WO2022236681A1 - 通信方法及装置 - Google Patents
通信方法及装置 Download PDFInfo
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- WO2022236681A1 WO2022236681A1 PCT/CN2021/093068 CN2021093068W WO2022236681A1 WO 2022236681 A1 WO2022236681 A1 WO 2022236681A1 CN 2021093068 W CN2021093068 W CN 2021093068W WO 2022236681 A1 WO2022236681 A1 WO 2022236681A1
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- Prior art keywords
- power headroom
- headroom report
- uplink
- data
- transmitted
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- 238000004891 communication Methods 0.000 title claims abstract description 82
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/365—Power headroom reporting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
Definitions
- the present application relates to the technical field of communication, and in particular to a communication method and device.
- PHR Power Headroom Reporting
- the PHR will report the difference between the estimated uplink transmission power and the maximum transmission power of the terminal device to the network device, so as to help the network device perform power control and uplink scheduling on the terminal device.
- the PHR MAC CE will take precedence over the data transmission .
- the process of small data transmission requires the terminal device to remain in an inactive state to complete data transmission, so that the terminal device needs to complete the transmission of a small amount of data within a period of time. Since the PHR MAC CE transmission needs to occupy part of the data transmission resources, it will require more uplink scheduling to complete the upload of all the data to be transmitted.
- the embodiment of the present application provides a communication method and device to solve the problem in the prior art that requires more uplink scheduling to complete all the data to be transmitted due to the occupation of part of the data transmission resources by the media intervention control unit of the power headroom report upload problem.
- the first aspect of the present application provides a communication method, the method comprising:
- the terminal device triggers a power headroom report during small data transmission
- the terminal device determines whether the power headroom report is included in the first uplink data according to the amount of data to be transmitted and the first uplink resource, where the first uplink resource is used to transmit the first uplink data.
- the first uplink data does not include the power headroom report.
- the method also includes:
- the terminal device cancels all triggered power headroom reports.
- the first uplink data includes the power headroom report.
- the method also includes:
- a media intervention control unit for generating and transmitting the power headroom report by the terminal device.
- the medium access control unit of the power headroom report is a single medium access control unit or a multiple medium access control unit or a medium access control unit introduced by the small data transmission unit.
- the first uplink data further includes a medium access control packet data unit formed based on the small data transmission, and the medium access control packet data unit includes the transmitted data.
- the small data transmission includes small data transmission based on random access or small data transmission based on preconfigured resources.
- the triggering conditions of the power headroom report include at least one of the following: the reporting time timer expires and the amount of path change exceeds a threshold compared with the previous transmitted power headroom report;
- the report timer expires, the upper layer configures or reconfigures the power headroom report and is not used to indicate that the power headroom report function is disabled, there is currently no triggered power headroom report, and the capacity of the current uplink resource is less than the amount of data to be transmitted.
- the first uplink resource includes at least one of the following: an uplink grant scheduled through a random access response, a physical uplink shared channel resource used to transmit a two-step random access payload, and a network
- the uplink resources configured by the device through dynamic scheduling, and the pre-configured semi-static resources.
- the terminal device is not limited or does not perform dynamic power sharing configuration when calculating the power headroom report .
- the method also includes:
- the terminal device sends the first uplink data by using the first uplink resource.
- a second aspect of the present application provides a communication method, the method comprising:
- the network device receives the first uplink data transmitted through the first uplink resource during small data transmission, whether the first uplink data includes a power headroom report is determined by the first uplink resource and the amount of data to be transmitted of the terminal device Sure.
- the first uplink data does not include the power headroom report.
- the first uplink data includes the power headroom report.
- the medium access control unit of the power headroom report is a single medium access control unit or a multiple medium access control unit or a medium access control unit introduced by the small data transmission unit.
- the first uplink data further includes a medium access control packet data unit formed based on the small data transmission, and the medium access control packet data unit includes the transmitted data.
- the small data transmission includes small data transmission based on random access or small data transmission based on preconfigured resources.
- the triggering conditions of the power headroom report include at least one of the following: the reporting time timer expires and the amount of path change exceeds a threshold compared with the previous transmitted power headroom report;
- the report timer expires, the upper layer configures or reconfigures the power headroom report and is not used to indicate that the power headroom report function is disabled, there is currently no triggered power headroom report, and the capacity of the current uplink resource is less than the amount of data to be transmitted.
- the first uplink resource includes at least one of the following: an uplink grant scheduled through a random access response, a physical uplink shared channel resource used to transmit a two-step random access payload, and a network
- the uplink resources configured by the device through dynamic scheduling, and the pre-configured semi-static resources.
- the terminal device is not limited or does not perform dynamic power sharing configuration when calculating the power headroom report .
- a trigger module configured to trigger a power headroom report during small data transmission
- the first uplink data does not include the power headroom report.
- the processing module is further configured for the communication device to cancel all triggered power headroom reports.
- the first uplink data includes the power headroom report.
- the processing module is also used for a media intervention control unit of the communication device that generates and transmits the power headroom report.
- the small data transmission includes small data transmission based on random access or small data transmission based on preconfigured resources.
