CN111867029B - Uplink open-loop power control method and device, and communication equipment - Google Patents

Abstract

The invention provides an uplink open-loop power control method and device, and communication equipment, belonging to the technical field of wireless communication. The uplink open-loop power control method is applied to the network side equipment, including: receiving the sounding reference signal SRS reported by the user terminal, and determining the target reference signal used for downlink path loss estimation according to the information of the SRS reported by the user terminal; using the downlink control information DCI to The user terminal indicates the target reference signal. Through the technical scheme of the present invention, the accuracy of uplink open-loop power control can be improved, while the overhead caused by frequent RRC reconfiguration can be reduced, and the uplink throughput of the user terminal can be effectively improved.

Description

Uplink open-loop power control method and device, and communication equipment

technical field

The present invention relates to the technical field of wireless communication, in particular to an uplink open-loop power control method and device, and communication equipment.

Background technique

The uplink open-loop power control process based on SSB (Sychronization Signal Block, synchronization signal block) and CSI-RS (Channel State Information-reference signals, Channel State Information Reference Signals) reference signals introduces beam-level downlink path loss parameters. The protocol defines two Scenarios for obtaining beam-level information:

Based on broadcast message acquisition: the user terminal obtains the corresponding SSBindex (index) by receiving the broadcast message sent by the base station side, and measures the downlink path loss at the beam level according to the SSB index RSRP (Reference Signal Receiving Power, reference signal received power); because the base station side It is impossible to accurately know the behavior of the user terminal to obtain the RSRP, which may cause a beam mismatch between the base station side and the user terminal side, reducing the accuracy of uplink open-loop power control.

Based on RRC message configuration: the user terminal receives the RRC (Radio Resource Control, radio resource control) message sent by the base station side, and measures the beam-level downlink path loss based on the RSRP of the SSB index or CSI-RS resource ID; since the user terminal is moving The beam needs to be replaced in the middle of the network, and the overhead of frequent RRC signaling reconfiguration is relatively large, which reduces the practicability of the existing network.

Therefore, the schemes defined by the protocol all have certain disadvantages, resulting in a decrease in the accuracy of uplink open-loop power control or an increase in overhead.

Contents of the invention

The technical problem to be solved by the present invention is to provide an uplink open-loop power control method and device, which can improve the accuracy of uplink open-loop power control, reduce the overhead caused by frequent RRC reconfiguration, and effectively improve the uplink throughput of user terminals.

In order to solve the above technical problems, embodiments of the present invention provide technical solutions as follows:

Embodiments of the present invention provide an uplink open-loop power control method, which is applied to network side equipment, including:

receiving the Sounding Reference Signal SRS reported by the user terminal, and determining the target reference signal used for downlink path loss estimation according to the information of the SRS reported by the user terminal;

Indicating the target reference signal to the user terminal through downlink control information DCI.

Optionally, the target reference signal includes a reference signal block SSB and a channel state information reference signal CSI-RS.

Optionally, also include:

Configuring N reference signal indexes for the user terminal through a radio resource control RRC message, each reference signal index corresponds to an uplink channel path loss reference index, and N is a positive integer;

Configuring the reported quantity L of Layer 1 Reference Signal Received Power L1-RSRP for the user terminal through an RRC message, where L is a positive integer;

Determine L reference signal indices according to the L1-RSRP reported by the user terminal.

Optionally, receiving the Sounding Reference Signal SRS reported by the user terminal, determining the target reference signal used for downlink path loss estimation according to the SRS information reported by the user terminal; indicating the target reference signal to the user terminal through downlink control information DCI Signals include:

receiving the RSRP of the SRS reported by the user terminal, and when the ratio of the RSRP of a beam to other beams is greater than a preset threshold, using the beam as a target beam;

determining an uplink channel path loss reference index corresponding to the target beam, and determining indication information in the DCI used to indicate the target reference signal according to the L and the uplink channel path loss reference index;

and sending the DCI carrying the indication information to the user terminal, so that the user terminal determines the target reference signal according to the indication information.

