WO2020063679A1 - 通信方法及装置 - Google Patents

通信方法及装置 Download PDF

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Publication number
WO2020063679A1
WO2020063679A1 PCT/CN2019/107892 CN2019107892W WO2020063679A1 WO 2020063679 A1 WO2020063679 A1 WO 2020063679A1 CN 2019107892 W CN2019107892 W CN 2019107892W WO 2020063679 A1 WO2020063679 A1 WO 2020063679A1
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WO
WIPO (PCT)
Prior art keywords
tracking area
terminal device
time
terminal
network device
Prior art date
Application number
PCT/CN2019/107892
Other languages
English (en)
French (fr)
Inventor
陈磊
李秉肇
许斌
王学龙
Original Assignee
华为技术有限公司
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19866842.8A priority Critical patent/EP3849255A4/en
Publication of WO2020063679A1 publication Critical patent/WO2020063679A1/zh
Priority to US17/209,655 priority patent/US20210212013A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/02—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration by periodical registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a communication method and device.
  • NTN non-terrestrial networks
  • base stations or base stations are deploying some functions of base stations or base stations on high-altitude platforms or satellites. Because high-altitude platforms or satellites are less affected by natural disasters and have a larger coverage area (such as areas such as the desert and the sea), the reliability of the communication system can be improved.
  • the satellite Take the satellite as a terminal to improve coverage as an example.
  • the satellite covers different areas of the ground through different beams.
  • one or several beams of the satellite can be understood as one or several cells.
  • a paging mechanism based on the Tracking Area is introduced.
  • TAU Tracking Area Update
  • the core network device sends a tracking area list (Tracking Area list, TA list) to the terminal.
  • TA list contains one or more TAs, and each TA contains multiple cells.
  • the terminal moves in the cell included in the TA list, the terminal does not need to perform TAU, and when the terminal has services arrived, the core network equipment pages the terminal in the TA list area.
  • the terminal moves out of the cell included in the TA list, the terminal needs to perform a TAU so that the core network device knows the TA in which the terminal is currently located.
  • the TAU mechanism of the above-mentioned traditional cellular network is directly applied to a non-terrestrial network, for example, in a Non-Geostationary Earth Orbit (NGEO) network, because the satellite moves at high speed, even if the terminal does not move or moves at a low speed, The serving cell of the terminal is also likely to change. As a result, the serving cell of the terminal is not a cell in the TA list, which triggers the terminal to frequently perform TAU, which increases the energy consumption of the terminal. It can be seen that the TAU mechanism of the traditional cellular network is not applicable to non-terrestrial networks such as NGEO.
  • NGEO Non-Geostationary Earth Orbit
  • Embodiments of the present application provide a communication method and device, which can prevent a terminal from frequently performing TAU in a non-terrestrial network, and reduce terminal energy consumption.
  • an embodiment of the present application provides a communication method, which is applied to a terminal or a terminal chip.
  • the method includes: a terminal device receiving tracking area information from an access network device, and identifying the second tracking area according to the Determine whether to perform TAU.
  • the tracking area information includes a first tracking area identifier and a second tracking area identifier.
  • the first tracking area identifier is a tracking area identifier of a first cell, and the second tracking area identifier is used for execution by the terminal device. Tracking area updates TAU.
  • a terminal acquires tracking area information from an access network device, and determines whether to perform TAU according to a second tracking area identifier.
  • the tracking area information includes a first tracking area identifier and a second tracking area identifier.
  • the first tracking area is a tracking area identifier of the first cell in which it is located, and the second tracking area identifier is used by the terminal to determine whether to perform TAU.
  • the high-altitude station moves at a high speed, it is likely to trigger the terminal to frequently perform TAU.
  • the serving cell of the terminal changes.
  • the cell may be located in the second tracking area corresponding to the second tracking area identifier. Therefore, the TAU may not be triggered, thereby reducing the frequency of the TAU and reducing the energy consumption of the terminal.
  • the tracking area information further includes a time parameter.
  • the determining, by the terminal device, whether to perform TAU according to the second tracking area identifier may be implemented as follows: the terminal device determines whether to perform TAU according to the time parameter and the second tracking area identifier.
  • the time parameter is used to configure a timer, and the timing duration of the timer is T.
  • the terminal device determines whether to perform TAU according to the time parameter and the second tracking area identifier, which may be specifically implemented as: when the timer expires, the terminal device according to the second tracking area identifier Determine whether to perform TAU.
  • the terminal device determines whether to perform TAU according to the second tracking area identifier, which may be specifically implemented as: when the timer times out, the terminal device determines whether the current tracking area is A second tracking area, if the tracking area where the terminal device is currently located is the second tracking area, the terminal device does not perform TAU; and / or, if the tracking area where the terminal device is currently located is not the second tracking area Zone, the terminal device performs TAU.
  • the second tracking area is a tracking area corresponding to the second tracking area identifier.
  • the terminal may further perform the following steps: the terminal device receives a paging message sent by an access network device.
  • receiving the tracking area information from the access network device by the terminal device may be specifically implemented as: the terminal device receives a system message broadcast by the access network device, and the system message carries the system message Tracking area information.
  • an embodiment of the present application provides a communication method, which is applied to an access network device or a chip of an access network device.
  • the method includes: the access network device sends tracking area information to the terminal device, where the tracking area information includes the first tracking area identifier and the second tracking area identifier.
  • the first tracking area identifier is a tracking area identifier of a first cell where the terminal device is located, and the second tracking identifier is used for the terminal device to perform TAU.
  • the access network device may further perform the following steps: the access network device determines the first tracking area identifier and the second tracking area identifier.
  • determining the first tracking area identifier and the second tracking area identifier by the access network device may be specifically implemented as: the access network device receives the first tracking area identifier from a core network device. A tracking area identifier and the second tracking area identifier, or the access network device is pre-configured with the first tracking area identifier and the second tracking area identifier.
  • the tracking area information further includes a time parameter, where the time parameter is used to configure a timer of the terminal, and the timing duration of the timer is T.
  • the access network device may further perform the following steps: the access network device receives a paging message from the core network device, and broadcasts the paging message.
  • the access network device sending tracking area information to the terminal device may be specifically implemented as: the access network device broadcasts a system message, and the system message carries the tracking area information.
  • the start time of the timer is the first time
  • the first time is when the terminal device camps on the first cell or switches to the first cell.
  • the second tracking area identifier is an identification of a tracking area that the terminal device expects to arrive when the timer times out.
  • an embodiment of the present application provides a communication method, which is applied to a core network device or a chip of a core network device.
  • the method includes:
  • the core network device receives service data corresponding to the terminal device at the second moment.
  • the core network device sends a paging message in the third tracking area TA, and the time interval between the second time and the third time is greater than the first time duration; or the core network device is in the fourth TA and / or at least one A paging message is sent within the fifth TA, and a time interval between the second moment and the third moment is less than or equal to a first duration.
  • the third time is before the second time, the time when the core network device determines the latest TA where the terminal device is located / the terminal device is registered by the core network device or the latest time performed by the terminal device TAU moment.
  • a core network device when a core network device receives service data corresponding to a terminal at a second moment, it can initiate paging in different TAs based on different situations. Specifically, if the time interval between the second time and the third time is greater than the first time, the core network device sends a paging message in the third TA. If the time interval between the second time and the third time is less than or equal to the first time , The core network device sends a paging message in the first TA and / or at least one second TA.
  • the core network device can only send a paging message in a third TA, that is, the core network device can be in a smaller area. Initiate paging to reduce paging signaling overhead.
  • the core network device may initiate paging in at least one TA to increase the probability of successful paging.
  • the third TA is a TA where the terminal device is located at the second moment
  • the fourth TA is a TA where the terminal device is located at the third moment
  • each The fifth TA is a TA that the terminal device expects to arrive every interval of the first duration from the third time.
  • the core network device if the core network device does not page the terminal device, the core network device is in one or more TAs adjacent to the fourth TA and / or at least one fifth A paging message is sent in one or more TAs adjacent to each fifth TA in the TA.
  • an embodiment of the present application provides a communication method, which is applied to a terminal or a chip of a terminal.
  • the method includes: the terminal device receives the RNA information from the access network device, and determines whether to perform the RNAU according to the second RNA identifier.
  • the RNA information includes a first RNA identifier and a second RNA identifier, the first RNA identifier is an RNA identifier of a fifth cell where the terminal device is located, and the second RNA identifier is used by the terminal device to perform RNAU. .
  • the RNA information further includes a time parameter.
  • the determining, by the terminal device, whether to perform RNAU according to the second RNA identifier may be specifically implemented as follows: the terminal device determines whether to perform RNAU according to the time parameter and the second RNA identifier.
  • the time parameter is used to configure a timer, and the timing duration of the timer is T.
  • the determining, by the terminal device, whether to perform RNAU according to the time parameter and the second RNA identifier may be specifically implemented as follows: when the timer expires, the terminal device determines whether to perform RNAU according to the second RNA identifier.
  • the terminal device determines whether to perform RNAU according to the second RNA identifier, which may be specifically implemented as follows: when the timer expires, the terminal device determines whether the current RNA is the second RNA. RNA, if the terminal device's current RNA is the second RNA, the terminal device does not perform RNAU; and / or, if the terminal device's current RNA is not the second RNA, the terminal device Perform RNAU.
  • the second RNA is an RNA corresponding to the second RNA identifier.
  • the terminal device may further perform the following steps: the terminal device receives a paging message sent by an access network device.
  • the terminal device receiving the RNA information from the access network device may be specifically implemented as follows: the terminal device receives a system message broadcast by the access network device, and the system message carries the RNA information.
  • an embodiment of the present application provides a communication method, and the method is applied to an access network device or a chip of an access network device.
  • the method includes: an access network device sends RNA information to a terminal device, where the RNA information includes the first RNA identifier and a second RNA identifier, wherein the first RNA identifier is a RNA identification, and the second routing identification is used by the terminal device to perform RNAU.
  • the access network device sending the RNA information to the terminal device may be specifically implemented as: the access network device broadcasts a system message, and the system message carries the RNA information.
  • the access network device may further perform the following steps: the access network device receives service data corresponding to the terminal device at the fifth moment.
  • the access network device sends a paging message in a third RNA, and the time interval between the fifth time and the sixth time is greater than the second time; or, the access network device sends a paging message in the fourth RNA and / or at least one A paging message is sent in the fifth RNA, and a time interval between the fifth moment and the sixth moment is less than or equal to a second duration.
  • the sixth time is a time before the fifth time when the access network device determines the latest RNA where the terminal device is located.
  • the third RNA is an RNA where the terminal device is located at the fifth moment
  • the fourth RNA is an RNA where the terminal device is located at the sixth moment
  • each The fifth RNA is the RNA that the terminal device is expected to arrive every second time interval from the sixth moment.
  • the access network device if the access network device does not page the terminal device, the access network device is adjacent to one or more RNAs and / or at least one of the fourth RNA in the fourth RNA.
  • Each fifth RNA in the fifth RNA sends a paging message in one or more RNAs adjacent to the fifth RNA.
  • the RNA information further includes a time parameter, where the time parameter is used to configure a timer of the terminal, and the timing duration of the timer is T.
  • the start time of the timer is the fourth time, and the fourth time is the time when the terminal device resides in the fifth cell or switches to the fifth cell, or the terminal device enters an inactive state Time at which the terminal device performs TAU.
  • the second RNA identifier is an identifier of the RNA that the terminal device expects to arrive when the timer times out.
  • an embodiment of the present application provides a communication device, including:
  • a receiving module configured to receive tracking area information from an access network device, where the tracking area information includes a first tracking area identifier and a second tracking area identifier, and the first tracking area identifier is a A tracking area identifier, where the second tracking area identifier is used by the terminal device to perform a tracking area update TAU; a processing module is used to determine whether to perform a TAU according to the second tracking area identifier.
  • the tracking area information further includes a time parameter
  • the processing module is configured to determine whether to perform TAU according to the second tracking area identifier, and includes: determining whether to perform TAU according to the time parameter and the second tracking area identifier.
  • the time parameter is used to configure a timer, and the timing duration of the timer is T.
  • the execution module configured to determine whether to perform a TAU according to the time parameter and the second tracking area identifier, includes:
  • a start time of the timer is a first time
  • the first time is a time when the terminal device resides in the first cell or switches to the first cell, or The time when the terminal device enters an inactive state or the time when the terminal device performs TAU.
  • the second tracking area identifier is different from the first tracking area identifier.
  • the execution module is configured to determine whether to perform TAU based on the second tracking area identifier, and includes: determining whether the current tracking area is the second tracking area when the timer expires.
  • the second tracking area is a tracking area corresponding to the second tracking area identifier; if the tracking area where the terminal device is currently located is the second tracking area, the terminal device does not perform TAU; and / or, If the tracking area where the terminal device is currently located is not the second tracking area, the terminal device performs TAU.
  • the receiving module is further configured to receive a paging message sent by an access network device.
  • the receiving module is configured to receive tracking area information from an access network device, and includes: receiving a system message broadcast by the access network device, where the system message carries the tracking area information.
  • an embodiment of the present application provides a communication device, including:
  • a sending module configured to send tracking area information to a terminal device, where the tracking area information includes the first tracking area identifier and the second tracking area identifier, wherein the first tracking area identifier is a first location where the terminal device is located; A tracking area identifier of the cell, and the second tracking identifier is used by the terminal device to perform a tracking area update TAU.
  • the communication device further includes a determining module, configured to determine the first tracking area identifier and the second tracking area identifier.
  • the determining module is configured to determine the first tracking area identifier and the second tracking area identifier, and includes: receiving the first tracking area identifier and all addresses from a core network device.
  • the second tracking area identifier, or the access network device is pre-configured with the first tracking area identifier and the second tracking area identifier, and the first tracking area identifier and the first tracking area identifier are determined according to pre-configured information. Second tracking area identification.
  • the tracking area information further includes a time parameter, where the time parameter is used to configure a timer of the terminal, and the timing duration of the timer is T.
  • a start time of the timer is a first time
  • the first time is a time when the terminal device resides in the first cell or switches to the first cell, or The time when the terminal device enters an inactive state or the time when the terminal device performs TAU.
  • the second tracking area identifier is different from the first tracking area identifier.
  • the communication device further includes a broadcasting module.
  • the receiving module is further configured to receive, by the access network device, a paging message from a core network device.
  • a broadcasting module configured to broadcast the paging message.
  • the sending module is configured to send tracking area information, including: for broadcasting a system message, and the system message carries the tracking area information.
  • an embodiment of the present application provides a communication device, where the communication device includes:
  • a receiving module configured to receive service data corresponding to a terminal device at a second moment
  • a sending module configured to send a paging message in the third tracking area TA, where the time interval between the second time and the third time is greater than the first time duration; or send in the fourth TA and / or at least one fifth TA For a paging message, the time interval between the second moment and the third moment is less than or equal to the first duration.
  • the third time is before the second time, the time when the core network device determines the latest TA where the terminal device is located or the terminal device performs registration through the core network device, or the terminal device performs Time of the last tracking area update TAU.
  • the third TA is a TA where the terminal device is located at the second moment
  • the fourth TA is a TA where the terminal device is located at the third moment
  • each The fifth TA is a TA that the terminal device expects to arrive every interval of the first duration from the third time.
  • a sending module is configured to: if the core network device does not page the terminal device, then one or more TAs adjacent to the fourth TA and / or at least one fifth A paging message is sent in one or more TAs adjacent to each fifth TA in the TA.
  • an embodiment of the present application provides a communication device having the function of implementing the communication method in any one of the above aspects.
  • This function can be realized by hardware, and can also be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • a communication device including: a processor and a memory; the memory is configured to store a computer execution instruction, and when the communication device is running, the processor executes the computer execution instruction stored in the memory to enable the communication
  • the device performs the communication method according to any one of the above aspects.
  • a communication device including: a processor; the processor is coupled to a memory and reads an instruction in the memory, and then executes the communication method according to any one of the foregoing aspects according to the instruction.
  • a computer-readable storage medium stores instructions that, when run on a computer, enable the computer to execute the communication method of any one of the above aspects.
  • a computer program product containing instructions which when executed on a computer, enables the computer to execute the communication method of any one of the above aspects.
  • a fourteenth aspect provides a circuit system including a processing circuit configured to perform a communication method as in any one of the above aspects.
  • a chip includes a processor, and the processor is coupled to a memory.
  • the memory stores program instructions.
  • the program instructions are implemented when the program instructions stored in the memory are executed by the processor.
  • the communication method according to any one of the aspects.
  • a communication system in a sixteenth aspect, includes a terminal device in any of the above aspects, an access network device in any aspect, and a core network device in any aspect.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 3 is a flowchart of a communication method according to an embodiment of the present application.
  • FIG. 5 is a flowchart of a communication method according to an embodiment of the present application.
  • FIG. 6 is a flowchart of a communication method according to an embodiment of the present application.
  • FIG. 7 is a flowchart of a communication method according to an embodiment of the present application.
  • FIG. 8 is a schematic scenario diagram of a communication method according to an embodiment of the present application.
  • FIG. 9 is a schematic scenario diagram of a communication method according to an embodiment of the present application.
  • FIG. 10 is a schematic scenario diagram of a communication method according to an embodiment of the present application.
  • FIG. 11 is a schematic scenario diagram of a communication method according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a possible communication system applicable to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of another possible communication system applicable to the embodiment of the present application.
  • FIG. 15 is a schematic diagram of a BWP according to an embodiment of the present application.
  • 16 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 17 is a schematic diagram of a bandwidth size of an initial BWP and RAR CORESET according to an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a device according to an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of another device according to an embodiment of the present application.
  • FIG. 20 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • first and “second” in the specification of the present application and the drawings are used to distinguish different objects, or to distinguish different processes on the same object, rather than to describe a specific order of the objects.
  • the terms “including” and “having” as well as any variations of them mentioned in the description of the present application are intended to cover non-exclusive inclusion.
  • a process, method, system, product, or device that contains a series of steps or units is not limited to the listed steps or units, but optionally also includes other steps or units not listed, or optionally also Include other steps or units inherent to these processes, methods, products, or equipment.
  • words such as “exemplary” or “for example” are used as examples, illustrations or illustrations.
  • the system includes an access network device, multiple terminal devices that communicate with the access network device, and a core network device that communicates with the access network device. (Only one is shown as an example in the figure).
  • the communication system shown in FIG. 1 can be applied to the current Long Term Evolution (LTE) or Advanced Long Term Evolution (LTE-A) system, and it can also be applied to the 5G network currently being developed or the future In other networks, of course, it can also be applied to a system of LTE and 5G hybrid networking, or other systems, which are not specifically limited in the embodiments of the present application.
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • the core network device referred to in the embodiments of the present application is a device deployed in the core network to provide services to terminals.
  • the names of core network devices with similar wireless communication functions may be different.
  • the core network device may be an access and mobility management function (AMF, Access and Mobility Management Function).
  • AMF Access and Mobility Management Function
  • MME Mobility Management Entity
  • the core network equipment For the convenience of description only, in the embodiments of the present application, the foregoing devices that can provide services to terminals are collectively referred to as core network equipment.
  • An access network device is a device that is deployed in a wireless access network to provide wireless communication functions.
  • the access network equipment involved in this embodiment of the present application may be a ground station deployed on land, or a high-altitude station deployed at high altitude.
  • a high-altitude station refers to a satellite station or a high-altitude platform equipped with wireless communication functions, or other forms of communication equipment deployed in the high-altitude.
  • the wireless communication function of the ground station or part of the wireless communication function of the ground station may be deployed in the high-altitude station.
  • the ground stations involved in the embodiments of the present application include, for example, but not limited to, various types of macro base stations, micro base stations (also referred to as small stations), relay stations, and transmission and reception points (TRP).
  • First-generation network nodes gNodeB, gNB
  • evolved NodeB ng-eNB
  • WLAN wireless local area network
  • Terminal equipment is mainly used to receive or send data.
  • the terminals involved in the embodiments of the present application may include, for example, but not limited to, various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem; also Can include subscriber unit, cellular phone, smart phone, wireless data card, personal digital assistant (PDA) computer, tablet computer, handheld device, knee A laptop computer, a machine type communication (MTC) terminal, a user equipment (UE), and the like.
