WO2019144417A1 - 搜索小区的方法和终端设备 - Google Patents

搜索小区的方法和终端设备 Download PDF

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Publication number
WO2019144417A1
WO2019144417A1 PCT/CN2018/074493 CN2018074493W WO2019144417A1 WO 2019144417 A1 WO2019144417 A1 WO 2019144417A1 CN 2018074493 W CN2018074493 W CN 2018074493W WO 2019144417 A1 WO2019144417 A1 WO 2019144417A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
cell
state
timer
search
Prior art date
Application number
PCT/CN2018/074493
Other languages
English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP18902818.6A priority Critical patent/EP3720195B1/en
Priority to RU2020125046A priority patent/RU2747206C1/ru
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to JP2020540534A priority patent/JP7105895B6/ja
Priority to SG11202006596PA priority patent/SG11202006596PA/en
Priority to MX2020007884A priority patent/MX2020007884A/es
Priority to CN202010280774.XA priority patent/CN111465069B/zh
Priority to CA3088325A priority patent/CA3088325C/en
Priority to CN201880048085.7A priority patent/CN110945918A/zh
Priority to BR112020014541-6A priority patent/BR112020014541A2/pt
Priority to PCT/CN2018/074493 priority patent/WO2019144417A1/zh
Priority to AU2018404498A priority patent/AU2018404498B2/en
Priority to KR1020207023302A priority patent/KR102408727B1/ko
Priority to TW108103131A priority patent/TWI797241B/zh
Publication of WO2019144417A1 publication Critical patent/WO2019144417A1/zh
Priority to US16/878,216 priority patent/US10952136B2/en
Priority to US17/171,722 priority patent/US11425642B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • 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
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • 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
    • 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

  • Embodiments of the present invention relate to the field of communications, and more particularly, to a method and a terminal device for searching for a cell.
  • RRC Radio Resource Control
  • RRC_INACTIVE radio resource control inactive
  • the network side configures a paging area of the radio access network (RAN) for the UE, and does not notify the network side when the UE moves within the paging area.
  • RAN radio access network
  • the network side configures a paging area of the radio access network (RAN) for the UE, and does not notify the network side when the UE moves within the paging area.
  • RRC_IDLE that is, the cell selection reselection principle.
  • the UE moves out of the paging area, the UE is triggered to resume the RRC connection and re-acquire the paging area configured on the network side.
  • the UE in the INACTIVE state may not find a suitable cell camping, and the UE may enter any cell search state, and may select an acceptable cell camp. It can be found that how to control the state of the UE and the UE context, and how to ensure the controllability of the UE behavior is an urgent problem to be solved.
  • a method and a terminal device for searching a cell are provided, which can be applied to an existing protocol framework as much as possible, and can be promoted.
  • a method for searching for a cell is provided, which is applied to a terminal device in an inactive state, where the inactive state refers to the terminal device being disconnected from a network device, and the network device and the terminal are The device retains context information of the terminal device, where the context information is used to establish a connection between the terminal device and the network device;
  • the method includes:
  • the terminal device When the terminal device does not search for a suitable cell to camp, it enters an arbitrary cell search state to search for an acceptable cell and/or the suitable cell, and the acceptable cell is a only limited access service that the terminal device can camp on.
  • a cell where the suitable cell is a cell that can be used by the terminal device to obtain normal service.
  • the existing protocol framework can be applied as much as possible. , increase the scalability.
  • the UE behavior can be ensured to be controllable by clarifying the UE status and the UE context information.
  • the method further includes:
  • the terminal device searches for the acceptable cell, it camps on the acceptable cell and continues to search for the suitable cell.
  • the method further includes:
  • the first timer is started
  • the terminal device When the first timer expires and the suitable cell is not searched, the terminal device enters an idle state and deletes the context information.
  • the terminal device stops the first timer and camps on the suitable cell.
  • the method before the terminal device starts the first timer, the method further includes:
  • the terminal device receives configuration information sent by the network device, where the configuration information is used to configure the first timer for the terminal device.
  • the configuration information is information that is configured by the network device when the terminal device indicates that the terminal device enters the inactive state.
  • the method further includes:
  • the terminal device When the terminal device enters an arbitrary cell search state, it enters an idle state and deletes the context information.
  • the method further includes:
  • the inactive state and the second timer are continuously maintained, and the second timer includes a location update timer.
  • the method further includes:
  • the terminal device After the second timer expires, the terminal device enters an idle state and deletes the following information.
  • the method further includes:
  • the terminal device After the terminal device enters an idle state and deletes the following information, the terminal device continues to remain in any search cell state.
  • the terminal device in the INACTIVE state searches for an acceptable cell and/or the suitable cell by entering an arbitrary cell search state when no suitable cell camping is searched, and by clearing the UE state and the UE context information, It can guarantee that the UE behavior can be controlled.
