CN114449562B - Communication method, terminal device and network device - Google Patents

Abstract

This application provides a communication method, terminal equipment and network equipment. The method includes: the terminal device sends a first SRS to the network device, where the first SRS is used to diagnose whether an abnormality occurs in the first antenna port of the terminal device. The terminal device and/or the network device may determine the abnormality of the first antenna port according to the first SRS. According to the abnormal situation of the first antenna port, the antenna port used by the terminal device for data transmission can be adjusted, so that the antenna ports without abnormality can communicate normally, thereby improving the uplink and downlink throughput when the antenna port is abnormal.

Description

Communication method, terminal equipment and network equipment

Technical field

This application relates to the field of communication technology, and specifically relates to a communication method, terminal equipment and network equipment.

Background technique

A terminal device may include one or more antenna ports. When an abnormality or failure occurs in one or some of the antenna ports, the bit error rate will increase. Since it is impossible to determine which antenna port or ports are abnormal, related technologies reduce the bit error rate by reducing the scheduled MCS level and retransmitting. It is understandable that this approach will cause the throughput of all antenna ports to be reduced, that is, the antenna ports that have not failed will also be affected by the failed antenna port. Therefore, when an abnormality occurs in one or some antenna ports of the terminal device, the uplink and downlink throughput will be greatly reduced.

Contents of the invention

In view of this, this application provides a communication method, terminal equipment, and network equipment to solve the problem of reduced uplink and downlink throughput caused by abnormal antenna ports.

In a first aspect, this application provides a communication method, including: a terminal device sending a first SRS to a network device, where the first SRS is used for diagnosis of a first antenna port of the terminal device.

In a second aspect, this application provides a communication method, including: a network device receiving a first SRS sent by a terminal device, where the first SRS is used for diagnosis of the first antenna port of the terminal device.

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 the first antenna port of the terminal device appears. 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 an abnormality occurs in the first antenna port of the terminal device. .

In a fifth aspect, the present application provides a terminal device, including a processor, a memory, and a communication interface. The memory is used to store one or more computer programs. The processor is used to call the computer program in the memory so that the The terminal device executes the method described in the first aspect.

In a sixth aspect, the present application provides a network device, including a processor, a memory, and a communication interface. The memory is used to store one or more computer programs. The processor is used to call the computer program in the memory so that the The network device performs the method of the second aspect.

In a seventh aspect, embodiments of the present application provide a communication system, which includes the above-mentioned terminal device and/or network device. In another possible design, the system may also include other devices that interact with the terminal or network device in the solution provided by the embodiments of this application.

In an eighth aspect, embodiments of the present application provide a computer-readable storage medium that stores a computer program. The computer program causes a terminal device to execute some or all of the steps in the method of the first aspect. .

In a ninth aspect, embodiments of the present application provide a computer-readable storage medium that stores a computer program. 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, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause the terminal to execute the above-mentioned first step. Some or all of the steps in a method on the one hand. In some implementations, the computer program product can be a software installation package.

In an eleventh aspect, embodiments of the present application provide a computer program product, wherein 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 execute Some or all of the steps in the method of the second aspect above. In some implementations, the computer program product can be a software installation package.

In a twelfth aspect, embodiments of the present application provide a chip, which includes a memory and a processor. The processor can call and run a computer program from the memory to implement the method described in the first aspect or the second aspect. some or all of the steps.

In a thirteenth aspect, a computer program product is provided, including a program that causes a computer to execute the method described in the first aspect.

A fourteenth aspect provides a computer program product, including a program that causes a computer to execute the method described in the second aspect.

In a fifteenth aspect, a computer program is provided, the computer program causing a computer to execute the method described in the first aspect.

In a sixteenth aspect, a computer program is provided, the computer program causing a computer to execute the method described in the second aspect.

The terminal device and/or the network device may determine the abnormality of the first antenna port according to the first sounding reference signal (SRS). According to the abnormal situation of the first antenna port, the antenna port used by the terminal device for data transmission can be adjusted, so that the antenna ports without abnormality can communicate normally, thereby improving the uplink and downlink throughput when the antenna port is abnormal.

Description of drawings

Figure 1 is a schematic diagram of a communication system to which this application can be applied.

Figure 2 is a schematic flow chart of a communication method provided by an embodiment of the present application.

Figure 3 is an example diagram of a sending port diagnosis SRS provided for the embodiment of the present application.