- the triggering conditions of the power headroom report include at least one of the following: the reporting time timer expires and the amount of path change exceeds a threshold compared with the previous transmitted power headroom report;
- the report timer expires, the upper layer configures or reconfigures the power headroom report and is not used to indicate that the power headroom report function is disabled, there is currently no triggered power headroom report, and the capacity of the current uplink resource is less than the amount of data to be transmitted.
- the first uplink resource includes at least one of the following: an uplink grant scheduled through a random access response, a physical uplink shared channel resource used to transmit a two-step random access payload, and a network
- the uplink resources configured by the device through dynamic scheduling, and the pre-configured semi-static resources.
- the communication device is not limited or does not perform dynamic power sharing configuration when calculating the power headroom report .
- the device also includes:
- a sending module configured to use the first uplink resource to send the first uplink data.
- a fourth aspect of the present application provides a communication device, the device comprising:
- a receiving module configured to receive first uplink data transmitted through the first uplink resource during small data transmission, whether the first uplink data includes a power headroom report is to be transmitted through the first uplink resource and the terminal device The amount of data is determined;
- the first uplink data does not include the power headroom report.
- the medium access control unit of the power headroom report is a single medium access control unit or a multiple medium access control unit or a medium access control unit introduced by the small data transmission unit.
- the first uplink data further includes a medium access control packet data unit formed based on the small data transmission, and the medium access control packet data unit includes the transmitted data.
- the small data transmission includes small data transmission based on random access or small data transmission based on preconfigured resources.
- the triggering conditions of the power headroom report include at least one of the following: the reporting time timer expires and the amount of path change exceeds a threshold compared with the previous transmitted power headroom report;
- the report timer expires, the upper layer configures or reconfigures the power headroom report and is not used to indicate that the power headroom report function is disabled, there is currently no triggered power headroom report, and the capacity of the current uplink resource is less than the amount of data to be transmitted.
- the terminal device is not limited or does not perform dynamic power sharing configuration when calculating the power headroom report .
- the fifth aspect of the present application provides a terminal device, including:
- Processors memory, receivers, and interfaces to communicate with network devices;
- the memory stores computer-executable instructions
- the processor executes the computer-executable instructions stored in the memory, so that the processor executes the communication method as described in the first aspect.
- a sixth aspect of the present application provides a network device, which is characterized in that it includes:
- the memory stores computer-executable instructions
- a seventh aspect of the present application provides a chip, including: a processor, configured to invoke and run a computer program from a memory, so that a device installed with the chip executes the method described in the first aspect.
- An eighth aspect of the present application provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method as described in the second aspect.
- a ninth aspect of the present application provides a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute the method as described in the first aspect.
- a tenth aspect of the present application provides a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute the method as described in the first aspect or the second aspect.
- the eleventh aspect of the present application provides a computer program product, including computer instructions.
- the computer instructions are executed by a processor, the method as described in the first aspect is implemented.
- a twelfth aspect of the present application provides a computer program product, including computer instructions, and when the computer instructions are executed by a processor, the method as described in the second aspect is implemented.
- a thirteenth aspect of the present application provides a computer program, the computer program causes a computer to execute the method described in the first aspect.
- the terminal device first triggers a power headroom report when small data is transmitted. Subsequently, the terminal device determines whether the power headroom report is included in the first uplink data according to the amount of data to be transmitted and the first uplink resource, where the first uplink resource is used to transmit the first uplink data. In this way, the terminal device can determine whether the power headroom report is included in the uplink data based on the uplink resource and the data to be transmitted, thereby avoiding the need for more data transmission resources due to the media intervention control unit of the power headroom report occupying part of the data transmission resources.
- the uploading of all data to be transmitted can be completed only after uplink scheduling times.
- Fig. 1 is the schematic flow chart of existing PUR transmission
- FIG. 2 is a schematic diagram of a scenario of a communication method provided by an embodiment of the present application.
- FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application.
- FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
- FIG. 6 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
- FIG. 7 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
- LTE Long Term Evolution
- EDT early data transmission
- the terminal device may always remain in an idle (idle) state or a suspended (suspend) state or an inactive (inactive) state to complete the transmission of uplink and/or downlink small data packets.
- the network device will configure a maximum transport block (Transport Block, TB) size allowed by the current network on the second system information block (System Information Block 2, SIB2), and the terminal device judges the amount of data to be transmitted. If the amount of data to be transmitted is less than the maximum TB size advertised by the network device, the terminal device can initiate an EDT transmission.
- Transport Block Transport Block
- SIB2 System Information Block 2
- the terminal equipment UE uses a normal connection establishment process and enters a connected state to transmit data. If the cell where the terminal device initiates uplink EDT is the same as the last serving cell, the network device can directly submit the uplink data to the core network device after receiving the connection recovery request and uplink data sent by the terminal device.
- Fig. 1 is a schematic flow chart of the existing PUR transmission. As shown in Figure 1, the PUR is only valid in the currently configured cell, that is, when the terminal device detects a cell change and initiates random access in the new cell, the terminal device needs to release the PUR configured in the original cell. Compared with LTE UP-EDT, the PUR transmission process saves the process of sending the preamble to obtain the timing advance (time advance, TA) and uplink grant (UL grant).
