WO2022160191A1

WO2022160191A1 - Method and apparatus for determining power

Info

Publication number: WO2022160191A1
Application number: PCT/CN2021/074193
Authority: WO
Inventors: 鲁振伟; 吴毅凌
Original assignee: 华为技术有限公司
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2022-08-04
Also published as: CN116830685A

Abstract

The present application provides a method and apparatus for determining power. The method can comprise: determining the first transmit power of a first link, wherein the first transmit power is less than or equal to a difference between the second transmit power of a second link and an offset, the first link is used for performing communication between a first device and a second device, and the second link is used for performing communication between the first device and a third device; and the first device communicating with the second device by means of the first link according to the first transmit power. Therefore, when the first link and the second link simultaneously perform communication, by considering the power difference limit of the respective transmit power, the present application can reasonably determine the respective transmit power of two links, reduces the interference of the first link to the communication of the second link, and can reduce an influence on the demodulation performance of a tag.

Description

Method and device for determining power

technical field

The present application relates to the field of communications, and further, to a method and apparatus for determining power.

Background technique

Radio Frequency Identification (RFID) technology is a non-contact automatic identification technology. The reader (reader) charges the tag by sending an excitation signal to the low-cost tag (tag), the tag receives the signaling sent by the reader, and sends signaling to the reader through the reflected signal, so that the reader can identify Tag identification, and operations such as reading and writing tags.

Under the separated architecture, the reader can be split into two parts: helper, helper and receiver. The helper is responsible for sending excitation signals to the tag through the forward link, and the receiver is responsible for sending the excitation signal from the tag through the reverse link. The link receives the reflected signal, and at the same time, the receiver generates RFID-related signaling, which is sent to the helper through the forward link, and the helper forwards the tag on the forward link; in a centralized or integrated architecture, reading The controller communicates with the centralized control unit through the forward link, and communicates with the tag through the forward link.

However, due to the wide frequency range of the tag operation, when the RFID signaling of the uplink fronthaul link and the forward link are transmitted at the same time, even if different frequency domain resources in the frequency band are occupied, the uplink fronthaul signal will cause interference and affect the tag. Demodulation of signaling. Therefore, it is a problem to be solved how to avoid the interference caused by the uplink pre-transmission signal and the deviation of the label to the signaling demodulation.

SUMMARY OF THE INVENTION

The present application provides a power determination method, which can reasonably determine the respective transmit powers of the two links by considering the power difference limit of the respective transmit power when the first link and the second link communicate at the same time, and reduce the first link. The interference of the link to the communication of the second link can reduce the influence of the label demodulation performance.

A first aspect provides a method for determining power, the method comprising: determining a first transmit power of a first link, where the first transmit power is less than or equal to a second transmit power of a second link and an offset difference, wherein the first link is used for communication between the first device and the second device, and the second link is used for communication between the first device and the third device; the first link is used for communication between the first device and the third device; A device communicates with the second device over the first link based on the first transmit power.

Based on the above solution, by considering the power difference limit between the first transmit power and the second transmit power, that is, the first transmit power is less than or equal to the difference between the second transmit power of the second link and the offset, the first link can be reduced The interference of the channel to the communication of the second link is reduced, and the impact on the demodulation performance of the label is reduced.

With reference to the first aspect, in some implementations of the first aspect, the determining the first transmit power of the first link includes: acquiring a target parameter set, where the target parameter set includes the first parameter, the second parameter and the a third parameter, the first parameter is the maximum value of the first transmit power, the second parameter is the difference between the second transmit power and the offset, and the third parameter is based on at least the following A parameter is determined: the number of physical resource blocks of the first link, the target power value of the second device, and the downlink path loss value estimated by the first device; the central value of the target parameter is the smallest The parameter is determined as the first transmit power.

With reference to the first aspect, in some implementations of the first aspect, the offset is one of the following: a value determined by the first device, a value preconfigured by the first device, a fixed value, or The value obtained by the second device.

In a second aspect, a method for determining a power headroom is provided. The method includes: acquiring a target parameter set, where the target parameter set includes a first parameter and a second parameter, and the first parameter is a third parameter and a fourth parameter. difference between parameters, the second parameter is the difference between the maximum value of the first transmission power of the first link and the fourth parameter, the third parameter is the difference between the second transmission power and the offset, The first link is used for communication between the first device and the second device, the second link is used for communication between the first device and the third device, and the fourth parameter is based on at least the following: A parameter is determined: the number of physical resource blocks of the first link, the target power value of the second device, and the downlink path loss value estimated by the first device; the central value of the target parameter is the smallest The parameter is determined as the first transmit power headroom of the first link.

With reference to the second aspect, in some implementations of the second aspect, when a preset target condition is met, the first device sends target information to the second device through the first link, the target information Information including the first transmit power headroom.

With reference to the second aspect, in some implementations of the second aspect, when the preset target condition is met, the first device sends the target information to the second device through the first link, including: When the first period is greater than or equal to the first threshold, after the first period, the first device sends the target information to the second device through the first link, wherein the first period The starting point is one of the following: the moment when the first device sends historical information to the second device through the first link, or the first device triggers the sending of the history information to the second device through the first link The moment when the second device sends the historical information, wherein the historical information includes information of the historical transmit power headroom of the first link.

With reference to the second aspect, in some implementations of the second aspect, when the target preset condition is satisfied, the first device sends the target information to the second device through the first link, further comprising: : when the absolute value of the difference between the second transmit power and the third transmit power of the second link is greater than or equal to a second threshold, the first device sends the second device through the first link Sending the target information, wherein the third transmit power is the transmit power of the second link used to calculate the historical transmit power headroom, and the information of the historical transmit power headroom is included in the historical information , the history information is sent by the first device to the second device through the first link.

With reference to the second aspect, in some implementations of the second aspect, the history information is, before the first device sends the target information to the second terminal device through the first link The latest information of the target information time interval.

With reference to the second aspect, in some implementations of the second aspect, the target information further includes a minimum value between the maximum value of the first transmit power and the third parameter; or the target information further includes A target identifier, the target identifier is used to indicate that the target information further includes the maximum value of the first transmission power or the third parameter; or the target information further includes the maximum value of the first transmission power and the third parameter. three parameters; or the target information further includes the maximum value of the first transmit power, the second transmit power, and the offset.

Based on the above solution, while reporting the power headroom, the first device can upload the minimum value between the maximum value of the first transmit power and the third parameter; or the target identifier, where the target identifier is used to indicate that the target information also includes the first The maximum value of the transmission power or the third parameter; or the maximum value of the first transmission power and the third parameter; or the maximum value of the first transmission power, the second transmission power, and the offset. As a result, more information can be reported to facilitate scheduling and power adjustment of the second device. For example, the second device can more accurately perform power for the first device's transmission on the first link and/or the second link. adjustment, or it is more convenient to adjust the number of resources allocated on the first link.

With reference to the second aspect, in some implementations of the second aspect, the offset is one of the following: a value determined by the first device, a value preconfigured by the first device, a fixed value, or The value obtained by the second device.

In a third aspect, a method for determining a power headroom is provided, the method comprising: determining a first transmit power of a first link and a second transmit power of a second link, wherein the first link is used for The first device communicates with the second device, and the second link is used for communication between the first device and the third device; when the target preset condition is not met, the first device is based on the first device. The third transmit power communicates with the second device through the first link, meets the target preset condition, and the value of the third transmit power is lower than the value of the first transmit power; wherein, the target The preset conditions include: the sum of the first transmit power and the second transmit power is less than or equal to the maximum transmit power of the first device, and the difference between the second transmit power and the first transmit power is greater than or equal to or equal to the offset.