  • a second aspect provides a terminal device, where the terminal device is in an inactive state, where the inactive state refers to the terminal device being disconnected from the network device, and the network device and the terminal device are reserved. Having context information of the terminal device, where the context information is used to establish a connection between the terminal device and the network device;
  • the terminal device includes:
  • a processing unit configured to: when the terminal device does not search for a suitable cell to camp, enter an arbitrary cell search state to search for an acceptable cell and/or the suitable cell, where the acceptable cell is only the terminal device can reside A cell that restricts the service is obtained, where the suitable cell is a cell that can be used by the terminal device to obtain normal service.
  • a third aspect provides a terminal device, where the terminal device is in an inactive state, where the inactive state refers to the terminal device being disconnected from the network device, and the network device and the terminal device are reserved. Having context information of the terminal device, where the context information is used to establish a connection between the terminal device and the network device;
  • the terminal device includes:
  • a processor when the terminal device does not search for a suitable cell camping, enters an arbitrary cell search state to search for an acceptable cell and/or the suitable cell, where the acceptable cell is only the terminal device can camp on A cell that restricts the service is obtained, where the suitable cell is a cell that can be used by the terminal device to obtain normal service.
  • a computer readable medium for storing a computer program comprising instructions for performing the method embodiment of the first aspect described above.
  • a fifth aspect provides a computer chip, including: an input interface, an output interface, at least one processor, and a memory, wherein the processor is configured to execute code in the memory, when the code is executed, the processing.
  • a communication system including the terminal device described above.
  • FIG. 2 is a schematic flowchart of a method for selecting a cell according to an embodiment of the present invention.
  • FIG. 3 is a schematic block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 4 is another schematic block diagram of a terminal device according to an embodiment of the present invention.
  • Embodiments of the present invention can be applied to any communication system including a terminal device in an RRC_INACTIVE state. That is, the embodiment of the present invention is exemplified only by the communication system 100, but the embodiment of the present invention is not limited thereto.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • TDD Time Division Duplex
  • Universal Mobile Telecommunication System Universal Mobile Telecommunication System, UMTS
  • 5G etc.
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra-Reliable and Low Latency Communication
  • mMTC Massive Machine Type of Communication
  • eMBB aims at users to obtain multimedia content, services and data.
  • URLLC ultra-Reliable and Low Latency Communication
  • Typical applications for URLLC include: industrial automation, power automation, telemedicine operations (surgery), and traffic safety.
  • Typical features of mMTC include: high connection density, small data volume, delay-insensitive service, low cost and long life of the module.
  • the present invention describes various embodiments in connection with network devices and terminal devices.
  • the network device may refer to any entity on the network side that is used to send or receive signals.
  • it may be a device communication of a machine type communication (MTC), a base station (BTS) in GSM or CDMA, a base station (NodeB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB in LTE). ), base station equipment in a 5G network, and the like.
  • MTC machine type communication
  • BTS base station
  • NodeB base station
  • Evolutional Node B eNB or eNodeB in LTE
  • 5G network and the like.
  • the terminal device can be any terminal device.
  • the terminal device can communicate with one or more core networks (Core Network) via a Radio Access Network (RAN), and can also be referred to as an access terminal, a user equipment (User Equipment, UE), and a user.
  • RAN Radio Access Network
  • UE User Equipment
  • Unit subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • it can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and a wireless communication function.
  • FIG. 1 is a schematic diagram of a communication system in accordance with an embodiment of the present invention.
  • communication system 100 can include terminal device 110 and network device 120.
  • Network device 120 can communicate with terminal device 110 over an air interface.
  • Multi-service transmission is supported between the terminal device 110 and the network device 120.
  • the terminal device 110 may be in an RRC_INACTIVE state.
  • the RRC_INACTIVE state is different from the radio resource control idle (RRC_IDLE) state and the radio resource control activation (RRC_ACTIVE) state.
  • the state of the terminal device 110 may include: an RRC_IDLE state, an RRC_ACTIVE state, and an RRC_INACTIVE state.
  • RRC_ACTIVE There is an RRC connection between the terminal device and the network device for the RRC_ACTIVE state, and the network device and the terminal device store the context information of the terminal device.
  • the location of the terminal device acquired by the network device is at a specific cell level. Its mobility is the mobility controlled by the network device.
  • RRC_IDLE state there is no RRC connection between the terminal device and the network device, and the network device does not store the terminal device context information.
  • paging is initiated by the core network, and the paging area is configured by the core network. Its mobility is cell selection based on terminal equipment or cell reselection.
  • the RRC_INACTIVE state there is a connection between the core network (CN) and the network device, and the context information of the terminal device exists on a certain network device, and the paging is triggered by the Radio Access Network (RAN), and is managed by the RAN.
  • the paging area of the RAN that is, the location of the terminal device acquired by the network device is the paging area level of the RAN. Its mobility is cell selection based on terminal equipment or cell reselection.
  • the connection between the terminal device in the RRC_INACTIVE state and the network device is in a disconnected state, and the network device retains context information of the terminal device, and the context information is used to quickly establish a relationship between the terminal device and the network device. connection.
  • the network device configures the paging device with the paging area of the RAN, and the paging area of the RAN may include multiple cells.
  • the paging area of the RAN may be referred to as an initial paging area, or the paging area pre-configured by the network device as a terminal device may be the initial paging area. That is, when performing cell reselection, the terminal device may trigger the terminal device to resume the RRC connection based on the initial paging area.
