WO2021168651A1 - 媒体接入控制层控制单元生效时间的确定方法及相关产品 - Google Patents

媒体接入控制层控制单元生效时间的确定方法及相关产品 Download PDF

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Publication number
WO2021168651A1
WO2021168651A1 PCT/CN2020/076603 CN2020076603W WO2021168651A1 WO 2021168651 A1 WO2021168651 A1 WO 2021168651A1 CN 2020076603 W CN2020076603 W CN 2020076603W WO 2021168651 A1 WO2021168651 A1 WO 2021168651A1
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Prior art keywords
terminal device
mac
parameter
network device
network
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PCT/CN2020/076603
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English (en)
French (fr)
Inventor
李海涛
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Oppo广东移动通信有限公司
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Priority to CN202080086402.1A priority Critical patent/CN114788362B/zh
Priority to PCT/CN2020/076603 priority patent/WO2021168651A1/zh
Publication of WO2021168651A1 publication Critical patent/WO2021168651A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • the present invention relates to the field of communication technology, in particular to a method for determining the effective time of a media access control layer control unit and related products.
  • Non-Terrestrial Network (NTN) technology generally uses satellite communication to provide communication services to ground users.
  • satellite communication has many unique advantages.
  • general terrestrial communication cannot cover the ocean, mountains, deserts and other areas where communication equipment cannot be installed or because of the sparse population. Satellites can cover a larger ground, and satellites can orbit the earth, so theoretically every corner of the earth can be covered by satellite communications.
  • satellite communication has greater social value. Satellite communication can be covered at a lower cost in remote mountainous areas, poor and backward countries or regions, so that people in these areas can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital gap with developed areas and promoting The development of these areas.
  • Third, the satellite communication distance is long, and the increase of the communication distance does not cause a significant increase in communication costs; finally, the stability of satellite communication is high, and it is not restricted by natural disasters.
  • the propagation delay between the terminal equipment and the satellite in NTN is larger, especially in the geosynchronous orbit satellite scenario. Then, because the terminal equipment and the satellite in the NTN system The propagation delay between the terminals is long, and when considering the processing time of the terminal equipment and the air interface propagation delay, the activation configuration in the MAC CE sent by the satellite received by the terminal equipment does not take effect immediately, so when to enable the MAC CE The activation configuration in the MAC CE takes effect, and how to determine the effective time of the activation configuration in the MAC CE has become a problem to be solved.
  • NR New Radio
  • the embodiment of the present invention provides a method and related device for determining the effective time of a media access control layer control unit, so as to improve the accuracy of the effective time of MAC CE when the propagation delay between terminal equipment and network equipment is long. sex.
  • an embodiment of the present invention provides a method for determining the effective time of a media access control layer control unit, including:
  • the terminal device receives the control unit MAC CE of the media access control layer sent from the network device through the physical downlink shared channel PDSCH;
  • the terminal device decodes the PDSCH, and when the decoding is correct, sends a hybrid automatic repeat request confirmation HARQ ACK message to the network device in time slot n;
  • the terminal device calculates the effective time of the MAC CE according to the first parameter and the time slot n, the first parameter includes a timing advance TA and/or X, and the X is determined by the network device and instructed to Of the terminal equipment.
  • an embodiment of the present invention provides a method for determining the effective time of a media access control layer control unit, including:
  • the network device sends the control unit MAC CE of the media access control layer to the terminal device through the physical downlink shared channel PDSCH; the PDSCH is used by the terminal device to decode the PDSCH correctly to the network device in time slot n Send a hybrid automatic repeat request confirmation HARQ ACK message; wherein the time slot n and the first parameter are used by the terminal device to calculate the effective time of the MAC CE, and the first parameter includes the timing advance TA and/or X , The X is determined by the network device and instructed to the terminal device.
  • an embodiment of the present invention provides a terminal device.
  • the terminal device includes a processing unit and a communication unit, where:
  • the processing unit is configured to receive the control unit MAC CE of the media access control layer sent from the network device via the physical downlink shared channel PDSCH through the communication unit; and to decode the PDSCH, when the decoding is correct
  • the time slot n sends a hybrid automatic repeat request confirmation HARQ ACK message to the network device through the communication unit; and is used to calculate the effective time of the MAC CE according to the first parameter and the time slot n, so
  • the first parameter includes a timing advance TA and/or X, and the X is determined by the network device and indicated to the terminal device.
  • an embodiment of the present invention provides a network device, the network device includes a processing unit and a communication unit, wherein:
  • the processing unit is configured to send the control unit MAC CE of the media access control layer to the terminal device via the physical downlink shared channel PDSCH through the communication unit; the PDSCH is used when the terminal device decodes the PDSCH correctly , Send a hybrid automatic repeat request confirmation HARQ ACK message to the network device in time slot n; wherein, the time slot n and the first parameter are used by the terminal device to calculate the effective time of the MAC CE, and the first A parameter includes a timing advance TA and/or X, and the X is determined by the network device and indicated to the terminal device.
  • an embodiment of the present application provides a chip, including: a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes any method as in the first aspect of the embodiment of the present application Some or all of the steps described in.
  • an embodiment of the present application provides a chip, including a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes any method as in the second aspect of the embodiment of the present application Some or all of the steps described in.
  • an embodiment of the present invention provides a terminal device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured by The processor executes, and the program includes instructions for executing steps in any method of the first aspect of the embodiments of the present invention.
  • an embodiment of the present invention provides a network device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured by The processor executes, and the program includes instructions for executing steps in any method of the second aspect of the embodiments of the present invention.
  • an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute the implementation of the present invention For example, part or all of the steps described in any method of the first aspect.
  • an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the implementation of the present invention For example, part or all of the steps described in any method of the second aspect.
  • an embodiment of the present invention provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to make a computer execute such as Part or all of the steps described in any method in the first aspect of the embodiments of the present invention.
  • the computer program product may be a software installation package.
  • an embodiment of the present invention provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to make a computer execute such as Part or all of the steps described in any method in the second aspect of the embodiment of the present invention.
  • the computer program product may be a software installation package.
  • the terminal device receives the control unit MAC CE of the media access control layer sent by the network device through the physical downlink shared channel PDSCH, and then decodes the PDSCH.
  • the decoding is correct
  • the X is determined by the network device and instructed to the terminal device.
  • the terminal device can determine the time slot n for sending the HARQ ACK message according to the decoding of the PDSCH, and then determine the effective time of the MAC CE according to the first parameter and the time slot n.
  • the operation is simple and beneficial in When the propagation delay between terminal equipment and network equipment is long, the accuracy and convenience of the effective time of MAC CE are improved.
  • FIG. 1 is a network architecture diagram of a communication system provided by an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for determining the effective time of a medium access control layer control unit according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another method for determining the effective time of a medium access control layer control unit according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of yet another method for determining the effective time of a media access control layer control unit according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • Figure 6 is a schematic structural diagram of a network device provided by an embodiment of the present invention.
  • FIG. 7 is a block diagram of a functional unit composition of a terminal device according to an embodiment of the present invention.
  • Fig. 8 is a block diagram of functional units of a network device provided by an embodiment of the present invention.
  • Non-Terrestrial Network NTN
  • Global System of Mobile Communication GSM
  • Code Division Multiple Access Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE frequency division Duplex Frequency Division Duplex, FDD
  • TDD Time Division Duplex
  • LTE-A Advanced Long Term Evolution
  • New Radio New Radio, NR
  • Satellites are divided into Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (Medium-Earth Orbit, MEO) according to different orbital heights. ) Satellites, Geostationary Earth Orbit (GEO) satellites, High Elliptical Orbit (HEO) satellites, etc. in:
  • LEO The altitude range of low-orbit satellites is 500km ⁇ 1500km, and the corresponding orbit period is about 1.5 hours to 2 hours.
  • the signal propagation delay of single-hop communication between users is generally less than 20ms.
  • the maximum satellite viewing time is 20 minutes.
  • the signal propagation distance is short, the link loss is small, and the requirement for the transmission power of the user terminal is not high.
  • GEO A geosynchronous orbit satellite with an orbital height of 35786km and a rotation period of 24 hours around the earth.
  • the signal propagation delay of single-hop communication between users is generally 250ms.
  • satellites In order to ensure the coverage of satellites and increase the system capacity of the entire satellite communication system, satellites use multiple beams to cover the ground.
  • a satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover tens to hundreds of kilometers in diameter. Ground area.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • the network device 110 may be a satellite in an NTN communication network, a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • It can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device can be a mobile switching center , Relay stations, access points, in-vehicle devices, wearable devices, hubs, switches, bridges, routers, network side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN) Wait.
  • Evolutional Node B, eNB or eNodeB in an LTE system
  • CRAN Cloud Radio Access Network
  • the network device can be a mobile switching center , Relay stations, access points, in-vehicle devices, wearable devices, hubs, switches, bridges, routers, network side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN) Wait.
  • PLMN Public Land Mobile Network
  • the communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110.
