a third signaling, where the third signaling is MAC layer signaling or physical layer signaling.

At least one circuit configured to send the third signaling to a terminal, where the third signaling is used for the terminal to update a first set of reference signals, and the first set of reference signals is a set of reference signals used for beam failure detection in a physical layer of the terminal.

In a possible implementation manner, the at least one circuit is further configured to send a fourth signaling to the terminal, where the fourth signaling includes an identifier of one or more reference signals, and the fourth signaling is MAC layer signaling or physical layer signaling;

In one possible implementation, the at least one circuit is configured to generate an indication, where the indication is used to instruct a terminal to update a first reference signal set according to the indication, where the first reference signal set is a reference signal set used for beam failure detection in a physical layer at a terminal side.

At least one circuit configured to transmit the indication.

In a possible implementation, the at least one circuit is further configured to send the fourth signaling.

The processor may be a chip.

In a possible implementation manner of the sixth aspect, the eighth aspect, the tenth aspect, or the twelfth aspect, the indication is the third signaling.

In a possible implementation manner of at least one of the first to twelfth aspects, the identifier of the reference signal is an identifier of a non-zero power channel state information reference signal resource.

In a possible implementation manner of at least one of the first aspect to the twelfth aspect, the MAC layer signaling is a MAC Control Element (CE).

In a possible implementation form of at least one of the above fifth to twelfth aspects, the Indication is a TCI State Indication.

In a possible implementation manner of at least one of the fifth to twelfth aspects, the indication is further used for indicating an identity of a reference signal.

In a possible implementation manner of at least one of the fifth to twelfth aspects, the indication further includes an identification of a reference signal.

In a possible implementation manner of at least one of the above fifth to twelfth aspects, the indication is underlying signaling.

In a thirteenth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, and the computer program includes at least one piece of code, where the at least one piece of code is executable by a computer to control the computer to execute the communication method in the first aspect, the second aspect, the third aspect, or the fourth aspect.

In a fourteenth aspect, an embodiment of the present application provides a computer program, which is configured to execute the communication method according to the first aspect, the second aspect, the third aspect, or the fourth aspect when the computer program is executed by a computer.

The program may be stored in whole or in part on a storage medium packaged with the processor, or in part or in whole on a memory not packaged with the processor.

Drawings

Fig. 1 is a schematic diagram of a communication system provided in an embodiment of the present application;

fig. 2 is a schematic diagram of a protocol stack of a network device according to an embodiment of the present application;

fig. 3 is a flowchart of a communication method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to another embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to another embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to another embodiment of the present application;

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

fig. 9 is a schematic structural diagram of a communication device according to another embodiment of the present application.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application. Where the terms "first," "second," "third," "fourth," and the like (if any) in the description and claims of this application and in the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged where appropriate, for example: the "third signaling" in the claims is in some cases "first signaling" and in other cases "second signaling".

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application, and as shown in fig. 1, the communication system includes a network device and a terminal.

A network device: also called Radio Access Network (RAN) device, which is a device for accessing a terminal to a wireless Network, may be an evolved Node B (eNB or eNodeB) in Long Term Evolution (LTE), or a relay station or an Access Point, or a base station in a 5G Network, such as a Transmission and Reception Point (TRP) and a controller, but is not limited herein. In a possible manner, the access network device may be a base station (e.g. a gNB) of a CU and DU separation architecture, as shown in fig. 2, and fig. 2 is a schematic protocol stack diagram of a network device according to an embodiment of the present disclosure. The RAN device may be connected to a core network device (for example, the core network may be a core network of LTE, or a core network of 5G). CU and DU can be understood as the division of the base stations from a logical functional point of view. CUs and DUs may be physically separate or deployed together. A plurality of DUs can share one CU. A DU may also connect multiple CUs (not shown). The CU and DU may be connected via an interface, such as an F1 interface. CUs and DUs may be partitioned according to protocol layers of the wireless network. Functions of Radio Resource Control (RRC), Service Data Adaptation Protocol (SDAP), and Packet Data Convergence Protocol (PDCP) layers are set in the CU, and functions of Radio Link Control (RLC), Media Access Control (MAC) layer, Physical (PHY) layer, and the like are set in the DU. It is to be understood that the division of CU and DU processing functions according to such protocol layers is merely an example, and may be performed in other manners. For example, a CU or DU may be partitioned to have more protocol layer functionality. For example, a CU or DU may also be divided into partial processing functions with protocol layers. In one design, some of the functions of the RLC layer and the functions of protocol layers above the RLC layer are provided in the CUs, and the remaining functions of the RLC layer and the functions of protocol layers below the RLC layer are provided in the DUs. In another design, the functions of a CU or DU may also be divided according to traffic type or other system requirements. For example, dividing by time delay, setting the function that processing time needs to meet the time delay requirement in DU, and setting the function that does not need to meet the time delay requirement in CU. In another design, a CU may also have one or more functions of the core network. One or more CUs may be centrally located or separately located. For example, the CUs may be located on the network side to facilitate centralized management. The DU may have multiple rf functions, or may have a remote rf function.