  • the UE in the INACTIVE state may not find a suitable cell camping, and the UE may enter any cell search state, and may select an acceptable cell camp. It can be found that how to control the state of the UE and the UE context, and how to ensure the controllability of the UE behavior is an urgent problem to be solved.
  • a cell selection method is provided.
  • the UE state and the UE context information are clarified to ensure that the UE behavior is controllable and controllable. .
  • FIG. 2 is a schematic flowchart of a method for a terminal device to select a cell according to an embodiment of the present invention.
  • the method for selecting a cell by the terminal device in the embodiment of the present invention may be applied to a terminal device in an inactive state, where the inactive state refers to the terminal device being disconnected from the network device, and the network device and the terminal device Having the context information of the terminal device, the context information is used to establish a connection between the terminal device and the network device;
  • the method includes:
  • the terminal device starts searching for a suitable cell.
  • the terminal device does not search for the suitable cell, the user enters an arbitrary cell search state to search for an acceptable cell and/or the suitable cell, where the acceptable cell is a cell that can only be used by the terminal device to obtain the restricted service.
  • the acceptable cell is a cell that can only be used by the terminal device to obtain the restricted service.
  • a suitable cell is a cell that can be used by the terminal device to acquire normal services.
  • the service types in the RRC_IDLE mode include, but are not limited to, the following single service types:
  • Operator Service Used by operators on a reserved cell.
  • the services that can be provided include, but are not limited to, the following cell types:
  • the UE can camp and get normal service.
  • Forbidden cell The system information indicates that the cell is barred.
  • the reserved cell in the system information is reserved.
  • the cell selection generally occurs after the Public Land Mobile Network (PLMN) selection.
  • PLMN Public Land Mobile Network
  • the purpose of the cell is to enable the UE to select a channel quality as soon as possible after booting.
  • the conditional cells are camped, and the cell selection mainly includes two major categories.
  • the terminal device searches for the acceptable cell, it camps on the acceptable cell and continues to search for the suitable cell.
  • the existing protocol framework can be applied as much as possible. , increase the scalability.
  • the UE behavior can be ensured to be controllable by clarifying the UE status and the UE context information.
  • the following describes the processing mode of the UE state and the UE context information when the terminal device of the embodiment of the present invention enters an arbitrary cell search state.
  • the terminal device when the terminal device enters an arbitrary cell search state, the first timer is started; when the first timer expires, and the suitable cell is not searched, the terminal device enters an idle state and deletes the context information; When the first timer does not time out, and the suitable cell is searched, the terminal device stops the first timer and camps on the suitable cell.
  • the terminal device receives configuration information sent by the network device, where the configuration information is used to configure the first timer for the terminal device.
  • the configuration information is information that the network device configures for the terminal device when the terminal device enters the inactive state.
  • the terminal device when the terminal device enters any cell search state, it can directly enter the idle state and delete the context information.
  • the inactive state and the second timer are continuously maintained, and the second timer includes a location update timer.
  • the terminal device enters an idle state and deletes the following information.
  • the terminal device may further maintain the state of any search cell.
  • the processing manner of the UE state and the UE context information is only an exemplary description, and the embodiment of the present invention is not limited thereto.
  • the terminal device can also determine a specific processing manner according to user requirements.
  • FIG. 3 is a schematic block diagram of a terminal device 300 according to an embodiment of the present invention. It should be understood that the terminal device is in an inactive state, and the inactive state refers to that the terminal device is in a disconnected state from the network device, and the network device and the terminal device both retain context information of the terminal device, and the context information is used for Establish a connection between the terminal device and the network device.
  • the terminal device 300 includes:
  • the processing unit 310 is configured to: when the terminal device does not search for a suitable cell to camp, enter an arbitrary cell search state to search for an acceptable cell and/or the suitable cell, where the acceptable cell is an only available limit for the terminal device to camp on.
  • a cell of a service where the suitable cell is a cell that can be used by the terminal device to obtain normal service.
  • the processing unit 310 is further configured to: when the terminal device searches for the acceptable cell, camp on the acceptable cell, and continue to search for the suitable cell.
  • processing unit 310 is further configured to:
  • the first timer is started
  • the first timer does not time out, and when the suitable cell is searched, the first timer is stopped and camped on the suitable cell.
  • the terminal device further includes:
  • the transceiver unit 320 is configured to receive configuration information sent by the network device before the processing unit 310 starts the first timer, where the configuration information is used to configure the first timer for the terminal device.
  • the configuration information is information that is configured by the network device when the terminal device enters the inactive state.
  • processing unit 310 is further configured to:
  • the terminal device When the terminal device enters any cell search state, it enters an idle state and deletes the context information.
  • processing unit 310 is further configured to:
  • the inactive state and the second timer are continuously maintained, and the second timer includes a location update timer.
  • processing unit 310 is further configured to:
  • the second timer After the second timer expires, it enters an idle state and deletes the following information.
  • processing unit 310 is further configured to:
  • the terminal device After the terminal device enters the idle state and deletes the following information, it continues to maintain the state of any search cell.
