CN114449562A

CN114449562A - Communication method, terminal device and network device

Info

Publication number: CN114449562A
Application number: CN202210061528.4A
Authority: CN
Inventors: 王连友
Original assignee: Zeku Technology Beijing Corp Ltd
Current assignee: Zeku Technology Beijing Corp Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-05-06
Anticipated expiration: 2042-01-19
Also published as: CN114449562B

Abstract

The application provides a communication method, terminal equipment and network equipment. The method comprises the following steps: the method comprises the step that a terminal device sends a first SRS to a network device, wherein the first SRS is used for diagnosing whether a first antenna port of the terminal device is abnormal or not. The terminal device and/or the network device may determine an abnormal situation of the first antenna port according to the first SRS. According to the abnormal condition of the first antenna port, the antenna port used for data transmission by the terminal equipment can be adjusted, so that the antenna ports which are not abnormal can normally communicate, and the uplink and downlink throughput when the antenna ports are abnormal is improved.

Description

Communication method, terminal device and network device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method, a terminal device, and a network device.

Background

The terminal device may include one or more antenna ports (ports). The error rate may increase when one or some of the antenna ports become abnormal or faulty. Since it is impossible to determine which antenna port or antenna ports are abnormal, the related art reduces the error rate by reducing the MCS level of scheduling, retransmission, and the like. It will be appreciated that this approach will result in a reduced throughput for all antenna ports, i.e. the antenna ports that are not faulty will also be affected by the faulty antenna ports. Therefore, when an abnormality occurs in one or some antenna ports of the terminal device, the uplink and downlink throughputs are greatly reduced.

Disclosure of Invention

In view of this, the present application provides a communication method, a terminal device, and a network device, so as to solve the problem of reduced uplink and downlink throughput caused by an abnormal antenna port.

In a first aspect, the present application provides a communication method, including: the terminal equipment sends a first SRS to the network equipment, and the first SRS is used for diagnosing a first antenna port of the terminal equipment.

In a second aspect, the present application provides a communication method, including: the network equipment receives a first SRS sent by the terminal equipment, and the first SRS is used for diagnosing a first antenna port of the terminal equipment.

In a third aspect, the present application provides a terminal device, including: a first sending unit, configured to send a first SRS to a network device, where the first SRS is used to diagnose whether a first antenna port of the terminal device is abnormal.

In a fourth aspect, the present application provides a network device, including a third receiving unit, configured to receive a first SRS sent by a terminal device, where the first SRS is used to diagnose whether a first antenna port of the terminal device is abnormal.

In a fifth aspect, the present application provides a terminal device, comprising a processor, a memory, and a communication interface, wherein the memory is used for storing one or more computer programs, and the processor is used for calling the computer programs in the memory to make the terminal device execute the method of the first aspect.

In a sixth aspect, the present application provides a network device comprising a processor, a memory for storing one or more computer programs, and a communication interface, the processor being configured to invoke the computer program in the memory to cause the network device to perform the method of the second aspect.

In a seventh aspect, an embodiment of the present application provides a communication system, where the system includes the terminal device and/or the network device described above. In another possible design, the system may further include other devices interacting with the terminal or the network device in the solution provided in this embodiment.

In an eighth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program causes a terminal device to perform some or all of the steps in the method of the first aspect.

In a ninth aspect, the present application provides a computer-readable storage medium, which stores a computer program, and the computer program causes a network device to execute some or all of the steps in the method of the second aspect.

In a tenth aspect, the present application provides a computer program product, wherein the computer program product comprises a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a terminal to perform some or all of the steps of the method of the first aspect. In some implementations, the computer program product can be a software installation package.

In an eleventh aspect, the present application provides a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a network device to perform some or all of the steps in the method of the second aspect. In some implementations, the computer program product can be a software installation package.

In a twelfth aspect, the present application provides a chip, where the chip includes a memory and a processor, and the processor can call and execute a computer program from the memory to implement part or all of the steps described in the method of the first aspect or the second aspect.

In a thirteenth aspect, there is provided a computer program product comprising a program for causing a computer to perform the method of the first aspect.

In a fourteenth aspect, there is provided a computer program product comprising a program for causing a computer to execute the method of the second aspect.

In a fifteenth aspect, a computer program is provided, which causes a computer to perform the method of the first aspect.

In a sixteenth aspect, a computer program is provided, which causes a computer to perform the method of the second aspect.

The terminal device and/or the network device may determine an abnormal condition of the first antenna port according to a first Sounding Reference Signal (SRS). According to the abnormal condition of the first antenna port, the antenna port used for data transmission by the terminal equipment can be adjusted, so that the antenna ports which are not abnormal can normally communicate, and the uplink and downlink throughput when the antenna ports are abnormal is improved.

Drawings

Fig. 1 is a schematic diagram of a communication system to which the present application may be applied.

Fig. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.

Fig. 3 is an exemplary diagram of diagnosing an SRS for a transmission port according to an embodiment of the present application.

