WO2019192308A1

WO2019192308A1 - Wireless communication method and device

Info

Publication number: WO2019192308A1
Application number: PCT/CN2019/078262
Authority: WO
Inventors: 郭英昊; 纪刘榴
Original assignee: 华为技术有限公司
Priority date: 2018-04-04
Filing date: 2019-03-15
Publication date: 2019-10-10
Also published as: CN110351822A; CN110351822B

Abstract

Provided in the embodiments of the present invention are a wireless communication method and a device. In the present method and device, an access network device configures for a terminal device at least one sounding reference signal (SRS) on a frequency domain resource. The terminal device determines the power headroom information of the frequency domain resource on the basis of part or all of said at least one SRS. When a physical channel can be sent on the frequency domain resource, the terminal device can also determine the power headroom information of the frequency domain resource on the basis of part or all of the at least one SRS and the physical channel. The terminal device sends the determined power headroom information to the access network device. The present method and device can realize more accurate power headroom information reporting, thus helping to realize independent power control and better resource allocation for SRS's and physical channels.

Description

Method and device for wireless communication

Technical field

The present application relates to the field of communications and, more particularly, to a method and apparatus for wireless communication.

Background technique

In a Long Term Evolution (LTE) system, a terminal device sends a Power Headroom Report (PHR) to an evolved base station (eNB). The PHR is a Media Access Control (MAC) Control Element (CE) that contains Power Headroom (PH) information. The PHR can provide the eNB with information for power control and scheduling. The eNB may select an appropriate modulation and coding scheme (MCS), resource size, power control parameters, and the like according to the PHR for the uplink transmission of the terminal device.

In LTE, for a serving cell configured for a terminal device, if the serving cell is configured to transmit only a Sounding Reference Signal (SRS), the terminal device may report the PH of the SRS of the serving cell. It is called Type 3 PH in LTE; otherwise, the terminal device reports the PH of the Physical Uplink Shared Channel (PUSCH), which is called Type 1 PH in LTE, or if the terminal device is configured with physical in the serving cell. On the uplink control channel (PUCCH), the terminal device reports Type1 PH and Type 2 PH, where Type 2 PH is the PH of PUSCH and PUCCH. However, the above-mentioned method of reporting PH can no longer satisfy the 5th Generation (5G) New Radio (NR) system. Therefore, it is urgent to propose a new solution.

Summary of the invention

Embodiments of the present invention provide a method and apparatus for wireless communication to implement more accurate power headroom information reporting, better power control, and resource allocation.

In a first aspect, an embodiment of the present invention provides a method for wireless communication. The method includes: the terminal device obtains first configuration information, where the first configuration information is used to configure at least one listening reference signal SRS of the frequency domain resource. The terminal device determines the first SRS on the first time period of the frequency domain resource according to the first configuration information. The first SRS includes one or more of the at least one SRS; the terminal device determines power headroom information of the frequency domain resource according to the first SRS. Then, the terminal device sends power headroom information of the frequency domain resource on the first time period. With the solution of the embodiment of the present invention, the terminal device can report more accurate power headroom information, thereby facilitating the access network device to perform better power control or resource allocation.

In a possible design, the terminal device determines power headroom information of the frequency domain resource according to the first SRS and the physical channel on the first time period of the frequency domain resource. With the solution of the embodiment of the present invention, the terminal device can report the SRS and the physical channel power headroom information, thereby facilitating independent power control of the SRS and the physical channel by the access network device.

In a possible design, the terminal device determines the first SRS according to the manner in which the at least one SRS is sent. The terminal device and the access network device can apply the same rule to determine the first SRS so as to understand the first SRS. At the same time, signaling overhead can be reduced.

In a possible design, the terminal device determines the first SRS according to the function of the at least one SRS. The terminal device and the access network device can apply the same rule to determine the first SRS so as to understand the first SRS. At the same time, signaling overhead can be reduced.

In a possible design, the terminal device determines the first SRS according to the time domain position of the at least one SRS in the first time period. The terminal device and the access network device can apply the same rule to determine the first SRS so as to be consistent with the first SRS. At the same time, signaling overhead can be reduced.

In a possible design, the terminal device determines the first SRS according to the identification information of the at least one SRS. The terminal device and the access network device can apply the same rule to determine the first SRS so as to understand the first SRS. At the same time, signaling overhead can be reduced.

In one possible design, the first SRS includes all of the SRSs in at least one SRS. The terminal device and the access network device can apply the same rule to determine the first SRS so as to understand the first SRS. At the same time, more detailed power headroom information can be reported.

In a possible design, the terminal device obtains second configuration information, where the second configuration information is used to indicate that the terminal device separately receives the power control command of the physical channel on the frequency domain resource and the SRS on the frequency domain resource, or And the terminal device respectively picks up the power control command of the physical channel and the SRS, or the indication information that the terminal device uses to transmit the second maximum transmit power of the SRS and the second maximum transmit power on the physical channel.

In a possible design, the indication information that the second maximum transmit power of the terminal device for transmitting the SRS and the second maximum transmit power for the physical channel are different includes the second maximum transmit power of the terminal device for transmitting the SRS. And a second maximum transmit power for use on the physical channel, wherein the second maximum transmit power for transmitting the SRS is different than the second maximum transmit power for the physical channel.

In a second aspect, an embodiment of the present invention provides a method for wireless communication. The method includes: the access network device sends first configuration information to the terminal device, where the first configuration information is used to configure at least one listening reference signal (SRS) of the frequency domain resource; and the first time when the access network device determines the frequency domain resource a first SRS on the segment, the first SRS includes one or more of the at least one SRS; the access network device receives power headroom information of the frequency domain resource sent by the terminal device on the first time period, where The power headroom information is determined based on the first SRS. With the solution of the embodiment of the present invention, the access network device can obtain more accurate power headroom information, thereby facilitating access network devices for better power control or resource allocation.

In one possible design, the power headroom information is determined based on the physical channel on the first time period of the first SRS and the frequency domain resource. With the solution of the embodiment of the present invention, the access network device can obtain SRS and physical channel power headroom information to better implement independent power control of the SRS and the physical channel.

In a possible design, the access network device determines the first SRS according to the manner in which the at least one SRS is sent. The terminal device and the access network device can apply the same rule to determine the first SRS so as to understand the first SRS. At the same time, signaling overhead can be reduced.

In one possible design, the access network device determines the first SRS based on the functionality of the at least one SRS. The terminal device and the access network device can apply the same rule to determine the first SRS so as to understand the first SRS. At the same time, signaling overhead can be reduced.

In a possible design, the access network device determines the first SRS according to the time domain location of the at least one SRS in the first time period. The terminal device and the access network device can apply the same rule to determine the first SRS so as to understand the first SRS. At the same time, signaling overhead can be reduced.

In a possible design, the access network device determines the first SRS according to the identification information of the at least one SRS. The terminal device and the access network device can apply the same rule to determine the first SRS so as to understand the first SRS. At the same time, signaling overhead can be reduced.

In a possible design, the access network device sends the second configuration information to the terminal device, where the second configuration information is used to indicate that the access network device separately sends the physical channel and the frequency domain resource on the frequency domain resource. The power control command of the SRS, or the power control command sent by the access network device to the physical channel and the SRS, or the second maximum transmit power used by the terminal device to transmit the SRS and the second maximum transmit power used on the physical channel Different indication information, or indication information that the terminal device uses the second maximum transmit power for transmitting the SRS on the frequency domain resource and the second maximum transmit power on the physical channel on the frequency domain resource is different. .

In a third aspect, an embodiment of the present invention provides a communication apparatus. The apparatus includes a processor and a transceiver coupled to the processor, a processor configured to obtain first configuration information, the first configuration information configured to configure at least one listening reference signal (SRS) of the frequency domain resource, and a processor, And a method for determining, according to the first configuration information, a first SRS on a first time period of a frequency domain resource, where the first SRS includes one or more of the at least one SRS; The first SRS determines power headroom information of a frequency domain resource; the transceiver is configured to send power headroom information on the first time period.

In a possible design, the processor is further configured to determine, according to the first SRS and the physical channel on the first time period of the frequency domain resource, power headroom information of the frequency domain resource.

In a possible design, the processor is configured to determine the first SRS according to a sending manner of the at least one SRS.

In one possible design, the processor is configured to determine the first SRS according to the function of the at least one SRS.

In a possible design, the processor is configured to determine the first SRS according to the time domain location of the at least one SRS in the first time period.

In a possible design, the processor is configured to determine the first SRS according to the identifier information of the at least one SRS.

In one possible design, the first SRS includes all of the SRSs in at least one SRS.

In a possible design, the processor is configured to obtain second configuration information, where the second configuration information is used to indicate that the device separately receives a power control command of the physical channel and the SRS, or the device separately receives the frequency domain resource. a power control command for the SRS on the physical channel and the frequency domain resource; or indication information for transmitting the second maximum transmit power of the SRS and the second maximum transmit power on the physical channel; or The second maximum transmit power of the SRS transmitted on the frequency domain resource and the indication information for the second maximum transmit power on the physical channel on the frequency domain resource are different.

In one possible design, the indication information that the second maximum transmit power for transmitting the SRS is different from the second maximum transmit power for the physical channel includes a second maximum transmit power that the apparatus uses to transmit the SRS and is used for A second maximum transmit power on the physical channel, wherein the second maximum transmit power for transmitting the SRS is different than the second maximum transmit power for transmitting on the physical channel.

In one possible design, the indication information for transmitting the second maximum transmit power of the SRS on the frequency domain resource and the second maximum transmit power on the physical channel on the frequency domain resource comprises means for Transmitting a second maximum transmit power of the SRS on the frequency domain resource and a second maximum transmit power on the physical channel on the frequency domain resource, wherein the second maximum transmit power for transmitting the SRS on the frequency domain resource is used The second maximum transmit power on the physical channel on the frequency domain resource is different.

In combination with the above aspects or possible designs, in one possible design, the physical channel includes a physical uplink shared channel and/or a physical uplink control channel.

With reference to the foregoing aspects or possible designs, in a possible design, the first configuration information includes at least one of the following: indication information indicating a manner of sending the at least one SRS, where the sending manner includes: An aperiodic transmission mode, or a semi-static transmission mode, or a periodic transmission mode; indication information for indicating a function of the at least one SRS, wherein the function includes: for codebook-based transmission And/or for non-codebook based transmission, and/or for SRS handover, and/or for beam management; time domain location information of said at least one SRS; identification information of said at least one SRS; The identification information of the frequency domain resource.

In combination with the above aspects or possible designs, in one possible design, the power headroom information includes: one or more first power headroom information, wherein the first power headroom information is a terminal device in a frequency domain resource. The difference between the maximum transmit power and the power of the second SRS transmitted by the terminal device, the second SRS including one of the at least one SRS included in the first SRS. The terminal device can report power headroom information of each SRS in multiple SRSs.

In combination with the above aspects or possible designs, in one possible design, the power headroom information includes: one or more second power headroom information, wherein the second power headroom information is a terminal device in a frequency domain resource. a difference between a first maximum transmit power and a power of the terminal device on the first physical channel, and when the physical channel includes multiple channels, the first physical channel is one of a plurality of channels, and when the physical channel includes a channel, the first A physical channel is the channel. The terminal device can report power headroom information of each channel included in the physical channel.

In combination with the above aspects or possible designs, in one possible design, the power headroom information includes: third power headroom information, wherein the third power headroom information is the first of the terminal equipment in the frequency domain resource. The difference between the maximum transmit power and the power of the terminal device to transmit the first SRS. The embodiment of the present invention can reduce the signaling overhead of reporting the power headroom information of the SRS.

In combination with the above aspects or possible designs, in one possible design, the power headroom information includes: fourth power headroom information, wherein the fourth power headroom information is a first maximum transmission of the terminal equipment in the frequency domain resource. The difference between the power and the power of the terminal device on the physical channel. The embodiment of the invention can reduce the signaling overhead of reporting the power headroom information of the physical channel.

In combination with the above aspects or possible designs, in one possible design, the power headroom information includes: a fifth power headroom information, wherein the fifth power headroom information is a first maximum transmission of the terminal device in the frequency domain resource. The difference between the power and the first transmit power, wherein the first transmit power is the sum of the power of the first SRS transmitted by the terminal device and the power on the physical channel. The embodiment of the present invention can reduce the signaling overhead of reporting the power headroom information of the SRS and the physical channel.

In combination with the foregoing aspects or possible designs, in one possible design, the power headroom information may further include: one or more first indication information, where the first indication information is used to indicate at least one SRS included in the first SRS. The identification information of one SRS, the first indication information is associated with the first power headroom information. By reporting the identification information of the SRS, the access network device can know which power reserve information of the SRS or the SRS is reported by the terminal.

In combination with the above aspects or possible designs, in one possible design, the power headroom information may further include: a first maximum transmit power of the terminal device in the frequency domain resource; and/or the terminal device sends a first maximum transmit power of the first SRS; and/or a first maximum transmit power of the terminal device on the physical channel; and/or a first maximum transmit power of the terminal device. By reporting the first maximum transmit power, the access network device can learn the first maximum transmit power used by the terminal device to determine the power headroom information, thereby facilitating power control or resource allocation.