Optionally, receiving the Sounding Reference Signal SRS reported by the user terminal, determining the target reference signal used for downlink path loss estimation according to the SRS information reported by the user terminal; indicating the target reference signal to the user terminal through downlink control information DCI Signals include:

receiving the RSRP of the SRS reported by the user terminal, and using the beam as a candidate beam when the ratio of the RSRPs of a beam to other beams is greater than a preset threshold;

Activating multiple candidate beams through MAC CE signaling;

receiving L L1-RSRPs reported by the user terminal, and selecting a target reference signal corresponding to the largest L1-RSRP;

determining indication information used to indicate the target reference signal in the DCI according to the reference signal index corresponding to the L and the target reference signal;

and sending the DCI carrying the indication information to the user terminal, so that the user terminal determines the target reference signal according to the indication information.

The embodiment of the present invention also provides an uplink open-loop power control method applied to a user terminal, including:

receiving downlink control information DCI sent by the network side device, where the downlink control information DCI includes indication information of a target reference signal;

The downlink path loss is estimated according to the reference signal received power RSRP of the target reference signal.

Optionally, also include:

Sending the Sounding Reference Signal SRS to the network side device, so that the network side device determines the target reference signal used for downlink path loss estimation according to the SRS information reported by the user terminal.

Optionally, the target reference signal includes a reference signal block SSB and a channel state information reference signal CSI-RS.

Optionally, also include:

Receive a radio resource control RRC message sent by the network side device, the RRC message configures N reference signal indexes for the user terminal, each reference signal index corresponds to an uplink channel path loss reference index, and N is a positive integer;

Receive an RRC message sent by the network side device, where the RRC message is the user terminal configuration layer-reference signal received power L1-RSRP reporting quantity L, where L is a positive integer.

The embodiment of the present invention also provides an uplink open-loop power control device, which is applied to network side equipment, including a processor and a transceiver,

The transceiver is used to receive the Sounding Reference Signal SRS reported by the user terminal;

The processor is configured to determine a target reference signal used for downlink path loss estimation according to the SRS information reported by the user terminal;

The transceiver is further configured to indicate the target reference signal to the user terminal through downlink control information DCI.

Optionally, the target reference signal includes a reference signal block SSB and a channel state information reference signal CSI-RS.

Optionally, the transceiver is further configured to configure N reference signal indexes for the user terminal through a radio resource control RRC message, each reference signal index corresponds to an uplink channel path loss reference index, and N is a positive integer; through RRC The message is the user terminal configuration layer-reference signal received power L1-RSRP reporting quantity L, where L is a positive integer;

The processor is further configured to determine L reference signal indices according to the L1-RSRP reported by the user terminal.

Optionally, the transceiver is further configured to receive the RSRP of the SRS reported by the user terminal, and when the ratio of the RSRP of a beam to other beams is greater than a preset threshold, the beam is used as a target beam;

The processor is further configured to determine an uplink channel path loss reference index corresponding to the target beam, and determine an indication in the DCI used to indicate the target reference signal according to the L and the uplink channel path loss reference index information;

The transceiver is further configured to send the DCI carrying the indication information to the user terminal, so that the user terminal determines the target reference signal according to the indication information.

Optionally, the transceiver is also used to receive the RSRP of the SRS reported by the user terminal, and when the ratio of the RSRP of a beam to other beams is greater than a preset threshold, the beam is used as a candidate beam; through MAC CE signaling activating multiple candidate beams; receiving L L1-RSRPs reported by the user terminal, and selecting a target reference signal corresponding to the largest L1-RSRP;

The processor is further configured to determine indication information used to indicate the target reference signal in the DCI according to the reference signal index corresponding to the L and the target reference signal;

The transceiver is further configured to send the DCI carrying the indication information to the user terminal, so that the user terminal determines the target reference signal according to the indication information.

The embodiment of the present invention also provides an uplink open-loop power control device, which is applied to a user terminal, including a processor and a transceiver,

The transceiver is configured to receive downlink control information DCI sent by a network side device, and the downlink control information DCI includes indication information of a target reference signal;

The processor is configured to perform downlink path loss estimation according to the reference signal received power RSRP of the target reference signal.

