CN116980882A - Power headroom report transmission method, device, terminal and network side equipment - Google Patents

Power headroom report transmission method, device, terminal and network side equipment Download PDF

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Publication number
CN116980882A
CN116980882A CN202210422228.4A CN202210422228A CN116980882A CN 116980882 A CN116980882 A CN 116980882A CN 202210422228 A CN202210422228 A CN 202210422228A CN 116980882 A CN116980882 A CN 116980882A
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China
Prior art keywords
report
terminal
power
signal
power headroom
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CN202210422228.4A
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Chinese (zh)
Inventor
应祚龙
吴凯
李东儒
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN202210422228.4A priority Critical patent/CN116980882A/en
Publication of CN116980882A publication Critical patent/CN116980882A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/06—Generation of reports
    • H04L43/065—Generation of reports related to network devices

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

Abstract

The application discloses a power headroom report transmission method, a device, a terminal and network side equipment, belonging to the field of mobile communication, wherein the power headroom report transmission method of the embodiment of the application comprises the following steps: the terminal reports a first report according to the first information, wherein the first report comprises a first power headroom report related to back scattering communication; wherein the terminal is a terminal that transmits a signal to a backscatter communication device in a backscatter communication system.

Description

Power headroom report transmission method, device, terminal and network side equipment
Technical Field
The application belongs to the technical field of mobile communication, and particularly relates to a power headroom report transmission method, a device, a terminal and network side equipment.
Background
In a New Radio, NR, system, a terminal transmits a power headroom report (PowerHeadroomReport, PHR) through a medium access control unit (Medium Access Control Control Element, MAC CE) in addition to uplink signal transmission at a certain power, where the report includes information of a power headroom (PowerHeadroom, PH) to indicate how much headroom is available for the terminal at the uplink transmission power. The PH is an important reference for the network to allocate resources for the terminal, if the PH is positive, it indicates that the terminal can continue to increase the transmission power, and if the PH is negative, it indicates that the current uplink transmission power has exceeded the maximum transmission power allowed by the terminal, and when the terminal is scheduled again, it can reduce the resource allocation of the terminal.
Unlike the NR system, in a backscatter communication (Backscatter Communication, BSC) system, for example, a Passive internet of things (Passive Internet of Things, passive IOT), a terminal complexity may be very low, and after a new terminal (also referred to as a user equipment (UserEquipment, UE)) is introduced in the backscatter communication system, a carrier signal or a control signal needs to be sent to a tag (tag) device, and a network side device cannot evaluate a power headroom of the terminal.
Disclosure of Invention
The embodiment of the application provides a power headroom report transmission method, a device, a terminal and network side equipment, which can solve the problem that the network side equipment cannot evaluate the power headroom of the terminal.
In a first aspect, a power headroom report transmission method is provided, applied to a terminal, and the method includes:
the terminal reports a first report according to the first information, wherein the first report comprises a first power headroom report related to back scattering communication; wherein the terminal is a terminal that transmits a signal to a backscatter communication device in a backscatter communication system.
In a second aspect, there is provided a power headroom report transmission device, comprising:
the triggering module is used for determining to trigger reporting of the first report according to the first information;
A sending module, configured to report the first report, where the first report includes a first power headroom report related to backscatter communication; the power headroom report transmission device is a terminal for transmitting signals to a backscatter communication device in a backscatter communication system.
In a third aspect, a power headroom report transmission method is provided, and is applied to a network side device, where the method includes:
the network side equipment receives a first report from a terminal, wherein the first report comprises a first power headroom report related to back-scattering communication, and the terminal is used for transmitting signals to the back-scattering communication equipment in a back-scattering communication system.
In a fourth aspect, there is provided a power headroom report transmission device, comprising:
a receiving module for receiving a first report from a terminal;
the analysis module is used for analyzing the first report;
wherein the first report includes a first power headroom report related to backscatter communication, and the terminal is a terminal that transmits a signal to a backscatter communication device in a backscatter communication system.
In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.
In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to determine to trigger reporting of a first report according to first information, and the communication interface is configured to report the first report.
In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which program or instructions when executed by the processor implement the steps of the method as described in the first aspect.
In an eighth aspect, a network side device is provided, where the network side device includes a processor and a communication interface, where the processor is configured to parse the first report, and the communication interface is configured to receive the first report from a terminal.
A ninth aspect provides a power headroom report transmission system, comprising: a terminal and a network side device, the terminal being operable to perform the steps of the power headroom report transmission method as described in the first aspect, the network side device being operable to perform the steps of the power headroom report transmission method as described in the third aspect.
In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect.
In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the third aspect.
In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the power headroom report transmission method according to the first aspect, or to implement the steps of the power headroom report transmission method according to the third aspect.
In the embodiment of the application, the first report is reported according to the first information, and the first report comprises the power headroom report related to the back-scattering communication, so that the power headroom of the terminal in the back-scattering communication system can be accurately estimated.
Drawings
Fig. 1 is a schematic diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 2 is a flowchart of a power headroom report transmission method according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a backscatter communication system provided in accordance with an embodiment of the present application;
FIG. 4 is a schematic diagram of a backscatter communications device according to an embodiment of the present application;
fig. 5 is a flowchart of another power headroom report transmission method according to an embodiment of the present application;
FIG. 6 is a schematic diagram of another backscatter communications device provided in accordance with an embodiment of the present application;
fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a terminal implementing an embodiment of the present application;
fig. 9 is a schematic structural diagram of a network side device for implementing an embodiment of the present application.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.
It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier FrequencyDivision Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes the new for purposes of exampleAir-interface (NR) systems and NR terminology is used in much of the description below, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) th Generation, 6G) communication system.
Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmitting/receiving point (TransmittingReceivingPoint, TRP), or some other suitable terminology in the art, a WLAN access point, a WiFi node, etc., and is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: a core network node, a core network function, a mobility management entity (Mobility Management Entity, MME), an access mobility management function (Access and Mobility Management Function, AMF), a session management function (Session Management Function, SMF), a user plane function (User Plane Function, UPF), a policy control function (Policy Control Function, PCF), a policy and charging rules function (Policy and Charging Rules Function, PCRF), an edge application service discovery function (EdgeApplicationServerDiscoveryFunction, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), a home subscriber server (Home Subscriber Server, HSS), a centralized network configuration (Centralized network configuration, CNC), a network storage function (Network Repository Function, NRF), a network opening function (NetworkExposureFunction, NEF), a local NEF (LocalNEF, or L-NEF), a binding support function (Binding Support Function, BSF), an application function (Application Function, AF), and the like. It should be noted that, in the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.
The power headroom report transmission method, the device, the terminal and the network side equipment provided by the embodiment of the application are described in detail through some embodiments and application scenes thereof by combining the attached drawings.
As shown in fig. 2 and 3, the embodiment of the present application provides a power headroom report transmission method, and the execution body of the method is a terminal, in other words, the method may be executed by software or hardware installed in the terminal. The method comprises the following steps.
S210, the terminal reports a first report according to first information, wherein the first report comprises a power headroom report related to back scattering communication; wherein the terminal is a terminal that transmits a signal to a backscatter communication device in a backscatter communication system.
As shown in fig. 3, the backscatter communication system includes a terminal 301, a network side device 302, and a first device 303, where the first device 303 is a backscatter communication device, such as a tag. The terminal 301 needs to transmit a first signal to a first device 303 in a backscatter communication system. Wherein, the first signal may be a carrier signal or a control signal. In order to be able to accurately evaluate how much transmission power is available to the terminal in the backscatter communication system after having transmitted the first signal, the terminal needs to report a first report according to the first information, where the first report may include a power headroom report related to the backscatter communication.
In one embodiment, the first report may include a second power headroom report for an uplink channel in addition to a first power headroom report related to backscatter communications.
The second power headroom report may be at least one of:
a power headroom report for a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH);
power headroom reporting for sounding reference signals (Sounding Reference Signal, SRS).
In other words, the first report may include at least one of a BSC-related PHR, PUSCHHPHR, and SRSPHR.
It should be appreciated that the PUSCHHPHR and SRS PHR may be PUSCHHPHR and SRSPHR of a multiplexed NR system. But may also be unable to be multiplexed due to the different BSC characteristics, the first device may only be able to operate in a limited Frequency Band (Band), such as the ultra high Frequency (Ultra High Frequency, UHF) Band of Radio Frequency identification (Radio Frequency IDentification, RFID), in view of the low cost characteristics of the backscatter communication system. Therefore, the Band of the BSC is not necessarily capable of multiplexing the PUSCHHPHR and SRSPHR of other bands in the NR system.
In one embodiment, the first information includes at least one of:
a triggering condition for the first report;
Configuration information of the first report.
Step S210 includes: and the terminal triggers the reporting process of the first report according to the triggering condition of the first report, and reports the first report to the network side equipment according to the configuration information of the first report.
The network side equipment can obtain the power headroom information of the terminal based on the first report and is used for carrying out power adjustment on the terminal.
As can be seen from the technical solutions of the foregoing embodiments, in the embodiments of the present application, a first report is reported according to first information, where the first report includes a power headroom report related to backscatter communication, so that power headroom of a terminal in a backscatter communication system can be accurately estimated.
Based on the above embodiment, optionally, the triggering condition of the first report is related to at least one of:
first indication information of network side equipment;
the terminal sends a first signal to the first device; wherein the first device is a backscatter communications device;
the power margin of the terminal changes;
counting a Round (Round), which is an interval time for the terminal to transmit a counting command;
feedback information of the first device to the first signal.
It should be appreciated that the inventory command may include any control signal having an inventory function for the target device, such as a Query (Query) signal, a repeat Query (Query rep) signal, an Answer (ACK) signal, a Read signal, a Write signal, a random request (req_rn) signal, and the like. The two inventory commands before and after the inventory round may be the same or different, for example, the interval between the terminal sending the query signal for the first time and the next time may be referred to as an inventory round.
In the backscatter communication system, after the terminal establishes a connection with the first device, the reporting of the first report needs to be triggered according to the configured triggering condition. In an embodiment, the terminal may trigger the reporting of the first report based on first indication information of the terminal by the network side device.
The first indication information may be used to indicate a trigger condition or other configuration information for reporting the first report, and in an embodiment, the first indication information of the network side device is used to indicate at least one of the following:
triggering the network state information of the first report;
triggering the first report and triggering other power headroom reports of a serving cell except the first power headroom report at the same time, wherein the power headroom reports can be PUSCHHPHR or SRSPHR;
And the power adjustment information of the terminal.
In one embodiment, the network status information triggering the first report includes at least one of:
secondary Cell (SCell) Activation;
secondary cell Deactivation (Deactivation);
adding Primary secondary cells (PSCell), e.g. Primary secondary cells are newly added or newly changed (PSCell is newly added or changed);
a BandWidth Part (BWP) switch (switching), e.g. switches an activated BWP from a dormant (dorman) BWP to a non-dormant (non-dorman) BWP.
In another embodiment, the terminal may trigger reporting of the first report when the first signal is sent to the first device.
It should be appreciated that the first signal is at least one of:
carrier wave (carrier wave) signals, such as stimulus signals;
control signals such as Select signals, inquiry signals, repeat inquiry signals, reply signals, read signals, write signals, random request signals, etc.