In combination with the above aspects or possible designs, in a possible design, when the first SRS of the frequency domain resource included in the power headroom information includes the same maximum transmit power, only one of the power headroom information is included. a first maximum transmit power, and the one first maximum transmit power is associated with the first SRS. The signaling overhead of reporting the first maximum power of the first SRS may be saved.

In combination with the above aspects or possible designs, in a possible design, when the first maximum transmit power of the first SRS of the frequency domain resource included in the power headroom information is the same as the first maximum transmit power of the physical channel, the power The remaining information may include only one first maximum transmit power, and the one first maximum transmit power is associated with the first SRS and the physical channel. The signaling overhead of reporting the first maximum power of the first SRS and the physical channel can be saved.

In combination with the foregoing aspects or possible designs, in one possible design, the power headroom information may further include: second indication information, used to indicate the identifier information of the frequency domain resource. By reporting the identification information of the frequency domain resource, the access network device can know which power resource information of the frequency domain resource is reported by the terminal.

In combination with the above aspects or possible designs, in one possible design, the frequency domain resources may be: a serving cell, a primary serving cell, a secondary serving cell, a component carrier (CC), and a supplemental uplink (Supplementary Uplink). , SUL), or BandWidth Parts (BWP).

In combination with the above aspects or possible designs, in one possible design, the first time period may be a subframe, a time slot, a mini time slot, a symbol, and a transmission time interval.

In a fifth aspect, an embodiment of the present invention provides a computer readable storage medium for storing instructions that, when executed on a memory, cause the processor to perform the above aspects or possible design methods.

In a sixth aspect, an embodiment of the present invention provides a communication apparatus. The communication device includes a processor and a memory for storing instructions, and a processor for reading and executing instructions in the memory such that the communication device performs the methods of the various aspects or possible designs described above.

DRAWINGS

FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the present application is applied.

FIG. 2 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

FIG. 3 is a schematic structural diagram of an access network device according to an embodiment of the present application.

4 is a schematic flow chart of an embodiment of the present application.

FIG. 5 is a schematic diagram of a time domain location of transmitting an SRS according to an embodiment of the present application.

FIG. 6 is a schematic diagram of the power headroom information content 1 of the embodiment of the present application.

FIG. 7 is a schematic diagram of the power headroom information content 2 of the embodiment of the present application.

FIG. 8 is a schematic diagram of the power headroom information content 3 of the embodiment of the present application.

FIG. 9 is a schematic diagram of the power headroom information content 4 of the embodiment of the present application.

FIG. 10 is a schematic diagram of the power headroom information content 5 of the embodiment of the present application.

FIG. 11 is a schematic diagram of the power headroom information content 6 of the embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be noted that, in the case of no conflict, the technical solutions and features in the various embodiments of the present invention may be combined with each other.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, and an LTE time division duplex ( Time division duplex (TDD), code division multiple access (CDMA) system, Universal Mobile Telecommunication System (UMTS), wireless local area network (WLAN), and other current communication systems, And, in particular, it is applied to a future 5G new radio (NR) system or a 5G system or a communication system based on orthogonal frequency division multiplexing (OFDM) technology. This application describes a 5G system as an example, but is not limited to a 5G system. The technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems, as the new service scenario occurs and the network architecture evolves.

1 shows an example of a communication system to which the embodiment of the present invention is applied, which includes an access network device 101 and terminal devices 111 to 112 (for simplicity, only two terminal devices are shown in FIG. But does not mean that there can only be 2 terminal devices. In fact, there can be any number of terminal devices), and serving cells 121-122 (for the sake of simplicity, only two serving cells are shown in Figure 1, but It does not mean that there can only be 2 service cells. In fact, there can be any number of service cells). The access network device 101 provides services for the terminal devices 111-112 through one or more of the serving cells 121-122, that is, the terminal devices 111-112 pass through one or more of the serving cells 121-122 and the access network device 101. Communicate. It should be understood that FIG. 1 is only a schematic diagram, and other communication devices may be included in the communication system, such as core network devices, wireless relay devices, and wireless backhaul devices (not shown in FIG. 1). In the network structure shown in FIG. 1, the access network device 101 communicates with the terminal device 111 through the serving cell 121, and the access network device 101 communicates with the terminal device 112 through the serving cell 121 and the serving cell 122. The access network device 101 of the serving cell 121 and the serving cell 122 may correspond to the same or two different physical sites (e.g., macro base station and micro base station), and different stations may communicate. The terminal devices 111 to 112 may be 1) a terminal device having data to be transmitted; 2) a terminal device that needs to retransmit data; 3) a terminal device having no uplink data, and the like.

In the embodiment of the present invention, an access network device (for example, the access network device 101) is a device deployed in a wireless access network to provide a wireless communication function for the terminal device. The access network device may include various forms of radio access network devices, macro base stations, micro base stations (also referred to as small stations), relay stations, access points, and the like. The access network device may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or e- in LTE or eLTE). NodeB), base station gNB ((next) generation NodeB) in 5G (fifth generation), base station in future mobile communication system, access node in WiFi system or roadside unit (RSU) in V2X communication Etc., or a chip or system on chip (SOC) inside the access network device. The embodiments of the present application do not limit the specific technologies and specific device modes adopted by the access network device. For convenience of description, in the present application, an access network device is sometimes also referred to as a base station, or a wireless access device.

In the embodiment of the present invention, the terminal device may also be referred to as a user equipment (User Equipment, UE), a mobile station (Mobile Station, MS), a mobile terminal (MT), etc., and the terminal device may be wirelessly accessed. A Radio Access Network (RAN) communicates with one or more core networks. The terminal device can be a device with wireless transceiving function, which can be deployed on land, indoors or outdoors, handheld or on-board; it can also be deployed on the water surface (such as a ship, etc.); it can also be deployed in the air (such as airplanes, balloons). And satellites, etc.). The terminal device may be a mobile phone, a tablet (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and industrial control ( Wireless terminal in industrial control, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, transportation safety A wireless terminal, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like. For convenience of description, in the present application, a terminal device is sometimes referred to as a UE.

In the embodiment of the present invention, the access network device and the terminal device and the terminal device and the terminal device can communicate through a spectrum below 6G megahertz (GHz), or can communicate through a spectrum above 6 GHz. It is possible to simultaneously use a spectrum below 6 GHz and a spectrum above 6 GHz for communication. The embodiment of the present application does not limit the spectrum resources used between the radio access network device and the terminal device. The access network device and the terminal device and between the terminal device and the terminal device can communicate through a licensed spectrum, or can communicate through an unlicensed spectrum, or can simultaneously pass the licensed spectrum and the license-free. The spectrum communicates. For example, the serving cells 121-122 may be serving cells based on a licensed spectrum. In this case, the access network device 101 and the terminal devices 111-112 may perform data communication on the licensed spectrum, in the serving cells 121-122. Some or all of the serving cells may be serving cells based on an unlicensed spectrum. At this time, the access network device 101 and the terminal devices 111 to 112 may perform data communication on an unlicensed spectrum. The above scenario of using the licensed spectrum or the unlicensed spectrum may be a single-cell communication system, a carrier aggregation (CA) communication system, a Mass Carrier Aggregation (MCA) communication system, and dual connectivity (Dual Connectivity). , DC) communication system, Multiple Connectivity (MC) communication system, coordinated multiple point transmission (CoMP) communication system, NR-NRDC, Multi-RAT (Radio Access Network) DC (MRDC) ), a communication system that uses licensed spectrum in a 5G communication system or a future communication system. The above scenario may also be a LAA, eLAA, FeLAA system, 5G communication system in an LTE system, or a communication system using an unlicensed spectrum (eg, 5150-5350 MHz) in a future communication system, working independently in an unlicensed spectrum (unlicensed) Spectrum) systems such as the MultiFire system.

In the embodiment of the present invention, one or more of the serving cells 121-122 may be replaced by a primary serving cell, a secondary serving cell, a component carrier (CC), a supplementary uplink (SUL), or BandWidth Parts (BWP).

For ease of understanding, SUL and BWP are described below.

SUL: The use of spectrum in NR will extend to higher frequency bands, such as C-band and higher. However, data transmission in the high frequency band has a large path attenuation and poor coverage. For the downlink, because the access network equipment has a large transmission power, a strong RF device and more antennas, the attenuation problem of the high frequency data channel can be alleviated. However, for the uplink, due to the limited capabilities of the terminal device, the problem of small coverage is difficult to solve. Therefore, the design of SUL is proposed in NR, which is to supplement the low frequency link to improve the reliability and coverage of the uplink based on the original high frequency link.

BWP: In order to adapt to the high bandwidth of high frequency transmission, high frequency, different air interface formats and higher terminal equipment capability requirements, the concept of BWP is introduced in NR. The main application scenarios include at least one of the following scenarios: (1) Supporting the smaller bandwidth capability of the terminal equipment; (2) by changing the energy consumption of the terminal equipment with less bandwidth; (3) supporting the frequency division multiplexing of different basic parameter sets (numerology); (4) supporting the discontinuous spectrum; 5) Support for forward compatibility.

FIG. 2 shows a wireless communication device according to an embodiment of the present invention. The wireless communication device can be used as the terminal devices 111-112 or applied to the devices in the terminal devices 111-112. Hereinafter, the wireless communication device shown in FIG. 2 will be described as an example of the terminal device. The terminal device is capable of performing the method provided by the embodiment of the present invention. The terminal device may be any one of the two terminal devices 111 to 112. The terminal device includes a transceiver 201, a processor 204 for implementing a wireless communication function, and a memory 203.

The transceiver 201 can be used to support the transmission and reception of information between the terminal devices 111-112 and the access network device 101. On the downlink, the downlink radio frequency signal from the access network device is received via the antenna, coordinated by the transceiver 201, and the baseband signal is extracted and output to the processor 204 for processing to recover the service data sent by the access network device. And / or signaling information. On the uplink, the baseband signal carrying the traffic data and/or signaling messages to be transmitted to the access network device is modulated by the transceiver 201 to generate an uplink radio frequency signal and transmitted to the access via the antenna. Network equipment. The transceiver 201 can also be used to support the transmission and reception of information between the terminal devices 111-112. The transceiver 201 can include independent receiver and transmitter circuits, or can be integrated in the same circuit to implement transceiving functions.

Processor 204 can be a modem processor. Processor 204 can include a baseband processor (BBP) that processes the digitized received signal to extract information or data bits carried in the signal. For this purpose, the BBP is typically implemented by one or more digital signal processors (DSPs) within the processor 204 or by separate integrated circuits (ICs).

For example, as shown in FIG. 2, processor 204 can include an encoder 2041, a modulator 2042, a decoder 2043, and a demodulator 2044. The encoder 2041 is for encoding the signal to be transmitted. For example, the encoder 2041 can be configured to receive traffic data and/or signaling messages to be transmitted on the uplink (or on the side link) and process the traffic data and signaling messages (eg, format, encode, Or intertwined, etc.). Modulator 2042 is used to modulate the output signal of encoder 2041. For example, the modulator can perform symbol mapping and/or modulation processing on the encoder's output signals (data and/or signaling) and provide output samples. A demodulator 2044 is used to demodulate the input signal. For example, demodulator 2044 processes the input samples and provides symbol estimates. The decoder 2043 is configured to decode the demodulated input signal. For example, the decoder 2043 de-interleaves, and/or decodes the demodulated input signal and outputs the decoded signal (data and/or signaling).

The processor 204 receives digitized data representative of voice, data or control information and processes the digitized data for transmission. The processor 204 can support one or more of a plurality of wireless communication protocols of a plurality of communication systems, such as a Long Term Evolution (LTE) communication system, a New Radio (NR), and a universal mobile communication system ( Universal Mobile Telecommunications System (UMTS), High Speed Packet Access (HSPA) and the like. Optionally, one or more memories may also be included in the processor 204.

The memory 203 is used to store program codes (sometimes referred to as programs, instructions, software, etc.) and/or data for supporting communication of the terminal device.

It should be noted that the memory 203 may include one or more storage units, for example, may be the storage unit inside the processor 204 or the application processor 202, or may be an external storage unit independent of the processor 204 or the application processor 202. Or it may be a component that includes a memory unit internal to processor 204 or application processor 202 and an external memory unit that is separate from processor 204 or application processor 202.

The terminal device may also include an application processor 202 for generating digitized data representative of voice, data or control information as described above. Processor 204 and application processor 202 may be integrated into one processor chip.

FIG. 3 shows a wireless communication device according to an embodiment of the present invention. The wireless communication device can be used as an access network device 101 or a device applied to the access network device 101. The following is an example in which the wireless communication device shown in FIG. 2 is an access network device. The access network device is capable of performing the method provided by the embodiment of the present invention. The access network device includes a transceiver 302, a controller or processor 301 (hereinafter, exemplified by processor 301) and a memory 303.

The transceiver 302 can be used to support the transmission and reception of information between the access network device 101 and the terminal devices 111-112. On the uplink, the uplink radio frequency signal from the terminal device is received via the antenna, coordinated by the transceiver 302, and the baseband signal is extracted and output to the processor 301 for processing to recover the service data and/or information sent by the terminal device. Order information. On the downlink, the baseband signal carrying the service data and/or signaling message to be transmitted to the terminal device is modulated by the processor 301 to generate an uplink radio frequency signal and transmitted to the access network device via the antenna. . The transceiver 302 can also be used to support the transmission and reception of information between the terminal devices 111-112. The transceiver 302 can include separate receiver and transmitter circuits, or can be integrated in the same circuit for transceiving functions.