- time advance time advance
- UL grant uplink grant
- the process of the PHR is to report the difference between the estimated uplink transmission power and the maximum transmission power of the terminal equipment to the network equipment, so as to help the network equipment perform power control and uplink scheduling on the terminal equipment.
- the PHR can be determined by subtracting the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) transmission power from the maximum transmission power of the terminal equipment, or by subtracting the PUSCH transmission power and the physical uplink control channel (Physical Uplink Control Channel) from the maximum transmission power of the terminal equipment. Control Channel, PUCCH) this and OK.
- PUSCH Physical Uplink Shared Channel
- PUCCH Physical Uplink Control Channel
- the trigger conditions of the existing PHR may include at least one of the following: the reporting time timer (phr-ProhibitTimer) expires and the path change exceeds the threshold (phr-Tx-PowerFactorChange dB) compared with the PHR of the previous transmission, periodic reporting The timer (phr-PeriodicTimer) expires, the upper layer configures or reconfigures the power headroom report and is not used to indicate the disabling of the power headroom report function, adding or changing the primary secondary cell (Primary Secondary Cell, PSCell), activating the secondary cell of any MAC entity
- the cell (Secondary Cell, SCell) and the first active downlink bandwidth identifier (firstActiveDownlinkBWP-Id) of the configured uplink of the MAC entity is the dormant bandwidth part (Bandwidth Part).
- the network device allocates uplink resources for the terminal device for new data transmission, and the PHR is triggered at this time, and the allocated resources are sufficient to carry the corresponding MAC CE of the PHR. Then the MAC layer obtains the power headroom information from the physical layer, and assembles the PHR MAC CE into a MAC packet data unit (Packet Data Unit, PDU) to report the PHR.
- PDU Packet Data Unit
- the terminal device reports the PHR of a single cell.
- the terminal device will report the PHR of all active cells of the terminal device, including the cells on the Master Cell Group (MCG) side and the secondary cells Cells on the side of the group (Secondary Cell Group, SCG).
- MCG Master Cell Group
- SCG Secondary Cell Group
- the radio resource control (Radio Resource Control, RRC) states are: RRC idle state, RRC inactive state and RRC connected state.
- the RRC inactive state is a new state introduced by the 5G system from the perspective of energy saving.
- the radio bearer and all radio resources will be released, but the terminal device side and the network device side retain the terminal device access context. , so as to quickly restore the RRC connection.
- a network device usually keeps a terminal device with infrequent data transmission in an RRC inactive state. Before Rel-16, the terminal device in the RRC inactive state does not support data transmission.
- Rel-17 set up a project to carry out research on Small Data Transmission (SDT) (same meaning as EDT) in RRC inactive state, so as to realize uplink small data based on random access process (two-step/four-step) transmission and uplink small data transmission based on pre-configured resources.
- SDT Small Data Transmission
- the PHR is reported to the network in the form of MAC CE.
- the priority of PHR MAC CE is higher than that of DTCH.
- the PHR MAC CE will take precedence over data transmission. SDT requires the terminal equipment to remain in the RRC inactive state to complete data transmission, so that the terminal equipment needs to complete the transmission of a small amount of data within a period of time. Since the PHR MAC CE transmission needs to occupy part of the data transmission resources, it will require more uplink scheduling to complete the transmission of all uplink data.
- the embodiments of the present application provide a communication method and device.
- a terminal device can determine whether the uplink data includes a power headroom report based on uplink resources and data to be transmitted. , to avoid unnecessary power headroom reports in some cases, thereby avoiding the need for more uplink scheduling to complete the upload of all data to be transmitted due to the media intervention control unit of the power headroom report occupying part of the data transmission resources .
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- FDD Frequency Division Duplex
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- LTE-A advanced long-term Evolution
- New Radio, NR evolution system of NR system
- LTE LTE-based access to unlicensed spectrum, LTE-U
- NR Universal Mobile Telecommunications System
- UMTS Universal Mobile Telecommunications System
- WiMAX Worldwide Interoperability for Microwave Access
- FIG. 2 is a schematic diagram of a scenario of a communication method provided by an embodiment of the present application.
- the terminal device 101 triggers a power headroom report when transmitting small data, and after acquiring the first uplink resource, the terminal device 101 may determine whether the first uplink data includes the power headroom report. Subsequently, the terminal device 101 generates the first uplink data, and sends the first uplink data to the network device 102 by using the first uplink resource.
- mobile terminal 11 includes but not limited to satellite or cellular phone, can combine the personal communication system (Personal Communications System, PCS) terminal of cellular radiotelephone and data processing, facsimile and data communication capability; Can include radiotelephone, pager, Internet/ PDAs with intranet access, web browsers, organizers, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices.
- PCS Personal Communications System
- PCS Personal Communications System
- GPS Global Positioning System
- the terminal equipment may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or user device.
- the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolved PLMNs, etc.
- SIP Session Initiation Protocol
- WLL Wireless Local Loop
- PDA Personal Digital Assistant
- the network device 12 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area.
- the network device 102 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, may also be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (Cloud Radio Access Network, CRAN), or the network device can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network devices in the 5G network or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.
