A triggering and sending method, terminal and device for non-periodic detection reference signal

Abstract

The present invention provides a triggering and sending method, terminal and device for a non-periodic sounding reference signal, wherein the triggering method comprises: configuring a mapping relationship between multiple non-periodic sounding reference signal SRS resource sets and a PDCCH configuration carrying a target SRS triggering indication; and sending a triggering indication of the non-periodic SRS to the terminal according to the mapping relationship. The technical solution of the present invention enables the time slot offset to take a non-fixed value, which can enhance the flexibility of the non-periodic SRS triggering, thereby reducing PDCCH blocking and ensuring that the system overhead is as small as possible.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a triggering and sending method, terminal and device for a non-periodic sounding reference signal. Background Art

[0002] PDCCH (Physical Downlink Control Channel) configures resources in units of control resource sets (CORESETs). A CORESET contains a set of PRBs (Physical Resource Blocks) in the frequency domain, with a minimum granularity of 6RBs; in the time domain, the length is 1 to 3 symbols, and the starting position in the time slot is configurable.

[0003] In CORESET, there are concepts of REGs (resource unit groups) and CCEs (control channel units): 1 CCE occupies 6 REGs, and 1 REG occupies 72 REs. At the same time, PDCCH is aggregated by CCE (1, 2, 4, 8, 16), and CCE-to-REG mapping supports interleaving and non-interleaving. Each cell is configured with up to 12 CORESETs (0-11);

[0004] The UE (terminal) blindly detects the DCI sent in the PDCCH search space (SearchSpace). Unlike LTE, different search spaces in NR require high-level parameter configuration.

[0005] The search space configuration specifies how / where the terminal searches for PDCCH candidate sets. Each search space is associated with a CORESET ID (physical resource).

[0006] After determining the PDCCH physical resource (CORESET) and searching the spatial type / time domain characteristics, the terminal searches for spatial blind detection. The CCE index of each candidate PDCCH in the CORESET is determined according to the hash function. For example, AL=4, N_CCE=24, then the CCE index of the candidate PDCCH (PDCCH Candidate) may be {0,1,2,3} or {4,5,6,7} or {8,9,10,11} or {12,13,14,15} or {16,17,18.19} or {20,21,22,23}. The CCE index for each candidate PDCCH can be determined according to the function. The terminal decodes all candidate PDCCHs and uses CRC check.

[0007] The triggering offset of aperiodic SRS is defined as the interval between the time when the PDCCH triggers the SRS (channel sounding reference signal) and the time when the SRS is transmitted. In the prior art, the slot offset of AP-SRS can only be configured at the SRS set level in RRC.

[0008] For the typical frame structure DDDSU, if slotoffset is set to 0-4, there are 8 cases. If slotoffset = 2, only 2 cases can be supported. This severely limits the possible PDCCH and SRS transmission positions. Due to the slotoffset limit, the PDCCH on some time slots may be overloaded and severely blocked. Summary of the invention

[0009] The technical problem to be solved by the present invention is how to provide a triggering and sending method, terminal and device for a non-periodic sounding reference signal, so as to solve the problem in the prior art that due to the limitation of time slot offset, the PDCCH on some time slots may be overloaded and severely blocked.

[0010] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0011] A method for triggering a non-periodic detection reference signal, applied to a network device, the method comprising:

[0012] Configure a mapping relationship between multiple aperiodic sounding reference signal SRS resource sets and a PDCCH configuration carrying a target SRS trigger indication;

[0013] According to the mapping relationship, a trigger indication of the aperiodic SRS is sent to the terminal.

[0014] Optionally, at least two SRS resource sets among the multiple SRS resource sets are configured with different time slot offsets.

[0015] Optionally, sending a trigger indication of an aperiodic SRS to a terminal according to the mapping relationship includes:

[0016] According to the SRS resource set to be triggered and the mapping relationship, an SRS triggering indication is sent to the terminal.