  • the processing unit 310 may be implemented by a processor, and the transceiver unit 320 may be implemented by a transceiver.
  • the terminal device 400 may include a processor 410, a transceiver 420, and a memory 430.
  • the memory 430 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 410.
  • the various components in the terminal device 400 are connected by a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the terminal device 400 shown in FIG. 4 can implement various processes implemented by the terminal device in the foregoing method embodiments. To avoid repetition, details are not described herein again. That is to say, the method embodiment in the embodiment of the present invention may be applied to a processor or implemented by a processor.
  • each step of the method embodiment in the embodiment of the present invention may be completed by using an integrated logic circuit of hardware in the processor or an instruction in a software form. More specifically, the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the processor may be an integrated circuit chip with signal processing capability, and the methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or executed.
  • the above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or Other programmable logic devices, transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • the memory in the embodiment of the present invention may also be a static random access memory (SRAM), a dynamic random access memory (DRAM), or a dynamic random access memory (DRAM).
  • SDRAM Synchronous dynamic random access memory
  • DDR double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection Synchro link DRAM
  • DR RAM direct memory bus
  • the words “at time” as used herein may be interpreted as “if” or “if” or “when” or “in response to determining” or “in response to detecting” ".
  • the phrase “if determined” or “if detected (conditions or events stated)” may be interpreted as “when determined” or “in response to determination” or “when detected (stated condition or event) "Time” or “in response to a test (condition or event stated)”.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • 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, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in the embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product stored in a storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk.

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Abstract

提供了一种搜索小区的方法和终端设备，该方法应用于处于非激活状态的终端设备，该非激活状态指该终端设备与网络设备处于断开状态，且该网络设备和该终端设备均保留有该终端设备的上下文信息，该上下文信息用于建立该终端设备和该网络设备之间的连接；该方法包括：该终端设备没有搜索到合适小区驻留时，进入任意小区搜索状态搜索可接受小区和/或该合适小区。本发明实施例中，处于INACTIVE状态的终端设备在没有搜索到合适小区驻留时，通过进入任意小区搜索状态搜索可接受小区和/或该合适小区，能够尽可能的适用现有的协议框架，增加可推广性。进一步地，还可以通过明确UE状态和UE上下文信息，能够保证UE行为可管可控。

Description

搜索小区的方法和终端设备 技术领域
本发明实施例涉及通信领域，并且更具体地，涉及搜索小区的方法和终端设备。
背景技术