  • the "terminal equipment” used here includes but is not limited to connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection ; And/or another data connection/network; and/or via a wireless interface, such as for cellular network, wireless local area network (WLAN), digital TV network such as DVB-H network, AM-FM broadcast transmission Device; and/or another terminal device that is set to receive/send communication signals; and/or the Internet of Things (IoT) device.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN wireless local area network
  • TV network such as DVB-H network, AM-FM broadcast transmission Device
  • IoT Internet of Things
  • a terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal” or a “mobile terminal”.
  • mobile terminals include, but are not limited to, cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, and Internet/Intranet connections.
  • PCS Personal Communications System
  • PDA with access, Web browser, notebook, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices including radio telephone transceivers .
  • GPS Global Positioning System
  • Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal devices 120 may perform direct terminal connection (Device to Device, D2D) communication.
  • D2D Direct terminal connection
  • Figure 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 having a communication function and a terminal device 120.
  • the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in the embodiment of the present application.
  • FIG. 2 is a method for determining the effective time of a media access control layer control unit according to an embodiment of the present invention, which is applied to the above-mentioned communication system, and the method includes some or all of the following contents:
  • the network device sends a media access control layer (Medium Access Control, MAC) control element (MAC) to the terminal device through a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).
  • MAC Media Access Control
  • MAC Physical Downlink Shared Channel
  • the MAC CE may be, for example, the following MAC CE: a secondary cell activated or deactivated MAC CE, a terminal equipment specific PDSCH transmission configuration indicator (Transmission Configuration Indicator, TCI) activated or deactivated state MAC CE, terminal equipment specific
  • TCI Transmission Configuration Indicator
  • the physical downlink control channel Physical Downlink Control Channel, PDCCH transmits the MAC CE of the configuration indication state, which is not limited here.
  • Step 202 The terminal device receives the MAC CE sent from the network device through the PDSCH.
  • Step 203 The terminal device decodes the PDSCH, and when the decoding is correct, sends a Hybrid Automatic Repeat request Acknowledge (HARQ ACK) message to the network device in time slot n.
  • HARQ ACK Hybrid Automatic Repeat request Acknowledge
  • the terminal device decodes the PDSCH, which can be checked by a Cyclic Redundancy Check (CRC), and when the check is successful, it means that the decoding is correct.
  • CRC Cyclic Redundancy Check
  • Step 204 The terminal device calculates the effective time of the MAC CE according to the first parameter and the time slot n.
  • the first parameter includes timing advance (Timing Advance, TA) and/or X, where X is determined by Determined by the network device and instructed to the terminal device.
  • Timing Advance TA
  • X is determined by Determined by the network device and instructed to the terminal device.
  • the effective time refers to the effective time slot value.
  • the effective time of the MAC CE refers to the effective time of activation or deactivation of the secondary cell; when the MAC CE is the transmission of the specific PDSCH of the terminal device
  • the MAC CE is activated or deactivated by the configuration indication (Transmission Configuration Indicator, TCI)
  • the effective time of the MAC CE refers to the effective time of the TCI activated or deactivated state of the specific PDSCH of the terminal device; when the MAC CE is the terminal
  • the effective time of the MAC CE refers to the effective time of the terminal device-specific PDCCH transmission configuration indication state.
  • the first parameter is acquired by the terminal device, and the specific implementation manners for the terminal device to acquire the first parameter may be various, for example, when the terminal device itself has a positioning function, it may be The first parameter is calculated by locating the first position information of the self and the second position information of the determined network device, or the first parameter can be obtained by receiving the first parameter indicated by the network device when the terminal device itself does not have the positioning function, There is no limitation here.
  • the first parameter is TA
  • the method further includes:
  • the terminal device calculates the TA according to the first location information and the second location information.
  • the second location information of the network device is obtained by the terminal device through pre-configured ephemeris information or ephemeris information broadcast by a satellite network.
  • the terminal device has a positioning function, that is, the terminal device can obtain its own first position information through the positioning function.
  • the specific implementation manner for the terminal device to calculate the TA according to the first location information and the second location information is to determine the distance S between the first location information and the second location information, using the formula (S* 2)/The speed of light is calculated to get TA.
  • the terminal device can obtain its own first position information through its own positioning function, and obtain the second position information of the satellite, and then calculate the TA from the first position information and the second position information, which is beneficial to guarantee the TA
  • the real-time nature of the following further improves the accuracy of the calculation of the effective time of the subsequent downlink configuration information.
  • the terminal device calculating the effective time of the MAC CE according to the first parameter and the time slot n includes:
  • the terminal device calculates the effective time of the MAC CE according to the first parameter and the time slot n through a first formula, and the first formula is n+TA.
  • the terminal device uses the TA value calculated in real time to make the MAC CE take effect at time n+TA, that is, the earliest time when the latest configuration of the network device application arrives at the terminal device is the interval after the terminal device sends the HARQ ACK message TA value (that is, Round Trip Time (RTT) time), so this method determines the earliest time when MAC CE takes effect.
  • RTT Round Trip Time
  • the first parameter is X.
  • the method also includes:
  • the terminal device receives the first parameter sent from the network device.
  • the first parameter is X
  • the network device may calculate TA based on the location of the terminal device and the location of the network device, and then calculate the value of X, and indicate it to the terminal device through signaling.
  • K offset is the network configuration or pre-configured compensation value, Represents the number of time slots included in each subframe corresponding to the physical uplink control channel (PUCCH) subcarrier configuration ⁇ .
  • PUCCH physical uplink control channel
  • the first parameter is sent by the network device through any one of the following signaling: radio resource control (Radio Resource Control, RRC) signaling, MAC CE signaling, and PDCCH signaling.
  • RRC Radio Resource Control
  • MAC CE MAC CE
  • PDCCH Physical Downlink Control
  • RRC signaling may be, for example, an RRC reconfiguration message
  • MAC CE signaling may be MAC CE signaling used to notify X value alone, or MAC CE signaling that carries a downlink activation command
  • PDCCH signaling is included in In the DCI, the PDCCH may be the PDCCH that schedules the MAC CE in step S201 above, or may be a PDCCH that is solely used to notify the value of X, which is not limited here.
  • the PDCCH signaling includes PDCCH signaling for scheduling the MAC CE, and the first parameter is included in Downlink Control Information (DCI) carried by the PDCCH signaling.
  • DCI Downlink Control Information
  • the terminal device receives the first parameter sent by the network device, and does not need to calculate the first parameter by itself, which is beneficial to the terminal device without the positioning function to accurately calculate the effective time of the downlink configuration information in the MCA CE.
  • the first parameter is X
  • the terminal device receives the control unit MAC CE of the media access control layer sent from the network device through the physical downlink shared channel PDSCH, the method further includes: The terminal device obtains the first parameter from the MAC CE.
  • the first parameter is the above-mentioned X, which will not be repeated here.
  • the terminal device can obtain the first parameter from the MAC CE without the need for the network device to indicate the first parameter through additional signaling, which is beneficial to reduce signaling consumption and expand signaling functions.
  • the terminal device calculating the effective time of the MAC CE according to the first parameter and the time slot n includes:
  • the terminal device calculates the effective time of the MAC CE using a second formula according to the first parameter and the time slot n, and the second formula is
  • K offset is a network configuration or pre-configured compensation value, Represents the number of time slots included in each subframe corresponding to the physical uplink control channel PUCCH subcarrier configuration ⁇ .
  • the terminal device introduces the X value indicated by the network side, so that the effective time of the MAC CE is controlled by the network.
  • This method is suitable for scenarios where the terminal has no positioning capability, and is beneficial to complete control of the network.
  • the terminal device receives the control unit MAC CE of the media access control layer sent by the network device through the physical downlink shared channel PDSCH, and then decodes the PDSCH.
  • the decoding is correct
  • the X is determined by the network device and instructed to the terminal device.
  • the terminal device can determine the time slot n for sending the HARQ ACK message according to the decoding of the PDSCH, and then determine the effective time of the MAC CE according to the first parameter and the time slot n.
  • the operation is simple and beneficial in When the propagation delay between terminal equipment and network equipment is long, the accuracy and convenience of the effective time of MAC CE are improved.
  • the communication system is the NTN communication system, where the terminal equipment is a user terminal, and the user terminal has a positioning function, and the network equipment is a satellite.
  • the terminal equipment is a user terminal
  • the user terminal has a positioning function
  • the network equipment is a satellite.
  • Step 301 The network device sends the MAC CE to the terminal device through the PDSCH.
  • Step 302 The terminal device receives the MAC CE sent from the network device through the PDSCH.
  • Step 303 The terminal device decodes the PDSCH, and when the decoding is correct, sends a HARQ ACK message to the network device in time slot n.
  • Step 304 The terminal device obtains the first position information of the terminal device and the second position information of the satellite;
  • Step 305 The terminal device calculates a timing advance TA value according to the first location information and the second location information.
  • Step 306 The terminal device calculates the effective time of the MAC CE according to the TA value and the time slot n through a first formula, where the first formula is n+TA.
