WO2022117039A1 - Procédé d'indication de commande de puissance de srs, et procédé et dispositif de division de grappe de ressources - Google Patents

Procédé d'indication de commande de puissance de srs, et procédé et dispositif de division de grappe de ressources Download PDF

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WO2022117039A1
WO2022117039A1 PCT/CN2021/135085 CN2021135085W WO2022117039A1 WO 2022117039 A1 WO2022117039 A1 WO 2022117039A1 CN 2021135085 W CN2021135085 W CN 2021135085W WO 2022117039 A1 WO2022117039 A1 WO 2022117039A1
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srs resource
srs
tpc
clusters
cluster
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PCT/CN2021/135085
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English (en)
Chinese (zh)
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WO2022117039A9 (fr
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施源
拉盖施塔玛拉卡
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维沃移动通信有限公司
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Publication of WO2022117039A9 publication Critical patent/WO2022117039A9/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure

Definitions

  • the present application belongs to the field of communication technologies, and specifically relates to a power control indication method for a Sounding Reference Signal (SRS), a method for dividing resource clusters, and a device (the device may refer to a terminal or a network-side device).
  • SRS Sounding Reference Signal
  • the device may refer to a terminal or a network-side device.
  • New Radio As a fifth-generation mobile communication system, New Radio (NR) needs to support an unprecedented number of application scenarios, and it also needs to support traditional frequency bands, new high frequency bands and beam modes at the same time, which brings great influence to the design of power control. challenge.
  • NR New Radio
  • the embodiments of the present application provide an SRS power control indication method, resource cluster division method and device, which can solve the problem that TRP independent SRS power control cannot be implemented in a multi-TRP scenario.
  • a first aspect provides an SRS power control indication method, the method includes: a terminal receives downlink control information DCI, where the DCI includes a target transmission power control TPC domain set, and the target TPC domain set is used to indicate at least one Power control parameters corresponding to each of the multiple SRS resource clusters in the uplink carrier; the SRS is sent according to the power control parameters.
  • a method for dividing SRS resource clusters includes: a terminal determines at least two SRS resource clusters; wherein the SRS resource clusters include SRS resource sets and/or SRS resources, The at least two SRS resource clusters are divided according to one of the following ways: the configuration sequence of the SRS resource sets or the sequence of identification IDs; the configuration sequence of the SRS resources or the sequence of identification IDs; the SRS resources The sequence of clusters; the sequence of the SRS resources; the parameters associated with the SRS resource set.
  • a third aspect provides an SRS power control indication method, the method includes: a network side device sends DCI, where the DCI includes a target transmission power control TPC domain set, where the target TPC domain set is used to indicate at least one uplink Power control parameters corresponding to multiple SRS resource clusters in the carrier; receiving SRS, the SRS sent by the terminal according to the power control parameters.
  • a method for dividing SRS resource clusters includes: a network side device determines at least two SRS resource clusters; wherein the SRS resource clusters include SRS resource sets and/or SRS resources, the at least two SRS resource clusters are divided according to one of the following ways: the configuration sequence of the SRS resource sets or the sequence of identification IDs; the configuration sequence of the SRS resources or the sequence of identification IDs; the A sequence of SRS resource sets; a sequence of the SRS resources; and parameters associated with the SRS resource sets.
  • a terminal comprising: a receiving module configured to receive DCI, where the DCI includes a target transmission power control TPC domain set, and the target TPC domain set is used to indicate multiple SRSs in at least one uplink carrier Power control parameters corresponding to each resource cluster; a sending module, configured to send the SRS according to the power control parameters.
  • a terminal comprising: a determination module configured to determine at least two SRS resource clusters; wherein the SRS resource clusters include SRS resource sets and/or SRS resources, the at least two SRS resource clusters
  • the resource set clusters are divided according to one of the following ways: the configuration sequence of the SRS resource sets or the sequence of identification IDs; the configuration sequence of the SRS resources or the sequence of identification IDs; the sequence of the SRS resource clusters; The sequence of the SRS resources; the parameters associated with the SRS resource set.
  • a network side device including: a sending module configured to send DCI, where the DCI includes a target transmission power control TPC domain set, and the target TPC domain set is used to indicate multiple Power control parameters corresponding to each of the SRS resource clusters; a receiving module, configured to receive an SRS, the SRS sent by the terminal according to the power control parameters.
  • a network-side device comprising: a determination 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 include SRS resource sets and/or SRS resources.
  • the SRS resource clusters are divided according to one of the following methods: the configuration sequence of the SRS resource sets or the sequence of identification IDs; the configuration sequence of the SRS resources or the sequence of identification IDs; the sequence of the SRS resource clusters ; the sequence of the SRS resources; the parameters associated with the SRS resource set.
  • a terminal in a ninth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor Implement the method as described in the first aspect, or implement the method as described in the second aspect.
  • a tenth aspect provides a network-side device, the network-side device includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the When executed by the processor, the method as described in the third aspect is implemented, or the method as described in the fourth aspect is implemented.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, any one of the first to fourth aspects is implemented Methods.
  • a twelfth aspect provides 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 being When executed by the processor, the method described in any one of the first aspect to the fourth aspect is implemented.
  • a thirteenth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the first to fourth aspects The method of any of the aspects.
  • the DCI received by the terminal includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to each of multiple SRS resource clusters in at least one uplink carrier.
  • the embodiments of the present application can realize the independent power control of the SRS under each TRP, solve the problem that the power control of the SRS independent of the TRP cannot be realized in a multi-TRP scenario, and improve the transmission efficiency of the SRS.
  • FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a power control indication method of an SRS according to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a method for dividing resource clusters of SRS according to an embodiment of the present application
  • FIG. 4 is a schematic flowchart of a method for indicating a power control of an SRS according to another embodiment of the present application
  • FIG. 5 is a schematic flowchart of a method for dividing resource clusters of SRS according to another embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram 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 diagram of a communication device according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a network side device according to an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but these techniques can also be applied to applications other than NR system applications, such as 6th Generation , 6G) communication system.
  • NR New Radio
  • FIG. 1 shows a schematic diagram of a wireless communication system to which an embodiment of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, and wearable devices include: bracelets, headphones, glasses, etc.
  • PDA Personal Digital Assistant
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Next Generation Node B (gNB), Home Node B, Home Evolved Node B, WLAN Access point, WiFi node, Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. In the application embodiments, only the base station in the NR system is used as an example, but the specific type of the base station is not limited.
  • an embodiment of the present application provides an SRS power control indication method 200, the method can be executed by a terminal, in other words, the method can be executed by software or hardware installed in the terminal, and the method includes the following step.
