CN114765508B

CN114765508B - Aperiodic SRS transmission method and equipment

Info

Publication number: CN114765508B
Application number: CN202110056550.5A
Authority: CN
Inventors: 施源
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2024-03-08
Anticipated expiration: 2041-01-15
Also published as: CN114765508A; WO2022152240A1

Abstract

The embodiment of the application discloses a transmission method and equipment of an aperiodic SRS, which can solve the problem of high signaling overhead for triggering the transmission of the aperiodic SRS. The method may include: a terminal receives DCI, wherein the format of the DCI comprises DCI 2-3, and the DCI is used for activating aperiodic SRS on at least one carrier of at least one terminal; and sending the aperiodic SRS.

Description

Aperiodic SRS transmission method and equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method and equipment for transmitting an aperiodic sounding reference signal (Sounding Reference Signal, SRS), wherein the equipment can comprise a terminal, network side equipment, an aperiodic SRS transmission device and the like.

Background

The aperiodic SRS is typically triggered to be transmitted by downlink control information (Downlink Control Information, DCI). If a plurality of carriers or a plurality of terminals need to activate the aperiodic SRS, the plurality of carriers or the plurality of terminals need to transmit DCI respectively to activate the aperiodic SRS, which results in high DCI overhead and further may cause congestion of a physical downlink control channel (Physical Downlink Control Channel, PDCCH) to affect the performance of the communication system.

Disclosure of Invention

The embodiment of the application provides a transmission method and equipment of an aperiodic SRS, which can solve the problem of high signaling overhead for triggering the transmission of the aperiodic SRS.

In a first aspect, a method for transmitting an aperiodic SRS is provided, where the method includes: a terminal receives DCI, wherein the format of the DCI comprises DCI 2-3, and the DCI is used for activating aperiodic SRS on at least one carrier of at least one terminal; and sending the aperiodic SRS.

In a second aspect, there is provided a method for transmitting an aperiodic SRS, the method comprising: the network side equipment transmits DCI, wherein the format of the DCI comprises DCI 2-3, and the DCI is used for activating aperiodic SRS on at least one carrier of at least one terminal; and receiving the aperiodic SRS.

In a third aspect, an apparatus for transmitting an aperiodic SRS is provided, including: a receiving module, configured to receive DCI, where a format of the DCI includes DCI 2-3, where the DCI is used to activate an aperiodic SRS on at least one carrier of at least one terminal; and the sending module is used for sending the aperiodic SRS.

In a fourth aspect, an aperiodic SRS transmission device is provided, including: a transmitting module, configured to transmit DCI, where a format of the DCI includes DCI 2-3, where the DCI is used to activate an aperiodic SRS on at least one carrier of at least one terminal; and the receiving module is used for receiving the aperiodic SRS.

In a fifth aspect, there is provided a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which program or instruction when executed by the processor implements the method according to the first aspect.

In a sixth aspect, a network side device is provided, the network side device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the method according to the second aspect when executed by the processor.

In a seventh aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, implement the method according to the first aspect or implement the method according to the second aspect.

In an eighth aspect, there is provided a computer program product comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the method according to the first aspect or implementing the method according to the second aspect.

In a ninth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.

In the embodiment of the application, the DCI received by the terminal can activate the aperiodic SRS on at least one carrier of at least one terminal at the same time, and the network side equipment does not need to send the DCI for each carrier and each terminal respectively, thereby being beneficial to reducing the cost of the DCI, reducing the PDCCH congestion and improving the performance of a communication system.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a transmission method of an aperiodic SRS according to an embodiment of the present application;

fig. 3 is a schematic flowchart of a transmission method of an aperiodic SRS according to an embodiment of the present application;

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

fig. 5 is a schematic structural diagram of an aperiodic SRS transmission device according to an embodiment of the present application;

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

fig. 7 is a schematic structural view of a terminal according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a schematic diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be called a terminal Device or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a notebook (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and the Wearable Device includes: a bracelet, earphone, glasses, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a next generation node B (gNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

The following describes in detail, with reference to the accompanying drawings, a specific embodiment and an application scenario thereof, a transmission method and a device of an aperiodic sounding reference signal (Sounding Reference Signal, SRS) provided by the embodiment of the present application.

As shown in fig. 2, the embodiment of the present application provides a method 200 for transmitting an aperiodic SRS, which may be performed by a terminal, in other words, by software or hardware installed in the terminal, and includes the following steps.

S202: the terminals receive downlink control information (Downlink Control Information, DCI), the format of which comprises DCI 2-3 for activating aperiodic SRS on at least one carrier of at least one terminal.

The DCI referred to in each embodiment of the present application refers to DCI 2 to 3 unless otherwise specified.

In general, DCI 2-3 is used for carrier switching and/or SRS power control, and embodiments herein provide for activating aperiodic SRS on at least one carrier of at least one terminal by reusing DCI 2-3. For example, aperiodic SRS on multiple carriers of one terminal are activated simultaneously; or simultaneously activating aperiodic SRS on one carrier of a plurality of terminals; or simultaneously activate aperiodic SRS on multiple carriers of multiple terminals.

In this embodiment, DCI received by a terminal is used to activate aperiodic SRS on at least one carrier of at least one terminal, and implementation of the above-mentioned "at least one carrier" and "at least one terminal" will be exemplified below.