  • the terminal device uses the TA value calculated in real time to make the MAC CE effective time n+TA time, that is, the earliest time when the latest configuration of the network device application arrives at the terminal device is when the terminal device finishes sending HARQ After the ACK message, there is a TA value (that is, Round Trip Time (RTT) time). Therefore, this method determines the earliest time when MAC CE takes effect.
  • RTT Round Trip Time
  • the communication system is an NTN communication system, where the terminal equipment is a user terminal, and the user terminal does not have a positioning function, and the network equipment is a satellite.
  • the terminal equipment is a user terminal, and the user terminal does not have a positioning function
  • the network equipment is a satellite.
  • Step 401 The network device sends the first parameter X to the terminal device.
  • Step 402 The terminal device receives the first parameter X sent from the network device.
  • Step 403 The network device sends the MAC CE to the terminal device through the PDSCH.
  • Step 404 The terminal device receives the MAC CE sent from the network device through the PDSCH.
  • Step 405 The terminal device decodes the PDSCH, and when the decoding is correct, sends a HARQ ACK message to the network device in time slot n.
  • Step 406 The terminal device calculates the effective time of the MAC CE using a second formula according to the first parameter and the time slot n, and the second formula is
  • K offset is a network configuration or pre-configured compensation value, Represents the number of time slots included in each subframe corresponding to the physical uplink control channel PUCCH subcarrier configuration ⁇ .
  • the terminal device introduces the X value indicated by the network side, so that the effective time of the MAC CE is controlled by the network.
  • This method is suitable for scenarios where the terminal has no positioning capability, and is beneficial to complete control of the network.
  • FIG. 5 is a schematic structural diagram of a terminal device 500 provided by an embodiment of the present application.
  • the terminal device 500 includes a processor 510, The memory 520, the communication interface 530, and one or more programs 521, wherein the one or more programs 521 are stored in the foregoing memory 520 and configured to be executed by the foregoing processor 510, and the one or more programs 521 Include instructions for performing the following operations.
  • the first parameter includes a timing advance TA and/or X
  • the X is determined by the network device and instructed to the terminal device of.
  • the terminal device receives the control unit MAC CE of the media access control layer sent by the network device through the physical downlink shared channel PDSCH, and then decodes the PDSCH.
  • the decoding is correct
  • the X is determined by the network device and instructed to the terminal device.
  • the terminal device can determine the time slot n for sending the HARQ ACK message according to the decoding of the PDSCH, and then determine the effective time of the MAC CE according to the first parameter and the time slot n.
  • the operation is simple and beneficial in When the propagation delay between terminal equipment and network equipment is long, the accuracy and convenience of the effective time of MAC CE are improved.
  • the MAC CE includes at least the following MAC CEs: a secondary cell activated or deactivated MAC CE, a terminal device specific PDSCH transmission configuration indicating an activated or deactivated state MAC CE, and a terminal device specific physical downlink
  • the control channel PDCCH transmits the MAC CE which is configured to indicate the status.
  • the first parameter is TA
  • the instructions in the one or more programs 521 further include instructions for performing the following steps: acquiring the first location information of the terminal device and the network Second location information of the device; and calculating the TA according to the first location information and the second location information.
  • the network device is a satellite
  • the second location information of the network device is obtained by the terminal device through pre-configured ephemeris information or network broadcast ephemeris information.
  • the instructions in the one or more programs 521 are specifically used to execute the following instructions:
  • the first parameter and the time slot n are used to calculate the effective time of the MAC CE using a first formula, and the first formula is n+TA.
  • the first parameter is X
  • the instructions in the one or more programs 521 further include instructions for executing the following steps: receiving the first parameter sent from the network device.
  • the first parameter is sent by the network device through any one of the following signaling: radio resource control RRC signaling, MAC CE signaling, and PDCCH signaling.
  • the PDCCH signaling includes PDCCH signaling for scheduling the MAC CE, and the first parameter is included in the downlink control information DCI carried by the PDCCH signaling.
  • the first parameter is X
  • the instructions in the one or more programs 521 further include instructions for executing the following steps: in the physical downlink shared channel PDSCH receiving a transmission from a network device After the MAC CE, the control unit of the media access control layer in the MAC, acquires the first parameter from the MAC CE.
  • the instructions in the one or more programs 521 are specifically used to execute the following instructions:
  • the terminal device calculates the effective time of the MAC CE using a second formula according to the first parameter and the time slot n, and the second formula is Where X is the first parameter, K offset is a network configuration or pre-configured compensation value, Represents the number of time slots included in each subframe corresponding to the physical uplink control channel PUCCH subcarrier configuration ⁇ .
  • FIG. 6 is a schematic structural diagram of a network device 600 according to an embodiment of the present application.
  • the network device 600 includes a processor 610, The memory 620, the communication interface 630, and one or more programs 621, where the one or more programs 621 are stored in the foregoing memory 620 and configured to be executed by the foregoing processor 610, and the one or more programs 621 Include instructions for performing the following operations.
  • the control unit MAC CE of the media access control layer is sent to the terminal device through the physical downlink shared channel PDSCH; the PDSCH is used by the terminal device to send the hybrid to the network device in time slot n when the PDSCH is correctly decoded Automatic retransmission request confirmation HARQ ACK message; wherein, the time slot n and the first parameter are used by the terminal device to calculate the effective time of the MAC CE, and the first parameter includes the timing advance TA and/or X, so The X is determined by the network device and instructed to the terminal device.
  • the network device sends the MAC CE of the media access control layer to the terminal device through the physical downlink shared channel PDSCH; after receiving the MAC CE, the terminal device decodes the PDSCH, When the decoding is correct, the HARQ ACK message is sent to the network device in the time slot n, and the MAC CE effective time is calculated according to the first parameter and the time slot n, and the first
  • the parameters include timing advance TA and/or X, where X is determined by the network device and indicated to the terminal device.
  • the terminal device can determine the time slot n for sending the HARQ ACK message according to the decoding of the PDSCH, and then determine the effective time of the MAC CE according to the first parameter and the time slot n.
  • the operation is simple and beneficial in When the propagation delay between terminal equipment and network equipment is long, the accuracy and convenience of the effective time of MAC CE are improved.
  • the MAC CE includes at least the following MAC CEs: a secondary cell activated or deactivated MAC CE, a terminal device specific PDSCH transmission configuration indicating an activated or deactivated state MAC CE, and a terminal device specific physical downlink
  • the control channel PDCCH transmits the MAC CE which is configured to indicate the status.
  • the first parameter is a timing advance TA
  • the TA is calculated by the terminal device through the first location information of the terminal device and the second location information of the network device.
  • the network device is a satellite
  • the second location information of the network device is obtained by the terminal device through pre-configured ephemeris information or network broadcast ephemeris information.
  • the time slot n and the first parameter are used by the terminal device to calculate the effective time of the MAC CE by using a first formula, and the first formula is n+TA.
  • the one or more programs 621 further include instructions for performing the following operations: sending the first parameter to the terminal device.
  • the network device sends the first parameter to the terminal device through any one of the following signaling: radio resource control RRC signaling, MAC CE signaling, and PDCCH signaling.
  • the PDCCH signaling includes PDCCH signaling for scheduling the MAC CE, and the first parameter is included in the downlink control information DCI carried by the PDCCH signaling.
  • the first parameter is obtained by the terminal device from the MAC CE.
  • the time slot n and the first parameter are used by the terminal device to calculate the effective time of the MAC CE through a second formula, and the second formula is Where X is the first parameter, K offset is a network configuration or pre-configured compensation value, Represents the number of time slots included in each subframe corresponding to the physical uplink control channel PUCCH subcarrier configuration ⁇ .
  • the terminal device and the network device include hardware structures and/or software modules corresponding to the respective functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiment of the present application may divide the terminal device and the network device into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or in the form of software program modules. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 7 shows a block diagram of a possible functional unit composition of the terminal device involved in the foregoing embodiment.
  • the terminal device 700 includes a processing unit 702 and a communication unit 703.
  • the processing unit 702 is used to control and manage the actions of the terminal device.
  • the communication unit 703 is used to support communication between the terminal device and other devices, for example, communication with the network device shown in FIG. 6.
  • the terminal device may also include a storage unit 701 for storing program codes and data of the terminal device.
  • the processing unit 702 may be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), and an application-specific integrated circuit (Application-Specific Integrated Circuit). Integrated Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the present invention.
  • the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication unit 703 may be a communication interface, a transceiver circuit, etc., and the storage unit 701 may be a memory.
  • the processing unit 702 is a processor
  • the communication unit 703 is a communication interface
  • the storage unit 701 is a memory
  • the terminal device involved in the embodiment of the present application may be the terminal device shown in FIG. 5.
  • the processing unit 702 is used to perform any step performed by the terminal device in the above method embodiment, and when performing data transmission such as sending, it can optionally call the communication unit 703 to complete the corresponding operation .
  • the processing unit 702 can optionally call the communication unit 703 to complete the corresponding operation .