Based on the above solution, by considering the power difference limit between the first transmit power and the second transmit power in the target preset condition, that is, the difference between the second transmit power and the first transmit power is greater than or equal to the offset, the first transmit power can be reduced. The interference of the link to the communication of the second link reduces the impact on the demodulation performance of the label.

With reference to the third aspect, in some implementations of the third aspect, the third transmit power is obtained by reducing the first transmit power.

With reference to the third aspect, in some implementations of the third aspect, the obtaining the third transmit power by reducing the first transmit power includes: according to the carrier or channel in the first link priority, reduce the first transmit power to obtain the third transmit power.

With reference to the third aspect, in some implementations of the third aspect, the offset is one of the following: a value determined by the first device, a value preconfigured by the first device, a fixed value, or The value obtained by the second device.

In a fourth aspect, a method for determining a power headroom is provided, the method comprising: acquiring a target parameter set, where the target parameter set includes a first parameter and a second parameter, and the first parameter is the maximum transmission of the first device The difference between the power and the first transmit power of the first link, the second parameter is the difference between the third parameter and the first transmit power, and the third parameter is the second transmit power of the second link and the bias The difference between the shift amounts, wherein the first link is used for communication between the first device and the second device, and the second link is used for communication between the first device and the third device ; Determine the parameter with the smallest value in the target parameter set as the first transmit power headroom of the first link.

Based on the above solution, by considering the power difference limit between the first transmission power and the second transmission power, the interference of the first link to the communication of the second link can be reduced, and the impact on the demodulation performance of the label can be reduced.

With reference to the fourth aspect, in some implementations of the fourth aspect, when a preset target condition is met, the first device sends target information to the second device through the first link, the target information Information including the first transmit power headroom.

With reference to the fourth aspect, in some implementations of the fourth aspect, when the target preset condition is met, the first device sends the target information to the second device through the first link, including: When the first period is greater than the first threshold, after the first period, the first device sends the target information to the second device through the first link, where the starting point of the first period is one of the following: the moment when the first device sends historical information to the second device through the first link, or the first device triggers the transmission to the second device through the first link The moment when the historical information is sent, wherein the historical information includes information of historical transmit power headroom of the first link.

With reference to the fourth aspect, in some implementations of the fourth aspect, when the target preset condition is met, the first device sends the target information to the second device through the first link, further comprising: : when the absolute value of the difference between the second transmit power and the third transmit power of the second link is greater than or equal to a second threshold, the first device sends a target to the second device through the first link information, wherein the third transmit power is the transmit power of the second link used to calculate the historical transmit power headroom, the information of the historical transmit power headroom is included in the historical information, the historical The information is sent by the first device to the second device over the first link.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the history information is, before the first device sends the target information to the second terminal device through the first link The latest information of the target information time interval.

With reference to the fourth aspect, in some implementations of the fourth aspect, the offset is one of the following: a value determined by the first device, a value preconfigured by the first device, a fixed value, or The value obtained by the second device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the target information further includes a minimum value between the maximum transmit power of the first device and the third parameter; or the target information further includes A target identifier, where the target identifier is used to indicate that the target information further includes the maximum transmit power of the first device or the third parameter; or the target information further includes the maximum transmit power of the first device and the or the target information further includes the maximum transmit power of the first device, the second transmit power, and the offset.

Based on the above solution, while reporting the power headroom, the first device can upload the minimum value between the maximum transmit power of the first device and the third parameter; or the target identifier, where the target identifier is used to indicate that the target information also includes the first The maximum transmit power of the device or the third parameter; or the maximum transmit power and the third parameter of the first device; or the maximum transmit power of the first device, the second transmit power, and the offset. As a result, more information can be reported to facilitate scheduling and power adjustment of the second device. For example, the second device can more accurately perform power for the first device's transmission on the first link and/or the second link. adjustment, or it is more convenient to adjust the number of resources allocated on the first link.

In a fifth aspect, a communication device is provided, the communication device comprising: a processing unit configured to determine a first transmit power of a first link, where the first transmit power is less than or equal to a second transmit power of the second link and the offset, wherein the first link is used for communication between a first device and a second device, and the second link is used for communication between the first device and a third device ; a communication unit configured to communicate with the second device through the first link based on the first transmit power.

With reference to the fifth aspect, in some implementations of the fifth aspect, the processing unit is specifically configured to acquire a target parameter set, where the target parameter set includes a first parameter, a second parameter, and a third parameter, and the first parameter A parameter is the maximum value of the first transmit power, the second parameter is the difference between the second transmit power and the offset, and the third parameter is determined according to at least one of the following parameters: the number of physical resource blocks of the first link, the target power value of the second device, and the downlink path loss value estimated by the first device; the parameter with the smallest value in the target parameter set is determined as the first a transmit power.

With reference to the fifth aspect, in some implementations of the fifth aspect, the offset is one of the following: a value determined by the first device, a value preconfigured by the first device, a fixed value, or The value obtained by the second device.

In a sixth aspect, a communication device is provided, the communication device includes: a processing unit configured to acquire a target parameter set, where the target parameter set includes a first parameter and a second parameter, and the first parameter is a third parameter and a The difference between the fourth parameter, the second parameter is the difference between the maximum value of the first transmission power of the first link and the fourth parameter, and the third parameter is the difference between the second transmission power and the offset poor, the first link is used for communication between the first device and the second device, the second link is used for communication between the first device and the third device, and the fourth parameter is based on Determined by at least one of the following parameters: the number of physical resource blocks of the first link, the target power value of the second device, and the downlink path loss value estimated by the first device; the target parameters are set in the The parameter with the smallest value is determined as the first transmit power headroom of the first link.

With reference to the sixth aspect, in some implementations of the sixth aspect, the processing unit is specifically configured to, when the first period of time is greater than or equal to the first threshold, after the first period of time, the first device sends the The second device sends the target information through the first link, wherein the starting point of the first period is one of the following: the first device sends the second device through the first link The moment when historical information is sent, or the moment when the first device triggers sending the historical information to the second device through the first link, where the historical information includes historical transmissions of the first link Power headroom information.

With reference to the sixth aspect, in some implementations of the sixth aspect, the processing unit is further specifically configured to, when the absolute value of the difference between the second transmit power and the third transmit power of the second link is greater than or equal to the second threshold, the first device sends the target information to the second device through the first link, wherein the third transmit power is the amount used to calculate the historical transmit power headroom. The transmission power of the second link, the information of the historical transmission power headroom is included in the historical information, and the historical information is sent by the first device to the second device through the first link.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the history information is, before the first device sends the target information to the second terminal device through the first link The latest information of the target information time interval.

With reference to the sixth aspect, in some implementations of the sixth aspect, the target information further includes a minimum value between the maximum value of the first transmit power and the third parameter; or the target information further includes A target identifier, where the target identifier is used to indicate that the target information further includes the maximum value of the first transmission power or the third parameter; or the target information further includes the maximum value of the first transmission power and the the third parameter; or the target information further includes the maximum value of the first transmit power, the second transmit power, and the offset.

With reference to the sixth aspect, in some implementations of the sixth aspect, the offset is one of the following: a value determined by the first device, a value preconfigured by the first device, a fixed value, or The value obtained by the second device.

In a seventh aspect, a communication device is provided, the communication device comprising: a processing unit configured to determine a first transmit power of a first link and a second transmit power of a second link, wherein the first link used for communication between a first device and a second device, and the second link is used for communication between the first device and a third device; when the target preset condition is not met, the first device Communication with the second device through the first link is based on a third transmit power that satisfies the target preset condition, and the value of the third transmit power is lower than the value of the first transmit power; wherein the The target preset conditions include: the sum of the first transmit power and the second transmit power is less than or equal to the maximum transmit power of the first device, and the sum of the second transmit power and the first transmit power The difference is greater than or equal to the offset.