In one example, the DCI includes a type a (type a), the DCI includes at least one transport block (block), and the DCI is used to activate an aperiodic SRS on at least one carrier corresponding to each of the at least one transport block.

In this example, each transport block may correspond to one terminal, and at least one transport block included in the DCI corresponds to at least one terminal. Optionally, the DCI includes a plurality of transport blocks, where the plurality of transport blocks and the plurality of terminals are in one-to-one correspondence.

In this example, each transport block includes at least one transmit power control (Transmit Power Control, TPC) command field, which is typically at least one carrier for a terminal. Optionally, the transport block includes a plurality of TPC command fields, where the plurality of TPC command fields are in one-to-one correspondence with a plurality of carriers of the same terminal.

In another example, the DCI includes a type B (type B), the DCI includes at least one transport block, and the DCI is used to activate an aperiodic SRS on one carrier corresponding to each of the at least one transport block.

In this example, the DCI includes at least one transport block, where the at least one transport block corresponds to one terminal, and the DCI includes at least one transport block corresponding to the at least one terminal. For example, the DCI includes 4 transport blocks, the first 2 transport blocks of the 4 transport blocks corresponding to one terminal and the last 2 transport blocks corresponding to another terminal.

In this example, each transport block includes one TPC command field, which is typically one carrier of the corresponding terminal.

S204: and sending the aperiodic SRS.

Alternatively, this step may transmit the aperiodic SRS on an active BandWidth Part (BWP) of the terminal. The active BWP may be BWP within any one of the at least one carrier indicated by the DCI in S202; but also an active BWP in the carrier currently used by the terminal.

According to the transmission method of the aperiodic SRS, the aperiodic SRS on at least one carrier of at least one terminal can be activated simultaneously by the DCI received by the terminal, network side equipment does not need to send DCI for each carrier and each terminal respectively, the DCI overhead is reduced, the PDCCH congestion is reduced, and the performance of a communication system is improved.

Optionally, DCI mentioned in various embodiments of the present application is used for non-carrier switching and/or aperiodic SRS activation for carrier switching. For example, DCI is used for aperiodic SRS activation for non-carrier switching; the DCI is used for aperiodic SRS activation of carrier switching; the DCI is used for non-carrier switching and non-periodic SRS activation for carrier switching, specifically, for example, a part of transport blocks in the DCI are used for non-periodic SRS activation for non-carrier switching and another part of transport blocks are used for non-periodic SRS activation for carrier switching.

Alternatively, aperiodic SRS configured on the same carrier is the same purpose. The aperiodic SRS to be arranged on the carrier for the aperiodic handover may be an SRS to be arranged for any purpose (use). For example, only one purpose of aperiodic SRS is configured on one carrier, and the purpose may be antenna switching or the like.

In order for the terminal to determine that the received DCI is an aperiodic SRS activation for non-carrier switching and/or carrier switching, this embodiment may be implemented by the following several technical schemes.

In a first example, prior to S202, the terminal may further receive indication information indicating that the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching.

For example, the DCI includes a type a, where the indication information is used to indicate that the DCI corresponds to an nth sounding reference signal power control command physical downlink control channel configuration (SRS-TPC-PDCCH-Config), and N is a positive integer; wherein, when N is more than or equal to 2, the DCI is used for the aperiodic SRS activation of the non-carrier switching or the aperiodic SRS activation of the non-carrier switching and the carrier switching; in case n=1 or the indication information is not present, the DCI is used for aperiodic SRS activation for carrier switching.

In this embodiment, the SRS-TPC-PDCCH-Config is generally configured by the network side device through radio resource control (Radio Resource Control, RRC), and the 1 st SRS-TPC-PDCCH-Config is used to determine a carrier set used by the terminal for carrier switching and carriers in the carrier set. In the embodiment of the present application, any SRS-TPC-PDCCH-Config other than the 1 st SRS-TPC-PDCCH-Config may be used as the carrier set used for non-carrier switching and the carriers in the carrier set.

In this embodiment, the carriers in the carrier set configured in SRS-TPC-PDCCH-Config other than the 1 st SRS-TPC-PDCCH-Config are not cell carriers for which PUSCH is not configured. The SRS-TPC-PDCCH-Config other than the 1 st SRS-TPC-PDCCH-Config mentioned in this example may be any one of the 2 nd to 32 nd SRS-TPC-PDCCH-Config.

In this embodiment, for example, the terminal does not expect that the carrier in the carrier set configured in SRS-TPC-PDCCH-Config other than the 1 st SRS-TPC-PDCCH-Config is a PUSCH-less cell carrier.

In the second example, the DCI received by the terminal in S202 satisfies one of the following:

1) The DCI includes a first indication field for indicating the DCI for non-carrier switching and/or aperiodic SRS activation for carrier switching. For example, 1bit (bit) is added to DCI 2-3 to indicate whether the DCI is used for aperiodic SRS triggering for non-carrier switching. Specifically, for example, an indication value of "0" indicates that DCI is used for aperiodic SRS triggering for non-carrier switching, and an indication value of "1" indicates that DCI is used for aperiodic SRS triggering for carrier switching. For another example, indication bits are added to DCI 2-3 to indicate which transport blocks are aperiodic SRS triggers for non-carrier switching and which transport blocks are aperiodic SRS triggers for carrier switching. For another example, 1bit is added to DCI 2-3, and an indication value of "0" indicates that DCI is used for non-carrier switching and non-periodic SRS triggering for carrier switching, and an indication value of "1" indicates that DCI is used for non-periodic SRS triggering for carrier switching. For another example, 2 bits are added to DCI 2-3, an indication value of "00" indicates that DCI is used for aperiodic SRS triggering for carrier switching, an indication value of "01" indicates that DCI is used for aperiodic SRS triggering for non-carrier switching, and an indication value of "10" indicates that DCI is used for aperiodic SRS triggering for non-carrier switching and carrier switching.