Processor 301 is also sometimes referred to as a modem processor. Processor 301 can include a baseband processor (BBP) (not shown in FIG. 3) that processes the digitized received signal to extract information or data bits conveyed in the signal. As such, the BBP is typically implemented in one or more digital signal processors (DSPs) within the processor 301 or as separate integrated circuits (ICs) as needed or desired.

Memory 303 is used to store program code (sometimes referred to as programs, instructions, software, etc.) and/or data for supporting communication by the access network device.

It should be noted that the memory 303 may include one or more storage units, for example, may be a storage unit inside the processor 301, or may be an external storage unit independent of the processor 301, or may also include an internal processor 301. The storage unit and the components of the external storage unit independent of the processor 301.

The access network device 101 can also include a communication unit 304 for supporting the access network device 101 to communicate with other network entities. For example, it is used to support the access network device 101 to communicate with a network device or the like of the core network.

Optionally, the access network device 101 may further include a bus. The transceiver 302, the memory 303, and the communication unit 304 can be connected to the processor 301 through a bus. For example, the bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus may include an address bus, a data bus, a control bus, and the like.

The processor 204 and the processor 301 may be the same type of processor or different types of processors. For example, it can be implemented in a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), and a field programmable gate array ( Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, other integrated circuit, or any combination thereof. The processor 204 and the processor 301 can implement or perform various exemplary logical blocks, modules and circuits described in connection with the present disclosure. The processor 204 and the processor 301 may also be a combination of computing function devices, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, or a system-on-a-chip (SOC), etc. Wait.

Those skilled in the art can appreciate that the various illustrative logical blocks, modules, circuits, and algorithms described in connection with the aspects disclosed herein can be implemented as electronic hardware, stored in a memory, or in another computer-readable medium and An instruction executed by a processor or other processing device, or a combination of the two. By way of example, the devices described herein can be used in any circuit, hardware component, IC, or IC chip. The memory disclosed herein can be any type and size of memory and can be configured to store any type of information as desired. To clearly illustrate this interchangeability, various illustrative components, blocks, modules, circuits, and steps have been described. How such functionality is implemented depends on the specific application, design choices, and/or design constraints imposed on the overall system. A person skilled in the art can implement the described functionality in a different manner for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the invention.

For ease of understanding, the PHR is described below.

The PHR is a Media Access Control (MAC) Control Element (CE) composed of at least one Power Headroom (PH). In LTE, each PH corresponds to an activated serving cell (Activated Serving Cell). PH represents the difference between the maximum transmit power allowed by the terminal device on one serving cell and the estimated transmit power (Estimated Transmission Power) of the terminal device on the serving cell. The terminal device reports the PH to the access network device to notify the terminal device of the power headroom information, so that the access network device performs reasonable resource allocation and/or power control for the terminal device.

Specifically, in the LTE system, there are three PH formats (Type), which are:

Type1: indicates the difference between the maximum transmit power allowed by the terminal device on a serving cell and the physical uplink shared channel (PUSCH) power of the terminal device. For example, when calculating the PH of the serving cell c subframe i, only the power of the PUSCH is considered, where c denotes the number of the serving cell and i denotes the number of the subframe. It should be noted that the PUSCH is a physical channel, and the corresponding transport channel is an uplink shared channel (UL-SCH). Therefore, the Type 1 PH may also represent the difference between the maximum transmit power allowed by the terminal device on one serving cell and the power of the terminal device transmitting the UL-SCH on the serving cell. It should be noted that the power of the PUSCH transmitted by the terminal device is the estimated transmit power (the estimated transmit power) of the terminal device, and the estimated transmit power may be the same as the actual transmit power of the PUSCH, and may also be sent with the actual transmission. The power of the PUSCH is different.

Type 2: indicates the difference between the maximum transmit power allowed by the terminal device on a serving cell and the power of the terminal device to transmit the PUSCH and the Physical Uplink Control Channel (PUCCH) on the serving cell. For example, when calculating the PH of the serving cell c subframe i, consider the power of transmitting the PUSCH and the PUCCH. The Type 2 PH may also indicate the difference between the maximum transmit power allowed by the terminal device on one serving cell and the power of the terminal device transmitting the UL-SCH and PUCCH on the serving cell. It should be noted that the power of the terminal device to transmit the PUSCH and the PUCCH is the transmit power estimated by the terminal device for transmitting the PUSCH and the PUCCH, and the power of the terminal device for transmitting the SRS is the transmit power estimated by the terminal device for transmitting the SRS.

Type 3: indicates the difference between the maximum transmit power allowed by the terminal device on a serving cell and the power of the terminal device to transmit a Sounding Reference Signal (SRS) on the serving cell. For example, when calculating the PH of the serving cell c subframe i, consider the power of transmitting the SRS. In the LTE system, if and only if the serving cell of the terminal device is a secondary cell (Scell) and the serving cell is configured to transmit only a Sounding Reference Signal (SRS), the terminal device may The PH of the SRS of the serving cell is reported by the Type3 PH. When the terminal device can send both the PUSCH and the SRS on the primary cell (PCell) or the SCell, the terminal device can only send the Type1 PH. When the terminal device can transmit both the PUSCH and the PUCCH on the PCell or the SCell, and the SRS can be sent, the terminal device can only send the Type1 PH and the Type2 PH.

It should be noted that when there are multiple serving cells, the sum of the estimated transmit powers of the terminal devices on multiple serving cells may exceed the maximum transmit power of the terminal device, so the terminal device may also adjust the estimated transmit power. The transmission power is made to meet the requirements of the maximum transmission power of the terminal device.

In the LTE system, when the access network device communicates with the terminal device, the power control for transmitting the SRS and the power control for transmitting the PUSCH are mutually bound (or associated), and the existing PH technology solution can support the transmission. The SRS and the PUSCH transmit power control for binding. However, in the 5GNR system, when the access network device communicates with the terminal device, power control needs to be performed separately for transmitting the SRS and transmitting the PUSCH. That is, the power control for transmitting the SRS and the power control for transmitting the PUSCH are independent of each other. In this case, with the existing PH technology scheme, the access network device cannot mutually convert the power headroom of the SRS and the power headroom of the PUSCH to each other relatively accurately. Therefore, power control of the SRS and the PUSCH cannot be performed separately. Thereby, the accuracy of power control and resource allocation performance are affected.

In order to solve the above problems, the present invention provides a wireless communication method. In the method, the access network device configures at least one SRS on the serving cell for the terminal device. The terminal device determines power headroom information of the serving cell according to part or all of the at least one SRS and one or more physical channels, and sends the power headroom information to the access network device. The access network device obtains more accurate power headroom information of the terminal device in the serving cell, thereby improving power control accuracy and resource allocation performance.

It should be noted that, in the embodiments of the present invention, the serving cell may also be a primary cell (PCell), a secondary cell (SCell), and a primary secondary cell (PScell). Component Carrier (CC), Supplementary Uplink (SUL), or BandWidth Parts (BWP). Wait. In the embodiment of the present invention, they are collectively referred to as frequency domain resources. Correspondingly, the power headroom PH of a serving cell can also be replaced by the PH of a BWP, or replaced by the PH of a CC, or replaced by the PH of a SUL.

When the terminal device determines the PH on a serving cell, the maximum transmit power allowed on the serving cell is the maximum transmit power allowed on the serving cell determined by the terminal device. Specifically, the terminal device is determined according to at least one of a maximum transmit power capability of the terminal device, a maximum transmit power of the serving cell, and a power backoff notified by the access network device. For example, the maximum transmit power capability of the terminal is 23 decibels milliwatts (dBm), and the maximum transmit power of a serving cell notified by the access network device is 20 dBm, and the power backoff is 2 dB, and the maximum allowed by the terminal device on the serving cell. The transmit power is equal to 18 dBm. For convenience of description, in various embodiments of the present invention, the maximum transmit power determined by the terminal device on the serving cell is also referred to as the first maximum transmit power on the serving cell. Correspondingly, the maximum transmit power allowed on the BWP determined by the terminal device is also referred to as the first maximum transmit power on the BWP. The maximum transmit power allowed on the SUL determined by the terminal device is also referred to as the first maximum transmit power on the SUL, and the maximum transmit power allowed by the terminal device on one frequency domain resource is also referred to as being on the frequency domain resource. The first maximum transmission power and the like. Correspondingly, the maximum transmit power notified by the access network device is also referred to as the second maximum transmit power. For example, the maximum transmit power of the terminal device notified by the access network device in one serving cell is also referred to as the second maximum transmit power of the terminal device in the serving cell. The maximum transmit power of the terminal device notified by the access network device at one BWP is also referred to as the second maximum transmit power of the terminal device at the BWP. The maximum transmit power of the terminal device notified by the access network device in one frequency domain resource is also referred to as the second maximum transmit power of the terminal device in the frequency domain resource.

Correspondingly, in various embodiments of the present invention, the PH of one BWP represents the difference between the first maximum transmit power of the terminal device on one BWP and the estimated transmit power (Estimated Transmission Power) of the terminal device on the BWP. The PH of one CC represents the difference between the first maximum transmit power of the terminal device on one CC and the estimated transmit power (Estimated Transmission Power) of the terminal device on the CC. The PH of one SUL represents the difference between the first maximum transmit power of the terminal device on one SUL and the estimated transmit power (Estimated Transmission Power) of the terminal device on the SUL. The PH of a frequency domain resource indicates the difference between the first maximum transmit power of the terminal device on one frequency domain resource and the estimated transmit power (Estimated Transmission Power) of the terminal device on the frequency domain resource.

FIG. 4 is a schematic flowchart diagram of a wireless communication method according to an embodiment of the present invention.

The terminal device in each embodiment of the present invention may be any one of the terminal devices 111 to 112 in FIG.

Embodiments of the present invention include the following steps:

Step S101: The access network device sends the first configuration information to the terminal device. Correspondingly, the terminal device receives the first configuration information from the access network device.

The first configuration information is used to configure at least one Listening Reference Signal (SRS) of the frequency domain resource.

Alternatively, the at least one SRS may be replaced with at least one set of SRSs, wherein each set of SRSs includes at least one SRS. At this time, in the embodiment of the present invention, the operations of the at least one SRS, such as determining the first SRS, determining the power headroom information, reporting the power headroom information, and the like, are all in units of a set of SRSs.

In the embodiments of the present invention, the frequency domain resource may be: a serving cell (Serving Cell), a primary serving cell (Primary Cell, PCell), a secondary serving cell (Secondary Cell, SCell), and a primary secondary cell (Primary Secondary Cell, PScell). ) Component Carrier (CC), Supplementary Uplink (SUL), or BandWidth Parts (BWP). The frequency domain resource may be a frequency domain resource of the licensed spectrum or a frequency domain resource of the unlicensed spectrum. The invention is not limited. The terminal device can send the configured at least one SRS on the configured frequency domain resource. Further terminal devices may also transmit PUSCH (ie, transmit information on the PUSCH) and/or PUCCH (ie, transmit information on the PUCCH) on the configured frequency domain resources.

Specifically, the first configuration information includes at least one of the following:

Information 11: indication information for indicating a sending manner of the at least one SRS, where the sending manner includes: an aperiodic transmission mode, or a semi-static transmission mode, or a periodic transmission mode.

Specifically, if the SRS is sent in an aperiodic manner, the terminal device sends the SRS to the access network device only after receiving the command of the access network device. For example, the access network device notifies the UE to send an SRS once through a Physical Downlink Control Channel (PDCCH). The primary SRS may include multiple SRS resources and may occupy multiple OFDM symbols. If the sending mode of the SRS is a semi-static transmission mode, the terminal device periodically sends an access command to the access network device according to a pre-configured period after receiving an activation command of the access network device, for example, a MAC Control Element (MACCE). The SRS is sent, and when the terminal device receives the deactivation (or release) command of the access network device, for example, the MACCE, stops sending the SRS to the access network device. The SRS may be transmitted multiple times during activation and deactivation. If the sending mode of the SRS is a periodic sending mode, the terminal device periodically sends the SRS to the access network device according to the pre-configured period.

Optionally, when the sending mode is a periodic or semi-static sending mode, the first configuration information may further carry the periodic information. For example, the period length is 10 milliseconds, or 2 subframes, or 5 slots, or 5 OFDM symbols, and the like.

Information 12: indication information for indicating a function of the at least one SRS, wherein the function comprises: for codebook based transmission, and/or for non-codebook based transmission, and/or Switching on SRS, and/or for beam management.

Information 13: Time domain location information of the at least one SRS.

The time domain location information may represent an absolute time domain location, for example, indicating which radio frame or cells, or subframes, or orthogonal frequency division multiplexing (or orthogonal frequency division multiplexing) the resources of each SRS in the at least one SRS are located. Frequency division multiplexing, OFDM) symbols, and the like. The time domain location information may also represent relative time domain locations, such as radio frame offset, or subframe offset, or slot offset, or orthogonal frequency division multiplexing (OFDM). Symbol offset, etc. The terminal device can determine the absolute time domain location based on the relative time domain location.