With reference to the seventh aspect, in some implementations of the seventh aspect, the processing unit is specifically configured to obtain the third transmit power by reducing the first transmit power.

With reference to the seventh aspect, in some implementations of the seventh aspect, the processing unit is further specifically configured to reduce the first transmit power according to the priority of the carrier or channel in the first link, and obtain the third transmit power.

With reference to the seventh aspect, in some implementations of the seventh aspect, the offset is one of the following: a value determined by the first device, a value preconfigured by the first device, a fixed value, or The value obtained by the second device.

In an eighth aspect, a communication apparatus is provided, the communication apparatus includes: a processing unit configured to acquire a target parameter set, wherein the target parameter set includes a first parameter and a second parameter, and the first parameter is a parameter of a first device. The difference between the maximum transmit power and the first transmit power of the first link, the second parameter is the difference between the third parameter and the first transmit power, and the third parameter is the second transmit power of the second link and the offset, wherein the first link is used for communication between the first device and the second device, and the second link is used between the first device and the third device Perform communication; determine the parameter with the smallest value in the target parameter set as the first transmit power headroom of the first link.

With reference to the eighth aspect, in some implementations of the eighth aspect, the processing unit is specifically configured to, when the target preset condition is met, send the first device to the second device through the first link Target information is sent, where the target information includes information of the first transmit power headroom.

With reference to the eighth aspect, in some implementations of the eighth aspect, the processing unit is further specifically configured to, when the first period of time is greater than a first threshold, after the first period of time, the first device sends a message to the The second device sends the target information through the first link, where the starting point of the first period is one of the following: the first device sends the second device through the first link The moment of historical information, or the moment when the first device triggers sending the historical information to the second device through the first link, where the historical information includes the historical transmit power of the first link remaining information.

With reference to the eighth aspect, in some implementations of the eighth aspect, the processing unit is further specifically configured to, when the absolute value of the difference between the second transmit power and the third transmit power of the second link is greater than or equal to a second threshold, the first device sends target information to the second device through the first link, where the third transmit power is the second link used to calculate the historical transmit power headroom The transmission power of the channel, the information of the historical transmission power headroom is included in the historical information, and the historical information is sent by the first device to the second device through the first link.

With reference to the eighth aspect, in some implementation manners of the eighth aspect, the history information is, before the first device sends the target information to the second terminal device through the first link The latest information of the target information time interval.

With reference to the eighth aspect, in some implementations of the eighth aspect, the offset is one of the following:

A value determined by the first device, a value preconfigured by the first device, a fixed value, or a value obtained by the second device.

With reference to the eighth aspect, in some implementations of the eighth aspect, the target information further includes a minimum value between the maximum transmit power of the first device and the third parameter; or the target information further includes A target identifier, where the target identifier is used to indicate that the target information further includes the maximum transmit power of the first device or the third parameter; or the target information further includes the maximum transmit power of the first device and the or the target information further includes the maximum transmit power of the first device, the second transmit power, and the offset.

In a ninth aspect, a communication device is provided, including a processor. The processor is coupled to the memory and can be used to execute instructions in the memory to implement the method of the first aspect to the fourth aspect or any one of possible implementations of the first aspect to the fourth aspect. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface to which the processor is coupled, and the communication interface is used for inputting and/or outputting information. The information includes at least one of instructions and data.

In an implementation manner, the communication apparatus is a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip or a system of chips. When the communication device is a chip or a chip system, the communication interface may be an input/output interface, and may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or a chip system, etc. . The processor may also be embodied as a processing circuit or a logic circuit.

In another implementation manner, the communication apparatus is a chip or a chip system configured in the terminal device.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input/output interface may be an input/output circuit.

In a tenth aspect, a communication apparatus is provided, including a processor. The processor is coupled to the memory and can be used to execute the instructions in the memory, so as to implement the communication method in any possible implementation manner of the first aspect to the fourth aspect. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface to which the processor is coupled, and the communication interface is used for inputting and/or outputting information. The information includes at least one of instructions and data.

In one implementation, the communication apparatus is a network device. When the communication device is a network device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip or a system of chips. When the communication device is a chip or a chip system, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or a chip system. The processor may also be embodied as a processing circuit or a logic circuit.

In another implementation manner, the communication apparatus is a chip or a chip system configured in a network device.

In an eleventh aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a communication device, causes the communication device to implement the first to fourth aspects, and the first to fourth aspects. The method in any possible implementation manner of the fourth aspect.

A twelfth aspect provides a computer program product comprising instructions, which when executed by a computer cause a communication apparatus to implement the communication methods provided in the first to fourth aspects.

In a thirteenth aspect, a communication system is provided, including the aforementioned network device and terminal device.

Description of drawings

FIG. 1 is a schematic diagram of a wireless communication system 100 .

FIG. 2 is a schematic diagram of a radio frequency identification technology.

FIG. 3 is a schematic diagram of a separate radio frequency identification technology.

FIG. 4 is a schematic diagram of a centralized or integrated radio frequency identification technology.

FIG. 5 is another schematic diagram of a radio frequency identification technology.

FIG. 6 is a schematic diagram of power allocation for dual connectivity in an NR system.

FIG. 7 is another schematic diagram of power allocation for dual connectivity in an NR system.

FIG. 8 is a schematic diagram of a method 800 for determining power provided by an embodiment of the present application.

FIG. 9 is a schematic diagram of a method 900 for determining a power headroom provided by an embodiment of the present application.

FIG. 10 is a schematic diagram of a method 1000 for determining power provided by an embodiment of the present application.

FIG. 11 is a schematic diagram of a method 1100 for determining a power headroom provided by an embodiment of the present application.

FIG. 12 is a communication apparatus 1200 provided by an embodiment of the present application.

FIG. 13 is a communication apparatus 1300 provided by an embodiment of the present application.

FIG. 14 is a communication apparatus 1400 provided by an embodiment of the present application.

FIG. 15 is a communication apparatus 1500 provided by an embodiment of the present application.

Detailed ways

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5th generation, 5G) system or NR (New Radio) system, long term evolution (long term evolution, LTE) system, and universal mobile communication system (universal mobile telecommunication system, UMTS), etc.

FIG. 1 is a schematic diagram of a wireless communication system 100 . As shown in FIG. 1 , the wireless communication system 100 may include at least one terminal device, such as the

terminal devices

121 and 122 in FIG. 1 ; the wireless communication system 100 may also include multiple network devices, such as the network device 111 in FIG. 1 . and network device 112. The terminal device 121 in FIG. 1 can communicate with the network device 111 and the network device 112 at the same time, the terminal device 122 can communicate with the network device 111 and the network device 112 at the same time, and the network device 111 can communicate with the terminal device 121 and the terminal device 122 at the same time. For communication, the network device 112 can communicate with the terminal device 121 and the terminal device 122 at the same time. Both the network device and the terminal device can be configured with multiple antennas, and the network device and the terminal device can communicate using the multi-antenna technology.

It should be understood that FIG. 1 is only an exemplary illustration, and the present application is not limited thereto.

It should be understood that the network device in the wireless communication system may be any device with a wireless transceiver function. The equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), Radio Network Controller (Radio Network Controller, RNC), Node B (Node B, NB), Base Station Controller (Base Station Controller, BSC) , base transceiver station (Base Transceiver Station, BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), base band unit (Base Band Unit, BBU), Wireless Fidelity (Wireless Fidelity, WIFI) system The access point (Access Point, AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., can also be 5G, such as, NR, gNB in the system, or, transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitutes a gNB or transmission point , such as baseband unit (BBU), or distributed unit (distributed unit, DU), etc.