  • the terminal receives downlink control information (Downlink Control Information, DCI), where the DCI includes a target transmission power control (Transmit Power Control, TPC) domain set, and the target TPC domain set is used to indicate at least one uplink carrier. Power control parameters corresponding to each of the SRS resource clusters.
  • DCI Downlink Control Information
  • TPC Transmission Power Control
  • S204 Send the SRS according to the power control parameter.
  • the target TPC domain set may include one or more TPC domains.
  • each TPC field is in one-to-one correspondence with each uplink carrier, and one TPC field is used to indicate power control parameters corresponding to multiple SRS resource clusters in one uplink carrier, and the power control parameter may be a closed-loop power adjustment amount. Wait.
  • a TPC field corresponding to the uplink carrier may be used to indicate power control parameters corresponding to the two SRS resource clusters.
  • one uplink carrier may also correspond to multiple TPC domains, there are multiple SRS resource clusters in the uplink carrier, and one TPC domain is used to indicate power control parameters corresponding to one SRS resource cluster.
  • the two TPC fields corresponding to the uplink carrier may be used to respectively indicate power control parameters corresponding to the two SRS resource clusters.
  • one SRS resource cluster may correspond to one transmission and reception point (Transmission and Reception Point, TRP), so that the power control of the SRSs in the SRS resource clusters of multiple TRPs can be implemented through DCI.
  • TRP Transmission and Reception Point
  • the SRS resource set cluster mentioned in the various embodiments of this application generally includes (or is associated with) one or more SRS resource sets, and each SRS resource set includes (or is associated with) one or more SRS resources. It should be noted that, other technical terms may also be used to describe the SRS resource set cluster, such as an SRS cluster, a set of SRS resource sets, and the like.
  • the DCI received by the terminal includes a target TPC domain set, and the target TPC domain set is used to indicate the respective power control parameters corresponding to multiple SRS resource clusters in at least one uplink carrier .
  • the embodiments of the present application facilitate the realization of the independent power control of the SRS under each TRP, can solve the problem that the power control of the SRS independent of the TRP cannot be realized in a multi-TRP scenario, and improve the transmission efficiency of the SRS.
  • the indication method of the TPC domain is for the DCI of type (type) A, and this case is introduced into the method 1 and the method 2.
  • the DCI is of type type A
  • multiple TPC domains in the target TPC domain set are in one-to-one correspondence with multiple uplink carriers indicated by high-layer parameters
  • one TPC domain indicates one of the uplink carriers.
  • Power control parameters corresponding to each of the multiple SRS resource clusters in the carrier For example, in DCI, the TPC field in a type A transport block (block) corresponds to the uplink carrier indicated in the carrier index (cc-IndexInOneCC-Set) in the carrier resource set, and one TPC field indicates one uplink carrier. The corresponding power control parameters of each of the multiple SRS resource clusters.
  • the overhead of the TPC field is a fixed value, and one TPC field indicates power control parameters corresponding to each of multiple (eg, two) SRS resource clusters in one uplink carrier.
  • the overhead of one TPC field is fixed at 4 bits, and includes the power control parameter modification commands of two SRS resource clusters.
  • the terminal does not need to interpret the indication field (corresponding to the SRS resource cluster not configured), so as to save terminal overhead.
  • the overhead of the TPC domain is related to the number of SRS resource clusters in the uplink carrier corresponding to the TPC domain. That is, the overhead of one TPC domain 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 carrier is 1, the overhead of the TPC domain corresponding to the carrier is 2 bits; if the number of SRS resource clusters in a carrier is 2, then the TPC domain corresponding to the carrier has 2 bits. The overhead is 4bit.
  • the DCI is of type 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 multiple TPC domains
  • the first TPC domain set includes multiple TPC domains.
  • Two TPC domain sets include one or more TPC domains, and any one TPC domain in the first TPC domain set and the second TPC domain set indicates the power control parameters of one SRS resource cluster in one uplink carrier , where one uplink carrier may include multiple SRS resource clusters.
  • a TPC domain in a type A block in the DCI corresponds to an SRS resource cluster in the uplink carrier indicated in cc-IndexInOneCC-Set .
  • 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 carriers indicated by the higher layer parameters.
  • the first set of TPC domains may be referred to as the set of basic TPC domains
  • the set of second TPC domains may be referred to as the set of additional TPC domains.
  • the sequence of TPC domains in the additional TPC domain set and the sequence of TPC domains in the basic TPC domain set are in one-to-one correspondence with the sequence of uplink carriers indicated in cc-IndexInOneCC-Set.
  • the order of the multiple 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 extension order corresponding manner; a staggered order corresponding manner.
  • the extension order corresponding manner includes: the TPC domains in the second TPC domain set are all located after or before the TPC domains in the first TPC domain set; that is, the extension order corresponding manner refers to the second TPC domain
  • the TPC domains in the set are all located after the TPC domains in the first TPC domain set, and vice versa, as described in the following examples 1 and 2.
  • Example 1 the corresponding manner of extension order, and the number of TPC domains in the second TPC domain set is only related to the number of uplink carriers (or simply referred to as carriers) indicated in cc-IndexInOneCC-Set.
  • the sequence of uplink carriers 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, and TPC 5, respectively corresponding to the first set cluster of uplink carrier 1 (in some subsequent examples, the SRS resource cluster is referred to as set cluster for short), and the first set of uplink carrier 2.
  • the cluster is the first set of uplink carrier 3, the first set of uplink carrier 4, and the first set of uplink carrier 5.
  • the second TPC domain set is TPC 1-1, TPC 2-1, TPC 3-1, TPC 4-1, TPC 5-1, which correspond to the second set cluster of uplink carrier 1, and the uplink
  • the second set of carrier 2 the second set of uplink carrier 3, the second set of uplink carrier 4, and the second set of uplink carrier 5.
  • TPC 1 TPC 2
  • TPC 3 TPC 4-1
  • TPC 5 TPC 5
  • uplink carrier 2 is the second set cluster
  • uplink carrier 3 is the second set cluster
  • uplink carrier 4 is the second set cluster
  • uplink carrier 5 is the second set cluster
  • the number of TPCs of the above-mentioned type A block remains unchanged, but the terminal can ignore the TPC 2-1 field , without interpretation to save overhead.
  • Example 2 the corresponding manner of extension order, and 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 sequence of uplink carriers 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, and TPC 5, which correspond to the first set of uplink carrier 1, the first set of uplink carrier 2, the first set of uplink carrier 3, and the first set of uplink carrier 4.