The triggering condition of the first report related to the first signal sent by the terminal to the first device includes at least one of:
Triggering in a first time interval before transmitting the first signal;
triggering within a second time interval after transmitting the first signal, the first time interval and the second time interval may be the same or different;
triggering when receiving second indication information from the network side equipment, wherein the second indication information comprises an indication that the terminal sends the first signal, and the terminal can trigger the reporting of the first report when receiving the second indication information.
For example, when the terminal needs to query the first device, a query signal is sent, and the terminal may trigger reporting of the first report when the query signal is sent, or in a first time interval before or a second time interval after sending the query signal; or triggering the reporting of the first report after receiving the indication information of the network side equipment indicating to send the query signal.
In another embodiment, the terminal may trigger the reporting of the first report based on a variation of the power headroom of the terminal. The change condition of the power headroom of the terminal is determined by the uplink transmission power of the terminal, that is, when the terminal transmits an uplink signal, the uplink transmission power adopted is adjusted to cause the change of the power headroom, so that the reporting of the first report is triggered, for example, if the terminal firstly transmits the uplink signal with the maximum uplink transmission power, and then adjusts to half of the maximum uplink transmission power to transmit the uplink signal, the change of the power headroom is caused, so that the reporting of the first report is triggered; wherein, the uplink transmitting power of the terminal is determined by at least one of the following:
Pre-defined or pre-configured uplink transmit power;
receiving third indication information from the network side equipment, wherein the third indication information is used for adjusting at least one of the following:
the uplink transmission power of the terminal may be represented as P BSC ；
The maximum uplink transmit power for the terminal to transmit backscatter communications may be denoted as P CMAX_BSC 。
In another embodiment, the terminal may trigger reporting of a first report based on an inventory round, where the triggering condition of the first report related to the inventory round includes at least one of:
triggering at the beginning or end of every N inventory rounds;
triggering when the target command of the checking round is completed, for example, triggering reporting of the first report after the terminal sends the ACK in one checking round, or triggering reporting of the first report after the terminal sends the ACK in the last checking round in N checking rounds;
wherein N is a positive integer.
In another embodiment, the terminal may trigger the reporting of the first report based on feedback information of the first device to the first signal. The triggering condition of the first report related to feedback information of the first device to the first signal comprises at least one of:
Triggering upon receiving feedback information for the first signal from the first device;
and receiving fourth indication information from the network side equipment, wherein the fourth indication information is sent by the network side equipment after receiving feedback information of the first signal from the first equipment.
It should be understood that the feedback signal may be a back-scattered signal that is fed back by the first device according to the first information, where the feedback signal includes a display or implicitly indicating whether the first device receives the first signal, and the feedback signal may also be used to instruct the terminal to report the first report.
The first information may further include configuration information of the first report, and in one embodiment, the configuration information of the first report may include:
time-frequency resources of the first report;
the terminal transmits configuration information of a first signal to a first device, wherein the first device is a backscatter communication device.
In one embodiment, the configuration information of the first signal includes at least one of:
channel information of the first signal, for example, a frequency band corresponding to the first signal;
and generating the first signal.
The configuration information of the first signal may define a new physical channel or first signal for a control channel of the backscatter communication system, and give a generation procedure of the new physical channel or first signal.
In one embodiment, the power headroom in the first power headroom report is determined by the first power and the second power of the terminal; wherein the first power is the maximum uplink transmission power P of the terminal for transmitting the backscatter communication CMAX_BSC The second power is the estimated power P of the transmission of the terminal for the backscatter communication BSC 。
Specifically, the power headroom PH (i) in the first power headroom report is determined by the following formula:
PH(i)＝P CMAX_BSC -P BSC (i)
wherein P is CMAX_BSC For the first power, P BSC (i) For the second power, the i is used to indicate a transmission occasion (transmission occasion).
The P is CMAX_BSC Maximum transmission power P in NR system CMAX Different, the maximum uplink transmit power defined by BSC alone may be expressed as, for exampleI.e. the terminal can only contribute half the maximum transmit power for BSC transmissions.
The transmission estimated power may be predefined or preconfigured by the protocol, or may be configured or indicated by the network side device.
According to the technical scheme of the embodiment, the embodiment of the application triggers the reporting of the first report by setting the triggering conditions of the first reports of a plurality of types, so that the power margin of the terminal in the back scattering communication system can be accurately estimated.
According to the power headroom report transmission method provided by the embodiment of the application, the execution main body can be the power headroom report transmission device. In the embodiment of the present application, a power headroom report transmission method performed by a power headroom report transmission device is taken as an example, and the power headroom report transmission device provided in the embodiment of the present application is described.
As shown in fig. 4, the power headroom report transmission device includes: a triggering module 401 and a sending module 402.
The trigger module 401 is configured to determine to trigger reporting of the first report according to the first information; the sending module 402 is configured to report the first report, where the first report includes a first power headroom report related to back-scattered communication; the power headroom report transmission device is a terminal for transmitting signals to a backscatter communication device in a backscatter communication system.
Optionally, the first report further includes a second power headroom report for an uplink channel.
Optionally, the second power headroom report may be at least one of:
a power headroom report for the physical uplink shared channel;
power headroom reporting for sounding reference signals.
Optionally, the first information includes at least one of:
a triggering condition for the first report;
Configuration information of the first report.
Optionally, the first signal is at least one of:
a carrier signal;
a control signal.
As can be seen from the technical solutions of the foregoing embodiments, in the embodiments of the present application, a first report is reported according to first information, where the first report includes a power headroom report related to backscatter communication, so that power headroom of a power headroom report transmission device in a backscatter communication system can be accurately estimated.