Optionally, the transceiver is further configured to send a Sounding Reference Signal SRS to the network side device, so that the network side device determines a target reference signal for downlink path loss estimation according to the SRS information reported by the user terminal.

Optionally, the target reference signal includes a reference signal block SSB and a channel state information reference signal CSI-RS.

Optionally, the transceiver is further configured to receive a radio resource control RRC message sent by the network side device, the RRC message configures N reference signal indexes for the user terminal, and each reference signal index corresponds to an uplink channel Path loss reference index, N is a positive integer; receiving an RRC message sent by the network side device, the RRC message is the user terminal configuration layer-reference signal received power L1-RSRP reporting quantity L, where L is a positive integer.

An embodiment of the present invention also provides a communication device, including: a memory, a processor, and a computer program stored on the memory and operable on the processor. When the computer program is executed by the processor, the above-mentioned Steps in the uplink open-loop power control method.

An embodiment of the present invention also provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the above-mentioned uplink open-loop power control method is implemented. step.

Embodiments of the present invention have the following beneficial effects:

In the above solution, the target reference signal used for downlink path loss estimation is determined based on the SRS information reported by the user terminal, and the target reference signal is indicated to the user terminal through downlink control information. Through the technical solution of the present invention, the accuracy of uplink power estimation can be improved, the problem of beam mismatch between the network side equipment and the user terminal can be solved, and the overhead caused by frequent RRC reconfiguration can be reduced, thereby effectively improving the uplink throughput of the user terminal .

Description of drawings

1 is a schematic flowchart of an uplink open-loop power control method applied to a network side device according to an embodiment of the present invention;

FIG. 2 is a schematic flowchart of an uplink open-loop power control method applied to a user terminal according to an embodiment of the present invention;

FIG. 3 is a structural block diagram of an uplink open-loop power control device applied to network side equipment according to an embodiment of the present invention;

Fig. 4 is a structural block diagram of an uplink open-loop power control device applied to a user terminal according to an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

Embodiments of the present invention provide an uplink open-loop power control method and device, which can improve the accuracy of uplink open-loop power control, reduce the overhead caused by frequent RRC reconfiguration, and effectively improve the uplink throughput of user terminals.

An embodiment of the present invention provides an uplink open-loop power control method, which is applied to a network side device, as shown in FIG. 1 , including:

Step 101: Receive the Sounding Reference Signal SRS reported by the user terminal, and determine the target reference signal used for downlink path loss estimation according to the information of the SRS reported by the user terminal;

Step 102: Indicate the target reference signal to the user terminal through downlink control information DCI.

In this embodiment, the target reference signal used for downlink path loss estimation is determined based on the SRS information reported by the user terminal, and the target reference signal is indicated to the user terminal through downlink control information. Through the technical solution of the present invention, the accuracy of uplink power estimation can be improved, the problem of beam mismatch between the network side equipment and the user terminal can be solved, and the overhead caused by frequent RRC reconfiguration can be reduced, thereby effectively improving the uplink throughput of the user terminal .

Optionally, the target reference signal includes a reference signal block SSB and a channel state information reference signal CSI-RS.

Optionally, the uplink open-loop power control method further includes:

Configuring N reference signal indexes for the user terminal through a radio resource control RRC message, each reference signal index corresponds to an uplink channel path loss reference index, and N is a positive integer;

Configuring the reported quantity L of Layer 1 Reference Signal Received Power L1-RSRP for the user terminal through an RRC message, where L is a positive integer;

Determine L reference signal indices according to the L1-RSRP reported by the user terminal.

In a specific embodiment, the receiving the Sounding Reference Signal SRS reported by the user terminal determines the target reference signal used for downlink path loss estimation according to the SRS information reported by the user terminal; indicates the user terminal through the downlink control information DCI Target reference signals include:

receiving the RSRP of the SRS reported by the user terminal, and when the ratio of the RSRP of a beam to other beams is greater than a preset threshold, using the beam as a target beam;

determining an uplink channel path loss reference index corresponding to the target beam, and determining indication information in the DCI used to indicate the target reference signal according to the L and the uplink channel path loss reference index;

and sending the DCI carrying the indication information to the user terminal, so that the user terminal determines the target reference signal according to the indication information.