Fig. 4 is an exemplary diagram of a first SRS resource set according to an embodiment of the present application.

Fig. 5 is an exemplary diagram of an SRS time domain resource according to an embodiment of the present application.

Fig. 6 is a diagram of another example of SRS time domain resources according to an embodiment of the present application.

Fig. 7 is a schematic flow chart of another communication method provided in the embodiment of the present application.

Fig. 8 is a schematic flowchart of another communication method provided in an embodiment of the present application.

Fig. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present application.

Fig. 11 is a schematic configuration diagram of a communication device according to an embodiment of the present application.

Detailed Description

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

Fig. 1 is a wireless communication system 100 to which an embodiment of the present application is applied. The wireless communication system 100 may include a network device 110 and a terminal device 120. Network device 110 may be a device that communicates with terminal device 120. Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices 120 located within that coverage area.

Fig. 1 exemplarily shows one network device and two terminals, and optionally, the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: a fifth generation (5G) system or a New Radio (NR), a Long Term Evolution (LTE) system, a Frequency Division Duplex (FDD) system, a Time Division Duplex (TDD) system, and the like. The technical scheme provided by the application can also be applied to future communication systems, such as a sixth generation mobile communication system, a satellite communication system and the like.

The terminal device in this embodiment may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a Mobile Station (MS), a Mobile Terminal (MT), a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a device providing voice and/or data connectivity to a user, and may be used for connecting people, things, and machines, such as a handheld device with a wireless connection function, a vehicle-mounted device, and the like. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a notebook computer, a palmtop computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), 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. Alternatively, the UE may be configured to act as a base station. For example, the UEs may act as scheduling entities that provide sidelink signals between UEs in V2X or D2D, etc. For example, cellular telephones and automobiles communicate with each other using sidelink signals. The communication between the cellular phone and the smart home device is performed without relaying communication signals through a base station.

The network device in the embodiments of the present application may be a device for communicating with a terminal device, and the network device may also be referred to as an access network device or a radio access network device, for example, the network device may be a base station. The network device in this embodiment may refer to a Radio Access Network (RAN) node (or device) that accesses a terminal device to a wireless network. The base station may broadly cover or replace various names such as: node b (NodeB), evolved node b (eNB), next generation base station (next generation NodeB, gNB), relay station, access point, transmission point (TRP), Transmission Point (TP), master station MeNB, secondary station SeNB, multi-mode wireless (MSR) node, home base station, network controller, access node, wireless node, Access Point (AP), transmission node, transceiver node, baseband Unit (BBU), Remote Radio Unit (RRU), Active Antenna Unit (AAU), Radio head (RRH), central Unit (central Unit, CU), Distributed Unit (DU), positioning node, and the like. The base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. A base station may also refer to a communication module, modem, or chip for locating within the aforementioned apparatus or devices. The base station may also be a mobile switching center and device-to-device D2D, a vehicle-to-apparatus (V2X), a device that assumes a base station function in machine-to-machine (M2M) communication, a network side device in a 6G network, a device that assumes a base station function in a future communication system, and the like. The base stations may support networks of the same or different access technologies. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices.

The base stations may be fixed or mobile. For example, a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to function as a device to communicate with another base station.

In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU. The gNB may also include AAU.

The network equipment and the terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons, and satellites. In the embodiment of the present application, the scenes where the network device and the terminal device are located are not limited.

It should be understood that all or part of the functionality of the communication device in the present application may also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (e.g., a cloud platform).

The terminal device may include one or more antenna ports. The antenna ports may be used for data transmission and/or reception. The error rate may increase when one or some of the antenna ports become abnormal or faulty. Since it is impossible to determine which antenna port or antenna ports are abnormal, the related art reduces the error rate by reducing the MCS level of scheduling, retransmission, and the like. It will be appreciated that this approach will result in a reduced throughput for all antenna ports, i.e. the antenna ports that are not faulty will also be affected by the faulty antenna ports. Therefore, when an abnormality occurs in one or some antenna ports of the terminal device, the uplink and downlink throughputs are greatly reduced.

In view of the above situation, the present application provides a communication method, which may be used to diagnose whether an antenna port of a terminal device is abnormal, and determine which antenna port of the terminal device is abnormal.

Fig. 2 is a schematic flowchart of a communication method according to an embodiment of the present application. The method shown in fig. 2 may be implemented by a terminal device and a network device. The method shown in fig. 2 may include step S210.

Step S210, the terminal device sends the first SRS to the network device.

The first SRS may be used to diagnose whether the first antenna port of the terminal device is abnormal. For example, the network device may measure the received first SRS, and obtain a measurement result of the first SRS. The network device and/or the terminal device may determine whether the first antenna port is abnormal according to the measurement result of the first SRS. In some embodiments, the SRS for diagnosis of the antenna port, similar to the first SRS, may be referred to as a port diagnostic SRS.