Based on the above embodiment, optionally, the triggering condition of the first report is related to at least one of:
first indication information of network side equipment;
a first signal transmitted to a first device; wherein the first device is a backscatter communications device;
a power headroom variation;
counting the rounds, wherein the counting rounds are the interval time for sending the counting command;
feedback information of the first device to the first signal.
Optionally, the first indication information of the network side device is used to indicate at least one of the following:
triggering the network state information of the first report;
triggering the first report and triggering other power headroom reports of a serving cell except the first power headroom report at the same time;
Power adjustment information.
Optionally, the network status information triggering the first report includes at least one of:
activating a secondary cell;
secondary cell deactivation;
adding a primary cell and a secondary cell;
BWP switching.
Optionally, the triggering condition of the first report related to the first signal sent to the first device includes at least one of:
triggering in a first time interval before transmitting the first signal;
triggering in a second time interval after transmitting the first signal;
triggering when receiving second indication information from the network side equipment, wherein the second indication information comprises indication of sending the first signal.
Optionally, the variation of the power headroom is determined by the uplink transmission power; wherein the uplink transmission power is determined by at least one of:
pre-defined or pre-configured uplink transmit power;
receiving third indication information from the network side equipment, wherein the third indication information is used for adjusting at least one of the following:
uplink transmission power;
maximum uplink transmit power for transmitting backscatter communications.
Optionally, the triggering condition of the first report related to the inventory round includes at least one of:
Triggering at the beginning or end of every N inventory rounds;
triggering when the target command of the checking round is completed;
wherein N is a positive integer.
Optionally, the triggering condition of the first report related to the feedback information of the first device to the first signal includes at least one of:
triggering upon receiving feedback information for the first signal from the first device;
and receiving fourth indication information from the network side equipment, wherein the fourth indication information is sent by the network side equipment after receiving feedback information of the first signal from the first equipment.
Optionally, feedback information on the first signal is used to indicate reporting of the first report.
Optionally, the configuration information of the first report includes:
time-frequency resources of the first report;
configuration information of a first signal transmitted to a first device, the first device being a backscatter communication device.
Optionally, the configuration information of the first signal includes at least one of:
channel information of the first signal;
and generating the first signal.
Optionally, the power headroom in the first power headroom report is determined by a first power and a second power; the first power is the maximum uplink transmission power for transmitting the backscatter communication, and the second power is the transmission estimation power for the backscatter communication.
Optionally, the power headroom PH (i) in the first power headroom report is determined by the following formula:
PH(i)＝P CMAX_BSC -P BSC (i)
wherein P is CMAX_BSC For the first power, P BSC (i) For the second power, the i is used to indicate a transmission opportunity.
As can be seen from the technical solutions of the foregoing embodiments, in the embodiments of the present application, by setting a triggering condition of multiple types of first reports, reporting of the first reports is triggered, so that power headroom of a power headroom report transmission device in a backscatter communication system can be accurately estimated.
The power headroom report transmission device in the embodiment of the application can be an electronic device, such as an electronic device with an operating system, or can be a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.
The power headroom report transmission device provided by the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 2 to 3, and achieve the same technical effects, and in order to avoid repetition, the description is omitted here.
As shown in fig. 5, an embodiment of the present application provides a power headroom report transmission method, and an execution body of the method is a network side device, in other words, the method may be executed by software or hardware installed in the network side device. The method comprises the following steps.
S510, the network side device receives a first report from a terminal, where the first report includes a first power headroom report related to backscatter communication, and the terminal is a terminal that sends a signal to a backscatter communication device in a backscatter communication system.
Optionally, the first report further includes a second power headroom report for an uplink channel.
Optionally, the second power headroom report may be at least one of:
a power headroom report for the physical uplink shared channel;
power headroom reporting for sounding reference signals.
Optionally, the first report is triggered according to first information, the first information including at least one of:
a triggering condition for the first report;
configuration information of the first report.
Optionally, the first signal is at least one of:
a carrier signal;
a control signal.
Step S510 may implement the method embodiments shown in fig. 2 and fig. 3, and obtain the same technical solutions, and the repetition of which is not repeated here.
As can be seen from the technical solutions of the foregoing embodiments, in the embodiments of the present application, a first report is received from a terminal, where the first report includes a power headroom report related to backscatter communication, and the terminal is a terminal that sends a signal to a backscatter communication device in a backscatter communication system, so that the power headroom of the terminal in the backscatter communication system can be accurately estimated.
Based on the above embodiment, optionally, the triggering condition of the first report is related to at least one of:
the first indication information of the network side equipment;
the terminal sends a first signal to the first device; wherein the first device is a backscatter communications device;
the power margin of the terminal changes;
counting the round, wherein the counting round is the interval time for the terminal to send the counting command;
feedback information of the first device to the first signal.
Optionally, the first indication information of the network side device is used to indicate at least one of the following:
triggering the network state information of the first report;
triggering the first report and triggering other power headroom reports of a serving cell except the first power headroom report at the same time;
And the power adjustment information of the terminal.
Optionally, the network status information triggering the first report includes at least one of:
activating a secondary cell;
secondary cell deactivation;
adding a primary cell and a secondary cell;
BWP switching.
Optionally, the trigger condition related to the first signal sent by the terminal to the first device includes at least one of:
triggering in a first time interval before transmitting the first signal;
triggering in a second time interval after transmitting the first signal;
triggering when receiving second indication information from the network side equipment, wherein the second indication information comprises an indication that the terminal sends the first signal.
