WO2021163889A1 - 通信方法、装置及设备 - Google Patents

通信方法、装置及设备 Download PDF

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Publication number
WO2021163889A1
WO2021163889A1 PCT/CN2020/075742 CN2020075742W WO2021163889A1 WO 2021163889 A1 WO2021163889 A1 WO 2021163889A1 CN 2020075742 W CN2020075742 W CN 2020075742W WO 2021163889 A1 WO2021163889 A1 WO 2021163889A1
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WO
WIPO (PCT)
Prior art keywords
information
reporting
terminal device
indicate
value
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Application number
PCT/CN2020/075742
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English (en)
French (fr)
Inventor
李海涛
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2020/075742 priority Critical patent/WO2021163889A1/zh
Priority to EP20920682.0A priority patent/EP4109984A4/en
Priority to CN202080081572.0A priority patent/CN114747262A/zh
Publication of WO2021163889A1 publication Critical patent/WO2021163889A1/zh
Priority to US17/888,860 priority patent/US20230007608A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18519—Operations control, administration or maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]

Definitions

  • This application relates to the field of communication technology, and in particular to a communication method, device and equipment.
  • Non-terrestrial communication network refers to a communication network between terminal equipment and satellites (also called network equipment).
  • the network equipment In the uplink transmission, the network equipment requires that the uplink signals from different terminal equipments at the same time arrive at the network equipment to be basically aligned in time. For example, for a terminal device that is far from the network device, because it has a larger transmission delay, it is necessary to send uplink data earlier than the terminal device that is closer to the network device. Therefore, the network device determines the timing advance (TA) value of each terminal device by measuring the uplink transmission of the terminal device, and sends the TA value to the terminal device, so that the terminal device adjusts the transmission of uplink data according to the TA value Time, so as to control the alignment of the time when the uplink signals from different terminal devices arrive at the network device.
  • TA timing advance
  • the network device may not be able to control the TA value update of the terminal device in real time.
  • the TA value of the terminal equipment is not updated in time, which leads to frequent occurrence of uplink out-of-synchronization.
  • the embodiments of the present application provide a communication method, device, and equipment to avoid frequent occurrence of uplink out-of-synchronization.
  • an embodiment of the present application provides a communication method, including:
  • the terminal device receives configuration information from the network device
  • the terminal device sends timing advance TA information to the network device according to the configuration information, where the TA information is used to indicate the TA value determined by the terminal device.
  • an embodiment of the present application provides a communication method, including:
  • the network device sends configuration information to the terminal device
  • the network device receives timing advance TA information from the terminal device, where the TA information is used to indicate the TA value determined by the terminal device.
  • an embodiment of the present application provides a communication device, including:
  • the receiving module is used to receive configuration information from the network device
  • the sending module is configured to send timing advance TA information to the network device according to the configuration information, where the TA information is used to indicate the TA value determined by the terminal device.
  • an embodiment of the present application provides a communication device, including:
  • the sending module is used to send configuration information to the terminal device
  • the receiving module is configured to receive timing advance TA information from the terminal device, where the TA information is used to indicate the TA value determined by the terminal device.
  • an embodiment of the present application provides a terminal device, including: a transceiver, a processor, and a memory;
  • the memory stores computer execution instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the communication method according to any one of the foregoing first aspects.
  • an embodiment of the present application provides a network device, including: a transceiver, a processor, and a memory;
  • the memory stores computer execution instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the communication method according to any one of the above second aspects.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the foregoing The communication method according to any one of the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer-executable instruction, and when the computer-executable instruction is executed by a processor, it is used to implement the foregoing The communication method according to any one of the second aspect.
  • the terminal device receives configuration information from the network device, and sends TA information to the network device according to the configuration information.
  • the real-time update and adjustment of the TA value of the terminal device is ensured, the frequent occurrence of uplink out-of-synchronization is avoided, and the consumption of signaling overhead and random access resources due to frequent uplink out-of-synchronization is avoided.
  • the network device can track the TA value update status of the terminal device in real time, which is beneficial to the uplink scheduling of the terminal device and reduces the scheduling delay and the service transmission delay.
  • FIG. 1 is a schematic diagram of timing advance provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of the architecture of a communication system provided by an embodiment of this application.
  • FIG. 3 is a schematic diagram of the architecture of another communication system provided by an embodiment of this application.
  • FIG. 5 is a schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of a sequence of periodically reporting TA information provided by an embodiment of the application.
  • FIG. 7 is a schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram of a sequence of non-periodically reporting TA information provided by an embodiment of the application.
  • FIG. 9 is a schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 10 is a schematic diagram of a timing sequence for semi-persistently reporting TA information through PUCCH resources according to an embodiment of the application;
  • FIG. 11 is a schematic diagram of a sequence of semi-persistent reporting of TA information through PUSCH resources according to an embodiment of the application;
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 14 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 15 is a schematic structural diagram of a terminal device provided by an embodiment of the application.
  • FIG. 16 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • Terminal equipment usually has a wireless transceiver function, terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons, etc.) And satellite class).
  • the terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial Wireless terminals in control (industrial control), vehicle-mounted terminal equipment, wireless terminals in unmanned driving (selfdriving), wireless terminal equipment in remote medical, wireless terminal equipment in smart grid (smart grid), transportation Wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, wearable terminal equipment, etc.
  • VR virtual reality
  • AR augmented reality
  • industrial Wireless terminals in control industrial control
  • vehicle-mounted terminal equipment wireless terminals in unmanned driving (selfdriving)
  • wireless terminal equipment in remote medical wireless terminal equipment in smart grid (smart grid)
  • transportation Wireless terminal equipment in transportation safety wireless terminal equipment in smart city, wireless terminal equipment in smart home, wearable terminal equipment, etc.
  • the terminal equipment involved in the embodiments of the present application may also be referred to as a terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station , Remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • the terminal device can also be fixed or mobile.
  • Network equipment usually has a wireless transceiver function, the network equipment may have mobile characteristics, for example, the network equipment may be a mobile device.
  • the network equipment can be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, or a high elliptical orbit (High Elliptical Orbit, HEO). ) Satellite etc.
  • LEO low earth orbit
  • MEO medium earth orbit
  • GEO geostationary earth orbit
  • HEO high elliptical orbit
  • the orbital height range of LEO satellites is usually 500km to 1500km, and the orbital period (the period of rotation around the earth) is about 1.5 hours to 2 hours.
  • the signal propagation delay of single-hop communication between users is about 20ms.
  • the single-hop communication delay between users refers to the transmission delay between the terminal device and the network device, or the delay between the network device and the transmission device.
  • the maximum visible time of the satellite is about 20 minutes.
  • the maximum visible time refers to the longest time that the beam of the satellite covers a certain area of the ground.
  • LEO satellites move relative to the ground. As the satellite moves, the ground area covered by it is also Changing.
  • the signal propagation distance of the LEO satellite is short, the link loss is small, and the requirement for the transmission power of the terminal equipment is not high.
  • the orbital height of GEO satellites is usually 35786km, and the orbital period is 24 hours.
  • the signal propagation delay of single-hop communication between users is about 250ms.
  • satellites can use multiple beams to cover the ground.
  • a satellite can form dozens or hundreds of beams to cover the ground, and one beam can cover dozens to hundreds of kilometers in diameter.
  • Ground area can also be a base station set up in land, water, etc., for example, the network equipment can be a next generation NodeB (gNB) or a next generation-evolved NodeB (ng-eNB) .
  • gNB provides UE with new radio (NR) user plane functions and control plane functions
  • ng-eNB provides UE with evolved universal terrestrial radio access (E-UTRA) user plane Functions and control plane functions.
  • NR new radio
  • E-UTRA evolved universal terrestrial radio access
  • the network equipment can also be the base transceiver station (BTS) in the GSM system or the CDMA system, the base station (nodeB, NB) in the WCDMA system, or the evolutional node B (evolutional node B) in the LTE system. eNB or eNodeB).
  • BTS base transceiver station
  • NB base station
  • evolutional node B evolutional node B
  • the network equipment may also be relay stations, access points, in-vehicle equipment, wearable equipment, and network side equipment in the network after 5G or network equipment in the future evolved PLMN network, road site unit (RSU) )Wait.
  • RSU road site unit
  • Uplink synchronization In the same cell, the uplink signals sent by terminal equipment in different locations using the same time slot resource arrive at the network equipment at the same time, that is, the signals from different terminal equipment in the same time slot arrive at the network equipment to maintain synchronization.
  • the purpose is to reduce the uplink multiple access interference and multipath interference between different terminal devices in the cell, and to increase the cell capacity and cell radius.
  • Timing advance Because an important feature of uplink transmission is orthogonal multiple access in time and frequency for different terminal devices, that is, the uplink transmissions of different terminal devices from the same cell do not interfere with each other.
  • network equipment requires signals from different terminal equipment with different frequency domain resources at the same time to arrive at the network equipment to be basically aligned in time.
  • the communication system for example, the NR system
  • the uplink clock and downlink clock on the network equipment side are the same, but there is an offset between the uplink clock and the downlink clock on the terminal equipment side, and different terminal equipment has different uplink timing advances (which can be called TA amounts, or TAs). value).
  • the network device can control the time when the uplink signals from different terminal devices arrive at the network device. For the terminal equipment far away from the network equipment, due to the larger transmission delay, it is necessary to send the uplink data earlier than the terminal equipment closer to the network equipment.
  • FIG. 1 is a schematic diagram of timing advance provided by an embodiment of the application. Among them, (a) in FIG. 1 illustrates the situation without timing advance, and (b) in FIG. 1 illustrates the situation with timing advance.
  • the downlink signal is received by the terminal device 1 closer to the network device after the transmission time Tp1, that is, the terminal device 1 receives it at time Tp1 To the downstream signal.
  • the terminal device 1 uses this time as the uplink timing and sends an uplink signal to the network device.
  • the uplink signal sent by the terminal device 1 arrives at the network device after the transmission time Tp1, that is, the uplink signal sent by the terminal device 1 will reach the network device at the time 2Tp1.
  • the downlink signal sent by the network device at time 0 is received by the terminal device 2 far away from the network device after the transmission time Tp2, that is, the terminal device 2 receives the downlink signal at the time Tp2.
  • the terminal device 2 uses this time as the uplink timing and sends an uplink signal to the network device.
  • the uplink signal sent by the terminal device 2 reaches the network device after the transmission time Tp2, that is, the uplink signal sent by the terminal device 2 will reach the network device at the time 2Tp2. It can be seen that the time when the uplink signal sent by the terminal device 1 and the terminal device 2 reach the network device is not aligned.
  • the downlink signal is received by the terminal device 1 closer to the network device after the transmission time Tp1, that is, the terminal device 1 receives it at time Tp1 To the downstream signal.
  • the terminal device 1 advances the uplink timing (the advance time is 2Tp1), and sends an uplink signal to the network device.
  • the uplink signal sent by the terminal device 1 reaches the network device after the transmission time Tp1, that is, the uplink signal sent by the terminal device 1 will reach the network device at time 0.
  • the downlink signal sent by the network device at time 0 is received by the terminal device 2 far away from the network device after the transmission time Tp2, that is, the terminal device 2 receives the downlink signal at the time Tp2.
  • the terminal device 2 advances the uplink timing (the amount of advancement is 2Tp2), and sends an uplink signal to the network device.
  • the uplink signal sent by the terminal device 2 arrives at the network device after the transmission time Tp2, that is, the uplink signal sent by the terminal device 2 will reach the network device at time 0. It can be seen that the time when the uplink signal sent by the terminal device 1 and the terminal device 2 reach the network device is aligned.
  • Figure 1 (a) points out the impact of not performing uplink timing advance. It can be seen from Figure 1(b) that the timing of the uplink subframe and the downlink subframe on the network device side are the same, but there is an offset between the timing of the uplink subframe and the downlink subframe of the terminal device, that is, there is an offset between the uplink subframe and the downlink subframe timing of the terminal device.
  • Uplink timing advance TA is an offset between the timing of the uplink subframe and the downlink subframe of the terminal device.
  • the TA value of the terminal device is controlled by the network device.
  • the network device determines the TA value of each terminal device by measuring the uplink transmission of the terminal device. As long as the terminal equipment has uplink transmission, the network equipment can be used to measure the TA value. After the network device determines the TA value for the terminal device, the TA value is sent to the terminal device through a TA command (timing advance command).
  • the network device sends TA commands to the terminal device in the following two ways.
  • Initial TA In the random access process, the network device determines the TA value by measuring the random access preamble sent by the terminal device, and uses the TA command field in the random access response (random access response, RAR) Send to the terminal device.
  • RAR random access response
  • Adjustment of TA in RRC connected state Although the terminal device and the network device have achieved uplink synchronization during the random access process, the timing of the uplink signal reaching the network device may change over time. For example, the following situations: (a) The transmission delay between terminal equipment and network equipment in high-speed movement will continue to change. (b) The current transmission path disappears, and the new transmission path is switched. For example, in a city with dense buildings, this situation is likely to happen when the terminal device moves to the corner of the building. (c) The crystal oscillator of the terminal device is offset. Long-term accumulation of offset may cause uplink timing errors. (d) Doppler shift caused by the movement of the terminal equipment, etc.
  • the terminal equipment needs to continuously update its uplink TA value to maintain uplink synchronization. If the TA value of a terminal device needs to be corrected, the network device will send a TA command to the terminal device, requesting it to adjust the uplink TA value.
  • the TA command is sent to the terminal device through a medium access control (medium access control, MAC) control unit (control element, CE).
  • medium access control medium access control, MAC
  • CE control element
  • the network device configures a timer (called timeAlignmentTimer) for the terminal device through RRC signaling.
  • the terminal device can use this timer to determine whether the uplink is synchronized.
  • the terminal device receives the TA command (from RAR or MAC CE)
  • the terminal device will start or restart the timer.
