CN115913499A

CN115913499A - Reference signal sending method and device

Info

Publication number: CN115913499A
Application number: CN202111166050.3A
Authority: CN
Inventors: 刘晓晴; 余政; 张永平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2023-04-04
Also published as: WO2023051250A1

Abstract

The application provides a method and a device for sending reference signals, which are used for solving the problem of how to send different reference signals by UE when sending time slots of different reference signals are overlapped. In the method, a terminal device acquires configuration information and determines to transmit a first reference signal in a first time period according to the configuration information. The configuration information configures a first set of reference signal resources and a second set of reference signal resources. The first set of reference signal resources includes first reference signal resources and the second set of reference signal resources includes second reference signal resources. The first reference signal resource corresponds to a first time period and the second reference signal resource corresponds to a second time period. Wherein the first time period and the second time period overlap. Based on the above scheme, when a first time period corresponding to the first reference signal resource overlaps with a time period corresponding to the second reference signal resource, the terminal may determine whether to transmit the first reference signal in the first time period or to transmit the second reference signal in the second time period according to the configuration information.

Description

Reference signal sending method and device

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for sending a reference signal.

Background

In New Radio (NR) systems, reference Signals (RS) support aperiodic triggering. The base station may define a slot level offset for each set of RS resources. The base station may trigger the configured one or more RS resource sets through Downlink Control Information (DCI).

The transmission slot of the RS is the t +1 available slot after the reference slot. And the reference time slot is the sum of the time slot level offset configured by the base station and the time slot in which the DCI is positioned. t is indicated by DCI. The transmission times for transmitting the RSs may overlap for different RSs.

However, when the transmission times of different RSs overlap, how a User Equipment (UE) transmits an RS becomes an urgent problem to be solved.

Disclosure of Invention

The application provides a method for sending reference signals, which is used for solving the problem of how to send the reference signals by UE when the sending time of different reference signals is overlapped.

In a first aspect, a method for transmitting a reference signal is provided. The method may be performed by a terminal device. The terminal device may be a terminal device, or may also be a device for a terminal device, such as a chip. In the method, a terminal device acquires configuration information and determines to transmit a first reference signal in a first time period according to the configuration information. Wherein the configuration information configures a first set of reference signal resources and a second set of reference signal resources. The first set of reference signal resources includes at least first reference signal resources and the second set of reference signal resources includes at least second reference signal resources. The first reference signal resource corresponds to a first time period and the second reference signal resource corresponds to a second time period. The first time period is used for transmitting a first reference signal, and the second time period is used for transmitting a second reference signal. Wherein the first time period and the second time period overlap.

Based on the above scheme, when a first time period corresponding to the first reference signal resource overlaps with a time period corresponding to the second reference signal resource, the terminal may determine whether to transmit the first reference signal in the first time period or to transmit the second reference signal in the second time period according to the configuration information.

In one possible implementation manner of the first aspect, the terminal device acquires the first information. The first information herein is used to determine that the first reference signal resource corresponds to a first time period and is used to determine that the second reference signal resource corresponds to a second time period. Alternatively, the terminal device acquires the first information and the second information. The first information is used to determine that the first reference signal resource corresponds to a first time period, and the second information is used to determine that the second reference signal resource corresponds to a second time period.

In one possible implementation manner of the first aspect, any one or more of the following is satisfied, and the first reference signal is transmitted in the first time period: the number of time units occupied by the first reference signal is greater than the number of time units occupied by the second reference signal. Alternatively, the starting position of the time unit occupied by the first reference signal is before the starting position of the time unit occupied by the second reference signal. Alternatively, the repetition factor of the first reference signal is smaller than the repetition factor of the second reference signal. Or the frequency hopping times of the first reference signal are smaller than the frequency hopping times of the second reference signal. Or, the first reference signal performs partial frequency monitoring, and the second reference signal does not perform partial frequency monitoring.

Based on the above scheme, the terminal may determine whether to transmit the first reference signal in the first time period or the second reference signal in the second time period according to the configuration information of the first reference signal resource and the configuration information of the second reference signal resource.

In one possible implementation manner of the first aspect, any one or more of the following is satisfied, and the first reference signal is transmitted in the first time period: the number of reference signal resources contained in the first reference signal resource set is greater than the number of reference signal resources contained in the second reference signal resource set. Or the total number of time units occupied by the reference signal resources contained in the first reference signal resource set is greater than the total number of time units occupied by the reference signal resources contained in the second reference signal resource set. Alternatively, a maximum value of the repetition factors of the reference signal resources contained in the first set of reference signal resources is smaller than a maximum value of the repetition factors of the reference signal resources contained in the second set of reference signal resources.

Based on the above scheme, the terminal may determine whether to transmit the first reference signal in the first time period or the second reference signal in the second time period according to the configuration information of the first reference signal resource set and the configuration information of the second reference signal resource set.

In one possible implementation manner of the first aspect, the terminal device does not transmit the second reference signal in the second time period. Alternatively, the terminal device does not transmit the second reference signal over at least one time unit in which the second time period overlaps with the first time period.

Based on the above scheme, when the first time period and the second time period overlap, the terminal may transmit the first reference signal in the first time period and discard the second reference signal.

In one possible implementation manner of the first aspect, the terminal device transmits the second reference signal in a third time period, and the third time period is located after the second time period in the time domain.

Based on the above scheme, when the first time period and the second time period overlap, the terminal transmits the first reference signal in the first time period and transmits the second reference signal in the third time period, and the second reference signal can be transmitted with the least time delay, so as to reduce the loss of the channel measurement information.

In one possible implementation of the first aspect, the second set of reference signal resources is used to configure one or more reference signals. Where the one or more reference signals include a second reference signal. Wherein the second set of reference signal resources corresponds to a fourth time period, the fourth time period comprising the second time period. The terminal device does not transmit the one or more reference signals of the second reference signal resource set configuration over the fourth time period.

Based on the scheme, when the first time period and the second time period overlap, the terminal sends the first reference signal in the first time period, and discards the second reference signal resource set where the second reference signal is located, so that the power consumption of the terminal is reduced.

In one possible implementation of the first aspect, the terminal device transmits the one or more reference signals of the second reference signal resource set configuration over a fifth time period, the fifth time period being located after the fourth time period in the time domain.

Based on the above scheme, when the first time period and the second time period overlap, the terminal may transmit the first reference signal in the first time period, and delay transmission of one or more reference signals in the second reference signal resource set where the second reference signal is located, so as to ensure integrity of the channel measurement information.

In a second aspect, a method for transmitting a reference signal is provided. The method may be executed by the network device, or may be executed by an apparatus for the network device, such as a chip. In the method, a network device sends configuration information and determines to receive a first reference signal in a first time period according to the configuration information. Wherein the configuration information configures a first set of reference signal resources and a second set of reference signal resources. The first set of reference signal resources includes at least first reference signal resources and the second set of reference signal resources includes at least second reference signal resources. The first reference signal resource corresponds to a first time period, and the second reference signal resource corresponds to a second time period. The first time period is used for transmitting a first reference signal, and the second time period is used for transmitting a second reference signal. Wherein the first time period and the second time period overlap.

In one possible implementation manner of the second aspect, the network device sends the first information. The first information herein is used to determine that the first reference signal resource corresponds to a first time period and is used to determine that the second reference signal resource corresponds to a second time period. Alternatively, the network device transmits the first information and the second information. The first information is used to determine that the first reference signal resource corresponds to a first time period, and the second information is used to determine that the second reference signal resource corresponds to a second time period.

In one possible implementation manner of the second aspect, any one or more of the following is satisfied, and the first reference signal is received in the first time period: the number of time units occupied by the first reference signal is greater than the number of time units occupied by the second reference signal. Alternatively, the starting position of the time unit occupied by the first reference signal is before the starting position of the time unit occupied by the second reference signal. Alternatively, the repetition factor of the first reference signal is smaller than the repetition factor of the second reference signal. Or the frequency hopping times of the first reference signal are smaller than the frequency hopping times of the second reference signal. Or, the first reference signal performs partial frequency monitoring, and the second reference signal does not perform partial frequency monitoring.

In one possible implementation of the second aspect, any one or more of the following is satisfied, and the first reference signal is received for the first time period: the number of reference signal resources contained in the first reference signal resource set is greater than the number of reference signal resources contained in the second reference signal resource set. Or the total number of time units occupied by the reference signal resources contained in the first reference signal resource set is greater than the total number of time units occupied by the reference signal resources contained in the second reference signal resource set. Alternatively, a maximum value of the repetition factors of the reference signal resources contained in the first set of reference signal resources is smaller than a maximum value of the repetition factors of the reference signal resources contained in the second set of reference signal resources.

In one possible implementation manner of the second aspect, the network device does not receive the second reference signal in the second time period. Alternatively, the network device does not receive the second reference signal over at least one time unit in which the second time period overlaps with the first time period.

In one possible implementation manner of the second aspect, the network device receives the second reference signal at a third time period, and the third time period is located after the second time period in the time domain.

In one possible implementation of the second aspect, the second set of reference signal resources is used to configure one or more reference signals. Where the one or more reference signals include a second reference signal. Wherein the second set of reference signal resources corresponds to a fourth time period, the fourth time period comprising the second time period. The network device does not receive the one or more reference signals over the fourth time period.

In one possible implementation of the second aspect, the network device receives the one or more reference signals over a fifth time period, the fifth time period being located after the fourth time period in the time domain.

In a third aspect, a communication device is provided that includes a processing unit and a transceiver unit.

And the transceiving unit is used for acquiring the configuration information. And the processing unit is used for determining to transmit the first reference signal in the first time period according to the configuration information. Wherein the configuration information configures a first set of reference signal resources and a second set of reference signal resources. The first set of reference signal resources includes at least first reference signal resources and the second set of reference signal resources includes at least second reference signal resources. The first reference signal resource corresponds to a first time period and the second reference signal resource corresponds to a second time period. The first time period is used for transmitting a first reference signal, and the second time period is used for transmitting a second reference signal. Wherein the first time period and the second time period overlap.

In a possible implementation manner of the third aspect, the transceiver unit is further configured to acquire the first information. The first information herein is used to determine that the first reference signal resource corresponds to a first time period and is used to determine that the second reference signal resource corresponds to a second time period. Or, the transceiver unit is further configured to acquire the first information and the second information. The first information is used to determine that the first reference signal resource corresponds to a first time period, and the second information is used to determine that the second reference signal resource corresponds to a second time period.

In a possible implementation manner of the third aspect, the processing unit is further configured to determine that any one or more of the following is satisfied, and to transmit the first reference signal in the first time period: the number of time units occupied by the first reference signal is greater than the number of time units occupied by the second reference signal. Alternatively, the starting position of the time unit occupied by the first reference signal is before the starting position of the time unit occupied by the second reference signal. Alternatively, the repetition factor of the first reference signal is smaller than the repetition factor of the second reference signal. Or the frequency hopping times of the first reference signal are smaller than the frequency hopping times of the second reference signal. Or, the first reference signal performs partial frequency monitoring, and the second reference signal does not perform partial frequency monitoring.

In a possible implementation manner of the third aspect, the processing unit is further configured to determine that any one or more of the following is satisfied, and to transmit the first reference signal in the first time period: the number of reference signal resources contained in the first reference signal resource set is greater than the number of reference signal resources contained in the second reference signal resource set. Or the total number of time units occupied by the reference signal resources contained in the first reference signal resource set is greater than the total number of time units occupied by the reference signal resources contained in the second reference signal resource set. Alternatively, a maximum value of the repetition factors of the reference signal resources contained in the first set of reference signal resources is smaller than a maximum value of the repetition factors of the reference signal resources contained in the second set of reference signal resources.

In a possible implementation manner of the third aspect, the transceiving unit is further configured to not transmit the second reference signal in the second time period. Or, the transceiver unit is further configured to not transmit the second reference signal in at least one time unit in which the second time period overlaps with the first time period.

In a possible implementation manner of the third aspect, the transceiver unit is further configured to transmit a second reference signal in a third time period. The third time period is temporally subsequent to the second time period.

In one possible implementation of the third aspect, the second set of reference signal resources is used to configure one or more reference signals. Where the one or more reference signals include a second reference signal. Wherein the second set of reference signal resources corresponds to a fourth time period, the fourth time period comprising the second time period. A transceiving unit further configured to not transmit one or more reference signals for a fourth time period.

In a possible implementation manner of the third aspect, the transceiver unit is further configured to transmit one or more reference signals in a fifth time period, and the fifth time period is located after the fourth time period in the time domain.

In a fourth aspect, a communication device is provided that includes a processing unit and a transceiver unit.

