WO2018076266A1 - 一种寻呼方法和设备 - Google Patents

一种寻呼方法和设备 Download PDF

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Publication number
WO2018076266A1
WO2018076266A1 PCT/CN2016/103719 CN2016103719W WO2018076266A1 WO 2018076266 A1 WO2018076266 A1 WO 2018076266A1 CN 2016103719 W CN2016103719 W CN 2016103719W WO 2018076266 A1 WO2018076266 A1 WO 2018076266A1
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WIPO (PCT)
Prior art keywords
paging
terminal device
message
access network
network device
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PCT/CN2016/103719
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English (en)
French (fr)
Inventor
李国荣
张莉莉
贾斯汀 桑爱民
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 PCT/CN2016/103719 priority Critical patent/WO2018076266A1/zh
Priority to US16/345,608 priority patent/US10602480B2/en
Priority to CN201680087685.5A priority patent/CN109644427B/zh
Publication of WO2018076266A1 publication Critical patent/WO2018076266A1/zh

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    • 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
    • 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
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Definitions

  • the present invention relates to the field of communications and, more particularly, to a paging method and apparatus.
  • the network device may instruct the terminal device to enter a light connection state from a Radio Resource Control (“RRC") connection state. After entering the light connection state, the terminal device hides its own state from the core network device. That is to say, the core network device does not know the state of the terminal device.
  • RRC Radio Resource Control
  • the terminal device When downlink data arrives, the terminal device is still in the connected state for processing.
  • the downlink data is sent to an access network device (for example, a base station) that is connected to the terminal device last time.
  • the access network device is triggered to initiate paging to the terminal device to wake up the terminal device, thereby completing downlink data transmission.
  • a terminal device in an idle state monitors a physical downlink control channel (Physical Downlink Control Channel, referred to as "PDCCH") on a specific subframe (ie, a paging frame ("PF"). If the paging message is indicated on the PDCCH channel, the terminal device demodulates the paging channel (Paging Channel, referred to as "PCH") to see if the paging message belongs to itself.
  • the PF is calculated according to a discontinuous reception (“DRX”) cycle.
  • DRX discontinuous reception
  • Each terminal device has its own dedicated Discontinuous Reception (DRX) period and a unique identifier (for example, International Mobile Subscriber Identity (IMSI)).
  • DRX discontinuous reception
  • IMSI International Mobile Subscriber Identity
  • the present application provides a paging method and device for acquiring paging parameters for paging a terminal device through an access network device, and paging the terminal device based on paging parameters, and capable of quickly and effectively waking up the terminal device.
  • a paging method including:
  • the first access network device generates a paging message for the terminal device based on the first paging parameter group, and sends the paging message.
  • the paging method of the embodiment of the present invention can obtain the first paging parameter group for paging the terminal device in the first time period, and can directly directly base the first paging parameter group when the terminal device enters the light connection state.
  • the paging terminal device can effectively page the terminal device and reduce the signaling overhead of the core network paging.
  • the first paging parameter group includes a terminal identifier ID, where the terminal ID is calculated by an international mobile subscriber identity IMSI of the terminal device, The IMSI is for uniquely identifying the terminal device.
  • the first paging parameter group further includes: a first paging ID and/or a dedicated discontinuous receiving DRX cycle,
  • the first paging ID is allocated by the core network device according to the IMSI of the terminal device when the terminal device establishes the RRC connection, and the dedicated DRX cycle is used by the terminal device. determine.
  • the first access network device acquires the first paging parameter group in the first time period
  • the first access network device acquires the first paging parameter group for paging the terminal device in the first time period, including:
  • the first access network device Receiving, by the first access network device, the first S1 interface signaling sent by the core network device, where the first S1 interface signaling carries the first paging parameter group.
  • the first RRC message includes: an RRC connection request RRC Connection Request message or an RRC connection setup complete RRC Connection Setup Complete message;
  • the first S1 interface signaling includes an initial context setup request Initial Context Setup Request message.
  • the signaling overhead can be saved and the implementation is convenient.
  • the first access network device acquires the first paging parameter group in the second time period
  • the first access network device acquires the first paging parameter group for paging the terminal device in the second time period, including:
  • the first access network device sends a paging parameter request message to the core network device in the second time period, where the paging parameter request message carries information used to identify the terminal device;
  • the first access network device receives the second S1 interface signaling sent by the core network device, and the second S1 interface signaling carries the first paging parameter group.
  • the paging parameter request message includes a paging request message
  • the second S1 interface signaling includes a paging message of the S1 interface.
  • the first access network device generates, according to the first paging parameter group, the terminal device Paging message and sending the paging message, including:
  • the first access network device generates a first paging message based on the first paging parameter group
  • the first access network device generates a second paging message, where the second paging message carries the first paging parameter group;
  • the group sends a third paging message to the terminal device, where the second access network device is any access network device except the first access network device in the paging area of the access network.
  • the access network paging area is determined by the first access network device.
  • the first access network device generates, according to the first paging parameter group, the terminal Before the paging message of the device, the method further includes:
  • the first access network device sends a second RRC message to the terminal device, where the second RRC message indicates that the terminal device enters the light connection state.
  • the second RRC message includes: an RRC Connection Reconfiguration message or an RRC Connection Release message.
  • the method further includes:
  • the first access network device If the first access network device acquires the first paging parameter group in the first time period, the first access network device sends a second paging ID to the terminal device, or Calling ID and paging moment indication information,
  • the first access network device If the first access network device does not acquire the first paging parameter group in the first time period, the first access network device sends the second paging ID to the terminal device and the Indication information of the paging moment;
  • the second paging ID is an ID that is allocated by the first access network device when the terminal device is instructed to enter the light connection state, and the indication information of the paging moment is used to indicate the terminal. The moment when the device receives the paging message.
  • the second RRC message carries the second paging ID, or the second RRC message carries the second paging ID and the paging moment indication information.
  • the first base station may initiate paging to the terminal device based on the second paging parameter group without acquiring the first paging parameter group.
  • the first access network device generates, according to the first paging parameter group, the terminal Before the paging message of the device, the method further includes:
  • the first access network device generates a fourth paging message based on the second paging parameter group, where the second paging parameter group includes the second paging ID, or the second paging parameter group Including the second paging ID and the paging moment;
  • the first access network device generates a fifth paging message, where the fifth paging message carries the second paging ID, or the fifth paging message carries the second paging ID And indication information of the paging moment;
  • the first access network device sends the fifth paging message to the second access network device, where the fifth paging message is used to trigger the second access network device to be based on the second homing
  • the call parameter group sends a sixth paging message to the terminal device.
  • the first access network device generates, according to the first paging parameter group, a target Decoding a paging message of the terminal device, and sending the paging message, including:
  • the first access network device and the second access network device do not receive the response message sent by the terminal device based on the fourth paging message or the sixth paging message within a preset duration
  • the first access network device generates a paging message for the terminal device based on the first paging parameter group, and sends the paging message.
  • the user switches to the first paging parameter group to page the terminal.
  • the device can avoid the problem that the paging device cannot receive the paging message because the terminal device enters the idle state, thereby improving the paging efficiency of the base station.
  • a paging device for performing the method of the first aspect and any possible implementation of the first aspect.
  • the apparatus may comprise means for performing the method of the first aspect and any possible implementation of the first aspect.
  • a paging device comprising a memory and a processor for storing a computer program, the processor for calling and running the computer program from a memory, such that the paging device performs the first Aspects and methods in any of the possible implementations of the first aspect.
  • a computer program product comprising: computer program code, when the computer program code is processed by a processing unit, a transceiver unit or a processor, a transceiver of a paging device in the first aspect
  • the paging device is caused to perform the method of the first aspect and any possible implementation of the first aspect.
  • a computer readable storage medium for storing a computer program, the computer program comprising instructions for performing the method of the first aspect and any possible implementation of the first aspect.
  • FIG. 1 is a schematic diagram of a communication system suitable for a paging method in accordance with an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a paging method according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a paging method according to another embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a paging method according to still another embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of a paging device according to an embodiment of the present invention.
  • FIG. 6 is another schematic block diagram of a paging device according to an embodiment of the present invention.
  • a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and a computing device can be a component.
  • One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.
  • data packets eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems
  • 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
  • LTE-A Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • the access network may be a radio access network (Radio Access Network, referred to as "RAN”), and specifically, may be a base station.
  • the base station can be a Global System for Mobile communication ("GSM”) system or a code division multiple access (Code Division) A base station (Base Transceiver Station, abbreviated as "BTS”) in a multiple access (CDMA) system, or a base station (NodeB) in a Wideband Code Division Multiple Access (WCDMA) system. It may also be an Evolutionary Node B (“eNB” or “eNodeB”) in the LTE system, or a Transmission Reception Point (“TRP”) in the future 5G (5th Generation) network.
  • GSM Global System for Mobile communication
  • BTS code division multiple access
  • NodeB base station
  • WCDMA Wideband Code Division Multiple Access
  • eNB Evolutionary Node B
  • TRP Transmission Reception Point
  • the base station device, the small base station device, and the like are not particularly limited in the present invention.
  • the terminal device can communicate with the core network via the RAN.
  • the terminal device can be called an access terminal, a user equipment (User Equipment, referred to as “terminal equipment”), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, Remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • User Equipment User Equipment
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SSIP") phone, a Wireless Local Loop (WLL) station, and a personal digital processing (Personal Digital) Assistant, referred to as "PDA"), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, and a next-generation communication system, such as a terminal device in a 5G network or Terminal equipment in the future evolution of the Public Land Mobile Network (PLMN) network.
  • PLMN Public Land Mobile Network
  • the term "article of manufacture” as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media.
  • the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), an optical disk (eg, a compact disc (“CD”), a digital versatile disc (Digital Versatile Disc) , referred to as "DVD”), etc., smart cards and flash memory devices (for example, Erasable Programmable Read-Only Memory (“EPROM”), cards, sticks or key drivers, etc.).
  • EPROM Erasable Programmable Read-Only Memory
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.
  • the communication system 100 includes the communication system 100 including at least one core network device 110, at least one access network device 120, and at least one terminal device 130.
  • the core network device 110 may include a Mobility Management Entity ("MME"), a Serving Gateway (S-GW), and the like; the access network device may be a base station.
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • the core network can be connected to the base station through the S1 interface.
  • the MME can be connected to the base station through the S1-MME interface
  • the S-GW can be connected to the base station through the S1-U interface.
  • the base station and the base station can be connected through the X2 interface.
  • the terminal device can communicate with the base station via a wireless communication interface.
  • the core network device, the access network device, and the terminal device shown in FIG. 1 are merely exemplary identifiers, and the communication system may further include more core network devices, access network devices, or terminal devices, and the present invention.
