CN110149685B - Grant free transmission power control method and equipment under multi-beam configuration - Google Patents

Grant free transmission power control method and equipment under multi-beam configuration Download PDF

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CN110149685B
CN110149685B CN201810150988.8A CN201810150988A CN110149685B CN 110149685 B CN110149685 B CN 110149685B CN 201810150988 A CN201810150988 A CN 201810150988A CN 110149685 B CN110149685 B CN 110149685B
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grant free
power control
service type
pusch
closed
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CN110149685A (en
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林祥利
郑方政
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Datang Mobile Communications Equipment Co Ltd
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Telecommunications Science and Technology Research Institute Co Ltd
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Priority to PCT/CN2019/073733 priority patent/WO2019157952A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H04B7/043—Power distribution using best eigenmode, e.g. beam forming or beam steering
    • 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • 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
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • 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
    • H04W52/06—TPC algorithms
    • H04W52/08—Closed loop power control

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

Abstract

The invention discloses a method and a device for controlling grant free sending power under multi-beam configuration, wherein the method comprises the following steps: if the scheduling free grant free transmission under the multi-beam configuration is of a type2 activated based on DCI (downlink control channel), and the DCI does not include the SRI (sounding reference signal resource indicator) indication information, or if the grant free transmission under the multi-beam configuration is of a type1 not activated based on DCI; the terminal UE determines the power control parameter of the physical uplink shared channel PUSCH according to the grant free service type transmitted by the grant free.

Description

Grant free transmission power control method and equipment under multi-beam configuration
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for controlling grant free transmit power in multi-beam configuration.
Background
With the development of mobile communication service demand, a New wireless communication system, i.e., a 5G (5Generation New RAT) system, is being researched by a plurality of organizations such as ITU (International telecommunications Union, abbreviated as International telecommunications Union).
The 5G system supports the downlink and Uplink beamforming transmission technologies, and when beamforming free transmission is adopted, power control parameters of a PUSCH (Physical Uplink Shared Channel) need to be configured in order to perform effective power control, however, a scheme how to configure the power control parameters is currently lacked.
Disclosure of Invention
The embodiment of the invention provides a method and equipment for controlling grant free sending power under multi-beam configuration, which are used for solving the problem that a scheme how to configure power control parameters is lacked at present.
In a first aspect, a method for controlling grant free transmit power in a multi-beam configuration is provided, including:
if the scheduling free transmission under the multi-beam configuration is of type2 activated based on DCI (Downlink control channel) and the DCI does not include the SRI (sounding reference Signal resource indicator) indication information, or
If grant free transmission under the multi-beam configuration is not based on the type1 activated by the DCI;
the terminal UE determines the power control parameter of the PUSCH according to the grant free service type transmitted by the grant free.
By adopting the method in the embodiment of the invention, when the scheduling free grant free transmission under the multi-beam configuration is of the type2 activated based on the DCI, and the DCI does not include the SRI indication information, or when the grant free transmission under the multi-beam configuration is of the type1 activated not based on the DCI, the terminal can determine the power control parameter of the PUSCH according to the grant free service type of the grant free transmission, so that the problem that the scheme how to configure the power control parameter is lacked at present is effectively solved, the configuration of the power control parameter is realized, and the UE can perform power control.
Optionally, the power control parameter includes: sequence number j, which is PUSCH target power parameter P0And the sequence number associated with the path loss compensation factor alpha, the PUSCH target power parameter P0And the path loss compensation factor alpha is configured by a higher layer;
the terminal UE determines the power control parameter of the PUSCH according to the grant free service type transmitted by the grant free, and the method specifically includes:
determining the grant free service type to which the grant free transmission of the UE in the current transmission period belongs as a first service type;
according to P0And determining a target P corresponding to the first service type according to the first mapping relation between alpha and grant free service types0And a target α, wherein the first mapping relationship is preset, or the first mapping relationship is configured through a high-level signaling;
according to the target P0And the sequence number of the target alpha, and determining the sequence number j.
The above alternative describes how to configure the sequence number j in the power control parameter.
Optionally, the grant free service types include: URLLC type and mMTC type, different grant free service types correspond to different grant free resources.