Note that, in the case where the carrier switching and the non-carrier switching coexist in the embodiments of the present application, both the carrier switching and the non-carrier switching may be configured, or one of them may not be configured.

For the above carrier switching configuration, or for non-carrier switching configuration, the configuration includes, for example, but is not limited to: 1) The DCI includes transport blocks such as transport block number1 (block number 1), transport block number 2, transport block number 3. 2) The bit start position, which is also equivalent to the transport block start position, is determined by the higher layer parameters startBitOfFormat2-3 or startBitOfFormat2-2SUL-v1530 (TPC command per BWP) in each terminal, and in type a, each transport block corresponds to one terminal.

2) The transport block of the DCI includes a second indication field, where the second indication field is used to indicate that the transport block is used for non-carrier switching or aperiodic SRS activation for carrier switching. For example, 1bit is added to each transport block (block) in DCI 2-3 to indicate whether the transport block is used for aperiodic SRS triggering for non-carrier switching. Specifically, for example, an indication value of "0" indicates that the transport block is used for aperiodic SRS triggering for non-carrier switching, and an indication value of "1" indicates that the transport block is used for aperiodic SRS triggering for carrier switching.

3) The SRS carrier switching parameter in the radio resource control (Radio Resource Control, RRC) configuration includes a third indication field for indicating the DCI for non-carrier switching and/or aperiodic SRS activation for carrier switching. For example, the SRS-carrier switching configured in RRC adds 1bit to indicate whether DCI 2-3 is used for aperiodic SRS triggering for non-carrier switching. Specifically, for example, an indication value of "0" indicates that DCI is used for aperiodic SRS triggering for non-carrier switching, and an indication value of "1" indicates that DCI is used for aperiodic SRS triggering for carrier switching. For another example, an indication bit is added under SRS-carrier switching configured in RRC to indicate which transport blocks of DCI 2-3 are aperiodic SRS triggers for aperiodic handover and which transport blocks are aperiodic SRS triggers for carrier handover.

4) A fourth indication field is included in a media access Control unit (Media Access Control-Control Element, MAC CE) and is used to indicate or update the DCI for aperiodic SRS activation for non-carrier switching and/or carrier switching. For example, an indication value of "0" indicates that DCI 2-3 is used for aperiodic SRS triggering for non-carrier switching, and an indication value of "1" indicates that DCI 2-3 is used for aperiodic SRS triggering for carrier switching. For another example, an indication bit is added to the MAC CE to indicate which transport blocks of DCI 2-3 are the aperiodic SRS triggers for the non-carrier switching and which transport blocks are the aperiodic SRS triggers for the carrier switching.

In a third example, the DCI is scrambled by a target radio network temporary identity (Radio Network Temporary Identity, RNTI); wherein the target RNTI indicates that the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching.

For example, a newly defined RNTI is added to DCI2-3, where the newly defined RNTI is used to scramble DCI2-3, and if a terminal detects DCI2-3 using the newly defined RNTI, it indicates that the DCI2-3 may be used for aperiodic SRS activation for non-carrier switching or for aperiodic SRS activation for non-carrier switching and carrier switching. For another example, if the terminal detects DCI2-3 with a conventional RNTI, this indicates that the DCI2-3 is available for aperiodic SRS activation for carrier switching.

The foregoing embodiments mainly describe how to enable a terminal to determine that DCI is an aperiodic SRS activation for non-carrier switching and/or carrier switching. In the case where DCI is used for aperiodic SRS activation for aperiodic SRS switching, the terminal may transmit an aperiodic SRS on a current carrier without performing carrier switching, and the aperiodic SRS may be an SRS within at least one carrier indicated by the DCI. In the case where DCI is used for aperiodic SRS activation for carrier switching, the terminal may perform carrier switching and transmit the aperiodic SRS on the switched carrier.

A specific implementation of aperiodic SRS activation will be described below.

In one example, the DCI includes type B, and an SRS request (SRS request) field within a transport block (which may be any one transport block) of the DCI includes at least one of:

1) A first code point indicating that the set of aperiodic SRS resources is not activated.

2) And a second code point, which indicates to activate 1 or 2 aperiodic SRS resource sets configured on the cell corresponding to the transmission block. Optionally, the carrier corresponding to the transport block is a carrier switched carrier.

Alternatively, the use (use) of the set of aperiodic SRS resources mentioned above may be antenna switching (antenna switching).

3) A third code point, which indicates to activate the aperiodic SRS on the carrier switching cell corresponding to the transport block, or to activate the aperiodic SRS on the aperiodic switching cell corresponding to the transport block, or to not activate the aperiodic SRS on the aperiodic switching cell corresponding to the transport block;

4) And a fourth code point, which indicates to activate the aperiodic SRS on the carrier switching cell corresponding to the transport block or indicates to activate the aperiodic SRS on the aperiodic switching cell corresponding to the transport block.

In order to explain the above example in detail, four cases will be described below.