Information 14: identification information of the at least one SRS;

The access network device may configure multiple SRSs on one frequency domain resource for the terminal device, that is, configure multiple sets of SRS resources, different SRSs may have different transmission modes, and different SRSs may have different functions. At this time, in order to distinguish different SRSs, the first configuration information carries identification information of at least one SRS. Different SRSs have different identification information. The identification information may be explicit identification information, for example, the identification information may be an identity or an index. Alternatively, the identifier information may be implicit identifier information. For example, the identifier information of one SRS is determined according to the location of the SRS in the at least one SRS in the first configuration information, and the identifier information of the first SRS is 0. The identification information of the two SRSs is 1 or the like. The invention is not limited. The identifier information of the SRS may also be a resource identifier occupied by the SRS, such as a resource ID. The identifier information of the SRS may also be the identifier of the resource group where the resource occupied by the SRS is located. The identifier information of the SRS may also be an identifier of a time domain resource occupied by the SRS, or a frequency domain resource identifier, or a code domain resource identifier, or an airspace resource identifier. When the at least one SRS is replaced with at least one group of SRSs, the identification information of the SRS may be identification information of the SRS group. No longer.

Optionally, when the access network device configures only one SRS for the terminal device in a frequency domain resource, the first configuration information may not carry the identifier information of the SRS. The terminal device and the access network device may represent the SRS according to a predefined identifier.

Information 15: Identification information of the frequency domain resource.

The access network device can configure multiple frequency domain resources for the terminal device. For example, in a scenario such as CA, LAA, DC, LTE, and NRDC, the access network device configures five frequency domain resources for the terminal device. At this time, in order to distinguish different frequency domain resources, the first configuration information carries the identification information of the frequency domain resource. Different frequency domain resources may have different identification information. The identifier information may be explicit identifier information. For example, when the frequency domain resource is a serving cell, the identifier information may be a cell identity (Cell Identity) or a cell index (Cell Index). When the frequency domain resource is a BWP, the identifier information is used. Can be BWP logo, or BWP index. Alternatively, the identifier information may be an implicit identifier information. For example, the identifier information of a frequency domain resource is determined according to a location of the frequency domain resource in multiple frequency domain resources included in the first configuration information, and the first frequency is determined. The identifier information of the domain resource is 0, and the identifier information of the second frequency domain resource is 1. For another example, the identification information of a frequency domain resource is determined according to an order in which the frequency of the frequency domain resource in the plurality of frequency domain resources included in the first configuration information is from low to high (or high to low). The invention is not limited.

Optionally, when the access network device configures only one frequency domain resource for the terminal device, the first configuration information may not carry the identifier information of the frequency domain resource.

It should be noted that some of the above information 11 to 15 may be fixed or pre-configured in the protocol, and another part is carried in the first configuration information. For example, if the information 11 is fixed to the periodic transmission mode in the protocol, or the information 11 is pre-configured to be a periodic transmission mode, the information 11 may not be carried in the first configuration information. Other information is similar to this and will not be described again.

In an implementation manner, the terminal device may receive the first configuration information or receive the first information by using a Radio Resource Control (RRC) layer message, a Media Access Control (MAC) layer message, or a physical layer message. One or more of the information 11 to the information 15 included in the configuration information. The RRC layer message may be a system broadcast message, or the RRC layer message may be a dedicated RRC message. The invention is not limited.

In an implementation manner, the information 11 to the information 15 in the first configuration information may be in the same message or in different messages. For example, information 11 to 13 are in RRC reconfiguration message 1, and information 14 to 15 are in RRC reconfiguration message 2. The invention is not limited.

In an implementation manner, the transceiver 302 in the access network device may be configured to send the first configuration information, or the processor 301 in the access network device controls the transceiver 302 to send the first configuration information.

In one implementation, the transceiver 204 in the terminal device can be configured to receive the first configuration information, or the processor 201 in the terminal device controls the transceiver 204 to receive the first configuration information.

Step S102: The access network device sends the second configuration information to the terminal device. Correspondingly, the terminal device receives the second configuration information from the access network device.

The second configuration information can be used to indicate any of the following information:

Information 21: The access network device separately transmits a physical channel and a power control command (TPC) of the SRS to the terminal device; correspondingly, the terminal device separately receives the power control command and the SRS of the physical channel sent by the access network device Power control commands.

In various embodiments of the invention, the physical channel comprises a PUSCH and/or a PUCCH. For example, the access network device separately sends a power control command of the PUSCH (or PUCCH) and a power control command of the SRS to the terminal device, and the terminal device adjusts the PUSCH (or PUCCH) according to the power control command of the received PUSCH (or PUCCH). Transmit power; adjust the transmit power of the SRS according to the power control command of the received SRS. Alternatively, the access network device separately sends a power control command of the PUSCH, a power control command of the PUCCH, and a power control command of the SRS to the terminal device. The power control command of the access network device to the terminal device PUSCH through one or more downlink control information, the power control command of the PUCCH, and the power control command of the SRS.

When the access network device configures multiple frequency domain resources for the terminal device, the information 21 indicates that the access network device sends the physical channel and the SRS power control command to the terminal device respectively on all the multiple frequency domain resources. .

The advantage of using the information 21 is that when the access network device configures multiple frequency domain resources for the terminal device, the signaling overhead of the second configuration information can be effectively saved.

Information 22: The access network device separately sends the SRS power control command on the physical channel and the frequency domain resource on the frequency domain resource to the terminal device; correspondingly, the terminal device separately receives the physical on the frequency domain resource sent by the access network device Power control commands for the channel and power control commands for the SRS. Compared to the information 21, the information 22 is only applied to specific frequency domain resources. For example, the access network device configures three frequency domain resources (represented as frequency domain resource 1, frequency domain resource 2, and frequency domain resource 3) for the terminal device, and the information 22 can be applied only to the frequency domain resource 1 and the frequency domain resource. 3. Compared with the information 21, the information 22 is more flexible, but the signaling overhead is relatively large.

Optionally, when the access network device configures a frequency domain resource for the terminal device, the information 21 and the information 22 are the same.

Information 23: The second maximum transmit power used by the terminal device to transmit the SRS is different from the second maximum transmit power used on the physical channel. The information 23 may also be a second maximum transmit power used by the terminal device to transmit the SRS and a second maximum transmit power for transmitting on the physical channel, wherein the second maximum transmit power for transmitting the SRS is used for the physical channel The second maximum transmit power is different. For example, the second maximum transmit power for transmitting the SRS is 20 dBm, and the second maximum transmit power for the PUSCH and or PUCCH is 23 dBm. The advantage of using the information 23 is that when the access network device configures multiple frequency domain resources for the terminal device, the signaling overhead of the second configuration information can be effectively saved, and the flexibility of the scheduling of the access network device is provided.

Information 24: The second maximum transmit power used by the terminal device to transmit the SRS on the frequency domain resource and the second maximum transmit power on the physical channel on the frequency domain resource are different. The information 24 may also be a second maximum transmit power used by the terminal device to transmit the SRS on the frequency domain resource and a second maximum transmit power on the physical channel on the frequency domain resource, wherein the resource is used in the frequency domain. The second maximum transmit power of the upper transmit SRS is different than the second maximum transmit power for the physical channel on the frequency domain resource. Compared to the information 23, the information 24 is only applied to specific frequency domain resources. For example, the access network device configures three frequency domain resources (represented as frequency domain resource 1, frequency domain resource 2, and frequency domain resource 3) for the terminal device, and the information 24 can be applied only to the frequency domain resource 1 and the frequency domain resource. 3. Compared with the information 23, the information 24 is more flexible, but the signaling overhead is relatively large.

In an implementation manner, the terminal device may carry the second configuration information by using a radio resource control (RRC) layer message, a media access control (MAC) layer message, or a physical layer message. The RRC layer message may be a system broadcast message, or the RRC layer message may be a dedicated RRC message. The invention is not limited.

In an implementation manner, the first configuration information and the second configuration information may be in the same message or in different messages, and the invention is not limited.

In an implementation manner, the transceiver 302 in the access network device may be configured to send the second configuration information, or the processor 301 in the access network device controls the transceiver 302 to send the second configuration information.

In one implementation, the transceiver 204 in the terminal device can be configured to receive the second configuration information, or the processor 201 in the terminal device controls the transceiver 204 to receive the second configuration information.

In one implementation, the second configuration information may be fixed in the protocol. At this time, step S102 can be replaced with the terminal device obtaining the second configuration information. That is, the access network device does not need to send the second configuration information to the terminal device, and the terminal device does not need to receive the second configuration information from the access network.

In an implementation manner, the processor 201 in the terminal device is configured to obtain the second configuration information.

Step S102 is optional.

Step S103: The terminal device determines the first SRS on the first time period of the frequency domain resource.

Optionally, the PH report is triggered before the terminal device determines the first SRS. The condition for triggering the PH report includes any one of the following conditions:

Condition 1, the PH reporting timer (prohibitPHR-Timer) is disabled, and the path loss value of at least one active frequency domain resource is greater than a specific value, such as dl-Pathloss Change dB.

Condition 2, periodic PH reporting timer (periodicPHR-Timer) times out

Condition 3, RRC configuration or reconfiguration of the PHR function

Condition 4, the configured uplink frequency domain resource is activated, where the uplink frequency domain resource may be SCell

Condition 5, adding a frequency domain resource, wherein the frequency domain resource may be PSCell

Condition 6, for any frequency domain resource, the value of the power backoff change exceeds a certain value, such as dl-PathlossChange dB, since the last PHR was sent under the condition that the prohibitPHR-Timer expired.

Condition 7, the SRS and physical channel power control modes change. For example, unified power control for SRS and physical channels becomes power control for SRS and physical channels, respectively, or power control for SRS and physical channels respectively becomes unified power control for SRS and physical channels.

Condition 8, the resources of the SRS are configured or reconfigured. For example, the previous terminal device is not configured with the SRS resource, and the SRS resource is configured through the first configuration information, or the SRS resource of the previous terminal device is changed.

After the PH is triggered, if the terminal device has a physical resource for transmitting uplink data in the first time period, the terminal device may determine the first SRS on the first time period of the frequency domain resource.

Before describing the first SRS on the first time period in which the terminal device determines the frequency domain resource, the first time period is described first. Generally, the length of the first time period may represent the shortest time to transmit one transport block (TransportBlock, TB) or a MAC Protocol Data Unit (PDU). The length of the first time period may be N milliseconds, or the length of the first time period may be equal to the length of N subframes, or equal to the length of N time slots (Slots), or equal to N mini time slots ( The length of the Mini-Slot is equal to the length of the N OFDM symbols, or equal to the length of the Transmission Time Interval (TTI). N is a positive integer. In different communication systems, the length of the first time period can be different. In the same communication system, it is also possible to have a plurality of different lengths of the first time period. For example, in the UMTS system, the length of the first time period may be 10 ms, or 2 ms. In the LTE system, the length of the first time period may be 1 ms, or 0.5 ms. The invention is not limited.

Taking the length of the first time period equal to the length of the time slot as an example, the first time period represents a specific time slot. Figure 5 shows a schematic diagram of transmitting SRS on time slot i, time slot i+x, time slot i+y and time slot i+z. Taking the LTE system as an example, when a normal Cyclic Prefix is used, one slot includes 14 OFDM symbols, and one small box in the figure represents one OFDM symbol, and the first OFDM symbol of the slot to the slot The last OFDM symbols are numbered OFDM0 to OFDM13, respectively. It is assumed that the first configuration information includes five SRSs, and the corresponding SRS identification information is 0 to 4, and the five SRSs are respectively represented as SRS0 to SRS4). On the time slot i, the terminal device determines that it is necessary to transmit SRS0 to SRS2 according to the first configuration information. On the time slot i+x, the terminal device determines that it is necessary to transmit SRS3 to SRS4 according to the first configuration information. On the time slot i+y, the terminal device determines not to transmit the SRS according to the first configuration information. On the time slot i+z, the terminal device determines that it is necessary to transmit SRS0 to SRS4 according to the first configuration information. The SRS1 and the SRS2 are transmitted on the same OFDM symbol. In this case, the resources of the SRS1 and the SRS2 in the frequency domain may be different, or the resources in the code domain may be different.

The first SRS includes one or more of at least one SRS in step S101. Specifically, the terminal device may determine the first SRS by using one or more combinations of the following implementation manners.

In a first mode, the terminal device determines, according to the information 11 included in the first configuration information, indication information indicating a manner of sending the at least one SRS, and determines the first SRS. For example, the terminal device obtains a pre-configured rule, and the rule may be that the aperiodic transmission mode has the highest priority, the semi-static transmission mode has the lower priority, and the periodic transmission mode has the lowest priority. When the sending manners of the multiple SRSs of the terminal device in the first time period are different, the terminal device may determine the first SRS by using a priority from high to low (or low to high).

One implementation manner of the mode 1 may be that the terminal device determines the first SRS from one or more SRSs actually to be sent on the first time period. As shown in FIG. 5, it is assumed that the SRS0 transmission mode is an aperiodic transmission mode, the SRS1 transmission mode is a semi-static transmission mode, the SRS2 transmission mode is a periodic transmission mode, and the SRS3 transmission mode is a semi-static transmission mode. In the mode, the SRS4 transmission mode is a periodic transmission mode. On the time slot i, the terminal device determines that the first SRS on the time slot i is SRS0 because the priority of the aperiodic transmission mode is higher than the priority of the semi-static transmission mode and the periodic transmission mode. On the time slot i+x, since the priority of the semi-static transmission mode is higher than the priority of the periodic transmission mode, the terminal device determines that the first SRS on the time slot i+x is SRS3.