  • the processing unit 702 is configured to receive the control unit MAC CE of the media access control layer sent from the network device via the physical downlink shared channel PDSCH through the communication unit 703; and to decode the PDSCH, when the When the decoding is correct, in the time slot n, the communication unit 703 sends a hybrid automatic repeat request confirmation HARQ ACK message to the network device; and is used to calculate the validity of the MAC CE according to the first parameter and the time slot n Time, the first parameter includes a timing advance TA and/or X, and the X is determined by the network device and indicated to the terminal device.
  • the terminal device receives the control unit MAC CE of the media access control layer sent by the network device through the physical downlink shared channel PDSCH, and then decodes the PDSCH.
  • the decoding is correct
  • the X is determined by the network device and instructed to the terminal device.
  • the terminal device can determine the time slot n for sending the HARQ ACK message according to the decoding of the PDSCH, and then determine the effective time of the MAC CE according to the first parameter and the time slot n.
  • the operation is simple and beneficial in When the propagation delay between terminal equipment and network equipment is long, the accuracy and convenience of the effective time of MAC CE are improved.
  • the MAC CE includes at least the following MAC CEs: a secondary cell activated or deactivated MAC CE, a terminal device specific PDSCH transmission configuration indicating an activated or deactivated state MAC CE, and a terminal device specific physical downlink
  • the control channel PDCCH transmits the MAC CE which is configured to indicate the status.
  • the first parameter is TA
  • the processing unit 702 is further configured to: obtain first location information of the terminal device and second location information of the network device; and The TA is calculated by a position information and the second position information.
  • the network device is a satellite
  • the second location information of the network device is obtained by the terminal device through pre-configured ephemeris information or network broadcast ephemeris information.
  • the processing unit 702 is specifically configured to: according to the first parameter and the The time slot n calculates the effective time of the MAC CE through a first formula, and the first formula is n+TA.
  • the first parameter is X
  • the processing unit 702 is further configured to: receive the first parameter sent from the network device through the communication unit 703.
  • the first parameter is sent by the network device through any one of the following signaling: radio resource control RRC signaling, MAC CE signaling, and PDCCH signaling.
  • the PDCCH signaling includes PDCCH signaling for scheduling the MAC CE, and the first parameter is included in the downlink control information DCI carried by the PDCCH signaling.
  • the first parameter is X
  • the processing unit 702 is further configured to: Obtain the first parameter from the MAC CE.
  • the processing unit 702 is specifically configured to: the terminal device according to the first parameter And the time slot n to calculate the effective time of the MAC CE through a second formula, and the second formula is Where X is the first parameter, K offset is a network configuration or pre-configured compensation value, Represents the number of time slots included in each subframe corresponding to the physical uplink control channel PUCCH subcarrier configuration ⁇ .
  • FIG. 8 shows a block diagram of a possible functional unit composition of the network device involved in the foregoing embodiment.
  • the network device 800 includes a processing unit 802 and a communication unit 803.
  • the network device 800 further includes a processing unit 802 configured to control and manage the actions of the network device.
  • the communication unit 803 is used to support communication between the network device and other devices, for example, communication with the terminal device shown in FIG. 5.
  • the network device may also include a storage unit 801 for storing program codes and data of the network device.
  • the processing unit 802 may be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), and an application-specific integrated circuit (Application-Specific Integrated Circuit). Integrated Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the present invention.
  • the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication unit 803 may be a communication interface, a transceiver circuit, etc.
  • the storage unit 801 may be a memory.
  • the processing unit 802 is a processor
  • the communication unit 803 is a communication interface
  • the storage unit 801 is a memory
  • the network device involved in the embodiment of the present application may be the network device shown in FIG. 6.
  • the processing unit 802 is used to execute any step performed by the network device in the above method embodiment, and when performing data transmission such as sending, the communication unit 803 can be optionally invoked to complete the corresponding operation .
  • the detailed description will be given below.
  • the processing unit 802 is configured to send the control unit MAC CE of the media access control layer to the terminal device via the physical downlink shared channel PDSCH through the communication unit 803; the PDSCH is used for the terminal device to decode the PDSCH When it is correct, send a hybrid automatic repeat request confirmation HARQ ACK message to the network device in time slot n; wherein, the time slot n and the first parameter are used by the terminal device to calculate the effective time of the MAC CE, so
  • the first parameter includes a timing advance TA and/or X, and the X is determined by the network device and indicated to the terminal device.
  • the network device sends the MAC CE of the media access control layer to the terminal device through the physical downlink shared channel PDSCH; after receiving the MAC CE, the terminal device decodes the PDSCH, When the decoding is correct, the HARQ ACK message is sent to the network device in the time slot n, and the MAC CE effective time is calculated according to the first parameter and the time slot n, and the first
  • the parameters include timing advance TA and/or X, where X is determined by the network device and indicated to the terminal device.
  • the terminal device can determine the time slot n for sending the HARQ ACK message according to the decoding of the PDSCH, and then determine the effective time of the MAC CE according to the first parameter and the time slot n.
  • the operation is simple and beneficial in When the propagation delay between terminal equipment and network equipment is long, the accuracy and convenience of the effective time of MAC CE are improved.
  • the MAC CE includes at least the following MAC CEs: a secondary cell activated or deactivated MAC CE, a terminal device specific PDSCH transmission configuration indicating an activated or deactivated state MAC CE, and a terminal device specific physical downlink
  • the control channel PDCCH transmits the MAC CE which is configured to indicate the status.
  • the first parameter is a timing advance TA
  • the TA is calculated by the terminal device through the first location information of the terminal device and the second location information of the network device.
  • the network device is a satellite
  • the second location information of the network device is obtained by the terminal device through pre-configured ephemeris information or network broadcast ephemeris information.
  • the time slot n and the first parameter are used by the terminal device to calculate the effective time of the MAC CE by using a first formula, and the first formula is n+TA.
  • the processing unit 802 is further configured to send the first parameter to the terminal device through the communication unit 803.
  • the network device sends the first parameter to the terminal device through any one of the following signaling: radio resource control RRC signaling, MAC CE signaling, and PDCCH signaling.
  • the PDCCH signaling includes PDCCH signaling for scheduling the MAC CE, and the first parameter is included in the downlink control information DCI carried by the PDCCH signaling.
  • the first parameter is obtained by the terminal device from the MAC CE.
  • the time slot n and the first parameter are used by the terminal device to calculate the effective time of the MAC CE through a second formula, and the second formula is Where X is the first parameter, K offset is a network configuration or pre-configured compensation value, Represents the number of time slots included in each subframe corresponding to the physical uplink control channel PUCCH subcarrier configuration ⁇ .
  • the embodiment of the present application also provides a chip, wherein the chip includes a processor, which is used to call and run a computer program from the memory, so that the device installed with the chip executes the method described in the terminal device in the above method embodiment. Part or all of the steps.
  • the embodiment of the present application also provides a chip, wherein the chip includes a processor, which is used to call and run a computer program from the memory, so that the device installed with the chip executes the network device described in the above method embodiment. Part or all of the steps.
  • the embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal in the above method embodiment Some or all of the steps described by the device.
  • the embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the network in the above-mentioned method embodiment. Some or all of the steps described by the device.
  • the embodiments of the present application also provide a computer program product, wherein the computer program product includes a computer program, and the computer program is operable to make a computer execute part or all of the steps described in the terminal device in the above method embodiment.
  • the computer program product may be a software installation package.
  • the embodiments of the present application also provide a computer program product, wherein the computer program product includes a computer program, and the computer program is operable to cause a computer to execute part or all of the steps described in the network device in the above method embodiment.
  • the computer program product may be a software installation package.
  • the steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), and erasable programmable read-only memory ( Erasable Programmable ROM (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the ASIC may be located in an access network device, a target network device, or a core network device.
  • the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a Digital Video Disc (DVD)), or a semiconductor medium (for example, a Solid State Disk (SSD)) )Wait.