- BTS Base Transceiver Station
- NodeB, NB base station
- LTE Long Term Evolutional Node B, eNB or eNodeB
- CRAN Cloud
- FIG. 3 is a signaling interaction diagram of a communication method provided by an embodiment of the present application.
- the subject of execution of the embodiment of the present application is a terminal device and a network device, and involves a specific process of how the terminal device determines the content contained in the first uplink data.
- the method includes:
- the terminal device triggers a power headroom report when small data is transmitted.
- the small data transmission means that the terminal device remains in an idle state or a suspended state or an inactive state to complete the transmission of uplink and/or downlink small data packets.
- the amount of data transmitted by the terminal device needs to be smaller than the maximum TB size broadcast by the network device.
- the embodiment of the present application does not limit the type of small data transmission, for example, it may include small data transmission based on random access (RA-SDT) or small data transmission based on pre-configured resources (CG-SDT) .
- R-SDT random access
- CG-SDT pre-configured resources
- the triggering conditions of the power headroom report include at least one of the following: the reporting time timer expires and the power headroom report of the previous transmission The path change exceeds the threshold, the periodic reporting timer expires, the upper layer configures or reconfigures the power headroom report and is not used to indicate that the power headroom report function is disabled, there is currently no triggered power headroom report, and the capacity of the current uplink resource is less than the pending The amount of data transferred.
- the power headroom report may be triggered by one of the above trigger conditions, or the power headroom report may be triggered by the above-mentioned multiple conditions, which is not limited in the embodiment of the present application
- the embodiment of the present application does not limit the reporting time timer and the periodic reporting timer.
- the reporting time timer may be phr-ProhibitTimer
- the periodic reporting timer may be phr-PeriodicTimer.
- the threshold of the path change amount there is no limitation on the threshold of the path change amount, which can be set according to the actual situation.
- the threshold value of the path change amount can be phr-Tx-PowerFactorChange dB.
- the terminal device determines whether the first uplink data includes a power headroom report according to the amount of data to be transmitted and the first uplink resource.
- the terminal device can first obtain the first uplink resource, and then determine whether the first uplink data contains Contains power headroom reports.
- the first uplink resource includes at least one of the following: an uplink grant (UL grant) scheduled through a random access response (Random Access Response, RAR), a payload (payload) for transmitting a two-step random access (MsgA) ) physical uplink shared channel resources, uplink resources configured by network equipment through dynamic scheduling, and pre-configured semi-static resources.
- UL grant uplink grant
- RAR random access response
- MsgA two-step random access
- the first uplink resource is used to transmit the first uplink data
- the first uplink data is the data transmitted by the terminal device to the network device during the small data transmission process
- the transmission of the first uplink data may be the current small data transmission process.
- the first data transmission may also be data transmission after the first transmission in the small data transmission process, that is, subsequent (subsequent) transmission, which is not limited in this embodiment of the present application.
- the terminal device may determine whether the content contained in the first uplink data includes a power headroom report.
- the embodiment of the present application does not limit how to determine whether the first uplink data includes a power headroom report.
- the terminal device can determine whether the power headroom report is necessary to determine whether the first uplink data Whether to include the power headroom report in .
- the terminal device if the capacity of the first uplink resource is greater than or equal to the amount of data to be transmitted, the terminal device does not need to report the power headroom, then the first uplink resource can accommodate all the data to be transmitted, and the first uplink data may not contain Contains power headroom reports.
- the terminal device can cancel all triggered power headroom reports, construct a MAC PDU according to the existing link control protocol (Link Control Protocol, LCP) process, and then send the first uplink data to the network device through the first uplink resource .
- Link Control Protocol LCP
- the terminal device needs to perform a power headroom report.
- the capacity of the first uplink resource is greater than or equal to the sum of the media access control unit and the subpacket header of the power headroom report, then the first uplink data includes the power headroom report.
- the terminal device generates the media intervention control unit of the power headroom report, and constructs the MAC PDU according to the existing LCP process. Subsequently, the terminal device sends the media intervention control unit and the MAC PDU of the power headroom report to the network device as the first uplink data.
- the power headroom report is carried in the media intervention control unit of the power headroom report.
- the embodiment of the present application does not limit the type of the media access control unit of the power headroom report.
- the media access control unit of the power headroom report may be a single (Single Entry) media access control unit or a multiple ( Multiple Entry) medium access control unit or medium access control unit introduced by small data transmission.
- the MAC PDU can be constructed according to the existing LCP process based on the small data transmission process, and the MAC PDU can include the data to be transmitted.
- the terminal device if the terminal device is configured with dual link or aggregated wave carrier, the terminal device is not limited or does not perform dynamic power sharing configuration when calculating the power headroom report, and considers that the maximum transmission of the terminal device is All power is used for data transmission of the Master Cell Group (MCG) terminated at the Master Node (MN).
- MCG Master Cell Group
- MN Master Node
- the power used for data transmission of the primary cell is B
- the power of the remaining A-B is used for data transmission of other cells.
- the PHR calculation during the SDT process may not be limited or not perform dynamic power sharing configuration, so that the terminal device can use greater uplink power for data transmission , thereby improving the reliability of data transmission.
