Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus. In the method, a network device may configure a plurality of reference signal resources for a terminal device, wherein the plurality of reference signal resources are associated with all antenna ports of the terminal device, and each reference signal resource among the plurality of reference signal resources is associated with X antenna ports of the terminal device, X being greater than 2; and the terminal device may send reference signals on the basis of the plurality of reference signal resources configured by the network device. According to the communication method in embodiments of the present application, each reference signal resource configured by the network device for the terminal device comprises a greater number of reference signal ports, so that the time for the terminal device to alternately send reference signals on different antenna ports becomes shorter, thereby improving channel measurement efficiency.

Description

Communication method and communication apparatus

[0001] This application claims priority to the Chinese patent application No. 202410892516.5, filed on July 3, 2024, and entitled "Communication method and communication apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of wireless communication, and more particularly, to a communication method and a communication apparatus. BACKGROUND

[0003] Current market demand shows that the peak data transmission rate of the downlink needs to be improved to 1.6Gbps, in order to meet this demand, it is necessary to use a 6Rx receiver to receive data in the process of downlink data transmission, the 6Rx receiver is a receiving end device containing 6 receiving antennas, thereby effectively improving the spectrum efficiency. The transceiving capability of the currently discussed 6Rx receiver can include 1 transmitting antenna and 6 receiving antennas (denoted as 1T6R), 2 transmitting antennas and 6 receiving antennas (denoted as 2T6R). The terminal device with the transceiving capability of 1T6R, the sounding reference signal (SRS) resource set configured by the network device for the terminal device includes 6 SRS resources, which needs to occupy at least 11 orthogonal frequency division multiplexing (OFDM) symbols to send the SRS on different antenna ports in turn; the terminal device with the transceiving capability of 2T6R, the SRS resource set configured by the network device for the terminal device includes 3 SRS resources, which needs to occupy at least 5 OFDM symbols to send the SRS on different antenna ports in turn. The number of OFDM symbols currently occupied by the SRS transmission is relatively large, which leads to low channel measurement efficiency. SUMMARY

[0004] The present application provides a communication method and a communication apparatus, which can make the time for the terminal device to send the SRS on different antenna ports in turn and report the channel information shorter, and can improve the efficiency of channel measurement.

[0005] In a first aspect, a communication method is provided. The method can be applied to the terminal side, that is, the method can be executed by a terminal device, or can be executed by a component (such as a chip or a chip system or a circuit or a communication module) of the terminal device, and the present application does not limit this. Hereinafter, the terminal device will be mainly taken as an example for description.

[0006] The method can comprise: receiving, by the terminal device, first configuration information, the first configuration information being used to indicate a plurality of reference signal resources, the plurality of reference signal resources being associated with all antenna ports of the terminal device, each of the plurality of reference signal resources being associated with X antenna ports of the terminal device, X being greater than 2; and transmitting, by the terminal device, a reference signal based on the first configuration information.

[0007] Specifically, the plurality of reference signal resources being associated with all antenna ports of the terminal device can also mean that the plurality of reference signal resources correspond to all antenna ports of the terminal device, and each of the plurality of reference signal resources being associated with X antenna ports of the terminal device can also mean that each of the plurality of reference signal resources corresponds to X antenna ports of the terminal device.

[0008] Specifically, each of the plurality of reference signal resources being associated with X antenna ports of the terminal device can comprise that each of the plurality of reference signal resources comprises X reference signal ports, the X reference signal ports being associated with the X antenna ports of the terminal device. For example, the X reference signal ports correspond to the X antenna ports of the terminal device one by one.

[0009] Exemplarily, the number of all antenna ports of the terminal device is equal to 6, and X is equal to 4.

[0010] Through the above method, each reference signal resource configured by the network device for the terminal device comprises more reference signal ports, which can make the time for the terminal device to take turns to transmit SRS on different antenna ports and report channel information shorter, thereby improving the efficiency of channel measurement.

[0011] In combination with the first aspect, in some implementations of the first aspect, all antenna ports of the terminal device are divided into a first antenna port set and a second antenna port set, the first antenna port set comprising 3 antenna ports of the terminal device, and the second antenna port set comprising another 3 antenna ports of the terminal device. The plurality of reference signal resources comprises a first reference signal resource and a second reference signal resource, the first reference signal resource comprising 4 first reference signal ports, the second reference signal resource comprising 4 second reference signal ports, 3 first reference signal ports of the 4 first reference signal ports being associated with 3 antenna ports in the first antenna port set, 3 second reference signal ports of the 4 second reference signal ports being associated with 3 antenna ports in the second antenna port set, a first reference signal port of the 4 first reference signal ports other than the 3 first reference signal ports being associated with one antenna port in the second antenna port set, and a second reference signal port of the 4 second reference signal ports other than the 3 second reference signal ports being associated with one antenna port in the first antenna port set.

[0012] Specifically, the 3 antenna ports included in the first antenna port set can be set arbitrarily, and the application does not limit this. The 3 antenna ports included in the second antenna port set are 3 antenna ports in all antenna ports of the terminal device except the 3 antenna ports included in the first antenna port set.

[0013] Through the above method, the mapping of the 4 reference signal ports included in each reference signal resource and the 4 antenna ports of the terminal device can be realized, and the scanning of the 6 antenna ports of the terminal device can also be realized.

[0014] In combination with the first aspect, in some implementations of the first aspect, the first configuration information includes a first parameter, and the method further includes: determining, by the terminal device, to use 3 reference signal ports of the 4 reference signal ports included in each reference signal resource to transmit the reference signal based on the first parameter.

[0015] Through the above method, the power of the reference signal ports associated with 2 antenna ports of the 6 antenna ports of the terminal device transmitting the reference signal will be stacked, which facilitates flexible configuration of the 2 antenna ports requiring power stacking, and can balance the channel measurement results corresponding to each antenna port of the terminal device.

[0016] In combination with the first aspect, in some implementations of the first aspect, the first reference signal port other than the 3 first reference signal ports of the 4 first reference signal ports is associated with one antenna port in the second antenna port set, including: the first reference signal port other than the 3 first reference signal ports of the 4 first reference signal ports is associated with a first antenna port in the second antenna port set, and the channel measurement result of the reference signal port associated with the first antenna port is the worst; and / or, the second reference signal port other than the 3 second reference signal ports of the 4 second reference signal ports is associated with one antenna port in the first antenna port set, including: the second reference signal port other than the 3 second reference signal ports of the 4 second reference signal ports is associated with a second antenna port in the first antenna port set, and the channel measurement result of the reference signal port associated with the second antenna port is the worst.

[0017] Through the above method, the power stacking of the 2 antenna ports with the worst channel measurement results can be configured, so that the channel measurement results of each antenna port of the terminal device are more balanced, which is beneficial to improving the channel measurement results.

[0018] In combination with the first aspect, in some implementations of the first aspect, the first configuration information includes a first parameter, and the method further includes: determining, by the terminal device, to use 3 reference signal ports of the 4 reference signal ports included in each reference signal resource to transmit the reference signal based on the first parameter.

[0019] By the above method, the terminal device can be configured to use 3 of the 4 reference signal ports included in each reference signal resource to transmit reference signals, thereby improving the power of the 3 reference signal ports included in each reference signal resource for transmitting reference signals, and facilitating improvement of the accuracy of channel measurement results.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the 3 of the 4 reference signal ports included in the first reference signal resource are the 3 first reference signal ports, and the 3 of the 4 reference signal ports included in the second reference signal resource are the 3 second reference signal ports.

[0021] Specifically, the 3 of the 4 reference signal ports included in the first reference signal resource are the 3 first reference signal ports associated with the 3 antenna ports in the first set of antenna ports, and the 3 of the 4 reference signal ports included in the second reference signal resource are the 3 second reference signal ports associated with the 3 antenna ports in the second set of antenna ports.

[0022] By the above method, not only can the scanning of the 6 antenna ports of the terminal device be implemented, but also the power of each reference signal port transmitting reference signals can be improved, which is conducive to improving the accuracy of channel measurement results.

[0023] In conjunction with the first aspect, in some implementations of the first aspect, the first reference signal resource and the second reference signal resource correspond to one transmission occasion in each period, and the method further includes: the terminal device uses different 3 first reference signal ports to transmit reference signals at different transmission occasions; and / or, the terminal device uses different 3 second reference signal ports to transmit reference signals at different transmission occasions.

[0024] Specifically, the first reference signal resource and the second reference signal resource are periodic uplink transmission resources.

[0025] The terminal device using different 3 first reference signal ports to transmit reference signals at different transmission occasions can also be that the terminal device uses different 3 first reference signal ports to transmit reference signals at different periods; and the terminal device using different 3 second reference signal ports to transmit reference signals at different transmission occasions can also be that the terminal device uses different 3 second reference signal ports to transmit reference signals at different periods.

[0026] By the above method, the 3 reference signal ports for transmitting reference signals in each reference signal resource can be configured to correspond to different 3 reference signal ports at different transmission occasions, thereby improving the randomization effect and facilitating improvement of the accuracy of channel measurement.

[0027] In a second aspect, a communication method is provided. The method can be applied to a network side, i.e., the method can be performed by a network device, or can be performed by a component (e.g., a chip or a chip system or a circuit or a communication module) of the network device, which is not limited in the present application. Hereinafter, the network device is mainly taken as an example for description.

[0028] The method can include: sending, by the network device, first configuration information, the first configuration information being used to indicate a plurality of reference signal resources, the plurality of reference signal resources being associated with all antenna ports of a terminal device, each of the plurality of reference signal resources being associated with X antenna ports of the terminal device, X being greater than 2; and receiving, by the network device, a reference signal based on the first configuration information.

[0029] Specifically, the plurality of reference signal resources being associated with all antenna ports of the terminal device can also mean that the plurality of reference signal resources correspond to all antenna ports of the terminal device, and each of the plurality of reference signal resources being associated with X antenna ports of the terminal device can also mean that each of the plurality of reference signal resources corresponds to X antenna ports of the terminal device.

[0030] Specifically, each of the plurality of reference signal resources being associated with X antenna ports of the terminal device includes that each of the plurality of reference signal resources includes X reference signal ports, the X reference signal ports being associated with the X antenna ports of the terminal device. For example, the X reference signal ports correspond to the X antenna ports of the terminal device one by one.

[0031] Exemplarily, the number of all antenna ports of the terminal device is equal to 6, and X is equal to 4.

[0032] Through the above method, each reference signal resource configured by the network device for the terminal device includes more reference signal ports, which can make the time for the terminal device to take turns to send SRS on different antenna ports and report channel information shorter, thereby improving the efficiency of channel measurement.

[0033] With reference to the second aspect, in some implementations of the second aspect, all antenna ports of the terminal device are divided into a first antenna port set and a second antenna port set, the first antenna port set includes 3 antenna ports of the terminal device, and the second antenna port set includes another 3 antenna ports of the terminal device. The plurality of reference signal resources include a first reference signal resource and a second reference signal resource, the first reference signal resource includes 4 first reference signal ports, 3 first reference signal ports of the 4 first reference signal ports are associated with 3 antenna ports in the first antenna port set, 3 second reference signal ports of the 4 second reference signal ports are associated with 3 antenna ports in the second antenna port set, a first reference signal port other than the 3 first reference signal ports in the 4 first reference signal ports is associated with one antenna port in the second antenna port set, and a second reference signal port other than the 3 second reference signal ports in the 4 second reference signal ports is associated with one antenna port in the first antenna port set.