Figure 4 is an example diagram of a first SRS resource set provided by an embodiment of the present application.

Figure 5 is an example diagram of an SRS time domain resource provided by an embodiment of the present application.

Figure 6 is an example diagram of another SRS time domain resource provided by an embodiment of the present application.

Figure 7 is a schematic flow chart of another communication method provided by an embodiment of the present application.

Figure 8 is a schematic flow chart of yet another communication method provided by an embodiment of the present application.

Figure 9 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.

Figure 10 is a schematic structural diagram of a network device provided by an embodiment of the present application.

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

Detailed ways

The technical solutions in this application will be described below with reference to the accompanying drawings.

Figure 1 is a wireless communication system 100 applied in the embodiment of the present application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120 . The network device 110 may provide communication coverage for a specific geographical area and may communicate with terminal devices 120 located within the coverage area.

Figure 1 exemplarily shows one network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.

Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5th generation, 5G) systems or new radio (new radio, NR), long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solution provided by this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication systems, and so on.

The terminal equipment in the embodiment of the present application may also be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT) ), remote station, remote terminal, mobile device, user terminal, terminal, wireless communications equipment, user agent or user device. The terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to users, and may be used to connect people, things, and machines, such as handheld devices and vehicle-mounted devices with wireless connection functions. 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 handheld computer, a mobile internet device (mobile internet device, MID), a wearable device, a virtual reality (virtual reality, VR) equipment, augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, smart Wireless terminals in the power grid (smart grid), wireless terminals in transportation safety (transportation safety), wireless terminals in smart cities (smart city), wireless terminals in smart homes (smart home), etc. Optionally, the UE may be used to act as a base station. For example, a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, cell phones and cars use sidelink signals to communicate with each other. Cell phones and smart home devices communicate between each other without having to relay communication signals through base stations.

The network device in the embodiment of the present application may be a device used to communicate with a terminal device. The network device may also be called an access network device or a wireless access network device. For example, the network device may be a base station. The network device in the embodiment of this application may refer to a radio access network (radio access network, RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmitting point (TP), main station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network controller, access node , wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), radio remote unit (Remote Radio Unit, RRU), active antenna unit (activeantenna unit, AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc. 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 used in the aforementioned equipment or devices. The base station can also be a mobile switching center and a device that undertakes base station functions in device-to-device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communications, and in 6G networks. Network side equipment, equipment that assumes base station functions in future communication systems, etc. Base stations can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment.

Base stations can 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 based on the mobile base station's location. In other examples, a helicopter or drone may be configured to serve as a device that communicates with another base station.

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

Network equipment and terminal equipment can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the sky. In the embodiments of this application, the scenarios in which network devices and terminal devices are located are not limited.

It should be understood that all or part of the functions of the communication device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

An end device may include one or more antenna ports. The antenna port can be used for data transmission and/or reception. When an abnormality or failure occurs in one or some of the antenna ports, the bit error rate will increase. Since it is impossible to determine which antenna port or ports are abnormal, related technologies reduce the bit error rate by reducing the scheduled MCS level and retransmitting. It is understandable that this approach will cause the throughput of all antenna ports to be reduced, that is, the antenna ports that have not failed will also be affected by the failed antenna port. Therefore, when an abnormality occurs in one or some antenna ports of the terminal device, the uplink and downlink throughput will be greatly reduced.

In response to the above situation, this application proposes a communication method that can be used to diagnose whether an abnormality occurs in the antenna port of the terminal device and determine which antenna port of the terminal device has the abnormality.

Figure 2 is a schematic flow chart of a communication method provided by an embodiment of the present application. The method shown in Figure 2 can be implemented by terminal equipment and network equipment. The method shown in Figure 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 an abnormality occurs in the first antenna port of the terminal device. For example, the network device may measure the received first SRS to obtain the measurement result of the first SRS. The network device and/or the terminal device may determine whether an abnormality occurs at the first antenna port based on the measurement result of the first SRS. In some embodiments, an SRS used for diagnosis of the antenna port that is similar to the first SRS may be called a port diagnosis SRS.

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

The terminal device and/or the network device may determine the abnormality of the first antenna port according to the first SRS. According to the abnormal situation of the first antenna port, the antenna port used by the terminal device for data transmission can be adjusted, so that the antenna ports without abnormality can communicate normally, thereby improving the uplink and downlink throughput when the antenna port is abnormal.