In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (active antenna unit, AAU for short). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer. AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, therefore, in this architecture, the higher-layer signaling, such as the RRC layer signaling, can also be considered to be sent by the DU. , or, sent by DU+AAU. It can be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.

To facilitate understanding of the embodiments of the present application, a brief introduction to the radio frequency identification technology is first made below.

Radio frequency identification technology is a non-contact automatic identification technology. FIG. 2 is a schematic diagram of a radio frequency identification technology. As shown in Figure 2, the reader charges the tag by sending an excitation signal to the low-cost tag. The tag receives the signaling sent by the reader, and sends signaling to the reader through the reflected signal. In this way, the reader can Identify the identification of the tag, and perform operations such as reading and writing on the tag.

FIG. 3 is a schematic diagram of a separate radio frequency identification technology. As shown in Figure 3, the reader can be split into two parts: the helper and the receiver. The helper is responsible for sending the excitation signal to the tag through the forward link, and the receiver is responsible for receiving the reflected signal from the tag through the reverse link. At the same time, The receiver generates RFID-related signaling and sends it to the helper through the forward link, and the helper forwards the tag on the forward link.

The fronthaul link between the helper and the receiver is considered to be transmitted by 5G NR technology, that is, the receiver generates RFID signaling and sends it to the helper through the 5G NR air interface technology as a fronthaul link, and the helper forwards it on the forward link. The RFID signaling.

FIG. 4 is a schematic diagram of a centralized or integrated radio frequency identification technology. As shown in Figure 4, under the architecture of centralized or integrated RFID technology, in addition to the excitation and reflection of signals between the reader and the tag through the forward link and reverse link, the reader also interacts with the centralized control The unit (such as a base station) communicates, and the centralized control unit can perform certain scheduling and control on the resources and transmission behavior of the forward link used by the reader. Among them, the communication between the centralized control unit and the reader can use 5G NR technology.

For brevity, the reader under the separated architecture and the reader under the centralized or integrated architecture may be collectively referred to as the reader, and the receiver under the separated architecture and the centralized control unit under the centralized or integrated architecture may be collectively referred to as the centralized control unit. FIG. 5 is another schematic diagram of a radio frequency identification technology. As shown in Figure 5, according to the RFID protocol, the reader continuously transmits, sends the excitation signal waveform continuous wave (CW), or sends RFID signaling (such as Query, QueryRep, etc.) on the forward link. Because the working frequency range of the tag is wide, when the RFID signaling of the uplink fronthaul link and the forward link are transmitted at the same time, even if different frequency domain resources in the frequency band are occupied, the uplink fronthaul link signal will cause interference and affect the tag. Demodulation of signaling. Therefore, in this case, it is necessary to consider how the reader allocates power between the forward link and the fronthaul link.

User equipment (User Equipment, UE) is connected to both base stations, the primary station is an LTE base station, and the secondary station is an NR base station. When the UE is connected to two base stations at the same time, data may be sent at the same time, so power allocation also needs to be performed. FIG. 6 is a schematic diagram of power allocation for dual connectivity in an NR system. As shown in Figure 6, the power upper limit is respectively specified for the NR link and the LTE link between the UE and the two base stations, that is, the actual power does not exceed the power upper limit of each link itself, and the sum of the power upper limit of each link itself Do not exceed the total power upper limit of the UE (eg 23dBm). Among them, P _NR is the power value allocated by the NR link, P _LTE is the power value allocated by the LTE link, P _NR,max and P _LTE,max are the power upper limit values of the NR link and the LTE link, respectively, which need to meet the P _NR ≤P _NR,max , P _LTE ≤P _LTE,max , P _NR,max +P _LTE,max ≤P _UE,max , P _UE,max is the total power upper limit of the UE (eg, 23dBm). However, this method only considers the upper limit of the total power of the UE. In the RFID scenario, the power allocated by the two links may be relatively close, resulting in a signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR) is low, which affects the demodulation of tags.

FIG. 7 is another schematic diagram of power allocation for dual connectivity in an NR system. As shown in Figure 7, that is, the NR link and the LTE link first determine their respective powers. If the sum of the powers does not exceed the upper limit of the total UE power (such as 23dBm), that is, P _NR +P _LTE ≤P _UE,max , it is normal Send; if the power sum exceeds the UE total power upper limit, that is, P _NR +P _LTE >P _UE,max , then reduce the P _NR power to P' _NR , until the sum of the powers of the two links does not exceed the UE total power upper limit , that is, P' _NR +P _LTE ≤P _UE,max . However, this method only considers the upper limit of the total power of the UE. In the RFID scenario, the power allocated by the two links may be relatively close, resulting in a low SINR and affecting the demodulation of the tag.

In view of this, the present application provides a method that can satisfy the power constraints of two links at the same time without affecting the power allocation of label demodulation. P' _NR <P _NR

It should be understood that, without loss of generality, the first device is used to represent the terminal device, the second device is used to represent the network device, the third device is used to represent the label, the first link is used to represent the fronthaul link, and the second link is used to represent the forward link. road.

FIG. 8 is a schematic diagram of a method 800 for determining power provided by an embodiment of the present application. As shown in Figure 8, method 800 includes the following steps:

S801, the first device determines the first transmit power of the first link.

Exemplarily, the first device may determine the first transmit power of the first link, where the first transmit power is less than or equal to the difference between the second transmit power of the second link and the offset, where the first link uses Communication is performed between the first device and the second device, and the second link is used for communication between the first device and the third device.

Specifically, the first device may obtain the target parameter set, and determine the parameter with the smallest value in the target parameter set as the first transmit power. The target parameter set includes a first parameter, a second parameter and a third parameter, the first parameter is the maximum value of the first transmit power, the second parameter is the difference between the second transmit power and the offset, and the third parameter is the pass The power value of the first transmit power obtained by formula calculation.

In a possible implementation manner, the third parameter may be obtained through the number of physical resource blocks of the first link, the target power value of the second device, and the downlink path loss value estimated by the first device.

For example, let the value of the third parameter be P ₁ , where P ₁ =10×log ₁₀ M+P _o +PL. M is the number of physical resource blocks of the first link, _Po is the target power value of the second device, and PL is the downlink path loss value estimated by the first device.

It should be understood that when sending the physical uplink shared channel, M can be the number of physical resource blocks of the physical uplink shared channel of the first link, and _Po can be the target power value of the physical uplink shared channel expected by the second device; when sending In the case of the physical uplink control channel, M may be the number of physical resource blocks of the physical uplink control channel of the first link, and _Po may be the target power value of the physical uplink control channel expected by the second device.

In another possible implementation, the third parameter may be relative to the reference MCS through the number of physical resource blocks of the first link, the path loss compensation factor, and different Modulation and Coding Scheme (MCS) formats. The power offset value of the format, the adjustment amount, the subcarrier spacing configuration factor, the target power value of the second device, and the downlink path loss value estimated by the first device are obtained.

For example, let the value of the third parameter be P ₂ , where P ₂ =10×log ₁₀ (2 ^μ ×M)+P _o +α·PL+ _ΔTF +f. μ is the subcarrier spacing configuration factor, M is the number of physical resource blocks of the first link, P _o is the target power value of the second device, α is the path loss compensation factor, PL is the downlink path loss value estimated by the first device, △ _TF is the power offset value of different MCS formats relative to the reference MCS format, and f is the adjustment amount.

It should also be understood that, in the description of the third parameter in this step, the third parameter may be obtained from the listed parameters, may be obtained through the listed formula, or may be obtained by modifying the listed formula, which is not limited in this application.

Further, the offset may be the SINR threshold value of label demodulation, or determined according to the threshold value. Specifically, the offset may be a value determined by the first device, a value preconfigured by the first device, a fixed value, or a value obtained by the second device, which is not limited in this application.