Another specific implementation manner of the mode 1 may be that the terminal device determines the first SRS in the first time period according to the sending manner of all the at least one SRS. At this time, the first SRS determined by the terminal device includes the SRS that is not sent on the first time period. For example, the SRS0 transmission mode is a semi-static transmission mode, the SRS2 transmission mode is a periodic transmission mode, and the SRS3 transmission mode is a half. In the static transmission mode, the SRS4 transmission mode is a periodic transmission mode. On the slot i+x, although the terminal device only transmits SRS3 and SRS4, according to the above pre-configured rules, the terminal device still determines that the first SRS on the slot i+x is SRS0.

It can be understood that the priority order of the various sending modes in the foregoing pre-configured rules may also be the priority of the periodic sending mode > the priority of the semi-static sending mode > the priority of the periodic sending mode, where the symbol “>” means higher than. The priority order of the various sending modes in the pre-configured rules is not specifically limited in the embodiments of the present invention.

Mode 2: The terminal device determines, according to the information 12 included in the first configuration information, indication information indicating a function of the at least one SRS, to determine the first SRS. For example, the terminal device obtains a pre-configured rule, which may be a priority for codebook based transmission > priority for non-codebook based transmission > priority for SRS handover > for The priority of beam management, where the symbol ">" indicates higher. When the functions of the plurality of SRSs of the terminal device in the first time period are different, the terminal device may determine the first SRS by using a priority from high to low (or low to high). The function of the SRS may in turn be a function for uplink measurement or a function for downlink measurement, for example, for codebook-based transmission and for non-codebook-based transmission, which are functions for downlink measurement, The SRS switching is an uplink measurement function or the like. At this time, the terminal device may determine the first SRS according to a pre-configured rule, such as a priority of a function for uplink measurement > (or less than) a priority of a function for downlink measurement.

One implementation manner of the mode 2 may be that the terminal device determines the first SRS from one or more SRSs actually to be sent on the first time period. Still taking FIG. 5 as an example, it is assumed that the function of SRS0 is used for codebook-based transmission, and the function of SRS1 is for non-codebook-based transmission, and the function of SRS2 is for SRS handover, and the function of SRS3 is used. For SRS handover, the function of SRS4 is for beam management. On slot i, since the priority for codebook based transmission is higher than for non-codebook based transmission and for SRS handover, the terminal device determines the first SRS on slot i For SRS0. On slot i+x, since the priority for SRS handover is higher than the priority for beam management, the terminal device determines that the first SRS on slot i+x is SRS3.

Another specific implementation manner of the mode 2 may be that the terminal device determines the first SRS in the first time period according to the function of all the at least one SRS. At this time, the first SRS determined by the terminal device includes the SRS that is not sent on the first time period. For example, still taking FIG. 5 as an example, it is assumed that the function of SRS0 is used for codebook-based transmission, and the function of SRS1 is for non-codebook-based transmission, and the function of SRS2 is for SRS handover, SRS3 function. For SRS handover, the function of SRS4 is for beam management. On the slot i+x, although the terminal device only transmits SRS3 and SRS4, according to the above pre-configured rules, the terminal device still determines that the first SRS on the slot i+x is SRS0.

It can be understood that the priority order of various transmission modes in the above pre-configured rules can also be used for priority based on non-codebook transmission > priority for codebook based transmission > for SRS handover Priority > Priority for beam management, where the symbol ">" indicates higher. The embodiments of the present invention do not specifically limit the priority order of the various functions in the pre-configured rules.

Manner 3: The terminal device determines the first SRS according to the time domain location information of the at least one SRS included in the first configuration information. For example, the terminal device obtains a pre-configured rule, and the rule may be that the earlier the time domain location of the at least one SRS in the first time period, the higher the priority, the later the time domain location, and the lower the priority. When the time domain location of the multiple SRSs of the terminal device in the first time period is different, the terminal device may determine the first SRS by using a priority from high to low (or low to high). The time domain location indicates that the OFDM symbol corresponding to the time domain location has a smaller number in the first time period, and vice versa, the time domain location is later, the OFDM symbol corresponding to the time domain location is within the first time period. The number is larger.

An implementation manner of the mode 3 may be that the terminal device determines the first SRS from one or more SRSs that are actually to be sent on the first time period. Still taking FIG. 5 as an example, the time domain position of SRS0 is symbol 8, the time domain position of SRS1 is symbol 11, the time domain position of SRS2 is symbol 11, the time domain position of SRS3 is symbol 10, and the time domain position of SRS4 is symbol 13. In slot i, since the time domain position of SRS0 is earlier than the time domain positions of SRS1 and SRS2, the priority of SRS0 is higher than the priorities of SRS1 and SRS2, and the terminal device determines that the first SRS on slot i is SRS0. . On the slot i+x, since the time domain position of the SRS3 is earlier than the time domain position of the SRS4, the terminal device determines that the first SRS on the slot i+x is SRS3.

Another specific implementation manner of the mode 3 may be that the terminal device determines the first SRS in the first time period according to the time domain location information of all the at least one SRS. At this time, the first SRS determined by the terminal device includes the SRS that is not sent on the first time period. For example, still taking FIG. 5 as an example, the time domain position of SRS0 is symbol 8, the time domain position of SRS1 is symbol 11, the time domain position of SRS2 is symbol 11, the time domain position of SRS3 is symbol 10, and the time domain position of SRS4. Is the symbol 13. On the slot i+x, although the terminal device only transmits SRS3 and SRS4, according to the above pre-configured rules, the terminal device still determines that the first SRS on the slot i+x is SRS0.

It can be understood that the foregoing pre-configured rule may also be that the earlier the time domain location of the at least one SRS in the first time period, the lower the priority, the later the time domain location, and the higher the priority. The embodiments of the present invention are not specifically limited.

Mode 4: The terminal device determines the first SRS according to the identifier information of the at least one SRS included in the first configuration information. For example, the terminal device obtains a pre-configured rule, and the rule may be that the identifier information of the at least one SRS is smaller, the higher the priority, the larger the identifier information, and the lower the priority. The terminal device may determine the first SRS of the plurality of SRSs on the first time period by using a priority from high to low (or low to high).

An implementation manner of the method 4 may be that the terminal device determines the first SRS from one or more SRSs that are actually to be sent on the first time period. As shown in FIG. 5, it is assumed that the identification information of SRS0 is 0 (for example, the identifier or index is equal to 0), the identification information of SRS1 is 1, the identification information of SRS2 is 2, the identification information of SRS3 is 3, and the identification information of SRS4 is 4. . On the time slot i, since the identification information of the SRS0 is smaller than the identification information of the SRS1 and the SRS2, the priority of the SRS0 is higher than the priority of the SRS1 and the SRS2, and the terminal device determines that the first SRS on the time slot i is SRS0. On the slot i+x, since the identification information for the SRS3 is smaller than the identification information of the SRS4, the terminal device determines that the first SRS on the slot i+x is SRS3.

Another specific implementation manner of the method 4 may be that the terminal device determines the first SRS in the first time period according to the identifier information of all the at least one SRS. At this time, the first SRS determined by the terminal device includes the SRS that is not sent on the first time period. For example, still take FIG. 5 as an example, and assume that the identification information of SRS0 is 0 (for example, the identifier or index is equal to 0), the identification information of SRS1 is 1, the identification information of SRS2 is 2, the identification information of SRS3 is 3, and the identification information of SRS4 is Is 4. On the slot i+x, although the terminal device only transmits SRS3 and SRS4, according to the above pre-configured rules, the terminal device still determines that the first SRS on the slot i+x is SRS0.

It can be understood that the foregoing pre-configured rule may also be that the smaller the identifier information of the SRS is, the lower the priority is, the larger the identifier information is, and the higher the priority is. The embodiments of the present invention are not specifically limited.

When the identification information of the at least one SRS has the same priority or does not specify a priority, the first SRS may be all the at least one SRS having the same priority or having no specified priority.

Each of the pre-configured rules in modes 1 to 4 may be fixed in the protocol or transmitted to the terminal device through the access network device. When the pre-configured rule is sent to the terminal device by using the access network device, in an implementation manner, the terminal device passes the Radio Resource Control (RRC) layer message, and the media access control (MAC) Layer messages, or physical layer messages, can receive pre-configured rules. The RRC layer message may be a system broadcast message, or the RRC layer message may be a dedicated RRC message. The invention is not limited.

In a mode 5, the terminal device determines that the first SRS includes all the at least one SRS in the first configuration information. For example, still taking FIG. 5 as an example, in the slot i, the slot i+x, the slot i+y, and the slot i+z, the first SRS includes SRS0 to SRS4.

Mode 6, the terminal device determines that the first SRS on the first time period includes one or more SRSs to be actually sent in the first time period. For example, still taking FIG. 5 as an example, in the slot i, the first SRS includes SRS0 to SRS3, and in the slot i+x, the first SRS includes SRS3 to SRS4, and in the slot i+z, the first SRS includes SRS0 to SRS4.

In the seventh mode, the terminal device autonomously determines the first SRS on the first time period.

It should be noted that two or more of the above modes 1 to 4 may be used in combination. For example, the terminal device first determines, according to the mode 1, the M SRSs with the highest priority from the at least one SRS included in the first configuration information, and then determines the N SRSs with the highest priority from the M SRSs according to the mode 2. The first SRS includes the N SRSs. Where M, N are positive integers, and M ≥ N ≥ 1. For example, the terminal device first determines, according to the mode 2, the M SRSs with the highest priority from the at least one SRS included in the first configuration information, and then determines the N with the highest priority from the M SRSs according to the mode 3. SRS, and then according to mode 4, determining K SRSs with the highest priority from the N SRSs, the first SRS including the K SRSs. Where M, N, K are positive integers, and M ≥ N ≥ K ≥ 1. The invention is not limited to specific combinations. The present invention does not limit the application priority of the modes 1 to 4 in the specific combination. When the first SRS is determined by using two or more combinations of the mode 1 to the mode 4, if the application priority of the mode 1 to mode 4 is applied, one of the i-th application modes 1 to 4 is determined, and the determined SRS is determined. The number of the SRS is greater than 0. However, after the first one of the i+1th application mode 1 to mode 4, the determined number of SRSs is equal to 0, the terminal device determines that the SRS determined by the i th is the first SRS, and i is positive. Integer. For example, suppose that the priority of the mode 1 to the mode 4 is successively decremented, that is, the mode 1 has the highest priority, and the mode 4 has the lowest priority. If the mode 2 is applied (i=2), the determined number of SRSs is 2, but After the application mode 3 (i=3), the determined number of SRSs is 0, and the terminal device determines that the first SRS is the two SRSs after the application mode 2.

When the at least one SRS is replaced with at least one group of SRSs, the first SRS includes a first SRS group. The determination method is similar to the determination of the first SRS and will not be described again.

In one implementation, the processor 201 in the terminal device can be used to determine the first SRS.

Step S104: The terminal device determines power headroom information on the first time period of the frequency domain resource.

When the frequency domain resource is configured to transmit a physical channel (such as PUSCH and/or PUCCH) and transmit at least one SRS (ie, on the frequency domain resource, the terminal device may send the SRS and the physical channel at the first time) Transmitting information), the terminal device may determine information of a combination of one or more of the first power headroom and the fifth power headroom information in the first plurality of first time periods.

The first type of power headroom information, the terminal device determines one or more first power headroom information. The first power headroom information is the first maximum transmit power of the terminal equipment in the frequency domain resource (indicated as P _cmax,c ,c is an identifier of the frequency domain resource) and the power of the second SRS is sent by the terminal device And the second SRS includes one of the at least one SRS included in the first SRS. For example, taking FIG. 5 as an example, it is assumed that, according to the manner of determining the first SRS, determining that the first SRS on the time slot i is SRS0 and SRS1, the terminal device determines two first power headroom information, which are respectively represented as PH1. PH2. Where PH1 = P cmax _{, c} - the power to transmit SRS0, PH2 = P _{cmax, c} - the power to transmit SRS1. At this time, on the slot i, SRS0 and SRS1 are actually transmitted. Therefore, the power of transmitting SRS0 may be the power of actually transmitting SRS0, or the estimated power of transmitting SRS0, and the power of transmitting SRS1 may be the power of actually transmitting SRS1, or the estimated power of transmitting SRS1. For another example, if it is determined that the first SRS on the time slot i+x is SRS0 and SRS3 according to the manner of determining the first SRS, the terminal device determines two first power headroom information, which are respectively denoted as PH1, PH2. Where PH1 = P cmax _{, c} - the power to transmit SRS0, PH1 = P cmax _{, c} - the power to transmit SRS3. At this time, on the slot i+x, SRS0 will not be actually transmitted, and SRS3 will be actually transmitted. Therefore, the power of the SRS0 is the power determined according to the reference format. The power of the SRS3 may be the power of actually transmitting the SRS3, or the estimated power of the SRS3. It should be noted that, the first maximum transmit power of the terminal device in the frequency domain resource is at least the terminal device according to the maximum transmit power capability, the maximum transmit power of the frequency domain resource notified by the access network device, and the power backoff. A certain one. For example, the terminal power capability is 23 decibels milliwatts (dBm), and the maximum transmit power of the frequency domain resource notified by the access network device is 20 dBm, and the power backoff is 2 dBm, and the terminal device is the first in the frequency domain resource. The maximum transmit power is equal to 18 dBm. The following various first maximum transmit powers are similar and will not be described again.