The functionality of a CU may be implemented by one entity or by different entities. For example, the functionality of the CU may be further split, e.g. the Control Plane (CP) and the User Plane (UP) are separated, i.e. the control plane (CU-CP) and the CU user plane (CU-UP) of the CU. For example, the CU-CP and CU-UP may be implemented by different functional entities, which may be coupled with the DUs to collectively perform the functions of a base station. In one possible approach, the CU-CP is responsible for the control plane functions, mainly including RRC and PDCP-C. The PDCP-C is mainly responsible for encryption and decryption of control plane data, integrity protection, data transmission and the like. The CU-UP is responsible for user plane functions, including mainly SDAP and PDCP-U. Where the SDAP is primarily responsible for processing data of the core network and mapping data flows (flows) to bearers. The PDCP-U is mainly responsible for encryption and decryption of a data plane, integrity protection, header compression, serial number maintenance, data transmission and the like. Wherein the CU-CP and CU-UP are connected via the E1 interface. The CU-CP represents the connection of the gNB to the core network via the Ng interface. Via F1-C (control plane) and DU connection. CU-UP is connected with DU via F1-U (user plane). Of course, there is also a possible implementation where PDCP-C is also in CU-UP.

A terminal: the wireless terminal can be a wireless terminal or a wired terminal, and the wireless terminal can be a device with a wireless transceiving function, can be deployed on land, and comprises indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like, which are not limited herein. It can be understood that, in the embodiment of the present application, a terminal may also be referred to as a User Equipment (UE).

The following explains the protocol layers of the wireless network.

RRC layer: the method is used for executing broadcasting, paging, RRC connection establishment, radio bearer control, mobility management, terminal measurement reporting control and the like.

The PDCP layer: services such as security, header compression, ciphering, etc. may be performed, and the PDCP layer may correspond to a plurality of PDCP entities, each of which carries data of one Radio Bearer (RB).

And the RLC layer: performing services such as segmentation, reassembly, retransmission, etc., the RLC layer may correspond to a plurality of RLC entities, each of which provides services for a corresponding PDCP entity.

And a MAC layer: data transmission services are provided for traffic on logical channels, and acknowledgement and negative services such as scheduling, Hybrid Automatic Repeat reQuest (HARQ) are performed.

PHY layer: data passed down from the MAC layer is encoded and transmitted.

In the embodiment of the present application, english of a beam may be written as beam. The beams may include transmit beams and receive beams. The transmission beam may refer to the distribution of signal strength formed in different spatial directions after the signal is transmitted through the antenna, and the reception beam may refer to the distribution of signal strength of the wireless signal received from the antenna in different spatial directions. It is to be understood that one or more antenna ports of a beam may also be considered as a set of antenna ports, that is to say that one set of antenna ports comprises at least one antenna port.