  • PDA personal digital assistant
  • MTC machine type communication
  • UE user equipment
  • the terminal device may also be referred to as a terminal, which will be collectively described herein and will not be described in detail hereinafter.
  • the core network equipment, ground station, satellite station, and multiple terminals form a communication system.
  • terminals 1 to 6 can send uplink data or signaling to a ground station, and a ground base station can receive uplink data or signaling sent by terminals 1 to 6 respectively.
  • the ground station may send downlink data or signaling to the terminal 1 to terminal 6, and the terminal 1 to terminal 6 may receive downlink data or signaling from the ground station.
  • the terminals 4 to 6 can also constitute a sub-communication system.
  • the terminals 4, 5, and 6 can communicate identically.
  • one of the three terminals can also be used as a relay node to transmit information between the ground station and other terminals. For example, when the hotspot is turned on by the terminal 5, the terminal 4 and the terminal 6 can perform information interaction with the ground station through the hotspot of the terminal 5.
  • the terminals 7 to 9 can perform information interaction between the satellite station and the core network equipment to ensure the normal execution of services.
  • the communication system shown in FIG. 1 may further include a gateway, and the core network device may communicate with the satellite station through the gateway.
  • the communication system includes multiple satellite stations, multiple ground stations, and multiple core network devices.
  • FIG. 1 only illustrates one ground station, one satellite station, and one core network device by way of example.
  • all or part of the network elements in FIG. 1 may be physical physical network elements or virtualized network elements, which is not limited herein.
  • the communication system architecture and service scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • Those of ordinary skill in the art may know that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • the terminal, the access network device, and the core network device in FIG. 1 may be implemented by multiple devices, respectively.
  • the access network device and the core network device may also be implemented by one device, for example, the access network device and the core network device are implemented as different functional modules in one device, which is not specifically limited in the embodiment of the present application.
  • the foregoing function module may be a network element in a hardware device, a software function running on a hardware device, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • FIG. 2 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present application.
  • the communication device 200 includes at least one processor 201, a communication line 202, a memory 203, and at least one communication interface 204.
  • the processor 201 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the program of the solution of the present application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 202 may include a path for transmitting information between the aforementioned components.
  • the communication interface 204 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area networks
  • the memory 203 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM-ready-only memory (EEPROM)), compact disc (read-only memory (CD-ROM)) or other optical disk storage, optical disk storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory may exist independently, and is connected to the processor through the communication line 202. The memory can also be integrated with the processor.
  • the memory 203 is configured to store computer execution instructions for executing the solutions of the embodiments of the present application, and the processor 201 controls the execution.
  • the processor 201 is configured to execute computer execution instructions stored in the memory 203, so as to implement the communication method provided in the following embodiments of the present application.
  • the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2.
  • the communication device 200 may include multiple processors, such as the processor 201 and the processor 205. Each of these processors may be a single-CPU processor or a multi-CPU processor.
  • a processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (such as computer program instructions).
  • FIG. 2 only shows an exemplary hardware structure diagram of a communication device.
  • the communication device 200 may further include other components. Limitation.
  • the above-mentioned communication device 200 may be a general-purpose device or a special-purpose device.
  • the communication device 200 may be a device having a similar structure as in FIG. 2.
  • the embodiment of the present application does not limit the type of the communication device 200.
  • An embodiment of the present application provides a communication method, and the communication method is applied in a process of performing location management on a terminal.
  • the communication method includes the following steps:
  • the access network device sends tracking area information to the terminal device.
  • the terminal device receives the tracking area information from the access network device.
  • the tracking area information includes a first tracking area identifier and a second tracking area identifier, the first tracking area identifier is a tracking area identifier of a first cell where the terminal device is located, and the second tracking area identifier is the terminal.
  • the identifier of the tracking area that the device expects to arrive when the timer times out, and the second tracking area identifier is used by the terminal device to perform TAU.
  • the tracking area information further includes a time parameter.
  • the time parameter is used to configure a timer.
  • the timing duration of the timer is T1
  • the start time of the timer is the first time.
  • the time parameters can also be pre-configured in the terminal. After receiving the first tracking area identifier and the second tracking area identifier sent by the access network device, the terminal may start a timer at the first moment according to a pre-configured time parameter.
  • the first moment is related to a state of the terminal.
  • the first time is the time when the idle terminal device resides in the first cell, or the first time is the time when the connected terminal switches to the first cell or the terminal device The moment of entering the inactive state or the moment when the terminal device performs TAU.
  • the terminal device receives the tracking area information from the access network device, and there may be multiple implementations.
  • the terminal device receives a system message broadcast by the access network device, and the system message carries the tracking area information.
  • the terminal device receives Radio Resource Control (RRC) signaling from the access network device, and the RRC signaling carries tracking area information.
  • RRC Radio Resource Control
  • the terminal may also acquire the tracking area information in other ways, and the embodiment of the present application does not limit the specific implementation manner of the terminal acquiring the tracking area information.
  • a terminal in an idle state receives a system message broadcasted by an access network device.
  • the system message carries tracking area information
  • the tracking area information includes a first tracking area identifier, a second tracking area identifier, and a time parameter.
  • the terminal learns that the tracking area identifier of the first cell is the first tracking area identifier, and learns that the timer needs to be started at the first moment according to the time parameter, and the timer has a timing duration of T1.
  • the first time is the time when the terminal camps on the first cell. Subsequently, the terminal may start a timer at the time of camping on the first cell.
  • a connected terminal receives RRC signaling sent by an access network device.
  • the RRC signaling carries tracking area information, and the tracking area information includes a first tracking area identifier, a second tracking area identifier, and Time parameter.
  • the terminal learns that the tracking area identifier of the first cell is the first tracking area identifier, and learns that the timer needs to be started at the first moment according to the time parameter, and obtains the tracking area identifier that is expected to arrive when the timer times out according to the second tracking area identifier.
  • the first time is the time when the terminal switches to the first cell.
  • the terminal may start a timer at the moment of switching to the first cell.
  • the connected terminal can also obtain the tracking area information by reading the system message broadcasted by the access network device, so that the timer can be started at the moment of switching to the first cell.
  • the first tracking area identifier and the second tracking area identifier in the access network device may be pre-configured.
  • the management platform of the access network device may send the first tracking area identifier and the second tracking area identifier to the access network device in advance, and the access network device stores the first tracking area identifier and the second tracking area identifier.
  • the management platform may be a virtual management module, or a functional module in an access network device, or may be an entity or a virtual device with corresponding functions.
  • the management platform calculates the moving distance of the high-altitude station according to the moving speed and moving time of the high-altitude platform or satellite station (can be collectively referred to as the high-altitude station), and combines the moving trajectory of the high-altitude station to calculate the TA expected by the terminal at different times. .
  • the management platform may calculate that the terminal is expected to be located at the TA1 to which the serving cell 1 belongs at time 1, the terminal is expected to be located at the TA2 to which the serving cell 2 belongs at time 2, and the terminal is expected to be located at the TA3 to which the serving cell 3 belongs at time 3.
  • the TA where the terminal is expected to be at a certain moment refers to the TA where the management platform expects the terminal to be at that moment.
  • the trajectory and speed of the high-altitude station are relatively fixed, and the trajectory and speed of the terminal are highly random. Therefore, in scenarios such as the terminal moving fast, the management platform expects the terminal to be at that moment.
  • the TA is not the same as the TA where the terminal is actually located at that moment.
  • the management platform may also send the calculated first tracking area identifier and second tracking area identifier to the core network device, so that the core network device can know the TA where the terminal is expected to be located at different times.
  • the access network device obtains the first tracking area identifier and the second tracking area identifier from the core network device.
  • the core network device may calculate the TA of the terminal at different times, and send the first tracking area identifier and the second tracking area identifier to the access network device.
  • the method of calculating the TA where the terminal of the core network device is located refer to the related description of calculating the TA by the management platform, which will not be repeated here.
  • the terminal device determines whether to perform TAU according to the second tracking area identifier.
  • S302 may be implemented as steps S3021 to S3023:
  • the terminal device determines whether the current tracking area is the second tracking area. If the current tracking area where the terminal device is currently located is the second tracking area, S3022 is performed. If the tracking area where the device is currently located is not the second tracking area, step S3023 is performed.
  • the second tracking area is a tracking area corresponding to the second tracking area identifier.
  • the terminal can know the tracking area where the timer expires.
  • the terminal device does not perform TAU.
  • the core network device can know the TA that the terminal is expected to be at different times. Based on this, if the terminal reaches the expected TA, that is, the second TA from the first TA where the first cell is located within the timing duration T1, it is not necessary to perform TAU. In other words, at the time when the timer expires, the actual TA of the terminal is the same as the expected TA, which is equivalent to the core network device having learned that the terminal is actually at that time, and the terminal does not need to perform TAU.
  • the terminal device performs TAU.
  • TAU During the timing period T1, if the terminal does not reach the expected TA (that is, the second TA) from the first TA to which the first cell belongs, TAU is performed. In other words, when the timer expires, the terminal ’s actual TA is not the same as the expected TA. The core network device does not know the terminal ’s actual TA at this moment. At this time, the terminal needs to perform a TAU so that the core network device can learn TA where the terminal is actually located.
  • a terminal acquires tracking area information from an access network device, and determines whether to perform TAU according to a second tracking area identifier.
  • the tracking area information includes a first tracking area identifier and a second tracking area identifier.
  • the first tracking area is a tracking area identifier of a first cell in which the tracking area is located, and the second tracking area identifier is used by the terminal to determine whether to perform TAU.
  • the serving cell of the terminal changes, due to the new service of the terminal.
  • the cell may be in the second tracking area corresponding to the second tracking area identifier. Therefore, the TAU may not be triggered, thereby reducing the frequency of the TAU and reducing the energy consumption of the terminal.
  • An embodiment of the present application further provides a communication method, which is applied in a process in which a core network device pages a terminal. As shown in FIG. 5, the communication method includes the following steps:
  • the core network device receives service data corresponding to the terminal device at a second moment.
  • the core network device receives service data corresponding to the terminal sent by an application server (such as a WeChat application server) at a second moment.
  • an application server such as a WeChat application server
  • the core network device determines whether the time interval between the second time and the third time is greater than the first time duration. If the time interval between the second time and the third time is greater than the first time duration, then execute S503. If the time interval is less than or equal to the first duration, step S504 is performed.
  • the first duration is the timing duration T1 of the timer mentioned above.
  • the third time is a time before the second time when the core network device determines the latest TA where the terminal device is located.
  • the third time may be the time when the terminal device performs registration through the core network device or the last TAU performed by the terminal device.
  • the terminal sends a registration message to the access network device, the access network device records the time when the registration message is received, uses the time as the third time, and notifies the core network of the third time device.
  • the access network device after receiving the registration message, sends the registration message to the core network device, and the core network device records the time when the registration message is received, and uses the time as the third time.
  • the terminal performs TAU the terminal sends a TAU message to the access network device.
  • the access network device records the time when the TAU message is received, uses this time as the third time, and notifies the core network device of the third time.
  • the access network device sends the TAU message to the core network device, and the core network device records the time when the TAU message is received, and uses the time as the third time.
  • the third time can also be determined in other ways, and the embodiment of the present application does not limit the method for determining the third time.
  • S301 and S302 are optional steps.
  • the third time is the time when the terminal registers with the core network device, the method flow shown in FIG. 5 may not include S301 and S302.
  • the core network device sends a paging message in the third TA.
  • the access network device receives a paging message sent by the core network device.
  • the core network device sends a paging message in the third TA, it means that the core network device sends a paging message to all access network devices in the third TA.
  • the paging message contains the terminal identification.
  • the third TA is the TA where the terminal device is located at the second moment.
  • the terminal executes the latest TAU at the third time, and the core network device determines that the latest TA where the terminal is located is the fourth TA. After that, the core network device initiates paging to the terminal at the second moment triggered by the service data. If the time interval between the second time and the third time is greater than the timing time T1, it means that the time from the third time to the timing time T1 has not triggered the terminal to perform TAU, which means that the time period T1 is extended from the third time
  • the actual TA of the terminal is the same as the expected TA, which indicates that the accuracy of the expected TA calculated by the core network equipment (or the management platform mentioned above) is high.
  • the core network device sends a paging message in the calculated expected TA, that is, the third TA.
  • the core network device may calculate the expected TA according to the moving speed, moving trajectory, and moving time of the high-altitude station. For specific calculation methods, refer to the foregoing, and details are not described herein again.
  • the core network device sends a paging message in a fourth TA and / or at least one fifth TA.
  • the access network device receives a paging message sent by the core network device.
  • the core network sends the paging message in the fourth TA and / or at least one fifth TA, which means that the core network device sends the paging message to the fourth TA and / or All access network devices in at least one fifth TA send a paging message.
  • the meaning of the core network device sending a paging message in one or more TAs can be referred to the description here.
  • the fourth TA is the TA where the terminal device is located at the third moment.
  • Each fifth TA is a TA that the terminal device is expected to arrive at every first time interval from the third time.
  • the first fifth TA may be a TA that is expected to arrive at an interval timing duration T1 from the third moment
  • the second fifth TA may be a TA that is expected to arrive at an interval timing T1 from the third moment.
  • the timing duration T1 may be the same or different.
  • the first T1 takes 10ms and the second T1 takes 30ms.
  • the first fifth TA is the TA that the terminal expects to arrive at an interval of 10 ms from the third moment; the second fifth TA is the TA that the terminal expects to arrive at an interval of 30 ms (10 ms + 20 ms) from the third moment.
  • the core network device may initiate paging in the fourth TA and / or at least one fifth TA.
  • the core network device may initiate paging only in the fourth TA. In this way, when the terminal moves slowly or the terminal does not move, the core network device may successfully page, and since the core network device is only in the Initiating paging within a TA can save paging signaling overhead.
  • the core network device may initiate paging in the fourth TA and a fifth TA. In this way, when the terminal moves slowly or the terminal does not move, the core network device may successfully page, and may Save paging signaling overhead.
  • the core network device can also initiate paging in the fourth TA and multiple fifth TAs. In this way, even if the terminal moves fast, since the core network device initiates paging in multiple TAs, the paging success can be increased. The probability.
  • the core network device does not page the terminal device, the core network device is in one or more TAs adjacent to the fourth TA and / or at least one of the fifth TA adjacent to or Paging messages are sent within multiple TAs.
  • the access network device receives a paging message sent by the core network device.
  • the core network device determines that the terminal is not paged. At this time, the core network device may initiate paging in another TA. Exemplarily, the core network device may initiate paging only in one or more TAs adjacent to the fourth TA. In this way, when the terminal moves slowly or the terminal does not move, the core network device may successfully page, And can save the paging signaling overhead.
  • the core network device may initiate paging in one or more TAs adjacent to the fourth TA and one or more TAs adjacent to the fifth TA.
  • the core network device may also be one or more TAs adjacent to the fourth TA and a plurality of fifth TAs adjacent to the TA (such as one or more TAs adjacent to the first fifth TA, and the first Paging is initiated within one or more of the two fifth TAs.
  • the core network device can send paging messages in different areas.
  • the core network equipment can also send paging messages in the following areas:
  • the core network device may also be in the fourth TA and / or one or more TAs adjacent to the fourth TA Send a paging message.
  • the core network device may initiate paging only in the fourth TA to save paging signaling overhead.
  • the core network device initiates paging in one or more TAs adjacent to the fourth TA.
  • the core network device may also initiate search in the fourth TA and one or more TAs adjacent to the fourth TA. call.
  • S505 may be replaced by, if the core network device does not page the terminal device, the core network device is at least one fifth TA and / or at least one fifth TA adjacent to one or more A paging message is sent within the TA.
  • the core network device initiates paging in the first fifth TA.
  • the core network device initiates paging in the first fifth TA and one or more TAs adjacent to the first fifth TA.
  • S504 can also be replaced by, if the time interval between the second moment and the third moment is less than or equal to the first duration, the core network device is in at least one fifth TA and / or at least one fifth TA phase.
  • a paging message is sent within one or more neighboring TAs.
  • S505 can be replaced by: if the time interval between the second time and the third time is less than or equal to the first time, the core network device may also be in the fourth TA and / or one or more TAs adjacent to the fourth TA Send a paging message.
  • the core network device may also be in the fourth TA and / or one or more TAs adjacent to the fourth TA, and at least one fifth The paging message is sent within one or more TAs adjacent to the TA and / or at least one fifth TA.
  • the core network device may also choose to initiate paging in other areas, and the embodiment of the present application does not limit the area where the core network device initiates paging.
  • the access network device broadcasts a paging message.
  • the terminal receives a paging message sent by the access network device.
  • An access network device broadcasts a paging message, which refers to an access network device sending a paging message to a terminal it manages.
  • a paging message refers to an access network device sending a paging message to a terminal it manages.
  • the specific meaning of the paging message broadcast by the access network device in the following can also refer to the description here.
  • the paging message includes a terminal identifier.
  • the terminal listens to a paging message containing its own identity, it can further parse the paging message to learn that service data has arrived.
  • the core network device when it receives service data corresponding to the terminal at the second moment, it can initiate paging in different TAs based on different situations. Specifically, if the time interval between the second time and the third time is greater than the first time, the core network device sends a paging message in the third TA. If the time interval between the second time and the third time is less than or equal to the first time , The core network device sends a paging message in the first TA and / or at least one second TA.
  • the core network device can only send a paging message in a third TA, that is, the core network device can be in a smaller area. Initiate paging to reduce paging signaling overhead.
  • the core network device may initiate paging in at least one TA to increase the probability of successful paging.
  • An embodiment of the present application further provides a communication method, which is applied in a process of performing location management on a terminal.
  • the communication method includes the following steps:
  • the access network device sends a radio access network-based notification area (RNA) information to the terminal device.
  • RNA radio access network-based notification area
  • the terminal device receives the RNA information from the access network device.
  • the RNA information includes a first RNA identifier and a second RNA identifier, the first RNA identifier is an RNA identifier of a fifth cell where the terminal device is located, and the second RNA identifier is the terminal device in the timer
  • the ID of the RNA that is expected to arrive when the timeout expires, and the second RNA ID is used by the terminal device to perform Ran-based notification area update (RNAU).
  • the RNA information also includes a time parameter.
  • the time parameter is used to configure a timer.
  • the timing duration of the timer is T2, and the start time of the timer is the fourth time.
  • the time parameter can also be configured in the terminal in advance.
  • the fourth moment is related to the state of the terminal.
  • the fourth time is the time when the idle terminal device resides in the fifth cell, or the fourth time is the time when the connected terminal switches to the fifth cell, or the terminal The moment when the device enters the inactive state or the moment when the terminal equipment performs TAU.
  • the terminal device receives the RNA information from the access network device.
  • the terminal device receives a system message broadcast by the access network device, and the system message carries the RNA information.
  • the terminal device receives RRC signaling from the access network device, and the RRC signaling carries RNA information.
  • the terminal may also obtain RNA information through other methods, and the embodiment of the present application does not limit the specific implementation manner of the terminal to obtain RNA information.
  • the first RNA identifier and the second RNA identifier in the access network device may be pre-configured.
  • the management platform of the access network device may send the first RNA identifier and the second RNA identifier to the access network device in advance, and the access network device stores the first RNA identifier and the second RNA identifier.
  • the management platform calculates the moving distance of the high-altitude station according to the moving speed and moving time of the high-altitude station, and combines the moving trajectory of the high-altitude station to calculate the RNA that the terminal is expected to be at different times.
  • the access network device can also calculate the RNA that the terminal is expected to be at different times.
  • the terminal device determines whether the current RNA is the second RNA. If the current RNA of the terminal device is the second RNA, execute S6022. If it is not the second RNA, S6023 is performed.
  • the second RNA is an RNA corresponding to the second RNA identifier.
  • the terminal can learn the RNA where the timer expires.
  • the terminal device does not perform RNAU.
