CN114585067B

CN114585067B - SRS power control indication method, resource cluster division method and equipment

Info

Publication number: CN114585067B
Application number: CN202011391238.3A
Authority: CN
Inventors: 施源; 塔玛拉卡·拉盖施
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2024-06-07
Anticipated expiration: 2040-12-02
Also published as: WO2022117039A9; WO2022117039A1; CN114585067A

Abstract

The embodiment of the application discloses a power control indication method of SRS, a partitioning method of resource clusters and equipment, which can solve the problem that the power control of SRS with independent TRP can not be realized in a multi-TRP scene. The method comprises the following steps: the terminal receives Downlink Control Information (DCI), wherein the DCI comprises a target Transmission Power Control (TPC) domain set, and the target TPC domain set is used for indicating power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier; and sending SRS according to the power control parameters. The embodiment of the application can realize independent power control of SRS under each TRP under a multi-TRP scene, and improve the transmission efficiency of SRS.

Description

SRS power control indication method, resource cluster division method and equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a power control indication method of a Sounding reference signal (Sounding REFERENCE SIGNAL, SRS), a resource cluster dividing method and equipment (the equipment can refer to a terminal or network side equipment).

Background

As a fifth generation mobile communication system, a New Radio (NR) needs to support more unprecedented application scenarios, and also needs to support a traditional frequency band, a New high frequency band and a beam mode at the same time, which brings great challenges to the design of power control.

In the related art, only power control of a Sounding reference signal (Sounding REFERENCE SIGNAL, SRS) in a single transmit receive node (Transmission Receiver Point, TRP) scenario is supported. As technology advances, a scenario supporting multiple TRPs is required. In a multi-TRP scenario, it would become necessary how to achieve power control of the TRP independent SRS, but no effective solution has been given in the related art.

Disclosure of Invention

The embodiment of the application provides a power control indication method of SRS, a partitioning method of resource clusters and equipment, which can solve the problem that the power control of SRS with independent TRP can not be realized in a multi-TRP scene.

In a first aspect, a power control indication method for SRS is provided, where the method includes: the terminal receives Downlink Control Information (DCI), wherein the DCI comprises a target Transmission Power Control (TPC) domain set, and the target TPC domain set is used for indicating power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier; and sending SRS according to the power control parameters.

In a second aspect, there is provided a method for partitioning a resource cluster of an SRS, the method comprising:

The terminal determines at least two SRS resource clusters; wherein the SRS resource clusters include SRS resource sets and/or SRS resources, and the at least two SRS resource clusters are divided according to one of the following manners:

the configuration sequence of the SRS resource set or the sequence of the identification ID;

the configuration sequence of the SRS resources or the sequence of the identification IDs;

a sequence of the SRS resource cluster;

A sequence of the SRS resource;

parameters associated with the SRS resource set.

In a third aspect, a power control indication method for SRS is provided, where the method includes: the network side equipment sends DCI, wherein the DCI comprises a target Transmission Power Control (TPC) domain set, and the target TPC domain set is used for indicating power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier; and receiving SRS, wherein the SRS is sent by the terminal according to the power control parameters.

In a fourth aspect, a method for partitioning a resource cluster of an SRS is provided, where the method includes:

The network side equipment determines at least two SRS resource clusters; wherein the SRS resource clusters include SRS resource sets and/or SRS resources, and the at least two SRS resource clusters are divided according to one of the following manners:

a sequence of the SRS resource cluster;

A sequence of the SRS resource;

parameters associated with the SRS resource set.

In a fifth aspect, there is provided a terminal comprising: a receiving module, configured to receive DCI, where the DCI includes a target TPC domain set, where the target TPC domain set is configured to indicate power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier; and the sending module is used for sending SRS according to the power control parameters.

In a sixth aspect, there is provided a terminal comprising:

A determining module, configured to determine at least two SRS resource clusters; wherein the SRS resource clusters include SRS resource sets and/or SRS resources, and the at least two SRS resource clusters are divided according to one of the following manners:

a sequence of the SRS resource cluster;

A sequence of the SRS resource;

parameters associated with the SRS resource set.

In a seventh aspect, there is provided a network-side device, including:

A sending module, configured to send DCI, where the DCI includes a target TPC domain set, where the target TPC domain set is configured to indicate power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier; and the receiving module is used for receiving SRS, and the SRS is sent by the terminal according to the power control parameters.

An eighth aspect provides a network-side device, including:

a sequence of the SRS resource cluster;

A sequence of the SRS resource;

parameters associated with the SRS resource set.

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

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

In an eleventh aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the method according to any of the first to fourth aspects.

In a twelfth aspect, there is provided a computer program product comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the method according to any of the first to fourth aspects.

In a thirteenth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor, the processor being for running a program or instructions to implement the method according to any one of the first to fourth aspects.

In the embodiment of the present application, DCI received by a terminal includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier. The embodiment of the application can realize the independent power control of the SRS under each TRP, solve the problem that the power control of the SRS with independent TRP can not be realized under a multi-TRP scene, and improve the transmission efficiency of the SRS.

Drawings

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

Fig. 2 is a schematic flowchart of a power control indication method of an SRS according to an embodiment of the present application;

FIG. 3 is a schematic flow chart of a method of partitioning resource clusters of SRS according to one embodiment of the application;

Fig. 4 is a schematic flowchart of a power control indication method of an SRS according to another embodiment of the present application;

fig. 5 is a schematic flow chart of a method of partitioning resource clusters of an SRS according to another embodiment of the application;

fig. 6 is a schematic structural view of a terminal according to an embodiment of the present application;

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

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

Fig. 9 is a schematic structural diagram of a network side device according to another embodiment of the present application;

fig. 10 is a schematic structural view of a communication device according to an embodiment of the present application;

Fig. 11 is a schematic structural view of a terminal according to an embodiment of the present application;

fig. 12 is a schematic diagram of a network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate, such that embodiments of the application may be practiced otherwise than as specifically illustrated and described herein, and that the "first" and "second" distinguishing between objects generally being of the same type, and not necessarily limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

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

Fig. 1 shows a schematic diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a terminal device or a User Equipment (UE), and the terminal 11 may be a terminal-side device such as a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (ultra-Mobile Personal Computer, UMPC), a Mobile internet device (Mobile INTERNET DEVICE, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), and the wearable device includes: a bracelet, earphone, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, where the base station may be called a node B, an evolved node B, an access Point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a Basic service set (Basic SERVICE SET, BSS), an Extended service set (Extended SERVICE SET, ESS), a node B, an evolved node B (eNB), a next generation node B (gNB), a home node B, a home evolved node B, a WLAN access Point, a WiFi node, a transmission and reception Point (TRANSMITTING RECEIVING Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that, in the embodiment of the present application, only a base station in an NR system is taken as an example, but a specific type of the base station is not limited.

The power control indication method, the resource cluster division method and the equipment (the equipment may refer to a terminal or network side equipment) of the Sounding REFERENCE SIGNAL, SRS provided by the embodiment of the present application are described in detail below by means of specific embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 2, one embodiment of the present application provides a power control indication method 200 of an SRS, which may be performed by a terminal, in other words, by software or hardware installed in the terminal, the method including the following steps.

S202: the terminal receives downlink control information (Downlink Control Information, DCI) including a set of target transmit power control (Transmit Power Control, TPC) fields for indicating power control parameters corresponding to each of a plurality of SRS resource clusters in at least one uplink carrier.

S204: and sending SRS according to the power control parameters.

