CN114844604A - Triggering and sending method of non-periodic sounding reference signal, terminal and equipment - Google Patents

Triggering and sending method of non-periodic sounding reference signal, terminal and equipment Download PDF

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Publication number
CN114844604A
CN114844604A CN202110139646.8A CN202110139646A CN114844604A CN 114844604 A CN114844604 A CN 114844604A CN 202110139646 A CN202110139646 A CN 202110139646A CN 114844604 A CN114844604 A CN 114844604A
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China
Prior art keywords
srs
resource set
pdcch
triggering
srs resource
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CN202110139646.8A
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Chinese (zh)
Inventor
曹昱华
徐晓东
李岩
王飞
郑毅
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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Priority to CN202110139646.8A priority Critical patent/CN114844604A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The invention provides a triggering and sending method, a terminal and equipment for an aperiodic sounding reference signal, wherein the triggering method comprises the following steps: configuring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets and a PDCCH carrying a target SRS triggering indication; and sending a triggering indication of the non-periodic SRS to the terminal according to the mapping relation. The technical scheme of the invention enables the time slot offset to be a non-fixed value, and can enhance the flexibility of triggering the non-periodic SRS, thereby reducing PDCCH blockage and ensuring that the system overhead is as small as possible.

Description

Triggering and sending method of non-periodic sounding reference signal, terminal and equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, a terminal, and a device for triggering and sending an aperiodic sounding reference signal.
Background
The PDCCH (physical downlink control channel) configures resources in units of a control resource set (CORESET). CORESET comprises a set of PRBs (physical resource blocks) in the frequency domain with a minimum granularity of 6 RB; the time domain length is 1-3 symbols, and the initial position in the time slot can be configured.
Within CORESET, there are concepts of REGs (resource element groups) and CCEs (control channel elements): 1 CCE occupies 6 REGs and 1 REG occupies 72 REs. Meanwhile, the PDCCH is formed by CCE aggregation (1, 2, 4, 8, 16), and mapping of CCE-to-REGs supports interleaving and non-interleaving. Each cell is configured with 12 CORESETs (0-11) at most;
the UE (terminal) blindly detects DCI transmitted in a PDCCH search space (SearchSpace). Unlike LTE, different search spaces in NR require higher layer parameter configuration.
The search space configuration specifies how/where the terminal searches the PDCCH candidate set. Each search space is associated with a CORESET ID (physical resource).
After determining the physical resource of the PDCCH (CORESET), searching the space type/time domain characteristic, and then searching the space blind test by the terminal. The CCE index of each PDCCH candidate within the CORESET is determined according to a hash function, e.g., AL is 4 and N _ CCE is 24, then the CCE index of PDCCH candidate (PDCCH candidate) may be 6 combinations of {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 PDCCH candidate may be determined according to a function. The terminal decodes all the candidate PDCCHs and checks with CRC.
The triggering offset of the aperiodic SRS is defined as an interval between a time when a PDCCH of the SRS (channel sounding reference signal) is triggered and a time when the SRS is transmitted. In the prior art, the slotoffset (slot offset) of the AP-SRS can be configured only at the SRS set level in RRC.
For a typical frame structure DDDSU, if slotoffset is set to 0 ~ 4, there are 8 cases in total. If slotoffset is 2, only 2 cases can be supported. This severely limits the possible PDCCH and SRS transmission locations. Limited by slotoffset, the PDCCH on some slots may be overloaded and blocked severely.
Disclosure of Invention
The technical problem to be solved by the present invention is how to provide a method, a terminal and a device for triggering and sending an aperiodic sounding reference signal, which are used for solving the problems that in the prior art, due to the limitation of time slot offset, a PDCCH on some time slots may be overloaded and blocked seriously.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a triggering method of an aperiodic sounding reference signal is applied to a network device, and the method comprises the following steps:
configuring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets and a PDCCH carrying a target SRS triggering indication;
and sending a triggering indication of the non-periodic SRS to the terminal according to the mapping relation.
Optionally, at least two SRS resource sets in the plurality of SRS resource sets have different configured slot offsets.
Optionally, sending a triggering indication of the aperiodic SRS to the terminal according to the mapping relationship includes:
and sending an SRS triggering instruction to the terminal according to the SRS resource set required to be triggered and the mapping relation.