Optionally, the variation condition of the power headroom of the terminal is determined by the uplink transmission power of the terminal; wherein, the uplink transmitting power of the terminal is determined by at least one of the following:
pre-defined or pre-configured uplink transmit power;
receiving third indication information from the network side equipment, wherein the third indication information is used for adjusting at least one of the following:
the uplink transmission power of the terminal;
the terminal is configured to transmit a maximum uplink transmit power for the backscatter communication.
Optionally, the trigger conditions related to the checking round include:
triggering at the beginning or end of every N inventory rounds;
triggering when the target command of the checking round is completed;
wherein N is a positive integer.
Optionally, the trigger condition related to the feedback information of the first device to the first signal includes:
triggering upon receiving feedback information for the first signal from the first device;
and receiving fourth indication information from the network side equipment, wherein the fourth indication information is sent by the network side equipment after receiving feedback information of the first signal from the first equipment.
Optionally, feedback information of the first signal is used to instruct the terminal to report the first report.
Optionally, the configuration information of the first report includes:
time-frequency resources of the first report;
the terminal transmits configuration information of a first signal to a first device, wherein the first device is a backscatter communication device.
Optionally, the configuration information of the first signal includes at least one of:
channel information of the first signal;
and generating the first signal.
Optionally, the power headroom in the first power headroom report is determined by the first power and the second power of the terminal; the first power is the maximum uplink transmission power of the terminal for transmitting the back-scattering communication, and the second power is the transmission estimated power of the terminal for the back-scattering communication.
Optionally, the power headroom PH (i) in the first power headroom report is determined by the following formula:
PH(i)＝P CMAX_BSC -P BSC (i)
wherein, the liquid crystal display device comprises a liquid crystal display device,P CMAX_BSC for the first power, P BSC (i) For the second power, the i is used to indicate a transmission opportunity.
The embodiment of the application can realize the method embodiment corresponding to the terminal side in the above embodiment and obtain the same technical scheme, and the repeated parts are not repeated here.
According to the technical scheme of the embodiment, the embodiment of the application triggers the reporting of the first report by setting the triggering conditions of the first reports of a plurality of types, so that the power margin of the terminal in the back scattering communication system can be accurately estimated.
According to the power headroom report transmission method provided by the embodiment of the application, the execution main body can be the power headroom report transmission device. In the embodiment of the present application, a power headroom report transmission method performed by a power headroom report transmission device is taken as an example, and the power headroom report transmission device provided in the embodiment of the present application is described.
As shown in fig. 6, the power headroom report transmission device includes: the receiving module 601 and the analyzing module 602.
The receiving module 601 is configured to receive a first report from a terminal; the parsing module 602 is configured to parse the first report; wherein the first report includes a first power headroom report related to backscatter communication, and the terminal is a terminal that transmits a signal to a backscatter communication device in a backscatter communication system.
Optionally, the first report further includes a second power headroom report for an uplink channel.
Optionally, the second power headroom report may be at least one of:
a power headroom report for the physical uplink shared channel;
power headroom reporting for sounding reference signals.
Optionally, the first report is triggered according to first information, the first information including at least one of:
a triggering condition for the first report;
configuration information of the first report.
Optionally, the first signal is at least one of:
a carrier signal;
a control signal.
As can be seen from the technical solutions of the foregoing embodiments, in the embodiments of the present application, a first report is received from a terminal, where the first report includes a power headroom report related to backscatter communication, and the terminal is a terminal that sends a signal to a backscatter communication device in a backscatter communication system, so that the power headroom of the terminal in the backscatter communication system can be accurately estimated.
Based on the above embodiment, optionally, the triggering condition of the first report is related to at least one of:
first indication information;
the terminal sends a first signal to the first device; wherein the first device is a backscatter communications device;
The power margin of the terminal changes;
counting the round, wherein the counting round is the interval time for the terminal to send the counting command;
feedback information of the first device to the first signal.
Optionally, the first indication information is used to indicate at least one of the following:
triggering the network state information of the first report;
triggering the first report and triggering other power headroom reports of a serving cell except the first power headroom report at the same time;
and the power adjustment information of the terminal.
Optionally, the network status information triggering the first report includes at least one of:
activating a secondary cell;
secondary cell deactivation;
adding a primary cell and a secondary cell;
BWP switching.
Optionally, the trigger condition related to the first signal sent by the terminal to the first device includes at least one of:
triggering in a first time interval before transmitting the first signal;
triggering in a second time interval after transmitting the first signal;
triggering when receiving second indication information, wherein the second indication information comprises an indication that the terminal sends the first signal.
Optionally, the variation condition of the power headroom of the terminal is determined by the uplink transmission power of the terminal; wherein, the uplink transmitting power of the terminal is determined by at least one of the following:
Pre-defined or pre-configured uplink transmit power;
receiving third indication information, wherein the third indication information is used for adjusting at least one of the following:
the uplink transmission power of the terminal;
the terminal is configured to transmit a maximum uplink transmit power for the backscatter communication.
Optionally, the trigger conditions related to the checking round include:
triggering at the beginning or end of every N inventory rounds;
triggering when the target command of the checking round is completed;
wherein N is a positive integer.
Optionally, the trigger condition related to the feedback information of the first device to the first signal includes:
triggering upon receiving feedback information for the first signal from the first device;
and receiving fourth indication information, wherein the fourth indication information is sent after receiving feedback information of the first signal from the first equipment.
Optionally, feedback information of the first signal is used to instruct the terminal to report the first report.
Optionally, the configuration information of the first report includes:
time-frequency resources of the first report;
the terminal transmits configuration information of a first signal to a first device, wherein the first device is a backscatter communication device.
Optionally, the configuration information of the first signal includes at least one of:
channel information of the first signal;
and generating the first signal.