  • the access network device can know the RNA that the terminal is expected to be at different times. Based on this, if the terminal reaches the expected RNA from the first RNA where the fifth cell is located, that is, the second RNA, within the timing period T2, it is not necessary to perform RNAU. That is, at the time when the timer expires, the actual RNA of the terminal is consistent with the expected RNA, which is equivalent to the access network device having learned that the terminal is actually at that time, and the terminal does not need to perform RNAU.
  • the terminal device performs RNAU.
  • the RNAU is performed.
  • the actual RNA of the terminal is not consistent with the expected RNA, and the access network device does not know the actual RNA of the terminal at that time.
  • the terminal needs to perform RNAU to access the network. The device knows where the terminal is actually located.
  • a terminal obtains RNA information from an access network device, and determines whether to perform RNAU according to a second RNA identifier.
  • the RNA information includes a first RNA identifier and a second RNA identifier.
  • the first RNA is an RNA identifier of the fifth cell
  • the second RNA identifier is an identifier of the RNA that the terminal is expected to arrive after a certain time.
  • the high-altitude station moves at a high speed, it is likely to trigger the terminal to frequently perform RNAU.
  • the serving cell of the terminal changes.
  • the cell may be located in the second RNA corresponding to the second RNA identifier. Therefore, the RNAU may not be triggered, thereby reducing the frequency of the RNAU and reducing the energy consumption of the terminal.
  • An embodiment of the present application further provides a communication method, which is applied in a process in which an access network device pages a terminal.
  • the communication method includes the following steps:
  • the access network device receives service data corresponding to the terminal device at the fifth moment.
  • the access network device receives service data corresponding to the terminal sent by an application server (such as a WeChat application server) at the fifth moment.
  • an application server such as a WeChat application server
  • the access network device determines whether the time interval between the fifth time and the sixth time is greater than the second time duration. If the time interval between the fifth time and the sixth time is greater than the second time duration, the process proceeds to S703. If the time interval of the moment is less than or equal to the second duration, step S704 is performed.
  • the second duration is the timing duration T2 of the timer mentioned above.
  • the sixth time is a time before the fifth time when the access network device determines the latest RNA where the terminal device is located.
  • the sixth time may be the time of the latest RNAU performed by the terminal device.
  • the terminal sends an RNAU message to the access network device, and the access network device records the time when the RNAU message is received, and uses this time as the sixth time. Or, the moment when the access network device releases the terminal to the inactive state is the sixth moment.
  • the sixth time may also be determined in other manners, and the embodiment of the present application does not limit the manner of determining the sixth time.
  • S601 and S602 are optional steps.
  • the access network device sends a paging message in a third RNA.
  • the terminal receives a paging message sent by the access network device.
  • the paging message includes a terminal identifier.
  • the third RNA is the RNA where the terminal device is located at the fifth moment.
  • the terminal executes the latest RNAU at the sixth time, and the access network device determines that the latest RNA where the terminal is located is the fourth RNA. After that, the access network device initiates paging to the terminal at the fifth moment. If the time interval between the fifth time and the sixth time is greater than the timing duration T2, it means that the timer has not been triggered to execute RNAU from the sixth time until the timer expires, which means that the actual RNA of the terminal is consistent with the expected RNA. It indicates that the accuracy of the expected RNA calculated by the access network device (or the management platform mentioned above) is high.
  • the access network device sends a paging message in the calculated expected RNA, that is, the third RNA.
  • the access network device may calculate the expected RNA according to the moving speed, moving trajectory, and moving time of the high-altitude station. For specific calculation methods, refer to the foregoing, and details are not described herein again.
  • the access network device sends a paging message in a fourth RNA and / or at least one fifth RNA.
  • the terminal receives a paging message sent by the access network device.
  • the fourth RNA is the RNA where the terminal device is located at the sixth moment.
  • Each fifth RNA is an RNA that the terminal device is expected to arrive every second time interval from the sixth moment.
  • the first fifth RNA may be an RNA that is expected to arrive at an interval of time T2 from the sixth time
  • the second fifth RNA may be an RNA that is expected to arrive at an interval of T2 from the sixth time.
  • the timing duration T2 may be the same or different.
  • the first T2 takes 10ms and the second T2 takes 30ms.
  • the first fifth RNA is an RNA that is expected to arrive at an interval of 10 ms from the sixth moment
  • the second fifth RNA is an RNA that is expected to arrive at an interval of 30 ms (10 ms + 20 ms) from the sixth moment.
  • the access network device may initiate paging within the fourth RNA and / or at least one fifth RNA.
  • the access network device may only initiate paging in the fourth RNA. In this way, when the terminal moves slowly or the terminal does not move, the access network device may page successfully, and because the access network The device initiates paging in only one RNA, which can save the paging signaling overhead.
  • the access network device may initiate paging within the fourth RNA and one fifth RNA.
  • the access network device may also initiate paging within the fourth RNA and multiple fifth RNAs.
  • the access network device If the access network device does not page the terminal device, the access network device is located at one or more RNAs adjacent to the fourth RNA and / or at least one fifth RNA adjacent to the terminal device. Send a paging message within one or more RNAs.
  • the terminal receives a paging message sent by the access network device.
  • the access network device may initiate paging only in one or more RNAs adjacent to the fourth RNA.
  • the access network device may initiate paging within one or more RNAs adjacent to the fourth RNA and one or more RNAs adjacent to the fifth RNA.
  • the access network device may also include one or more RNAs adjacent to the fourth RNA and a plurality of fifth RNAs adjacent to the RNA (such as one or more RNAs adjacent to the first fifth RNA, and The second fifth RNA is adjacent to one or more RNAs).
  • the access network device may initiate paging in different RNAs based on different situations at the fifth moment. Specifically, if the time interval between the fifth time and the sixth time is greater than the second time, the access network device sends a paging message in the third RNA, and if the time interval between the fifth time and the sixth time is less than or equal to the second time For the duration, the access network device sends a paging message in the first RNA and / or at least one second RNA. On the one hand, when the time interval between the fifth time and the sixth time is greater than the second time, the access network device may send a paging message in only one third RNA, thereby reducing the paging signaling overhead. On the other hand, in a case where the time interval between the fifth moment and the sixth moment is less than or equal to the second duration, the access network device may initiate paging in at least one RNA, thereby increasing the probability of successful paging.
  • the network element in the embodiment of the present application includes a hardware structure and / or a software module corresponding to each function.
  • the embodiments of this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is performed by hardware or computer software-driven hardware depends on the specific application of the technical solution and design constraints. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the technical solutions of the embodiments of the present application.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above integrated unit may be implemented in the form of hardware or in the form of software functional unit. It should be noted that the division of the units in the embodiments of the present application is schematic, and is only a logical function division. There may be another division manner in actual implementation.
  • FIG. 12 shows a schematic block diagram of a communication apparatus provided in an embodiment of the present application.
  • the communication apparatus may be the foregoing terminal, an access network device, or a core network device.
  • the communication device 1200 may exist in the form of software or a chip that can be used in a device.
  • the communication device 1200 includes a processing unit 1202 and a communication unit 1203.
  • the communication device 1200 may further include a storage unit 1201 for storing program code and data of the communication device 1200.
  • the data may include, but is not limited to, original data or intermediate data.
  • the processing unit 1202 may be used to support the terminal to execute S302 in FIG. 3, FIG. 5, S3021, S3022 or S3023 in FIG. 4, S6021, S6022 or S6023 in FIG. 6, and S602 in FIG. 7. Etc., and / or other processes for the schemes described herein.
  • the communication unit 1203 is configured to support communication between the terminal and other network elements (such as the access network device described above), for example, to support the terminal to execute S301 in FIG. 3, FIG. 4, FIG. 5, S506 in FIG. 5, FIG. 6, After S601 in FIG. 7, S703 or S704 in FIG. 7, and S703 or S704 in FIG. 7 are not paged to the terminal, the terminal is supported to execute S705 in FIG. 7, and so on.
  • the processing unit 1202 may be used to support the access network device to perform S701 and S702 in FIG. 7 and / or other processes used in the scheme described herein.
  • the communication unit 1203 is configured to support communication between the access network device and other network elements (such as the above-mentioned core network device or terminal).
  • the communication unit 1203 supports the access network device to perform S301 and FIG. 5 in FIG. 3, FIG. 4, and FIG.
  • the access network device supports S505, S506 in Figure 5, S601 in Figure 6, Figure 7, Figure S703, or Figure S703 in Figure 7.
  • S704 after performing S703 in FIG. 7 or S704 is not paged to the terminal, support the terminal to execute S705 in FIG. 7 and the like.
  • the processing unit 1202 may be used to support the core network device to perform S501 and S502 in FIG. 5 and / or other processes used in the scheme described herein.
  • the communication unit 1203 is configured to support communication between the core network device and other network elements (such as the access network device described above), for example, supporting the core network device to execute S503 or S504 in FIG. 5 and performing S503 or S504 in FIG. 5. After paging to the terminal, support the core network equipment to execute S505 and so on.
  • the processing unit 1202 may be a controller or the processor 401 or the processor 405 shown in FIG. 4, for example, it may be a central processing unit (CPU), a general-purpose processor, and digital signal processing ( Digital Signal Processing (DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any of them combination. It may implement or execute various exemplary logical blocks, modules, and circuits described in connection with the present disclosure.
  • the processor may also be a combination that implements computing functions, such as a combination including one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication unit 1203 may be a transceiver, a transceiver circuit, or the communication interface 404 shown in FIG. 4 and the like.
  • the storage unit 1201 may be a memory 403 shown in FIG. 4.
  • a communication method, device and system are also provided.
  • the detailed description of the communication method is as follows:
  • NR's system bandwidth is large, at least 100MHz. Due to different capabilities of terminal devices, the maximum bandwidth supported is also different. Some terminal devices may only support 80MHz, 40MHz, or 20MHz, or even smaller bandwidths. Therefore, in general, in order to meet the requirement of the maximum bandwidth supported by the terminal equipment in NR, the concept of a bandwidth part (BWP) is introduced.
  • BWP bandwidth part
  • the BWP is currently configured for the terminal device to meet the maximum bandwidth that the terminal device can support.
  • the BWPs with different bandwidths can be configured for the terminal equipment.
  • the base station broadcasts a synchronous signal block (SSB) to allow the terminal device to camp.
  • the SSB carries a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH physical broadcast channel
  • the PBCH carries a master system information block (master information block, MIB).
  • the MIB includes configuration information of a control resource set (CORESET) 0 (such as the bandwidth size and frequency domain position of CORESET0), and configuration information of a physical downlink control channel (physical downlink control channel, PDCCH) of SIB1 (such as PDCCH Time domain configuration information, etc.).
  • CORESET control resource set
  • PDCCH physical downlink control channel
  • SIB1 such as PDCCH Time domain configuration information, etc.
  • the terminal device After receiving the MIB, the terminal device determines that the bandwidth of the initial BWP (initial BWP) is the bandwidth of CORESET0, and then receives the scheduling information of SIB1 on the initial BWP, and receives SIB1 on the initial BWP according to the scheduling information of the SIB1.
  • the bandwidth of CORESET0 configured in the MIB is usually small, but in the prior art, in order to enable the terminal equipment to meet the needs of the service, the SIB1 carries a bandwidth parameter, which is used for It is used to indicate the initial reset bandwidth of BWP. After receiving the SIB1, the terminal device adjusts the bandwidth of the initial BWP according to the bandwidth parameter, so that the terminal device works on the initial BWP with the reset bandwidth.
  • the reset bandwidth of the initial BWP is larger than the bandwidth of the CORESET0. Therefore, when the terminal device works in the initial BWP of the reset bandwidth, for idle terminal devices, it is easy to increase the terminal size. The power consumption of the device reduces the performance of the terminal device.
  • embodiments of the present application provide a communication method, device, and system, which are helpful to improve the flexibility of the terminal device to adjust the bandwidth of the initial BWP, thereby improving the performance of the terminal device.
  • LTE long term evolution
  • LTE-A long term evolution
  • eLTE enhanced long-term In evolution systems
  • WiFi wireless fidelity
  • wimax worldwide microwave interoperability
  • 3GPP third Generation Partnership Project
  • FIG. 13 it is a schematic architecture diagram of a possible communication system applicable to the embodiment of the present application.
  • the communication system shown in FIG. 13 includes a network device and a terminal device.
  • the number of network devices and the number of terminal devices in the communication system is not limited in the embodiments of the present application, and the communication system applicable to the embodiments of the present application may include other devices such as the core network in addition to the network devices and the terminal devices.
  • the device, the wireless relay device, the wireless backhaul device, and the like are not limited in this embodiment of the present application.
  • the network device in the embodiment of the present application may integrate all functions in one independent physical device, or may distribute functions in multiple independent physical devices, which is not limited in the embodiment of the present application.
  • the terminal device in the embodiment of the present application may be connected to the network device in a wireless manner. It should also be noted that the terminal device in the embodiment of the present application may be fixed or movable.
  • FIG. 13 is only an architectural schematic diagram of a communication system.
  • a terminal device may send uplink data to a network device, and the network device may send downlink data to the terminal device.
  • a communication system may also be composed of terminal devices.
  • the architecture of the communication system can be as shown in FIG. 14, including network equipment, terminal equipment 1, terminal equipment 2, and terminal equipment 3.
  • the network equipment can send downlink data to terminal equipment 1, terminal equipment 2, and terminal equipment 3.
  • Terminal equipment 1 can Send downlink data to terminal device 2 and terminal device 3.
  • the embodiments of the present application can also be applied to a communication system composed of a terminal device 1, a terminal device 2, and a terminal device 3.
  • terminal equipment 1 may be equivalent to the network equipment in the embodiment of the present application
  • terminal equipment 2 and terminal equipment 3 are equivalent to the terminal equipment in the embodiment of the present application.
  • the network device in the embodiment of the present application is an entity for transmitting or receiving signals on the access network side, and may be used to connect a terminal device to a communication system.
  • the network device may be a base station (node B), an evolved base station (eNB), a base station in 5G, a base station in a future mobile communication system, or a connection in a wireless fidelity (WiFi) system.
  • the ingress node, etc. does not limit the specific technology and specific equipment form used by the network equipment.
  • the terminal device in the embodiment of the present application is an entity for transmitting or receiving signals on the user side, and may also be referred to as a terminal, a user equipment (UE), a mobile station (MS), or a mobile device.
  • Terminal mobile terminal, MT
  • the terminal device may be a mobile phone, a tablet, a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, or an industrial control device.
  • wireless terminal in industrial control wireless terminal in self driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, transportation safety
  • the wireless terminal in the wireless terminal, the wireless terminal in the smart city, the wireless terminal in the smart home, etc. are not limited thereto.
  • network equipment and terminal equipment in the embodiments of the present application can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water; it can also be deployed on air planes, balloons, and artificial satellites, etc.
  • the application scenarios of network equipment and terminal equipment are not limited.
  • communication between a network device and a terminal device and between the terminal device and the terminal device may be performed through a licensed spectrum (unlicensed spectrum), and communication may be performed through an unlicensed spectrum (unlicensed spectrum), or may Communication is performed through licensed spectrum and unlicensed spectrum, which is not limited.
  • Communication between radio access network equipment and terminal equipment and between terminal equipment and terminal equipment can be performed through a spectrum below 6 gigahertz (gigahertz, GHz), communication can also be performed through a spectrum above 6 GHz, and it can also use below 6 GHz Communication with the spectrum above 6GHz.
  • the embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.
  • Frequency domain resources refer to physical resources used for communication in the frequency domain.
  • the frequency domain resource may be a BWP, a resource block, or the like.
  • BWP The BWP in the implementation of this application refers to a continuous or discontinuous frequency domain resource, where the bandwidth of this continuous or discontinuous frequency domain resource is less than or equal to the maximum bandwidth supported by the terminal device in the frequency domain, and can be used for Transmission of physical channel information or physical signal information.
  • the physical channel information includes physical uplink and downlink control channel information and physical uplink and downlink shared channel information.
  • BWP1 is a continuous frequency domain resource in the entire communication system bandwidth
  • BWP2 is a discontinuous frequency domain resource in the entire communication system bandwidth.
  • BWP2 includes BWP20 and BWP21, and between BWP20 and BWP21 Is discontinuous. It should be noted that BWPs of different terminal devices may or may not overlap in the frequency domain, which is not limited.
  • Initial BWP The initial BWP in the embodiments of the present application may also be called initial BWP.
  • the initial BWP may be an initial downlink BWP (referred to as an initial downlink BWP), and may be used to carry SIB1 and the like.
  • the terminal device in the idle state in the embodiments of the present application may also be called idle UE. It should be noted that, in the idle (idle) state, there is no connection between the terminal device and the network side. For example, the terminal device is in the idle state when it is powered on.
  • the terminal device in the inactive state in the embodiments of the present application may also be referred to as an inactive UE. It should be noted that in the inactive state, there is no connection between the terminal device and the network device on the access network side, but for the terminal device, between the network device on the access network side and the network device on the core network side A corresponding connection exists.
  • Terminal equipment in the connected state The terminal device in the connected state in the embodiments of the present application may also be referred to as an active UE. It should be noted that, in the active (connected) state, both the terminal device and the network side are connected. Moreover, in the active state, the terminal can transmit data to and from network devices.
  • the terminal device determines the initial BWP bandwidth according to the bandwidth parameters configured by the network device. For example, after receiving the MIB on the PBCH, the terminal device determines that the bandwidth size of the initial BWP is the bandwidth size of the MIB including CORESET0. Then the terminal device receives SIB1 on the initial BWP of the bandwidth size of CORESET0. In the prior art, in order to meet the needs of the service, SIB1 carries the reset parameter of the initial BWP bandwidth size, and then the terminal device resets the initial value according to the reset parameter BWP bandwidth. However, for a terminal device, after the terminal device receives the SIB1, if the initial BWP bandwidth is reset according to the reset parameter, the power consumption of the terminal device may increase.
  • the adjustment method based on the foregoing initial BWP bandwidth size results in an increase in power consumption of the terminal device. Therefore, for the terminal device, the method of adjusting the bandwidth of the initial BWP only based on the bandwidth of the initial BWP indicated by the bandwidth parameter has poor flexibility, which may result in poor performance of the terminal device.
  • FIG. 17 an example of a relationship between an initial BWP and a bandwidth size of a RAR CORESET is provided according to an embodiment of the present application.
  • this application provides another embodiment.
  • the terminal device determines and adjusts the bandwidth of the initial BWP in different states.
  • the communication system architecture shown in FIG. 13 is taken as an example to describe the embodiment of the present application in detail below. Specifically, as shown in FIG. 16, on the one hand, the communication method in this embodiment of the present application mainly includes the following steps:
  • the terminal device receives a master information block (MIB) broadcasted by a network device, the MIB includes a first bandwidth parameter, and the first bandwidth parameter is used to indicate that an initial bandwidth portion of the terminal device BWP is a first bandwidth ;
  • MIB master information block
  • SIB system information block
  • a bandwidth size of the initial BWP is a first bandwidth or a second bandwidth
  • the terminal device determines that the bandwidth of the initial BWP is the first bandwidth or the second bandwidth, and includes: the terminal device determines that the bandwidth of the initial BWP is the first bandwidth; where , The terminal device is in an idle state or an inactive state.
  • the method further includes: the terminal device receiving first control information sent by the network device.
  • the method further includes:
  • the terminal device re-determines a bandwidth size of an initial BWP of the terminal device as a second bandwidth; wherein the terminal device supports the second bandwidth. It should be noted here that "redetermining" is only used to express that after determining that the bandwidth size of the initial BWP is the first bandwidth, the terminal device determines whether it is necessary to switch the first BWP according to the received first control information.
  • One bandwidth is the second bandwidth, which can be technically understood as “determining” or "determining handover" by the terminal device.
  • the first control information is radio resource control (RRC) reconfiguration information; or the first control information is an RRC recovery message or a conflict resolution message, and the terminal device is in an inactive state.
  • RRC radio resource control
  • the first control information includes first indication information, and the first indication information is used to indicate whether the terminal device adjusts a bandwidth size of an initial BWP; the method further includes:
  • the terminal device determines, according to the first indication information, that the bandwidth size of the initial BWP is the first bandwidth or the second bandwidth; the first indication information is carried in dedicated RRC signaling.
