WO2023011619A1

WO2023011619A1 - Communication method and apparatus, and system

Info

Publication number: WO2023011619A1
Application number: PCT/CN2022/110476
Authority: WO
Inventors: 胡丹; 张旭; 刘显达; 李晨琬
Original assignee: 华为技术有限公司
Priority date: 2021-08-06
Filing date: 2022-08-05
Publication date: 2023-02-09
Also published as: CN115707108A

Abstract

Embodiments of the present application provide a communication method and apparatus, and a system, which are used to improve power headroom reporting functionality in a coordinated scenario of a multi-network device. The method comprises: determining a first power headroom and a second power headroom; reporting the first power headroom and the second power headroom, the first power headroom being determined according to a first PUSCH repetition, the second power headroom being determined according to a second PUSCH repetition, the first PUSCH repetition being associated with a first beam, and the second PUSCH repetition being associated with a second beam; alternatively, the first power headroom being determined according to a third PUSCH, the second power headroom being determined according to a reference PUSCH transmission, and the third PUSCH being associated with the first beam.

Description

A communication method, device and system

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202110903317.6 and the application title "A communication method, device and system" submitted to the China Patent Office on August 6, 2021, the entire contents of which are incorporated in this application by reference middle.

technical field

The present application relates to the technical field of communication, and in particular to a communication method, device and system.

Background technique

In a wireless communication system, a user equipment (user equipment, UE) can send an uplink signal on an uplink carrier according to scheduling by a base station. The specific process may be: the UE determines the power headroom (power headroom, PH) of the uplink carrier, and then generates a power headroom report (power headroom report, PHR) based on the PH, and reports the PHR to the network device. The network device can adjust the uplink transmission power of the UE according to the PHR.

For example, when the PH value corresponding to the PHR is greater than 0, it means that the UE has remaining power to further expand the uplink transmission bandwidth and transmit more data. The larger the PH value, the more remaining power of the UE, which can increase the uplink transmission power of the UE. If the PH value is negative, the UE reports that its scheduled transmission power has exceeded the maximum allowable transmission power, and the uplink transmission power of the UE should be reduced.

In order to improve the reliability of physical uplink shared channel (PUSCH) transmission, multiple network devices can cooperate to receive and process the PUSCH. For example, PUSCH uses two repeated transmissions. The first repeated transmission uses precoding mode 1 to facilitate the reception of TRP1, and the second repeated transmission uses precoding mode 2 to facilitate the reception of TRP2. PUSCH uses different precodings at different times. way (or on different beams) to repeatedly send the same TB.

Under the existing mechanism, the same PUSCH usually uses a set of power control parameters and precoding matrix, which is difficult to meet the scenario where multiple network devices cooperate to receive and process PUSCH.

Contents of the invention

The present application provides a communication method, device and system for improving transmission performance during communication.

In the first aspect, the communication method provided by the embodiment of the present application can be applied to a terminal device or a component on the terminal device, for example, a chip. The following takes terminal equipment as an example to illustrate, the method includes: determining the first power headroom and the second power headroom; reporting the first power headroom and the second power headroom; wherein, the first power headroom is Determined according to the first PUSCH repetition, the second power headroom is determined according to the second PUSCH repetition, the first PUSCH repetition is associated with the first beam, and the second PUSCH repetition is associated with the second beam. Alternatively, the first power headroom is determined according to a third PUSCH, the second power headroom is determined according to reference PUSCH transmission, and the third PUSCH is associated with the first beam.

Through the above method, the terminal device can report the corresponding power headroom based on the first PUSCH repetition and the second PUSCH repetition of a serving cell in the multi-network device cooperation scenario, that is, report the first power headroom and the second power headroom , thus, in the scenario where the precoding methods corresponding to the first beam and the second beam are different, the network device can better schedule PUSCH repetitions based on the first power headroom and the second power headroom, and improve the performance of multi-network devices. Collaborative performance.

In a possible implementation manner, the terminal device acquires configuration information of a first SRS resource set and configuration information of a second SRS resource set; the first SRS resource set is associated with a first beam, and the second SRS resource set is associated with a second SRS resource set. beam; or, the first beam is associated with the first power control parameter, and the second beam is associated with the second power control parameter. The terminal device is configured to obtain the configuration information of the first PUSCH repetition and the configuration information of the second PUSCH repetition.

A possible implementation manner, the first power headroom and the second power headroom are carried on a power headroom report media access control (media access control, MAC) layer control element (MAC control element, MAC CE) .

Through the above method, the first power headroom and the second power headroom can be reported on one power headroom report MAC CE, and the first power headroom and the second power headroom do not need to be sent separately, reducing signaling overhead.

In a possible implementation manner, the power headroom report MAC CE includes multiple power headrooms, and the order of arrangement of the multiple power headrooms is: first according to the corresponding power headrooms of the multiple power headrooms The serving cell indexes are arranged in ascending order, and then arranged in ascending order according to beam indexes corresponding to each power headroom of the multiple power headrooms.

In a possible implementation manner, the power headroom report MAC CE includes multiple power headrooms, and the order of arrangement of the multiple power headrooms is: first according to the corresponding power headrooms of the multiple power headrooms The beam indexes are arranged in ascending order, and then arranged in ascending order according to the serving cell indexes corresponding to each power headroom of the multiple power headrooms.

Through the above method, the complexity of reporting multiple power headrooms by the terminal device can be simplified, and correspondingly, the complexity of analyzing multiple power headrooms by the network device can also be reduced.

A possible implementation manner, the reporting of the first power headroom and the second power headroom includes any of the following:

sending the first power headroom and the second power headroom on the first PUSCH repetition;

sending the first power headroom and the second power headroom on the second PUSCH repetition;

sending the first power headroom and the second power headroom on the third PUSCH;

Send the first power headroom and the second power headroom on a fourth PUSCH, where the fourth PUSCH is located in a different location from the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH Serve the community.

A possible implementation, the reporting power headroom report MAC CE includes any of the following:

Sending a power headroom report MAC CE on the first PUSCH repetition;

Sending a power headroom report MAC CE on the second PUSCH repetition;

Sending a power headroom report MAC CE on the third PUSCH;

The power headroom report MAC CE is sent on a fourth PUSCH, where the fourth PUSCH is located in a different serving cell from the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

Through the foregoing method, the terminal device can report the first power headroom and the second power headroom in various ways, thereby improving the flexibility of power headroom reporting.

A possible implementation manner, the fourth PUSCH satisfies any of the following:

The fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain;

The fourth PUSCH overlaps with the first PUSCH repetition in the time domain, and partially overlaps with the second PUSCH repetition in the time domain;

The fourth PUSCH overlaps in the time domain with the first PUSCH repetition, and overlaps in the time domain with the second PUSCH repetition;

The fourth PUSCH does not overlap with the first PUSCH repetition in time domain, and the fourth PUSCH does not overlap with the second PUSCH repetition in time domain.

Through the above method, the reporting of the first power headroom and the second power headroom can be reported based on the relationship between the fourth PUSCH and the first PUSCH repetition or the second PUSCH repetition in the time domain, which improves the performance of reporting the power headroom, thus, The network device can more accurately determine the uplink resource and the uplink power of the terminal device.

When triggering power headroom reporting is related to the first PUSCH repetition, sending the first power headroom and the second power headroom on the first PUSCH repetition;

When triggering power headroom reporting is related to the second PUSCH repetition, sending the first power headroom and the second power headroom on the second PUSCH repetition;

When triggering power headroom reporting is related to the third PUSCH, sending the first power headroom and the second power headroom on the third PUSCH;

When triggering power headroom reporting is related to the fourth PUSCH, sending the first power headroom and the second power headroom on the fourth PUSCH.

When triggering the power headroom report is related to the first PUSCH repetition, sending the power headroom report MAC CE on the first PUSCH repetition;

When triggering the power headroom report is related to the second PUSCH repetition, sending the power headroom report MAC CE on the second PUSCH repetition;

When triggering the power headroom report is related to the third PUSCH, sending the power headroom report MAC CE on the third PUSCH;

When triggering the power headroom report is related to the fourth PUSCH, sending the power headroom report MAC CE on the fourth PUSCH.

Through the above method, the method of reporting the first power headroom and the second power headroom under different triggering scenarios is considered, so as to improve the flexibility of reporting.

In a possible implementation manner, the first power control parameter or the second power control parameter includes at least one of the following: a basic value of an open-loop power control parameter P0, a path loss compensation factor alpha, a path loss reference signal ID, and a transmission power control parameter. TPC command, closed-loop index.

Therefore, the terminal device can accurately determine the transmission power of the uplink transmission on the first PUSCH repetition or the third PUSCH or the second PUSCH repetition, improving the accuracy of power headroom determination.

In a possible implementation manner, before the reporting of the first power headroom and the second power headroom, first indication information may also be received, where the first indication information is used to instruct the terminal device to send the first PUSCH repeat and the second PUSCH repeats.

In a possible implementation manner, before the reporting of the first power headroom and the second power headroom, second indication information is also received, and the second indication information is used to instruct the terminal device to send a third PUSCH transmission.

In a possible implementation manner, before the reporting of the first power headroom and the second power headroom, third indication information is also received, and the third indication information is used to instruct the terminal device to send a fourth PUSCH transmission.

A possible implementation manner is to send the first PUSCH repetition and the second PUSCH repetition.

Through the above method, the terminal device can determine the first power headroom and the second power headroom based on the actual transmission situation, for example, whether to send the first PUSCH repetition and the second PUSCH repetition, the third PUSCH transmission, and the fourth PUSCH transmission , or report the first power headroom and the second power headroom, so as to improve the performance of power headroom reporting.

In a second aspect, the embodiment of the present application provides a communication method, which can be applied to a terminal device or a component on the terminal device, for example, a chip. The method includes: determining the first field and the second field, and reporting the first field and the second field. Wherein, the order of reporting the first field and the second field may be sorted according to the ascending order of the serving cell index of the first field, and then sorted according to the ascending order of the serving cell index of the second field. Alternatively, the order of reporting the first field and the second field may first be sorted according to the ascending order of the beam indexes of the first field and the second field, and then sorted according to the ascending order of the serving cell index corresponding to the first field and the second field.

In a possible implementation manner, the first field indicates the first power headroom of the first PUSCH repetition, the second field indicates the second power headroom of the second PUSCH repetition, the first PUSCH repetition is associated with the first beam, and the second PUSCH repetition is associated with the second beam. The beam index of the first beam and the beam index of the second beam may be in ascending order.

In another possible implementation manner, the first field indicates the power headroom of the third PUSCH, and the second field indicates the power headroom of the reference PUSCH. The third PUSCH is associated with the first beam.

Through the above method, the terminal device can report the corresponding power headroom based on the first PUSCH repetition and the second PUSCH repetition of a serving cell in a multi-network device cooperation scenario, that is, report the first field and the second field, thus, In the scenario where the precoding methods corresponding to the first beam and the second beam are different, the network device can better schedule the PUSCH repeatedly based on the first power headroom and the second power headroom, and improve the performance of multi-network device cooperation . In addition, by sorting the first field and the second field, the complexity of reporting multiple power headrooms by the terminal device can be simplified, and correspondingly, the complexity of analyzing multiple power headrooms by the network device can also be reduced.

In a possible implementation manner, the terminal device acquires configuration information of a first SRS resource set and configuration information of a second SRS resource set; the first SRS resource set is associated with a first beam, and the second SRS resource set is associated with a second SRS resource set. beam; or, the first beam is associated with the first power control parameter, and the second beam is associated with the second power control parameter.

In a possible implementation manner, the first field and the second field are carried on a power headroom report MAC CE.

A possible implementation manner, the reporting of the first field and the second field includes any of the following:

sending the first field and the second field on the first PUSCH repetition;

sending the first field and the second field on the second PUSCH repetition;

sending the first field and the second field on the third PUSCH;

The first field and the second field are sent on a fourth PUSCH, where the fourth PUSCH is located in a different serving cell from the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

Sending a power headroom report MAC CE on the first PUSCH repetition;

Sending a power headroom report MAC CE on the second PUSCH repetition;

Sending a power headroom report MAC CE on the third PUSCH;

Sending a power headroom report MAC CE on a fourth PUSCH, where the fourth PUSCH is located in a different serving cell from the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

A possible implementation manner, the fourth PUSCH satisfies any of the following items:

The fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain;

In a possible implementation manner, the terminal device reports the first field and the second field, including any of the following:

When triggering power headroom reporting is related to the first PUSCH repetition, sending the first field and the second field on the first PUSCH repetition;

When triggering power headroom reporting is related to the second PUSCH repetition, sending the first field and the second field on the second PUSCH repetition;

When triggering power headroom reporting is related to the third PUSCH, sending the first field and the second field on the third PUSCH;

When triggering power headroom reporting is related to the fourth PUSCH, sending the first field and the second field on the fourth PUSCH.

In a possible implementation, the terminal device reports the power headroom report MAC CE, including any of the following:

In a possible implementation manner, before the terminal device reports the first field and the second field, it may also receive first indication information, and the first indication information is used to instruct the terminal device to send the first PUSCH repetition and the second PUSCH repetition. Push repeats.

In a possible implementation manner, before the terminal device reports the first field and the second field, it may also receive second indication information, where the second indication information is used to instruct the terminal device to send a third PUSCH transmission;

In a possible implementation manner, before the terminal device reports the first field and the second field, it may further receive third indication information, where the third indication information is used to instruct the terminal device to send the fourth PUSCH transmission.

It should be noted that, for the beneficial effects of any possible implementation manner of the second aspect, reference may be made to the beneficial effects of the first aspect, and details are not repeated here.

In the third aspect, a communication method provided by an embodiment of the present application can be applied to a network device, or a component in a network device, such as a chip, and the method includes: sending first configuration information, the first configuration information Used to indicate the first PUSCH repetition and the second PUSCH repetition; receive the first power headroom and the second power headroom; wherein, the first power headroom is determined according to the first PUSCH repetition, and the second The power headroom is determined according to a second PUSCH repetition, the first PUSCH repetition is associated with the first beam, and the second PUSCH repetition is associated with the second beam. Alternatively, the first power headroom is determined according to a third PUSCH, the second power headroom is determined according to reference PUSCH transmission, and the third PUSCH is associated with the first beam.

Through the above method, when the network device configures the first PUSCH repetition and the second PUSCH repetition for the terminal device, that is, the terminal device can be based on the first PUSCH repetition and the second PUSCH repetition of a serving cell in a multi-network device cooperation scenario, Report the corresponding power headroom, that is, report the first power headroom and the second power headroom. Correspondingly, after receiving the first power headroom and the second power headroom, the network device can schedule the uplink of the terminal device accordingly. Transmission, to improve the uplink transmission performance of terminal equipment.

In a possible implementation, the first configuration information includes: configuration information of a first SRS resource set and configuration information of a second SRS resource set; the first SRS resource set is associated with a first beam, and the second SRS resource set is associated with a first beam, and the second SRS resource set is associated with a first beam. The resource set is associated with the second beam; or, the first beam is associated with the first power control parameter, and the second beam is associated with the second power control parameter.

In a possible implementation manner, the first power headroom and the second power headroom are carried on the power headroom report MAC CE.

In a possible implementation, the power headroom report MAC CE includes a plurality of power headrooms, and the arrangement order of the plurality of power headrooms is: first according to the serving cell corresponding to each power headroom of the plurality of power headrooms The indexes are arranged in ascending order, and then arranged in ascending order according to the beam indexes corresponding to the respective power headrooms of the multiple power headrooms.

In a possible implementation manner, the network device receives the first power headroom and the second power headroom, including any of the following:

receiving the first power headroom and the second power headroom on the first PUSCH repetition;

receiving the first power headroom and the second power headroom on the second PUSCH repetition;

receiving the first power headroom and the second power headroom on the third PUSCH;

The first power headroom and the second power headroom are received on a fourth PUSCH, where the fourth PUSCH is located at a different location from the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH Serve the community.

In a possible implementation, the network device receives the power headroom report MAC CE, including any of the following:

Receive a power headroom report MAC CE on the first PUSCH repetition;

Receive a power headroom report MAC CE on the second PUSCH repetition;

Receive a power headroom report MAC CE on the third PUSCH;

The power headroom report MAC CE is received on a fourth PUSCH, where the fourth PUSCH is located in a different serving cell from the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

Through the above method, the network device can receive the first power headroom and the second power headroom in multiple ways, and the flexibility of the network device in scheduling transmission of the terminal device based on the power headroom is improved.

The fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain;

Through the above method, the first power headroom and the second power headroom received by the network device can be reported based on the relationship between the fourth PUSCH and the first PUSCH repetition or the second PUSCH repetition in the time domain, which improves the reported power headroom. Therefore, the network device can more accurately determine the uplink resource and the uplink power of the terminal device.

In a possible implementation manner, before receiving the first power headroom and the second power headroom, the network device may also send first indication information, where the first indication information is used to instruct the terminal device to send the first One PUSCH repetition and second PUSCH repetition.

In a possible implementation manner, before receiving the first power headroom and the second power headroom, the network device may also send second indication information, where the second indication information is used to instruct the terminal device to send the first power headroom. Three PUSCH transmissions;

In a possible implementation manner, before receiving the first power headroom and the second power headroom, the network device may also send third indication information, where the third indication information is used to instruct the terminal device to send the first power headroom. Four PUSCH transmissions.

In a possible implementation manner, the network device may also receive the first PUSCH repetition and the second PUSCH repetition.

Through the above method, considering the methods of reporting the first power headroom and the second power headroom under different triggering scenarios, the flexibility of reporting the power headroom is improved.

In a fourth aspect, a communication method provided by an embodiment of the present application can be applied to a network device, or a component in a network device, such as a chip, and the method includes: sending first configuration information, the first configuration information Used to indicate the first PUSCH repetition and the second PUSCH repetition; receive the first field and the second field; wherein, the order of reporting the first field and the second field may be sorted in ascending order according to the serving cell index of the first field, Then sort in ascending order according to the serving cell index in the second field. Alternatively, the order of reporting the first field and the second field may first be sorted according to the ascending order of the beam indexes of the first field and the second field, and then sorted according to the ascending order of the serving cell index corresponding to the first field and the second field.

In the fourth aspect, in a possible implementation manner, the first field indicates the first power headroom of the first PUSCH repetition, the second field indicates the second power headroom of the second PUSCH repetition, and the first PUSCH repetition and the first The beams are associated, and the second PUSCH repetition is associated with the second beam. The beam index of the first beam and the beam index of the second beam may be in ascending order.