随着人们对速率、延迟、高速移动性、能效的追求以及未来生活中业务的多样性、复杂性。为此，第三代合作伙伴计划(The 3rd Generation Partnership Project，3GPP)国际标准组织开始研发第五代移动通信技术(5-Generation，5G)。5G网络环境中为了降低空口信令和快速恢复无线连接，快速恢复数据业务的目的，定义了一个新的无线资源控制(Radio Resource Control，RRC)状态，即无线资源控制非激活(RRC_INACTIVE)状态。
当用户设备(User Equipment，UE)处于RRC_INACTIVE状态时，网络侧为该UE配置无线接入网(Radio Access Network，RAN)的寻呼区域，当UE在该寻呼区域内移动时不用通知网络侧，遵循RRC_IDLE下的移动性行为，即，小区选择重选原则。当UE移动出该寻呼区域时，会触发UE恢复RRC连接并重新获取网络侧配置的寻呼区域。
当小区信号不好时，则处于INACTIVE状态的UE可能找不到合适的小区驻留，则UE可能会进入任意小区搜索状态，也可能会选择可接受的小区驻留。可以发现，如何控制UE的状态和UE上下文，以及如何保证UE行为可管可控是一个急需解决的问题。
发明内容
提供了一种搜索小区的方法和终端设备，能够尽可能的适用现有的协议框架，增加可推广性。
第一方面，提供了一种搜索小区的方法，应用于处于非激活状态的终端设备，所述非激活状态指所述终端设备与网络设备处于断开状态，且所述网络设备和所述终端设备均保留有所述终端设备的上下文信息，所述上下文信息用于建立所述终端设备和所述网络设备之间的连接；
所述方法包括：
所述终端设备没有搜索到合适小区驻留时，进入任意小区搜索状态搜索可接受小区和/或所述合适小区，所述可接受小区为所述终端设备可驻留的仅可获取限制业务的小区，所述合适小区为所述终端设备可驻留的可获取正常业务的小区。
本发明实施例中，处于INACTIVE状态的终端设备在没有搜索到合适小区驻留时，通过进入任意小区搜索状态搜索可接受小区和/或所述合适小区，能够尽可能的适用现有的协议框架，增加可推广性。
进一步地，还可以通过明确UE状态和UE上下文信息，能够保证UE行为可管可控。
在一些可能的实现方式中，所述方法还包括：
所述终端设备搜索到所述可接受小区时，驻留到所述可接受小区，并继续搜索所述合适小区。
在一些可能的实现方式中，所述方法还包括：
所述终端设备进入任意小区搜索状态时，启动第一定时器；
所述第一定时器超时，且未搜索到所述合适小区时，所述终端设备进入空闲状态并删除所述上下文信息；
所述第一定时器未超时，且搜索到所述合适小区时，所述终端设备停止所述第一定时器，并驻留到所述合适小区。
在一些可能的实现方式中，所述终端设备启动第一定时器之前，所述方法还包括：
所述终端设备接收所述网络设备发送的配置信息，所述配置信息用于为所述终端设备配置所述第一定时器。
在一些可能的实现方式中，所述配置信息为所述网络设备指示所述终端设备进入所述非激活状态时，为所述终端设备配置的信息。
在一些可能的实现方式中，所述方法还包括：
所述终端设备进入任意小区搜索状态时，进入空闲状态并删除所述上下文信息。
在一些可能的实现方式中，所述方法还包括：
所述终端设备进入任意小区搜索状态时，继续维持所述非激活状态和第二定时器，所述第二定时器包括位置更新定时器。
在一些可能的实现方式中，所述方法还包括：
所述第二定时器超时后，所述终端设备进入空闲状态并删除所述下文信息。
在一些可能的实现方式中，所述方法还包括：
所述终端设备进入空闲状态并删除所述下文信息后，所述终端设备继续保持在任意搜索小区状态。
本发明实施例中，处于INACTIVE状态的终端设备在没有搜索到合适小区驻留时，通过进入任意小区搜索状态搜索可接受小区和/或所述合适小区，并通过明确UE状态和UE上下文信息，能够保证UE行为可管可控。
第二方面，提供了一种终端设备，所述终端设备处于非激活状态，所述非激活状态指所述终端设备与网络设备处于断开状态，且所述网络设备和所述终端设备均保留有所述终端设备的上下文信息，所述上下文信息用于建立所述终端设备和所述网络设备之间的连接；
所述终端设备包括：
处理单元，用于所述终端设备没有搜索到合适小区驻留时，进入任意小区搜索状态搜索可接受小区和/或所述合适小区，所述可接受小区为所述终端设备可驻留的仅可获取限制业务的小区，所述合适小区为所述终端设备可驻留的可获取正常业务的小区。
第三方面，提供了一种终端设备，所述终端设备处于非激活状态，所述非激活状态指所述终端设备与网络设备处于断开状态，且所述网络设备和所述终端设备均保留有所述终端设备的上下文信息，所述上下文信息用于建立所述终端设备和所述网络设备之间的连接；
所述终端设备包括：
处理器，用于所述终端设备没有搜索到合适小区驻留时，进入任意小区搜索状态搜索可接受小区和/或所述合适小区，所述可接受小区为所述终端设备可驻留的仅可获取限制业务的小区，所述合适小区为所述终端设备可驻留的可获取正常业务的小区。
第四方面，提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行上述第一方面的方法实施例的指令。
第五方面，提供了一种计算机芯片，包括：输入接口、输出接口、至少一个处理器、存储器，所述处理器用于执行所述存储器中的代码，当所述代码被执行时，所述处理器可以实现上述第一方面及各种实现方式中的选择小 区的方法中由终端设备执行的各个过程。
第六方面，提供了一种通信系统，包括前述所述的终端设备。
附图说明
图1是本发明实施例的通信系统的示例。
图2是本发明实施例的选择小区的方法的示意性流程图。
图3是本发明实施例的终端设备的示意性框图。
图4是本发明实施例的终端设备的另一示意性框图。
具体实施方式
本发明实施例可以适用于任何包括处于RRC_INACTIVE状态的终端设备的通信系统。也就是说，本发明实施例仅以通信系统100进行示例性说明，但本发明实施例不限定于此。
即，本发明实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、5G等。
其中，5G的主要应用场景为：增强移动超宽带(Enhance Mobile Broadband，eMBB)、低时延高可靠通信(Ultra-Reliable and Low Latency Communication，URLLC)、大规模机器类通信(massive machine type of communication，mMTC)。其中，eMBB以用户获得多媒体内容、服务和数据为目标。此外，由于eMBB可能部署在不同的场景中，其能力和需求的差别也比较大。例如，室内，市区，农村等。URLLC的典型应用包括：工业自动化，电力自动化，远程医疗操作(手术)，交通安全保障等。mMTC的典型特点包括：高连接密度，小数据量，时延不敏感业务，模块的低成本和长使用寿命等。