  • the first control information does not include dedicated BWP configuration information.
  • the first control information includes configuration information of a dedicated BWP, and the method further includes that: an initial BWP bandwidth of the terminal device is a first bandwidth.
  • the first bandwidth size is larger than the second bandwidth size.
  • the terminal device determines, according to the system information, that the bandwidth of the initial BWP is the first bandwidth or the second bandwidth, and the method includes: determining, by the terminal device, the bandwidth according to whether the first bandwidth is supported.
  • the bandwidth of the initial BWP is the first bandwidth or the second bandwidth.
  • the terminal device supports the first bandwidth, and determines the bandwidth size of the initial BWP as the first bandwidth; for another example, the terminal device does not support the first bandwidth, and determines the bandwidth size of the initial BWP as the first bandwidth A second bandwidth; wherein the terminal device is in a connected state.
  • the communication method in this embodiment of the present application mainly includes the following steps:
  • the network device generates a MIB, where the MIB includes a first bandwidth parameter, and the first bandwidth parameter is used to indicate that an initial bandwidth portion of the terminal device has a bandwidth size of a first bandwidth; the network device generates an SIB, and the SIB includes a second bandwidth Parameter, the second bandwidth parameter is used to indicate that the bandwidth of the initial bandwidth part BWP of the terminal device is the second bandwidth; the network device broadcasts the MIB and SIB.
  • the network device further sends the first control information to the terminal device.
  • the first control information is a first RRC reconfiguration message after the terminal device initially accesses.
  • the first control information is an RRC recovery message or a conflict resolution message; wherein the terminal device is in an inactive state.
  • the first control information includes first indication information, and the first indication information is used to indicate whether the terminal device adjusts a bandwidth size of an initial BWP.
  • the method further includes: the terminal device reselects and determines that the bandwidth size of the initial BWP is the first bandwidth or the second bandwidth according to the first indication information; and the first indication information is carried on a dedicated RRC signaling.
  • Step 1601 The network device generates system information.
  • the system information includes a master information block (master information block (MIB)) and a system information block (system information block (SIB)).
  • MIB master information block
  • SIB system information block
  • the MIB includes a first bandwidth parameter, and the first bandwidth parameter is used to indicate that a bandwidth size of an initial bandwidth part BWP of the terminal device is a first bandwidth.
  • the SIB includes a second bandwidth parameter, and the second bandwidth parameter is used to indicate that the bandwidth of the initial bandwidth part BWP of the terminal device is the second bandwidth;
  • the first bandwidth parameter is a configuration parameter in the MIB for scheduling the downlink physical control channel of SIB1, and it may indicate the bandwidth of the control resource set CORESET0, and the first bandwidth refers to the bandwidth of CORESET0.
  • the SIB may be SIB1 or other system information blocks, which is not limited in this regard.
  • the initial BWP for the terminal device refers to the initial BWP for carrying downlink data sent by the network device to the terminal device.
  • Step 1602 The network device broadcasts system information.
  • the frequency domain resource used to carry the system information is the initial BWP.
  • the bandwidth of the initial BWP is the first bandwidth.
  • Step 1603 The terminal device determines the bandwidth of the initial BWP. Specifically, the terminal device receives the system information on the initial BWP of the first bandwidth. It should be noted that after receiving the system information, the terminal device determines the bandwidth size of the initial BWP to ensure better communication between the terminal devices, and accordingly adjusts the bandwidth size of the initial BWP used for the current communication accordingly.
  • the bandwidth size of the initial BWP used by the terminal device for current communication is the bandwidth size of the initial BWP carrying system information.
  • step 1603 is explained in detail in combination with different status conditions of the terminal device.
  • the terminal device is in a connected state, and according to whether the terminal device supports the second bandwidth, it is determined that the bandwidth of the initial BWP is the first bandwidth or the second bandwidth. Specifically, if the terminal device supports the second bandwidth, it is determined that the bandwidth of the initial BWP is the second bandwidth. If the terminal device does not support the second bandwidth, it is determined that the bandwidth of the initial BWP is the first bandwidth. Therefore, when the terminal device is in the connected state, if the terminal device works on the initial BWP of the first bandwidth when receiving the system information, if the terminal device supports the second bandwidth, the terminal device will change the initial BWP bandwidth from the first bandwidth. The size is adjusted to the second band bandwidth.
  • the terminal device adjusts the radio frequency of the transceiver from the second bandwidth to the first bandwidth. It should be noted that the terminal device is in a connected state, which may be when the terminal device switches to a new cell, or at another time, which is not limited herein.
  • the terminal device determines that the bandwidth size of the initial BWP is the first bandwidth size.
  • the bandwidth size of the initial BWP may be adjusted from the first bandwidth size to the first bandwidth size according to the state change of the terminal device or other possible factors or conditions. Two bandwidth sizes.
  • the bandwidth size of the initial BWP is determined to be the second bandwidth size.
  • the terminal device may cause the terminal device to enter the connected state from an idle state or an inactive state when there is a service (receiving a call, making a call, etc.).
  • the initial BWP of the first bandwidth cannot be supported. After entering the connected state, the initial BWP of the first bandwidth can still be used, and the network equipment does not obtain the capability information of the terminal equipment. If the initial BWP size of this terminal device is considered to be the second bandwidth, it will cause the data sent by the network device and the terminal device cannot receive it. Therefore, after the network device receives the capability information of the terminal device, it is necessary to determine the initial terminal device BWP size and inform the terminal device. It should be noted that the network device can obtain the capability information of the terminal device from the core network device, the capability information of the terminal device from other network devices, and the capability information of the terminal device from the terminal device, which is not limited herein.
  • the network device After the network device obtains the capability information of the terminal device, it needs to inform the terminal device so that the terminal device knows that the network device already knows its capability information, and the terminal device can reselect to determine the initial value based on whether it supports the second bandwidth BWP bandwidth.
  • the network device sends the first control information to the terminal device, and the terminal device reselects to determine that the bandwidth size of the initial BWP of the terminal device is the second bandwidth size.
  • the terminal device may determine, according to the first control information, that a bandwidth size of an initial BWP of the terminal device is a second bandwidth size.
  • the first control message is used to inform the terminal device that the network device already knows the terminal device capability information.
  • the form of the first control information may be various and is not limited herein.
  • the first control information sent by the network device to the terminal device may be the first RRC reconfiguration message after the terminal device initially accesses.
  • the network device will request the capability information of the terminal device from the core network device or other network devices. If the request is successful, the terminal device will complete the initial access The network device already knows the capability information of the terminal device, but if the request is unsuccessful, the network device needs to request the capability information from the terminal device after the terminal device completes the initial access. In both cases, after obtaining the capability information of the terminal device, the network device sends an RRC reconfiguration message to the terminal device.
  • the first control information sent by the network device to the terminal device may be an RRC recovery message or a conflict resolution message, where the terminal device is in an inactive state.
  • the network device requests the capability information of the terminal device from other network devices.
  • the terminal device receives an RRC recovery message or a conflict resolution message, it indicates that the network device has obtained Capability information of the terminal equipment.
  • the terminal device reselects to determine or determine whether to support the second bandwidth.
  • Switching the bandwidth of the initial BWP includes: if the terminal device supports the second bandwidth, determining the bandwidth of the initial BWP as the second bandwidth, and adjusting the bandwidth of the initial BWP from the first bandwidth to the second bandwidth; if the terminal device does not support the second bandwidth , The terminal device does not need to adjust the bandwidth of the initial BWP, that is, the bandwidth of the initial BWP is kept at the first bandwidth.
  • the first control information sent by the network device to the terminal device may include first instruction information, where the first instruction information is used to indicate whether the terminal device adjusts an initial BWP bandwidth.
  • the terminal device reselects and determines the size of the initial BWP bandwidth according to the first instruction information.
  • the indication information may be 1 bit, indicating that the initial BWP bandwidth is the first bandwidth or the second bandwidth.
  • 0 may represent the first bandwidth
  • 1 represents the second bandwidth
  • 0 may represent the second bandwidth.
  • 1 represents the first bandwidth, which is not limited herein.
  • the indication information may also be indicated by the presence or absence of certain cells, or may be defined by special values of certain cells, which is not limited herein.