[0017] Optionally, the PDCCH carrying the target trigger indication is configured with at least one of the following:

[0018] Search space;

[0019] Control resource sets;

[0020] Candidate physical downlink control channel PDCCH configured for the terminal;

[0021] Control channel element CCE.

[0022] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0023] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0024] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0025] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control resource set CORESET corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0026] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0027] According to the SRS resource set to be triggered and the mapping relationship, downlink control information DCI is sent on the candidate physical downlink control channel PDCCH corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0028] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0029] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control channel element CCE corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0030] An embodiment of the present invention further provides a method for sending a non-periodic sounding reference signal, which is applied to a terminal, and the method includes:

[0031] Acquire a mapping relationship between a plurality of aperiodic sounding reference signal SRS resource sets configured by a network device and a configuration of a PDCCH carrying a target SRS trigger indication;

[0032] According to the mapping relationship, receiving a trigger indication of an aperiodic SRS sent by a network device;

[0033] The selected SRS resource set is sent according to the triggering information of the aperiodic SRS.

[0034] Optionally, at least two SRS resource sets among the multiple SRS resource sets are configured with different time slot offsets.

[0035] Optionally, the PDCCH of the target trigger indication is configured with at least one of the following:

[0036] Search space;

[0037] Control resource sets;

[0038] Candidate physical downlink control channel PDCCH configured for the terminal;

[0039] Control channel element CCE.

[0040] Optionally, receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes:

[0041] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0042] Optionally, receiving trigger information of an aperiodic SRS sent by a network device according to the mapping relationship includes:

[0043] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control resource set CORESET corresponding to the SRS resource set, and downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0044] Optionally, receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes:

[0045] According to the triggered SRS resource set and the mapping relationship as needed, downlink control information DCI is received on a candidate physical downlink control channel PDCCH corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0046] Optionally, receiving trigger information of an aperiodic SRS sent by a network device according to the mapping relationship includes:

[0047] According to the triggered SRS resource set and the mapping relationship as needed, a physical downlink control channel PDCCH is received on a control channel element CCE corresponding to the SRS resource set, and downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0048] An embodiment of the present invention further provides a triggering device for a non-periodic detection reference signal, which is applied to a network device, and the device includes:

[0049] A processing module, used to configure a mapping relationship between a plurality of non-periodic sounding reference signal SRS resource sets and a configuration of a PDCCH carrying a target SRS trigger indication;

[0050] The transceiver module is used to send a trigger indication of the non-periodic SRS to the terminal according to the mapping relationship.

[0051] An embodiment of the present invention further provides a network device, including:

[0052] A processor, configured to configure a mapping relationship between a plurality of non-periodic sounding reference signal SRS resource sets and a configuration of a PDCCH carrying a target SRS trigger indication;

[0053] The transceiver is used to send a trigger indication of the non-periodic SRS to the terminal according to the mapping relationship.

[0054] An embodiment of the present invention further provides a device for sending a non-periodic sounding reference signal, which is applied to a terminal, including:

[0055] A processing module, used to obtain a mapping relationship between a plurality of non-periodic sounding reference signal SRS resource sets configured by a network device and a configuration of a PDCCH carrying a target SRS trigger indication;

[0056] The transceiver module is used to receive the trigger indication of the non-periodic SRS sent by the network device according to the mapping relationship; and send the SRS resource set that needs to be triggered according to the trigger information of the non-periodic SRS.

[0057] An embodiment of the present invention further provides a terminal, including:

[0058] A processor, configured to obtain a mapping relationship between a plurality of aperiodic sounding reference signal SRS resource sets configured by a network device and a configuration of a PDCCH carrying a target SRS trigger indication;

[0059] The transceiver is used to receive a trigger indication of a non-periodic SRS sent by a network device according to the mapping relationship; and send the SRS resource set that needs to be triggered according to the trigger information of the non-periodic SRS.