本发明结合网络设备和终端设备描述了各个实施例。
其中，网络设备可以指网络侧的任一种用来发送或接收信号的实体。例 如，可以是机器类通信(MTC)的用户设备、GSM或CDMA中的基站(Base Transceiver Station，BTS)、WCDMA中的基站(NodeB)、LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)、5G网络中的基站设备等。
此外，终端设备可以是任意终端设备。具体地，终端设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网(Core Network)进行通信，也可称为接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。例如，可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及5G网络中的终端设备等。
图1是本发明实施例的通信系统的示意图。
如图1所示，通信系统100可以包括终端设备110和网络设备120。网络设备120可以通过空口与终端设备110通信。终端设备110和网络设备120之间支持多业务传输。其中，终端设备110可以处于RRC_INACTIVE状态。
其中，RRC_INACTIVE状态是有别于无线资源控制空闲(RRC_IDLE)状态和无线资源控制激活(RRC_ACTIVE)状态。
为便于方案的理解，下面对终端设备的状态进行一个简单介绍。
本发明实施例中，该终端设备110的状态可以包括：RRC_IDLE状态、RRC_ACTIVE状态以及RRC_INACTIVE状态。
其中，针对RRC_ACTIVE状态，终端设备和网络设备之间存在RRC连接，网络设备和终端设备存储有该终端设备的上下文信息。网络设备获取的终端设备的位置是具体小区级别的。其移动性是由网络设备进行控制的移动性。针对RRC_IDLE状态，终端设备和网络设备之间不存在RRC连接，网络设备也不存储终端设备上下文信息。在需要寻呼该终端设备时，由核心网络发起寻呼，由核心网络配置寻呼区域。其移动性为基于终端设备的小区选择或者小区重选。
然而，针对RRC_INACTIVE状态，核心网络(CN)与网络设备之间存在连接，终端设备的上下文信息存在某个网络设备上，由无线接入网(Radio Access Network，RAN)触发寻呼，由RAN管理RAN的寻呼区域，也就是 说，网络设备获取的终端设备位置是RAN的寻呼区域级别的。其移动性为基于终端设备的小区选择或者小区重选。换句话说，处于RRC_INACTIVE状态的终端设备与网络设备的连接处于断开状态，且该网络设备保留有该终端设备的上下文信息，该上下文信息用于快速建立该终端设备和该网络设备之间的连接。
例如，假设终端设备处于RRC_INACTIVE状态时，网络设备为该终端设备配置有RAN的寻呼区域，该RAN的寻呼区域可以包括多个小区。为便于描述，本发明实施例中，可选地，可以将该RAN的寻呼区域称为初始寻呼区域，也可以将网络设备为终端设备预配置的寻呼区域成为该初始寻呼区域。也就是说，该终端设备在进行小区重选时，可以基于该初始寻呼区域触发终端设备进行恢复RRC连接。
当小区信号不好时，则处于INACTIVE状态的UE可能找不到合适的小区驻留，则UE可能会进入任意小区搜索状态，也可能会选择可接受的小区驻留。可以发现，如何控制UE的状态和UE上下文，以及如何保证UE行为可管可控是一个急需解决的问题。
为了解决上述问题，本发明实施例中，提供了一种小区选择的方法，通过对INACTIVE状态UE在移动过程中小区信号不好时，明确UE状态和UE上下文信息，保证UE行为可管可控。
图2是本发明实施例的终端设备选择小区的方法的示意性流程图。
应理解，本发明实施例中的终端设备选择小区的方法可应用于处于非激活状态的终端设备，该非激活状态指该终端设备与网络设备处于断开状态，且该网络设备和该终端设备均保留有该终端设备的上下文信息，该上下文信息用于建立该终端设备和该网络设备之间的连接；
如图2所示，该方法包括：
210，该终端设备开始搜索合适小区。
220，该终端设备没有搜索到该合适小区时，进入任意小区搜索状态搜索可接受小区和/或该合适小区，该可接受小区为该终端设备可驻留的仅可获取限制业务的小区，该合适小区为该终端设备可驻留的可获取正常业务的小区。
下面补充说明一下RRC_IDLE下的服务类型和小区分类：
本发明实施例中，RRC_IDLE模式下的服务类型包括但不限于以下单重 服务类型：
受限服务：在一个可接受的小区上进行紧急呼叫。
正常服务：合适小区上普通使用。
操作人员服务：在一个保留小区上用于操作人员使用。
本发明实施例中，按可提供的服务包括但不限于以下小区类型：
可接受小区：可获得受限服务(紧急呼叫)。
合适的小区：UE可驻留并获得正常服务。
禁止的小区：系统信息中指示小区为禁止(barred)。
保留的小区：系统信息中指示小区为保留(reserved)小区选择一般发生在公众陆地移动网(Public Land Mobile Network，PLMN)选择之后，它的目的是使UE在开机后可以尽快选择一个信道质量满足条件的小区进行驻留，小区选择主要包括两大类。
进一步地，该终端设备搜索到该可接受小区时，驻留到该可接受小区，并继续搜索该合适小区。
本发明实施例中，处于INACTIVE状态的终端设备在没有搜索到合适小区驻留时，通过进入任意小区搜索状态搜索可接受小区和/或所述合适小区，能够尽可能的适用现有的协议框架，增加可推广性。
进一步地，还可以通过明确UE状态和UE上下文信息，能够保证UE行为可管可控。
下面对本发明实施例的该终端设备进入任意小区搜索状态时，UE状态和UE上下文信息的处理方式进行示例性说明。
在一个实施例中，该终端设备进入任意小区搜索状态时，启动第一定时器；该第一定时器超时，且未搜索到该合适小区时，该终端设备进入空闲状态并删除该上下文信息；该第一定时器未超时，且搜索到该合适小区时，该终端设备停止该第一定时器，并驻留到该合适小区。
进一步地，该终端设备启动第一定时器之前，该终端设备接收该网络设备发送的配置信息，该配置信息用于为该终端设备配置该第一定时器。
例如，该配置信息为该网络设备指示该终端设备进入该非激活状态时，为该终端设备配置的信息。
在另一个实施例中，该终端设备进入任意小区搜索状态时，可以直接进入空闲状态并删除该上下文信息。
在另一个实施例中，该终端设备进入任意小区搜索状态时，继续维持该非激活状态和第二定时器，该第二定时器包括位置更新定时器。
进一步地，该第二定时器超时后，该终端设备进入空闲状态并删除该下文信息。
应理解，本发明实施例中，该终端设备进入空闲状态并删除该下文信息后，该终端设备还可以继续保持在任意搜索小区状态。