[0034] Specifically, the 3 antenna ports included in the first antenna port set can be set arbitrarily, and the application does not limit this. The 3 antenna ports included in the second antenna port set are 3 antenna ports of the terminal device other than the 3 antenna ports included in the first antenna port set.

[0035] Through the above method, the mapping of the 4 reference signal ports included in each reference signal resource to the 4 antenna ports of the terminal device can be implemented, and the scanning of the 6 antenna ports of the terminal device can also be implemented.

[0036] With reference to the second aspect, in some implementations of the second aspect, the first configuration information includes a first parameter, and the first parameter is used for the terminal device to determine to transmit the reference signal by using the 4 reference signal ports included in each reference signal resource.

[0037] Through the above method, the power of the reference signal transmitted by the reference signal ports associated with 2 antenna ports of the 6 antenna ports of the terminal device will be stacked, which facilitates flexible configuration of the 2 antenna ports requiring power stacking, and can balance the channel measurement results corresponding to each antenna port of the terminal device.

[0038] In some implementations of the second aspect, in the fourth implementation of the second aspect, the first reference signal port other than the three first reference signal ports in the four first reference signal ports is associated with a first antenna port in the second antenna port set, and the channel measurement result of the reference signal port associated with the first antenna port is the worst; and / or the second reference signal port other than the three second reference signal ports in the four second reference signal ports is associated with a second antenna port in the first antenna port set, and the channel measurement result of the reference signal port associated with the second antenna port is the worst.

[0039] By the above method, the power stacking of the two antenna ports with the worst channel measurement results can be configured, so that the channel measurement results of each antenna port of the terminal device are more balanced, which is beneficial to improving the channel measurement results.

[0040] In some implementations of the second aspect, the first configuration information includes a first parameter, and the first parameter is used by the terminal device to determine to transmit the reference signal by using three reference signal ports in the four reference signal ports included in each reference signal resource.

[0041] By the above method, the terminal device can be configured to transmit the reference signal by using three reference signal ports in the four reference signal ports included in each reference signal resource, so as to improve the power of the three reference signal ports included in each reference signal resource for transmitting the reference signal, which is beneficial to improving the accuracy of the channel measurement results.

[0042] In some implementations of the second aspect, the three reference signal ports in the four reference signal ports included in the first reference signal resource are the three first reference signal ports, and the three reference signal ports in the four reference signal ports included in the second reference signal resource are the three second reference signal ports.

[0043] Specifically, the three reference signal ports in the four reference signal ports included in the first reference signal resource are the three first reference signal ports associated with the three antenna ports in the first antenna port set, and the three reference signal ports in the four reference signal ports included in the second reference signal resource are the three second reference signal ports associated with the three antenna ports in the second antenna port set.

[0044] By the above method, not only the scanning of the 6 antenna ports of the terminal device can be realized, but also the power of sending the reference signal by each reference signal port can be improved, which is beneficial to improving the accuracy of the channel measurement result.

[0045] With reference to the second aspect, in some implementations of the second aspect, the first reference signal resource and the second reference signal resource correspond to one sending occasion in each period, the 3 first reference signal ports correspond to different 3 first reference signal ports in different sending occasions, and / or the 3 second reference signal ports correspond to different 3 second reference signal ports in different sending occasions.

[0046] Specifically, the first reference signal resource and the second reference signal resource are periodic uplink transmission resources.

[0047] The 3 first reference signal ports corresponding to different 3 first reference signal ports in different sending occasions can also be that the 3 first reference signal ports correspond to different 3 first reference signal ports in different periods, and the 3 second reference signal ports corresponding to different 3 second reference signal ports in different sending occasions can also be that the 3 second reference signal ports correspond to different 3 second reference signal ports in different periods.

[0048] By the above method, the 3 reference signal ports in each reference signal resource for sending the reference signal can be configured to correspond to different 3 reference signal ports in different sending occasions, the randomization effect is improved, and the accuracy of the channel measurement is improved.

[0049] In a third aspect, a communication apparatus is provided. The apparatus includes a transceiver configured to receive first configuration information, the first configuration information being used to indicate a plurality of reference signal resources, the plurality of reference signal resources being associated with all antenna ports of a terminal device, each reference signal resource in the plurality of reference signal resources being associated with X antenna ports of the terminal device, X being greater than 2; and the transceiver is further configured to send a reference signal based on the first configuration information.

[0050] Exemplarily, the number of all antenna ports of the terminal device is equal to 6, and X is equal to 4.

[0051] In some implementations of the third aspect, the total antenna ports of the terminal device are divided into a first antenna port set and a second antenna port set, the first antenna port set includes 3 antenna ports of the terminal device, and the second antenna port set includes another 3 antenna ports of the terminal device. The plurality of reference signal resources include a first reference signal resource and a second reference signal resource, the first reference signal resource includes 4 first reference signal ports, 3 first reference signal ports of the 4 first reference signal ports are associated with 3 antenna ports in the first antenna port set, 3 second reference signal ports of the 4 second reference signal ports are associated with 3 antenna ports in the second antenna port set, a first reference signal port other than the 3 first reference signal ports in the 4 first reference signal ports is associated with one antenna port in the second antenna port set, and a second reference signal port other than the 3 second reference signal ports in the 4 second reference signal ports is associated with one antenna port in the first antenna port set.

[0052] In some implementations of the third aspect, the first configuration information includes a first parameter, and the communication device further includes a processing unit configured to determine, based on the first parameter, that the reference signal is transmitted using 3 reference signal ports of the 4 reference signal ports included in each reference signal resource.

[0053] In some implementations of the third aspect, the association of the first reference signal port other than the 3 first reference signal ports in the 4 first reference signal ports with one antenna port in the second antenna port set includes that the first reference signal port is associated with a first antenna port in the second antenna port set, and a channel measurement result of a reference signal port associated with the first antenna port is the worst; and / or the association of the second reference signal port other than the 3 second reference signal ports in the 4 second reference signal ports with one antenna port in the first antenna port set includes that the second reference signal port is associated with a second antenna port in the first antenna port set, and a channel measurement result of a reference signal port associated with the second antenna port is the worst.

[0054] In some implementations of the third aspect, the first configuration information includes a first parameter, and the communication device further includes a processing unit configured to determine, based on the first parameter, that the reference signal is transmitted using 3 reference signal ports of the 4 reference signal ports included in each reference signal resource.

[0055] In some implementations of the third aspect, the 3 of the 4 reference signal ports included in the first reference signal resource are the 3 first reference signal ports, and the 3 of the 4 reference signal ports included in the second reference signal resource are the 3 second reference signal ports.

[0056] In some implementations of the third aspect, the first reference signal resource and the second reference signal resource correspond to one transmission occasion in each period, and the transceiver is further configured to transmit reference signals using different 3 first reference signal ports in different transmission occasions, and / or the transceiver is further configured to transmit reference signals using different 3 second reference signal ports in different transmission occasions.

[0057] The related explanations and beneficial effects of the third aspect can be found in the description of the first aspect.

[0058] In the fourth aspect, a communication apparatus is provided. The apparatus includes a transceiver configured to transmit first configuration information, the first configuration information being used to indicate a plurality of reference signal resources, the plurality of reference signal resources being associated with all antenna ports of a terminal device, each of the plurality of reference signal resources being associated with X antenna ports of the terminal device, X being greater than 2, and the transceiver is further configured to receive reference signals based on the first configuration information.

[0059] For example, the number of all antenna ports of the terminal device is equal to 6, and X is equal to 4.

[0060] In some implementations of the fourth aspect, all antenna ports of the terminal device are divided into a first antenna port set and a second antenna port set, the first antenna port set including 3 antenna ports of the terminal device, and the second antenna port set including another 3 antenna ports of the terminal device. The plurality of reference signal resources includes a first reference signal resource and a second reference signal resource, the first reference signal resource including 4 first reference signal ports, the second reference signal resource including 4 second reference signal ports, 3 of the 4 first reference signal ports being associated with 3 antenna ports in the first antenna port set, 3 of the 4 second reference signal ports being associated with 3 antenna ports in the second antenna port set, a first reference signal port other than the 3 first reference signal ports in the 4 first reference signal ports being associated with one antenna port in the second antenna port set, and a second reference signal port other than the 3 second reference signal ports in the 4 second reference signal ports being associated with one antenna port in the first antenna port set.

[0061] In some implementations of the fourth aspect, the first configuration information includes a first parameter, and the first parameter is used by the terminal device to determine that 4 reference signal ports included in each reference signal resource are used to transmit the reference signal.

[0062] In some implementations of the fourth aspect, in addition to the 3 first reference signal ports, a first reference signal port of the 4 first reference signal ports is associated with a first antenna port of the second antenna port set, and a channel measurement result of a reference signal port associated with the first antenna port is the worst; and / or, in addition to the 3 second reference signal ports, a second reference signal port of the 4 second reference signal ports is associated with a second antenna port of the first antenna port set, and a channel measurement result of a reference signal port associated with the second antenna port is the worst.

[0063] In some implementations of the fourth aspect, the first configuration information includes a first parameter, and the first parameter is used by the terminal device to determine that 3 reference signal ports of 4 reference signal ports included in each reference signal resource are used to transmit the reference signal.

[0064] In some implementations of the fourth aspect, the 3 reference signal ports of the 4 reference signal ports included in the first reference signal resource are the 3 first reference signal ports, and the 3 reference signal ports of the 4 reference signal ports included in the second reference signal resource are the 3 second reference signal ports.

[0065] In some implementations of the fourth aspect, the first reference signal resource and the second reference signal resource correspond to one transmission occasion in each period, the 3 first reference signal ports correspond to different 3 first reference signal ports in different transmission occasions, and / or the 3 second reference signal ports correspond to different 3 second reference signal ports in different transmission occasions.

[0066] The related explanations and beneficial effects of the fourth aspect can be referred to the description of the second aspect.

[0067] In a fifth aspect, a communication apparatus is provided. The apparatus is configured to perform the method in the first aspect or any possible implementation of the method in the first aspect, or the apparatus is configured to perform the method in the second aspect or any possible implementation of the method in the second aspect. Specifically, the apparatus can include a unit and / or module configured to perform the method in the first aspect or any possible implementation of the method in the first aspect, or the apparatus can include a unit and / or module configured to perform the method in the second aspect or any possible implementation of the method in the second aspect, such as a processing unit and / or a communication unit.

[0068] In an implementation, the apparatus is a communication device, such as a terminal device, or a network device. When the apparatus is a communication device, the communication unit can be a transceiver, or an input / output interface; and the processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0069] In another implementation, the apparatus is a chip, chip system or circuit, or a communication module for a communication device, such as a terminal device, or a network device. When the apparatus is a chip, chip system or circuit for a communication device, the communication unit can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuitry, etc. on the chip, chip system or circuit; and the processing unit can be at least one processor, a processing circuit or a logic circuit, etc.

[0070] In a sixth aspect, a communication apparatus is provided. The apparatus includes at least one processor configured to execute computer programs or instructions to perform the method in the first aspect or any possible implementation of the method in the first aspect. Optionally, the apparatus further includes a memory configured to store the computer programs or instructions. Optionally, the apparatus further includes a communication interface coupled to the processor, and configured to input the computer programs or instructions to the processor, or output information in the processor.

[0071] In an implementation, the apparatus is a communication device, such as a terminal device, or a network device.

[0072] In another implementation, the apparatus is a chip, chip system or circuit, or a communication module for a communication device, such as a terminal device, or a network device.

[0073] In a seventh aspect, a processor is provided. The processor is configured to perform the method in the first aspect or the second aspect.