[0060] An embodiment of the present invention further provides a communication device, comprising: a processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method described in any one of the above items is executed.

[0061] An embodiment of the present invention further provides a computer-readable storage medium storing instructions, which, when executed on a computer, enables the computer to execute any of the above methods.

[0062] The above solution of the present invention includes at least the following beneficial effects:

[0063] An embodiment of the present invention allows a base station to configure multiple AP-SRS sets for a UE in RRC, wherein at least two AP-SRS sets have different slot offsets. An embodiment of the present invention enables slotoffset to take a non-fixed value, and then the base station selects one AP-SRS set and sends a DCI trigger to enhance the flexibility of non-periodic SRS triggering, thereby reducing PDCCH blocking and ensuring that system overhead is as small as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is a flowchart of a method for triggering a non-periodic sounding reference signal on the network side according to an embodiment of the present invention;

[0065] Figure 2 is a schematic diagram of an SRS sending process under a candidate-SRS set mapping relationship according to an embodiment of the present invention;

[0066] Figure 3 is a schematic diagram of a candidate-SRS set mapping relationship according to an embodiment of the present invention;

[0067] Figure 4 This is a schematic diagram of a CCE index mapping relationship according to an embodiment of the present invention;

[0068] Figure 5 It is a schematic flow chart of a method for sending a non-periodic sounding reference signal on a terminal side according to an embodiment of the present invention;

[0069] Figure 6 It is a schematic diagram of the structure of a triggering device for a non-periodic detection reference signal on a network device side according to an embodiment of the present invention;

[0070] Figure 7 It is a schematic diagram of the network device structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0071] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0072] like Figure 1 As shown, an embodiment of the present invention provides a method for triggering a non-periodic sounding reference signal, which is applied to a network device, and the method includes:

[0073] Step 11: configuring a mapping relationship between a plurality of aperiodic sounding reference signal SRS resource sets and a configuration of a PDCCH carrying a target SRS trigger indication;

[0074] Step 12: According to the mapping relationship, a trigger indication of the non-periodic SRS is sent to the terminal.

[0075] This embodiment of the present invention allows the base station to configure multiple AP-SRS sets (non-periodic SRS sets) for the UE in the RRC, where the slot offsets (time slot offsets) corresponding to at least two AP-SRS sets are different. This embodiment of the present invention enables the slotoffset to take a non-fixed value, and then the base station selects one AP-SRS set from them and sends a DCI trigger to enhance the flexibility of the non-periodic SRS triggering, thereby reducing PDCCH blocking and ensuring that the system overhead is as small as possible.

[0076] In an optional embodiment of the present invention, in step 11, time slot offsets configured for at least two SRS resource sets among the multiple SRS resource sets are different.

[0077] In an optional embodiment of the present invention, in step 12, sending a trigger indication of an aperiodic SRS to a terminal according to the mapping relationship includes:

[0078] According to the SRS resource set to be triggered and the mapping relationship, an SRS triggering indication is sent to the terminal.

[0079] In an optional embodiment of the present invention, in step 11, the PDCCH carrying the target trigger indication is configured with at least one of the following:

[0080] Search space;

[0081] Control resource sets;

[0082] Candidate physical downlink control channel PDCCH configured for the terminal;

[0083] Control channel element CCE.

[0084] In this embodiment of the present invention, the target trigger information is set, so that the selected AP-SRS set can be indicated by the triggered DCI.

[0085] In an optional embodiment of the present invention, in step 12, according to the SRS resource set to be triggered and the mapping relationship, an SRS trigger indication is sent to the terminal, including:

[0086] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0087] This embodiment of the present invention is specifically implemented through the following steps:

[0088] 1) The base station configures multiple AP-SRS resource sets for the UE: {SRS set1, SRS set2, SRS set3...}, and their slot offsets are different;

[0089] 2) The base station sets the mapping relationship between the searchspace set {searchspace1, searchspace2, searchspace3...} associated with the PDCCH-Config and {SRS set1, SRS set2, SRS set3...} (can be 1 to 1 or multiple to 1);

[0090] For example: searchspace1-SRS set1, searchspace2-SRS set2... or searchspace1 / 2-SRS set1, searchspace3 / 4-SRS set2...,

[0091] This mapping relationship can be configured through RRC and can also be updated through MAC CE.