Specifically, the beam may refer to a precoding vector having a certain energy transmission directivity, and the precoding vector can be identified by the identification information, where the energy transmission directivity refers to that, in a certain spatial position, a signal subjected to precoding processing by the precoding vector has a good receiving power, such as meeting a receiving demodulation signal-to-noise ratio, and in other spatial positions, a signal subjected to precoding processing by the precoding vector has a low receiving power, such as not meeting the receiving demodulation signal-to-noise ratio. Different communication devices may have different precoding vectors, i.e. correspond to different beams, and one communication device may use one or more of a plurality of different precoding vectors at the same time, i.e. may form one beam or a plurality of beams at the same time, depending on the configuration or capabilities of the communication device. The beams may be understood as spatial resources. A beam may be identified by an identifier, and optionally, the identifier may correspond to a resource Identifier (ID) corresponding to the user, for example, the identifier may correspond to an ID or a resource of a configured Channel state information Reference Signal (CSI-RS); or may be an ID or a resource of a correspondingly configured uplink Sounding Reference Signal (SRS). Alternatively, the identification may also be identification information explicitly or implicitly carried by a Signal or channel carried by a beam, for example, the identification includes, but is not limited to, a Synchronization Signal or a broadcast channel transmitted through the beam to indicate an identification of the beam, and includes, but is not limited to, a Synchronization Signal block (SS block) transmitted through the beam to indicate an identification of the beam (e.g., SS block index), where the SS block (SSB) includes at least a Primary Synchronization Signal (PSS) and/or a secondary Synchronization Signal (SSs) and/or a broadcast channel (PBCH). Wherein, the CSI-RS can be used to indicate the beam direction, and the CSI-RS can be used to measure the signal strength and/or the signal quality, etc. The SRS may also be used to indicate a beam direction, and may be used for uplink synchronization, uplink beam management, and the like.

Fig. 3 is a flowchart of a communication method according to an embodiment of the present application, and as shown in fig. 3, the method according to the embodiment may include:

optionally, S301, the network device determines that a service beam of the terminal changes.

S302, the network equipment generates a first signaling.

S303, the network equipment sends the first signaling to the terminal.

In this embodiment, the network device generates the first signaling, then sends the first signaling to the terminal, and accordingly, the terminal receives the first signaling from the network device. In this embodiment, the first signaling is MAC layer signaling, or the first signaling is physical layer signaling. Alternatively, the MAC layer signaling may be MAC CE.

Optionally, the network device may generate a first signaling after a serving beam of the terminal is changed, and then send the first signaling to the terminal, where the serving beam of the terminal refers to a beam used by the terminal to communicate with the network device. For determining that the serving beam of the terminal changes by the network device, reference may be made to related descriptions in the prior art, which are not described herein again.

S304, the terminal updates the first reference signal set according to the first signaling.

In this embodiment, the first signaling may be used to update the first reference signal set, so that after receiving the first signaling, the terminal updates the first reference signal set according to the first signaling. The first set of reference signals is a set of reference signals used for beam failure detection in a physical layer of the terminal. Wherein, the reference signal set for beam failure detection in the terminal physical layer may be configured by the terminal RRC layer and/or the MAC layer to the physical layer. Therefore, the present embodiment may update the reference signal set configured by the RRC and/or MAC layer to the physical layer for beam failure detection through the first signaling. Then, the terminal can perform beam failure detection according to the updated first reference signal set, so as to avoid the phenomenon of beam failure and false detection.

Wherein the first reference signal set comprises identities of one or more reference signals, the identities of the reference signals in the first reference signal set comprising at least one of: identification of SSB, identification of CSI-RS. The SSB may be identified as a time index (time index). The reference signals used for beam failure detection in the first set of reference signals may be SSBs and/or CSI-RSs.

In one case, the first signaling itself may indicate to update the first reference signal set, and accordingly, the terminal updates the first reference signal set according to the indication of the first signaling. The first signaling may be new signaling, such as new MAC layer signaling or new physical layer signaling.

In another case, the first signaling does not indicate updating the first reference signal set by itself, the first signaling is a trigger condition for the terminal to update the first reference signal set, and the terminal updates the first reference signal set as long as the first signaling is received. The first signaling may be existing signaling, for example, existing signaling including a transport configuration number status indication TCI State indication.

Optionally, in some embodiments, the present embodiment may further perform the following S305.

S305, the terminal updates the second reference signal set according to the first signaling.

In this embodiment, the terminal may further update the second reference signal set according to the first signaling after receiving the first signaling. The second set of reference signals is a set of reference signals used for beam failure detection in the RRC layer of the terminal. The reference signal set for beam failure detection in the terminal RRC layer may be configured by the network device to the terminal RRC layer through RRC layer signaling. In some embodiments, the first set of reference signals is a subset of the second set of reference signals.

In other embodiments, after receiving the first signaling, the terminal does not perform S304, i.e., does not update the second reference signal set according to the first signaling. It can also be considered that the terminal updates the second reference signal set after receiving RRC signaling.

In some embodiments, the first set of reference signals may be represented by q₀The second set of reference signals may be denoted by q₁And (4) showing.