  • set cluster the first set cluster of uplink carrier 5.
  • only two set clusters are configured on uplink carriers 2 and 5 of the terminal, and only one set cluster is configured on the other uplink carriers.
  • the second TPC domain set includes only TPC2-1 and TPC5-1, which correspond to the second set cluster of uplink carrier 2 and the second set cluster of uplink carrier 5 respectively.
  • TPC 1, TPC 2, TPC 3, TPC 4, TPC 5, TPC2-1, TPC 5-1 which correspond to the first set cluster of uplink carrier 1 and uplink carrier 2 respectively.
  • the first set cluster is the first set of uplink carrier 3, the first set of uplink carrier 4, the first set of uplink carrier 5, the second set of uplink carrier 2, and the second set of uplink carrier 5.
  • the interleaving sequence corresponding manner mentioned above includes: the TPC domain in the first TPC domain set and the TPC domain in the second TPC domain set are in a one-to-one correspondence with the uplink carrier indicated by the high layer parameter. Next, multiple TPC domains in the first TPC domain set and one or more TPC domains in the second TPC domain set are arranged in a staggered order.
  • Example 3 the interleaving sequence corresponds to the method, and the additional number in the TPC domain set is only related to the number of uplink carriers indicated in cc-IndexInOneCC-Set.
  • Example 1 The corresponding assumptions in this example can refer to Example 1.
  • the order of TPCs in a type A block is as follows, TPC 1, TPC 1-1, TPC 2, TPC 2-1, TPC 3, TPC 3-1, TPC 4, TPC 4-1, TPC 5, TPC 5-1, corresponding to the first set of uplink carrier 1, the second set of uplink carrier 1, the first set of uplink carrier 2, the second set of uplink carrier 2, the first set of uplink carrier 3, and the first set of uplink carrier 3.
  • Two sets of clusters the first set of uplink carrier 4, the second set of uplink carrier 4, the first set of uplink carrier 5, and the second set of uplink carrier 5.
  • Example 4 Corresponding manner of interleaving order, and 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.
  • Example 2 The corresponding assumptions in this example can refer to Example 2.
  • TPC 1 TPC 2, TPC 2-1, TPC 3, TPC 4, TPC 5, TPC 5-1, respectively corresponding to the first set cluster of uplink carrier 1, the uplink carrier 2 first set cluster, uplink carrier 2 second set cluster, uplink carrier 3 first set cluster, uplink carrier 4 first set cluster, uplink carrier 5 first set cluster, uplink carrier 5 second set cluster.
  • the order of TPCs in a type A block is as follows, TPC 1, TPC 2-1, TPC 2, TPC 3, TPC 4, TPC 5-1, TPC 5.
  • TPC 1 corresponds to the first set of uplink carrier 1, the second set of uplink carrier 2, the first set of uplink carrier 2, the first set of uplink carrier 3, the first set of uplink carrier 4, and the second set of uplink carrier 5.
  • cluster corresponds to the first set cluster of uplink carrier 5.
  • the number of TPC domains in the second set of TPC domains is related to at least one of the following:
  • the total number of the multiple uplink carriers, the multiple uplink carriers may be indicated by a high layer parameter (eg, cc-IndexInOneCC-Set).
  • a high layer parameter eg, cc-IndexInOneCC-Set.
  • the number of TPC domains in the second set of TPC domains is only related to the number of the uplink carriers in 1), and the method further includes the following steps: if the target uplink carrier is configured with the first SRS If the resource cluster is clustered 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 it.
  • the target uplink carrier mentioned here may be any one or more of the uplink carriers indicated by the above-mentioned higher layer parameters.
  • the sequence of the second TPC domain set and the first TPC domain set may not be limited, or the sequence of the TPC domains may not be limited.
  • the DCI sent by the network side device is not limited to the above The sequence is not limited.
  • the terminal is not expected to limit at least one of the following:
  • the target TPC domain set supports a partial independent coding manner or a joint coding manner.
  • a certain TPC domain occupies 4 bits, the first 2 bits are used to indicate the first set cluster, and the last 2 bits are used to indicate the second set cluster; for another example, a certain TPC domain occupies 4 bits, using the joint coding method, each code point contains two Power control parameter indication of a set cluster.
  • the indication method of the TPC domain is for the DCI of type (type) B, and this case is divided into method 3 and method 4 for introduction.
  • the DCI is of type type B
  • a TPC domain (including only one TPC domain) in the target TPC domain set corresponds to an uplink carrier indicated by a high-level parameter
  • the TPC domain indicates one of the Power control parameters corresponding to each of the multiple SRS resource clusters in the uplink carrier.
  • a TPC domain in a type B block includes power control parameter modification commands corresponding to multiple set clusters.
  • the target TPC domain set includes a TPC domain.
  • this TPC domain is also referred to as a TPC domain set in this specification.
  • the overhead of the TPC field is a fixed value, and the TPC field indicates respective power control parameters corresponding to multiple (eg, two) SRS resource clusters in the uplink carrier.
  • the overhead of the TPC field is fixed at 4 bits, and includes power control parameter modification commands of two SRS resource clusters.
  • the terminal in 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 not configured), so as to save terminal overhead.
  • the overhead of the TPC domain is related to the number of SRS resource clusters in the uplink carrier corresponding to the TPC domain. That is, the overhead of the TPC domain 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 domain is 4 bits.
  • the DCI is of type type B
  • the target TPC domain set includes a first TPC domain and a second TPC domain
  • the target TPC domain set includes only the first TPC domain
  • the The first TPC field and the second TPC field indicate the power control parameters of one SRS resource cluster in one of the uplink carriers, for example, the first TPC field indicates the power control parameters of the first SRS resource cluster in the uplink carrier ;
  • the second TPC field indicates the power control parameters of the second SRS resource cluster in the uplink carrier.
  • the number of TPC domains in the target TPC domain set (or whether the second TPC domain exists) is related to the number of the SRS resource set clusters in the uplink carrier. That is, the number of TPC domains in the target TPC domain set is related to the number of set clusters configured in the uplink carrier corresponding to the block where it is located.
  • the number of set clusters can be one or two, and correspondingly, the number of TPC domains can also be one or more. 2.
  • the number of TPC domains in the target TPC domain set (or whether the second TPC domain exists) is independent of the number of the SRS resource clusters in the uplink carrier, and the method further includes : If the uplink carrier is configured with the first SRS resource cluster but not configured with the second SRS resource cluster, the terminal ignores the second TPC field.
  • Example 5 and Example 6 are described below.