And the transceiving unit is used for the network equipment to send the configuration information. A processing unit for determining to receive the first reference signal at the first time period according to the configuration information. Wherein the configuration information configures a first set of reference signal resources and a second set of reference signal resources. The first set of reference signal resources includes at least first reference signal resources and the second set of reference signal resources includes at least second reference signal resources. The first reference signal resource corresponds to a first time period, and the second reference signal resource corresponds to a second time period. The first time period is used for transmitting a first reference signal, and the second time period is used for transmitting a second reference signal. Wherein the first time period and the second time period overlap.

In a possible implementation manner of the fourth aspect, the transceiving unit is further configured to transmit the first information. The first information herein is used to determine that the first reference signal resource corresponds to a first time period and is used to determine that the second reference signal resource corresponds to a second time period. Or, the transceiving unit is further configured to transmit the first information and the second information. The first information is used to determine that the first reference signal resource corresponds to a first time period, and the second information is used to determine that the second reference signal resource corresponds to a second time period.

In one possible implementation manner of the fourth aspect, the processing unit receives the first reference signal in the first time period when determining that any one or more of the following are satisfied: the number of time units occupied by the first reference signal is greater than the number of time units occupied by the second reference signal. Alternatively, the starting position of the time unit occupied by the first reference signal is before the starting position of the time unit occupied by the second reference signal. Alternatively, the repetition factor of the first reference signal is smaller than the repetition factor of the second reference signal. Or the frequency hopping times of the first reference signal are smaller than the frequency hopping times of the second reference signal. Or, the first reference signal performs partial frequency monitoring, and the second reference signal does not perform partial frequency monitoring.

In a possible implementation manner of the fourth aspect, the processing unit is further configured to determine that any one or more of the following is satisfied, and to receive the first reference signal in the first time period: the number of reference signal resources contained in the first reference signal resource set is greater than the number of reference signal resources contained in the second reference signal resource set. Or the total number of time units occupied by the reference signal resources contained in the first reference signal resource set is greater than the total number of time units occupied by the reference signal resources contained in the second reference signal resource set. Alternatively, a maximum value of the repetition factors of the reference signal resources contained in the first set of reference signal resources is smaller than a maximum value of the repetition factors of the reference signal resources contained in the second set of reference signal resources.

In a possible implementation manner of the fourth aspect, the transceiver unit is further configured to not receive the second reference signal in the second time period. Or, the transceiver unit is further configured to not receive the second reference signal over at least one time unit in which the second time period overlaps with the first time period.

In a possible implementation manner of the fourth aspect, the transceiver unit is further configured to receive a second reference signal in a third time period, where the third time period is located after the second time period in the time domain.

In one possible implementation of the fourth aspect, the second set of reference signal resources is used to configure one or more reference signals. Where the one or more reference signals include a second reference signal. Wherein the second set of reference signal resources corresponds to a fourth time period, the fourth time period comprising the second time period. The transceiving unit is further configured to not receive the one or more reference signals for a fourth time period. The one or more reference signals are not received over the fourth time period.

In a possible implementation manner of the fourth aspect, the transceiver unit is further configured to receive one or more reference signals over a fifth time period, and the fifth time period is located after the fourth time period in the time domain.

In a possible implementation manner of the first aspect to the fourth aspect, the configuration information includes configuration information of a first reference signal resource and configuration information of a second reference signal resource. Alternatively, the configuration information includes configuration information of the first set of reference signal resources and configuration information of the second set of reference signal resources. The terminal device may determine to transmit the first reference signal in the first time period according to the configuration information of the first reference signal resource and the configuration information of the second reference signal resource. Alternatively, the terminal device may determine to transmit the first reference signal in the first time period according to the configuration information of the first reference signal resource set and the configuration information of the second reference signal resource set.

In a possible implementation manner of the first aspect to the fourth aspect, the configuration information of the first reference signal resource includes any one or more of the following information: the number of time units occupied by the first reference signal, the starting position of the time unit occupied by the first reference signal, the repetition factor of the first reference signal, the frequency hopping times of the first reference signal, and whether the first reference signal supports partial frequency monitoring. The configuration information of the second reference signal resource includes any one or more of the following information: the number of time units occupied by the second reference signal, the starting position of the time unit occupied by the second reference signal, the repetition factor of the second reference signal, the frequency hopping times of the second reference signal, and whether the second reference signal supports partial frequency monitoring.

In a possible implementation manner of the first aspect to the fourth aspect, the configuration information of the first reference signal resource set includes any one or more of the following information: the number of reference signal resources contained in the first reference signal resource set, the total number of time units occupied by the reference signal resources contained in the first reference signal resource set, and the repetition factor of the reference signal resources contained in the first reference signal resource set. The configuration information of the second set of reference signal resources comprises any one or more of the following information: the number of reference signal resources contained in the second reference signal resource set, the total time unit number occupied by the reference signal resources contained in the second reference signal resource set, and the repetition factor of the reference signal resources contained in the second reference signal resource set.

In one possible implementation manner of the first aspect to the fourth aspect, the third time period is a time period closest to the second time period in a time domain. Alternatively, the third time period is an available time period of the second reference signal that is closest in time domain to the second time period.

Based on the above scheme, when the first time period and the second time period overlap, the terminal may send the first reference signal in the first time period and send the second reference signal in the third time period, and since the third time period is an available time period of the second reference signal closest to the second time period, the terminal may send the second reference signal with the least time delay, and may avoid the loss of the second reference signal, thereby reducing the loss of the channel measurement information.

In one possible implementation manner of the first to fourth aspects, the fifth time period is a time period closest to the fourth time period in a time domain. Or, the fifth time period is an available time period of the second set of resources that is closest in time domain to the fourth time period.

Based on the above scheme, when the first time period and the second time period overlap, the terminal may transmit one or more reference signals in the second reference signal set in the fifth time period, and since the fifth time period is an available time period of the second reference signal closest to the fourth time period, the reference signal in the second reference signal set may be transmitted with the least time delay, and the loss of the second reference signal set may be avoided, thereby reducing the loss of the channel measurement information.

In a fifth aspect, a communications apparatus is provided that includes a processor. The processor executes the computer program stored in the memory to cause the communication device to perform the method of the various possible implementations of the aspects described above. Optionally, the number of the processors is one or more.

Optionally, the communication device further includes a memory. Wherein the processor is coupled to a memory for storing computer programs or instructions, the memory may be located within the apparatus or external to the apparatus.

In a sixth aspect, the present application provides a communication apparatus comprising: a processor and interface circuitry for communicating with other devices, the processor being configured to implement the methods in the various possible implementations of the aspects described above.

In a seventh aspect, a communications apparatus is provided. The apparatus includes a logic circuit and an input-output interface.

In one example, the input-output interface is used to input configuration information. The logic circuit is configured to determine to transmit the first reference signal for the first time period based on the configuration information. A more detailed description of the scheme may be found in relation to the above-described first aspect.

In one example, the input-output interface is used to input and output configuration information. Logic circuitry to determine to receive a first reference signal during a first time period based on configuration information. A more detailed description of the solution can be found in relation to the above-mentioned second aspect.

In an eighth aspect, the present application further provides a chip system, including: a processor configured to perform a method in various possible implementations of the above aspects.

In a thirteenth aspect, the present application further provides a communication system, including: the communication device shown in the first aspect and the communication device shown in the second aspect.

In a ninth aspect, the present application also provides a computer program product comprising computer executable instructions that, when executed on a computer, cause the method of the various possible implementations of the above aspects to be performed.

In a tenth aspect, the present application further provides a computer-readable storage medium, in which a computer program or instructions are stored, which, when executed on a communication device, implement the method in the various possible implementations of the above aspects.

Drawings

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

fig. 2 is an exemplary flowchart of a reference signal transmission method according to an embodiment of the present application;

fig. 3 is a schematic diagram of a collision scenario of an SRS transmission timeslot according to an embodiment of the present application;

fig. 4 is a schematic diagram of a third time period provided in the embodiment of the present application;

fig. 5 is a schematic diagram of a third time period provided in the embodiment of the present application;

fig. 6 is a schematic diagram of a third time period provided in the embodiment of the present application;

fig. 7 is a schematic diagram of a third time period provided in the embodiment of the present application;

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

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

fig. 10 is a schematic diagram of a terminal according to an embodiment of the present application.

Detailed Description

Fig. 1 is a schematic architecture diagram of a communication system 1000 to which an embodiment of the present application is applied. As shown in fig. 1, the communication system includes a radio access network 100 and a core network 200, and optionally, the communication system 1000 may further include an internet 300. The radio access network 100 may include at least one network device (e.g., 110a and 110b in fig. 1) and may further include at least one terminal apparatus (e.g., 120a-120j in fig. 1). The terminal device is connected with the network equipment in a wireless mode, and the network equipment is connected with the core network in a wireless or wired mode. The core network device and the network device may be separate physical devices, or the function of the core network device and the logic function of the network device may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the network device. The terminal devices and the network devices may be connected to each other in a wired or wireless manner. Fig. 1 is a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the communication system, which are not shown in fig. 1.

The network device may also be referred to as a radio access network device, and may be a base station (base station), an evolved NodeB (eNodeB), a Transmission Reception Point (TRP), a next generation base station (gNB) in a fifth generation (5th generation, 5g) mobile communication system, a next generation base station in a sixth generation (6th generation, 6g) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; the present invention may also be a module or a unit that performs part of the functions of the base station, for example, a Centralized Unit (CU) or a Distributed Unit (DU). The CU here completes the functions of a radio resource control protocol and a packet data convergence layer protocol (PDCP) of the base station, and may also complete the functions of a Service Data Adaptation Protocol (SDAP); the DU performs functions of a radio link control (rlc) layer and a Medium Access Control (MAC) layer of the base station, and may also perform functions of a part of or all of a physical layer, and for detailed descriptions of the above protocol layers, reference may be made to related technical specifications of the third generation partnership project (3 gpp). The network device may be a macro base station (e.g., 110a in fig. 1), a micro base station or an indoor station (e.g., 110b in fig. 1), a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices. For convenience of description, the following description will be made with a base station as an example of a network device.

A terminal apparatus may also be referred to as a terminal device, a User Equipment (UE), a mobile station, a mobile terminal, or the like. The terminal device can be widely applied to various scenes, for example, device-to-device (D2D), vehicle-to-equipment (V2X) communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wearing, smart transportation, smart city, and the like. The terminal device can be a mobile phone, a tablet personal computer, a computer with a wireless transceiving function, a wearable device, a vehicle, an unmanned aerial vehicle, a helicopter, an airplane, a steamship, a robot, a mechanical arm, an intelligent household device and the like. The embodiments of the present application do not limit the specific technology and the specific device form used by the terminal device. In the embodiments of the present application, a terminal is taken as an example for description.

The base stations and terminals may be fixed or mobile. The base station and the terminal can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons, and satellite vehicles. The embodiment of the application does not limit the application scenarios of the base station and the terminal.

The roles of base station and terminal may be relative, e.g., helicopter or drone 120i in fig. 1 may be configured to move the base station, for those terminals 120j that access radio access network 100 through 120i, terminal 120i is the base station; however, for the base station 110a, 120i is a terminal, i.e. the base station 110a and 120i communicate with each other via a wireless air interface protocol. Of course, 110a and 120i may communicate with each other through an interface protocol between the base station and the base station, and in this case, 120i is also the base station as compared to 110 a. Therefore, the base station and the terminal may be collectively referred to as a communication apparatus, 110a and 110b in fig. 1 may be referred to as a communication apparatus having a base station function, and 120a to 120j in fig. 1 may be referred to as a communication apparatus having a terminal function.

The base station and the terminal, the base station and the base station, and the terminal can communicate through the authorized spectrum, the unlicensed spectrum, or both the authorized spectrum and the unlicensed spectrum; communication may be performed in a frequency spectrum of 6 gigahertz (GHz) or less, in a frequency spectrum of 6GHz or more, or in a frequency spectrum of 6GHz or less and in a frequency spectrum of 6GHz or more. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

In the embodiment of the present application, the functions of the base station may also be performed by a module (e.g., a chip) in the base station, or may also be performed by a control subsystem including the functions of the base station. The control subsystem including the base station function can be a control center in the application scenarios such as a smart grid, industrial control, intelligent transportation, smart city, and the like. The functions of the terminal may also be performed by a module (e.g., a chip or a modem) in the terminal, or by a device including the functions of the terminal.

In the application, a base station sends a downlink signal or downlink information to a terminal, and the downlink information is carried on a downlink channel; the terminal sends uplink signals or uplink information to the base station, and the uplink information is carried on an uplink channel. In order for a terminal to communicate with a base station, the terminal needs to establish a radio connection with a cell controlled by the base station. The cell in which a radio connection is established with a terminal is called the serving cell of the terminal. When the terminal communicates with the serving cell, it is also interfered by signals from neighboring cells.

