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CN110167126B - Control method and device for PUCCH power during multi-beam transmission - Google Patents

Control method and device for PUCCH power during multi-beam transmission Download PDF

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Publication number
CN110167126B
CN110167126B CN201810150989.2A CN201810150989A CN110167126B CN 110167126 B CN110167126 B CN 110167126B CN 201810150989 A CN201810150989 A CN 201810150989A CN 110167126 B CN110167126 B CN 110167126B
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power control
pucch
reference signal
terminal
management reference
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CN110167126A (en
Inventor
林祥利
郑方政
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Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN201810150989.2A priority Critical patent/CN110167126B/en
Priority to PCT/CN2019/071674 priority patent/WO2019157895A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • 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
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a method and a device for controlling PUCCH power during multi-beam transmission, which are used for solving the technical problem that PUCCH power control parameters cannot be determined when an MAC header does not contain PUCCH-Spatial-relationship-Info. The method comprises the following steps: when the terminal is configured to multi-beam transmission and the MAC header does not contain PUCCH-Spatial-relationship-Info, determining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, wherein the related downlink beam is a beam carrying a PDSCH.

Description

Control method and device for PUCCH power during multi-beam transmission
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for controlling Physical Uplink Control Channel (PUCCH) power during multi-beam transmission.
Background
With the development of mobile communication service demand, organizations such as the International Telecommunications Union (ITU) and the third Generation partnership project (3 GPP) have started to research New wireless communication systems, such as the fifth Generation wireless communication system (5Generation New RAT, 5G NR).
In the 5G NR, when the beamforming technique is employed, the terminal may determine the PUCCH power control parameter by using physical uplink control channel Spatial correlation indication information (PUCCH-Spatial-correlation-Info). The mapping Relation set of the PUCCH-Spatial-relationship-Info and the PUCCH power control parameter is configured through high-layer signaling. Wherein, the PUCCH-Spatial-relationship-Info needs to be indicated in a media access control header (MAC header), but whether the MAC header contains the PUCCH-Spatial-relationship-Info is optional. When the MAC header does not contain PUCCH-Spatial-relationship-Info, the PUCCH power control parameters cannot be determined in the prior art.
Disclosure of Invention
The embodiment of the invention provides a method and a device for controlling PUCCH power during multi-beam transmission, which are used for solving the technical problem that PUCCH power control parameters cannot be determined when an MAC header does not contain PUCCH-Spatial-relationship-Info.
In a first aspect, a method for controlling PUCCH power in multi-beam transmission is provided, where the method includes:
when the terminal is configured to multi-beam transmission and the MAC header does not include PUCCH-Spatial-correlation-Info, a PUCCH power control parameter is determined according to a beam management reference signal of a related Downlink beam, where the related Downlink beam is a beam carrying a Physical Downlink Shared Channel (PDSCH).
In a possible implementation manner, the PUCCH power control parameter includes a downlink reference signal resource sequence number q used in path loss measurementdDetermining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, including:
determining the resource sequence number of the beam management reference signal as the qd；
When the transmission configuration indicates that the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; when the TCI is not transmitting the DCI, the related downlink beam is a downlink beam configured with a control resource set (CORESET) for scheduling the target PDSCH.
In a possible implementation manner, the PUCCH power control parameter includes a downlink reference signal resource sequence number q used in path loss measurementdWhen the terminal is configured with two closed-loop power control loops, determining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, including:
determining the resource sequence number of the beam management reference signal as the qd；
When the transmission configuration indicates that the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; and when the TCI does not transmit the DCI, the related downlink beam is a downlink beam for receiving downlink scheduling information and TPC information.
In one possible implementation, the PUCCH power control parameter includes P and PoAssociated sequence number quSaid P isoConfiguring PUCCH target power parameter of the terminal for high layer, and managing reference according to beam of related downlink beamA signal to determine a PUCCH power control parameter, comprising:
determining the P to which the beam management reference signal matchesoAssociated sequence number of qu。
In a possible implementation manner, the determining the PUCCH power control parameter according to a beam management reference signal of a related downlink beam when the terminal is configured with two closed loop power control loops includes:
determining the number of the closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops as the/;
wherein a closed-loop power control loop of the two closed-loop power control loops associated with the beam management reference signal is configured by higher layer signaling.
In one possible implementation, the beam management reference signal is a channel state information reference signal (CSI-RS) or a synchronization signal block (SS block).
In a third aspect, a method for controlling physical uplink control channel PUCCH power in multi-beam transmission is provided, where the method includes:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info:
and sending a high-level signaling, wherein the high-level signaling is used for configuring a mapping relation between the beam management reference signal and the content associated with the PUCCH power control parameter.