  • the first control information at this time may be any dedicated RRC message, for example, a security command message and an RRC reconfiguration message, which is not limited herein.
  • the network device may send the second control information to the terminal device. If the second control information includes the configuration of the dedicated BWP, the terminal device does not adjust the bandwidth of the initial BWP, that is, the bandwidth of the initial BWP is maintained as the first bandwidth. In this case, the terminal device will work on this dedicated BWP in the connected state, instead of the initial BWP. At this time, maintaining the initial BWP bandwidth as the first bandwidth is more conducive to the terminal device working in a more Power saving bandwidth. If the second control information does not include the configuration of the dedicated BWP, the terminal device may determine whether to adjust the bandwidth of the initial BWP according to the received first control information.
  • first control information and the second control information may be carried in the same message, or may be carried in different messages, which is not limited herein.
  • the second control information may be any dedicated RRC message, for example, a security command message and an RRC reconfiguration message, which is not limited herein.
  • the communication method provided by the embodiment of the present application is described from the perspective of the terminal device and the network device as the execution subjects.
  • the terminal device and the network device may include a hardware structure and / or a software module.
  • FIG. 18 illustrates a device 1800 provided by the present application.
  • the device 1800 includes at least one processor 1810, memory 1820, and transceiver 1830.
  • the processor 1810 is coupled to the memory 1820 and the transceiver 1830.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, and may be electrical, mechanical, or other forms for the device. , Information exchange between units, or modules.
  • the transceiver 1830 is configured to receive or send data.
  • the transceiver 1830 may include a receiver and a transmitter.
  • the receiver is used to receive data and the transmitter is used to send data.
  • the memory 1820 is used to store program instructions.
  • the processor 1810 is configured to call program instructions stored in the memory 1820 to execute the communication method shown in FIG. 16 in the embodiment of the present application.
  • the processor 1810 may use a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for performing related operations.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the processor 1810 calls program instructions stored in the memory 1820 to implement the steps performed by the terminal device in the communication method shown in FIG. 16 in the embodiment of the present application.
  • the processor 1810 calls program instructions stored in the memory 1820 to implement the steps performed by the network device in the communication method shown in FIG. 16 in the embodiment of the present application.
  • the device 1800 shown in FIG. 18 only shows the processor 1810, the transceiver 1830, and the memory 1820, in a specific implementation process, those skilled in the art should understand that the device 1800 also includes a device for realizing normal operation. Required for other devices. At the same time, according to specific needs, those skilled in the art should understand that the device 1800 may also include hardware devices that implement other additional functions. In addition, those skilled in the art should understand that the device 1800 may also include only the devices or modules necessary to implement the embodiments of the present application, and not necessarily all the devices shown in FIG. 18.
  • FIG. 19 shows a device 1900 provided by an embodiment of the present application.
  • the device 1900 includes a processing module 1901 and a transceiving module 1902.
  • the transceiver module 1902 is used to receive or send data, and may be implemented by a transceiver.
  • the transceiving module 1902 is a module having a transceiving function, and may include a receiving module and a transmitting module, where the receiving module is used to receive data and the transmitting module is used to transmit data.
  • the processing module 1901 is configured to execute the steps performed by the terminal device in the communication method shown in FIG. 16.
  • the processing module 1901 is configured to execute the steps performed by the network device in the communication method shown in FIG. 16.
  • an embodiment of the present application further provides a communication system 2000 including a terminal device in the embodiment of the present application and a network device in the embodiment of the present application.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, and the like including one or more available medium integration.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a Digital Video Disc (DVD)), or a semiconductor medium (for example, a solid state disk (Solid State Disk, SSD)) )Wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a Digital Video Disc (DVD)
  • DVD Digital Video Disc
  • semiconductor medium for example, a solid state disk (Solid State Disk, SSD)
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, which may be located in one place, or may be distributed to multiple network devices (for example, Terminal device). Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each functional unit may exist independently, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware, or in the form of hardware plus software functional units.

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Abstract

本申请提供一种通信方法及装置，涉及通信技术领域，能够解决将传统蜂窝网络的TAU机制直接运用于非陆地网络中，导致终端频繁执行TAU，增加终端能耗的问题。该方法包括：终端设备从接入网设备接收跟踪区信息，并根据第二跟踪区标识，确定是否执行TAU。跟踪区信息包含第一跟踪区标识以及第二跟踪区标识，第一跟踪区标识为第一小区的跟踪区标识，第二跟踪区标识用于终端设备执行跟踪区更新TAU。该方法应用在终端的位置管理过程中。

Description

通信方法及装置
本申请要求于2018年09月27日提交国家知识产权局、申请号为201811137202.5、发明名称为“通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
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及装置。
背景技术
为了解决传统地面网络不能为终端提供无缝覆盖的问题，非陆地网络(Non terrestrial networks，NTN)被引入通信系统中。NTN通过将基站或者基站的部分功能部署在高空平台或者卫星上为终端提供无缝覆盖。由于高空平台或者卫星受自然灾害影响较小且覆盖范围较大(比如能覆盖沙漠、大海等区域)，所以能提升通信系统的可靠性。以卫星为终端提高覆盖为例，卫星通过不同波束覆盖地面的不同区域，这里，可以将卫星的一个或几个波束理解为一个或几个小区。
在传统蜂窝网络中，为了确定终端在任何时候是可到达的，引入了基于跟踪区(Tracking Area，TA)的寻呼机制。终端在执行注册或者跟踪区更新(Tracking Area update，TAU)时，核心网设备向终端发送一个跟踪区列表(Tracking Area list，TA list)。通常，一个TA list包含一个或多个TA，每一TA包含多个小区。后续，如果终端在此TA list包含的小区内移动，则终端不需执行TAU，并且，当该终端有业务到达后，核心网设备在此TA list区域内寻呼此终端。反之，若终端移出此TA list包含的小区，则终端需执行TAU，使得核心网设备获知该终端当前所处的TA。
若将上述传统蜂窝网络的TAU机制直接应用在非陆地网络中，例如应用在非同步地球轨道(Non-Geostationary Earth Orbit，NGEO)网络中，则由于卫星高速移动，即使终端不移动或者低速移动，终端的服务小区也很可能发生变化，导致终端的服务小区并非TA list中的小区，触发终端频繁执行TAU，增加终端能耗。可见，传统蜂窝网络的TAU机制并不适用于诸如NGEO的非陆地网络中。
发明内容
本申请实施例提供一种通信方法及装置，能够避免非陆地网络中终端频繁执行TAU，降低终端能耗。
为达到上述目的，本申请实施例采用如下技术方案：
第一方面，本申请实施例提供一种通信方法，该方法应用于终端或终端的芯片，该方法包括：终端设备从接入网设备接收跟踪区信息，并根据所述第二跟踪区标识，确定是否执行TAU。其中，所述跟踪区信息包含第一跟踪区标识以及第二跟踪区标识，所述第一跟踪区标识为第一小区的跟踪区标识，所述第二跟踪区标识用于所述终端设备执行跟踪区更新TAU。
本申请实施例提供的通信方法，终端从接入网设备获取跟踪区信息，并根据第二跟踪区标识判断是否进行TAU。其中，跟踪区信息包含第一跟踪区标识和第二跟踪区标识，第 一跟踪区为所在第一小区的跟踪区标识，第二跟踪区标识用于终端判断是否执行TAU。与现有技术中，由于高空站高速移动，很可能触发终端频繁执行TAU相比，在本申请实施例的通信方法中，即使高空站高速移动，终端的服务小区发生变化，由于终端的新服务小区可能处于第二跟踪区标识对应的第二跟踪区内，因此，可能不会触发TAU，进而降低TAU的频率，同时降低终端能耗。
在一种可能的设计中，所述跟踪区信息还包含时间参数。
所述终端设备根据所述第二跟踪区标识，确定是否执行TAU，可以实现为：所述终端设备根据所述时间参数以及所述第二跟踪区标识确定是否执行TAU。
在一种可能的设计中，所述时间参数用于配置定时器，所述定时器的定时时长为T。
相应的，所述终端设备根据所述时间参数以及所述第二跟踪区标识确定是否执行TAU，具体可以实现为：当所述定时器超时时，所述终端设备根据所述第二跟踪区标识确定是否执行TAU。
在一种可能的设计中，所述终端设备根据所述第二跟踪区标识，确定是否执行TAU，具体可以实现为：在所述定时器超时时，所述终端设备判断当前所在跟踪区是否为第二跟踪区，若所述终端设备当前所在跟踪区为所述第二跟踪区，则所述终端设备不执行TAU；和/或，若所述终端设备当前所在跟踪区不是所述第二跟踪区，则所述终端设备执行TAU。其中，所述第二跟踪区为所述第二跟踪区标识对应的跟踪区。
在一种可能的设计中，终端还可以执行如下步骤：所述终端设备接收接入网设备发送的寻呼消息。
在一种可能的设计中，所述终端设备从接入网设备接收跟踪区信息，具体可以实现为：所述终端设备接收所述接入网设备广播的系统消息，所述系统消息携带所述跟踪区信息。
第二方面，本申请实施例提供一种通信方法，该方法应用于接入网设备或接入网设备的芯片中。该方法包括：接入网设备向终端设备发送跟踪区信息，所述跟踪区信息包含所述第一跟踪区标识以及第二跟踪区标识。其中，所述第一跟踪区标识为所述终端设备所在第一小区的跟踪区标识，所述第二跟踪标识用于所述终端设备执行TAU。
在一种可能的设计中，接入网设备还可以执行如下步骤：所述接入网设备确定所述第一跟踪区标识以及所述第二跟踪区标识。
在一种可能的设计中，所述接入网设备确定所述第一跟踪区标识以及所述第二跟踪区标识，具体可以实现为：所述接入网设备从核心网设备接收所述第一跟踪区标识和所述第二跟踪区标识，或者，所述接入网设备中预配置有所述第一跟踪区标识和所述第二跟踪区标识。
在一种可能的设计中，所述跟踪区信息还包含时间参数，所述时间参数用于配置终端的定时器，所述定时器的定时时长为T。
在一种可能的设计中，接入网设备还可以执行如下步骤：所述接入网设备从核心网设备接收寻呼消息，并广播所述寻呼消息。
在一种可能的设计中，所述接入网设备向终端设备发送跟踪区信息，具体可以实现为：所述接入网设备广播系统消息，所述系统消息携带跟踪区信息。
在第一方面或第二方面的一种可能的设计中，所述定时器的起始时刻为第一时刻，所述第一时刻为所述终端设备驻留所述第一小区或切换至所述第一小区的时刻或者所述终 端设备进入非激活态的时刻或者所述终端设备执行TAU的时刻。
在第一方面或第二方面的一种可能的设计中，所述第二跟踪区标识为所述终端设备在所述定时器超时时预期到达的跟踪区的标识。
第三方面，本申请实施例提供一种通信方法，该方法应用于核心网设备或核心网设备的芯片中。该方法包括：
核心网设备在第二时刻接收到对应于终端设备的业务数据。所述核心网设备在第三跟踪区TA内发送寻呼消息，所述第二时刻与第三时刻的时间间隔大于第一时长；或者，所述核心网设备在第四TA和/或至少一个第五TA内发送寻呼消息，所述第二时刻与所述第三时刻的时间间隔小于或等于第一时长。
其中，所述第三时刻为所述第二时刻之前，所述核心网设备确定所述终端设备所在最新TA的时刻/所述终端设备通过核心网设备进行注册或者所述终端设备进行的最近一次TAU的时刻。
本申请实施例提供的通信方法，当核心网设备在第二时刻接收到对应于终端的业务数据时，可以基于不同情况在不同的TA内发起寻呼。具体的，若第二时刻与第三时刻的时间间隔大于第一时长，则核心网设备在第三TA内发送寻呼消息，若第二时刻与第三时刻的时间间隔小于或等于第一时长，则核心网设备在第一TA和/或至少一个第二TA内发送寻呼消息。一方面，在第二时刻与第三时刻的时间间隔大于第一时长的情况下，核心网设备可以仅在一个第三TA内发送寻呼消息，也就是核心网设备可以在一个较小区域内发起寻呼，降低寻呼的信令开销。另一方面，在第二时刻与第三时刻的时间间隔小于或等于第一时长的情况下，核心网设备可以在至少一个TA内发起寻呼，提升寻呼成功的概率。
在一种可能的设计中，所述第三TA为所述终端设备在所述第二时刻所在的TA，所述第四TA为所述终端设备在所述第三时刻所在的TA，每一第五TA为所述终端设备在从所述第三时刻开始每间隔第一时长预期到达的TA。
在一种可能的设计中，若所述核心网设备未寻呼到所述终端设备，则所述核心网设备在所述第四TA相邻的一个或多个TA和/或至少一个第五TA中每一第五TA相邻的一个或多个TA内发送寻呼消息。
第四方面，本申请实施例提供一种通信方法，该方法应用于终端或终端的芯片中。该方法包括：终端设备从接入网设备接收RNA信息，并根据所述第二RNA标识，确定是否执行RNAU。其中，所述RNA信息包含第一RNA标识以及第二RNA标识，所述第一RNA标识为所述终端设备所在第五小区的RNA标识，所述第二RNA标识用于所述终端设备执行RNAU。
在一种可能的设计中，所述RNA信息还包含时间参数。
所述终端设备根据所述第二RNA标识，确定是否执行RNAU，具体可以实现为：所述终端设备根据所述时间参数以及所述第二RNA标识确定是否执行RNAU。
在一种可能的设计中，所述时间参数用于配置定时器，所述定时器的定时时长为T。
所述终端设备根据所述时间参数以及所述第二RNA标识确定是否执行RNAU，具体可以实现为：当所述定时器超时时，所述终端设备根据所述第二RNA标识确定是否执行RNAU。
在一种可能的设计中，所述终端设备根据所述第二RNA标识，确定是否执行RNAU， 具体可以实现为：在所述定时器超时时，所述终端设备判断当前所在RNA是否为第二RNA，若所述终端设备当前所在RNA为所述第二RNA，则所述终端设备不执行RNAU；和/或，若所述终端设备当前所在RNA不是所述第二RNA，则所述终端设备执行RNAU。所述第二RNA为所述第二RNA标识对应的RNA。
在一种可能的设计中，终端设备还可以执行如下步骤：所述终端设备接收接入网设备发送的寻呼消息。
在一种可能的设计中，所述终端设备从接入网设备接收RNA信息，具体可以实现为：所述终端设备接收所述接入网设备广播的系统消息，所述系统消息携带所述RNA信息。
第五方面，本申请实施例提供一种通信方法，该方法应用于接入网设备或接入网设备的芯片中。该方法包括：接入网设备向终端设备发送RNA信息，所述RNA信息包含所述第一RNA标识以及第二RNA标识，其中，所述第一RNA标识为所述终端设备所在第五小区的RNA标识，所述第二路由标识用于所述终端设备执行RNAU。
在一种可能的设计中，所述接入网设备向终端设备发送RNA信息，具体可以实现为：所述接入网设备广播系统消息，所述系统消息携带RNA信息。
在一种可能的设计中，接入网设备还可以执行如下步骤：接入网设备在第五时刻接收到对应于终端设备的业务数据。所述接入网设备在第三RNA内发送寻呼消息，所述第五时刻与第六时刻的时间间隔大于第二时长；或者，所述接入网设备在第四RNA和/或至少一个第五RNA内发送寻呼消息，所述第五时刻与所述第六时刻的时间间隔小于或等于第二时长。
其中，所述第六时刻为所述第五时刻之前，所述接入网设备确定所述终端设备所在最新RNA的时刻。
在一种可能的设计中，所述第三RNA为所述终端设备在所述第五时刻所在的RNA，所述第四RNA为所述终端设备在所述第六时刻所在的RNA，每一第五RNA为所述终端设备在从所述第六时刻开始每间隔第二时长预期到达的RNA。
在一种可能的设计中，若所述接入网设备未寻呼到所述终端设备，则所述接入网设备在所述第四RNA相邻的一个或多个RNA和/或至少一个第五RNA中每一第五RNA相邻的一个或多个RNA内发送寻呼消息。
在一种可能的设计中，所述RNA信息还包含时间参数，所述时间参数用于配置终端的定时器，所述定时器的定时时长为T。
所述定时器的起始时刻为第四时刻，所述第四时刻为所述终端设备驻留所述第五小区或切换至所述第五小区的时刻，或者所述终端设备进入非激活态的时刻或者所述终端设备执行TAU的时刻。
所述第二RNA标识为所述终端设备在所述定时器超时时预期到达的RNA的标识。
第六方面，本申请实施例提供一种通信装置，包括：
接收模块，用于从接入网设备接收跟踪区信息，所述跟踪区信息包含第一跟踪区标识以及第二跟踪区标识，所述第一跟踪区标识为所述终端设备所在第一小区的跟踪区标识，所述第二跟踪区标识用于所述终端设备执行跟踪区更新TAU；处理模块，用于根据所述第二跟踪区标识，确定是否执行TAU。
在一种可能的设计中，所述跟踪区信息还包含时间参数；
所述处理模块，用于根据所述第二跟踪区标识，确定是否执行TAU，包括：用于根据所述时间参数以及所述第二跟踪区标识确定是否执行TAU。
在一种可能的设计中，所述时间参数用于配置定时器，所述定时器的定时时长为T。
执行模块，用于根据所述时间参数以及所述第二跟踪区标识确定是否执行TAU，包括：
用于当所述定时器超时时，根据所述第二跟踪区标识确定是否执行TAU。
在一种可能的设计中，所述定时器的起始时刻为第一时刻，所述第一时刻为所述终端设备驻留到所述第一小区或切换至所述第一小区的时刻或者所述终端设备进入非激活态的时刻或者所述终端设备执行TAU的时刻。
在一种可能的设计中，所述第二跟踪区标识不同于所述第一跟踪区标识。