  • Example 5 the number of TPC domains in the target TPC domain set is independent of the number of set clusters.
  • a type B block corresponds to uplink carrier 1
  • the first TPC domain is TPC 1
  • TPC1 corresponds to the first set cluster of uplink carrier 1
  • the second TPC domain is TPC1-1
  • TPC1-1 corresponds to the second set cluster of uplink carrier 1 .
  • TPC1, TPC 1-1 respectively correspond to the first set cluster of uplink carrier 1 and the second set cluster of uplink carrier 1.
  • the terminal does not interpret the TPC1-1 field.
  • Example 6 the number of TPC domains in the target TPC domain set is related to the number of set clusters.
  • a type B block corresponds to uplink carrier 1
  • the first TPC domain is TPC 1
  • TPC1 corresponds to the first set cluster of uplink carrier 1.
  • the second TPC domain is TPC1-1
  • TPC1-1 corresponds to the second set cluster of uplink carrier 1.
  • the order of TPCs in a type A block is as follows, TPC1, TPC1-1, respectively correspond to the first set cluster of uplink carrier 1, the uplink carrier 1 The second set cluster.
  • the TPC sequence in a type A block is as follows, TPC1, corresponding to the first set cluster of uplink carrier 1.
  • the target TPC domain set supports a partial independent coding mode or a joint coding mode.
  • a certain TPC domain occupies 4 bits, the first 2 bits are used to indicate the first set cluster, and the last 2 bits are used to indicate the second set cluster; for another example, a certain TPC domain occupies 4 bits, using the joint coding method, each code point contains two Power control parameter indication of a set cluster.
  • the foregoing embodiments all describe the power control indication method of the SRS.
  • the following will introduce the method for dividing the SRS resource cluster in several embodiments.
  • the method for dividing SRS resource clusters introduced in the subsequent embodiments may be implemented in combination with any of the foregoing embodiments, or may be implemented independently.
  • the plurality of the SRS resource set clusters mentioned in Embodiment 100 are distinguished according to the configuration order of the SRS resource sets or the order of identification IDs; wherein, the configuration order includes the configuration time from front to back or from the back Forward; the order of the IDs includes small to large or large to small.
  • any two of the SRS resource set clusters include the same number of SRS resource sets.
  • the number of SRS resource sets configured in the second set cluster is consistent with the number of SRS resource sets configured in the first set cluster, that is, the number is equal.
  • the first half of the sets are the first set cluster
  • the second half of the sets are the second set cluster, and vice versa, wherein the first half of the set and the second half of the set are according to the configuration.
  • the number of sets is determined.
  • Example 1 Determine from front to back according to the configuration order of the SRS resource set, and determine the first set cluster and the second set cluster according to the number of SRS resource sets.
  • a total of 6 sets are configured in the network. According to the order of configuration in the SRS-config field, they are set 2, set 3, set 1, set 4, set 5, and set 6, where set 2 indicates that the ID of the set is 2. , and so on.
  • the first set cluster set 2, set 3, set1; the second set cluster: set4, set 5, set 6.
  • Example 2 according to the order of SRS resource set IDs from small to large, and determine the first set cluster and the second set cluster according to the number of sets.
  • a total of 6 sets are configured in the network. According to the order of configuration in the SRS-config field, they are set 2, set 3, set 1, set 4, set 5, and set 6, where set 2 indicates that the ID of the set is 2. , and so on.
  • the first set cluster set 1, set 2, set3; the second set cluster: set4, set 5, set6.
  • the first embodiment can also indicate the number of the first set cluster and/or the second set cluster through the first signaling, and the first signaling includes DCI, a media access control control unit (Media Access Control-Control Element, MAC CE), at least one of Radio Resource Control (Radio Resource Control, RRC). That is, the first embodiment further includes the following step: the terminal receives the first indication signaling, where the first indication signaling is used to indicate the number of SRS resource sets included in the SRS resource set cluster.
  • the first indication signaling is used to indicate the number of SRS resource sets included in the SRS resource set cluster.
  • the first indication signaling indicates that the front part set configured by the terminal is the first set cluster, and the rear part set is the second set cluster, and vice versa, the front part set and the rear part set are determined according to the indicated number of sets .
  • Example 3 Determine according to the configuration sequence, and determine the first set cluster and the second set cluster according to the number of sets indicated by the first signaling.
  • the network is configured with 6 sets, which are set 2, set 3, set 1, set 4, set 5, and set 6 according to the order of configuration in the SRS-config field, where set 2 indicates that the ID of the set is 2 , and so on.
  • the first signaling indicates that the number of clusters in the first set is 2, the number of clusters in the second set is 4 by default. Then: the first set cluster: set 2, set 3; the second set cluster: set1, set4, set 5, set 6.
  • first signaling indicates that the number of clusters in the first set is 2, and indicates that the number of clusters in the second set is 3. Then the first set cluster: set 2, set 3; the second set cluster: set1, set4, set 5.
  • Embodiment 1 may also indicate the starting position + number of the first set cluster and/or the second set cluster, or the starting ID + number, etc. through second signaling, where the second signaling includes DCI, MAC CE, at least one of RRC.
  • the first embodiment further includes the following step: the terminal receives second indication signaling, where the second indication signaling is used to indicate at least one of the following target SRS resource set clusters in the multiple SRS resource set clusters:
  • the ID of the starting SRS resource set included such as the ID of the first SRS resource set included in the target SRS resource set cluster.
  • the number of included SRS resource sets such as the number of all SRS resource sets included in the target SRS resource set cluster.
  • the target SRS resource cluster mentioned in this example may be all the SRS resource clusters in the multiple SRS resource clusters, and may also be one or more SRS resource clusters therein.
  • the second indication signaling indicates that the front part set configured by the terminal is the first set cluster, and the rear part set is the second set cluster, and vice versa, the front part set and the rear part set are according to the instructions of the first set cluster and Or the specific location where the second set cluster is indicated is determined.
  • the SRS resource set may also be distinguished by the location of the SRS resource set of a specific usage (usage).
  • a plurality of the SRS resource set clusters are distinguished according to the SRS resource sets for specific purposes.
  • the specific-purpose SRS resource sets are located at adjacent positions of two SRS resource set clusters.
  • the position of the Xth specific-purpose SRS resource set is used to determine the Xth SRS resource set cluster and the (X+1)th SRS resource set cluster, where X is an integer greater than or equal to 1.
  • the position of the Y-th said purpose-specific SRS resource set is used to determine the (Y-1)-th SRS resource set cluster and the Y-th SRS resource set cluster, where Y is an integer greater than or equal to 2.