When determining the first type of power headroom information, the first maximum transmit power of the terminal device in the frequency domain resource may be the first maximum transmit power of the terminal device. This is the easiest way. The first maximum transmit power of the terminal device in the frequency domain resource may also be the first maximum transmit power of the transmit SRS of the terminal device in the frequency domain resource. The PH calculated in this way is more accurate. The first maximum transmit power of the terminal device in the frequency domain resource may also be the first maximum transmit power of each SRS in the at least one SRS of the terminal device in the frequency domain resource, that is, the first Each SRS in the at least one SRS included in the configuration information is associated with one maximum transmit power, and the first maximum transmit power associated with different SRSs may be the same or different. For example, when PH1 is calculated, the first maximum transmit power associated with transmitting SRS0 is used, and when PH2 is calculated, the first maximum transmit power associated with transmitting SRS1 is used. This way the calculated pH is more accurate.

The second power headroom information, the terminal device determines one or more second power headroom information. The second power headroom information is a difference between a first maximum transmit power of the terminal device in the frequency domain resource and a power of the terminal device on a first physical channel. When the physical channel includes multiple channels, the first physical channel is one of the multiple channels, and when the physical channel includes one channel, the first physical channel is the channel. For example, if the physical channel includes the PUSCH on the frequency domain resource, the terminal device determines one power headroom information. For another example, if the physical channel includes the PUSCH and the PUCCH on the frequency domain resource, the terminal device determines two power headroom information.

When determining the second power headroom information, the first maximum transmit power of the terminal device in the frequency domain resource may be the maximum transmit power of the terminal device. This is the easiest way. The first maximum transmit power of the terminal device in the frequency domain resource may also be the first maximum transmit power of the transmit physical channel of the terminal device in the frequency domain resource. The PH calculated in this way is more accurate. The first maximum transmit power of the terminal device in the frequency domain resource may also be the first maximum transmit power of each of the at least one channel included in the transmit physical channel of the frequency domain resource of the terminal device, different The first maximum transmit power associated with the channel may be the same or different. For example, when calculating the PH of the PUSCH, the maximum transmit power associated with transmitting the PUSCH is used, and when calculating the PH of the PUCCH, the first maximum transmit power associated with transmitting the PUCCH is used. This way the calculated pH is more accurate.

The third power headroom information, the terminal device determines the third power headroom information. The third power headroom information is a difference between a first maximum transmit power of the terminal device in the frequency domain resource and a power of the first SRS sent by the terminal device. For example, with reference to FIG. 5, it is assumed that, according to the manner of determining the first SRS, determining that the first SRS on the time slot i is SRS0 and SRS1, the terminal device determines that the third power headroom information may be that the terminal device is in the The first maximum transmit power of the frequency domain resource - (the power of transmitting SRS0 + the power of transmitting SRS1). At this time, on the slot i, SRS0 and SRS1 are actually transmitted. Therefore, the power of transmitting SRS0 may be the power of actually transmitting SRS0, or the estimated power of transmitting SRS0, and the power of transmitting SRS1 may be the power of actually transmitting SRS1, or the estimated power of transmitting SRS1. For example, if it is determined that the first SRS on the time slot i+x is SRS0 and SRS3 according to the manner of determining the first SRS, the terminal device determines that the third power headroom information may be the terminal device in the frequency domain resource. First maximum transmit power - (power of transmitting SRS0 + power of transmitting SRS3). At this time, on the slot i+x, SRS0 will not be actually transmitted, and SRS3 will be actually transmitted. Therefore, the power of transmitting SRS0 is the power determined according to the reference format (Reference Format), and the power of transmitting SRS3 may be the power of actually transmitting SRS3, or the estimated power of transmitting SRS3.

When determining the third power headroom information, the first maximum transmit power of the terminal device in the frequency domain resource may be the first maximum transmit power of the terminal device. This is the easiest way. The first maximum transmit power of the terminal device in the frequency domain resource may also be the first maximum transmit power of the transmit SRS of the terminal device in the frequency domain resource. The PH calculated in this way is more accurate.

The fourth power headroom information, the terminal device determines the fourth power headroom information. The fourth power headroom information is a difference between a first maximum transmit power of the terminal device in the frequency domain resource and a power of the terminal device on the physical channel. For example, if the physical channel includes the PUSCH on the frequency domain resource, that is, the terminal device cannot transmit the PUCCH and the PUSCH simultaneously on the frequency domain resource, the terminal device determines that the fourth power headroom information is the frequency domain resource. First Maximum Transmit Power - The power of the terminal equipment on the PUSCH. If the PUSCH is actually transmitted in the first time period, the power in the PUSCH may be the power of actually transmitting the PUSCH or the estimated power of the transmitted PUSCH. If the PUSCH is not actually transmitted during the first time period, the power on the PUSCH is the power determined according to the Reference Format. For example, if the physical channel includes the PUSCH and the PUCCH on the frequency domain resource, that is, the terminal device can simultaneously transmit the PUCCH and the PUSCH on the frequency domain resource, the terminal device determines that the fourth power headroom information is the frequency. The first maximum transmit power of the domain resource - (power of the terminal device on the PUSCH + power of the terminal device on the PUCCH). If the PUSCH and the PUCCH are actually transmitted in the first time period, the power in the PUSCH and the PUCCH may be the power of actually transmitting the PUSCH and the PUCCH, or the estimated power of the transmitted PUSCH and the PUCCH. If the PUSCH or PUCCH is not actually transmitted during the first time period, the power on the PUSCH or PUCCH is the power determined according to the Reference Format. If the PUSCH and the PUCCH are not actually transmitted during the first time period, the power on the PUSCH and the PUCCH is the power determined according to the Reference Format.

In determining the fourth power headroom information, the first maximum transmit power of the terminal device in the frequency domain resource may be the first maximum transmit power of the terminal device. This is the easiest way. The first maximum transmit power of the terminal device in the frequency domain resource may also be the first maximum transmit power of the transmit physical channel of the terminal device in the frequency domain resource. The PH calculated in this way is more accurate.

The fifth power headroom information, the terminal device determines the fifth power headroom information. The fifth power headroom information is a difference between the first maximum transmit power and the first transmit power of the terminal device in the frequency domain resource, where the first transmit power is sent by the terminal device to the first SRS The sum of the power and the power on the physical channel. The specific calculation method is similar to the previous method, and will not be described here.

When determining the fifth power headroom information, the first maximum transmit power of the terminal device in the frequency domain resource may be the first maximum transmit power of the terminal device. This is the easiest way.

Among the above various power headroom information, the first power headroom information and the second power headroom information are the most detailed, but the signaling overhead is the largest when reporting the power headroom information. The third power headroom information and the fourth power headroom information are more detailed, and the signaling overhead is small. The fifth power headroom information signaling overhead is minimal.

One of the possible combinations of the various power headroom information described above is a combination of the first power headroom information and the second power headroom information. This combination method can report the most detailed power headroom information. But the amount of information is relatively large. Another possible combination is a combination of a third power headroom information and a fourth power headroom information. The combination mode can report more detailed power headroom information. But the amount of information is relatively small.

When the frequency domain resource is configured to be unable to transmit a physical channel (such as PUSCH and/or PUCCH), and only at least one SRS can be sent, the terminal device can determine the first type of power headroom information, and one of the third power headroom information. One or more power headroom information.

The terminal device can determine which power headroom information, or which power headroom information, according to pre-configured rules. For example, the pre-configured rule may be determining the first type of power headroom information, or determining the first type of power headroom information and the second type of power headroom information, or determining the third type of power headroom information and the fourth type of power. The remaining amount information, or the fifth power headroom information is determined, or the first power headroom information and the third power headroom information are determined. For example, the pre-configured rule may be to determine the type of power headroom information according to whether the second configuration information is received. When the terminal device receives the second configuration information, the terminal device determines the first power headroom information and the second power headroom information, or determines the third power headroom information and the fourth power headroom information. When the terminal device does not receive the second configuration information, the terminal device determines the fifth power headroom information.

The pre-configured rules can be fixed in the protocol or sent to the terminal device through the access network device. When the pre-configured rule is sent to the terminal device by using the access network device, in an implementation manner, the terminal device passes the Radio Resource Control (RRC) layer message, and the media access control (MAC) Layer messages, or physical layer messages, can receive pre-configured rules. The RRC layer message may be a system broadcast message, or the RRC layer message may be a dedicated RRC message. The invention is not limited.

In an implementation manner, the MAC layer entity of the terminal device or the terminal device may obtain at least one of the first power headroom information and the fifth power headroom information from the physical layer. The MAC layer entity of the terminal device or the terminal device may also obtain the first maximum transmit power of the frequency domain resource from the physical layer. The MAC layer entity of the terminal device or the terminal device may also obtain, from the physical layer, a first maximum transmit power of the frequency domain resource for transmitting the SRS and/or a first maximum transmit power for transmitting the physical channel. When the physical channel or the SRS is not actually transmitted in the first time period, the MAC layer entity of the terminal device or the terminal device may also obtain a reference format of the physical channel or the SRS from the physical layer.

In one implementation, the processor 201 in the terminal device can be used to determine power headroom information.

Step S105: The terminal device sends power headroom information to the access network device, and correspondingly, the access network device receives the power headroom information sent by the terminal device.

The power headroom information includes one or more first power headroom information determined in step S104, one or more second power headroom information, third power headroom information, fourth power headroom information, and fifth power. One or more pieces of information in the balance information.

Further, the power headroom information may further include a first maximum transmit power of the terminal device in the frequency domain resource. The first maximum transmit power of the terminal device in the frequency domain resource may be the first maximum transmit power of the terminal device. The first maximum transmit power of the terminal device in the frequency domain resource may also be the first maximum transmit power of the transmit SRS of the terminal device in the frequency domain resource. The first maximum transmit power of the terminal device in the frequency domain resource may also be the first maximum transmit power of each SRS in the at least one SRS of the terminal device in the frequency domain resource, that is, the first Each SRS in the at least one SRS included in the configuration information is associated with a first maximum transmit power, and the first maximum transmit power associated with different SRSs may be the same or different. For example, when calculating PH1, the maximum transmit power associated with transmitting SRS0 is used, and when PH2 is calculated, the first maximum transmit power associated with transmitting SRS1 is used. The first maximum transmit power of the terminal device in the frequency domain resource may also be the first maximum transmit power of the transmit physical channel of the terminal device in the frequency domain resource.

The content that can be included in the power headroom information sent by the terminal device to the access network device is described below. It should be noted that, in the following various contents, the information P included is used to indicate whether the power back-off is performed when the terminal device determines the PH, and V is used to indicate whether the PH value is based on actual transmission (Real transmission) or based on a reference format ( Reference Format), R represents a reserved bit. A dashed box indicates that the content is optional. The information P, V and PH may appear in pairs, as shown in Figures 6 to 11, or only PH, without P and / or V. In addition, the PHs in the content 1 to the content 6 can occupy 6 bits. As shown in FIG. 6 to FIG. 11 , other numbers of bits can be occupied, for example, 7 bits are occupied. The present invention only describes the content included in the power headroom information, and does not limit the number of bits occupied by the PH.

Content 1, including the following information:

The one or more first power headroom information determined in step S104, wherein the first power headroom information may be Type3 or a new type, which is not limited in the present invention. The one or more first power headroom information may be arranged in the order of small to large (or large to small) identification information of the at least one SRS included in the first SRS. Figure 6 shows a possible example of Content 1. As shown in FIG. 6, PH (SRS0) to PH (SRSn) indicate first power headroom information corresponding to n SRSs included in the first SRS. Optionally, the content 1 further includes a first maximum transmit power of the terminal device on the frequency domain resource. Further, the content 1 may be replaced by a PH with a first maximum transmit power associated with each PH. For example, the content 1 may include {PH(SRS0), Pcmax SRS0}, {PH(SRS1), Pcmax in order. SRS1} and so on. The present invention does not limit the order of one or more first power headroom information.

Content 2, including the following information:

The third power headroom information determined in step S104, wherein the third power headroom information may be Type 3 or a new type, which is not limited in the present invention. Figure 7 gives a possible example of Content 2. As shown in FIG. 7, PH (SRS) represents the third power headroom information of the first SRS. Optionally, the content 2 further includes a first maximum transmit power of the terminal device on the frequency domain resource.