Optionally, the PDCCH carrying the target trigger indication is configured with at least one of the following items:
searching a space;
controlling the resource set;
configuring a candidate Physical Downlink Control Channel (PDCCH) for a terminal;
the control channel element CCE.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) in a search space corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) on a control resource set (CORESET) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending Downlink Control Information (DCI) on a candidate Physical Downlink Control Channel (PDCCH) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein the DCI carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) on a Control Channel Element (CCE) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein DCI (downlink control information) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
The embodiment of the invention also provides a method for sending the aperiodic sounding reference signal, which is applied to a terminal and comprises the following steps:
acquiring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets configured by network equipment and the configuration of a Physical Downlink Control Channel (PDCCH) carrying a target SRS triggering indication;
receiving a triggering indication of the aperiodic SRS sent by the network equipment according to the mapping relation;
and sending the selected SRS resource set according to the triggering information of the aperiodic SRS.
Optionally, at least two SRS resource sets in the plurality of SRS resource sets have different configured slot offsets.
Optionally, the PDCCH indicated by the target trigger is configured with at least one of the following items:
searching a space;
controlling the resource set;
configuring a candidate Physical Downlink Control Channel (PDCCH) for a terminal;
the control channel element CCE.
Optionally, receiving, according to the mapping relationship, a triggering indication of an aperiodic SRS sent by a network device includes:
and receiving a Physical Downlink Control Channel (PDCCH) in a search space corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) borne by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, receiving, according to the mapping relationship, triggering information of an aperiodic SRS sent by a network device, where the triggering information includes:
according to the SRS resource set needing to be triggered and the mapping relation, 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 for triggering a terminal to send the SRS resource set.
Optionally, receiving, according to the mapping relationship, a triggering indication of an aperiodic SRS sent by a network device includes:
and receiving Downlink Control Information (DCI) on a candidate Physical Downlink Control Channel (PDCCH) corresponding to the SRS resource set according to the SRS resource set which needs to be triggered and the mapping relation, wherein the DCI carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, receiving, according to the mapping relationship, triggering information of an aperiodic SRS sent by a network device, where the triggering information includes:
and receiving a Physical Downlink Control Channel (PDCCH) on a Control Channel Element (CCE) corresponding to the SRS resource set according to the SRS resource set which needs to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
The embodiment of the present invention further provides a triggering apparatus for an aperiodic sounding reference signal, which is applied to a network device, and the apparatus includes:
the processing module is used for configuring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets and a PDCCH carrying a target SRS trigger indication;
and the transceiver module is used for sending the triggering indication of the aperiodic SRS to the terminal according to the mapping relation.
An embodiment of the present invention further provides a network device, including:
the processor is used for configuring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets and the configuration of a PDCCH carrying a target SRS triggering indication;
and the transceiver is used for sending the triggering indication of the aperiodic SRS to the terminal according to the mapping relation.
The embodiment of the present invention further provides a device for sending an aperiodic sounding reference signal, which is applied to a terminal and includes:
the processing module is used for acquiring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets configured by the network equipment and the configuration of a Physical Downlink Control Channel (PDCCH) carrying the target SRS triggering indication;
the receiving and sending module is used for receiving the triggering indication of the non-periodic SRS sent by the network equipment according to the mapping relation; and sending the SRS resource set needing to be triggered according to the triggering information of the aperiodic SRS.
An embodiment of the present invention further provides a terminal, including:
the processor is used for acquiring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets configured by the network equipment and the configuration of a Physical Downlink Control Channel (PDCCH) carrying the target SRS triggering indication;
the transceiver is used for receiving the triggering indication of the aperiodic SRS sent by the network equipment according to the mapping relation; and sending the SRS resource set needing to be triggered according to the triggering information of the aperiodic SRS.
An embodiment of the present invention further provides a communication device, including: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any of the above.
Embodiments of the present invention also provide a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform a method as described in any one of the above.
The scheme of the invention at least comprises the following beneficial effects:
the embodiment of the invention enables the slot offset to take a non-fixed value by allowing the base station to configure a plurality of AP-SRS sets for the UE in the RRC, wherein the slot offsets corresponding to at least two AP-SRS sets are different.