Optionally, the power control parameter includes: the closed loop power schedule is numbered l,
the terminal UE determines the power control parameter of the PUSCH according to the grant free service type transmitted by the grant free, and the method specifically includes:
determining the grant free service type to which the grant free transmission of the UE in the current transmission period belongs as a second service type;
determining a closed loop power control parameter of the second service type according to the received Transmit Power Control (TPC) command;
taking the closed-loop power control parameter of the second service type as a PUSCH closed-loop power process number l;
when the terminal is configured with two closed-loop power control loops, one of the two closed-loop power control loops and a TPC command related to the closed-loop power control loop are configured for each grant free service type.
The above alternative describes how to configure the closed loop power schedule number/in the power control parameters.
Optionally, the method further includes:
reference signal resource sequence number q used in path loss measurement of the grant free transmissiondConfigured by RRC.
Optionally, the method further includes:
and if grant free transmission under multi-beam configuration is of a type2 activated based on DCI, and the DCI comprises SRI indication information, the UE determines the Power Control parameter of the PUSCH according to the SRI indication information and a high-level configuration parameter SRI-PUSCH Power Control-Mapping.
In a second aspect, an apparatus for grant free transmit power control in a multi-beam configuration is provided, including:
a determining unit, configured to determine whether grant free transmission under multi-beam configuration is of a type2 activated based on DCI and does not include SRI indication information in the DCI, or determine whether grant free transmission under multi-beam configuration is of a type1 not activated based on DCI; the terminal UE determines the power control parameter of the PUSCH according to the grant free service type transmitted by the grant free.
Optionally, the power control parameter includes: sequence number j, which is PUSCH target power parameter P0And the sequence number associated with the path loss compensation factor alpha, the PUSCH target power parameter P0And the path loss compensation factor alpha is configured by a higher layer;
the determining unit is further configured to:
determining the grant free service type to which the grant free transmission of the UE in the current transmission period belongs as a first service type;
according to P0And determining a target P corresponding to the first service type according to the first mapping relation between alpha and grant free service types0And a target α, wherein the first mapping relationship is preset, or the first mapping relationship is configured through a high-level signaling;
according to the target P0And the sequence number of the target alpha, and determining the sequence number j.
Optionally, the grant free service types include: URLLC type and mMTC type, different grant free service types correspond to different grant free resources.
Optionally, the power control parameter includes: the closed loop power schedule is numbered l,
the determining unit is further configured to:
determining the grant free service type to which the grant free transmission of the UE in the current transmission period belongs as a second service type;
determining a closed-loop power control parameter of the second service type according to the received TPC command;
taking the closed-loop power control parameter of the second service type as a PUSCH closed-loop power process number l;
when the terminal is configured with two closed-loop power control loops, one of the two closed-loop power control loops and a TPC command related to the closed-loop power control loop are configured for each grant free service type.
The above alternative describes how to configure the closed loop power schedule number/in the power control parameters.
Optionally, the determining unit is further configured to:
reference signal resource sequence number q used in path loss measurement of the grant free transmissiondConfigured by RRC.
Optionally, the determining unit is further configured to:
and if grant free transmission under multi-beam configuration is of a type2 activated based on DCI, and the DCI comprises SRI indication information, the UE determines the Power Control parameter of the PUSCH according to the SRI indication information and a high-level configuration parameter SRI-PUSCH Power Control-Mapping.
In a third aspect, there is also provided an apparatus, comprising:
at least one processor, and
a memory coupled to the at least one processor;
wherein the memory stores instructions executable by the at least one processor, and the at least one processor executes the instructions stored in the memory to perform the grant free transmit power control method in the multi-beam configuration as described above.
In a fourth aspect, an embodiment of the present invention provides a readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the grant free transmission power control method in the multi-beam configuration as described above.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
in the method for controlling grant free transmission power under multi-beam configuration provided in the embodiment of the present invention, when grant free transmission under multi-beam configuration is of type2 activated based on DCI, and DCI does not include indication information indicating an SRI for a sounding reference signal resource, or when grant free transmission under multi-beam configuration is of type1 not activated based on DCI, a terminal may determine a power control parameter of a PUSCH according to a grant free service type transmitted by grant free, so that a problem that how to configure a power control parameter is lacking at present is effectively solved, configuration of the power control parameter is implemented, and then a UE is enabled to perform power control.