In the embodiment of the present application, the time domain symbol may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol, or may be a Discrete Fourier Transform-spread-OFDM (DFT-s-OFDM) symbol. The symbols in the embodiments of the present application all refer to time domain symbols, if not otherwise specified.

In the present application, different RSs refer to RSs with different transmission timings.

The embodiment of the application is suitable for various types of reference signals, and can comprise uplink reference signals and downlink reference signals. For example, the uplink reference signal may be a Sounding Reference Signal (SRS), a demodulation reference signal (DMRS), or a positioning reference signal. The SRS is used for antenna switching (for example, the higher layer parameter use is configured as antenna switching), or is used for beam management (for example, the higher layer parameter use is configured as beam management), or is used for codebook-based uplink data transmission (for example, the higher layer parameter use is configured as codebook), or is used for non-codebook-based uplink data transmission (for example, the higher layer parameter use is configured as non-codebook), or is used for positioning. Further, the SRS may be a configured SRS, or a triggered SRS, or a transmitted SRS. The downlink reference signal may include a Cell Reference Signal (CRS), and the like. The RS may be used in an NR system or in an LTE system. In the embodiments of the present application, the RS is specifically described by taking the SRS as an example, but the RS is not excluded from being other reference signals.

In the present application, transmitting an SRS may be understood as transmitting an SRS corresponding to an SRS resource, or may be referred to as transmitting an SRS resource. For example, one SRS resource may configure a time-frequency resource of one SRS, and thus, transmitting the SRS may be understood as transmitting the SRS on the time-frequency resource.

In this application, a higher layer is understood to be a higher layer protocol layer, including at least one protocol layer above the physical layer: a Medium Access Control (MAC) layer, a Radio Link Control (RLC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Resource Control (RRC) layer, and a non-access stratum (NAS) layer. Correspondingly, in embodiments of the present application, the higher layer signaling may be NAS layer signaling, an RRC message or a Media Access Control (MAC) Control Element (CE), and the RRC signaling may include dedicated RRC signaling or broadcast multicast RRC signaling, which is not limited in this embodiment.

In one example, one SRS resource set may be configured as three time domain behaviors of periodic sounding reference signals (P-SRS), semi-persistent sounding reference signals (SP-SRS), and aperiodic sounding reference signals (AP-SRS) by a higher layer parameter resource type (resource type).

The time domain behavior of all SRS resources contained in the set of SRS resources is periodic, semi-persistent, or aperiodic. The SRS resources are divided into P-SRS, SP-SRS or AP-SRS according to different time domain behaviors.

For P-SRS, each SRS resource may be configured with a period and a time domain offset. For example, the period at the slot level and the offset at the slot level may be used, and the terminal may cyclically transmit the SRS according to the configured time domain offset and the configured period. For the SP-SRS, each SRS resource may also be configured with a period and a time domain offset, and an activation or deactivation command is sent through MAC CE signaling, when the SP-SRS is activated, the terminal may cyclically send the SRS according to the configured period and the time domain offset, until receiving the deactivation command, and then stop sending the SRS.

For AP-SRS resources, the base station may define a slot level offset for each set of SRS resources by means of higher layer parameters. And the base station triggers the terminal equipment to send the AP-SRS through the DCI. And the terminal receives the DCI in a time slot n, determines an available time slot for sending the SRS according to the time slot level offset defined by the high-level parameters, the time slot n and the available time slot identification indicated by the DCI, and sends the SRS in the determined time slot. AP-SRS, may be understood as SRS triggered by DCI, and its time domain behavior may be understood as transmitting triggered SRS in an aperiodic time domain behavior.

Currently, for sending a triggered SRS in an aperiodic time domain behavior, when a terminal receives DCI for downlink scheduling or a group common DCI or an uplink DCI, at least one trigger state exists in an SRS request (request) field in the DCI, and the trigger state is used to trigger one or more configured SRSs. In the case where supplemental uplink (supplemental upstream) information is not configured, the field length of the SRS request field in the DCI is two bits, for example, see table 1 below.

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TABLE 1

In table 1, when the value of the SRS request field is 00, it indicates that there is no triggered SRS, that is, there is no triggered SRS transmitted in an aperiodic time domain. Illustratively, for typeB, when the value of the SRS request field is 01 and the higher layer parameter aperiodic SRS-ResourceTrigger is configured as an SRS of 1, it indicates that the triggered SRS is the SRS with the higher layer parameter aperiodic SRS-ResourceTrigger configured as 1.

Or, when the value of the SRS request field is 01 and one of the high-level parameters aperiodic SRS-resource triggerlist is configured as an SRS of 1, it indicates that the triggered SRS is the SRS configured as 1 in the high-level parameters aperiodic SRS-resource triggerlist. Illustratively, for typeA, when the value of the SRS request field is 01, and the 1 st group of uses in the higher-layer configured serving cell is configured as the SRS of 'antennaSwitching', it indicates that the triggered SRS is configured as the SRS of 'antennaSwitching' from the 1 st group of uses in the higher-layer configured serving cell.

As described above, the triggering of the AP-SRS resource set is in resource set units, and thus the slot level offset is configured in resource set units. That is to say, the high-layer parameter aperiodic SRS-resource trigger is configured in a resource set, and the DCI triggers all SRS resources of one AP-SRS resource set. And the transmission position of each AP-SRS resource is configured by the base station through a higher layer parameter. Specifically, the base station configures, for each AP-SRS resource, the number of consecutive OFDM symbols for transmitting the AP-SRS resource, the number of repeatedly transmitted OFDM symbols (referred to as a repetition factor), and a starting symbol position occupied by the AP-SRS resource in a trigger slot through a high-layer parameter (resource mapping). It should be noted that the slot format of the NR includes a downlink symbol, an uplink symbol, and a flexible symbol, and the AP-SRS resource may be transmitted on the uplink symbol or the flexible symbol.

The base station may trigger the configured set of one or more AP-SRS resources through the DCI. When multiple AP-SRS resource sets are configured, resource collisions may occur for different AP-SRS resource sets. For example, a slot collision of AP-SRS resources of different sets of AP-SRS resources, or a symbol collision of AP-SRS resources of different sets of AP-SRS resources.

It should be noted that the resource types of SRS may be aperiodic, semi-persistent, or periodic. The method and the device are also suitable for collision of semi-continuous SRS resources, or collision of periodic SRS resources, or collision of SRS resources of different resource types.

In the present application, collision of different SRSs means that there is overlap between symbols for transmitting different SRSs or that symbols for transmitting different SRSs are included in the same slot. Optionally, the resource types of different SRS here are all antenna switching. In the present application, the collision of different SRS may be understood as a collision of different SRS resources.

In view of the above, the present application provides a method for transmitting a reference signal. In the method, when different SRS resources collide, the terminal may determine which SRS resource to transmit on the collided resource according to the configuration information of the SRS resources.

Referring to fig. 2, an exemplary flowchart of a method for transmitting a reference signal according to an embodiment of the present disclosure may include the following operations. In the embodiments of the present application, an execution subject is taken as an example of a terminal and a base station.

S201: the base station sends the configuration information, and the corresponding terminal acquires the configuration information.

The configuration information may be configured by a higher layer, such as parameters configured by an RRC layer, or parameters configured by a MAC Control Element (CE). Alternatively, the configuration information may also be a configuration parameter indicated by downlink control information, such as a configuration parameter indicated by DCI.

The configuration information may configure a plurality of SRS resource sets. For example, the configuration information configures a first set of SRS resources and a second set of SRS resources. The first set of SRS resources may include one or more SRS resources, for example, the first set of SRS resources includes at least the first SRS resource. The second set of SRS resources may include one or more SRS resources, e.g., the first set of SRS resources includes at least the second SRS resource.

In a possible implementation manner, the first SRS resource corresponds to a first time period, and the second SRS resource corresponds to a second time period. Wherein a time period may comprise one or more time units. In this application, a time unit may be a slot, symbol, minislot, frame, subframe, or half-frame.

The corresponding time period refers to a time period for transmitting the SRS. The period for transmitting the SRS refers to a period for transmitting the SRS, and for example, a period available for transmitting the SRS is calculated according to the configuration information and the downlink control information.

In the present application, transmitting SRS may also be understood as transmitting SRS, and transmitting SRS resources may be understood as transmitting SRS resources.

The SRS resource corresponding period refers to a period for transmitting the SRS resource or a period for transmitting an SRS resource set including the SRS resource. For example, the period corresponding to the SRS resource is a period in which one SRS is transmitted. Wherein, one SRS is configured by the SRS resource. For another example, the SRS resource corresponds to a period in which a plurality of SRSs are transmitted. Wherein, the plurality of SRS are configured by SRS resource sets including the SRS resources.

For example, a first SRS is configured on a first SRS resource, the first set of SRS resources includes the first SRS resource, and the first SRS resource corresponding to the first time period refers to transmission of the first SRS resource in the first time period, or the first SRS resource corresponding to the first time period refers to transmission of the first set of SRS resources in the first time period, or the first SRS resource corresponding to the first time period refers to transmission of the SRS included in the first set of SRS resource in the first time period.

For example, the time slot corresponding to the SRS resource is an available slot including an SRS resource set in which the SRS resource is located, or a symbol configured for the SRS resource in an available slot including an SRS resource set in which the SRS resource is located. In the application, an available slot of SRS resources and an available slot of SRS resource set are the same slot.

In the embodiment of the present application, the time period corresponding to the SRS resource is a time period configured by the base station to the terminal for transmitting the SRS, but is not necessarily a time period in which the terminal actually transmits the SRS. For example, when there is no overlap between the first and second periods, the first SRS is transmitted in the first period, and the second SRS is transmitted in the second period. For another example, when the first time period and the second time period overlap and the priority of the first SRS is higher than the priority of the second SRS, the first SRS is transmitted in the first time period, and optionally the second SRS is not transmitted in the second time period. For another example, when the first time period and the second time period overlap and the priority of the first SRS is lower than the priority of the second SRS, the second SRS is transmitted in the second time period, optionally the first SRS is not transmitted in a portion where the first time period and the second time period overlap, and the first SRS is transmitted in a portion where the first time period and the second time period do not overlap.

It is noted that a time period refers to a period of time, for example, a time period may include one or more time units. The time period includes a plurality of time units, which may be continuous or discontinuous. For example, the first time period includes N time units and the second time period includes M time units. Wherein N and M are integers greater than 0. N = M, or N ≠ M. The aforementioned N time units may be continuous in the time domain, or may also be discontinuous. Likewise, the aforementioned M time units may be continuous in the time domain, or may also be discontinuous.

In one example, a time unit is taken as an example for explanation. The time period includes one or more symbols. For example, the first time period includes one symbol and the second time period includes one symbol. As another example, the first time period includes a plurality of consecutive symbols and the second time period includes one symbol. For another example, the first time period includes a plurality of discontinuous symbols and the second time period includes a plurality of continuous symbols. As another example, the first time period includes 2 consecutive symbols and the second time period includes 2 non-consecutive symbols. In another example, a time unit is taken as an example of a time slot. The time period includes one or more time slots. For example, the first time period includes one slot and the second time period includes one slot.

In a possible implementation manner, the terminal may determine, according to an instruction of the base station, that the first SRS resource corresponds to a first time period and determine that the second SRS resource corresponds to a second time period. For example, the terminal may determine that the first SRS resource corresponds to the first time period and determine that the second SRS resource corresponds to the second time period according to the first information. For another example, the terminal may determine that the first SRS resource corresponds to a first time period according to the first information, and determine that the second SRS resource corresponds to a second time period according to the second information.

The first information and the second information may be downlink control information, such as DCI. For example, the base station transmits a first DCI to the terminal, where the first DCI triggers a first SRS resource set and a second SRS resource set, and the first DCI indicates that the first SRS resource corresponds to a first time period and indicates that the second SRS resource corresponds to a second time period. For another example, the base station sends a first DCI to the terminal, where the first DCI triggers a first SRS resource set, and the first DCI indicates that the first SRS resource corresponds to a first time period; and the base station sends second DCI to the terminal, the second DCI triggers a second SRS resource set, and the second DCI indicates that the second SRS resource corresponds to a second time period.

For example, the DCI indicates that the t value of the first SRS resource set is t1, and then the terminal may determine, according to the t value and the slot level offset k1 of the first SRS resource set configured by the configuration information and the slot n in which the DCI is located, that the first time period corresponding to the first SRS resource is the t1+1 th available slot after the slot k1+ n. Similarly, the DCI indicates that the t value of the second SRS resource set is t2, and then the terminal may determine, according to the t value and the slot level offset k2 of the second SRS resource configured by the configuration information and the slot n where the DCI is located, that the second time period corresponding to the second SRS resource is the t2+1 th available slot after the slot k2+ n.