[0092] 3) After the base station selects the AP-SRS set with the appropriate slot offset, it sends the PDCCH in the search space(s) corresponding to this SRS set;

[0093] 4) After receiving the DCI (PDCCH carries the DCI), the UE implicitly determines the triggered AP-SRS according to the search space(s) to which the carried PDDCH belongs.

[0094] In an optional embodiment of the present invention, in step 12, according to the SRS resource set to be triggered and the mapping relationship, sending an SRS trigger indication to the terminal includes:

[0095] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control resource set CORESET corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0096] This embodiment of the present invention is specifically implemented through the following steps:

[0097] 1) The base station configures multiple AP-SRS resource sets for the UE: {SRS set1, SRS set2, SRS set3...}, and their slot offsets are different;

[0098] 2) The base station sets the mapping relationship between the CORESET set {CORESET 1, CORESET2, CORESET3...} associated with PDCCH-Config and {SRS set1, SRS set2, SRS set3...} (can be 1 to 1 or multiple to 1);

[0099] For example: CORESET1-SRS set1, CORESET2-SRS set2... or CORESET1 / 2-SRS set1, CORESET3 / 4-SRS set2...,

[0100] This mapping relationship can be configured through RRC and can also be updated through MAC CE.

[0101] 3) After the base station selects the AP-SRS set with the appropriate slot offset, it sends the PDCCH in the CORESET(s) corresponding to this SRS set;

[0102] 4) After receiving the DCI, the UE implicitly determines the triggered AP-SRS according to the CORESET(s) to which the carried PDDCH belongs.

[0103] In an optional embodiment of the present invention, in step 12, according to the SRS resource set to be triggered and the mapping relationship, sending an SRS trigger indication to the terminal includes:

[0104] According to the SRS resource set to be triggered and the mapping relationship, downlink control information DCI is sent on the candidate physical downlink control channel PDCCH corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send SRS.

[0105] like Figure 2 As shown, this embodiment of the present invention is specifically implemented through the following steps:

[0106] 1) Similar to the method of implicitly indicating using search space, the base station configures PDCCH and SRS for the UE, as well as the mapping relationship between multiple PDCCH candidates (candidate PDCCH) of the PDCCH and the AP-SRS set.

[0107] 2) After the base station selects the AP-SRS set with the appropriate slot offset, it sends the PDCCH on the corresponding PDCCH candidate(s);

[0108] 3) After receiving the PDCCH, the UE determines the AP-SRS set that the base station needs to trigger according to the candidate(s) index and sends the SRS.

[0109] like Figure 3 As shown, one of the candidate-SRS set mapping relationships of this embodiment of the present invention is: candidate 0-SRS set 0, candidate 1-SRS set 1, candidate 2-SRS set 2, candidate 3-SRS set 3.

[0110] In an optional embodiment of the present invention, in step 12, according to the SRS resource set to be triggered and the mapping relationship, sending an SRS trigger indication to the terminal includes:

[0111] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control channel element CCE corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0112] This embodiment of the present invention is specifically implemented through the following steps:

[0113] 1) The base station configures PDCCH and SRS for the UE and sets the mapping relationship between the CCE index of the PDCCH and the AP-SRS set.

[0114] 2) After the base station selects the AP-SRS set with the appropriate slot offset, it sends the PDCCH on the corresponding CCE

[0115] 3) After receiving the PDCCH, the UE determines the AP-SRS set that the base station needs to trigger based on the CCE index where it is located and sends this SRS;

[0116] For example: Figure 4As shown, if the UE receives the PDCCH carried on CCE{0,1,2,3}, SRS set 0 is triggered.