S802, the first device communicates with the second device through the first link based on the first transmit power.

For example, after determining the first transmit power, the first device may communicate with the second device through a first link based on the first transmit power.

FIG. 9 is a schematic diagram of a method 900 for determining a power headroom provided by an embodiment of the present application. As shown in Figure 9, method 900 includes the following steps:

S901, the first device acquires a target parameter set.

For example, the first device may acquire a target parameter set, where the target parameter set includes a first parameter and a second parameter, the first parameter is the difference between the third parameter and the fourth parameter, and the second parameter is the first parameter of the first link. The difference between the maximum value of the transmit power and the fourth parameter, the third parameter is the difference between the second transmit power and the offset, the first link is used for communication between the first device and the second device, the second link It is used for communication between the first device and the third device, and the fourth parameter is the power value of the first transmit power obtained through formula calculation. For the description of the fourth parameter, reference may be made to the description of the third parameter in S801 , which is not repeated in this application for brevity.

S902, the first device determines the parameter with the smallest value in the target parameter set as the first transmit power headroom of the first link.

For example, after determining the target parameter set, the first device may determine the parameter with the smallest value in the target parameter set as the first transmit power headroom of the first link.

Further, when the target preset condition is satisfied, the first device may send target information to the second device through the first link, where the target information includes information of the first transmit power headroom.

In a possible implementation manner, the target preset condition may be that the first time period is greater than or equal to the first threshold, and after the first time period, the first device may send the target information to the second device through the first link, the first The starting point of a period can be one of the following:

The moment when the first device sends the historical information to the second device through the first link, or the moment when the first device triggers to send the historical information to the second device through the first link, wherein the historical information includes the information of the first link. Information on historical transmit power headroom. Optionally, the history information is information with the latest time interval from the target information before the first device sends the target information to the second terminal device through the first link.

For example, by setting a timer, when the timer runs normally (not exceeding the first time period), the power headroom reporting is prohibited, or the power headroom reporting is prohibited; when the timer times out (more than the first time period) ), you can trigger the power headroom report, or directly report the power headroom.

In another possible implementation, the target preset condition may be that the absolute value of the difference between the second transmit power and the third transmit power of the second link is greater than or equal to the second threshold, wherein the third transmit power is calculated as The transmission power of the second link used by the historical transmission power headroom, the information of the historical transmission power headroom is included in the historical information, and the historical information is sent by the first device to the second device through the first link, wherein the second threshold can be The preset fixed value of the first device may also be configured for the second device, which is not limited in this application.

In another possible implementation manner, the target preset condition may also be a combination of the above two target preset conditions, which is not limited in this application.

Furthermore, the target information may include other information while including the information of the first transmit power headroom. When reporting the power headroom, the format of the corresponding medium access control control element (Medium access control control element) MAC CE can be in different ways.

In one possible implementation, each item of power headroom information is reported through 2 bytes, wherein the last 6 bits of the first byte can be used to indicate the power headroom, and the last 6 bits of the second byte can be used to indicate the power headroom. In order to indicate the actual power upper limit, for example, it may be the minimum value between the maximum value of the first transmit power and the third parameter.

In another possible implementation, each item of power headroom information is reported through 2 bytes, wherein the last 6 bits of the first byte can be used to indicate the power headroom, and the first 2 bits of the second byte are used to indicate the power headroom. 1 bit can be used to indicate, for example, when the target identifier is 1, it indicates that the upper limit of the reported power is the maximum value of the first transmit power, and when the target identifier is 0, it indicates that the upper limit of the reported power is the third parameters, or can also be reported in an opposite indication manner, which is not limited in this application.

In another possible implementation, each item of power headroom information is reported through 3 bytes, the last 6 bits of the first byte can be used to indicate the power headroom, and the second byte reports the first transmission For the maximum value of the power, the third byte reports the third parameter, or it can also be reported in the reverse order, which is not limited in this application. In the case of reporting multiple power headroom information, if the third parameter is the same information for each item, it can be reported only once, such as carrying the report in the first item, or carrying the report in the last item.

In another possible implementation, each item of power headroom information is reported through 4 bytes, the last 6 bits of the first byte can be used to indicate the power headroom, and the second byte reports the first transmission The maximum value of the power, the second transmit power is reported in the third byte, the offset is reported in the fourth byte, or can be reported in other order, which is not limited in this application. In the case of reporting multiple power headroom information, if the second transmit power and offset are the same information for each item, it can be reported only once, such as carrying the report in the first item, or in the last item. Bring reports, etc.

Based on the above solution, while reporting the power headroom, the first device can upload the minimum value between the maximum value of the first transmit power and the third parameter; or the target identifier, where the target identifier is used to indicate that the target information also includes the first The maximum value of the transmission power or the third parameter; or the maximum value of the first transmission power and the third parameter; or the maximum value of the first transmission power, the second transmission power, and the offset. As a result, more information can be reported to facilitate scheduling and power adjustment of the second device. For example, the second device can more accurately perform power for the first device's transmission on the first link and/or the second link. Adjust, or more easily adjust the number of resources allocated on the first link

FIG. 10 is a schematic diagram of a method 1000 for determining power provided by an embodiment of the present application. As shown in Figure 10, method 800 includes the following steps:

S1001, the first device determines the first transmit power of the first link and the second transmit power of the second link.

For example, the first device may determine the first transmit power of the first link and the second transmit power of the second link, where the first link is used for communication between the first device and the second device, and the second The link is used for communication between the first device and the third device.

S1002, when the target preset condition is not met, the first device communicates with the second device through the first link based on the third transmit power, and the target preset condition is met.

For example, when the target preset condition is not met, the first device may communicate with the second device through the first link based on the third transmit power until the target preset condition is met, wherein the value of the third transmit power is lower than the third transmit power. A value of transmit power, the target preset conditions include: the sum of the first transmit power and the second transmit power is less than or equal to the maximum transmit power of the first device, and the difference between the second transmit power and the first transmit power is greater than or equal to the offset shift.

Specifically, when the sum of the first transmit power and the second transmit power is greater than the maximum transmit power of the first device, and the difference between the second transmit power and the first transmit power is less than the offset, the first device may transmit The power communicates with the second device through the first link so as to satisfy the target preset condition. Wherein, the value of the third transmission power is smaller than the value of the first transmission power.

Optionally, the power value of the third transmit power may be a power value obtained by reducing the power value of the power value of the first transmit power. Further, when there are multiple physical channels in the first link for simultaneous transmission, the first device may reduce the first transmission power according to the priority of the carrier or the channel in the first link to obtain the third transmission power.

FIG. 11 is a schematic diagram of a method 1100 for determining a power headroom provided by an embodiment of the present application. As shown in Figure 11, method 1100 includes the following steps:

S1101, the first device acquires a target parameter set.

Exemplarily, the first device may acquire a target parameter set, wherein the target parameter set includes a first parameter and a second parameter, and the first parameter is the difference between the maximum transmit power of the first device and the first transmit power of the first link, The second parameter is the difference between the third parameter and the first transmit power, and the third parameter is the difference between the second transmit power and the offset of the second link, where the first link is used for the first device and the second link. Communication is performed between the two devices, and the second link is used for communication between the first device and the third device.

S1102: The first device determines the parameter with the smallest value in the target parameter set as the first transmit power headroom of the first link.

Further, when the target preset condition is satisfied, the first device may send target information to the second device through the first link, where the target information includes information of the first transmit power headroom. For the description of the target preset condition, reference may be made to the description of the target preset condition in S902, which is not repeated in this application for brevity.

Furthermore, the target information may include other information while including the information of the first transmit power headroom. When reporting the power headroom, the corresponding MAC CE can have different ways.