In the communication method provided by this embodiment, after the terminal receives the first signaling from the network device, the first reference signal set is updated according to the first signaling, and the first signaling is MAC layer signaling or physical layer signaling. Because the time delay of the MAC layer signaling or the physical layer signaling is short, after the terminal changes the service wave beam, the first reference signal set can be quickly updated through the first signaling, and the time for continuing the wave beam failure detection according to the previous first reference signal set is reduced, so that the phenomenon that the wave beam failure occurs in the process of false detection is reduced, the frequency of communication interruption is reduced, and the communication quality is improved.

In some embodiments, the first signaling comprises: identification of one or more reference signals. Correspondingly, when the terminal updates the first reference signal set according to the first signaling, the specific implementation process may be: the terminal updates the first reference signal set according to the identification of one or more reference signals included in the first signaling.

Optionally, the network device of this embodiment may further send a second signaling to the terminal, where the second signaling is used to indicate that the first reference signal set is updated according to the identifier of the one or more reference signals included in the first signaling, and the second signaling is MAC layer signaling or physical layer signaling. Accordingly, the terminal receives second signaling from the network device, determines from the second signaling that the first signaling can be used to update the first set of reference signals for the terminal, and then updates the first set of reference signals according to the identity of one or more reference signals in the first signaling.

It should be noted that, in some embodiments, the first signaling may be referred to as third signaling or fourth signaling. In some embodiments, the second signaling described above may be referred to as third signaling.

The process of updating the first reference signal set by the terminal may include the following several ways:

in a first approach, the terminal adds all of the identities of the one or more reference signals to the first set of reference signals. For example: if the first reference signal set comprises at most 2 reference signal identities, the first reference signal set already comprises 1 reference signal identity before the updating, and the first signaling comprises 1 reference signal identity, the terminal may add the reference signal identity in the first signaling to the first reference signal set.

In a second approach, the terminal adds the identified portions of the one or more reference signals to the first set of reference signals. For example: if the first reference signal set comprises at most 2 reference signal identities, the first reference signal set already comprises 1 reference signal identity before the updating, and the first signaling comprises 2 reference signal identities, the terminal may add the 1 reference signal identity in the first signaling to the first reference signal set.

In a third way, the terminal replaces the identities of the reference signals in the first reference signal set with all the identities of the one or more reference signals. For example: if the first reference signal set comprises at most 2 reference signal identities, the first reference signal set already comprises the 2 reference signal identities before the updating, and the first signaling comprises the 2 reference signal identities, the terminal may replace the 2 reference signal identities in the first reference signal set with the 2 reference signal identities in the first signaling.

In a fourth mode, the terminal replaces the identities of the reference signals in the first set of reference signals with the identified portions of the one or more reference signals. For example: if the first reference signal set comprises at most 2 reference signal identities, the first reference signal set already comprises 2 reference signal identities before the updating, and the first signaling comprises 3 reference signal identities, the terminal may replace the 2 reference signal identities in the first signaling with the 2 reference signal identities in the first reference signal set.

In some embodiments, the above modes can also be implemented in combination with each other, for example: if the first reference signal set comprises at most 2 reference signal identities, the first reference signal set already comprises 1 reference signal identity before the updating, and the first signaling comprises 2 reference signal identities, the terminal may replace the 1 reference signal identity in the first signaling with the 1 reference signal identity in the first reference signal set, and add the 1 other reference signal identity in the first signaling to the first reference signal set.

For the way in which the terminal updates the second reference signal set, reference may be made to the description of the way in which the terminal updates the first reference signal set, and details are not described here again.

Several embodiments are described below for a scheme in which the first signaling includes identification of one or more reference signals.

In a first implementation manner, a network device sends a first signaling to a terminal, the first signaling includes identification of one or more reference signals, and the first signaling is used for indicating: the beam for the network device to transmit the one or more reference signals to the terminal may be quasi-collocated with the beam for the network device to transmit the PDCCH to the terminal, and the quasi-collocated beam for the network device to transmit the one or more reference signals and the beam for the PDCCH may indicate that the one or more reference signals are used for the terminal to receive the PDCCH. Since the beam transmitting the reference signal in the first reference signal set is quasi-collocated with the beam transmitting the PDCCH, the reference signal transmitted by the beam quasi-collocated with the beam transmitting the PDCCH can be considered as the reference signal in the first reference signal set, so that the terminal of this embodiment can determine that the one or more reference signals can be used for performing beam failure detection after receiving the first signaling, and then update the first reference signal set according to the identifier of the one or more reference signals in the first signaling. In some implementations, the first signaling is existing signaling, and may be, for example, a TCI State Indication for UE-specific PDCCH.