It should be noted that the first antenna port may be used for data transmission and/or data reception. That is, the first SRS may be used to diagnose the transmission antenna port and also may be used to diagnose the reception antenna port.

The terminal device and/or the network device may determine an abnormal situation of the first antenna port according to the first SRS. According to the abnormal condition of the first antenna port, the antenna port used for data transmission by the terminal equipment can be adjusted, so that the antenna ports which are not abnormal can normally communicate, and the uplink and downlink throughput when the antenna ports are abnormal is improved.

The terminal device may include one or more antenna ports. The first antenna port may be any one of one or more antenna ports. As an implementation, the first SRS may be transmitted through a first antenna port of the terminal device. It is to be understood that, in the case where the terminal device includes a plurality of antenna ports, the plurality of antenna ports may respectively correspond to one port diagnostic SRS. The SRS of the multiple port diagnostics may be transmitted on the corresponding antenna port.

Fig. 3 is an exemplary diagram of a transmission port diagnosing SRS according to an embodiment of the present application. The terminal device may include 4 antenna ports. The 4 antenna ports may be antenna port0, antenna port1, antenna port2, and antenna port3, respectively. The 4 antenna ports may correspond one-to-one with the 4 port diagnostic SRS. The terminal device may diagnose one or more of the SRS by transmitting the 4 ports to diagnose whether the corresponding antenna port is abnormal.

The first SRS may include an identification of the first antenna port, such that the first SRS corresponds to the first antenna port. For example, the resource parameters of the first SRS may include an identifier of an antenna port. The identification of the antenna port may be, for example, a port index (index).

Alternatively, the terminal device may transmit the first SRS multiple times. The terminal device and/or the network device may diagnose whether the first antenna port is abnormal or not by combining the measurement results of the first SRS for multiple times. It can be understood that, according to the measurement results of the first SRS a plurality of times, the error of the first SRS measurement can be avoided, so as to diagnose whether the first antenna port is abnormal more accurately.

The antenna port diagnostic event of the terminal device may be an emergency event, and thus, the first SRS may be an aperiodic SRS. Referring to the specification of the related art (e.g., 38.214 or 38.211 protocol), the first SRS may be triggered by Downlink Control Information (DCI). For example, the network device may send the first DCI to the terminal device. The first DCI may be used to schedule a first SRS. The first DCI may be used to indicate resources of the first SRS. For example, the first DCI may indicate a first SRS resource set (SRS resource set) for port diagnosis. Wherein the first set of SRS resources may include resources of the first SRS. It may be appreciated that the first DCI may indicate a plurality of SRS resource sets, each of which may be used for port diagnosis. The first set of SRS resources may be any one of a plurality of sets of SRS resources. The terminal device may parse the first DCI, thereby specifying the first SRS resource set, and perform transmission of the first SRS according to the scheduling configuration of the first DCI.

The number of SRS resources in the first set of SRS resources may be less than or equal to the number of antenna ports of the terminal device. Taking the number of antenna ports of the terminal device as 4 as an example, the number of SRS resources in the first SRS resource set may be less than or equal to 4. Fig. 4 is an exemplary diagram of a first SRS resource set according to an embodiment of the present application. The first set of SRS resources shown in fig. 4 may include 4 SRS resources for use in diagnosis of antenna ports of a terminal device including 4 ports. The 4 antenna ports of the terminal device can be respectively expressed as: port 0(port0), port 1(port1), port 2(port2), and port 3(port 3). The 4 SRS resources of the first set of SRS resources may be port 0SRS resource, port 1SRS resource, port 2SRS resource, and port 3SRS resource, respectively. The first SRS may be used to diagnose any one of the antenna ports of port0, port1, port2, and port 3. That is, the resource occupied by the first SRS may be any one of the port 0SRS resource, the port 1SRS resource, the port 2SRS resource, and the port 3SRS resource.

As an implementation, the network device may directly transmit a command to instruct the terminal device to transmit the first SRS. That is, the terminal device may passively trigger the first antenna port diagnostic procedure based on the first SRS. For example, the network device may itself transmit the first DCI to the terminal device to instruct the terminal device to transmit the first SRS.

The application does not limit the first trigger condition for the network device to instruct the terminal device to transmit the first SRS. The first trigger condition can be determined according to the MCS level, retransmission condition and measurement condition. For example, the first trigger condition may include one or more of the following conditions: the MCS level of the downlink transmission of the terminal equipment is reduced, the terminal equipment applies for the downlink retransmission to the network equipment, the network equipment initiates the uplink retransmission for a plurality of times, the MCS level of the uplink scheduling of the network equipment is greatly reduced, and the quality of the SRS or PUSCH DMRS signal measured by the network equipment is reduced (for example, the quality is lower than a threshold value for a plurality of times).

As another implementation, the terminal device may request transmission of the first SRS. I.e. the terminal device may actively trigger the first antenna port diagnosis based on the first SRS. For example, the terminal device may send a first message to the network device. The first message may be for requesting the network device to allocate resources of the first SRS. The first message may be carried by a PUSCH and/or a PUCCH. After receiving the first message, the network device may send the first DCI to the terminal device to schedule the first SRS.