In one possible implementation, each item of power headroom information is reported through 2 bytes, wherein the last 6 bits of the first byte can be used to indicate the power headroom, and the last 6 bits of the second byte can be used to indicate the power headroom. In order to indicate the actual power upper limit, for example, it may be the minimum value between the maximum transmit power of the first device and the third parameter.

In another possible implementation, each item of power headroom information is reported through 2 bytes, wherein the last 6 bits of the first byte can be used to indicate the power headroom, and the first 2 bits of the second byte are used to indicate the power headroom. 1 bit can be used to indicate, for example, when the target identifier is 1, the upper limit of the indicated power to be reported is the maximum transmit power of the first device; when the target identifier is 0, the upper limit of the reported power is indicated to be the third parameters, or can also be reported in an opposite indication manner, which is not limited in this application.

In another possible implementation, each item of power headroom information is reported through 3 bytes, the last 6 bits of the first byte can be used to indicate the power headroom, and the second byte is reported to the first device The maximum transmit power of , the third parameter is reported in the third byte, or can be reported in the reverse order, which is not limited in this application. In the case of reporting multiple power headroom information, if the third parameter is the same information for each item, it can be reported only once, such as carrying the report in the first item, or carrying the report in the last item.

In another possible implementation, each item of power headroom information is reported through 4 bytes, the last 6 bits of the first byte can be used to indicate the power headroom, and the second byte is reported to the first device The maximum transmit power of , the second transmit power is reported in the third byte, the offset is reported in the fourth byte, or can be reported in other order, which is not limited in this application. In the case of reporting multiple power headroom information, if the second transmit power and offset are the same information for each item, it can be reported only once, such as carrying the report in the first item, or in the last item. Bring reports, etc.

Based on the above solution, while reporting the power headroom, the first device can upload the minimum value between the maximum transmit power of the first device and the third parameter; or the target identifier, where the target identifier is used to indicate that the target information also includes the first The maximum transmit power of the device or the third parameter; or the maximum transmit power and the third parameter of the first device; or the maximum transmit power of the first device, the second transmit power, and the offset. As a result, more information can be reported to facilitate scheduling and power adjustment of the second device. For example, the second device can more accurately perform power for the first device's transmission on the first link and/or the second link. Adjust, or more easily adjust the number of resources allocated on the first link

The various embodiments described herein may be independent solutions, or may be combined according to internal logic, and these solutions all fall within the protection scope of the present application.

It can be understood that, in the above method embodiments, the methods and operations implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be used in the terminal device, and the methods and operations implemented by the network device can also be implemented by A component (eg, chip or circuit) implementation that can be used in a network device.

In the above, the methods provided by the embodiments of the present application are described in detail with reference to FIG. 8 to FIG. 11 . Hereinafter, the communication apparatus provided by the embodiments of the present application will be described in detail with reference to FIG. 12 to FIG. 15 . It should be understood that the description of the apparatus embodiment corresponds to the description of the method embodiment. Therefore, for the content not described in detail, reference may be made to the above method embodiment, which is not repeated here for brevity.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that, each network element, such as a transmitting end device or a receiving end device, includes corresponding hardware structures and/or software modules for performing each function in order to implement the above-mentioned functions. Those skilled in the art should realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the transmitting-end device or the receiving-end device may be divided into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. middle. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation. The following description will be given by taking as an example that each function module is divided corresponding to each function.

FIG. 12 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application. The communication device 1200 includes a transceiver unit 1210 and a processing unit 1220 . The transceiver unit 1210 can implement corresponding communication functions, and the processing unit 1210 is used for data processing. Transceiver unit 1210 may also be referred to as a communication interface or a communication unit.

Optionally, the communication apparatus 1200 may further include a storage unit, which may be used to store instructions and/or data, and the processing unit 1220 may read the instructions and/or data in the storage unit, so that the communication apparatus implements the foregoing method Example.

The communication apparatus 1200 can be used to perform the actions performed by the terminal device in the above method embodiments. In this case, the communication apparatus 1200 can be a terminal device or a component that can be configured in the terminal device, and the transceiver unit 1210 is used to perform the above method. For operations related to sending and receiving on the side of the terminal device in the embodiment, the processing unit 1220 is configured to perform the operations related to the processing on the side of the terminal device in the above method embodiments.

Alternatively, the communication apparatus 1200 may be used to perform the actions performed by the network equipment in the above method embodiments. In this case, the communication apparatus 1200 may be a network equipment or a component configurable in the network equipment, and the transceiver unit 1210 is used to perform the above-mentioned actions. The processing unit 1220 is configured to perform the operations related to the processing on the network device side in the above method embodiments.

As a design, the communication apparatus 1200 is used to perform the actions performed by the terminal device in the above embodiment shown in FIG. 8 , the transceiver unit 1210 is used for: S802; the processing unit 1220 is used for: S801.

As an example, the communication apparatus 1200 is configured to perform the actions performed by the terminal device in the embodiment shown in FIG. 9 above, and the processing unit 1220 is configured to: S901 and S902.

As another example, the communication apparatus 1200 is configured to perform the actions performed by the terminal device in the above embodiment shown in FIG. 10 , the transceiver unit 1210 is used for: S1002 ; the processing unit 1220 is used for: S1001 .

As another example, the communication apparatus 1200 is configured to perform the actions performed by the terminal device in the embodiment shown in FIG. 11 above, and the processing unit 1220 is configured to: S1101 and S1102.

The communication apparatus 1200 may implement steps or processes corresponding to the method 800 to the method 1100 according to the embodiments of the present application executed by the terminal device, and the communication apparatus 1200 may include the method for executing the method 800 to the method 1100 executed by the terminal device. unit. In addition, each unit in the communication device 1200 and the above-mentioned other operations and/or functions are to implement the corresponding processes of the method 800 to the method 1100, respectively.

Wherein, when the communication device 1200 is used to execute the method 800 in FIG. 8 , the transceiver unit 810 can be used to execute the step 802 of the method 800, and the processing unit 1220 can be used to execute the step 801 of the method 800.

When the communication device 1200 is used to execute the method 900 in FIG. 9 , the processing unit 1220 can be used to execute steps 901 and 902 in the method 900 .

When the communication device 1200 is used to perform the method 1000 in FIG. 10 , the transceiver unit 810 can be used to perform the step 1002 in the method 1000 , and the processing unit 1220 can be used to perform the step 1001 in the method 1000 .

When the communication device 1200 is used to execute the method 1100 in FIG. 11 , the processing unit 1220 can be used to execute step 1101 in the method 1100 .

It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiments, and for the sake of brevity, it will not be repeated here.

The communication apparatus 1200 may implement the steps or processes performed by the network equipment corresponding to the methods 800 to 1100 according to the embodiments of the present application, and the communication apparatus 1200 may include a method for performing the method 800 in FIG. 8 to the method 1100 in FIG. 11 . A unit of a method performed by a network device. In addition, each unit in the communication device 1200 and the above-mentioned other operations and/or functions are to implement the corresponding processes of the method 800 to the method 1100, respectively.

The processing unit 1220 in the above embodiments may be implemented by at least one processor or processor-related circuits. The transceiver unit 1210 may be implemented by a transceiver or a transceiver-related circuit. Transceiver unit 1210 may also be referred to as a communication unit or a communication interface. The storage unit may be implemented by at least one memory.

As shown in FIG. 13 , an embodiment of the present application further provides a communication apparatus 1300 . The communication device 1300 includes a processor 1310 coupled with a memory 1320, the memory 1320 is used for storing computer programs or instructions and/or data, the processor 1310 is used for executing the computer programs or instructions and/or data stored in the memory 1320, The methods in the above method embodiments are caused to be executed.