  • the terminal device considers that the uplink is synchronized, that is, the TA value maintained by the terminal device is valid. If the timer expires, the terminal device considers that the uplink is out of synchronization. If the terminal device has uplink data to send, it needs to trigger random access to obtain the TA value again. In other words, when the timer expires, the terminal device can only send the preamble in the uplink.
  • the TA value between the terminal equipment and the network equipment changes slowly, and the above-mentioned related technology can maintain the uplink synchronization of the terminal equipment.
  • the TA value between the terminal device and the network device in the NTN network (especially in the LEO scenario) changes faster, and the TA value changes more widely.
  • the network equipment must measure the uplink transmission of the terminal equipment more frequently to update the TA value of the terminal equipment.
  • the TA value of the terminal device is not updated in time, which leads to frequent occurrence of uplink out-of-synchronization. Furthermore, when the terminal device has uplink data to send, it needs to perform the random access process again, which causes a large signaling overhead and consumption of random access resources.
  • an embodiment of the present application proposes a communication method.
  • the architecture of the communication system in the present application will be described with reference to FIGS. 2 to 3.
  • FIG. 2 is a schematic diagram of the architecture of a communication system provided by an embodiment of the application. Please refer to FIG. 2, including a terminal device 101 and a satellite 102, and wireless communication can be performed between the terminal device 101 and the satellite 102.
  • the network formed between the terminal device 101 and the satellite 102 may also be referred to as NTN.
  • the satellite 102 has the function of a base station, and the terminal device 101 and the satellite 102 can communicate directly. Under the system architecture, the satellite 102 can be referred to as a network device.
  • FIG. 3 is a schematic structural diagram of another communication system provided by an embodiment of this application.
  • FIG. 3 which includes a terminal device 201, a satellite 202, and a base station 203.
  • the terminal device 201 and the satellite 202 can communicate wirelessly, and the satellite 202 and the base station 203 can communicate.
  • the network formed between the terminal device 201, the satellite 202 and the base station 203 may also be referred to as NTN.
  • the satellite 202 does not have the function of a base station, and the communication between the terminal device 201 and the base station 203 needs to be relayed by the satellite 202.
  • the base station 203 can be referred to as a network device.
  • the terminal device determines and adjusts the TA value based on its own positioning capability, and the terminal device reports the determined TA value to the network device.
  • the network device can track the TA value update status of the terminal device in real time, which is beneficial to the uplink scheduling of the terminal device and reduces the scheduling delay and the service transmission delay.
  • FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of this application. As shown in Figure 4, the method of this embodiment includes:
  • S401 The network device sends configuration information to the terminal device.
  • the configuration information may indicate the information required by the terminal device to report the TA information to the network device.
  • the configuration information is used to indicate the reporting mode of TA information.
  • the reporting method can be any of the following: periodic reporting, aperiodic reporting, and semi-continuous reporting.
  • periodic reporting means that the terminal device reports TA information to the network device in a certain period.
  • the terminal device reports TA information to the network device at a preset time interval.
  • the preset time interval may be indicated by the network device in the configuration information, may also be determined autonomously by the terminal device, or may be agreed upon in advance by the network device and the terminal device.
  • Aperiodic reporting means that the time when the terminal device reports the TA information to the network device is not periodic.
  • the terminal device may report TA information to the terminal device according to a preset reporting trigger condition. Whenever the reporting trigger condition is met, the terminal device reports TA information to the network device.
  • the reporting trigger condition may be indicated by the network device in the configuration information, may also be determined autonomously by the terminal device, or may be agreed in advance by the network device and the terminal device.
  • the network device may instruct the terminal device to report the TA information once through the instruction information every time it needs to learn the TA information of the terminal device.
  • Semi-continuous reporting means that the terminal device periodically reports TA information to the network device within a certain period of time.
  • the start time and end time of the time period may be indicated by the network device in the configuration information, may also be determined autonomously by the terminal device, or may be agreed upon in advance by the network device and the terminal device. Alternatively, the network device may also indicate the start time and the end time to the terminal device through instruction information as needed.
  • the configuration information may indicate a physical channel carrying TA information.
  • the physical channel may be a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH).
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink control channel
  • the configuration information may also indicate the reporting mode of the TA information and the physical channel carrying the TA information at the same time.
  • the configuration information indicates the above two types of information at the same time, the above two types of information may be displayed or implicitly indicated. For example, if the configuration information indicates that the reporting mode is periodic reporting, it implicitly indicates that the physical channel carrying TA information is PUCCH. If the configuration information indicates that the reporting mode is aperiodic reporting, it implicitly indicates that the physical channel carrying the TA information is the PUSCH.
  • the configuration information is used to indicate any of the following situations:
  • the reporting method is periodic reporting, and the physical channel carrying TA information is PUCCH;
  • Case 2 The reporting method is aperiodic reporting, and the physical channel carrying TA information is PUSCH;
  • Case 3 The reporting method is semi-continuous reporting, and the physical channel carrying TA information is PUCCH;
  • Case 4 The reporting method is semi-persistent reporting, and the physical channel carrying TA information is PUSCH.
  • the configuration information may be RRC signaling. That is, the network device carries the configuration information in RRC signaling and sends it to the terminal device.
  • the RRC signaling may be RRC reconfiguration signaling and the like.
  • the network device may use multiple methods to indicate the reporting method in the configuration information, which is not limited in this embodiment.
  • the following describes several possible examples.
  • the configuration information includes the first information domain.
  • the value of the information in the first information field is used to indicate the reporting mode. For example, if the value of the information in the first information field is 1, it means that the reporting method is periodic reporting. If the value of the information in the first information field is 2, it means that the reporting method is aperiodic reporting. If the value of the information in the first information field is 3, it means that the reporting method is semi-continuous reporting.
  • the value of the information in the first information field is used to indicate the above-mentioned different situations. For example, if the value of the information in the first information field is 1, it means that the reporting method is periodic reporting, and the physical channel carrying the TA is PUCCH (case 1). If the value of the information in the first information field is 2, it means that the reporting method is aperiodic reporting, and the physical channel carrying the TA is PUSCH (case 2). If the value of the information in the first information field is 3, it means that the reporting method is semi-persistent reporting, and the physical channel carrying the TA is PUCCH (case 3). If the value of the information in the first information field is 4, it means that the reporting method is semi-persistent reporting, and the physical channel carrying the TA is PUSCH (case 4).
  • different reporting methods correspond to different information fields in the configuration information. For example, periodic reporting corresponds to information domain 1, non-periodical reporting corresponds to information domain 2, and semi-persistent reporting corresponds to information domain 3. If there is information field 1 in the configuration information, it means that the reporting method is periodic reporting. If there is information field 2 in the configuration information, it means that the reporting method is aperiodic reporting. If there is information field 3 in the configuration information, it means that the reporting method is semi-continuous reporting.
  • case 1 corresponds to information domain 1
  • case 2 corresponds to information domain 2
  • case 3 corresponds to information domain 3
  • case 4 corresponds to information domain 4. If there is information field 1 in the configuration information, it indicates case 1. If there is information field 2 in the configuration information, then case 2 is indicated. If there is information field 3 in the configuration information, then case 3 is indicated. If there is information field 4 in the configuration information, then case 4 is indicated.
  • the terminal device sends TA information to the network device according to the configuration information.
  • the TA information is used to indicate the TA value determined by the terminal device.
  • the terminal device has a self-positioning capability.
  • the terminal device can determine the TA values corresponding to different moments based on the self-positioning capability, and continuously adjust the sending moment of the uplink data according to the determined TA value.
  • the terminal device may determine the TA value according to its own location information and the location information of the network device. For example, the TA value is determined according to the distance between the terminal device and the network device. In an example, the terminal device may calculate the TA value according to the distance between itself and the network device at preset intervals. The embodiment of the present application does not specifically limit the specific manner in which the terminal device calculates the TA value.
  • the location information of the network device may change all the time, and the operating trajectory of the network device is consistent with that of the satellite. Therefore, the location information of the network device can be determined by the ephemeris information.
  • the ephemeris information can also be called ephemeris information, which refers to a satellite orbit parameter table, that is, a list of data to indicate the predetermined location of the satellite at regular intervals. Therefore, the terminal device can determine the location information of the network device at different times according to the ephemeris information.
  • the terminal device determines and adjusts the TA value based on its own location information and the location information of the network device, which ensures the real-time update and adjustment of the TA value of the terminal device, and avoids frequent occurrences of uplink out-of-synchronization. Avoid the consumption of signaling overhead and random access resources due to frequent uplink out-of-synchronization.
  • the terminal device sends the TA information to the network device in a reporting manner of TA information indicated by the configuration information. That is, when the reporting mode indicated by the configuration information is periodic reporting, the terminal device periodically sends TA information to the network device. When the reporting mode indicated by the configuration information is aperiodic reporting, the terminal device aperiodically sends TA information to the network device. When the reporting mode indicated by the configuration information is semi-continuous reporting, the terminal device semi-continuously sends TA information to the network device.
  • the terminal device sends the TA information to the network device through the physical channel that carries the TA information indicated by the configuration information.
  • the terminal device sends the TA information to the network device through the PUCCH.
  • the terminal device sends the TA information to the network device through the PUSCH.
  • the TA information reported by the terminal device to the network device each time indicates the TA value currently determined by the terminal device.
  • the network device can learn the latest TA value of the terminal device according to the received TA information, so as to track the change of the TA value of the terminal device, which is conducive to the subsequent dynamic uplink scheduling of the terminal device by the network device, so that the network device can change the scheduling time. Close to the real-time TA value of the terminal device instead of always using the maximum TA value supported by the system, this can reduce the scheduling delay and thereby reduce the service transmission delay.
  • the TA information reported by the terminal device to the network device includes an index corresponding to the TA value.
  • the TA index can range from 0 to N. Different indexes correspond to different TA values, and the TA value corresponding to each index can be a positive value or a negative value.
  • the terminal device calculates the TA value based on its own positioning capability, it determines the index corresponding to the TA value by querying the index table, and sends the index to the network device. It can be understood that by sending the index corresponding to the TA value, the length of the TA information can be reduced.
  • the TA information may include an index corresponding to the first TA value.
  • the first TA value is the real-time TA value determined by the terminal device, that is, the TA value newly calculated by the terminal device. In other words, what the terminal device reports to the network device is the index corresponding to the real-time absolute TA value.
  • the TA information may include an index corresponding to the second TA value.
  • the second TA value is the change amount of the real-time TA value determined by the terminal device relative to the TA value reported last time.
  • what the terminal device reports to the network device is the index corresponding to the incremental TA value. It can be understood that the index corresponding to the reported incremental TA value and the index corresponding to the reported absolute TA value can further reduce the length of the TA information.
  • a terminal device receives configuration information from a network device, and sends TA information to the network device according to the configuration information.
  • the real-time update and adjustment of the TA value of the terminal device are ensured, the frequent occurrence of uplink out-of-synchronization is avoided, and the consumption of signaling overhead and random access resources due to frequent uplink out-of-synchronization is avoided.
  • the network device can track the TA value update status of the terminal device in real time, which is beneficial to the uplink scheduling of the terminal device and reduces the scheduling delay and the service transmission delay.
  • FIG. 5 is a schematic flowchart of another communication method provided by an embodiment of this application. This embodiment exemplifies the process of periodically reporting TA information. As shown in FIG. 5, the method of this embodiment may include:
  • the network device sends configuration information to the terminal device, and the configuration information indicates that the reporting mode of TA information is periodic reporting.
  • periodic TA information may be carried in PUCCH resources.
  • the configuration information may include at least one of the following information:
  • Time information used to indicate the time point of reporting TA information periodically
  • Resource information used to indicate PUCCH resources used to report TA information.
  • the terminal device can determine the time point at which TA information is periodically reported each time, and the PUCCH resources occupied by each TA information report.
  • the network device can receive TA information at the corresponding time point and the corresponding PUCCH resource.
  • the time information may include at least one of the following information: period information, used to indicate the reporting period of TA information; and offset information, used to indicate the time slot offset in each period.
  • period information used to indicate the reporting period of TA information
  • offset information used to indicate the time slot offset in each period.
  • the configuration information may also include: at least one bandwidth part (BWP) configured for the terminal device and the PUCCH resource corresponding to each BWP. Further, the configuration information may also indicate the PUCCH resource used for reporting TA information corresponding to each BWP.
  • BWP bandwidth part
  • periodic TA information may also be carried in PUSCH resources.
  • the PUSCH resource may be a resource dynamically scheduled by the network device. For example, the network device periodically schedules the PUSCH resource, so that the terminal device can periodically report TA information through the PUSCH resource.
  • the PUSCH resource may also be a resource pre-configured by the network device for the terminal device (for example, a configured authorized CG resource), and the terminal device periodically reports TA information on the pre-configured resource.
  • the terminal device periodically sends TA information to the network device.
  • the terminal device After the terminal device receives the configuration information, if the reporting mode indicated by the configuration information is periodic reporting, the terminal device starts to periodically send TA information to the network device.
  • the terminal device periodically sends TA information to the network device through the PUCCH according to the time information and PUCCH resource information indicated by the configuration information. For example, the terminal device determines the time point for reporting TA information each time according to the time information, and sends the TA information on the PUCCH resource used for reporting TA information corresponding to the currently activated BWP each time it reports the TA information.
  • FIG. 6 is a schematic diagram of a sequence of periodically reporting TA information according to an embodiment of the application.
  • the rectangular box represents the PUCCH resource configured by the network device for the terminal device to periodically report TA information
  • the upward arrow indicates that the terminal device sends TA information on the PUCCH resource
  • the downward arrow indicates that the terminal receives PDSCH.
  • the terminal device receives configuration information through the PDSCH, and the configuration information indicates that TA information is reported periodically. Therefore, after receiving the configuration information, the terminal device starts to periodically send TA information to the network device through the pre-configured PUCCH resource for reporting TA information. Correspondingly, the network device can periodically receive TA information from the corresponding PUCCH resource. It can be seen from FIG. 6 that after the terminal device receives the configuration information for indicating periodic reporting of TA information, it can start periodic TA information reporting without waiting for other instructions.