In another specific embodiment, the receiving the Sounding Reference Signal SRS reported by the user terminal determines the target reference signal used for downlink path loss estimation according to the information of the SRS reported by the user terminal; The above target reference signals include:

receiving the RSRP of the SRS reported by the user terminal, and using the beam as a candidate beam when the ratio of the RSRPs of a beam to other beams is greater than a preset threshold;

Activating multiple candidate beams through MAC CE signaling;

receiving L L1-RSRPs reported by the user terminal, and selecting a target reference signal corresponding to the largest L1-RSRP;

determining indication information used to indicate the target reference signal in the DCI according to the reference signal index corresponding to the L and the target reference signal;

and sending the DCI carrying the indication information to the user terminal, so that the user terminal determines the target reference signal according to the indication information.

The embodiment of the present invention also provides an uplink open-loop power control method, which is applied to a user terminal, as shown in FIG. 2 , including:

Step 201: Receive the downlink control information DCI sent by the network side equipment, the downlink control information DCI includes the indication information of the target reference signal;

Step 202: Perform downlink path loss estimation according to the reference signal received power RSRP of the target reference signal.

In this embodiment, the user terminal determines the target reference signal based on the downlink control information issued by the network side device. Through the technical solution of the present invention, the accuracy of uplink power estimation can be improved, the problem of beam mismatch between the network side equipment and the user terminal can be solved, and the overhead caused by frequent RRC reconfiguration can be reduced, thereby effectively improving the uplink throughput of the user terminal .

Optionally, the uplink open-loop power control method further includes:

Sending the Sounding Reference Signal SRS to the network side device, so that the network side device determines the target reference signal used for downlink path loss estimation according to the SRS information reported by the user terminal.

Optionally, the target reference signal includes a reference signal block SSB and a channel state information reference signal CSI-RS.

Optionally, the uplink open-loop power control method further includes:

Receive a radio resource control RRC message sent by the network side device, the RRC message configures N reference signal indexes for the user terminal, each reference signal index corresponds to an uplink channel path loss reference index, and N is a positive integer;

Receive an RRC message sent by the network side device, where the RRC message is the user terminal configuration layer-reference signal received power L1-RSRP reporting quantity L, where L is a positive integer.

The technical solution of the present invention is further introduced below in conjunction with specific embodiments:

Embodiment one

In this embodiment, first, the base station (that is, the network side device) configures N SSB indexes or M CSI-RS resourceIDs for a certain user terminal in the cell through an RRC message, corresponding to N or M resource IDs one by one pusch-PathlossReferenceRS-Id (uplink channel path loss reference index).

Then, the base station side configures the number nrofReportedRS reported by the L1-RSRP through the RRC message, and obtains the corresponding nrofReportedRS CSI-RS resourceID and SSB index according to the L1-RSRP reported by the user terminal.

Secondly, the base station side selects the appropriate CSI-RS resourceID and SSBindex according to the SRS information reported by the user terminal, and indicates a certain CSI-RS resourceID and SSB index to the user terminal through the DCI information. Specifically:

For the uplink SRS sent by a user terminal receiving downlink scheduling information, if one of the N beams (such as beam "x") on the base station side receives the other beams (such as beams "y" and "z") If the ratio to RSRP is greater than the preset threshold THR1, the UE is considered to belong to beam "x" and stops when a beam is found;

The base station side finds the pusch-PathlossReferenceRS-Id corresponding to the beam "x", and at the same time corresponds it to the DCI in ascending order, for example, when the pusch-PathlossReferenceRS-Id corresponding to the beam "x"=3, and nrofReportedRS=4 , the DCI needs to use the 2-bit information "11" to indicate the pusch-PathlossReferenceRS-Id corresponding to the beam "x".