Optionally, the communication apparatus 1300 includes one or more processors 1310 .

Optionally, as shown in FIG. 13 , the communication apparatus 1300 may further include a memory 1320 .

Optionally, the communication device 1300 may include one or more memories 1320 .

Optionally, the memory 1320 may be integrated with the processor 1310, or provided separately.

Optionally, as shown in FIG. 13 , the communication apparatus 1300 may further include a transceiver 1330, and the transceiver 1330 is used for signal reception and/or transmission. For example, the processor 1310 is used to control the transceiver 1330 to receive and/or transmit signals.

As a solution, the communication apparatus 1300 is configured to implement the operations performed by the terminal device in the above method embodiments.

For example, the processor 1310 is configured to implement the processing-related operations performed by the terminal device in the above method embodiments, and the transceiver 1330 is configured to implement the transceiving-related operations performed by the terminal device in the above method embodiments.

As another solution, the communication apparatus 1300 is configured to implement the operations performed by the network device in the above method embodiments.

For example, the processor 1310 is configured to implement the processing-related operations performed by the network device in the above method embodiments, and the transceiver 1330 is configured to implement the transceiving-related operations performed by the network device in the above method embodiments.

This embodiment of the present application further provides a communication apparatus 1400, where the communication apparatus 1400 may be a terminal device or a chip. The communication apparatus 1400 can be used to perform the operations performed by the terminal device in the foregoing method embodiments.

When the communication apparatus 1400 is a terminal device, FIG. 14 shows a schematic structural diagram of a simplified terminal device. As shown in Figure 14, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process communication protocols and communication data, control terminal equipment, execute software programs, and process data of software programs. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data. For the convenience of description, only one memory and one processor are shown in FIG. 14, and in an actual terminal device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device or the like. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.

In the embodiments of the present application, the antenna and the radio frequency circuit with a transceiver function may be regarded as a transceiver unit of the terminal device, and the processor with a processing function may be regarded as a processing unit of the terminal device.

As shown in FIG. 14 , the terminal device includes a transceiver unit 1410 and a processing unit 1420 . The transceiver unit 1410 may also be referred to as a transceiver, a transceiver, a transceiver, or the like. The processing unit 1420 may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.

Optionally, the device for implementing the receiving function in the transceiver unit 1410 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 1410 may be regarded as a transmitting unit, that is, the transceiver unit 1410 includes a receiving unit and a transmitting unit. The transceiver unit may also sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also sometimes be referred to as a receiver, receiver, or receiving circuit, or the like. The transmitting unit may also sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.

It should be understood that FIG. 14 is only an example and not a limitation, and the above-mentioned terminal device including a transceiver unit and a processing unit may not depend on the structure shown in FIG. 14 .

When the communication device 1400 is a chip, the chip includes a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input/output circuit or a communication interface; the processing unit may be a processor, a microprocessor or an integrated circuit integrated on the chip.

This embodiment of the present application further provides a communication apparatus 1500, where the communication apparatus 1500 may be a network device or a chip. The communication apparatus 1500 may be used to perform the operations performed by the network device in the foregoing method embodiments.

When the communication apparatus 1500 is a network device, it is, for example, a base station. FIG. 15 shows a simplified schematic diagram of the structure of a base station. The base station includes part 1510 and part 1520. The 1510 part is mainly used for sending and receiving radio frequency signals and the conversion of radio frequency signals and baseband signals; the 1520 part is mainly used for baseband processing and controlling the base station. The 1510 part may generally be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver. The 1520 part is usually the control center of the base station, which can usually be called a processing unit, and is used to control the base station to perform the processing operations on the network device side in the foregoing method embodiments.

The transceiver unit of the 1510 part, which may also be called a transceiver or a transceiver, etc., includes an antenna and a radio frequency circuit, where the radio frequency circuit is mainly used for radio frequency processing. Optionally, the device used for implementing the receiving function in part 1510 may be regarded as a receiving unit, and the device used for implementing the sending function may be regarded as a sending unit, that is, part 1510 includes a receiving unit and a sending unit. The receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit, and the like, and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, and the like.

The 1520 portion may include one or more single boards, each of which may include one or more processors and one or more memories. The processor is used to read and execute the program in the memory to realize the baseband processing function and control the base station. If there are multiple boards, each board can be interconnected to enhance the processing capability. As an optional implementation manner, one or more processors may be shared by multiple boards, or one or more memories may be shared by multiple boards, or one or more processors may be shared by multiple boards at the same time. device.

For example, in an implementation manner, the transceiving unit in part 1510 is used to perform the steps related to transceiving performed by the network device in the embodiment shown in FIG. 4 ; the part 1520 is used for performing the steps performed by the network device in the embodiment shown in FIG. 4 processing related steps.

For example, in another implementation manner, the transceiving unit in part 1510 is used to perform the steps related to transceiving performed by the network device in the embodiment shown in FIG. 5 ; the part 1520 is used for performing the steps in the embodiment shown in The processing-related steps performed.

It should be understood that FIG. 15 is only an example and not a limitation, and the above-mentioned network device including a transceiver unit and a processing unit may not depend on the structure shown in FIG. 15 .

When the communication device 1500 is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit may be an input/output circuit or a communication interface; the processing unit may be a processor, a microprocessor or an integrated circuit integrated on the chip.

Embodiments of the present application further provide a computer-readable storage medium, on which computer instructions for implementing the method executed by the terminal device or the method executed by the network device in the foregoing method embodiments are stored.

For example, when the computer program is executed by a computer, the computer can implement the method executed by the terminal device or the method executed by the network device in the above method embodiments.

Embodiments of the present application further provide a computer program product including instructions, which, when executed by a computer, cause the computer to implement the method executed by the terminal device or the method executed by the network device in the above method embodiments.

An embodiment of the present application further provides a communication system, where the communication system includes the network device and the terminal device in the above embodiments.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the explanation and beneficial effects of the relevant content in any of the communication devices provided above may refer to the corresponding method embodiments provided above, which are not repeated here. Repeat.

In this embodiment of the present application, the terminal device or the network device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer may include applications such as browsers, address books, word processing software, and instant messaging software.

The embodiments of the present application do not specifically limit the specific structure of the execution body of the methods provided by the embodiments of the present application, as long as the program in which the codes of the methods provided by the embodiments of the present application are recorded can be executed to execute the methods according to the embodiments of the present application. Just communicate. For example, the execution body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.

Various aspects or features of the present application may be implemented as methods, apparatus, or articles of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein may encompass a computer program accessible from any computer-readable device, carrier or media.

The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server, data center, etc., which includes one or more available mediums integrated. Useful media (or computer-readable media) may include, but are not limited to, magnetic media or magnetic storage devices (eg, floppy disks, hard disks (eg, removable hard disks), magnetic tapes), optical media (eg, optical disks, compact discs) , CD), digital versatile disc (digital versatile disc, DVD), etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), card, stick or key drive, etc. ), or semiconductor media (such as solid state disk (SSD), etc., U disk, read-only memory (ROM), random access memory (RAM), etc. that can store programs medium of code.

Various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.

It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application-specific integrated circuits ( application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory mentioned in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM may include the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM) , double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and Direct memory bus random access memory (direct rambus RAM, DR RAM).

It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, the memory (storage module) can be integrated in the processor.

It should also be noted that the memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the above-mentioned units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integration into another system, or some features can be ignored, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, which may be in electrical, mechanical or other forms.

The above-mentioned units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to implement the solution provided in this application.

In addition, each functional unit in each embodiment of the present application may be integrated into one unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.