For another example, assume that the terminal determines, according to the t value of the first SRS resource and the t value of the second SRS resource indicated in the DCI, that the slot corresponding to the first SRS resource is slot 2 and that the slot corresponding to the second SRS resource is slot 2. The time domain starting position of the first SRS resource included in the configuration information is symbol 1 and the number of OFDM symbols occupied by the first SRS resource is 2, and then the terminal may determine that the first time period corresponding to the first SRS resource is symbol 1 and symbol 2 in the time slot 2. The time domain starting position of the first SRS resource included in the configuration information is symbol 2 and the number of OFDM symbols occupied by the second SRS resource is 2, and then the terminal may determine that the second time period corresponding to the second SRS resource is symbol 2 and symbol 3 in the time slot 2.

In an embodiment of the application, the first time period overlaps with the second time period. The first time period and the second time period may overlap, either completely or partially.

In a possible embodiment, the time period is one or more symbols, and the first time period overlapping with the second time period may be understood as that there is at least one symbol of the symbols comprised in the first time period overlapping with the symbols comprised in the second time period. For example, the first period is symbol 1 and symbol 2 in slot 2, and the second period corresponding to the second SRS resource is symbol 2 and symbol 3 in slot 2, where symbol 2 in the symbols included in the first period overlaps symbol 2 in the second period, and the first period may be considered to overlap the second period. For another example, the first period is symbol 1 and symbol 2 in slot 2, the second period corresponding to the second SRS resource is symbol 1 and symbol 2 in slot 2, and in this case, symbol 1 in the symbols included in the first period overlaps symbol 1 included in the second period, and symbol 2 in the symbols included in the first period overlaps symbol 2 included in the second period, so that the first period can be considered to overlap the second period.

In a possible embodiment, the time period is one or more time slots, and the first time period overlapping the second time period may be understood as that at least one time slot of the time slots included in the first time period overlaps the time slot included in the second time period. For example, assuming that the first period includes a slot 1 and the second period includes a slot 1, the first period may be considered to overlap with the second period since the slot 1 of the slots included in the first period overlaps with the slot 1 included in the second period.

S202: and the terminal determines to transmit the first SRS in the first time period according to the configuration information.

For example, the terminal may determine the priority of the first SRS and the priority of the second SRS according to the configuration information, and if the priority of the first SRS is higher than the priority of the second SRS, the terminal determines to transmit the first SRS for the first time period. And if the priority of the first SRS is lower than that of the second SRS, the terminal determines to transmit the second SRS in the second time period.

In this application, the priority of the SRS may be the same as the priority of the SRS resource or the priority of the set of SRS resources. For example, the priority of the first SRS resource may be a priority of the first SRS. For another example, the priority of the first set of SRS resources can be a priority of the first SRS. Assuming that the terminal determines that the priority of the first SRS is higher than that of the second SRS according to the configuration information, the priority of the first SRS resource may be considered to be higher than that of the second SRS resource, or the priority of the first SRS resource set may also be considered to be higher than that of the second SRS resource set.

Optionally, the method may further include S203: the terminal transmits a first SRS in a first time period, and the corresponding base station receives the first SRS in the first time period.

In one example, the base station may also determine to receive the first SRS for the first time period according to the configuration information. The method in which the base station determines to receive the first SRS for the first time period may be the same as the method in which the terminal determines to transmit the first SRS for the first time period. In the following, the terminal determines to receive the first SRS in the first time period.

Based on the above scheme, when a first time period corresponding to the first SRS resource overlaps with a time period corresponding to the second SRS resource, the terminal may determine whether to transmit the first SRS in the first time period or to transmit the second SRS in the second time period according to the configuration information.

In one example, the terminal may determine to transmit the first SRS for the first time period according to configuration information of the first SRS resource and configuration information of the second SRS resource included in the configuration information. For example, the terminal may determine to transmit the first SRS in the first time period according to the configuration information of the time-frequency resource in the first SRS resource and the configuration information of the time-frequency resource in the second SRS resource, which are included in the configuration information.

Specifically, the SRS resource configuration information may include a resource identifier of the SRS resource and/or configuration information of a time-frequency resource. For example, the configuration information of the first SRS resource may include a resource identifier of the first SRS resource and configuration information of a time-frequency resource of the first SRS, and the configuration information of the second SRS resource may include a resource identifier of the second SRS resource and configuration information of a time-frequency resource of the second SRS. The terminal may determine to transmit the first SRS in the first time period according to the configuration information of the time-frequency resource of the second SRS and the configuration information of the time-frequency resource of the first SRS.

Based on the above scheme, the terminal may determine whether to transmit the first SRS in the first period or the second SRS in the second period according to the configuration information of the first SRS resource and the configuration information of the second SRS resource.

In another example, the terminal may determine to transmit the first SRS for the first time period according to configuration information of the first SRS resource set and configuration information of the second SRS resource included in the configuration information. For example, the terminal may determine to transmit the first SRS for the first time period according to the configuration information of the time-frequency resources of one or more first SRS resources in the first SRS resource set and the configuration information of the time-frequency resources of one or more second SRS resources in the second SRS resource set, which are included in the configuration information.

Specifically, the configuration information of the SRS resource may be configuration information of an SRS resource set where the SRS resource is located. For example, the SRS resource set identifier and/or configuration information of the number of resources included in the SRS resource set. For example, the configuration information of the first SRS resource may include a resource identifier of the first SRS resource set and configuration information of the number of resources included in the first SRS resource set, and the configuration information of the second SRS resource may include a resource identifier of the second SRS resource set and configuration information of the number of resources included in the second SRS resource set. The terminal may determine to transmit the first SRS in the first time period according to the configuration information of the second SRS resource set and the configuration information of the first SRS resource set.

Based on the above scheme, the terminal may determine whether to transmit the first SRS in the first time period or the second SRS in the second time period according to the configuration information of the first SRS resource set and the configuration information of the second SRS resource set.

Referring to fig. 3, a scenario of transmitting a slot collision in the embodiment of the present application will be described. The slot format of the NR includes a downlink symbol, an uplink symbol, and a flexible symbol, and the SRS is transmitted on the uplink symbol or the flexible symbol. For example, it is assumed that a slot including a downlink symbol is defined as "D", a slot including an uplink symbol and a flexible symbol is defined as "U", and a slot including a downlink symbol, an uplink symbol, and a flexible symbol is defined as "S".

In fig. 3, the downlink time slot is denoted by "D", the uplink time slot is denoted by "U", and the flexible time slot is denoted by "S". Suppose that the base station configures two SRS resource sets, SRS resource set 1 and SRS resource set 2, for the terminal. The base station may trigger the configured SRS resource set 1 and SRS resource set 2 through the DCI. That is, the transmission slots of the resources in SRS resource set 1 and SRS resource set 2 can be determined according to the DCI, and the determination process is as follows:

first, reference slots of the SRS resource set 1 and the SRS resource set 2 are determined, respectively. The base station configures slot level offsets k for the SRS resource set 1 and the SRS resource set 2, respectively. For example, the value for the SRS resource set 1,k is 1, and the value for the SRS resource set 2,k is 3. The terminal receives DCI on the first slot D in fig. 3, i.e., slot 0. Since the reference time slot is the sum of the time slot where the DCI is located and the time slot level offset configured by the base station, it can be determined that the reference time slot of SRS resource set 1 is time slot 1, and the reference time slot of SRS resource set 2 is time slot 3. The terminal determines transmission slots of the SRS resource set 1 and the SRS resource set 2. The sending time slots of the SRS resource set 1 and the SRS resource set 2 are t +1 available time slots after the reference time slot, and the available time slots for the SRS resource set 1 are assumed to be U time slots, and the available time slots for the SRS resource set 2 are assumed to be S and U time slots. The DCI indicates that t of both resource sets is 0, and it can be known that the 1 st available slot after the reference slot of SRS resource set 1 is slot 4, and the 1 st available slot after the reference slot of SRS resource set 2 is also slot 4, that is, the resource collision occurs between the two resource sets.

In addition, the base station can configure one AP-SRS resource set through the high-level parameters, the starting symbol position occupied by each AP-SRS resource in the trigger time slot, and if the base station configures the same starting symbol position for two or more AP-SRS resources and the sending time slots of the AP-SRS resources collide, the sending symbols of the two or more AP-SRS resources further collide.

In another example, the base station may configure SRS resources for antenna switching for the terminal. The base station may configure the SRS resource for antenna switching to the terminal through RRC signaling. The base station may DCI trigger transmission of a set of AP-SRS resources for antenna switching.

In order to increase the flexibility of scheduling and the transmission success rate of SRS resources, it is allowed to configure a plurality of AP-SRS resource sets for antenna switching for a terminal. The maximum number N _ max of AP-SRS resource sets configured by the terminal is respectively as follows:

the N _ max value of a terminal configuring one transmitting antenna 6 receiving antennas and a terminal configuring two transmitting antennas 6 receiving antennas is 3.

The N _ max value of a terminal configured with one transmitting antenna and 8 receiving antennas and a terminal configured with two transmitting antennas and 8 receiving antennas is 4.

The N _ max value of a terminal configured with 4 transmit antennas and 8 receive antennas is 2.

It should be noted that, at present, it is not allowed to configure or trigger multiple AP-SRS resource sets in one timeslot.

The inventors have found that several resource collisions occur because different AP-SRS resource sets have different requirements for available slots, i.e. one slot may be an available slot for one AP-SRS resource set and an unavailable slot for another AP-SRS resource set. Therefore, even if different slot offsets and/or available slot numbers are configured for different AP-SRS resource sets, it still may cause transmission slots of different AP-SRS resource sets to be in the same slot, and at this time, the requirement that at most only one SRS resource set for antenna switching is not satisfied in the same slot may also be regarded as a collision scenario between SRSs. Therefore, the RS is determined and transmitted by adopting the parameters of the repetition factor of the SRS resource, the initial position of the time unit occupied by the SRS resource, the number of the time units occupied by the SRS resource, the frequency hopping times of the SRS resource or whether the SRS resource supports partial frequency monitoring or not, and the like, so that the effect of ensuring that the resource with high requirement on time domain resources is transmitted in advance can be achieved.

Hereinafter, two cases in which the configuration information includes the configuration information of the SRS resource and the configuration information of the SRS resource set will be described as examples.

In case 1, the terminal determines to transmit the first SRS in the first time period according to the configuration information of the first SRS resource and the configuration information of the second SRS resource.

In one example, the configuration information of the first SRS resource refers to configuration information of a time-frequency resource of the first SRS resource. The configuration information of the first SRS resource may include any one or more of the following 1) to 5):

1) And the number of time units occupied by the first SRS. For example, the number of symbols occupied by the first SRS may be determined according to a high-layer parameter nrofSymbols.

2) And the starting position of the time unit occupied by the first SRS. For example, the first SRS occupies a symbol start position. The time unit starting position can be a symbol index or a symbol index calculated according to a value configured by a high-level parameter startPosition.

3) A repetition factor of the first SRS. For example, the number of symbols occupied by the first SRS that is repeatedly transmitted may be determined according to a higher layer parameter repetitionactor.

4) And the frequency hopping times of the first SRS. For example, the frequency hopping number is calculated by the number of symbols occupied by the first SRS and the repetition factor of the first SRS. For another example, the frequency hopping number is a ratio of the number of symbols occupied by the first SRS to the repetition factor of the first SRS, or is a rounded-down value of the ratio of the number of symbols occupied by the first SRS to the repetition factor of the first SRS.

5) And whether the first SRS supports partial frequency listening. For example, on the basis of the SRS listening bandwidth, the first SRS supports listening to the partial bandwidth, or the first SRS supports frequency hopping of the starting resource block position in the partial frequency listening.

In another example, the configuration information of the second SRS resource refers to configuration information of a time-frequency resource of the second SRS resource. Wherein, the configuration information of the second SRS resource may include any one or more of the following 1) to 5):

1) And the number of time units occupied by the second SRS. For example, the number of symbols occupied by the second SRS may be determined according to the high-layer parameter nrofSymbols.

2) And a starting position of a time unit occupied by the second SRS. For example, the second SRS occupies a symbol start position. The time unit starting position can be a symbol index or a symbol index calculated according to a value configured by a high layer parameter startPosition.

3) A repetition factor of the second SRS. For example, the number of symbols occupied by the second SRS that is repeatedly transmitted may be determined according to a higher layer parameter repetitionactor.