In one possible implementation, the PUCCH power control parameter includes P and PoAssociated sequence number quSaid P isoThe high layer signaling is used for configuring the beam management reference signal and the P in the terminal for PUCCH target power parameteroThe mapping relationship of (2).
In a possible implementation manner, the PUCCH power control parameter includes a closed-loop power control loop number i, and when the terminal is configured with two closed-loop power control loops, the higher layer signaling is used to configure a closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops.
In a third aspect, a terminal is provided, where the terminal includes:
a memory to store instructions;
a processor for reading the instructions in the memory, performing the following processes:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info, determining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, wherein the related downlink beam is a beam carrying a Physical Downlink Shared Channel (PDSCH).
In a possible implementation manner, the PUCCH power control parameter includes a downlink reference signal resource sequence number q used in path loss measurementdThe processor determines a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, including:
determining the resource sequence number of the beam management reference signal as the qd；
When the transmission configuration indicates that the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; and when the TCI is not used for transmitting the DCI, the related downlink beam is a downlink beam which is configured with a control resource set (CORESET) for scheduling the target PDSCH.
In a possible implementation manner, the PUCCH power control parameter includes a downlink reference signal resource sequence number q used in path loss measurementdWhen the terminal is configured with two closed-loop power control loops, the processor performs determining a PUCCH power control parameter according to a beam management reference signal of a relevant downlink beam, including:
determining the resource sequence number of the beam management reference signal as the qd；
When the transmission configuration indicates that the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; and when the TCI does not transmit the DCI, the related downlink beam is a downlink beam for receiving downlink scheduling information and TPC information.
In one possible implementation, the PUCCH power control parameter includes P and PoAssociated sequence number quSaid P isoThe processor determines a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, where the PUCCH target power parameter of the terminal configured for a higher layer includes:
determining the P to which the beam management reference signal matchesoAssociated sequence number of qu。
In one possible implementation manner, the determining the PUCCH power control parameter includes a closed-loop power control loop number i, and when the terminal is configured with two closed-loop power control loops, the determining the PUCCH power control parameter according to a beam management reference signal of an associated downlink beam includes:
determining the number of the closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops as the/;
wherein a closed-loop power control loop of the two closed-loop power control loops associated with the beam management reference signal is configured by higher layer signaling.
In a possible implementation manner, the beam management reference signal is a channel state information reference signal CSI-RS or a synchronization signal block SS block.
In a fourth aspect, a base station is provided, the base station comprising:
a memory to store instructions;
a processor for reading the instructions in the memory, performing the following processes:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info, transmitting a high-level signaling through the transceiver, wherein the high-level signaling is used for configuring a mapping Relation between beam management reference signals and contents associated with PUCCH power control parameters.
In one possible implementation, the PUCCH power control parameter includes P and PoAssociated sequence number quSaid P isoThe high layer signaling is used for configuring the beam management reference signal and the P in the terminal for PUCCH target power parameteroThe mapping relationship of (2).
In a possible implementation manner, the PUCCH power control parameter includes a closed-loop power control loop number i, and when the terminal is configured with two closed-loop power control loops, the higher layer signaling is used to configure a closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops.
In a fifth aspect, a terminal is provided, where the terminal includes a PUCCH power control parameter determining module, configured to:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info:
and determining PUCCH power control parameters according to the beam management reference signals of the related downlink beams, wherein the related downlink beams are beams for bearing a Physical Downlink Shared Channel (PDSCH).
In a possible implementation manner, the PUCCH power control parameter includes a downlink reference signal resource sequence number q used in path loss measurementdThe PUCCH power control parameter determination module is configured to:
determining the resource sequence number of the beam management reference signal as the qd；
When the transmission configuration indicates that the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; and when the TCI is not used for transmitting the DCI, the related downlink beam is a downlink beam which is configured with a control resource set (CORESET) for scheduling the target PDSCH.
In one possible implementation, the PUCCH power control parameter includes path lossDownlink reference signal resource sequence number q used in power consumption measurementdWhen the terminal is configured with two closed-loop power control loops, the PUCCH power control parameter determining module is configured to:
determining the resource sequence number of the beam management reference signal as the qd；
When the transmission configuration indicates that the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; and when the TCI does not transmit the DCI, the related downlink beam is a downlink beam for receiving downlink scheduling information and TPC information.