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 will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a flowchart of a grant free transmit power control method under multi-beam configuration according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an apparatus 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 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 technical solutions of the present invention. All other embodiments obtained by a person skilled in the art without any inventive step based on the embodiments described in the present application are within the scope of the protection of the present invention.
With the development of mobile communication service demand, organizations such as ITU have started to research a New wireless communication system, i.e., a 5G (5Generation New RAT) system.
The 5G system supports the downlink and Uplink beamforming transmission technologies, and when beamforming free transmission is adopted, power control parameters of a PUSCH (Physical Uplink Shared Channel) need to be configured in order to perform effective power control, however, a scheme how to configure the power control parameters is currently lacked.
In the 5G system, the PUSCH powers control the PUSCH in slot i on carrier f of serving cell c by the following formula:
Figure RE-GDA0001709795780000061
wherein, P0_PUSCH,f,c(j) PUSCH target power configured for higher layer on carrier f, obtained by combining cell-specific part and UE-specific part, PLf,c(qd) For the path loss compensation parameter, qdA reference signal resource sequence number used in path loss measurement configured for RRC; a isf,c(j) A path loss compensation factor; deltaTF,f,c(i) Is a power offset value; f. off,c(i, j) is a closed loop power adjustment parameter, and l represents a closed loop power process number.
When multiple beamforming transmission is adopted, corresponding reference signals exist on a plurality of downlink beam beams, and a terminal needs to determine which reference signal is used for path loss measurement to determine the power control parameter setting of PUSCH transmission in the plurality of downlink reference signals; and determining the uplink beam transmission corresponding to the downlink beam and the number corresponding to the closed-loop power adjustment parameter.
To this end, an embodiment of the present invention provides a method for controlling grant free transmit power in a multi-beam configuration, referring to fig. 1, where the method includes:
step S101: if the scheduling free grant free transmission under the multi-beam configuration is of a type2 activated based on DCI (downlink control channel), and the DCI does not include the SRI (sounding reference signal resource indicator) indication information, or if the grant free transmission under the multi-beam configuration is of a type1 not activated based on DCI;
step S102: the terminal UE determines the power control parameter of the physical uplink shared channel PUSCH according to the grant free service type transmitted by the grant free.
Example one
In the embodiment of the present invention, for the case that grant free transmission under beam configuration is of a type2 activated based on DCI, and the DCI does not include SRI (Sounding reference signal Resource Indication) Indication information, the terminal UE determines a power control parameter of the PUSCH according to the grant free service type of the grant free transmission, so as to perform effective power control.
Preferably, the power control parameters include: sequence number j, wherein the sequence number j is a PUSCH target power parameter P0And the sequence number associated with the path loss compensation factor alpha.
In a specific practical process, a high layer can configure a plurality of PUSCH target power parameters P0And a plurality of path loss compensation factors alpha, when the terminal uses grant free transmission under the beam configuration in the current transmission period, the grant free transmission is a type2 type activated based on the DCI, and the DCI does not include the SRI indication information, the terminal needs to determine the grant free service type to which the grant free transmission belongs.
In general, grant free service types include: URLLC type, mMTC type, etc., and different grant free service types correspond to different grant free resources.
In the embodiment of the present invention, P may be set in advance0And a mapping relation of α to grant free service type, of course, P0And the mapping relation between alpha and grant free service types can also be configured through high-level signaling, and P is preset in the mapping relation0And the mapping relationship between α and grant free service type is an example. After determining the grant free service type to which the grant free transmission belongs, the method can be implemented according to the determined service type and the preset P0And the mapping relation between the alpha and the grant free service type, and finding the target P mapped by the determined service type0And a target alpha, the target P0And the sequence number of the target alpha is the sequence number j to be solved by the power control parameter.
For example, when the terminal determines that the grant free service type transmitted by the grant free is URLLC type, according to the preset P0And the mapping relation between alpha and grant free service type, and finding the target P mapped with the URLLC type0And a target alpha, the target P0And the sequence number of the target alpha is the power control parameterThe sequence number j to be solved.
Preferably, the power control parameters include: the closed loop power process number l.