  • the terminal device periodically reports TA information to the network device, so that the network device can learn about the change of the TA value of the terminal device in time, which is conducive to the subsequent dynamic uplink scheduling of the terminal device by the network device, so that the network device is scheduling Time is closer to the real-time TA value of the terminal equipment instead of always using the maximum TA value supported by the system, which can reduce the scheduling delay and thus reduce the service transmission delay.
  • FIG. 7 is a schematic flowchart of another communication method provided by an embodiment of this application. This embodiment exemplifies the process of non-periodically reporting TA information. As shown in FIG. 7, the method of this embodiment may include:
  • the network device sends configuration information to the terminal device, and the configuration information indicates that the TA information reporting mode is aperiodic reporting.
  • the network device sends first indication information to the terminal device, where the first indication information is used to indicate whether to send TA information.
  • the terminal device After the terminal device receives the configuration information, it is determined according to the configuration information that a non-periodical reporting method is needed. Then the terminal device will not immediately report the TA information to the network device, but will wait for the first indication information sent by the network device. Correspondingly, the network device will send the first indication information to the terminal device according to its own needs when it needs to know the TA information of the terminal device to instruct the terminal device to report the current TA information.
  • the first indication information may include a target resource for reporting TA information, so as to instruct the terminal device to send the TA information on the target resource.
  • the first indication information may be carried in the MAC CE, or carried in the PDCCH.
  • the target resource can be any resource used for uplink transmission.
  • the target resource can be a PUCCH resource or a PUSCH resource.
  • the target resource is a PUSCH resource
  • the first indication information is carried in a PDCCH used to schedule the PUSCH resource.
  • the first indication information may be DCI in the PDCCH information.
  • the network device dynamically schedules PUSCH resources in the PDCCH information (for example, indicates the allocation of PUSCH resources through DCI).
  • the network device also indicates in the PDCCH information whether to report TA information in the PUSCH resource scheduled this time. For example, when there is a second information field in the PDCCH information, or when the information in the second information field takes a first preset value (for example, 1), it is instructed to send TA information on the PUSCH resource scheduled this time.
  • the second information field does not exist in the PDCCH information, or when the information in the second information field takes a second preset value (for example, 0), it indicates that no TA information is sent on the PUSCH resource scheduled this time.
  • the target resource is PUCCH resource.
  • the network device pre-configures the PUCCH resource for reporting TA information for the terminal device.
  • the network device needs to know the TA information of the terminal device, it sends the first indication information to the terminal device to instruct the terminal device to send the TA information on the pre-configured PUCCH resource.
  • the terminal device receives PDCCH information for scheduling PUSCH resources, and if the PDCCH information also indicates that TA information is sent on the PUSCH resource scheduled this time, the terminal device sends the TA information on the PUSCH resource scheduled this time.
  • the terminal device when the terminal device sends TA information through PUSCH resources, the TA information may be carried in the MAC CE of the PUSCH.
  • the terminal device when the TA information is reported in the aperiodic reporting manner, the terminal device reports the TA information according to the instructions of the first indication information. That is, when the first indication information indicates to send the TA information, the terminal device only reports the TA information to the network device once.
  • FIG. 8 is a schematic diagram of a sequence of non-periodically reporting TA information provided by an embodiment of the application. As shown in FIG. 8, the downward solid arrow indicates that the terminal device receives the PDSCH, the downward dashed arrow indicates that the terminal device receives the PDCCH, and the upward arrow indicates that the terminal device sends the PUSCH.
  • the terminal device receives configuration information through the PDSCH, and the configuration information indicates that TA information is reported non-periodically.
  • the terminal device receives the PDCCH used to schedule the PUSCH, and the PDCCH does not indicate to report TA information. Therefore, the terminal device does not report the TA information in the PUSCH scheduled this time.
  • the terminal device receives the PDCCH used to schedule the PUSCH, and the PDCCH indicates the reporting of TA information. Therefore, the terminal device reports the TA information in the PUSCH scheduled this time.
  • the terminal device receives the PDCCH used to schedule the PUSCH, and the PDCCH indicates to report TA information. Therefore, the terminal device reports the TA information in the PUSCH scheduled this time.
  • the terminal device uses a non-periodical reporting method to report TA information to the network device, so that the network device can know the TA value change of the terminal device in time when needed, which is conducive to the subsequent dynamic uplink scheduling of the terminal device by the network device , Which makes the network equipment closer to the real-time TA value of the terminal equipment during scheduling instead of always using the maximum TA value supported by the system, which can reduce the scheduling delay and thereby reduce the service transmission delay. Further, since the network device can send the first indication information to the terminal device when it needs to know the TA information of the terminal device according to its own needs, the signaling overhead can be reduced.
  • FIG. 9 is a schematic flowchart of another communication method provided by an embodiment of this application. This embodiment exemplifies the process of reporting TA information semi-persistently. As shown in FIG. 9, the method of this embodiment may include:
  • the network device sends configuration information to the terminal device, and the configuration information indicates that the TA information reporting mode is semi-continuous reporting.
  • the TA information when the semi-persistent reporting method is adopted, can be carried on the PUCCH resource, and can also be carried on the PUSCH resource. Therefore, when the configuration information indicates semi-persistent reporting, it can also indicate the physical channel carrying the TA information. Therefore, this embodiment includes the following two cases: the physical channel carrying TA information is PUCCH, and the physical channel carrying TA information is PUSCH.
  • the physical channel carrying TA information is PUCCH
  • TA information is carried on PUCCH resources.
  • the PUCCH resource may be pre-configured in the configuration information.
  • the configuration information includes at least one of the following information:
  • Time information used to indicate the time point of reporting TA information periodically
  • Resource information used to indicate PUCCH resources used to report TA information.
  • the terminal device can determine the time point of each periodic reporting of TA information and the PUCCH resources occupied by each reporting of TA information according to the configuration information.
  • the network device can receive TA information at the corresponding time point and the corresponding PUCCH resource.
  • the time information may include at least one of the following information: period information, used to indicate the reporting period of TA information; and offset information, used to indicate the time slot offset in each period.
  • period information used to indicate the reporting period of TA information
  • offset information used to indicate the time slot offset in each period.
  • the configuration information may also include: at least one bandwidth part (BWP) configured for the terminal device and the PUCCH resource corresponding to each BWP. Further, the configuration information may also indicate the PUCCH resource used for reporting TA information corresponding to each BWP.
  • BWP bandwidth part
  • the TA information is carried on the PUSCH resource.
  • the PUSCH resource can be dynamically scheduled by the network device through the PDCCH, or pre-configured by the network device for the terminal device (for example, pre-configured CG resource ).
  • the network device sends second indication information to the terminal device, where the second indication information is used to indicate to start reporting TA information.
  • the terminal device After the terminal device receives the configuration information, it is determined according to the configuration information that a semi-persistent reporting method is needed. Then the terminal device will not immediately report the TA information to the network device, but will wait for the second indication information sent by the network device. Correspondingly, the network device will send the second indication information to the terminal device when it needs to know the TA information of the terminal device according to its own needs.
  • the second indication information is used to indicate the start of reporting TA information. In other words, the second indication information is used to indicate the activation of semi-persistent TA information reporting.
  • the second indication information may be carried by MAC CE.
  • the network device sends the downlink PDSCH to the terminal device, and the second indication information is carried in the MAC CE in the PDSCH.
  • the second indication information may be carried through the PDCCH.
  • the second indication information may be specifically carried in the DCI carried in the PDCCH.
  • the second indication information includes a third information field.
  • the value of the information in the third information field is 1, it indicates that the TA information report is started (or that the semi-persistent TA information report is activated).
  • the value of the information in the third information field is 0, it means that the reporting of TA information is stopped (or it means that the reporting of semi-persistent TA information is deactivated).
  • S903 The terminal device starts to periodically send TA information to the network device.
  • the terminal device starts to report TA information to the network device periodically based on the second indication information received in S902.
  • the terminal device if the configuration information indicates that the physical channel carrying the TA information is the PUCCH, the terminal device periodically reports the TA information to the network device through the PUCCH resource according to the time information and resource information in the configuration information.
  • the terminal device if the configuration information indicates that the physical channel carrying the TA information is the PUSCH, the terminal device periodically reports the TA information to the network device through the PUSCH resource.
  • the network device may also periodically schedule the PUSCH resource, so that the terminal device may periodically send the TA information on the PUSCH resource.
  • the network device may pre-configure PUSCH resources (for example, CG resources) for the terminal device, so that the terminal device may periodically send TA information on the pre-configured PUSCH resource.
  • the network device sends second indication information to the terminal device, where the second indication information is used to instruct to stop reporting TA information.
  • the network device When the network device does not need to know the TA information of the terminal device, it can also send the second indication information to the terminal device.
  • the second indication information is used to instruct to stop reporting TA information, or in other words, the second indication information is used to deactivate semi-persistent TA information reporting.
  • the information in the third information field of the second indication information is set to 0.
  • S905 The terminal device stops sending TA information to the network device.
  • the terminal device stops periodically sending TA information to the network device based on the second instruction information received in S904.
  • FIG. 10 is a schematic diagram of a timing sequence for semi-persistently reporting TA information through PUCCH resources according to an embodiment of the application.
  • the rectangular box represents the PUCCH resource configured by the network device for the terminal device to periodically report TA information
  • the upward arrow indicates that the terminal device sends TA information on the PUCCH resource
  • the downward arrow indicates that the terminal receives the TA information.
  • the terminal device receives the configuration information through the PDSCH, and the configuration information indicates that the TA information is reported semi-persistently through the PUCCH resource.
  • the terminal device will not immediately start sending TA information to the network device through the PUCCH resource.
  • the terminal device receives the PDSCH, and the MAC CE in it indicates the start of reporting TA information
  • the terminal device starts to periodically send TA information to the network device through the pre-configured PUCCH resource.
  • the network device can periodically receive TA information from the PUCCH resource.
  • time t2 when the terminal device receives the PDSCH, and the MAC CE in it indicates to stop reporting TA information, the terminal device stops periodically sending TA information to the network device through the PUCCH resource.
  • FIG. 11 is a schematic diagram of a timing sequence for semi-persistently reporting TA information through PUSCH resources provided by an embodiment of the application.
  • the downward solid arrow indicates that the terminal device receives the PDSCH
  • the downward dashed arrow indicates that the terminal device receives the PDCCH
  • the upward arrow indicates that the terminal device sends TA information on the PUSCH resource.
  • the terminal device receives the configuration information through the PDSCH, and the configuration information indicates that the TA information is reported semi-persistently through the PUSCH resource. After receiving the configuration information, the terminal device will not immediately start sending TA information to the network device through the PUSCH resource. Assuming that at time t1, the terminal device receives the PDCCH, and the PDCCH indicates the start of reporting TA information, the terminal device starts to periodically send TA information to the network device through the PUSCH resource. Correspondingly, the network device can periodically receive TA information from the PUSCH resource. At time t2, the terminal device receives the PDCCH, and the PDCCH instructs to stop reporting TA information, and the terminal device stops periodically sending TA information to the network device through the PUSCH resource.
  • the terminal device adopts a semi-persistent reporting method to report TA information to the network device, so that the network device can understand the TA value change of the terminal device in time when needed, which is conducive to the subsequent dynamic uplink scheduling of the terminal device by the network device , which makes the network equipment closer to the real-time TA value of the terminal equipment during scheduling instead of always using the maximum TA value supported by the system, which can reduce the scheduling delay and thereby reduce the service transmission delay. Further, since the network device can send the second indication information to the terminal device when it needs to know the TA information of the terminal device according to its own needs, the signaling overhead can be reduced.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device 10 may be installed in a terminal device.
  • the communication device 10 includes a receiving module 11 and a sending module 12, where:
  • the receiving module 11 is used to receive configuration information from a network device
  • the sending module 12 is configured to send timing advance TA information to the network device according to the configuration information, where the TA information is used to indicate the TA value determined by the terminal device.
  • the configuration information is used to indicate at least one of the following information:
  • the reporting method of TA information is any of the following methods: periodic reporting, non-periodical reporting, and semi-continuous reporting;
  • a physical channel that carries TA information, and the physical channel is a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
  • the configuration information is used to indicate any of the following situations:
  • the reporting method is periodic reporting, and the physical channel carrying TA information is PUCCH; or,
  • the reporting method is aperiodic reporting, and the physical channel carrying TA information is PUSCH; or,
  • the reporting method is semi-persistent reporting, and the physical channel carrying TA information is PUCCH; or,
  • the reporting method is semi-persistent reporting, and the physical channel carrying TA information is PUSCH.
  • the receiving module 11 is further configured to:
  • the first indication information is carried by the physical downlink control channel PDCCH, and the PDCCH is used to schedule PUSCH resources.
  • the first indication information is used to indicate whether to send TA information on the scheduled PUSCH resource.
  • the receiving module 11 is further configured to:
  • the second indication information is carried by the medium access control MAC control unit CE, or is carried by the PDCCH.
  • the configuration information indicates that the physical channel carrying TA information is a PUCCH channel
  • the configuration information includes at least one of the following information:
  • Time information used to indicate the time point of reporting TA information periodically
  • Resource information used to indicate PUCCH resources used to report TA information.
  • the time information includes at least one of the following information:
  • Period information used to indicate the reporting period of TA information
  • the offset information is used to indicate the slot offset in each cycle.
  • the configuration information further includes: at least one bandwidth part BWP configured by the terminal device, and a PUCCH resource corresponding to each BWP;
  • the resource information is used to indicate the PUCCH resource used for reporting TA information corresponding to each BWP.
  • the configuration information is radio resource control RRC signaling.
  • the TA information includes an index corresponding to the TA value.
  • the TA information includes: an index corresponding to a first TA value or an index corresponding to a second TA value; wherein, the first TA value is a real-time TA value determined by the terminal device, so The second TA value is the amount of change of the real-time TA value determined by the terminal device relative to the TA value reported last time.