在一种可能的设计中，执行模块，用于根据所述第二跟踪区标识，确定是否执行TAU，包括：用于在所述定时器超时时，判断当前所在跟踪区是否为第二跟踪区，所述第二跟踪区为所述第二跟踪区标识对应的跟踪区；若所述终端设备当前所在跟踪区为所述第二跟踪区，则所述终端设备不执行TAU；和/或，若所述终端设备当前所在跟踪区不是所述第二跟踪区，则所述终端设备执行TAU。
在一种可能的设计中，接收模块，还用于接收接入网设备发送的寻呼消息。
在一种可能的设计中，接收模块，用于从接入网设备接收跟踪区信息，包括：用于接收所述接入网设备广播的系统消息，所述系统消息携带所述跟踪区信息。
第七方面，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跟踪区信息，所述跟踪区信息包含所述第一跟踪区标识以及第二跟踪区标识，其中，所述第一跟踪区标识为所述终端设备所在第一小区的跟踪区标识，所述第二跟踪标识用于所述终端设备执行跟踪区更新TAU。
在一种可能的设计中，所述通信装置还包括确定模块，用于确定所述第一跟踪区标识以及所述第二跟踪区标识。
在一种可能的设计中，所述确定模块，用于确定所述第一跟踪区标识以及所述第二跟踪区标识，包括：用于从核心网设备接收所述第一跟踪区标识和所述第二跟踪区标识，或者，所述接入网设备中预配置有所述第一跟踪区标识和所述第二跟踪区标识，根据预配置的信息确定第一跟踪区标识以及所述第二跟踪区标识。
在一种可能的设计中，所述跟踪区信息还包含时间参数，所述时间参数用于配置终端的定时器，所述定时器的定时时长为T。
在一种可能的设计中，所述定时器的起始时刻为第一时刻，所述第一时刻为所述终端设备驻留所述第一小区或切换至所述第一小区的时刻或者所述终端设备进入非激活态的时刻或者所述终端设备执行TAU的时刻。
在一种可能的设计中，所述第二跟踪区标识不同于所述第一跟踪区标识。
在一种可能的设计中，通信装置，还包括广播模块。
接收模块，还用于所述接入网设备从核心网设备接收寻呼消息。
广播模块，用于广播所述寻呼消息。
在一种可能的设计中，发送模块，用于发送跟踪区信息，包括：用于广播系统消息，所述系统消息携带跟踪区信息。
第八方面，本申请实施例提供一种通信装置，该通信装置包括：
接收模块，用于在第二时刻接收到对应于终端设备的业务数据；
发送模块，用于在第三跟踪区TA内发送寻呼消息，所述第二时刻与第三时刻的时间间隔大于第一时长；或者，在第四TA和/或至少一个第五TA内发送寻呼消息，所述第二时刻与所述第三时刻的时间间隔小于或等于第一时长。
其中，所述第三时刻为所述第二时刻之前，所述核心网设备确定所述终端设备所在最新TA的时刻或所述终端设备通过核心网设备进行注册，或者，所述终端设备进行的最近一次跟踪区更新TAU的时刻。
在一种可能的设计中，所述第三TA为所述终端设备在所述第二时刻所在的TA，所述第四TA为所述终端设备在所述第三时刻所在的TA，每一第五TA为所述终端设备在从所述第三时刻开始每间隔第一时长预期到达的TA。
在一种可能的设计中，发送模块，用于若所述核心网设备未寻呼到所述终端设备，则在所述第四TA相邻的一个或多个TA和/或至少一个第五TA中每一第五TA相邻的一个或多个TA内发送寻呼消息。
第九方面，本申请实施例提供一种通信装置，该装置具有实现上述任一方面中任一项的通信方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第十方面，提供一种通信装置，包括：处理器和存储器；该存储器用于存储计算机执行指令，当该通信装置运行时，该处理器执行该存储器存储的该计算机执行指令，以使该通信装置执行如上述任一方面中任一项的通信方法。
第十一方面，提供一种通信装置，包括：处理器；处理器用于与存储器耦合，并读取存储器中的指令之后，根据指令执行如上述任一方面中任一项的通信方法。
第十二方面，提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机可以执行上述任一方面中任一项的通信方法。
第十三方面，提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机可以执行上述任一方面中任一项的通信方法。
第十四方面，提供一种电路系统，电路系统包括处理电路，处理电路被配置为执行如上述任一方面中任一项的通信方法。
第十五方面，提供一种芯片，所述芯片包括处理器，所述处理器和存储器耦合，所述存储器存储有程序指令，当所述存储器存储的程序指令被所述处理器执行时实现上述任一方面任意一项所述的通信方法。
第十六方面，提供一种通信系统，通信系统包括上述各个方面中任一方面中的终端设备、任一方面中的接入网设备和任一方面中的核心网设备。
其中，第二方面至第十六方面中任一种设计方式所带来的技术效果可参见第一方面中不同设计方式所带来的技术效果，此处不再赘述。
附图说明
图1为本申请实施例提供的通信系统的示意图；
图2为本申请实施例提供的通信设备的结构示意图；
图3为本申请实施例提供的通信方法的流程图；
图4为本申请实施例提供的通信方法的流程图；
图5为本申请实施例提供的通信方法的流程图；
图6为本申请实施例提供的通信方法的流程图；
图7为本申请实施例提供的通信方法的流程图；
图8为本申请实施例提供的通信方法的场景示意图；
图9为本申请实施例提供的通信方法的场景示意图；
图10为本申请实施例提供的通信方法的场景示意图；
图11为本申请实施例提供的通信方法的场景示意图；
图12为本申请实施例提供的通信装置的结构示意图；
图13为本申请实施例适用的一种可能的通信系统的架构示意图；
图14为本申请实施例适用的另一种可能的通信系统的架构示意图；
图15为本申请实施例BWP的示意图；
图16为本申请实施例通信方法的流程示意图；
图17为本申请实施例初始BWP与RAR CORESET的带宽大小示意图；
图18为本申请实施例的一种设备结构示意图；
图19为本申请实施例的另一种设备结构示意图；
图20为本申请实施例的通信系统结构示意图。
具体实施方式
本申请的说明书以及附图中的术语“第一”和“第二”等是用于区别不同的对象，或者用于区别对同一对象的不同处理，而不是用于描述对象的特定顺序。此外，本申请的描述中所提到的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括其他没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。需要说明的是，本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
首先给出本申请实施例所涉及的系统架构，如图1所示，该系统包括接入网设备、与接入网设备通信的多个终端设备、与接入网设备进行通信的核心网设备(图中仅示例性的示出一个)。
图1所示的通信系统可以应用于目前的长期演进(Long Term Evolution，LTE)或者高级的长期演进(LTE Advanced，LTE-A)系统中，也可以应用于目前正在制定的5G网络或者未来的其它网络中，当然，还可以应用于LTE和5G混合组网的系统中，或者其他系统中，本申请实施例对此不作具体限定。其中，在不同的网络中，上述通信系统中的核心网设备、接入网设备、终端设备可能对应不同的名字，本领域技术人员可以理解的是，名字对设备本身不构成限定。
其中，本申请实施例所称的核心网设备，是一种部署在核心网中用以为终端提供服务的装置。在采用不同的无线接入技术的系统中，具备相类似无线通信功能的核心网设备的名称可能会有所不同。例如，当本申请实施例的能力上报方法应用于5G系统中，核心网设备可以是接入和移动管理功能(AMF，Access and Mobility Management Function)，当应 用于LTE系统中，核心网设备可以是移动性管理实体(Mobility Management Entity，MME)。仅为描述方便，本申请实施例中，上述可以为终端提供服务的装置统称为核心网设备。
接入网设备是一种部署在无线接入网用以提供无线通信功能的装置。本申请实施例涉及到的接入网设备可以是部署在陆地上的地面站，也可以是部署在高空的高空站。高空站指的是部署有具备无线通信功能的卫星站或者高空平台，或者部署在高空中的其他形式的通信设备。具体的，可以将地面站的无线通信功能或者地面站的部分无线通信功能部署在高空站中。可选的，本申请实施例所涉及的地面站包括例如但不限于如下各种形式的宏基站，微基站(也称为小站)，中继站，发送接收点(Transmission Reception Point，TRP)，下一代网络节点(g Node B，gNB)、连接下一代核心网的演进型节点B(ng evolved Node B，ng-eNB)等，还可以包括无线局域网(wireless local area network，WLAN)接入设备等非3GPP系统的无线接入网设备。
终端设备主要用于接收或者发送数据。可选的，本申请实施例中所涉及到的终端可以包括例如但不限于各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备；还可以包括用户单元(subscriber unit)、蜂窝电话(cellular phone)、智能电话(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、手持设备(handheld)、膝上型电脑(laptop computer)、机器类型通信(machine type communication,MTC)终端(terminal)、用户设备(user equipment，UE)等。在本申请实施例中，终端设备还可以称为终端，在此统一说明，下文不再赘述。
图1中，核心网设备、地面站、卫星站以及多个终端组成一个通信系统。在该通信系统中，终端1至终端6可以发送上行数据或信令给地面站，地面基站可接收终端1至终端6分别发送的上行数据或信令。同样地，地面站可发送下行数据或信令给终端1至终端6，终端1至终端6可接收来自地面站的下行数据或信令。
此外，终端4至终端6也可组成一个子通信系统。在该子通信系统中，终端4、5、6之间可相同通信。当然，还可通过3个终端中的某一终端作为中继节点，在地面站和其他终端之间传输信息。比如，当终端5开启热点后，终端4、终端6可通过终端5的热点与地面站之间进行信息交互。
在另一些区域，比如沙漠等传统地面站难以覆盖的区域，终端7至终端9可通过卫星站与核心网设备之间进行信息交互，以保证业务的正常执行。
可选的，图1所示的通信系统还可包括网关，核心网设备可通过网关与卫星站之间进行通信。
需要强调的是，本通信系统中包括多个卫星站、多个地面站、多个核心网设备，图1仅示例性示出了一个地面站、一个卫星站、一个核心网设备。
可选的，图1中的全部或者部分网元可以是物理上的实体网元，也可以是虚拟化的网元，在此不做限定。
此外，本申请实施例描述的通信系统架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定。本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
可选的，图1中的终端、接入网设备、核心网设备可以分别由多个设备实现。接入网 设备和核心网设备还可以由一个设备实现，例如将接入网设备和核心网设备实现为一个设备内的不同功能模块，本申请实施例对此不作具体限定。可以理解的是，上述功能模块既可以是硬件设备中的网络元件，也可以是在硬件设备上运行的软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。
示例性的，本申请实施例中的终端、接入网设备、核心网设备可实现为图2中的通信设备。图2所示为本申请实施例提供的通信设备的硬件结构示意图。该通信设备200包括至少一个处理器201，通信线路202，存储器203以及至少一个通信接口204。
处理器201可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信线路202可包括一通路，在上述组件之间传送信息。
通信接口204，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。
存储器203可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路202与处理器相连接。存储器也可以和处理器集成在一起。
其中，存储器203用于存储执行本申请实施例方案的计算机执行指令，并由处理器201来控制执行。处理器201用于执行存储器203中存储的计算机执行指令，从而实现本申请下述实施例提供的通信方法。
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
在具体实现中，作为一种实施例，处理器201可以包括一个或多个CPU，例如图2中的CPU0和CPU1。
在具体实现中，作为一种实施例，通信设备200可以包括多个处理器，比如处理器201和处理器205。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
可以理解的是，图2仅示出了通信设备的一种示例性的硬件结构示意图，为了实现本申请实施例的技术方案，通信设备200还可能包括其他的组件，本申请实施例并不对此进行限制。
上述的通信设备200可以是一个通用设备或者是一个专用设备。在具体实现中，通信设备200可以是具有如图2中类似结构的设备。本申请实施例不限定通信设备200的类型。
下面对本申请实施例提供的通信方法进行具体阐述。
需要说明的是，本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，在此统一说明，以下不再赘述。
本申请实施例提供一种通信方法，该通信方法应用在对终端进行位置管理的过程中。参见图3，该通信方法包括如下步骤：
S301、接入网设备向终端设备发送跟踪区信息。
相应的，终端设备从接入网设备接收跟踪区信息。
所述跟踪区信息包含第一跟踪区标识以及第二跟踪区标识，所述第一跟踪区标识为所述终端设备所在第一小区的跟踪区标识，所述第二跟踪区标识为所述终端设备在所述定时器超时时预期到达的跟踪区的标识，第二跟踪区标识用于所述终端设备执行TAU。
可选的，跟踪区信息还包含时间参数。所述时间参数用于配置定时器。所述定时器的定时时长为T1，定时器的起始时刻为第一时刻。当然，时间参数也可以预配置在终端中。当终端接收接入网设备发送的第一跟踪区标识和第二跟踪区标识后，可根据预配置的时间参数在第一时刻启动定时器。
可选的，所述第一时刻与终端的状态相关。示例性的，第一时刻为所述空闲态的终端设备驻留至所述第一小区的时刻，或者，第一时刻为连接态的终端切换至所述第一小区的时刻或者所述终端设备进入非激活态的时刻或者所述终端设备执行TAU的时刻。
终端设备从接入网设备接收跟踪区信息，可以存在多种实现方式。可选的，终端设备接收接入网设备广播的系统消息，所述系统消息携带所述跟踪区信息。或者，终端设备从接入网设备接收无线资源控制(Radio Resource Control，RRC)信令，RRC信令携带跟踪区信息。当然，终端还可以通过其他方式获取跟踪区信息，本申请实施例不对终端获取跟踪区信息的具体实现方式作出限定。
示例性的，在一种场景中，空闲态的终端接收接入网设备广播的系统消息，系统消息携带跟踪区信息，跟踪区信息包含第一跟踪区标识、第二跟踪区标识和时间参数。进而终端获知第一小区的跟踪区标识为第一跟踪区标识，并且根据时间参数获知需在第一时刻开启定时器，并且定时器的定时时长为T1，根据第二跟踪区标识获知在定时器超时时预期到达的跟踪区的标识。可选的，第一时刻为终端驻留至第一小区的时刻。后续，终端可在驻留至第一小区的时刻开启定时器。
示例性的，在另一种场景中，连接态的终端接收接入网设备发送的RRC信令，RRC信令携带跟踪区信息，跟踪区信息包含第一跟踪区标识、第二跟踪区标识和时间参数。进而终端获知第一小区的跟踪区标识为第一跟踪区标识，并且根据时间参数获知需在第一时刻开启定时器，根据第二跟踪区标识获知在定时器超时时预期到达的跟踪区的标识。可选的，第一时刻为终端切换至第一小区的时刻。后续，终端可在切换至第一小区的时刻开启定时器。当然，连接态的终端也可以通过读取接入网设备广播的系统消息获取跟踪区信息，从而可在切换至第一小区的时刻开启定时器。
可选的，接入网设备中的第一跟踪区标识和第二跟踪区标识可以是预配置的。示例性的，接入网设备的管理平台可以预先将第一跟踪区标识和第二跟踪区标识下发给接入网设备，接入网设备存储第一跟踪区标识和第二跟踪区标识。可选的，所述管理平台可以为虚拟的管理模块，或者，接入网设备中的功能模块，还可以为具有相应功能的实体或者虚拟 装置。其中，管理平台根据高空平台或者卫星站(可统称为高空站)的移动速度和移动时间计算出高空站的移动距离，并结合高空站的移动轨迹，计算出终端在不同时刻预期所处的TA。比如，管理平台可以计算出，终端在时刻1预期位于服务小区1所属的TA1，终端在时刻2预期位于服务小区2所属的TA2，终端在时刻3预期位于服务小区3所属的TA3。终端在某一时刻预期所处TA指的是，管理平台预期终端在该时刻位于的TA。通常，高空站的移动轨迹、移动速度较为固定，而终端的移动轨迹、移动速度具有较强的随机性，所以，在终端移动速度较快等场景中，管理平台预期终端在该时刻所处的TA并不等同于终端在该时刻实际所处TA。
需要说明的是，管理平台还可将计算出的第一跟踪区标识和第二跟踪区标识发送给核心网设备，以便于核心网设备获知终端在不同时刻预期所在的TA。
可选的，接入网设备从核心网设备获取第一跟踪区标识和第二跟踪区标识。具体的，核心网设备可计算终端在不同时刻所处的TA，并向接入网设备发送第一跟踪区标识和第二跟踪区标识。其中，核心网设备计算终端所处TA的方法可参见管理平台计算TA的相关描述，这里不再赘述。
S302、所述终端设备根据所述第二跟踪区标识，确定是否执行TAU。
具体的，参见图4，S302可实现为步骤S3021至S3023：
S3021、所述定时器超时时，所述终端设备判断当前所在跟踪区是否为第二跟踪区，若所述终端设备当前所在跟踪区为所述第二跟踪区，则执行S3022，若所述终端设备当前所在跟踪区不是所述第二跟踪区，则执行S3023。
其中，所述第二跟踪区为所述第二跟踪区标识对应的跟踪区。
终端通过接收接入网设备发送的系统消息或者RRC信令，可获知在定时器超时时刻所处的跟踪区。
S3022、所述终端设备不执行TAU。
由上文可知，核心网设备能够获知终端在不同时刻预期所处TA。基于此，在定时时长T1内，若终端从第一小区所在第一TA到达所预期的TA，即第二TA，则不必执行TAU。也就是说，在定时器超时的时刻，终端实际所处TA与预期所处TA一致，相当于核心网设备已获知终端在该时刻实际所处TA，终端不必执行TAU。
S3023、所述终端设备执行TAU。
在定时时长内T1，若终端未从第一小区所属的第一TA到达预期TA(即第二TA)，则执行TAU。也就是说，在定时器超时的时刻，终端实际所处TA与预期所处TA不一致，核心网设备并不知道终端该时刻实际所处TA，此时，终端需执行TAU，以便核心网设备获知终端实际所处TA。
其中，终端执行TAU的流程为现有技术中的流程，这里不再赘述。
本申请实施例提供的通信方法，终端从接入网设备获取跟踪区信息，并根据第二跟踪区标识判断是否进行TAU。其中，跟踪区信息包含第一跟踪区标识和第二跟踪区标识，第一跟踪区为所在第一小区的跟踪区标识，第二跟踪区标识用于终端判断是否执行TAU。与现有技术中，由于高空站高速移动，很可能触发终端频繁执行TAU相比，在本申请实施例的通信方法中，即使高空站高速移动，终端的服务小区发生变化，由于终端的新服务小区可能处于第二跟踪区标识对应的第二跟踪区内，因此，可能不会触发TAU，进而降低TAU 的频率，同时降低终端能耗。
本申请实施例还提供一种通信方法，该通信方法应用在核心网设备寻呼终端的过程中。如图5所示，该通信方法包括如下步骤：
S501、核心网设备在第二时刻接收到对应于终端设备的业务数据。
比如，核心网设备在第二时刻接收到应用服务器(例如微信应用服务器)发送的对应于终端的业务数据。
S502、核心网设备判断第二时刻与第三时刻的时间间隔是否大于第一时长，若第二时刻与第三时刻的时间间隔大于第一时长，则执行S503，若第二时刻与第三时刻的时间间隔小于或等于第一时长，则执行S504。
其中，第一时长为上述提及的定时器的定时时长T1。
所述第三时刻为所述第二时刻之前，所述核心网设备确定所述终端设备所在最新TA的时刻。具体的，第三时刻可以是所述终端设备通过核心网设备进行注册或者所述终端设备进行的最近一次TAU的时刻。可选的，当终端进行注册时，终端向接入网设备发送注册消息，接入网设备记录接收到注册消息的时刻，将该时刻作为第三时刻，并将该第三时刻通知给核心网设备。或者，接入网设备接收到注册消息后，向核心网设备发送该注册消息，核心网设备记录接收到注册消息的时刻，并将该时刻作为第三时刻。当终端进行TAU时，终端向接入网设备发送TAU消息，接入网设备记录接收到TAU消息的时刻，将该时刻作为第三时刻，并将该第三时刻通知给核心网设备。或者，接入网设备接收到TAU消息后，向核心网设备发送该TAU消息，核心网设备记录接收到TAU消息的时刻，并将该时刻作为第三时刻。
当然，还可以采用其他方式确定第三时刻，本申请实施例不对确定第三时刻的方式进行限制。
需要说明的是，在图5所示的方法流程中，S301和S302为可选步骤。当第三时刻为终端通过核心网设备进行注册的时刻，图5所示的方法流程可以不包含S301和S302。
S503、所述核心网设备在第三TA内发送寻呼消息。
相应的，接入网设备接收核心网设备发送的寻呼消息(paging)。
需要说明的是，核心网设备在第三TA内发送寻呼消息，指的是核心网设备向第三TA内的全部接入网设备发送寻呼消息。
寻呼消息包含终端标识。第三TA为所述终端设备在所述第二时刻所在的TA。
以第三时刻为终端执行最近一次TAU的时刻为例，参见图8，终端在第三时刻执行最近一次的TAU，核心网设备由此确定终端所在最新TA为第四TA。之后，核心网设备于第二时刻在业务数据的触发下发起对终端的寻呼。若第二时刻与第三时刻的时间间隔大于定时时长T1，说明自第三时刻开始到定时时长T1，并未触发终端执行TAU，也就意味着，自第三时刻延长定时时长T1这段时间内，终端实际所处TA和预期TA一致，这表明核心网设备(或者上述提及的管理平台)计算出的预期TA准确度较高。因此，在第二时刻，核心网设备在计算出的预期TA，即第三TA内发送寻呼消息。其中，核心网设备可根据高空站的移动速度、移动轨迹、移动时间计算预期TA，具体计算方法可参见上文，此处不再赘述。
S504、所述核心网设备在第四TA和/或至少一个第五TA内发送寻呼消息。
相应的，接入网设备接收核心网设备发送的寻呼消息。
与上述核心网设备在第三TA内发送寻呼消息类似的，核心网在第四TA和/或至少一个第五TA内发送寻呼消息，指的是核心网设备向第四TA和/或至少一个第五TA内的全部接入网设备发送寻呼消息。下文中核心网设备在某一个或几个TA内发送寻呼消息的含义，可参见此处的描述。
第四TA为所述终端设备在所述第三时刻所在的TA。
每一第五TA为所述终端设备在从所述第三时刻开始每间隔第一时长预期到达的TA。比如，第一个第五TA可以为自第三时刻开始间隔定时时长T1预期到达的TA，第二个第五TA可以为自第三时刻开始间隔2个定时时长T1预期到达的TA。这里，定时时长T1可以相同，也可以不同。比如，第一个T1取10ms，第二个T1取30ms。相应的，第一个第五TA为自第三时刻开始间隔10ms，终端预期到达的TA；第二个第五TA为自第三时刻开始间隔30ms(10ms+20ms)，终端预期到达的TA。
参见图9，在本申请实施例中，若第二时刻与第三时刻的时间间隔小于或等于定时时长T1，由于并未到达判断是否执行下一次TAU的时刻(即自第三时刻开始定时时长到达的时刻)，所以，核心网设备无法确保计算出的预期TA的准确度。此时，核心网设备可在第四TA和/或至少一个第五TA内发起寻呼。示例性的，核心网设备可以仅在第四TA内发起寻呼，这样，当终端的移动速度较慢或者终端并未移动时，核心网设备可能寻呼成功，并且，由于核心网设备仅在一个TA内发起寻呼，可节约寻呼的信令开销。在又一示例中，核心网设备可在第四TA和一个第五TA内发起寻呼，这样，当终端的移动速度较慢或者终端并未移动时，核心网设备可能寻呼成功，并可节约寻呼的信令开销。当然，核心网设备还可以在第四TA和多个第五TA内发起寻呼，这样，即使终端的移动速度较快，由于核心网设备在多个TA内发起寻呼，可增加寻呼成功的概率。
S505、若所述核心网设备未寻呼到所述终端设备，则所述核心网设备在所述第四TA相邻的一个或多个TA和/或至少一个第五TA相邻的一个或多个TA内发送寻呼消息。
相应的，接入网设备接收核心网设备发送的寻呼消息。
当核心网设备在一定时间内未收到终端的寻呼反馈信息时，核心网设备确定未寻呼到终端，此时，核心网设备可以在另外的TA内发起寻呼。示例性的，核心网设备可以仅在第四TA相邻的一个或多个TA内发起寻呼，这样，当终端的移动速度较慢或者终端并未移动时，核心网设备可能寻呼成功，并且可节约寻呼的信令开销。
在又一示例中，核心网设备可在第四TA相邻的一个或多个TA，以及一个第五TA相邻的一个或多个TA内发起寻呼。
当然，核心网设备还可以在第四TA相邻的一个或多个TA，以及多个第五TA分别相邻的TA(比如第一个第五TA相邻的一个或多个TA，以及第二个第五TA相邻的一个或多个TA)内发起寻呼。
由上述S501至S505可以得出，在不同情况下，核心网设备可在不同的区域内发送寻呼消息。核心网设备还可在如下的区域中发送寻呼消息：
情况1：作为S504替代步骤，若第二时刻与第三时刻的时间间隔小于或等于第一时长，核心网设备还可以在第四TA和/或第四TA相邻的一个或多个TA内发送寻呼消息。示例性的，核心网设备可仅在第四TA内发起寻呼，以节约寻呼信令开销。又比如，核心网设 备在第四TA相邻的一个或多个TA内发起寻呼，又比如，核心网设备还可以在第四TA以及第四TA相邻的一个或多个TA内发起寻呼。
相应的，S505可以替换为，若所述核心网设备未寻呼到所述终端设备，则所述核心网设备在至少一个第五TA和/或至少一个第五TA相邻的一个或多个TA内发送寻呼消息。示例性的，参见图9，核心网设备在第一个第五TA内发起寻呼。又比如，核心网设备在第一个第五TA以及第一个第五TA相邻的一个或多个TA内发起寻呼。
情况2：当然，S504还可以替换为，若第二时刻与第三时刻的时间间隔小于或等于第一时长，则所述核心网设备在至少一个第五TA和/或至少一个第五TA相邻的一个或多个TA内发送寻呼消息。