Optionally, the power headroom in the first power headroom report is determined by the first power and the second power of the terminal; the first power is the maximum uplink transmission power of the terminal for transmitting the back-scattering communication, and the second power is the transmission estimated power of the terminal for the back-scattering communication.
Optionally, the power headroom PH (i) in the first power headroom report is determined by the following formula:
PH(i)＝P CMAX_BSC -P BSC (i)
wherein P is CMAX_BSC For the first power, P BSC (i) For the second power, the i is used to indicate a transmission opportunity.
According to the technical scheme of the embodiment, the embodiment of the application triggers the reporting of the first report by setting the triggering conditions of the first reports of a plurality of types, so that the power margin of the terminal in the back scattering communication system can be accurately estimated.
The power headroom report transmission device in the embodiment of the application can be an electronic device, such as an electronic device with an operating system, or can be a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.
The power headroom report transmission device provided by the embodiment of the present application can implement each process implemented by the method embodiment of fig. 5, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.
Optionally, as shown in fig. 7, the embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, where the memory 702 stores a program or an instruction that can be executed on the processor 701, for example, when the communication device 700 is a terminal, the program or the instruction is executed by the processor 701 to implement the steps of the above power headroom report transmission method embodiment, and the same technical effects can be achieved. When the communication device 700 is a network side device, the program or the instruction, when executed by the processor 701, implements the steps of the above-described embodiments of the power headroom report transmission method, and the same technical effects can be achieved, so that repetition is avoided, and detailed description is omitted here.
The embodiment of the application also provides a terminal which comprises a processor and a communication interface, wherein the processor is used for determining to trigger reporting of the first report according to the first information, and the communication interface is used for reporting the first report. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.
The terminal 800 includes, but is not limited to: at least part of the components of the radio frequency unit 801, the network module 802, the audio output unit 803, the input unit 804, the sensor 805, the display unit 806, the user input unit 807, the interface unit 808, the memory 809, and the processor 810, etc.
Those skilled in the art will appreciate that the terminal 800 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 810 by a power management system for performing functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.
It should be appreciated that in embodiments of the present application, the input unit 804 may include a graphics processing unit (Graphics Processing Unit, GPU) 8041 and a microphone 8042, with the graphics processor 8041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. Touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two parts, a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.
In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 801 may transmit the downlink data to the processor 810 for processing; in addition, the radio frequency unit 801 may send uplink data to the network side device. In general, the radio frequency unit 801 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The memory 809 may be used to store software programs or instructions and various data. The memory 809 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 809 may include volatile memory or nonvolatile memory, or the memory 809 may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (ProgrammableROM, PROM), an erasable programmable Read-only memory (ErasablePROM, EPROM), an electrically erasable programmable Read-only memory (ElectricallyEPROM, EEPROM), or a flash memory, among others. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 809 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.
The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 810.
The radio frequency unit 801 is configured to report the first report, where the first report includes a first power headroom report related to back-scattered communication; wherein the terminal is a terminal for transmitting signals to a backscatter communication device in a backscatter communication system;
a processor 810, configured to determine to trigger reporting of the first report according to the first information;
optionally, the first report further includes a second power headroom report for an uplink channel.
Optionally, the second power headroom report may be at least one of:
a power headroom report for the physical uplink shared channel;
power headroom reporting for sounding reference signals.
Optionally, the first information includes at least one of:
a triggering condition for the first report;
Configuration information of the first report.
Optionally, the first signal is at least one of:
a carrier signal;
a control signal.
The embodiment of the application can accurately evaluate the power margin of the terminal in the back scattering communication system.
Based on the above embodiment, optionally, the triggering condition of the first report is related to at least one of:
first indication information of network side equipment;
a first signal transmitted to a first device; wherein the first device is a backscatter communications device;
a power headroom variation;
counting the rounds, wherein the counting rounds are the interval time for sending the counting command;
feedback information of the first device to the first signal.
Optionally, the first indication information of the network side device is used to indicate at least one of the following:
triggering the network state information of the first report;
triggering the first report and triggering other power headroom reports of a serving cell except the first power headroom report at the same time;
power adjustment information.
Optionally, the network status information triggering the first report includes at least one of:
activating a secondary cell;
secondary cell deactivation;
Adding a primary cell and a secondary cell;
BWP switching.
Optionally, the trigger condition associated with the first signal sent to the first device comprises at least one of:
triggering in a first time interval before transmitting the first signal;
triggering in a second time interval after transmitting the first signal;
triggering when receiving second indication information from the network side equipment, wherein the second indication information comprises indication of sending the first signal.
Optionally, the variation of the power headroom is determined by the uplink transmission power; wherein the uplink transmission power is determined by at least one of:
pre-defined or pre-configured uplink transmit power;
receiving third indication information from the network side equipment, wherein the third indication information is used for adjusting at least one of the following:
uplink transmission power;
maximum uplink transmit power for transmitting backscatter communications.
Optionally, the trigger conditions related to the checking round include:
triggering at the beginning or end of every N inventory rounds;
triggering when the target command of the checking round is completed;
wherein N is a positive integer.
Optionally, the trigger condition related to the feedback information of the first device to the first signal includes:
Triggering upon receiving feedback information for the first signal from the first device;
and receiving fourth indication information from the network side equipment, wherein the fourth indication information is sent by the network side equipment after receiving feedback information of the first signal from the first equipment.
Optionally, feedback information on the first signal is used to indicate reporting of the first report.
Optionally, the configuration information of the first report includes:
time-frequency resources of the first report;
configuration information of a first signal transmitted to a first device, the first device being a backscatter communication device.
Optionally, the configuration information of the first signal includes at least one of:
channel information of the first signal;
and generating the first signal.