  • the number of core network devices, access network devices, or terminal devices is not particularly limited.
  • the following describes the communication between the MME, the base station, and the terminal device. It should be understood that the MME, the base station, and the terminal device shown here are merely illustrative and should not be construed as limiting the present invention. The present invention does not exclude other core network devices, access network devices, or other network devices defined in future protocols. Terminal devices are used to implement the same or similar functions.
  • the terminal device can establish an RRC connection access network with the base station, and the terminal device that establishes the RRC connection is in the connected state, and the terminal device that has released the RRC connection is in the idle state.
  • the terminal device in the connected state can send and receive data with the network device, and there is no signaling connection between the terminal device in the idle state and the network device.
  • the terminal device can use the DRX mode to reduce power consumption in the idle state.
  • a new connection state namely a lightweight connection state
  • the base station finds that the terminal device is inactive within a certain period of time, it can instruct the terminal device to enter the light connection state.
  • the terminal device hides its own state from the MME. That is, the MME does not know the state of the terminal device, and still considers that the terminal device is in the connected state.
  • the MME still processes the terminal device according to the connected state, and sends the downlink data to the base station connected to the terminal device at a time (here, the terminal enters the light connection state or the idle state for convenience of distinction and description).
  • the previously connected base station is recorded as an anchor base station.
  • the anchor base station that receives the downlink data initiates paging of the terminal device in the paging area of the access network to wake up the terminal device and perform data transmission with the network side.
  • the paging area of the access network may be pre-configured by the operator in each base station, or may be determined by the anchor base station according to the characteristics of the displacement of the terminal device.
  • the invention is for access
  • the determination of the paging area of the network is not particularly limited.
  • the idle terminal device can calculate a paging frame (Paging Frame, hereinafter referred to as "PF") and a paging occasion (Paging Occasion, abbreviated as "PO”), and monitor the PDCCH according to the calculated location, thereby obtaining the homing. Call the message.
  • the PF and the PO are both related to the identifier of the terminal device (Identifier, referred to as "ID”, the identifier of the terminal device, hereinafter referred to as "UE_ID”) and the DRX cycle.
  • I_s floor(UE_ID/N) mod N S .
  • T indicates the DRX period of the terminal device. If the upper layer (ie, the non-access stratum (NAS)) allocates the dedicated DRX value of the terminal device (ie, UE Specific DRX), then T is the UE Specific DRX. The value and the minimum value of the default DRX value broadcasted in the system information (that is, the cell is allocated). If the upper layer is not configured with the UE Specific DRX, the default value is applied.
  • N min(T, nB), and the value of nB is 4T. 2T, T, 1/2T, 1/4T, 1/8T, 1/16T, 1/32T.
  • N S max(1, nB/T). mod means modulo, div means quotient and remainder, floor means Round down.
  • PF and PO are closely related to UE_ID, DRX (UE Specific DRX or default DRX) values.
  • the anchor base station does not know the relevant parameters of the terminal device (referred to as a paging parameter for convenience of explanation) when the paging is initiated, if the terminal device still monitors the PDCCH according to the above method, it may be monitored for a long time. Go to the paging message, but always in the light connection state, or enter the idle state by itself. Therefore, the anchor base station cannot effectively page the terminal device, and the terminal device cannot receive the downlink data sent by the network side in time, which seriously affects the user experience.
  • a paging parameter for convenience of explanation
  • the embodiment of the present invention provides a paging method. Before initiating a paging to a terminal device, the anchor base station first obtains paging parameters for the terminal device, and then pages based on paging parameters, thereby enabling fast and effective paging. Wake up the terminal device to complete the data transmission.
  • FIG. 2 to FIG. 4 are schematic flowcharts of a paging method according to an embodiment of the present invention, showing Detailed communication steps or operations of the method, but these steps or operations are merely examples, and embodiments of the present invention may perform other operations or variations of the various operations of FIG. 2, FIG. 3 or FIG. Furthermore, the various steps in FIG. 2, FIG. 3 or FIG. 4 may be performed in a different order than that presented in FIG. 2, FIG. 3 or FIG. 4, respectively, and may not be performed in FIG. 2, FIG. 3 or FIG. All the operations.
  • the anchor base station is referred to as the first base station (ie, an example of the first access network device), and is located in the paging area of the access network.
  • Any one of the base stations other than the first base station is referred to as a second base station (i.e., an example of the second access network device).
  • both the first base station and the second base station are in the access network paging area.
  • the access network paging area is determined or pre-configured by the first base station.
  • the relationship between the first base station and the second base station is not fixed, and when the terminal device is in a certain base station (for example, recorded as time period #A), it is located at a certain base station (for example, referred to as base station #1).
  • the base station #1 is the anchor base station (or the first base station) of the terminal device, and the others are at
  • the base station in the access network paging area configured by the base station #1 may be the second base station; in the next period of the period #B (for example, as the period #C), if the terminal device is displaced to another base station (for example, recorded as base station #2), and in the next period of period #C (for example, recorded as period #D) entering the light connection state, the base station #2 is the anchor base station of the terminal device, Other base stations in the access network paging area configured by the base station #2 may be the second base station.
  • the access network paging areas configured by the base stations may be the same or different, and the present invention is not particularly limited thereto. However, regardless of whether the access network paging areas configured by the base stations are the same or different, they are configured in units of cells, that is, the access network paging area includes at least one cell.
  • the paging method 200 includes:
  • the first base station acquires a first paging parameter group for paging the terminal device in the first time period.
  • the period before the terminal device is transferred from the connected state to the lightweight connected state is recorded as the first time period.
  • the terminal device may first request to establish an RRC connection with the serving base station (eg, the first base station), and after the RRC connection is established, transmit data between the first base station and the core network device.
  • the serving base station eg, the first base station
  • S210 may specifically include:
  • the first eNB sends a first RRC message sent by the terminal device, where the first RRC message carries the first paging parameter group;
  • the first base station receives the first S1 interface signaling sent by the MME in the first time period, where the first S1 interface signaling carries the first paging parameter group.
  • the first set of paging parameters may include a terminal ID.
  • the terminal ID may correspond to the UE_ID described above, that is, the value obtained by the IMSI mod 1024, and the terminal device may calculate and obtain it according to its own IMSI, and the MME may also calculate according to the IMSI sent by the terminal device.
  • the first paging parameter group may further include a first paging identifier.
  • the first paging identifier can be understood as an identifier of an object for indicating paging during the paging process, and the first paging identifier may be sent by the MME according to the terminal device during the first time that the terminal device is attached to the network. The identity of the IMSI assigned to it. The terminal device may save the identifier to facilitate carrying the identifier during the subsequent RRC connection establishment process.
  • the first paging identifier may be a System Architecture Evolution (“SAE”) Temporary Mobile Station Identifier (“S-TMSI”).
  • SAE System Architecture Evolution
  • S-TMSI Temporary Mobile Station Identifier
  • the first paging identifier may be an S-TMSI or an IMSI, and may even be other identifiers for uniquely identifying the terminal device, which is not specifically limited in the present invention.
  • the embodiment of the present invention only distinguishes and distinguishes the paging identifier (for example, the first paging identifier and the second paging identifier mentioned later) and the terminal identifier, but this should not be
  • the invention constitutes any limitation, and the invention does not exclude the possibility of using other naming to achieve the same or similar functionality as the paging identity and terminal identity.
  • the first paging parameter group may be carried in a first RRC message, where the first RRC message may include: an RRC Connection Request message or an RRC connection setup complete message (RRC Connection Setup) Complete) message.
  • the first base station receives the first RRC message sent by the terminal device in the first time period, where the first RRC message carries the first paging parameter group, including:
  • the first base station receives an RRC Connection Setup Complete message sent by the terminal device in the first time period, where the first paging parameter group is carried in the RRC Connection Setup Complete message.
  • the first paging parameter group may be carried in the first S1 interface signaling, where the first S1 interface signaling may include: an initial context setup request Initial Context Setup Request message.
  • the first base station receives the first S1 interface signaling sent by the MME in the first time period, where the first S1 interface signaling carries the first paging parameter group, including:
  • the first base station acquires the first paging parameter group from the terminal device when the terminal device requests the RRC connection, or obtains the first paging parameter group from the MME after the terminal device establishes the RRC connection.
  • the first paging parameter group may be carried in an existing message specified in an existing protocol (for example, the specific message listed above, or other existing message), that is, added to the existing message for use.
  • the information indicating the first paging parameter group may also be carried in the newly added message, that is, a new message is added to the existing protocol for carrying the first paging parameter group, which is not specifically limited in the present invention.
  • the method of carrying the first paging parameter group in the existing message specified in the existing protocol is a relatively easy to implement method, and the signaling overhead can be reduced.
  • the first paging parameter group may further include a dedicated DRX cycle.
  • the dedicated DRX cycle may correspond to the UE Specific DRX value described above.
  • the UE Specific DRX value may be sent to the MME together with the IMSI or separately when the terminal device first attaches to the network. Therefore, the first base station can also be obtained from the terminal device or the MME in the first time period.
  • the specific process has been described in detail above, and is not described here for brevity.
  • the paging terminal device based on the UE specific DRX value may not obtain the UE Specific DRX value, but may be based on the cell default.
  • the DRX value paging terminal device is not particularly limited in the present invention.
  • the first base station generates a paging message for the terminal device based on the first paging parameter group, and sends the paging message.
  • the first base station may generate a paging message based on the first paging parameter group, so as to page the terminal device in the paging area of the access network. .
  • the first base station may directly page the terminal device, or may page the terminal device by other base stations (for example, the second base station) to prevent the terminal device from leaving the first base due to the displacement.
  • the coverage of the station the possibility of receiving no paging messages.
  • S220 may specifically include:
  • the first base station generates a first paging message based on the first paging parameter group, and sends the first paging message to the terminal device.
  • the first base station generates a second paging message based on the first paging parameter group, and sends a second paging message to the second base station, where the second paging message carries the first paging parameter group, where The second paging message is used to trigger the second base station to send the third paging message to the terminal device based on the first paging parameter group, where the second base station is in the access network paging area except the first a base station other than a base station, the access network paging area being determined by the first base station;
  • the second base station sends the third paging message to the terminal device based on the first paging parameter group.
  • both the first base station and the second base station may send a paging message to the terminal device based on the first paging parameter group.
  • the first base station pages the terminal device within the access network paging area (ie, the range of one or more cells).
  • the first paging parameter group carries a dedicated DRX cycle
  • the dedicated DRX cycle is smaller than a DRX cycle configured by default by the first base station or the second base station
  • the paging message may be sent to the terminal device based on the terminal ID and the dedicated DRX period carried in the first paging parameter group.
  • the first paging message and the third paging message may be the same paging message. That is, PF and PO are the same.