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Abstract

本发明实施例公开了媒体接入控制层控制单元生效时间的确定方法及相关产品，包括：终端设备通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE；所述终端设备对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息；所述终端设备根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。本发明实施例有利于在终端设备与网络设备之间的传播时延较长的情况下，提升MAC CE生效时间的准确性。

Description

媒体接入控制层控制单元生效时间的确定方法及相关产品 技术领域
本发明涉及通信技术领域，尤其涉及一种媒体接入控制层控制单元生效时间的确定方法及相关产品。
背景技术
非地面通信网络(Non Terrestrial Network,NTN)技术一般采用卫星通信的方式向地面用户提供通信服务。相比地面蜂窝网通信，卫星通信具有很多独特的优点。首先，卫星通信不受用户地域的限制，例如一般的陆地通信不能覆盖海洋、高山、沙漠等无法搭设通信设备或由于人口稀少而不做通信覆盖的区域，而对于卫星通信来说，由于一颗卫星即可以覆盖较大的地面，加之卫星可以围绕地球做轨道运动，因此理论上地球上每一个角落都可以被卫星通信覆盖。其次，卫星通信有较大的社会价值。卫星通信在边远山区、贫穷落后的国家或地区都可以以较低的成本覆盖到，从而使这些地区的人们享受到先进的语音通信和移动互联网技术，有利于缩小与发达地区的数字鸿沟，促进这些地区的发展。再次，卫星通信距离远，且通信距离的增大没有导致通讯成本的明显增加；最后，卫星通信的稳定性高，不受自然灾害的限制。
与传统新空口(New Radio,NR)采用的蜂窝网络相比，NTN中终端设备与卫星之间的传播延时较大，尤其是地球同步轨道卫星场景，那么，由于NTN系统中终端设备与卫星之间的传播延时较长，且当考虑终端设备的处理时间和空口传播时延时，终端设备接收到的卫星发送的MAC CE中的激活配置并不能立即生效，那么在何时使MAC CE中的激活配置生效，如何确定MAC CE中的激活配置的生效时间成为需要解决的问题。
发明内容
本发明的实施例提供一种媒体接入控制层控制单元生效时间的确定方法及相关装置，以期在终端设备与网络设备之间的传播时延较长的情况下，提升MAC CE生效时间的准确性。
第一方面，本发明实施例提供一种媒体接入控制层控制单元生效时间的确定方法，包括：
终端设备通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE；
所述终端设备对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息；
所述终端设备根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
第二方面，本发明实施例提供一种媒体接入控制层控制单元生效时间的确定方法，包括：
网络设备通过物理下行共享信道PDSCH向终端设备发送媒体接入控制层的控制单元MAC CE；所述PDSCH用于所述终端设备在对所述PDSCH解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息；其中，所述时隙n和第一参数用于所述终端设备计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
第三方面，本发明实施例提供一种终端设备，所述终端设备包括处理单元和通信单元，其中，
所述处理单元，用于通过所述通信单元由物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE；以及用于对所述PDSCH进行解码，当所述解码正确时，在时隙n通过所述通信单元向所述网络设备发送混合自动重传请求确认HARQ ACK消息；以及用于根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
第四方面，本发明实施例提供一种网络设备，所述网络设备包括处理单元和通信单元，其中，
所述处理单元，用于通过所述通信单元由物理下行共享信道PDSCH向终端设备发送媒体接入控制层的控制单元MAC CE；所述PDSCH用于所述终端设备在对所述PDSCH解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息；其中，所述时隙n和第一参数用于所述终端设备计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
第五方面，本申请实施例提供了一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如本申请实施例第一方面任一方法中所描述的部分或全部步骤。
第六方面，本申请实施例提供了一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如本申请实施例第二方面任一方法中所描述的部分或全部步骤。
第七方面，本发明实施例提供一种终端设备，包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行本发明实施例第一方面任一方法中的步骤的指令。
第八方面，本发明实施例提供一种网络设备，包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行本发明实施例第二方面任一方法中的步骤的指令。
第九方面，本发明实施例提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如本发明实施例第一方面任一方法中所描述的部分或全部步骤。
第十方面，本发明实施例提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如本发明实施例第二方面任一方法中所描述的部分或全部步骤。
第十一方面，本发明实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如本发明实施例第一方面任一方法中所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
第十二方面，本发明实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如本发明实施例第二方面任一方法中所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
可以看出，本发明实施例中，终端设备通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE，然后，对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息，并根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。可见，终端设备在接收到MAC CE后，可以根据对PDSCH的解码情况确定发送HARQ ACK消息的时隙n，进而根据第一参数和时隙n确定MAC CE的生效时间，操作简单，有利于在终端设备与网络设备之间的传播时延较长的情况下，提升MAC CE生效时间的准确性和便捷性。
附图说明
下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1是本发明实施例提供的一种通信系统的网络架构图；
图2是本发明实施例提供的一种媒体接入控制层控制单元生效时间的确定方法的流程示意图；
图3是本发明实施例提供的另一种媒体接入控制层控制单元生效时间的确定方法的流程示意图；
图4是本发明实施例提供的又一种媒体接入控制层控制单元生效时间的确定方法的流程示意图；
图5是本发明实施例提供的一种终端设备的结构示意图；
图6是本发明实施例提供的一种网络设备的结构示意图；
图7是本发明实施例提供的一种终端设备的功能单元组成框图；
图8是本发明实施例提供的一种网络设备的功能单元组成框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统，例如：非地面通信网络(Non Terrestrial Network,NTN)、全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex， TDD)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频段上的NR(NR-based access to unlicensed spectrum，NR-U)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、下一代通信系统或其他通信系统等。
其中，上述NTN技术一般采用卫星通信的方式向地面用户提供通信服务通信，卫星按照轨道高度的不同分为低地球轨道(Low-Earth Orbit,LEO)卫星、中地球轨道(Medium-Earth Orbit,MEO)卫星、地球同步轨道(Geostationary Earth Orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等等。其中：
LEO：低轨道卫星高度范围为500km～1500km，相应轨道周期约为1.5小时～2小时。用户间单跳通信的信号传播延迟一般小于20ms。最大卫星可视时间20分钟。信号传播距离短，链路损耗少，对用户终端的发射功率要求不高。
GEO：地球同步轨道卫星，轨道高度为35786km，围绕地球旋转周期为24小时。用户间单跳通信的信号传播延迟一般为250ms。
为了保证卫星的覆盖以及提升整个卫星通信系统的系统容量，卫星采用多波束覆盖地面，一颗卫星可以形成几十甚至数百个波束来覆盖地面；一个卫星波束可以覆盖直径几十至上百公里的地面区域。
示例性的，本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备110可以是NTN通信网络中的卫星，也可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地，终端设备120之间可以进行终端直连(Device to Device，D2D)通信。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120 可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
请参阅图2，图2是本发明实施例提供的一种媒体接入控制层控制单元生效时间的确定方法，应用于上述通信系统，该方法包括以下内容中的部分或全部：
步骤201，网络设备通过物理下行共享信道(Physical Downlink Shared Channel,PDSCH)向终端设备发送媒体接入控制层(Medium Access Control,MAC)的控制单元(MAC Control Element,MAC CE)。
其中，所述MAC CE例如可以是以下MAC CE：辅小区激活或去激活的MAC CE、终端设备特定PDSCH的传输配置指示(Transmission Configuration Indicator,TCI)激活或去激活状态的MAC CE、终端设备特定的物理下行控制信道(Physical Downlink Control Channel,PDCCH)传输配置指示状态的MAC CE，在此不做限定。
步骤202，所述终端设备通过所述PDSCH接收来自所述网络设备发送的所述MAC CE。
步骤203，所述终端设备对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认(Hybrid Automatic Repeat request Acknowledge，HARQ ACK)消息。
其中，所述终端设备对所述PDSCH进行解码，可以通过循环冗余校验码(Cyclic Redundancy Check,CRC)进行校验，当校验成功，则表示解码正确。