- the terminal device sends the first uplink data to the network device by using the first uplink resource.
- the embodiment of the present application does not limit how to use the first uplink resource to transmit the first uplink data, and a common uplink data transmission scheme may be used.
- the terminal device first triggers the power headroom report when small data is transmitted. Subsequently, the terminal device determines whether the power headroom report is included in the first uplink data according to the amount of data to be transmitted and the first uplink resource, where the first uplink resource is used to transmit the first uplink data. In this way, the terminal device can determine whether the power headroom report is included in the uplink data based on the uplink resource and the data to be transmitted, thereby avoiding the need for more data transmission resources due to the media intervention control unit of the power headroom report occupying part of the data transmission resources.
- the uploading of all data to be transmitted can be completed only after uplink scheduling times.
- FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 4, the execution subject is a terminal device, and the method includes:
- the terminal device performs small data transmission.
- the small data transmission includes small data transmission based on random access or small data transmission based on preconfigured resources.
- the terminal device triggers a power headroom report according to a first trigger condition.
- the trigger condition of the power headroom report includes at least one of the following: the reporting time timer expires and the path variation exceeds the threshold compared with the previous transmitted power headroom report, the periodic report timer expires, upper layer configuration or reconfiguration
- the power headroom report is not used to indicate that the power headroom report function is disabled, there is currently no triggered power headroom report, and the capacity of the current uplink resource is less than the amount of data to be transmitted.
- the terminal device acquires the first uplink resource.
- the first uplink resource is used to transmit the first uplink data
- the first uplink data is the data that the terminal device transmits to the network device during the small data transmission process
- the transmission of the first uplink data may be the current small data transmission process.
- a data transmission may also be a data transmission after the first transmission in the small data transmission process, that is, a subsequent (subsequent) transmission, which is not limited in this embodiment of the present application.
- the first uplink resource includes at least one of the following: an uplink grant scheduled through a random access response, an Physical uplink shared channel resources, uplink resources configured by network equipment through dynamic scheduling, and pre-configured semi-static resources.
- the terminal device judges whether the first uplink data includes a power headroom report.
- step S305 If yes, execute step S305; if not, execute step S307.
- the embodiment of the present application does not limit how to determine whether the first uplink data includes a power headroom report.
- the first uplink data contains Power headroom reporting is not included.
- the capacity of the first uplink resource is less than the amount of data to be transmitted and the capacity of the first uplink resource is greater than or equal to the sum of the media intervention control unit and the sub-packet header of the power headroom report, the first uplink data Contains power headroom reports.
- the terminal device cancels all triggered power headroom reports.
- the terminal device constructs a MAC PDU according to the existing LCP process, and the MAC PDU includes data with transmission.
- the media access control unit of the terminal device generates a power headroom report, and constructs a MAC PDU according to the existing LCP process.
- S301-S307 can be understood with reference to S201-S203 shown in FIG. 3 , and repeated content will not be repeated here.
- the terminal device first triggers the power headroom report when small data is transmitted. Subsequently, the terminal device determines whether the power headroom report is included in the first uplink data according to the amount of data to be transmitted and the first uplink resource, where the first uplink resource is used to transmit the first uplink data. In this way, the terminal device can determine whether the power headroom report is included in the uplink data based on the uplink resource and the data to be transmitted, thereby avoiding the need for more data transmission resources due to the media intervention control unit of the power headroom report occupying part of the data transmission resources.
- the uploading of all data to be transmitted can be completed only after uplink scheduling times.
- the aforementioned program can be stored in a computer-readable storage medium.
- the program When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.
- FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
- the communication apparatus may be implemented by software, hardware or a combination of the two, so as to execute the communication method on the terminal device side in the foregoing embodiments.
- the communication device 400 includes:
- a trigger module 401 configured to trigger a power headroom report during small data transmission
- the processing module 402 is configured to determine whether the power headroom report is included in the first uplink data according to the amount of data to be transmitted and the first uplink resource used for transmitting the first uplink data.
- the first uplink data does not include the power headroom report.
- the processing module 402 is further used for the communication device to cancel all triggered power headroom reports.
- the first The uplink data includes a power headroom report.
- the processing module 402 is also used in a media intervention control unit of the communication device that generates and transmits a power headroom report.
- the medium access control unit of the power headroom report is a single medium access control unit, a multiple medium access control unit, or a medium access control unit introduced by small data transmission.
- the first uplink data further includes a medium access control packet data unit formed based on small data transmission, and the medium access control packet data unit includes data to be transmitted.
- the small data transmission includes small data transmission based on random access or small data transmission based on preconfigured resources.
- the triggering conditions of the power headroom report include at least one of the following: the reporting time timer expires and the path change amount exceeds the threshold compared with the previous transmitted power headroom report; timeout, the upper layer configures or reconfigures the power headroom report and is not used to indicate that the power headroom report function is disabled, there is currently no triggered power headroom report, and the capacity of the current uplink resource is less than the amount of data to be transmitted.
- the first uplink resource includes at least one of the following: an uplink grant scheduled through a random access response, a physical uplink shared channel resource used to transmit a two-step random access payload, and a network device through Dynamically scheduled and configured uplink resources and pre-configured semi-static resources.