  • the dedicated DRX cycle is greater than the default configuration of the first base station or the second base station.
  • the first base station can calculate the PF and the PO according to the size relationship between the default configuration of the DRX cycle and the dedicated DRX, and the second base station can also be based on the size relationship between the default configured DRX cycle and the dedicated DRX.
  • the PF and the PO are calculated by selecting a smaller DRX period. It can be understood that the cells corresponding to the first base station and the second base station are different, and the DRX cycle of the default configuration may also be different.
  • the PF and the PO that the first base station sends the first paging message and the PF and the PO that the second base station sends the third paging message may be different, that is, may also be understood as the first paging message and the first The three paging messages are different paging messages.
  • the paging method 200 further includes:
  • the first base station sends a second RRC message to the terminal device, where the second RRC message indicates that the terminal device enters a light connection state.
  • the first base station serves as the serving base station of the terminal device, and can learn the activeness of the terminal device. If the first base station finds that the terminal device does not perform data transmission for a long period of time, or is inactive, it may instruct the terminal device to enter the light connection state without notifying the MME of the status of the terminal device. .
  • the second RRC message may be an RRC Connection Reconfiguration message or an RRC Connection Release message.
  • the terminal device can enter the idle state after entering the light connection state.
  • the terminal device sends a response message based on the first paging message or the third paging message.
  • the terminal device although both the first base station and the second base station send the first paging message to the terminal device in S220, the terminal device may only reside in one cell at a certain moment (for convenience) It is to be noted that the base station to which the cell belongs is referred to as the target base station. It can be understood that the target base station may be the first base station or the second base station, which is not specifically limited in the present invention, that is, the terminal device may only Receiving a first paging message (referred to as a target paging message for convenience of distinction and description, it can be understood that the target paging message is a first paging message or a third paging message), and sends the The target base station of the target paging message sends a response message.
  • a target paging message referred to as a target paging message for convenience of distinction and description, it can be understood that the target paging message is a first paging message or a third paging message
  • the response message sent by the terminal device to the target base station may be an RRC Connection Reestablishment Request message, an RRC Connection Resume Request message, or an RRC Connection Setup Request. (RRC Connection Request) message.
  • RRC Connection Request RRC Connection Request
  • the terminal device initiates an RRC connection re-establishment or restart or connection process, and after establishing the RRC connection, the first base station sends the downlink data sent by the MME to the terminal device. .
  • the terminal device initiates a process of RRC connection re-establishment or restart or connection establishment.
  • the second base station acquires the context information of the terminal device from the first base station, and the first base station forwards the downlink data to be sent to the terminal device to the second base station, where the second base station The downlink data is sent to the terminal device.
  • the second base station sends a path switch notification to the MME to notify the S-GW to modify the downlink path to the second base station. That is, if the terminal device enters the light connection state again, the second base station becomes the end The anchor base station of the end device.
  • the figure only shows a situation in which the terminal device sends a response message to the first base station based on the first paging message, but this should not constitute any limitation to the present invention, and the terminal device may also be based on the third paging.
  • the message sends a response message to the second base station.
  • the terminal device transmits a response message based on the first paging message or the third paging message (or the target paging message), and the action performed by the target base station after receiving the response message is similar to the prior art.
  • the action performed by the target base station after receiving the response message is similar to the prior art.
  • I will not repeat them here.
  • the paging method of the embodiment of the present invention can obtain the first paging parameter group for paging the terminal device in the first time period, and can directly directly base the first paging parameter group when the terminal device enters the light connection state.
  • the paging terminal device can effectively page the terminal device and reduce the signaling overhead of the core network paging.
  • the first paging parameter group is carried in the existing message in the existing protocol, which can save signaling overhead and is convenient to implement.
  • the anchor base station (for example, the first base station in the embodiment of the present invention) may assign a new paging ID to the terminal device when indicating that the terminal device enters the light connection state (for the purpose of distinguishing and explaining) , recorded as the second paging ID) and/or paging moment.
  • the anchor base station can page the terminal device based on the second paging ID and/or the paging moment.
  • the second paging ID and/or the paging moment are referred to as the second paging parameter group.
  • the second paging parameter group may include only the second paging ID, or may include only the paging moment, and may also include the second paging ID and the paging moment.
  • the paging moment can be understood as the moment when the terminal device receives the paging message.
  • the terminal device may enter the idle state due to the failure of the radio link, random access failure, or re-entry into the service area.
  • the terminal device entering the idle state monitors the PDCCH based on the first paging parameter group, and at this time, the anchor base station does not know that the terminal device enters the light connection state, and still pages the terminal device based on the second paging parameter group, and therefore, the terminal device
  • the paging message sent by the anchor base station based on the second paging parameter may not be received, that is, the paging fails.
  • the present invention provides a paging method.
  • the anchor base station pages a terminal device based on the second paging parameter group. If the response message of the terminal device is not received within a preset duration, the first search is based on the first search.
  • the calling parameter group finds the calling terminal device, so that the terminal device can be quickly and effectively paged when the terminal device enters the idle state.
  • FIG. 3 is a schematic flowchart of a paging method 300 according to another embodiment of the present invention. As shown in FIG. 3, the paging method 300 includes:
  • the first base station acquires a first paging parameter group for paging the terminal device in the first time period.
  • the first base station sends a second RRC message to the terminal device, where the second RRC message indicates that the terminal device enters a light connection state.
  • S310 and S320 are similar to the specific processes of S210 and S230 in the method 200, and are not described herein for brevity.
  • the first base station sends a second paging ID to the terminal device, or the first base station sends the second paging ID and the paging moment indication information to the terminal device.
  • the terminal device may allocate a new paging identifier to the terminal device (to be distinguished from the first paging ID in the above, and record the second paging ID), Alternatively, the first base station may also configure a new paging moment for the terminal device, or simultaneously allocate a second paging ID and a paging moment to the terminal device.
  • the first base station may determine, according to whether the first paging parameter group is acquired in the first time period, information sent to the terminal device. If the first base station acquires the first paging parameter group in the first time period, the first base station may be based on the terminal ID in the first paging parameter group, and the dedicated DRX cycle (or, in the first paging) If the parameter group does not include the dedicated DRX cycle, the PF and the PO may be calculated for the default DRX cycle of the cell.
  • the first base station may only send the second paging ID to the terminal device; if the first base station If the first paging parameter group is not obtained in the first time period, the first base station may configure a paging moment for the terminal device, and send indication information of the second paging ID and the paging moment to the terminal device.
  • the indication information of the paging moment is used to indicate the paging moment.
  • the indication information of the paging moment may include: a new DRX cycle (ie, a DRX cycle allocated by the first base station when instructing the terminal device to enter a light connection state, it may be understood that the new DRX cycle may be the same as the dedicated DRX cycle. Or a different period), a subframe that receives the paging message, and a time (ie, can be understood as the PF and PO described above).
  • the terminal device can determine the paging moment based on the indication information of the paging moment, and receive the paging message based on the paging moment.
  • the second paging ID and the paging moment indication information may be carried in the second RRC message in S320 to save signaling overhead.
  • S330 may specifically include:
  • the first base station sends a second RRC message to the terminal device, where the second RRC message can be Carrying the second paging ID, or the second RRC message may carry the indication information of the second paging ID and the paging moment.
  • the first base station pages the terminal device based on the second paging parameter group.
  • the first base station may generate a paging message for the terminal device based on the second paging parameter group, so as to be in the paging area of the access network. Paging the terminal device.
  • the terminal device may receive the paging message according to the original PF and the PO, where the paging message carries the second paging. ID.
  • the terminal device may receive the paging message according to the second paging ID sent by the first base station to the terminal device in S330. If the paging ID carried in the paging message received by the terminal device (for example, recorded as paging ID #A) and the second paging ID sent by the first base station to the terminal device in S330 (for example, If the paging ID#B) is the same, the paging message is considered to be used for paging the terminal device. If it is different, the paging message is considered not to page the terminal device.
  • the terminal device may receive the homing at the indicated new paging moment based on the indication information of the paging moment. Call the message.
  • the method for the terminal device to receive the paging message based on the second paging ID is the same as the foregoing method, and details are not described herein again.
  • S340 may specifically include:
  • the first base station generates a fourth paging message based on the second paging parameter group, and sends a fourth paging message to the terminal device.
  • the first base station generates a fifth paging message, where the fifth paging message carries the second paging ID, or the fifth paging message carries the second paging ID and the paging moment. And sending a fifth paging message to the second base station, where the fifth paging message is used to trigger the second base station to send the sixth paging message to the terminal device based on the second paging parameter group;
  • the second base station sends the sixth paging message to the terminal device based on the second paging parameter group.
  • both the first base station and the second base station may send a paging message to the terminal device based on the second paging parameter group.
  • the first base station pages the terminal device within the access network paging area (ie, the range of one or more cells).
  • the first base station and the second base station may both indicate the paging based on the indication information of the paging moment.
  • the paging message is sent to the terminal device based on the second paging ID.
  • the fourth paging message and the sixth paging message may be the same paging message, that is, the paging moments are the same.
  • the first base station and the second base station may calculate the PF and the PO respectively according to the default DRX period configured by itself, and calculate the obtained PF and The PO sends a paging message to the terminal device respectively.
  • the PF and the PO that the first base station sends the fourth paging message are different from the PF and the PO that the second base station sends the sixth paging message, that is, it can also be understood.
  • the fourth paging message and the sixth paging message are different paging messages.
  • a paging message (for example, a fourth paging message or a sixth paging message) sent based on the second paging parameter group may be received.
  • the The terminal device may directly execute S360 to send a response message to the first base station or the second base station based on the received paging message.
  • the first base station pages the terminal device based on the first paging parameter group.
  • the terminal device may enter an idle state after entering the light connection state. If the first base station and the second base station do not receive the response message of the terminal device based on the third paging message within a preset duration, the terminal device may be considered to be in an idle state, and may be based on the first paging parameter group. Paging the terminal device.
  • the first base station and the second base station may respectively set a timer, and start the timer when the third paging message is sent by setting a duration threshold, if the preset duration threshold is If the response message of the terminal device is not received, the terminal device may be considered to enter an idle state, and the terminal device is paged based on the first paging parameter group (ie, the first paging message is sent).
  • the S350 may specifically include:
  • the first base station and the second base station do not receive the response message of the terminal device based on the fourth paging message or the sixth paging message within a preset duration, the first base station is based on the first paging parameter group Paging the terminal device.
  • S360 The terminal device sends a response message.
  • the figure only shows a situation in which the terminal device sends a response message based on a paging message (for example, a first paging message or a fourth self-paging message) sent by the first base station, but this should not be dealt with.