In one possible implementation, the PUCCH power control parameter includes P and PoAssociated sequence number quSaid P isoThe PUCCH target power parameter of the terminal configured for a higher layer, the PUCCH power control parameter determining module is configured to:
determining the P to which the beam management reference signal matchesoAssociated sequence number of qu。
In one possible implementation manner, the PUCCH power control parameter includes a closed loop power control loop number i, and when the terminal is configured with two closed loop power control loops, the PUCCH power control parameter determining module is configured to:
determining the number of the closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops as the/;
wherein a closed-loop power control loop of the two closed-loop power control loops associated with the beam management reference signal is configured by higher layer signaling.
In a possible implementation manner, the beam management reference signal is a channel state information reference signal CSI-RS or a synchronization signal block SS block.
In a sixth aspect, a base station is provided, where the base station includes a higher layer signaling sending module, configured to:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info:
and sending a high-level signaling, wherein the high-level signaling is used for configuring a mapping relation between the beam management reference signal and the content associated with the PUCCH power control parameter.
In one possible implementation, the PUCCH power control parameter includes P and PoAssociated sequence number quSaid P isoThe high layer signaling is used for configuring the beam management reference signal and the P in the terminal for PUCCH target power parameteroThe mapping relationship of (2).
In a possible implementation manner, the PUCCH power control parameter includes a closed-loop power control loop number i, and when the terminal is configured with two closed-loop power control loops, the higher layer signaling is used to configure a closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops.
In a seventh aspect, a computer-readable storage medium is provided, wherein:
the computer-readable storage medium stores computer instructions that, when executed on a computer, cause the computer to perform the method of the first aspect and/or the second aspect.
In the embodiment of the invention, when the terminal is configured to multi-beam transmission and the MAC header does not contain PUCCH-Spatial-relationship-Info, the PUCCH power control parameter is determined according to the beam management reference signal of the related downlink beam, wherein the related downlink beam is the beam for bearing the PDSCH. By the method, when the MAC header does not contain the PUCCH-Spatial-relationship-Info, the terminal can determine the PUCCH power control parameter. And, through the method, the terminal can determine the PUCCH power control parameter and the corresponding relation of a plurality of beams of the uplink and the downlink, and for a certain downlink beam, the terminal can send the uplink beam transmission which is matched with the downlink beam transmission most.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for controlling PUCCH power in multi-beam transmission according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a mapping relationship according to an embodiment of the invention;
fig. 3 is a flowchart illustrating another method for controlling PUCCH power in multi-beam transmission according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a terminal according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a base station according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document generally indicates that the preceding and following related objects are in an "or" relationship unless otherwise specified.
First, an application scenario of the embodiment of the present invention is described.
In 5G, PUCCH can be power controlled in PUCCH transmission period i on carrier f of serving cell c by the following formula (1):
Figure RE-GDA0001678074740000081
wherein, PO_PUCCH,f,c(qu) PUCCH target power configured for a high layer is obtained by combining a cell exclusive part and a UE exclusive part;
PLf,c(qd) For the path loss compensation parameter, qdA reference signal Resource sequence number used in the path loss measurement configured for the higher layer signaling, such as configured by Radio Resource Control (RRC);
ΔF_PUCCH(F) configuring power offset values of different PUCCH formats for a high layer, wherein F is an index of the PUCCH format;
ΔTF,f,c(i) is a power adjustment value related to the number of Uplink Control Information (UCI) bits, the UCI type, different coding gains, PUCCH format, coding scheme and different effective code rates;
gf,c(i, l) is a closed loop power adjustment parameter, and l represents a closed loop power process number.
The 5G system supports the beamforming transmission technology of the downlink and the uplink. When multiple beamforming transmission is adopted, corresponding downlink reference signals exist on a plurality of downlink beams respectively for path loss estimation and downlink beam management. The terminal needs to determine which reference signal is used for path loss measurement in the plurality of downlink reference signals to decide the power control parameter setting of PUCCH transmission; and determining the beam transmission of the uplink PUCCH corresponding to the downlink beam and the number corresponding to the closed-loop power adjustment parameter. For the PUCCH power control parameter, the PUCCH-Spatial-translation-Info indication information can be used to determine the PUCCH power control parameter, the PUCCH-Spatial-translation-Info indication field and the power control parameter (such as q)d、quAnd l) is configured by a high-level signaling PUCCHPowerControl-Mapping.
In fig. 5G, when multiple-beam (multi-beam) transmission is configured and the PUCCH-Spatial-correlation-Info is not transmitted in the MAC header, the terminal cannot determine the configuration of the PUCCH power control parameter in the multiple-beam transmission, cannot perform power control effectively, and cannot select an uplink beam matched with a corresponding downlink beam for transmission effectively.