步骤204，所述终端设备根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前(Timing Advance,TA)和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
其中，生效时间指的是生效时隙值。
其中，当所述MAC CE为辅小区激活或去激活的MAC CE时，所述MAC CE的生效时间是指辅小区激活或去激活的生效时间；当所述MAC CE为终端设备特定PDSCH的传输配置指示(Transmission Configuration Indicator,TCI)激活或去激活状态的MAC CE时，所述MAC CE的生效时间是指终端设备特定PDSCH的TCI激活或去激活状态的生效时间；当所述MAC CE为终端设备特定的PDCCH传输配置指示状态的MAC CE时，所述MAC CE的生效时间是指终端设备特定的PDCCH传输配置指示状态的生效时间。
其中，所述第一参数由所述终端设备获取，所述终端设备获取所述第一参数的具体实现方式可以是多种多样的，例如可以是，当终端设备自身具备定位功能时，可以通过定位自身的第一位置信息和确定网络设备的第二位置信息计算第一参数，或者可以是当终端设备自身不具备定位功能时，通过接收网络设备指示的第一参数来获取该第一参数，在此不做限定。
在一个可能的示例中，所述第一参数为TA，所述方法还包括：
所述终端设备获取所述终端设备的第一位置信息和所述网络设备的第二位置信息；
所述终端设备根据所述第一位置信息和所述第二位置信息计算所述TA。
其中，所述网络设备为卫星时，所述网络设备的第二位置信息为所述终端设备通过预配置的星历信息或卫星网络广播的星历信息获得的。
其中，在该示例中，终端设备具有定位功能，即终端设备可以通过定位功能获取自身的第一位置信息。
其中，所述终端设备根据所述第一位置信息和所述第二位置信息计算所述TA的具体实现方式为确定第一位置信息和第二位置信息之间的距离S，通过公式(S*2)/光速来计算得到TA。
可见，本示例中，终端设备可以通过自身的定位功能获取自身的第一位置信息，并获取卫星的第二位置信息，进而通过第一位置信息和第二位置信息计算得到TA，有利于保障TA的实时性，进而提升后续下行配置信息生效时间计算的准确性。
根据上述示例中，当终端设备具备定位功能时，即第一参数为TA时，所述终端设备根据所述第一参数和所述时隙n计算所述MAC CE的生效时间，包括：
所述终端设备根据所述第一参数和所述时隙n通过第一公式计算所述MAC CE的生效时间，所述第一公式为n+TA。
可见，本示例中，终端设备通过实时计算的TA值，使得MAC CE生效的时间为n+TA时刻，即网络设备应用的最新配置最早到达终端设备的时刻是终端设备发送完HARQ ACK消息之后相隔TA值(即往 返传输时间(Round Trip Time,RTT)时间)，因此该方法确定了MAC CE生效的最早时间，该示例适用于终端设备有定位能力的场景，方法简单，易于实现。
在另一个可能的示例中，所述第一参数为X，所述终端设备通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE的同时或之前，所述方法还包括：
所述终端设备接收来自所述网络设备发送的所述第一参数。
其中，所述第一参数为X，其中，
Figure PCTCN2020076603-appb-000001
其中，网络设备可以基于终端设备的位置和网络设备的位置计算TA，进而计算得到X的值，并通过信令指示给终端设备。
其中，K offset为网络配置或预配置的补偿值，
Figure PCTCN2020076603-appb-000002
表示物理上行控制信道(Physical Uplink Control Channel,PUCCH)子载波配置μ对应的每子帧所包含的时隙个数。
其中，所述第一参数为所述网络设备通过以下任意一种信令发送的：无线资源控制(Radio Resource Control,RRC)信令、MAC CE信令、PDCCH信令。
其中，RRC信令，例如可以是RRC重配置消息；MAC CE信令，可以是单独用于通知X值的MAC CE信令，也可以是携带下行激活命令的MAC CE；PDCCH信令，包含在DCI中，该PDCCH可以是调度上述S201步骤中的MAC CE的PDCCH，也可以是单独用于通知X值的PDCCH，在此不做限定。
其中，所述PDCCH信令包括调度所述MAC CE的PDCCH信令，所述第一参数包含在PDCCH信令承载的下行控制信息(Downlink Control Information,DCI)中。
可见，本示例中，终端设备接收网络设备发送的第一参数，而不需要自身计算第一参数，有利于不具备定位功能的终端设备准确的计算MCA CE中下行配置信息的生效时间。
在又一个可能的示例中，所述第一参数为X，所述终端设备通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE之后，所述方法还包括：所述终端设备从所述MAC CE中获取所述第一参数。
其中，所述第一参数为上述X，在此不做赘述。
可见，本示例中，终端设备可以从MAC CE中获取第一参数，而不需要网络设备通过额外的信令来指示第一参数，有利于降低信令消耗，扩展信令的功能。
在上述两个示例中，当终端设备不具备定位功能时，即第一参数为X时，所述终端设备根据第一参数和所述时隙n计算所述MAC CE的生效时间，包括：
所述终端设备根据所述第一参数和所述时隙n通过第二公式计算所述MAC CE生效时间，所述第二公式为
Figure PCTCN2020076603-appb-000003
其中，X为所述第一参数，K offset为网络配置或预配置的补偿值，
Figure PCTCN2020076603-appb-000004
表示物理上行控制信道PUCCH子载波配置μ对应的每子帧所包含的时隙个数。
可见，本示例中，终端设备通过引入网络侧指示的X值，使得MAC CE生效时间受网络控制。该方法适用于终端没有定位能力的场景，有利于网络做完全的控制。
可以看出，本发明实施例中，终端设备通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE，然后，对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息，并根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。可见，终端设备在接收到MAC CE后，可以根据对PDSCH的解码情况确定发送HARQ ACK消息的时隙n，进而根据第一参数和时隙n确定MAC CE的生效时间，操作简单，有利于在终端设备与网络设备之间的传播时延较长的情况下，提升MAC CE生效时间的准确性和便捷性。
下面结合具体场景，对本发明实施例进行举例说明。
具体的，通信系统为NTN通信系统，其中，终端设备为用户终端，且用户终端具备定位功能，网络设备为卫星，请参阅图3：
步骤301，网络设备通过PDSCH向终端设备发送MAC CE。
步骤302，所述终端设备通过所述PDSCH接收来自所述网络设备发送的所述MAC CE。
步骤303，所述终端设备对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送HARQ ACK消息。
步骤304，所述终端设备获取所述终端设备的第一位置信息和卫星的第二位置信息；
步骤305，所述终端设备根据所述第一位置信息和所述第二位置信息计算定时提前TA值。
步骤306，所述终端设备根据所述TA值和所述时隙n通过第一公式计算所述MAC CE的生效时间， 所述第一公式为n+TA。
可以看出，本发明实施例中，终端设备通过实时计算的TA值，使得MAC CE生效的时间为n+TA时刻，即网络设备应用的最新配置最早到达终端设备的时刻是终端设备发送完HARQ ACK消息之后相隔TA值(即往返传输时间(Round Trip Time,RTT)时间)，因此该方法确定了MAC CE生效的最早时间，该示例适用于终端设备有定位能力的场景，方法简单，易于实现。
具体的，通信系统为NTN通信系统，其中，终端设备为用户终端，且用户终端不具备定位功能，网络设备为卫星，请参阅图4：
步骤401，网络设备向终端设备发送第一参数X。
步骤402，所述终端设备接收来自所述网络设备发送的所述第一参数X。
步骤403，所述网络设备通过PDSCH向所述终端设备发送MAC CE。
步骤404，所述终端设备通过所述PDSCH接收来自所述网络设备发送的所述MAC CE。
步骤405，所述终端设备对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送HARQ ACK消息。
步骤406，所述终端设备根据所述第一参数和所述时隙n通过第二公式计算所述MAC CE的生效时间，所述第二公式为
Figure PCTCN2020076603-appb-000005
其中，X为所述第一参数，K offset为网络配置或预配置的补偿值，
Figure PCTCN2020076603-appb-000006
表示物理上行控制信道PUCCH子载波配置μ对应的每子帧所包含的时隙个数。
可以看出，本发明实施例中，终端设备通过引入网络侧指示的X值，使得MAC CE生效时间受网络控制。该方法适用于终端没有定位能力的场景，有利于网络做完全的控制。
与上述图2所示的实施例一致的，请参阅图5，图5是本申请实施例提供的一种终端设备500的结构示意图，如图所示，所述终端设备500包括处理器510、存储器520、通信接口530以及一个或多个程序521，其中，所述一个或多个程序521被存储在上述存储器520中，并且被配置由上述处理器510执行，所述一个或多个程序521包括用于执行如下操作的指令。
通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE；
对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息；
根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
可以看出，本申请实施例中，终端设备通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE，然后，对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息，并根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。可见，终端设备在接收到MAC CE后，可以根据对PDSCH的解码情况确定发送HARQ ACK消息的时隙n，进而根据第一参数和时隙n确定MAC CE的生效时间，操作简单，有利于在终端设备与网络设备之间的传播时延较长的情况下，提升MAC CE生效时间的准确性和便捷性。
在一个可能的示例中，所述MAC CE至少包含以下MAC CE：辅小区激活或去激活的MAC CE、终端设备特定PDSCH的传输配置指示激活或去激活状态的MAC CE、终端设备特定的物理下行控制信道PDCCH传输配置指示状态的MAC CE。
在一个可能的示例中，所述第一参数为TA，所述一个或多个程序521中的指令还包括用于执行以下步骤的指令：获取所述终端设备的第一位置信息和所述网络设备的第二位置信息；以及根据所述第一位置信息和所述第二位置信息计算所述TA。
在这个可能的示例中，所述网络设备为卫星，所述网络设备的第二位置信息为所述终端设备通过预配置的星历信息或网络广播的星历信息获得的。
在一个可能的示例中，在所述根据第一参数和所述时隙n计算所述MAC CE的生效时间方面，所述一个或多个程序521中的指令具体用于执行以下指令：根据所述第一参数和所述时隙n通过第一公式计算所述MAC CE的生效时间，所述第一公式为n+TA。
在一个可能的示例中，所述第一参数为X，所述一个或多个程序521中的指令还包括用于执行以下 步骤的指令：接收来自所述网络设备发送的所述第一参数。
在这个可能的示例中，所述第一参数为所述网络设备通过以下任意一种信令发送的：无线资源控制RRC信令、MAC CE信令、PDCCH信令。
在这个可能的示例中，所述PDCCH信令包括调度所述MAC CE的PDCCH信令，所述第一参数包含在PDCCH信令承载的下行控制信息DCI中。