- the communication device is not limited or does not perform dynamic power sharing configuration when calculating the power headroom report.
- the device also includes:
- the sending module 403 is configured to use the first uplink resource to send the first uplink data.
- the communication device provided in the embodiment of the present application can execute the actions of the communication method on the terminal device side in the above embodiment, and its implementation principle and technical effect are similar, and will not be repeated here.
- FIG. 6 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
- the communication apparatus may be implemented by software, hardware or a combination of the two, so as to execute the communication method on the network device side in the foregoing embodiments.
- the communication device 500 includes:
- the receiving module 501 is configured to receive the first uplink data transmitted through the first uplink resource during the small data transmission, whether the first uplink data includes the power headroom report is the amount of data to be transmitted through the first uplink resource and the terminal device Sure;
- the processing module 502 is configured to process the first uplink data.
- the first The uplink data includes a power headroom report.
- the medium access control unit of the power headroom report is a single medium access control unit, a multiple medium access control unit, or a medium access control unit introduced by small data transmission.
- the first uplink data further includes a medium access control packet data unit formed based on small data transmission, and the medium access control packet data unit includes data to be transmitted.
- the small data transmission includes small data transmission based on random access or small data transmission based on preconfigured resources.
- the triggering conditions of the power headroom report include at least one of the following: the reporting time timer expires and the path change amount exceeds the threshold compared with the previous transmitted power headroom report; timeout, the upper layer configures or reconfigures the power headroom report and is not used to indicate that the power headroom report function is disabled, there is currently no triggered power headroom report, and the capacity of the current uplink resource is less than the amount of data to be transmitted.
- the first uplink resource includes at least one of the following: an uplink grant scheduled through a random access response, a physical uplink shared channel resource used to transmit two-step random access payloads, and a communication device through Dynamically scheduled and configured uplink resources and pre-configured semi-static resources.
- the terminal device is not limited or does not perform dynamic power sharing configuration when calculating the power headroom report.
- FIG. 7 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
- this electronic equipment can comprise: processor 61 (such as CPU), memory 62, receiver 63 and transmitter 64; Receiver 63 and transmitter 64 are coupled to processor 61, and processor 61 controls receiver 63 of the receiving action, the processor 61 controls the sending action of the transmitter 64.
- the memory 62 may include a high-speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, and various information may be stored in the memory 62 for completing various processing functions and implementing the method of the embodiment of the present application step.
- the electronic device involved in this embodiment of the present application may further include: a power supply 65 , a communication bus 66 and a communication port 66 .
- the receiver 63 and the transmitter 64 can be integrated in the transceiver of the electronic device, or can be an independent transceiver antenna on the electronic device.
- the communication bus 66 is used to implement the communication connection between the components.
- the above-mentioned communication port 66 is used to realize connection and communication between the electronic device and other peripheral devices.
- the above-mentioned memory 62 is used to store computer-executable program codes, and the program codes include information; when the processor 61 executes the information, the information causes the processor 61 to execute the processing actions on the terminal device side in the above-mentioned method embodiments,
- the transmitter 64 is made to perform the sending action on the terminal device side in the above method embodiment, and the receiver 63 is made to perform the receiving action on the terminal device side in the above method embodiment.
- the information causes the processor 61 to execute the processing action on the network device side in the above method embodiment, make the transmitter 64 execute the sending action on the network device side in the above method embodiment, and make the receiver 63 execute
- the implementation principles and technical effects of the receiving actions on the network device side in the foregoing method embodiments are similar, and will not be repeated here.
- An embodiment of the present application further provides a communication system, including a terminal device and a network device, so as to implement the foregoing communication method.
- the embodiment of the present application also provides a chip, including a processor and an interface.
- the interface is used to input and output data or instructions processed by the processor.
- the processor is configured to execute the methods provided in the above method embodiments.
- the chip can be applied to terminal equipment or network equipment.
- the present invention also provides a kind of computer-readable storage medium, and this computer-readable storage medium can comprise: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory) ), a magnetic disk or an optical disk, and other media that can store program codes.
- the computer-readable storage medium stores program information, and the program information is used in the above-mentioned communication method.
- the embodiment of the present application also provides a program, which is used to execute the communication method provided in the above method embodiment when executed by a processor.
- the embodiment of the present application also provides a program product, such as a computer-readable storage medium, where instructions are stored in the program product, and when the program product is run on a computer, it causes the computer to execute the communication method provided by the above method embodiment.
- a program product such as a computer-readable storage medium
- a computer program product includes one or more computer instructions.
- a computer can be a general purpose computer, special purpose computer, computer network, or other programmable device.
- Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, computer instructions may be sent from a website, computer, server, or data center via a wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server or data center.
- the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device including a server, a data center, and the like integrated with one or more available media. Available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)).