还应理解，本发明实施例中该终端设备进入任意小区搜索状态时，UE状态和UE上下文信息的处理方式仅为示例性描述，本发明实施例不限于此。
例如，该终端设备还可以根据用户需求，确定具体地处理方式。
图3是本发明实施例的终端设备300的示意性框图。应理解，该终端设备处于非激活状态，该非激活状态指该终端设备与网络设备处于断开状态，且该网络设备和该终端设备均保留有该终端设备的上下文信息，该上下文信息用于建立该终端设备和该网络设备之间的连接。
如图3所示，该终端设备300包括：
处理单元310，用于该终端设备没有搜索到合适小区驻留时，进入任意小区搜索状态搜索可接受小区和/或该合适小区，该可接受小区为该终端设备可驻留的仅可获取限制业务的小区，该合适小区为该终端设备可驻留的可获取正常业务的小区。
可选地，该处理单元310还用于：该终端设备搜索到该可接受小区时，驻留到该可接受小区，并继续搜索该合适小区。
可选地，该处理单元310还用于：
该终端设备进入任意小区搜索状态时，启动第一定时器；
该第一定时器超时，且未搜索到该合适小区时，进入空闲状态并删除该上下文信息；
该第一定时器未超时，且搜索到该合适小区时，停止该第一定时器，并驻留到该合适小区。
可选地，该终端设备还包括：
收发单元320，用于该处理单元310启动第一定时器之前，接收该网络设备发送的配置信息，该配置信息用于为该终端设备配置该第一定时器。
可选地，该配置信息为该网络设备指示该终端设备进入该非激活状态时，为该终端设备配置的信息。
可选地，该处理单元310还用于：
该终端设备进入任意小区搜索状态时，进入空闲状态并删除该上下文信息。
可选地，该处理单元310还用于：
该终端设备进入任意小区搜索状态时，继续维持该非激活状态和第二定时器，该第二定时器包括位置更新定时器。
可选地，该处理单元310还用于：
该第二定时器超时后，进入空闲状态并删除该下文信息。
可选地，该处理单元310还用于：
该终端设备进入空闲状态并删除该下文信息后，继续保持在任意搜索小区状态。
本发明实施例中，处理单元310可以由处理器实现，收发单元320可由收发器实现。如图4所示，终端设备400可以包括处理器410、收发器420和存储器430。其中，存储器430可以用于存储指示信息，还可以用于存储处理器410执行的代码、指令等。终端设备400中的各个组件通过总线系统相连，其中，总线系统除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。
图4所示的终端设备400能够实现前述方法实施例中由终端设备所实现的各个过程，为避免重复，这里不再赘述。也就是说，本发明实施例中的方法实施例可以应用于处理器中，或者由处理器实现。
具体地，在实现过程中，本发明实施例中的方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。更具体地，结合本发明实施例公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域的成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
其中，处理器可能是一种集成电路芯片，具有信号的处理能力，可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。例如，上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门 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、分立硬件组件等等。此外，通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
此外，本发明实施例中，存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。应理解，上述存储器为示例性但不是限制性说明，例如，本发明实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
最后，需要注意的是，在本发明实施例和所附权利要求书中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明实施例。
例如，在本发明实施例和所附权利要求书中所使用的单数形式的“一种”、“上述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
又例如，取决于语境，如在此所使用的词语“在……时”可以被解释成为“如果”或“若”或“当……时”或“响应于确定”或“响应于检测”。类似地，取决于语境，短语“如果确定”或“如果检测(陈述的条件或事件)”可以被解释成为“当确定时”或“响应于确定”或“当检测(陈述的条件或事件)时”或“响应于检测(陈述的条件或事件)”。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特 定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明实施例的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请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，机械或其它的形式。
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单元上。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发明实施例的目的。
另外，在本发明实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案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一个存储介质中，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)执行本发明实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
以上内容，仅为本发明实施例的具体实施方式，但本发明实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明实施例的保护范围之内。因此，本发明实施例的保护范围应以权利要求的保护范围为准。

Claims (18)