  • FIG. 13 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • the communication device 10 further includes a processing module 13, wherein:
  • the processing module 13 is configured to determine TA information according to the location information of the terminal device and the location information of the network device.
  • the processing module 13 is further configured to determine the location information of the network device according to the ephemeris information.
  • the communication device provided in the embodiment of the present application can execute the technical solution described in the foregoing method embodiment, and its implementation principles and beneficial effects are similar, and details are not described herein again.
  • FIG. 14 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • the communication device 20 may be installed in a network device.
  • the communication device 20 includes a sending module 21 and a receiving module 22, where:
  • the sending module is used to send configuration information to the terminal device
  • the receiving module is configured to receive timing advance TA information from the terminal device, where the TA information is used to indicate the TA value determined by the terminal device.
  • the configuration information is used to indicate at least one of the following information:
  • the reporting method of TA information is any of the following methods: periodic reporting, non-periodical reporting, and semi-continuous reporting;
  • a physical channel that carries TA information, and the physical channel is a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
  • the configuration information is used to indicate any of the following situations:
  • the reporting method is periodic reporting, and the physical channel carrying TA information is PUCCH; or,
  • the reporting method is aperiodic reporting, and the physical channel carrying TA information is PUSCH; or,
  • the reporting method is semi-persistent reporting, and the physical channel carrying TA information is PUCCH; or,
  • the reporting method is semi-persistent reporting, and the physical channel carrying TA information is PUSCH.
  • the configuration information indicates that the reporting mode is aperiodic reporting
  • the sending module 21 is further configured to:
  • the configuration information indicates that the physical channel carrying the TA information is the PUSCH
  • the first indication information is carried by the physical downlink control channel PDCCH
  • the PDCCH is used to schedule target PUSCH resources
  • the second An indication information is used to indicate whether to send TA information on the target PUSCH resource.
  • the configuration information indicates that the reporting mode is semi-persistent reporting
  • the sending module 21 is further configured to:
  • the second indication information is carried by the medium access control MAC control unit CE, or is carried by the PDCCH.
  • the configuration information indicates that the physical channel carrying TA information is a PUCCH channel, and the configuration information includes at least one of the following information:
  • Time information used to indicate the time point of reporting TA information periodically
  • Resource information used to indicate PUCCH resources used to report TA information.
  • the time information includes at least one of the following information:
  • Period information used to indicate the reporting period of TA information
  • the offset information is used to indicate the slot offset in each cycle.
  • the configuration information further includes: at least one bandwidth part BWP configured by the terminal device, and a PUCCH resource corresponding to each BWP;
  • the resource information is used to indicate the PUCCH resource used for reporting TA information corresponding to each BWP.
  • the configuration information is radio resource control RRC signaling.
  • the TA information includes an index corresponding to the TA value.
  • the TA information includes: an index corresponding to a first TA value, or an index corresponding to a second TA value;
  • the first TA value is a real-time TA value determined by the terminal device
  • the second TA value is a change amount of the real-time TA value determined by the terminal device with respect to the TA value reported last time.
  • FIG. 15 is a schematic structural diagram of a terminal device provided by an embodiment of the application.
  • the terminal device 30 may include: a transceiver 31, a memory 32, and a processor 33.
  • the transceiver 31 may include: a transmitter and/or a receiver.
  • the transmitter can also be referred to as a transmitter, a transmitter, a transmission port or a transmission interface and other similar descriptions
  • the receiver can also be referred to as a receiver, a receiver, a reception port or a reception interface and other similar descriptions.
  • the transceiver 31, the memory 32, and the processor 33 are connected to each other through a bus 34.
  • the memory 32 is used to store program instructions
  • the processor 33 is configured to execute program instructions stored in the memory, so as to enable the terminal device 30 to execute any of the communication methods shown above.
  • the receiver of the transceiver 31 can be used to perform the receiving function of the terminal device in the above-mentioned communication method.
  • the transmitter of the transceiver 31 can be used to perform the transmitting function of the terminal device in the above-mentioned communication method.
  • FIG. 16 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • the network device 40 may include: a transceiver 41, a memory 42, and a processor 43.
  • the transceiver 41 may include: a transmitter and/or a receiver.
  • the transmitter can also be referred to as a transmitter, a transmitter, a transmission port or a transmission interface and other similar descriptions
  • the receiver can also be referred to as a receiver, a receiver, a reception port or a reception interface and other similar descriptions.
  • the transceiver 41, the memory 42, and the processor 43 are connected to each other through a bus 44.
  • the memory 42 is used to store program instructions
  • the processor 43 is configured to execute program instructions stored in the memory, so as to enable the network device 40 to execute any of the communication methods shown above.
  • the transmitter of the transceiver 41 can be used to perform the sending function of the network device in the above-mentioned communication method.
  • An embodiment of the present application provides a computer-readable storage medium that stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, it is used to implement the above-mentioned communication method.
  • the embodiments of the present application may also provide a computer program product, which can be executed by a processor, and when the computer program product is executed, it can implement the communication method executed by any of the above-mentioned terminal devices.
  • the embodiments of the present application may also provide a computer program product, which can be executed by a processor, and when the computer program product is executed, it can implement the communication method executed by any of the aforementioned network devices.