An end 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 manner, the first SRS may be sent through the first antenna port of the terminal device. It can be understood that, in the case where the terminal device includes multiple antenna ports, the multiple antenna ports may respectively correspond to one port diagnostic SRS. SRS for multiple port diagnostics can be transmitted on the corresponding antenna port.

Figure 3 is an example diagram of a sending port diagnosis SRS provided by an embodiment of the present application. The terminal device may include 4 antenna ports. The four antenna ports can be respectively antenna port 0, antenna port 1, antenna port 2 and antenna port 3. The four antenna ports can correspond to the four port diagnostic SRS one by one. The terminal device can diagnose one or more of the four port SRSs by sending them to diagnose whether the corresponding antenna port is abnormal.

The first SRS may include an identification of the first antenna port, thereby corresponding the first SRS to the first antenna port. For example, the resource parameter of the first SRS may include an identification of the antenna port. The identification of the antenna port may be, for example, a port index.

Optionally, the terminal device may send the first SRS multiple times. The terminal device and/or the network device may combine the measurement results of multiple first SRSs to diagnose whether the first antenna port is abnormal. It can be understood that, based on the measurement results of multiple first SRSs, the error of a single first SRS measurement can be avoided, thereby more accurately diagnosing whether an abnormality occurs at the first antenna port.

The antenna port diagnosis event of the terminal device may be an emergency event, and therefore, the first SRS may be an aperiodic SRS. Referring to the provisions of related technologies (such as 38.214 or 38.211 protocols), 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 the 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 for port diagnosis. The first SRS resource set may include resources of the first SRS. It can be understood that the first DCI may indicate multiple SRS resource sets, and each of the multiple SRS resource sets may be used for port diagnosis. The first SRS resource set may be any one of multiple SRS resource sets. The terminal device can parse the first DCI to determine the first SRS resource set, and transmit the first SRS according to the scheduling configuration of the first DCI.

The number of SRS resources in the first SRS resource set 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. Figure 4 is an example diagram of a first SRS resource set provided by an embodiment of the present application. The first SRS resource set shown in FIG. 4 may include 4 SRS resources for diagnosis of antenna ports of a terminal device including 4 ports. The four antenna ports of the terminal device can be expressed as: port 0 (port0), port 1 (port1), port 2 (port2) and port 3 (port3). The four SRS resources in the first SRS resource set may be port 0 SRS resources, port 1 SRS resources, port 2 SRS resources and port 3 SRS resources respectively. The first SRS can be used to diagnose any antenna port among Port 0, Port 1, Port 2 and Port 3. That is to say, the resources occupied by the first SRS may be any of port 0 SRS resources, port 1 SRS resources, port 2 SRS resources, and port 3 SRS resources.

As an implementation manner, the network device can directly send a command to instruct the terminal device to send the first SRS. That is, the terminal device can passively trigger the first antenna port diagnosis process based on the first SRS. For example, the network device may send the first DCI to the terminal device by itself to instruct the terminal device to send the first SRS.

This application does not limit the first trigger condition for the network device to instruct the terminal device to send the first SRS. The first trigger condition can be determined based on the MCS level, retransmission situation, and measurement situation. For example, the first triggering condition may include one or more of the following conditions: the MCS level of the terminal device's downlink transmission decreases, the terminal device applies to the network device for downlink retransmission, the network device initiates uplink retransmission multiple times, the network device schedules uplink The MCS level drops significantly, and the SRS or PUSCH DMRS signal quality measured by the network equipment drops (for example, it falls below the threshold multiple times).

As another implementation manner, the terminal device may request the sending of the first SRS. That is, the terminal device can actively trigger the first antenna port diagnosis based on the first SRS. For example, the terminal device may send the first message to the network device. The first message may be used to request the network device to allocate resources of the first SRS. The first message may be carried by PUSCH and/or PUCCH. After receiving the first message, the network device may send the first DCI to the terminal device to schedule the first SRS.

This application does not limit the second triggering condition for the terminal device to request the initiation of the first SRS. The second trigger condition can be determined based on the MCS level, retransmission situation, and measurement situation. For example, the second triggering condition may include at least one of the following conditions: the MCS level of the downlink transmission of the terminal device decreases, the measurement result of the downlink CSI/SSB is poor (for example, the measurement result is lower than the threshold multiple times), the network device has too many Uplink retransmission is initiated for the second time, or the MCS level of uplink scheduling decreases.