In another possible implementation manner of the fourth aspect, the first field indicates the power headroom of the third PUSCH, and the second field indicates the power headroom of the reference PUSCH. The third PUSCH is associated with the first beam.

In a possible implementation manner, the first field and the second field are carried on the power headroom report MAC CE.

In a possible implementation manner, the network device receives the first field and the second field, including any of the following:

receiving the first field and the second field on the first PUSCH repetition;

receiving the first field and the second field on the second PUSCH repetition;

receiving the first field and the second field on the third PUSCH;

The first field and the second field are received on a fourth PUSCH, where the fourth PUSCH is located in a different serving cell from the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH.

receiving the power headroom report MAC CE on the first PUSCH repetition;

receiving the power headroom report MAC CE on the second PUSCH repetition;

Receive the power headroom report MAC CE on the third PUSCH;

The fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain;

In a possible implementation manner, before receiving the first field and the second field, the network device may also send first indication information, where the first indication information is used to instruct the terminal device to send the first PUSCH repetition and Second PUSCH repeat;

In a possible implementation manner, before receiving the first field and the second field, the network device may also send second indication information, where the second indication information is used to instruct the terminal device to send a third PUSCH transmission;

In a possible implementation manner, before receiving the first field and the second field, the network device may further send third indication information, where the third indication information is used to instruct the terminal device to send a fourth PUSCH transmission.

It should be noted that, for the beneficial effect of any possible implementation manner of the fourth aspect, reference may be made to the beneficial effect of the third aspect, which will not be repeated here.

In a fifth aspect, the embodiment of the present application provides a communication device, and the device may be a terminal device, or may be a chip in the terminal device. The apparatus may include a processing unit, a transceiving unit and a receiving unit. It should be understood that here the sending unit and the receiving unit may also be transceiving units. When the device is a terminal device, the processing unit may be a processor, the sending unit and the receiving unit may be transceivers; the communication device may also include a storage unit, which may be a memory; the storage unit is used to store instructions , the processing unit executes the instruction stored in the storage unit, so that the terminal device executes the method in the first aspect or any one of the possible designs of the first aspect, or makes the terminal device execute the second aspect or any one of the second aspect One possible approach in the design. When the device is a chip in a terminal device, the processing unit may be a processor, and the sending unit and the receiving unit may be input/output interfaces, pins or circuits, etc.; the processing unit executes the instructions stored in the storage unit to Make the chip execute the method in the first aspect or any possible design of the first aspect, or make the chip execute the method in the second aspect or any possible design of the second aspect. The storage unit is used to store instructions, and the storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit outside the chip in the terminal device (for example, a read-only memory, random access memory, etc.).

In a sixth aspect, the embodiment of the present application provides a communication device, and the device may be a network device or a chip in the network device. The apparatus may include a processing unit, a transceiving unit and a receiving unit. It should be understood that here the sending unit and the receiving unit may also be transceiving units. When the device is a network device, the processing unit may be a processor, the sending unit and the receiving unit may be transceivers; the communication device may also include a storage unit, which may be a memory; the storage unit is used to store instructions , the processing unit executes the instruction stored in the storage unit, so that the first network device executes the method in the third aspect or any possible design of the third aspect, or, makes the second network device execute the fourth aspect or A method in any possible design of the fourth aspect. When the device is a chip in a network device, the processing unit may be a processor, and the sending unit and the receiving unit may be input/output interfaces, pins or circuits, etc.; the processing unit executes the instructions stored in the storage unit to Make the chip execute the method in the third aspect or any possible design of the third aspect, or make the chip execute the method in the fourth aspect or any possible design of the fourth aspect. The storage unit is used to store instructions, and the storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit outside the chip in the terminal device (for example, a read-only memory, random access memory, etc.).

In the seventh aspect, the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is run on a computer, the computer is made to execute the above-mentioned first aspect or the second aspect Or the method of the third aspect or the fourth aspect.

In the eighth aspect, the embodiment of the present application also provides a computer program product including a program, which, when run on a computer, causes the computer to execute the method of the first aspect or the second aspect or the third aspect or the fourth aspect.

In a ninth aspect, a communication device is provided, including: a processor, a communication interface, and a memory. The communication interface is used to transfer information, and/or messages, and/or data between the device and other devices. The memory is used to store computer-executable instructions, and when the device is running, the processor executes the computer-executable instructions stored in the memory, so that the device executes the first aspect or any design in the first aspect, the second aspect Or any method described in the second aspect.

In a tenth aspect, a communication device is provided, including: a processor, a communication interface, and a memory. The communication interface is used to transfer information, and/or messages, and/or data between the device and other devices. The memory is used to store computer-executable instructions, and when the device is running, the processor executes the computer-executable instructions stored in the memory, so that the device executes any design in the third aspect or the third aspect, the fourth aspect Or any method described in the fourth aspect.

In the eleventh aspect, the embodiment of the present application provides a chip, the chip is coupled with the memory, and executes the method of the first aspect and any possible design thereof, the second aspect and any possible design thereof of the embodiment of the present application .

In the twelfth aspect, a chip provided by the embodiment of the present application, the chip is coupled with the memory, and executes the method of the third aspect and any possible design thereof, the fourth aspect and any possible design thereof of the embodiment of the present application .

In a thirteenth aspect, the embodiment of the present application provides a chip, including a communication interface and at least one processor, the processor operates to execute the first aspect of the embodiment of the present application or any design in the first aspect, the second aspect and Its any possible design of the described method.

In a fourteenth aspect, the embodiment of the present application provides a chip, including a communication interface and at least one processor, the processor operates to execute any design in the third aspect or the third aspect of the embodiment of the present application, the fourth aspect and Its any possible design of the described method.

In a fifteenth aspect, the embodiment of the present application further provides a communication system, including the terminal device described in the first aspect and the first network device described in the third aspect.

In a sixteenth aspect, the embodiment of the present application further provides a communication system, including the terminal device described in the second aspect and the first network device described in the fourth aspect.

It should be noted that "coupling" in the embodiments of the present application means that two components are directly or indirectly combined with each other.

Description of drawings

FIG. 1-FIG. 3 are schematic structural diagrams of a communication system provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of an application scenario provided by an embodiment of the present application;

FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of an uplink transmission resource provided by an embodiment of the present application;

7a and 7b are schematic structural diagrams of a power headroom report MAC CE provided by an embodiment of the present application;

FIG. 8 is a schematic flow chart of a communication method provided by an embodiment of the present application;

FIG. 9 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of an uplink transmission resource provided by an embodiment of the present application;

FIG. 11a and FIG. 11b are schematic structural diagrams of a power headroom report MAC CE provided by an embodiment of the present application;

FIG. 12 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 13 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 14 is a schematic diagram of an uplink transmission resource provided by an embodiment of the present application;

FIG. 15a and FIG. 15b are schematic structural diagrams of a power headroom report MAC CE provided by an embodiment of the present application;

16a-16b are schematic diagrams of an uplink transmission resource provided by an embodiment of the present application;

FIG. 17 is a schematic diagram of an uplink transmission resource provided by an embodiment of the present application;

FIG. 18a and FIG. 18b are schematic structural diagrams of a power headroom report MAC CE provided by an embodiment of the present application;

FIG. 19 is a schematic diagram of an uplink transmission resource provided by an embodiment of the present application;

FIG. 20a and FIG. 20b are schematic structural diagrams of a power headroom report MAC CE provided by an embodiment of the present application;

FIG. 21 is a schematic diagram of an uplink transmission resource provided by an embodiment of the present application;

FIG. 22a and FIG. 22b are schematic structural diagrams of a power headroom report MAC CE provided by an embodiment of the present application;

FIG. 23 is a schematic flow chart of a communication method provided by an embodiment of the present application;

FIG. 24 is a schematic structural diagram of a power headroom report MAC CE provided by an embodiment of the present application;

FIG. 25a and FIG. 25b are schematic structural diagrams of a power headroom report MAC CE provided by an embodiment of the present application;

FIG. 26a and FIG. 26b are schematic structural diagrams of a power headroom report MAC CE provided by an embodiment of the present application;

FIG. 27 is a schematic flow chart of a communication method provided by an embodiment of the present application;

FIG. 28 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 29 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

The present application presents various aspects, embodiments or features in terms of a system that can include a number of devices, components, modules and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. In addition, combinations of these schemes can also be used.

In addition, in the embodiments of the present application, the word "exemplary" is used as an example, illustration or explanation. Any embodiment or design described herein as "example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present concepts in a concrete manner.

The network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. For the evolution of architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

Part of the terms used in the embodiments of the present application are explained below to facilitate the understanding of those skilled in the art.

1) A terminal device may be a device with a wireless transceiver function, and may also be called a terminal. Terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as on aircraft, balloons, and satellites, etc.). The terminal device may be user equipment (user equipment, UE), where the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device with a wireless communication function. Exemplarily, the UE may be a mobile phone (mobile phone), a tablet computer or a computer with a wireless transceiver function. The terminal device can also be a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a smart Wireless terminals in power grids, wireless terminals in smart cities, wireless terminals in smart homes, etc. In this embodiment of the application, the device used to realize the function of the terminal device may be a terminal device; it may also be a device capable of supporting the terminal device to realize the function, such as a chip system, which may be installed in the terminal device or connected with the terminal device Matching is used. In the embodiment of the present application, the system-on-a-chip may be composed of chips, or may include chips and other discrete devices. In this embodiment of the present application, description may be made by taking the terminal device as an example for realizing the function of the terminal device. The embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.

In the embodiment of the present application, the terminal device may be used for receiving downlink signals and/or sending uplink signals.

2) The network device may be a device deployed in the wireless access network and capable of wireless communication with the terminal device. The network device may be a base station (base station, BS). Among them, the base station may have various forms, such as a macro base station, a micro base station, a relay station, and an access point. The network device in the embodiment of the present application is an access device for a terminal device to access the mobile communication system through wireless means, and may be a base station NodeB, an evolved base station (evolved NodeB, eNB), a transmission reception point (transmission reception point, TRP), the next generation NodeB (gNB) in the 5G mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc. In the embodiment of the present application, the device used to realize the function of the network device may be a network device; it may also be a device capable of supporting the network device to realize the function, such as a chip system, and the device may be installed in the network device or connected with the network device Matching is used. In this embodiment of the present application, description may be made by taking an apparatus that implements a function of a network device as a network device as an example. The embodiment of the present application does not limit the specific technology and specific equipment form adopted by the radio access network equipment.

Wireless access network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, drones, balloons and satellites in the air. The embodiments of the present application do not limit the application scenarios of the wireless access network device and the terminal device.

In this embodiment of the present application, the network device may include a scheduling device and a sending device. The scheduling device includes but is not limited to eNB and/or gNB, operator network equipment, etc., for configuring uplink and downlink resources, and/or in Generate downlink control information (downlink control information, DCI) in scheduling mode; the sending device includes but not limited to TRP or remote radio head (remote radio head, RRH), used for sending downlink signals and receiving uplink signals, downlink Signals include PDCCH, PDSCH, etc., and uplink signals include PUCCH, PUSCH, etc.

3) Uplink transmission power control, which can also be called uplink transmission power control or uplink power control, or simply referred to as power control, is for network devices to receive uplink signals with appropriate receiving power. The signal transmitted by the channel. Exemplarily, the appropriate received power means on the one hand the received power required for the uplink signal to be correctly decoded by the network device, and on the other hand means that the uplink transmit power of the uplink signal cannot be unnecessarily high, so as not to affect other uplink signals. The transmission is causing interference. Generally, the network device indicates the power used by the terminal device to send the uplink signal by indicating a power control (also referred to as power control) parameter.

Exemplarily, the power control parameters include at least one of the following power control parameters: open-loop power control parameters (meaning that the network device configures the transmission power value of the terminal device according to long-term observation results, or further determines the transmission power value according to its own measurement value), Closed-loop power control parameters (meaning that the network equipment determines the transmission power value according to the instantaneous measurement result), the target value of the transmission power, the offset of the transmission power, the reference signal index value of the path loss measurement or the adjustment value of the transmission power.

In the embodiment of the present application, when the uplink signal transmitted by the terminal equipment can be PUCCH, the power headroom report is the power headroom report of PUCCH; when the uplink signal transmitted by the terminal equipment is PUSCH, the power headroom report is a PUSCH power headroom report; when the uplink signal transmitted by the terminal device is an SRS, the power headroom report is an SRS power headroom report.

After the terminal device determines that the trigger condition for reporting the power headroom is satisfied, there are also various methods for determining the power headroom, and the following uses cases 1 to 3 as examples to illustrate.

The terminal equipment calculates the power headroom according to the power required for all data transmissions on each carrier at the moment of uplink data transmission. Moreover, the data transmission performed at the moment of uplink data transmission may include any one or more types of data transmission scheduled by the network device for new data transmission, data retransmission, or semi-static configuration of the network device. The embodiment does not specifically limit this.

In this embodiment of the application, the PH may include two types: real and virtual. The real type of PH means that there is an actual uplink transmission on a component carrier (CC), the uplink transmission includes the transmission of the data channel and the transmission of the SRS, and the data transmission may include new data transmission, previous data Repeated transmission, or any one or more of semi-statically configured data transmissions, the terminal device calculates the power headroom based on these actual data transmissions (see Case 1 and Case 3 for details). The PH of the virtual type refers to the power headroom calculated by the terminal device based on a reference format without actual uplink transmission on the CC (for details, refer to Case 2). It can be seen that compared with the virtual type, the power headroom of the real type calculated based on actual transmission is more valuable to the network device. The network device can schedule uplink resources more accurately according to the power headroom of the real type, thereby Improve uplink resource utilization.

Case 1: The power headroom is determined by the PUSCH actually transmitted. For example, taking the power control of the physical uplink shared channel (PUSCH) as an example, the uplink of the terminal device on the carrier f of the serving cell (serving cell) c Activate part of the bandwidth (bandwidth part, BWP) b to send PUSCH to the network device, then you can determine the power headroom of the PUSCH in the sending opportunity i as an example, the power headroom satisfies the formula (1):

in,

It can be regarded as an open-loop power control parameter, and f _{b, f, c(i, l)} can be regarded as a closed-loop power control parameter.

_PCMAX,f,c(i) is the maximum transmission power of PUSCH on the carrier f of the serving cell c configured by the terminal device.

P _{O_PUSCH,b,f,c} (j) and α _b,f,c can be collectively referred to as the target (expected) received power, j∈{0,1,...,J-1}, the value of this parameter can be The network device indicates or configures the terminal device through signaling (such as radio resource control (radio resource control, RRC) signaling, system message, or DCI, etc.); wherein, the network device can configure multiple POs for the terminal device to indicate (can be regarded as the target value of transmission power) and α (can be regarded as the offset of transmission power) parameter set set, the terminal device can according to the current transmission mode (transmission mode includes initial access transmission, DCI-based data scheduling transmission Or based on the RCC data scheduling transmission, etc.) and the indication of the SRI field (if any), determine the number j of the parameter set used to transmit the PUSCH, thereby determining the PO and α used to transmit the PUSCH according to the number _j of the parameter set. For example, the network device can configure each parameter set for the terminal device through RRC signaling, and each parameter set includes the identifier (also called index or number, etc.) j, _PO and α values of the parameter set.

When multiple power control parameter sets are configured and the DCI for scheduling PUSCH includes the SRI field, the terminal device can determine the parameter set used for sending the PUSCH indicated by the SRI field in the DCI according to the mapping relationship between the SRI and the parameter set. For example, the mapping relationship between the SRI and the parameter set can be configured through RRC signaling. The SRI field is used to select the beam of the PUSCH, which is reflected in the fact that when the network device is configured with multiple sounding reference signal (SRS) resources, one or more SRS resources (indicated by the SRI field) need to be selected (indicated by the SRI field) when scheduling the PUSCH to represent For the PUSCH beam, in this way, different parameter sets are indicated by indicating different values in the SRI field, which can enable different PUSCH beams to use independent parameter sets to increase transmission performance. Take the SRS resource number selected by SRI as an example. The number of SRS resource numbers indicates the number of layers used for PUSCH transmission. When the SRI is different, the SRS resource numbers indicated are different, and the values of _PO and α in the corresponding parameter set are also different. .

When multiple parameter sets are configured and the DCI for scheduling PUSCH does not include the SRI field, or when the DCI for scheduling PUSCH adopts a simplified DCI format, the number of the default parameter set j=2, and the terminal device can use the number of the first parameter set The corresponding parameter set determines the values of _PO and α used to transmit the PUSCH.

α _{b, f, c} (j) is a partial path loss compensation factor, the range is (0, 1], the value of this parameter can be that the network device is a terminal device through signaling (such as RRC signaling, system information, or DCI, etc.) Indicated or configured.

is the number of RBs occupied by the PUSCH at the PUSCH transmission opportunity i on the uplink activation part bandwidth (Bandwidth part) b of the carrier f of the serving cell (serving cell) c, that is, the number of resource blocks (resource blocks, RBs) to which the PUSCH is mapped, Either the number of RBs used for sending the PUSCH, or the number of RBs occupied by sending the PUSCH, the value of this parameter may be indicated or configured by the network device for the terminal device through signaling (such as RRC signaling or DCI).

μ is the subcarrier spacing configuration of the PUSCH. Exemplarily, the subcarrier spacing corresponding to different values of μ is shown in Table 1.

Table 1

μmu	Δf＝2 ^μ·15[kHz] Δf＝ ^2μ ·15[kHz]
00	1515
11	3030
22	6060
33	120120

4

240

PL _b,f,c (q _d ) is an estimated value of path loss, which is used for path loss compensation. The parameter value may be the path loss estimated by the terminal device according to the reference signal index value (or downlink parameter signal) q _d . When multiple path loss reference signal index values _qd are configured, the network device can further configure a mapping between multiple reference signal index values _qd (also referred to as path loss measurement reference signal index values) and the value of the SRI field relationship, the terminal device can determine which reference signal index value q _d (or the reference signal corresponding to the reference signal index value) is used to determine the path loss estimation value of the PUSCH according to the value of the SRI field. When the DCI for scheduling the PUSCH adopts a simplified DCI format (also called a compact DCI format), and the physical uplink control channel (physical uplink control channel, PUCCH) resource configuration information includes beam indication information, the terminal device can according to the included beam indication information The minimum reference signal index value q _d in the PUCCH resource configuration information of the PUCCH resource configuration information determines the estimated value of the PUSCH path loss. When the DCI for scheduling PUSCH adopts the simplified DCI format and the PUCCH resource configuration information does not include beam indication information, or the DCI for scheduling PUSCH does not include the SRI field, the terminal device can determine the PUSCH according to the multiple configured reference signal index values _qd The estimated value of the path loss.