  • the specific-purpose SRS resource set satisfies at least one of the following:
  • the SRS resource set for the specific usage is predefined, for example, the specific usage can be any one agreed upon in the protocol.
  • the specific-purpose SRS resource set 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, the specific-purpose SRS resource set is codebook, and if the transmission mode of the PUSCH configuration is non-codebook (nonCodebook), the specific-purpose SRS resource set is nonCodebook.
  • the basis for dividing the set clusters includes: the configuration order of the SRS resource set + the SRS resource set that needs to be full of a specific usage is configured in the adjacent positions of the two set clusters in the order of the set clusters.
  • codebook transmission is configured in PUSCH, and the specific usage is codebook.
  • the network is configured with a total of 7 sets, which are set 2, set 3, set 1, set 4, set 5, set 6, and set 7 according to the order of configuration in the SRS-config field, and the corresponding usages are the antennas Switching (antenna switching), beam management (beam management), codebook, codebook, noncodebook, beam management, antenna switching, where set 2 indicates that the ID of the set is 2, and so on.
  • the set of the first codebook corresponds to the first set cluster
  • the set of the second codebook corresponds to the second set cluster. Then: the first set cluster: set 2, set 3, set 1; the second set cluster: set 4, set 5, set 6, set 7.
  • the set of the first codebook corresponds to the second set cluster
  • the set of the second codebook corresponds to the first set cluster. Then: the first set cluster: set 4, set 5, set 6, set 7; the second set cluster: set 2, set 3, set 1.
  • the basis for dividing the set cluster includes: the configuration sequence of the SRS resource set + the position of the Xth SRS resource set for the specific purpose is used to determine the Xth SRS resource set cluster and the (X+1)th SRS resource cluster.
  • codebook transmission is configured in PUSCH, and the specific usage is codebook.
  • This example assumes that the network is configured with a total of 7 sets, which are set 2, set 3, set 1, set 4, set 5, set 6, and set 7 according to the order of configuration in the SRS-config field.
  • the corresponding usages are antenna switching. , beam management, codebook, noncodebook, beam management, codebook, antenna switching where set 2 means the ID of the set is 2, and so on.
  • the first codebook and its preceding set correspond to the first set cluster
  • the first set cluster set 2, set 3, set 1
  • the second set cluster set 4, set 5, set 6, set 7.
  • the division basis of the set cluster includes: the configuration sequence of the SRS resource set + the position of the Y-th specific-purpose SRS resource set is used to determine the (Y-1)-th SRS resource set cluster and the first SRS resource set.
  • Y SRS resource clusters This example assumes that codebook transmission is configured in PUSCH, and the specific usage is codebook.
  • This example assumes that the network is configured with a total of 7 sets, which are set 2, set 3, set 1, set 4, set 5, set 6, and set 7 according to the order of configuration in the SRS-config field.
  • the corresponding usages are antenna switching. , codebook, beam management, codebook, noncodebook, beam management, antenna switching where set 2 means the ID of the set is 2, and so on.
  • the set before the second codebook corresponds to the first set cluster
  • the second codebook and the sets after it correspond to the second set cluster
  • Y 2 in this example. That is: the first set cluster: set 2, set 3, set 1; the second set cluster: set 4, set 5, set 6, set 7.
  • the multiple SRS resource clusters mentioned in Embodiment 100 are distinguished according to the configuration sequence of SRS resources or the sequence of identification IDs; wherein, the configuration sequence includes from front to back or from back to front; The order of the IDs includes from small to large or from large to small.
  • any two SRS resource clusters include an equal number of SRS resources.
  • the number of SRS resources configured in the second set cluster is consistent with the number of SRS resources configured in the first set cluster, that is, the number is equal.
  • the sets associated with the first half of the resources belong to the first set cluster, and the sets associated with the second half of the resources belong to the second set cluster, and vice versa.
  • the first half of the resources and the second half of the resources are configured according to the configuration. The number of resources is determined.
  • 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 may also be indicated by third signaling, where the third signaling includes DCI, MAC CE, at least one of RRC. That is, Embodiment 2 further includes the following step: the terminal receives third indication signaling, where the third indication signaling is used to indicate the number of SRS resources included in the SRS resource cluster.
  • the third indication signaling is used to indicate that among all the configured SRS resources, the sets associated with the first half of the resources belong to the first set cluster, and the sets associated with the second half of the resources belong to the second set cluster, and vice versa, the first half of the resources And the latter half of the resources are determined according to the number of configured resources.
  • Embodiment 2 may also indicate the starting position + number of the first set cluster and/or the second set cluster, or the starting ID + number, etc. through fourth signaling, where the fourth signaling includes DCI, MAC CE, at least one of RRC.
  • the second embodiment further includes the following step: the terminal receives fourth indication signaling, where the fourth indication signaling is used to indicate at least one of the following target SRS resource clusters in the multiple SRS resource clusters:
  • the ID of the starting SRS resource included such as the ID of the first SRS resource included in the target SRS resource cluster.
  • the number of included SRS resources such as the number of all SRS resources included in the target SRS resource cluster.
  • the target SRS resource cluster mentioned in this example may be all the SRS resource clusters in the multiple SRS resource clusters, and may also be one or more SRS resource clusters therein.
  • the fourth indication signaling indicates that the set associated with the previous part of the resource belongs to the first set cluster, and the set associated with the latter part of the resource belongs to the second set cluster, and vice versa, the former part of the resource and the latter part of the resource are according to the instructions of the first set cluster.
  • the specific location at which the resource associated within the set cluster and/or the resource associated within the second set cluster is indicated is determined.
  • the same SRS resource should not be associated with the two SRS resources of the two SRS resource clusters, that is, the terminal does not expect the same SRS resource to be used by more than one of the SRS resource sets. cluster association.
  • embodiment 100 further includes the step of: receiving configuration information, where the configuration information is used to configure at least one of the following:
  • the multiple set clusters are the first set cluster and the second set cluster.
  • the first set cluster sequence and/or the associated resource sequence in the first set cluster may be configured according to the prior art, and this embodiment may additionally configure the first set cluster The second set cluster sequence and/or the associated resource sequence within the second set cluster.
  • the configuration parameter srs-ResourceSetToAddModList corresponds to the first set cluster
  • the configuration parameter srs-ResourceSetToAddModList-v17 corresponds to the second set cluster
  • the second set cluster sequence and/or the associated resource sequence in the second set cluster is additionally configured.