In the embodiment of the present invention, the terminal is configured with two closed-loop power control loops, one of the two closed-loop power control loops is configured for each grant free, and a TPC command related to the one closed-loop power control loop is configured in two TPC commands, where the TPC command is indicated by a group common DCI.
When the determined power control parameter includes a closed-loop power process number l, the terminal also needs to determine a grant free service type to which grant free transmission of the current transmission period of the UE belongs, and then the terminal determines a closed-loop power control loop related to the TPC command according to the received TPC command, where the closed-loop power control loop is a closed-loop power control parameter of a second service type; and taking the closed-loop power control parameter of the second service type as a PUSCH closed-loop power process number l.
Preferably, the power control parameter further includes: reference signal resource sequence number qd。
Wherein, the reference signal resource sequence number q used in the path loss measurement of the grant free transmissiondConfigured by RRC.
Example two
In the embodiment of the present invention, when grant free transmission under a beam configuration is a type1 activated based on DCI, the terminal UE may also determine a power control parameter of the PUSCH according to a grant free service type of the grant free transmission, so as to perform effective power control.
Preferably, the power control parameters include: sequence number j, wherein the sequence number j is a PUSCH target power parameter P0And the sequence number associated with the path loss compensation factor alpha.
In a specific practical process, a high layer can configure a plurality of PUSCH target power parameters P0And a plurality of path loss compensation factors alpha, wherein the terminal uses grant free transmission under the beam configuration in the current transmission period, and the grant free transmission is activated based on DCI type2And when the DCI does not include the SRI indication information, the terminal needs to determine the grant free service type to which the grant free transmission belongs.
In general, grant free service types include: URLLC type, mMTC type, etc., and different grant free service types correspond to different grant free resources.
In the embodiment of the present invention, P may be set in advance0And a mapping relation of α to grant free service type, of course, P0And the mapping relation between alpha and grant free service types can also be configured through high-level signaling, and P is preset in the mapping relation0And the mapping relationship between α and grant free service type is an example. After determining the grant free service type to which the grant free transmission belongs, the method can be implemented according to the determined service type and the preset P0And the mapping relation between the alpha and the grant free service type, and finding the target P mapped by the determined service type0And a target alpha, the target P0And the sequence number of the target alpha is the sequence number j to be solved by the power control parameter.
For example, when the terminal determines that the grant free service type transmitted by the grant free is the mtc type, the mtc type is determined according to the preset P0And the mapping relation between the alpha and the grant free service type, and finding the target P mapped with the mMTC type0And a target alpha, the target P0And the sequence number of the target alpha is the sequence number j to be solved by the power control parameter.
Preferably, the power control parameters include: the closed loop power process number l.
In the embodiment of the present invention, the terminal is configured with two closed-loop power control loops, one of the two closed-loop power control loops is configured for each grant free, and a TPC command related to the one closed-loop power control loop is configured in two TPC commands, where the TPC command is indicated by a group common DCI.
When the determined power control parameter includes a closed-loop power process number l, the terminal also needs to determine a grant free service type to which grant free transmission of the current transmission period of the UE belongs, and then the terminal determines a closed-loop power control loop related to the TPC command according to the received TPC command, where the closed-loop power control loop is a closed-loop power control parameter of a second service type; and taking the closed-loop power control parameter of the second service type as a PUSCH closed-loop power process number l.
Preferably, the power control parameter further includes: reference signal resource sequence number qd。
Wherein, the reference signal resource sequence number q used in the path loss measurement of the grant free transmissiondConfigured by RRC.
EXAMPLE III
And if grant free transmission under multi-beam configuration is of a type2 activated based on DCI, and the DCI comprises SRI indication information, the UE determines the Power Control parameter of the PUSCH according to the SRI indication information and a high-level configuration parameter SRI-PUSCH Power Control-Mapping.
In the embodiment of the present invention, the Mapping relationship between the SRI indication field and the Power Control parameter (j, k, l) is configured by high-level signaling SRI-PUSCH Power Control-Mapping, where k is also the resource sequence number q of the downlink reference signal used in the path loss measurementdIf grant free transmission under multi-beam configuration is of type2 activated based on DCI, and the DCI includes SRI indication information, that is, the SRI indication information is dynamically indicated in the DCI, the terminal may determine a downlink reference signal for path loss measurement through the SRI indication information so as to set a power control parameter, and indicate which uplink beam is used for transmission.