4) And the frequency hopping times of the second SRS. For example, the frequency hopping number is calculated by the number of symbols occupied by the second SRS and the repetition factor of the second SRS. For another example, the frequency hopping number is a ratio of the number of symbols occupied by the second SRS to the repetition factor of the second SRS, or a rounded-down value of the ratio of the number of symbols occupied by the second SRS to the repetition factor of the second SRS.

5) And whether the second SRS supports partial frequency listening. For example, on the basis of the SRS listening bandwidth, the second SRS supports listening part bandwidth, or the second SRS supports starting resource block position frequency hopping in partial frequency listening.

The terminal may determine to transmit the first SRS in the first time period or determine to transmit the second SRS in the second time period through any one or more of conditions 1 to 5.

Condition 1: whether the number of time units occupied by the first SRS is larger than the number of time units occupied by the second SRS.

The terminal may determine a size relationship between the number of time units occupied by the first SRS and the number of time units occupied by the second SRS. If the number of time units occupied by the first SRS is greater than the number of time units occupied by the second SRS, the terminal may determine to transmit the first SRS in the first time period. If the number of time units occupied by the first SRS is smaller than the number of time units occupied by the second SRS, the terminal may determine to transmit the second SRS in the second time period.

For example, assuming that the configuration information of the first SRS resource includes that the number of time units occupied by the first SRS is 3 symbols, and the configuration information of the second SRS resource includes that the number of time units occupied by the second SRS is 2 symbols, that is, the number of time units occupied by the first SRS is greater than the number of time units occupied by the second SRS, the terminal may determine to transmit the first SRS in the first time period.

Condition 2: whether a starting position of a time unit occupied by the first SRS is before a starting position of a time unit occupied by the second SRS.

The terminal may determine which of a start position of a time unit occupied by the first SRS and a start position of a time unit occupied by the second SRS is previous in a time domain. The terminal may determine to transmit the first SRS for the first time period if the start position of the time unit occupied by the first SRS is located before the start position of the time unit occupied by the second SRS in the time domain. The terminal may determine to transmit the second SRS for the second period of time if the start position of the time unit occupied by the first SRS is located after the start position of the time unit occupied by the second SRS in the time domain.

For example, assuming that the configuration information of the first SRS resource includes that the starting position of the time unit occupied by the first SRS is time unit 1, and the starting position of the time unit occupied by the second SRS is time unit 2, since the starting position of the time unit occupied by the first SRS is located before the starting position of the time unit occupied by the second SRS in the time domain, the terminal may determine to transmit the first SRS in the first time period.

Condition 3: whether the repetition factor of the first SRS is greater than the repetition factor of the second SRS.

The terminal may determine a size relationship of the repetition factor of the first SRS and the repetition factor of the second SRS. The terminal may determine to transmit the first SRS for the first time period if the repetition factor of the first SRS is less than the repetition factor of the second SRS. The terminal may determine to transmit the second SRS for the second period of time if the repetition factor of the first SRS is greater than the repetition factor of the second SRS.

For example, assuming that the configuration information of the first SRS resource includes that the repetition factor of the first SRS is 3, and the configuration information of the second SRS resource includes that the repetition factor of the second SRS is 6, since the repetition factor of the first SRS is greater than the repetition factor of the second SRS, the terminal may determine to transmit the first SRS for the first time period.

Condition 4: whether the number of hops of the first SRS is greater than the number of hops of the second SRS.

The terminal may determine the frequency of the first SRS according to the configuration information of the first SRS resource, and may determine the frequency of the second SRS according to the configuration information of the second SRS resource. The terminal can determine the relationship between the frequency hopping times of the first SRS and the frequency hopping times of the second SRS. The terminal may determine to transmit the first SRS for the first time period if the terminal determines that the number of hopping frequencies of the first SRS is greater than the number of hopping frequencies of the second SRS. The terminal may determine to transmit the second SRS over the second time period if the number of hops of the first SRS is less than the number of hops of the second SRS.

For example, assuming that the configuration information of the first SRS resource includes that the number of hopping times of the first SRS is 12, and the configuration information of the second SRS resource includes that the number of hopping times of the second SRS is 8, since the number of hopping times of the first SRS is greater than the number of hopping times of the second SRS, the terminal may determine to transmit the first SRS in the first period.

The complete transmission of the SRS resources with a plurality of frequency hopping times is ensured, and the diversity gain can be increased.

Alternatively, if the terminal determines that the number of hopping frequencies of the first SRS is greater than the number of hopping frequencies of the second SRS, the terminal may determine to transmit the second SRS over the second period of time. The terminal may determine to transmit the second SRS over the second time period if the number of hops of the first SRS is less than the number of hops of the second SRS.

For the reference signals with small frequency hopping times, the frequency domain resources occupied on each time unit are large, the reference signals with small frequency hopping times have high priority, and more channel information carried by the reference signals which are sent first can be ensured. Condition 5: whether the first SRS carries out partial frequency monitoring or not and whether the second SRS carries out partial frequency monitoring or not.

The terminal may determine which SRS of the first SRS and the second SRS performs partial frequency listening. If the first SRS performs partial frequency listening and the second SRS does not perform partial frequency listening, the terminal may determine to transmit the first SRS for a first period of time. If the first SRS does not perform partial frequency listening and the second SRS performs partial frequency listening, the terminal may determine to transmit the second SRS for a second period of time.

Optionally, if the first SRS performs partial frequency monitoring and the second SRS also performs partial frequency monitoring, or the first SRS does not perform partial frequency monitoring and the second SRS does not perform partial frequency monitoring, the terminal may determine to transmit the first SRS in the first time period according to any one or more of the conditions 1 to 4.

For example, assuming that the configuration information of the first SRS resource includes that the first SRS performs partial frequency listening, and the configuration information of the second SRS resource includes that the second SRS does not perform partial frequency listening, the terminal may determine to transmit the first SRS for a first time period.

In a possible implementation manner, the above conditions 1 to 5 may each be used alone as a criterion for priority, may be used in any combination as a criterion for priority, or may be used in combination with other conditions as a criterion for priority. The above-mentioned condition 1 to condition 5 may have priority. Assuming that the terminal determines that the results of the at least two conditions are different in the conditions 1 to 5, the terminal may determine to transmit the first SRS in the first time period or determine to transmit the second SRS in the second time period according to the priorities of the conditions 1 to 5.

For example, the terminal determines to transmit the first SRS in the first time period according to the condition 1, and the terminal determines to transmit the second SRS in the second time period according to the condition 2, and since the results determined by the terminal according to the

conditions

1 and 2 are different, the terminal may select the result determined by the condition with the higher priority according to the priorities of the

conditions

1 and 2. Assuming that the priority of the condition 1 is higher than that of the condition 2, the terminal may determine to transmit the first SRS for the first period.

It should be noted that the priorities of condition 1 to condition 5 may be predefined, configured by higher layer parameters, or different in different time periods.

In one possible implementation, the priority of condition 1 is greater than the priority of conditions 2-5. That is, when the number of time units occupied by the first SRS resource and the second SRS resource is different, the priority of the two SRS resources is determined according to the condition 1; and when the number of time units occupied by the first SRS resource and the second SRS resource is the same, judging the priority of the two SRS resources according to the repetition factors of the first SRS resource and the second SRS resource.

Based on the above embodiment, it can be ensured that the resource with high requirement for time domain resource completes the transmission first. Resources with low requirements on time domain resources can find available time slots more quickly by a method of delaying transmission or re-triggering, so that the transmission efficiency is improved.

In one possible embodiment, the priority of condition 2 is greater than the priorities of condition 1 and conditions 3-5. That is, when the starting positions of the time units occupied by the first SRS resource and the second SRS resource are the same, the priorities of the two SRS resources are determined according to the number of the time units occupied by the first SRS resource and the second SRS resource.

Based on the above embodiment, it can be ensured that the SRS which starts to be transmitted first completes transmission first, so that the SRS which starts to be transmitted can complete transmission to the greatest extent, and the resource utilization rate is improved.

In one possible implementation, the priority of condition 3 is greater than the priority of

conditions

1, 2 and conditions 4, 5. That is, when the repetition factors of the first SRS and the second SRS are the same, the priorities of the two SRS resources are determined according to the number of time units occupied by the first SRS resource and the second SRS resource.

Based on the above embodiment, it can be ensured that the SRS with small repetition factor completes transmission first, and the portion of the SRS resource with large repetition factor overlapping with the SRS resource with small repetition factor is discarded, so that it can be ensured that the SRS resource is transmitted on a part of symbols in the SRS resource with large repetition factor, and the accuracy of channel measurement and the resource utilization rate can be effectively improved.

Based on the above scheme, when the first time period and the second time period overlap, the terminal may determine to transmit the first SRS in the first time period or to transmit the second SRS in the second time period based on the configuration information of the first SRS resource and the configuration information of the second SRS resource.

And 2, the terminal determines to transmit the first SRS in the first time period according to the configuration information of the first SRS resource set and the configuration information of the second SRS resource set. Here, the first SRS resource set includes at least the first SRS, and the second SRS resource set includes at least the second SRS.

In one example, the configuration information of the first SRS resource set may include any one or more of the following 1) to 3):

1) And the number of SRS resources included in the first SRS resource set. Wherein the first SRS resource set may include one or more SRS resources. For example, if the first SRS resource set includes SRS resource 1, SRS resource 2, and SRS resource 3, the number of SRS resources included in the first SRS resource set is regarded as 3.

2) And the total time unit number occupied by the SRS resources contained in the first SRS resource set. For example, the total number of symbols occupied by the SRS resources included in the first SRS resource set. The number of symbols occupied by the SRS resource may be regarded as the number of symbols occupied by the SRS corresponding to the SRS resource. The SRS resource may be configured to transmit an SRS, and the SRS corresponding to the SRS resource may be understood as the SRS resource configured to transmit.

Assuming that the first SRS resource set includes SRS resource 1 and SRS resource 2, where the number of symbols occupied by SRS resource 1 is 3, and the number of symbols occupied by SRS resource 2 is 1, the total number of symbols occupied by SRS resources included in the first SRS resource set is 4.

3) And a repetition factor of the SRS resources included in the first set of SRS resources. For example, the first set of SRS resources may include one or more SRS resources. The configuration information of the first set of SRS resources may include a repetition factor for each SRS resource in the first set of SRS resources. The repetition factor of the SRS resource may be regarded as the repetition factor of the SRS corresponding to the SRS resource.

In another example, the configuration information of the second SRS resource set may include any one or more of the following 1) to 3):

1) And the number of SRS resources included in the second SRS resource set. Wherein the second set of SRS resources may include one or more SRS resources. For example, if the second SRS resource set includes SRS resource 1, SRS resource 2, and SRS resource 3, the number of SRS resources included in the second SRS resource set is regarded as 3.

2) And the total time unit number occupied by the SRS resources contained in the second SRS resource set. For example, the total number of symbols occupied by the SRS resources included in the second SRS resource set. The number of symbols occupied by the SRS resource may be regarded as the number of symbols occupied by the SRS corresponding to the SRS resource. The SRS resource may be configured to transmit the SRS, and the SRS corresponding to the SRS resource may be understood as the SRS with the SRS resource configured to transmit.

Assuming that the second SRS resource set includes SRS resource 1 and SRS resource 2, where the number of symbols occupied by SRS resource 1 is 3, and the number of symbols occupied by SRS resource 2 is 1, the total number of symbols occupied by SRS resources included in the second SRS resource set is 4.

3) And a repetition factor of the SRS resources contained in the second SRS resource set. For example, the second set of SRS resources may include one or more SRS resources. The configuration information of the second SRS resource set may include a repetition factor of each SRS resource in the second SRS resource set. Note that the repetition factor of the SRS resource may be regarded as the repetition factor of the SRS corresponding to the SRS resource.

The terminal may determine to transmit the first SRS in the first time period or determine to transmit the second SRS in the second time period through any one or more of conditions 6 to 8.

Condition 6: whether the number of SRS resources included in the first SRS resource set is greater than the number of SRS resources included in the second SRS resource set.

The terminal may determine a magnitude relationship between the number of SRS resources included in the first SRS resource set and the number of SRS resources included in the second SRS resource set. If the number of SRS resources included in the first SRS resource set is greater than the number of SRS resources included in the second SRS resource set, it may be understood that the priority of the first SRS resource is higher than the priority of the second SRS resource, or it may be understood that the priority of the SRS resources included in the first SRS resource set is higher than the priority of the SRS resources included in the second SRS resource set, and the terminal may determine to transmit the first SRS in the first time period. If the number of SRS resources included in the first SRS resource set is smaller than the number of SRS resources included in the second SRS resource set, it may be understood that the priority of the first SRS resource is lower than the priority of the second SRS resource, or it may be understood that the priority of the SRS resources included in the first SRS resource set is lower than the priority of the SRS resources included in the second SRS resource set, and the terminal may determine to transmit the second SRS in the second time period.