As shown below, the "pusch-PathlossReferenceRS-Id" and "pucch-PathlossReferenceRS-Id" fields may be used as indication information to indicate the pusch-PathlossReferenceRS-Id corresponding to the beam "x".

Finally, the base station indicates the target CSI-RS resourceID and SSB index of the user terminal through the DCI information. Since the pusch-PathlossReferenceRS-Id corresponds to the SSB index or CSI-RS resourceID one-to-one, the user terminal can use the indication information "11" in the DCI Determine the corresponding SSB index or CSI-RS resourceID, and then the user terminal measures and estimates the downlink path loss based on the RSRP of the target CSI-RS resourceID and SSB index to perform open-loop power estimation.

Embodiment two

In this embodiment, first, the base station (that is, the network side device) configures N SSB indexes or M CSI-RS resourceIDs for a certain user terminal in the cell through an RRC message, corresponding to N or M pusch-PathlossReferenceRS- Id and pucch-PathlossReferenceRS-Id.

Secondly, the base station side selects appropriate X CSI-RS resourceIDs and Y SSB indexes according to the SRS information reported by the user terminal, and activates them through MAC CE. Specifically:

For the uplink SRS sent by a user terminal receiving downlink scheduling information, if one of the N beams (such as beam "x") on the base station side and other beams (such as beams "y" and "z") receive If the ratio of RSRP is greater than the preset threshold THR1, the UE is considered to belong to beam "x"; poll in turn until X or Y satisfying CSI-RS or SSB beams are found;

On the base station side, beams X or Y pusch-PathlossReferenceRS-Id and pucch-PathlossReferenceRS-Id correspond to MAC CE in ascending order, for example, Y beams include pusch-PathlossReferenceRS-Id and pucch corresponding to the second beam of SSB -PathlossReferenceRS-Id=2, its MACCE=001000000...0 (number of digits is Y).

As shown below, the "pucch-PathlossReferenceRS-Id" and "pusch-PathlossReferenceRS-Id" fields may be used as indication information to indicate the pusch-PathlossReferenceRS-Id corresponding to the beam "x".

Then, the base station side configures the number nrofReportedRS reported by the L1-RSRP through the RRC message, and obtains the corresponding nrofReportedRS CSI-RS resourceID and SSB index according to the L1-RSRP reported by the user terminal.

Finally, the base station selects the CSI-RS resourceID and SSB index corresponding to the largest L1-RSRP, and indicates the target CSI-RS resourceID and SSB index of the user terminal through the DCI information, and the user terminal measures and Estimate downlink path loss for open loop power estimation. Specifically, the DCI bits correspond to the MAC CE in ascending order. For example, under the condition of nrofReportedRS=4, if the largest L1-RSRP corresponds to the second beam, the DCI needs to use 2 bits to indicate 10, and the user terminal can use the DCI The indication information "10" of the corresponding SSB index or CSI-RS resourceID is determined, and then the user terminal measures and estimates the downlink path loss based on the RSRP of the target CSI-RS resourceID and SSBindex to perform open-loop power estimation.

The embodiment of the present invention also provides an uplink open-loop power control device, which is applied to network side equipment, as shown in FIG. 3 , including a processor 31 and a transceiver 32,

The transceiver 32 is configured to receive the Sounding Reference Signal SRS reported by the user terminal;

The processor 31 is configured to determine a target reference signal used for downlink path loss estimation according to the SRS information reported by the user terminal;

The transceiver 32 is further configured to indicate the target reference signal to the user terminal through downlink control information DCI.

In this embodiment, the target reference signal used for downlink path loss estimation is determined based on the SRS information reported by the user terminal, and the target reference signal is indicated to the user terminal through downlink control information. Through the technical solution of the present invention, the accuracy of uplink power estimation can be improved, the problem of beam mismatch between the network side equipment and the user terminal can be solved, and the overhead caused by frequent RRC reconfiguration can be reduced, thereby effectively improving the uplink throughput of the user terminal .