Δ _TFb,f,c (i) is a parameter value related to the modulation mode and channel coding rate of PUSCH transmission, for example, it can be related to the type of information carried by PUSCH (for example, including carrying uplink shared channel (UL-SCH) data information, or channel state information (channel state information, CSI) information, etc.), the location or quantity of physical resources occupied by the PUSCH, and the like.

f _{b, f, c} (i, l) are the power adjustment values determined according to the transmit power control (transmit power control, TPC) command of the closed-loop power control (power control) process ^l , and _l can also be understood as the power control adjustment state index value. The DCI sent by the network device may carry a TPC field, and the TPC field is used to indicate the parameter value of δ _PUSCH,b,f,c (such as the transmission power adjustment amount δ _PUSCH,b,f,c ). The terminal device may determine the value of f _{b, f, c (i, l) according to the determined value of δ PUSCH,b} _{, f, c} . When the DCI for scheduling PUSCH is a terminal equipment-specific (UE specific) DCI format, only the specific terminal equipment configured detects the DCI for scheduling PUSCH, and adjusts the state index according to the value of the SRI field in the DCI for scheduling PUSCH and the power control The mapping relationship of the value l determines the δ _PUSCH,b,f,c (i,l) corresponding to the PUSCH. When the DCI for scheduling PUSCH is a common (common) DCI format, the DCI for scheduling PUSCH carries a power control adjustment state index value 1 with a value of 0 or 1; the terminal device only accumulates the TPC with the same value 1 according to the value of the SRI field instruct. When the DCI for scheduling the PUSCH adopts a simplified DCI format, or the DCI for scheduling the PUSCH does not include the SRI field, the power control adjustment state index value l=0.

When δ _PUSCH,b,f,c are accumulated values,

in,

Indicates to accumulate δ _PUSCH,b,f,c indicated by all TPC signaling received within a period of time before the sending opportunity i. When the value of the SRI field received by the network device is associated with the power control adjustment state index value l, the terminal device resets f _{b, f, c} (k, l)=0, k=0,1,...,i. When δ _{PUSCH, b, f, c} are absolute values, f _{b, f, c} (i, l) = δ _{PUSCH, b, f, c} (i, l).

Case 2: The terminal can also determine the power headroom based on the reference PUSCH format, for example, the PH calculated based on the reference PUSCH format satisfies formula (2):

Among them, the value of P _CMAX,f,c satisfies the following range:

P _{CMAX_L,f,c} ≤P _CMAX,f,c ≤P _{CMAX_H,f,c} ;

P _{CMAX_L,f,c} ＝MIN{P _EMAX,c –ΔT _C,c ,(P _PowerClass –ΔP _PowerClass )–MAX(MAX(MPR _c +ΔMPR _c ,A-MPR _c )+ΔT _IB,c +ΔT _{C ,c} +ΔT _RxSRS ,P-MPR _c )};

P _{CMAX_H,f,c} ＝MIN{P _EMAX,c ,P _PowerClass –ΔP _PowerClass }

Among them, P _EMAX,c is configured by the p-Max cell or the additionalPmax field in the NR-NS-PmaxList cell; P _PowerClass is the maximum UE power, and the value can be 23dBm, 26dB or 29dBm, 31dBm; ΔT _{IB, c} represents the extra power tolerance, the value can be 0dB; ΔT _{C, the value of c} can be 1.5dB or 0dB; MPR represents the maximum power reduction allowed (Allowed Maximum Power Reduction), A-MPR represents the additional maximum power reduction (Additional Maximum Power Reduction); P-MPR stands for Power Management Maximum Power Reduction.

In the calculation of , it may be assumed that the parameters of the maximum power corresponding to the reference PUSCH satisfy: MPR=0dB, A-MPR=0dB, P-MPR=0dB.TC=0dB. P _{O_PUSCH,b,f,c} (j) and α _b,f,c (j) are the default values of the reference PUSCH configured by the network device, and the path loss reference of the reference PUSCH in PL _b,f,c (q _d ) The signal index is 0, l=0.

Case 3: The terminal can also determine the power headroom based on the path loss reference signal of PUSCH. For example, the PH calculated based on the path loss reference signal of PUSCH satisfies formula (3):

in

In the calculation of , it can be assumed that MPR=0dB, A-MPR=0dB, P-MPR=0dB.TC=0dB.P _{O_PUSCH,b,f,c} (j) and α _b,f,c (j) are network devices The configured default value, the path loss reference signal in PL _b,f,c (q _d ) may be the path loss reference signal corresponding to PUSCH, l=0.

The technical solution of the embodiment of the present application can be applied to various communication systems, for example: the fourth generation (4th Generation, 4G), 4G system includes the system long term evolution (long term evolution, LTE) system, global interconnected microwave access (worldwide interoperability for microwave access (WiMAX) communication system, future fifth generation (5th Generation, 5G) system, such as new generation wireless access technology (new radio access technology, NR), and future communication system, such as 6G system, etc., as long as The communication system can realize signal transmission. The technical solutions of the embodiments of the present application can be applied to low-frequency (less than 6 GHz) scenarios, and can also be applied to high-frequency (above 6 GHz) scenarios. The technical solutions of the embodiments of the present application are also applicable to scenarios of homogeneous networks and heterogeneous networks, and are also applicable to frequency division multiplexing (FDD) and time division multiplexing (TDD) systems. The technical solution of the embodiment of the present application may also be applicable to a single-transmission reception point (Single-TRP) or a multi-transmission reception point (Multi-TRP), or a derivative scenario of Single-TRP and Multi-TRP. In addition, in the embodiment of the present application, the type and quantity of network equipment are not limited, such as macro base station and macro base station, micro base station and micro base station, and coordinated multi-point transmission between macro base station and micro base station.

For example, a communication system as shown in FIG. 1 can be used. The communication system is composed of network equipment (including network equipment 1 and network equipment 2) and terminal equipment. In this communication system, network equipment 1 can configure uplink and downlink resources, For sending downlink signals and receiving uplink signals, the terminal device can receive downlink signals and/or send uplink signals.

For another example, as shown in FIG. 2 , it is a schematic structural diagram of a mobile communication system applied by an embodiment of the present application. As shown in FIG. 2 , the mobile communication system includes a core network device 210 , a radio access network device 220 and at least one terminal device (such as terminal device 230 and terminal device 240 in FIG. 2 ). The terminal device is connected to the wireless access network device in a wireless manner, and the wireless access network device is connected to the core network device in a wireless or wired manner. Alternatively, the mobile communication system includes core network equipment, at least two radio access network equipment and at least one terminal equipment, as shown in FIG. 3 . The core network equipment and the wireless access network equipment can be independent and different physical equipment, or the functions of the core network equipment and the logical functions of the wireless access network equipment can be integrated on the same physical equipment, or it can be a physical equipment It integrates some functions of core network equipment and some functions of radio access network equipment. Terminal equipment can be fixed or mobile. FIG. 2 is only a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 2 . The embodiments of the present application do not limit the number of core network equipment, radio access network equipment, and terminal equipment included in the mobile communication system.

Cooperative reception and processing of PUSCH by multiple network devices can improve the reliability of PUSCH transmission. As shown in Figure 4, two network devices (network device 1 and network device 2) cooperate to receive and process PUSCH, and one of the network devices sends and schedules PUSCH DCI, both network devices can receive the PUSCH at the RB position indicated by the DCI, and the PUSCH can be sent in a time domain repetition manner. PUSCH uses different precoding methods to repeatedly send the same transport block (TB) at different times, and the network device can notify the terminal device to send the repetition times of PUSCH in the time domain (also called symbol set), and also The terminal device may be notified of the precoding mode adopted for each repeated transmission. Taking sending repeated data twice on the PUSCH as an example, the two repeated data are sent on the first PUSCH repetition and the second PUSCH repetition respectively.

The precoding method can be understood as beamforming (beamforming), that is, when the transmitting end has multiple transmitting antennas, when transmitting the same signal, the amplitude or phase weighting is generated between the transmitting antennas, so that the transmitted signal is transmitted in the transmission space. There are directional beams formed in , that is, different precoding methods can refer to the use of different beams (corresponding to the analog precoding mechanism, the terminal device can change the beam by changing the phase of the phase shifter), antenna port or antenna virtualization method (corresponding to digital precoding mechanism, terminal equipment can generate different beams through digital weights between different antennas), thereby improving transmission efficiency.

For example, the precoding mode 1 is beneficial to the reception of the network device 1, and the precoding mode 2 is beneficial to the reception of the network device 2. The network device can notify the terminal device to use the first beam corresponding to the precoding mode 1 when sending the first PUSCH repetition, and the terminal When the device transmits the second PUSCH repetition, it uses the second beam corresponding to the precoding mode 2 for transmission.

For terminal equipment, different precoding methods correspond to different beams. For example, SRI=0 corresponding to symbol set 0, SRI=1 corresponding to symbol set1, and PUSCH repetitions corresponding to different beams (on different symbol sets) can use independent The power control parameter, that is, the terminal device can determine the transmission power value adopted by the PUSCH at different times (symbol set) according to the mapping relationship between the SRI and the power control parameter.

In the scenario of multi-TRP cooperation, the PUSCH repetitions corresponding to two different beams are repeatedly transmitted on the same serving cell, and the transmission powers of the PUSCH repetitions corresponding to the two different beams may be different. At this time, considering that the network device schedules the uplink power of the first PUSCH repetition and the second PUSCH repetition for the terminal device, the terminal device may need to report the power headroom of the PUSCH repetitions corresponding to different beams. However, the current method for the terminal equipment to report the power headroom is to determine and report the power headroom based on the PUSCH on a serving cell, and it is impossible to repeatedly determine and report the respective power headrooms for the PUSCH corresponding to each beam. In order for the network device to better schedule uplink power of the terminal device, an embodiment of the present application provides a communication method, which implements reporting of multiple power headrooms corresponding to multiple beams, and improves the performance of the network device for scheduling uplink power.

example one

Considering the scenario where repeated data may be sent (scenario 1), in order to ensure the transmission performance of the PUSCH, this application proposes a communication method. As shown in FIG. 5 , it is a schematic flowchart of a communication method provided by the embodiment of the present application. The method specifically includes the following steps:

S501: The terminal device acquires uplink transmission resources.

Among them, the uplink transmission resources obtained by the terminal device may include multiple types. For example, the terminal device may obtain uplink transmission resources based on network device scheduling, or obtain uplink transmission resources through the resource pool itself. Uplink transmission resources are obtained in a configured manner. The following uses an example of network device scheduling to illustrate.

In a possible implementation manner, assuming that the first network device is a network device that schedules uplink transmission resources of the terminal device as an example, the first network device may configure uplink transmission resources for the terminal device. For example, the first network device may send the first configuration information to the terminal device. Wherein, the first configuration information is used to indicate uplink transmission resources of the terminal equipment. In the following, the uplink transmission resource is PUSCH as an example for description. The uplink transmission resource configured for the terminal device may include PUSCH repetition for sending repeated data. The method a1 and the method a2 are illustrated below as examples.

Mode a1, the uplink transmission resource may include at least one PUSCH repetition, for example, taking repeated transmission twice as an example, the uplink transmission resource may include: the first PUSCH repetition and the second PUSCH repetition, the first PUSCH repetition and the second PUSCH Send the same transport block repeatedly.

In some embodiments, the beam corresponding to the first PUSCH repetition may be the first beam, for example, the uplink power control parameter corresponding to the first PUSCH repetition corresponds to the power control parameter of the first beam. The beam corresponding to the second PUSCH repetition may be the second beam. For example, the uplink power control parameter corresponding to the second PUSCH repetition corresponds to the power control parameter of the second beam.

In a possible implementation manner, the first configuration information sent by the first network device to the terminal device may be used to indicate configuration information of the first PUSCH repetition and configuration information of the second PUSCH repetition. After obtaining the first configuration information, the terminal device may determine the first PUSCH repetition and the second PUSCH repetition according to the configuration information of the first PUSCH repetition and the configuration information of the second PUSCH repetition.

In some embodiments, the first configuration information may further include configuration information of the first PUSCH repetition and configuration information of the second PUSCH repetition. That is, the first network device may send configuration information of the first PUSCH repetition and configuration information of the second PUSCH repetition to the terminal device.

Therefore, after obtaining the configuration information of the first PUSCH repetition and the configuration information of the second PUSCH repetition, the terminal device can determine the first PUSCH repetition and the first PUSCH repetition associated with the first PUSCH repetition based on the configuration information of the first PUSCH repetition. The beam is determined based on configuration information of the second PUSCH repetition, and a second beam associated with the second PUSCH repetition is determined. Or, based on the configuration information of the first PUSCH repetition, the terminal device may determine the first power control parameter corresponding to the first PUSCH repetition (for example, the basic value P0 of the open-loop power control parameter corresponding to the first beam, the path loss compensation factor alpha, the path Loss reference signal ID, etc.), the terminal device can determine the second power control parameter corresponding to the second PUSCH repetition based on the configuration information of the second PUSCH repetition (for example, the open-loop power control parameter basic value P0 corresponding to the second beam, path loss compensation factor alpha, path loss reference signal ID, etc.).

Correspondingly, when sending the transport block on the first PUSCH repetition in the first time domain resource, the terminal device may use the beam direction of the first beam to send the transport block to the first network device. The first time domain resource may be a transmission opportunity corresponding to the first PUSCH repetition, and the first time domain resource may be determined by the terminal device based on the DCI indication sent by the first network device. When sending the transport block on the second PUSCH repetition in the second time domain resource, the terminal device may send the transport block to the second network device by using the beam direction of the second beam. The second time domain resource may be a transmission opportunity corresponding to the second PUSCH repetition, and the second time domain resource may be determined by the terminal device based on the DCI indication sent by the first network device.

In manner a2, the first configuration information may include at least one SRS resource set, and the SRS resource in each SRS resource set corresponds to one PUSCH repetition.

Still taking repeated sending twice as an example, the first configuration information may include: configuration information of the first SRS resource set and configuration information of the second SRS resource set. The first SRS resource set and the second SRS resource set correspond to different beams in the same serving cell. For example, the first SRS resource set and the second SRS resource set are resources in serving cell #1 (first serving cell).

The first set of SRS resources may be associated with the first beam of the first serving cell. Therefore, the configuration corresponding to the first PUSCH repetition may be related to the configuration of the first beam, or the uplink power control parameter corresponding to the first PUSCH repetition is related to the power control parameter of the first beam.

The same transport block is correspondingly sent on the first PUSCH repetition and the second PUSCH repetition. The second set of SRS resources may be associated with the second beam of the first serving cell. Therefore, the configuration corresponding to the second PUSCH repetition may be related to the configuration of the second beam, or the uplink power control parameter corresponding to the second PUSCH repetition is related to the power control parameter of the second beam.

For example, as shown in FIG. 6, the uplink authorization resources configured by the first network device for the terminal device include a first SRS resource set #1 and a second SRS resource set #2, wherein the first SRS resource set # 1 includes the first PUSCH repetition, the first PUSCH repetition corresponds to the first beam, and the path loss reference signal index (path loss reference signal identification, PL RS ID) corresponding to the first beam can be PL RS ID#1, the second SRS resource set set#2 includes the second PUSCH repetition, the second PUSCH repetition corresponds to the second beam, and the path loss reference signal index corresponding to the second beam may be PL RS ID#2.

In a possible implementation manner, the first network device may send configuration information of the first SRS resource set and configuration information of the second SRS resource set to the terminal device.

Furthermore, the terminal device can obtain the first beam associated with the first SRS resource set according to the configuration information of the first SRS resource set, that is, the terminal device can obtain the first beam indicated in the first information. Alternatively, the terminal device may obtain the first power control parameter indicated in the first information according to the configuration information of the first SRS resource set. Optionally, the terminal device may also obtain corresponding precoding information according to configuration information of the first SRS resource set. Therefore, the terminal device can use the beam direction of the first beam to send the first PUSCH repetition to the first network device at the transmission opportunity corresponding to the first SRS resource according to the configuration information of the first SRS resource set or corresponding precoding information. transmission block.

The terminal device may obtain the second beam associated with the second SRS resource set according to the configuration information of the second SRS resource set, that is, the terminal device may obtain the second beam indicated in the first information. Alternatively, the terminal device may obtain the second power control parameter indicated in the first information according to the configuration information of the second SRS resource set. Optionally, the terminal device may also obtain corresponding precoding information according to configuration information of the second SRS resource set. Therefore, the terminal device can use the beam direction of the second beam to send the second PUSCH repetition to the second network device at the transmission opportunity corresponding to the second SRS resource according to the configuration information of the second SRS resource set or corresponding precoding information. transmission block.

Correspondingly, when obtaining the first configuration information, the terminal device may also obtain uplink scheduling signaling or configuration scheduling information, so as to determine to send data on the uplink transmission resource. For example, the first network device may send the first indication information to the terminal device. In combination with manner a1 and manner a2, the first indication information may be used to instruct the terminal device to send the first PUSCH repetition and the second PUSCH repetition to the first network device in the first serving cell.

It should be noted that the first indication information may be sent simultaneously with the first configuration information, or may be sent separately. For example, the first indication information and the first configuration information may be carried and sent in the same signaling, or may be carried and sent in different signalings, which is not limited here.

Optionally, the first network device may also send fourth indication information to the terminal device, where the fourth indication information is used to instruct the terminal device to report the first power headroom and the second power headroom in the power headroom report MAC CE.

Alternatively, the first network device may also send fourth indication information to the terminal device, where the fourth indication information is used to instruct the terminal device to report the first field and the second field in the power headroom report MAC CE. The specific structures of the first field and the second field can be referred to below, and will not be repeated here.

Correspondingly, after receiving the fourth indication information, the terminal device may perform S503 and S504 after performing S502. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in an existing manner. Of course, the terminal device and the first network device can also negotiate in other ways whether to use the structure of the power headroom report MAC CE in the embodiment of the present application to report the power headroom, which is not limited here.