For example, the configuration information of the first SRS resource set includes SRS resource 1, SRS resource 2, and SRS resource 3, that is, the number of SRS resources included in the first SRS resource set is 3, and the configuration information of the second SRS resource set includes SRS resource 1, that is, the number of SRS resources included in the second SRS resource set is 1. Since the number of SRS resources included in the first SRS resource set is greater than the number of SRS resources included in the second SRS resource set, the terminal may determine to transmit the first SRS in the first time period.

Condition 7: whether the total number of time units occupied by the SRS resources contained in the first SRS resource set is larger than the total number of time units contained in the second SRS resource set or not.

The terminal may determine a size relationship between the total number of time units occupied by the SRS resources included in the first SRS resource set and the total number of time units occupied by the SRS resources included in the second SRS resource set. If the total number of time units occupied by the SRS resources included in the first SRS resource set is greater than the total number of time units occupied by the SRS resources included in the second SRS resource set, the terminal may determine to transmit the first SRS in the first time period. If the total number of time units occupied by the SRS resources included in the first SRS resource set is smaller than the total number of time units occupied by the SRS resources included in the second SRS resource set, the terminal may determine to transmit in the second time period.

For example, the configuration information of the first SRS resource set includes SRS resource 1 and SRS resource 2, the number of time units occupied by SRS resource 1 is 1, the number of time units occupied by SRS resource 2 is 2, that is, the total number of time units occupied by SRS resources included in the first SRS resource set is 3. The configuration information of the second SRS resource set comprises SRS resource 1, the number of time units occupied by the SRS resource 1 is 2, namely the total number of time units occupied by the SRS resource included in the second SRS resource set is 2. Since the total number of time units occupied by the SRS resources included in the first SRS resource set is greater than the total number of time units occupied by the SRS resources included in the second SRS resource set, the terminal may determine to transmit the first SRS in the first time period.

Condition 8: whether or not a maximum value of the repetition factors of the SRS resources included in the first SRS resource set is larger than a maximum value of the repetition factors of the SRS resources included in the second SRS resource set.

The terminal may determine a magnitude relationship of a maximum value of the repetition factors of the SRS resources included in the first set of SRS resources and a maximum value of the repetition factors of the SRS resources included in the second set of SRS resources. The terminal may determine to transmit the first SRS for the first time period if a maximum value of the repetition factors of the SRS resources included in the first set of SRS resources is smaller than a maximum value of the repetition factors of the SRS resources included in the second set of SRS resources. The terminal may determine to transmit in the second period if a maximum value of the repetition factors of the SRS resources included in the first SRS resource set is greater than a maximum value of the repetition factors of the SRS resources included in the second SRS resource set.

For example, the configuration information of the first SRS resource set includes SRS resource 1 and SRS resource 2, the repetition factor of SRS resource 1 is 6, the repetition factor of SRS resource 2 is 8, that is, the maximum value of the repetition factors of SRS resources included in the first SRS resource set is 8. The configuration information of the second SRS resource set includes SRS resource 1, the repetition factor of SRS resource 1 is 12, that is, the maximum value of the repetition factors of SRS resources included in the second SRS resource set is 12. Since the maximum value of the repetition factors of the SRS resources included in the first SRS resource set is smaller than the maximum value of the repetition factors of the SRS resources included in the second SRS resource set, the terminal may determine to transmit the first SRS for the first time period.

In one possible implementation, the above condition 6 to condition 8 may also have priority. Assuming that the terminal determines that the results of the at least two conditions are different in the conditions 6 to 8, the terminal may determine to transmit the first SRS in the first time period or determine to transmit the second SRS in the second time period according to the priorities of the conditions 6 to 8.

It should be noted that the priorities of condition 6 to condition 8 may be predefined, configured by a higher layer parameter, or different at different time periods.

In one possible implementation, the priority of condition 6 is greater than the priority of condition 7 or condition 8. That is to say, when the number of SRS resources included in the first SRS resource set is the same as the number of SRS resources included in the second SRS resource set, the priority of the two SRS resources is determined according to the total number of time units occupied by the SRS resources included in the first SRS resource set and the total number of time units occupied by the SRS resources included in the second SRS resource set.

In one possible implementation, the priority of condition 7 is greater than the priorities of

conditions

6 and 8. That is to say, when the total number of time units occupied by the SRS resources included in the first SRS resource set is the same as the total number of time units occupied by the SRS resources included in the second SRS resource set, the priority of the two SRS resources is determined according to the number of the SRS resources included in the first SRS resource and the number of the SRS resources included in the second SRS resource.

In one possible implementation, the priority of condition 8 is greater than the priority of

conditions

6 and 7. That is, the maximum value of the repetition factors of the SRS resources included in the first SRS resource set is the same as the maximum value of the repetition factors of the SRS resources included in the second SRS resource set, and the priorities of the two SRS resources are determined according to the number of the SRS resources included in the first SRS resource set and the number of the SRS resources included in the second SRS resource set.

In one possible embodiment, conditions 6-8 have a higher priority than conditions 1-5. That is, the terminal transmits the first SRS for a first period of time or transmits the second SRS for a second period of time according to the configuration information of the first resource set and the configuration information of the second resource set; and when the configuration information of the first resource set is the same as the configuration information of the second resource set, the terminal determines to transmit the first SRS in the first time period or the second SRS in the second time period according to the configuration information of the first resource and the configuration information of the second resource. Note that the configuration information of the first resource set and the configuration information of the second resource set are the same, and the configuration information is used to determine the priority of the first SRS and the priority of the second SRS, and may not be all the configuration information of the first resource set and the second resource set.

In a possible implementation manner, the above conditions 1 to 8 may be combined with each other to determine the priority of the two SRS resources, or the above conditions 1 to 8 may be combined with other conditions to determine the priority of the two SRS resources, where the other conditions may be other information in the configuration information, for example, the other conditions are usage (usage) of the first SRS resource set and the second SRS resource set, or the other conditions are resource set identifiers of the first SRS resource set and the second SRS resource set, or the other conditions are resource identifiers of the first SRS resource and the second SRS resource.

Based on the embodiment, different judgment conditions can be adopted for processing in different scenes, so that the judgment result is more stable.

In one possible embodiment, the above condition 1 to condition 8 and other conditions may be predefined, or indicated by DCI, or configured by higher layer information. Alternatively, the above-described conditions 1 to 8 and other conditions are time-varying, that is, different determination conditions are adopted at different time periods. For example, every X frames, where X is a natural number. For example, X =4.

Based on the above embodiments, a greater scheduling flexibility can be provided for the base station.

Based on the above scheme, when the first time period and the second time period overlap, the terminal may determine to transmit the first SRS in the first time period or to transmit the second SRS in the second time period based on the configuration information of the first SRS resource set and the configuration information of the second SRS resource set, or determine to transmit the first SRS or the second SRS in at least one time unit where the first time period and the second time period overlap.

It is assumed that the terminal determines to transmit the first SRS for the first period of time according to any one or more of the above-described conditions 1 to 8. In one possible implementation, the terminal does not transmit the second SRS for the second time period. That is, the terminal discards the second SRS.

Based on the implementation manner, the SRS is wholly delayed to be transmitted or re-triggered, so that the situation that the terminal transmits the second SRS in a part of time units of the second time period but cannot provide complete channel information for the base station can be prevented, and further, the power consumption of the terminal is saved.

In another possible implementation manner, the terminal does not transmit the second SRS on at least one time unit where the second time period and the first time period overlap. That is, the terminal discards a portion of the second SRS that collides with the first SRS on the resource.

Based on the implementation mode, the non-overlapping part of the second SRS and the first SRS is transmitted, so that part of signals can be transmitted as soon as possible, channel measurement information is provided for the base station, and the channel measurement efficiency is improved.

Further, in a possible implementation manner, if the second SRS resource set includes a plurality of SRS resources, for other SRS resources in the second SRS resource set except for the second SRS, the terminal may transmit in a time period corresponding to the other SRS resources.

Based on the implementation mode, for the normal transmission of the resources which are not collided with other resource sets in one resource set, the method can ensure that part of the SRS in the resource set is transmitted as soon as possible, provide channel measurement information for the base station to the greatest extent, and improve the channel measurement efficiency.

In another possible implementation, if the second SRS resource set includes a plurality of SRS resources, the terminal does not transmit for other SRS resources in the second SRS resource set except for the second SRS.

Based on the implementation mode, the SRS resource set is wholly delayed to be sent or is triggered again, so that the condition that the terminal partially sends the SRS resource set but cannot provide complete channel information for the base station can be prevented, and further the power consumption of the terminal is saved.

It should be noted that, if the time periods corresponding to the other SRS resources included in the second SRS resource set also overlap with the time periods corresponding to the SRS resources included in the first SRS resource set, the terminal may determine whether to transmit the SRS resources in the first SRS resource set or the SRS resources in the second SRS resource set in the overlapping time periods according to the method embodiment shown in fig. 3. Alternatively, if the terminal determines to transmit the first SRS in the first time period according to the above conditions 1 to 8, the terminal may determine to transmit the SRS resources in the first SRS resource set if the time periods corresponding to the other SRS resources included in the second SRS resource set also overlap with the time periods corresponding to the SRS resources included in the first SRS resource set.

In another possible implementation manner, the terminal may transmit the second SRS in the third time period. The third time period is temporally subsequent to the second time period. Assuming that the time period includes one or more time slots, a starting time slot of the one or more time slots included in the third time period is temporally located after an ending time slot of the one or more time slots included in the second time period. For example, the second period includes one slot and the third period includes one slot, then the third period includes one slot that is temporally subsequent to the one slot included in the second period.

Assuming that the time period includes one or more symbols, a starting symbol of the one or more symbols included in the third time period is located after an ending symbol of the one or more symbols included in the second time period in a time domain. For example, the second time period includes a symbol a and a symbol b, the symbol b being located after the symbol a in the time domain, and the third time period includes a symbol c and a symbol d, the symbol d being located after the symbol c in the time domain. Then symbol c is located after symbol b in the time domain.

In one example, the third time period may be the time period that is temporally closest to the second time period. A time period is assumed to include one or more time slots. Assuming that the second period is a slot a and the third period is a slot b, referring to fig. 4, the slot b is immediately adjacent to the slot a in the time domain and the slot b is located after the slot a in the time domain. That is, the terminal may transmit the second SRS in the slot b.

It is assumed that a time period includes one or more symbols. It is assumed that the second time period includes a symbol a and a symbol b, the symbol b being located after the symbol a in the time domain, and the third time period includes a symbol c and a symbol d, the symbol d being located after the symbol c in the time domain. Referring to fig. 5, the third period includes a symbol c immediately adjacent in time domain to a symbol b included in the second period, and the symbol c is located after the symbol b in time domain. That is, the terminal may transmit the second SRS in the symbol c and the symbol d.

Based on the above scheme, when the first time period and the second time period overlap, the terminal transmits the first SRS in the first time period and transmits the second SRS in the third time period, and the second SRS can be transmitted with the least time delay without discarding the second SRS, so that the possibility of channel measurement information loss is reduced, and complete channel measurement based on the first SRS and the second SRS is completed as soon as possible.

In another example, the third time period can be an available time period of the second SRS that is temporally closest to the second time period. A time period is assumed to include one or more time slots. It is assumed that the second period is a time slot a and the third period is a time slot b. Referring to fig. 6, a slot closest to the slot a included in the second time segment is a slot c, but since the slot c is not an available slot of the second SRS, for example, the slot c is a downlink slot, or the slot c is a flexible slot and the number of uplink symbols included in the slot c does not meet the requirement of the second SRS resource set on the uplink symbols, the slot b included in the third time segment is located in the first slot after the slot c in the time domain. That is, slot b is the closest available slot for the second SRS to slot a. That is, the terminal may transmit the second SRS in the slot b.

It should be noted that the SRS available period or the SRS resource available period in the present application is an available period of an SRS resource set including the SRS resource, for example, an available slot of the SRS resource set.

It is assumed that the time period includes one or more symbols. It is assumed that the second time period comprises a symbol a and a symbol b, the symbol b being located after the symbol a in the time domain, and the third time period comprises a symbol c and a symbol d, the symbol d being located after the symbol c in the time domain. Referring to fig. 7, a symbol closest to the symbol b included in the second period is a symbol e, but since the symbol e is not an available symbol of the second SRS, for example, the symbol e is a downlink symbol, the symbol c included in the third period is a first uplink symbol located after the symbol e in a time domain. That is, symbol c is an available symbol of the second SRS that is closest to symbol b. That is, the terminal transmits the second SRS at symbol c and symbol d.