Optionally, the power headroom in the first power headroom report is determined by a first power and a second power; the first power is the maximum uplink transmission power for transmitting the backscatter communication, and the second power is the transmission estimation power for the backscatter communication.
Optionally, the power headroom PH (i) in the first power headroom report is determined by the following formula:
PH(i)＝P CMAX_BSC -P BSC (i)
Wherein P is CMAX_BSC For the first power, P BSC (i) For the second power, the i is used to indicate a transmission opportunity.
The embodiment of the application can accurately evaluate the power margin of the terminal in the back scattering communication system.
The embodiment of the application also provides network side equipment which comprises a processor and a communication interface, wherein the processor is used for analyzing the first report, and the communication interface is used for receiving the first report from the terminal. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.
Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 9, the network side device 900 includes: an antenna 91, a radio frequency device 92, a baseband device 93, a processor 94 and a memory 95. The antenna 91 is connected to a radio frequency device 92. In the uplink direction, the radio frequency device 92 receives information via the antenna 91, and transmits the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes information to be transmitted, and transmits the processed information to the radio frequency device 92, and the radio frequency device 92 processes the received information and transmits the processed information through the antenna 91.
The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 93, and the baseband apparatus 93 includes a baseband processor.
The baseband device 93 may, for example, comprise at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 9, where one chip, for example, a baseband processor, is connected to the memory 95 through a bus interface, so as to invoke a program in the memory 95 to perform the network device operation shown in the above method embodiment.
The network-side device may also include a network interface 96, such as a common public radio interface (common public radio interface, CPRI).
Specifically, the network side device 900 of the embodiment of the present application further includes: instructions or programs stored in the memory 95 and executable on the processor 94, the processor 94 invokes the instructions or programs in the memory 95 to perform the methods performed by the modules shown in fig. 6 and achieve the same technical effects, and are not repeated here.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above power headroom report transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here.
Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.
The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running a program or instructions to realize the processes of the power headroom report transmission method embodiment, and the same technical effects can be achieved, so that repetition is avoided and redundant description is omitted.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.
The embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement the respective processes of the above embodiments of the power headroom report transmission method, and achieve the same technical effects, and are not repeated herein.
The embodiment of the application also provides a power headroom report transmission system, which comprises: the terminal and the network side device can be used for executing the steps of the power headroom report transmission method, and the network side device can be used for executing the steps of the power headroom report transmission method.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims (39)

1. A power headroom report transmission method, comprising:
the terminal reports a first report according to the first information, wherein the first report comprises a first power headroom report related to back scattering communication; wherein the terminal is a terminal that transmits a signal to a backscatter communication device in a backscatter communication system.
2. The method of claim 1, wherein the first report further comprises a second power headroom report for an uplink channel.
3. The method according to claim 1 or 2, wherein the first information comprises at least one of:
a triggering condition for the first report;
configuration information of the first report.
4. A method according to claim 3, wherein the triggering condition of the first report relates to at least one of:
first indication information of network side equipment;
the terminal sends a first signal to the first device; wherein the first device is a backscatter communications device;
the power margin of the terminal changes;
counting the round, wherein the counting round is the interval time for the terminal to send the counting command;
feedback information of the first device to the first signal.
5. The method of claim 4, wherein the first indication information of the network side device is used to indicate at least one of:
triggering the network state information of the first report;
triggering the first report and triggering other power headroom reports of a serving cell except the first power headroom report at the same time;
and the power adjustment information of the terminal.
6. The method of claim 5, wherein the network status information triggering the first report comprises at least one of:
activating a secondary cell;
secondary cell deactivation;
adding a primary cell and a secondary cell;
BWP switching.
7. The method of claim 4, wherein the triggering condition of the first report related to the first signal sent by the terminal to the first device comprises at least one of:
triggering in a first time interval before transmitting the first signal;
triggering in a second time interval after transmitting the first signal;
triggering when receiving second indication information from the network side equipment, wherein the second indication information comprises an indication that the terminal sends the first signal.
8. The method of claim 4, wherein the power headroom variation of the terminal is determined by the uplink transmit power of the terminal; wherein, the uplink transmitting power of the terminal is determined by at least one of the following:
Pre-defined or pre-configured uplink transmit power;
receiving third indication information from the network side equipment, wherein the third indication information is used for adjusting at least one of the following:
the uplink transmission power of the terminal;
the terminal is configured to transmit a maximum uplink transmit power for the backscatter communication.
9. The method of claim 4, wherein the triggering condition of the first report related to the inventory round comprises at least one of:
triggering at the beginning or end of every N inventory rounds;
triggering when the target command of the checking round is completed;
wherein N is a positive integer.
10. The method of claim 4, wherein the triggering condition of the first report related to feedback information of the first signal by the first device comprises at least one of:
triggering upon receiving feedback information for the first signal from the first device;
and receiving fourth indication information from the network side equipment, wherein the fourth indication information is sent by the network side equipment after receiving feedback information of the first signal from the first equipment.
11. The method of claim 10, wherein feedback information for the first signal is used to instruct the terminal to report the first report.
12. The method of claim 3, wherein the configuration information of the first report comprises:
time-frequency resources of the first report;
the terminal transmits configuration information of a first signal to a first device, wherein the first device is a backscatter communication device.
13. The method of claim 12, wherein the configuration information of the first signal comprises at least one of:
channel information of the first signal;
and generating the first signal.
14. The method of claim 1, wherein the power headroom in the first power headroom report is determined by a first power and a second power of the terminal; the first power is the maximum uplink transmission power of the terminal for transmitting the back-scattering communication, and the second power is the transmission estimated power of the terminal for the back-scattering communication.