  • the terminal device, computer-readable storage medium, and computer program product of the embodiments of the present application can execute the communication method executed by the above-mentioned terminal device.
  • the specific implementation process and beneficial effects refer to the above, and will not be repeated here.
  • the network device, computer-readable storage medium, and computer program product of the embodiments of the present application can execute the communication method executed by the above-mentioned network device.
  • the specific implementation process and beneficial effects refer to the above, and will not be repeated here.
  • All or part of the steps in the foregoing method embodiments may be implemented by a program instructing relevant hardware.
  • the aforementioned program can be stored in a readable memory.
  • the program executes the steps including the above-mentioned method embodiments; and the aforementioned memory (storage medium) includes: read-only memory (English: read-only memory, abbreviation: ROM), RAM, flash memory, hard disk, Solid state hard disk, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disc (English: optical disc) and any combination thereof.
  • These computer program instructions can be provided to the processing unit of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processing unit of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • the term “including” and its variations may refer to non-limiting inclusion; the term “or” and its variations may refer to “and/or”.
  • the terms “first”, “second”, etc. in this application are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence.
  • “plurality” means two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects before and after are in an "or” relationship.

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Abstract

本申请实施例提供一种通信方法、装置及设备，终端设备从网络设备接收配置信息，并根据配置信息向网络设备发送TA信息。通过上述过程，保证了终端设备的TA值的实时更新和调整，避免了上行失步的频繁发生。

Description

通信方法、装置及设备 技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法、装置及设备。
背景技术
非地面通信网络(non-terrestrial network，NTN)是指终端设备和卫星(还可以称为网络设备)之间的通信网络。
上行传输中，网络设备要求来自同一时刻的不同终端设备的上行信号到达网络设备的时间基本是对齐的。例如，对于离网络设备较远的终端设备，由于具有较大的传输时延，就要比离网络设备较近的终端设备提前发送上行数据。因此，网络设备通过测量终端设备的上行传输来确定每个终端设备的定时提前(timing advance，TA)值，并将该TA值发送给终端设备，使得终端设备根据TA值来调整上行数据的发送时间，从而控制来自不同终端设备的上行信号到达网络设备的时间对齐。
然而，在NTN系统中，对于非GEO场景，终端设备与网络设备之间的TA值变化较快，且TA值变化幅度较大，通过上述方式网络设备可能无法实时控制终端设备的TA值更新，使得终端设备的TA值更新不及时，从而导致上行失步的频繁发生。
发明内容
本申请实施例提供一种通信方法、装置及设备，用以避免上行失步的频繁发生。
第一方面，本申请实施例提供一种通信方法，包括：
终端设备从网络设备接收配置信息；
所述终端设备根据所述配置信息向所述网络设备发送定时提前TA信息，所述TA信息用于指示所述终端设备确定的TA值。
第二方面，本申请实施例提供一种通信方法，包括：
网络设备向终端设备发送配置信息；
所述网络设备从所述终端设备接收定时提前TA信息，所述TA信息用于指示所述终端设备确定的TA值。
第三方面，本申请实施例提供一种通信装置，包括：
接收模块，用于从网络设备接收配置信息；
发送模块，用于根据所述配置信息向所述网络设备发送定时提前TA信息，所述TA信息用于指示所述终端设备确定的TA值。
第四方面，本申请实施例提供一种通信装置，包括：
发送模块，用于向终端设备发送配置信息；
接收模块，用于从所述终端设备接收定时提前TA信息，所述TA信息用于指示所述终端设备确定的TA值。
第五方面，本申请实施例提供一种终端设备，包括：收发器、处理器、存储器；
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上述第一方面任一项所述的通信方法。
第六方面，本申请实施例提供一种网络设备，包括：收发器、处理器、存储器；
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上述第二方面任一项所述的通信方法。
第七方面，本申请实施例提供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上述第一方面任一项所述的通信方法。
第八方面，本申请实施例提供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上述第二方面任一项所述的通信方法。
本申请实施例提供的通信方法、装置及设备，终端设备从网络设备接收配置信息，并根据配置信息向网络设备发送TA信息。通过上述过程，保证了终端设备的TA值的实时更新和调整，避免了上行失步的频繁发生，进而避免了由于频繁上行失步导致的信令开销和随机接入资源的消耗。 进一步的，通过上述过程，网络设备可以实时跟踪终端设备的TA值更新情况，有利于对终端设备进行上行调度，降低调度时延和业务传输时延。
附图说明
图1为本申请实施例提供的定时提前的示意图；
图2为本申请实施例提供的一种通信系统的架构示意图；
图3为本申请实施例提供的另一种通信系统的架构示意图；
图4为本申请实施例提供的一种通信方法的流程示意图；
图5为本申请实施例提供的另一种通信方法的流程示意图；
图6为本申请实施例提供的周期性上报TA信息的时序示意图；
图7为本申请实施例提供的又一种通信方法的流程示意图；
图8为本申请实施例提供的非周期性上报TA信息的时序示意图；
图9为本申请实施例提供的又一种通信方法的流程示意图；
图10为本申请实施例提供的通过PUCCH资源半持续性上报TA信息的时序示意图；
图11为本申请实施例提供的通过PUSCH资源半持续性上报TA信息的时序示意图；
图12为本申请实施例提供的一种通信装置的结构示意图；
图13为本申请实施例提供的另一种通信装置的结构示意图；
图14为本申请实施例提供的又一种通信装置的结构示意图；
图15为本申请实施例提供的终端设备的结构示意图；
图16为本申请实施例提供的网络设备的结构示意图。
具体实施方式
为了便于理解，首先，对本申请所涉及的概念进行说明。
终端设备：通常具有无线收发功能，终端设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，简称VR)终端设备、增强现实(augmented reality，简称AR)终端设备、工业控制(industrial control)中的无线终端、车载终端设备、无人驾驶(selfdriving)中的无线终端、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备、可穿戴终端设备等。本申请实施例所涉及的终端设备还可以称为终端、用户设备(user equipment，UE)、接入终端设备、车载终端、工业控制终端、UE单元、UE站、移动站、移动台、远方站、远程终端设备、移动设备、UE终端设备、无线通信设备、UE代理或UE装置等。终端设备也可以是固定的或者移动的。
网络设备：通常具有无线收发功能，网络设备可以具有移动特性，例如，网络设备可以为移动的设备。可选的，网络设备可以为卫星、气球站。例如，卫星可以为低地球轨道(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。例如，LEO卫星的轨道高度范围通常为500km～1500km，轨道周期(围绕地球旋转的周期)约为1.5小时～2小时。用户间单跳通信的信号传播延迟约为20ms，用户间单跳通信时延是指终端设备到网络设备之间的传输时延，或者网络设备到传输设备之间的时延。最大卫星可视时间约为20分钟，最大可视时间是指卫星的波束覆盖地面某一片区域的最长时间，LEO卫星相对地面是移动的，随着卫星的移动，其覆盖到的地面区域也是变化的。LEO卫星的信号传播距离短，链路损耗少，对终端设备的发射功率要求不高。GEO卫星的轨道高度通常为35786km，轨道周期为24小时。用户间单跳通信的信号传播延迟约为250ms。为了保证卫星的覆盖以及提升通信网络的系统容量，卫星可以采用多波束覆盖地面，例如，一颗卫星可以形成几十或者几百个波束来覆盖地面，一个波束可以覆盖直径几十至几百公里的地面区域。当然，网络设备还可以为设置在陆地、水域等位置的基站，例如，网络设备可以是下一代基站(next generation NodeB，gNB)或者下一代演进型基站(next generation-evolved NodeB，ng-eNB)。其中，gNB为UE提供新空口(new radio,NR)的用户面功能和控制面功能,ng-eNB为UE提供演进型通用陆地无线接入(evolved universal terrestrial radio access,E-UTRA)的用户面功能和控制面功能，需要说明的是，gNB和ng-eNB仅是一种名称，用于表示支持5G网络系统的基站，并不具有限制意义。网络设备还可以为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，网络设备还可以为中继站、接入点、车载 设备、可穿戴设备以及5G之后的网络中的网络侧设备或未来演进的PLMN网络中的网络设备、路边站点单元(road site unit，RSU)等。
上行同步：是指在同一个小区中，使用同一时隙资源的不同位置的终端设备发送的上行信号同时到达网络设备，即同一时隙不同终端设备的信号到达网络设备保持同步。目的是为了减小小区内不同终端设备之间的上行多址干扰和多径干扰，增加小区容量和小区半径。
定时提前(timing advance，TA)：由于上行传输的一个重要特征是不同终端设备在时频上正交多址接入，即来自同一小区的不同终端设备的上行传输之间互不干扰。为了保证上行传输的正交性，避免小区内(intra-cell)干扰，网络设备要求来自同一时刻但不同频域资源的不同终端设备的信号到达网络设备的时间基本上是对齐的。为了保证网络设备侧的时间同步，通信系统(例如NR系统)支持上行定时提前的机制。
网络设备侧的上行时钟和下行时钟是相同的，而终端设备侧的上行时钟和下行时钟之间有偏移，并且不同终端设备有各自不同的上行定时提前量(可以称为TA量，或者TA值)。网络设备通过适当地控制每个终端设备的偏移，可以控制来自不同终端设备的上行信号到达网络设备的时间。对于离网络设备较远的终端设备，由于有较大的传输时延，就要比离网络设备较近的终端设备提前发送上行数据。
下面，结合图1对定时提前进行介绍。图1为本申请实施例提供的定时提前的示意图。其中图1中的(a)示例的是没有定时提前的情况，图1中的(b)示例的是定时提前的情况。
如图1中的(a)所示，网络设备在时刻0发送下行信号后，该下行信号在传输时间Tp1后被离网络设备较近的终端设备1接收到，即终端设备1在时刻Tp1接收到下行信号。终端设备1将该时刻作为上行定时，向网络设备发送上行信号。终端设备1发送的上行信号在传输Tp1时间后到达网络设备，即终端设备1发送的上行信号将在时刻2Tp1到达网络设备。类似的，网络设备在时刻0发送的下行信号在传输时间Tp2后被离网络设备较远的终端设备2接收到，即终端设备2在时刻Tp2接收到下行信号。终端设备2将该时刻作为上行定时，向网络设备发送上行信号。终端设备2发送的上行信号在传输Tp2时间后到达网络设备，即终端设备2发送的上行信号将在时刻2Tp2到达网络设备。可见，终端设备1和终端设备2发送的上行信号到达网络设备的时间未对齐。
如图1中的(b)所示，网络设备在时刻0发送下行信号后，该下行信号在传输时间Tp1后被离网络设备较近的终端设备1接收到，即终端设备1在时刻Tp1接收到下行信号。终端设备1将上行定时提前(提前时间量为2Tp1)，向网络设备发送上行信号。终端设备1发送的上行信号在传输Tp1时间后到达网络设备，即终端设备1发送的上行信号将在时刻0到达网络设备。类似的，网络设备在时刻0发送的下行信号在传输时间Tp2后被离网络设备较远的终端设备2接收到，即终端设备2在时刻Tp2接收到下行信号。终端设备2将上行定时提前(提前时间量为2Tp2)，向网络设备发送上行信号。终端设备2发送的上行信号在传输Tp2时间后到达网络设备，即终端设备2发送的上行信号将在时刻0到达网络设备。可见，终端设备1和终端设备2发送的上行信号到达网络设备的时间是对齐的。
图1的(a)中指出了不进行上行定时提前所造成的影响。从图1的(b)中可以看出，网络设备侧的上行子帧和下行子帧的定时是相同的，而终端设备的上行子帧和下行子帧的定时之间有偏移，即存在上行定时提前量TA。
在相关技术中(例如NR系统中)，终端设备的TA值是由网络设备控制的。网络设备通过测量终端设备的上行传输来确定每个终端设备的TA值。只要终端设备有上行传输，网络设备就可以用来测量TA值。网络设备为终端设备确定TA值后，将TA值通过TA命令(timing advance command)发送给终端设备。
网络设备通过下述两种方式给终端设备发送TA命令。
(1)初始TA：在随机接入过程，网络设备通过测量终端设备发送的随机接入前导(preamble)来确定TA值，并通过随机接入响应(random access response，RAR)中的TA命令字段发送给终端设备。
(2)RRC连接态TA的调整：虽然在随机接入过程中，终端设备与网络设备取得了上行同步，但上行信号到达网络设备的定时可能会随着时间发生变化。例如如下几种情况：(a)高速移动中的终端设备与网络设备的传输延迟会不断变化。(b)当前传输路径消失，切换到新的传输路径。例如在建筑物密集的城市，终端设备移动到建筑的转角时，这种情况就很可能发生。(c)终端设备的晶振偏移，长时间的偏移累积可能导致上行定时出错。(d)由于终端设备移动而导致的多普勒频移等。因此，终端设备需要不断地更新其上行TA值，以保持上行同步。如果某个终端设备的TA值需要校正，则网络设备会发送一个TA命令给该终端设备，要求其调整上行TA值。该 TA命令是通过媒质接入控制(medium access control，MAC)控制单元(control element，CE)发送给终端设备的。