Optionally, the terminal device may also report capability information to the first network device, where the capability information may be used to indicate the capability of the terminal device to support PUSCH repetition, or the capability information may also be used to indicate that the terminal device supports Report the first power headroom and the second power headroom in the headroom report MAC CE, or, the capability information can also be used to indicate that the terminal device supports the terminal device to report the first field and the second power headroom in the power headroom report MAC CE field.

Furthermore, the first network device may determine that the MAC CE of the power headroom report reported by the terminal device has a structure including the first field and the second field. Alternatively, the first network device and the terminal device may also negotiate in other ways, report the first field and the second field in the power headroom report MAC CE, or report the first power headroom and the first field in the power headroom report MAC CE Second power headroom.

Optionally, before the terminal device reports the capability information, the first network device may also send a capability request message to the terminal device to request the terminal device to report the capability information. In order to save the signaling overhead of the terminal equipment.

S502: The terminal device triggers to report a power headroom report.

In conjunction with Scenario 1, the network device may send uplink scheduling signaling to the terminal device to instruct the terminal device to send the same transport block on the first PUSCH repetition and the second PUSCH repetition. For example, the terminal device may acquire first indication information, where the first indication information is used to instruct the terminal device to send the first PUSCH repetition and the second PUSCH repetition to the first network device and the second network device respectively.

At this time, the terminal device may determine whether to report the power headroom based on the condition for triggering the report of the power headroom.

In this embodiment of the present application, the following seven trigger conditions can be defined. When at least one of the following seven trigger conditions is met, the terminal device can trigger the report of the power headroom, that is, the terminal device sends a power headroom report.

The first trigger condition: a PHR prohibition timer (prohibitPHR-Timer) expires, and the path loss value of the serving cell is greater than or equal to a preset threshold value. The threshold may be phr-Tx-PowerFactorChange dB.

In the embodiment of the present application, the prohibitPHR-Timer timer can be set on the terminal device side. When the prohibitPHR-Timer times out or times out, and the path loss value of the serving cell is greater than the threshold value, the terminal device can report the power headroom report to the network device through the data channel.

In an example of the first trigger condition, the path loss value of the serving cell may be configured by the network device for the terminal device, and the terminal device may restart the prohibitPHR-Timer timer after reporting the power headroom report to the network device .

Optionally, before the terminal device determines whether the trigger condition is satisfied, the terminal device may also obtain first trigger information and second trigger information, where the first trigger information includes a PHR transmission prohibition timer and/or a PHR cycle timer, and the second The second trigger information includes the change value of the PHR transmission power factor. Furthermore, the terminal device may determine whether the trigger condition is met based on the first trigger information and the second trigger information.

In a possible implementation manner, still taking the first network device scheduling the terminal device as an example, the first network device may send the first trigger information and the second trigger information to the terminal device. It should be noted that the first trigger information and the second trigger information may be sent separately, or together, or together with at least one of the first configuration information, first information, and second information , without limitation here.

In scenario 1, that is, a scenario in which multiple network devices coordinate transmission, the second trigger information may further include PHR transmission power factor change values corresponding to multiple network devices. For example, in a scenario where the first network device and the second network device cooperate to transmit, the second trigger information may include: a first PHR transmission power factor change value and a second PHR transmission power factor change value. Wherein, the first PHR transmission power factor change value corresponds to the first network device, and the second PHR transmission power factor change value corresponds to the second network device.

In some embodiments, the change value of the first PHR transmission power factor may be the threshold value of the path loss of the first serving cell corresponding to the first network device, and the terminal device may Whether the loss change value exceeds the first PHR transmission power factor change value and whether the PHR transmission prohibition timer expires, and determine whether the first serving cell (or first beam) corresponding to the first network device meets the conditions for triggering and reporting the power headroom report. Alternatively, the terminal device may determine whether the change value of the path loss corresponding to the first PUSCH repetition (or the path loss reference signal corresponding to the first beam) exceeds the change value of the first PHR transmission power factor and whether the PHR transmission prohibition timer expires, and determine whether the first Whether the PUSCH repetition satisfies the condition of triggering and reporting the power headroom report.

The second PHR transmission power factor change value may be the threshold value of the path loss of the first serving cell corresponding to the second network device, and the terminal device may determine whether the path loss change value of the first serving cell corresponding to the second network device exceeds the threshold value of the second PHR transmission power factor change value. 2. Whether the change value of the PHR transmission power factor and the PHR transmission prohibition timer expire, and determine whether the first serving cell corresponding to the second network device satisfies the condition for triggering the reporting of the power headroom report. Alternatively, the terminal device may judge the second PUSCH according to whether the path loss change value of the second PUSCH repetition (or the path loss reference signal corresponding to the second beam) exceeds the second PHR transmission power factor change value and whether the PHR transmission prohibition timer expires. Whether the repetition meets the condition of triggering and reporting the power headroom report.

For example, as shown in FIG. 6 , the terminal device may determine that the power headroom report is triggered on the first PUSCH repetition according to the path loss reference signal of the first serving cell or the first beam meets the conditions for triggering the report of the power headroom report. volume report.

The second trigger condition: the PHR periodic timer (periodicPHR-Timer) times out.

In the embodiment of the present application, a periodicPHR-Timer timer may be set on the terminal device side. When the periodicPHR-Timer times out or after it times out, the terminal device can report the power headroom report to the network device through the data channel. Further, after the terminal device reports the power headroom report to the network device, the periodicPHR-Timer timer may be restarted. For the second trigger condition above, it can be considered that the terminal device periodically reports the power headroom report to the network device.

The third trigger condition: when reconfiguring PHR-related parameters or timers.

In the embodiment of this application, if the terminal device receives the first information sent by the network device, and the first information is used for reconfigured PHR-related parameter values or timer values, then the terminal device can send The network device reports a power headroom report. Wherein, the first information may be a high-level configuration or a reconfiguration power headroom reporting function.

The fourth trigger condition: an uplink secondary serving cell (secondary cell, SCell) configured for the terminal device is activated.

In the embodiment of the present application, the secondary serving cell and the primary serving cell may be configured for the terminal device, and when the secondary serving cell is activated, the terminal device may report a power headroom report to the network device. For example, when any MAC entity activates a secondary cell, and the first activated downlink BWP is not a dormant BWP, the terminal device may report a power headroom report to the network device.

The fifth trigger condition: adding a primary and secondary cell (primary sCell, PSCell) for the terminal device.

In this embodiment of the present application, when a PSCell is added to a terminal device, the terminal device may be triggered to report a power headroom report.

The sixth trigger condition: switching occurs in the active bandwidth part.

For example, when a dormant BWP is switched to a non-dormant BWP in any MAC entity, the terminal device may report a power headroom report to the network device.

The seventh trigger condition: the prohibitPHR-Timer expires, and the power management maximum power reduction (P-MPR) is greater than or equal to the threshold value, and the P-MPR may also be called a power fallback value.

In this embodiment of the application, for any SCell, when the prohibitPHR-Timer expires or expires, and the power backoff value is greater than or equal to the threshold value, the terminal device can report the power headroom report to the network device through the data channel. Wherein, the threshold value of the power backoff value may be configured by the network device for the terminal device. Further, after the terminal device reports the power headroom report to the network device, it can restart the prohibitPHR-Timer timer.

S503: The terminal device determines the first power headroom and the second power headroom.

Wherein, the first power headroom is determined according to the first PUSCH repetition, and the second power headroom is determined according to the second PUSCH repetition.

There may be multiple manners for the terminal device to determine the first power headroom and the second power headroom, and the manners A1 to A3 are exemplified below.

In manner A1, the terminal device may determine the first power headroom based on the first PUSCH repetition, and determine the second power headroom based on the second PUSCH repetition.

In combination with Scenario 1, it is considered that the terminal device determines the first PUSCH repetition and the second PUSCH repetition. Therefore, the terminal device may determine the first power headroom based on the first PUSCH repetition, and determine the second power headroom based on the second PUSCH repetition.

In some embodiments, the terminal device may determine the power headroom of the first PUSCH repetition according to formula (1) in case 1, and at least one of the first beam, the first power control parameter, or the first PUSCH repetition, And use the power headroom as the first power headroom. According to the formula (1) in case 1, and at least one of the second beam, the second power control parameter, or the second PUSCH repetition, determine the power headroom of the second PUSCH repetition, and use the power headroom as the second power headroom.

For example, the first power headroom may be determined based on the first PUSCH repetition corresponding to the first beam, and the second power headroom may be determined based on the second PUSCH repetition corresponding to the second beam.

In manner A2, the terminal device may also determine the power headroom based on the reference PUSCH.

In a possible implementation manner, the terminal device may determine the power headroom based on the formula (2) in the second case.

In some embodiments, the terminal device may determine the power headroom of the first PUSCH repetition according to formula (1) in case 1, and use the power headroom as the first power headroom. The power headroom of the reference PUSCH is determined according to the formula (2) in the second case, and the power headroom is used as the second power headroom.

In some other embodiments, the terminal device may determine the power headroom of the second PUSCH repetition according to the formula (1) in the first case, and use the power headroom as the second power headroom. The power headroom of the reference PUSCH is determined according to the formula (2) in the second case, and the power headroom is used as the first power headroom.

In manner A3, the terminal device may also determine the power headroom based on the path loss reference signal corresponding to the beam.

In a possible implementation manner, the power headroom may be determined based on the formula (3) in the third case.

In some embodiments, the terminal device may determine the power headroom of the first PUSCH repetition according to formula (1) in case 1, and use the power headroom as the first power headroom. The power headroom of the path loss reference signal corresponding to the second beam is determined according to the formula (3) in the third case, and the power headroom is used as the second power headroom.

In some embodiments, the terminal device may determine the power headroom of the second PUSCH repetition according to formula (1) in case 1, and use the power headroom as the second power headroom. The power headroom of the path loss reference signal corresponding to the first beam is determined according to the formula (3) in the third case, and the power headroom is used as the first power headroom.

S504: The terminal device reports the first power headroom and the second power headroom.

Wherein, in combination with scenario 1, the terminal device may send the first power headroom and the second power headroom to the first network device on the first PUSCH repetition. The terminal device may send the first power headroom and the second power headroom to the second network device on the second PUSCH repetition.

In a possible implementation manner, the first power headroom and the second power headroom may be carried on the power headroom report MAC CE and sent. The power headroom report MAC CE may be transmitted on the first PUSCH repetition and the second PUSCH repetition.

Wherein, triggering the power headroom report may be related to the first PUSCH repetition or the second PUSCH repetition. For example, as shown in FIG. 6, after determining that the power headroom report is triggered, the terminal device determines that the transmittable uplink transmission resource is the first PUSCH repetition and the second PUSCH repetition according to the uplink grant scheduling signaling (for example, the first indication information). Two PUSCH repetitions are taken as an example. At this time, the terminal device can send a power headroom report MAC CE to the first network device and the second network device respectively on the first PUSCH repetition and the second PUSCH repetition. The power headroom report MAC CE can be Carrying a first power headroom and a second power headroom.

In some embodiments, the power headroom report MAC CE may include a first field and a second field. Wherein, the first field may be used to indicate the first power headroom, and the second field may be used to indicate the second power headroom. For example, the first field may be used to indicate the power headroom level of the reported first power headroom. The second field may be used to indicate the power headroom level of the reported second power headroom. Exemplarily, as shown in FIG. 7a, the length of the first field (PH1-1) may be 6 bits, and the length of the second field (PH2-1) may be 6 bits. Optionally, the power headroom report MAC CE may also include a maximum power indication field corresponding to the first power headroom, which may be used to indicate the maximum power value of the first power headroom, for example, P _{CMAX, f, c1} . The power headroom report MAC CE may also include a maximum power indication field corresponding to the second power headroom, which may be used to indicate the maximum power value of the second power headroom, for example, P _CMAX,f,c,1 .

The power headroom report MAC CE may also include a P field corresponding to the first power headroom, and the setting of the value of the P field needs to meet the (Maximum Permissible Exposure, MPE) requirement, or, the P field is used to indicate whether the power headroom A power fallback was performed. The power headroom report MAC CE may also include a V field corresponding to the first power headroom, and the V field indicates whether the PH value is calculated based on actual transmission or reference PUSCH. For example, when the V field is 1, it can be used to indicate that the PH value is calculated based on actual transmission. When the V field is 0, it can be used to indicate that the PH value is calculated based on the reference PUSCH. In the example shown in Figure 7a The first power headroom (PH1-1) of the first PUSCH repetition corresponding to the first beam may be calculated based on the first PUSCH repetition, therefore, the V field corresponding to the first power headroom may be 1. The second power headroom (PH2-1) of the second PUSCH repetition corresponding to the second beam may be calculated based on the second PUSCH repetition, therefore, the V field corresponding to the second power headroom may be 1.

Optionally, the power headroom report MAC CE may include a set of indication fields. The indication field set can be used to indicate whether there is a PHR report on each carrier, that is, as shown in FIG. . Whether the serving cells C1-C3 have PHR reports. For the second network device, four indication fields may be included, which are respectively used to indicate whether the primary serving cell R and serving cells C1-C3 of the second network device have PHR reports. Assume that the R and Ci fields indicate whether the PHR corresponding to the primary serving cell and serving cell i exists. For example, when the indication field is 1, it can indicate that the serving cell corresponding to the indication field has reported a PHR. For example, when the indication field is 0, It may indicate that the serving cell corresponding to the indication field has not reported the PHR.

With reference to the example in Figure 6, the primary serving cell R in the power headroom report can be the first serving cell. Therefore, in the power headroom report MAC CE, the value of the indication field R is 1, and the values of other indication fields C1-C3 is 0.

Considering the situation that multiple power headrooms can be included in the power headroom report MAC CE, the following

methods

1 and 2 are used to illustrate the possible ways of sorting the power headroom and indication fields in the power headroom report MAC CE.

Mode 1, the multiple indication fields in the indication field set may be arranged in ascending order according to the serving cell index ServCellIndex corresponding to the indication field, and then arranged in ascending order according to the beam index corresponding to the indication field. Alternatively, it may first arrange in ascending order according to the serving cell index corresponding to the indication field, and then arrange in ascending order according to the index of the network device corresponding to the indication field. For another example, the serving cell index corresponding to the indication field may be arranged in ascending order first, and then arranged in ascending order according to the beam index (or path loss reference signal index) corresponding to the indication field.

Correspondingly, the sorting manner of the power headroom may be: first arrange in ascending order according to the serving cell index corresponding to the power headroom, and then arrange in ascending order according to the beam index (or path loss reference signal index) corresponding to the power headroom. Alternatively, the serving cell index corresponding to the power headroom may be arranged in ascending order first, and then the beam index corresponding to the power headroom may be arranged in ascending order. Alternatively, the serving cell index corresponding to the power headroom may be arranged in ascending order first, and then arranged in ascending order according to the index of the network device corresponding to the power headroom.

There may also be multiple alternative implementation manners in the manner of arranging in ascending order according to the beam indexes corresponding to the power headroom. For example, in a possible implementation manner, the first field and the second field may be arranged in ascending order based on the beam index of the beam. For example, if the beam index of the first beam is earlier than the beam index of the second beam, the power headroom In the report MAC CE, it is sorted in ascending order according to the order of the first field and the second field. In another possible implementation, the first field and the second field may be arranged in ascending order based on the index of the SRS resource set, for example, the index of the first SRS resource set corresponding to the first beam is earlier than the index of the second SRS resource set corresponding to the second beam When the index of the resource set is used, the power headroom report MAC CE is arranged in ascending order according to the order of the first field and the second field. In another possible implementation manner, the first field and the second field may be arranged in ascending order based on the path reference signal index, for example, the path reference signal index of the path reference signal corresponding to the first power headroom is earlier than the path reference signal index of the second power headroom When the path reference signal index of the corresponding path reference signal is used, the power headroom report MAC CE is arranged in ascending order according to the order of the first field and the second field. In another possible implementation, the first field and the second field can be arranged in ascending order based on the index of the network equipment, for example, the index of the first network equipment is earlier than the index of the second network equipment, then the power headroom report MAC CE in ascending order according to the order of the first field and the second field.

Wherein, the manner in which the serving cell indexes corresponding to the indication field are arranged in ascending order may be R, C1, C2, and C3 in sequence. The serving cell index corresponding to the power headroom can be arranged in ascending order in order of the power headroom corresponding to the primary serving cell R, the power headroom corresponding to the serving cell C1, the power headroom corresponding to the serving cell C2, and the power headroom corresponding to the serving cell C3. quantity.

Taking the TRP index (TRP#1) of the first network device prior to the TRP index (TRP#2) of the second network device as an example, the ordering method of the indication fields can be as shown in FIG. The power headroom of a serving cell (eg, primary serving cell R) includes a first power headroom and a second power headroom. The first power headroom and the second power headroom may be carried in a power headroom field corresponding to the indication field R. For example, as shown in FIG. 7a, the first field is used to indicate the first power headroom, and the second field is used to indicate the second power headroom.

In the second manner, the multiple indication fields in the indication field set may be arranged in ascending order according to the beam index corresponding to the indication field, and then arranged in ascending order according to the serving cell index corresponding to the indication field. Alternatively, it may first be arranged in ascending order according to the index of the network device corresponding to the indication field, and then arranged in ascending order according to the index of the serving cell corresponding to the indication field. For another example, the beam indexes (or path loss reference signal indexes) corresponding to the indication fields may be arranged in ascending order first, and then the serving cell indexes corresponding to the indication fields may be arranged in ascending order.

Correspondingly, the sorting method of the power headroom may be as follows: first arrange in ascending order according to the beam index (or path loss reference signal index or network device index or SRS resource set index) corresponding to the power headroom, and then sort according to the service The cell indexes are sorted in ascending order.

Still taking the TRP index (TRP#1) of the first network device prior to the TRP index (TRP#2) of the second network device as an example, the ordering method of the indication fields can be as shown in FIG. 7b, that is, TRP# Primary serving cell R of 1, primary serving cell R of TRP#2, serving cell C1 of TRP#1, serving cell C1 of TRP#2, serving cell C2 of TRP#1, serving cell C2 of TRP#2, TRP# The serving cell C3 of 1 and the serving cell C3 of TRP#2.