[0117] The above-mentioned embodiment of the present invention provides an aperiodic SRS indication method without increasing system overhead while improving the flexibility of the aperiodic SRS.

[0118] like Figure 5 As shown, an embodiment of the present invention further provides a method for sending a non-periodic sounding reference signal, which is applied to a terminal, and the method includes:

[0119] 31: Obtain a mapping relationship between a plurality of aperiodic sounding reference signal SRS resource sets configured by a network device and a configuration of a PDCCH carrying a target SRS trigger indication;

[0120] 32: Receive a trigger indication of an aperiodic SRS sent by a network device according to the mapping relationship;

[0121] 33: Send the selected SRS resource set according to the triggering information of the non-periodic SRS.

[0122] Optionally, in step 31, at least two SRS resource sets among the multiple SRS resource sets are configured with different time slot offsets.

[0123] Optionally, in step 31, the PDCCH of the target trigger indication is configured with at least one of the following:

[0124] Search space;

[0125] Control resource sets;

[0126] Candidate physical downlink control channel PDCCH configured for the terminal;

[0127] Control channel element CCE.

[0128] Optionally, in step 32, receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes:

[0129] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0130] Optionally, in step 32, receiving trigger information of aperiodic SRS sent by a network device according to the mapping relationship includes:

[0131] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control resource set CORESET corresponding to the SRS resource set, and downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0132] Optionally, receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes:

[0133] According to the SRS resource set to be triggered and the mapping relationship, downlink control information DCI is received on a candidate physical downlink control channel PDCCH corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0134] Optionally, in step 32, receiving trigger information of aperiodic SRS sent by a network device according to the mapping relationship includes:

[0135] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control channel element CCE corresponding to the SRS resource set, and downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0136] It should be noted that the method is a terminal side method, and the above-mentioned network side method corresponds to the terminal side. All implementation methods of the above-mentioned network side method are applicable to the embodiments of the method and can achieve the same technical effect.

[0137] like Figure 6 As shown, an embodiment of the present invention further provides a triggering device 60 for a non-periodic detection reference signal, which is applied to a network device, and the device includes:

[0138] The processing module 62 is used to configure a mapping relationship between a plurality of aperiodic sounding reference signal SRS resource sets and a configuration of a PDCCH carrying a target SRS trigger indication;

[0139] The transceiver module 61 is used to send a trigger indication of the aperiodic SRS to the terminal according to the mapping relationship.

[0140] Optionally, at least two SRS resource sets among the multiple SRS resource sets are configured with different time slot offsets.

[0141] Optionally, sending a trigger indication of an aperiodic SRS to a terminal according to the mapping relationship includes:

[0142] According to the SRS resource set to be triggered and the mapping relationship, an SRS triggering indication is sent to the terminal.

[0143] Optionally, the PDCCH carrying the target trigger indication is configured with at least one of the following:

[0144] Search space;

[0145] Control resource sets;

[0146] Candidate physical downlink control channel PDCCH configured for the terminal;

[0147] Control channel element CCE.

[0148] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0149] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0150] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0151] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control resource set CORESET corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0152] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0153] According to the SRS resource set to be triggered and the mapping relationship, downlink control information DCI is sent on the candidate physical downlink control channel PDCCH corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0154] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0155] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control channel element CCE corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS set.

[0156] It should be noted that the device in this embodiment is the same as the above Figure 1 The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effects. It should be noted that the above device provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effects, and the parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be specifically described here.

[0157] The embodiment of the present invention further provides a network device 70, including:

[0158] The processor 72 is used to configure a mapping relationship between a plurality of aperiodic sounding reference signal SRS resource sets and a configuration of a PDCCH carrying a target SRS trigger indication;

[0159] The transceiver 71 is configured to send a trigger indication of the aperiodic SRS to the terminal according to the mapping relationship. Optionally, at least two of the multiple SRS resource sets are configured with different time slot offsets.