Case 1: the SRS request domain occupies 1 bit, and comprises a first code point and a second code point which respectively correspond to the aperiodic SRS on the inactive carrier switching cell and the aperiodic SRS on the active carrier switching cell.

Case 2: the SRS request domain occupies 2 bits, and comprises a first code point, a second code point, a third code point and a fourth code point which respectively correspond to the SRS on the non-carrier switching cell, the non-periodic SRS on the carrier switching cell and the non-periodic SRS on the carrier switching cell. Wherein the code point indicating activation of the aperiodic SRS on the carrier switching cell is not used to indicate the trigger state.

Case 3: the SRS request domain occupies 2 bits, and comprises a first code point, a second code point, a third code point and a fourth code point which respectively correspond to an aperiodic SRS on an inactive carrier switching cell, an aperiodic SRS on the active carrier switching cell, an aperiodic SRS on the inactive carrier switching cell and an aperiodic SRS on the active carrier switching cell.

The aperiodic SRS trigger states indicated by the third code point and the fourth code point are generally different and correspond to each other through other methods, or only the third code point is used for activating the aperiodic SRS in the non-carrier switching cell.

Case 4: the SRS request domain occupies 2 bits, and comprises a first code point, a second code point, a third code point and a fourth code point which respectively correspond to the SRS on the non-activated carrier switching cell, the aperiodic SRS on the non-carrier switching cell and the aperiodic SRS on the activated non-carrier switching cell.

In a specific example, the SRS request field may include a first code point, a second code point, and at least one of a third code point and a fourth code point. Specifically, for example, code point 00 of the SRS request field within each transport block of the DCI of type B indicates that the set of aperiodic SRS resources is not activated; any one code point (such as 01) in the code points 01/10/11 indicates to activate 1 or 2 aperiodic SRS resource sets configured on the cell corresponding to the transmission block, and the purpose of the aperiodic SRS resource sets can be antenna switching; the remaining two code points (e.g., 10/11) are used to implicitly indicate the carrier corresponding to the transport block in which the carrier is non-carrier switched.

It should be noted that the above-mentioned SRS request field may include the first code point, the second code point, and at least one of the third code point and the fourth code point, which is only for explaining that the selectable value of the SRS request field is one of the above-mentioned plural numbers. In practical applications, only one code point exists in each SRS request field in DCI received by a terminal, for example, the code point of the SRS request field is 00, or 01, or 10, or 11.

For another example, the SRS request field may include a first code point and a second code point, occupying 1 bit. Specifically, for example, code point 00 of the SRS request field within each transport block of the DCI of type B indicates that the set of aperiodic SRS resources is not activated; any one of the code points 01/10/11 (e.g., 01) indicates that 1 or 2 aperiodic SRS resource sets configured on the cell corresponding to the transport block are activated, and the purpose of these aperiodic SRS resource sets may be antenna switching.

Optionally, the third code point is associated with an aperiodic SRS (resource set) of a first trigger state, and the fourth code point is associated with an aperiodic SRS of a second trigger state; wherein, the corresponding relation between the code point and the triggering state is preset or the configuration/updating of the high-level signaling; or the corresponding relation between the code points and the trigger states is determined according to the size sequence of the code points.

For example, the trigger states of the aperiodic SRS resource set triggered by the third code point and the fourth code point follow the association between the preset code point and the trigger states. For example, the third code point and the fourth code point are 10 and 11, respectively, 10 being used to trigger the aperiodic SRS resource set of trigger state=2, and 11 being used to trigger the aperiodic SRS resource set of trigger state=3.

For another example, the third code point and the fourth code point are sequentially used to trigger the aperiodic SRS resource sets of trigger state=1 and trigger state 2 according to the order of the code points. Specifically, for example, the third code point and the fourth code point are 10 and 11, respectively, 10 being used to trigger the aperiodic SRS resource set of trigger state=1, and 11 being used to trigger the aperiodic SRS resource set of trigger state=2.

In an example, for the carrier switch type B type, the embodiment of the present application may redefine a correspondence between the SRS request domain code point and the triggering state of the SRS resource set; wherein 00 (corresponding to the first code point of the foregoing) indicates that the set of aperiodic SRS resources is not activated; any one of the code points 01/10/11 (corresponding to the second code point) indicates that 1 or 2 aperiodic SRS resource sets configured on the cell corresponding to the transport block are activated, and the use of these aperiodic SRS resource sets may be antenna switching. Optionally, the 2 aperiodic SRS resource sets do not limit the configured trigger state.

For example, the second code point 01 is a code point for activation, and when the SRS request field is 01, it indicates to activate 1 or 2 aperiodic SRS resource sets configured on the cell corresponding to the transport block, and the purpose of these aperiodic SRS resource sets may be antenna switching.

Optionally, the trigger states of the 2 aperiodic SRS resource sets configured are the same.

Optionally, the trigger state in which the 2 aperiodic SRS resource sets are configured corresponds to an activated code point in the SRS request domain. For example, when the trigger state of the 2 aperiodic SRS resource set configuration needs to be 01 corresponding to the SRS request domain corresponding to the activated code point, the aperiodic SRS resource set configured on the corresponding serving cell for antenna switching is indicated to be activated, and the trigger state of the SRS resource set is configured to be 1.

Optionally, the 2 aperiodic SRS resource sets do not limit the configured trigger state. For example, 01 is a code point for activation, and when the SRS request field is 01, activation of an aperiodic SRS resource set configured on a corresponding serving cell for antenna switching is indicated.