Example one
The embodiment of the invention provides a control method of PUCCH power during multi-beam transmission, which can be applied to terminals, such as mobile phones, tablet computers, personal computers, notebook computers, wearable electronic equipment and other equipment with communication functions.
In the embodiment of the invention, for the transmission of a multi-beam (multi-beam) configuration, when PUCCH-Spatial-relationship-Info is not transmitted in a MAC header, a terminal implicitly determines relevant parameters for PUCCH power control.
Specifically, when the terminal is configured for multi-beam transmission and the MAC header does not include the PUCCH-Spatial-correlation-Info, the PUCCH power control parameter may be determined according to a beam management reference signal of a related downlink beam, which is a beam carrying the PDSCH.
The PUCCH power control parameter may be a parameter in the above formula (1), for example, q in the above formula (1)d、quAnd l one or more of the three parameters.
For example, the beam management reference signal may be a CSI-RS or SS block, etc.
In one possible implementation, the PUCCH power control parameter may be determined according to the procedure shown in fig. 1. The process shown in FIG. 1 comprises the following steps:
step 101: determining that the terminal is configured to multi-beam transmission and the MAC header does not contain PUCCH-Spatial-relationship-Info;
step 102: and determining PUCCH power control parameters according to the beam management reference signals of the related downlink beams, wherein the related downlink beams are the beams for bearing the PDSCH.
In one possible implementation, the PUCCH power control parameter may include a downlink reference signal resource sequence number q used in path loss measurementdDetermining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam may include the following steps: determine theResource sequence number of beam management reference signal of related downlink beam is q included in PUCCH power control parameterd。
That is, when the PUCCH-Spatial-correlation-Info is not transmitted in the MAC header, the terminal may use a beam management reference signal of the relevant downlink beam as a reference signal for path loss measurement.
There may be a plurality of beams carrying PDSCH.
When a Transmission Configuration Indication (TCI) is transmitted in Downlink Control Information (DCI), the relevant Downlink beam is indicated by the TCI; when the TCI is not transmitting the DCI, the relevant downlink beam is a downlink beam configured with the CORESET for scheduling the target PDSCH.
For example, the DCI may be a DCI in a previous downlink transmission period, or a DCI in a current downlink transmission period, and for example, the DCI may be a DCI in the relevant downlink beam, or may not be a DCI in the relevant downlink beam.
In one possible implementation, the PUCCH power control parameter may include a downlink reference signal resource sequence number q used in path loss measurementdWhen the terminal is configured with two closed-loop power control loops, determining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam may include the following steps: determining resource sequence number of beam management reference signal of the related downlink beam as q included in PUCCH power control parameterd。
That is, when the PUCCH-Spatial-correlation-Info is not transmitted in the MAC header and the terminal configures two closed-loop power control loops, the terminal may use the beam management reference signal of the associated downlink beam as the reference signal for the pathloss measurement.
There may be a plurality of beams carrying PDSCH.
When the TCI is transmitted in the DCI, the associated downlink beam is indicated by the TCI; when the TCI is not transmitting the DCI, the related downlink beam is a downlink beam for receiving downlink scheduling information and Transmit Power Control (TPC) information.
In one possible implementation, the PUCCH power control parameter may include P and PoAssociated sequence number qu，PoThe determining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam for a PUCCH target power parameter of a terminal configured for a higher layer may include the following steps: determining the matched P of the beam management reference signal of the related downlink beamoAssociated sequence number q included in PUCCH power control parametersu。
Wherein for each beam management reference signal used for downlink path loss measurement, there is a corresponding PoConfigured for PUCCH power control.
For example, assuming that the base station transmits 4 downlink beams { Db0, Db1, Db2, Db3} to the terminal, the terminal may transmit 3 PUCCH beams { Ub0, Ub1, Ub2} to the base station. Wherein, the reference signals of beam management corresponding to the 4 downlink beams are { q }d0,qd1,qd2,qd3} number q corresponding to uplink PUCCH beamuAre respectively { qu0,qu1,qu2}. When the method in the embodiment of the invention is executed, the following steps can be configured through high-layer signaling: beam managed reference signal qd0,qd1,qd2,qd3 with target power parameter { Po (q) for 3 PUCCH beamsu0),Po(qu1),Po(qu2) The mapping relationship may be, for example, the mapping relationship shown in fig. 2.
Based on the mapping relationship shown in fig. 2, when PDSCH transmission exists in Db0 and Db1, the terminal may determine that beams Db0 and Db1 are related downlink beams, and the terminal may determine that uplink PUCCH beams corresponding to related downlink beams Db0 and Db1 are { Ub0 and Ub2} respectively through the mapping relationship, and the corresponding target transmission power parameters are { Po (q 2) { Po (q) respectivelyu0),Po(qu2)}，
And, the terminal transmits the beam management reference signal q in the downlink beam Db0d0 as in power control of uplink beam Ub0Parameter signal for path loss measurement, beam management reference signal q in downlink beam Db1d1 as a parameter signal for path loss measurement in power control of the uplink beam Ub 2.