Optionally, the target reference signal includes a reference signal block SSB and a channel state information reference signal CSI-RS.

Optionally, the transceiver 32 is further configured to configure N reference signal indexes for the user terminal through a radio resource control RRC message, each reference signal index corresponds to an uplink channel path loss reference index, and N is a positive integer; by The RRC message is the user terminal configuration layer-reference signal received power L1-RSRP reporting quantity L, where L is a positive integer;

The processor 31 is further configured to determine L reference signal indices according to the L1-RSRP reported by the user terminal.

Optionally, the transceiver 32 is also configured to receive the RSRP of the SRS reported by the user terminal, and when the ratio of the RSRP of a beam to other beams is greater than a preset threshold, the beam is used as a target beam;

The processor 31 is further configured to determine the uplink channel path loss reference index corresponding to the target beam, and determine the target reference signal in the DCI according to the L and the uplink channel path loss reference index instructions;

The transceiver 32 is further configured to send the DCI carrying the indication information to the user terminal, so that the user terminal determines the target reference signal according to the indication information.

Optionally, the transceiver 32 is also configured to receive the RSRP of the SRS reported by the user terminal, and when the ratio of the RSRP of a beam to other beams is greater than a preset threshold, the beam is used as a candidate beam; through the MAC CE signal ordering to activate multiple candidate beams; receiving L L1-RSRPs reported by the user terminal, and selecting a target reference signal corresponding to the largest L1-RSRP;

The processor 31 is further configured to determine indication information used to indicate the target reference signal in the DCI according to the reference signal index corresponding to the L and the target reference signal;

The transceiver 32 is further configured to send the DCI carrying the indication information to the user terminal, so that the user terminal determines the target reference signal according to the indication information.

The embodiment of the present invention also provides an uplink open-loop power control device, which is applied to a user terminal, as shown in FIG. 4 , including a processor 41 and a transceiver 42,

The transceiver 42 is configured to receive downlink control information DCI sent by the network side equipment, and the downlink control information DCI includes indication information of a target reference signal;

The processor 41 is configured to perform downlink path loss estimation according to the reference signal received power RSRP of the target reference signal.

In this embodiment, the user terminal determines the target reference signal based on the downlink control information issued by the network side device. Through the technical solution of the present invention, the accuracy of uplink power estimation can be improved, the problem of beam mismatch between the network side equipment and the user terminal can be solved, and the overhead caused by frequent RRC reconfiguration can be reduced, thereby effectively improving the uplink throughput of the user terminal .

Optionally, the transceiver 42 is further configured to send a sounding reference signal SRS to the network side device, so that the network side device determines a target reference signal for downlink path loss estimation according to the SRS information reported by the user terminal.

Optionally, the target reference signal includes a reference signal block SSB and a channel state information reference signal CSI-RS.

Optionally, the transceiver 42 is also configured to receive a radio resource control RRC message sent by the network side device, the RRC message configures N reference signal indexes for the user terminal, and each reference signal index corresponds to an uplink Channel path loss reference index, N is a positive integer; receive the RRC message sent by the network side device, the RRC message is the user terminal configuration layer-reference signal received power L1-RSRP reported quantity L, L is a positive integer .

An embodiment of the present invention also provides a communication device, including: a memory, a processor, and a computer program stored on the memory and operable on the processor. When the computer program is executed by the processor, the above-mentioned Steps in the uplink open-loop power control method.

An embodiment of the present invention also provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the above-mentioned uplink open-loop power control method is implemented. step.

It should be understood that the embodiments described herein may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, other electronic units for performing the functions described in this application or a combination thereof.

For a software implementation, the techniques described herein can be implemented through modules (eg, procedures, functions, and so on) that perform the functions described herein. Software codes can be stored in memory and executed by a processor. Memory can be implemented within the processor or external to the processor.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, devices, or computer program products. Accordingly, embodiments of the invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the 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, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, user terminal devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general-purpose computer, a special purpose computer, an embedded processor, or a processor of other programmable data processing user terminal equipment to produce a machine so that the computer or other programmable data processing user terminal equipment may execute The instructions produce means for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing user terminal equipment to operate in a specific manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising instruction means, The instruction means implements the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing user terminal equipment, so that a series of operation steps are executed on the computer or other programmable user terminal equipment to produce computer-implemented processing, so that the computer or other programmable data processing The instructions executed on the user terminal equipment provide steps for realizing the functions specified in one or more procedures of the flow chart and/or one or more blocks of the block diagram.