[0074] For the sending and obtaining / receiving operations involved by the processor, if no special description is made, or if it does not conflict with the actual role or internal logic in the related description, it can be understood as the processor output and receiving, input operations, and also can be understood as the sending and receiving operations performed by the radio frequency circuit and the antenna, and the present application does not limit this.

[0075] Optionally, the apparatus further comprises a memory for storing a program; correspondingly, the at least one processor is configured to execute the computer program or instructions in the memory.

[0076] Optionally, the apparatus further comprises a communication interface. The communication interface is coupled with the processor, and can be used for inputting information to the processor, or outputting information in the processor.

[0077] In an eighth aspect, a computer readable storage medium is provided, which stores program codes for execution by an apparatus, and the program codes comprise codes for executing the method in any possible implementation manner of the first aspect or the second aspect.

[0078] In a ninth aspect, a computer program product containing instructions which, when the computer program product is executed on a computer, cause the computer to execute the method in any possible implementation manner of the first aspect or the second aspect.

[0079] In a tenth aspect, a chip is provided, which comprises a processor and a communication interface. The processor reads instructions on a memory through the communication interface, and executes the method provided by the first aspect or the second aspect in any implementation manner.

[0080] Optionally, the chip is a Modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core.

[0081] Optionally, as an implementation manner, the chip further comprises a memory, and the memory stores computer programs or instructions. The processor is configured to execute the computer programs or instructions on the memory, and when the computer programs or instructions are executed, the processor is configured to execute the method provided by the first aspect or the second aspect in any implementation manner.

[0082] In an eleventh aspect, a computer program product containing instructions is provided, which, when the computer program product is executed on a computer, causes the computer to execute the method provided by the first aspect or the second aspect in any implementation manner.

[0083] In a twelfth aspect, a communication system is provided, which comprises the terminal device and the network device as described above. Attached Figure Description

[0084] Figure 1 is a schematic diagram of a wireless communication system applicable to an embodiment of this application.

[0085] Figure 2 is another schematic diagram of a wireless communication system applicable to an embodiment of this application.

[0086] Figure 3 is a schematic diagram of the resource configuration of 1T6R and 2T6R.

[0087] Figure 4 is a schematic diagram of a communication method 400 provided in an embodiment of this application.

[0088] Figure 5 is a schematic diagram of the resource configuration of 4T6R applicable to embodiments of this application.

[0089] Figure 6 is a schematic diagram of frequency division multiplexing.

[0090] Figure 7 is a schematic diagram of the resource configuration of 3T6R applicable to embodiments of this application.

[0091] Figure 8 is a schematic diagram of the resource configuration of three different SRS ports applicable to embodiments of this application.

[0092] Figure 9 is a schematic diagram of a communication device 900 provided in an embodiment of this application.

[0093] Figure 10 is a schematic diagram of another communication device 1000 provided in an embodiment of this application.

[0094] Figure 11 is a schematic diagram of a chip system 1100 provided in an embodiment of this application. Detailed Implementation

[0095] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0096] The technical solutions provided in the present application can be applied to various communication systems, for example, a 5th generation (5G) or new radio (NR) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, and the like. The technical solutions provided in the present application can also be applied to future communication systems. The technical solutions provided in the present application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, a universal mobile telecommunication system (UMTS), machine type communication (MTC), and an internet of things (IoT) communication system. The technical solutions provided in the present application can also be applied to a low-frequency scenario, a high-frequency scenario, a terahertz, and the like.

[0097] The technical solutions provided in the present application can also be applied to a non-terrestrial network (NTN) system, such as an inter-satellite communication and a satellite communication. As an example, a satellite communication system includes a satellite base station and a terminal device. The satellite base station provides a communication service for the terminal device. The satellite base station can also communicate with a base station. The satellite can act as a base station or a terminal device. The satellite can be an unmanned aerial vehicle, a hot air balloon, a low-orbit satellite, a medium-orbit satellite, a high-orbit satellite, and the like. The satellite can also be a non-ground base station or a non-ground device.

[0098] A device in a communication system can send a signal to another device or receive a signal from another device. The signal can include information, signaling, or data, and the like. The device can be replaced by an entity, a network entity, a network element, a communication device, a communication module, a node, a communication node, and the like. The present disclosure describes the device as an example. For example, the communication system can include at least one terminal device and at least one network device. The network device can send a downlink signal to the terminal device, and / or the terminal device can send an uplink signal to the network device.

[0099] The terminal device in the embodiments of the present application can be a device or module with corresponding communication functions for accessing the above communication system. The terminal device can include various devices with wireless communication functions, which can be used to connect people, things, machines, etc. The terminal device can be widely used in various scenarios, such as cellular communication, D2D, V2X, peer to peer, M2M, MTC, IoT, single transmitting and receiving point (Single-TRP), multiple transmitting and receiving point (Multi-TRP), virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city UAV, robot, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery, etc. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. The terminal device can be a user equipment (UE) of the 3rd generation partnership project (3GPP) standard, a terminal, a fixed device, a mobile station device or a mobile device, a subscriber unit, a handset, a vehicle-mounted device, a wearable device, a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a wireless data card, a personal digital assistant (PDA), a computer, a tablet computer, a notebook computer, a wireless modem, a handset, a laptop computer, a computer with wireless transceiver function, a smart book, a vehicle, a satellite, a global positioning system (GPS) device, a target tracking device, an aircraft (such as a drone, a helicopter, a multi-helicopter, a four-helicopter, or an airplane, etc.), a ship, a remote control device, a smart home device, an industrial device, a transport vehicle with wireless communication function, a communication module, a road side unit (RSU) with terminal function, or a device built in the above device (such as a communication module, a modem or a chip in the above device, etc.), or other processing devices connected to the wireless modem.For the convenience of description, a terminal device is taken as an example to be described hereinafter.

[0100] It should be understood that in some scenarios, the terminal device can also be used to act as a base station. For example, the terminal device can act as a scheduling entity which provides sidelink signals between terminal devices in scenarios such as V2X, D2D or end-to-end.

[0101] In embodiments of the present application, the apparatus for implementing the functions of the terminal device, i.e., the terminal apparatus, can be a terminal device or an apparatus capable of supporting the terminal device to implement the functions, such as a chip system or a chip or a circuit or a communication module (i.e., a communication module performing a communication function), which can be installed in the terminal device. In embodiments of the present application, the chip system can be composed of a chip or can include a chip and other discrete devices. In addition, program instructions for performing corresponding communication functions can also be configured in the apparatus.

[0102] The network device in embodiments of the present application can be a device or module with corresponding communication functions. The network device can be a device for communicating with the terminal device, and the network device can also be referred to as an access network device or a radio access network device, such as a network device which can be a base station. The network device in embodiments of the present application can refer to a radio access network (RAN) node (or device) for accessing the terminal device to a wireless network. The base station can broadly cover various names in the following or be replaced by the following names, such as: Node B (NodeB), evolved Node B (eNB), next generation Node B (gNB), relay station, access point, transmitting and receiving point (TRP), transmission point, primary station, secondary station, motor slide retainer (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), remote radio head (RRH), centralized unit (CU), distributed unit (DU), positioning node, etc.

[0103] The base station can be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station can also refer to a communication module, a modem, or a chip for being disposed in the aforementioned device or apparatus. The base station can also be a mobile switching center, a device assuming a base station function in D2D, V2X, M2M communication, a network side device in a future communication network, a device assuming a base station function in a future communication system, and the like. The base station can support networks of the same or different access technologies. Embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0104] The base station can be fixed or mobile. For example, a helicopter or a drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or a drone can be configured to act as a device that communicates with another base station.

[0105] It should be noted that in different systems, the CU (or centralized unit control plane (CU-CP) and centralized unit user plane (CU-UP)), DU, or radio unit (RU) can also have different names, but those skilled in the art can understand their meanings. For example, the radio access network can also be an open radio access network (ORAN) architecture, in which the CU can also be referred to as an open centralized unit (O-CU), the DU can also be referred to as an open distributed unit (O-DU), the CU-CP can also be referred to as an open centralized unit control plane (O-CU-CP), the CU-UP can also be referred to as an open centralized unit user plane (O-CU-UP), and the RU can also be referred to as an open radio unit (O-RU). Any of the CU (or CU-CP, CU-UP), DU, and RU in the present application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0106] In embodiments of the present application, the apparatus for implementing the function of the network device can be a network device, or can be an apparatus capable of supporting the network device to implement the function, such as a chip system or a chip or a circuit or a communication module (i.e., a communication module performing a communication function), which can be installed in the network device. In embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. In addition, program instructions for performing corresponding communication functions can also be configured in the apparatus. In embodiments of the present application, only the apparatus for implementing the function of the network device is taken as an example of the network device, and the scheme of the embodiments of the present application is not limited.

[0107] The network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water; and can also be deployed on airplanes, balloons and satellites in the air. The scenarios in which the network device and the terminal device are located are not limited in embodiments of the present application. In addition, the terminal device and the network device can be hardware devices, or software functions running on special hardware, software functions running on general hardware, such as virtualized functions instantiated on a platform (for example, a cloud platform), or entities including special or general hardware devices and software functions. The specific forms of the terminal device and the network device are not limited in the present application.

[0108] First, a communication system suitable for embodiments of the present application is briefly introduced as follows.

[0109] Referring to FIG. 1, FIG. 1 is a schematic diagram of a wireless communication system suitable for embodiments of the present application.

[0110] As shown in FIG. 1, the wireless communication system includes a radio access network 100. The radio access network 100 can be a future version of a radio access network, or a traditional (for example, 5G, 4G, 3G or 2G) radio access network. One or more terminal devices (120a-120j, collectively referred to as 12) can be connected to each other or connected to one or more network devices (110a, 110b, collectively referred to as 110) in the radio access network 100. The network elements in the wireless communication system are connected through an interface (for example, an NG interface, an Xn interface), or an air interface.

[0111] FIG. 1 is only a schematic diagram, and the wireless communication system can also include other devices, such as core network (CN) devices, wireless relay devices and / or wireless backhaul devices, etc., which are not shown in FIG. 1.

[0112] Referring to FIG. 2, FIG. 2 is a schematic diagram of an ORAN system applicable to embodiments of the present application. The ORAN system includes a core network device, an access network device (e.g., a RAN), and a UE. Optionally, the ORAN system can include other components than those shown in FIG. 1, which are not limited in the present application. The access network device communicates with the core network device through a backhaul link and communicates with the terminal device through an air interface. For example, the BBU in the access network device communicates with the core network device through a backhaul link, and the RU in the access network device communicates with at least one terminal device through an air interface. The BBU can communicate with at least one RU through a front-haul link, and the BBU and the RU can be co-located or not co-located. The BBU includes at least one CU and at least one DU, and the CU and the DU can communicate through at least one mid-haul link.