In this embodiment, one or more TPC fields may be included in the set of target TPC fields. Optionally, each TPC field corresponds to each uplink carrier one by one, and one TPC field is used to indicate a power control parameter corresponding to each of the plurality of SRS resource clusters in one uplink carrier, where the power control parameter may be a closed loop power adjustment amount or the like. For example, when the number of SRS resource clusters in a certain uplink carrier is two, one TPC field corresponding to the uplink carrier may be used to indicate the power control parameters corresponding to the two SRS resource clusters. Optionally, one uplink carrier may also correspond to multiple TPC fields, where there are multiple SRS resource clusters in the uplink carrier, and one TPC field is used to indicate a power control parameter corresponding to one SRS resource cluster. For example, when the number of SRS resource clusters in a certain uplink carrier is two, two TPC fields corresponding to the uplink carrier may be used to indicate power control parameters corresponding to the two SRS resource clusters, respectively.

In this embodiment, one SRS resource cluster may correspond to one transmission-reception point (Transmission and Reception Point, TRP), so that power control for SRS in the SRS resource cluster of multiple TRPs may be implemented through DCI.

The SRS resource clusters referred to in the various embodiments of the present application generally include (or are associated with) one or more SRS resource sets, each of which includes (or is associated with) one or more SRS resources. It should be noted that, SRS resource clusters, such as SRS clusters, sets of SRS resource sets, and the like, may also be described by other technical terms.

In the power control indication method for SRS provided in the embodiment of the present application, DCI received by a terminal includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to each of a plurality of SRS resource clusters in at least one uplink carrier. The embodiment of the application is convenient for realizing the independent power control of the SRS under each TRP, can solve the problem that the power control of the SRS with independent TRP can not be realized under a multi-TRP scene, and improves the transmission efficiency of the SRS.

In order to describe the power control indication method of SRS provided in the embodiment of the present application in detail, the following description will describe embodiment 100 in several cases.

Case one

In this case one, the indication method of TPC field is described for DCI of type (type) a in the case of method 1 and method 2.

Method 1: optionally, the DCI is a type a, a plurality of TPC domains in the target TPC domain set correspond to a plurality of uplink carriers indicated by a high-level parameter one by one, and one TPC domain indicates a power control parameter corresponding to each of a plurality of SRS resource clusters in one uplink carrier. For example, in DCI, TPC fields in a type a transport block (block) correspond to uplink carriers indicated in carrier indexes (cc-IndexInOneCC-Set) in a carrier resource Set one by one, and one TPC field indicates power control parameters corresponding to each of multiple SRS resource clusters in one uplink carrier.

In one example, the overhead of the TPC field is a fixed value, and one TPC field indicates power control parameters corresponding to each of a plurality of (e.g., two) SRS resource clusters in one uplink carrier. For example, the overhead of one TPC field is fixed to 4 bits (bits), containing power control parameter modification commands for two SRS resource clusters. In this example, for the case where the SRS resource cluster is not configured, the terminal does not need to interpret the indication field (corresponding to the SRS resource cluster that is not configured) in order to save the overhead of the terminal.

In another example, the overhead of the TPC domain is related to the number of SRS resource clusters within the uplink carrier corresponding to the TPC domain. That is, the overhead of one TPC field is related to the number of SRS resource clusters configured in the uplink carrier indicated in cc-IndexInOneCC-Set. For example, if the number of SRS resource clusters in a certain carrier is 1, the overhead of the TPC domain corresponding to the carrier is2 bits; if the number of SRS resource clusters in a certain carrier is2, the cost of the TPC domain corresponding to the carrier is 4 bits.

Method 2: optionally, the DCI is type a, the target TPC domain set includes a first TPC domain set and a second TPC domain set, the first TPC domain set includes a plurality of TPC domains, the second TPC domain set includes one or more TPC domains, any one TPC domain in the first TPC domain set and the second TPC domain set indicates a power control parameter of one SRS resource cluster in one uplink carrier, where one uplink carrier may include a plurality of SRS resource clusters. Compared with the prior art, the embodiment has the advantages that one TPC domain in one type a block in DCI corresponds to one SRS resource cluster in an uplink carrier indicated in cc-IndexInOneCC-Set by additionally adding a TPC domain Set.

Optionally, the TPC fields in the first TPC field set and the TPC fields in the second TPC field set are in one-to-one correspondence with the uplink carrier indicated by the higher layer parameter.

Subsequent embodiments may refer to the first TPC domain set as a base TPC domain set and the second TPC domain set as an additional TPC domain set. In this example, the TPC domain sequence in the additional TPC domain Set and the TPC domain sequence in the base TPC domain Set are in one-to-one correspondence with the uplink carrier sequence indicated in cc-IndexInOneCC-Set.

Optionally, the order of the plurality of TPC domains in the first TPC domain set and the one or more TPC domains in the second TPC domain set satisfies one of: an expansion sequence corresponding mode; the staggered sequence corresponds to the mode.

The above-described extension order correspondence manner and the interleaving order correspondence manner will be described below in several examples, respectively.

The expansion sequence corresponding mode comprises the following steps: the TPC domains in the second TPC domain set are located behind or in front of the TPC domains in the first TPC domain set; namely: the extended sequence corresponds to the manner that the TPC domains in the second TPC domain set are located after the TPC domains in the first TPC domain set, and vice versa, and the following descriptions are given in examples 1 and 2.

Example 1, the spreading sequence corresponds to the manner in which the number of TPC domains in the second TPC domain Set is related only to the number of uplink carriers (or simply carriers) indicated in cc-IndexInOneCC-Set.

This example assumes that: the uplink carrier sequence indicated in cc-IndexInOneCC-Set is uplink carrier 1, uplink carrier 2, uplink carrier 3, uplink carrier 4, and uplink carrier 5. The first TPC domain set is TPC 1,TPC2,TPC3,TPC4,TPC 5, corresponding to the first set cluster of uplink carrier 1 (SRS resource cluster is simply referred to as set cluster in some examples, hereinafter), the first set cluster of uplink carrier 2, the first set cluster of uplink carrier 3, the first set cluster of uplink carrier 4, and the first set cluster of uplink carrier 5.

After the expansion sequence corresponding mode is carried out, the second TPC domain set is TPC 1-1, TPC 2-1, TPC 3-1, TPC 4-1 and TPC 5-1, which correspond to the second set cluster of the uplink carrier 1, the second set cluster of the uplink carrier 2, the second set cluster of the uplink carrier 3, the second set cluster of the uplink carrier 4 and the second set cluster of the uplink carrier 5 respectively.

Specifically, the TPC sequence in a type a block is as follows, TPC 1,TPC 2,TPC 3,TPC 4,TPC 5,TPC 1-1, TPC 2-1, TPC 3-1, TPC 4-1, TPC 5-1, respectively corresponding to the first set cluster of uplink carrier 1, the first set cluster of uplink carrier 2, the first set cluster of uplink carrier 3, the first set cluster of uplink carrier 4, the first set cluster of uplink carrier 5, the second set cluster of uplink carrier 1, the second set cluster of uplink carrier 2, the second set cluster of uplink carrier 3, the second set cluster of uplink carrier 4, and the second set cluster of uplink carrier 5.

In other examples, assuming that 2 set clusters (i.e. only 1 set cluster) are not configured in the uplink carrier 2, the TPC number of the above-mentioned one type a block is unchanged, but the terminal may ignore the TPC 2-1 field and does not perform interpretation, so as to save the overhead.

Example 2, the spreading sequence corresponds to the manner in which the number in the second TPC domain Set is related to the number of uplink carriers and the number of Set clusters indicated in cc-IndexInOneCC-Set.

This example assumes that: the uplink carrier sequence indicated in cc-IndexInOneCC-Set is uplink carrier 1, uplink carrier 2, uplink carrier 3, uplink carrier 4, and uplink carrier 5. The first TPC field set is TPC 1,TPC2,TPC3,TPC4,TPC 5, corresponding to the first set cluster of uplink carrier 1, the first set cluster of uplink carrier 2, the first set cluster of uplink carrier 3, the first set cluster of uplink carrier 4, and the first set cluster of uplink carrier 5, respectively.

In this example, only 2 set clusters are allocated to uplink carriers 2 and 5 of the terminal, and only one set cluster is allocated to the remaining uplink carriers.