A specific implementation of aperiodic SRS activation will be described below in connection with type a.

In one example, the DCI includes type a, the SRS request field of the DCI is used to determine the SRS resource set of the target trigger state, and the method provided by embodiment 200 further includes: the terminal determines a carrier set having a carrier set index equal to a preset value, the carrier set including at least one carrier mentioned in S202. This example, for example, the terminal determines an SRS carrier set index (SRS-cc-setIndex) Identification (ID), i.e., a carrier set with a carrier set index (cc-setIndex) equal to 4, and the SRS request field of the DCI is used to determine the SRS resource set of the target trigger state in carrier set 4.

In this example, the terminal has determined that DCI is an aperiodic SRS activation for non-carrier handover, and directly determines a carrier set with a carrier set index equal to 4, and the SRS request field is used to determine, in the carrier set 4, an SRS resource set with the same trigger state as indicated by the SRS request field.

In one example, the DCI includes type a, the SRS request field of the DCI is used to determine the SRS resource set of the target trigger state, and the method provided by embodiment 200 further includes: and determining a carrier set corresponding to the code point of the SRS request domain, wherein the carrier set comprises at least one carrier mentioned in S202. The correspondence between the code points and the carrier set of the SRS request domain may be protocol-agreed, or higher layer signaling configured or updated.

In this example, for example, the terminal has determined that the DCI is an aperiodic SRS activation for non-carrier handover, and the terminal directly determines a carrier set corresponding to a code point of an SRS request domain, where the SRS request domain is further used to determine, in the carrier set, an SRS resource set that is the same as a trigger state indicated by the SRS request domain.

Alternatively, in the foregoing embodiments, the carrier in the carrier set with index4 is not a cell carrier with no PUSCH configured, for example, the carrier in cc-setIndex4 is not expected by the terminal to be a PUSCH-less cell carrier.

Optionally, in each embodiment, a carrier in the carrier set corresponding to the code point of the SRS request field of the DCI is not a cell carrier of the non-configured PUSCH. For example, the carrier within cc-setIndex corresponding to the code point of the terminal unexpected SRS request domain is PUSCH-less cell carrier.

The transmission method of the aperiodic SRS according to the embodiment of the present application is described in detail above with reference to fig. 2. A transmission method of an aperiodic SRS according to another embodiment of the present application will be described in detail below with reference to fig. 3. It will be appreciated that the interaction of the network side device with the terminal described from the network side device is the same as the description of the terminal side in the method shown in fig. 2, and the related description is omitted appropriately to avoid repetition.

Fig. 3 is a schematic flow chart of implementation of a transmission method of an aperiodic SRS according to the embodiment of the present application, which may be applied to a network-side device. As shown in fig. 3, the method 300 includes:

s302: the network side equipment transmits DCI, wherein the format of the DCI comprises DCI 2-3, and the DCI is used for activating aperiodic SRS on at least one carrier of at least one terminal.

S302: and receiving the aperiodic SRS.

According to the transmission method of the aperiodic SRS, the aperiodic SRS on at least one carrier of at least one terminal can be activated simultaneously by the DCI transmitted by the network side equipment, the network side equipment does not need to transmit the DCI for each carrier and each terminal respectively, the cost of the DCI is reduced, the PDCCH congestion is reduced, and the performance of a communication system is improved.

Optionally, as an embodiment, the receiving the aperiodic SRS includes: the aperiodic SRS is received on the active BWP of the terminal.

Alternatively, the first and second modules may, as one embodiment,

the DCI comprises a type A, the DCI comprises at least one transport block, and the DCI is used for activating an aperiodic SRS on at least one carrier corresponding to each transport block in the at least one transport block; and/or

The DCI includes a type B, and the DCI includes at least one transport block, and is configured to activate an aperiodic SRS on a carrier corresponding to each transport block in the at least one transport block.

Optionally, as an embodiment, the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching.

Optionally, as an embodiment, the method further includes: and sending indication information, wherein the indication information is used for indicating the DCI to be used for non-carrier switching and/or non-periodic SRS activation of carrier switching.

Optionally, as an embodiment, the DCI includes a type a, and the indication information is used to indicate that the DCI corresponds to an nth SRS-TPC-PDCCH-Config, where N is a positive integer;

wherein, when N is more than or equal to 2, the DCI is used for the aperiodic SRS activation of the non-carrier switching or the aperiodic SRS activation of the non-carrier switching and the carrier switching;

In case n=1 or the indication information is not present, the DCI is used for aperiodic SRS activation for carrier switching.

Optionally, as an embodiment, the carriers within the carrier set configured in SRS-TPC-PDCCH-Config other than SRS-TPC-PDCCH-Config of 1 st are not cell carriers for which PUSCH is not configured.

Optionally, as an embodiment, the DCI satisfies one of:

the DCI includes a first indication field for indicating that the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching;

the transmission block of the DCI comprises a second indication domain, wherein the second indication domain is used for indicating the transmission block to be used for non-carrier switching and/or non-periodic SRS activation of carrier switching;

the SRS carrier switching parameter in the RRC configuration comprises a third indication domain, wherein the third indication domain is used for indicating that the DCI is used for non-carrier switching and/or non-periodic SRS activation of carrier switching;

the MAC CE includes a fourth indication field, where the fourth indication field is configured to indicate that the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching.