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Abstract
Description
Claims (46)
- 一种通信方法,其特征在于,包括:终端设备在小数据传输时触发功率余量报告;终端设备根据待传输的数据量和第一上行资源,确定第一上行数据中是否包含所述功率余量报告,所述第一上行资源用于传输所述第一上行数据。
- 根据权利要求1所述的方法,其特征在于,若所述第一上行资源的容量大于或等于所述待传输的数据量,则所述第一上行数据中不包含所述功率余量报告。
- 根据权利要求2所述的方法,其特征在于,所述方法还包括:所述终端设备取消所有已触发的功率余量报告。
- 根据权利要求1所述的方法,其特征在于,若所述第一上行资源的容量小于所述待传输的数据量且所述第一上行资源的容量大于或等于所述功率余量报告的媒体介入控制单元和子包头之和,则所述第一上行数据中包含所述功率余量报告。
- 根据权利要求4所述的方法,其特征在于,所述方法还包括:所述终端设备生成并传输所述功率余量报告的媒体介入控制单元。
- 根据权利要求4或5所述的方法,其特征在于,所述功率余量报告的媒质接入控制单元为单次媒质接入控制单元或多次媒质接入控制单元或所述小数据传输引入的媒质接入控制单元。
- 根据权利要求1-6任一项所述的方法,其特征在于,所述第一上行数据中还包括基于所述小数据传输组建的媒质接入控制分组数据单元,所述媒质接入控制分组数据单元中包含有所述待传输的数据。
- 根据权利要求1-7任一项所述的方法,其特征在于,所述小数据传输包括基于随机接入的小数据传输或基于预配置资源的小数据传输。
- 根据权利要求1-7任一项所述的方法,其特征在于,所述功率余量报告的触发条件包括以下至少一项:上报时间定时器超时且与前一次传输的功率余量报告相比路径变化量超过阈值、周期性上报定时器超时、上层配置或重配置功率余量报告且不用于指示禁用功率余量报告功能、当前无触发的功率余量报告且当前上行资源的容量小于所述待传输的数据量。
- 根据权利要求1-7任一项所述的方法,其特征在于,所述第一上行资源包括以下至少一项:通过随机接入响应调度的上行授权、用于传输两步随机接入有效载荷的物理上行共享信道资源、网络设备通过动态调度配置的上行资源、预配置的半静态资源。
- 根据权利要求1-7任一项所述的方法,其特征在于,若所述终端设备配置有双链接或聚波载合,则所述终端设备在计算所述功率余量报告时不受限于或不执行动态功率共享配置。
- 根据权利要求1-7任一项所述的方法,其特征在于,所述方法还包括:所述终端设备使用所述第一上行资源发送所述第一上行数据。
- 一种通信方法,其特征在于,包括:网络设备接收在小数据传输时通过第一上行资源传输的第一上行数据,所述第一上行数据中是否包含功率余量报告是通过所述第一上行资源和终端设备的待传输的数据量确定。
- 根据权利要求13所述的方法,其特征在于,若所述第一上行资源的容量大于或等于所述待传输的数据量,则所述第一上行数据中不包含所述功率余量报告。
- 根据权利要求13所述的方法,其特征在于,若所述第一上行资源的容量小于所述待传输的数据量且所述第一上行资源的容量大于或等于所述功率余量报告的媒体介入控 制单元和子包头之和,则所述第一上行数据中包含所述功率余量报告。
- 根据权利要求15所述的方法,其特征在于,所述功率余量报告的媒质接入控制单元为单次媒质接入控制单元或多次媒质接入控制单元或所述小数据传输引入的媒质接入控制单元。
- 根据权利要求13-16任一项所述的方法,其特征在于,所述第一上行数据中还包括基于所述小数据传输组建的媒质接入控制分组数据单元,所述媒质接入控制分组数据单元中包含有所述待传输的数据。
- 根据权利要求13-17任一项所述的方法,其特征在于,所述小数据传输包括基于随机接入的小数据传输或基于预配置资源的小数据传输。
- 根据权利要求13-17任一项所述的方法,其特征在于,所述功率余量报告的触发条件包括以下至少一项:上报时间定时器超时且与前一次传输的功率余量报告相比路径变化量超过阈值、周期性上报定时器超时、上层配置或重配置功率余量报告且不用于指示禁用功率余量报告功能、当前无触发的功率余量报告且当前上行资源的容量小于待传输的数据量。
- 根据权利要求13-17任一项所述的方法,其特征在于,所述第一上行资源包括以下至少一项:通过随机接入响应调度的上行授权、用于传输两步随机接入有效载荷的物理上行共享信道资源、网络设备通过动态调度配置的上行资源、预配置的半静态资源。
- 根据权利要求13-17任一项所述的方法,其特征在于,若所述终端设备配置有双链接或聚波载合,则所述终端设备在计算所述功率余量报告时不受限于或不执行动态功率共享配置。
- 一种通信装置,其特征在于,包括:触发模块,用于在小数据传输时触发功率余量报告;处理模块,用于根据待传输的数据量和第一上行资源,确定第一上行数据中是否包含所述功率余量报告,所述第一上行资源用于传输所述第一上行数据。
- 根据权利要求22所述的装置,其特征在于,若所述第一上行资源的容量大于或等于所述待传输的数据量,则所述第一上行数据中不包含所述功率余量报告。