在一个可能的示例中，所述第一参数为X，所述一个或多个程序521中的指令还包括用于执行以下步骤的指令：在所述通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE之后，从所述MAC CE中获取所述第一参数。
在一个可能的示例中，在所述根据所述第一参数和所述时隙n计算所述MAC CE的生效时间方面，所述一个或多个程序521中的指令具体用于执行以下指令：所述终端设备根据所述第一参数和所述时隙n通过第二公式计算所述MAC CE生效时间，所述第二公式为
Figure PCTCN2020076603-appb-000007
其中，X为所述第一参数，K offset为网络配置或预配置的补偿值，
Figure PCTCN2020076603-appb-000008
表示物理上行控制信道PUCCH子载波配置μ对应的每子帧所包含的时隙个数。
与上述图2所示的实施例一致的，请参阅图6，图6是本申请实施例提供的一种网络设备600的结构示意图，如图所示，所述网络设备600包括处理器610、存储器620、通信接口630以及一个或多个程序621，其中，所述一个或多个程序621被存储在上述存储器620中，并且被配置由上述处理器610执行，所述一个或多个程序621包括用于执行如下操作的指令。
通过物理下行共享信道PDSCH向终端设备发送媒体接入控制层的控制单元MAC CE；所述PDSCH用于所述终端设备在对所述PDSCH解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息；其中，所述时隙n和第一参数用于所述终端设备计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
可以看出，本申请实施例中，网络设备通过物理下行共享信道PDSCH向终端设备发送媒体接入控制层的控制单元MAC CE；终端设备在接收到该MAC CE后，对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息，并根据第一参数和所述时隙n计算所述MAC CE生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。可见，终端设备在接收到MAC CE后，可以根据对PDSCH的解码情况确定发送HARQ ACK消息的时隙n，进而根据第一参数和时隙n确定MAC CE的生效时间，操作简单，有利于在终端设备与网络设备之间的传播时延较长的情况下，提升MAC CE生效时间的准确性和便捷性。
在一个可能的示例中，所述MAC CE至少包含以下MAC CE：辅小区激活或去激活的MAC CE、终端设备特定PDSCH的传输配置指示激活或去激活状态的MAC CE、终端设备特定的物理下行控制信道PDCCH传输配置指示状态的MAC CE。
在一个可能的示例中，所述第一参数为定时提前TA，所述TA为所述终端设备通过所述终端设备的第一位置信息和所述网络设备的第二位置信息计算得到的。
在这个可能的示例中，所述网络设备为卫星，所述网络设备的第二位置信息为所述终端设备通过预配置的星历信息或网络广播的星历信息获得的。
在一个可能的示例中，所述时隙n和所述第一参数用于所述终端设备通过第一公式计算所述MAC CE的生效时间，所述第一公式为n+TA。
在一个可能的示例中，所述一个或多个程序621还包括用于执行如下操作的指令：向所述终端设备发送所述第一参数。
在这个可能的示例中，所述网络设备通过以下任意一种信令向所述终端设备发送所述第一参数：无线资源控制RRC信令、MAC CE信令、PDCCH信令。
在这个可能的示例中，所述PDCCH信令包括调度所述MAC CE的PDCCH信令，所述第一参数包含在PDCCH信令承载的下行控制信息DCI中。
在一个可能的示例中，所述第一参数为所述终端设备从所述MAC CE中获取的。
在一个可能的示例中，所述时隙n和所述第一参数用于所述终端设备通过第二公式计算所述MAC CE的生效时间，所述第二公式为
Figure PCTCN2020076603-appb-000009
其中，X为所述第一参数，K offset为网络配置或预配置的补偿值，
Figure PCTCN2020076603-appb-000010
表示物理上行控制信道PUCCH子载波配置μ对应的每子帧所包含的时隙个数。
上述主要从各个网元之间交互的角度对本申请实施例的方案进行了介绍。可以理解的是，终端设备和网络设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端设备和网络设备进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件程序模块的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用集成的单元的情况下，图7示出了上述实施例中所涉及的终端设备的一种可能的功能单元组成框图。终端设备700包括：处理单元702和通信单元703。处理单元702用于对终端设备的动作进行控制管理。通信单元703用于支持终端设备与其他设备的通信，例如与图6中示出的网络设备之间的通信。终端设备还可以包括存储单元701，用于存储终端设备的程序代码和数据。
其中，处理单元702可以是处理器或控制器，例如可以是中央处理器(Central Processing Unit，CPU)，通用处理器，数字信号处理器(Digital Signal Processor，DSP)，专用集成电路(Application-Specific Integrated Circuit，ASIC)，现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信单元703可以是通信接口、收发电路等，存储单元701可以是存储器。当处理单元702为处理器，通信单元703为通信接口，存储单元701为存储器时，本申请实施例所涉及的终端设备可以为图5所示的终端设备。
具体实现时，所述处理单元702用于执行如上述方法实施例中由终端设备执行的任一步骤，且在执行诸如发送等数据传输时，可选择的调用所述通信单元703来完成相应操作。下面进行详细说明。
所述处理单元702，用于通过所述通信单元703由物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE；以及用于对所述PDSCH进行解码，当所述解码正确时，在时隙n通过所述通信单元703向所述网络设备发送混合自动重传请求确认HARQ ACK消息；以及用于根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
可以看出，本申请实施例中，终端设备通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE，然后，对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息，并根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。可见，终端设备在接收到MAC CE后，可以根据对PDSCH的解码情况确定发送HARQ ACK消息的时隙n，进而根据第一参数和时隙n确定MAC CE的生效时间，操作简单，有利于在终端设备与网络设备之间的传播时延较长的情况下，提升MAC CE生效时间的准确性和便捷性。
在一个可能的示例中，所述MAC CE至少包含以下MAC CE：辅小区激活或去激活的MAC CE、终端设备特定PDSCH的传输配置指示激活或去激活状态的MAC CE、终端设备特定的物理下行控制信道PDCCH传输配置指示状态的MAC CE。
在一个可能的示例中，所述第一参数为TA，所述处理单元702还用于：获取所述终端设备的第一位置信息和所述网络设备的第二位置信息；以及根据所述第一位置信息和所述第二位置信息计算所述TA。
在这个可能的示例中，所述网络设备为卫星，所述网络设备的第二位置信息为所述终端设备通过预配置的星历信息或网络广播的星历信息获得的。
在一个可能的示例中，在所述根据所述第一参数和所述时隙n计算所述MAC CE的生效时间方面，所述处理单元702具体用于：根据所述第一参数和所述时隙n通过第一公式计算所述MAC CE的生效时间，所述第一公式为n+TA。
在一个可能的示例中，所述第一参数为X，所述处理单元702还用于：通过所述通信单元703接收来自所述网络设备发送的所述第一参数。
在这个可能的示例中，所述第一参数为所述网络设备通过以下任意一种信令发送的：无线资源控制 RRC信令、MAC CE信令、PDCCH信令。
在这个可能的示例中，所述PDCCH信令包括调度所述MAC CE的PDCCH信令，所述第一参数包含在PDCCH信令承载的下行控制信息DCI中。
在一个可能的示例中，所述第一参数为X，所述通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE之后，所述处理单元702还用于：从所述MAC CE中获取所述第一参数。
在一个可能的示例中，在所述根据所述第一参数和所述时隙n计算所述MAC CE生效时间方面，所述处理单元702具体用于：所述终端设备根据所述第一参数和所述时隙n通过第二公式计算所述MAC CE的生效时间，所述第二公式为
Figure PCTCN2020076603-appb-000011
其中，X为所述第一参数，K offset为网络配置或预配置的补偿值，
Figure PCTCN2020076603-appb-000012
表示物理上行控制信道PUCCH子载波配置μ对应的每子帧所包含的时隙个数。
在采用集成的单元的情况下，图8示出了上述实施例中所涉及的网络设备的一种可能的功能单元组成框图。网络设备800包括：处理单元802和通信单元803。所述网络设备800还包括，该处理单元802用于对网络设备的动作进行控制管理。通信单元803用于支持网络设备与其他设备的通信，例如与图5中示出的终端设备之间的通信。网络设备还可以包括存储单元801，用于存储网络设备的程序代码和数据。
其中，处理单元802可以是处理器或控制器，例如可以是中央处理器(Central Processing Unit，CPU)，通用处理器，数字信号处理器(Digital Signal Processor，DSP)，专用集成电路(Application-Specific Integrated Circuit，ASIC)，现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信单元803可以是通信接口、收发电路等，存储单元801可以是存储器。当处理单元802为处理器，通信单元803为通信接口，存储单元801为存储器时，本申请实施例所涉及的网络设备可以为图6所示的网络设备。
具体实现时，所述处理单元802用于执行如上述方法实施例中由网络设备执行的任一步骤，且在执行诸如发送等数据传输时，可选择的调用所述通信单元803来完成相应操作。下面进行详细说明。
所述处理单元802，用于通过所述通信单元803由物理下行共享信道PDSCH向终端设备发送媒体接入控制层的控制单元MAC CE；所述PDSCH用于所述终端设备在对所述PDSCH解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息；其中，所述时隙n和第一参数用于所述终端设备计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
可以看出，本申请实施例中，网络设备通过物理下行共享信道PDSCH向终端设备发送媒体接入控制层的控制单元MAC CE；终端设备在接收到该MAC CE后，对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息，并根据第一参数和所述时隙n计算所述MAC CE生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。可见，终端设备在接收到MAC CE后，可以根据对PDSCH的解码情况确定发送HARQ ACK消息的时隙n，进而根据第一参数和时隙n确定MAC CE的生效时间，操作简单，有利于在终端设备与网络设备之间的传播时延较长的情况下，提升MAC CE生效时间的准确性和便捷性。
在一个可能的示例中，所述MAC CE至少包含以下MAC CE：辅小区激活或去激活的MAC CE、终端设备特定PDSCH的传输配置指示激活或去激活状态的MAC CE、终端设备特定的物理下行控制信道PDCCH传输配置指示状态的MAC CE。