  • a paging message for example, a first paging message or a fourth self-paging message
  • the present invention constitutes any limitation, and the terminal device may also be based on the paging cancellation sent by the second base station.
  • the information (eg, the third paging message or the sixth paging message) sends a response message to the second base station.
  • the terminal device sends a response message based on the first paging message, and the action performed by the target base station after receiving the response message is similar to the prior art, and is not described herein again for brevity.
  • the user switches to the first paging parameter group to page the terminal.
  • the device can avoid the problem that the paging device cannot receive the paging message because the terminal device enters the idle state, thereby improving the paging efficiency of the base station.
  • the paging method 400 includes:
  • the first base station sends a second RRC message to the terminal device, where the second RRC message indicates that the terminal device enters a light connection state.
  • the specific process of S410 is similar to the specific process of S320 in the method 300, and is not described here for brevity.
  • the first base station acquires a first paging parameter group for paging the terminal device in the second time period.
  • the first base station may acquire the first paging parameter group from the MME after the terminal device enters the light connection state or the idle state.
  • the paging parameter request message may be directly sent to the MME to request to acquire the first paging parameter group of the terminal device.
  • the MME may send the second S1 interface signaling to the first base station according to the paging parameter request message, where the second S1 interface signaling carries the first paging parameter group.
  • the paging parameter request message may be a paging request message
  • the second S1 interface signaling may be an S1 paging message
  • S420 may specifically include:
  • the first base station sends a paging request message to the MME, where the paging request message carries information for identifying the terminal device;
  • the first base station receives the S1 paging message sent by the MME based on the paging request message, where the S1 paging message carries the first paging parameter group.
  • the terminal device and the MME may allocate the terminal ID of the S1-MME interface to the terminal device (for convenience of distinction and description, for example, it may be recorded as the terminal ID-S1 M , It is understood that the terminal ID is different from the terminal ID described above, that is, it can be understood as the terminal ID of the control plane.
  • the base station can also allocate the terminal ID of the S1-U interface to the terminal device through the tunnel established between the MME and the S-GW (for the purpose of distinguishing and explaining, for example, it can be recorded as ID-S1 U , it can be understood that the terminal ID also different from the terminal ID and the terminal ID-S1 M described above), i.e., the terminal ID may be understood as user plane.
  • the base station it stores the correspondence between the identifiers of the same terminal device on different interfaces.
  • the information about the terminal device can be sent to the MME (for example, the terminal ID of the control plane described herein, or the first paging ID described above, is such that the MME initiates paging of the terminal device based on the information.
  • the first base station generates a paging message for the terminal device based on the first paging parameter group, and sends the paging message.
  • the specific process of S430 is similar to the specific process of S220 in the method 200, and is not described here for brevity.
  • the MME sends the paging parameter of the terminal device (that is, the first paging parameter group) to the first base station in the S1 paging message, and the first base station may be based on the first A paging parameter group pages the terminal device.
  • the paging parameter of the terminal device that is, the first paging parameter group
  • the paging method 400 further includes:
  • the first base station sends a second paging ID to the terminal device, or the first base station sends the second paging ID and the paging moment indication information to the terminal device.
  • the first base station pages the terminal device based on the second paging parameter group.
  • the terminal device sends a response message.
  • the terminal device may enter an idle state after entering the light connection state. If the terminal device receives the paging message sent by the first base station or the second base station based on the second paging parameter group, directly executing S460; if the first base station and the second base station do not receive the terminal device within a preset duration Based on the response message of the third paging message, the terminal device may be considered to be in an idle state, and S430 may be performed, that is, the terminal device is paged based on the first paging parameter group.
  • S440 and S450 are similar to the specific processes of S330 and S340 in the method 300, and are not described herein for brevity.
  • the figure only shows the paging of the terminal device based on the first base station for ease of understanding.
  • the message is sent to the response message, but this should not constitute any limitation to the present invention, and the terminal device may also send a response message to the second base station based on the paging message sent by the second base station.
  • the user switches to the first paging parameter group to page the terminal.
  • the device can avoid the problem that the paging device cannot receive the paging message because the terminal device enters the idle state, thereby improving the paging efficiency of the base station.
  • FIG. 5 is a schematic block diagram of a paging device 500 in accordance with an embodiment of the present invention.
  • the paging device 500 includes a processing unit 510 and a transceiver unit 520.