The network device can measure the first SRS and obtain the measurement result of the first SRS. The measurement results may include, for example, the 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 based on the measurement result of the first SRS. For example, if the measurement result of the first SRS is lower than the threshold, it may be determined that the first antenna port is abnormal.

It can be understood that the terminal device can send the first SRS multiple times. The network device may measure the first SRS sent 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 based on the multiple measurement results of the first SRS. For example, if the measurement result of the first SRS n (n is an integer greater than 0) is lower than or equal to the threshold value n times, it may be determined that the first antenna port is abnormal. By determining the abnormality of the first antenna port through multiple measurement results of the first SRS, the measurement error of the first SRS can be avoided, thereby improving the accuracy of diagnosis of the first antenna port.

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, so that the terminal device determines whether an abnormality occurs at the first antenna port.

The network device may map the measurement result of the first SRS to multiple quantization levels, and transmit the quantization level to the terminal device as the measurement result of the first SRS. Among them, each quantification level can correspond to a measurement result range. It can be understood that the number of bits occupied by the quantization level can be the measurement result of the first SRS of the cell. Therefore, when the network device transmits the quantization level to the terminal device, the signaling overhead of transmitting the measurement result of the first SRS can be saved.

This application does not limit the number of quantification levels. For example, the number of quantization levels may be 16 levels, that is, the measurement result of the first SRS may be mapped to 16 levels. It can be understood that the greater the number of quantization levels, the more precise the quantization levels are in expressing the measurement results of the first SRS. 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 results of the first SRS.

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

The terminal device or network device may adjust the antenna port for data transmission (sending and/or receiving) according to the detection result of the first SRS. For example, when an abnormality occurs at the first antenna port, the network device and/or the terminal device may not use the first antenna port for data transmission, thereby allowing the antenna port without abnormality to communicate normally (for example, using a higher MCS). transmission). As an implementation method, the network device can adjust the antenna port used for transmission by configuring the codebook. For example, the network device can set the weighting coefficient of an abnormal antenna port to 0 by selecting a codebook. As another implementation, the terminal device can adjust the use of the antenna port.

This application does not limit the number of symbols occupied by the first SRS. For example, the first SRS may occupy 1 symbol or 2 symbols.

Optionally, multiple port diagnostic SRSs can be sent separately in the time domain. A guard interval may be included between two adjacent SRS resources. The guard interval enables terminal devices to implement port switching. The guard interval may be, for example, 1 symbol.

Figure 5 is an example diagram of an SRS time domain resource provided by an embodiment of the present application. Figure 5 shows a port diagnosis SRS time domain resource distribution for a terminal device including 4 antenna ports. The first time slot (slot) shown in Figure 5 can be any time slot in the communication process. For example, the first time slot may be the nth time slot, and n is an integer greater than 0. The antenna ports of the terminal device may include port 0, port 1, port 2 and port 3. The port diagnosis SRS resources of the terminal device may include port 0 SRS resources, port 1 SRS resources, port 2 SRS resources and port 3 SRS resources. Port 0 SRS resources, port 1 SRS resources, port 2 SRS resources and port 3 SRS resources can correspond to port 0, port 1, port 2 and port 3 respectively. As shown in Figure 5, each port diagnostic SRS resource can occupy 1 symbol. The guard interval can occupy 1 symbol. The distribution of SRS resources may comply with the regulations of relevant technologies. If the regulations of relevant technologies are different, the distribution of SRS resources may be different. For example, according to the NR rel16 protocol of the 5G system, SRS can only occupy up to the last 12 symbols of a time slot. According to the NR rel16 protocol of the 5G system, in the example shown in Figure 5, the SRS resources used for port diagnosis can occupy time domain resources from symbols 7 to 13.

The embodiments provided in this application can be applied to carrier aggregation. Carrier aggregation can realize the aggregation of multiple carriers. The terminal device can respectively send SRS for port diagnosis corresponding to the antenna port for multiple carriers to diagnose whether the antenna port is abnormal in the frequency bands corresponding to the multiple carriers. The terminal equipment or network equipment can adjust the scheme of using the antenna port in different frequency bands based on the measurement results of the SRS of different carriers by the network equipment.