Considering that the power headroom of the first serving cell (for example, the primary serving cell R) in FIG. 6 includes a first power headroom and a second power headroom. When there is only one serving cell in power headroom sorting, it can be arranged in ascending order based on the beam index, taking the first beam index prior to the second beam index as an example, as shown in Figure 7b, the first power headroom and the second power headroom The headroom may be carried in the power headroom field corresponding to the indication field R. The first field is used to indicate the first power headroom (PH1-1), and the second field is used to indicate the second power headroom (PH2-1).

It should be noted that, in the embodiment of the present application, the arrangement of the beam indexes is illustrated as an example in which the beam indexes corresponding to the power headroom are arranged in ascending order. Of course, the arrangement of the power headroom based on the beam indexes can also be in other ways For the sorting, for example, sorting in descending order or random sorting, the specific implementation method can refer to the sorting in ascending order above, and will not be repeated here. In the following, the arrangement manner of the beam index is still used as an example to illustrate that the beam index corresponding to the power headroom is arranged in ascending order, and other manners will not be described in detail.

Example two

Combining scenario 1, as shown in FIG. 8 , it is a schematic flowchart of a communication method provided by the embodiment of the present application. The method specifically includes the following steps:

S801: The terminal device acquires uplink transmission resources.

Wherein, the uplink transmission resources may include the first PUSCH repetition and the second PUSCH repetition. Specifically, the first PUSCH repetition and the second PUSCH repetition can be configured with reference to the manner a1 and the manner a2 of the first configuration information in S501, and details are not repeated here.

Alternatively, the first network device may also send fourth indication information to the terminal device, where the fourth indication information is used to instruct the terminal device to report the first field and the second field in the power headroom report MAC CE.

Correspondingly, after receiving the fourth indication information, the terminal device may perform S803 and S804 after performing S802. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in an existing manner. Of course, the terminal device and the first network device can also negotiate in other ways whether to use the structure of the power headroom report MAC CE in the embodiment of the present application to report the power headroom, which is not limited here.

S802: The terminal device triggers to report a power headroom report.

For details, reference may be made to S502, which will not be repeated here.

S803: The terminal device determines the first field and the second field.

Wherein, the first field indicates the first power headroom of the first PUSCH repetition, and the second field indicates the second power headroom of the second PUSCH repetition. The second PUSCH repetition corresponds to the first beam, and the second PUSCH repetition corresponds to the second beam. For the manner of determining the first power headroom and the manner of determining the second power headroom, reference may be made to the manner of determining in S503 , which will not be repeated here.

S804: The terminal device reports the first field and the second field.

With reference to scenario 1, the terminal device reports the first field and the second field to the first network device on the first PUSCH repetition.

Among them, there are many ways for the terminal device to report the first field and the second field. For example, you can refer to the reporting method in S504, that is, the first field and the second field can be the power headroom in the power headroom report MAC CE field.

Combination mode 1: the reporting order is sorted in ascending order according to the serving cell index corresponding to the first field, and then sorted in ascending order according to the serving cell index in the second field; wherein, the first beam index and the second beam index are in ascending order.

For example, as shown in FIG. 6, a first power headroom is indicated in the first field, and a second power headroom is indicated in the second field. Therefore, the manner of reporting the first field and the second field can be as shown in FIG. 7a .

Combination mode 2: The reporting order is firstly sorted in ascending order according to beam indexes of the first field and the second field, and then sorted in ascending order of the first field and the second field according to the serving cell indexes of the first field and the second field.

For example, as shown in FIG. 6, a first power headroom is indicated in the first field, and a second power headroom is indicated in the second field. Therefore, the manner of reporting the first field and the second field can be as shown in FIG. 7b .

In the manner in which the first field and the second field are sorted based on the beam index, there may also be multiple alternative implementation manners. For example, in a possible implementation manner, the first field and the second field may be arranged in ascending order based on the index of the network equipment, for example, the index of the first network equipment is earlier than the index of the second network equipment, then the power headroom report MAC CE in ascending order according to the order of the first field and the second field. In another possible implementation, the first field and the second field can be arranged in ascending order based on the beam index of the beam, for example, the beam index of the first beam is earlier than the beam index of the second beam, then the power headroom report MAC CE in ascending order according to the order of the first field and the second field. In another possible implementation, the first field and the second field may be arranged in ascending order based on the index of the SRS resource set, for example, the index of the first SRS resource set corresponding to the first beam is earlier than the index of the second SRS resource set corresponding to the second beam When the index of the resource set is used, the power headroom report MAC CE is arranged in ascending order according to the order of the first field and the second field. In another possible implementation manner, the first field and the second field may be arranged in ascending order based on the path reference signal index, for example, the path reference signal index of the path reference signal corresponding to the first power headroom is earlier than the path reference signal index of the second power headroom When the path reference signal index of the corresponding path reference signal is used, the power headroom report MAC CE is arranged in ascending order according to the order of the first field and the second field.

Through the above method, two PHRs are reported in the mTRP PUSCH repetition scenario, and the UE can report the power headroom of the repetitions corresponding to the two beam directions to report the PHRs corresponding to the two TRPs, helping the two TRPs to adjust the corresponding PUSCH power.

Example three

Considering the scenario where non-repeated data may be sent (scenario 2), in order to ensure the transmission performance of PUSCH, this application proposes a communication method. As shown in FIG. 9 , it is a schematic flowchart of a communication method provided by the embodiment of the present application. The method specifically includes the following steps:

S901: The terminal device acquires uplink transmission resources.

In a possible implementation manner, assuming that the first network device is a network device that schedules uplink transmission resources of the terminal device as an example, the first network device may configure uplink transmission resources for the terminal device.

[Corrected 08.09.2022 under Rule 91]
For example, the first network device may send the first configuration information to the terminal device. Wherein, the first configuration information is used to indicate uplink transmission resources of the terminal equipment. Considering the scenario of sending non-repetitive data, the uplink transmission resource configured for the terminal device may include a PUSCH for sending non-repetitive data. At this time, the first configuration information is used to indicate the configuration information of the third PUSCH, and the third PUSCH may be an uplink transmission resource corresponding to the first serving cell (for example, serving cell #1). The first PUSCH repetition and the second PUSCH repetition are located in the uplink transmission resource of the same serving cell.

In addition, the uplink transmission resource that the terminal device can also obtain includes: the first PUSCH repetition and the second PUSCH repetition. The method of obtaining the first PUSCH repetition and the second PUSCH repetition can be determined by referring to method a1 and method a2. For example, the first configuration information carries the configuration information of the first PUSCH repetition and the configuration information of the second PUSCH repetition. For another example, the terminal The device may obtain configuration information of the first SRS resource set and configuration information of the second SRS resource set. The terminal device may determine the first PUSCH repetition according to the configuration information of the first SRS resource set, and determine the second PUSCH repetition according to the configuration information of the second SRS resource set.

Wherein, taking the third PUSCH corresponding to the first beam and/or the first power control parameter as an example, the configuration information of the third PUSCH may be used to indicate the configuration information corresponding to the first beam, or the configuration information of the first power control parameter configuration information. Therefore, after obtaining the configuration information of the third PUSCH, the terminal device may use the first beam on the third PUSCH to send data to the first network device. Correspondingly, when the terminal device triggers the power headroom report on the third PUSCH, it may further determine the power headroom based on the third PUSCH, that is, determine the power headroom corresponding to the first beam.

In some embodiments, the first configuration information may also be used to indicate the first beam or to indicate the first power control parameter.

Therefore, when obtaining the first configuration information, the terminal device may determine the third PUSCH corresponding to the first beam based on the first configuration information. Alternatively, when obtaining the first power control parameter, the terminal device may determine the third PUSCH corresponding to the first power control parameter based on the first power control parameter. For another example, when obtaining the first configuration information, the terminal device may determine the third PUSCH based on the first beam and the first power control parameter indicated in the first configuration information.

The terminal device may obtain the first beam associated with the first SRS resource set according to the configuration information of the first SRS resource set, that is, the terminal device may obtain the first beam indicated in the first configuration information. Alternatively, the terminal device may obtain the first power control parameter indicated in the first configuration information according to the configuration information of the first SRS resource set. Optionally, the terminal device may also obtain corresponding precoding information according to configuration information of the first SRS resource set. Therefore, the terminal device can use the beam direction of the first beam to send the third PUSCH transmission to the first network device at the transmission opportunity corresponding to the first SRS resource according to the configuration information of the first SRS resource set or corresponding precoding information .

Correspondingly, when obtaining the first configuration information, the terminal device may also obtain uplink scheduling signaling or configuration scheduling information, so as to determine to send data on the uplink transmission resource.

In a possible implementation manner, the first network device may send second indication information to the terminal device, where the second indication information may be used to instruct the UE to send the third PUSCH transmission to the first network device in the first serving cell. After receiving the second indication information, the terminal device uses the beam direction of the first beam to send the third PUSCH transmission to the first network device at the transmission opportunity corresponding to the first SRS resource.

Correspondingly, after receiving the fourth indication information, the terminal device may perform S903 and S904 after performing S902. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in an existing manner. Of course, the terminal device and the first network device can also negotiate in other ways whether to use the structure of the power headroom report MAC CE in the embodiment of the present application to report the power headroom, which is not limited here.

S902: The terminal device triggers to report a power headroom report.

Among them, the terminal device can trigger the reporting of the power headroom report by referring to the seven trigger conditions in S402. When one or more of the seven trigger conditions are met, the terminal device can trigger the report of the power headroom, that is, the terminal device sends Power headroom report.

Taking the first trigger condition as an example, in Scenario 2, considering the scenario of non-repeated data transmission, the terminal device can obtain the first trigger information and the second trigger information, and determine whether the condition is satisfied based on the first trigger information and the second trigger information Triggering conditions.

In some embodiments, the change value of the PHR transmission power factor may be the threshold value of the path loss of the first serving cell corresponding to the first network device, and the terminal device may determine whether the change value of the path loss corresponding to the first network device exceeds the threshold value of the PHR transmission Whether the power factor change value and the PHR transmission prohibition timer expires, and determine whether the first serving cell corresponding to the first network device meets the conditions for triggering the report of the power headroom report, that is, judges whether the third PUSCH meets the conditions for triggering the report of the power headroom report . Alternatively, the terminal device may determine whether the third PUSCH meets the requirements for triggering the report of the power headroom report according to whether the change value of the path loss of the third PUSCH corresponding to the first network device exceeds the change value of the PHR transmission power factor and whether the PHR transmission prohibition timer expires. condition. In this embodiment, the PHR transmission power factor change value may be the same as or different from the first PHR transmission power factor change value, which is not limited herein.

S903: The terminal device determines the first power headroom and the second power headroom.

In combination with scenario 2, considering that the terminal device may not obtain the second PUSCH repetition corresponding to the second beam, therefore, in this scenario, the terminal device may determine the first power headroom based on the third PUSCH. The terminal device may determine the second power headroom based on the reference PUSCH.

Wherein, triggering power headroom reporting may be related to the third PUSCH. For example, as shown in FIG. 10, after determining that the power headroom report is triggered, the terminal device determines that the transmittable uplink transmission resource is the third PUSCH repetition according to the uplink grant scheduling signaling (for example, the second indication information) , at this time, the terminal device may send a power headroom report MAC CE to the first network device on the third PUSCH, and the power headroom report MAC CE may carry the first power headroom and the second power headroom.

In the following, modes B1 to B2 are used as examples for illustration.

Mode B1, the terminal device may determine the power headroom of the third PUSCH based on the third PUSCH according to formula (1), and use the power headroom of the third PUSCH as the first power headroom.

In manner B2, the terminal device may determine the power headroom of the reference PUSCH according to formula (2), and use the power headroom of the reference PUSCH as the first power headroom. Wherein, the reference PUSCH may be the default P _{O_PUSCH, b, f, c} (j) and α _{b, f, c} (j) configured by the network device in the second case, the path loss reference signal index is 0, and

Among them, MPR=0dB, A-MPR=0dB, P-MPR=0dB. TC=0dB reference PUSCH.

S904: The UE reports the first power headroom and the second power headroom.

In a possible implementation manner, the first power headroom and the second power headroom are carried in the power headroom report MAC CE. In combination with Scenario 2, the power headroom report MAC CE may be transmitted on the third PUSCH.

In a possible implementation manner, the power headroom report is a specific trigger condition, which can be referred to the trigger conditions of S402 and S902, and will not be repeated here. Taking after determining that the power headroom report is triggered, the terminal device determines that the transmittable uplink transmission resource is the third PUSCH repetition according to the uplink grant scheduling signaling (for example, the second indication information), at this time, the terminal device can be in The power headroom report MAC CE is sent to the first network device on the third PUSCH, and the power headroom report MAC CE may carry the first power headroom and the second power headroom.

In some embodiments, the structure of the power headroom report MAC CE can be as shown in Figure 11a and Figure 11b, Figure 11a is an example of a way of sorting the indication field and the field corresponding to the power headroom in a combined manner, Figure 11a 11b is an example of a way of sorting the indication field and the field corresponding to the power headroom in combination with the second way.

In the power headroom report MAC CE, an indication field and a set of power headroom fields may be included. Each indication field in the indication field set is used to indicate whether the serving cell corresponding to the power headroom report has a reported power headroom. The power headroom field set includes a first field corresponding to the first power headroom and a second field corresponding to the second power headroom.

Wherein, the power headroom field set may include a first field and a second field. Wherein, the first field may be used to indicate the first power headroom, and the second field may be used to indicate the second power headroom. For example, the first field may be used to indicate the power headroom level of the reported first power headroom. The second field may be used to indicate the power headroom level of the reported second power headroom. Exemplarily, the length of the second field may be 6 bits, and the length of the first field may be 6 bits. Optionally, the first field may also be used to indicate the maximum power value of the first power headroom, for example, P _CMAX,f,c . The second field may also be used to indicate the maximum power value of the second power headroom, for example, P _CMAX,f,c .

In this example, considering that the second power headroom is determined according to the reference PUSCH, therefore, in the power headroom report MAC CE, the V field corresponding to the second power headroom can be 0, for details, refer to FIG. 11a and FIG. 11b.

Example four

Combining scenario 2, as shown in FIG. 12 , it is a schematic flowchart of a communication method provided by the embodiment of the present application. The method specifically includes the following steps:

S1201: The terminal device acquires uplink transmission resources.

Wherein, the uplink transmission resources may include the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH. For details, reference may be made to the configuration of the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH in the first configuration information in S901 , which will not be repeated here.

Correspondingly, after receiving the fourth indication information, the terminal device may perform S1203 and S1204 after performing S1202. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in an existing manner. Of course, the terminal device and the first network device can also negotiate in other ways whether to use the structure of the power headroom report MAC CE in the embodiment of the present application to report the power headroom, which is not limited here.

S1202: The terminal device triggers to report a power headroom report.

For details, reference may be made to S902, which will not be repeated here.

S1203: The terminal device determines the first field and the second field.

Wherein, the first field indicates the first power headroom of the third PUSCH, and the second field indicates the second power headroom of the reference PUSCH. The third PUSCH corresponds to the first beam. For the manner of determining the first power headroom and the manner of determining the second power headroom, reference may be made to the manner of determining in S903 , which will not be repeated here.

S1204: The terminal device reports the first field and the second field.

In conjunction with scenario 2, the terminal device reports the first field and the second field to the first network device on the third PUSCH.

Among them, there are many ways for the terminal device to report the first field and the second field. For example, you can refer to the reporting method in S904, that is, the first field and the second field can be the power headroom in the power headroom report MAC CE field. Refer to the examples in Fig. 11a and Fig. 11b for the specific reported power headroom report MAC CE manner, which will not be repeated here.

Example five

Consider the scenario where non-repeated data and repeated data may be sent at the same time (scenario 3), for example, the repeated data is sent on serving cell #1, and the PUSCH that triggers reporting of PHR is on serving cell #2. Alternatively, the non-repetitive data is sent on the serving cell #1, and the PUSCH that triggers reporting of the PHR is on the serving cell #2. In order to ensure the transmission performance of the PUSCH, the present application proposes a communication method. As shown in FIG. 13 , it is a schematic flowchart of a communication method provided by the embodiment of the present application. The method specifically includes the following steps:

S1301: The terminal device acquires uplink transmission resources.

In a possible implementation manner, assuming that the first network device is a network device that schedules uplink transmission resources of the terminal device as an example, the first network device may configure uplink transmission resources for the terminal device. For example, the first network device may send the first configuration information to the terminal device. Wherein, the first configuration information is used to indicate uplink transmission resources of the terminal equipment.

Considering the scenario that sending non-repetitive data and sending repeated data may exist at the same time, the uplink transmission resource configured for the terminal device may include PUSCH for sending non-repetitive data and repetition of PUSCH for sending repeated data.

[Corrected 08.09.2022 under Rule 91]
Still taking repeated sending twice as an example, the uplink transmission resources for sending repeated data may include: a first PUSCH repetition and a second PUSCH repetition, and the first PUSCH repetition and the second PUSCH repetition correspondingly send the same transmission block. The first PUSCH repetition and the second PUSCH repetition correspond to the same serving cell, for example, the first serving cell. For details about the first PUSCH repetition and the second PUSCH repetition, reference may be made to S501, which will not be repeated here.

Correspondingly, the first configuration information may include: configuration information for indicating the first PUSCH repetition and the second PUSCH repetition. In addition, the first configuration information may also include: configuration information for indicating the fourth PUSCH, the fourth PUSCH may be the uplink transmission resource corresponding to the second serving cell, that is, the fourth PUSCH is repeated with the first PUSCH and the second PUSCH Uplink transmission resources located in different serving cells (for example, serving cell #2).

The beam direction of the beam corresponding to the fourth PUSCH may be the same as the beam direction of the first beam, or may be different from the beam direction of the first beam, or, the power control parameter corresponding to the fourth PUSCH may repeat the power control parameter corresponding to the first PUSCH The parameters are the same, and may also be different from the power control parameters corresponding to the first PUSCH repetition.

[Corrected 08.09.2022 under Rule 91]
Optionally, the first network device may send first indication information to the terminal device, and the first indication information may be used to instruct the UE to send the first PUSCH repeated transmission to the first network device in the first serving cell. In addition, the first indication information It may also be used to instruct the UE to send the second PUSCH repeated transmission to the second network device in the first serving cell. For details, refer to S501. Compared with S501, in S1301, the first network device may further send third indication information to the terminal device, where the third indication information may be used to instruct the UE to send a fourth PUSCH transmission to the first network device in the second serving cell.