[0160] Optionally, sending a trigger indication of an aperiodic SRS to a terminal according to the mapping relationship includes:

[0161] According to the SRS resource set to be triggered and the mapping relationship, an SRS triggering indication is sent to the terminal.

[0162] Optionally, the PDCCH carrying the target trigger indication is configured with at least one of the following:

[0163] Search space;

[0164] Control resource sets;

[0165] Candidate physical downlink control channel PDCCH configured for the terminal;

[0166] Control channel element CCE.

[0167] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0168] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0169] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0170] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control resource set CORESET corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0171] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0172] According to the SRS resource set to be triggered and the mapping relationship, downlink control information DCI is sent on the candidate physical downlink control channel PDCCH corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0173] Optionally, sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes:

[0174] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control channel element CCE corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0175] It should be noted that the network device in this embodiment is the same as the above Figure 1 The network device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effect. It should be noted that the above network device provided in the embodiment of the present invention can also include a memory 73 for storing data processed by the processor 72 and data received and sent by the transceiver 71, which can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be specifically described here.

[0176] An embodiment of the present invention further provides a device for sending a non-periodic sounding reference signal, which is applied to a terminal, including:

[0177] A processing module, used to obtain a mapping relationship between a plurality of non-periodic sounding reference signal SRS resource sets configured by a network device and a configuration of a PDCCH carrying a target SRS trigger indication;

[0178] The transceiver module is used to receive the trigger indication of the non-periodic SRS sent by the network device according to the mapping relationship; and send the SRS resource set that needs to be triggered according to the trigger information of the non-periodic SRS.

[0179] Optionally, at least two SRS resource sets among the multiple SRS resource sets are configured with different time slot offsets.

[0180] Optionally, the PDCCH of the target trigger indication is configured with at least one of the following:

[0181] Search space;

[0182] Control resource sets;

[0183] Candidate physical downlink control channel PDCCH configured for the terminal;

[0184] Control channel element CCE.

[0185] Optionally, receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes:

[0186] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0187] Optionally, receiving trigger information of an aperiodic SRS sent by a network device according to the mapping relationship includes:

[0188] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control resource set CORESET corresponding to the SRS resource set, and downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0189] Optionally, receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes:

[0190] According to the SRS resource set to be triggered and the mapping relationship, downlink control information DCI is received on a candidate physical downlink control channel PDCCH corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0191] Optionally, receiving trigger information of an aperiodic SRS sent by a network device according to the mapping relationship includes:

[0192] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control channel element CCE corresponding to the SRS resource set, and downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0193] It should be noted that the device in this embodiment is the same as the above Figure 5 The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effects. It should be noted that the above device provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effects, and the parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be specifically described here.

[0194] An embodiment of the present invention further provides a terminal, including:

[0195] A processor, configured to obtain a mapping relationship between a plurality of aperiodic sounding reference signal SRS resource sets configured by a network device and a configuration of a PDCCH carrying a target SRS trigger indication;

[0196] The transceiver is used to receive a trigger indication of a non-periodic SRS sent by a network device according to the mapping relationship; and send the SRS resource set that needs to be triggered according to the trigger information of the non-periodic SRS.

[0197] Optionally, at least two SRS resource sets among the multiple SRS resource sets are configured with different time slot offsets.

[0198] Optionally, the PDCCH of the target trigger indication is configured with at least one of the following:

[0199] Search space;

[0200] Control resource sets;

[0201] Candidate physical downlink control channel PDCCH configured for the terminal;

[0202] Control channel element CCE.