15. The method of claim 14, wherein the power headroom PH (i) in the first power headroom report is determined by the following equation:
PH(i)＝P CMAX_BSC -P BSC (i)
wherein P is CMAX_BSC For the first power, P BSC (i) For the second power, the i is used to indicate a transmission opportunity.
16. The method of claim 4, 10 or 12, wherein the first signal is at least one of:
a carrier signal;
a control signal.
17. The method of claim 2, wherein the second power headroom report is at least one of:
a power headroom report for the physical uplink shared channel;
power headroom reporting for sounding reference signals.
18. A power headroom report transmission device, comprising:
the triggering module is used for determining to trigger reporting of the first report according to the first information;
a sending module, configured to report the first report, where the first report includes a first power headroom report related to backscatter communication; the power headroom report transmission device is a terminal for transmitting signals to a backscatter communication device in a backscatter communication system.
19. A power headroom report transmission method, comprising:
the network side equipment receives a first report from a terminal, wherein the first report comprises a first power headroom report related to back-scattering communication, and the terminal is used for transmitting signals to the back-scattering communication equipment in a back-scattering communication system.
20. The method of claim 19, wherein the first report further comprises a second power headroom report for an uplink channel.
21. The method according to claim 18 or 19, wherein the first report is triggered according to first information comprising at least one of:
a triggering condition for the first report;
configuration information of the first report.
22. The method of claim 21, wherein the triggering condition of the first report relates to at least one of:
the first indication information of the network side equipment;
the terminal sends a first signal to the first device; wherein the first device is a backscatter communications device;
the power margin of the terminal changes;
counting the round, wherein the counting round is the interval time for the terminal to send the counting command;
feedback information of the first device to the first signal.
23. The method of claim 22, wherein the first indication information of the network side device is used to indicate at least one of:
triggering the network state information of the first report;
triggering the first report and triggering other power headroom reports of a serving cell except the first power headroom report at the same time;
And the power adjustment information of the terminal.
24. The method of claim 23, wherein the network status information triggering the first report comprises at least one of:
activating a secondary cell;
secondary cell deactivation;
adding a primary cell and a secondary cell;
BWP switching.
25. The method of claim 22, wherein the triggering condition of the first report related to the first signal sent by the terminal to the first device comprises at least one of:
triggering in a first time interval before transmitting the first signal;
triggering in a second time interval after transmitting the first signal;
triggering when receiving second indication information from the network side equipment, wherein the second indication information comprises an indication that the terminal sends the first signal.
26. The method of claim 22, wherein the variation of the power headroom of the terminal is determined by the uplink transmit power of the terminal; wherein, the uplink transmitting power of the terminal is determined by at least one of the following:
pre-defined or pre-configured uplink transmit power;
receiving third indication information from the network side equipment, wherein the third indication information is used for adjusting at least one of the following:
The uplink transmission power of the terminal;
the terminal is configured to transmit a maximum uplink transmit power for the backscatter communication.
27. The method of claim 22, wherein the triggering condition of the first report related to the inventory round comprises at least one of:
triggering at the beginning or end of every N inventory rounds;
triggering when the target command of the checking round is completed;
wherein N is a positive integer.
28. The method of claim 22, wherein the triggering condition of the first report related to feedback information of the first signal by the first device comprises at least one of:
triggering upon receiving feedback information for the first signal from the first device;
and receiving fourth indication information from the network side equipment, wherein the fourth indication information is sent by the network side equipment after receiving feedback information of the first signal from the first equipment.
29. The method of claim 28, wherein feedback information for the first signal is used to instruct the terminal to report the first report.
30. The method of claim 21, wherein the configuration information of the first report comprises:
Time-frequency resources of the first report;
the terminal transmits configuration information of a first signal to a first device, wherein the first device is a backscatter communication device.
31. The method of claim 30, wherein the configuration information of the first signal comprises at least one of:
channel information of the first signal;
and generating the first signal.
32. The method of claim 19, wherein the power headroom in the first power headroom report is determined by a first power and a second power of the terminal; the first power is the maximum uplink transmission power of the terminal for transmitting the back-scattering communication, and the second power is the transmission estimated power of the terminal for the back-scattering communication.
33. The method of claim 21, wherein the power headroom PH (i) in the first power headroom report is determined by the following equation:
PH(i)＝P CMAX_BSC -P BSC (i)
wherein P is CMAX_BSC For the first power, P BSC (i) For the second power, the i is used to indicate a transmission opportunity.
34. The method of claim 22, 28 or 30, wherein the first signal is at least one of:
A carrier signal;
a control signal.
35. The method of claim 20, wherein the second power headroom report is at least one of:
a power headroom report for the physical uplink shared channel;
power headroom reporting for sounding reference signals.
36. A power headroom report transmission device, comprising:
a receiving module for receiving a first report from a terminal;
the analysis module is used for analyzing the first report;
wherein the first report includes a first power headroom report related to backscatter communication, and the terminal is a terminal that transmits a signal to a backscatter communication device in a backscatter communication system.
37. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the power headroom report transmission method of any of claims 1 to 17.
38. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the power headroom report transmission method of any of claims 19 to 35.
39. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implements the power headroom report transmission method of any of claims 1 to 17, or the steps of the power headroom report transmission method of any of claims 19 to 35.
CN202210422228.4A 2022-04-21 2022-04-21 Power headroom report transmission method, device, terminal and network side equipment Pending CN116980882A (en)

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CN202210422228.4A CN116980882A (en) 2022-04-21 2022-04-21 Power headroom report transmission method, device, terminal and network side equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210422228.4A CN116980882A (en) 2022-04-21 2022-04-21 Power headroom report transmission method, device, terminal and network side equipment

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CN116980882A true CN116980882A (en) 2023-10-31

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