In a possible implementation, the PUCCH power control parameter may include a closed loop power control loop number l (i.e. a number l associated with the closed loop power control loop), and when the terminal is configured with two closed loop power control loops, the PUCCH power control parameter is determined according to a beam management reference signal of an associated downlink beam, which may include the following steps: and determining the number of the closed-loop power control loop associated with the beam management reference signal of the related downlink beam in the two closed-loop power control loops configured by the terminal, wherein the number is l included in the PUCCH power control parameter. Wherein, the closed loop power control loop associated with the beam management reference signal in the two closed loop power control loops may be configured by a higher layer signaling.
That is, for each beam management reference signal used for downlink path loss measurement, the beam management reference signal is associated with one of the two closed power control loops. Wherein the beam management reference signal is associated with one of the two closed power control loops and is configured by higher layer signaling.
For the sake of understanding, the foregoing PUCCH power control method in multi-beam transmission is described in supplementary detail below:
in the embodiment of the present invention, when the terminal is configured to transmit in multiple beams (multi-beam), and when the PUCCH-Spatial-correlation-Info is not transmitted in the MAC header, the terminal may implicitly determine the PUCCH power control parameter, for example, the PUCCH power control parameter is q in the above formula (1)d、 quAnd l one or more of the three parameters. Wherein:
(1) for determining PUCCH control parameters quThe following components:
since the reference signals for beam management all configure their associated PoThe terminal may determine P according to the beam management reference signal of the associated downlink beamo。
(2) In connection with determiningPUCCH control parameter qdThe following components:
the terminal uses a reference signal for beam management of a downlink beam related to PDSCH transmission as a reference signal for path loss measurement. In one possible embodiment, when the TCI is transmitted in the DCI, the relevant downlink beam is indicated by the TCI; when the TCI is not transmitting the DCI, the related downlink beam is a downlink beam configured with a core set for scheduling the target PDSCH.
(3) Regarding the part of determining the PUCCH control parameter/:
when the terminal is configured with two closed-loop power control loops, since the reference signals for beam management are both configured with their associated PoThe terminal may determine P according to the beam management reference signal of the associated downlink beamo。
Example two
Based on the same inventive concept, an embodiment of the present invention provides a method for controlling power of a physical uplink control channel PUCCH during multi-beam transmission, which may be applied to a base station, for example, the base station described in the first embodiment. Specifically, the method comprises:
and when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info, sending a high-level signaling, wherein the high-level signaling is used for configuring a mapping Relation between a beam management reference signal and content associated with the PUCCH power control parameter.
The high-level instruction may be the high-level instruction described in the first embodiment.
In one possible implementation, the method may be performed according to the flow shown in fig. 3. The process shown in fig. 3 includes the following steps:
step 301: determining that the terminal is configured to multi-beam transmission and the MAC header does not contain PUCCH-Spatial-relationship-Info;
step 302: and sending a high-level signaling, wherein the high-level signaling is used for configuring a mapping relation between the beam management reference signal and the content associated with the PUCCH power control parameter.
In one possible embodiment, the PUCCH power control parameter includes P and PoAssociated sequence number quOf the PoThe high layer signaling is used for configuring the beam management reference signal and the P in the terminal for PUCCH target power parameteroThe mapping relationship of (2).
In a possible implementation, the PUCCH power control parameter includes a closed-loop power control loop number/and, when the terminal is configured with two closed-loop power control loops, the higher layer signaling is used to configure the closed-loop power control loop associated with the beam management reference signal of the two closed-loop power control loops.
EXAMPLE III
Based on the same inventive concept, embodiments of the present invention provide a terminal, which includes at least a memory and a processor, for example, the terminal shown in fig. 4. The terminal shown in fig. 4 comprises a memory 401, a processor 402 and a transceiver 403, wherein the memory 401 and the transceiver 403 may be connected to the processor 402 through a bus interface, or may be connected to the processor 402 through a dedicated connection line, and the transceiver 403 may be used for receiving information transmitted by a device such as a base station, for example, receiving high-layer signaling.
Wherein, the memory 401 may be configured to store instructions, and the processor 402 may be configured to read the instructions in the memory 401 and execute the following processes:
when the terminal is configured to multi-beam transmission and the MAC header does not contain PUCCH-Spatial-relationship-Info, determining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, wherein the related downlink beam is a beam carrying a PDSCH.