Optionally, as an embodiment, the DCI is scrambled by a target RNTI; wherein the target RNTI indicates that the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching.

Optionally, as an embodiment, the DCI includes type B, and the SRS request field within a transport block of the DCI includes at least one of:

a first code point indicating that the set of aperiodic SRS resources is not activated;

a second code point, which indicates to activate 1 or 2 aperiodic SRS resource sets configured on the cell corresponding to the transport block, and the carrier corresponding to the transport block is a carrier for carrier switching;

a third code point, which indicates to activate the aperiodic SRS on the carrier switching cell corresponding to the transport block, or to activate the aperiodic SRS on the aperiodic switching cell corresponding to the transport block, or to not activate the aperiodic SRS on the aperiodic switching cell corresponding to the transport block;

and a fourth code point, which indicates to activate the aperiodic SRS on the carrier switching cell corresponding to the transport block or indicates to activate the aperiodic SRS on the aperiodic switching cell corresponding to the transport block.

Alternatively, the first and second modules may, as one embodiment,

the trigger states of the 2 aperiodic SRS resource sets configured are the same; and/or

The trigger state in which the 2 aperiodic SRS resource sets are configured corresponds to the activated code point in the SRS request domain.

Optionally, as an embodiment, the third code point is associated with an aperiodic SRS of the first trigger state, and the fourth code point is associated with an aperiodic SRS of the second trigger state;

Wherein, the corresponding relation between the code point and the triggering state is preset or the configuration/updating of the high-level signaling; or (b)

The corresponding relation between the code points and the trigger states is determined according to the size sequence of the code points.

Optionally, as an embodiment, the use of the aperiodic SRS resource set is antenna switching.

Optionally, as an embodiment, the aperiodic SRS configured on the same carrier is the same purpose.

Optionally, as an embodiment, the SRS request field of the DCI is configured to determine an SRS resource set of the target trigger state, and the terminal is further configured to determine a carrier set with a carrier set index equal to a preset value, where the carrier set includes the at least one carrier.

Optionally, as an embodiment, the SRS request field of the DCI is used to determine an SRS resource set of the target trigger state, and the terminal is further used to determine a carrier set corresponding to a code point of the SRS request field, where the carrier set includes the at least one carrier.

Alternatively, the first and second modules may, as one embodiment,

the carrier in the carrier set with index 4 is not the cell carrier of the unconfigured PUSCH; and/or

And the carrier in the carrier set corresponding to the code point of the SRS request domain of the DCI is not a cell carrier without the PUSCH.

Note that, in the method for transmitting an aperiodic SRS according to the embodiment of the present application, the execution body may be an aperiodic SRS transmission device, or a control module for executing the method for transmitting an aperiodic SRS in the aperiodic SRS transmission device. In the embodiment of the present application, an example of a method for executing transmission of an aperiodic SRS by a transmission device of an aperiodic SRS is described.

Fig. 4 is a schematic structural diagram of an aperiodic SRS transmission device according to an embodiment of the present application, which may correspond to a terminal in other embodiments. As shown in fig. 4, the apparatus 400 includes:

a receiving module 402 may be configured to receive DCI, where a format of the DCI includes DCI 2-3, where the DCI is configured to activate an aperiodic SRS on at least one carrier of at least one terminal.

A transmitting module 404 may be configured to transmit the aperiodic SRS.

According to the transmission device of the aperiodic SRS, the received DCI can activate the aperiodic SRS on at least one carrier of at least one terminal at the same time, network side equipment does not need to send DCI for each carrier and each terminal respectively, and therefore DCI overhead is reduced, PDCCH congestion is reduced, and communication system performance is improved.

Optionally, as an embodiment, the sending module 404 may be configured to send the aperiodic SRS on the active bandwidth BWP of the terminal.

Alternatively, the first and second modules may, as one embodiment,

Optionally, as an embodiment, the receiving module 402 may be further configured to receive indication information, where the indication information is used to indicate that the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching.

Optionally, as an embodiment, the DCI includes a type a, where the indication information is used to indicate that the DCI corresponds to an nth sounding reference signal power control command physical downlink control channel configuration SRS-TPC-PDCCH-Config, and N is a positive integer;

Optionally, as an embodiment, the DCI satisfies one of:

Alternatively, the first and second modules may, as one embodiment,

Optionally, as an embodiment, the SRS request field of the DCI is configured to determine an SRS resource set of the target trigger state, and the apparatus further includes a determining module configured to determine a carrier set having a carrier set index equal to a preset value, where the carrier set includes the at least one carrier.

Optionally, as an embodiment, the SRS request field of the DCI is configured to determine an SRS resource set of a target trigger state, and the apparatus further includes a determining module configured to determine a carrier set corresponding to a code point of the SRS request field, where the carrier set includes the at least one carrier.

Alternatively, the first and second modules may, as one embodiment,

The apparatus 400 according to the embodiment of the present application may refer to the flow of the method 200 corresponding to the embodiment of the present application, and each unit/module in the apparatus 400 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 200, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

The transmission device for the aperiodic SRS in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.

The transmission device for aperiodic SRS in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The aperiodic SRS transmission device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 2 to 3, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Fig. 5 is a schematic structural diagram of an apparatus for transmitting an aperiodic SRS according to an embodiment of the present application, where the apparatus may correspond to a network-side device in other embodiments. As shown in fig. 5, the apparatus 500 includes:

a transmitting module 502 may be configured to transmit DCI, where a format of the DCI includes DCI 2-3, where the DCI is used to activate an aperiodic SRS on at least one carrier of at least one terminal.