[0203] Optionally, receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes:

[0204] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0205] Optionally, receiving trigger information of an aperiodic SRS sent by a network device according to the mapping relationship includes:

[0206] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control resource set CORESET corresponding to the SRS resource set, and downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0207] Optionally, receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes:

[0208] According to the SRS resource set to be triggered and the mapping relationship, downlink control information DCI is received on a candidate physical downlink control channel PDCCH corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0209] Optionally, receiving trigger information of an aperiodic SRS sent by a network device according to the mapping relationship includes:

[0210] According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on the control channel element CCE corresponding to the selected SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

[0211] It should be noted that the terminal in this embodiment is the same as the above Figure 5 The terminal corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effect. It should be noted that the above terminal provided in the embodiment of the present invention, the device may also include a memory for storing data processed by the processor and data received and sent by the transceiver, can implement all the method steps implemented in the above method embodiment, and can achieve the same technical effect, and the parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be specifically repeated here.

[0212] An embodiment of the present invention further provides a communication device, comprising: a processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method described in any one of the above items is executed.

[0213] The embodiment of the present invention further provides a computer-readable storage medium storing instructions, which, when executed on a computer, enables the computer to execute any of the above methods. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effect.

[0214] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0215] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0216] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0217] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0218] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0219] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0220] In addition, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it is understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0221] Therefore, the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device. The computing device can be a well-known general device. Therefore, the purpose of the present invention can also be achieved by simply providing a program product containing a program code that implements the method or device. That is to say, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. In addition, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order. Some steps can be performed in parallel or independently of each other.

[0222] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for triggering a non-periodic detection reference signal, characterized in that: Applied to a network device, the method comprises: Configure a mapping relationship between multiple non-periodic sounding reference signal SRS resource sets and a PDCCH configuration carrying a target SRS trigger indication; According to the mapping relationship, sending a trigger indication of the aperiodic SRS to the terminal; The PDCCH carrying the target SRS trigger indication is configured with at least one of the following: Search space; Control resource sets; Candidate physical downlink control channel PDCCH configured for the terminal; Control channel element CCE; According to the mapping relationship, sending a trigger indication of the aperiodic SRS to the terminal includes: Sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship; Sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes at least one of the following: According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on a control resource set CORESET corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, sending downlink control information DCI on a candidate physical downlink control channel PDCCH corresponding to the SRS resource set, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control channel element CCE corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

2. The triggering method of the non-periodic detection reference signal according to claim 1, characterized in that: At least two SRS resource sets among the multiple SRS resource sets are configured with different time slot offsets.

3. A method for sending a non-periodic sounding reference signal, characterized in that: Applied to a terminal, the method comprises: Acquire a mapping relationship between a plurality of aperiodic sounding reference signal SRS resource sets configured by a network device and a configuration of a PDCCH carrying a target SRS trigger indication; According to the mapping relationship, receiving a trigger indication of an aperiodic SRS sent by a network device; Sending an SRS resource set that needs to be triggered according to the triggering information of the aperiodic SRS; The PDCCH of the target SRS trigger indication is configured with at least one of the following: Search space; Control resource sets; Candidate physical downlink control channel PDCCH configured for the terminal; Control channel element CCE; Receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes at least one of the following: According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received in a search space corresponding to the SRS resource set corresponding to the selected time slot offset, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control resource set CORESET corresponding to the SRS resource set, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, receiving downlink control information DCI on a candidate physical downlink control channel PDCCH corresponding to the SRS resource set, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control channel element CCE corresponding to the SRS resource set, and downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

4. The method for sending a non-periodic sounding reference signal according to claim 3, characterized in that: At least two SRS resource sets among the multiple SRS resource sets are configured with different time slot offsets.