Based on the above scheme, when the first time period and the second time period overlap, the terminal may transmit the first SRS in the first time period and the second SRS in the third time period, and since the third time period is an available time period of the second SRS closest to the second time period, the terminal may transmit the second SRS in the available time period of the second SRS while not discarding the second SRS and transmitting the second SRS with the least delay, thereby reducing the possibility of channel measurement information loss, and completing complete channel measurement based on the first SRS and the second SRS as soon as possible.

Alternatively, the terminal may determine to transmit the second SRS resource in the third time period, or the terminal may determine to transmit the second SRS resource discarded on a symbol where the second SRS resource overlaps with the first SRS resource in the third time period, or the terminal may determine to transmit all SRS resources included in the second SRS resource set in the third time period.

It is assumed that the terminal determines to transmit the first SRS for the first period of time according to any one or more of the above-described conditions 1 to 8. In one possible implementation, it is assumed that the second set of SRS resources includes one or more SRS resources including the second SRS resource. If the second SRS resource set corresponds to the fourth time period, the terminal does not transmit one or more SRSs corresponding to one or more SRS resources included in the second SRS resource set during the fourth time period. The fourth period of time includes the second period of time, or the fourth period of time is the second period of time.

Optionally, the terminal may transmit one or more SRSs corresponding to one or more SRS resources included in the second SRS resource set in a fifth time period. The fifth time period temporally follows the fourth time period. The relationship between the fifth time period and the fourth time period in the time domain may refer to the relationship between the third time period and the second time period in the time domain, which is not described herein again.

In one example, the fifth time period is the time period closest in time to the fourth time period. The time period closest to the fourth time period may refer to the foregoing description of the time period closest to the second time period, and is not described herein again.

For another example, the fifth time period is an available time period for the one or more SRSs that is closest in time domain to the fourth time period. For the available time period of one or more SRSs closest to the fourth time period, reference may be made to the foregoing description of the available time period of the second SRS closest to the second time period, and details are not repeated here.

In yet another example, when the second time period overlaps with the first time period, the second time period is not an available slot for the second SRS resource or the second set of SRS resources, and thus the third time period is an available slot for the second SRS resource or the second set of SRS resources. That is, when an SRS is not transmitted in one slot when calculating an available slot, whether the slot is an available slot for the SRS does not need to be considered whether to collide with other SRS. When an SRS is transmitted on a slot, whether the slot is an available slot for the SRS needs to be considered for collisions with other SRS.

Optionally, when the resource type of the second SRS resource set is antenna switching, one or more SRS resource sets related to the second SRS resource set are delayed from being transmitted or discarded all together. The one or more SRS resource sets related to the second SRS resource set refer to the one or more SRS resource sets and the second SRS resource set both used for antenna switching and both used for the same antenna configuration (xTyR). For example, the second SRS resource set and the at least one third SRS resource set are related, the resource types of the second SRS resource set and the at least one third SRS resource set are both antenna switching, and the second SRS resource set and the at least one third SRS resource set together complete the 1T4R measurement.

Based on the scheme, the loss of part of downlink channel information in antenna switching can be prevented, or the same resource set is prevented from being repeatedly sent, so that the power consumption of the terminal can be reduced.

The above-mentioned scheme provided by the embodiment of the present application can also be used in a case where a sixth time period corresponding to the first information overlaps with a seventh time period corresponding to the second information. The first information may be an uplink signal, a downlink signal, uplink data, or downlink data. Similarly, the second information may be an uplink signal, a downlink signal, downlink data, or uplink data. The uplink data may be a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH).

For example, if the sixth time period of the first uplink data and the seventh time period of the second uplink data overlap, the terminal may determine to transmit the first uplink data in the sixth time period or to transmit the second uplink data in the seventh time period according to the configuration information of the first uplink data and the configuration information of the second uplink data.

Fig. 8 to 9 are schematic structural diagrams of possible communication apparatuses provided in an embodiment of the present application. These communication devices can be used to implement the operations of the base station and/or the terminal in the above method embodiments, and therefore can also implement the beneficial effects of the above method embodiments.

As shown in fig. 8, the communication device 800 includes a processing unit 810 and a transceiving unit 820. The communication apparatus 800 is used for implementing the operations of the base station and/or the terminal in the above-described method embodiment shown in fig. 3.

When the communication apparatus 800 is used to implement the operation of the terminal shown in fig. 3: a transceiving unit 820, configured to obtain configuration information. A processing unit 810 configured to determine to transmit the first reference signal in the first time period according to the configuration information. Wherein the configuration information configures a first set of reference signal resources and a second set of reference signal resources. The first set of reference signal resources includes at least first reference signal resources and the second set of reference signal resources includes at least second reference signal resources. The first reference signal resource corresponds to a first time period and the second reference signal resource corresponds to a second time period. The first time period is used for transmitting a first reference signal, and the second time period is used for transmitting a second reference signal. Wherein the first time period and the second time period overlap.

In one design, the transceiver unit 820 is also used to obtain the first information. The first information herein is used to determine that the first reference signal resource corresponds to a first time period and is used to determine that the second reference signal resource corresponds to a second time period. Alternatively, the transceiving unit 820 is further configured to obtain the first information and the second information. The first information is used to determine that the first reference signal resource corresponds to a first time period, and the second information is used to determine that the second reference signal resource corresponds to a second time period.

In one design, processing unit 810 is further configured to determine that any one or more of the following is satisfied, transmit the first reference signal for the first time period: the number of time units occupied by the first reference signal is greater than the number of time units occupied by the second reference signal. Alternatively, the starting position of the time unit occupied by the first reference signal is before the starting position of the time unit occupied by the second reference signal. Alternatively, the repetition factor of the first reference signal is smaller than the repetition factor of the second reference signal. Or the frequency hopping times of the first reference signal are smaller than the frequency hopping times of the second reference signal. Or, the first reference signal performs partial frequency monitoring, and the second reference signal does not perform partial frequency monitoring.

In one design, processing unit 810 is further configured to determine that any one or more of the following is satisfied, transmit the first reference signal for the first time period: the number of reference signal resources contained in the first reference signal resource set is greater than the number of reference signal resources contained in the second reference signal resource set. Or the total time unit number occupied by the reference signal resources contained in the first reference signal resource set is greater than the total time unit number occupied by the reference signal resources contained in the second reference signal resource set. Alternatively, a maximum value of the repetition factors of the reference signal resources contained in the first set of reference signal resources is smaller than a maximum value of the repetition factors of the reference signal resources contained in the second set of reference signal resources.

In one design, the transceiver unit 820 is further configured to not transmit the second reference signal for the second time period. Alternatively, the transceiving unit 820 is further configured to not transmit the second reference signal in at least one time unit where the second time period overlaps with the first time period.

In one design, the transceiver unit 820 is further configured to transmit a second reference signal in a third time period. The third time period is temporally subsequent to the second time period.

In one design, a second set of reference signal resources is used to configure one or more reference signals. Where the one or more reference signals include a second reference signal. Wherein the second set of reference signal resources corresponds to a fourth time period, the fourth time period comprising the second time period. The transceiving unit 820 is further configured to not transmit one or more reference signals during a fourth time period.

In one design, the transceiver unit 820 is further configured to transmit one or more reference signals over a fifth time period, which is located after the fourth time period in the time domain.

When the communication apparatus 800 is used to implement the operation of the base station shown in fig. 3: a transceiving unit 820, configured to send configuration information by the network device. The processing unit 810 is configured to determine to receive the first reference signal in the first time period according to the configuration information. Wherein the configuration information configures a first set of reference signal resources and a second set of reference signal resources. The first set of reference signal resources includes at least first reference signal resources and the second set of reference signal resources includes at least second reference signal resources. The first reference signal resource corresponds to a first time period and the second reference signal resource corresponds to a second time period. The first time period is used for transmitting a first reference signal, and the second time period is used for transmitting a second reference signal. Wherein the first time period and the second time period overlap.

In one design, transceiver unit 820 may also be configured to transmit the first information. The first information herein is used to determine that the first reference signal resource corresponds to a first time period and is used to determine that the second reference signal resource corresponds to a second time period. Alternatively, the transceiving unit 820 is further configured to transmit the first information and the second information. The first information is used to determine that the first reference signal resource corresponds to a first time period, and the second information is used to determine that the second reference signal resource corresponds to a second time period.

In one design, processing unit 810 receives a first reference signal for a first time period upon determining that any one or more of: the number of time units occupied by the first reference signal is greater than the number of time units occupied by the second reference signal. Alternatively, the starting position of the time unit occupied by the first reference signal is before the starting position of the time unit occupied by the second reference signal. Alternatively, the repetition factor of the first reference signal is smaller than the repetition factor of the second reference signal. Or the frequency hopping times of the first reference signal are smaller than the frequency hopping times of the second reference signal. Or, the first reference signal performs partial frequency monitoring, and the second reference signal does not perform partial frequency monitoring.

In one design, processing unit 810 is further configured to determine that any one or more of the following is satisfied, receive the first reference signal for the first time period: the number of reference signal resources contained in the first reference signal resource set is greater than the number of reference signal resources contained in the second reference signal resource set. Or the total number of time units occupied by the reference signal resources contained in the first reference signal resource set is greater than the total number of time units occupied by the reference signal resources contained in the second reference signal resource set. Alternatively, a maximum value of the repetition factors of the reference signal resources contained in the first set of reference signal resources is smaller than a maximum value of the repetition factors of the reference signal resources contained in the second set of reference signal resources.

In one design, the transceiver unit 820 is further configured to not receive the second reference signal during the second time period. Alternatively, the transceiving unit 820 is further configured to not receive the second reference signal for at least one time unit in which the second time period overlaps with the first time period.

In one design, the transceiver unit 820 is further configured to receive the second reference signal in a third time period, which is located after the second time period in the time domain.

In one design, a second set of reference signal resources is used to configure one or more reference signals. Where the one or more reference signals include a second reference signal. Wherein the second set of reference signal resources corresponds to a fourth time period, the fourth time period comprising the second time period. The transceiving unit 820 is further configured to not receive one or more reference signals during a fourth time period. The one or more reference signals are not received over a fourth time period.

In one design, the transceiver unit 820 is further configured to receive one or more reference signals over a fifth time period, which is located after the fourth time period in the time domain.

More details about the processing unit 810 and the transceiver 820 can be directly obtained by referring to the related description in the embodiment of the method shown in fig. 3.

As shown in fig. 9, the communication device 900 includes a processor 910 and an interface circuit 920. The processor 910 and the interface circuit 920 are coupled to each other. It is understood that the interface circuit 920 may be a transceiver or an input-output interface. Optionally, the communication device 900 may further include a memory 930 for storing instructions to be executed by the processor 910 or for storing input data required by the processor 910 to execute the instructions or for storing data generated by the processor 910 after executing the instructions.

When the communication device 900 is configured to implement the method shown in fig. 3, the processor 910 is configured to implement the functions of the processing unit 810, and the interface circuit 920 is configured to implement the functions of the transceiving unit 820.

When the communication device is a chip applied to a terminal, the terminal chip realizes the functions of the terminal in the method embodiment. The terminal chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal, and the information is sent to the terminal by the base station; alternatively, the terminal chip sends information to other modules in the terminal (such as a radio frequency module or an antenna), and the information is sent by the terminal to the base station.

When the communication device is a module applied to a base station, the base station module implements the functions of the base station in the above method embodiments. The base station module receives information from other modules (such as a radio frequency module or an antenna) in the base station, and the information is sent to the base station by the terminal; alternatively, the base station module sends information to other modules in the base station (such as a radio frequency module or an antenna), and the information is sent by the base station to the terminal. The base station module may be a baseband chip of a base station, and may also be a DU or other modules, where the DU may be a DU under an open radio access network (O-RAN) architecture.

Fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present application. Terminal 1000 can include a baseband processing module 1010, a radio frequency processing module 1020, and an antenna 1030. The baseband processing module 1010 is configured to process a baseband signal, and may specifically include demodulating and decoding a downlink signal and encoding and modulating an uplink signal. The baseband processing module 1010 may be specifically a baseband chip. The rf processing module 1020 is configured to process the rf signals, and specifically may include performing analog domain filtering on the uplink and downlink signals and performing power amplification on the uplink and downlink signals. That is, the rf processing module 1020 includes the analog domain filter described in the above method embodiments. The rf processing module 1020 may be an rf chip. The antenna 1030 is used for receiving radio waves from the space, converting the radio waves into downlink signals, and transmitting the downlink signals to the rf processing module 1020, or converting uplink signals from the rf processing module 1020 into radio waves and transmitting the radio waves into the space.