在相关技术中，为了保持上行同步，网络设备会通过RRC信令给终端设备配置一个定时器(称为timeAlignmentTimer)。终端设备可以使用该定时器确定上行是否同步。当终端设备收到TA命令(来自RAR或MAC CE)，终端设备会启动或重启该定时器。在该定时器运行期间，终端设备认为上行是同步的，即终端设备维护的TA值有效。如果该定时器超时，则终端设备认为上行失步，如果终端设备有上行数据要发送，则需要触发随机接入重新获取TA值。也就是说，当定时器超时后，终端设备在上行只能发送preamble。
在地面网络中，终端设备与网络设备之间的TA值变化较慢，上述相关技术可以保持终端设备的上行同步。然而，与传统地面网络相比，NTN网络(尤其是LEO场景)中终端设备与网络设备之间的TA值变化较快，且TA值变化幅度较大。采用上述相关技术时，网络设备必须更加频繁地对终端设备的上行传输进行测量，以对终端设备的TA值进行更新。然而，有些场景下(例如，当终端设备并没有较多的上行传输用于测量时，或者，网络设备需要测量的终端设备的数量较多时)，可能出现网络设备无法实时控制终端设备TA值更新的情况，使得终端设备的TA值更新不及时，从而导致上行失步的频繁发生。进而，当终端设备有上行数据发送时，又需要重新进行随机接入过程，从而造成较大的信令开销和随机接入资源的消耗。
为了解决上述技术问题，本申请实施例提出一种通信方法，为了便于理解本申请所示的通信方法，首先，结合图2-图3，对本申请中的通信系统的架构进行说明。
图2为本申请实施例提供的一种通信系统的架构示意图。请参见图2，包括终端设备101和卫星102，终端设备101和卫星102之间可以进行无线通信。终端设备101和卫星102之间所形成的网络还可以称为NTN。在图2所示的通信系统的架构中，卫星102具有基站的功能，终端设备101和卫星102之间可以直接通信。在系统架构下，可以将卫星102称为网络设备。
图3为本申请实施例提供的另一种通信系统的架构示意图。请参见图3，包括终端设备201、卫星202和基站203，终端设备201和卫星202之间可以进行无线通信，卫星202与基站203之间可以通信。终端设备201、卫星202和基站203之间所形成的网络还可以称为NTN。在图3所示的通信系统的架构中，卫星202不具有基站的功能，终端设备201和基站203之间的通信需要通过卫星202的中转。在该种系统架构下，可以将基站203称为网络设备。
在本申请中，在TA值变化较大的场景(例如NTN)下，由终端设备基于自身的定位能力来确定并调整TA值，终端设备将确定的TA值上报给网络设备。通过上述过程，保证了终端设备的TA值的实时更新和调整，避免了上行失步的频繁发生，进而避免了由于频繁上行失步导致的信令开销和随机接入资源的消耗。进一步的，通过上述过程，网络设备可以实时跟踪终端设备的TA值更新情况，有利于对终端设备进行上行调度，降低调度时延和业务传输时延。
下面，通过具体实施例对本申请所示的技术方案进行详细说明。需要说明的是，下面几个实施例可以独立存在，也可以相互结合，对于相同或相似的内容，在不同的实施例中不再重复说明。
图4为本申请实施例提供的一种通信方法的流程示意图。如图4所示，本实施例的方法包括：
S401：网络设备向终端设备发送配置信息。
其中，配置信息可以指示终端设备向网络设备上报TA信息所需要的信息。
可选的，配置信息用于指示TA信息的上报方式。上报方式可以为下述中的任一种：周期性上报、非周期性上报、半持续性上报。
其中，周期性上报是指终端设备按照一定的周期向网络设备上报TA信息。例如，终端设备以预设时间间隔向网络设备上报TA信息。其中，预设时间间隔可以是网络设备在配置信息中指示的，也可以是终端设备自主确定的，还可以是网络设备和终端设备事先约定好的。
非周期性上报是指终端设备向网络设备上报TA信息的时刻不具有周期性。例如，终端设备可以根据预设的上报触发条件来向终端设备上报TA信息。每当上报触发条件满足时，终端设备向网络设备上报TA信息。其中，上报触发条件可以是由网络设备在配置信息中指示的，也可以是由终端设备自主确定的，还可以是由网络设备和终端设备事先约定好的。或者，网络设备可以在每次需要获知终端设备的TA信息时，通过指示信息指示终端设备上报一次TA信息。
半持续性上报是指终端设备在某个时间段内周期性地向网络设备上报TA信息。其中，该时间段的开始时刻和结束时刻可以是网络设备在配置信息中指示的，也可以是终端设备自主确定的，还可以是网络设备和终端设备事先约定好的。或者，网络设备还可以根据需要通过指示信息向终端设备指示开始时刻和结束时刻。
可选的，配置信息可以指示承载TA信息的物理信道。物理信道可以为物理上行共享信道(physical uplink shared channel,PUSCH)或者物理上行控制信道(physical uplink control channel, PUCCH)。
可选的，配置信息还可以同时指示TA信息的上报方式和承载TA信息的物理信道。当配置信息同时指示上述两种信息时，上述两种信息可以被显示或者隐式地指示。例如，若配置信息指示上报方式为周期性上报时，则隐式指示承载TA信息的物理信道为PUCCH。若配置信息指示上报方式为非周期性上报时，则隐式指示承载TA信息的物理信道为PUSCH。
可选的，配置信息用于指示下述情况中的任一种：
情况1：上报方式为周期性上报，承载TA信息的物理信道为PUCCH；
情况2：上报方式为非周期性上报，承载TA信息的物理信道为PUSCH；
情况3：上报方式为半持续性上报，承载TA信息的物理信道为PUCCH；
情况4：上报方式为半持续性上报，承载TA信息的物理信道为PUSCH。
本实施例中，配置信息可以为RRC信令。即，网络设备将配置信息承载在RRC信令中发送给终端设备。例如，RRC信令可以为RRC重配信令等。
需要说明的是，网络设备可以采用多种方式在配置信息中指示上报方式，本实施例对此不作限定。下面结合几种可能的示例进行描述。
一个示例中，配置信息中包括第一信息域。第一信息域中的信息取值用于指示上报方式。例如，若第一信息域中的信息取值为1，则表示上报方式为周期性上报。若第一信息域中的信息取值为2，则表示上报方式为非周期性上报。若第一信息域中的信息取值为3，则表示上报方式为半持续性上报。
或者，第一信息域中的信息取值用于指示上述不同情况。例如，若第一信息域中的信息取值为1，则表示上报方式为周期性上报，且承载TA的物理信道为PUCCH(情况1)。若第一信息域中的信息取值为2，则表示上报方式为非周期性上报，且承载TA的物理信道为PUSCH(情况2)。若第一信息域中的信息取值为3，则表示上报方式为半持续性上报，且承载TA的物理信道为PUCCH(情况3)。若第一信息域中的信息取值为4，则表示上报方式为半持续性上报，且承载TA的物理信道为PUSCH(情况4)。
另一个示例中，不同的上报方式对应配置信息中的不同信息域。例如，周期性上报对应信息域1，非周期性上报对应信息域2，半持续性上报对应信息域3。若配置信息中存在信息域1，则表示上报方式为周期性上报。若配置信息中存在信息域2，则表示上报方式为非周期性上报。若配置信息中存在信息域3，则表示上报方式为半持续性上报。
或者，上述不同情况对应配置信息中的不同信息域。例如，情况1对应信息域1，情况2对应信息域2，情况3对应信息域3，情况4对应信息域4。若配置信息中存在信息域1，则指示情况1。若配置信息中存在信息域2，则指示情况2。若配置信息中存在信息域3，则指示情况3。若配置信息中存在信息域4，则指示情况4。
应理解，当配置信息指示的上报方式不同时，配置信息中包括的内容也可能不同。后续将结合图5至图11所示的实施例进行详细描述。本实施例对此不作赘述。
S402：终端设备根据配置信息向网络设备发送TA信息。
其中，TA信息用于指示终端设备确定的TA值。
本申请实施例中，终端设备具有自定位能力。终端设备可以基于自定位能力确定不同时刻对应的TA值，并根据确定的TA值不断调整上行数据的发送时刻。
可选的，终端设备可以根据自身的位置信息和网络设备的位置信息确定TA值。例如，根据终端设备与网络设备之间的距离确定TA值。一个示例中，终端设备可以每隔预设间隔根据自身与网络设备之间的距离计算得到TA值。本申请实施例对于终端设备计算TA值的具体方式并不作具体限定。
在NTN网络中，当卫星作为网络设备时，网络设备的位置信息可能是时刻变化的，并且，网络设备的运行轨迹与卫星一致。因此，网络设备的位置信息可以由星历信息确定。星历信息也可以称为星历表信息，是指一种卫星轨道参数表，即，用列表数据说明每隔一定时间卫星预定所在位置。因此，终端设备可以根据星历信息，确定出网络设备在不同时刻的位置信息。
本申请实施例中，由终端设备基于自身的位置信息和网络设备的位置信息确定并调整TA值，保证了终端设备的TA值的实时更新和调整，能够避免上行失步的频繁发生，进而可以避免由于频繁上行失步导致的信令开销和随机接入资源的消耗。
可选的，终端设备采用配置信息指示的TA信息的上报方式向网络设备发送TA信息。也就是说，当配置信息指示的上报方式为周期性上报时，终端设备周期性地向网络设备发送TA信息。当配置信息指示的上报方式为非周期性上报时，终端设备非周期性地向网络设备发送TA信息。当配置信息指示的上报方式为半持续性上报时，终端设备半持续性地向网络设备发送TA信息。
可选的，终端设备通过配置信息指示的承载TA信息的物理信道向网络设备发送TA信息。也 就是说，当配置信息指示承载TA信息的物理信道为PUCCH时，终端设备通过PUCCH向网络设备发送TA信息。当配置信息指示承载TA信息的物理信道为PUSCH时，终端设备通过PUSCH向网络设备发送TA信息。
需要说明的是，当配置信息指示的上报方式不同时，终端设备向网络设备上报TA信息的过程也有所不同。后续将结合图5至图11所示的实施例针对不同的上报方式进行分别描述，此处不作赘述。
应当理解，终端设备每次向网络设备上报的TA信息，指示的是终端设备当前确定的TA值。这样，网络设备根据接收到的TA信息，能够获知终端设备最新的TA值，从而跟踪终端设备的TA值变化情况，有利于网络设备后续对终端设备的上行动态调度，使得网络设备在调度时更贴近终端设备的实时TA值而不用一直采用系统支持的最大TA值，这样能够减少调度时延，从而降低业务传输时延。
可选的，终端设备向网络设备上报的TA信息中包括：TA值对应的索引。例如，TA索引的范围可以为0～N。不同的索引对应不同的TA值，每个索引对应的TA值可以为正值，还可以为负值。当终端设备基于自身定位能力计算得到TA值后，通过查询索引表，确定出该TA值对应的索引，将该索引发送给网络设备。能够理解，通过发送TA值对应的索引，能够降低TA信息的长度。
一个示例中，TA信息可以包括第一TA值对应的索引。其中，第一TA值为终端设备确定的实时TA值，即，终端设备最新计算得到的TA值。也就是说，终端设备向网络设备上报的是实时的绝对TA值对应的索引。
另一个示例中，TA信息可以包括第二TA值对应的索引。其中，第二TA值为终端设备确定的实时TA值相对于最近一次上报的TA值的变化量。也就是说，终端设备向网络设备上报的是增量TA值对应的索引。能够理解，上报增量TA值对应的索引与上报绝对TA值对应的索引，能够进一步降低TA信息的长度。
本实施例提供的通信方法，终端设备从网络设备接收配置信息，并根据配置信息向网络设备发送TA信息。通过上述过程，保证了终端设备的TA值的实时更新和调整，避免了上行失步的频繁发生，进而避免了由于频繁上行失步导致的信令开销和随机接入资源的消耗。进一步的，通过上述过程，网络设备可以实时跟踪终端设备的TA值更新情况，有利于对终端设备进行上行调度，降低调度时延和业务传输时延。
图5为本申请实施例提供的另一种通信方法的流程示意图。本实施例示例的是周期性上报TA信息的过程。如图5所示，本实施例的方法可以包括：
S501：网络设备向终端设备发送配置信息，配置信息指示TA信息的上报方式为周期性上报。
一个示例中，周期性的TA信息可以承载在PUCCH资源中。示例性的，配置信息可以包括下述信息中的至少一项：
时间信息，用于指示每次周期性上报TA信息的时间点；
资源信息，用于指示用于上报TA信息的PUCCH资源。
这样，根据配置信息终端设备可以确定出每次周期性上报TA信息的时间点，以及每次上报TA信息所占用的PUCCH资源。相应的，网络设备可以在相应的时间点和相应的PUCCH资源上接收TA信息。
可选的，时间信息可以包括下述信息中的至少一项：周期信息，用于指示TA信息的上报周期；偏移信息，用于指示每个周期内的时隙偏移。这样，根据周期信息和偏移信息可以确定出终端设备每次周期性上报TA信息的时间点。
可选的，配置信息中还可以包括：终端设备被配置的至少一个带宽部分(bandwidth part，BWP)，以及每个BWP对应的PUCCH资源。进一步的，在配置信息中还可以指示每个BWP所对应的用于上报TA信息的PUCCH资源。
另一个示例中，周期性的TA信息还可以承载在PUSCH资源中。该PUSCH资源可以是网络设备动态调度的资源，例如，网络设备周期性地调度PUSCH资源，使得终端设备可以通过PUSCH资源周期性地上报TA信息。该PUSCH资源还可以是网络设备为终端设备预配置的资源(例如配置授权CG资源)，终端设备在预配置资源上周期性的上报TA信息。
S502：终端设备周期性的向网络设备发送TA信息。
本实施例中，终端设备接收到配置信息后，若配置信息指示的上报方式为周期性上报，则终端设备开始周期性地向网络设备发送TA信息。
可选的，终端设备根据配置信息所指示的时间信息和PUCCH资源信息，周期性的通过PUCCH向网络设备发送TA信息。例如，终端设备根据时间信息，确定出每次上报TA信息的时间点，在每次上报TA信息时，在当前激活的BWP对应的用于上报TA信息的PUCCH资源上发送TA信 息。
下面结合图6对周期性TA上报进行举例说明。图6为本申请实施例提供的周期性上报TA信息的时序示意图。如图6所示，假设矩形框表示网络设备为终端设备配置的用于周期性上报TA信息的PUCCH资源，向上的箭头表示终端设备在PUCCH资源上发送TA信息，向下的箭头表示终端接收到PDSCH。
参见图6，终端设备通过PDSCH接收到配置信息，配置信息指示的是周期性上报TA信息。因此，终端设备接收到配置信息后，开始周期性的通过预先配置的用于上报TA信息的PUCCH资源向网络设备发送TA信息。相应的，网络设备可以周期性的从相应的PUCCH资源上接收到TA信息。由图6可知，当终端设备接收到用于指示周期性上报TA信息的配置信息后，即可开始周期性的TA信息上报，而无需等待其他的指示信息。
本实施例中，通过终端设备向网络设备周期性的上报TA信息，使得网络设备能够及时了解终端设备的TA值变化情况，有利于网络设备后续对终端设备的上行动态调度，使得网络设备在调度时更贴近终端设备的实时TA值而不用一直采用系统支持的最大TA值，这样能够减少调度时延，从而降低业务传输时延。
图7为本申请实施例提供的又一种通信方法的流程示意图。本实施例示例的是非周期性上报TA信息的过程。如图7所示，本实施例的方法可以包括：
S701：网络设备向终端设备发送配置信息，配置信息指示TA信息的上报方式为非周期性上报。
S702：网络设备向终端设备发送第一指示信息，第一指示信息用于指示是否发送TA信息。
本实施例中，终端设备接收到配置信息后，根据配置信息确定需要采用非周期性上报方式。则终端设备不会立即向网络设备上报TA信息，而是会等待网络设备发送的第一指示信息。相应的，网络设备会根据自己的需求，在需要获知终端设备的TA信息时，向终端设备发送第一指示信息，以指示终端设备上报当前的TA信息。
其中，第一指示信息中可以包括用于上报TA信息的目标资源，以指示终端设备在目标资源上发送TA信息。第一指示信息可以承载在MAC CE中，或者，承载在PDCCH中。目标资源可以是用于上行传输的任意资源。例如：目标资源可以为PUCCH资源，还可以为PUSCH资源。
一个示例中，目标资源为PUSCH资源，第一指示信息承载在用于调度PUSCH资源的PDCCH中。例如，第一指示信息可以为PDCCH信息中的DCI。示例性的，网络设备在PDCCH信息中动态调度了PUSCH资源(例如，通过DCI指示PUSCH资源分配)。并且，网络设备在PDCCH信息中还指示了在本次调度的PUSCH资源是否进行TA信息上报。例如，当PDCCH信息中存在第二信息域，或者当第二信息域中的信息取值为第一预设值(例如1)时，指示在本次调度的PUSCH资源上发送TA信息。当PDCCH信息中不存在第二信息域，或者当第二信息域中的信息取值为第二预设值(例如0)时，指示在本次调度的PUSCH资源上不发送TA信息。
另一个示例中，目标资源为PUCCH资源。例如，网络设备为终端设备预先配置了用于上报TA信息的PUCCH资源。当网络设备需要获知终端设备的TA信息时，向终端设备发送第一指示信息，以指示终端设备在预先配置的PUCCH资源上发送TA信息。
S703：若第一指示信息指示发送TA信息，则终端设备向网络设备发送TA信息。
S704：若第一指示信息指示不发送TA信息，则终端设备向网络设备不发送TA信息。