For example: the standards may specify: when a serving beam of the terminal changes due to movement or the like (i.e., a beam monitoring the PDCCH changes), the terminal automatically updates a beam for beam failure detection accordingly. Updating the beam for beam failure detection may be embodied in updating a reference signal set for beam failure detection in a terminal physical layer.

The method specifically comprises the following steps: the terminal receives a TCI State Indication for UE-specific PDCCH of the MAC layer from the network device, and uses the received TCI State Indication for UE-specific PDCCH for beam detection (beam detection), that is, updates a set of reference signals (beam failure detection RS set) for beam failure detection in the terminal physical layer according to the identification of one or more reference signals in the TCI State Indication for UE-specific PDCCH, and obtains a new set of reference signals. The terminal may then perform beam failure detection based on the new reference signal set, i.e., determine whether to send a beam failure event (beam failure event).

In addition, after the terminal receives the TCI State Indication for UE-specific PDCCH, the terminal may automatically update a reference signal set (detection Resource set) for beam failure detection in the terminal RRC layer; or the terminal does not update the reference signal set for beam failure detection in the RRC layer unless the terminal receives an RRC reconfiguration command sent by the network device; alternatively, the terminal also receives a new explicit lower layer signaling (MAC layer signaling or physical layer signaling), and the new explicit lower layer signaling is used to indicate: and the terminal updates a reference signal set for beam failure detection in the RRC layer according to the identification of the reference signal in the TCI State Indication for UE-specific PDCCH, and then updates the reference signal set for beam failure detection in the RRC layer according to the newly added display low-layer signaling.

Based on the above, in order to implement the above scheme, the MAC protocol may be modified to:

The MAC entity shall:

if the MAC entity receives a TCI State Indication for UE-specific PDCCH MAC CE on a Serving Cell:

1>indicate to lower layers the information regarding the TCI State Indication for UE-specific PDCCH MAC CE.

2>indicate to lower layers the information regarding the TCI State Indication for beam failure detection MAC CE.

the physical layer protocol may be augmented with the following:

if the UE receives the beam indicating switching monitoring of the PDCCH, the reference signal of the beam failure detection is automatically updated correspondingly. (If a UE has been left instructed to switch beam for monitoring PDCCH, the BFD RS are updated automatically and monitoring.)

Therefore, in this embodiment, the existing MAC layer signaling is used to update: the reference signal set used for beam failure detection in the terminal physical layer is equivalent to the existing signaling implicit indication updating the reference signal set, so that the phenomenon that beam failure occurs due to false detection can be reduced, the frequency of communication interruption is reduced, the communication quality is improved, and the signaling content transmitted between the terminal and the network equipment does not need to be changed.

In a second implementation manner, the network device sends a first signaling to the terminal, where the first signaling includes an identification of one or more reference signals, and the first signaling is used to indicate: the identification of the one or more reference signals is used for the terminal to receive the PDCCH. The first signaling may be the existing signaling, for example, may be the TCI State Indication for UE-specific PDCCH. And the network device further sends a second signaling to the terminal, where the second signaling is a newly added signaling, the second signaling is a MAC layer signaling or a physical layer signaling, and the second signaling is used to instruct to update the first reference signal set according to the identifier of the one or more reference signals included in the first signaling. It should be noted that, the sequence of receiving the first signaling and the second signaling by the terminal is not limited. After receiving the first signaling and the second signaling, the terminal determines, according to the second signaling, that the identifier of the reference signal in the first signaling can be used to update the first reference signal set, and then the terminal updates the first reference signal set according to the identifier of the reference signal in the first signaling.

For example: the service beam of the terminal is changed, and the network device can instruct the terminal to update the reference signal set for beam failure detection in the physical layer of the terminal according to the identification of the reference signal in the existing signaling through a newly added explicit low-layer signaling (MAC layer signaling or physical layer signaling).

The method specifically comprises the following steps: the network device sends a TCI State Indication for UE-specific PDCCH to the terminal, and also sends a newly added signaling (such as MAC CE) to the terminal, wherein the newly added signaling indicates that a reference signal set used for beam failure detection in a terminal physical layer is updated according to the identification of a reference signal in the TCI State Indication for UE-specific PDCCH, so as to obtain a new reference signal set. Correspondingly, after the terminal receives the TCI State Indication for UE-specific PDCCH of the MAC layer from the network device and receives a newly added signaling (e.g., MAC CE), the terminal updates a reference signal set for beam failure detection in the physical layer according to an identifier of a reference signal in the TCI State Indication for UE-specific PDCCH, and then the terminal may perform beam failure detection based on the new reference signal set, i.e., determine whether to send a beam failure event.