The application does not limit the second trigger condition for the terminal device to request to initiate the first SRS. The second trigger condition can be determined according to the MCS level, retransmission condition and measurement condition. For example, the second trigger condition may include at least one of the following conditions: the MCS level of downlink transmission of the terminal device is lowered, the measurement result of the downlink CSI/SSB is poor (for example, the measurement result is lower than the threshold value for multiple times), and the network device initiates uplink retransmission for multiple times or the MCS level of uplink scheduling is lowered.

The network device may measure the first SRS, and obtain a measurement result of the first SRS. The measurement result may include, for example, a signal quality of the first SRS. The network device and/or the terminal device may determine whether the first antenna port corresponding to the first SRS is abnormal according to the measurement result of the first SRS. For example, if the measurement of the first SRS is below a threshold, it may be determined that the first antenna port is abnormal.

It is to be understood that the terminal device may transmit the first SRS multiple times. The network device may measure the first SRS which is transmitted multiple times, and the network device and/or the terminal device may determine whether the first antenna port corresponding to the first SRS is abnormal according to multiple measurement results of the first SRS. For example, if the measurement result n (n is an integer greater than 0) times of the first SRS is lower than or equal to the threshold, it may be determined that the first antenna port is abnormal. The abnormal condition of the first antenna port is determined by measuring results of the first SRS for a plurality of times, so that the measurement error of the first SRS can be avoided, and the diagnosis accuracy of the first antenna port is improved.

The network device may send the measurement result of the first SRS to the terminal device, so that the terminal device obtains the measurement result of the first SRS, and the terminal device determines whether the first antenna port is abnormal.

The network device may map the measurement result of the first SRS to a quantization level and transmit the quantization level to the terminal device as the measurement result of the first SRS. Each quantization scale may correspond to a measurement result range. It can be understood that the number of bits occupied by the quantization level may be the measurement result of the first SRS in the cell, and therefore, the network device transmits the quantization level to the terminal device, which may save signaling overhead for transmitting the measurement result of the first SRS.

The present application does not limit the number of quantization levels. For example, the number of quantization levels may be 16 levels, i.e. the measurement results of the first SRS may be mapped to 16 levels. It can be understood that the greater the number of quantization levels, the finer the accuracy of the representation of the measurement result of the first SRS by the quantization levels. The smaller the number of quantization levels, the less transmission resources occupied by the quantization levels, and the less signaling overhead occupied by transmitting the measurement result of the first SRS.

As one implementation, the quantization level of the measurement result of the first SRS may be transmitted through the second information. That is, the network device may transmit the second information to the terminal device, where the second information may include a quantization level of the measurement result of the first SRS. The second information may also include an identification of a first antenna port corresponding to the first SRS. The second information may be carried through DCI, for example.

The terminal device or the network device may adjust an antenna port for data transmission (transmission and/or reception) according to the detection result of the first SRS. For example, in the case that the first antenna port is abnormal, the network device and/or the terminal device may not use the first antenna port for data transmission, so that the antenna port without the abnormality may communicate normally (for example, transmit using a higher MCS). As an implementation, the network device may adjust the antenna ports used for transmission by configuring a codebook. For example, the network device may set the weighting coefficient of the antenna port where the abnormality occurs to 0 by selecting the codebook. As another implementation, the terminal device may adjust the use of the antenna port.

The present application does not limit the number of symbols (symbols) occupied by the first SRS, for example, the first SRS may occupy 1 symbol or 2 symbols.

Alternatively, the plurality of port diagnostic SRSs may be transmitted separately in the time domain. A guard interval may be included between two adjacent SRS resources. The guard interval may enable the end device to implement port switching. The guard interval may be, for example, 1 symbol.

Fig. 5 is an exemplary diagram of an SRS time domain resource according to an embodiment of the present application. Fig. 5 shows a port diagnostic SRS time domain resource distribution for a terminal device comprising 4 antenna ports. The first slot (slot) shown in fig. 5 may be any slot in the communication process. For example, the first time slot may be an nth time slot, n being an integer greater than 0. The antenna ports of the terminal device may include port0, port1, port2, and port 3. The port diagnostic SRS resource of the terminal device may include a port 0SRS resource, a port 1SRS resource, a port 2SRS resource, and a port 3SRS resource. Port 0SRS resources, port 1SRS resources, port 2SRS resources, and port 3SRS resources may correspond one-to-one to port0, port1, port2, and port3, respectively. As shown in fig. 5, each port diagnostic SRS resource may occupy 1 symbol. The guard interval may occupy 1 symbol. The distribution of the SRS resources may conform to the related art specifications, and the distribution of the SRS resources may be different depending on the related art specifications. For example, according to the NR rel16 protocol of the 5G system, the SRS can only occupy the last 12 symbols of a slot at most. According to the NR rel16 protocol of the 5G system, in the example shown in fig. 5, the SRS resource for port diagnosis may occupy the time domain resources from symbol 7 to symbol 13.