  • the configuration parameter srs-ResourceSetToAddModList corresponds to the first set cluster;
  • the configuration parameter srs-ResourceSetToAddModList-v17 corresponds to the second set cluster;
  • the configuration parameter srs-ResourceToAddModList indicates that the resources in the sequence are used to associate sets in the first set cluster;
  • configure The parameter srs-ResourceToAddModList-v17 indicates that the resources in the sequence are used to associate sets in the second set cluster.
  • the SRS resource set in the SRS resource set cluster is determined according to the parameters associated with the SRS resource set; and/or; the specific-purpose SRS resource set in the SRS resource set cluster is determined according to the SRS resource set Determined by the parameters associated with the specific use of the SRS resource set.
  • any two SRS resource sets in one of the SRS resource sets meet at least one of the following: have the same path loss reference RS, have the same spatial beam information, have the same associated RS, and be associated with the same transmission
  • the receiving point TRP index is associated with the same control resource set resource pool index, has the same power control parameter index, and has the same closed-loop power control index group.
  • the SRS resource sets in different SRS resource clusters satisfy at least one of the following: have different pathloss reference RSs, have different spatial beam configurations, have different associated RSs, and associate different SRS resource IDs , associated with different TRP indexes, associated with different control resource set resource pool indexes (CORESET pool indexes), with different power control parameter indexes, and with different closed-loop power control index groups.
  • SRS resource clusters can be divided according to the parameters associated with the SRS resource set. This condition can be independent, or can be combined with the methods provided in the above Embodiments 1 to 3. A set with a specific usage is restricted.
  • the power control parameter index mentioned above may be configured under each SRS set, for example, when the power control parameter index is an optional configuration parameter and does not need to be configured, the default index is used.
  • the power of the SRS can be obtained by the following formula:
  • the power control parameter index has no effect.
  • t in each of the above formulas represents a power control parameter index or an SRS resource cluster index.
  • the embodiments of the present application further provide a SRS resource cluster division method, as shown in FIG. 3 , the method includes: Follow the steps below:
  • the terminal determines at least two SRS resource clusters, 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 methods: Configuration of SRS resource sets sequence or sequence of identification IDs; configuration sequence of SRS resources or sequence of identification IDs; sequence of SRS resource clusters; sequence of SRS resources; parameters associated with SRS resource sets.
  • At least two SRS resource clusters may be determined in various ways, wherein one SRS resource cluster may correspond to one TRP.
  • one SRS resource cluster may correspond to one TRP.
  • the SRS power control indication method and resource cluster division method are described in detail above with reference to FIG. 2 and FIG. 3 .
  • a method for indicating a power control of an SRS and a method for dividing a resource cluster according to another embodiment of the present application will be described in detail below with reference to FIG. 4 and FIG. 5 . It can be understood that the interaction between the network side device and the terminal described from the network side device is the same as the description of the terminal side in the methods shown in FIG. 2 and FIG. 3 , and related descriptions are appropriately omitted to avoid repetition.
  • FIG. 4 is a schematic flowchart of the implementation of the SRS power control indication method according to the embodiment of the present application, which can be applied to a network side device. As shown in FIG. 4 , the method 400 includes the following steps.
  • the network side device sends DCI, where the DCI includes a target transmission power control TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to each of multiple SRS resource clusters in at least one uplink carrier.
  • S404 Receive an SRS, where the SRS is sent by the terminal according to the power control parameter.
  • the DCI sent by the network side device includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to multiple SRS resource clusters in at least one uplink carrier.
  • the embodiments of the present application facilitate the realization of the independent power control of the SRS under each TRP, can solve the problem that the power control of the SRS independent of the TRP cannot be realized in a multi-TRP scenario, and improve the transmission efficiency of the SRS.
  • FIG. 5 is a schematic flowchart of an implementation of a method for dividing a resource cluster of an SRS according to an embodiment of the present application, which can be applied to a network side device. As shown in FIG. 5 , the method 500 includes the following steps.
  • the network side device determines at least two SRS resource clusters, 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 methods: SRS resource sets The sequence of configuration of SRS resources or the sequence of identification IDs; the configuration sequence of SRS resources or the sequence of identification IDs; the sequence of SRS resource clusters; the sequence of SRS resources; and the parameters associated with SRS resource sets.
  • At least two SRS resource clusters may be determined in various ways, wherein one SRS resource cluster may correspond to one TRP.
  • one SRS resource cluster may correspond to one TRP.
  • FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in FIG. 6 , the terminal 600 includes the following modules.
  • the receiving module 602 may be configured to receive DCI, where the DCI includes a target transmission power control TPC domain set, where the target TPC domain set is used to indicate respective power control parameters corresponding to multiple SRS resource clusters in at least one uplink carrier.
  • the sending module 604 is configured to send the SRS according to the power control parameter.
  • the DCI received by the terminal includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to each of multiple SRS resource clusters in at least one uplink carrier.
  • the embodiments of the present application facilitate the realization of the independent power control of the SRS under each TRP, can solve the problem that the power control of the SRS independent of the TRP cannot be realized in a multi-TRP scenario, and improve the transmission efficiency of the SRS.
  • the TPC domains in the target TPC domain set are in one-to-one correspondence with the uplink carriers indicated by high-layer parameters, and one TPC domain indicates multiple SRS resource sets in one uplink carrier. Power control parameters corresponding to each cluster.
  • the overhead of the TPC domain is a fixed value.
  • the overhead of the TPC domain is related to the number of SRS resource clusters in the uplink carrier corresponding to the TPC domain.
  • the DCI is of type type A
  • the target TPC domain set includes a first TPC domain set and a second TPC domain set
  • Any TPC field in the set indicates the power control parameter of one SRS resource cluster in one of the uplink carriers.
  • 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 carriers.
  • the order of a plurality of TPC domains in the first TPC domain set and one or more TPC domains in the second TPC domain set satisfies one of the following: an extension order corresponding manner; Corresponding way of staggered order.
  • the corresponding manner of the extension order includes: the TPC domains in the second TPC domain set are all located after or before the TPC domains in the first TPC domain set.
  • the number of TPC domains in the second TPC domain set is related to at least one of the following: the number of multiple uplink carriers; the SRS resources in each uplink carrier the number of clusters.
  • the number of TPC domains in the second set of TPC domains is only related to the number of the uplink carriers, and the receiving module 602 may be configured to: if the target uplink carrier is configured with the first In one SRS resource cluster but the second SRS resource cluster is not configured, the TPC domain corresponding to the target uplink carrier in the second TPC domain set is ignored.