Correspondingly, after receiving the fourth indication information, the terminal device may perform S1303 and S1304 after performing S1302. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in an existing manner. Of course, the terminal device and the first network device can also negotiate in other ways whether to use the structure of the power headroom report MAC CE in the embodiment of the present application to report the power headroom, which is not limited here.

S1302: The terminal device triggers to report a power headroom report.

Taking the first trigger condition as an example, in scenario 3, the PHR transmission power factor change value can be the threshold value of the path loss of the second serving cell corresponding to the first network device, and the terminal device can Whether the change value of the path loss of the second serving cell exceeds the change value of the PHR transmission power factor and whether the PHR transmission prohibition timer expires, determines whether the fourth PUSCH satisfies the condition for triggering the report of the power headroom report. Alternatively, the terminal device may determine whether the fourth PUSCH meets the requirements for triggering the report of the power headroom report according to whether the change value of the path loss of the fourth PUSCH corresponding to the first network device exceeds the change value of the PHR transmission power factor and whether the PHR transmission prohibition timer expires. condition. It should be noted that, in this embodiment, the PHR transmission power factor change value may be the same as or different from the second PHR transmission power factor change value, and the PHR transmission power factor change value may be the same as the first PHR transmission power factor change value. The values are the same or different, which is not limited here.

S1303: The terminal device determines the first power headroom and the second power headroom.

Considering that in scenario 3, non-repeated data and repeated data may be transmitted at the same time, and PUSCHs on the same serving cell may overlap in time domain, the terminal device may determine the first power headroom based on the first PUSCH repetition. The second power headroom may be determined according to the repetition of the second PUSCH, or may be determined according to the path loss signal of the second PUSCH.

For example, consider a scenario where PUSCHs on different serving cells may overlap in the time domain, or, the terminal device may determine the first power headroom based on the third PUSCH. The second power headroom may be determined according to a reference PUSCH transmission, the second power headroom may be determined according to a second PUSCH repetition, or may be determined according to a path loss signal of the second PUSCH.

In the following, modes C1 to C4 are used as examples for illustration.

Way C1: The terminal device can determine the power headroom of the first PUSCH repetition according to formula (1) in case 1 and at least one of the first beam, the first power control parameter, or the first PUSCH repetition, and use the The power headroom serves as the first power headroom. According to the formula (1) in case 1, and at least one of the second beam, the second power control parameter, or the second PUSCH repetition, determine the power headroom of the second PUSCH repetition, and use the power headroom as the second power headroom.

Way C2: The terminal device can determine the power headroom of the second PUSCH repetition according to formula (1) in case 1 and at least one of the second beam, the second power control parameter, or the second PUSCH repetition, and set the power headroom The headroom is used as the second power headroom. The terminal device may determine the power headroom of the reference PUSCH repetition according to the formula (2) in the second case, and use the power headroom as the first power headroom. Alternatively, the terminal device may determine the power headroom according to formula (3) in case three and the path loss reference signal corresponding to the first beam or first PUSCH repetition, and use the power headroom as the first power headroom.

Way C3: The terminal device can determine the power headroom of the first PUSCH repetition according to formula (1) in case 1 and at least one of the first beam, the first power control parameter, or the first PUSCH, and use the power headroom amount as the first power headroom.

The terminal device may determine the power headroom of the reference PUSCH repetition according to the formula (2) in the second case, and use the power headroom as the second power headroom. Alternatively, the terminal device may determine the power headroom according to formula (3) in case three and the path loss reference signal corresponding to the second beam, the second power control parameter, or the second PUSCH repetition, and use the power headroom as the second power headroom.

Mode C4: The terminal device may first determine the PUSCH repetition that is earlier in the time domain repetition of the fourth PUSCH repetition, for example, the first PUSCH repetition overlaps or partially overlaps the fourth PUSCH repetition in the time domain, and the second PUSCH repetition overlaps with the fourth PUSCH repetition in the time domain. The fourth PUSCH overlaps or partially overlaps in the time domain. At this time, the PUSCH repetition for determining the power headroom using formula (1) may be determined according to the transmission opportunity of the first PUSCH repetition and the transmission opportunity of the second PUSCH repetition.

For example, if the transmission timing of the first PUSCH repetition is earlier than the transmission timing of the second PUSCH repetition, the terminal device may use formula (1) in case 1 and the first beam, the first power control parameter or the first PUSCH At least one item of the first PUSCH repetition power headroom is determined, and the power headroom is used as the first power headroom. The terminal device may determine the power headroom of the reference PUSCH repetition according to the formula (2) in the second case, and use the power headroom as the second power headroom. Alternatively, the terminal device may determine the power headroom according to formula (3) in case three and the path loss reference signal corresponding to the second beam, the second power control parameter, or the second PUSCH repetition, and use the power headroom as the second power headroom.

For another example, if the transmission timing of the second PUSCH repetition is earlier than the transmission timing of the first PUSCH repetition, the terminal device may use formula (2) in case 2 or formula (3) in case 3 and the first beam, The first power control parameter or at least one item of the path loss reference signal corresponding to the first PUSCH repetition determines the power headroom, and uses the power headroom as the first power headroom. The terminal device may determine the power headroom of the second PUSCH repetition according to the formula (1) in the first case, and use the power headroom as the second power headroom.

Way C5: The terminal device can determine the power headroom of the third PUSCH according to formula (1) in case 1 and at least one of the first beam, the first power control parameter, or the third PUSCH, and use the power headroom amount as the first power headroom. According to the formula (2) in the second case, the power headroom of the reference PUSCH is determined, and the power headroom is used as the second power headroom.

Method C6: The terminal device can determine the power headroom of the third PUSCH repetition according to formula (3) in case three and at least one of the first beam, the first power control parameter, or the path loss reference signal corresponding to the third PUSCH , and use the power headroom as the first power headroom. The terminal device may determine the power headroom of the reference PUSCH repetition according to the formula (2) in the second case, and use the power headroom as the second power headroom.

Manner C7: the terminal device may determine the power headroom according to the formula (2) in the second case, and use the power headroom as the first power headroom and the second power headroom.

S1304: The terminal device reports the first power headroom and the second power headroom.

In a possible implementation manner, the first power headroom and the second power headroom are carried in the power headroom report MAC CE. In combination with scenario 3, the power headroom report MAC CE may be transmitted on the fourth PUSCH.

For a possible implementation manner, for the specific trigger conditions of the power headroom report, refer to the trigger conditions in S402 and S1302, which will not be repeated here. Wherein, triggering power headroom reporting may be related to the fourth PUSCH. Taking after determining that the power headroom report is triggered, the terminal device determines that the transmittable uplink transmission resource is the fourth PUSCH repetition according to the uplink authorization scheduling signaling (for example, the third indication information), at this time, the terminal device can be in The power headroom report MAC CE is sent to the first network device on the fourth PUSCH, and the power headroom report MAC CE may carry the first power headroom and the second power headroom.

The following uses methods D1 to D3 to illustrate possible ways of reporting the first power headroom and the second power headroom based on the case where the fourth PUSCH overlaps with the first PUSCH repetition and the second PUSCH repetition in the time domain.

Mode D1, the fourth PUSCH overlaps with one of the first PUSCH repetition and the second PUSCH repetition in the time domain.

Optionally, considering the scenario where non-repeated data and repeated data may be transmitted at the same time, the terminal device may obtain first indication information, and the first indication information is used to instruct the terminal device to send the first PUSCH to the first network device and the second network device respectively repeat and the second PUSCH repeats. Optionally, the terminal device may acquire second indication information, where the second indication information is used to instruct the terminal device to send the third PUSCH transmission to the first network device. Optionally, the terminal device may acquire third indication information, where the third indication information is used to instruct the terminal device to send the fourth PUSCH transmission to the first network device.

In a possible situation, the first serving cell where the fourth PUSCH is located has the same subcarrier spacing as the second serving cell where the first and second PUSCH repetitions are located, and the time slot where the fourth PUSCH is located is the same as the time slot where the first PUSCH repetition is located. The slot overlaps with one of the slots where the second PUSCH repetition is located.

Taking the time domain overlap of the second PUSCH repetition and the fourth PUSCH, or the overlapping of the time slot of the fourth PUSCH and the time slot of the second PUSCH repetition as an example, as shown in FIG. The second PUSCH repetitions in slot 0 and slot 1 overlap in time domain.

At this time, the first power headroom and the second power headroom may be determined based on manner C1 or manner C2, and the first power headroom and the second power headroom are sent on the fourth PUSCH.

Wherein, the first power headroom and the second power headroom may be reported in the power headroom report MAC CE. In the case where the power headroom report MAC CE includes the first power headroom and the second power headroom, reference may be made to the structure of the power headroom report MAC CE in Example 1 to Example 4, which will not be repeated here.

Optionally, the terminal device may also report the third power headroom (PH1-2) of the second serving cell corresponding to the fourth PUSCH. Wherein, the manner of determining the third power headroom may be determined with reference to the formula (1) in case 1, which will not be repeated here. The power headroom currently reported below may include the first power headroom (PH1-1), the second power headroom (PH2-1), and the third power headroom (PH1-1) of the second serving cell corresponding to the fourth PUSCH 2) As an example to illustrate. Correspondingly, there may be multiple structures of the reported power headroom report MAC CE, which will be described below in conjunction with the first and second methods.

Combination mode 1, as shown in FIG. 15a, may be sorted in the frequency domain first and then in the time domain. The power headroom report MAC CE may include a third field, which is used to indicate the third power headroom. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. The sorting manner of the power headroom may be that the first field, the third field, and the second field are sorted sequentially. Correspondingly, the V field corresponding to the first power headroom may be 1. The V field corresponding to the second power headroom may be 1. The V field corresponding to the third power headroom may be 1.

Combination mode 2, as shown in FIG. 15b , may be sorted in the time domain first and then in the frequency domain, and the sorting mode of the power headroom may be sorted by the first field, the second field, and the third field in sequence. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. Correspondingly, the V field corresponding to the first power headroom may be 1. The V field corresponding to the second power headroom may be 1. The V field corresponding to the third power headroom may be 1.

Mode D2, the fourth PUSCH overlaps with more than one PUSCH in the first PUSCH repetition and the second PUSCH repetition in time domain.

In a possible situation, the time domain overlap between the fourth PUSCH and the first PUSCH repetition and the second PUSCH repetition can also be understood as that the subcarrier spacing of the second serving cell where the fourth PUSCH is located is smaller than that of the first PUSCH repetition and the second PUSCH repetition. The second PUSCH repeats the subcarrier spacing of the first serving cell, and the fourth PUSCH overlaps with more than one PUSCH repetition on the first serving cell in a time domain. For example, as shown in FIG. 16a, the time slot in which the fourth PUSCH is located overlaps with the first PUSCH repetition and the second PUSCH repetition in time slot 0 and time slot 1. Taking the time domain overlapping of the first PUSCH repetition and the fourth PUSCH, or the overlapping of the time slot of the fourth PUSCH and the time slot of the first PUSCH repetition as an example, as shown in FIG. 16a, the time slot of the fourth PUSCH and the time The first PUSCH repetition in slot 0 and the second PUSCH repetition in slot 1 overlap in time domain. For another example, as shown in FIG. 16b , the time slot where the fourth PUSCH is located overlaps with the first PUSCH repetition and the second PUSCH repetition in time slot 0 in the time domain. In another possible situation, the first PUSCH repetition and the second PUSCH repetition transmitted on the first serving cell are type B PUSCH repetitions.

At this time, the first power headroom and the second power headroom may be determined based on manner C1 or manner C3, and the first power headroom and the second power headroom are sent on the fourth PUSCH. Optionally, the terminal device may determine the first power headroom and the second power headroom according to manner C4. For example, in the serving cell #1, the terminal device uses the first PUSCH repetition overlapping the fourth PUSCH on the serving cell #2 as the first PUSCH repetition overlapping the fourth PUSCH time domain. At this time, the terminal device may also determine the first power headroom and the second power headroom according to manner C4.

The structure of the reported power headroom report MAC CE can refer to FIG. 15a and FIG. 15b , and will not be repeated here.

Mode D3, the fourth PUSCH on the serving cell #2 does not overlap with the first PUSCH on the serving cell #1. And/or, the fourth PUSCH on serving cell #2 does not overlap with the second PUSCH on serving cell #1.

In mode D3, there may be many possible situations, which are illustrated below with reference to Fig. 17, Fig. 18a, and Fig. 18b.

As shown in Figure 17, the terminal device determines that the first PUSCH on time slot 0 is not transmitted repeatedly, the second PUSCH on time slot 1 is repeatedly transmitted, and the fourth PUSCH is repeated with the first PUSCH on time slot 0 and on time slot 1. The second PUSCH repetitions overlap in the time domain. At this time, the terminal device may determine the first power headroom (for example, determined according to the reference PUSCH) and the second power headroom (for example, determined according to the second PUSCH repetition) according to manner C5.

At this time, the structure of the reported power headroom report MAC CE can refer to the examples in Fig. 18a and Fig. 18b.

Combination mode 1, as shown in Figure 18a, can be the way of frequency domain sorting first and then time domain sorting. In the power headroom report MAC CE, it can include the first field, the second field and the third field, and the third field uses to indicate the third power headroom. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. The sorting manner of the power headroom may be that the first field, the third field, and the second field are sorted sequentially. Correspondingly, the V field corresponding to the first power headroom may be 0. The V field corresponding to the second power headroom may be 1. The V field corresponding to the third power headroom may be 1.

Combination mode 2, as shown in FIG. 18b , may be sorted in the time domain first and then in the frequency domain, and the sorting mode of the power headroom may be sorted by the first field, the second field, and the third field in sequence. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. Correspondingly, the V field corresponding to the first power headroom may be 0. The V field corresponding to the second power headroom may be 1. The V field corresponding to the third power headroom may be 1.

As shown in Figure 19, the UE does not receive the second indication information, and there is no PUSCH overlapping with the fourth PUSCH in the time domain in the first serving cell, or in other words, the time slot overlapping with the fourth PUSCH in the first serving cell There is no PUSCH transmission in the time slot, and the first serving cell is an activated serving cell and configured with first and second SRS resource sets.

At this time, the terminal device may determine the first power headroom (for example, determined according to the reference PUSCH) and the second power headroom (for example, determined according to the reference PUSCH) according to manner C7.

At this time, the structure of the reported power headroom report MAC CE can refer to the examples in FIG. 20a and FIG. 20b.

Combination mode 1, as shown in Figure 20a, can be the way of sorting in the frequency domain first and then in the time domain. In the power headroom report MAC CE, it can include the first field, the second field and the third field, and the third field uses to indicate the third power headroom. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. The sorting manner of the power headroom may be that the first field, the third field, and the second field are sorted sequentially. Correspondingly, the V field corresponding to the first power headroom may be 0. The V field corresponding to the second power headroom may be 0. The V field corresponding to the third power headroom may be 1.

Combination mode 2, as shown in FIG. 20b, may be sorted in the time domain first and then sorted in the frequency domain, and the sorting mode of the power headroom may be sorted by the first field, the second field, and the third field in sequence. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. Correspondingly, the V field corresponding to the first power headroom may be 0. The V field corresponding to the second power headroom may be 0. The V field corresponding to the third power headroom may be 1.

As shown in FIG. 21, the UE receives the first indication information, and the first indication information is used to instruct the UE to send the first PUSCH repetition and the second PUSCH repetition to the first network device and the second network device respectively, or the third indication information uses To instruct the UE to send a third PUSCH transmission to the first network device. There is no PUSCH overlapping with the fourth PUSCH in the time domain in the first serving cell, or there is no PUSCH transmission in the time slot overlapping with the fourth PUSCH in the first serving cell, and the first serving cell is activated The configured first and second SRS resource sets serving the cell.

At this time, the terminal device may determine the first power headroom (for example, determined according to the first PUSCH repetition) and the second power headroom (for example, determined according to the reference PUSCH) according to manner C6 or manner C7.

Combination mode 1, as shown in Figure 22a, can be the way of sorting in the frequency domain first and then in the time domain. In the power headroom report MAC CE, it can include the first field, the second field and the third field, and the third field uses to indicate the third power headroom. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. The sorting manner of the power headroom may be that the first field, the third field, and the second field are sorted sequentially. Correspondingly, the V field corresponding to the first power headroom may be 1. The V field corresponding to the second power headroom may be 0. The V field corresponding to the third power headroom may be 1.

Combination mode 2, as shown in FIG. 22b , may be sorted in the time domain first and then in the frequency domain, and the sorting mode of the power headroom may be sorted by the first field, the second field, and the third field in sequence. The indication field of the second serving cell corresponding to the third power headroom may be C1, that is, in the power headroom report MAC CE, the C1 field of the first network device may be 1. Correspondingly, the V field corresponding to the first power headroom may be 1. The V field corresponding to the second power headroom may be 0. The V field corresponding to the third power headroom may be 1.

In the prior art, a serving cell can only report one power headroom value; the present invention allows a serving cell to report power headroom values corresponding to two TRPs respectively. When two PHRs are reported in the mTRP PUSCH repetition scenario, the UE can report the power headroom of the repetitions corresponding to the two beam directions, so as to report the PHRs corresponding to the two TRPs and help the two TRPs adjust the power of their corresponding PUSCHs. On the basis of two power headroom values reported in a serving cell, the PHR ordering in the PHR MAC CE is determined.

Example six

Combining scenario 3, as shown in FIG. 23 , it is a schematic flowchart of a communication method provided by the embodiment of the present application. The method specifically includes the following steps:

S2301: The terminal device acquires uplink transmission resources.

Wherein, the uplink transmission resource may include the first PUSCH repetition, the second PUSCH repetition, and the fourth PUSCH. For details, reference may be made to the configuration of the first PUSCH repetition, the second PUSCH repetition, and the fourth PUSCH in the first configuration information in S1301, which will not be repeated here.

Correspondingly, after receiving the fourth indication information, the terminal device may perform S2303 and S2304 after performing S2302. When the terminal device does not receive the fourth indication information, the terminal device may report the power headroom in an existing manner. Of course, the terminal device and the first network device can also negotiate in other ways whether to use the structure of the power headroom report MAC CE in the embodiment of the present application to report the power headroom, which is not limited here.

Furthermore, the first network device may determine that the power headroom report MAC CE reported by the terminal device has a structure including the first field and the second field. Alternatively, the first network device and the terminal device may also negotiate in other ways, report the first field and the second field in the power headroom report MAC CE, or report the first power headroom and the first field in the power headroom report MAC CE Second power headroom.