Drawings
Fig. 1 is a schematic flowchart of a triggering method of an aperiodic sounding reference signal on a network side according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an SRS transmission flow under the candidate-SRS set mapping relationship according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a candidate-SRS set mapping relationship according to an embodiment of the invention;
fig. 4 is a schematic diagram of a CCE index mapping relationship according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a method for transmitting an aperiodic sounding reference signal at a terminal side according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a triggering device for an aperiodic sounding reference signal at a network device side according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a method for triggering an aperiodic sounding reference signal, which is applied to a network device, and the method includes:
step 11, configuring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets and a PDCCH carrying a target SRS triggering indication;
and 12, sending a triggering indication of the aperiodic SRS to the terminal according to the mapping relation.
The embodiment of the invention allows the base station to configure a plurality of AP-SRS sets (non-periodic SRS sets) for the UE in the RRC, wherein at least two slot offsets (slot offsets) corresponding to the AP-SRS sets are different.
In an optional embodiment of the present invention, in step 11, at least two SRS resource sets in the multiple SRS resource sets have different configured slot offsets.
In an optional embodiment of the present invention, in step 12, sending a triggering indication of an aperiodic SRS to a terminal according to the mapping relationship includes:
and sending SRS triggering indication to the terminal according to the SRS resource set which needs to be triggered and the mapping relation.
In an optional embodiment of the present invention, in step 11, the PDCCH carrying the target trigger indication at least configures one of the following items:
searching a space;
controlling the resource set;
configuring a candidate Physical Downlink Control Channel (PDCCH) for a terminal;
the control channel element CCE.
In the embodiment of the invention, the target trigger information is set, and the indication of the selected AP-SRS set through the triggered DCI can be realized.
In an optional embodiment of the present invention, in step 12, sending an SRS trigger instruction to the terminal according to the SRS resource set to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) in a search space corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
This embodiment of the present invention is specifically realized by the following steps:
1) the base station configures a plurality of AP-SRS resource sets for the UE: { SRS set1, SRS set2, SRS set3 … } which slot offsets are different from one another;
2) the base station sets mapping relations (1 to 1 or more than 1) between associated searchspace sets { searchspace1, searchspace2, searchspace3 … } and { SRS set1, SRS set2 and SRS set3 … } in PDCCH-Config;
for example: searchspace1-SRS set1, searchspace2-SRS set2 … or searchspace1/2-SRS set1, searchspace3/4-SRS set2 …,
this mapping relationship may be configured by RRC, or may be updatable by MAC CE.
3) After the base station selects an AP-SRS set of a proper slot offset, transmitting a PDCCH (physical downlink control channel) at a searchspace(s) corresponding to the SRS set;
4) after receiving the DCI (the DCI is carried by the PDCCH), the UE implicitly determines the triggered AP-SRS according to the searchspace(s) to which the carried PDDCH belongs.
In an optional embodiment of the present invention, in step 12, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) on a control resource set (CORESET) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
This embodiment of the present invention is specifically realized by the following steps:
1) the base station configures a plurality of AP-SRS resource sets for the UE: { SRS set1, SRS set2, SRS set3 … } which slot offsets are different from one another;
2) the base station sets the mapping relation (1 to 1 or more than 1) between the associated CORESET set { CORESET1, CORESET2, CORESET3 … } and { SRS set1, SRS set2, SRS set3 … } in the PDCCH-Config;
for example: CORESET1-SRS set1, CORESET2-SRS set2 … or CORESET1/2-SRS set1, CORESET3/4-SRS set2 …,
this mapping relationship may be configured by RRC, or may be updatable by MAC CE.
3) After the base station selects an AP-SRS set of a proper slot offset, a CORESET(s) corresponding to the SRS set sends a PDCCH;
4) and after receiving the DCI, the UE implicitly determines the triggered AP-SRS according to the CORESET(s) of the carried PDDCH.
In an optional embodiment of the present invention, in step 12, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending Downlink Control Information (DCI) on a candidate Physical Downlink Control Channel (PDCCH) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein the DCI carried by the PDCCH is used for triggering the terminal to send the SRS.