[0113] In some deployments, the CU is a logical node that hosts radio resource control (RRC), service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network device. The CU can be connected to network nodes such as core network through some interfaces, which can be E2 interface, etc. Optionally, the CU can have part of the functions of the core network. The CU (e.g., PDCP layer and higher layer of the CU) is connected to the DU (e.g., radio link control (RLC) layer and lower layer) through some interfaces, which can be F1 interface, etc. In some examples, these interfaces (e.g., F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1 application protocol (F1AP) is an application protocol of F1 interface, which defines signaling procedures of F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0114] In some deployments, a CU can be split into a CU-CP and a CU-UP. The CU-CP is a logical node that carries the control plane part of PDCP (PDCP-C) layer and RRC layer, and is used to implement the control plane function of the CU. The CU-CP can interact with a network element in the core network that is used to implement the control plane function. The network element in the core network that is used to implement the control plane function can be an access and mobility function network element, such as an access and mobility management function (AMF) network element in a 5G system, which is used to be responsible for mobility management in a mobile network, such as location updating of a terminal device, registration network of a terminal device, handover of a terminal device, and the like. The CU-UP is a logical node that carries the user plane part of PDCP (PDCP-U) layer and SDAP layer, and is used to implement the user plane function of the CU. The CU-UP can interact with a network element in the core network that is used to implement the user plane function. The network element in the core network that is used to implement the user plane function can be a user plane function network element, such as a user plane function (UPF) network element in a 5G system, which is used to be responsible for forwarding and receiving data in a terminal device. The above configuration of the CU and the DU is only an example, and in actual applications, the CU and the DU can also be configured to have functions according to needs. For example, the CU or the DU can be configured to have more protocol layer functions, or the CU or the DU can be configured to have partial processing functions of the protocol layer. For example, partial functions of the RLC layer and functions of the protocol layer above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and functions of the protocol layer below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to the service type or other system requirements, for example, functions that need to meet a relatively short delay requirement in processing time are arranged in the DU, and functions that do not need to meet the delay requirement are arranged in the CU.

[0115] In some deployments, a DU is a logical node that carries an RLC layer, a medium access control (MAC) layer, a higher physical (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU is connected to the RU through some interfaces, which can be a front-haul interface. In some examples, the Higher PHY layer includes part of the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, and the like.

[0116] In some deployments, a RU is a logical node that hosts lower physical layer (Lower PHY) and radio frequency (RF) processing. In some examples, a RU can be a TRP or a RRH or other similar functional entity. In some examples, the Low-PHY includes portions of PHY processing such as fast Fourier transform (FFT), inverse fast Fourier transformation (IFFT), digital beamforming and filtering, and other processing functions. A RU communicates with one or more terminal devices over a wireless link.

[0117] A DU and a RU can or can not be co-located. A DU and a RU exchange control plane information and user plane information over a front-haul link via a lower-layer split control, user, and synchronization plane (LLS-CUS) interface. The LLS-CUS can include a lower-layer split control (LLS-C) interface and a lower-layer split user (LLS-U) interface that provide a control plane (C-Plane) and a user plane (U-Plane), respectively. In some examples, the control plane refers to real-time control between a DU and a RU. A DU and a RU exchange management information over a lower-layer split management plane (LLS-M) interface of the front-haul link, and the management plane (M-Plane) refers to non-real-time management operations between a DU and a RU.

[0118] A DU and a RU can cooperate to collectively implement the functionality of the PHY layer. A DU can be connected to one or more RUs. The functionality of a DU and a RU can be configured in a number of ways depending on the design. For example, a DU can be configured to implement baseband functionality and a RU can be configured to implement mid- RF functionality. As another example, a DU can be configured to implement high layer functionality in the PHY layer and a RU can be configured to implement low layer functionality in the PHY layer or to implement the low layer functionality and RF functionality. High layer functionality in the PHY layer can include a portion of the functionality of the PHY layer that is closer to the MAC layer, and low layer functionality in the PHY layer can include another portion of the functionality of the PHY layer that is closer to the mid-RF side.

[0119] To facilitate understanding of the technical solutions of the present application, the following briefly introduces the terms involved in the embodiments of the present application.

[0120] 1. Sounding Reference Signal (SRS)

[0121] SRS is an uplink reference signal sent by a terminal device to a network device. In the NR system, the network device can obtain uplink channel information by using SRS; in the TDD system, the network device can also obtain downlink channel information by measuring SRS through channel reciprocity. The network device can perform data scheduling for the terminal device based on the obtained channel information.

[0122] 2. Antenna Port

[0123] It can be simply referred to as a port. It can be understood as a transmitting antenna identified by a receiving device, or a transmitting antenna that can be distinguished in space. An antenna port can be pre-configured for each virtual antenna, each virtual antenna can be a weighted combination of multiple physical antennas, and each antenna port can correspond to the transmission of a reference signal. Therefore, each antenna port can be referred to as a reference signal port, such as a channel state information reference signal (CSI-RS) port, an SRS port, etc. In embodiments of the present application, an antenna port can refer to a transceiver unit (TxRU).

[0124] 3. Reference Signal Resource: A transmission attribute of a reference signal can be configured.

[0125] Generally, a reference signal is configured in the form of a resource, that is, a network device can configure a reference signal in the form of a resource to a terminal device. A reference signal resource generally includes parameters related to a reference signal, such as the location of the time domain resource of the reference signal, the location of the frequency domain resource of the reference signal, the number of reference signal ports, the time domain type (periodic / semi-static / non-periodic) of the reference signal, etc. A transmitting terminal device can transmit a reference signal based on a reference signal resource, and a receiving terminal device can receive a reference signal based on a reference signal resource.

[0126] In order to distinguish different reference signal resources, each reference signal resource can correspond to a reference signal resource identifier, such as a CSI-RS resource indicator (CRI), an SSB resource indicator (SSBRI), and an SRS resource index (SRI).

[0127] 4. SRS Antenna Selection

[0128] This can be abbreviated as SRS antenna selection. It refers to the process where a terminal device takes turns sending SRS and reporting channel information on different antenna ports. Generally, 5G terminal devices are equipped with multiple transmit and receive antennas. For example, current mainstream 5G mobile phones and customer premises equipment (CPE) use 2 transmit antennas and 4 receive antennas (denoted as 2T4R). If the terminal device can fully utilize its multiple antennas to send SRS and report channel information in turn, the network device can obtain more comprehensive channel information. Consequently, the channel information measured by the network device is more accurate, and the data transmission rate is faster.

[0129] 5. SRS Chosen One with 1T6R and SRS Chosen One with 2T6R

[0130] Current market demand indicates that the peak data transmission rate of the downlink needs to be increased to 1.6Gbps. To meet this demand, a 6Rx receiver is required to receive data during downlink data transmission. A 6Rx receiver is a receiving device containing six receiving antennas, thereby effectively improving spectrum efficiency. Compared to a 4Rx receiver, a 6Rx receiver can significantly increase the downlink throughput of a single user in a cell and also increase the coverage of users at the cell edge. Using a 6Rx receiver to receive data is also one of the main practical ways to enable 256QAM and higher-order modulation schemes.

[0131] The transmit / receive capabilities of the 6Rx receiver currently under discussion can include 1 transmit antenna and 6 receive antennas (denoted as 1T6R) or 2 transmit antennas and 6 receive antennas (denoted as 2T6R).

[0132] For a terminal device with 1T6R transceiving capability, the network device can configure the terminal device with one SRS resource set, the SRS resource set including 6 SRS resources, each SRS resource occupying different OFDM symbols, each SRS resource including 1 SRS port, and the SRS port included in each SRS resource corresponding to different antenna ports of the terminal device, as shown in (a) of FIG. 3. For example, the network device configures the terminal device with an SRS resource set including SRS resource 1, SRS resource 2, SRS resource 3, SRS resource 4, SRS resource 5, and SRS resource 6, SRS resource 1 occupies OFDM1, SRS resource 2 occupies OFDM3, SRS resource 3 occupies OFDM5, SRS resource 4 occupies OFDM7, SRS resource 5 occupies OFDM9, and SRS resource 6 occupies OFDM11, 1 SRS port included in SRS resource 1 corresponds to antenna port p0 of the terminal device, 1 SRS port included in SRS resource 2 corresponds to antenna port p1 of the terminal device, 1 SRS port included in SRS resource 3 corresponds to antenna port p2 of the terminal device, 1 SRS port included in SRS resource 4 corresponds to antenna port p3 of the terminal device, 1 SRS port included in SRS resource 5 corresponds to antenna port p4 of the terminal device, and 1 SRS port included in SRS resource 6 corresponds to antenna port p5 of the terminal device. Considering that additional antenna switching guard intervals need to be introduced between different SRS resources used by the terminal device, the terminal device needs to occupy about 11 OFDM symbols to complete SRS transmission.

[0133] For a terminal device with 2T6R transceiving capability, the network device can configure the terminal device with one SRS resource set, the SRS resource set including 3 SRS resources, each SRS resource occupying different OFDM symbols, each SRS resource including 2 SRS ports, and the 2 SRS ports included in each SRS resource corresponding to different antenna ports of the terminal device, as shown in (b) of FIG. 3. For example, the network device configures the terminal device with an SRS resource set including SRS resource 1, SRS resource 2, and SRS resource 3, SRS resource 1 occupies OFDM1, SRS resource 2 occupies OFDM3, and SRS resource 3 occupies OFDM5, 2 SRS ports included in SRS resource 1 correspond to antenna port p0 and antenna port p1 of the terminal device, 2 SRS ports included in SRS resource 2 correspond to antenna port p2 and antenna port p3 of the terminal device, and 2 SRS ports included in SRS resource 3 correspond to antenna port p4 and antenna port p5 of the terminal device. Considering that additional antenna switching guard intervals need to be introduced between different SRS resources used by the terminal device, the terminal device needs to occupy about 5 OFDM symbols to complete SRS transmission.

[0134] The current terminal device sends SRS to the network device, and the number of occupied OFDM symbols is large, which leads to low efficiency of channel measurement.

[0135] Therefore, the present application proposes a communication method 400. Each SRS resource configured by the network device for the terminal device can include more SRS ports, so that the time for the terminal device to send SRS on different antenna ports and report channel information will be shorter, thereby improving the efficiency of channel measurement.

[0136] Before introducing the scheme of the present application, the following points are explained.

[0137] (1) In the present application, "indication" can include direct indication, indirect indication, display indication, and implicit indication. When describing that certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0138] In the present application, the information indicated by various information is referred to as to-be-indicated information. In the specific implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or the index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, wherein the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a part of the to-be-indicated information, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of each information agreed in advance (for example, the protocol stipulates), thereby reducing the indication overhead to a certain extent. In addition, the to-be-indicated information can be sent as a whole, or can be sent separately in multiple sub-information, and the sending period and / or sending time of these sub-information can be the same or different.

[0139] (2) In the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as "output" of the chip interface, and "receiving" can also be understood as "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between the network device and the terminal device, or can be carried out within the device, for example, between components, modules, chips, software modules or hardware modules within the device through bus, wire or interface.

[0140] (3) In various embodiments of the present application, the terms and / or descriptions among different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0141] (4) In the present application, "first", "second" are only convenient for description, used for distinguishing objects, and not used to limit the scope of the embodiments of the present application. It is not used to describe the order or sequence of characteristics. It should be understood that the objects thus described can be interchanged under appropriate circumstances, so as to be able to describe the schemes other than the embodiments of the present application.

[0142] (5) In the present application, the words such as "exemplarily", "for example" are used to represent examples, illustrations or descriptions. Any embodiment or design scheme described as "example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the word "example" is intended to present the concept in a specific way. In the embodiments of the present application, "of", "corresponding" and "corresponding" can be used interchangeably at times. It should be pointed out that when the distinction is not emphasized, the meanings expressed are consistent.

[0143] The method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments provided by the present application can be applied to the communication system shown in FIG. 1, without limitation.

[0144] In the following embodiments, terminal devices and network devices are exemplarily illustrated. The terminal devices can be replaced by constituent components (such as chips or chip systems or circuits) of the terminal devices, and the network devices can be replaced by constituent components (such as chips or chip systems or circuits) of the network devices.