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

As an implementation manner, for the same antenna port, the port diagnostic SRS of multiple carriers can be sent separately in the time domain. For example, the terminal device may send the port diagnosis SRS in turn on one carrier by one carrier in the time domain. Continuing to take the first carrier and the second carrier described above as an example, the time domain resources occupied by the first SRS and the time domain resources occupied by the second SRS may be different.

Figure 6 is an example diagram of a two-carrier SRS time domain resource provided by an embodiment of the present application. The terminal device may include 4 antenna ports, namely port 0, port 1, port 2 and port 3. For the first carrier, the port diagnostic SRS can occupy 1 symbol. For example, the first SRS may occupy any one of port 0 SRS resources, port 1 SRS resources, port 2 SRS resources, and port 3 SRS resources of the first carrier. For the second carrier, the port diagnostic SRS can occupy 2 symbols. The second SRS may occupy any one of the port 0 SRS resources, port 1 SRS resources, port 2 SRS resources and port 3 SRS resources of the second carrier. The port diagnostic SRS for the first carrier may be sent on the second time slot. The port diagnostic SRS for the second carrier may be sent on the third time slot. The second time slot may be the n-th time slot, the third time slot may be the n+1-th time slot, and n may be an integer greater than 0.

As another embodiment, for the same antenna port, the port diagnosis SRS of multiple carriers can be sent on the same time domain resource, that is, sent simultaneously. Taking the first carrier and the second carrier described above as an example, the first SRS and the second SRS may occupy the same time domain resources.

It can be understood that the time domain resources of the port diagnosis SRS of multiple carriers can be determined according to the terminal capabilities. For example, if the capability of the terminal device supports sending SRS on multiple carriers simultaneously, the terminal device can send port diagnostic SRS of different carriers on multiple carriers at the same time. Alternatively, if the capability of the terminal device does not support sending SRS on multiple carriers simultaneously, the terminal device can send port diagnostic SRS of different carriers on different time domain resources.

It can be understood that the terminal device may send 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 based on multiple measurement results of the first SRS. Alternatively, the terminal device and/or the network device may determine whether the first antenna port is abnormal for the second carrier based on multiple measurement results of the second SRS.

In one embodiment, when the first SRS and the second SRS are transmitted multiple times, the time domain resources occupied by the first SRS and the time domain resources occupied by the second SRS may be the same or different. For example, the terminal device may send the first SRS and the second SRS separately in the time domain after sending the first SRS and the second SRS simultaneously. Alternatively, the terminal device may send the first SRS and the second SRS simultaneously after sending the first SRS and the second SRS separately in the time domain. Based on multiple measurement results, the terminal device can obtain the signal leakage status between multiple carriers, thereby more accurately determining whether an abnormality occurs in the antenna port of the terminal device.

The schematic flow chart of the communication method provided by the embodiment of the present application will be described in detail below with reference to FIG. 7 and FIG. 8 .

Figure 7 is a schematic flow chart of a communication method provided by an embodiment of the present application. This method can be applied to both terminal equipment and network equipment. The method shown in the figure may include steps S710 to S760.

Step S710: The terminal device determines whether it needs to send port diagnosis SRS. The terminal device can determine whether it needs to send port diagnostic SRS by detecting the uplink or downlink MCS level, the number of retransmissions, or signal measurement results. As an implementation manner, the terminal device may determine that the port diagnosis SRS needs to be sent under at least one of the following circumstances: downlink MCS drops, uplink MCS drops, downlink CSI/SSB measurement results are poor, and the network device initiates uplink retransmission multiple times.

Step S720: When the terminal device determines that the port diagnosis SRS needs to be sent, the terminal device sends a port diagnosis SRS sending request to the network device.

Step S730: The network device sends DCI to the terminal device to schedule port diagnosis SRS.

Step S740: The terminal device parses the DCI of the scheduled port diagnosis SRS, and determines the resources of the port diagnosis SRS based on the DCI. For example, the terminal device may determine an SRS resource set used for port diagnosis SRS.

Step S750: The terminal device sends at least one antenna port diagnosis SRS. The terminal device may include at least one antenna port. At least one port diagnostic SRS may correspond to at least one antenna port one-to-one. At least one port diagnostic SRS may include a first SRS. At least one port diagnostic SRS may be sent on each antenna port in turn.