示例性的，终端设备接收到用于调度PUSCH资源的PDCCH信息，若PDCCH信息还指示了在本次调度的PUSCH资源上发送TA信息，则终端设备在本次调度的PUSCH资源上发送TA信息。
一个示例中，终端设备通过PUSCH资源发送TA信息时，可以将TA信息承载在PUSCH的MAC CE中。
本实施例中，采用非周期性上报方式进行TA信息上报时，终端设备根据第一指示信息的指示进行TA信息的上报。即，在第一指示信息指示发送TA信息时，终端设备才向网络设备上报一次TA信息。
图8为本申请实施例提供的非周期性上报TA信息的时序示意图。如图8所示，向下的实线箭头表示终端设备接收到PDSCH，向下的虚线箭头表示终端设备接收到PDCCH，向上的箭头表示终端设备发送PUSCH。
参见图8，终端设备通过PDSCH接收到配置信息，配置信息指示的是非周期性上报TA信息。在t1时刻，终端设备接收到用于调度PUSCH的PDCCH，该PDCCH中没有指示上报TA信息，因此，终端设备在本次调度的PUSCH中不上报TA信息。在t2时刻，终端设备接收到用于调度PUSCH的PDCCH，该PDCCH中指示了上报TA信息，因此，终端设备在本次调度的PUSCH中 上报TA信息。在t3时刻，终端设备接收到用于调度PUSCH的PDCCH，该PDCCH中指示了上报TA信息，因此，终端设备在本次调度的PUSCH中上报TA信息。
本实施例中，通过终端设备采用非周期性上报方式向网络设备上报TA信息，使得网络设备在需要时能够及时了解终端设备的TA值变化情况，有利于网络设备后续对终端设备的上行动态调度，使得网络设备在调度时更贴近终端设备的实时TA值而不用一直采用系统支持的最大TA值，这样能够减少调度时延，从而降低业务传输时延。进一步的，由于网络设备可以根据自己的需求，在需要获知终端设备的TA信息时，向终端设备发送第一指示信息，能够降低信令开销。
图9为本申请实施例提供的又一种通信方法的流程示意图。本实施例示例的是半持续性上报TA信息的过程。如图9所示，本实施例的方法可以包括：
S901：网络设备向终端设备发送配置信息，配置信息指示TA信息的上报方式为半持续性上报。
本实施例中，当采用半持续性上报方式时，TA信息可以承载在PUCCH资源上，还可以承载在PUSCH资源上。因此当配置信息指示半持续性上报时，还可以同时指示承载TA信息的物理信道。因此，本实施例包括如下两种情况：承载TA信息的物理信道为PUCCH、承载TA信息的物理信道为PUSCH。
当承载TA信息的物理信道为PUCCH时，TA信息承载在PUCCH资源上。该PUCCH资源可以是在配置信息中预先配置的。一个示例中，配置信息中包括下述信息中的至少一项：
时间信息，用于指示每次周期性上报TA信息的时间点；
资源信息，用于指示用于上报TA信息的PUCCH资源。
这样，终端设备根据配置信息可以确定出每次周期性上报TA信息的时间点，以及每次上报TA信息所占用的PUCCH资源。相应的，网络设备可以在相应的时间点和相应的PUCCH资源上接收TA信息。
可选的，时间信息可以包括下述信息中的至少一项：周期信息，用于指示TA信息的上报周期；偏移信息，用于指示每个周期内的时隙偏移。这样，根据周期信息和偏移信息可以确定出终端设备每次周期性上报TA信息的时间点。
可选的，配置信息中还可以包括：终端设备被配置的至少一个带宽部分(bandwidth part，BWP)，以及每个BWP对应的PUCCH资源。进一步的，在配置信息中还可以指示每个BWP所对应的用于上报TA信息的PUCCH资源。
当承载TA信息的物理信道为PUSCH时，TA信息承载在PUSCH资源上，该PUSCH资源可以是网络设备通过PDCCH动态调度的，还可以是网络设备为终端设备预先配置的(例如预先配置的CG资源)。
S902：网络设备向终端设备发送第二指示信息，第二指示信息用于指示开始上报TA信息。
本实施例中，终端设备接收到配置信息后，根据配置信息确定需要采用半持续性上报方式。则终端设备不会立即向网络设备上报TA信息，而是会等待网络设备发送的第二指示信息。相应的，网络设备会根据自己的需求，在需要获知终端设备的TA信息时，向终端设备发送第二指示信息。第二指示信息用于指示开始上报TA信息。或者说，第二指示信息用于指示激活半持续性TA信息上报。
可选的，第二指示信息可以通过MAC CE承载。示例性的，网络设备向终端设备发送下行PDSCH，在PDSCH中的MAC CE中承载第二指示信息。
可选的，第二指示信息可以通过PDCCH承载。例如，第二指示信息可以具体承载在PDCCH携带的DCI中。
示例性的，第二指示信息包括第三信息域，当第三信息域中的信息取值为1时，表示开始上报TA信息(或者说表示激活半持续性TA信息上报)。当第三信息域中的信息取值为0时，表示停止上报TA信息(或者说表示去激活半持续性TA信息上报)。
S903：终端设备开始周期性地向网络设备发送TA信息。
终端设备基于S902中接收到的第二指示信息，开始周期性地向网络设备上报TA信息。示例性的，若配置信息指示承载TA信息的物理信道为PUCCH，则终端设备根据配置信息中的时间信息和资源信息，周期性的通过PUCCH资源向网络设备上报TA信息。或者，若配置信息指示承载TA信息的物理信道为PUSCH，则终端设备周期性的通过PUSCH资源向网络设备上报TA信息。
需要说明的是，当承载TA信息的物理信道为PUSCH信息时，网络设备还可以周期性地调度PUSCH资源，使得终端设备可以周期性的在PUSCH资源上发送TA信息。或者，网络设备可以为终端设备预先配置PUSCH资源(例如CG资源)，使得终端设备可以周期性的在预配置的PUSCH资源上发送TA信息。
S904：网络设备向终端设备发送第二指示信息，第二指示信息用于指示停止上报TA信息。
当网络设备不需要获知终端设备的TA信息时，还可以向终端设备发送第二指示信息。第二指示信息用于指示停止上报TA信息，或者说，第二指示信息用于去激活半持续性TA信息上报。例如，第二指示信息的第三信息域中的信息被设置为0。
S905：终端设备停止向网络设备发送TA信息。
终端设备基于S904中接收到的第二指示信息，停止向网络设备周期性的发送TA信息。
下面结合图10和图11分别描述通过PUCCH资源半持续性上报TA信息和通过PUSCH资源半持续性上报TA信息的过程。
图10为本申请实施例提供的通过PUCCH资源半持续性上报TA信息的时序示意图。如图10所示，假设矩形框表示网络设备为终端设备配置的用于周期性上报TA信息的PUCCH资源，向上的箭头表示终端设备在PUCCH资源上发送TA信息，向下的箭头表示终端接收到PDSCH。
参见图10，终端设备通过PDSCH接收到配置信息，配置信息指示的是通过PUCCH资源半持续性上报TA信息。终端设备接收到配置信息后，不会立即开始通过PUCCH资源向网络设备发送TA信息。假设在t1时刻，终端设备接收到PDSCH，其中的MAC CE指示了开始上报TA信息，则终端设备开始周期性的通过预先配置的PUCCH资源向网络设备发送TA信息。相应的，网络设备可以周期性的从PUCCH资源上接收到TA信息。在t2时刻，终端设备接收到PDSCH，其中的MAC CE指示了停止上报TA信息，则终端设备停止通过PUCCH资源周期性的向网络设备发送TA信息。
图11为本申请实施例提供的通过PUSCH资源半持续性上报TA信息的时序示意图。如图11所示，向下的实线箭头表示终端设备接收到PDSCH，向下的虚线箭头表示终端设备接收到PDCCH，向上的箭头表示终端设备在PUSCH资源上发送TA信息。
参见图11，终端设备通过PDSCH接收到配置信息，配置信息指示的是通过PUSCH资源半持续性上报TA信息。终端设备接收到配置信息后，不会立即开始通过PUSCH资源向网络设备发送TA信息。假设在t1时刻，终端设备接收到PDCCH，该PDCCH指示了开始上报TA信息，则终端设备开始周期性的通过PUSCH资源向网络设备发送TA信息。相应的，网络设备可以周期性的从PUSCH资源上接收到TA信息。在t2时刻，终端设备接收到PDCCH，该PDCCH指示停止上报TA信息，则终端设备停止通过PUSCH资源周期性的向网络设备发送TA信息。
本实施例中，通过终端设备采用半持续性上报方式向网络设备上报TA信息，使得网络设备在需要时能够及时了解终端设备的TA值变化情况，有利于网络设备后续对终端设备的上行动态调度，使得网络设备在调度时更贴近终端设备的实时TA值而不用一直采用系统支持的最大TA值，这样能够减少调度时延，从而降低业务传输时延。进一步的，由于网络设备可以根据自己的需求，在需要获知终端设备的TA信息时，向终端设备发送第二指示信息，能够降低信令开销。
图12为本申请实施例提供的一种通信装置的结构示意图。该通信装置10可以设置在终端设备。请参见图12，该通信装置10包括接收模块11和发送模块12，其中，
接收模块11，用于从网络设备接收配置信息；
发送模块12，用于根据所述配置信息向所述网络设备发送定时提前TA信息，所述TA信息用于指示所述终端设备确定的TA值。
一种可能的实施方式中，所述配置信息用于指示下述信息中的至少一种：
TA信息的上报方式，所述上报方式为如下方式中的任一种：周期性上报、非周期性上报、半持续性上报；
承载TA信息的物理信道，所述物理信道为物理上行共享信道PUSCH或者物理上行控制信道PUCCH。
一种可能的实施方式中，所述配置信息用于指示下述情况中的任一种：
所述上报方式为周期性上报，承载TA信息的物理信道为PUCCH；或者，
所述上报方式为非周期性上报，承载TA信息的物理信道为PUSCH；或者，
所述上报方式为半持续性上报，承载TA信息的物理信道为PUCCH；或者，
所述上报方式为半持续性上报，承载TA信息的物理信道为PUSCH。
一种可能的实施方式中，若所述配置信息指示所述上报方式为非周期性上报，则所述接收模块11还用于：
从所述网络设备接收第一指示信息，所述第一指示信息用于指示是否发送TA信息。
一种可能的实施方式中，若所述配置信息指示承载述TA信息的物理信道为PUSCH，则所述第一指示信息通过物理下行控制信道PDCCH承载，所述PDCCH用于调度PUSCH资源，所述第一指示信息用于指示是否在被调度的PUSCH资源上发送TA信息。
一种可能的实施方式中，若所述配置信息指示所述上报方式为半持续性上报，则所述接收模块11还用于：
从所述网络设备接收第二指示信息，所述第二指示信息用于指示开始或者停止上报TA信息。
一种可能的实施方式中，所述第二指示信息通过媒质接入控制MAC控制单元CE承载，或者，通过PDCCH承载。
一种可能的实施方式中，若所述配置信息指示承载TA信息的物理信道为PUCCH信道，则所述配置信息包括下述信息中的至少一项：
时间信息，用于指示每次周期性上报TA信息的时间点；
资源信息，用于指示用于上报TA信息的PUCCH资源。
一种可能的实施方式中，所述时间信息包括下述信息中的至少一项：
周期信息，用于指示TA信息的上报周期；
偏移信息，用于指示每个周期内的时隙偏移。
一种可能的实施方式中，所述配置信息还包括：所述终端设备被配置的至少一个带宽部分BWP，以及每个所述BWP对应的PUCCH资源；
所述资源信息用于指示每个所述BWP所对应的用于上报TA信息的PUCCH资源。
一种可能的实施方式中，所述配置信息为无线资源控制RRC信令。
一种可能的实施方式中，所述TA信息包括所述TA值对应的索引。
一种可能的实施方式中，所述TA信息包括：第一TA值对应的索引或者第二TA值对应的索引；其中，所述第一TA值为所述终端设备确定的实时TA值，所述第二TA值为所述终端设备确定的实时TA值相对于最近一次上报的TA值的变化量。
图13为本申请实施例提供的另一种通信装置的结构示意图。在图12所示实施例的基础上，请参见图13，该通信装置10还包括处理模块13，其中，
处理模块13，用于根据所述终端设备的位置信息和所述网络设备的位置信息确定TA信息。
一种可能的实施方式中，所述处理模块13还用于：根据星历信息，确定所述网络设备的位置信息。
本申请实施例提供的通信装置可以执行上述方法实施例所述的技术方案，其实现原理以及有益效果类似，此处不再进行赘述。
图14为本申请实施例提供的又一种通信装置的结构示意图。该通信装置20可以设置在网络设备。请参见图14，该通信装置20包括发送模块21和接收模块22，其中，
发送模块，用于向终端设备发送配置信息；
接收模块，用于从所述终端设备接收定时提前TA信息，所述TA信息用于指示所述终端设备确定的TA值。
一种可能的实施方式中，所述配置信息用于指示下述信息中的至少一种：
TA信息的上报方式，所述上报方式为如下方式中的任一种：周期性上报、非周期性上报、半持续性上报；
承载TA信息的物理信道，所述物理信道为物理上行共享信道PUSCH或者物理上行控制信道PUCCH。
一种可能的实施方式中，所述配置信息用于指示下述情况中的任一种：
所述上报方式为周期性上报，承载TA信息的物理信道为PUCCH；或者，
所述上报方式为非周期性上报，承载TA信息的物理信道为PUSCH；或者，
所述上报方式为半持续性上报，承载TA信息的物理信道为PUCCH；或者，
所述上报方式为半持续性上报，承载TA信息的物理信道为PUSCH。
一种可能的实施方式中，所述配置信息指示所述上报方式为非周期性上报，所述发送模块21还用于：
向所述终端设备发送第一指示信息，所述第一指示信息用于指示是否发送TA信息。
一种可能的实施方式中，所述配置信息指示承载述TA信息的物理信道为PUSCH，所述第一指示信息通过物理下行控制信道PDCCH承载，所述PDCCH用于调度目标PUSCH资源，所述第一指示信息用于指示是否在所述目标PUSCH资源上发送TA信息。
一种可能的实施方式中，所述配置信息指示所述上报方式为半持续性上报，所述发送模块21还用于：
向所述终端设备发送第二指示信息，所述第二指示信息用于指示开始或者停止上报TA信息。
一种可能的实施方式中，所述第二指示信息通过媒质接入控制MAC控制单元CE承载，或者，通过PDCCH承载。
一种可能的实施方式中，所述配置信息指示承载TA信息的物理信道为PUCCH信道，所述配 置信息包括下述信息中的至少一项：
时间信息，用于指示每次周期性上报TA信息的时间点；
资源信息，用于指示用于上报TA信息的PUCCH资源。
一种可能的实施方式中，所述时间信息包括下述信息中的至少一项：
周期信息，用于指示TA信息的上报周期；
偏移信息，用于指示每个周期内的时隙偏移。
一种可能的实施方式中，所述配置信息还包括：所述终端设备被配置的至少一个带宽部分BWP，以及每个所述BWP对应的PUCCH资源；
所述资源信息用于指示每个所述BWP所对应的用于上报TA信息的PUCCH资源。
一种可能的实施方式中，所述配置信息为无线资源控制RRC信令。
一种可能的实施方式中，所述TA信息包括所述TA值对应的索引。
一种可能的实施方式中，所述TA信息包括：第一TA值对应的索引，或者，第二TA值对应的索引；
其中，所述第一TA值为所述终端设备确定的实时TA值，所述第二TA值为所述终端设备确定的实时TA值相对于最近一次上报的TA值的变化量。
图15为本申请实施例提供的终端设备的结构示意图。请参见图15，终端设备30可以包括：收发器31、存储器32、处理器33。收发器31可包括：发射器和/或接收器。该发射器还可称为发送器、发射机、发送端口或发送接口等类似描述，接收器还可称为接收器、接收机、接收端口或接收接口等类似描述。示例性地，收发器31、存储器32、处理器33，各部分之间通过总线34相互连接。
存储器32用于存储程序指令；
处理器33用于执行该存储器所存储的程序指令，用以使得终端设备30执行上述任一所示的通信方法。
其中，收发器31的接收器，可用于执行上述通信方法中终端设备的接收功能。收发器31的发送器，可用于执行上述通信方法中终端设备的发送功能。
图16为本申请实施例提供的网络设备的结构示意图。请参见图16，网络设备40可以包括：收发器41、存储器42、处理器43。收发器41可包括：发射器和/或接收器。该发射器还可称为发送器、发射机、发送端口或发送接口等类似描述，接收器还可称为接收器、接收机、接收端口或接收接口等类似描述。示例性地，收发器41、存储器42、处理器43，各部分之间通过总线44相互连接。
存储器42用于存储程序指令；
处理器43用于执行该存储器所存储的程序指令，用以使得网络设备40执行上述任一所示的通信方法。
其中，收发器41的发送器，可用于执行上述通信方法中网络设备的发送功能。
本申请实施例提供一种计算机可读存储介质，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上述通信方法。
本申请实施例还可提供一种计算机程序产品，该计算机程序产品可以由处理器执行，在计算机程序产品被执行时，可实现上述任一所示的终端设备执行的通信方法。
本申请实施例还可提供一种计算机程序产品，该计算机程序产品可以由处理器执行，在计算机程序产品被执行时，可实现上述任一所示的网络设备执行的通信方法。
本申请实施例的终端设备、计算机可读存储介质及计算机程序产品，可执行上述终端设备执行的通信方法，其具体的实现过程及有益效果参见上述，在此不再赘述。
本申请实施例的网络设备、计算机可读存储介质及计算机程序产品，可执行上述网络设备执行的通信方法，其具体的实现过程及有益效果参见上述，在此不再赘述。