As shown in fig. 2, this embodiment of the present invention is specifically realized by the following steps:
1) similar to the method using search space implicit indication, the base station configures the PDCCH and SRS for the UE, and the mapping relationship of multiple PDCCH candidates and AP-SRS sets of the PDCCH.
2) After selecting an AP-SRS set of a proper slot offset, the base station sends a PDCCH in a corresponding PDCCH candidate(s);
3) after receiving the PDCCH, the UE determines the AP-SRS set required to be triggered by the base station according to the candidate(s) index where the PDCCH is located and sends the SRS.
As shown in fig. 3, it is one of the candidate-SRS set mapping relationships of the embodiment of the present invention: candidate 0-SRS set 0, candidate 1-SRS set1, candidate2-SRS set2, candidate 3-SRS set 3.
In an optional embodiment of the present invention, in step 12, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) on a Control Channel Element (CCE) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein DCI (downlink control information) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
This embodiment of the present invention is specifically realized by the following steps:
1) the base station configures PDCCH and SRS for the UE, and sets the mapping relation between the CCE index of the PDCCH and the AP-SRS set.
2) After selecting AP-SRS set of proper slot offset, the base station sends PDCCH on the corresponding CCE
3) After receiving the PDCCH, the UE determines the AP-SRS set required to be triggered by the base station according to the CCE index where the PDCCH is located and sends the SRS;
for example: as shown in FIG. 4, if the UE receives the PDCCH carried on CCE {0,1,2,3}, SRS set 0 is triggered.
The embodiment of the invention improves the flexibility of the aperiodic SRS and simultaneously provides the aperiodic SRS indicating method on the basis of not increasing the system overhead.
As shown in fig. 5, an embodiment of the present invention further provides a method for sending an aperiodic sounding reference signal, which is applied to a terminal, and the method includes:
31: acquiring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets configured by network equipment and a PDCCH configuration for bearing a target SRS trigger indication;
32: receiving a triggering indication of the aperiodic SRS sent by the network equipment according to the mapping relation;
33: and sending the selected SRS resource set according to the triggering information of the aperiodic SRS.
Optionally, in step 31, at least two SRS resource sets in the plurality of SRS resource sets have different configured slot offsets.
Optionally, in step 31, the PDCCH indicated by the target trigger is configured with at least one of the following items:
searching a space;
controlling the resource set;
configuring a candidate Physical Downlink Control Channel (PDCCH) for a terminal;
the control channel element CCE.
Optionally, in step 32, receiving, according to the mapping relationship, a triggering indication of an aperiodic SRS sent by a network device, where the triggering indication includes:
and receiving a Physical Downlink Control Channel (PDCCH) in a search space corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, in step 32, receiving, according to the mapping relationship, triggering information of an aperiodic SRS sent by a network device, where the triggering information includes:
receiving a Physical Downlink Control Channel (PDCCH) on a control resource set (CORESET) corresponding to the SRS resource set according to the SRS resource set which needs to be triggered and selected and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, receiving, according to the mapping relationship, a triggering indication of an aperiodic SRS sent by a network device includes:
and receiving Downlink Control Information (DCI) on a candidate Physical Downlink Control Channel (PDCCH) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein the DCI carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, in step 32, receiving, according to the mapping relationship, triggering information of an aperiodic SRS sent by a network device, where the triggering information includes:
and receiving a Physical Downlink Control Channel (PDCCH) on a Control Channel Element (CCE) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein DCI (downlink control information) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
The method is a terminal-side method, the network-side method corresponds to the terminal-side method, and all implementations of the network-side method are applicable to the embodiment of the method, so that the same technical effects can be achieved.
As shown in fig. 6, an embodiment of the present invention further provides an aperiodic sounding reference signal triggering apparatus 60, which is applied to a network device, and the apparatus includes:
a processing module 62, configured to configure a mapping relationship between multiple aperiodic sounding reference signal SRS resource sets and a PDCCH carrying a target SRS trigger indication;
and the transceiver module 61 is configured to send a triggering indication of the aperiodic SRS to the terminal according to the mapping relationship.
Optionally, at least two SRS resource sets in the plurality of SRS resource sets have different configured slot offsets.
Optionally, sending a triggering indication of the aperiodic SRS to the terminal according to the mapping relationship includes:
and sending an SRS triggering instruction to the terminal according to the SRS resource set required to be triggered and the mapping relation.