Content 3, including the following information:

A second power headroom information determined in step S104, wherein the second power headroom information may be Type1, that is, power headroom information when the physical channel is a PUSCH channel. The second power headroom information may be power headroom information of the PUCCH, that is, power headroom information when the physical channel is a PUCCH channel. Figure 8 gives a possible example of Content 3. As shown in FIG. 8, PH (Type 1) represents the second power headroom information of the PUSCH. Optionally, the content 3 further includes a first maximum transmit power of the terminal device on the frequency domain resource. Content 4, including the following information:

A second power headroom information determined in step S104, wherein the second power headroom information is Type2, that is, power headroom information when the physical channel is a PUSCH and a PUCCH channel. The second power headroom information may be power headroom information of the PUCCH, that is, power headroom information when the physical channel is a PUCCH channel. Figure 9 gives a possible example of Content 4. As shown in FIG. 9, PH (Type 2) represents second power headroom information of PUSCH and PUCCH. Optionally, the content 4 further includes a first maximum transmit power of the terminal device on the frequency domain resource. Content 5, including the following information:

The fifth power headroom information determined in step S104. Figure 10 gives a possible example of Content 5. As shown in FIG. 10, PH (SRS+PUSCH) represents the fifth power headroom information of the first SRS and the physical channel. The physical channel is a PUSCH. Optionally, the content 5 further includes a first maximum transmit power of the terminal device on the frequency domain resource.

Content 6, including the following information:

The fifth power headroom information determined in step S104. Figure 11 gives a possible example of content 6. As shown in FIG. 11, the PH (SRS+PUSCH+PUCCH) represents the fifth power headroom information of the first SRS and the physical channel, where the physical channel is the PUSCH and the PUSCH. Optionally, the content 6 further includes a first maximum transmit power of the terminal device on the frequency domain resource. The power headroom information determined by the terminal device may include one of Contents 1 to 6 above. Alternatively, the power headroom information determined by the terminal device may include a combination of a plurality of the above contents 1 to 6. The combination of multiples is described below. It should be noted that the present invention does not limit the order in which the various contents included in the following combinations are present in the power headroom information.

One possible combination 1 is content 2+ content 3. At this time, the power headroom information reflects the power headroom information when the SRS and the PUSCH are simultaneously transmitted on the frequency domain resources. Optionally, in the combination mode, if the maximum transmit power in the content 2 and the content 3 is the same, the combination may include only one maximum transmit power, and the one maximum transmit power is located at the end of the combination, which may save signaling. Overhead.

Another possible combination 2 is content 3 + content 5. At this time, the power headroom information reflects the power headroom information when the SRS and the PUSCH are simultaneously transmitted on the frequency domain resources. Optionally, in the combination mode, if the maximum transmit power in the content 3 and the content 5 is the same, the combination may include only one maximum transmit power, and the one maximum transmit power is located at the end of the combination, which may save signaling. Overhead.

Another possible combination 3 is content 2+ content 3 + content 5. At this time, the power headroom information reflects the power headroom information when the SRS and the PUSCH are simultaneously transmitted on the frequency domain resources. At this time, the power headroom information reflects the power headroom information when the SRS and the PUSCH are simultaneously transmitted on the frequency domain resources. Compared with the combination mode 1, the power headroom information is more accurate, but the signaling overhead is also larger. Optionally, in the combination mode, if the maximum transmit power in the content 2 and the content 3 is the same, the combination may include only one maximum transmit power, and the one maximum transmit power is located at the end of the combination, which may save signaling. Overhead.

Another possible combination 4 is content 4 + content 6. At this time, the power headroom information reflects power headroom information when the SRS and the PUSCH and the PUCCH are simultaneously transmitted on the frequency domain resources. Optionally, in the combination mode, if the maximum transmit power in the content 4 and the content 6 are the same, the combination may include only one maximum transmit power, and the one maximum transmit power is located at the end of the combination, which may save signaling. Overhead.

Another possible combination 5 is content 3 + content 4 + content 6. At this time, the power headroom information reflects power headroom information when the SRS and the PUSCH and the PUCCH are simultaneously transmitted on the frequency domain resources. Optionally, in the combination mode, if the content 3, the maximum transmission power in the content 4 and the content 6 are the same, the combination may include only one maximum transmission power, and the one maximum transmission power is located at the end of the combination, Save signaling overhead. Compared with the combination mode 4, the power headroom information is more accurate, but the signaling overhead is also larger.

Another possible combination 6 is content 2+ content 3 + content 4 + content 6. At this time, the power headroom information reflects power headroom information when the SRS and the PUSCH and the PUCCH are simultaneously transmitted on the frequency domain resources. Optionally, in the combination mode, if the maximum transmission power in the content 2, the content 3, the content 4, and the content 6 is the same, the combination may include only one maximum transmission power, and the one maximum transmission power is located in the combination. Finally, signaling overhead can be saved. Compared with the combination mode 4, the power headroom information is more accurate, but the signaling overhead is also larger.

Another possible combination 7 is content 1 + content 2. At this time, the power headroom information reflects the power headroom information when the SRS is simultaneously transmitted on the frequency domain resource. If the maximum transmit power in content 1 and content 2 is the same, the combination may include only one maximum transmit power, and the one maximum transmit power is at the end of the combination, which may save signaling overhead.

The power headroom information in step S105 may be information obtained by quantizing the calculated value of the power headroom. The specific quantization means may be a uniform step size for the power headroom or a non-uniform step in a certain value interval. Long way to quantify.

It should be noted that the above-mentioned possible combinations are merely exemplary descriptions, and any combination that can achieve the object of the present invention is within the protection scope of the embodiments of the present invention.

Optionally, the terminal device may report the power headroom information including one of the content 1 to the content 6 according to the pre-configured rule, or report the power headroom information including the combination of the multiple content. For example, when the terminal device obtains the second configuration information, the second terminal device reports power headroom information including content 1 and/or content 2 and/or possible combinations including content 1 and/or content 2. For another example, when the terminal device does not obtain the second configuration information, the power headroom information reported by the second terminal device does not include the possible combination manner of the content 1 and/or the content 2. For example, the access network device sends the third indication information to the terminal device, which is used to indicate which combination of the content or the content is reported by the terminal device.

Optionally, the power headroom information further includes first indication information, where the first indication information is used to indicate identifier information of one SRS in the at least one SRS included in the first SRS, where the first indication information is The first power headroom information is associated; when the first SRS includes only a part of the at least one SRS configured in the first configuration information, the terminal device reports the identifier information of the SRS corresponding to the first power headroom information. At this time, the understanding of the first SRS by the access network device is consistent with the terminal device, which is advantageous for better resource allocation and/or power control.

Optionally, if the terminal device is configured with multiple frequency domain resources, the terminal device determines power headroom information on each frequency domain resource. Further, the power headroom information further includes second indication information, where the second indication information is used to indicate the identifier information of the frequency domain resource. One way to implement the second indication information is to use a bitmap. For example, a bitmap is included in the power headroom information, and each bit in the bitmap is associated with a frequency domain resource. The bit value in the bitmap is 0, indicating that the terminal device reports the power headroom information of the frequency domain resource associated with the bit.

The terminal device may send power headroom information to the access network device through a MAC layer message or an RRC layer message.

In one implementation, the transceiver 204 in the terminal device can be configured to transmit the power headroom information, or the processor 201 in the terminal device controls the transceiver 204 to transmit the power headroom information.

In one implementation, the transceiver 302 in the access network device can be configured to receive the power headroom information, or the processor 301 in the access network device controls the transceiver 302 to receive the power headroom information.

The embodiments of the present invention further provide a device (for example, an integrated circuit, a wireless device, a circuit module, etc.) for implementing the above method. Implementations of the devices described herein may be stand-alone devices or may be part of a larger device. The device may be (i) a self-contained IC; (ii) a collection of one or more ICs, which may include a memory IC for storing data and/or instructions; (iii) an RFIC, such as an RF receiver or RF transmitter (iv) an ASIC, such as a mobile station modem; (v) a module that can be embedded in other devices; (vi) a receiver, a cellular phone, a wireless device, a handset, or a mobile unit; (vii) other, etc. Wait.

The method and apparatus provided by the embodiments of the present invention may be applied to a terminal device or a network device (which may be collectively referred to as a wireless device). The terminal device or network device or wireless 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 includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement business processing through a process, 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 includes applications such as browsers, contacts, word processing software, and instant messaging software. Moreover, in the embodiment of the present invention, the embodiment of the present invention does not limit the specific structure of the execution body of the method, as long as the transmission signal according to the embodiment of the present invention can be executed by running a program recording the code of the method of the embodiment of the present invention. The method can be communicated. For example, the execution body of the method for wireless communication in the embodiment of the present invention may be a terminal device or a network device, or a function module that can call a program and execute a program in the terminal device or the network device.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may 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 a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

It should be understood that, in various embodiments of the embodiments of the present invention, the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and the present invention should not be The implementation of the embodiments constitutes any limitation.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the 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 achieve the purpose of the solution of the embodiment.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention, or the part contributing to the prior art or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or an access network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The foregoing is only a specific embodiment of the embodiments of the present invention, but the scope of protection of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily use the technical scope disclosed in the embodiments of the present invention. All changes or substitutions are contemplated to be within the scope of the embodiments of the invention.

Claims

A method of wireless communication, comprising:

The terminal device obtains first configuration information, where the first configuration information is used to configure at least one listening reference signal (SRS) of the frequency domain resource;

Determining, by the terminal device, the first SRS on the first time period of the frequency domain resource according to the first configuration information, where the first SRS includes one or more of the at least one SRS;

Determining, by the terminal device, power headroom information of the frequency domain resource according to the physical channel on the first time period of the first SRS and the frequency domain resource;

The terminal device sends the power headroom information on the first time period.
The method of claim 1, wherein the physical channel comprises a physical uplink shared channel and/or a physical uplink control channel.
The method according to any one of claims 1 or 2, wherein the first configuration information comprises at least one of the following:

And indication information for indicating a sending manner of the at least one SRS, where the sending manner includes: an aperiodic sending manner, or a semi-static sending manner, or a periodic sending manner;

Instructing information indicating a function of the at least one SRS, wherein the function comprises: for codebook based transmission, and/or for non-codebook based transmission, and/or for SRS handover And/or for beam management;

Time domain location information of the at least one SRS;

Identification information of the at least one SRS;

Identification information of the frequency domain resource.
The method according to claim 3, wherein the determining, by the terminal device, the first SRS according to the first configuration information comprises:

Determining, by the terminal device, the first SRS according to a sending manner of the at least one SRS; and/or,

Determining, by the terminal device, the first SRS according to a function of the at least one SRS; and/or,

Determining, by the terminal device, the first SRS according to a time domain location of the at least one SRS in the first time period; and/or,

Determining, by the terminal device, the first SRS according to the identifier information of the at least one SRS; or

The first SRS includes all SRSs in the at least one SRS.
The method of any one of 1 to 4, wherein the power headroom information comprises:

One or more first power headroom information, wherein the first power headroom information is a first maximum transmit power of the terminal device in the frequency domain resource and a power of the second SRS sent by the terminal device Poor, the second SRS includes one of at least one SRS included in the first SRS; and

One or more second power headroom information, wherein the second power headroom information is a first maximum transmit power of the terminal device in the frequency domain resource and the terminal device is on a first physical channel a difference in power, and when the physical channel includes a plurality of channels, the first physical channel is one of the plurality of channels, and when the physical channel includes a channel, the first physical channel is a Said channel.
The method of any of 1 to 5, wherein the power headroom information comprises:

a third power headroom information, wherein the third power headroom information is a difference between a first maximum transmit power of the terminal device in the frequency domain resource and a power of the first SRS sent by the terminal device; as well as,

And a fourth power headroom information, where the fourth power headroom information is a difference between a first maximum transmit power of the terminal device in the frequency domain resource and a power of the terminal device on the physical channel.
The method of any one of 1 to 6, wherein the power headroom information comprises:

a fifth power headroom information, where the fifth power headroom information is a difference between a first maximum transmit power of the terminal device and the first transmit power of the frequency domain resource, where the first transmit power And transmitting, by the terminal device, a sum of power of the first SRS and power of the physical channel.
The method according to any one of claims 5 to 7, further comprising:

The terminal device obtains second configuration information, where the second configuration information is used to indicate:

Receiving, by the terminal device, a power control command of a physical channel and an SRS, respectively; or

Receiving, by the terminal device, a physical channel on the frequency domain resource and a power control command of an SRS on the frequency domain resource, respectively; or

The second maximum transmit power used by the terminal device to transmit the SRS and the second maximum transmit power used on the physical channel, where the second maximum transmit power for transmitting the SRS and the second for transmitting on the physical channel The maximum transmit power is different.