The embodiments provided in the present application can be applied to carrier aggregation. Carrier aggregation may enable aggregation of multiple carriers. The terminal device may send SRS diagnosed by ports corresponding to the antenna ports for the multiple carriers, respectively, to diagnose whether the antenna ports are abnormal in the frequency bands corresponding to the multiple carriers. The terminal device or the network device may adjust the scheme of using the antenna port on different frequency bands according to the measurement result of the network device on the SRS of different carriers.

For example, the plurality of carriers may include a first carrier and a second carrier. The terminal device may send a first SRS on the first carrier, or send a second SRS on the second carrier, where the first SRS may be used to diagnose whether the first antenna port is abnormal in the frequency band of the first carrier, and the second SRS may be used to diagnose whether the first antenna port is abnormal in the frequency band of the second carrier.

As an implementation, the port diagnostic SRS of multiple carriers may be transmitted separately in the time domain for the same antenna port. For example, the terminal device may transmit the port diagnostic SRS in turn, one carrier after another, in the time domain. Continuing with the above-described example of the first carrier and the second carrier, the time domain resource occupied by the first SRS and the time domain resource occupied by the second SRS may be different.

Fig. 6 is an exemplary diagram of a two-carrier SRS time domain resource according to an embodiment of the present disclosure. The terminal device may include 4 antenna ports, port0, port1, port2 and port3, respectively. For the first carrier, the port diagnostic SRS may occupy 1 symbol. For example, the first SRS may occupy any one of port 0SRS resource, port 1SRS resource, port 2SRS resource, and port 3SRS resource of the first carrier. For the second carrier, the port diagnostic SRS may occupy 2 symbols. The second SRS may occupy any one of port 0SRS resource, port 1SRS resource, port 2SRS resource, and port 3SRS resource of the second carrier. The port diagnostic SRS of the first carrier may be transmitted on the second time slot. The port diagnostic SRS of the second carrier may be transmitted on the third time slot. The second time slot may be an nth time slot, the third time slot may be an n +1 th time slot, and n may be an integer greater than 0.

As another embodiment, the port diagnostic SRSs of multiple carriers may be transmitted on the same time domain resource for the same antenna port, i.e., simultaneously. As an example of the first carrier and the second carrier, the first SRS and the second SRS may occupy the same time domain resource.

It can be understood that the time domain resources of the diagnostic SRS can be determined by the terminal capability of the ports of the multiple carriers. For example, if the terminal device's capability supports simultaneous SRS transmission on multiple carriers, the terminal device may transmit simultaneous SRS on the multiple carriers for ports diagnostic of different carriers. Alternatively, if the terminal device's capability does not support simultaneous SRS transmission on multiple carriers, the terminal device may transmit port diagnostic SRS of different carriers on different time domain resources.

It is to be understood that the terminal device may transmit the first SRS and the second SRS multiple times. The terminal device and/or the network device may determine whether the first antenna port is abnormal for the first carrier according to the measurement result of the first SRS for multiple times. Or, the terminal device and/or the network device may determine whether the first antenna port is abnormal for the second carrier according to the measurement result of the second SRS for multiple times.

In an embodiment, in the case of transmitting the first SRS and the second SRS multiple times, a time domain resource occupied by the first SRS and a time domain resource occupied by the second SRS may be the same or different. For example, the terminal device may transmit the first SRS and the second SRS separately in the time domain after transmitting the first SRS and the second SRS simultaneously. Alternatively, the terminal device may transmit the first SRS and the second SRS separately in the time domain, and then simultaneously transmit the first SRS and the second SRS. According to the multiple measurement results, the terminal equipment can acquire the signal leakage states among the multiple carriers, so that whether the antenna port of the terminal equipment is abnormal or not can be determined more accurately.

A schematic flowchart of a communication method provided in an embodiment of the present application is described in detail below with reference to fig. 7 and 8.

Fig. 7 is a schematic flowchart of a communication method according to an embodiment of the present application. The method can be applied to terminal equipment and network equipment. The method shown in the figure may include steps S710 to S760.

In step S710, the terminal device determines whether it is necessary to transmit a port diagnostic SRS. The terminal device may determine whether the port diagnosis SRS needs to be transmitted by detecting the MCS level of the uplink or the downlink, the number of retransmissions, or a signal measurement result. As an implementation manner, the terminal device may determine that the port diagnostic SRS needs to be transmitted in at least one of the following cases: descending MCS, descending CSI/SSB measurement result is poor, and the network equipment initiates ascending retransmission for many times.

Step S720, in the case that the terminal device determines that the port diagnostic SRS needs to be transmitted, the terminal device transmits a port diagnostic SRS transmission request to the network device.

Step S730, the network device sends DCI to the terminal device to schedule the port to diagnose SRS.