[0145] Referring to FIG. 4, FIG. 4 is a schematic diagram of a communication method 400 provided by an embodiment of the present application. The method 400 shown in FIG. 4 can include the following steps:

[0146] S410, the network device sends first configuration information. Correspondingly, the terminal device receives the first configuration information.

[0147] Specifically, the first configuration information is used to indicate a plurality of reference signal resources, the plurality of reference signal resources are associated with all antenna ports of the terminal device, each reference signal resource in the plurality of reference signal resources is associated with X antenna ports of the terminal device, and X is greater than 2.

[0148] Each of the plurality of reference signal resources is associated with X antenna ports of the terminal device, specifically, each of the plurality of reference signal resources includes X reference signal ports, which are associated with the X antenna ports of the terminal device. Exemplarily, the X reference signal ports being associated with the X antenna ports of the terminal device can be that the X reference signal ports are one-to-one corresponding to the X antenna ports of the terminal device.

[0149] Exemplarily, embodiments of the present application are described taking an example that the transceiving capability of the terminal device can include 4 transmitting antennas and 6 receiving antennas (denoted as 4T6R), that is, the number of all antenna ports of the terminal device is equal to 6, and X is equal to 4.

[0150] The network device can configure one reference signal resource set for the terminal device, the reference signal resource set including the plurality of reference signal resources described above, for example, the plurality of reference signal resources are 2 reference signal resources, which are a first reference signal resource and a second reference signal resource respectively. Each reference signal resource includes 4 reference signal ports, that is, the first reference signal resource includes 4 first reference signal ports, and the second reference signal resource includes 4 second reference signal ports.

[0151] Exemplarily, embodiments of the present application are described taking SRS as the reference signal, but the present application does not limit the type of specific reference signal. The first reference signal resource described above is denoted as SRS resource 1 hereinafter, and the 4 first reference signal ports included in the first reference signal resource are denoted as 4 SRS ports hereinafter, which are port0, port1, port2, and port3 respectively. The second reference signal resource described above is denoted as SRS resource 2 hereinafter, and the 4 second reference signal ports included in the second reference signal resource are denoted as 4 SRS ports hereinafter, which are port4, port5, port6, and port7 respectively. Each SRS resource can be identified by SRI, and each SRS resource is composed of SRS ports, consecutive OFDM symbols, time domain starting symbol l0, and frequency domain starting position k0. Wherein, The value range of NrofSRS-Ports can be {4, 8}, The value range of NrofSymbolsSRS-PerSSB can be {1, 2, 4}, and embodiments of the present application are described taking The value of NrofSymbolsSRS-PerSSB is 4, The value of NrofSymbolsSRS-PerSSB is 1.

[0152] Specifically, indexes of all antenna ports of the terminal device are respectively p0, p1, p2, p3, p4, and p5, all antenna ports of the terminal device can be divided into a first antenna port set and a second antenna port set, the first antenna port set includes 3 antenna ports of the terminal device, and the second antenna port set includes another 3 antenna ports of the terminal device. In one example, the first antenna port set includes antenna ports p0, p1, and p2 of the terminal device, and the second antenna port set includes antenna ports p3, p4, and p5 of the terminal device. In another example, the first antenna port set includes antenna ports p0, p1, and p5 of the terminal device, and the second antenna port set includes antenna ports p2, p3, and p4 of the terminal device. The 3 antenna ports of the terminal device included in the first antenna port set of the embodiments of the present application can be set arbitrarily, and the present application does not limit this, and the 3 antenna ports of the terminal device included in the second antenna port set are the remaining 3 antenna ports of the terminal device except the 3 antenna ports included in the first antenna port set.

[0153] In the formula, 3 of the 4 first reference signal ports are associated with the 3 antenna ports in the first antenna port set, 3 of the 4 second reference signal ports are associated with the 3 antenna ports in the second antenna port set, a first reference signal port other than the 3 first reference signal ports in the 4 first reference signal ports is associated with one antenna port in the second antenna port set, and a second reference signal port other than the 3 second reference signal ports in the 4 second reference signal ports is associated with one antenna port in the first antenna port set.

[0154] In one example, as shown in FIG. 5, if the first antenna port set includes antenna ports p0, p1, and p2 of the terminal device, and the second antenna port set includes antenna ports p3, p4, and p5 of the terminal device, port0, port1, and port2 in port0, port1, port2, and port3 included in the SRS resource 1 are associated with the antenna ports p0, p1, and p2 of the terminal device, for example, port0, port1, and port2 are in one-to-one correspondence with the antenna ports p0, p1, and p2 of the terminal device, and port3 included in the SRS resource 1 is associated with / corresponds to any one of the antenna ports p3, p4, and p5 of the terminal device; port4, port5, and port6 in port4, port5, port6, and port7 included in the SRS resource 2 are associated with the antenna ports p3, p4, and p5 of the terminal device, for example, port4, port5, and port6 are in one-to-one correspondence with the antenna ports p3, p4, and p5 of the terminal device, and port7 included in the SRS resource 2 is associated with / corresponds to any one of the antenna ports p0, p1, and p2 of the terminal device.

[0155] Exemplarily, any three SRS ports of port0, port1, port2, port3 included in the SRS resource 1 can be associated with the antenna ports p0, p1, p2 of the terminal device, which is not limited in the application. For the convenience of explaining the technical solution of the application, the port0, port1, port2 of port0, port1, port2, port3 included in the SRS resource 1 are associated with the antenna ports p0, p1, p2 of the terminal device as an example for illustration. Similarly, any three SRS ports of port4, port5, port6, port7 included in the SRS resource 2 can be associated with the antenna ports p3, p4, p5 of the terminal device, which is not limited in the application. For the convenience of explaining the technical solution of the application, the port4, port5, port6 of port4, port5, port6, port7 included in the SRS resource 2 are associated with the antenna ports p3, p4, p5 of the terminal device as an example for illustration.

[0156] Another example, if the first antenna port set includes the antenna ports p0, p1, p5 of the terminal device, the second antenna port set includes the antenna ports p2, p3, p4 of the terminal device, the port0, port1, port2 of port0, port1, port2, port3 included in the SRS resource 1 are associated with the antenna ports p0, p1, p5 of the terminal device, for example, the port0, port1, port2 are one-to-one corresponding to the antenna ports p0, p1, p5 of the terminal device, and the port3 included in the SRS resource 1 is associated / corresponds to any one of the antenna ports p2, p3, p4 of the terminal device; the port4, port5, port6 of port4, port5, port6, port7 included in the SRS resource 2 are associated with the antenna ports p2, p3, p4 of the terminal device, for example, the port4, port5, port6 are one-to-one corresponding to the antenna ports p2, p3, p4 of the terminal device, and the port7 included in the SRS resource 2 is associated / corresponds to any one of the antenna ports p0, p1, p5 of the terminal device.

[0157] Exemplarily, any three SRS ports of port0, port1, port2, port3 included in the SRS resource 1 can be associated with the antenna ports p0, p1, p5 of the terminal device, and the present application does not make any limitation thereon. For the purpose of facilitating the illustration of the technical solution of the present application, the port0, port1, port2 of port0, port1, port2, port3 included in the SRS resource 1 are taken as an example to be associated with the antenna ports p0, p1, p5 of the terminal device. Similarly, any three SRS ports of port4, port5, port6, port7 included in the SRS resource 2 can be associated with the antenna ports p2, p3, p4 of the terminal device, and the present application does not make any limitation thereon. For the purpose of facilitating the illustration of the technical solution of the present application, the port4, port5, port6 of port4, port5, port6, port7 included in the SRS resource 2 are taken as an example to be associated with the antenna ports p2, p3, p4 of the terminal device.

[0158] In order to ensure the channel measurement quality of different SRS ports, the plurality of SRS ports included in each SRS resource are orthogonal. Considering the overhead of the reference signal, the SRS resource currently supported by the NR protocol is orthogonal multiplexed by means of time division multiplexing, frequency division multiplexing and code division multiplexing.

[0159] 1) For time division multiplexing of SRS resources, different SRS ports can be configured to transmit SRS on different time domain resources to achieve time division multiplexing between different SRS ports, for example, the different time domain resources can be different system frames, different time slots, different OFDM symbols, etc. Exemplarily, the network device configures the SRS ports included in the SRS resource 1 to transmit SRS on OFDM1, and the network device configures the SRS ports included in the SRS resource 2 to transmit SRS on OFDM3.

[0160] 2) For frequency division multiplexing of SRS resources, different SRS ports can be configured to transmit SRS on different frequency domain subbands or frequency domain subcarriers to achieve frequency division multiplexing between different SRS ports. Fig. 6 takes occupying different frequency domain subcarriers as an example, the comb is a part of subcarriers extracted at equal intervals in the frequency domain, and the interval of extraction is called the comb degree, denoted as K TC TC ​The comb offset (CO) is a way to distinguish different subcarriers in frequency domain, and different comb offset values represent different subcarrier groups or subcarrier positions in frequency domain. Each SRS resource achieves frequency division multiplexing between different SRS ports by allocating different COs to different SRS ports. For example, when K TC = 4, the subcarriers with CO = 0 are frequency domain resources allocated by SRS resource 1 for port 0, the subcarriers with CO = 1 are frequency domain resources allocated by SRS resource 1 for port 1, the subcarriers with CO = 2 are frequency domain resources allocated by SRS resource 1 for port 2, and the subcarriers with CO = 3 are frequency domain resources allocated by SRS resource 1 for port 3.

[0161] 3) For code division multiplexing of SRS resources, SRS sequences sent by different SRS ports can be sent on the same time domain resource and / or frequency domain resource by configuring different cyclic shifts (CSs) to achieve code division multiplexing between different SRS ports. Specifically, the cyclic shift is applied to the sent SRS sequence, and the CS of the SRS sequence sent by different SRS ports can be determined by the following formula 1 and formula 2:

[0162] wherein α i is the cyclic shift of the SRS sequence sent by the i-th SRS port included in each SRS resource, is a CS value configurable by the network device. For example, if the comb degree K TC = 4, the maximum number of cyclic shifts If the comb degree K TC = 2, the maximum number of cyclic shifts

[0163] It can be seen that α i is a function of and p i , that is, even if the network device configures the cyclic shifts of the SRS sequences sent by different SRS ports included in each SRS resource are different.

[0164] It should be understood that the port 0, the port 1, the port 2 and the port 3 included in the SRS resource 1 can occupy the same time domain symbol OFDM1 to send the SRS, and the port 0, the port 1, the port 2 and the port 3 can be multiplexed by the frequency division multiplexing or the code division multiplexing to ensure that the four SRS ports included in the SRS resource 1 are orthogonal. Similarly, the port 4, the port 5, the port 6 and the port 7 included in the SRS resource 2 can occupy the same time domain symbol OFDM3 to send the SRS, and the port 4, the port 5, the port 6 and the port 7 can be multiplexed by the frequency division multiplexing or the code division multiplexing to ensure that the four SRS ports included in the SRS resource 2 are orthogonal.

[0165] In addition, the SRS resource set configured by the network device for the terminal device includes the SRS resource 1 and the SRS resource 2, the SRS resource 1 occupies the OFDM1, and the SRS resource 2 occupies the OFDM3. The terminal device needs to perform antenna switching when sending the SRS by using different SRS resources, and the OFDM2 is a guard interval for the antenna switching of the terminal device. The terminal device cannot send any signal in the process of performing the antenna switching, and therefore the first configuration information needs to configure a guard interval for the antenna switching of the terminal device when configuring multiple SRS resources for the terminal device. Table 1 below gives the minimum time requirement of the antenna switching under different subcarrier spacings.