  • the paging device 500 can correspond to (for example, can be configured or itself) the first base station described in the foregoing method 200, 300 or 400, and each module or unit in the paging device 500 is used separately
  • the operations or processes performed by the first base station in the above method 200, 300 or 400 are performed.
  • detailed description thereof will be omitted.
  • FIG. 6 is another schematic block diagram of a paging device 600 in accordance with an embodiment of the present invention.
  • the paging device 600 includes a transceiver 610, a processor 620, a memory 630, and a bus system 640.
  • the transceiver 640, the processor 620 and the memory 630 are connected by a bus system 640 for storing instructions for executing the instructions stored by the memory 630 to control the transceiver 610 to send and receive signals.
  • the memory 630 may be configured in the processor 620 or may be independent of the processor 620.
  • the paging device 600 may correspond to (for example, may be configured or be itself) the first base station described in the foregoing method 200, 300 or 400, and each module or unit in the paging device 600 respectively uses The operations or processes performed by the first base station in the above method 200, 300 or 400 are performed.
  • each module or unit in the paging device 600 respectively uses The operations or processes performed by the first base station in the above method 200, 300 or 400 are performed.
  • detailed description thereof will be omitted.
  • the processor in the embodiment of the present invention may be an integrated circuit chip with signal processing capability.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a central processing unit ("CPU"), and may be other general-purpose processors, digital signal processors ("DSP"), and application-specific integrated circuits ( Application Specific Integrated Circuit (“ASIC”), Field Programmable Gate Array (“FPGA”) or other programmable Program logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • Program logic devices discrete gates or transistor logic devices, discrete hardware components.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software in the decoding processor.
  • the software can be located in a random storage medium, such as a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register, 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 memory in embodiments of the invention may be a volatile memory or a non-volatile memory, or may include both volatile and nonvolatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory (ROM), a programmable read only memory (PROM), or an erasable programmable read only memory (Erasable PROM). , referred to as "EPROM”), electrically erasable programmable read only memory (“EEPROM”) or flash memory.
  • the volatile memory may be a Random Access Memory (“RAM”), which is used as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory.
  • SDRAM Synchronous DRAM
  • Double Data Rate SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced SDRAM
  • DR RAM direct memory bus random access memory
  • bus system may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus.
  • bus systems may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus.
  • various buses are labeled as bus systems in the figure.
  • each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the steps of the method for data transmission disclosed in connection with the embodiments of the present invention may be directly implemented as hardware processor execution completion, or performed by hardware and software combination in the processor.
  • the software can be located in random access memory, flash memory, read only memory, Programming read-only memory or electrically erasable programmable memory, registers, etc. are well-established in the storage medium of the art.
  • 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. To avoid repetition, it will not be described in detail here.
  • Embodiments of the present invention also provide a computer readable storage medium storing one or more programs, the one or more programs including instructions that are portable electronic devices that include a plurality of applications When executed, the portable electronic device can be caused to perform the method of the embodiment shown in FIG. 2, FIG. 3 or FIG.
  • Embodiments of the present invention also provide a computer readable storage medium storing one or more programs, the one or more programs including instructions that are portable electronic devices that include a plurality of applications When executed, the portable electronic device can be caused to perform the method of the embodiment shown in FIG. 2, FIG. 3 or FIG.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • 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 unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, may be located in one place. Or it can be distributed to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each 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 functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明公开了一种寻呼方法和装置，能够获取用于寻呼终端设备的寻呼参数，基于寻呼参数寻呼终端设备，从而快速有效地寻呼终端设备。该方法包括：第一接入网设备在第一时段获取用于寻呼终端设备的第一寻呼参数组，该第一时段为该终端设备由连接态转入轻型连接态之前的时段，该第一接入网设备为该终端设备进入该轻型连接态或空闲态之前上一次连接的接入网设备；或者，第一接入网设备在第二时段获取用于寻呼终端设备的第一寻呼参数组，该终端设备在该第二时段处于该轻型连接态或该空闲态；该第一接入网设备基于该第一寻呼参数组生成针对该终端设备的寻呼消息，并发送该寻呼消息。

Description

一种寻呼方法和设备 技术领域
本发明涉及通信领域，并且更具体地，涉及一种寻呼方法和设备。
背景技术
在第三代合作伙伴(3rd Generation Partnership Project，简称“3GPP”)第14版(Release 14)中，提出了轻型连接(Light Connection)的概念。网络设备可以指示终端设备从无线资源控制(Radio Resource Control，简称“RRC”)连接态进入轻型连接态。终端设备在进入轻型连接状态之后，对核心网设备隐藏自己的状态，也就是说，核心网设备不知道终端设备的状态，当有下行数据到达时，仍然按照终端设备处于连接态来处理，将下行数据发送至终端设备上一次连接着的接入网设备(例如，基站)。当下行数据到达接入网设备时，就会触发接入网设备发起对终端设备的寻呼，以唤醒终端设备，从而完成下行数据的传输。
当前技术中，处于空闲(idle)态的终端设备在特定的子帧(即，寻呼帧(Paging Frame，简称“PF”))上监听物理下行控制信道(Physical Downlink Control Channel，简称“PDCCH”)，如果在PDCCH信道指示有寻呼消息，终端设备才去解调寻呼信道(Paging Channel，简称“PCH”)去看寻呼消息是否属于自己。其中，PF是根据非连续接收(Discontinuous Reception，简称“DRX”)周期计算得到的。而每个终端设备都有自己专用的非连续接收(Discontinuous Reception，简称“DRX”)周期以及唯一的标识(例如，国际移动用户标识(International Mobile Subscriber Identity，简称“IMSI”))。
因此，接入网设备在接收到核心网设备发送的下行数据时，如何有效地寻呼终端设备成为亟需解决的技术问题。
发明内容
本申请提供一种寻呼方法和设备，以通过接入网设备获取用于寻呼终端设备的寻呼参数，基于寻呼参数寻呼终端设备，能够快速有效地唤醒终端设备。
第一方面，提供了一种寻呼方法，包括：
第一接入网设备在第一时段获取用于寻呼终端设备的第一寻呼参数组，所述第一时段为所述终端设备由连接态转入轻型连接态之前的时段，所述第一接入网设备为所述终端设备进入所述轻型连接态或空闲态之前上一次连接的接入网设备；或者，