相应的，S505可以替换为，若第二时刻与第三时刻的时间间隔小于或等于第一时长，核心网设备还可以在第四TA和/或第四TA相邻的一个或多个TA内发送寻呼消息。
情况3：若第二时刻与第三时刻的时间间隔小于或等于第一时长，核心网设备还可以在第四TA和/或第四TA相邻的一个或多个TA，以及至少一个第五TA和/或至少一个第五TA相邻的一个或多个TA内发送寻呼消息。
当然，在其他情况下，核心网设备还可以选择在其他区域发起寻呼，本申请实施例不对核心网设备发起寻呼的区域做限定。
S506、接入网设备广播寻呼消息。
相应的，终端接收接入网设备发送的寻呼消息。
接入网设备广播寻呼消息，指的是接入网设备向其管理的终端发送寻呼消息。下文中接入网设备广播寻呼消息的具体含义，也可参见此处描述。
其中，寻呼消息包含终端标识。终端监听到包含自身标识的寻呼消息时，可以进一步解析该寻呼消息，从而获知有业务数据到达。
本申请实施例提供的寻呼方法，当核心网设备在第二时刻接收到对应于终端的业务数据时，可以基于不同情况在不同的TA内发起寻呼。具体的，若第二时刻与第三时刻的时间间隔大于第一时长，则核心网设备在第三TA内发送寻呼消息，若第二时刻与第三时刻的时间间隔小于或等于第一时长，则核心网设备在第一TA和/或至少一个第二TA内发送寻呼消息。一方面，在第二时刻与第三时刻的时间间隔大于第一时长的情况下，核心网设备可以仅在一个第三TA内发送寻呼消息，也就是核心网设备可以在一个较小区域内发起寻呼，降低寻呼的信令开销。另一方面，在第二时刻与第三时刻的时间间隔小于或等于第一时长的情况下，核心网设备可以在至少一个TA内发起寻呼，提升寻呼成功的概率。
本申请实施例还提供一种通信方法，该通信方法应用在对终端进行位置管理的过程中。
参见图6，该通信方法包括如下步骤：
S601、接入网设备向终端设备发送基于无线接入网的通知区(Ran-based notification area，RNA)信息。
相应的，终端设备从接入网设备接收RNA信息。
所述RNA信息包含第一RNA标识以及第二RNA标识，所述第一RNA标识为所述终端设备所在第五小区的RNA标识，所述第二RNA标识为所述终端设备在所述定时器超时时预期到达的RNA的标识，第二RNA标识用于所述终端设备执行(Ran-based notification area update，RNAU)。
可选的，RNA信息还包含时间参数。所述时间参数用于配置定时器。所述定时器的定时时长为T2，定时器的起始时刻为第四时刻。当然，时间参数也可以预先配置在终端中。
可选的，所述第四时刻与终端的状态相关。示例性的，第四时刻为所述空闲态的终端设备驻留至所述第五小区的时刻，或者，第四时刻为连接态的终端切换至所述第五小区的时刻，或者所述终端设备进入非激活态的时刻或者所述终端设备执行TAU的时刻。
终端设备从接入网设备接收RNA信息，可以存在多种实现方式。可选的，终端设备接收接入网设备广播的系统消息，所述系统消息携带所述RNA信息。或者，终端设备从接入网设备接收RRC信令，RRC信令携带RNA信息。当然，终端还可以通过其他方式获取RNA信息，本申请实施例不对终端获取RNA信息的具体实现方式作出限定。
可选的，接入网设备中的第一RNA标识和第二RNA标识可以是预配置的。示例性的，接入网设备的管理平台可以预先将第一RNA标识和第二RNA标识下发给接入网设备，接入网设备存储第一RNA标识和第二RNA标识。其中，管理平台根据高空站的移动速度和移动时间计算出高空站的移动距离，并结合高空站的移动轨迹，计算出终端在不同时刻预期所处的RNA。当然，接入网设备也可计算终端在不同时刻预期所处的RNA。
S6021、所述定时器超时时，所述终端设备判断当前所在RNA是否为第二RNA，若所述终端设备当前所在RNA为所述第二RNA，则执行S6022，若所述终端设备当前所在RNA不是所述第二RNA，则执行S6023。
其中，所述第二RNA为所述第二RNA标识对应的RNA。
终端通过接收接入网设备发送的系统消息或者RRC信令，可获知在定时器超时时刻所处的RNA。
S6022、所述终端设备不执行RNAU。
由上文可知，接入网设备能够获知终端在不同时刻预期所处RNA。基于此，在定时时长T2内，若终端从第五小区所在第一RNA到达所预期的RNA，即第二RNA，则不必执行RNAU。也就是说，在定时器超时的时刻，终端实际所处RNA与预期所处RNA一致，相当于接入网设备已获知终端在该时刻实际所处RNA，终端不必执行RNAU。
S6023、所述终端设备执行RNAU。
在定时时长内T2，若终端未从第五小区所属的第一RNA到达预期RNA(即第二RNA)，则执行RNAU。也就是说，在定时器超时的时刻，终端实际所处RNA与预期所处RNA不一致，接入网设备并不知道终端该时刻实际所处RNA，此时，终端需执行RNAU，以便接入网设备获知终端实际所处RNA。
其中，终端执行RNAU的流程为现有技术中的流程，这里不再赘述。
本申请实施例提供的通信方法，终端从接入网设备获取RNA信息，并根据第二RNA标识判断是否进行RNAU。其中，RNA信息包含第一RNA标识和第二RNA标识，第一RNA为所在第五小区的RNA标识，第二RNA标识为一定时间后终端预期到达的RNA的标识。与现有技术中，由于高空站高速移动，很可能触发终端频繁执行RNAU相比，在本申请实施例的通信方法中，即使高空站高速移动，终端的服务小区发生变化，由于终端的新服务小区可能处于第二RNA标识对应的第二RNA内，因此，可能不会触发RNAU，进而降低RNAU的频率，同时降低终端能耗。
本申请实施例还提供一种通信方法，该通信方法应用在接入网设备寻呼终端的过程中。
如图7所示，该通信方法包括如下步骤：
S701、接入网设备在第五时刻接收到对应于终端设备的业务数据。
比如，接入网设备在第五时刻接收到应用服务器(例如微信应用服务器)发送的对应于终端的业务数据。
S702、接入网设备判断第五时刻与第六时刻的时间间隔是否大于第二时长，若第五时刻与第六时刻的时间间隔大于第二时长，则执行S703，若第五时刻与第六时刻的时间间隔小于或等于第二时长，则执行S704。
其中，第二时长为上述提及的定时器的定时时长T2。
所述第六时刻为所述第五时刻之前，所述接入网设备确定所述终端设备所在最新RNA的时刻。具体的，第六时刻可以是所述终端设备进行的最近一次RNAU的时刻。终端向接入网设备发送RNAU消息，接入网设备记录接收到RNAU消息的时刻，将该时刻作为第六时刻。或者接入网设备将终端释放为非激活态的时刻作为第六时刻。
当然，还可以采用其他方式确定第六时刻，本申请实施例不对确定第六时刻的方式进行限制。
需要说明的是，在图7所示的方法流程中，S601和S602为可选步骤。
S703、所述接入网设备在第三RNA内发送寻呼消息。
相应的，终端接收接入网设备发送的寻呼消息。
其中，寻呼消息包含终端标识。第三RNA为所述终端设备在所述第五时刻所在的RNA。
以第六时刻为终端执行最近一次RNAU的时刻为例，参见图10，终端在第六时刻执行最近一次的RNAU，接入网设备由此确定终端所在最新RNA为第四RNA。之后，接入网设备于第五时刻发起对终端的寻呼。若第五时刻与第六时刻的时间间隔大于定时时长T2，说明自第六时刻开始到定时器超时，并未触发终端执行RNAU，也就意味着，终端实际所处RNA和预期RNA一致，这表明接入网设备(或者上述提及的管理平台)计算出的预期RNA准确度较高。因此，在第五时刻，接入网设备在计算出的预期RNA，即第三RNA内发送寻呼消息。其中，接入网设备可根据高空站的移动速度、移动轨迹、移动时间计算预期RNA，具体计算方法可参见上文，此处不再赘述。
S704、所述接入网设备在第四RNA和/或至少一个第五RNA内发送寻呼消息。
相应的，终端接收接入网设备发送的寻呼消息。
第四RNA为所述终端设备在所述第六时刻所在的RNA。
每一第五RNA为所述终端设备在从所述第六时刻开始每间隔第二时长预期到达的RNA。比如，第一个第五RNA可以为自第六时刻开始间隔定时时长T2预期到达的RNA，第二个第五RNA可以为自第六时刻开始间隔2个定时时长T2预期到达的RNA。这里，定时时长T2可以相同，也可以不同。比如，第一个T2取10ms，第二个T2取30ms。相应的，第一个第五RNA为自第六时刻开始间隔10ms，终端预期到达的RNA；第二个第五RNA为自第六时刻开始间隔30ms(10ms+20ms)，终端预期到达的RNA。
参见图11，在本申请实施例中，若第五时刻与第六时刻的时间间隔小于或等于定时时长T2，由于并未到达判断是否执行下一次RNAU的时刻(即自第六时刻开始定时时长到达的时刻)，所以，接入网设备无法确保计算出的预期RNA的准确度。此时，接入网设备可在第四RNA和/或至少一个第五RNA内发起寻呼。示例性的，接入网设备可以仅在第 四RNA内发起寻呼，这样，当终端的移动速度较慢或者终端并未移动时，接入网设备可能寻呼成功，并且，由于接入网设备仅在一个RNA内发起寻呼，可节约寻呼的信令开销。在又一示例中，接入网设备可在第四RNA和一个第五RNA内发起寻呼。当然，接入网设备还可以在第四RNA和多个第五RNA内发起寻呼。
S705、若所述接入网设备未寻呼到所述终端设备，则所述接入网设备在所述第四RNA相邻的一个或多个RNA和/或至少一个第五RNA相邻的一个或多个RNA内发送寻呼消息。
相应的，终端接收接入网设备发送的寻呼消息。
示例性的，接入网设备可以仅在第四RNA相邻的一个或多个RNA内发起寻呼。或者，接入网设备可在第四RNA相邻的一个或多个RNA，以及一个第五RNA相邻的一个或多个RNA内发起寻呼。当然，接入网设备还可以在第四RNA相邻的一个或多个RNA，以及多个第五RNA分别相邻的RNA(比如第一个第五RNA相邻的一个或多个RNA，以及第二个第五RNA相邻的一个或多个RNA)内发起寻呼。
本申请实施例提供的寻呼方法，接入网设备在第五时刻可以基于不同情况在不同的RNA内发起寻呼。具体的，若第五时刻与第六时刻的时间间隔大于第二时长，则接入网设备在第三RNA内发送寻呼消息，若第五时刻与第六时刻的时间间隔小于或等于第二时长，则接入网设备在第一RNA和/或至少一个第二RNA内发送寻呼消息。一方面，在第五时刻与第六时刻的时间间隔大于第二时长的情况下，接入网设备可以仅在一个第三RNA内发送寻呼消息，降低寻呼的信令开销。另一方面，在第五时刻与第六时刻的时间间隔小于或等于第二时长的情况下，接入网设备可以在至少一个RNA内发起寻呼，提升寻呼成功的概率。
可以理解的是，本申请实施例中的网元为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本申请中所公开的实施例描述的各示例的单元及算法步骤，本申请实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本申请实施例的技术方案的范围。
本申请实施例可以根据上述方法示例对网元进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
图12示出了本申请实施例中提供的通信装置的一种示意性框图，该通信装置可以为上述的终端或者接入网设备或者核心网设备。该通信装置1200可以以软件的形式存在，还可以为可用于设备的芯片。通信装置1200包括：处理单元1202和通信单元1203。
可选的,通信装置1200还可以包括存储单元1201，用于存储通信装置1200的程序代码和数据，数据可以包括不限于原始数据或者中间数据等。
若通信装置1200为终端，处理单元1202可以用于支持终端执行图3、图5中的S302、图4中的S3021、S3022或者S3023、图6中的S6021、S6022或者S6023、图7中的S602等，和/或用于本文所描述的方案的其它过程。通信单元1203用于支持终端和其他网元(例 如上述接入网设备等)之间的通信，例如支持终端执行图3、图4、图5中的S301、图5中的S506、图6、图7中的S601、图7中的S703或者S704，以及在图7中执行S703或者S704未寻呼到终端后，支持终端执行图7中的S705等。
若通信装置1200为接入网设备，处理单元1202可以用于支持接入网设备执行图7中的S701、S702，和/或用于本文所描述的方案的其它过程。通信单元1203用于支持接入网设备和其他网元(例如上述核心网设备或者终端等)之间的通信，例如支持接入网设备执行图3、图4、图5中的S301、图5中的S503或者S504以及在图5中执行S503或者S504未寻呼到终端后，支持接入网设备执行S505、图5中的S506、图6、图7中的S601、图7中的S703或者S704，以及在图7中执行S703或者S704未寻呼到终端后，支持终端执行图7中的S705等。
若通信装置1200为核心网设备，处理单元1202可以用于支持核心网设备执行图5中的S501、S502，和/或用于本文所描述的方案的其它过程。通信单元1203用于支持核心网设备和其他网元(例如上述接入网设备等)之间的通信，例如支持核心网设备执行图5中的S503或者S504以及在图5中执行S503或者S504未寻呼到终端后，支持核心网设备执行S505等。
一种可能的方式中，处理单元1202可以是控制器或图4所示的处理器401或处理器405，例如可以是中央处理器(Central Processing Unit，CPU)，通用处理器，数字信号处理(Digital Signal Processing，DSP)，应用专用集成电路(Application Specific Integrated Circuit，ASIC)，现场可编程门阵列(Field－Programmable Gate Array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信单元1203可以是收发器、收发电路或图4所示的通信接口404等。存储单元1201可以是图4所示的存储器403。
在本申请的另一些实施例中，还提供一种通信方法、装置及系统。其中，通信方法的详细说明如下：
NR的系统带宽较大，至少为100MHz。而终端设备由于能力不同，所支持的最大带宽也不同，某些终端设备可能只能支持80MHz、40MHz或者20MHz，甚至更小的带宽。因此，通常情况下，在NR中为了适应终端设备所支持的最大带宽的需求，引入了带宽部分(bandwidth part，BWP)的概念。
具体的，目前通过为终端设备配置BWP，以适应终端设备能够支持的最大带宽。此外，为了实现对终端设备的灵活调度，可以为终端设备配置多种不同带宽的BWP。
其中，现有技术中，基站通过广播同步信号块(synchronous signal block，SSB)以便终端设备进行驻留。SSB中携带主同步信号(primary synchronization signal，PSS)、辅同步信号(secondary synchronization signal，SSS)和物理广播信道(physical broadcast channel，PBCH)。PBCH中携带主系统信息块(master information block，MIB)。MIB包括控制资源集合(control resource set，CORESET)0的配置信息(例如CORESET0的带宽大小、频域位置等)、和SIB1的物理下行控制信道(physical downlink control channel，PDCCH)的配置信息(例如PDCCH的时域配置信息等)。终端设备在接收到MIB后，确定初始BWP (initial BWP)的带宽为CORESET0的带宽，然后在initial BWP上接收SIB1的调度信息，并根据SIB1的调度信息在initial BWP上接收SIB1。
为了节省终端设备的功耗，通常情况下，在MIB中配置的CORESET0的带宽的较小，但是现有技术中为了使得终端设备能够满足业务的需求，在SIB1中携带带宽参数，该带宽参数用于指示initial BWP的重置带宽大小。当终端设备接收到SIB1后，根据带宽参数调整初始BWP的带宽大小，使得终端设备工作在重置带宽大小的initial BWP上。一般情况下initial BWP的重置带宽大小大于CORESET0的带宽的大小，因此，当终端设备工作在重置带宽大小的initial BWP后，对于空闲(idle)状态的终端设备来说，容易导致增大终端设备的耗电量，从而降低终端设备的性能。
为了解决上述技术问题，本申请实施例提供一种通信方法、装置及系统，有助于提高终端设备调整初始BWP的带宽大小的灵活性，从而提高终端设备的性能。
应理解，本申请实施例可以应用于但不限于NR系统，还可以应用于长期演进(long term evolution，LTE)系统，长期演进高级(long term evolution-advanced，LTE-A)系统、增强的长期演进技术(enhanced long term evolution-advanced，eLTE)等通信系统中，也可以扩展到如无线保真(wireless fidelity，WiFi)、全球微波互联接入(worldwide interoperability for microwave access，wimax)、以及第三代合作伙伴计划(3rd generation partnership project，3GPP)等相关的蜂窝系统中。
示例的，如图13所示，为本申请实施例适用的一种可能的通信系统的架构示意图。如图13所示的通信系统包括网络设备和终端设备。本申请实施例中对通信系统中网络设备的数量、终端设备的数量不作限定，而且本申请实施例所适用的通信系统中除了包括网络设备和终端设备以外，还可以包括其它设备，如核心网设备、无线中继设备和无线回传设备等，对此本申请实施例也不作限定。以及，本申请实施例中的网络设备可以将所有的功能集成在一个独立的物理设备，也可以将功能分布在多个独立的物理设备上，对此本申请实施例也不作限定。此外，本申请实施例中的终端设备可以通过无线方式与网络设备连接。还需要说明的是，本申请实施例中的终端设备可以是固定位置的，也可以是可移动的。
应理解，图13仅为通信系统的一个架构示意图。在图13所示的通信系统中，终端设备可以发送上行数据给网络设备，网络设备可以发送下行数据给终端设备。另外，当图13所示的通信系统中包括的终端设备的数量大于或等于2时，还可以由终端设备组成一个通信系统，例如，图13所述的通信系统中终端设备的数量3时，通信系统的架构可以如图14所示，包括网络设备、终端设备1、终端设备2和终端设备3，网络设备可以发送下行数据给终端设备1、终端设备2和终端设备3，终端设备1可以发送下行数据给终端设备2和终端设备3。本申请实施例也可以应用于由终端设备1、终端设备2和终端设备3组成的通信系统中。在终端设备1、终端设备2和终端设备3组成的通信系统中，终端设备1可以相当于本申请实施例的网络设备，终端设备2和终端设备3相当于本申请实施例的终端设备。
本申请实施例中的网络设备为接入网侧一种用于发射或接收信号的实体，可用于将终端设备接入到通信系统中。具体的，网络设备可以是基站(node B)、演进型基站(evolved node B，eNB)、5G中的基站、未来移动通信系统中的基站或无线保真(wireless fidelity，WiFi)系统中的接入节点等，对网络设备所采用的具体技术和具体设备形态不作限定。
本申请实施例中的终端设备为用户侧一种用于发射或接收信号的实体，也可以称为终端(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等。具体的，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，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等，对此不作限定。
应理解，本申请实施例中的网络设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和人造卫星上等，对网络设备和终端设备的应用场景不做限定。
应理解，本申请实施例中网络设备和终端设备之间以及终端设备和终端设备之间可以通过授权频谱(licensed spectrum)进行通信，也可以通过免授权频谱(unlicensed spectrum)进行通信，也可以同时通过授权频谱和免授权频谱进行通信，对此不做限定。无线接入网设备和终端设备之间以及终端设备和终端设备之间可以通过6吉兆赫(gigahertz，GHz)以下的频谱进行通信，也可以通过6GHz以上的频谱进行通信，还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的实施例对网络设备和终端设备之间所使用的频谱资源不做限定。
以下对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
1、频域资源。本申请实施例中的频域资源指的是在频域上用于通信的物理资源。例如，频域资源可以为BWP、资源块等。
2、BWP。本申请实施中的BWP指的是一段连续或非连续的频域资源，其中这段连续或非连续的频域资源的带宽大小在频域上小于或等于终端设备支持的最大带宽，可以用于物理信道信息或物理信号信息的传输。物理信道信息包括物理上下行控制信道信息和物理上下行共享信道信息。示例的，如图15所示，BWP1为整个通信系统带宽中的一段连续的频域资源，BWP2为整个通信系统带宽中非连续的频域资源，其中BWP2包括BWP20和BWP21，BWP20与BWP21之间是非连续的。需要说明的是，不同的终端设备的BWP在频域上可以有重叠，也可以没有重叠，对此不作限定。
3、初始BWP。本申请实施例中的初始BWP又可称之为initial BWP。在本申请实施例中初始BWP可以为初始下行BWP(initial downlink BWP，简称initial DL BWP)，可用于承载SIB1等。
4、处于空闲态的终端设备。本申请实施例中处于空闲态的终端设备又可称之为idle UE。需要说明的是，在idle(空闲)态下，终端设备与网络侧之间没有任何连接。例如，终端设备刚开机时处于idle态。
5、处于非激活态的终端设备。本申请实施例中处于非激活态的终端设备又可称之为inactive UE。需要说明的是，在inactive(非激活)态下，终端设备与接入网侧的网络设备之间没有连接，但是针对终端设备，接入网侧的网络设备和核心网侧的网络设备之间存在相应连接。
6、处于连接态的终端设备。本申请实施例中处于连接态的终端设备又可称之为active  UE。需要说明的是，在active(连接)态下，终端设备与网络侧之间的均是连接的。而且，在active态下，终端可以与网络设备之间传输数据。
由于终端设备是根据网络设备配置的带宽参数确定初始BWP的带宽大小的。例如，终端设备在PBCH上接收到MIB后，确定初始BWP的带宽大小为MIB中包括CORESET0的带宽大小。然后终端设备在CORESET0的带宽大小的初始BWP上接收SIB1，现有技术中为了满足业务的需求，在SIB1中携带初始BWP的带宽大小的重置参数，然后终端设备根据重置参数，重置初始BWP的带宽大小。但是对于终端设备来说，终端设备在接收到SIB1之后，若根据重置参数重置初始BWP的带宽大小，有可能导致终端设备的耗电量增加。例如终端设备处于空闲态，在重置后的初始BWP的带宽大小大于CORESET0的带宽大小的情况下，则基于上述初始BWP的带宽大小的调整方式则导致终端设备的耗电量的增加。因此，对于终端设备来说，仅仅根据带宽参数指示的初始BWP的带宽大小调整初始BWP的带宽大小的方式灵活性较差，有可能导致终端设备的性能较差。参见图17，为本申请实施例提供的一种初始BWP与RAR CORESET的带宽大小之间的关系示例。
为了提高初始BWP的带宽大小调整的灵活性，本申请提供另一实施例，通过终端设备在不同状态确定调整初始BWP的带宽大小。下面以图13所示的通信系统架构为例对本申请实施例进行详细说明。具体的，如图16所示，一方面，本申请该实施例通信方法主要包括以下步骤：
终端设备接收网络设备广播的主信息块(master information block，MIB)，所述MIB包括第一带宽参数，所述第一带宽参数用于指示终端设备的初始带宽部分BWP的带宽大小为第一带宽；
终端设备接收网络设备广播的系统信息块(system information block，SIB)，所述SIB包括第二带宽参数，所述第二带宽参数用于指示终端设备的初始带宽部分BWP的带宽为第二带宽；
所述终端设备确定所述初始BWP的带宽大小为第一带宽或第二带宽；
一种可选的设计中，所述终端设备确定所述初始BWP的带宽为第一带宽或第二带宽，包括；所述终端设备确定所述初始BWP的带宽大小为所述第一带宽；其中，所述终端设备处于空闲态或者非激活态。
一种可选的设计中，所述终端设备确定所述初始BWP的带宽为所述第一带宽之后，所述方法还包括：所述终端设备接收所述网络设备发送的第一控制信息。
一种可选的设计中，所述终端设备接收到所述第一控制信息后，所述方法还包括：
所述终端设备重新确定所述终端设备的初始BWP的带宽大小为第二带宽；其中，所述终端设备支持第二带宽。这里需要说明的是，“重新确定”仅用于表达在确定所述初始BWP的带宽大小为所述第一带宽之后，所述终端设备根据所述接收的第一控制信息，确定是否需要切换第一带宽为第二带宽，技术上可以理解为所述终端设备“确定”或者“确定切换”。
具体的，所述第一控制信息为无线资源控制(radio resource control，RRC)重配信息；或者，所述第一控制信息为RRC恢复消息或冲突解决消息，所述终端设备为非激活态。
一种可选的设计中，所述第一控制信息包含第一指示信息，所述第一指示信息用于指示所述终端设备是否调整初始BWP的带宽大小；所述方法还包括：
所述终端设备根据所述第一指示信息，确定所述初始BWP的带宽大小为所述第一带宽或第二带宽；所述第一指示信息承载于专用RRC信令中。
可选的，所述第一控制信息中不包含专用BWP配置信息。
又一可选的，所述第一控制信息中包含专用BWP的配置信息，所述方法还包括：所述终端设备的初始BWP的带宽为第一带宽。
进一步可选的，所述第一带宽大小大于所述第二带宽大小。
一种可选的设计中，所述终端设备根据所述系统信息，确定所述初始BWP的带宽为第一带宽或第二带宽，包括：所述终端设备根据是否支持第一带宽，确定所述初始BWP的带宽大小为所述第一带宽或所述第二带宽。例如，所述终端设备支持第一带宽，确定所述初始BWP的带宽大小为所述第一带宽；又如，所述终端设备不支持第一带宽，确定所述初始BWP的带宽大小为所述第二带宽；其中，所述终端设备处于连接态。
另一方面，本申请该实施例通信方法主要包括以下步骤：