Step S760: The network device measures the received port diagnosis SRS and obtains the measurement result of the port diagnosis SRS. The network device can quantify the measurement results so that the measurement results are mapped to multiple quantization levels.

The method shown in Figure 7 may also 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 the quantification level of the SRS measurement result and the corresponding antenna port identification. The second information can be carried through DCI.

Step S780: The terminal device may adjust the antenna port used for data transmission or reception according to the received second information.

Figure 8 is a schematic flow chart of a communication method provided by an embodiment of the present application. This method can be applied to both terminal equipment and network equipment. The method shown in the figure may include steps S810 to S850.

Step S810: The network device determines whether it needs to send port diagnosis SRS. Network equipment can determine whether it is necessary to send port diagnostic SRS by detecting the uplink or downlink MCS level, the number of retransmissions, or signal measurement results. As an implementation manner, in at least one of the following situations, the network device may determine that the port diagnosis SRS needs to be sent: downlink MCS drops, uplink MCS drops, poor SRS or PUSCH DMRS measurement results, and the network device initiates uplink retransmission multiple times. .

Step S820: The network device sends DCI to the terminal device to schedule port diagnosis SRS.

Step S830: The terminal device parses the DCI of the scheduled port diagnosis SRS, and determines the resources of the port diagnosis SRS based on the DCI. For example, the terminal device may determine an SRS resource set used for port diagnosis SRS.

Step S840: The terminal device sends a port diagnosis SRS. The terminal device may include at least one antenna port. At least one antenna port may correspond to at least one port diagnostic SRS. At least one port diagnostic SRS may include a first SRS. At least one port diagnostic SRS may be sent on each antenna port in turn.

Step S850: The network device measures the port diagnosis SRS and obtains the measurement result of the port diagnosis SRS. The network device can quantify the measurement results so that the measurement results are mapped to multiple quantization levels.

The method shown in Figure 8 may also 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 the quantification level of the SRS measurement result and the corresponding antenna port identification. The second information can be carried through DCI.

Step S870: The terminal device may adjust the antenna port used for data transmission or reception according to the received second information.

It should be noted that in some embodiments, an antenna port may also be called a port.

The method embodiments of the present application are described in detail above with reference to FIGS. 1 to 8 , and the device embodiments of the present application are described in detail below with reference to FIGS. 9 to 11 . It should be understood that the description of the method embodiments corresponds to the description of the device embodiments. Therefore, the parts not described in detail can be referred to the previous method embodiments.

Figure 9 is a schematic structural diagram of a terminal device 900 provided by an embodiment of the present application. The terminal device 900 may include a first sending unit 910.

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

Optionally, the first sending unit 910 may include: a second sending unit, configured to send the first SRS at the first antenna port of the terminal device, where the first SRS includes an identification 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 resources 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 quantified level of the measurement result of the first SRS.

Optionally, the first SRS belongs to the first carrier, and the first SRS is used to diagnose whether the first antenna port of the terminal device is abnormal for the first carrier. The terminal device 900 may also include: The fourth sending unit is configured to send a second SRS to the network device; wherein the second SRS belongs to the second carrier, and the second SRS is used to diagnose the first antenna port of the terminal device for the third Whether there is an abnormality in the second carrier, the time domain resource for sending the first SRS is different from the time domain resource for sending the second SRS.

Figure 10 is a schematic structural diagram of a network device 1000 provided by 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 the first SRS sent by the terminal device, where the first SRS is used to diagnose whether an abnormality occurs in the first antenna port of the terminal device.

Optionally, the first SRS includes an identification of the first antenna port, and the first SRS is sent on 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 the network device to allocate resources 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 quantified level of the measurement result of the first SRS.

Optionally, the first SRS belongs to the first carrier, and the first SRS is used to diagnose whether the first antenna port of the terminal device is abnormal for the first carrier. The network device 1000 may also include: A fifth receiving unit, configured to receive a second SRS sent by the terminal device; wherein the second SRS belongs to the second carrier, and the second SRS is used to diagnose whether the first antenna port of the terminal device is Whether the second carrier is abnormal and the time domain resource for sending the first SRS is different from the time domain resource for sending 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 the measurement result of the first SRS; and a setting unit configured to determine whether the first antenna port is abnormal. In an abnormal situation, the weighting coefficient of the first antenna port is set to 0 through codebook selection.