第一接入网设备在第二时段获取用于寻呼终端设备的第一寻呼参数组，所述终端设备在所述第二时段处于所述轻型连接态或所述空闲态；
所述第一接入网设备基于所述第一寻呼参数组，生成针对所述终端设备的寻呼消息，并发送所述寻呼消息。
因此，本发明实施例的寻呼方法，通过在第一时段获取用于寻呼终端设备的第一寻呼参数组，在终端设备进入轻型连接态时，可以直接基于该第一寻呼参数组寻呼终端设备，能够有效地寻呼该终端设备，同时，减少了核心网寻呼的信令开销。
结合第一方面，在第一方面的第一种可能的实现方式中，所述第一寻呼参数组包括终端标识ID，所述终端ID由所述终端设备的国际移动用户标识IMSI计算得到，所述IMSI用于唯一地标识所述终端设备。
可选地，所述第一寻呼参数组还包括:第一寻呼ID和/或专用非连续接收DRX周期，
其中，所述第一寻呼ID是由核心网设备在所述终端设备建立所述RRC连接时根据所述终端设备的IMSI为所述终端设备分配的，所述专用DRX周期由所述终端设备确定。
结合第一方面或其上述可能的实现方式，在第一方面的第二种可能的实现方式中，在所述第一接入网设备在所述第一时段获取所述第一寻呼参数组的情况下，所述第一接入网设备在第一时段获取用于寻呼终端设备的第一寻呼参数组，包括：
所述第一接入网设备在所述第一时段接收所述终端设备发送的第一无线资源控制RRC消息，所述第一RRC消息中携带所述第一寻呼参数组；或者，
所述第一接入网设备在所述第一时段接收所述核心网设备发送的第一S1接口信令，所述第一S1接口信令中携带所述第一寻呼参数组。
可选地，所述第一RRC消息包括：RRC连接请求RRC Connection Request消息或者RRC连接建立完成RRC Connection Setup Complete消息；
所述第一S1接口信令包括初始上下文建立请求Initial Context Setup Request消息。
因此，通过将第一寻呼参数组携带在现有协议中已有的消息中，可以节省信令开销，实现方便。
结合第一方面或其上述可能的实现方式，在第一方面的第三种可能的实现方式中，在所述第一接入网设备在所述第二时段获取所述第一寻呼参数组的情况下，所述第一接入网设备在第二时段获取用于寻呼终端设备的第一寻呼参数组，包括：
所述第一接入网设备在所述第二时段向所述核心网设备发送寻呼参数请求消息，所述寻呼参数请求消息中携带用于标识所述终端设备的信息；
所述第一接入网设备接收所述核心网设备发送的第二S1接口信令，所述第二S1接口信令中携带所述第一寻呼参数组。
可选地，所述寻呼参数请求消息包括寻呼请求消息，所述第二S1接口信令包括S1接口的寻呼消息。
结合第一方面或其上述可能的实现方式，在第一方面的第四种可能的实现方式中，所述第一接入网设备基于所述第一寻呼参数组，生成针对所述终端设备的寻呼消息，并发送所述寻呼消息，包括：
所述第一接入网设备基于所述第一寻呼参数组生成第一寻呼消息；
所述第一接入网设备向所述终端设备发送所述第一寻呼消息；
所述第一接入网设备生成第二寻呼消息，所述第二寻呼消息中携带所述第一寻呼参数组；
所述第一接入网设备向第二接入网设备发送所述第二寻呼消息，所述第二寻呼消息用于触发所述第二接入网设备基于所述第一寻呼参数组向所述终端设备发送第三寻呼消息，其中，所述第二接入网设备为处于接入网寻呼区域中除所述第一接入网设备之外的任意一个接入网设备，所述接入网寻呼区域由所述第一接入网设备确定。
结合第一方面或其上述可能的实现方式，在第一方面的第五种可能的实现方式中，在所述第一接入网设备基于所述第一寻呼参数组，生成针对所述终端设备的寻呼消息之前，所述方法还包括：
所述第一接入网设备向所述终端设备发送第二RRC消息，所述第二RRC消息指示所述终端设备进入所述轻型连接态。
可选地，所述第二RRC消息包括：RRC连接重配置(RRC Connection Reconfiguration)消息或RRC连接释放(RRC Connection Release)消息。
结合第一方面或其上述可能的实现方式，在第一方面的第六种可能的实现方式中，所述方法还包括：
若所述第一接入网设备在所述第一时段获取所述第一寻呼参数组，所述第一接入网设备向所述终端设备发送第二寻呼ID，或者，第二寻呼ID和寻呼时刻的指示信息，
若所述第一接入网设备未在所述第一时段获取所述第一寻呼参数组，所述第一接入网设备向所述终端设备发送所述第二寻呼ID和所述寻呼时刻的指示信息；
其中，所述第二寻呼ID是由所述第一接入网设备在指示所述终端设备进入所述轻型连接态时分配的ID，所述寻呼时刻的指示信息用于指示所述终端设备接收寻呼消息的时刻。
可选地，所述第二RRC消息中携带所述第二寻呼ID，或者，所述第二RRC消息中携带所述第二寻呼ID和所述寻呼时刻的指示信息。
因此，第一基站可以在未获取第一寻呼参数组的情况下，基于第二寻呼参数组发起对终端设备的寻呼。
结合第一方面或其上述可能的实现方式，在第一方面的第七种可能的实现方式中，在所述第一接入网设备基于所述第一寻呼参数组，生成针对所述终端设备的寻呼消息之前，所述方法还包括：
所述第一接入网设备基于第二寻呼参数组，生成第四寻呼消息，所述第二寻呼参数组包括所述第二寻呼ID，或者，所述第二寻呼参数组包括所述第二寻呼ID和所述寻呼时刻；
所述第一接入网设备向所述终端设备发送所述第四寻呼消息；
所述第一接入网设备生成第五寻呼消息，所述第五寻呼消息中携带所述第二寻呼ID，或者，所述第五寻呼消息中携带所述第二寻呼ID和所述寻呼时刻的指示信息；
所述第一接入网设备向所述第二接入网设备发送所述第五寻呼消息，所述第五寻呼消息用于触发所述第二接入网设备基于所述第二寻呼参数组向所述终端设备发送第六寻呼消息。
进一步地，所述第一接入网设备基于所述第一寻呼参数组，生成针对所 述终端设备的寻呼消息，并发送所述寻呼消息，包括：
若所述第一接入网设备和所述第二接入网设备在预设时长内未接收到所述终端设备基于所述第四寻呼消息或所述第六寻呼消息发送的响应消息，所述第一接入网设备基于所述第一寻呼参数组生成针对所述终端设备的寻呼消息，并发送所述寻呼消息。
因此，本发明实施例的寻呼方法，通过预先设置时长阈值，在该预设的时长阈值内若未接收到该终端设备的响应消息，则自行切换到第一寻呼参数组寻呼该终端设备，从而可以避免因终端设备进入空闲态无法接收到寻呼消息的问题，提高了基站的寻呼效率。
第二方面，提供了一种寻呼设备，用于执行第一方面及第一方面的任意可能的实现方式中的方法。具体地，该装置可以包括用于执行第一方面及第一方面的任意可能的实现方式中的方法的单元。
第三方面，提供了一种寻呼设备，包括存储器和处理器，该存储器用于存储计算机程序，该处理器用于从存储器中调用并运行该计算机程序，使得所述寻呼设备执行上述第一方面及第一方面的任意可能的实现方式中的方法。
第四方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被第一方面中的寻呼设备的处理单元、收发单元或处理器、收发器运行时，使得所述寻呼设备执行第一方面及第一方面的任意可能的实现方式中的方法。
第五方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序包括用于执行第一方面及第一方面的任意可能的实现方式中的方法的指令。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是适用于本发明实施例的寻呼方法的通信***的示意图。
图2是根据本发明一实施例的寻呼方法的示意性流程图。
图3是根据本发明另一实施例的寻呼方法的示意性流程图。
图4是根据本发明又一实施例的寻呼方法的示意性流程图。
图5是根据本发明实施例的寻呼设备的示意性框图。
图6是根据本发明实施例的寻呼设备的另一示意性框图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本说明书中使用的术语“部件”、“模块”、“***”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中，部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地***、分布式***和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它***交互的互联网)的信号通过本地和/或远程进程来通信。
应理解，本发明的技术方案可以应用于各种通信***，例如：全球移动通讯(Global System of Mobile communication，简称“GSM”)***、码分多址(Code Division Multiple Access，简称“CDMA”)***、宽带码分多址(Wideband Code Division Multiple Access，简称“WCDMA”)***、通用分组无线业务(General Packet Radio Service，简称“GPRS”)、长期演进(Long Term Evolution，简称“LTE”)***、先进的长期演进(Advanced long term evolution，简称“LTE-A”)***、通用移动通信***(Universal Mobile Telecommunication System，简称“UMTS”)或下一代通信***等。
本发明实施例中，接入网可以为无线接入网(Radio Access Network，简称“RAN”)，具体的，可以为基站。基站可以是全球移动通信(Global System for Mobile communication，简称“GSM”)***或码分多址(Code Division  Multiple Access，简称“CDMA”)***中的基站(Base Transceiver Station，简称“BTS”)，也可以是宽带码分多址(Wideband Code Division Multiple Access，简称“WCDMA”)***中的基站(NodeB)，还可以是LTE***中的演进型基站(Evolutional Node B，简称“eNB”或“eNodeB”)，或者是未来5G(5th Generation)网络中的传输点(Transmission Reception Point，简称“TRP”)、基站设备、小基站设备等，本发明对此并未特别限定。
终端设备可以经RAN与核心网进行通信，该终端设备可称为接入终端、用户设备(User Equipment，简称为“终端设备”)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称为“SIP”)电话、无线本地环路(Wireless Local Loop，简称为“WLL”)站、个人数字处理(Personal Digital Assistant，简称为“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、可穿戴设备以及下一代通信***，例如，5G网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，简称“PLMN”)网络中的终端设备等。
此外，本发明的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(Compact Disc，简称“CD”)、数字通用盘(Digital Versatile Disc，简称“DVD”)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(Erasable Programmable Read-Only Memory，简称“EPROM”)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
应理解，在本发明实施例中，编号“第一”、“第二”、“第三”、“第四”、“第五”和“第六”仅为用于区分不同的对象，例如，为了区分不同的时段、不同的接入网设备(例如，基站)、不同的寻呼消息等，而不应对本发明构成任何限定。
图1是适用于本发明实施例的寻呼方法的通信***100的示意图。如图 1所示，该通信***100包括：该通信***100包括至少一个核心网设备110、至少一个接入网设备120和至少一个终端设备130。其中，核心网设备110可以包括移动性管理实体(Mobility Management Entity，简称“MME”)、服务网关(Serving Gateway，简称“S-GW”)等；接入网设备可以为基站。核心网是与基站之间可以通过S1接口通信连接，具体地，MME可以通过S1-MME接口与基站连接，S-GW可以通过S1-U接口与基站连接。基站与基站之间可以通过X2接口通信连接。终端设备可以通过无线通信接口与基站通信连接。
应理解，在图1中示出的核心网设备、接入网设备和终端设备仅为示例性标识，该通信***还可以包括更多的核心网设备、接入网设备或终端设备，本发明对核心网设备、接入网设备或终端设备的数量并未特别限定。
不失一般性，以下以MME、基站与终端设备之间的通信进行说明。应理解，这里所示出的MME、基站和终端设备仅为示例性说明，不应对本发明构成任何限定，本发明并不排除在未来的协议中定义的其他核心网设备、接入网设备或终端设备用于实现相同或相似的功能。
在图1所示的通信***中，终端设备可以通过与基站建立RRC连接接入网络，建立了RRC连接的终端设备处于连接态，释放了RRC连接的终端设备处于空闲(idle)态。处于连接态的终端设备可以与网络设备之间收发数据，处于空闲态的终端设备和网络设备之间没有信令连接。终端设备在空闲态下可以采用DRX方式来降低功率消耗。
在3GPP Release 14中，提出了一种新的连接态，即，轻型连接态。基站若发现终端设备在某个时段内处于不活跃，可以自行指示该终端设备进入轻型连接状态。终端设备在进入轻型连接状态之后，对MME隐藏自己的状态，也就是说，MME不知道终端设备的状态，仍然认为终端设备处于连接态。当有下行数据到达时，MME仍然按照终端设备处于连接态来处理，将下行数据发送至终端设备上一次连接着的基站(这里，为了便于区分和说明，将终端在进入轻型连接状态或空闲态之前上一次连接的基站记作锚基站)接收到下行数据的锚基站，在接入网寻呼区域中发起对终端设备的寻呼，以唤醒该终端设备，与网络侧进行数据传输。
这里，需要说明的是，接入网寻呼区域可以由运营商预先配置在各基站中，也可以由锚基站根据终端设备的位移的特点自行确定。本发明对于接入 网寻呼区域的确定并未特别限定。
当前技术中，空闲态的终端设备可以自行计算寻呼帧(Paging Frame，简称“PF”)和寻呼时机(Paging Occasion，简称“PO”)，并根据计算出的位置监听PDCCH，从而获取寻呼消息。其中，PF与PO均与终端设备的标识(Identifier，简称“ID”，终端设备的标识以下简称“UE_ID”)和DRX周期相关。