After the extension sequence corresponding mode is performed, the second TPC domain set only includes TPC2-1 and TPC 5-1, which correspond to the second set cluster of the uplink carrier 2 and the second set cluster of the uplink carrier 5, respectively.

Specifically, the TPC sequence in a type a block is as follows, TPC 1,TPC 2,TPC 3,TPC 4,TPC 5,TPC2-1, TPC 5-1, respectively corresponding to the first set cluster of uplink carrier 1, the first set cluster of uplink carrier 2, the first set cluster of uplink carrier 3, the first set cluster of uplink carrier 4, the first set cluster of uplink carrier 5, the second set cluster of uplink carrier 2, and the second set cluster of uplink carrier 5.

The corresponding modes of the staggered sequence mentioned in the foregoing include: and under the condition that the TPC domains in the first TPC domain set and the TPC domains in the second TPC domain set are in one-to-one correspondence with the uplink carrier indicated by the high-level parameter, arranging the plurality of TPC domains in the first TPC domain set and one or more TPC domains in the second TPC domain set according to an interleaving sequence.

Example 3, interleaving order corresponds to the manner in which the number of TPC field sets is additionally increased only with respect to the number of uplink carriers indicated in cc-IndexInOneCC-Set.

The corresponding assumption in this example can be referred to in example 1.

In this example, the TPC sequences in a type a block are as follows, TPC 1-1, TPC 2-1, TPC 3-1, TPC 4-1, TPC 5-1, respectively corresponding to the uplink carrier 1 first set cluster, the uplink carrier 1 second set cluster, the uplink carrier 2 first set cluster, the uplink carrier 2 second set cluster, the uplink carrier 3 first set cluster, the uplink carrier 3 second set cluster, the uplink carrier 4 first set cluster, the uplink carrier 4 second set cluster, the uplink carrier 5 first set cluster, and the uplink carrier 5 second set cluster.

In other examples, assuming that 2 set clusters (i.e., only 1 set cluster) are not allocated in the uplink carrier 2, the TPC number of the one type a block is not changed, but the terminal ignores the TPC 2-1 field and does not interpret it.

Example 4, the interleaving order corresponds to the manner in which the number in the second TPC domain Set is related to the number of uplink carriers and the number of Set clusters indicated in cc-IndexInOneCC-Set.

The corresponding assumption in this example can be referred to in example 2.

Specifically, the TPC sequence in a type a block is as follows, TPC 1, TPC 2-1,TPC 3,TPC 4,TPC 5,TPC 5-1, respectively corresponding to the first set cluster of uplink carrier 1, the first set cluster of uplink carrier 2, the second set cluster of uplink carrier 2, the first set cluster of uplink carrier 3, the first set cluster of uplink carrier 4, the first set cluster of uplink carrier 5, and the second set cluster of uplink carrier 5.

Or when the second TPC domain is located before the first TPC domain, specifically, the TPC sequence in a type a block is as follows, TPC 1, TPC 2-1,TPC 2,TPC 3,TPC 4,TPC 5-1, TPC 5, which correspond to the first set cluster of uplink carrier 1, the second set cluster of uplink carrier 2, the first set cluster of uplink carrier 3, the first set cluster of uplink carrier 4, the second set cluster of uplink carrier 5, and the first set cluster of uplink carrier 5, respectively.

In the foregoing embodiments of case one, optionally, the number of TPC domains in the second TPC domain set is related to at least one of:

1) A total number of the plurality of uplink carriers, which may be indicated by a higher layer parameter (e.g., cc-IndexInOneCC-Set);

2) And the number of SRS resource clusters in each uplink carrier.

In one example, the number of TPC domains within the second TPC domain set is related to the number of uplink carriers in 1) only, the method further comprising the steps of: if the first SRS resource cluster is configured in the target uplink carrier but the second SRS resource cluster is not configured, the terminal ignores the TPC domain corresponding to the target uplink carrier in the second TPC domain set and does not interpret the TPC domain. The target uplink carrier referred to herein may be any one or more of the uplink carriers indicated by the above-mentioned higher layer parameters.

Optionally, in case 1, the sequence of the second TPC domain set and the first TPC domain set may not be limited, or the sequence between TPC domains may not be limited, for example, DCI sent by the network side device does not limit the sequence. For example, the terminal is not expected to limit at least one of:

1) The sequence of the first TPC domain set and the second TPC domain set;

2) And sequencing the TPC domains in the first TPC domain set and the TPC domains in the second TPC domain set.

In the first case, optionally, the target TPC domain set supports a partial independent coding mode or a joint coding mode. For example, a certain TPC field occupies 4bits, the first 2bits being used to indicate a first set cluster, and the second 2bits being used to indicate a second set cluster; for another example, a TPC field occupies 4bits, and each code point includes two power control parameter indicators of set clusters in a joint coding manner.

Case two

In this case two, the indication method of TPC field is described for DCI of type (type) B, and the case two methods 3 and 4 are described.

Method 3: optionally, the DCI is type B, and one TPC field (including only one TPC field) in the target TPC field set corresponds to one uplink carrier indicated by a higher layer parameter, where the TPC field indicates a power control parameter corresponding to each of a plurality of SRS resource clusters in one uplink carrier. For example, in DCI, one TPC field in a block of one type B includes power control parameter modification commands corresponding to a plurality of set clusters.

In method 3, for the block of type B, the target TPC domain set includes one TPC domain, and for convenience of unification, this TPC domain is also referred to as a TPC domain set in this specification.

In one example, the overhead of the TPC field is a fixed value, and the TPC field indicates power control parameters corresponding to each of a plurality of (e.g., two) SRS resource clusters in the uplink carrier. For example, the TPC field overhead is fixed to 4 bits (bits), containing power control parameter modification commands for two SRS resource clusters. In this example, for the case where the SRS resource cluster is not configured, the terminal does not need to interpret the indication field (corresponding to the SRS resource cluster that is not configured) in order to save the overhead of the terminal.

In another example, the overhead of the TPC domain is related to the number of SRS resource clusters within the uplink carrier corresponding to the TPC domain. That is, the overhead of the TPC field is related to the number of SRS resource clusters configured in the uplink carrier indicated in cc-IndexInOneCC-Set. For example, if the number of SRS resource clusters in the carrier is 1, the overhead of the TPC domain is 2 bits; if the number of SRS resource clusters in the carrier is 2, the overhead of the TPC field is 4 bits.

Method 4: optionally, the DCI is type B, and the target TPC domain set includes a first TPC domain and a second TPC domain; or the target TPC domain set includes only the first TPC domain, the first TPC domain and the second TPC domain indicating power control parameters of one SRS resource cluster in one of the uplink carriers, for example, the first TPC domain indicates power control parameters of the first SRS resource cluster in the uplink carrier; the second TPC field indicates a power control parameter for a second SRS resource cluster within the uplink carrier.

Optionally, the number of TPC domains (or whether the second TPC domain exists) in the target TPC domain set is related to the number of SRS resource clusters in the uplink carrier. That is, the number of TPC fields in the target TPC field set is related to the number of set clusters configured in the uplink carrier corresponding to the block where the TPC field set is located, and the number of set clusters may be 1 or 2, and correspondingly, the number of TPC fields may be 1 or 2.

Optionally, the number of TPC domains (or whether the second TPC domain exists) in the target TPC domain set is independent of the number of SRS resource clusters in the uplink carrier, and the method further includes: and if the first SRS resource cluster is configured in the uplink carrier but the second SRS resource cluster is not configured in the uplink carrier, the terminal ignores the second TPC domain.

The following are examples 5 and 6.

In example 5, the number of TPC domains in the set of target TPC domains is independent of the set cluster number. For example, one type B block corresponds to the uplink carrier 1, and if the first TPC field is TPC1, TPC1 corresponds to the first set cluster of the uplink carrier 1; the second TPC domain is TPC1-1, and TPC1-1 corresponds to the second set cluster of the uplink carrier 1.