  1. 一种搜索小区的方法，其特征在于，应用于处于非激活状态的终端设备，所述非激活状态指所述终端设备与网络设备处于断开状态，且所述网络设备和所述终端设备均保留有所述终端设备的上下文信息，所述上下文信息用于建立所述终端设备和所述网络设备之间的连接；
    所述方法包括：
    所述终端设备没有搜索到合适小区驻留时，进入任意小区搜索状态搜索可接受小区和/或所述合适小区，所述可接受小区为所述终端设备可驻留的仅可获取限制业务的小区，所述合适小区为所述终端设备可驻留的可获取正常业务的小区。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述终端设备搜索到所述可接受小区时，驻留到所述可接受小区，并继续搜索所述合适小区。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述终端设备进入任意小区搜索状态时，启动第一定时器；
    所述第一定时器超时，且未搜索到所述合适小区时，所述终端设备进入空闲状态并删除所述上下文信息；
    所述第一定时器未超时，且搜索到所述合适小区时，所述终端设备停止所述第一定时器，并驻留到所述合适小区。
  4. 根据权利要求3所述的方法，其特征在于，所述终端设备启动第一定时器之前，所述方法还包括：
    所述终端设备接收所述网络设备发送的配置信息，所述配置信息用于为所述终端设备配置所述第一定时器。
  5. 根据权利要求4所述的方法，其特征在于，所述配置信息为所述网络设备指示所述终端设备进入所述非激活状态时，为所述终端设备配置的信息。
  6. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述终端设备进入任意小区搜索状态时，进入空闲状态并删除所述上下文信息。
  7. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述终端设备进入任意小区搜索状态时，继续维持所述非激活状态和第二定时器，所述第二定时器包括位置更新定时器。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述第二定时器超时后，所述终端设备进入空闲状态并删除所述下文信息。
  9. 根据权利要求3至8中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备进入空闲状态并删除所述下文信息后，所述终端设备继续保持在任意搜索小区状态。
  10. 一种终端设备，其特征在于，所述终端设备处于非激活状态，所述非激活状态指所述终端设备与网络设备处于断开状态，且所述网络设备和所述终端设备均保留有所述终端设备的上下文信息，所述上下文信息用于建立所述终端设备和所述网络设备之间的连接；
    所述终端设备包括：
    处理单元，用于所述终端设备没有搜索到合适小区驻留时，进入任意小区搜索状态搜索可接受小区和/或所述合适小区，所述可接受小区为所述终端设备可驻留的仅可获取限制业务的小区，所述合适小区为所述终端设备可驻留的可获取正常业务的小区。
  11. 根据权利要求10所述的终端设备，其特征在于，所述处理单元还用于：所述终端设备搜索到所述可接受小区时，驻留到所述可接受小区，并继续搜索所述合适小区。
  12. 根据权利要求10或11所述的终端设备，其特征在于，所述处理单元还用于：
    所述终端设备进入任意小区搜索状态时，启动第一定时器；
    所述第一定时器超时，且未搜索到所述合适小区时，进入空闲状态并删除所述上下文信息；
    所述第一定时器未超时，且搜索到所述合适小区时，停止所述第一定时器，并驻留到所述合适小区。
  13. 根据权利要求12所述的终端设备，其特征在于，所述终端设备还包括：
    收发单元，用于所述处理单元启动第一定时器之前，接收所述网络设备 发送的配置信息，所述配置信息用于为所述终端设备配置所述第一定时器。
  14. 根据权利要求13所述的终端设备，其特征在于，所述配置信息为所述网络设备指示所述终端设备进入所述非激活状态时，为所述终端设备配置的信息。
  15. 根据权利要求10或11所述的终端设备，其特征在于，所述处理单元还用于：
    所述终端设备进入任意小区搜索状态时，进入空闲状态并删除所述上下文信息。
  16. 根据权利要求10或11所述的终端设备，其特征在于，所述处理单元还用于：
    所述终端设备进入任意小区搜索状态时，继续维持所述非激活状态和第二定时器，所述第二定时器包括位置更新定时器。
  17. 根据权利要求16所述的终端设备，其特征在于，所述处理单元还用于：
    所述第二定时器超时后，进入空闲状态并删除所述下文信息。
  18. 根据权利要求12至17中任一项所述的终端设备，其特征在于，所述处理单元还用于：
    所述终端设备进入空闲状态并删除所述下文信息后，继续保持在任意搜索小区状态。
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RU2747206C1 (ru) 2021-04-29
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SG11202006596PA (en) 2020-08-28
TW201937958A (zh) 2019-09-16
CA3088325A1 (en) 2019-08-01
AU2018404498A1 (en) 2020-07-30
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CA3088325C (en) 2022-10-04
BR112020014541A2 (pt) 2020-12-08
JP2021512533A (ja) 2021-05-13
KR102408727B1 (ko) 2022-06-13
JP7105895B2 (ja) 2022-07-25
AU2018404498B2 (en) 2021-06-17
KR20200108053A (ko) 2020-09-16
US11425642B2 (en) 2022-08-23
CN111465069B (zh) 2022-09-27
US20210168708A1 (en) 2021-06-03
EP3720195B1 (en) 2022-07-20
CN110945918A (zh) 2020-03-31
TWI797241B (zh) 2023-04-01
CN111465069A (zh) 2020-07-28
MX2020007884A (es) 2020-09-07
US20200280916A1 (en) 2020-09-03

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