- 根据权利要求23所述的装置,其特征在于,所述处理模块,还用于所述通信装置取消所有已触发的功率余量报告。
- 根据权利要求22所述的装置,其特征在于,若所述第一上行资源的容量小于所述待传输的数据量且所述第一上行资源的容量大于或等于所述功率余量报告的媒体介入控制单元和子包头之和,则所述第一上行数据中包含所述功率余量报告。
- 根据权利要求25所述的装置,其特征在于,所述处理模块,还用于所述通信装置生成并传输所述功率余量报告的媒体介入控制单元。
- 根据权利要求25或26所述的装置,其特征在于,所述功率余量报告的媒质接入控制单元为单次媒质接入控制单元或多次媒质接入控制单元或所述小数据传输引入的媒质接入控制单元。
- 根据权利要求22-27任一项所述的装置,其特征在于,所述第一上行数据中还包括基于所述小数据传输组建的媒质接入控制分组数据单元,所述媒质接入控制分组数据单元中包含有所述待传输的数据。
- 根据权利要求22-28任一项所述的装置,其特征在于,所述小数据传输包括基于随机接入的小数据传输或基于预配置资源的小数据传输。
- 根据权利要求22-28任一项所述的装置,其特征在于,所述功率余量报告的触发条件包括以下至少一项:上报时间定时器超时且与前一次传输的功率余量报告相比路径变化量超过阈值、周期性上报定时器超时、上层配置或重配置功率余量报告且不用于指示禁用功率余量报告功能、当前无触发的功率余量报告且当前上行资源的容量小于所述待传输 的数据量。
- 根据权利要求22-28任一项所述的装置,其特征在于,所述第一上行资源包括以下至少一项:通过随机接入响应调度的上行授权、用于传输两步随机接入有效载荷的物理上行共享信道资源、网络设备通过动态调度配置的上行资源、预配置的半静态资源。
- 根据权利要求22-28任一项所述的装置,其特征在于,若所述通信装置配置有双链接或聚波载合,则所述通信装置在计算所述功率余量报告时不受限于或不执行动态功率共享配置。
- 根据权利要求22-28任一项所述的装置,其特征在于,所述装置还包括:发送模块,用于使用所述第一上行资源发送所述第一上行数据。
- 一种通信装置,其特征在于,包括:接收模块,用于接收在小数据传输时通过第一上行资源传输的第一上行数据,所述第一上行数据中是否包含功率余量报告是通过所述第一上行资源和终端设备的待传输的数据量确定;处理模块,用于处理所述第一上行数据。
- 根据权利要求34所述的装置,其特征在于,若所述第一上行资源的容量大于或等于所述待传输的数据量,则所述第一上行数据中不包含所述功率余量报告。
- 根据权利要求34所述的装置,其特征在于,若所述第一上行资源的容量小于所述待传输的数据量且所述第一上行资源的容量大于或等于所述功率余量报告的媒体介入控制单元和子包头之和,则所述第一上行数据中包含所述功率余量报告。
- 根据权利要求36所述的装置,其特征在于,所述功率余量报告的媒质接入控制单元为单次媒质接入控制单元或多次媒质接入控制单元或所述小数据传输引入的媒质接入控制单元。
- 根据权利要求34-37任一项所述的装置,其特征在于,所述第一上行数据中还包括基于所述小数据传输组建的媒质接入控制分组数据单元,所述媒质接入控制分组数据单元中包含有所述待传输的数据。
- 根据权利要求34-38任一项所述的装置,其特征在于,所述小数据传输包括基于随机接入的小数据传输或基于预配置资源的小数据传输。
- 根据权利要求34-38任一项所述的装置,其特征在于,所述功率余量报告的触发条件包括以下至少一项:上报时间定时器超时且与前一次传输的功率余量报告相比路径变化量超过阈值、周期性上报定时器超时、上层配置或重配置功率余量报告且不用于指示禁用功率余量报告功能、当前无触发的功率余量报告且当前上行资源的容量小于待传输的数据量。
- 根据权利要求34-38任一项所述的装置,其特征在于,所述第一上行资源包括以下至少一项:通过随机接入响应调度的上行授权、用于传输两步随机接入有效载荷的物理上行共享信道资源、通信装置通过动态调度配置的上行资源、预配置的半静态资源。
- 根据权利要求34-38任一项所述的装置,其特征在于,若所述终端设备配置有双链接或聚波载合,则所述终端设备在计算所述功率余量报告时不受限于或不执行动态功率共享配置。
- 一种终端设备,其特征在于,包括:处理器、存储器、接收器以及与网络设备进行通信的接口;所述存储器存储计算机执行指令;所述处理器执行所述存储器存储的计算机执行指令,使得所述处理器执行如权利要求1至12中任一项所述的通信方法。
- 一种网络设备,其特征在于,包括:处理器、存储器、发送器以及与终端设备进行通信的接口;所述存储器存储计算机执行指令;所述处理器执行所述存储器存储的计算机执行指令,使得所述处理器执行如权利要求13至21任一项所述的通信方法。
- 一种计算机程序产品,包括计算机指令,其特征在于,该计算机指令被处理器执行时实现权利要求1-21任一项所述的通信方法。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储有计算机执行指令,当所述计算机执行指令被处理器执行时用于实现如权利要求1至21任一项所述的通信方法。
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