A receiving module 504 may be configured to receive the aperiodic SRS.

In the embodiment of the present application, the DCI transmitted by the aperiodic SRS transmission device may activate the aperiodic SRS on at least one carrier of at least one terminal at the same time, without separately transmitting the DCI for each carrier and each terminal, which is beneficial to reducing the cost of the DCI, reducing the PDCCH congestion, and improving the performance of the communication system.

Optionally, as an embodiment, the receiving module 504 may be configured to receive the aperiodic SRS on an active BWP of the terminal.

Alternatively, the first and second modules may, as one embodiment,

Optionally, as an embodiment, the sending module 502 may be further configured to send indication information, where the indication information is used to indicate that the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching.

Optionally, as an embodiment, the DCI satisfies one of:

Alternatively, the first and second modules may, as one embodiment,

The apparatus 500 according to the embodiment of the present application may refer to the flow of the method 300 corresponding to the embodiment of the present application, and each unit/module in the apparatus 500 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 300, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and a program or an instruction stored in the memory 602 and capable of running on the processor 601, where, for example, the communication device 600 is a terminal, the program or the instruction is executed by the processor 601 to implement each process of the above-mentioned aperiodic SRS transmission method embodiment, and the same technical effect can be achieved. When the communication device 600 is a network side device, the program or the instruction, when executed by the processor 601, implements the respective processes of the above-mentioned embodiments of the transmission method of the aperiodic SRS, and can achieve the same technical effects, so that repetition is avoided and no further description is given here.

Fig. 7 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 700 includes, but is not limited to: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 710 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, with the graphics processor 7041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from a network side device, the radio frequency unit 701 processes the downlink data with the processor 710; in addition, the uplink data is sent to the network side equipment. Typically, the radio unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 may be used to store software programs or instructions and various data. The memory 709 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 709 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

Processor 710 may include one or more processing units; alternatively, processor 710 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 710.

The radio frequency unit 701 is configured to receive DCI, where a format of the DCI includes DCI 2-3, and the DCI is used to activate an aperiodic SRS on at least one carrier of at least one terminal; the radio frequency unit 701 is further configured to send the aperiodic SRS.

The terminal 700 provided in this embodiment of the present application may further implement each process of the above embodiment of the method for transmitting an aperiodic SRS, and may achieve the same technical effects, so that repetition is avoided and no further description is given here.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 8, the network side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information via the antenna 81, and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted, and transmits the processed information to the radio frequency device 82, and the radio frequency device 82 processes the received information and transmits the processed information through the antenna 81.

The above-described band processing means may be located in the baseband means 83, and the method performed by the network-side device in the above embodiment may be implemented in the baseband means 83, and the baseband means 83 includes the processor 84 and the memory 85.

The baseband apparatus 83 may, for example, include at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, a processor 84, is connected to the memory 85, so as to call a program in the memory 85, and perform the network side device operation shown in the above method embodiment.

The baseband device 83 may also include a network interface 86 for interacting with the radio frequency device 82, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the network side device of the embodiment of the present invention further includes: instructions or programs stored in the memory 85 and executable on the processor 84, the processor 84 invokes the instructions or programs in the memory 85 to perform the method performed by the modules shown in fig. 5, and achieve the same technical effects, and are not repeated here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the above-mentioned aperiodic SRS transmission method embodiment are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The processor may be a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, implement each process of the above-mentioned aperiodic SRS transmission method embodiment, and achieve the same technical effect, so that repetition is avoided, and no further description is given here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), including several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method for transmitting an aperiodic SRS, the method comprising:

the terminal receives Downlink Control Information (DCI), wherein the format of the DCI comprises DCI 2-3, the DCI is used for activating an aperiodic Sounding Reference Signal (SRS) on at least one carrier of at least one terminal, and the DCI is used for aperiodic SRS activation of aperiodic carrier switching and/or carrier switching;

transmitting the aperiodic SRS;

wherein when the DCI includes type a, the method further comprises: receiving indication information, wherein the indication information is used for indicating that the DCI is used for non-carrier switching and/or non-periodic SRS activation of carrier switching;

or,

when the DCI includes type B, an SRS request field in the DCI includes: a code point for indicating to activate the aperiodic SRS on the non-carrier switching cell, or to deactivate the aperiodic SRS on the non-carrier switching cell;

or,

the DCI is scrambled by a target Radio Network Temporary Identifier (RNTI), wherein the target RNTI indicates that the DCI is used for non-carrier switching and/or non-periodic SRS activation of carrier switching.

2. The method of claim 1, wherein the transmitting the aperiodic SRS comprises: the aperiodic SRS is transmitted over an active bandwidth portion BWP of the terminal.

3. The method of claim 1, wherein the step of determining the position of the substrate comprises,

4. The method of claim 1, wherein the indication information is configured to indicate that the DCI corresponds to an nth sounding reference signal power control command physical downlink control channel configuration SRS-TPC-PDCCH-Config, where N is a positive integer;

5. The method of claim 4 wherein the carriers within the set of carriers configured in SRS-TPC-PDCCH-Config other than 1 st SRS-TPC-PDCCH-Config are not cell carriers for which PUSCH is not configured.