Step S740, the terminal device parses DCI for the scheduling port to diagnose SRS, and determines the resource of the port to diagnose SRS according to the DCI. For example, the terminal device may determine a set of SRS resources for port diagnostic SRS.

Step S750, the terminal device sends at least one antenna port diagnosis SRS. The terminal device may include at least one antenna port. The at least one port diagnostic SRS may correspond one-to-one to the at least one antenna port. The at least one port diagnostic SRS may include a first SRS. The at least one port diagnostic SRS may be transmitted in round-robin fashion on each antenna port.

Step S760, the network device measures the received port diagnostic SRS, and obtains a measurement result of the port diagnostic SRS. The network device may quantize the measurement results such that the measurement results map to multiple quantization levels.

The method shown in fig. 7 may further include step S770 and step S780.

Step S770, the network device feeds back the second information to the terminal device. The second information may include a quantization level of the SRS measurement and a corresponding antenna port identification. The second information may be carried through DCI.

In step S780, the terminal device may adjust an antenna port for data transmission or reception according to the received second information.

Fig. 8 is a schematic flowchart of a communication method according to an embodiment of the present application. The method can be applied to terminal equipment and network equipment. The method shown in the figure may include steps S810 to S850.

In step S810, the network device determines whether a port diagnostic SRS needs to be transmitted. The network device may determine whether the port diagnosis SRS needs to be transmitted by detecting an uplink or downlink MCS level, retransmission times, or a signal measurement result. As an implementation, the network device may determine that a port diagnostic SRS needs to be transmitted in at least one of: descending MCS, poor measurement result of SRS or PUSCH DMRS and multiple times of initiating uplink retransmission by the network equipment.

Step S820, the network device sends DCI to the terminal device to schedule the port to diagnose SRS.

In step S830, the terminal device parses DCI for the scheduling port to diagnose SRS, and determines the resource of the port to diagnose SRS according to the DCI. For example, the terminal device may determine a set of SRS resources for port diagnostic SRS.

Step 840, the terminal equipment sends port diagnosis SRS. The terminal device may include at least one antenna port. The at least one antenna port may correspond to the at least one port diagnostic SRS. The at least one port diagnostic SRS may include a first SRS. The at least one port diagnostic SRS may be transmitted in round-robin fashion on each antenna port.

Step S850, the network device measures the port diagnostic SRS, and obtains a measurement result of the port diagnostic SRS. The network device may quantize the measurement results such that the measurement results map to multiple quantization levels.

The method shown in fig. 8 may further include step S860 and step S870.

Step S860, the network device feeds back the second information to the terminal device. The second information may include a quantization level of the SRS measurement and a corresponding antenna port identification. The second information may be carried through DCI.

In step S870, the terminal device may adjust an antenna port used for data transmission or reception according to the received second information.

It should be noted that, in some embodiments, the antenna port may also be referred to as a port.

The method embodiment of the present application is described in detail above with reference to fig. 1 to 8, and the apparatus embodiment of the present application is described in detail below with reference to fig. 9 to 11. 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. 9 is a schematic structural diagram of a terminal device 900 according to an embodiment of the present application. The terminal device 900 may comprise a first sending unit 910.

The first sending unit 910 may be configured to send a first SRS to a network device, where the first SRS is used to diagnose whether an abnormality occurs in a first antenna port of the terminal device.

Alternatively, the first sending unit 910 may include: a second sending unit, configured to send the first SRS at a first antenna port of the terminal device, where the first SRS includes an identifier of the first antenna port.

Optionally, the terminal device 900 may further include: a first receiving unit, configured to receive a first DCI sent by the network device, where the first DCI is used to schedule the first SRS.

Optionally, the terminal device 900 may further include: a third sending unit, configured to send a first message to the network device, where the first message is used to request the network device to allocate the resource of the first SRS.

Optionally, the terminal device 900 may further include: a second receiving unit, configured to receive second information sent by the network device, where the second information includes a quantization level of a measurement result of the first SRS.

Optionally, the first SRS belongs to a first carrier, and the first SRS is used to diagnose whether a first antenna port of the terminal device is abnormal for the first carrier, where the terminal device 900 may further include: a fourth transmitting unit, configured to transmit a second SRS to the network device; the second SRS belongs to a second carrier, and is used for diagnosing whether a first antenna port of the terminal device is abnormal for the second carrier, where a time domain resource for transmitting the first SRS is different from a time domain resource for transmitting the second SRS.

Fig. 10 is a schematic structural diagram of a network device 1000 according to an embodiment of the present application. The network device 1000 may include a third receiving unit 1010.

The third receiving unit 1010 may be configured to receive a first SRS transmitted by a terminal device, where the first SRS is used to diagnose whether an abnormality occurs at a first antenna port of the terminal device.

Optionally, the first SRS includes an identifier of the first antenna port, and the first SRS is transmitted at the first antenna port of the terminal device.

Optionally, the network device 1000 may further include: a fifth sending unit, configured to send a first DCI to the terminal device, where the first DCI is used to schedule the first SRS.