Specifically, the TPC sequence in a type a block is as follows, TPC 1-1, respectively corresponding to the first set cluster of uplink carrier 1, and the second set cluster of uplink carrier 1.

In other examples, if the terminal is not configured with the second set cluster in the uplink carrier corresponding to the block, the terminal does not interpret the TPC1-1 field.

Example 6 the number of TPC domains within the set of target TPC domains is related to the set cluster number. One type B block corresponds to the uplink carrier 1, and if the first TPC field is TPC1, TPC1 corresponds to the first set cluster of the uplink carrier 1. The second TPC domain is TPC1-1, and TPC1-1 corresponds to the second set cluster of the uplink carrier 1.

For example, when the terminal is configured with the second set cluster in the uplink carrier corresponding to the block, the TPC sequence in one type a block is as follows, TPC 1-1, respectively corresponding to the first set cluster of uplink carrier 1, the second set cluster of uplink carrier 1

For another example, when the terminal is not configured with the second set cluster in the uplink carrier corresponding to the block, the TPC sequence in one type a block is as follows, TPC1, and corresponds to the first set cluster of the uplink carrier 1.

In the second case, optionally, the target TPC domain set supports a partial independent coding mode or a joint coding mode. For example, a certain TPC field occupies 4bits, the first 2bits being used to indicate a first set cluster, and the second 2bits being used to indicate a second set cluster; for another example, a TPC field occupies 4bits, and each code point includes two power control parameter indicators of set clusters in a joint coding manner.

The foregoing embodiments describe the power control indication method of the SRS, and in the following, the partitioning method of the SRS resource cluster will be described in several embodiments. The method for partitioning SRS resource clusters described in the subsequent embodiments may be implemented in combination with any of the previous embodiments, or may be implemented separately.

Example 1

In one example, the plurality of SRS resource clusters mentioned in embodiment 100 are distinguished according to the configuration order of SRS resource sets or the order of identification IDs; wherein, the configuration sequence comprises front-to-back or back-to-front according to the configuration time; the order of the IDs includes from small to large or from large to small.

Optionally, in the plurality of SRS resource clusters, the number of SRS resource sets included in any two SRS resource clusters is equal.

For example, in the case of two SRS resource clusters (simply referred to as set clusters), the number of SRS resource sets allocated in the second set cluster is satisfied to be identical to the number of SRS resource sets allocated in the first set cluster, that is, the number is equal. For example, in the total SRS resource sets (abbreviated as sets) configured, the first half set is a first set cluster, the second half set is a second set cluster, and vice versa, wherein the first half set and the second half set are determined according to the number of configured sets.

For the purpose of illustrating the first embodiment in detail, description will be made below in connection with several specific examples.

Example 1, the first set cluster and the second set cluster are determined from front to back according to the configuration order of SRS resource sets, and the number of SRS resource sets.

For example, the network configures 6 sets in total, respectively sets 2,set 3,set1,set4,set 5,set 6 in the order of configuration in the SRS-config domain, where set 2 indicates that the ID of the set is 2, and so on.

Then: first set cluster: set 2, set 3, set1;

second set cluster: set4, set 5, set 6.

Example 2, the first set cluster and the second set cluster are determined according to the order SRS resource set ID from small to large and according to the set number.

After division according to the sequence SRS resource set ID, then:

First set cluster: set 1, set 2, set3;

second set cluster: set4, set 5, set6.

Optionally, the first embodiment may further indicate the number of the first set cluster and/or the second set cluster through a first signaling, where the first signaling includes at least one of DCI, a media access Control Element (MEDIA ACCESS Control Element, MAC CE), and radio resource Control (Radio Resource Control, RRC). That is, the first embodiment further includes the steps of: the terminal receives a first indication signaling, where the first indication signaling is used to indicate the number of SRS resource sets included in the SRS resource cluster.

For example, the first indication signaling indicates that the front part set of the terminal configuration is a first set cluster and the rear part set is a second set cluster, and vice versa, the front part set and the rear part set being determined according to the indicated set number.

For the purpose of this detailed description, several specific examples will be described below.

Example 3, the first set cluster and the second set cluster are determined according to the configuration order and according to the set number indicated by the first signaling.

If the first signaling indicates that the first set cluster number is 2, the second set cluster number defaults to 4.

Then: first set cluster: set 2, set 3;

Second set cluster: set1, set4, set 5, set 6.

If the first signaling indicates that the first set cluster number is 2 and indicates that the second set cluster number is 3.

The first set cluster: set 2, set 3;

second set cluster: set1, set4, set 5.

Optionally, in the first embodiment, the start position+number, or the start id+number of the first set cluster and/or the second set cluster may be further indicated through a second signaling, where the second signaling includes at least one of DCI, MAC CE, RRC. For example, the first embodiment further includes the steps of: the terminal receives a second indication signaling, wherein the second indication signaling is used for indicating at least one of the following target SRS resource clusters in the SRS resource clusters:

1) The initial position of the included SRS resource set, such as the first SRS resource set included in the target SRS resource set cluster;

2) The ID of the initial SRS resource set is included, such as the ID of the first SRS resource set included in the target SRS resource set;

3) The number of SRS resource sets included, such as the number of total SRS resource sets included in the target SRS resource cluster.

The target SRS resource cluster referred to in this example may be all SRS resource clusters of the plurality of SRS resource clusters, or may be one or more SRS resource clusters thereof.

For example, the second indication signaling indicates that the front part set of the terminal configuration is a first set cluster and the rear part set is a second set cluster, and vice versa, the front part set and the rear part set being determined according to the specific location indicating that the first set cluster and/or the second set cluster are indicated.

Alternatively, the first embodiment may also distinguish SRS resource clusters by using the SRS resource set location of a specific use (use). The SRS resource clusters are distinguished according to the SRS resource sets of specific purposes.

For example, the set of SRS resources for the specific use is located adjacent to two SRS resource clusters.

For another example, the location of the xth set of special purpose SRS resources is used to determine the xth SRS resource cluster and the (x+1) th SRS resource cluster, where X is an integer greater than or equal to 1.

The location of the particular use SRS resource set, e.g., at the Y-th SRS resource set, is used to determine the (Y-1) th SRS resource cluster and the Y-th SRS resource cluster, Y being an integer greater than or equal to 2.

Optionally, the set of SRS resources for the specific purpose satisfies at least one of:

1) If the number of the SRS resource sets for the specific purpose is less than 2, the terminal considers that there is only one SRS resource cluster.

2) The set of SRS resources for the specific use is predefined, for example, the specific use may be any of the protocol conventions.

3) The SRS resource set with the specific application is determined according to the transmission mode of the Physical Uplink Shared Channel (PUSCH). For example, when the transmission mode of the PUSCH configuration is codebook (codebook), the SRS resource set for specific use is codebook, and when the transmission mode of the PUSCH configuration is non-codebook (nonCodebook), the SRS resource set for specific use is nonCodebook.

Example 4, in this example, the partitioning of the set cluster is based on: the arrangement order of the SRS resource sets+the SRS resource sets that need to be full of a specific usage are arranged in the adjacent positions of the two set clusters in the set cluster order. This example assumes that a codebook transmission is configured in PUSCH, and that the specific user is codebook.

The example assumes that the network configures 7 sets in total, sets 2,set 3,set1,set4,set 5,set 6,set 7 each, corresponding usages are antenna switch (ANTENNA SWITCHING), beam management (beam management), codebook, codebook, noncodebook, beam management, ANTENNA SWITCHING each, in the order of configuration in SRS-config domain, where set 2 indicates that the ID of the set is 2, and so on.

For example, according to the positive set cluster order, the set of the first codebook corresponds to the first set cluster and the set of the second codebook corresponds to the second set cluster.

Then: first set cluster: set 2, set 3, set 1;

second set cluster: set 4,set 5,set 6,set 7.