In a possible implementation manner, the PUCCH power control parameter includes a downlink reference signal resource sequence number q used in path loss measurementdThe processor 402 performs determining a PUCCH power control parameter according to a beam management reference signal of an associated downlink beam, including:
determining the resource sequence number of the beam management reference signal as the qd；
When the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; when the TCI is not transmitting the DCI, the relevant downlink beam is a downlink beam configured with the CORESET for scheduling the target PDSCH.
In a possible implementation manner, the PUCCH power control parameter includes a downlink reference signal resource sequence number q used in path loss measurementdWhen the terminal is configured with two closed-loop power control loops, the processor 402 performs determining PUCCH power control parameters according to the beam management reference signal of the associated downlink beam, including:
determining the resource sequence number of the beam management reference signal as the qd；
When the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; when the TCI is not transmitting the DCI, the relevant downlink beam is a downlink beam for receiving the downlink scheduling information and the TPC information.
In one possible embodiment, the PUCCH power control parameter includes P and PoAssociated sequence number quOf the PoThe processor 402 executes determining a PUCCH power control parameter according to a beam management reference signal of an associated downlink beam, where the PUCCH target power parameter of the terminal configured for a higher layer includes:
determining the P matched by the beam management reference signaloThe associated serial number is qu。
In a possible implementation, the PUCCH power control parameter includes a closed loop power control loop number/and, when the terminal is configured with two closed loop power control loops, the processor 402 performs determining the PUCCH power control parameter according to a beam management reference signal of an associated downlink beam, including:
determining the number of the closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops as the l;
wherein the closed-loop power control loop of the two closed-loop power control loops associated with the beam management reference signal is configured by higher layer signaling.
In one possible embodiment, the beam management reference signal is a CSI-RS or SS block.
Example four
Based on the same inventive concept, embodiments of the present invention provide a base station, which includes at least a memory and a processor, and a transceiver, such as the base station shown in fig. 5. The base station shown in fig. 5 comprises a memory 501, a processor 502 and a transceiver 503, wherein the memory 501 and the transceiver 503 may be connected to the processor 502 via a bus interface, or may be connected to the processor 502 via a dedicated connection, and the transceiver 503 may be used for transmitting information, such as higher layer signaling. Wherein:
a memory 501 for storing instructions;
the processor 502 is used for reading the instructions in the memory 501 and executing the following processes:
when the terminal is configured as multi-beam transmission and the MAC header does not include PUCCH-Spatial-correlation-Info, higher layer signaling for configuring a mapping relationship between the beam management reference signal and the content associated with the PUCCH power control parameter is transmitted through the transceiver 503.
In one possible embodiment, the PUCCH power control parameter includes P and PoAssociated sequence number quOf the PoThe high layer signaling is used for configuring the beam management reference signal and the P in the terminal for PUCCH target power parameteroThe mapping relationship of (2).
In a possible implementation, the PUCCH power control parameter includes a closed-loop power control loop number/and, when the terminal is configured with two closed-loop power control loops, the higher layer signaling is used to configure the closed-loop power control loop associated with the beam management reference signal of the two closed-loop power control loops.
EXAMPLE five
Based on the same inventive concept, an embodiment of the present invention provides a terminal, where the terminal includes a PUCCH power control parameter determination module, configured to:
when the terminal is configured to multi-beam transmission and the media MAC header does not contain PUCCH-Spatial-relationship-Info, determining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, wherein the related downlink beam is a beam carrying a PDSCH.
In a possible implementation manner, the PUCCH power control parameter includes a downlink reference signal resource sequence number q used in path loss measurementdThe PUCCH power control parameter determining module is configured to:
determining the resource sequence number of the beam management reference signal as the qd；
When the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; when the TCI is not transmitting the DCI, the relevant downlink beam is a downlink beam configured with the CORESET for scheduling the target PDSCH.
In a possible implementation manner, the PUCCH power control parameter includes a downlink reference signal resource sequence number q used in path loss measurementdWhen the terminal is configured with two closed-loop power control loops, the PUCCH power control parameter determining module is configured to:
determining the resource sequence number of the beam management reference signal as the qd；
When the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; when the TCI is not transmitting the DCI, the relevant downlink beam is a downlink beam for receiving the downlink scheduling information and the TPC information.