S2302: The terminal device triggers to report the power headroom report.

For details, reference may be made to S1302, which will not be repeated here.

S2303: The terminal device determines the first field and the second field.

Wherein, the first field indicates the first power headroom of the first PUSCH repetition or the first power headroom of the reference PUSCH, and the second field indicates the second power headroom of the second PUSCH repetition, or the second power headroom of the reference PUSCH . The first PUSCH repetition corresponds to the first beam. The second PUSCH repetition corresponds to the second beam. For the manner of determining the first power headroom and the manner of determining the second power headroom, reference may be made to the manner of determining in S1303, and details are not repeated here.

S2304: The terminal device reports the first field and the second field.

In conjunction with scenario 3, the terminal device reports the first field and the second field to the first network device on the fourth PUSCH.

Among them, there are many ways for the terminal device to report the first field and the second field. For example, you can refer to the reporting method in S1304, that is, the first field and the second field can be the power headroom in the power headroom report MAC CE field. For specific ways of reporting the power headroom report MAC CE, refer to the examples in Figures 15a to 15b, 18a to 18b, 20a to 20b, and 22a to 22b, and will not be repeated here.

Considering the case of CA, the UE needs to report the PHR corresponding to multiple carriers in one MAC CE. In this scenario, the structure of the power headroom report MAC CE may include PHRs of multiple cells. In this application, the power headroom report MAC CE may include a PHR corresponding to at least one carrier corresponding to multiple network devices.

In some embodiments, the power headroom report MAC CE may include a set of power headroom fields. The power headroom field set includes a power headroom field on at least one carrier corresponding to the first network device, and a power headroom field on at least one carrier corresponding to the second network device. For example, the power headroom field on at least one carrier corresponding to the first network device may include a first field, and the first field may be used to indicate the first power headroom field on the first serving cell corresponding to the first network device. quantity. The power headroom field on at least one carrier corresponding to the second network device may include a second field, and the second field may be used to indicate the second power headroom on the first serving cell corresponding to the second network device.

Considering that the power headroom report MAC CE can include multiple power headrooms, the power headroom report MAC CE can include multiple power headrooms. The following uses

methods

1 and 2 to illustrate the power headroom report MAC CE. Possible ways of sorting the margin.

Method 1, the sorting of the power headroom in the power headroom report MAC CE can be performed according to the ascending order of the serving cell index first, and then according to the ascending order of the beam index. Another possible implementation manner, the sorting of the power headroom in the power headroom report MAC C may first be in ascending order according to the serving cell index, and then in ascending order according to the SRS resource set index. Another possible implementation manner, the sorting of the power headroom in the power headroom report MAC C may first be in ascending order according to the serving cell index, and then in ascending order according to the path loss reference signal index.

Still taking the index of the first network device prior to the index of the second network device as an example, (of course, the beam index of the first beam may also be prior to the beam index of the second beam, or the path loss reference signal of the first beam Index is prior to the path loss reference signal index of the second beam), at this time, as shown in Figure 24, the power headroom report may include: the power headroom field set of the first network device and the power headroom field of the second network device gather. The set of power headroom fields for each network device can be arranged in ascending order according to the serving cell index.

Taking the first network device as an example, the power headroom field set of the first network device includes four power fields (for example, as PH1-1 to PH1-4 shown in Fig. 7a). PH1-1 to PH1-4 may be arranged in sequence in the power headroom field set.

For example, the serving cell R corresponding to the first network device may be a primary and secondary serving cell of the terminal device, and correspondingly, PH1 may be indication information of power headroom measured under the primary and secondary serving cell. Wherein, the PH1-1 may also be indication information of type 2 (type 2) power headroom. Among them, the type 2 PH can be the nominal maximum transmission power of the terminal equipment and the UL-SCH and PUCCH transmission on the primary and secondary cell (SpCell) of another MAC entity (that is, the e-UTRA MAC entity under EN-DC). Estimated power difference.

Optionally, after the PH1-1 field, it may further include: a maximum transmission power field (carrying Pcmax1) corresponding to the primary and secondary serving cells. The power headroom report MAC CE may also include a P field, and the setting of the value of the P field needs to meet the MPE requirements, or the P field is used to indicate whether the power headroom performs power backoff. The power headroom report MAC CE may also include a V field, and the V field indicates whether the PH value is calculated based on actual transmission or a reference format.

The power headroom report MAC CE may also include the PH field (carrying PH1-2) of the first network device or the primary serving cell of the first beam and the corresponding maximum transmission power field (carrying Pcmax2). For example, PH1-2 may be indication information of the PH of the first network device or the primary serving cell of the first beam. PH2 may be the indication information of type 1 power headroom, for example, PH1-2 may be the power headroom level corresponding to the measurement of the primary serving cell (PCell) of the first network device. For example, PH1-2 may be the first power headroom in the example of FIG. 6 .

Optionally, PH1-3 or PH1-4 may be indication information of a PH of a non-primary serving cell (secondary serving cell) corresponding to the first network device. Optionally, in the power headroom report MAC CE, for the PH field of the non-primary serving cell (secondary serving cell) corresponding to the first network device, the non-primary serving cell (secondary serving cell) corresponding to one or more X-type first network devices may also be included. The PH field of the primary serving cell (for example, the secondary serving cell) and the corresponding maximum transmission power field. For example, the power headroom report MAC CE may include a PH field of a type of PH and a corresponding maximum transmission power field, and the type of PH may be a PH of a PUSCH. The power headroom report MAC CE may include PH fields of three types of PHs and corresponding maximum transmission power fields, and the three types of PHs may be SRS PHs. For example, PH3 may be the indication information of the power headroom of type X, for example, the value of type X may be 1 or 3, wherein the PH whose value of type X is 1 may be the power headroom corresponding to PUSCH. The PH whose type X is 3 may be the power headroom corresponding to the SRS.

For the power headroom of the second network device, the power headroom report MAC CE may also include the PH field (for example, PH2-1) of the primary serving cell of the second network device (if present) and the corresponding maximum transmission power field.

Optionally, in the power headroom report MAC CE, the PH field (for example, PH2-2～PH2-4) of the non-primary serving cell (for example, the secondary serving cell) corresponding to the second network device may also be included, the PH The fields can be arranged in ascending order based on the serving cell index. Optionally, for the PH field of the primary serving cell of the second network device, one or more types of PH fields of the primary serving cell of the second network device and the corresponding maximum transmission power field. For example, the power headroom report MAC CE may include a PH field (for example, PH2-3 or PH2-4) and a corresponding maximum transmission power field of a type of PH, and the type of PH may be a PH of a PUSCH. The power headroom report MAC CE may include PH fields and corresponding maximum transmission power fields of three types of PHs (for example, PH2-3 or PH2-4), and the three types of PHs may be SRS PHs.

Consider the situation that the power headroom report MAC CE can include the power headroom of more than 8 serving cells. In the example shown in Figure 25a and Figure 25b, the combination method 1 is still used. In the scenario where there are 2 network devices, Power headrooms for up to 16 serving cells may be included. Certainly, the quantity of the power headroom that can include in the power headroom report MAC CE, this application does not limit. The specific indication fields can be sorted according to the example shown in Figure 25a, according to the way that different beam indexes in each row account for half, wherein each row can be sorted according to the beam index first, for example, the first network device corresponding The indication field corresponding to each serving cell in the first beam of the first network device, and the indication field corresponding to each serving cell in the second beam corresponding to the second network device. The indication fields of different rows may be arranged in ascending order according to the serving cell index.

Alternatively, as shown in Figure 25b, the indication fields corresponding to the serving cells in the first beam corresponding to the first network device are arranged first, and then the indications corresponding to the serving cells in the second beam corresponding to the second network device are arranged. field.

The fields corresponding to the corresponding power headroom can be sorted in combination with method 1. For details, please refer to the sorting method of power headroom in Figure 25a and Figure 25b, that is, first according to the power headroom corresponding to each network device or each beam The serving cell indexes are sorted, and then sorted according to the beam indexes corresponding to each power headroom, which will not be repeated here.

Mode 2, the sorting of the power headroom in the power headroom report MAC CE may first be in ascending order according to the beam index, and then in ascending order according to the serving cell index. In another possible implementation manner, the sorting of the power headrooms in the power headroom set may first be in ascending order according to the SRS resource set index, and then in ascending order according to the serving cell index. In another possible implementation manner, the sorting of the power headrooms in the power headroom set may first be in an ascending order according to the path loss reference signal index, and then be in an ascending order according to the serving cell index.

For example, the fields corresponding to the power headroom can be sorted in combination with the second method, that is, the power headroom is first sorted according to the beam index, and then sorted according to the serving cell index of the power headroom, as shown in Figure 26a, the first network device and the second network device correspond to their respective P _cmax ; or, as shown in FIG. 26b, the first network device and the second network device share a P _cmax (for example, share the P _cmax of the second network device in FIG. 26b ), where No longer.

Example seven

Consider the scenario where the transmission timing of repeated data is sequential (Scenario 4). In order to ensure the transmission performance of the PUSCH, the present application proposes a communication method. As shown in FIG. 27 , it is a schematic flowchart of a communication method provided by the embodiment of the present application. The method specifically includes the following steps:

S2701: The terminal device acquires uplink transmission resources.

Optionally, the first PUSCH repetition and the second PUSCH repetition are located on the same carrier; optionally, the first PUSCH repetition and the second PUSCH repetition are located in different serving cells of the same carrier; optionally, the first PUSCH repetition and the second PUSCH The repetition corresponds to the first carrier and the second carrier respectively, and the first carrier and the second carrier are independent carriers.

The first PUSCH repetition corresponds to the first beam/first power control parameter/path loss reference signal; the second PUSCH repetition corresponds to the second beam/second power control parameter/path loss reference signal. That is to say, the transmission power of the first PUSCH repetition is determined by the first power control parameter/path loss reference signal, and the transmission power of the second PUSCH repetition is determined by the second power control parameter/path loss reference signal.

Correspondingly, the first configuration information may include: configuration information for indicating the first PUSCH repetition and the second PUSCH repetition. Optionally, the first configuration information may also include: configuration information for indicating the third PUSCH, and the third PUSCH may be an uplink transmission resource corresponding to the first serving cell, that is, the first PUSCH is repeated with the first PUSCH and the second The PUSCH repeats uplink transmission resources located in the same serving cell (for example, serving cell #1).

Optionally, the first configuration information may also include: configuration information for indicating the fourth PUSCH, and the fourth PUSCH may be an uplink transmission resource corresponding to the second serving cell, that is, the fourth PUSCH is repeated with the first PUSCH and the second The PUSCH is repeatedly located in uplink transmission resources of different serving cells (for example, serving cell #2).

S2702: The terminal device triggers to report the power headroom report.

Among them, the terminal device can trigger the reporting of the power headroom report by referring to the seven trigger conditions in S402. When one or more of the seven trigger conditions are met, the terminal device can trigger the report of the power headroom, that is, the terminal device sends Power headroom report. For details, refer to the trigger conditions in Scenario 1 to Scenario 3, which will not be repeated here.

S2703: Determine whether the transmission timing of the PUSCH that triggers reporting of the power headroom report satisfies a preset condition. If yes, execute S2704; if not, execute S2705.

S2704: Report a power headroom.

In a possible implementation manner, the terminal device may report a power headroom to the first network device.

In some embodiments, the preset condition may be: the PUSCH that triggers the reporting of the power headroom report is the first PUSCH repetition, and the first PUSCH repetition is the first repeated transmission opportunity.

In manner E1, for example, the first beam corresponds to the first path loss reference signal, and the second beam corresponds to the second path loss reference signal. The path loss change value measured by the first path loss signal exceeds a preset value, and the PHR prohibition timer expires, triggering repeated PHR reporting of the first PUSCH. When the transmission timing of the first PUSCH repetition is earlier than the transmission timing of the second PUSCH repetition, it is determined to report the power headroom of the first PUSCH repetition.

Wherein, the manner of determining the first power headroom may refer to the manner of determining the power headroom of the first PUSCH repetition in Example 1 to Example 6, which will not be repeated here.

In manner E2, the first beam corresponds to the first path loss reference signal, and the second beam corresponds to the second path loss reference signal. The change value of the path loss measured by the first path loss signal exceeds a preset value, and the PHR prohibition timer expires, triggering the reporting of the PHR of the third PUSCH.

When the transmission timing of the third PUSCH is earlier than the repeated transmission timing of the second PUSCH, it is determined to report the power headroom of the third PUSCH. For the manner of determining the power headroom of the three PUSCHs, reference may be made to the manner of determining the power headroom of the third PUSCH in Example 1 to Example 6, which will not be repeated here.

In some other embodiments, the preset condition may be: the PUSCH that triggers the reporting of the power headroom report overlaps with the first PUSCH repetition in the time domain, and the first PUSCH repetition is the first repeated transmission opportunity.

In manner E3, the first beam corresponds to the first path loss reference signal, and the second beam corresponds to the second path loss reference signal. The path loss change value measured by the first path loss signal exceeds a preset value, and the PHR prohibition timer expires, triggering repeated PHR reporting of the fourth PUSCH.

The fourth PUSCH and the first PUSCH are repeated in the time domain, and the fourth PUSCH and the second PUSCH are not overlapped or partially overlapped in the time domain. And when the transmission timing of the first PUSCH repetition is earlier than the transmission timing of the second PUSCH repetition, it is determined to report the power headroom of the first PUSCH repetition.

For the manner of determining the power headroom of the first PUSCH repetition, reference may be made to the manner of determining the power headroom of the first PUSCH repetition in Example 1 to Example 6, which will not be repeated here.

In some other embodiments, the preset condition may be: the reporting of the power headroom report of the first beam and the reporting of the power headroom report of the second beam are triggered, and the reporting of the power headroom of the PUSCH with an early transmission opportunity is reported.

In mode E4, the PHR trigger conditions corresponding to the two TRPs are all satisfied, for example, the path loss changes measured by the path loss reference signal of the two PUSCH repetitions all exceed the preset value, and the PHR prohibition timer expires; or, the first PUSCH repetition and the second PUSCH repetition are both triggered to report the PHR, then report the PHR of the previous PUSCH repetition, or report the PHR of the PUSCH repetition of the first transmission opportunity.

For example, when the transmission timing of the first PUSCH is earlier than the transmission timing of the second PUSCH repetition, it is determined to report the power headroom of the first PUSCH repetition. Wherein, the manner of determining the first power headroom may refer to the manner of determining the power headroom of the first PUSCH repetition in Example 1 to Example 6, which will not be repeated here.

For another example, when the transmission timing of the second PUSCH is earlier than the transmission timing of the first PUSCH repetition, it is determined to report the power headroom of the second PUSCH repetition. For a manner of determining the power headroom of the second PUSCH repetition, reference may be made to the manner of determining the power headroom of the second PUSCH repetition in Example 1 to Example 6, which will not be repeated here.

Mode E5, the first beam corresponds to the first path loss reference signal, and the second beam corresponds to the second path loss reference signal. The change value of the path loss measured by the first path loss signal exceeds a preset value, and the PHR prohibition timer expires, triggering the reporting of the PHR of the third PUSCH. The path loss change value measured by the second path loss signal exceeds a preset value, and the PHR prohibition timer expires, triggering repeated PHR reporting of the second PUSCH.

When the transmission timing of the third PUSCH is earlier than the repeated transmission timing of the second PUSCH, it is determined to report the power headroom corresponding to the first beam (for example, the power headroom of the third PUSCH) on the third PUSCH. For the manner of determining the power headroom of the three PUSCHs, reference may be made to the manner of determining the power headroom of the third PUSCH in Example 1 to Example 6, which will not be repeated here.

In manner E6, the fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain, triggering the reporting of the PHR of the fourth PUSCH. The path loss change value measured by the second path loss signal exceeds a preset value, and the PHR prohibition timer expires, triggering repeated PHR reporting of the second PUSCH.

When the transmission timing of the fourth PUSCH is earlier than the repeated transmission timing of the second PUSCH, it is determined to report the power headroom corresponding to the first beam on the fourth PUSCH. The manner of determining the power headroom corresponding to the first beam reported on the fourth PUSCH may refer to the manner of determining the power headroom corresponding to the first beam reported on the fourth PUSCH in Example 5 to Example 6, which will not be repeated here.

In some embodiments, when the fifth PUSCH triggers the first power headroom report, the terminal device reports the first power headroom on the fifth PUSCH; the transmission timing of the fifth PUSCH is earlier than that of the second PUSCH Repeated transmission timing, the repeated transmission timing of the first PUSCH is earlier than the repeated transmission timing of the second PUSCH;

The first power headroom is determined according to the first PUSCH repetition, the first PUSCH repetition corresponds to the first transmission beam or the first power control parameter, and the first PUSCH repetition and the second PUSCH repetition use For sending repeated data; the second sending beam or the second power control parameter corresponds to the second PUSCH repetition.

In a possible implementation manner, the fifth PUSCH satisfies that: the fifth PUSCH is a repetition of the first PUSCH; or, the fifth PUSCH overlaps or partially overlaps with the first PUSCH repetition in a time domain.

In a possible implementation manner, when the PHR trigger conditions corresponding to the first PUSCH and the second PUSCH are not satisfied, the terminal device determines the reported PHR according to the second preset condition. The second preset condition is: take a larger PHR value. Therefore, the base station can improve the coverage performance of the UE by configuring more resources.

In a possible implementation manner, when a terminal device reports a PHR, it will carry TRP information corresponding to the reported PHR, and the TRP information may be TRP identification information or an SRS resource set index value, or a power control parameter set index value.

S2705: The terminal device cancels determining and reporting the power headroom.

In a possible implementation manner, the second power headroom is repeatedly determined according to the second PUSCH; the method further includes: when the sixth PUSCH triggers the reporting of the second power headroom, canceling the reporting of the second power headroom, The transmission time of the sixth PUSCH is later than the repeated transmission timing of the first PUSCH. The sixth PUSCH satisfies that: the fifth PUSCH is a repetition of the second PUSCH; or, the sixth PUSCH overlaps or partially overlaps with the second PUSCH repetition in time domain.

In some embodiments, the situation that the preset condition is not satisfied may be that the first PUSCH repetition is not the first PUSCH transmission opportunity, or the second PUSCH repetition is the first PUSCH transmission opportunity; or, the first PUSCH repetition is not associated with The first PUSCH transmission opportunity overlapping with the PUSCH carrying PHR MAC CE, or the second PUSCH repetition is the first transmission opportunity overlapping with the PUSCH carrying PHR MAC CE. Then the PHR is not calculated and the PHR is not reported.