For another example, according to the reverse order set cluster order, the set of the first codebook corresponds to the second set cluster and the set of the second codebook corresponds to the first set cluster.

Then: first set cluster: set 4,set 5,set 6,set 7;

second set cluster: set 2, set 3, set 1.

In example 5, the set cluster is divided according to the following: the configuration sequence of the SRS resource set+the position of the X-th SRS resource set for the specific purpose is used for determining the X-th SRS resource cluster and the (X+1) -th SRS resource cluster. This example assumes that a codebook transmission is configured in PUSCH, and that the specific user is codebook.

The example assumes that the network configures 7 sets in total, and that the corresponding usages for sets 2,set 3,set1,set4,set 5,set 6,set 7 are ANTENNA SWITCHING, respectively, and that the corresponding usages for sets are beam management, codebook, noncodebook, beam management, codebook, ANTENNA SWITCHING, in which set 2 indicates that the ID of the set is 2, and so on, in the order of configuration in the SRS-configuration field.

For example, according to the positive set cluster order, the first codebook and its preceding set correspond to the first set cluster, and the set after the first codebook corresponds to the second set cluster, i.e., x=1.

Then: first set cluster: set 2, set 3, set 1;

second set cluster: set 4,set 5,set 6,set 7.

Example 6, the partitioning of the set cluster is based on: the configuration order of the SRS resource set+the position of the Y-th SRS resource set of the specific purpose is used for determining the (Y-1) -th SRS resource cluster and the Y-th SRS resource cluster. This example assumes that a codebook transmission is configured in PUSCH, and that the specific user is codebook.

The example assumes that the network configures 7 sets in total, and that, in order of configuration in the SRS-config domain, the corresponding usages for sets 2,set 3,set1,set4,set 5,set 6,set 7 are ANTENNA SWITCHING, codebook, beam management, codebook, noncodebook, beammanagement, ANTENNA SWITCHING, respectively, where set 2 indicates that the ID of the set is 2, and so on.

For example, according to the positive set cluster order, the set before the second codebook corresponds to the first set cluster, the second codebook and the set after it corresponds to the second set cluster, in this example y=2.

Namely: first set cluster: set 2, set 3, set 1;

second set cluster: set 4,set 5,set 6,set 7.

Example two

In one example, the plurality of SRS resource clusters mentioned in embodiment 100 are distinguished in the order of configuration of SRS resources or the order of identification IDs; wherein the configuration sequence includes front-to-back or back-to-front; the order of the IDs includes from small to large or from large to small.

Optionally, in the plurality of SRS resource clusters, the number of SRS resources included in any two SRS resource clusters is equal. For example, in the case of two SRS resource clusters (simply referred to as set clusters), the number of SRS resources configured in the second set cluster is satisfied to be identical to the number of SRS resources configured in the first set cluster, that is, the number is equal. For example, of all SRS resources configured, the set associated with the first half of resources belongs to the first set cluster, the set associated with the second half of resources belongs to the second set cluster, and vice versa, the first half of resources and the second half of resources being determined by the number of resources configured.

Alternatively, the second embodiment may further indicate the number of resources associated with all sets in the first set cluster and/or the number of resources associated with all sets in the second set cluster through a third signaling, where the third signaling includes at least one of DCI, MAC CE, RRC. That is, the second embodiment further includes the following steps: and the terminal receives a third indication signaling, wherein the third indication signaling is used for indicating the quantity of SRS resources included in the SRS resource cluster.

For example, the third indication signaling is used to indicate that, of all SRS resources configured, the set associated with the first half of resources belongs to the first set cluster, the set associated with the second half of resources belongs to the second set cluster, and vice versa, where the first half of resources and the second half of resources are determined according to the number of resources configured.

Optionally, in the second embodiment, the start position+number, or the start id+number of the first set cluster and/or the second set cluster may be further indicated by a fourth signaling, where the fourth signaling includes at least one of DCI, MAC CE, RRC. For example, the second embodiment further includes the following steps: the terminal receives fourth indication signaling, wherein the fourth indication signaling is used for indicating at least one of the following target SRS resource clusters in the SRS resource clusters:

1) The initial position of the SRS resources is included, such as the first SRS resource included in the target SRS resource cluster;

2) The ID of the initial SRS resource is included, such as the ID of the first SRS resource included in the target SRS resource cluster;

3) The number of SRS resources included, such as the number of total SRS resources included in the target SRS resource cluster.

For example, the fourth indication signaling indicates that the set associated with the front part of resource belongs to the first set cluster and the set associated with the rear part of resource belongs to the second set cluster, and vice versa, the front part of resource and the rear part of resource being determined according to the specific location indicated by the associated resource within the first set cluster and or the associated resource within the second set cluster.

Optionally, in the second embodiment, the same SRS resource should not be associated with two SRS resources of two SRS resource clusters respectively, that is, the terminal does not expect that the same SRS resource is associated with more than one SRS resource cluster.

Example III

In one example, embodiment 100 further includes the steps of: receiving configuration information, wherein the configuration information is used for configuring at least one of the following:

1) Sequence of SRS resource cluster;

2) Sequences of SRS resources within a SRS resource cluster.

The embodiment assumes that the plurality of set clusters are a first set cluster and a second set cluster, the first set cluster sequence and/or the associated resource sequence within the first set cluster may be configured according to the prior art, and the embodiment may additionally configure the second set cluster sequence and/or the associated resource sequence within the second set cluster.

For example, configuration parameters srs-ResourceSetToAddModList correspond to the first set cluster; configuration parameters srs-ResourceSetToAddModList-v17 corresponding to the second set cluster

For another example, the second set cluster sequence and or the associated resource sequence within the second set cluster are additionally configured. Configuring parameters srs-ResourceSetToAddModList corresponding to the first set cluster; configuring parameters srs-ResourceSetToAddModList-v17 corresponding to a second set cluster; configuration parameters srs-ResourceToAddModList indicate that resource in the sequence is used to associate a set within the first set cluster; configuration parameters srs-ResourceToAddModList-v17 indicate that resource in the sequence is used to associate sets within the second set cluster.

Example IV

The SRS resource set in the SRS resource cluster in embodiment 100 is determined according to a parameter associated with the SRS resource set; and/or; the set of special purpose SRS resources within the SRS resource cluster is determined according to parameters associated with the set of special purpose SRS resources.

Optionally, any two SRS resource sets within one of the SRS resource clusters satisfy at least one of: the method has the advantages of having the same path loss reference RS, having the same spatial beam information, having the same association RS, associating the same transmission and reception point TRP index, associating the same control resource set resource pool index, having the same power control parameter index and having the same closed loop power control index group.

Optionally, SRS resource sets within different SRS resource clusters satisfy at least one of: different path loss reference RSs, different spatial beam configurations, different associated RSs, different SRS resource IDs, different TRP indexes, different control resource set resource pool indexes (CORESET pool index), different power control parameter indexes and different closed-loop power control index groups are provided.

The embodiment may divide the SRS resource clusters according to the parameters associated with the SRS resource sets, and the condition may be either alone or in combination with the methods provided in the above embodiments one to three, to limit all the sets in the set clusters or limit the sets having a specific usages in the set clusters.

Alternatively, the above-mentioned power control parameter index may be configured at each SRS set, for example, a default index is used when the power control parameter index is an optional configuration parameter and no configuration is required.

This embodiment may derive the SRS power through the following equation:

The meaning of each parameter in the formula can be referred to the description in the related art.

Wherein, when the SRS power follows the power adjustment of the PUSCH, the above formula satisfies the following relationship:

h_b,f,c(i,l,t)＝f_b,f,c(i,l)

i.e. the power control parameter index is not active.

Wherein, when SRS power does not follow power adjustment of PUSCH:

T in the above formulas represents a power control parameter index or an SRS resource cluster index.