在一个可能的示例中，所述第一参数为定时提前TA，所述TA为所述终端设备通过所述终端设备的第一位置信息和所述网络设备的第二位置信息计算得到的。
在这个可能的示例中，所述网络设备为卫星，所述网络设备的第二位置信息为所述终端设备通过预配置的星历信息或网络广播的星历信息获得的。
在一个可能的示例中，所述时隙n和所述第一参数用于所述终端设备通过第一公式计算所述MAC CE的生效时间，所述第一公式为n+TA。
在一个可能的示例中，所述处理单元802还用于：通过所述通信单元803向所述终端设备发送所述第一参数。
在这个可能的示例中，所述网络设备通过以下任意一种信令向所述终端设备发送所述第一参数：无 线资源控制RRC信令、MAC CE信令、PDCCH信令。
在这个可能的示例中，所述PDCCH信令包括调度所述MAC CE的PDCCH信令，所述第一参数包含在PDCCH信令承载的下行控制信息DCI中。
在一个可能的示例中，所述第一参数为所述终端设备从所述MAC CE中获取的。
在一个可能的示例中，所述时隙n和所述第一参数用于所述终端设备通过第二公式计算所述MAC CE的生效时间，所述第二公式为
Figure PCTCN2020076603-appb-000013
其中，X为所述第一参数，K offset为网络配置或预配置的补偿值，
Figure PCTCN2020076603-appb-000014
表示物理上行控制信道PUCCH子载波配置μ对应的每子帧所包含的时隙个数。
本申请实施例还提供了一种芯片，其中，该芯片包括处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如上述方法实施例中终端设备所描述的部分或全部步骤。
本申请实施例还提供了一种芯片，其中，该芯片包括处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如上述方法实施例中网络设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中终端设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中网络设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括计算机程序，所述计算机程序可操作来使计算机执行如上述方法实施例中终端设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括计算机程序，所述计算机程序可操作来使计算机执行如上述方法实施例中网络设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
本申请实施例所描述的方法或者算法的步骤可以以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read Only Memory，ROM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于接入网设备、目标网络设备或核心网设备中。当然，处理器和存储介质也可以作为分立组件存在于接入网设备、目标网络设备或核心网设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如，固态硬盘(Solid State Disk，SSD))等。
以上所述的具体实施方式，对本申请实施例的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请实施例的具体实施方式而已，并不用于限定本申请实施例的保护范围，凡在本申请实施例的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请实施例的保护范围之内。

Claims (28)

  1. 一种媒体接入控制层控制单元生效时间的确定方法，其特征在于，包括：
    终端设备通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE；
    所述终端设备对所述PDSCH进行解码，当所述解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息；
    所述终端设备根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
  2. 根据权利要求1所述的方法，其特征在于，所述MAC CE至少包含以下MAC CE：辅小区激活或去激活的MAC CE、终端设备特定PDSCH的传输配置指示激活或去激活状态的MAC CE、终端设备特定的物理下行控制信道PDCCH传输配置指示状态的MAC CE。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一参数为TA，所述方法还包括：
    所述终端设备获取所述终端设备的第一位置信息和所述网络设备的第二位置信息；
    所述终端设备根据所述第一位置信息和所述第二位置信息计算所述TA。
  4. 根据权利要求3所述的方法，其特征在于，所述网络设备为卫星，所述网络设备的第二位置信息为所述终端设备通过预配置的星历信息或网络广播的星历信息获得的。
  5. 根据权利要求3所述的方法，其特征在于，所述终端设备根据第一参数和所述时隙n计算所述MAC CE的生效时间，包括：
    所述终端设备根据所述第一参数和所述时隙n通过第一公式计算所述MAC CE的生效时间，所述第一公式为n+TA。
  6. 根据权利要求1或2所述的方法，其特征在于，所述第一参数为X，所述方法还包括：
    所述终端设备接收来自所述网络设备发送的所述第一参数。
  7. 根据权利要求6所述的方法，其特征在于，所述第一参数为所述网络设备通过以下任意一种信令发送的：无线资源控制RRC信令、MAC CE信令、PDCCH信令。
  8. 根据权利要求7所述的方法，其特征在于，所述PDCCH信令包括调度所述MAC CE的PDCCH信令，所述第一参数包含在PDCCH信令承载的下行控制信息DCI中。
  9. 根据权利要求1或2所述的方法，其特征在于，所述第一参数为X，所述终端设备通过物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE之后，所述方法还包括：
    所述终端设备从所述MAC CE中获取所述第一参数。
  10. 根据权利要求6-9任一项所述的方法，其特征在于，所述终端设备根据第一参数和所述时隙n计算所述MAC CE的生效时间，包括：
    所述终端设备根据所述第一参数和所述时隙n通过第二公式计算所述MAC CE的生效时间，所述第二公式为
    Figure PCTCN2020076603-appb-100001
    其中，X为所述第一参数，K offset为网络配置或预配置的补偿值，
    Figure PCTCN2020076603-appb-100002
    表示物理上行控制信道PUCCH子载波配置μ对应的每子帧所包含的时隙个数。
  11. 一种媒体接入控制层控制单元生效时间的确定方法，其特征在于，包括：
    网络设备通过物理下行共享信道PDSCH向终端设备发送媒体接入控制层的控制单元MAC CE；所述PDSCH用于所述终端设备在对所述PDSCH解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息；其中，所述时隙n和第一参数用于所述终端设备计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
  12. 根据权利要求11所述的方法，其特征在于，所述MAC CE至少包含以下MAC CE：辅小区激活或去激活的MAC CE、终端设备特定PDSCH的传输配置指示激活或去激活状态的MAC CE、终端设备特定的物理下行控制信道PDCCH传输配置指示状态的MAC CE。
  13. 根据权利要求11或12所述的方法，其特征在于，所述第一参数为定时提前TA，所述TA为所述终端设备通过所述终端设备的第一位置信息和所述网络设备的第二位置信息计算得到的。
  14. 根据权利要求13所述的方法，其特征在于，所述网络设备为卫星，所述网络设备的第二位置信息为所述终端设备通过预配置的星历信息或网络广播的星历信息获得的。
  15. 根据权利要求13所述的方法，其特征在于，所述时隙n和所述第一参数用于所述终端设备通过 第一公式计算所述MAC CE的生效时间，所述第一公式为n+TA。
  16. 根据权利要求11或12所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送所述第一参数。
  17. 根据权利要求16所述的方法，其特征在于，所述网络设备通过以下任意一种信令向所述终端设备发送所述第一参数：无线资源控制RRC信令、MAC CE信令、PDCCH信令。
  18. 根据权利要求17所述的方法，其特征在于，所述PDCCH信令包括调度所述MAC CE的PDCCH信令，所述第一参数包含在PDCCH信令承载的下行控制信息DCI中。
  19. 根据权利要求11或12所述的方法，其特征在于，所述第一参数为所述终端设备从所述MAC CE中获取的。
  20. 根据权利要求16-19任一项所述的方法，其特征在于，所述时隙n和所述第一参数用于所述终端设备通过第二公式计算所述MAC CE的生效时间，所述第二公式为
    Figure PCTCN2020076603-appb-100003
    其中，X为所述第一参数，K offset为网络配置或预配置的补偿值，
    Figure PCTCN2020076603-appb-100004
    表示物理上行控制信道PUCCH子载波配置μ对应的每子帧所包含的时隙个数。
  21. 一种终端设备，其特征在于，所述终端设备包括处理单元和通信单元，其中，
    所述处理单元，用于通过所述通信单元由物理下行共享信道PDSCH接收来自网络设备发送的媒体接入控制层的控制单元MAC CE；以及用于对所述PDSCH进行解码，当所述解码正确时，在时隙n通过所述通信单元向所述网络设备发送混合自动重传请求确认HARQ ACK消息；以及用于根据第一参数和所述时隙n计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
  22. 一种网络设备，其特征在于，所述网络设备包括处理单元和通信单元，其中，
    所述处理单元，用于通过所述通信单元由物理下行共享信道PDSCH向终端设备发送媒体接入控制层的控制单元MAC CE；所述PDSCH用于所述终端设备在对所述PDSCH解码正确时，在时隙n向所述网络设备发送混合自动重传请求确认HARQ ACK消息；其中，所述时隙n和第一参数用于所述终端设备计算所述MAC CE的生效时间，所述第一参数包括定时提前TA和/或X，所述X是由所述网络设备确定并指示给所述终端设备的。
  23. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1-10中任一项所述的方法。
  24. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求11-20中任一项所述的方法。
  25. 一种终端设备，其特征在于，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求1-10任一项所述的方法中的步骤的指令。
  26. 一种网络设备，其特征在于，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求11-20任一项所述的方法中的步骤的指令。
  27. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求1-10任一项所述的方法。
  28. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求11-20任一项所述的方法。
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