Optionally, the network device 1000 may further include: a fourth receiving unit, configured to receive a first message sent by the terminal device, where the first message is used to request a network device to allocate a resource of the first SRS.

Optionally, the network device 1000 may further include: a sixth sending unit, configured to send second information to the terminal device, where the second information includes a quantization level of the measurement result of the first SRS.

Optionally, the first SRS belongs to a first carrier, and the first SRS is used to diagnose whether a first antenna port of the terminal device is abnormal for the first carrier, where the network device 1000 may further include: a fifth receiving unit, configured to receive a second SRS that is sent by the terminal device; the second SRS belongs to a second carrier, and is used for diagnosing whether a first antenna port of the terminal device is abnormal for the second carrier, where a time domain resource for transmitting the first SRS is different from a time domain resource for transmitting the second SRS.

Optionally, the network device 1000 may further include: a determining unit, configured to determine whether the first antenna port is abnormal according to a measurement result of the first SRS; a setting unit, configured to set a weighting coefficient of the first antenna port to 0 through codebook selection when the first antenna port is abnormal.

Fig. 11 is a schematic configuration diagram of a communication device according to an embodiment of the present application. The dashed lines in fig. 11 indicate that the unit or module is optional. The apparatus 1100 may be used to implement the methods described in the method embodiments above. The apparatus 1100 may be a chip, a terminal device, or a network device.

The apparatus 1100 may include one or more processors 1110. The processor 1110 may enable the apparatus 1100 to implement the methods described in the previous method embodiments. The processor 1110 may be a general purpose processor or a special purpose processor. For example, the processor may be a Central Processing Unit (CPU). Alternatively, the processor may be another general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The apparatus 1100 may also include one or more memories 1120. The memory 1120 has stored thereon a program that can be executed by the processor 1110 to cause the processor 1110 to perform the methods described in the previous method embodiments. The memory 1120 may be separate from the processor 1110 or may be integrated in the processor 1110.

The apparatus 1100 may also include a transceiver 1130. Processor 1110 may communicate with other devices or chips through transceiver 1130. For example, processor 1110 may transceive data with other devices or chips via transceiver 1130.

An embodiment of the present application further provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to the terminal or the network device provided in the embodiments of the present application, and the program causes the computer to execute the method performed by the terminal or the network device in the embodiments of the present application.

The embodiment of the application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal or the network device provided by the embodiment of the application, and the program enables the computer to execute the method executed by the terminal or the network device in the various embodiments of the application.

The embodiment of the application also provides a computer program. The computer program can be applied to the terminal or the network device provided in the embodiments of the present application, and the computer program enables the computer to execute the method performed by the terminal or the network device in the embodiments of the present application.

It should be understood that the terms "system" and "network" may be used interchangeably in this application. In addition, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different elements and not for describing a particular sequential order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present application, the reference to "indication" may be a direct indication, an indirect indication, or an indication of an association relationship. For example, a indicates B, which may mean that a directly indicates B, e.g., B may be obtained by a; it may also mean that a indicates B indirectly, for example, a indicates C, and B may be obtained by C; it can also mean that there is an association between a and B.

In the present embodiment, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

In the embodiment of the present application, the term "correspond" may indicate that there is a direct correspondence or an indirect correspondence between the two, may also indicate that there is an association between the two, and may also indicate and be indicated, configure and configured, and the like.

In the embodiment of the present application, "predefined" or "preconfigured" may be implemented by saving a corresponding code, table, or other manners that can be used to indicate related information in a device (for example, including a terminal device and a network device) in advance, and the present application is not limited to a specific implementation manner thereof. Such as predefined, may refer to what is defined in the protocol.

In the embodiment of the present application, the "protocol" may refer to a standard protocol in the field of communications, and for example, may include an LTE protocol, an NR protocol, and a related protocol applied in a future communication system, which is not limited in the present application.

In the embodiment of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

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.

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 on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, 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 may be any available medium that can be read by a computer or a data storage device including one or more available media integrated servers, data centers, and the like. 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 Versatile Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

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 method of communication, the method comprising:

the method comprises the steps that terminal equipment sends a first Sounding Reference Signal (SRS) to network equipment, and the first SRS is used for diagnosing whether a first antenna port of the terminal equipment is abnormal or not.

2. The method of claim 1, wherein the terminal device transmitting the first SRS comprises:

and sending the first SRS at a first antenna port of the terminal equipment, wherein the first SRS comprises an identifier of the first antenna port.

3. The method of claim 1, further comprising:

and the terminal equipment receives first Downlink Control Information (DCI) sent by the network equipment, wherein the first DCI is used for scheduling the first SRS.

4. The method of claim 1, further comprising:

and the terminal equipment sends a first message to the network equipment, wherein the first message is used for requesting the network equipment to allocate the resource of the first SRS.

5. The method of claim 1, further comprising:

and the terminal equipment receives second information sent by the network equipment, wherein the second information comprises the quantization level of the measurement result of the first SRS.