5. A triggering device for a non-periodic detection reference signal, characterized in that: Applied to network equipment, the device comprises: A processing module, used to configure a mapping relationship between a plurality of non-periodic sounding reference signal SRS resource sets and a configuration of a PDCCH carrying a target SRS trigger indication; A transceiver module, configured to send a trigger indication of an aperiodic SRS to a terminal according to the mapping relationship; The PDCCH carrying the target SRS trigger indication is configured with at least one of the following: Search space; Control resource sets; Candidate physical downlink control channel PDCCH configured for the terminal; Control channel element CCE; According to the mapping relationship, sending a trigger indication of the aperiodic SRS to the terminal includes: Sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship; Sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes at least one of the following: According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on a control resource set CORESET corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, sending downlink control information DCI on a candidate physical downlink control channel PDCCH corresponding to the SRS resource set, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control channel element CCE corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

6. A network device, characterized in that: include: A processor, configured to configure a mapping relationship between a plurality of non-periodic sounding reference signal SRS resource sets and a configuration of a PDCCH carrying a target SRS trigger indication; A transceiver, configured to send a trigger indication of an aperiodic SRS to a terminal according to the mapping relationship; The PDCCH carrying the target SRS trigger indication is configured with at least one of the following: Search space; Control resource sets; Candidate physical downlink control channel PDCCH configured for the terminal; Control channel element CCE; According to the mapping relationship, sending a trigger indication of the aperiodic SRS to the terminal includes: Sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship; Sending an SRS trigger indication to the terminal according to the SRS resource set to be triggered and the mapping relationship includes at least one of the following: According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent in the search space corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on a control resource set CORESET corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, sending downlink control information DCI on a candidate physical downlink control channel PDCCH corresponding to the SRS resource set, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is sent on the control channel element CCE corresponding to the SRS resource set, and the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

7. A device for transmitting a non-periodic sounding reference signal, characterized in that: Applied to terminals, including: A processing module, used to obtain a mapping relationship between a plurality of non-periodic sounding reference signal SRS resource sets configured by a network device and a configuration of a PDCCH carrying a target SRS trigger indication; A transceiver module, configured to receive a trigger indication of an aperiodic SRS sent by a network device according to the mapping relationship; and send an SRS resource set to be triggered according to the trigger information of the aperiodic SRS; The PDCCH of the target SRS trigger indication is configured with at least one of the following: Search space; Control resource sets; Candidate physical downlink control channel PDCCH configured for the terminal; Control channel element CCE; Receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes at least one of the following: According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received in a search space corresponding to the SRS resource set corresponding to the selected time slot offset, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control resource set CORESET corresponding to the SRS resource set, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, receiving downlink control information DCI on a candidate physical downlink control channel PDCCH corresponding to the SRS resource set, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control channel element CCE corresponding to the SRS resource set, and downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

8. A terminal, characterized in that: include: A processor, configured to obtain a mapping relationship between a plurality of aperiodic sounding reference signal SRS resource sets configured by a network device and a configuration of a PDCCH carrying a target SRS trigger indication; A transceiver, configured to receive a trigger indication of an aperiodic SRS sent by a network device according to the mapping relationship; and send an SRS resource set to be triggered according to the trigger information of the aperiodic SRS; The PDCCH of the target SRS trigger indication is configured with at least one of the following: Search space; Control resource sets; Candidate physical downlink control channel PDCCH configured for the terminal; Control channel element CCE; Receiving, according to the mapping relationship, a trigger indication of an aperiodic SRS sent by a network device includes at least one of the following: According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received in a search space corresponding to the SRS resource set corresponding to the selected time slot offset, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control resource set CORESET corresponding to the SRS resource set, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, receiving downlink control information DCI on a candidate physical downlink control channel PDCCH corresponding to the SRS resource set, where the downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set; According to the SRS resource set to be triggered and the mapping relationship, a physical downlink control channel PDCCH is received on a control channel element CCE corresponding to the SRS resource set, and downlink control information DCI carried by the PDCCH is used to trigger the terminal to send the SRS resource set.

9. A communication device, characterized in that: include: A processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to claim 1 or 2 or the method according to claim 3 or 4 is executed.

10. A computer-readable storage medium, characterized in that: Instructions are stored, and when the instructions are executed on a computer, the computer is caused to execute the method according to claim 1 or 2 or the method according to claim 3 or 4.

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