Optionally, the PDCCH carrying the target trigger indication is configured with at least one of the following items:
searching a space;
controlling the resource set;
configuring a candidate Physical Downlink Control Channel (PDCCH) for a terminal;
the control channel element CCE.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) in a search space corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) on a control resource set (CORESET) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending Downlink Control Information (DCI) on a candidate Physical Downlink Control Channel (PDCCH) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein the DCI carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) on a Control Channel Element (CCE) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein DCI (downlink control information) carried by the PDCCH is used for triggering a terminal to send the SRS set.
It should be noted that the apparatus in this embodiment is an apparatus corresponding to the method shown in fig. 1, and the implementation manners in the above embodiments are all applicable to the embodiment of the apparatus, and the same technical effects can be achieved. It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.
An embodiment of the present invention further provides a network device 70, including:
a processor 72, configured to configure a mapping relationship between multiple aperiodic sounding reference signal SRS resource sets and a PDCCH carrying a target SRS trigger indication;
and the transceiver 71 is configured to send a triggering indication of the aperiodic SRS to the terminal according to the mapping relationship. Optionally, at least two SRS resource sets in the plurality of SRS resource sets have different configured slot offsets.
Optionally, sending a triggering indication of the aperiodic SRS to the terminal according to the mapping relationship includes:
and sending an SRS triggering instruction to the terminal according to the SRS resource set required to be triggered and the mapping relation.
Optionally, the PDCCH carrying the target trigger indication is configured with at least one of the following items:
searching a space;
controlling the resource set;
configuring a candidate Physical Downlink Control Channel (PDCCH) for a terminal;
the control channel element CCE.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) in a search space corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) on a control resource set (CORESET) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending Downlink Control Information (DCI) on a candidate Physical Downlink Control Channel (PDCCH) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein the DCI carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, sending an SRS trigger instruction to the terminal according to the SRS resource set that needs to be triggered and the mapping relationship, where the SRS trigger instruction includes:
and sending a Physical Downlink Control Channel (PDCCH) on a Control Channel Element (CCE) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein DCI (downlink control information) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
It should be noted that the network device in this embodiment is a network device corresponding to the method shown in fig. 1, and the implementation manners in the above embodiments are all applied to the embodiment of the apparatus, and the same technical effects can be achieved. It should be noted that, in the network device provided in the embodiment of the present invention, the apparatus may further include a memory 73, configured to store data processed by the processor 72 and data received and transmitted by the transceiver 71, so that all the method steps implemented by the foregoing method embodiment can be implemented, and the same technical effect can be achieved.
The embodiment of the present invention further provides a device for sending an aperiodic sounding reference signal, which is applied to a terminal and includes:
the processing module is used for acquiring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets configured by the network equipment and the configuration of a Physical Downlink Control Channel (PDCCH) carrying the target SRS triggering indication;
the receiving and sending module is used for receiving the triggering indication of the non-periodic SRS sent by the network equipment according to the mapping relation; and sending the SRS resource set needing to be triggered according to the triggering information of the aperiodic SRS.
Optionally, at least two SRS resource sets in the plurality of SRS resource sets have different configured slot offsets.
Optionally, the PDCCH indicated by the target trigger is configured with at least one of the following items:
searching a space;
controlling the resource set;
configuring a candidate Physical Downlink Control Channel (PDCCH) for a terminal;
the control channel element CCE.
Optionally, receiving, according to the mapping relationship, a triggering indication of an aperiodic SRS sent by a network device includes:
and receiving a Physical Downlink Control Channel (PDCCH) in a search space corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, receiving, according to the mapping relationship, triggering information of an aperiodic SRS sent by a network device, where the triggering information includes:
according to the SRS resource set needing to be triggered and the mapping relation, 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 for triggering a terminal to send the SRS resource set.
Optionally, receiving, according to the mapping relationship, a triggering indication of an aperiodic SRS sent by a network device includes:
and receiving Downlink Control Information (DCI) on a candidate Physical Downlink Control Channel (PDCCH) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein the DCI carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, receiving, according to the mapping relationship, triggering information of an aperiodic SRS sent by a network device includes:
and receiving a Physical Downlink Control Channel (PDCCH) on a Control Channel Element (CCE) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein DCI (downlink control information) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
It should be noted that the apparatus in this embodiment is an apparatus corresponding to the method shown in fig. 5, and the implementation manners in the above embodiments are all applicable to the embodiment of the apparatus, and the same technical effects can be achieved. It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.