In addition, after the terminal receives the newly added signaling, the terminal can also automatically update a reference signal set for beam failure detection in the terminal RRC layer according to the identification of the reference signal in the TCI State Indication for UE-specific PDCCH; or, the terminal does not update the reference signal set for beam failure detection in the RRC layer unless the terminal receives an RRC reconfiguration command sent by the network device.

Therefore, in this embodiment, an explicit signaling is added to indicate that the identifier of the reference signal in the existing MAC signaling is used to update the reference signal set for beam failure detection in the physical layer of the terminal, where the added explicit signaling is an MAC layer signaling, and because the time delay of the MAC layer signaling is short, the terminal can quickly update the reference signal set for beam failure detection in the physical layer, thereby reducing the phenomenon of beam failure due to false detection, reducing the number of times of communication interruption, and improving the communication quality. In addition, because the newly added signaling is an indication signaling and does not need to carry the identifier of the reference signal, the network overhead of the newly added signaling is low.

In a third implementation manner, a terminal receives a first signaling from a network device, where the first signaling includes identities of one or more reference signals, and the first signaling is used to instruct to update a first reference signal set according to the identities of the one or more reference signals, where the first signaling is a new signaling, and the first signaling is MAC layer signaling or physical layer signaling. After receiving the first signaling, the terminal determines that the identifier of the reference signal in the first signaling can be used for updating the first reference signal set according to the indication of the first signaling, and then the terminal updates the first reference signal set according to the identifier of the reference signal in the first signaling.

Optionally, the reference signal is a reference signal of a candidate beam of the terminal. Wherein the candidate beam is often a beam adjacent to the serving beam of the terminal. Since the quality of the service beam caused by the movement of the terminal is not good, generally, the quality of the adjacent beam received by the terminal becomes good, so that the network device may configure the candidate beam in advance, and when the beam detection fails, the terminal may try to find a new beam among the candidate beams as the service beam to perform the beam failure recovery. Therefore, after the service beam of the terminal is changed, the changed service beam belongs to the candidate beam, so the first reference generated signal set is updated according to the reference signal of the candidate beam, and the updated first reference signal set can reduce the number of times of misdetection that the beam failure phenomenon occurs.

For example: the network device indicates to the terminal through the MAC CE the identity (e.g., NZP-CSI-RS-Resource ID) of some or some two reference signals in the candidate Beam's reference signal set (candidate Beam RS List) to update the reference signal set for Beam failure detection in the terminal's physical layer.

The method specifically comprises the following steps: the network equipment sends a newly added MAC CE to the terminal, wherein the newly added MAC CE comprises: one or two NZP-CSI-RS-Resource IDs in the reference signal set (candidate Beam RS List) of the candidate Beam. And the newly added MAC CE indicates to update the reference signal set for beam failure detection in the physical layer according to the identification of the one or two reference signals. And after receiving the newly added MAC CE, the terminal updates a reference signal set for beam failure detection in a physical layer according to the NZP-CSI-RS-Resource ID in the newly added MAC CE. The terminal may then perform beam failure detection based on the new set of reference signals, i.e., determine whether to transmit a beam failure event.

In a possible scenario, after receiving a beam failure recovery request response from the network side, the terminal receives the newly added MAC CE, and the newly added MAC CE may be carried in a PDSCH scheduled by a PDCCH that the network device responds to the BFRQ.

In addition, after the terminal receives the newly added MAC CE, the terminal may also automatically update a reference signal set for beam failure detection in the terminal RRC layer according to the identifier of the reference signal in the newly added MAC CE; or, the terminal does not update the reference signal set for beam failure detection in the RRC layer unless the terminal receives an RRC reconfiguration command sent by the network device.

Therefore, in this embodiment, an MAC CE is newly added, where the MAC CE carries an identifier of a reference signal, and the MAC CE instructs to update a reference signal set for beam failure detection in a physical layer of the terminal according to the identifier of the reference signal carried by the MAC CE.