Based on the power control indication method of the SRS and the method for dividing the resource clusters of the SRS described in the foregoing embodiments, the embodiment of the present application further provides a method for dividing the resource clusters of the SRS, as shown in fig. 3, where the method includes the following steps:

S302: the terminal determines at least two SRS resource clusters, wherein the SRS resource clusters comprise SRS resource sets and/or SRS resources, and the at least two SRS resource clusters are divided according to one of the following modes: the configuration sequence of SRS resource sets or the sequence of identification IDs; the configuration sequence of SRS resources or the sequence of identification IDs; sequence of SRS resource cluster; sequence of SRS resources; parameters associated with the SRS resource set.

Reference may be made to the description of the first to fourth embodiments of the present application, and the description is not repeated here for the sake of avoiding repetition.

The method for dividing the SRS resource clusters provided by the embodiment of the application can determine at least two SRS resource clusters in a plurality of modes, wherein one SRS resource cluster can correspond to one TRP. In a multi-TRP scene, independent power control of SRS is conveniently realized through DCI, and the transmission efficiency of SRS is improved.

The power control indication method of the SRS and the method for dividing the resource clusters according to the embodiment of the present application are described in detail above with reference to fig. 2 and 3. A power control indication method of SRS and a method of partitioning resource clusters according to another embodiment of the present application will be described in detail with reference to fig. 4 and 5. It will be appreciated that the interaction of the network side device with the terminal described from the network side device is the same as the description of the terminal side in the method shown in fig. 2 and 3, and the related description is omitted as appropriate to avoid repetition.

Fig. 4 is a schematic flow chart of implementation of the method for indicating power control of SRS in the embodiment of the present application, which may be applied to a network side device. As shown in fig. 4, the method 400 includes:

S402: the network side equipment sends DCI, wherein the DCI comprises a target Transmission Power Control (TPC) domain set, and the target TPC domain set is used for indicating power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier;

S404: and receiving SRS, wherein the SRS is sent by the terminal according to the power control parameters.

In the embodiment of the present application, DCI sent by a network side device includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to each of a plurality of SRS resource clusters in at least one uplink carrier. The embodiment of the application is convenient for realizing the independent power control of the SRS under each TRP, can solve the problem that the power control of the SRS with independent TRP can not be realized under a multi-TRP scene, and improves the transmission efficiency of the SRS.

Fig. 5 is a schematic flow chart of implementation of a method for partitioning a resource cluster of SRS according to an embodiment of the present application, which may be applied to a network side device. As shown in fig. 5, the method 500 includes:

S502: the network side equipment determines at least two SRS resource clusters, wherein the SRS resource clusters comprise SRS resource sets and/or SRS resources, and the at least two SRS resource clusters are divided according to one of the following modes:

The configuration sequence of SRS resource sets or the sequence of identification IDs;

The configuration sequence of SRS resources or the sequence of identification IDs;

Sequence of SRS resource cluster;

Sequence of SRS resources;

Parameters associated with the SRS resource set.

Fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application, and as shown in fig. 6, a terminal 600 includes:

the receiving module 602 may be configured to receive DCI, where the DCI includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier.

And a sending module 604, configured to send an SRS according to the power control parameter.

In the embodiment of the present application, DCI received by a terminal includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier. The embodiment of the application is convenient for realizing the independent power control of the SRS under each TRP, can solve the problem that the power control of the SRS with independent TRP can not be realized under a multi-TRP scene, and improves the transmission efficiency of the SRS.

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

The TPC domains in the target TPC domain set are in one-to-one correspondence with the uplink carriers indicated by the high-level parameters, and one TPC domain indicates the power control parameters corresponding to a plurality of SRS resource clusters in one uplink carrier.

Optionally, as an embodiment, the overhead of the TPC field is a fixed value.

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

The overhead of the TPC domain is related to the number of SRS resource clusters in the uplink carrier corresponding to the TPC domain.

Optionally, as an embodiment, the DCI is type a, the target TPC domain set includes a first TPC domain set and a second TPC domain set,

Any one TPC domain in the first TPC domain set and the second TPC domain set indicates a power control parameter of one SRS resource cluster in one uplink carrier.

Optionally, as an embodiment, the TPC fields in the first TPC field set and the TPC fields in the second TPC field set are both in one-to-one correspondence with the uplink carrier.

Optionally, as an embodiment, the order of the plurality of TPC domains in the first TPC domain set and the one or more TPC domains in the second TPC domain set satisfies one of the following:

An expansion sequence corresponding mode;

The staggered sequence corresponds to the mode.

Optionally, as an embodiment, the extension order correspondence manner includes: the TPC domains in the second TPC domain set are located either after or before the TPC domains in the first TPC domain set.

Optionally, as an embodiment, the number of TPC domains in the second TPC domain set is related to at least one of:

The number of the plurality of uplink carriers;

the number of SRS resource clusters within each of the uplink carriers.

Optionally, as an embodiment, the number of TPC domains in the second TPC domain set is related to the number of uplink carriers only, and the receiving module 602 may be configured to: and if the first SRS resource cluster is configured in the target uplink carrier but the second SRS resource cluster is not configured, ignoring the TPC domain corresponding to the target uplink carrier in the second TPC domain set.

Optionally, as an embodiment, the terminal is not intended to limit at least one of:

the sequence of the first TPC domain set and the second TPC domain set;

and sequencing the TPC domains in the first TPC domain set and the TPC domains in the second TPC domain set.

Optionally, as an embodiment, the DCI is type B, the target TPC domain set includes a first TPC domain and a second TPC domain or includes only the first TPC domain,

The first TPC field and the second TPC field indicate power control parameters of one SRS resource cluster in one of the uplink carriers.

Optionally, as an embodiment, the number of TPC domains in the target TPC domain set is related to the number of SRS resource clusters in the uplink carrier.

Optionally, as an embodiment, the receiving module 602 may be configured to: and if the first SRS resource cluster is configured in the uplink carrier but the second SRS resource cluster is not configured, ignoring the second TPC domain.

Optionally, as an embodiment, the target TPC domain set supports a partial independent coding scheme or a joint coding scheme.

Optionally, as an embodiment, the plurality of SRS resource clusters are distinguished according to a configuration order of the SRS resource sets or an order of identification IDs;

wherein, the configuration sequence comprises front-to-back or back-to-front according to the configuration time;

the order of the IDs includes from small to large or from large to small.

Optionally, as an embodiment, in the plurality of SRS resource clusters, the number of SRS resource sets included in any two SRS resource clusters is equal.

Alternatively, as an embodiment, the receiving module 602 may be configured to: a first indication signaling is received, the first indication signaling being used to indicate a number of SRS resource sets included in the SRS resource cluster.

Alternatively, as an embodiment, the receiving module 602 may be configured to: receiving a second indication signaling, where the second indication signaling is used to indicate at least one of the following target SRS resource clusters in the SRS resource clusters:

A starting position of the included SRS resource set;

an ID of the initial SRS resource set included;

Number of SRS resource sets included.

Optionally, as an embodiment, the plurality of SRS resource clusters are differentiated according to SRS resource sets of specific use.

Optionally, as an embodiment, the SRS resource set for specific use is located at a position adjacent to two SRS resource clusters; or (b)

The position of the xth SRS resource set for the specific purpose is used for determining the xth SRS resource cluster and the (X+1) th SRS resource cluster, and X is an integer greater than or equal to 1; or (b)

The Y-th SRS resource set location is used to determine the (Y-1) -th SRS resource set and the Y-th SRS resource set, Y being an integer greater than or equal to 2.

Optionally, as an embodiment, the specific SRS resource set satisfies at least one of:

If the number of the SRS resource sets for the specific purpose is less than 2, the terminal considers that only one SRS resource set exists;

the set of special purpose SRS resources is predefined;

the SRS resource set with the specific application is determined according to the transmission mode of the Physical Uplink Shared Channel (PUSCH).