An embodiment of the present invention further provides a terminal, including:
the processor is used for acquiring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets configured by the network equipment and the configuration of a Physical Downlink Control Channel (PDCCH) carrying the target SRS triggering indication;
the transceiver is used for receiving the triggering indication of the aperiodic SRS sent by the network equipment according to the mapping relation; and sending the SRS resource set needing to be triggered according to the triggering information of the aperiodic SRS.
Optionally, at least two SRS resource sets in the plurality of SRS resource sets have different configured slot offsets.
Optionally, the PDCCH indicated by the target trigger is configured with at least one of the following items:
searching a space;
controlling the resource set;
configuring a candidate Physical Downlink Control Channel (PDCCH) for a terminal;
the control channel element CCE.
Optionally, receiving, according to the mapping relationship, a triggering indication of an aperiodic SRS sent by a network device includes:
and receiving a Physical Downlink Control Channel (PDCCH) in a search space corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, receiving, according to the mapping relationship, triggering information of an aperiodic SRS sent by a network device, where the triggering information includes:
according to the SRS resource set needing to be triggered and the mapping relation, 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 for triggering a terminal to send the SRS resource set.
Optionally, receiving, according to the mapping relationship, a triggering indication of an aperiodic SRS sent by a network device includes:
and receiving Downlink Control Information (DCI) on a candidate Physical Downlink Control Channel (PDCCH) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein the DCI carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
Optionally, receiving, according to the mapping relationship, triggering information of an aperiodic SRS sent by a network device, where the triggering information includes:
and receiving a Physical Downlink Control Channel (PDCCH) on a Control Channel Element (CCE) corresponding to the selected SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
It should be noted that the terminal in this embodiment is a terminal corresponding to the method shown in fig. 5, and the implementation manners in the above embodiments are all applied to the embodiment of the apparatus, and the same technical effects can be achieved. It should be noted that, in the terminal provided in the embodiment of the present invention, the apparatus may further include a memory configured to store data processed by the processor and data received and transmitted by the transceiver, so that all the method steps implemented by the foregoing method embodiment can be implemented, and the same technical effect can be achieved.
An embodiment of the present invention further provides a communication device, including: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any of the above.
Embodiments of the present invention also provide a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method of any of the above. All the implementation manners in the above method embodiment are applicable to this embodiment, and the same technical effect can be achieved.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.
Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (21)

1. A triggering method of an aperiodic sounding reference signal is applied to a network device, and the method comprises the following steps:
configuring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets and a PDCCH carrying a target SRS triggering indication;
and sending a triggering indication of the non-periodic SRS to the terminal according to the mapping relation.
2. The method of claim 1, wherein at least two SRS resource sets of the plurality of SRS resource sets are configured with different slot offsets.
3. The method of claim 2, wherein the step of sending the triggering indication of the aperiodic SRS to the terminal according to the mapping relationship comprises:
and sending an SRS triggering instruction to the terminal according to the SRS resource set required to be triggered and the mapping relation.
4. The method for triggering the aperiodic sounding reference signal in claim 3, wherein the PDCCH carrying the target trigger indication is configured with at least one of:
searching a space;
controlling the resource set;
configuring a candidate Physical Downlink Control Channel (PDCCH) for a terminal;
the control channel element CCE.