[0166] Table 1

[0167] As shown in Table 1 above, the guard interval of the antenna switching is at least 1 OFDM symbol when the subcarrier spacing is 15 kHz, the guard interval of the antenna switching is at least 1 OFDM symbol when the subcarrier spacing is 30 kHz, the guard interval of the antenna switching is at least 1 OFDM symbol when the subcarrier spacing is 60 kHz, and the guard interval of the antenna switching is at least 2 OFDM symbols when the subcarrier spacing is 120 kHz. FIG. 5 is an example of explaining that the guard interval of the antenna switching is 1 OFDM symbol, and the specific guard interval of the antenna switching can be configured by referring to Table 1 above, which is not limited in the present application.

[0168] The SRS resource 1 includes port 0, port 1 and port 2, which are associated with 3 antenna ports in the first antenna port set, and the SRS resource 2 includes port 7, which is associated with one antenna port in the first antenna port set, so that the channel corresponding to the one antenna port in the first antenna port set is measured twice at one SRS port in port 0, port 1 and port 2 included in the SRS resource 1 and port 7 included in the SRS resource 2, thereby generating power stacking; similarly, the SRS resource 2 includes port 4, port 5 and port 6, which are associated with 3 antenna ports in the second antenna port set, and the SRS resource 1 includes port 3, which is associated with one antenna port in the second antenna port set, so that the channel corresponding to the one antenna port in the second antenna port set is measured twice at port 3 included in the SRS resource 1 and one SRS port in port 4, port 5 and port 6 included in the SRS resource 2, thereby generating power stacking, so that the channel corresponding to the two antenna ports of the terminal device is measured twice respectively. Based on this, the network device in the embodiment of the present application can also indicate the terminal device to send SRS by using 4 SRS ports included in each SRS resource, and the measurement power stacking of the channel corresponding to the specific antenna port of the terminal device can be designed to make the channel measurement results of each antenna port of the terminal device more balanced; or the network device can also indicate the terminal device to send SRS by using 3 SRS ports in 4 SRS ports included in each SRS resource, thereby uniformly improving the measurement power of the channel corresponding to each antenna port of the terminal device.

[0169] Specifically, the first configuration information can include a first parameter, and the terminal device can determine to send SRS by using 4 SRS ports included in each SRS resource based on the first parameter, or the terminal device can determine to send SRS by using 3 SRS ports in 4 SRS ports included in each SRS resource based on the first parameter.

[0170] Exemplarily, the network device can first measure the channel corresponding to each antenna port of the terminal device, and determine whether the measurement results of the channels corresponding to each antenna port of the terminal device are balanced. If the network device determines that the measurement results of the channels corresponding to each antenna port of the terminal device are not balanced, the measurement power of the channels corresponding to some antenna ports of the terminal device needs to be stacked, and the first parameter sent by the network device can indicate the terminal device to send SRS using 4 SRS ports included in each SRS resource; if the network device determines that the measurement results of the channels corresponding to each antenna port of the terminal device are balanced, the measurement power of the channels corresponding to each antenna port of the terminal device does not need to be stacked, and the first parameter sent by the network device can indicate the terminal device to send SRS using 3 SRS ports in 4 SRS ports included in each SRS resource.

[0171] Exemplarily, the network device can first measure the channel corresponding to each antenna port of the terminal device, and determine whether the measurement results of the channels corresponding to each antenna port of the terminal device are balanced. If the network device determines that the measurement results of the channels corresponding to each antenna port of the terminal device are not balanced, the measurement power of the channels corresponding to some antenna ports of the terminal device needs to be stacked, and the first parameter sent by the network device can indicate the terminal device to send SRS using 4 SRS ports included in each SRS resource; if the network device determines that the measurement results of the channels corresponding to each antenna port of the terminal device are balanced, the measurement power of the channels corresponding to each antenna port of the terminal device does not need to be stacked, and the first parameter sent by the network device can indicate the terminal device to send SRS using 3 SRS ports in 4 SRS ports included in each SRS resource.

[0172] Specifically, if the first parameter indicates the terminal device to send SRS using 4 SRS ports included in each SRS resource, port3 included in SRS resource 1 can be associated with a first antenna port in the second antenna port set, and the channel measurement result of the SRS port associated with the first antenna port is the worst; port7 included in SRS resource 2 can be associated with a second antenna port in the first antenna port set, and the channel measurement result of the SRS port associated with the second antenna port is the worst.

[0173] In an example, if the first antenna port set includes antenna ports p0, p1, p2 of the terminal device, and the second antenna port set includes antenna ports p3, p4, p5 of the terminal device. Exemplarily, the channel measurement result of the SRS port associated with the antenna port p0 is better than the channel measurement result of the SRS port associated with the antenna port p1, the channel measurement result of the SRS port associated with the antenna port p1 is better than the channel measurement result of the SRS port associated with the antenna port p2, and therefore the above-mentioned second antenna port can be the antenna port p2; exemplarily, the channel measurement result of the SRS port associated with the antenna port p3 is better than the channel measurement result of the SRS port associated with the antenna port p4, and the channel measurement result of the SRS port associated with the antenna port p4 is better than the channel measurement result of the SRS port associated with the antenna port p5, and therefore the above-mentioned first antenna port can be the antenna port p5. In this example, the channel measurement results corresponding to the antenna ports p2 and p5 of the terminal device are poor, and therefore the power of the antenna ports p2 and p5 is stacked, so that the power of each antenna port of the terminal device is more balanced, which is beneficial to improve the channel measurement result.

[0174] Exemplarily, the channel measurement result involved in the embodiments of the present application can be measured by at least one of the following parameters: reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), signal-noise ratio (SNR), signal to interference plus noise ratio (SINR) (or can be simply referred to as signal to noise ratio).

[0175] In another example, if the first antenna port set includes the antenna ports p0, p1, p5 of the terminal device, and the second antenna port set includes the antenna ports p2, p3, p4 of the terminal device. Exemplarily, the channel measurement result of the SRS port associated with the antenna port p0 is better than that of the SRS port associated with the antenna port p1, and the channel measurement result of the SRS port associated with the antenna port p1 is better than that of the SRS port associated with the antenna port p5, so the above-mentioned second antenna port can be the antenna port p5; Exemplarily, the channel measurement result of the SRS port associated with the antenna port p2 is better than that of the SRS port associated with the antenna port p3, and the channel measurement result of the SRS port associated with the antenna port p3 is better than that of the SRS port associated with the antenna port p4, so the above-mentioned first antenna port can be the antenna port p4. In this example, the channel measurement results corresponding to the antenna ports p5 and p4 of the terminal device are different, so the powers of the antenna ports p5 and p4 are stacked, so that the powers of each antenna port of the terminal device are more balanced, which is beneficial to improve the channel measurement result.

[0176] Specifically, if the first parameter indicates that the terminal device transmits SRS using 3 SRS ports in 4 SRS ports included in each SRS resource, 3 SRS ports in 4 SRS ports included in the SRS resource 1 for transmitting SRS are associated with 3 antenna ports in the first antenna port set; 3 SRS ports in 4 SRS ports included in the SRS resource 2 for transmitting SRS are associated with 3 antenna ports in the second antenna port set. As shown in FIG. 7, port0, port1, port2 in the SRS resource 1 are used for transmitting SRS, port3 in the SRS resource 1 is not used for transmitting SRS, the port0, port1, port2 are associated with 3 antenna ports in the first antenna port set; port4, port5, port6 in the SRS resource 2 are used for transmitting SRS, port7 in the SRS resource 2 is not used for transmitting SRS, the port4, port5, port6 are associated with 3 antenna ports in the second antenna port set.

[0177] Exemplarily, the first parameter described above can be the above-mentioned When , the terminal device determines to use 4 SRS ports corresponding to each SRS resource to transmit the reference signal; when , the terminal device determines to use 3 SRS ports in 4 SRS ports corresponding to each SRS resource to transmit the reference signal. This indication method can not increase additional signaling and save signaling overhead.

[0178] The CS values of the SRS sequences sent by the 4 SRS ports included in each SRS resource obtained through the above formula 1 and the above formula 2 are uniform, for example, the CS of the SRS sequence sent by port0 included in SRS resource 1 is 0, the CS of the SRS sequence sent by port1 is 2, the CS of the SRS sequence sent by port2 is 4, and the CS of the SRS sequence sent by port3 is 6, at this time, the difference between the CS of the SRS sequence sent by port0 and the CS of the SRS sequence sent by port1 is 2, the difference between the CS of the SRS sequence sent by port1 and the CS of the SRS sequence sent by port2 is 2, the difference between the CS of the SRS sequence sent by port2 and the CS of the SRS sequence sent by port3 is 2, and the difference between the CS of the SRS sequence sent by port3 and the CS of the SRS sequence sent by port0 is 2, and the CS values of the SRS sequences sent by the SRS ports are uniform. The SRS resource set configured by the network device for the terminal device is a periodic resource, when the network device indicates the terminal device to send reference signals using 3 SRS ports included in the 4 SRS ports of each SRS resource through the first parameter, the terminal device will use the fixed 3 SRS ports included in the 4 SRS ports of SRS resource 1 and SRS resource 2 to send SRS in each period, for example, the terminal device will use port0, port1, and port2 included in the 4 SRS ports of SRS resource 1 and port4, port5, and port6 included in the 4 SRS ports of SRS resource 2 to send SRS in each period, at this time, the difference between the CS of the SRS sequence sent by port0 included in SRS resource 1 and the CS of the SRS sequence sent by port1 is 2, the difference between the CS of the SRS sequence sent by port1 and the CS of the SRS sequence sent by port2 is 2, and the difference between the CS of the SRS sequence sent by port2 and the CS of the SRS sequence sent by port0 is 4, and the CS values of the SRS sequences sent by the SRS ports are non-uniform, thereby causing the problem of non-uniform channel measurement results of the SRS ports. Similarly, at this time, the difference between the CS of the SRS sequence sent by port4 included in SRS resource 2 and the CS of the SRS sequence sent by port5 is 2, the difference between the CS of the SRS sequence sent by port5 and the CS of the SRS sequence sent by port6 is 2, and the difference between the CS of the SRS sequence sent by port6 and the CS of the SRS sequence sent by port4 is 4, and the CS values of the SRS sequences sent by the SRS ports are non-uniform, thereby causing the problem of non-uniform channel measurement results of the SRS ports.The SRS resource 1 and the SRS resource 2 correspond to one transmission occasion in each period, based on which the network device in the embodiment of the present application can configure the 3 SRS ports for transmitting the reference signal in each reference signal resource to correspond to different 3 SRS ports in different transmission opportunities, thereby improving the randomization effect and facilitating improvement of the accuracy of channel measurement.