Therefore, in the embodiment of the present invention, by using the above method, when grant free transmission under multi-beam configuration is of a type2 activated based on DCI, and the DCI does not include SRI indication information, or when grant free transmission under multi-beam configuration is of a type1 not activated based on DCI, the terminal may determine the power control parameter of the PUSCH according to the grant free service type transmitted by the grant free, so that the problem that how to configure the power control parameter is lacking at present is effectively solved, the configuration of the power control parameter is implemented, and further, the UE can perform power control.
The grant free transmission under the multi-beam configuration is of a type2 activated based on DCI, and the DCI comprises SRI indication information, so that the UE determines the Power Control parameter of the PUSCH according to the SRI indication information and a high-level configuration parameter SRI-PUSCH Power Control-Mapping, the scheme of Power Control parameter configuration is perfected, the configuration of the Power Control parameter is realized, and the UE can perform Power Control.
Based on the same inventive concept, an apparatus for controlling grant free transmit power in multi-beam configuration is provided in the embodiments of the present invention, and for specific implementation of the method for controlling grant free transmit power in multi-beam configuration, reference may be made to the description in the foregoing method embodiments, and repeated details are not repeated, and the apparatus includes:
a determining unit, configured to determine whether grant free transmission under multi-beam configuration is of a type2 activated based on DCI and does not include SRI indication information in the DCI, or determine whether grant free transmission under multi-beam configuration is of a type1 not activated based on DCI; the terminal UE determines the power control parameter of the PUSCH according to the grant free service type transmitted by the grant free.
Optionally, the power control parameter includes: sequence number j, which is PUSCH target power parameter P0And the sequence number associated with the path loss compensation factor alpha, the PUSCH target power parameter P0And the path loss compensation factor alpha is configured by a higher layer;
the determining unit is further configured to:
determining the grant free service type to which the grant free transmission of the UE in the current transmission period belongs as a first service type;
according to P0And determining a target P corresponding to the first service type according to the first mapping relation between alpha and grant free service types0And a target α, wherein the first mapping relationship is preset, or the first mapping relationship is configured through a high-level signaling;
according to the target P0And the sequence number of the target alpha, and determining the sequence number j.
Optionally, the grant free service types include: URLLC type and mMTC type, different grant free service types correspond to different grant free resources.
Optionally, the power control parameter includes: the closed loop power schedule is numbered l,
the determining unit is further configured to:
determining the grant free service type to which the grant free transmission of the UE in the current transmission period belongs as a second service type;
determining a closed-loop power control parameter of the second service type according to the received TPC command;
taking the closed-loop power control parameter of the second service type as a PUSCH closed-loop power process number l;
when the terminal is configured with two closed-loop power control loops, one of the two closed-loop power control loops and a TPC command related to the closed-loop power control loop are configured for each grant free service type.
The above alternative describes how to configure the closed loop power schedule number/in the power control parameters.
Optionally, the determining unit is further configured to:
reference signal resource sequence number q used in path loss measurement of the grant free transmissiondConfigured by RRC.
Optionally, the determining unit is further configured to:
and if grant free transmission under multi-beam configuration is of a type2 activated based on DCI, and the DCI comprises SRI indication information, the UE determines the Power Control parameter of the PUSCH according to the SRI indication information and a high-level configuration parameter SRI-PUSCH Power Control-Mapping.
Based on the same inventive concept, an apparatus provided in the embodiments of the present invention, please refer to fig. 2, includes:
at least one processor 30, and
a memory 31 connected to the at least one processor 30;
wherein the memory stores instructions executable by the at least one processor, and the at least one processor executes the instructions stored in the memory to perform the grant free transmit power control method in the multi-beam configuration as described above.
Based on the same inventive concept, an embodiment of the present invention provides a readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the grant free transmission power control method in the multi-beam configuration as described above.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims (10)

1. A grant free transmission power control method under multi-beam configuration, comprising:
if the scheduling free transmission under the multi-beam configuration is of type2 activated based on DCI (Downlink control channel) and the DCI does not include the SRI (sounding reference Signal resource indicator) indication information, or
If grant free transmission under the multi-beam configuration is not based on the type1 activated by the DCI;
the terminal UE determines the power control parameter value of the PUSCH according to the grant free service type transmitted by the grant free and the type of the power control parameter of the PUSCH.