  • the terminal does not expect to limit at least one of the following: the sequence of the first TPC domain set and the second TPC domain set; the TPC domains in the first TPC domain set and the sequence of the TPC domains in the second TPC domain set.
  • the DCI is type B
  • the target TPC domain set includes a first TPC domain and a second TPC domain or only the first TPC domain, the first TPC domain and The second TPC field indicates a power control parameter of one SRS resource cluster in one of the uplink carriers.
  • the number of TPC domains in the target TPC domain set is related to the number of the SRS resource set clusters in the uplink carrier.
  • the number of TPC domains in the target TPC domain set is irrelevant to the number of the SRS resource set clusters in the uplink carrier, and the receiving module 602 may be configured to: if the uplink The first SRS resource cluster is configured in the carrier but the second SRS resource cluster is not configured, and the second TPC field is ignored.
  • the target TPC domain set supports a partial independent coding manner or a joint coding manner.
  • a plurality of the SRS resource clusters are distinguished according to the configuration sequence of the SRS resource sets or the sequence of the identification ID; wherein, the configuration sequence includes the configuration time from front to back or from back to front; The order of the IDs includes small to large or large to small.
  • any two of the SRS resource set clusters include the same number of SRS resource sets.
  • the receiving module 602 may be configured to: receive first indication signaling, where the first indication signaling is used to indicate the number of SRS resource sets included in the SRS resource set cluster.
  • the receiving module 602 may be configured to: receive second indication signaling, where the second indication signaling is used to indicate the following of the target SRS resource cluster in the multiple SRS resource clusters At least one of: the starting position of the included SRS resource set; the ID of the included starting SRS resource set; the number of the included SRS resource set.
  • a plurality of the SRS resource set clusters are distinguished according to SRS resource sets for specific purposes.
  • the special-purpose SRS resource set is located at a position adjacent to two SRS resource set clusters; or the position of the X-th special-purpose SRS resource set is used to determine the X-th SRS resource set.
  • the SRS resource set and the (X+1)th SRS resource set, X is an integer greater than or equal to 1; or the position of the Yth specific-purpose SRS resource set is used to determine the (Y-1)th The SRS resource cluster and the Y-th SRS resource cluster, where Y is an integer greater than or equal to 2.
  • the specific-purpose SRS resource set satisfies at least one of the following: if the number of the specific-purpose SRS resource set is less than 2, the terminal considers that there is only one SRS resource set cluster ;
  • the special-purpose SRS resource set is predefined; the special-purpose SRS resource set is determined according to the transmission mode of the physical uplink shared channel PUSCH.
  • a plurality of the SRS resource clusters are distinguished according to the configuration sequence of SRS resources or the sequence of identification IDs; wherein, the configuration sequence includes from front to back or from back to front; The order includes small to large or large to small.
  • any two of the SRS resource clusters include the same number of SRS resources.
  • the receiving module 602 may be configured to: receive third indication signaling, where the third indication signaling is used to indicate the number of SRS resources included in the SRS resource cluster.
  • the receiving module 602 may be configured to: receive fourth indication signaling, where the fourth indication signaling is used to indicate the following of the target SRS resource cluster in the multiple SRS resource clusters At least one of: the starting position of the included SRS resources; the ID of the included starting SRS resources; the number of the included SRS resources.
  • the terminal does not expect the same SRS resource to be associated with more than one SRS resource cluster.
  • the receiving module 602 may be configured to: receive configuration information, where the configuration information is used to configure at least one of the following: a sequence of the SRS resource cluster; Sequence of SRS resources.
  • the SRS resource set in the SRS resource set cluster is determined according to the parameters associated with the SRS resource set; and/or the SRS resource set for a specific purpose in the SRS resource set cluster It is determined according to the parameters associated with the specific-purpose SRS resource set.
  • any two SRS resource sets in one of the SRS resource sets meet at least one of the following: have the same path loss reference RS, have the same spatial beam information, and have the same associated RS , associated with the same TRP index of the sending and receiving point, associated with the same control resource set resource pool index, with the same power control parameter index, and with the same closed-loop power control index group.
  • the SRS resource sets in different SRS resource sets meet at least one of the following: have different path loss reference RSs, have different spatial beam configurations, have different associated RSs, and have different associated RSs.
  • Different SRS resource IDs are associated with different TRP indexes, associated with different control resource set resource pool indexes, have different power control parameter indexes, and have different closed-loop power control index groups.
  • the terminal 600 may refer to the process of the method 200 corresponding to the embodiment of the present application, and each unit/module and the above-mentioned other operations and/or functions in the terminal 600 are respectively in order to realize the corresponding process in the method 200, And can achieve the same or equivalent technical effects, for the sake of brevity, details are not repeated here.
  • FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in FIG. 7 , the terminal 700 includes the following modules.
  • a determination 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 methods : the configuration sequence of the SRS resource set or the sequence of the identification ID; the configuration sequence of the SRS resource or the sequence of the ID ID; the sequence of the SRS resource cluster; the sequence of the SRS resource; the SRS resource set associated parameters.
  • At least two SRS resource clusters may be determined in various ways, wherein one SRS resource cluster may correspond to one TRP.
  • one SRS resource cluster may correspond to one TRP.
  • the terminal 700 may refer to the process of the method 300 corresponding to the embodiment of the present application, and each unit/module and the above-mentioned other operations and/or functions in the terminal 700 are respectively in order to implement the corresponding process in the method 300, And can achieve the same or equivalent technical effects, for the sake of brevity, details are not repeated here.
  • the terminal in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in the terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the terminal in this embodiment of the present application may be a device having an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the terminal provided in this embodiment of the present application can implement each process implemented by the method embodiments in FIG. 2 to FIG. 3 , and achieve the same technical effect. To avoid repetition, details are not described 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 , the network side device 800 includes the following modules.
  • the sending module 802 is configured to send DCI, where the DCI includes a target transmission power control TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to each of multiple SRS resource clusters in at least one uplink carrier.
  • the receiving module 804 is configured to receive an SRS, where the SRS is sent by the terminal according to the power control parameter.
  • the DCI sent by the network side device includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to multiple SRS resource clusters in at least one uplink carrier.
  • the embodiments of the present application can solve the problem that TRP-independent SRS power control cannot be implemented in a multi-TRP scenario, facilitate the implementation of SRS independent power control under each TRP, and improve SRS transmission efficiency.
  • each unit/module and the above-mentioned other operations and/or functions in the network-side device 800 are for implementing the method 400 , respectively. and can achieve the same or equivalent technical effects.
  • no further description is given here.
  • 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 , the network side device 900 includes the following modules.