In one possible embodiment, the PUCCH power control parameter includes P and PoAssociated sequence number quOf the PoThe PUCCH target power parameter of the terminal configured for the higher layer, the PUCCH power control parameter determining module is configured to:
determining the P matched by the beam management reference signaloThe associated serial number is qu。
In a possible embodiment, the PUCCH power control parameter includes a closed loop power control loop number/and, when the terminal is configured with two closed loop power control loops, the PUCCH power control parameter determining module is configured to:
determining the number of the closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops as the l;
wherein the closed-loop power control loop of the two closed-loop power control loops associated with the beam management reference signal is configured by higher layer signaling.
In one possible embodiment, the beam management reference signal is a CSI-RS or SS block.
EXAMPLE six
Based on the same inventive concept, an embodiment of the present invention provides a base station, where the base station includes a high-level signaling sending module, configured to:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info:
and sending a high-level signaling, wherein the high-level signaling is used for configuring a mapping relation between the beam management reference signal and the content associated with the PUCCH power control parameter.
In one possible implementation, the PUCCH power control parameter includes P and PoAssociated sequence number quOf the PoThe high layer signaling is used for configuring the beam management reference signal and the P in the terminal for PUCCH target power parameteroThe mapping relationship of (2).
In a possible implementation manner, the PUCCH power control parameter includes a closed-loop power control loop number l, and when the terminal is configured with two closed-loop power control loops, the higher layer signaling is used to configure the closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops.
EXAMPLE seven
Based on the same inventive concept, the embodiments of the present invention provide a computer-readable storage medium storing computer instructions, which, when executed on a computer, cause the computer to perform the method of the first embodiment and/or the second embodiment.
In particular implementations, the computer-readable storage medium includes: various storage media capable of storing program codes, such as a Universal Serial Bus flash drive (USB), a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, and an optical disk.
One or more technical schemes above have at least the following beneficial effects:
in the embodiment of the invention, when the terminal is configured to multi-beam transmission and the MAC header does not contain PUCCH-Spatial-relationship-Info, the PUCCH power control parameter is determined according to the beam management reference signal of the related downlink beam, wherein the related downlink beam is the beam for bearing the PDSCH. By the method, when the MAC header does not contain the PUCCH-Spatial-relationship-Info, the terminal can determine the PUCCH power control parameter. And, through the method, the terminal can determine the PUCCH power control parameter and the corresponding relation of a plurality of beams of the uplink and the downlink, and for a certain downlink beam, the terminal can send the uplink beam transmission which is matched with the downlink beam transmission most.
The above-described embodiments of the apparatus are merely illustrative, wherein units/modules illustrated as separate components may or may not be physically separate, and components shown as units/modules may or may not be physical units/modules, may be located in one place, or may be distributed over a plurality of network units/modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (21)

1. A method for controlling Physical Uplink Control Channel (PUCCH) power in multi-beam transmission, the method comprising:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info:
and determining PUCCH power control parameters according to the beam management reference signals of the related downlink beams, wherein the related downlink beams are beams for bearing a Physical Downlink Shared Channel (PDSCH).
2. The method of claim 1, wherein the PUCCH power control parameters comprise downlink reference signal resource sequence number q used in path loss measurementdDetermining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, including:
determining the resource sequence number of the beam management reference signal as the qd；
When the transmission configuration indicates that the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; and when the TCI is not used for transmitting the DCI, the related downlink beam is a downlink beam which is configured with a control resource set (CORESET) for scheduling the target PDSCH.
3. The method of claim 1, wherein the PUCCH power control parameters comprise downlink reference signal resource sequence number q used in path loss measurementdWhen the terminal is configured with two closed-loop power control loops, determining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, including:
determining the resource sequence number of the beam management reference signal as the qd；
When the transmission configuration indicates that the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; and when the TCI does not transmit the DCI, the related downlink beam is a downlink beam for receiving downlink scheduling information and TPC information.
4. The method of claim 1, wherein the PUCCH power control parameters comprise a P-and-PoAssociated sequence number quSaid P isoDetermining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam for a PUCCH target power parameter of the terminal configured for a high-level signaling, comprising:
determining the P to which the beam management reference signal matchesoAssociated sequence number of qu。
5. The method of claim 1, wherein the PUCCH power control parameter comprises a closed loop power control loop number/, and wherein determining the PUCCH power control parameter according to a beam management reference signal of an associated downlink beam when the terminal is configured with two closed loop power control loops comprises:
determining the number of the closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops as the/;
wherein a closed-loop power control loop of the two closed-loop power control loops associated with the beam management reference signal is configured by higher layer signaling.
6. The method of any one of claims 1-5, wherein the beam management reference signal is a channel state information reference signal (CSI-RS) or a synchronization signal block (SS block).