When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. For example, the computer may be a personal computer, a server, or a network device or the like. Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center over a wire (e.g. coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center. Regarding the computer-readable storage medium, reference may be made to the above description.

The terms "component", "module", "system" and the like are used in this specification to refer to a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device may be components. One or more components may reside within a process and/or thread of execution, and a component may be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on a signal having one or more data packets (eg, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals) Communicate through local and/or remote processes.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A method for determining power, comprising:

Determine the first transmit power of the first link, where the first transmit power is less than or equal to the difference between the second transmit power of the second link and the offset, wherein the first link is used for the first device and the Communication is performed between second devices, and the second link is used for communication between the first device and the third device;

The first device communicates with the second device over the first link based on the first transmit power.
The method according to claim 1, wherein the determining the first transmit power of the first link comprises:

Obtain a target parameter set, where the target parameter set includes a first parameter, a second parameter, and a third parameter, the first parameter is the maximum value of the first transmit power, and the second parameter is the second transmit power The difference between the power and the offset, the third parameter is determined according to at least one of the following parameters:

the number of physical resource blocks of the first link, the target power value of the second device, and the downlink path loss value estimated by the first device;

The parameter with the smallest value in the target parameter set is determined as the first transmit power.
The method according to claim 1 or 2, wherein the offset is one of the following:

A value determined by the first device, a value preconfigured by the first device, a fixed value, or a value obtained by the second device.
A method for determining a power headroom, comprising:

Obtain a target parameter set, where the target parameter set includes a first parameter and a second parameter, the first parameter is the difference between the third parameter and the fourth parameter, and the second parameter is the first transmit power of the first link The difference between the maximum value of and the fourth parameter, the third parameter is the difference between the second transmit power and the offset, and the first link is used for communication between the first device and the second device , the second link is used for communication between the first device and the third device, and the fourth parameter is determined according to at least one of the following parameters:

the number of physical resource blocks of the first link, the target power value of the second device, and the downlink path loss value estimated by the first device;

The parameter with the smallest value in the target parameter set is determined as the first transmit power headroom of the first link.
The method according to claim 4, wherein the method further comprises:

When the target preset condition is satisfied, the first device sends target information to the second device through the first link, where the target information includes the information of the first transmit power headroom.
The method according to claim 5, wherein, when the target preset condition is met, the first device sends the target information to the second device through the first link, comprising:

When the first period is greater than or equal to the first threshold, after the first period, the first device sends the target information to the second device through the first link, wherein the first period The starting point is one of the following:

The moment when the first device sends the historical information to the second device through the first link, or the first device triggers the sending of the historical information to the second device through the first link time, wherein the historical information includes information of historical transmit power headroom of the first link.
The method according to claim 5 or 6, wherein, when the target preset condition is met, the first device sends target information to the second device through the first link, further comprising:

When the absolute value of the difference between the second transmission power and the third transmission power of the second link is greater than or equal to a second threshold, the first device sends the transmission to the second device through the first link the target information, wherein the third transmission power is the transmission power of the second link used for calculating the historical transmission power headroom, and the information of the historical transmission power headroom is included in the historical information, The history information is sent by the first device to the second device through the first link.
The method according to claim 6 or 7, characterized in that the history information is before the first device sends the target information to the second terminal device through the first link The latest information of the target information time interval.
The method according to any one of claims 6 to 8, wherein the target information further comprises a minimum value between a maximum value of the first transmit power and the third parameter; or

The target information further includes a target identifier, and the target identifier is used to indicate that the target information further includes the maximum value of the first transmit power or the third parameter; or

The target information further includes the maximum value of the first transmit power and the third parameter; or

The target information further includes the maximum value of the first transmit power, the second transmit power, and the offset.
The method according to any one of claims 4 to 9, wherein the offset is one of the following:

A value determined by the first device, a value preconfigured by the first device, a fixed value, or a value obtained by the second device.
A method for determining power, comprising:

Determine the first transmit power of the first link and the second transmit power of the second link, where the first link is used for communication between the first device and the second device, and the second link is used for communicating between the first device and the third device;

When the target preset condition is not met, the first device communicates with the second device through the first link based on the third transmit power, and the target preset condition is met, and the value of the third transmit power a value lower than the first transmit power;

Wherein, the target preset conditions include:

The sum of the first transmit power and the second transmit power is less than or equal to the maximum transmit power of the first device, and the difference between the second transmit power and the first transmit power is greater than or equal to an offset .
The method according to claim 11, wherein the method further comprises:

The third transmit power is obtained by reducing the first transmit power.
The method according to claim 12, wherein the obtaining the third transmit power by reducing the first transmit power comprises:

The third transmit power is obtained by reducing the first transmit power according to the priority of the carrier or the channel in the first link.
The method according to any one of claims 11 to 13, wherein the offset is one of the following:

A value determined by the first device, a value preconfigured by the first device, a fixed value, or a value obtained by the second device.
A method for determining a power headroom, comprising:

Obtain a target parameter set, where the target parameter set includes a first parameter and a second parameter, the first parameter is the difference between the maximum transmit power of the first device and the first transmit power of the first link, and the second parameter is the difference between the third parameter and the first transmit power, the third parameter is the difference between the second transmit power of the second link and the offset, wherein the first link is used for the first communicating between a device and a second device, and the second link is used for communicating between the first device and a third device;

The parameter with the smallest value in the target parameter set is determined as the first transmit power headroom of the first link.
The method of claim 15, wherein the method further comprises:

When the target preset condition is satisfied, the first device sends target information to the second device through the first link, where the target information includes the information of the first transmit power headroom.
The method according to claim 16, wherein when a preset target condition is met, the first device sends the target information to the second device through the first link, comprising:

When the first period is greater than the first threshold, after the first period, the first device sends the target information to the second device through the first link, where the starting point of the first period is is one of the following:

The moment when the first device sends the historical information to the second device through the first link, or the first device triggers the sending of the historical information to the second device through the first link time, wherein the historical information includes information of historical transmit power headroom of the first link.
The method according to claim 16 or 17, wherein when a preset target condition is met, the first device sends the target information to the second device through the first link, further comprising:

When the absolute value of the difference between the second transmission power and the third transmission power of the second link is greater than or equal to a second threshold, the first device sends target information to the second device through the first link , wherein the third transmit power is the transmit power of the second link used to calculate the historical transmit power headroom, the information of the historical transmit power headroom is included in the historical information, and the historical information Sent by the first device to the second device through the first link.
The method according to claim 17 or 18, characterized in that the history information is, before the first device sends the target information to the second terminal device through the first link, communicated with the The latest information of the target information time interval.
The method according to any one of claims 15 to 19, wherein the offset is one of the following:

A value determined by the first device, a value preconfigured by the first device, a fixed value, or a value obtained by the second device.
The method according to any one of claims 15 to 20, wherein the target information further comprises a minimum value between the maximum transmit power of the first device and the third parameter; or

The target information further includes a target identifier, and the target identifier is used to indicate that the target information further includes the maximum transmit power of the first device or the third parameter; or

The target information further includes the maximum transmit power of the first device and the third parameter; or

The target information further includes the maximum transmit power of the first device, the second transmit power, and the offset.
A communication device, characterized in that it includes:

memory for storing computer instructions;

a processor for executing computer instructions stored in the memory to cause the communication device to perform the method of any one of claims 1 to 3 or the method of any one of claims 4 to 10 or a method as claimed in any one of claims 11 to 14 or a method as claimed in any one of claims 15 to 21 .
A computer-readable storage medium, characterized in that a computer program is stored thereon, and when the computer program is executed by a communication device, the communication device causes the communication device to execute the method according to any one of claims 1 to 3 or The method of any one of claims 4 to 10 or the method of any one of claims 11 to 14 or the method of any one of claims 15 to 21 .