[0179] Exemplarily, as shown in FIG. 8, in the first period or the first transmission opportunity, the port 0, the port 1 and the port 2 of the 4 SRS ports included in the SRS resource 1 transmit the reference signal, and the port 3 in the SRS resource 1 does not transmit the SRS, at this time, the difference between the CS of the reference signal transmitted by the port 0 and the CS of the reference signal transmitted by the port 2 is large, therefore, the channel measurement result of the port 0 and the port 2 is better than the channel measurement result of the port 1; in the second period or the second transmission opportunity, the port 1, the port 2 and the port 3 of the 4 SRS ports included in the SRS resource 1 transmit the reference signal, and the port 0 in the SRS resource 1 does not transmit the SRS, at this time, the difference between the CS of the reference signal transmitted by the port 1 and the CS of the reference signal transmitted by the port 3 is large, therefore, the channel measurement result of the port 1 and the port 3 is better than the channel measurement result of the port 2; in the third period or the third transmission opportunity, the port 0, the port 2 and the port 3 of the 4 SRS ports included in the SRS resource 1 transmit the reference signal, and the port 1 in the SRS resource 1 does not transmit the SRS, at this time, the difference between the CS of the reference signal transmitted by the port 0 and the CS of the reference signal transmitted by the port 2 is large, therefore, the channel measurement result of the port 0 and the port 2 is better than the channel measurement result of the port 3; in the fourth period or the fourth transmission opportunity, the port 0, the port 1 and the port 3 of the 4 SRS ports included in the SRS resource 1 transmit the reference signal, and the port 2 in the SRS resource 1 does not transmit the SRS, at this time, the difference between the CS of the reference signal transmitted by the port 1 and the CS of the reference signal transmitted by the port 3 is large, therefore, the channel measurement result of the port 1 and the port 3 is better than the channel measurement result of the port 0. The SRS resource 2 can also correspond to different 3 SRS ports in different periods or different transmission opportunities, which can be referred to the description of the SRS resource 1 corresponding to different 3 SRS ports in different periods or different transmission opportunities, and will not be described herein again.

[0180] Specifically, in each period or each transmission opportunity shown in FIG. 8, the 3 SRS ports included in the SRS resource 1 for transmitting the reference signal are associated with the 3 antenna ports in the first antenna port set, and the 3 SRS ports included in the SRS resource 2 for transmitting the reference signal are associated with the 3 antenna ports in the second antenna port set.

[0181] For example, FIG. 8 is an example in which each SRS resource corresponds to different 3 SRS ports in four consecutive periods or four consecutive transmission occasions. Each SRS resource of the present application can also correspond to different 3 SRS ports in different non-consecutive transmission occasions, which is not limited in the present application.

[0182] S412, the terminal device transmits the reference signal based on the first configuration information. Correspondingly, the network device receives the reference signal based on the first configuration information.

[0183] In one example, if the terminal device determines to use 4 SRS ports included in each SRS resource to transmit SRS based on the first parameter, the terminal device uses port0, port1, port2 and port3 included in SRS resource 1 to transmit SRS; and the terminal device uses port4, port5, port6 and port7 included in SRS resource 2 to transmit SRS.

[0184] In another example, if the terminal device determines to use 3 SRS ports of 4 SRS ports included in each SRS resource to transmit SRS based on the first parameter, the terminal device uses 3 SRS ports of 4 SRS ports included in SRS resource 1 to transmit SRS, and the 3 SRS ports used to transmit SRS are associated with 3 antenna ports in the first antenna port set; and the terminal device uses 3 SRS ports of 4 SRS ports included in SRS resource 2 to transmit SRS, and the 3 SRS ports used to transmit SRS are associated with 3 antenna ports in the second antenna port set.

[0185] In another example, if the terminal device determines to use 3 SRS ports of 4 SRS ports included in each SRS resource to transmit SRS based on the first parameter, the terminal device uses different 3 SRS ports in different transmission occasions to transmit SRS, for example, the terminal device uses different 3 SRS ports of port0, port1, port2 and port3 in different transmission occasions to transmit SRS, and the terminal device uses different 3 SRS ports of port4, port5, port6 and port7 in different transmission occasions to transmit SRS.

[0186] S414, the network device performs channel measurement based on the received reference signal, and obtains a channel measurement result.

[0187] In an example, if the terminal device determines to send SRS using 4 SRS ports included in each SRS resource based on the first parameter, the network device can combine the results of two channel measurements corresponding to two antenna port pairs of the terminal device. For example, port 0, port 1 and port 2 included in SRS resource 1 are associated with 3 antenna ports in the first antenna port set, port 7 included in SRS resource 2 is associated with a second antenna port in the first antenna port set, the SRS port associated with the second antenna port in SRS resource 1 is port 0, and the SRS port associated with the second antenna port in SRS resource 2 is port 7. The network device can combine the measurement results of port 0 and port 7 to obtain the channel measurement result corresponding to the second antenna port. Port 4, port 5 and port 6 included in SRS resource 2 are associated with 3 antenna ports in the second antenna port set, and port 3 included in SRS resource 1 is associated with a first antenna port in the second antenna port set. The SRS port associated with the first antenna port in SRS resource 1 is port 3, and the SRS port associated with the first antenna port in SRS resource 2 is port 4. The network device can combine the measurement results of port 3 and port 4 to obtain the channel measurement result corresponding to the first antenna port. The measurement results of the channels corresponding to other antenna ports of the terminal device can be obtained based on the SRS sent by the associated SRS port, which is not described herein.

[0188] Specifically, the network device can schedule uplink data of the terminal device based on the obtained channel measurement result or send downlink data based on the obtained channel measurement result.

[0189] Through the communication method 400 of the embodiment of the present application, the terminal device can send SRS on different antenna ports in turn, and the time for reporting channel information can be shorter, so that the efficiency of channel measurement can be improved.

[0190] It can be understood that some optional features in the embodiments of the present application can not depend on other features in some scenarios, or can be combined with other features in some scenarios, without limitation.

[0191] It can also be understood that the various optional schemes in the embodiments of the present application can be reasonably combined, and the explanations or descriptions of various terms appearing in the text can be mutually referenced or explained, without limitation.

[0192] It can also be understood that the methods and operations implemented by the devices (such as terminal devices and network devices) in the above method embodiments can also be implemented by components (such as chips or circuits) of the devices, without limitation.

[0193] The above describes the method provided by the embodiments of the present application in detail in combination with FIG. 3 to FIG. 8. The following describes the apparatus provided by the embodiments of the present application in combination with FIG. 9 to FIG. 11. It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments, and therefore, the content not described in detail can be referred to the foregoing method embodiments, which will not be described here for brevity.

[0194] Referring to FIG. 9, FIG. 9 is a schematic diagram of a communication apparatus 900 provided by an embodiment of the present application. The apparatus 900 includes a transceiver unit 910. The transceiver unit 910 can be configured to implement corresponding communication functions. The transceiver unit 910 can also be referred to as a communication interface or a communication unit.

[0195] Optionally, the transceiver unit 910 can include a receiving unit and a sending unit. The receiving unit can be configured to perform operations related to receiving (such as operations of receiving data or messages), and the sending unit can be configured to perform operations related to sending (such as operations of sending data or messages).

[0196] Optionally, the apparatus 900 further includes a processing unit 920. The processing unit 920 can be configured to perform information processing. The function of the processing unit 920 can be implemented by one or more processors. Specifically, the processor can include a modem chip, or a system on chip (SoC) chip or a SIP chip including a modem core.

[0197] Optionally, the apparatus 900 can further include a storage unit, which can be configured to store instructions and / or data. The processing unit 920 can read the instructions and / or data in the storage unit, so that the apparatus implements the foregoing method embodiments.

[0198] In one design, the apparatus 900 can be a terminal device in the foregoing embodiments, or a component (such as a chip) of the terminal device. The apparatus 900 can implement steps or processes corresponding to operations performed by the terminal device in the foregoing method embodiments. Specifically, the transceiver unit 910 can be configured to perform operations related to receiving and sending of the terminal device in the foregoing method embodiments, and the processing unit 920 can be configured to perform operations related to processing of the terminal device in the foregoing method embodiments.

[0199] In one possible implementation, the transceiver unit 910 is configured to receive first configuration information, and is further configured to send a reference signal based on the first configuration information.

[0200] The apparatus 900 can implement steps or processes corresponding to operations performed by the terminal device in the method embodiments according to the embodiments of the present application. The apparatus 900 can include units for performing the method performed by the terminal device in the embodiments shown in FIG. 4.

[0201] In another design, the apparatus 900 can be a network device in the foregoing embodiments, or a component (e.g., a chip) of the network device. The apparatus 900 can implement the steps or procedures performed by the network device in the method embodiments. The transceiver unit 910 can be configured to perform the transceiving-related operations of the network device in the method embodiments, and the processing unit 920 can be configured to perform the processing-related operations of the network device in the method embodiments.

[0202] In one possible implementation, the transceiver unit 910 is configured to transmit the first configuration information, and receive the reference signal based on the first configuration information.

[0203] In another possible implementation, the processing unit 920 is configured to perform channel measurement based on the received reference signal, and obtain a channel measurement result.

[0204] The apparatus 900 can implement the steps or procedures performed by the network device in the method embodiments according to the embodiments of the present application. The apparatus 900 can include units configured to perform the methods of the network device in the embodiments shown in FIG. 4.

[0205] It should be understood that the specific process in which each unit performs the corresponding steps has been described in detail in the foregoing method embodiments, and thus will not be described here for brevity.

[0206] It should also be understood that the apparatus 900 here is in the form of functional units. The term “unit” here can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (e.g., a shared processor, a dedicated processor, or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combination of logic circuitry and / or other suitable components that provide the described functionality. In one optional example, those skilled in the art can understand that the apparatus 900 can be specifically a communication device in the foregoing embodiments, and can be configured to perform the procedures and / or steps corresponding to the communication device in the foregoing method embodiments. For brevity, these will not be described here again.

[0207] The apparatus 900 in each of the above solutions has the function of implementing the corresponding steps performed by the communication device in the foregoing methods. The function can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (e.g., the transmitting unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor, which respectively performs the transceiving operations and related processing operations in the method embodiments.

[0208] Further, the transceiver unit 910 can also be a transceiver circuit (e.g., can include a receiving circuit and a transmitting circuit), and the processing unit can be a processing circuit.

[0209] It should be noted that the apparatus in FIG. 9 can be a communication device in the foregoing embodiments, or can be a chip or a chip system, for example, a modem chip or a system on chip (SoC) chip or a SIP chip containing a modem core. The transceiver unit can be an input / output circuit, a communication interface; and the processing unit can be a processor or a microprocessor or an integrated circuit integrated on the chip. Herein, no limitation is made.

[0210] Referring to FIG. 10, FIG. 10 is a schematic diagram of another communication apparatus 1000 provided in an embodiment of the present application. The apparatus 1000 includes a processor 1010, and the processor 1010 is coupled to a memory 1020. The memory 1020 is configured to store computer programs or instructions and / or data, and the processor 1010 is configured to execute the computer programs or instructions stored in the memory 1020, or read the data stored in the memory 1020, to perform the methods in the method embodiments.

[0211] Optionally, the processor 1010 is one or more.

[0212] Optionally, the memory 1020 is one or more.

[0213] Optionally, the memory 1020 is integrated with the processor 1010, or is separately arranged.

[0214] Optionally, as shown in FIG. 10, the apparatus 1000 further includes a transceiver 1030, and the transceiver 1030 is configured to receive and / or send signals. For example, the processor 1010 is configured to control the transceiver 1030 to receive and / or send signals. Exemplarily, the transceiver 1030 can include a transmitter and / or a receiver, the transmitter is configured to perform a sending operation, and the receiver is configured to perform a receiving operation.

[0215] For example, the processor 1010 can have the functions of the processing unit 920 shown in FIG. 9, the memory 1020 can have the functions of a storage unit, and the transceiver 1030 can have the functions of the transceiver unit 910 shown in FIG. 9.

[0216] As an example, the apparatus 1000 is configured to implement the operations performed by the communication apparatus in the method embodiments.

[0217] For example, the processor 1010 is configured to execute the computer programs or instructions stored in the memory 1020, to implement the related operations of the terminal device or the network device in the method embodiments.