2. The method of claim 1, wherein the power control parameter comprises: sequence number j, which is PUSCH target power parameter P0And the sequence number associated with the path loss compensation factor alpha, the PUSCH target power parameter P0And the path loss compensation factor α is configured by a higher layer;
the terminal UE determines the power control parameter of the PUSCH according to the grant free service type transmitted by the grant free, and the method specifically includes:
determining the grant free service type to which the grant free transmission of the UE in the current transmission period belongs as a first service type;
according to P0And determining a target P corresponding to the first service type according to the first mapping relation between alpha and grant free service types0And a target α, wherein the first mapping relationship is preset, or the first mapping relationship is configured through a high-level signaling;
according to the target P0And the sequence number of the target alpha, and determining the sequence number j.
3. The method of claim 2, wherein the grant free service type comprises: URLLC type and mMTC type, different grant free service types correspond to different grant free resources.
4. The method of claim 1, wherein the power control parameter comprises: the closed loop power schedule is numbered l,
the terminal UE determines the power control parameter of the PUSCH according to the grant free service type transmitted by the grant free, and the method specifically includes:
determining the grant free service type to which the grant free transmission of the UE in the current transmission period belongs as a second service type;
determining a closed loop power control parameter of the second service type according to the received Transmit Power Control (TPC) command;
taking the closed-loop power control parameter of the second service type as a PUSCH closed-loop power process number l;
when the terminal is configured with two closed-loop power control loops, one of the two closed-loop power control loops and a TPC command related to the closed-loop power control loop are configured for each grant free service type.
5. The method of claim 1, further comprising:
reference signal resource sequence number q used in path loss measurement of the grant free transmissiondConfigured by RRC.
6. The method of any one of claims 1-5, further comprising:
and if grant free transmission under multi-beam configuration is of a type2 activated based on DCI, and the DCI comprises SRI indication information, the UE determines the Power Control parameter of the PUSCH according to the SRI indication information and a high-level configuration parameter SRI-PUSCH Power Control-Mapping.
7. An apparatus for grant free transmit power control in a multi-beam configuration, comprising:
a determining unit, configured to determine whether grant free transmission under multi-beam configuration is of a type2 activated based on DCI and does not include SRI indication information in the DCI, or determine whether grant free transmission under multi-beam configuration is of a type1 not activated based on DCI; the terminal UE determines the power control parameter value of the PUSCH according to the grant free service type transmitted by the grant free and the type of the power control parameter of the PUSCH.
8. The apparatus of claim 7, wherein the power control parameter comprises: sequence number j, which is PUSCH target power parameter P0And the sequence number associated with the path loss compensation factor alpha, the PUSCH target power parameter P0And the path loss compensation factor α is configured by a higher layer;
the determining unit is further configured to:
determining the grant free service type to which the grant free transmission of the UE in the current transmission period belongs as a first service type;
according to P0And determining a target P corresponding to the first service type according to the first mapping relation between alpha and grant free service types0And a target α, wherein the first mapping relationship is preset, or the first mapping relationship is performed by a higher layer signalingConfiguring;
according to the target P0And the sequence number of the target alpha, determining the sequence number j; or
The power control parameters include: the closed loop power schedule is numbered l,
the determining unit is further configured to:
determining the grant free service type to which the grant free transmission of the UE in the current transmission period belongs as a second service type;
determining a closed-loop power control parameter of the second service type according to the received TPC command;
taking the closed-loop power control parameter of the second service type as a PUSCH closed-loop power process number l;
when the terminal is configured with two closed-loop power control loops, one of the two closed-loop power control loops and a TPC command related to the closed-loop power control loop are configured for each grant free service type.
9. An apparatus for grant free transmit power control in a multi-beam configuration, comprising:
at least one processor, and
a memory coupled to the at least one processor;
wherein the memory stores instructions executable by the at least one processor, the at least one processor performing the method of any one of claims 1-6 by executing the instructions stored by the memory.
10. A readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1-6.
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