Having described preferred embodiments of embodiments of the present invention, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be interpreted to cover the preferred embodiment and all changes and modifications which fall within the scope of the embodiments of the present invention.

It should also be noted that in this article, relational terms such as first and second etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations Any such actual relationship or order exists between. Moreover, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or user terminal equipment comprising a series of elements includes not only those elements, but also includes not expressly other elements listed, or also include elements inherent to such a process, method, article, or user terminal equipment. Without further limitations, an element defined by the statement "comprising a..." does not exclude the existence of another same element in the process, method, article, or user terminal device that includes the element.

What has been described above is a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications can also be made without departing from the principles described in the present invention. within the scope of protection of the invention.

Claims (16)

1. The uplink open loop power control method is characterized by being applied to network side equipment and comprising the following steps:

receiving a Sounding Reference Signal (SRS) reported by a user terminal, and determining a target reference signal estimated by downlink path loss according to the information of the SRS reported by the user terminal;

indicating the target reference signal to the user terminal through downlink control information DCI;

configuring N reference signal indexes for the user terminal through a Radio Resource Control (RRC) message, wherein each reference signal index corresponds to an uplink channel path loss reference index, and N is a positive integer;

configuring reporting quantity L of layer-reference signal received power L1-RSRP for the user terminal through RRC message, wherein L is a positive integer;

and determining L reference signal indexes according to the L1-RSRP reported by the user terminal.

2. The uplink open loop power control method according to claim 1, wherein the target reference signal includes a reference signal block SSB and a channel state information reference signal CSI-RS.

3. The method for controlling uplink open loop power according to claim 1, wherein the receiving the SRS reported by the ue determines a target reference signal for downlink loss estimation according to the SRS information reported by the ue; indicating the target reference signal to the user terminal through downlink control information DCI comprises:

the RSRP of the SRS reported by the user terminal is received, and when the ratio of the RSRP of one beam to the RSRP of other beams is greater than a preset threshold, the beam is used as a target beam;

determining an uplink channel path loss reference index corresponding to the target beam, and determining indication information used for indicating the target reference signal in the DCI according to the L and the uplink channel path loss reference index;

and transmitting the DCI carrying the indication information to the user terminal so that the user terminal can determine the target reference signal according to the indication information.

4. The method for controlling uplink open loop power according to claim 1, wherein the receiving the SRS reported by the ue determines a target reference signal for downlink loss estimation according to the SRS information reported by the ue; indicating the target reference signal to the user terminal through downlink control information DCI comprises:

the RSRP of the SRS reported by the user terminal is received, and when the ratio of the RSRP of one beam to the RSRP of other beams is greater than a preset threshold, the beam is used as a candidate beam;

activating a plurality of candidate beams through MAC CE signaling;

receiving L1-RSRPs reported by the user terminal, and selecting a target reference signal corresponding to the largest L1-RSRP;

determining indication information used for indicating the target reference signal in the DCI according to the reference signal index corresponding to the L and the target reference signal;

and transmitting the DCI carrying the indication information to the user terminal so that the user terminal can determine the target reference signal according to the indication information.

5. The uplink open loop power control method is characterized by being applied to a user terminal and comprising the following steps:

receiving Downlink Control Information (DCI) sent by network side equipment, wherein the DCI comprises indication information of a target reference signal;

estimating downlink path loss according to Reference Signal Received Power (RSRP) of the target reference signal;

receiving a Radio Resource Control (RRC) message sent by the network side equipment, wherein the RRC message configures N reference signal indexes for the user terminal, each reference signal index corresponds to an uplink channel path loss reference index, and N is a positive integer;

and receiving an RRC message sent by the network side equipment, wherein the RRC message is the reporting number L of the reference signal receiving power L1-RSRP of the user terminal configuration layer, and L is a positive integer.