Figure 11 is a schematic structural diagram of a communication device according to an embodiment of the present application. The dashed line in Figure 11 indicates that the unit or module is optional. The device 1100 can be used to implement the method described in the above method embodiment. Device 1100 may be a chip, terminal device or network device.

Apparatus 1100 may include one or more processors 1110. The processor 1110 can support the device 1100 to implement the method described in the foregoing 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 can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (fieldprogrammable gate arrays, FPGAs), or Other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

Apparatus 1100 may also include one or more memories 1120. The memory 1120 stores a program, which can be executed by the processor 1110, so that the processor 1110 executes the method described in the foregoing method embodiment. The memory 1120 may be independent of the processor 1110 or integrated in the processor 1110 .

Device 1100 may also include a transceiver 1130. Processor 1110 may communicate with other devices or chips through transceiver 1130. For example, the processor 1110 can transmit and receive data with other devices or chips through the transceiver 1130 .

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

An embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied in the terminal or network device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the terminal or network device in various embodiments of the present application.

An embodiment of the present application also provides a computer program. The computer program can be applied to the terminal or network device provided by the embodiments of the present application, and the computer program causes the computer to execute the methods performed by the terminal or network device in various 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 terms used in this application are only used to explain specific embodiments of the application and are not intended to limit the application. The terms “first”, “second”, “third” and “fourth” in the description, claims and drawings of this application are used to distinguish different objects, rather than to describe a specific sequence. . Furthermore, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

In the embodiments of this application, the "instruction" mentioned may be a direct instruction, an indirect instruction, or an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.

In the embodiment of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B only based on A. B can also be determined based on A and/or other information.

In the embodiments of this application, the term "correspondence" can mean that there is a direct correspondence or indirect correspondence between the two, or it can also mean that there is an association between the two, or it can also mean indicating and being instructed, configuring and being configured, etc. relation.

In the embodiment of this application, "predefinition" or "preconfiguration" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The application does not limit its specific implementation method. For example, predefined can refer to what is defined in the protocol.

In the embodiment of this application, the "protocol" may refer to a standard protocol in the communication field, which may include, for example, LTE protocol, NR protocol, and related protocols applied in future communication systems. This application does not limit this.

The term "and/or" in the embodiment of this application is only an association relationship describing associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, and A and B exist simultaneously. , there are three situations of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

In the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be determined by the implementation process of the embodiments of the present application. constitute any limitation.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it 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 the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center integrated with one or more available media. The available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, digital video disc (DVD)) or semiconductor media (eg, solid state disk (SSD) )wait.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (24)