7. A method for controlling Physical Uplink Control Channel (PUCCH) power in multi-beam transmission, the method comprising:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info:
and sending a high-level signaling, wherein the high-level signaling is used for configuring a mapping relation between the beam management reference signal and the content associated with the PUCCH power control parameter.
8. The method of claim 7, wherein the PUCCH power control parameters comprise a P-and-PoAssociated sequence number quSaid P isoThe high layer signaling is used for configuring the beam management reference signal and the P in the terminal for PUCCH target power parameteroThe mapping relationship of (2).
9. The method of claim 7, wherein the PUCCH power control parameter comprises a closed power control loop number/, wherein when the terminal is configured with two closed power control loops, the higher layer signaling is used to configure the closed power control loop of the two closed power control loops associated with the beam management reference signal.
10. A terminal, characterized in that the terminal comprises:
a memory to store instructions;
a processor for reading the instructions in the memory, performing the following processes:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info, determining a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, wherein the related downlink beam is a beam carrying a Physical Downlink Shared Channel (PDSCH).
11. The terminal of claim 10, wherein the PUCCH power control parameter comprises a downlink reference signal resource sequence number q used in path loss measurementdThe processor determines a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, including:
determining the resource sequence number of the beam management reference signal as the qd；
When the transmission configuration indicates that the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; and when the TCI is not used for transmitting the DCI, the related downlink beam is a downlink beam which is configured with a control resource set (CORESET) for scheduling the target PDSCH.
12. The terminal of claim 10, wherein the PUCCH power control parameter comprises a downlink reference signal resource sequence number q used in path loss measurementdWhen the terminal is configured with two closed-loop power control loops, the processor performs determining a PUCCH power control parameter according to a beam management reference signal of a relevant downlink beam, including:
determining the resource sequence number of the beam management reference signal as the qd；
When the transmission configuration indicates that the TCI is transmitted in the DCI, the related downlink beam is indicated by the TCI; and when the TCI does not transmit the DCI, the related downlink beam is a downlink beam for receiving downlink scheduling information and TPC information.
13. The terminal of claim 10, wherein the PUCCH power control parameter comprises P and PoAssociated sequence number quSaid P isoThe processor determines a PUCCH power control parameter according to a beam management reference signal of a related downlink beam, where the PUCCH target power parameter of the terminal configured for a higher layer includes:
determining the P to which the beam management reference signal matchesoAssociated sequence number of qu。
14. The terminal of claim 10, wherein the PUCCH power control parameter comprises a closed loop power control loop number/, and wherein when the terminal is configured with two closed loop power control loops, the processor performs determining the PUCCH power control parameter based on a beam management reference signal of an associated downlink beam, comprising:
determining the number of the closed-loop power control loop associated with the beam management reference signal in the two closed-loop power control loops as the/;
wherein a closed-loop power control loop of the two closed-loop power control loops associated with the beam management reference signal is configured by higher layer signaling.
15. The terminal of any of claims 10-14, wherein the beam management reference signal is a channel state information reference signal, CSI-RS, or a synchronization signal block, SS block.
16. A base station, characterized in that the base station comprises:
a memory to store instructions;
a processor for reading the instructions in the memory, performing the following processes:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info, transmitting a high-level signaling through the transceiver, wherein the high-level signaling is used for configuring a mapping Relation between beam management reference signals and contents associated with PUCCH power control parameters.
17. The base station of claim 16, wherein the PUCCH power control parameter comprises P and PoAssociated sequence number quSaid P isoThe high layer signaling is used for configuring the beam management reference signal and the P in the terminal for PUCCH target power parameteroThe mapping relationship of (2).
18. The base station of claim 16, wherein the PUCCH power control parameter comprises a closed loop power control loop number/, wherein when the terminal is configured with two closed loop power control loops, the higher layer signaling is used to configure the closed loop power control loop of the two closed loop power control loops associated with the beam management reference signal.
19. A terminal, characterized in that the terminal comprises a PUCCH power control parameter determining module configured to:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info:
and determining PUCCH power control parameters according to the beam management reference signals of the related downlink beams, wherein the related downlink beams are beams for bearing a Physical Downlink Shared Channel (PDSCH).
20. A base station, characterized in that the base station comprises a higher layer signaling transmission module configured to:
when the terminal is configured to multi-beam transmission and the MAC header does not contain physical uplink control channel Spatial correlation indication information PUCCH-Spatial-relationship-Info:
and sending a high-level signaling, wherein the high-level signaling is used for configuring a mapping relation between the beam management reference signal and the content associated with the PUCCH power control parameter.
21. A computer-readable storage medium characterized by:
the computer readable storage medium stores computer instructions that, when executed on a computer, cause the computer to perform the method of any of claims 1-9.
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