Optionally, as an embodiment, the plurality of SRS resource clusters are distinguished according to an order of configuration of SRS resources or an order of identification IDs;

Wherein the configuration sequence includes front-to-back or back-to-front;

the order of the IDs includes from small to large or from large to small.

Optionally, as an embodiment, in the plurality of SRS resource clusters, the number of SRS resources included in any two SRS resource clusters is equal.

Alternatively, as an embodiment, the receiving module 602 may be configured to: and receiving third indication signaling, wherein the third indication signaling is used for indicating the quantity of SRS resources included in the SRS resource cluster.

Alternatively, as an embodiment, the receiving module 602 may be configured to: receiving fourth indication signaling, where the fourth indication signaling is used to indicate at least one of the following target SRS resource clusters in the SRS resource clusters:

a starting position of the included SRS resource;

an ID of the initial SRS resource included;

Number of SRS resources included.

Optionally, as an embodiment, the terminal does not expect the same SRS resource to be associated with more than one SRS resource cluster.

Alternatively, as an embodiment, the receiving module 602 may be configured to: receiving configuration information, wherein the configuration information is used for configuring at least one of the following:

a sequence of the SRS resource cluster;

sequences of SRS resources within the SRS resource cluster.

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

The SRS resource set in the SRS resource cluster is determined according to parameters associated with the SRS resource set; and/or

The set of special purpose SRS resources within the SRS resource cluster is determined according to parameters associated with the set of special purpose SRS resources.

Optionally, as an embodiment, any two SRS resource sets within one of the SRS resource clusters satisfy at least one of:

The method has the advantages of having the same path loss reference RS, having the same spatial beam information, having the same association RS, associating the same transmission and reception point TRP index, associating the same control resource set resource pool index, having the same power control parameter index and having the same closed loop power control index group.

Optionally, as an embodiment, the SRS resource sets within different SRS resource clusters satisfy at least one of:

Different path loss reference RSs, different spatial beam configurations, different association RSs, different SRS resource IDs, different TRP indexes, different control resource set resource pool indexes, different power control parameter indexes and different closed-loop power control index groups are provided.

The terminal 600 according to the embodiment of the present application may refer to the flow of the method 200 corresponding to the embodiment of the present application, and each unit/module in the terminal 600 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 200, and can achieve the same or equivalent technical effects, which are not repeated herein for brevity.

Fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application, and as shown in fig. 7, a terminal 700 includes:

a determining module 702, configured to determine at least two SRS resource clusters; wherein the SRS resource clusters include SRS resource sets and/or SRS resources, and the at least two SRS resource clusters are divided according to one of the following manners:

a sequence of the SRS resource cluster;

A sequence of the SRS resource;

parameters associated with the SRS resource set.

In the embodiment of the present application, at least two SRS resource clusters may be determined in a plurality of manners, where one SRS resource cluster may correspond to one TRP. In a multi-TRP scene, independent power control of SRS is conveniently realized through DCI, and the transmission efficiency of SRS is improved.

The terminal 700 according to the embodiment of the present application may refer to the flow of the method 300 corresponding to the embodiment of the present application, and each unit/module in the terminal 700 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 300, and can achieve the same or equivalent technical effects, which are not described herein for brevity.

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

The terminal in the embodiment of the application can be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not limited specifically.

The terminal provided by the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 2 to 3, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Fig. 8 is a schematic structural diagram of a network side device according to an embodiment of the present application, as shown in fig. 8, a network side device 800 includes:

A transmitting module 802, configured to transmit DCI, where the DCI includes a target TPC domain set, where the target TPC domain set is configured to indicate power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier;

and a receiving module 804, configured to receive an SRS, where the SRS is sent by the terminal according to the power control parameter.

In the embodiment of the present application, DCI sent by a network side device includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to each of a plurality of SRS resource clusters in at least one uplink carrier. The embodiment of the application can solve the problem that the power control of SRS with independent TRP can not be realized under the multi-TRP scene, is convenient for realizing the independent power control of SRS under each TRP and improves the transmission efficiency of SRS.

The network side device 800 according to the embodiment of the present application may refer to the flow of the method 400 corresponding to the embodiment of the present application, and each unit/module in the network side device 800 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 400, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

Fig. 9 is a schematic structural diagram of a network side device according to an embodiment of the present application, as shown in fig. 9, a network side device 900 includes:

a determining module 902, operable to determine at least two SRS resource clusters; wherein the SRS resource clusters include SRS resource sets and/or SRS resources, and the at least two SRS resource clusters are divided according to one of the following manners:

a sequence of the SRS resource cluster;

A sequence of the SRS resource;

parameters associated with the SRS resource set.

The network side device 900 according to the embodiment of the present application may refer to the flow of the method 500 corresponding to the embodiment of the present application, and each unit/module in the network side device 900 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 500, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

Optionally, as shown in fig. 10, an embodiment of the present application further provides a communication device 1000, including a processor 1001, a memory 1002, and a program or an instruction stored in the memory 1002 and capable of being executed on the processor 1001, where, for example, when the communication device 1000 is a terminal, the program or the instruction is executed by the processor 1001 to implement the above-mentioned power control instruction method of the SRS and the respective processes of the resource cluster partition method embodiment, and the same technical effects can be achieved. When the communication device 1000 is a network side device, the program or the instruction is executed by the processor 1001 to implement each process of the above embodiment of the power control indication method of SRS and the partition method of resource clusters, and achieve the same technical effect, so that repetition is avoided and no further description is given here.

Fig. 11 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1100 includes, but is not limited to: radio frequency unit 1101, network module 1102, audio output unit 1103, input unit 1104, sensor 1105, display unit 1106, user input unit 1107, interface unit 1108, memory 1109, and processor 1110.

Those skilled in the art will appreciate that the terminal 1100 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 1110 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 11 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1104 may include a graphics processor (Graphics Processing Unit, GPU) 11041 and a microphone 11042, the graphics processor 11041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1107 includes a touch panel 11071 and other input devices 11072. The touch panel 11071 is also referred to as a touch screen. The touch panel 11071 may include two parts, a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from a network side device, the radio frequency unit 1101 processes the downlink data with the processor 1110; in addition, the uplink data is sent to the network side equipment. Typically, the radio frequency unit 1101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1109 may be used to store software programs or instructions and various data. The memory 1109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 1109 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

Processor 1110 may include one or more processing units; alternatively, processor 1110 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1110.

The radio frequency unit 1101 is configured to receive downlink control information DCI, where the DCI includes a target TPC domain set, where the target TPC domain set is configured to indicate power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier; and the radio frequency unit 1101 is configured to send an SRS according to the power control parameter.

A processor 1110 for determining at least two SRS resource clusters; wherein the SRS resource clusters include SRS resource sets and/or SRS resources, and the at least two SRS resource clusters are divided according to one of the following manners:

a sequence of the SRS resource cluster;

A sequence of the SRS resource;

parameters associated with the SRS resource set.

In addition, in the embodiment of the present application, at least two SRS resource clusters may be determined in a plurality of manners, where one SRS resource cluster may correspond to one TRP. In a multi-TRP scene, independent power control of SRS is conveniently realized through DCI, and the transmission efficiency of SRS is improved.

The terminal 1100 provided by the embodiment of the present application may further implement the above-mentioned power control indication method of SRS and the respective processes of the method embodiment of dividing the resource clusters, and may achieve the same technical effects, so that repetition is avoided and no further description is given here.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 12, the network side device 1200 includes: an antenna 121, a radio frequency device 122, a baseband device 123. The antenna 121 is connected to a radio frequency device 122. In the uplink direction, the radio frequency device 122 receives information via the antenna 121, and transmits the received information to the baseband device 123 for processing. In the downlink direction, the baseband device 123 processes information to be transmitted, and transmits the processed information to the radio frequency device 122, and the radio frequency device 122 processes the received information and transmits the processed information through the antenna 121.

The above-described band processing apparatus may be located in the baseband apparatus 123, and the method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 123, where the baseband apparatus 123 includes the processor 124 and the memory 125.