6. The method of claim 1, wherein the first SRS belongs to a first carrier, and wherein the first SRS is used for diagnosing whether a first antenna port of the terminal device is abnormal for the first carrier, and wherein the method further comprises:

the terminal equipment sends a second SRS to the network equipment;

the second SRS belongs to a second carrier, and is used for diagnosing whether a first antenna port of the terminal device is abnormal for the second carrier, where a time domain resource for transmitting the first SRS is different from a time domain resource for transmitting the second SRS.

7. A method of communication, the method comprising:

the method comprises the steps that network equipment receives a first Sounding Reference Signal (SRS) sent by terminal equipment, and the first SRS is used for diagnosing whether a first antenna port of the terminal equipment is abnormal or not.

8. The method of claim 7, wherein the first SRS comprises an identification of the first antenna port, and wherein the first SRS is transmitted at the first antenna port of the terminal device.

9. The method of claim 7, further comprising:

and the network equipment sends first Downlink Control Information (DCI) to the terminal equipment, wherein the first DCI is used for scheduling the first SRS.

10. The method of claim 7, further comprising:

and the network equipment receives a first message sent by the terminal equipment, wherein the first message is used for requesting the network equipment to allocate the resource of the first SRS.

11. The method of claim 7, further comprising:

and the network equipment sends second information to the terminal equipment, wherein the second information comprises the quantization level of the measurement result of the first SRS.

12. The method of claim 7, wherein the first SRS belongs to a first carrier, and wherein the first SRS is used for diagnosing whether a first antenna port of the terminal device is abnormal for the first carrier, and wherein the method further comprises:

the network equipment receives a second SRS sent by the terminal equipment;

13. The method of claim 7, further comprising:

according to the measurement result of the first SRS, the network equipment determines whether the first antenna port is abnormal or not;

and under the condition that the first antenna port is abnormal, the network equipment sets the weighting coefficient of the first antenna port to be 0 through codebook selection.

14. A terminal device, characterized in that the terminal device comprises:

a first sending unit, configured to send a first sounding reference signal SRS to a network device, where the first SRS is used to diagnose whether a first antenna port of the terminal device is abnormal.

15. The terminal device according to claim 14, wherein the first sending unit comprises:

a second sending unit, configured to send the first SRS at a first antenna port of the terminal device, where the first SRS includes an identifier of the first antenna port.

16. The terminal device according to claim 14, wherein the terminal device further comprises:

a first receiving unit, configured to receive first downlink control information DCI sent by the network device, where the first DCI is used to schedule the first SRS.

17. The terminal device according to claim 14, wherein the terminal device further comprises:

a third sending unit, configured to send a first message to the network device, where the first message is used to request the network device to allocate the resource of the first SRS.

18. The terminal device according to claim 14, wherein the terminal device further comprises:

a second receiving unit, configured to receive second information sent by the network device, where the second information includes a quantization level of a measurement result of the first SRS.

19. The terminal device of claim 14, wherein the first SRS belongs to a first carrier, and wherein the first SRS is used for diagnosing whether a first antenna port of the terminal device is abnormal for the first carrier, and wherein the terminal device further comprises:

a fourth transmitting unit, configured to transmit a second SRS to the network device;

20. A network device, characterized in that the network device comprises:

a third receiving unit, configured to receive a first sounding reference signal SRS sent by a terminal device, where the first SRS is used to diagnose whether a first antenna port of the terminal device is abnormal.

21. The network device of claim 20, wherein the first SRS comprises an identification of the first antenna port, and wherein the first SRS is transmitted at the first antenna port of the terminal device.

22. The network device of claim 20, wherein the network device further comprises:

a fifth sending unit, configured to send a first downlink control information DCI to the terminal device, where the first DCI is used to schedule the first SRS.

23. The network device of claim 20, wherein the network device further comprises:

a fourth receiving unit, configured to receive a first message sent by the terminal device, where the first message is used to request a network device to allocate a resource of the first SRS.

24. The network device of claim 20, wherein the network device further comprises:

a sixth sending unit, configured to send second information to the terminal device, where the second information includes a quantization level of the measurement result of the first SRS.

25. The network device of claim 20, wherein the first SRS belongs to a first carrier, and wherein the first SRS is used to diagnose whether a first antenna port of the terminal device is abnormal for the first carrier, and wherein the network device further comprises:

a fifth receiving unit, configured to receive a second SRS that is sent by the terminal device;

26. The network device of claim 20, wherein the network device further comprises:

a determining unit, configured to determine whether the first antenna port is abnormal according to a measurement result of the first SRS;

a setting unit, configured to set a weighting coefficient of the first antenna port to 0 through codebook selection when the first antenna port is abnormal.

27. A terminal device comprising a memory for storing a program and a processor for invoking the program in the memory for performing the method of any one of claims 1-6.

28. A network device comprising a memory for storing a program and a processor for invoking the program in the memory to perform the method of any one of claims 7-13.