  • the determining module 902 can be used 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 performed in one of the following ways Divided: the configuration sequence of the SRS resource set or the sequence of identification IDs; the configuration sequence of the SRS resources or the sequence of identification IDs; the sequence of the SRS resource clusters; the sequence of the SRS resources; the SRS resource Set associated parameters.
  • At least two SRS resource clusters may be determined in various ways, wherein one SRS resource cluster may correspond to one TRP.
  • one SRS resource cluster may correspond to one TRP.
  • each unit/module and the above-mentioned other operations and/or functions in the network-side device 900 are for the purpose of implementing the method 500 , respectively. and can achieve the same or equivalent technical effects.
  • no further description is given here.
  • an embodiment of the present application further provides a communication device 1000, including a processor 1001, a memory 1002, a program or instruction stored in the memory 1002 and executable on the processor 1001,
  • a communication device 1000 including a processor 1001, a memory 1002, a program or instruction stored in the memory 1002 and executable on the processor 1001
  • the communication device 1000 is a terminal
  • the program or instruction is executed by the processor 1001
  • each process of the above-mentioned embodiments of the SRS power control instruction method and the resource cluster division method can be achieved, and the same technical effect can be achieved.
  • each process of the above-mentioned embodiments of the SRS power control instruction method and the resource cluster division method can be achieved, and the same technical effect can be achieved, which is: To avoid repetition, I will not repeat them here.
  • FIG. 11 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, a processor 1110 and other components .
  • the terminal 1100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1110 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1104 may include a graphics processor (Graphics Processing Unit, GPU) 11041 and a microphone 11042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 1106 may include a display panel 11061, which 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 called 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, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described herein again.
  • the radio frequency unit 1101 receives the downlink data from the network side device, and then processes it to the processor 1110; in addition, sends the uplink data to the network side device.
  • 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 as well as various data.
  • the memory 1109 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1109 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM) ), erasable programmable read-only memory (ErasablePROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • ErasablePROM ErasablePROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 1110 may include one or more processing units; optionally, the processor 1110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor 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 transmission power control TPC domain set, and the target TPC domain set is used to indicate at least one uplink carrier in a plurality of SRS resource clusters corresponding to each Power control parameters; the radio frequency unit 1101 is configured to send the SRS according to the power control parameters.
  • a processor 1110 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 methods : the configuration sequence of the SRS resource set or the sequence of the identification ID; the configuration sequence of the SRS resource or the sequence of the ID ID; the sequence of the SRS resource cluster; the sequence of the SRS resource; the SRS resource set associated parameters.
  • the DCI received by the terminal includes a target TPC domain set, where the target TPC domain set is used to indicate power control parameters corresponding to each of multiple SRS resource clusters in at least one uplink carrier.
  • the embodiments of the present application facilitate the realization of the independent power control of the SRS under each TRP, can solve the problem that the power control of the SRS independent of the TRP cannot be realized in a multi-TRP scenario, and improve the transmission efficiency of the SRS.
  • At least two SRS resource clusters may be determined in various ways, wherein one SRS resource cluster may correspond to one TRP.
  • one SRS resource cluster may correspond to one TRP.
  • the terminal 1100 provided in this embodiment of the present application can also implement the processes of the above-mentioned SRS power control indication method and resource cluster division method, and can achieve the same technical effect, which is not repeated here to avoid repetition.
  • the network-side device 1200 includes: an antenna 121 , a radio frequency device 122 , and a baseband device 123 .
  • the antenna 121 is connected to the radio frequency device 122 .
  • the radio frequency device 122 receives information through the antenna 121, and sends the received information to the baseband device 123 for processing.
  • the baseband device 123 processes the information to be sent and sends it to the radio frequency device 122, and the radio frequency device 122 processes the received information and sends it out through the antenna 121.
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 123 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 123 , where the baseband apparatus 123 includes a processor 124 and a memory 125 .
  • the baseband device 123 may include, for example, at least one baseband board on which a plurality of chips are arranged, as shown in FIG. 12 , one of the chips is, for example, the processor 124 , which is connected to the memory 125 to call a program in the memory 125 to execute
  • the network-side device shown in the above method embodiments operates.
  • the baseband device 123 may further include a network interface 126 for exchanging information with the radio frequency device 122, and the interface is, for example, a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the network-side device in the embodiment of the present invention further includes: an instruction or program stored in the memory 125 and executable on the processor 124, and the processor 124 invokes the instruction or program in the memory 125 to execute the instruction or program shown in FIG. 8 or FIG. 9 . In order to avoid repetition, it is not repeated here.
  • the embodiments of the present application further provide a readable storage medium, the readable storage medium may be volatile or non-volatile, and a program or an instruction is stored on the readable storage medium, the program or When the instruction is executed by the processor, each process of the above-mentioned embodiments of the SRS power control instruction method and the resource cluster division method can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not described here.
  • the processor may be the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or an instruction to implement the above-mentioned SRS power control instruction method .
  • the various processes of the embodiments of the method for dividing a resource cluster can achieve the same technical effect. In order to avoid repetition, details are not repeated here.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • An embodiment of the present application further provides a computer program product, where the computer program product is stored in a non-transitory storage medium, and the computer program product is executed by at least one processor to implement each process of the foregoing resource allocation method embodiments, And can achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • An embodiment of the present application further provides a communication device, which is configured to perform each process of the foregoing resource allocation method embodiment, and can achieve the same technical effect. To avoid repetition, details are not described here.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) execute the methods described in the various embodiments of this application.
  • a storage medium such as ROM/RAM, magnetic disk, CD-ROM

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Un procédé d'indication de commande de puissance de SRS, et un procédé et un dispositif de division de grappe de ressources sont divulgués dans des modes de réalisation de la présente demande, aptes à résoudre le problème selon lequel une commande de puissance de SRS indépendante d'un TRP ne peut pas être obtenue dans un scénario multi-TRP. Le procédé fait appel aux étapes suivantes : un terminal recevant des informations de commande de liaison descendante (DCI), les DCI comprenant un ensemble de champs de commande de puissance de transmission (TPC) cible, et l'ensemble de champs TPC cible étant utilisé pour indiquer des paramètres de commande de puissance correspondant respectivement à une pluralité de grappes de ressources SRS dans au moins une porteuse de liaison montante ; et envoyant un SRS selon les paramètres de commande de puissance.
PCT/CN2021/135085 2020-12-02 2021-12-02 Procédé d'indication de commande de puissance de srs, et procédé et dispositif de division de grappe de ressources WO2022117039A1 (fr)

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