In other embodiments, the first signaling similar to the above embodiments includes: the difference between the identities of one or more reference signals is that the first signaling in this embodiment does not include the identity of the reference signal, but rather the first signaling indicates the identity of the reference signal. Accordingly, the terminal may determine the identities of the one or more reference signals indicated by the first signaling according to the first signaling, and then update the first reference signal set according to the identities of the one or more reference signals.

In one implementation, a network device sends a first signaling to a terminal, where the first signaling is used to instruct to update a first reference signal set according to a reference signal set of a candidate beam, and the first signaling is a newly added signaling. After receiving the first signaling from the network device, the terminal determines to update the first reference signal set according to the reference signal set of the candidate beam according to the first signaling, where the terminal knows which reference signals the reference signal set of the candidate beam includes, for example, the reference signal set of the candidate beam includes the identities of one or more reference signals, and then the terminal updates the first reference signal set according to the identities of the one or more reference signals.

For example, the network apparatus indicates, to the terminal through the MAC CE, a set of reference signals (candidate Beam RS List) of candidate beams for updating a set of reference signals for Beam failure detection in the physical layer.

The method specifically comprises the following steps: the network equipment sends a newly added MAC CE to the terminal, and the newly added MAC CE instructs to update a reference signal set used for Beam failure detection in a physical layer according to NZP-CSI-RS-Resource ID in a candidate Beam reference signal set (candidate Beam RS List). After receiving the newly added MAC CE, the terminal acquires the NZP-CSI-RS-Resource ID in the reference signal set of the candidate beam according to the newly added MAC CE, and then updates the acquired NZP-CSI-RS-Resource ID in the reference signal set for beam failure detection in the physical layer. The terminal may then perform beam failure detection based on the new set of reference signals, i.e., determine whether to transmit a beam failure event.

Therefore, in this embodiment, an MAC CE is newly added, and the MAC CE instructs to update the reference signal set for beam failure detection in the physical layer of the terminal according to the reference signal set of the candidate beam, so that the terminal can quickly update the reference signal set for beam failure detection in the physical layer, thereby reducing the phenomenon that beam failure occurs due to false detection, reducing the number of times of communication interruption, and improving the communication quality. In addition, because the newly added MAC CE is an indication signaling and does not need to carry the identifier of the reference signal, the network overhead of the newly added MAC CE is low.

It is to be understood that, in the above embodiments, the method or step implemented by the terminal may also be implemented by a component (e.g., a chip or a circuit, etc.) available for the terminal, and the method or step implemented by the network device may also be implemented by a component (e.g., a chip or a circuit, etc.) available for the network device.

Fig. 4 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application, as shown in fig. 4, the communication apparatus may be a terminal, or may be a component (e.g., an integrated circuit, a chip, or the like) of the terminal, or may be another communication module, configured to implement operations or steps corresponding to the terminal in the foregoing method embodiments, where the communication apparatus 400 may include: a receiving module 401 and a processing module 402.

The receiving module 401 may be configured to implement a receiving function of the terminal in each method embodiment, and the processing module 402 may be configured to implement an updating function of the terminal in each method embodiment.

The communication apparatus of this embodiment may be configured to execute the technical solutions of the terminals in the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.

Fig. 5 is a schematic structural diagram of a communication apparatus according to another embodiment of the present application, as shown in fig. 5, the communication apparatus may be a network device, or may be a component (e.g., an integrated circuit, a chip, or the like) of the network device, or may be another communication module, and is used to implement operations or steps corresponding to the network device in the foregoing method embodiments, and the communication apparatus 500 may include: a processing module 501 and a sending module 502.

The processing module 501 may be configured to implement a generating function of the network device in each of the above method embodiments, and the sending module 502 may be configured to implement a sending function of the network device in each of the above method embodiments.

The communication apparatus of this embodiment may be configured to execute the technical solutions of the network devices in the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.

Fig. 6 is a schematic structural diagram of a communication apparatus according to another embodiment of the present application, as shown in fig. 6, the communication apparatus may be a terminal, or may be a component (e.g., an integrated circuit, a chip, or the like) of the terminal, or may be another communication module, configured to implement operations or steps corresponding to the terminal in the foregoing method embodiments, and the communication apparatus 600 may include: an interface 601 and a processor 602, said interface 601 and said processor 602 being coupled.

The processor 602 may be configured to implement an update function of the terminal in each method embodiment, and may also implement a receiving function of the terminal in each method embodiment through the interface 601.