网络设备生成MIB，所述MIB包括第一带宽参数，所述第一带宽参数用于指示终端设备的初始带宽部分BWP的带宽大小为第一带宽；网络设备生成SIB，所述SIB包括第二带宽参数，所述第二带宽参数用于指示终端设备的初始带宽部分BWP的带宽为第二带宽；所述网络设备广播所述MIB和SIB。
一种可选的设计中，所述网络设备还向终端设备发送第一控制信息。
可选的，所述第一控制信息为所述终端设备初始接入之后的第一条RRC重配消息。或者，
可选的，所述第一控制信息为RRC恢复消息或冲突解决消息；其中，所述终端设备为非激活态。
可选的，所述第一控制信息包含第一指示信息，所述第一指示信息用于指示所述终端设备是否调整初始BWP的带宽大小。进一步，所述方法还包括：所述终端设备根据所述第一指示信息，重选确定所述初始BWP的带宽大小为所述第一带宽或第二带宽；所述第一指示信息承载于专用RRC信令中。
下面以网络设备与终端设备交互的方式，示例性阐述本申请该实施例的执行过程。在该具体实施例中，可以包含以下步骤(需要说明的是，以下步骤编号并不限定相应步骤执行的先后顺序)：
步骤1601，网络设备生成系统信息。其中，系统信息包括主信息块(master information block,MIB)和系统信息块(system information block,SIB)。所述MIB包括第一带宽参数，所述第一带宽参数用于指示终端设备的初始带宽部分BWP的带宽大小为第一带宽。所述SIB包括第二带宽参数，所述第二带宽参数用于指示终端设备的初始带宽部分BWP的带宽为第二带宽；
可选地，第一带宽参数为MIB中用于调度SIB1的下行物理控制信道的配置参数，它可以指示控制资源集CORESET0的带宽，第一带宽即指CORESET0的带宽。
可选的，所述SIB可以为SIB1，也可以为其他的系统信息块等，对此不作限定。
另外，需要说明的是，用于终端设备的初始BWP指的是用于承载网络设备向终端设备发送的下行数据的初始BWP。
步骤1602，网络设备广播系统信息。其中，用于承载系统信息的频域资源为初始BWP， 且在初始BWP用于承载系统信息的情况下，初始BWP的带宽大小为第一带宽大小。
步骤1603，终端设备确定初始BWP的带宽大小。具体的，终端设备是第一带宽大小的初始BWP上接收系统信息的。需要说明的是，终端设备在接收系统信息后，确定初始BWP的带宽大小是为了保证终端设备更好的通信，来对当前通信所使用的初始BWP的带宽大小进行相应的调整。其中，终端设备当前通信所使用的初始BWP的带宽大小为承载系统信息的初始BWP的带宽大小。
下面结合终端设备的不同状态情况，对步骤1603进行详细解释。
例如，终端设备处于连接态，根据终端设备是否支持第二带宽，确定初始BWP的带宽大小为第一带宽或第二带宽。具体地，如果终端设备支持第二带宽，确定初始BWP的带宽为第二带宽。如果终端设备不支持第二带宽，确定初始BWP的带宽为第一带宽。因此，在终端设备处于连接态的情况下，若终端设备接收系统信息时工作在第一带宽大小的初始BWP上，如果终端设备支持第二带宽，则终端设备将初始BWP带宽大小从第一带宽大小调整为第二带带宽大小。具体的，终端设备将收发机的射频从第二带宽大小调整为第一带带宽大小。需要说明的是，终端设备处于连接态，可以为当终端设备切换到新的小区的时候，也可以为其他时刻，在此不做限定。
再如，终端设备处于空闲态或者非激活态，终端设备确定初始BWP的带宽大小为第一带宽大小。
但是，在终端设备处于空闲态或者非激活态、终端设备的初始BWP的带宽大小为第一带宽大小的情况下，还可以在终端设备确定初始BWP的带宽大小为第一带宽大小之后，进一步的，若终端设备的状态发生变化或者其它可能的情况，则确定初始BWP的带宽大小为第二带宽大小。也就是说，在终端设备确定初始BWP的带宽大小为第一带宽大小之后，还可以根据终端设备的状态变化或者其他可能的因素或条件，将初始BWP的带宽大小从第一带宽大小调整为第二带宽大小。
例如，在终端设备确定初始BWP的带宽大小为第一带宽大小之后，在终端设备从空闲态或者非激活态进入到连接态的情况下，确定初始BWP的带宽大小为第二带宽大小。例如，终端设备可能在有业务(接听电话、拨打电话等)需求时，会导致终端设备从空闲态或者非激活态进入到连接态。
其中，由于某些终端设备能力受限，无法支持第一带宽大小的初始BWP，其进入连接态之后仍然只能使用第一带宽大小的初始BWP，而网络设备在没获得终端设备的能力信息前，如果认为此终端设备的初始BWP大小为第二带宽，就会导致网络设备发送的数据，终端设备无法接收，因此，需要在网络设备收到终端设备的能力信息后，再决定终端设备的初始BWP的大小，并告知终端设备。需要说明的是，网络设备可以从核心网设备获得终端设备的能力信息，也可以从其他网络设备获得终端设备的能力信息，也可以从终端设备获得终端设备的能力信息，在此不做限定。需要进一步说明的是，网络设备获得终端设备的能力信息后，需要告知终端设备，以便终端设备知道网络设备已经知道它的能力信息，终端设备就可以根据它是否支持第二带宽，重选确定初始BWP的带宽。
可选地，网络设备向终端设备发送第一控制信息，终端设备重选确定所述终端设备的初始BWP的带宽大小为第二带宽大小。具体的，所述终端设备可以根据所述第一控制信息确定所述终端设备的初始BWP的带宽大小为第二带宽大小。其中，第一控制消息用于 告知终端设备网络设备已经知道终端设备能力信息，第一控制信息的形式可以由多种，在此不做限定。
例如，网络设备向终端设备发送的第一控制信息，可以为终端设备初始接入之后的第一条RRC重配消息。对于空闲态或非激活态终端设备，在进行随机接入的过程中，网络设备会向核心网设备或其他网络设备请求终端设备的能力信息，如果请求成功，终端设备在完成初始接入的时候，网络设备已经知道终端设备的能力信息，但是，如果请求不成功，网络设备需要在终端设备完成初始接入之后，向终端设备请求能力信息。在这两种情况下，网络设备在获取到终端设备的能力信息后，会向终端设备发送RRC重配消息。
例如，网络设备向终端设备发送的第一控制信息，可以为RRC恢复消息或冲突解决消息，其中终端设备为非激活态。对于非激活态终端设备，在进行随机接入的过程中，网络设备会向其他网络设备请求终端设备的能力信息，在终端设备收到RRC恢复消息或者冲突解决消息时，就表示网络设备已经获得了终端设备的能力信息。
需要说明的是，当第一控制信息为终端设备初始接入之后的第一条RRC重配消息或者RRC恢复消息或冲突解决消息时，终端设备根据是否支持第二带宽，重选确定或者决定是否切换初始BWP的带宽，包括：如果终端设备支持第二带宽，确定初始BWP的带宽为第二带宽，并将初始BWP的带宽从第一带宽调整至第二带宽；如果终端设备不支持第二带宽，终端设备不需要调整初始BWP的带宽，即保持初始BWP的带宽大小为第一带宽。
再如，网络设备向终端设备发送的第一控制信息，可以包含第一指示信息，所述第一指示信息用于指示所述终端设备是否调整初始BWP的带宽大小。终端设备根据第一指示信息，重选确定初始BWP带宽的大小。具体的，此指示信息可以为1bit，指示初始BWP带宽为第一带宽或第二带宽，可选地，0可以代表为第一带宽，1代表第二带宽，0也可以代表为第二带宽，1代表第一带宽，在此不做限定。此外，此指示信息也可以通过某些信元是否存在来指示，也可以通过某些信元的特殊值进行定义，在此不做限定。需要说明的是，此时的第一控制信息可以为任一条专用RRC消息，例如，安全命令消息，RRC重配消息，在此不做限定。
进一步可选的，网络设备可以向终端设备发送第二控制信息，如果第二控制信息中包含专用BWP的配置，终端设备不调整初始BWP的带宽，即保持初始BWP的带宽为第一带宽。在这种情况下，终端设备在连接态将工作在此专用BWP上，而不是初始BWP上，这时维持初始BWP的带宽为第一带宽，更有利于终端设备在没有业务时工作在一个更加省电的带宽上。如果第二控制信息中不包含专用BWP的配置，终端设备可以根据接收到第一控制信息确定是否调整初始BWP的带宽。需要说明的是，第一控制信息与第二控制信息可以承载在相同消息中，也可以为承载在不同消息中，在此不做限定。可选的，第二控制信息可以为任一条专用RRC消息，例如，安全命令消息，RRC重配消息，在此不做限定。
上述本申请提供的实施例中，从终端设备和网络设备作为执行主体的角度对本申请实施例提供的通信方法进行了介绍。为了实现上述本申请实施例提供的通信方法中的各功能，终端设备和网络设备可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
基于相同的构思，图18所示为本申请提供的一种装置1800。示例的，装置1800包括至少一个处理器1810、存储器1820和收发机1830。其中，处理器1810与存储器1820和收发机1830耦合，本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。
其中，收发机1830用于接收或发送数据。收发机1830可以包括接收机和发送机，接收机用于接收数据，发送机用于发送数据。存储器1820用于存储程序指令。处理器1810用于调用存储器1820中存储的程序指令，执行本申请实施例图16所示的通信方法。
其中，处理器1810可以采用通用的中央处理器(Central Processing Unit，CPU)，微处理器，应用专用集成电路(Application Specific Integrated Circuit，ASIC)，或者一个或多个集成电路，用于执行相关操作，以实现本申请实施例所提供的技术方案。
需要说明的是，在装置1800为终端设备的情况下，处理器1810调用存储器1820中存储的程序指令，实现本申请实施例图16所示的通信方法中由终端设备执行的步骤。在装置1800为网络设备的情况下，处理器1810调用存储器1820中存储的程序指令，实现本申请实施例图16所示的通信方法中由网络设备执行的步骤。
应注意，尽管图18所示的装置1800仅仅示出了处理器1810、收发机1830和存储器1820，但是在具体实现过程中，本领域的技术人员应当明白，该装置1800还包含实现正常运行所必须的其他器件。同时，根据具体需要，本领域的技术人员应当明白，该装置1800还可包含实现其他附加功能的硬件器件。此外，本领域的技术人员应当明白，该装置1800也可仅仅包含实现本申请实施例所必须的器件或模块，而不必包含图18中所示的全部器件。
基于相同的构思，图19所示为本申请实施例提供的一种装置1900。装置1900包括处理模块1901和收发模块1902。其中，收发模块1902用于接收或发送数据，可以通过收发机实现。具体的，收发模块1902为具有收发功能的模块，可以包括接收模块和发送模块，其中接收模块用于接收数据，发送模块用于发送数据。若装置1900为终端设备，处理模块1901用于执行图16所示的通信方法中由终端设备执行的步骤。若装置1900为网络设备，处理模块1901用于执行图16所示的通信方法中由网络设备执行的步骤。
如图20所示，本申请实施例还提供了一种通信系统2000，包括本申请实施例的终端设备和本申请实施例的网络设备。
本领域普通技术人员可以理解：在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包括一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如， 软盘、硬盘、磁带)、光介质(例如，数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络设备(例如终端设备)上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个功能单元独立存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本申请可借助软件加必需的通用硬件的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在可读取的存储介质中，如计算机的软盘，硬盘或光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (24)

  1. 一种通信方法，其特征在于，包括：
    从接入网设备接收跟踪区信息，所述跟踪区信息包含第一跟踪区标识以及第二跟踪区标识，所述第一跟踪区标识为所述终端设备所在第一小区的跟踪区标识，所述第二跟踪区标识用于终端设备执行跟踪区更新TAU；
    根据所述第二跟踪区标识，确定是否执行TAU。
  2. 根据权利要求1所述的通信方法，其特征在于，所述跟踪区信息还包含时间参数；
    所述根据所述第二跟踪区标识，确定是否执行TAU，包括：
    根据所述时间参数以及所述第二跟踪区标识确定是否执行TAU。
  3. 根据权利要求2所述的通信方法，其特征在于，所述时间参数用于配置定时器，所述定时器的定时时长为T；
    所述根据所述时间参数以及所述第二跟踪区标识确定是否执行TAU，包括：
    当所述定时器超时时，根据所述第二跟踪区标识确定是否执行TAU。
  4. 根据权利要求3所述的通信方法，其特征在于，所述定时器的起始时刻为第一时刻，所述第一时刻为所述终端设备驻留到所述第一小区或切换至所述第一小区的时刻或者所述终端设备进入非激活态的时刻或者所述终端设备执行TAU的时刻。
  5. 根据权利要求3或4所述的通信方法，其特征在于，所述第二跟踪区标识不同于所述第一跟踪区标识。
  6. 根据权利要求3至5任意一项所述的通信方法，其特征在于，所述根据所述第二跟踪区标识，确定是否执行TAU，包括：
    在所述定时器超时时，判断所述终端设备当前所在跟踪区是否为第二跟踪区，所述第二跟踪区为所述第二跟踪区标识对应的跟踪区；
    若所述终端设备当前所在跟踪区为所述第二跟踪区，则不执行TAU；和/或，
    若所述终端设备当前所在跟踪区不是所述第二跟踪区，则执行TAU。
  7. 根据权利要求1至6任意一项所述的通信方法，其特征在于，所述方法还包括：
    接收接入网设备发送的寻呼消息。
  8. 根据权利要求1至7任意一项所述的通信方法，其特征在于，所述从接入网设备接收跟踪区信息，包括：
    接收所述接入网设备广播的系统消息，所述系统消息携带所述跟踪区信息。
  9. 一种通信方法，其特征在于，包括：
    向终端设备发送跟踪区信息，所述跟踪区信息包含所述第一跟踪区标识以及第二跟踪区标识，其中，所述第一跟踪区标识为所述终端设备所在第一小区的跟踪区标识，所述第二跟踪标识用于所述终端设备执行跟踪区更新TAU。
  10. 根据权利要求9所述的通信方法，其特征在于，所述方法还包括：
    确定所述第一跟踪区标识以及所述第二跟踪区标识。
  11. 根据权利要求10所述的通信方法，其特征在于，所述确定所述第一跟踪区标识以及所述第二跟踪区标识，包括：
    从核心网设备接收所述第一跟踪区标识和所述第二跟踪区标识，或者，
    接入网设备中预配置有所述第一跟踪区标识和所述第二跟踪区标识。
  12. 根据权利要求9至11任意一项所述的通信方法，其特征在于，所述跟踪区信息还包含时间参数，所述时间参数用于配置所述终端设备的定时器，所述定时器的定时时长为T。
  13. 根据权利要求12所述的通信方法，其特征在于，所述定时器的起始时刻为第一时刻，所述第一时刻为所述终端设备驻留所述第一小区或切换至所述第一小区的时刻或者所述终端设备进入非激活态的时刻或者所述终端设备执行TAU的时刻。
  14. 根据权利要求12或13所述的通信方法，其特征在于，所述第二跟踪区标识不同于所述第一跟踪区标识。
  15. 根据权利要求9至14任意一项所述的通信方法，其特征在于，所述方法还包括：
    从核心网设备接收寻呼消息；
    广播所述寻呼消息。
  16. 根据权利要求9至15任意一项所述的通信方法，其特征在于，所述向终端设备发送跟踪区信息，包括：
    广播系统消息，所述系统消息携带跟踪区信息。
  17. 一种通信方法，其特征在于，包括：
    核心网设备在第二时刻接收到对应于终端设备的业务数据；
    所述核心网设备在第三跟踪区TA内发送寻呼消息，所述第二时刻与第三时刻的时间间隔大于第一时长；或者
    所述核心网设备在第四TA和/或至少一个第五TA内发送寻呼消息，所述第二时刻与所述第三时刻的时间间隔小于或等于第一时长；
    其中，所述第三时刻为所述第二时刻之前，所述核心网设备确定所述终端设备所在最新TA的时刻或所述终端设备通过核心网设备进行注册，或者，所述终端设备进行的最近一次跟踪区更新TAU的时刻。
  18. 根据权利要求17所述的通信方法，其特征在于，所述第三TA为所述终端设备在所述第二时刻所在的TA，所述第四TA为所述终端设备在所述第三时刻所在的TA，每一第五TA为所述终端设备在从所述第三时刻开始每间隔第一时长预期到达的TA。
  19. 根据权利要求17或18所述的通信方法，其特征在于，所述方法还包括：
    若所述核心网设备未寻呼到所述终端设备，则所述核心网设备在所述第四TA相邻的一个或多个TA和/或至少一个第五TA中每一第五TA相邻的一个或多个TA内发送寻呼消息。
  20. 一种通信装置，其特征在于，包括处理器和存储器；
    所述存储器用于存储计算机执行指令，当所述通信装置运行时，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述通信装置执行如权利要求1-8中任意一项所述的通信方法，或者，以使所述通信装置执行如权利要求9-16任意一项所述的通信方法，或者，以使所述通信装置执行如权利要求17-19任意一项所述的通信方法。
  21. 一种通信装置，其特征在于，包括：
    接收模块，用于从接入网设备接收跟踪区信息，所述跟踪区信息包含第一跟踪区标识以及第二跟踪区标识，所述第一跟踪区标识为所述终端设备所在第一小区的跟踪区标识， 所述第二跟踪区标识用于所述终端设备执行跟踪区更新TAU；
    处理模块，用于根据所述第二跟踪区标识，确定是否执行TAU。
  22. 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跟踪区信息，所述跟踪区信息包含所述第一跟踪区标识以及第二跟踪区标识，其中，所述第一跟踪区标识为所述终端设备所在第一小区的跟踪区标识，所述第二跟踪标识用于所述终端设备执行跟踪区更新TAU。
  23. 一种通信装置，其特征在于，包括：
    接收模块，用于在第二时刻接收到对应于终端设备的业务数据；
    发送模块，用于在第三跟踪区TA内发送寻呼消息，所述第二时刻与第三时刻的时间间隔大于第一时长；或者，用于在第四TA和/或至少一个第五TA内发送寻呼消息，所述第二时刻与所述第三时刻的时间间隔小于或等于第一时长；
    其中，所述第三时刻为所述第二时刻之前，所述核心网设备确定所述终端设备所在最新TA的时刻或所述终端设备通过核心网设备进行注册，或者，所述终端设备进行的最近一次跟踪区更新TAU的时刻。
  24. 一种可读存储介质，其特征在于，包括程序或指令，当所述程序或指令被执行时，如权利要求1至8中任一项所述的通信方法被实现，或者，如权利要求9至16中任一项所述的通信方法被实现，或者，如权利要求17至19中任一项所述的通信方法被实现。
PCT/CN2019/107892 2018-09-27 2019-09-25 通信方法及装置 WO2020063679A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112671449A (zh) * 2020-12-09 2021-04-16 中国电子科技集团公司第五十四研究所 一种基于地面规划路由区的低轨卫星通信寻呼方法

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11323944B2 (en) * 2019-10-04 2022-05-03 Samsung Electronics Co., Ltd. Virtual tracking or registration areas for non terrestrial networks
CN112399525B (zh) * 2020-11-03 2021-06-29 上海擎昆信息科技有限公司 一种地面与卫星混合网络的小区系统消息接收方法和系统
CN113329353B (zh) * 2021-06-22 2022-06-21 中国电信股份有限公司 短信发送方法、装置、介质及电子设备
CN115884322A (zh) * 2021-08-04 2023-03-31 展讯通信（上海）有限公司 启动节能模式的方法、通信装置及可读存储介质
WO2023063521A1 (en) * 2021-10-12 2023-04-20 Samsung Electronics Co., Ltd. Method and article of manufacture for providing a mobility management with optimized paging
CN116349305A (zh) * 2021-10-26 2023-06-27 北京小米移动软件有限公司 Ta信息处理方法及装置、通信设备及存储介质
CN116456318A (zh) * 2022-01-07 2023-07-18 华为技术有限公司 通信方法、装置及系统
CN115103347B (zh) * 2022-06-08 2024-05-14 Oppo广东移动通信有限公司 跟踪区更新方法、装置、电子设备和计算机可读存储介质
CN117835348A (zh) * 2024-03-05 2024-04-05 广东世炬网络科技有限公司 一种跟踪区域码的同步对象确定方法、装置、设备及介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102821467A (zh) * 2012-08-27 2012-12-12 中国联合网络通信集团有限公司 无线寻呼方法、装置和系统
CN102958156A (zh) * 2011-08-30 2013-03-06 中国移动通信集团公司 一种追踪区域更新方法及其设备
CN105592540A (zh) * 2014-10-20 2016-05-18 杭州华为数字技术有限公司 一种跟踪区更新装置、系统及方法
WO2016169473A1 (en) * 2015-04-24 2016-10-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for facilitating communications

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8977273B2 (en) * 2007-02-08 2015-03-10 Intel Mobile Communications GmbH Method for selecting a mobile radio area, mobile radio communication device, method for transmitting signals into a mobile radio area, and mobile radio network unit
GB2454647B (en) * 2007-10-05 2010-02-17 Samsung Electronics Co Ltd Mobile communications method and apparatus
CN102045834A (zh) * 2009-10-14 2011-05-04 大唐移动通信设备有限公司 一种TA List的分配方法及装置
CN102457936B (zh) * 2010-11-01 2014-05-07 中国移动通信集团上海有限公司 一种跟踪区列表的配置方法、系统及装置
US8526945B2 (en) * 2011-03-31 2013-09-03 Alcatel Lucent Tracking and paging at boundries in LTE networks
GB2495145A (en) * 2011-09-30 2013-04-03 Nec Corp Relay services used in LTE advanced systems
CN104105118A (zh) * 2014-07-25 2014-10-15 中国科学院计算技术研究所 Lte网络中跟踪区列表配置方法及系统
CN104507067B (zh) * 2014-11-20 2019-04-23 上海华为技术有限公司 一种确定注册区域的方法及移动性管理实体

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102958156A (zh) * 2011-08-30 2013-03-06 中国移动通信集团公司 一种追踪区域更新方法及其设备
CN102821467A (zh) * 2012-08-27 2012-12-12 中国联合网络通信集团有限公司 无线寻呼方法、装置和系统
CN105592540A (zh) * 2014-10-20 2016-05-18 杭州华为数字技术有限公司 一种跟踪区更新装置、系统及方法
WO2016169473A1 (en) * 2015-04-24 2016-10-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for facilitating communications

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
3GPP: "Solutions for NR to Support Non-terrestrial Networks (NTN", 3GPP TR 38.821, no. V0.2.0, 31 October 2018 (2018-10-31), pages 1 - 27, XP051487686 *
See also references of EP3849255A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112671449A (zh) * 2020-12-09 2021-04-16 中国电子科技集团公司第五十四研究所 一种基于地面规划路由区的低轨卫星通信寻呼方法

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