具体来说，PF位置：
PF＝SFN mod T＝(T div N)*(UE_ID mod N)，
在PF中的PO的索引:
i_s＝floor(UE_ID/N)mod NS。
其中，UE_ID可以根据终端设备的国际移动用户标识码(International Mobile Subscriber Identification Number，简称“IMSI”)确定，即，UE_ID＝IMSI mod 1024。T表示该终端设备的DRX周期，如果上层(即，非接入层(Non Access Stratum，简称“NAS”)分配了终端设备的专用DRX值(即，UE Specific DRX)，那么T为UE Specific DRX值和***信息中广播的(即，小区分配的)默认DRX值的最小值。如果上层没有配置UE Specific DRX，那么应用默认值。N＝min(T，nB)，nB取值为：4T、2T、T、1/2T、1/4T、1/8T、1/16T、1/32T。NS＝max(1，nB/T)。mod表示取模，div表示取商和余数，floor表示向下取整。
由上述公式可以看到，PF和PO与UE_ID、DRX(UE Specific DRX或默认DRX)值密切相关。
若锚基站在发起寻呼时，并不知道终端设备的相关参数(为便于说明，记作寻呼参数)，终端设备若仍然根据上述方法监听PDCCH，就有可能在很长一段时间里监听不到寻呼消息，而一直处于轻型连接态，或者，自行进入空闲态。因此，锚基站便不能有效地寻呼终端设备，终端设备则不能及时地接收到网络侧发送的下行数据，严重影响了用户体验。
有鉴于此，本发明实施例提出一种寻呼方法，锚基站在发起对终端设备的寻呼前，首先获取针对终端设备的寻呼参数，然后基于寻呼参数寻呼，从而能够快速有效地唤醒终端设备，进而完成数据传输。
以下，结合图2至图4详细说明根据本发明实施例的寻呼方法。
应理解，图2至图4是本发明实施例的寻呼方法的示意性流程图，示出 了该方法的详细的通信步骤或操作，但这些步骤或操作仅是示例，本发明实施例还可以执行其它操作或者图2、图3或图4中的各种操作的变形。此外，图2、图3或图4中的各个步骤可以分别按照与图2、图3或图4所呈现的不同的顺序来执行，并且有可能并非要执行图2、图3或图4中的全部操作。
需要说明的是，为便于区分和说明，在以下示出的实施例中，将锚基站记作第一基站(即，第一接入网设备的一例)，处于接入网寻呼区域中的除该第一基站之外的任意一个基站记作第二基站(即，第二接入网设备的一例)。换句话说，第一基站和第二基站都处于该接入网寻呼区域。其中，该接入网寻呼区域由该第一基站确定或预先配置。并且，第一基站和第二基站之间的关系并不是固定不变的，当终端设备在某个时段(例如，记作时段#A)处于某个基站(例如，记作基站#1)的覆盖范围内，在时段#A的下一个时段(例如，记作时段#B)进入轻型连接态，则该基站#1即为该终端设备的锚基站(或者说，第一基站)，其他处于该基站#1所配置的接入网寻呼区域中的基站都可以为第二基站；在时段#B的下一个时段(例如，记作时段#C)，若该终端设备位移至另一个基站(例如，记作基站#2)的覆盖范围内，并且在时段#C的下一个时段(例如，记作时段#D)进入轻型连接态，则该基站#2为该终端设备的锚基站，其他处于该基站#2所配置的接入网寻呼区域中的基站都可以为第二基站。
还需要说明的是，各基站所配置的接入网寻呼区域可以相同或者不同，本发明对此并未特别限定。但不论各基站所配置的接入网寻呼区域相同或者不同，都是以小区为单位来配置的，即，接入网寻呼区域包括至少一个小区。
图2是根据本发明一实施例的寻呼方法200的示意性流程图。如图2所示，该寻呼方法200包括：
S210，第一基站在第一时段获取用于寻呼终端设备的第一寻呼参数组。
为便于理解，这里将该终端设备由连接态转入轻型连接态之前的时段记作第一时段。在该第一时段，该终端设备可以首先请求与服务基站(例如，该第一基站)建立RRC连接，并在建立起RRC连接后，通过第一基站与核心网设备之间传输数据。
可选地，S210可以具体包括：
S211，该第一基站在第一时段接收终端设备发送的第一RRC消息，该第一RRC消息中携带该第一寻呼参数组；或者，
S212，该第一基站在第一时段接收MME发送的第一S1接口信令，该第一S1接口信令中携带该第一寻呼参数组。
作为示例而非限定，该第一寻呼参数组可以包括终端ID。该终端ID可以对应于上文中所描述的UE_ID，即，通过IMSI mod 1024得到的值，终端设备可以根据自身的IMSI自行计算获得，同时MME也可以根据终端设备发送的IMSI计算得到。
可选地，该在第一寻呼参数组还可以包括第一寻呼标识。该第一寻呼标识可以理解为在寻呼的过程中用于指示寻呼的对象的标识，该第一寻呼标识可以是MME在该终端设备首次附着网络的过程中，根据该终端设备发送的IMSI为其分配的标识。终端设备可以保存该标识，以便于在此后的RRC连接建立过程中携带此标识。
典型地，该第一寻呼标识可以为***架构演进临时移动站标识(System Architecture Evolution(简称“SAE”)Temporary Mobile Station Identifier，简称“S-TMSI”)。
应理解，这里所示例的第一寻呼标识的具体内容仅为示例性说明，而不应对本发明构成任何限定。该第一寻呼标识可以为S-TMSI，也可以为IMSI，甚至还可以为其他用于唯一地标识该终端设备的标识，本发明对此并未特别限定。还应理解，本发明实施例仅为便于区分和说明，将寻呼标识(例如，第一寻呼标识以及后文提及的第二寻呼标识)和终端标识区分命名，但这不应对本发明构成任何限定，本发明并不排除采用其他的命名来实现与寻呼标识和终端标识相同或相似的功能的可能。
在本发明实施例中，该第一寻呼参数组可以携带在第一RRC消息中，该第一RRC消息可以包括：RRC连接请求(RRC Connection Request)消息或者RRC连接建立完成消息(RRC Connection Setup Complete)消息。
相应地，该第一基站在第一时段接收终端设备发送的第一RRC消息，该第一RRC消息中携带该第一寻呼参数组，包括：
该第一基站在第一时段接收该终端设备发送的RRC Connection Request消息，该RRC Connection Request消息中携带该第一寻呼参数组；或者，
该第一基站在第一时段接收该终端设备发送的RRC Connection Setup Complete消息，该RRC Connection Setup Complete消息中携带该第一寻呼参数组。
在本发明实施例中，该第一寻呼参数组可以携带在第一S1接口信令中，该第一S1接口信令可以包括：初始上下文建立请求Initial Context Setup Request消息。
相应地，该第一基站在第一时段接收MME发送的第一S1接口信令，该第一S1接口信令中携带该第一寻呼参数组，包括：
具体地，由于第一基站在终端设备请求RRC连接时，从该终端设备获取第一寻呼参数组，或者，在该终端设备建立起RRC连接后，从MME获取第一寻呼参数组。
应理解，以上所列举的用于携带该第一寻呼参数组的消息仅为示例性说明，而不应对本发明构成任何限定。第一寻呼参数组可以携带在现有协议中规定的已有的消息(例如，上文列举的具体消息，或者，其他已有的消息)中，即，在现有的消息中增加用于指示第一寻呼参数组的信息，也可以携带在新增的消息中，即，在现有协议中新增消息用于携带该第一寻呼参数组，本发明对此并未特别限定。其中，使用现有协议中规定的已有的消息中携带该第一寻呼参数组，是一种比较易于实现的方法，同时可以减少信令开销。
进一步地，该第一寻呼参数组还可以包括专用DRX周期。
具体地，该专用DRX周期可以对应于上文中描述的UE Specific DRX值。该UE Specific DRX值可以在该终端设备首次附着网络的时候与IMSI一同或者单独发送给MME。因此，该第一基站在第一时段同样可以从终端设备或者MME获取，具体过程在上文中已经详细说明，这里为了简洁，不再赘述。
需要说明的是，在本发明实施例中，第一基站若能够获取到UE Specific DRX值，则基于该UE Specific DRX值寻呼终端设备，若无法获取到UE Specific DRX值，则可以基于小区默认的DRX值寻呼终端设备，本发明对此并未特别限定。
S220，该第一基站基于该第一寻呼参数组生成针对该终端设备的寻呼消息，并发送该寻呼消息。
该第一基站在接收到SGW发送的待发送给该终端设备的下行数据时，便可以基于第一寻呼参数组生成寻呼消息，以便于在接入网寻呼区域中寻呼该终端设备。该第一基站可以直接寻呼该终端设备，也可以通过其他基站(例如，第二基站)寻呼终端设备，以避免终端设备由于位移而离开了该第一基 站的覆盖范围，接收不到寻呼消息的可能。
可选地，S220可以具体包括：
S221，该第一基站基于该第一寻呼参数组生成第一寻呼消息，并向该终端设备发送该第一寻呼消息；
S222，该第一基站基于该第一寻呼参数组生成第二寻呼消息，并向第二基站发送第二寻呼消息，该第二寻呼消息中携带该第一寻呼参数组，该第二寻呼消息用于触发该第二基站基于该第一寻呼参数组向该终端设备发送该第三寻呼消息，其中，该第二基站为处于接入网寻呼区域中除该第一基站之外的任意一个基站，该接入网寻呼区域由该第一基站确定；
S223，该第二基站基于该第一寻呼参数组向该终端设备发送该第三寻呼消息。
即，第一基站和第二基站均可以基于第一寻呼参数组，向该终端设备发送寻呼消息。或者说，第一基站在接入网寻呼区域(即，一个或多个小区的范围)内寻呼该终端设备。
这里，需要说明的是，若该第一寻呼参数组中携带有专用DRX周期，并且，该专用DRX周期小于第一基站或第二基站默认配置的DRX周期，则第一基站和第二基站都可以基于第一寻呼参数组中所携带的终端ID和专用DRX周期向终端设备发送寻呼消息，此情况下，第一寻呼消息和第三寻呼消息可以为相同的寻呼消息，即，PF和PO是相同的。
若该第一寻呼参数组中未携带专用DRX周期，或者，该第一寻呼参数组中虽然携带有专用DRX周期，但是该专用DRX周期是大于第一基站或第二基站默认配置的DRX周期，则第一基站和可以根据默认配置的DRX周期与专用DRX的大小关系，选择较小的DRX周期计算PF和PO，第二基站也可以根据默认配置的DRX周期与专用DRX的大小关系，选择较小的DRX周期计算PF和PO(可以理解，第一基站和第二基站所对应的小区不同，其默认配置的DRX周期也可能不同)。此情况下，第一基站发送第一寻呼消息的PF和PO与第二基站发送第三寻呼消息的PF和PO有可能是不同的，即，也可以理解为第一寻呼消息和第三寻呼消息是不同的寻呼消息。
可选地，在S220之前，该寻呼方法200还包括：
S230，该第一基站向该终端设备发送第二RRC消息，该第二RRC消息指示该终端设备进入轻型连接态。
在该终端设备处于RRC连接态的情况下，该第一基站作为该终端设备的服务基站，可以获知该终端设备的活跃度。若该第一基站发现该终端设备在一个较长的时段内没有进行数据传输，或者说，不活跃，则可以自行指示该终端设备进入轻型连接态，而并不将终端设备的状态通知给MME。
可选地，该第二RRC消息可以为RRC连接重配置(RRC Connection Reconfiguration)消息或RRC连接释放(RRC Connection Release)消息。
应理解，第一基站指示终端设备进入轻型连接态的具体方法和过程与现有技术相似，这里为了简洁，不再赘述。
需要说明的是，该终端设备在进入轻型连接态之后，还可以自行进入空闲态。
S240，该终端设备基于该第一寻呼消息或第三寻呼消息，发送响应消息。
对于终端设备而言，虽然在S220中第一基站和第二基站均向该终端设备发送第一寻呼消息，但是该终端设备在某个特定的时刻可能仅仅驻留在一个小区中(为便于区分和说明，将该小区所属的基站记作目标基站，可以理解，该目标基站可能为第一基站，也可能为第二基站，本发明对此并未特别限定)，即，终端设备可能仅接收到一条第一寻呼消息(为便于区分和说明，记作目标寻呼消息，可以理解，目标寻呼消息为第一寻呼消息，也可以为第三寻呼消息)，并向发送该目标寻呼消息的目标基站发送响应消息。
在本发明实施例中，该终端设备向目标基站发送的响应消息可以为RRC连接重建立请求(RRC Connection Reestablishment Request)消息、RRC连接建立重新开始请求(RRC Connection Resume Request)消息或者RRC连接建立请求(RRC Connection Request)消息。
具体地，若该目标基站仍然为第一基站，则终端设备发起RRC连接重建立或重新开始或连接的过程，在建立起RRC连接后，第一基站将MME发送的下行数据发送给该终端设备。
若该目标基站为第二基站，则该终端设备发起RRC连接重建立或重新开始或连接建立的过程。在建立起RRC连接后，该第二基站从第一基站获取该终端设备的上下文信息，该第一基站将该待发送给该终端设备的下行数据转发给该第二基站，由该第二基站向该终端设备发送该下行数据。同时，第二基站向MME发送路径转换通知，以通知S-GW修改下行路径至该第二基站。即，若该终端设备再次进入轻型连接态时，该第二基站则成为了该终 端设备的锚基站。
应理解，图中仅为便于理解，示出了终端设备基于第一寻呼消息向第一基站发送响应消息的情形，但这不应对本发明构成任何限定，终端设备也有可能基于第三寻呼消息向第二基站发送响应消息。
还应理解，终端设备基于第一寻呼消息或第三寻呼消息(或者说，目标寻呼消息)发送响应消息，以及目标基站在接收到该响应消息之后所执行的动作与现有技术相似，这里为了简洁，不再赘述。
因此，本发明实施例的寻呼方法，通过在第一时段获取用于寻呼终端设备的第一寻呼参数组，在终端设备进入轻型连接态时，可以直接基于该第一寻呼参数组寻呼终端设备，能够有效地寻呼该终端设备，同时，减少了核心网寻呼的信令开销。并且，将第一寻呼参数组携带在现有协议中已有的消息中，可以节省信令开销，实现方便。
在一种可能的设计中，锚基站(例如，本发明实施例中的第一基站)在指示终端设备进入轻型连接态时，可以给该终端设备分配新的寻呼ID(为便于区分和说明，记作第二寻呼ID)和/或寻呼时刻。在这种情况下，锚基站可以基于第二寻呼ID和/或寻呼时刻寻呼终端设备。这里，为方便说明，将第二寻呼ID和/或寻呼时刻记作第二寻呼参数组。也就是说，该第二寻呼参数组可以仅包括第二寻呼ID，也可以仅包括寻呼时刻，还可以包括第二寻呼ID和寻呼时刻。其中，寻呼时刻可以理解为终端设备接收寻呼消息的时刻。
然而，由于终端设备在进入轻型连接态后，可能由于无线链路失败、随机接入失败或重新进入服务区等原因自行进入空闲态。进入空闲态的终端设备基于第一寻呼参数组监听PDCCH，而此时锚基站并不知道该终端设备进入了轻型连接态，仍然基于第二寻呼参数组寻呼终端设备，因此，终端设备可能接收不到锚基站基于第二寻呼参数发出的寻呼消息，即，寻呼失败。