实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一可读取存储器中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储器(存储介质)包括：只读存储器(英文：read-only memory，缩写：ROM)、RAM、快闪存储器、硬盘、固态硬盘、磁带(英文：magnetic tape)、软盘(英文：floppy disk)、光盘(英文：optical disc)及其任意组合。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理单元以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理单元执行的指令产生用于实现在流程图一个流 程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。
在本申请中，术语“包括”及其变形可以指非限制性的包括；术语“或”及其变形可以指“和/或”。本本申请中术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。本申请中，“多个”是指两个或两个以上。“和/或”，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。字符“/”一般表示前后关联对象是一种“或”的关系。

Claims (59)

  1. 一种通信方法，其特征在于，包括：
    终端设备从网络设备接收配置信息；
    所述终端设备根据所述配置信息向所述网络设备发送定时提前TA信息，所述TA信息用于指示所述终端设备确定的TA值。
  2. 根据权利要求1所述的方法，其特征在于，所述配置信息用于指示下述信息中的至少一种：
    TA信息的上报方式，所述上报方式为如下方式中的任一种：周期性上报、非周期性上报、半持续性上报；
    承载TA信息的物理信道，所述物理信道为物理上行共享信道PUSCH或者物理上行控制信道PUCCH。
  3. 根据权利要求2所述的方法，其特征在于，所述配置信息用于指示下述情况中的任一种：
    所述上报方式为周期性上报，承载TA信息的物理信道为PUCCH；或者，
    所述上报方式为非周期性上报，承载TA信息的物理信道为PUSCH；或者，
    所述上报方式为半持续性上报，承载TA信息的物理信道为PUCCH；或者，
    所述上报方式为半持续性上报，承载TA信息的物理信道为PUSCH。
  4. 根据权利要求2或3所述的方法，其特征在于，若所述配置信息指示所述上报方式为非周期性上报，则所述终端设备根据所述配置信息向所述网络设备发送定时提前TA信息之前，还包括：
    所述终端设备从所述网络设备接收第一指示信息，所述第一指示信息用于指示是否发送TA信息。
  5. 根据权利要求4所述的方法，其特征在于，若所述配置信息指示承载述TA信息的物理信道为PUSCH，则所述第一指示信息通过物理下行控制信道PDCCH承载，所述PDCCH用于调度PUSCH资源，所述第一指示信息用于指示是否在被调度的PUSCH资源上发送TA信息。
  6. 根据权利要求2或3所述的方法，其特征在于，若所述配置信息指示所述上报方式为半持续性上报，则所述终端设备根据所述配置信息向所述网络设备发送定时提前TA信息之前或之后，还包括：
    所述终端设备从所述网络设备接收第二指示信息，所述第二指示信息用于指示开始或者停止上报TA信息。
  7. 根据权利要求6所述的方法，其特征在于，所述第二指示信息通过媒质接入控制MAC控制单元CE承载，或者，通过PDCCH承载。
  8. 根据权利要求2至7任一项所述的方法，其特征在于，若所述配置信息指示承载TA信息的物理信道为PUCCH信道，则所述配置信息包括下述信息中的至少一项：
    时间信息，用于指示每次周期性上报TA信息的时间点；
    资源信息，用于指示用于上报TA信息的PUCCH资源。
  9. 根据权利要求8所述的方法，其特征在于，所述时间信息包括下述信息中的至少一项：
    周期信息，用于指示TA信息的上报周期；
    偏移信息，用于指示每个周期内的时隙偏移。
  10. 根据权利要求8所述的方法，其特征在于，所述配置信息还包括：所述终端设备被配置的至少一个带宽部分BWP，以及每个所述BWP对应的PUCCH资源；
    所述资源信息用于指示每个所述BWP所对应的用于上报TA信息的PUCCH资源。
  11. 根据权利要求1至10任一项所述的方法，其特征在于，所述配置信息为无线资源控制RRC信令。
  12. 根据权利要求1至11任一项所述的方法，其特征在于，所述TA信息包括所述TA值对应的索引。
  13. 根据权利要求1至12任一项所述的方法，其特征在于，所述TA信息包括：第一TA值对应的索引或者第二TA值对应的索引；
    其中，所述第一TA值为所述终端设备确定的实时TA值，所述第二TA值为所述终端设备确 定的实时TA值相对于最近一次上报的TA值的变化量。
  14. 根据权利要求1至13任一项所述的方法，其特征在于，所述终端设备根据所述配置信息向所述网络设备发送定时提前TA信息之前，还包括：
    所述终端设备根据所述终端设备的位置信息和所述网络设备的位置信息确定TA信息。
  15. 根据权利要求14所述的方法，其特征在于，所述终端设备根据所述终端设备的位置信息和所述网络设备的位置信息确定TA信息之前，还包括：
    所述终端设备根据星历信息，确定所述网络设备的位置信息。
  16. 一种通信方法，其特征在于，包括：
    网络设备向终端设备发送配置信息；
    所述网络设备从所述终端设备接收定时提前TA信息，所述TA信息用于指示所述终端设备确定的TA值。
  17. 根据权利要求16所述的方法，其特征在于，所述配置信息用于指示下述信息中的至少一种：
    TA信息的上报方式，所述上报方式为如下方式中的任一种：周期性上报、非周期性上报、半持续性上报；
    承载TA信息的物理信道，所述物理信道为物理上行共享信道PUSCH或者物理上行控制信道PUCCH。
  18. 根据权利要求17所述的方法，其特征在于，所述配置信息用于指示下述情况中的任一种：
    所述上报方式为周期性上报，承载TA信息的物理信道为PUCCH；或者，
    所述上报方式为非周期性上报，承载TA信息的物理信道为PUSCH；或者，
    所述上报方式为半持续性上报，承载TA信息的物理信道为PUCCH；或者，
    所述上报方式为半持续性上报，承载TA信息的物理信道为PUSCH。
  19. 根据权利要求17或18所述的方法，其特征在于，所述配置信息指示所述上报方式为非周期性上报，所述网络设备从终端设备接收定时提前TA信息之前，还包括：
    所述网络设备向所述终端设备发送第一指示信息，所述第一指示信息用于指示是否发送TA信息。
  20. 根据权利要求19所述的方法，其特征在于，所述配置信息指示承载述TA信息的物理信道为PUSCH，所述第一指示信息通过物理下行控制信道PDCCH承载，所述PDCCH用于调度目标PUSCH资源，所述第一指示信息用于指示是否在所述目标PUSCH资源上发送TA信息。
  21. 根据权利要求17或18所述的方法，其特征在于，所述配置信息指示所述上报方式为半持续性上报，所述网络设备从终端设备接收定时提前TA信息之前，还包括：
    所述网络设备向所述终端设备发送第二指示信息，所述第二指示信息用于指示开始或者停止上报TA信息。
  22. 根据权利要求21所述的方法，其特征在于，所述第二指示信息通过媒质接入控制MAC控制单元CE承载，或者，通过PDCCH承载。
  23. 根据权利要求17至22任一项所述的方法，其特征在于，所述配置信息指示承载TA信息的物理信道为PUCCH信道，所述配置信息包括下述信息中的至少一项：
    时间信息，用于指示每次周期性上报TA信息的时间点；
    资源信息，用于指示用于上报TA信息的PUCCH资源。
  24. 根据权利要求23所述的方法，其特征在于，所述时间信息包括下述信息中的至少一项：
    周期信息，用于指示TA信息的上报周期；
    偏移信息，用于指示每个周期内的时隙偏移。
  25. 根据权利要求23所述的方法，其特征在于，所述配置信息还包括：所述终端设备被配置的至少一个带宽部分BWP，以及每个所述BWP对应的PUCCH资源；
    所述资源信息用于指示每个所述BWP所对应的用于上报TA信息的PUCCH资源。
  26. 根据权利要求16至25任一项所述的方法，其特征在于，所述配置信息为无线资源控制 RRC信令。
  27. 根据权利要求16至26任一项所述的方法，其特征在于，所述TA信息包括所述TA值对应的索引。
  28. 根据权利要求16至27任一项所述的方法，其特征在于，所述TA信息包括：第一TA值对应的索引，或者，第二TA值对应的索引；
    其中，所述第一TA值为所述终端设备确定的实时TA值，所述第二TA值为所述终端设备确定的实时TA值相对于最近一次上报的TA值的变化量。
  29. 一种通信装置，其特征在于，包括：
    接收模块，用于从网络设备接收配置信息；
    发送模块，用于根据所述配置信息向所述网络设备发送定时提前TA信息，所述TA信息用于指示所述终端设备确定的TA值。
  30. 根据权利要求29所述的装置，其特征在于，所述配置信息用于指示下述信息中的至少一种：
    TA信息的上报方式，所述上报方式为如下方式中的任一种：周期性上报、非周期性上报、半持续性上报；
    承载TA信息的物理信道，所述物理信道为物理上行共享信道PUSCH或者物理上行控制信道PUCCH。
  31. 根据权利要求30所述的装置，其特征在于，所述配置信息用于指示下述情况中的任一种：
    所述上报方式为周期性上报，承载TA信息的物理信道为PUCCH；或者，
    所述上报方式为非周期性上报，承载TA信息的物理信道为PUSCH；或者，
    所述上报方式为半持续性上报，承载TA信息的物理信道为PUCCH；或者，
    所述上报方式为半持续性上报，承载TA信息的物理信道为PUSCH。
  32. 根据权利要求30或31所述的装置，其特征在于，若所述配置信息指示所述上报方式为非周期性上报，则所述接收模块还用于：
    从所述网络设备接收第一指示信息，所述第一指示信息用于指示是否发送TA信息。
  33. 根据权利要求32所述的装置，其特征在于，若所述配置信息指示承载述TA信息的物理信道为PUSCH，则所述第一指示信息通过物理下行控制信道PDCCH承载，所述PDCCH用于调度PUSCH资源，所述第一指示信息用于指示是否在被调度的PUSCH资源上发送TA信息。
  34. 根据权利要求30或31所述的装置，其特征在于，若所述配置信息指示所述上报方式为半持续性上报，则所述接收模块还用于：
    从所述网络设备接收第二指示信息，所述第二指示信息用于指示开始或者停止上报TA信息。
  35. 根据权利要求34所述的装置，其特征在于，所述第二指示信息通过媒质接入控制MAC控制单元CE承载，或者，通过PDCCH承载。
  36. 根据权利要求30至35任一项所述的装置，其特征在于，若所述配置信息指示承载TA信息的物理信道为PUCCH信道，则所述配置信息包括下述信息中的至少一项：
    时间信息，用于指示每次周期性上报TA信息的时间点；
    资源信息，用于指示用于上报TA信息的PUCCH资源。
  37. 根据权利要求36所述的装置，其特征在于，所述时间信息包括下述信息中的至少一项：
    周期信息，用于指示TA信息的上报周期；
    偏移信息，用于指示每个周期内的时隙偏移。
  38. 根据权利要求36所述的装置，其特征在于，所述配置信息还包括：所述终端设备被配置的至少一个带宽部分BWP，以及每个所述BWP对应的PUCCH资源；
    所述资源信息用于指示每个所述BWP所对应的用于上报TA信息的PUCCH资源。
  39. 根据权利要求29至38任一项所述的装置，其特征在于，所述配置信息为无线资源控制RRC信令。
  40. 根据权利要求29至39任一项所述的装置，其特征在于，所述TA信息包括所述TA值对 应的索引。
  41. 根据权利要求29至40任一项所述的装置，其特征在于，所述TA信息包括：第一TA值对应的索引或者第二TA值对应的索引；
    其中，所述第一TA值为所述终端设备确定的实时TA值，所述第二TA值为所述终端设备确定的实时TA值相对于最近一次上报的TA值的变化量。
  42. 根据权利要求29至41任一项所述的装置，其特征在于，所述装置还包括：
    处理模块，用于根据所述终端设备的位置信息和所述网络设备的位置信息确定TA信息。
  43. 根据权利要求42所述的装置，其特征在于，所述处理模块还用于：
    根据星历信息，确定所述网络设备的位置信息。
  44. 一种通信装置，其特征在于，包括：
    发送模块，用于向终端设备发送配置信息；
    接收模块，用于从所述终端设备接收定时提前TA信息，所述TA信息用于指示所述终端设备确定的TA值。
  45. 根据权利要求44所述的装置，其特征在于，所述配置信息用于指示下述信息中的至少一种：
    TA信息的上报方式，所述上报方式为如下方式中的任一种：周期性上报、非周期性上报、半持续性上报；
    承载TA信息的物理信道，所述物理信道为物理上行共享信道PUSCH或者物理上行控制信道PUCCH。
  46. 根据权利要求45所述的装置，其特征在于，所述配置信息用于指示下述情况中的任一种：
    所述上报方式为周期性上报，承载TA信息的物理信道为PUCCH；或者，
    所述上报方式为非周期性上报，承载TA信息的物理信道为PUSCH；或者，
    所述上报方式为半持续性上报，承载TA信息的物理信道为PUCCH；或者，
    所述上报方式为半持续性上报，承载TA信息的物理信道为PUSCH。
  47. 根据权利要求45或46所述的装置，其特征在于，所述配置信息指示所述上报方式为非周期性上报，所述发送模块还用于：
    向所述终端设备发送第一指示信息，所述第一指示信息用于指示是否发送TA信息。
  48. 根据权利要求47所述的装置，其特征在于，所述配置信息指示承载述TA信息的物理信道为PUSCH，所述第一指示信息通过物理下行控制信道PDCCH承载，所述PDCCH用于调度目标PUSCH资源，所述第一指示信息用于指示是否在所述目标PUSCH资源上发送TA信息。
  49. 根据权利要求45或46所述的装置，其特征在于，所述配置信息指示所述上报方式为半持续性上报，所述发送模块还用于：
    向所述终端设备发送第二指示信息，所述第二指示信息用于指示开始或者停止上报TA信息。
  50. 根据权利要求49所述的装置，其特征在于，所述第二指示信息通过媒质接入控制MAC控制单元CE承载，或者，通过PDCCH承载。
  51. 根据权利要求45至50任一项所述的装置，其特征在于，所述配置信息指示承载TA信息的物理信道为PUCCH信道，所述配置信息包括下述信息中的至少一项：
    时间信息，用于指示每次周期性上报TA信息的时间点；
    资源信息，用于指示用于上报TA信息的PUCCH资源。
  52. 根据权利要求51所述的装置，其特征在于，所述时间信息包括下述信息中的至少一项：
    周期信息，用于指示TA信息的上报周期；
    偏移信息，用于指示每个周期内的时隙偏移。
  53. 根据权利要求51所述的装置，其特征在于，所述配置信息还包括：所述终端设备被配置的至少一个带宽部分BWP，以及每个所述BWP对应的PUCCH资源；
    所述资源信息用于指示每个所述BWP所对应的用于上报TA信息的PUCCH资源。
  54. 根据权利要求44至53任一项所述的装置，其特征在于，所述配置信息为无线资源控制 RRC信令。
  55. 根据权利要求44至54任一项所述的装置，其特征在于，所述TA信息包括所述TA值对应的索引。
  56. 根据权利要求44至55任一项所述的装置，其特征在于，所述TA信息包括：第一TA值对应的索引，或者，第二TA值对应的索引；
    其中，所述第一TA值为所述终端设备确定的实时TA值，所述第二TA值为所述终端设备确定的实时TA值相对于最近一次上报的TA值的变化量。
  57. 一种终端设备，其特征在于，包括：收发器、处理器、存储器；
    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15任一项所述的通信方法。
  58. 一种网络设备，其特征在于，包括：收发器、处理器、存储器；
    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16至28任一项所述的通信方法。
  59. 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权利要求1至15任一项所述的通信方法，或者权利要求16至28任一项所述的通信方法。
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