5. The method of claim 4, wherein the sending the SRS triggering indication to the terminal according to the SRS resource set to be triggered and the mapping relation comprises:
and sending a Physical Downlink Control Channel (PDCCH) in a search space corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
6. The method of claim 4, wherein the sending the SRS triggering indication to the terminal according to the SRS resource set to be triggered and the mapping relation comprises:
and sending a Physical Downlink Control Channel (PDCCH) on a control resource set (CORESET) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
7. The method of claim 4, wherein the sending the SRS triggering indication to the terminal according to the SRS resource set to be triggered and the mapping relation comprises:
and sending Downlink Control Information (DCI) on a candidate Physical Downlink Control Channel (PDCCH) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein the DCI carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
8. The method of claim 4, wherein the sending the SRS triggering indication to the terminal according to the SRS resource set to be triggered and the mapping relation comprises:
and sending a Physical Downlink Control Channel (PDCCH) on a Control Channel Element (CCE) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein DCI (downlink control information) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
9. A method for transmitting an aperiodic sounding reference signal, which is applied to a terminal, includes:
acquiring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets configured by network equipment and the configuration of a Physical Downlink Control Channel (PDCCH) carrying a target SRS triggering indication;
receiving a triggering indication of the aperiodic SRS sent by the network equipment according to the mapping relation;
and sending the selected SRS resource set according to the triggering information of the aperiodic SRS.
10. The method of claim 9, wherein at least two SRS resource sets of the plurality of SRS resource sets are configured with different slot offsets.
11. The method of claim 9, wherein the PDCCH of the target trigger indication is configured with at least one of the following items:
searching a space;
controlling the resource set;
configuring a candidate Physical Downlink Control Channel (PDCCH) for a terminal;
the control channel element CCE.
12. The method of claim 11, wherein receiving the triggering indication of the aperiodic SRS from the network device according to the mapping relationship comprises:
and receiving a Physical Downlink Control Channel (PDCCH) in a search space corresponding to the SRS resource set corresponding to the selected time slot offset according to the SRS resource set required to be triggered and the mapping relation, wherein Downlink Control Information (DCI) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
13. The method of claim 11, wherein receiving triggering information of an aperiodic Sounding Reference Signal (SRS) sent by a network device according to the mapping relationship comprises:
according to the SRS resource set needing to be triggered and the mapping relation, 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 for triggering a terminal to send the SRS resource set.
14. The method according to claim 11, wherein downlink control information DCI is received on a physical downlink control channel PDCCH candidate corresponding to the SRS resource set according to the SRS resource set that needs to be triggered and the mapping relationship, and the downlink control information DCI carried by the PDCCH is used to trigger a terminal to transmit the SRS resource set.
15. The method as claimed in claim 11, wherein the receiving triggering information of the aperiodic SRS from the network device according to the mapping relationship comprises:
and receiving a Physical Downlink Control Channel (PDCCH) on a Control Channel Element (CCE) corresponding to the SRS resource set according to the SRS resource set required to be triggered and the mapping relation, wherein DCI (downlink control information) carried by the PDCCH is used for triggering a terminal to send the SRS resource set.
16. An apparatus for triggering an aperiodic sounding reference signal, which is applied to a network device, the apparatus comprising:
the processing module is used for configuring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets and a PDCCH carrying a target SRS trigger indication;
and the transceiver module is used for sending the triggering indication of the aperiodic SRS to the terminal according to the mapping relation.
17. A network device, comprising:
the processor is used for configuring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets and the configuration of a PDCCH carrying a target SRS triggering indication;
and the transceiver is used for sending the triggering indication of the aperiodic SRS to the terminal according to the mapping relation.
18. An apparatus for transmitting an aperiodic sounding reference signal, which is applied to a terminal, includes:
the processing module is used for acquiring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets configured by the network equipment and the configuration of a Physical Downlink Control Channel (PDCCH) carrying the target SRS triggering indication;
the receiving and sending module is used for receiving the triggering indication of the non-periodic SRS sent by the network equipment according to the mapping relation; and sending the SRS resource set needing to be triggered according to the triggering information of the aperiodic SRS.
19. A terminal, comprising:
the processor is used for acquiring a mapping relation between a plurality of aperiodic Sounding Reference Signal (SRS) resource sets configured by the network equipment and the configuration of a Physical Downlink Control Channel (PDCCH) carrying the target SRS triggering indication;
the transceiver is used for receiving the triggering indication of the aperiodic SRS sent by the network equipment according to the mapping relation; and sending the SRS resource set needing to be triggered according to the triggering information of the aperiodic SRS.
20. A communication device, comprising: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any of claims 1 to 8 or the method of any of claims 9 to 15.
21. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 8 or the method of any one of claims 9 to 15.
CN202110139646.8A 2021-02-01 2021-02-01 Triggering and sending method of non-periodic sounding reference signal, terminal and equipment Pending CN114844604A (en)

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