Fig. 7 is a schematic structural diagram of a communication apparatus according to another embodiment of the present application, as shown in fig. 7, the communication apparatus may be a network device, or may be a component (e.g., an integrated circuit, a chip, or the like) of the network device, or may be another communication module, and is configured to implement operations or steps corresponding to the network device in the foregoing method embodiments, where the communication apparatus 700 may include: an interface 701 and a processor 702, said interface 701 and said processor 702 being coupled.

The processor 702 may be configured to implement a generating function of the network device in each method embodiment, and may also implement a sending function of the network device in each method embodiment through the interface 701.

Fig. 8 is a schematic structural diagram of a communication apparatus according to another embodiment of the present application, as shown in fig. 8, the communication apparatus may be a terminal, or may be a component (e.g., an integrated circuit, a chip, or the like) of the terminal, or may be another communication module, configured to implement operations or steps corresponding to the terminal in the foregoing method embodiments, and the communication apparatus 800 may include: a memory 801 and a processor 802, the memory 801 being coupled to the processor 802.

The memory 801 for storing program instructions

The processor 802 is configured to call the program instructions in the memory 801 to enable the communication apparatus 800 to execute the technical solution of the terminal in the above-mentioned method embodiments.

Fig. 9 is a schematic structural diagram of a communication apparatus according to another embodiment of the present application, as shown in fig. 9, the communication apparatus may be a network device, or may be a component (e.g., an integrated circuit, a chip, or the like) of the network device, or may be another communication module, and is configured to implement operations or steps corresponding to the network device in the foregoing method embodiments, where the communication apparatus 900 may include: a memory 901 and a processor 902, the memory 901 and the processor 902 being coupled.

The memory 901 is used for storing program instructions.

The processor 902 is configured to invoke the program instructions in the memory 901, so as to enable the communication apparatus 900 to execute the technical solution of the network device in the foregoing method embodiments.

It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation. Each functional module in the embodiments of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.

The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

In the above embodiments, the implementation may be wholly or partially realized 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 network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (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., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Claims

1. A method of communication, comprising:

receiving a first signaling from a network device, wherein the first signaling is a physical layer signaling, and the first signaling is used for updating a first reference signal set; the first signaling comprises a transmission configuration number status indication and identification of one or more reference signals; the first signaling is used for indicating: the network equipment transmits the beam of the one or more reference signals to a terminal, and the beam of the one or more reference signals is quasi-collocated with the beam of a Physical Downlink Control Channel (PDCCH);

and updating the first reference signal set according to the first signaling, wherein the first reference signal set is a reference signal set used for beam failure detection in a terminal physical layer.

2. The method of claim 1, further comprising, prior to the updating the first set of reference signals according to the first signaling:

receiving second signaling from the network device, the second signaling being used for indicating to update the first reference signal set according to the identification of one or more reference signals included in the first signaling, and the second signaling being physical layer signaling.

3. The method of claim 2, wherein the updating the first set of reference signals according to the first signaling comprises:

4. The method according to any one of claims 1-3, further comprising:

5. A method of communication, comprising:

generating a third signaling, wherein the third signaling is a physical layer signaling;

sending the third signaling to a terminal, where the third signaling is used for the terminal to update a first reference signal set, and the first reference signal set is a reference signal set used for beam failure detection in a physical layer of the terminal;

before the sending the third signaling to the terminal, the method further includes:

sending a fourth signaling to the terminal, wherein the fourth signaling is a physical layer signaling and comprises a transmission configuration number state indication and one or more reference signal identifiers; the fourth signaling is to indicate: and the beam for transmitting the one or more reference signals to the terminal by the network equipment is quasi-collocated with the beam for transmitting a Physical Downlink Control Channel (PDCCH).

6. The method of claim 5,

the third signaling is used for indicating to update the first reference signal set according to the identification of the one or more reference signals in the fourth signaling.

7. A communications apparatus, comprising: a memory and a processor, the memory and processor coupled;

the memory to store program instructions;

the processor is configured to invoke program instructions in the memory to cause the communication device to perform the communication method of any one of claims 1-4.

8. A communications apparatus, comprising: a memory and a processor, the memory and processor coupled;

the memory to store program instructions;

the processor is configured to invoke program instructions in the memory to cause the communication device to perform the communication method of any of claims 5 or 6.

9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program comprising at least one piece of code executable by a computer to control the computer to perform the communication method according to any one of claims 1 to 6.