1. A communication method, characterized in that the method includes: The terminal device sends a first detection reference signal SRS to the network device, where the first SRS is used to diagnose whether an abnormality occurs in the first antenna port of the terminal device; Wherein, the first SRS belongs to the first carrier, and the first SRS is used to diagnose whether the first antenna port of the terminal device is abnormal for the first carrier. The method further includes: The terminal device sends a second SRS to the network device; Wherein, the second SRS belongs to the second carrier, the second SRS is used to diagnose whether the first antenna port of the terminal device is abnormal for the second carrier, and sends the time domain resource and The time domain resources for sending the second SRS are different. 2. The method according to claim 1, wherein the terminal device sending the first SRS includes: The first SRS is sent at the first antenna port of the terminal device, where the first SRS includes an identifier of the first antenna port. 3. The method according to claim 1, characterized in that, the method further comprises: The terminal device receives the first downlink control information DCI sent by the network device, and the first DCI is used to schedule the first SRS. 4. The method according to claim 1, characterized in that, the method further comprises: The terminal device sends a first message to the network device, where the first message is used to request the network device to allocate resources of the first SRS. 5. The method according to claim 1, characterized in that, the method further comprises: The terminal device receives second information sent by the network device, where the second information includes a quantified level of the measurement result of the first SRS. 6. A communication method, characterized in that the method includes: The network device receives a first detection reference signal SRS sent by the terminal device, where the first SRS is used to diagnose whether an abnormality occurs in the first antenna port of the terminal device; Wherein, the first SRS belongs to the first carrier, and the first SRS is used to diagnose whether the first antenna port of the terminal device is abnormal for the first carrier. The method further includes: The network device receives the second SRS sent by the terminal device; Wherein, the second SRS belongs to the second carrier, the second SRS is used to diagnose whether the first antenna port of the terminal device is abnormal for the second carrier, and sends the time domain resource and The time domain resources for sending the second SRS are different. 7. The method according to claim 6, wherein the first SRS includes an identifier of the first antenna port, and the first SRS is sent at the first antenna port of the terminal device. 8. The method according to claim 6, characterized in that, the method further comprises: The network device sends first downlink control information DCI to the terminal device, where the first DCI is used to schedule the first SRS. 9. The method according to claim 6, characterized in that, the method further comprises: The network device receives a first message sent by the terminal device, where the first message is used to request the network device to allocate resources of the first SRS. 10. The method according to claim 6, characterized in that, the method further comprises: The network device sends second information to the terminal device, where the second information includes a quantified level of the measurement result of the first SRS. 11. The method according to claim 6, characterized in that, the method further comprises: According to the measurement result of the first SRS, the network device determines whether the first antenna port is abnormal; When the first antenna port is abnormal, the network device sets the weighting coefficient of the first antenna port to 0 through codebook selection. 12. A terminal device, characterized in that the terminal device includes: A first sending unit configured to send a first sounding reference signal SRS to the network device, where the first SRS is used to diagnose whether an abnormality occurs in the first antenna port of the terminal device; Wherein, the first SRS belongs to the first carrier, and the first SRS is used to diagnose whether the first antenna port of the terminal device is abnormal for the first carrier. The terminal device also includes: A fourth sending unit, configured to send the second SRS to the network device; Wherein, the second SRS belongs to the second carrier, the second SRS is used to diagnose whether the first antenna port of the terminal device is abnormal for the second carrier, and sends the time domain resource and The time domain resources for sending the second SRS are different. 13. The terminal device according to claim 12, characterized in that the first sending unit includes: The second sending unit is configured to send the first SRS at the first antenna port of the terminal device, where the first SRS includes an identifier of the first antenna port. 14. The terminal device according to claim 12, characterized in that the terminal device further includes: The first receiving unit is configured to receive the first downlink control information DCI sent by the network device, where the first DCI is used to schedule the first SRS. 15. The terminal device according to claim 12, characterized in that the terminal device further includes: The third sending unit is configured to send a first message to the network device, where the first message is used to request the network device to allocate resources of the first SRS. 16. The terminal device according to claim 12, characterized in that the terminal device further includes: A second receiving unit configured to receive second information sent by the network device, where the second information includes a quantified level of the measurement result of the first SRS. 17. A network device, characterized in that the network device includes: The third receiving unit is configured to receive the first detection reference signal SRS sent by the terminal device, where the first SRS is used to diagnose whether there is an abnormality in the first antenna port of the terminal device; Wherein, the first SRS belongs to the first carrier, and the first SRS is used to diagnose whether the first antenna port of the terminal device is abnormal for the first carrier. The network device also includes: A fifth receiving unit, configured to receive the second SRS sent by the terminal device; Wherein, the second SRS belongs to the second carrier, the second SRS is used to diagnose whether the first antenna port of the terminal device is abnormal for the second carrier, and sends the time domain resource and The time domain resources for sending the second SRS are different. 18. The network device according to claim 17, wherein the first SRS includes an identifier of the first antenna port, and the first SRS is sent on the first antenna port of the terminal device. 19. The network device according to claim 17, characterized in that the network device further includes: The fifth sending unit is configured to send first downlink control information DCI to the terminal device, where the first DCI is used to schedule the first SRS. 20. The network device according to claim 17, characterized in that the network device further includes: The fourth receiving unit is configured to receive the first message sent by the terminal device, where the first message is used to request the network device to allocate resources of the first SRS. 21. The network device according to claim 17, characterized in that the network device further includes: A sixth sending unit, configured to send second information to the terminal device, where the second information includes the quantization level of the measurement result of the first SRS. 22. The network device according to claim 17, characterized in that the network device further includes: A determining unit configured to determine whether the first antenna port is abnormal based on the measurement result of the first SRS; A setting unit configured to set the weighting coefficient of the first antenna port to 0 through codebook selection when the first antenna port is abnormal. 23. A terminal device, characterized in that it includes a memory and a processor, the memory is used to store programs, and the processor is used to call the program in the memory to execute any one of claims 1-5 the method described. 24. A network device, characterized in that it includes a memory and a processor, the memory is used to store programs, and the processor is used to call the program in the memory to execute any one of claims 6-11 the method described.