The baseband apparatus 123 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 12, where one chip, for example, a processor 124, is connected to the memory 125, so as to call a program in the memory 125 to perform the network side device operation shown in the above method embodiment.

The baseband apparatus 123 may further include a network interface 126 for interacting with the radio frequency apparatus 122, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the network side device of the embodiment of the present invention further includes: instructions or programs stored in the memory 125 and executable on the processor 124, the processor 124 invokes the instructions or programs in the memory 125 to perform the methods performed by the modules shown in fig. 8 or fig. 9, and achieve the same technical effects, and are not repeated here.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements the above-mentioned all processes of the SRS power control indication method and the resource cluster division method embodiment, and can achieve the same technical effect, so that repetition is avoided, and no further description is given here.

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

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or an instruction, the power control indication method of the SRS and the processes of the resource cluster division method embodiment are realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.

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

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

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

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

Claims

1. A power control indication method for a sounding reference signal SRS, the method comprising:

The terminal receives Downlink Control Information (DCI), wherein the DCI comprises a target Transmission Power Control (TPC) domain set, the target TPC domain set is used for indicating power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier, the SRS resource clusters are distinguished according to the configuration sequence of the SRS resource clusters or the sequence of identification IDs, or the SRS resource clusters are distinguished according to the configuration sequence of the SRS resources or the sequence of the identification IDs;

And sending SRS according to the power control parameters.

2. The method of claim 1, wherein TPC domains in the set of target TPC domains are in one-to-one correspondence with the uplink carrier, one TPC domain indicating a power control parameter for each of a plurality of SRS resource clusters in one of the uplink carriers.

3. The method of claim 2, wherein the step of determining the position of the substrate comprises,

The overhead of the TPC field is a fixed value.

4. The method of claim 2, wherein the step of determining the position of the substrate comprises,

5. The method of claim 1, wherein the DCI is type A, the target TPC domain set includes a first TPC domain set and a second TPC domain set,

6. The method of claim 5, wherein the step of determining the position of the probe is performed,

And TPC domains in the first TPC domain set and TPC domains in the second TPC domain set are in one-to-one correspondence with the uplink carrier.

7. The method of claim 5, wherein the step of determining the position of the probe is performed,

The order of the plurality of TPC domains in the first TPC domain set and the one or more TPC domains in the second TPC domain set satisfies one of:

An expansion sequence corresponding mode;

The staggered sequence corresponds to the mode.

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

The expansion sequence corresponding mode comprises the following steps: the TPC domains in the second TPC domain set are located either after or before the TPC domains in the first TPC domain set.

9. The method of claim 5 or 7, wherein the number of TPC domains within the second set of TPC domains is related to at least one of:

The number of the plurality of uplink carriers;

the number of SRS resource clusters within each of the uplink carriers.

10. The method of claim 9, wherein the number of TPC domains within the second set of TPC domains is related only to the number of uplink carriers, the method further comprising:

and if the first SRS resource cluster is configured in the target uplink carrier but the second SRS resource cluster is not configured in the target uplink carrier, the terminal ignores the TPC domain corresponding to the target uplink carrier in the second TPC domain set.

11. The method of claim 1, wherein the DCI is type B, the set of target TPC fields includes a first TPC field and a second TPC field or only the first TPC field,

12. The method of claim 11, wherein the step of determining the position of the probe is performed,

The number of TPC domains in the target TPC domain set is related to the number of SRS resource clusters in the uplink carrier.

13. The method of claim 11, wherein the number of TPC domains within the set of target TPC domains is independent of the number of SRS resource clusters within the uplink carrier, the method further comprising:

And if the first SRS resource cluster is configured in the uplink carrier but the second SRS resource cluster is not configured in the uplink carrier, the terminal ignores the second TPC domain.

14. The method according to claim 5 or 11, wherein the set of target TPC fields supports either a partially independent coding scheme or a joint coding scheme.

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

The configuration sequence comprises front-to-back or back-to-front according to configuration time;

the order of the IDs includes from small to large or from large to small.

16. The method of claim 15, wherein any two of the SRS resource clusters comprise an equal number of SRS resource sets among the plurality of SRS resource clusters.

17. The method of claim 15, wherein the method further comprises: a first indication signaling is received, the first indication signaling being used to indicate a number of SRS resource sets included in the SRS resource cluster.

18. The method of claim 15, wherein the method further comprises: receiving a second indication signaling, where the second indication signaling is used to indicate at least one of the following target SRS resource clusters in the SRS resource clusters:

A starting position of the included SRS resource set;

an ID of the initial SRS resource set included;

Number of SRS resource sets included.

19. The method of claim 15, wherein a plurality of the SRS resource clusters are differentiated by SRS resource sets of a particular use.

20. The method of claim 19, wherein the step of determining the position of the probe comprises,

The SRS resource set with the specific application is positioned at the adjacent position of the two SRS resource clusters; or (b)

21. The method of claim 20, wherein the set of SRS resources for a particular use satisfies at least one of:

the set of special purpose SRS resources is predefined;

22. The method of claim 1, wherein any two of the SRS resource clusters comprise an equal number of SRS resources among the plurality of SRS resource clusters.

23. The method according to claim 1, wherein the method further comprises: and receiving third indication signaling, wherein the third indication signaling is used for indicating the quantity of SRS resources included in the SRS resource cluster.

24. The method according to claim 1, wherein the method further comprises: receiving fourth indication signaling, where the fourth indication signaling is used to indicate at least one of the following target SRS resource clusters in the SRS resource clusters:

a starting position of the included SRS resource;

an ID of the initial SRS resource included;

Number of SRS resources included.

25. The method according to any one of claims 1 to 8, 10 to 13, further comprising: receiving configuration information, wherein the configuration information is used for configuring at least one of the following:

a sequence of the SRS resource cluster;

sequences of SRS resources within the SRS resource cluster.

26. The method according to any one of claims 1 to 8, 10 to 13,

27. The method of claim 26, wherein any two SRS resource sets within one of the SRS resource clusters satisfy at least one of:

28. The method of claim 26, wherein SRS resource sets within different SRS resource clusters satisfy at least one of:

29. A method for indicating power control of an SRS, the method comprising:

The network side equipment sends DCI, wherein the DCI comprises a target Transmission Power Control (TPC) domain set, the target TPC domain set is used for indicating power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier, the SRS resource clusters are distinguished according to the configuration sequence of the SRS resource clusters or the sequence of identification IDs, or the SRS resource clusters are distinguished according to the configuration sequence of the SRS resources or the sequence of the identification IDs;

and receiving SRS, wherein the SRS is sent by the terminal according to the power control parameters.

30. A terminal, comprising:

A receiving module, configured to receive DCI, where the DCI includes a target TPC domain set, where the target TPC domain set is configured to indicate power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier, where the plurality of SRS resource clusters are distinguished according to a configuration order of the SRS resource clusters or an order of identification IDs, or where the plurality of SRS resource clusters are distinguished according to a configuration order of SRS resources or an order of identification IDs;

and the sending module is used for sending SRS according to the power control parameters.

31. A network side device, comprising:

A sending module, configured to send DCI, where the DCI includes a target TPC domain set, where the target TPC domain set is configured to indicate power control parameters corresponding to a plurality of SRS resource clusters in at least one uplink carrier, where the plurality of SRS resource clusters are distinguished according to a configuration order of the SRS resource clusters or an order of identification IDs, or where the plurality of SRS resource clusters are distinguished according to a configuration order of SRS resources or an order of identification IDs;

And the receiving module is used for receiving SRS, and the SRS is sent by the terminal according to the power control parameters.

32. A terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the method of any one of claims 1 to 28.

33. A network side device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements the method of claim 29.

34. A readable storage medium, characterized in that it stores thereon a program or instructions, which when executed by a processor, implements the method according to any one of claims 1 to 28 or implements the method according to claim 29.