6. The method of claim 3, wherein the DCI satisfies one of:

the SRS carrier switching parameter in the radio resource control RRC configuration comprises a third indication domain, wherein the third indication domain is used for indicating that the DCI is used for non-carrier switching and/or non-periodic SRS activation of carrier switching;

the medium access control unit MAC CE includes a fourth indication field, where the fourth indication field is configured to indicate that the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching.

7. The method of claim 3, wherein the DCI comprises type B, and the SRS request field within a transport block of the DCI comprises at least one of:

8. The method of claim 7, wherein the step of determining the position of the probe is performed,

9. The method of claim 7, wherein the step of determining the position of the probe is performed,

the SRS request domain in the transmission block of the DCI comprises a third code point, wherein the third code point is associated with the aperiodic SRS of the first trigger state, and the fourth code point is associated with the aperiodic SRS of the second trigger state;

10. The method of claim 7, wherein the purpose of the set of aperiodic SRS resources is antenna switching.

11. The method of claim 1, wherein the aperiodic SRS configured on the same carrier is the same use.

12. The method of claim 1, wherein the SRS request field of the DCI is used to determine an SRS resource set for a target trigger state, the method further comprising:

And determining a carrier set with a carrier set index equal to a preset value, wherein the carrier set comprises the at least one carrier.

13. The method of claim 1, wherein the SRS request field of the DCI is used to determine an SRS resource set for a target trigger state, the method further comprising:

and determining a carrier set corresponding to the code point of the SRS request domain, wherein the carrier set comprises the at least one carrier.

14. The method according to claim 12 or 13, wherein,

15. A method for transmitting an aperiodic SRS, the method comprising:

the network side equipment transmits DCI, wherein the format of the DCI comprises DCI 2-3, the DCI is used for activating aperiodic SRS on at least one carrier of at least one terminal, and the DCI is used for aperiodic SRS activation of non-carrier switching and/or carrier switching;

receiving the aperiodic SRS;

wherein when the DCI includes type a, the method further comprises: transmitting indication information, wherein the indication information is used for indicating that the DCI is used for non-carrier switching and/or non-periodic SRS activation of carrier switching;

Or,

or,

the DCI is scrambled with a target RNTI, wherein the target RNTI indicates that the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching.

16. The method of claim 15, wherein the receiving the aperiodic SRS comprises: the aperiodic SRS is received on the active BWP of the terminal.

17. The method of claim 15, wherein the step of determining the position of the probe is performed,

18. The method of claim 15, wherein the indication information is used to indicate that the DCI corresponds to an nth SRS-TPC-PDCCH-Config, N being a positive integer;

19. The method of claim 18, wherein the carriers within the set of carriers configured in SRS-TPC-PDCCH-Config other than 1 st SRS-TPC-PDCCH-Config are not cell carriers for which PUSCH is not configured.

20. The method of claim 17, wherein the DCI satisfies one of:

21. The method of claim 17, wherein the DCI comprises type B and the SRS request field within a transport block of the DCI comprises at least one of:

22. The method of claim 21, wherein the step of determining the position of the probe is performed,

23. The method of claim 21, wherein the step of determining the position of the probe is performed,

24. The method of claim 21, wherein the purpose of the set of aperiodic SRS resources is antenna switching.

25. The method of claim 15, wherein the aperiodic SRS configured on the same carrier is the same use.

26. The method of claim 15, wherein the SRS request field of the DCI is used to determine an SRS resource set for a target trigger state, and wherein the terminal is further configured to determine a carrier set having a carrier set index equal to a preset value, the carrier set including the at least one carrier.

27. The method of claim 15, wherein the SRS request field of the DCI is used to determine an SRS resource set of a target trigger state, and the terminal is further used to determine a carrier set corresponding to a code point of the SRS request field, where the carrier set includes the at least one carrier.

28. The method according to claim 26 or 27, wherein,

29. An aperiodic SRS transmission device, comprising:

A receiving module, configured to receive DCI, where a format of the DCI includes DCI 2-3, the DCI is used to activate aperiodic SRS on at least one carrier of at least one terminal, and the DCI is used for aperiodic SRS activation for aperiodic carrier switching and/or carrier switching;

a transmitting module, configured to transmit the aperiodic SRS;

when the DCI includes type a, the receiving module is further configured to receive indication information, where the indication information is used to indicate that the DCI is used for non-carrier switching and/or aperiodic SRS activation for carrier switching;

or,

30. An aperiodic SRS transmission device, comprising:

a transmitting module, configured to transmit DCI, where a format of the DCI includes DCI 2-3, the DCI is used to activate aperiodic SRS on at least one carrier of at least one terminal, and the DCI is used for aperiodic SRS activation for aperiodic carrier switching and/or carrier switching;

A receiving module, configured to receive the aperiodic SRS;

wherein when the DCI includes type a, further comprising: transmitting indication information, wherein the indication information is used for indicating that the DCI is used for non-carrier switching and/or non-periodic SRS activation of carrier switching;

or,

31. A terminal comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements the method of transmission of aperiodic SRS of any one of claims 1 to 14.

32. A network side device comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements a method of transmission of aperiodic SRS as claimed in any one of claims 15 to 28.

33. A readable storage medium, wherein a program or an instruction is stored on the readable storage medium, which when executed by a processor, implements the method of transmission of an aperiodic SRS according to any one of claims 1 to 14 or implements the method of transmission of an aperiodic SRS according to any one of claims 15 to 28.