Through the above method, there is no need to change the structure of the existing PHR MAC CE, the UE only needs to report one PHR on a serving cell and the UE does not need to add TRP identification information at the same time when reporting the PHR, and inform the base station which TRP is currently reported. The PHR. In the prior art, the UE satisfies the triggering condition of the PHR and must report the PHR if there are uplink resources. In the embodiment of this application, in the mTRP scenario, the UE needs to send PUSCH repetitions based on two independent beams/two sets of independent power control parameters, and only reports the PHR corresponding to one beam, and needs to determine the TRP/ The PHR can only be reported when the beam/power control parameters are consistent with the first PUSCH transmission timing. Otherwise, the PHR cannot be reported.

An embodiment of the present application provides a communication device. The structure of the communication device may be as shown in FIG. 28 , including a sending unit 2801 , a processing unit 2802 , and a receiving unit 2803 .

In a specific implementation manner, the communication device can be specifically used to implement the method performed by the terminal device in the embodiment of the present application. The device can be the terminal device itself, or a chip or chipset in the terminal device or a chip used in the chip. to perform part of the function of the associated method.

In some embodiments, the processing unit 2802 is configured to determine the first power headroom and the second power headroom; the sending unit 2801 is configured to report the first power headroom and the second power headroom; wherein, the first The power headroom is determined according to the first PUSCH repetition, the second power headroom is determined according to the second PUSCH repetition, the first PUSCH repetition is associated with the first beam, and the second PUSCH repetition is associated with the second PUSCH repetition The beams are associated. Alternatively, the first power headroom is determined according to a third PUSCH, the second power headroom is determined according to reference PUSCH transmission, and the third PUSCH is associated with the first beam.

In a possible implementation manner, the first power headroom and the second power headroom are carried on a power headroom report MAC CE.

A possible implementation manner, the sending unit 2801 is configured to perform any of the following:

The fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain;

In a possible implementation manner, before the sending unit 2801 reports the first power headroom and the second power headroom, the receiving unit 2803 is further configured to receive first indication information, and the first indication information is used to indicate that the terminal The device sends the first PUSCH repetition and the second PUSCH repetition;

In a possible implementation manner, before the sending unit 2801 reports the first power headroom and the second power headroom, the receiving unit 2803 is further configured to receive second indication information, where the second indication information is used to indicate the The terminal device sends a third PUSCH transmission;

In a possible implementation manner, before the sending unit 2801 reports the first power headroom and the second power headroom, the receiving unit 2803 is further configured to receive third indication information, where the third indication information is used to indicate the The terminal device sends a fourth PUSCH transmission.

A possible implementation manner, a possible implementation manner, the sending unit 2801 is further configured to send the first PUSCH repetition and the second PUSCH repetition.

In other embodiments, the processing unit 2802 is configured to determine the first field and the second field, and the sending unit 2801 is configured to report the first field and the second field. Wherein, the order of reporting the first field and the second field may be sorted according to the ascending order of the serving cell index of the first field, and then sorted according to the ascending order of the serving cell index of the second field. Alternatively, the order of reporting the first field and the second field may first be sorted according to the ascending order of the beam indexes of the first field and the second field, and then sorted according to the ascending order of the serving cell index corresponding to the first field and the second field.

In a possible implementation manner, the receiving unit 2803 is configured to acquire configuration information of a first SRS resource set and configuration information of a second SRS resource set; the first SRS resource set is associated with a first beam, and the second SRS resource set The set is associated with the second beam; or, the first beam is associated with the first power control parameter, and the second beam is associated with the second power control parameter.

sending the first field and the second field on the first PUSCH repetition;

sending the first field and the second field on the second PUSCH repetition;

sending the first field and the second field on the third PUSCH;

The fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain;

In a possible implementation manner, the sending unit 2801 is configured to report the first field and the second field, and the receiving unit 2803 is configured to receive first indication information, and the first indication information is used to instruct the terminal device to send the first field A PUSCH repetition and a second PUSCH repetition;

In a possible implementation manner, the sending unit 2801 is configured to report the first field and the second field, and the receiving unit 2803 is configured to receive second indication information, and the second indication information is used to indicate that the terminal device sending a third PUSCH transmission;

In a possible implementation manner, the sending unit 2801 is configured to report the first field and the second field, and the receiving unit 2803 is configured to receive third indication information, and the third indication information is used to indicate that the terminal device A fourth PUSCH transmission is sent.

In some other embodiments, the communication apparatus may be a network device, for example, the first network device in the embodiment of the present application.

Wherein, the sending unit 2801 is configured to send the first configuration information, the first configuration information is used to indicate the first PUSCH repetition and the second PUSCH repetition; the receiving unit 2803 is configured to receive the first power headroom and the second PUSCH repetition Power headroom; wherein, the first power headroom is determined according to the first PUSCH repetition, the second power headroom is determined according to the second PUSCH repetition, and the first PUSCH repetition is associated with the first beam , the second PUSCH repetition is associated with a second beam. Alternatively, the first power headroom is determined according to a third PUSCH, the second power headroom is determined according to reference PUSCH transmission, and the third PUSCH is associated with the first beam.

A possible implementation manner, the receiving unit 2803 is configured to perform any of the following:

The fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain;

In a possible implementation manner, the first power control parameter or the second power control parameter includes at least one of the following: a basic value of an open-loop power control parameter P0, a path loss compensation factor alpha, a path loss reference signal ID, and a transmission power control TPC command, closed-loop index.

In a possible implementation manner, the receiving unit 2803 is configured to, before receiving the first power headroom and the second power headroom, the sending unit 2801 may also send first indication information, and the first indication information uses Instructing the terminal device to send the first PUSCH repetition and the second PUSCH repetition;

In a possible implementation manner, the receiving unit 2803 is configured to receive the first power headroom and the second power headroom before the sending unit 2801 is configured to send second indication information, and the second indication information uses Instructing the terminal device to send a third PUSCH transmission;

In a possible implementation manner, the receiving unit 2803 is configured to, before receiving the first power headroom and the second power headroom, the sending unit 2801 may also send third indication information, and the third indication information uses to instruct the terminal device to send a fourth PUSCH transmission.

In a possible implementation manner, the receiving unit 2803 may also receive the first PUSCH repetition and the second PUSCH repetition.

Wherein, the sending unit 2801 is configured to send first configuration information, where the first configuration information is used to indicate the first PUSCH repetition and the second PUSCH repetition.

The receiving unit 2803 is configured to receive the first field and the second field; wherein, the order of reporting the first field and the second field may be sorted in ascending order according to the serving cell index of the first field, and then according to the serving cell index of the second field Sort in ascending order. Alternatively, the order of reporting the first field and the second field may first be sorted according to the ascending order of the beam indexes of the first field and the second field, and then sorted according to the ascending order of the serving cell index corresponding to the first field and the second field.

receiving the first field and the second field on the first PUSCH repetition;

receiving the first field and the second field on the second PUSCH repetition;

receiving the first field and the second field on the third PUSCH;

The fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain;

In a possible implementation manner, before the receiving unit 2803 receives the first field and the second field, the sending unit 2801 may also send second indication information, where the second indication information is used to instruct the terminal device to send the first field Three PUSCH transmissions;

In a possible implementation manner, before the receiving unit 2803 receives the first field and the second field, the sending unit 2801 may send third indication information, where the third indication information is used to instruct the terminal device to send the fourth PUSCH transmission.

The division of modules in the embodiments of the present application is schematic, and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present application can be integrated into a processing In the controller, it can also be physically present separately, or two or more modules can be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It can be understood that, for the function or implementation of each module in the embodiment of the present application, further reference may be made to the relevant description of the method embodiment.

In one possible manner, the communication device may be as shown in Figure 29. The communication device may be a communication device or a chip in a communication device, where the communication device may be a terminal device or a network device (for example, the implementation of this application example first network device or second network device). The device may include a processor 2901 , a communication interface 2902 and a memory 2903 . Wherein, the processing unit 2802 may be the processor 2901 . The sending unit 2801 and/or the receiving unit 2803 may be the communication interface 2902 .

The processor 2901 may be a central processing unit (central processing unit, CPU), or a digital processing unit or the like. The communication interface 2902 may be a transceiver, or an interface circuit such as a transceiver circuit, or a transceiver chip or the like. The device also includes: a memory 2903 for storing programs executed by the processor 2901 . The memory 2903 can be a non-volatile memory, such as a hard disk (hard disk drive, HDD) or a solid-state drive (solid-state drive, SSD), etc., and can also be a volatile memory (volatile memory), such as a random access memory (random -access memory, RAM). The memory 2903 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

The processor 2901 is configured to execute the program codes stored in the memory 2903, and is specifically configured to execute the above-mentioned actions of the processing unit 2802, which will not be repeated in this application. The communication interface 2902 is specifically configured to execute the actions of the above-mentioned sending unit 2801 and/or receiving unit 2803, which will not be repeated in this application.

The specific connection medium among the above-mentioned communication interface 2902, processor 2901, and memory 2903 is not limited in this embodiment of the application. In the embodiment of the present application, in FIG. 29, the memory 2903, the processor 2901, and the communication interface 2902 are connected through the bus 2904. The bus is represented by a thick line in FIG. 29, and the connection mode between other components is only for schematic illustration. , is not limited. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 29 , but it does not mean that there is only one bus or one type of bus.

The embodiment of the present application also provides a communication system, which may include the first network device, the second network device, and the terminal device in the embodiment of the present application.

The embodiment of the present application also provides a computer-readable storage medium for storing computer software instructions required to execute the above-mentioned processor, which includes a program required to execute the above-mentioned processor.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application 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.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present application. 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, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus 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 apparatus 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 instructions The device realizes the function 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 onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

A communication method, characterized in that it is applied to a terminal device, comprising:

determining a first power headroom and a second power headroom;

reporting the first power headroom and the second power headroom;

Wherein, the first power headroom is determined according to the first PUSCH repetition, the second power headroom is determined according to the second PUSCH repetition, the first PUSCH repetition is associated with the first beam, and the second PUSCH repetition is associated with the first beam. Two PUSCH repetitions are associated with the second beam;

Alternatively, the first power headroom is determined according to a third PUSCH, the second power headroom is determined according to reference PUSCH transmission, and the third PUSCH is associated with the first beam.
The method of claim 1, wherein

Obtain configuration information of the first SRS resource set and configuration information of the second SRS resource set;

The first set of SRS resources is associated with a first beam, and the second set of SRS resources is associated with a second beam;

Or, the first beam is associated with the first power control parameter, and the second beam is associated with the second power control parameter.
The method according to claim 1, wherein the first power headroom and the second power headroom are carried on a power headroom report medium access control layer control element MAC CE.
The method according to claim 3, wherein the power headroom report MAC CE includes a plurality of power headrooms, and the order of arrangement of the plurality of power headrooms is: first according to the order of the plurality of power headrooms The serving cell indexes corresponding to each power headroom are arranged in ascending order, and then arranged in ascending order according to the beam indexes corresponding to each power headroom of the multiple power headrooms.
The method according to claim 3, wherein the power headroom report MAC CE includes a plurality of power headrooms, and the order of arrangement of the plurality of power headrooms is: first according to the order of the plurality of power headrooms The beam indexes corresponding to each power headroom are arranged in ascending order, and then arranged in ascending order according to the serving cell indexes corresponding to each power headroom of the multiple power headrooms.
The method according to any one of claims 1-5, wherein the reporting of the first power headroom and the second power headroom includes any of the following:

sending the first power headroom and the second power headroom on the first PUSCH repetition;

sending the first power headroom and the second power headroom on the second PUSCH repetition;

sending the first power headroom and the second power headroom on the third PUSCH;

Send the first power headroom and the second power headroom on a fourth PUSCH, where the fourth PUSCH is located in a different location from the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH Serve the community.
The method according to any one of claims 1-6, wherein the fourth PUSCH satisfies any of the following:

The fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain;

The fourth PUSCH overlaps with the first PUSCH repetition in the time domain, and partially overlaps with the second PUSCH repetition in the time domain;

The fourth PUSCH overlaps in the time domain with the first PUSCH repetition, and overlaps in the time domain with the second PUSCH repetition;

The fourth PUSCH does not overlap with the first PUSCH repetition in time domain, and the fourth PUSCH does not overlap with the second PUSCH repetition in time domain.
The method according to any one of claims 1-7, wherein the reporting of the first power headroom and the second power headroom includes any of the following:

When triggering power headroom reporting is related to the first PUSCH repetition, sending the first power headroom and the second power headroom on the first PUSCH repetition;

When triggering power headroom reporting is related to the second PUSCH repetition, sending the first power headroom and the second power headroom on the second PUSCH repetition;

When triggering power headroom reporting is related to the third PUSCH, sending the first power headroom and the second power headroom on the third PUSCH;

When triggering power headroom reporting is related to the fourth PUSCH, sending the first power headroom and the second power headroom on the fourth PUSCH.
The method according to any one of claims 1-8, wherein the first power control parameter or the second power control parameter includes at least one of the following: a basic value of an open-loop power control parameter P0, a path loss compensation factor alpha, path loss reference signal ID, transmission power control TPC command, closed loop index.
The method according to any one of claims 1-7, wherein before reporting the first power headroom and the second power headroom, further comprising:

receiving first indication information, where the first indication information is used to instruct the terminal device to send the first PUSCH repetition and the second PUSCH repetition;

Or, receiving second indication information, where the second indication information is used to instruct the terminal device to send a third PUSCH transmission;

Or, receiving third indication information, where the third indication information is used to instruct the terminal device to send fourth PUSCH transmission.
The method according to any one of claims 1-10, further comprising: sending the first PUSCH repetition and the second PUSCH repetition.
A communication method, characterized in that it is applied to a network device, comprising:

Sending first configuration information, where the first configuration information is used to indicate the first PUSCH repetition and the second PUSCH repetition;

receiving a first power headroom and a second power headroom;

Wherein, the first power headroom is determined according to the first PUSCH repetition, the second power headroom is determined according to the second PUSCH repetition, the first PUSCH repetition is associated with the first beam, and the second PUSCH repetition is associated with the first beam. Two PUSCH repetitions are associated with the second beam;

Alternatively, the first power headroom is determined according to a third PUSCH, the second power headroom is determined according to reference PUSCH transmission, and the third PUSCH is associated with the first beam.
The method according to claim 12, wherein the first configuration information comprises: configuration information of the first SRS resource set and configuration information of the second SRS resource set;

The first set of SRS resources is associated with a first beam, and the second set of SRS resources is associated with a second beam;

Or, the first beam is associated with the first power control parameter, and the second beam is associated with the second power control parameter.
The method according to claim 12 or 13, wherein the first power headroom and the second power headroom are carried on a power headroom report medium access control layer control element MAC CE.
The method according to claim 14, wherein the power headroom report MAC CE includes a plurality of power headrooms, and the order of arrangement of the plurality of power headrooms is: first according to the order of the plurality of power headrooms The serving cell indexes corresponding to each power headroom are arranged in ascending order, and then arranged in ascending order according to the beam indexes corresponding to each power headroom of the multiple power headrooms.
The method according to claim 14, wherein the power headroom report MAC CE includes a plurality of power headrooms, and the order of arrangement of the plurality of power headrooms is: first according to the order of the plurality of power headrooms The beam indexes corresponding to each power headroom are arranged in ascending order, and then arranged in ascending order according to the serving cell indexes corresponding to each power headroom of the multiple power headrooms.
The method according to any one of claims 12-16, wherein the receiving the first power headroom and the second power headroom includes any of the following:

receiving the first power headroom and the second power headroom on the first PUSCH repetition;

receiving the first power headroom and the second power headroom on the second PUSCH repetition;

receiving the first power headroom and the second power headroom on the third PUSCH;

The first power headroom and the second power headroom are received on a fourth PUSCH, where the fourth PUSCH is located at a different location from the first PUSCH repetition, the second PUSCH repetition, and the third PUSCH Serve the community.
The method according to any one of claims 12-17, wherein the fourth PUSCH satisfies any of the following:

The fourth PUSCH overlaps with the first PUSCH repeatedly in the time domain;

The fourth PUSCH overlaps with the first PUSCH repetition in the time domain, and partially overlaps with the second PUSCH repetition in the time domain;

The fourth PUSCH overlaps in the time domain with the first PUSCH repetition, and overlaps in the time domain with the second PUSCH repetition;

The fourth PUSCH does not overlap with the first PUSCH repetition in time domain, and the fourth PUSCH does not overlap with the second PUSCH repetition in time domain.
The method according to any one of claims 13-18, wherein the first power control parameter or the second power control parameter includes at least one of the following: a basic value P0 of an open-loop power control parameter, a path loss compensation factor alpha, path loss reference signal ID, transmission power control TPC command, closed loop index.
The method according to any one of claims 12-19, wherein before receiving the first power headroom and the second power headroom, further comprising:

Sending first indication information, where the first indication information is used to instruct the terminal device to send the first PUSCH repetition and the second PUSCH repetition;

Or, sending second indication information, where the second indication information is used to instruct the terminal device to send a third PUSCH transmission;

Or, sending third indication information, where the third indication information is used to instruct the terminal device to send fourth PUSCH transmission.
The method according to any one of claims 12-20, wherein the method further comprises:

The first PUSCH repetition and the second PUSCH repetition are received.
A communication device, characterized in that the communication device includes a transceiver, a processor, and a memory; program instructions are stored in the memory; when the program instructions are executed, the communication device performs as claimed in claim 1. to the method described in any one of 11.
A communication device, characterized in that the communication device includes a transceiver, a processor, and a memory; program instructions are stored in the memory; when the program instructions are executed, the communication device is executed as claimed in claim 12 to the method described in any one of 21.
A communication system, characterized by comprising the communication device according to claim 22 and the communication device according to claim 23 .
A chip, characterized in that the chip is coupled to a memory in an electronic device, so that the chip invokes program instructions stored in the memory during operation to implement the method according to any one of claims 1 to 11, Alternatively, implement the method as claimed in any one of claims 12-21.
A computer-readable storage medium, characterized in that the computer-readable storage medium includes program instructions, and when the program instructions are run on a device, the device executes the program described in any one of claims 1 to 21. Methods.