Transmitting, by the terminal device, a second maximum transmit power of the SRS and a second maximum transmit power on the physical channel on the frequency domain resource on the frequency domain resource, where The second maximum transmit power of the SRS transmitted on the domain resource is different from the second maximum transmit power used on the physical channel.
The method of claim 5, wherein the power headroom information further comprises:

One or more first indication information, where the first indication information is used to indicate identification information of one SRS of the at least one SRS included in the first SRS, the first indication information and the first power headroom Information association.
The method of any one of 5 to 9, wherein the power headroom information further comprises:

The first maximum transmit power of the terminal device in the frequency domain resource; and/or

Transmitting, by the terminal device, a first maximum transmit power of the first SRS; and/or

a first maximum transmit power of the terminal device on the physical channel; and/or

The first maximum transmit power of the terminal device; and/or,

The second indication information is used to indicate the identifier information of the frequency domain resource.
A method of wireless communication, comprising:

The access network device sends the first configuration information to the terminal device, where the first configuration information is used to configure at least one listening reference signal (SRS) of the frequency domain resource;

Determining, by the access network device, a first SRS on a first time period of the frequency domain resource, where the first SRS includes one or more of the at least one SRS;

The access network device receives power headroom information of the frequency domain resource that is sent by the terminal device in the first time period, where the power headroom information is based on the first SRS and the The physical channel on the first time period of the frequency domain resource is determined.
The method of claim 11, wherein the physical channel comprises a physical uplink shared channel and/or a physical uplink control channel.
The method according to any one of claims 11 or 12, wherein the first configuration information comprises at least one of the following:

And indication information for indicating a sending manner of the at least one SRS, where the sending manner includes: an aperiodic sending manner, or a semi-static sending manner, or a periodic sending manner;

Instructing information indicating a function of the at least one SRS, wherein the function comprises: for codebook based transmission, and/or for non-codebook based transmission, and/or for SRS handover And/or for beam management;

Time domain location information of the at least one SRS;

Identification information of the at least one SRS;

Identification information of the frequency domain resource.
The method according to claim 13, wherein the determining, by the access network device, the first SRS comprises:

Determining, by the access network device, the first SRS according to a sending manner of the at least one SRS; and/or,

Determining, by the access network device, the first SRS according to a function of the at least one SRS; and/or,

Determining, by the access network device, the first SRS according to a time domain location of the at least one SRS in the first time period; and/or,

Determining, by the access network device, the first SRS according to the identifier information of the at least one SRS; or

The first SRS includes all SRSs in the at least one SRS.
The method of any one of 11 to 14, wherein the power headroom information comprises:

One or more first power headroom information, wherein the first power headroom information is a first maximum transmit power of the terminal device in the frequency domain resource and a power of the second SRS sent by the terminal device Poor, the second SRS includes one of at least one SRS included in the first SRS; and

One or more second power headroom information, wherein the second power headroom information is a first maximum transmit power of the terminal device in the frequency domain resource and the terminal device is on a first physical channel a difference in power, and when the physical channel includes a plurality of channels, the first physical channel is one of the plurality of channels, and when the physical channel includes a channel, the first physical channel is a Said channel.
The method of any one of 11 to 15, wherein the power headroom information comprises:

a third power headroom information, wherein the third power headroom information is a difference between a first maximum transmit power of the terminal device in the frequency domain resource and a power of the first SRS sent by the terminal device; as well as,

And a fourth power headroom information, where the fourth power headroom information is a difference between a first maximum transmit power of the terminal device in the frequency domain resource and a power of the terminal device on the physical channel.
The method of any one of 11 to 16, wherein the power headroom information comprises:

a fifth power headroom information, where the fifth power headroom information is a difference between a first maximum transmit power of the terminal device and the first transmit power of the frequency domain resource, where the first transmit power And transmitting, by the terminal device, a sum of power of the first SRS and power of the physical channel.
The method according to any one of claims 15 to 17, wherein the object is separately reported to PH-, characterized in that it further comprises:

The access network device sends second configuration information to the terminal device, where the second configuration information is used to indicate:

The access network device separately sends a power control command of the physical channel and the SRS to the terminal device; or

Transmitting, by the access network device, the physical channel on the frequency domain resource and the power control command of the SRS on the frequency domain resource to the terminal device; or

The second maximum transmit power used by the terminal device to transmit the SRS and the second maximum transmit power used on the physical channel, where the second maximum transmit power for transmitting the SRS and the second for transmitting on the physical channel The maximum transmit power is different.

Transmitting, by the terminal device, a second maximum transmit power of the SRS and a second maximum transmit power on the physical channel on the frequency domain resource on the frequency domain resource, where The second maximum transmit power of the SRS transmitted on the domain resource is different than the second maximum transmit power on the physical channel on the frequency domain resource.
The method according to claim 15, wherein the power headroom information further comprises:

One or more first indication information, where the first indication information is used to indicate identification information of one SRS of the at least one SRS included in the first SRS, the first indication information and the first power headroom Information association.
The method of any one of 15 to 19, wherein the power headroom information further comprises:

The first maximum transmit power of the terminal device in the frequency domain resource; and/or

Transmitting, by the terminal device, a first maximum transmit power of the first SRS; and/or

a first maximum transmit power of the terminal device on the physical channel; and/or

The first maximum transmit power of the terminal device; and/or,

The second indication information is used to indicate the identifier information of the frequency domain resource.
A communication device, comprising:

a processor and a transceiver coupled to the processor;

The processor is configured to obtain first configuration information, where the first configuration information is used to configure at least one listening reference signal (SRS) of a frequency domain resource;

The processor is further configured to determine, according to the first configuration information, a first SRS on a first time period of the frequency domain resource, where the first SRS includes one or more of the at least one SRS;

The processor is further configured to determine power headroom information of the frequency domain resource according to the physical channel on the first time period of the first SRS and the frequency domain resource;

The transceiver is configured to send the power headroom information on the first time period.
The apparatus according to claim 21, wherein the physical channel comprises a physical uplink shared channel and/or a physical uplink control channel.
The apparatus according to any one of claims 21 or 22, wherein the first configuration information comprises at least one of the following:

And indication information for indicating a sending manner of the at least one SRS, where the sending manner includes: an aperiodic sending manner, or a semi-static sending manner, or a periodic sending manner;

Instructing information indicating a function of the at least one SRS, wherein the function comprises: for codebook based transmission, and/or for non-codebook based transmission, and/or for SRS handover And/or for beam management;

Time domain location information of the at least one SRS;

Identification information of the at least one SRS;

Identification information of the frequency domain resource.
The device according to claim 23, wherein the determining the first SRS according to the first configuration information comprises:

The processor, configured to determine the first SRS according to a sending manner of the at least one SRS; and/or,

The processor, configured to determine the first SRS according to a function of the at least one SRS; and/or,

The processor, configured to determine the first SRS according to a time domain location of the at least one SRS in the first time period; and/or,

The processor is configured to determine the first SRS according to the identifier information of the at least one SRS; or

The first SRS includes all SRSs in the at least one SRS.
The device of any one of 21 to 24, wherein the power headroom information comprises:

One or more first power headroom information, wherein the first power headroom information is a difference between a first maximum transmit power of the apparatus in the frequency domain resource and a power of the second SRS sent by the apparatus, The second SRS includes one of at least one SRS included in the first SRS;

One or more second power headroom information, wherein the second power headroom information is a first maximum transmit power of the device in the frequency domain resource and a power of the device on a first physical channel Poor, and when the physical channel includes multiple channels, the first physical channel is one of the multiple channels, and when the physical channel includes one channel, the first physical channel is the channel .
The device of any one of 21 to 25, wherein the power headroom information comprises:

a third power headroom information, wherein the third power headroom information is a difference between a first maximum transmit power of the apparatus in the frequency domain resource and a power of the apparatus to send the first SRS;

And a fourth power headroom information, wherein the fourth power headroom information is a difference between a first maximum transmit power of the device in the frequency domain resource and a power of the device on the physical channel.
The device of any one of 21 to 26, wherein the power headroom information comprises:

a fifth power headroom information, where the fifth power headroom information is a difference between a first maximum transmit power of the device and the first transmit power of the frequency domain resource, where the first transmit power is The apparatus transmits a sum of power of the first SRS and power on the physical channel.
The device according to any one of claims 25 to 27, further comprising:

The processor is configured to obtain second configuration information, where the second configuration information is used to indicate:

The device receives power control commands for the physical channel and the SRS, respectively; or

The device respectively receives a physical channel on the frequency domain resource and a power control command of an SRS on the frequency domain resource; or

The apparatus is configured to transmit a second maximum transmit power of the SRS and a second maximum transmit power for use on the physical channel, wherein the second maximum transmit power for transmitting the SRS and the second maximum for the physical channel The transmission power is different.

The apparatus is configured to transmit, on the frequency domain resource, a second maximum transmit power of an SRS and a second maximum transmit power on a physical channel on the frequency domain resource, where The second maximum transmit power of the SRS transmitted on the resource is different from the second maximum transmit power used on the physical channel on the frequency domain resource.
The device according to claim 25, wherein the power headroom information further comprises:

One or more first indication information, where the first indication information is used to indicate identification information of one SRS of the at least one SRS included in the first SRS, the first indication information and the first power headroom Information association.
The device of any one of 25 to 29, wherein the power headroom information further comprises:

The first maximum transmit power of the device in the frequency domain resource; and/or

Transmitting, by the apparatus, a first maximum transmit power of the first SRS; and/or

a first maximum transmit power of the apparatus on the physical channel; and/or

The first maximum transmit power of the device; and/or,

The second indication information is used to indicate the identifier information of the frequency domain resource.
A communication device, comprising:

a processor and a transceiver coupled to the processor;

The transceiver is configured to send first configuration information to the terminal device, where the first configuration information is used to configure at least one listening reference signal (SRS) of the frequency domain resource;

The processor is configured to determine a first SRS on a first time period of the frequency domain resource, where the first SRS includes one or more of the at least one SRS;

The transceiver is further configured to receive power headroom information of the frequency domain resource that is sent by the terminal device on the first time period, where the power headroom information is based on the first SRS and The physical channel on the first time period of the frequency domain resource is determined.
The apparatus of claim 31, wherein the physical channel comprises a physical uplink shared channel and/or a physical uplink control channel.
The apparatus according to any one of claims 31 or 32, wherein the first configuration information comprises at least one of the following:

And indication information for indicating a sending manner of the at least one SRS, where the sending manner includes: an aperiodic sending manner, or a semi-static sending manner, or a periodic sending manner;

Instructing information indicating a function of the at least one SRS, wherein the function comprises: for codebook based transmission, and/or for non-codebook based transmission, and/or for SRS handover And/or for beam management;

Time domain location information of the at least one SRS;

Identification information of the at least one SRS;

Identification information of the frequency domain resource.
The apparatus according to claim 33, wherein said determining said first SRS comprises:

The processor, configured to determine the first SRS according to a sending manner of the at least one SRS; and/or,

The processor, configured to determine the first SRS according to a function of the at least one SRS; and/or,

The processor, configured to determine the first SRS according to a time domain location of the at least one SRS in the first time period; and/or,

The processor is configured to determine the first SRS according to the identifier information of the at least one SRS; or

The first SRS includes all SRSs in the at least one SRS.
The device of any one of 31 to 34, wherein the power headroom information comprises:

One or more first power headroom information, wherein the first power headroom information is a power of the terminal device transmitting the second SRS at the first largest transmission power of the frequency domain resource and the terminal device a difference that the second SRS includes one of the at least one SRS included in the first SRS;

One or more second power headroom information, wherein the second power headroom information is a first maximum transmit power of the terminal device in the frequency domain resource and the terminal device is on a first physical channel a difference in power, and when the physical channel includes a plurality of channels, the first physical channel is one of the plurality of channels, and when the physical channel includes a channel, the first physical channel is a Said channel.
The device of any one of 31 to 35, wherein the power headroom information comprises:

a third power headroom information, wherein the third power headroom information is a difference between a first maximum transmit power of the terminal device in the frequency domain resource and a power of the first SRS sent by the terminal device; as well as,

And a fourth power headroom information, where the fourth power headroom information is a difference between a first maximum transmit power of the terminal device in the frequency domain resource and a power of the terminal device on the physical channel.
The device of any one of 31 to 36, wherein the power headroom information comprises:

a fifth power headroom information, where the fifth power headroom information is a difference between a first maximum transmit power of the terminal device and the first transmit power of the frequency domain resource, where the first transmit power And transmitting, by the terminal device, a sum of power of the first SRS and power of the physical channel.
The device according to any one of claims 35 to 37, further comprising:

The transceiver is configured to send second configuration information to the terminal device, where the second configuration information is used to indicate:

Transmitting, by the transceiver, a power control command of a physical channel and an SRS to the terminal device; or

Transmitting, by the transceiver, the physical channel on the frequency domain resource and the power control command of the SRS on the frequency domain resource to the terminal device; or

The second maximum transmit power used by the terminal device to transmit the SRS and the second maximum transmit power used on the physical channel, where the second maximum transmit power for transmitting the SRS and the second for transmitting on the physical channel Maximum transmit power is different; or

Transmitting, by the terminal device, a second maximum transmit power of the SRS and a second maximum transmit power on the physical channel on the frequency domain resource, where the terminal device is configured to send the SRS The two maximum transmit powers are different from the second maximum transmit power used on the physical channel.
The device according to claim 35, wherein the power headroom information further comprises:

One or more first indication information, where the first indication information is used to indicate identification information of one SRS of the at least one SRS included in the first SRS, the first indication information and the first power headroom Information association.
The device of any one of 35 to 39, wherein the power headroom information further comprises:

The first maximum transmit power of the terminal device in the frequency domain resource; and/or

Transmitting, by the terminal device, a first maximum transmit power of the first SRS; and/or

a first maximum transmit power of the terminal device on the physical channel; and/or

The first maximum transmit power of the terminal device; and/or,

The second indication information is used to indicate the identifier information of the frequency domain resource.
A communication device, comprising:

a processor and a memory coupled to the processor;

The memory is for storing instructions;

The processor is configured to read and execute the instructions in the memory such that the communication device performs the method of any one of claims 1-20.
A processor readable storage medium, comprising instructions that, when executed on a processor, cause the processor to perform the method of any one of claims 1 to 20.