[0218] It should be appreciated that a processor as mentioned in this application can be any known or future developed processor, and more particularly, any custom made or commercially available processor series (or any other processor orders) from any manufacturer.

[0219] It should also be appreciated that a memory as mentioned in this application can be any known or future developed memory, and more particularly, a memory unit (or simply memory) that includes but is not limited to the following: a volatile memory unit and / or a non-volatile memory unit that includes but is not limited to the following: a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically EPROM (EEPROM), a flash memory, or any other suitable memory component or a combination thereof. The volatile memory can also include, but is not limited to, a random access memory (RAM), such as a static RAM (SRAM), a dynamic RAM (DRAM), a synchronous DRAM (SDRAM), a double data rate SDRAM (DDR SDRAM), an enhanced SDRAM (ESDRAM), a synchlink DRAM (SLDRAM), a RAM- based double-data-rate memory device (RDDRAM) and / or a direct rambus RAM (DR RAM). The non-volatile memory can also include, but is not limited to, a hard disk drive, a tape drive, a zip drive, a flash memory, and / or a compact disk drive, among others.

[0220] It should be noted that when the processor is a general processor, a DSP, an ASIC, a FPGA or other programmable logic device, a discrete gate or transistor logic, a discrete hardware component, the memory (storage module) can be integrated in the processor.

[0221] It should also be noted that the memory described herein is intended to include, but is not limited to, the following: a memory, a memory unit, a storage device, a storage unit, a storage location, a database, a table, a cache, a queue, a stack, a heap, look-up table, or any suitable combination of the foregoing.

[0222] Referring to FIG. 11, FIG. 11 is a schematic diagram of a chip system 1100 according to an embodiment of the present application. The chip system 1100 (or also referred to as a processing system) includes a logic circuit 1110 and an input / output interface 1120.

[0223] The logic circuit 1110 can be a processing circuit in the chip system 1100. The logic circuit 1110 can be coupled to a storage unit, and invoke instructions in the storage unit, so that the chip system 1100 can implement the methods and functions of the embodiments of the present application. The input / output interface 1120 can be an input / output circuit in the chip system 1100, and output information processed by the chip system 1100, or input data or signaling information to be processed by the chip system 1100.

[0224] Optionally, the logic circuit 1110 can be implemented by one or more processors, including the one or more processors or processing portions in the one or more processors.

[0225] Optionally, the input / output interface 1120 can include a transceiver circuit, a transceiver, an input / output circuit or a communication interface.

[0226] As an option, the chip system 1100 is configured to implement operations performed by a communication apparatus (e.g., a terminal device, or a network device) in the methods described above.

[0227] For example, the logic circuit 1110 is configured to implement processing-related operations performed by a communication apparatus (e.g., a terminal device, or a network device) in the methods described above; the input / output interface 1120 is configured to implement sending and / or receiving-related operations performed by a communication apparatus (e.g., a terminal device, or a network device) in the methods described above, an input interface is configured to perform receiving operations, and an output interface is configured to perform sending operations.

[0228] The embodiments of the present application also provide a computer readable storage medium having stored thereon computer instructions for implementing the methods performed by a communication apparatus (e.g., a terminal device, or a network device) in the methods described above.

[0229] For example, the computer program, when executed by a computer, enables the computer to implement the methods performed by a communication apparatus (e.g., a terminal device, or a network device) in the methods described above.

[0230] The embodiments of the present application also provide a computer program product containing instructions, which, when executed by a computer, implement the methods performed by a communication apparatus (e.g., a terminal device, or a network device) in the methods described above.

[0231] The embodiments of the present application also provide a communication system, which comprises the terminal device and / or the network device in the above embodiments. For example, the system comprises the terminal device and the network device in FIG. 4.

[0232] The explanations and beneficial effects of the related contents in any of the above provided devices can refer to the corresponding method embodiments provided above, which will not be repeated here.

[0233] In several embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented by other means. For example, the apparatus embodiments described above are only schematic, and the division of the units is only a logical function division. In actual implementation, another division mode can be used, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0234] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented 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, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable apparatus. For example, the computer can be a personal computer, a server, a network device, etc. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transferred from one website, computer, server or data center 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.) manner. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media sets. The available media can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD), etc. For example, the foregoing available media includes but is not limited to: a variety of media that can store program codes such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0235] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method comprises: receiving first configuration information, the first configuration information being used to indicate a plurality of reference signal resources, the plurality of reference signal resources being associated with all antenna ports of a terminal device, each of the plurality of reference signal resources being associated with X antenna ports of the terminal device, X being greater than 2; transmitting a reference signal based on the first configuration information.

2. The method of claim 1, wherein, The number of all antenna ports of the terminal device is equal to 6, and X is equal to 4.

3. The method of claim 2, wherein, Each of the plurality of reference signal resources being associated with X antenna ports of the terminal device comprises that each of the plurality of reference signal resources comprises X reference signal ports, the X reference signal ports being associated with the X antenna ports of the terminal device. All antenna ports of the terminal device are divided into a first antenna port set and a second antenna port set, the first antenna port set comprising 3 antenna ports of the terminal device, and the second antenna port set comprising another 3 antenna ports of the terminal device. The plurality of reference signal resources comprises a first reference signal resource and a second reference signal resource, the first reference signal resource comprising 4 first reference signal ports, the second reference signal resource comprising 4 second reference signal ports, 3 first reference signal ports of the 4 first reference signal ports being associated with 3 antenna ports in the first antenna port set, 3 second reference signal ports of the 4 second reference signal ports being associated with 3 antenna ports in the second antenna port set, a first reference signal port other than the 3 first reference signal ports in the 4 first reference signal ports being associated with one antenna port in the second antenna port set, and a second reference signal port other than the 3 second reference signal ports in the 4 second reference signal ports being associated with one antenna port in the first antenna port set.

4. The method of claim 3, wherein, The first configuration information comprises a first parameter, and the method further comprises: determining, based on the first parameter, that the reference signal is transmitted using 4 reference signal ports included in each reference signal resource.

5. The method of claim 4, wherein the first reference signal port other than the 3 first reference signal ports in the 4 first reference signal ports being associated with one antenna port in the second antenna port set comprises that the first reference signal port other than the 3 first reference signal ports in the 4 first reference signal ports is associated with a first antenna port in the second antenna port set, and a reference signal port associated with the first antenna port has the worst channel measurement result; and / or the second reference signal port other than the 3 second reference signal ports in the 4 second reference signal ports being associated with one antenna port in the first antenna port set comprises that the second reference signal port other than the 3 second reference signal ports in the 4 second reference signal ports is associated with a second antenna port in the first antenna port set, and a reference signal port associated with the second antenna port has the worst channel measurement result. ​ 6. The method of claim 3, wherein, The first configuration information comprises a first parameter, and the method further comprises: determining, based on the first parameter, that the reference signals are transmitted using 3 reference signal ports of 4 reference signal ports comprised in each reference signal resource.

7. The method of claim 6, wherein, The 3 reference signal ports of 4 reference signal ports comprised in the first reference signal resource are the 3 first reference signal ports, and the 3 reference signal ports of 4 reference signal ports comprised in the second reference signal resource are the 3 second reference signal ports.

8. The method according to claim 6 or 7, characterized in that, The first reference signal resource and the second reference signal resource correspond to one transmission occasion in each period, and the method further comprises: transmitting the reference signals using different 3 first reference signal ports in different transmission occasions; and / or, transmitting the reference signals using different 3 second reference signal ports in different transmission occasions.

9. A communication method characterized by comprising: comprises: transmitting first configuration information, the first configuration information being used to indicate a plurality of reference signal resources, the plurality of reference signal resources being associated with all antenna ports of a terminal device, each reference signal resource of the plurality of reference signal resources being associated with X antenna ports of the terminal device, X being greater than 2; receiving reference signals based on the first configuration information.

10. The method of claim 9, wherein, The number of all antenna ports of the terminal device is equal to 6, and X is equal to 4.

11. The method of claim 10, wherein, The association of each reference signal resource of the plurality of reference signal resources with X antenna ports of the terminal device comprises that each reference signal resource of the plurality of reference signal resources comprises X reference signal ports, and the X reference signal ports are associated with the X antenna ports of the terminal device. All antenna ports of the terminal device are divided into a first antenna port set and a second antenna port set, the first antenna port set comprises 3 antenna ports of the terminal device, and the second antenna port set comprises another 3 antenna ports of the terminal device. The plurality of reference signal resources comprises a first reference signal resource and a second reference signal resource, the first reference signal resource comprises 4 first reference signal ports, the second reference signal resource comprises 4 second reference signal ports, 3 first reference signal ports of the 4 first reference signal ports are associated with 3 antenna ports in the first antenna port set, 3 second reference signal ports of the 4 second reference signal ports are associated with 3 antenna ports in the second antenna port set, a first reference signal port other than the 3 first reference signal ports in the 4 first reference signal ports is associated with one antenna port in the second antenna port set, and a second reference signal port other than the 3 second reference signal ports in the 4 second reference signal ports is associated with one antenna port in the first antenna port set.

12. The method of claim 11, wherein, The first configuration information comprises a first parameter, and the first parameter is used by the terminal device to determine that the reference signals are transmitted using 4 reference signal ports comprised in each reference signal resource.

13. The method of claim 12, wherein, The first reference signal port other than the three first reference signal ports in the four first reference signal ports is associated with one of the second antenna port set, including that the first reference signal port other than the three first reference signal ports in the four first reference signal ports is associated with a first antenna port in the second antenna port set, and the channel measurement result of the reference signal port associated with the first antenna port is the worst. And / or, The second reference signal port other than the three second reference signal ports in the four second reference signal ports corresponds to one of the first antenna port set, including that the second reference signal port other than the three second reference signal ports in the four second reference signal ports is associated with a second antenna port in the first antenna port set, and the channel measurement result of the reference signal port associated with the second antenna port is the worst.

14. The method of claim 10, wherein, The first configuration information includes a first parameter, and the first parameter is used by the terminal device to determine that 3 reference signal ports in 4 reference signal ports included in each reference signal resource are used to transmit the reference signal.

15. The method of claim 14, wherein, The three reference signal ports in the four reference signal ports included in the first reference signal resource are the three first reference signal ports, and the three reference signal ports in the four reference signal ports included in the second reference signal resource are the three second reference signal ports.

16. The method of claim 15, wherein, The first reference signal resource and the second reference signal resource correspond to one transmission opportunity in each period, the three first reference signal ports correspond to different three first reference signal ports in different transmission opportunities, and / or the three second reference signal ports correspond to different three second reference signal ports in different transmission opportunities.

17. A communications device, characterized by The module or unit for performing the method of any one of claims 1-8.

18. A communications device, characterized by The module or unit for performing the method of any one of claims 9-16.

19. A communication system, characterized by The communication device of claim 17 and / or the communication device of claim 18.

20. A communications device, characterized by The apparatus includes at least one processor configured to execute computer programs or instructions to cause the apparatus to perform the method of any one of claims 1-16.

21. The apparatus of claim 20, wherein The apparatus further includes a memory for storing the computer programs or instructions; and / or The apparatus further includes a communication interface coupled to the at least one processor, the communication interface being configured to input and / or output information.

22. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer programs or instructions, when the computer programs or instructions are run by a processor, causing the method of any one of claims 1-16 to be implemented.

23. A computer program product, characterised in that, The computer program product includes computer programs or instructions for performing the method of any one of claims 1-16. The computer program product includes computer programs or instructions for performing the method of any one of claims 1-16.

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