6. The uplink open loop power control method of claim 5, further comprising:

and sending a Sounding Reference Signal (SRS) to the network side equipment so that the network side equipment can determine a target reference signal estimated by downlink path loss according to the SRS information reported by the user terminal.

7. The uplink open loop power control method according to claim 5, wherein the target reference signal includes a reference signal block SSB and a channel state information reference signal CSI-RS.

8. An uplink open loop power control device is characterized by being applied to network side equipment and comprising a processor and a transceiver,

the transceiver is used for receiving a sounding reference signal SRS reported by the user terminal;

the processor is used for determining a target reference signal estimated by downlink path loss according to the SRS information reported by the user terminal;

the transceiver is further configured to indicate the target reference signal to the user terminal through downlink control information DCI;

the transceiver is further configured to configure N reference signal indexes for the ue through a radio resource control RRC message, each reference signal index corresponds to an uplink channel path loss reference index, and N is a positive integer; configuring reporting quantity L of layer-reference signal received power L1-RSRP for the user terminal through RRC message, wherein L is a positive integer;

the processor is further configured to determine L reference signal indexes according to L1-RSRP reported by the ue.

9. The uplink open loop power control apparatus of claim 8, wherein the target reference signal comprises a reference signal block SSB and a channel state information reference signal CSI-RS.

10. The uplink open loop power control device according to claim 8, wherein,

the transceiver is further configured to receive an RSRP of the SRS reported by the ue, and when a ratio of the RSRP of one beam to the RSRP of other beams is greater than a preset threshold, use the beam as a target beam;

the processor is further configured to determine an uplink channel path loss reference index corresponding to the target beam, and determine, according to the L and the uplink channel path loss reference index, indication information in the DCI for indicating the target reference signal;

the transceiver is further configured to send DCI carrying the indication information to the user terminal, so that the user terminal determines the target reference signal according to the indication information.

11. The uplink open loop power control device according to claim 8, wherein,

the transceiver is further configured to receive an RSRP of the SRS reported by the ue, and when a ratio of the RSRP of one beam to the RSRP of other beams is greater than a preset threshold, use the beam as a candidate beam; activating a plurality of candidate beams through MAC CE signaling; receiving L1-RSRPs reported by the user terminal, and selecting a target reference signal corresponding to the largest L1-RSRP;

the processor is further configured to determine indication information in the DCI for indicating the target reference signal according to the L and a reference signal index corresponding to the target reference signal;

the transceiver is further configured to send DCI carrying the indication information to the user terminal, so that the user terminal determines the target reference signal according to the indication information.

12. An uplink open loop power control device is characterized by being applied to a user terminal and comprising a processor and a transceiver,

the transceiver is configured to receive downlink control information DCI sent by a network side device, where the downlink control information DCI includes indication information of a target reference signal;

the processor is used for estimating downlink path loss according to Reference Signal Received Power (RSRP) of the target reference signal;

the transceiver is further configured to receive a radio resource control RRC message sent by the network side device, where the RRC message configures N reference signal indexes for the user terminal, each reference signal index corresponds to an uplink channel path loss reference index, and N is a positive integer; and receiving an RRC message sent by the network side equipment, wherein the RRC message is the reporting number L of the reference signal receiving power L1-RSRP of the user terminal configuration layer, and L is a positive integer.

13. The uplink open loop power control device of claim 12, wherein,

the transceiver is further configured to send a sounding reference signal SRS to the network side device, so that the network side device determines a target reference signal for downlink path loss estimation according to information of the SRS reported by the user terminal.

14. The uplink open loop power control apparatus of claim 12 wherein the target reference signal comprises a reference signal block SSB and a channel state information reference signal CSI-RS.

15. A communication device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps in the uplink open loop power control method according to any one of claims 1 to 7.

16. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps in the uplink open loop power control method according to any of claims 1 to 7.

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