It is understood that the Processor in the embodiments of the present Application may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. The general purpose processor may be a microprocessor, but may be any conventional processor.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in random access memory, flash memory, read only memory, programmable read only memory, erasable programmable read only memory, electrically erasable programmable read only memory, registers, a hard disk, a removable hard disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a base station or a terminal. Of course, the processor and the storage medium may reside as discrete components in a base station or terminal.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network appliance, a user device, or other programmable apparatus. The computer program or instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program or instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. 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. that integrates one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; optical media such as digital video disks; but also semiconductor media such as solid state disks. The computer readable storage medium may be volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

In various embodiments of the present application, unless otherwise specified or conflicting, terms and/or descriptions between different embodiments have consistency and may be mutually referenced, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logical relationships.

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, a and/or B, which may indicate: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. In the description of the text of the present application, the character "/" generally indicates that the former and latter associated objects are in an "or" relationship; in the formula of the present application, the character "/" indicates that the preceding and following related objects are in a relationship of "division". "including at least one of a, B, and C" may mean: comprises A; comprises B; comprises C; comprises A and B; comprises A and C; comprises B and C; including A, B and C.

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application. The sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic.

Claims

1. A method for transmitting a reference signal, comprising:

acquiring configuration information, wherein the configuration information configures a first reference signal resource set and a second reference signal resource set, the first reference signal resource set at least comprises a first reference signal resource, the second reference signal resource set at least comprises a second reference signal resource, the first reference signal resource corresponds to a first time period, the second reference signal resource corresponds to a second time period, the first time period is used for sending a first reference signal, the second time period is used for sending a second reference signal, and the first time period and the second time period are overlapped;

determining to transmit the first reference signal in the first time period according to the configuration information.

2. The method of claim 1, further comprising:

acquiring first information, wherein the first information is used for determining that the first reference signal resource corresponds to the first time period and determining that the second reference signal resource corresponds to the second time period; or alternatively

Acquiring first information and second information, wherein the first information is used for determining that the first reference signal resource corresponds to the first time period, and the second information is used for determining that the second reference signal resource corresponds to the second time period.

3. The method according to claim 1 or 2, characterized in that:

the configuration information includes configuration information of the first reference signal resource and configuration information of the second reference signal resource, and the first reference signal is determined to be transmitted in the first time period according to the configuration information of the first reference signal resource and the configuration information of the second reference signal resource; or

The configuration information includes configuration information of the first reference signal resource set and configuration information of the second reference signal resource set, and the first reference signal is determined to be transmitted in the first time period according to the configuration information of the first reference signal resource set and the configuration information of the second reference signal resource set.

4. The method according to any of claims 1 to 3, wherein the configuration information comprises configuration information of the first reference signal resource and configuration information of the second reference signal resource;

the configuration information of the first reference signal resource comprises any one or more of the following information: the number of time units occupied by the first reference signal, the starting position of the time unit occupied by the first reference signal, the repetition factor of the first reference signal, the frequency hopping times of the first reference signal, and whether the first reference signal supports partial frequency monitoring;

the configuration information of the second reference signal resource includes any one or more of the following information: the number of time units occupied by the second reference signal, the starting position of the time unit occupied by the second reference signal, the repetition factor of the second reference signal, the frequency hopping times of the second reference signal, and whether the second reference signal supports partial frequency monitoring.

5. The method according to any one of claims 1 to 4, wherein the first reference signal is transmitted during the first time period if any one or more of the following conditions are met:

the number of time units occupied by the first reference signal is greater than the number of time units occupied by the second reference signal;

the starting position of the time unit occupied by the first reference signal is before the starting position of the time unit occupied by the second reference signal;

the repetition factor of the first reference signal is less than the repetition factor of the second reference signal;

the frequency hopping times of the first reference signal are less than the frequency hopping times of the second reference signal;

the first reference signal carries out partial frequency monitoring, and the second reference signal does not carry out partial frequency monitoring.

6. The method according to any of claims 1 to 3, wherein the configuration information comprises configuration information of the first set of reference signal resources and configuration information of the second set of reference signal resources;

the configuration information of the first set of reference signal resources comprises any one or more of the following information: the number of reference signal resources contained in the first reference signal resource set, the total number of time units occupied by the reference signal resources contained in the first reference signal resource set, and the repetition factor of the reference signal resources contained in the first reference signal resource set;

the configuration information of the second set of reference signal resources comprises any one or more of the following information: the number of reference signal resources contained in the second reference signal resource set, the total number of time units occupied by the reference signal resources contained in the second reference signal resource set, and the repetition factor of the reference signal resources contained in the second reference signal resource set.

7. The method according to any one of claims 1 to 3 or 6, wherein the first reference signal is transmitted during the first time period if any one or more of:

the number of reference signal resources contained in the first reference signal resource set is greater than the number of reference signal resources contained in the second reference signal resource set;

the total time unit number occupied by the reference signal resources contained in the first reference signal resource set is greater than the total time unit number occupied by the reference signal resources contained in the second reference signal resource set;

a maximum value of repetition factors for reference signal resources contained in the first set of reference signal resources is less than a maximum value of repetition factors for reference signal resources contained in the second set of reference signal resources.

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

not transmitting the second reference signal for the second time period; or,

not transmitting the second reference signal over at least one time unit in which the second time period overlaps with the first time period.

9. The method of claim 8, further comprising:

transmitting the second reference signal for a third time period, the third time period being subsequent in time domain to the second time period.

10. The method of claim 9, wherein the third time period is a time period temporally closest to the second time period; or, the third time period is an available time period of the second reference signal closest to the second time period.

11. A method for transmitting a reference signal, comprising:

transmitting configuration information, the configuration information configuring a first set of reference signal resources and a second set of reference signal resources, the first set of reference signal resources including at least a first reference signal resource, the second set of reference signal resources including at least a second reference signal resource, the first reference signal resource corresponding to a first time period, the second reference signal resource corresponding to a second time period, the first time period being used for transmitting a first reference signal, the second time period being used for transmitting a second reference signal, wherein the first time period and the second time period overlap;

determining to receive the first reference signal in the first time period according to the configuration information.

12. The method of claim 11, further comprising:

sending first information, wherein the first information is used for determining that the first reference signal resource corresponds to the first time period and determining that the second reference signal resource corresponds to the second time period; or

And sending first information and second information, wherein the first information is used for determining that the first reference signal resource corresponds to the first time period, and the second information is used for determining that the second reference signal resource corresponds to the second time period.

13. The method according to claim 11 or 12, characterized in that:

14. The method according to any of claims 11 to 13, wherein the configuration information comprises configuration information of the first reference signal resource and configuration information of the second reference signal resource;

the configuration information of the second reference signal resource comprises any one or more of the following information: the number of time units occupied by the second reference signal, the starting position of the time unit occupied by the second reference signal, the repetition factor of the second reference signal, the frequency hopping times of the second reference signal, and whether the second reference signal supports partial frequency monitoring.

15. The method according to any one of claims 11 to 14, wherein the first reference signal is received during the first time period if any one or more of:

16. The method according to any of claims 11 to 13, wherein the configuration information comprises configuration information of the first set of reference signal resources and configuration information of the second set of reference signal resources;

17. The method according to any one of claims 11 to 13 or 16, wherein the first reference signal is received during the first time period if any one or more of:

18. The method of any one of claims 11 to 17, further comprising:

receiving the second reference signal during the second time period; or,

not receiving the second reference signal over at least one time unit in which the second time period overlaps with the first time period.

19. The method of claim 18, further comprising:

receiving the second reference signal for a third time period, the third time period being temporally subsequent to the second time period.

20. The method of claim 19, wherein the third time period is a time period temporally closest to the second time period; or, the third time period is an available time period of the second reference signal closest to the second time period.

21. A communications apparatus, comprising: a processing unit and a transceiver unit;

the transceiver unit is configured to acquire configuration information, where the configuration information configures a first reference signal resource set and a second reference signal resource set, the first reference signal resource set at least includes a first reference signal resource, the second reference signal resource set at least includes a second reference signal resource, the first reference signal resource corresponds to a first time period, the second reference signal resource corresponds to a second time period, the first time period is used for sending a first reference signal, the second time period is used for sending a second reference signal, and the first time period and the second time period overlap each other;

the processing unit is configured to determine to transmit the first reference signal in the first time period according to the configuration information.

22. The apparatus of claim 21, wherein the transceiver unit is further configured to:

acquiring first information, wherein the first information is used for determining that the first reference signal resource corresponds to the first time period and determining that the second reference signal resource corresponds to the second time period; or

23. The apparatus of claim 21 or 22, wherein:

24. The apparatus according to any of claims 21 to 23, wherein the configuration information comprises configuration information of the first reference signal resource and configuration information of the second reference signal resource;

the configuration information of the first reference signal resource includes any one or more of the following information: the number of time units occupied by the first reference signal, the starting position of the time unit occupied by the first reference signal, the repetition factor of the first reference signal, the frequency hopping times of the first reference signal, and whether the first reference signal supports partial frequency monitoring;

25. The apparatus according to any of claims 21 to 24, wherein the processing unit is further configured to determine that any one or more of the following is satisfied, and to transmit the first reference signal during the first time period:

26. The apparatus of any one of claims 21 to 23, wherein the configuration information comprises configuration information of the first set of reference signal resources and configuration information of the second set of reference signal resources;

the configuration information of the second set of reference signal resources comprises any one or more of the following information: the number of reference signal resources included in the second reference signal resource set, the total number of time units occupied by the reference signal resources included in the second reference signal resource set, and the repetition factor of the reference signal resources included in the second reference signal resource set.

27. The method of any of claims 21-23 or 26, wherein the processing unit is further configured to determine that any one or more of the following is satisfied, and to transmit the first reference signal during the first time period:

28. The apparatus according to any of claims 21 to 27, wherein the transceiver unit is further configured to:

transmitting the second reference signal in the second time period; or,

29. The apparatus of claim 28, wherein the transceiver unit is further configured to:

transmitting the second reference signal for a third time period, the third time period being temporally subsequent to the second time period.

30. A communications apparatus, comprising: a processing unit and a transceiving unit;

the transceiver unit is configured to send configuration information, where the configuration information configures a first reference signal resource set and a second reference signal resource set, the first reference signal resource set at least includes a first reference signal resource, the second reference signal resource set at least includes a second reference signal resource, the first reference signal resource corresponds to a first time period, the second reference signal resource corresponds to a second time period, the first time period is used for sending a first reference signal, the second time period is used for sending a second reference signal, and the first time period and the second time period overlap each other;

the processing unit is configured to determine to receive the first reference signal in the first time period according to the configuration information.

31. The apparatus of claim 30, wherein the transceiver unit is further configured to:

32. The apparatus of claim 30 or 31, wherein:

33. The apparatus of any one of claims 30 to 32, wherein the configuration information comprises configuration information of the first reference signal resource and configuration information of the second reference signal resource;

34. The apparatus according to any one of claims 30 to 33, wherein the processing unit is further configured to determine that any one or more of the following is satisfied, and to receive the first reference signal during the first time period:

35. The apparatus of any one of claims 30 to 32, wherein the configuration information comprises configuration information of the first set of reference signal resources and configuration information of the second set of reference signal resources;

36. The apparatus according to any one of claims 30 to 32 or 35, wherein the processing unit is further configured to determine that any one or more of the following is satisfied, and to receive the first reference signal during the first time period:

37. The apparatus according to any of claims 30 to 36, wherein the transceiver unit is further configured to:

receiving the second reference signal during the second time period; or,

38. The apparatus of claim 37, wherein the transceiver unit is further configured to:

receiving the second reference signal at a third time period, the third time period being temporally subsequent to the second time period.

39. The apparatus of claim 38, wherein the third time period is the time period that is temporally closest to the second time period; or, the third time period is an available time period of the second reference signal closest to the second time period.

40. A communications apparatus comprising a processor that executes a computer program stored in memory to cause the apparatus to perform the method of any one of claims 1 to 10.

41. A communications apparatus comprising a processor executing a computer program stored in a memory to cause the apparatus to perform the method of any one of claims 11 to 20.

42. A computer-readable storage medium, in which a computer program or instructions are stored which, when executed on a computer, carry out the method according to any one of claims 1 to 10.

43. A computer-readable storage medium, in which a computer program or instructions are stored which, when executed on a computer, implement the method of any one of claims 11 to 20.

44. A computer program product comprising computer executable instructions which, when run on a computer, cause the method of any one of claims 1 to 10 to be performed; or the method of any one of claims 11 to 20 is performed.