有鉴于此，本发明有提供了一种寻呼方法，锚基站基于第二寻呼参数组寻呼终端设备，若在预设时长范围内未接收到终端设备的响应消息，则基于第一寻呼参数组寻该呼终端设备，从而能够在终端设备进入空闲态的情况下快速有效地寻呼终端设备。
以下，结合图3和图4详细说明锚基站(例如，第一基站)基于第二寻呼参数组寻呼终端设备的具体过程。
图3是根据本发明另一实施例的寻呼方法300的示意性流程图。如图3所示，该寻呼方法300包括：
S310，第一基站在第一时段获取用于寻呼终端设备的第一寻呼参数组。
S320，该第一基站向该终端设备发送第二RRC消息，该第二RRC消息指示该终端设备进入轻型连接态。
具体地，S310和S320的具体过程与方法200中的S210和S230的具体过程相似，这里为了简洁，不再赘述。
S330，该第一基站向该终端设备发送第二寻呼ID，或者，该第一基站向该终端设备发送第二寻呼ID和寻呼时刻的指示信息。
该第一基站在指示该终端设备进入了轻型连接态时，可以为该终端设备分配新的寻呼标识(为便于与上文中的第一寻呼ID区分，记作第二寻呼ID)，或者，该第一基站也可以为该终端设备配置新的寻呼时刻，或者，同时为该终端设备分配第二寻呼ID和寻呼时刻。
具体地，该第一基站可以根据是否在第一时段获取到第一寻呼参数组确定向该终端设备发送的信息。若该第一基站在第一时段获取到该第一寻呼参数组，则该第一基站可以根据第一寻呼参数组中的终端ID，以及专用DRX周期(或者，在该第一寻呼参数组不包括专用DRX周期的情况下，可以为小区默认的DRX周期)计算PF和PO，此情况下，该第一基站可以仅向该终端设备发送第二寻呼ID；若该第一基站未在第一时段获取到该第一寻呼参数组，则该第一基站可以为该终端设备配置寻呼时刻，并向该终端设备发送第二寻呼ID和寻呼时刻的指示信息。
这里，需要说明的是，寻呼时刻的指示信息用于指示寻呼时刻。该寻呼时刻的指示信息可以包括：新的DRX周期(即，该第一基站在指示该终端设备进入轻型连接态时分配的DRX周期，可以理解，该新的DRX周期可以与专用DRX周期相同或不同的周期)、接收寻呼消息的子帧以及时刻(即，可以理解为上文中所描述的PF和PO)。终端设备基于该寻呼时刻的指示信息，便可以确定寻呼时刻，基于该寻呼时刻去接收寻呼消息。，
在一种可能的设计中，该第二寻呼ID和寻呼时刻的指示信息均可以携带在S320中的第二RRC消息中，以节省信令开销。
即，S330可以具体包括：
该第一基站向该终端设备发送第二RRC消息，该第二RRC消息中可以 携带该第二寻呼ID，或者，该第二RRC消息中可以携带该第二寻呼ID和寻呼时刻的指示信息。
S340，该第一基站基于第二寻呼参数组寻呼该终端设备。
该第一基站在接收到SGW发送的待发送给该终端设备的下行数据时，便可以基于第二寻呼参数组生成针对该终端设备的寻呼消息，以便于在接入网寻呼区域中寻呼该终端设备。
这里，需要说明的是，若第一基站向终端设备仅发送第二寻呼ID，则该终端设备可以根据原来的PF和PO去接收寻呼消息，该寻呼消息中携带有第二寻呼ID。终端设备可以根据第一基站在S330中发送给该终端设备的第二寻呼ID来接收该寻呼消息。若终端设备接收到的寻呼消息中携带的寻呼ID(例如，记作寻呼ID#A)与该第一基站在S330中发送给该终端设备的第二寻呼ID(例如，记作寻呼ID#B)相同，则认为该寻呼消息是用于寻呼该终端设备的，若不同，则认为该寻呼消息并不是寻呼该终端设备的。
若该第一基站向该终端设备发送该第二寻呼ID和寻呼时刻的指示信息，则该终端设备可以基于该寻呼时刻的指示信息，在所指示的新的寻呼时刻去接收寻呼消息。终端设备基于第二寻呼ID接收寻呼消息的方法与上述方法相同，这里不再赘述。
可选地，S340可以具体包括：
S341，该第一基站基于该第二寻呼参数组生成第四寻呼消息，并向该终端设备发送第四寻呼消息；
S342，该第一基站生成第五寻呼消息，该第五寻呼消息中携带该第二寻呼ID，或者，该第五寻呼消息中携带该第二寻呼ID和寻呼时刻的指示信息，并向该第二基站发送第五寻呼消息，该第五寻呼消息用于触发该第二基站基于该第二寻呼参数组向该终端设备发送该第六寻呼消息；
S343，该第二基站基于该第二寻呼参数组向该终端设备发送该第六寻呼消息。
即，第一基站和第二基站均可以基于第二寻呼参数组，向该终端设备发送寻呼消息。或者说，第一基站在接入网寻呼区域(即，一个或多个小区的范围)内寻呼该终端设备。
这里，需要说明的是，若第五寻呼消息中携带有寻呼时刻的指示信息，则第一基站和第二基站都可以基于该寻呼时刻的指示信息，在所指示的寻呼 时刻基于第二寻呼ID向终端设备发送寻呼消息，此情况下，该第四寻呼消息和第六寻呼消息可以为相同的寻呼消息，即寻呼时刻是相同的。
若该第五寻呼消息中未携带有寻呼时刻的指示信息，则该第一基站和第二基站可以分别基于自身配置的默认的DRX周期，计算PF和PO，并在计算得到的PF和PO分别向终端设备发送寻呼消息，此情况下，第一基站发送第四寻呼消息的PF和PO与第二基站发送第六寻呼消息的PF和PO是不同的，即，也可以理解为第四寻呼消息和第六寻呼消息是不同的寻呼消息。
可以理解，若该终端设备仍然处于轻型连接态，则可能接收到基于第二寻呼参数组发送的寻呼消息(例如，第四寻呼消息或第六寻呼消息)，此情况下，该终端设备可以直接执行S360基于接收到的寻呼消息，向第一基站或第二基站发送响应消息。
S350，该第一基站基于第一寻呼参数组寻呼该终端设备。
由上文描述可知，该终端设备在进入轻型连接态后，有可能进入空闲态。若第一基站和第二基站在预设时长内未接收到该终端设备基于该第三寻呼消息的响应消息，则可以认为该终端设备可能进入了空闲态，可以基于第一寻呼参数组寻呼该终端设备。
在一种可能的实现方式中，该第一基站和第二基站可以分别设置定时器，通过预先设置时长阈值，在发出第三寻呼消息的时候启动该定时器，若在预先设置的时长阈值内未接收到该终端设备的响应消息，则可以认为该终端设备进入了空闲态，基于第一寻呼参数组寻呼该终端设备(即，发送第一寻呼消息)。
可选地，S350可以具体包括：
若该第一基站和该第二基站在预设时长内未接收到该终端设备基于该第四寻呼消息或第六寻呼消息的响应消息，该第一基站基于该第一寻呼参数组寻呼该终端设备。
应理解，该第一基站基于第一寻呼参数组寻呼该终端设备的具体过程可以与方法200中的S220的具体过程相似，这里为了简洁，不再赘述。
S360，该终端设备发送响应消息。
应理解，图中仅为便于理解，示出了终端设备基于第一基站发出的寻呼消息(例如，第一寻呼消息或第四自寻呼消息)发送响应消息的情形，但这不应对本发明构成任何限定，终端设备也有可能基于第二基站发出的寻呼消 息(例如，第三寻呼消息或第六寻呼消息)向第二基站发送响应消息。
还应理解，该终端设备基于第一寻呼消息发送响应消息，以及目标基站在接收到该响应消息之后所执行的动作与现有技术相似，这里为了简洁，不再赘述。
因此，本发明实施例的寻呼方法，通过预先设置时长阈值，在该预设的时长阈值内若未接收到该终端设备的响应消息，则自行切换到第一寻呼参数组寻呼该终端设备，从而可以避免因终端设备进入空闲态无法接收到寻呼消息的问题，提高了基站的寻呼效率。
图4是根据本发明又一实施例的寻呼方法400的示意性流程图。如图4所示，该寻呼方法400包括：
S410，该第一基站向该终端设备发送第二RRC消息，该第二RRC消息指示该终端设备进入轻型连接态。
具体地，S410的具体过程与方法300中的S320的具体过程相似，这里为了简洁，不再赘述。
S420，该第一基站在第二时段获取用于寻呼终端设备的第一寻呼参数组。
在本发明实施例中，该第一基站可以在该终端设备进入轻型连接态或者空闲态后，从MME获取第一寻呼参数组。
具体地，当第一基站接收到SGW发送的下行数据时，可以直接向MME发送寻呼参数请求消息，以请求获取该终端设备的第一寻呼参数组。该MME可以基于该寻呼参数请求消息，向该第一基站发送第二S1接口信令，该第二S1接口信令中携带该第一寻呼参数组。
可选地，该寻呼参数请求消息可以为寻呼请求消息，该第二S1接口信令可以为S1寻呼消息。
相应地，S420可以具体包括：
该第一基站向MME发送寻呼请求消息，该寻呼请求消息中携带用于标识该终端设备的信息；
该第一基站接收该MME基于该寻呼请求消息发送的S1寻呼消息，该S1寻呼消息中携带该第一寻呼参数组。
需要说明的是，在终端设备建立RRC连接的时候，基站和MME之间可以为该终端设备分配S1-MME接口的终端ID(为便于区分和说明，例如 可以记作终端ID-S1M，可以理解，该终端ID不同于上文中所描述的终端ID)，即，可以理解为控制面的终端ID。并且，基站通过MME与S-GW之间建立的隧道也可以为该终端设备分配S1-U接口的终端ID(为便于区分和说明，例如可以记作ID-S1U，可以理解，该终端ID也不同于上文所描述的终端ID和终端ID-S1M)，即，可以理解为用户面的终端ID。对于基站来说，它保存了同一个终端设备在各个不同接口的标识的对应关系，因此，在接收到S-GW发送的下行数据时，可以向MME发送携带用于标识该终端设备的信息(例如，这里所述的控制面的终端ID，或者，上文所述的第一寻呼ID)，以便于MME基于该信息发起对该终端设备的寻呼。
应理解，MME发起S1寻呼消息的具体过程可以与现有技术中的具体过程相同，这里为了简洁，不再赘述。
S430，该第一基站基于该第一寻呼参数组生成针对该终端设备的寻呼消息，并发送该寻呼消息。
具体地，S430的具体过程与方法200中的S220的具体过程相似，这里为了简洁，不再赘述。
MME在发起S1寻呼的过程中，将终端设备的寻呼参数(即，第一寻呼参数组)携带在S1寻呼消息中发送给了第一基站，该第一基站便可以基于该第一寻呼参数组寻呼该终端设备。
可选地，在S420之前，该寻呼方法400还包括：
S440，该第一基站向该终端设备发送第二寻呼ID，或者，该第一基站向该终端设备发送第二寻呼ID和寻呼时刻的指示信息。
S450，该第一基站基于第二寻呼参数组寻呼该终端设备。
S460，该终端设备发送响应消息。
由上文描述可知，该终端设备在进入轻型连接态后，有可能进入空闲态。若该终端设备接收到第一基站或第二基站基于第二寻呼参数组发送的寻呼消息，则直接执行S460；若第一基站和第二基站在预设时长内未接收到该终端设备基于该第三寻呼消息的响应消息，则可以认为该终端设备可能进入了空闲态，可以执行S430，即，基于第一寻呼参数组寻呼该终端设备。
具体地，S440和S450的具体过程与方法300中的S330和S340的具体过程相似，这里为了简洁，不再赘述。
应理解，图中仅为便于理解，示出了终端设备基于第一基站发出的寻呼 消息发送响应消息的情形，但这不应对本发明构成任何限定，终端设备也有可能基于第二基站发出的寻呼消息向第二基站发送响应消息。
因此，本发明实施例的寻呼方法，通过预先设置时长阈值，在该预设的时长阈值内若未接收到该终端设备的响应消息，则自行切换到第一寻呼参数组寻呼该终端设备，从而可以避免因终端设备进入空闲态无法接收到寻呼消息的问题，提高了基站的寻呼效率。
以上，结合图2至图4详细说明了根据本发明实施例的寻呼方法。以下，结合图5和图6详细说明根据本发明实施例的装置。
图5是根据本发明实施例的寻呼设备500的示意性框图。如图5所示，该寻呼设备500包括：处理单元510和收发单元520。具体地，该寻呼设备500可以对应(例如，可以配置于或本身即为)上述方法200、300或400中描述的第一基站，并且，该寻呼设备500中的各模块或单元分别用于执行上述方法200、300或400中第一基站所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图6是根据本发明实施例的寻呼设备600的另一示意性框图。如图6所示，该寻呼设备600包括：收发器610、处理器620、存储器630和总线***640。其中，该收发器640、处理器620和存储器630通过总线***640相连，该存储器630用于存储指令，该处理器620用于执行该存储器630存储的指令，以控制收发器610收发信号。其中，存储器630可以配置于处理器620中，也可以独立于处理器620。具体地，该寻呼设备600可以对应(例如，可以配置于或本身即为)上述方法200、300或400中描述的第一基站，并且，该寻呼设备600中的各模块或单元分别用于执行上述方法200、300或400中第一基站所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
应理解，本发明实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述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。上述的处理器可以是中央处理单元(Central Processing Unit，简称“CPU”)、该处理器还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，简称“DSP”)、专用集成电路(Application Specific Integrated Circuit，简称“ASIC“)、现成可编程门阵列(Field Programmable Gate Array，简称“FPGA”)或者其他可编 程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。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。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。结合本发明实施例所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器组合执行完成。软件器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。
还应理解，本发明实施例中的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，简称“ROM”)、可编程只读存储器(Programmable ROM，简称“PROM”)、可擦除可编程只读存储器(Erasable PROM，简称“EPROM”)、电可擦除可编程只读存储器(Electrically EPROM，简称“EEPROM”)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，简称“RAM”)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，简称“SRAM”)、动态随机存取存储器(Dynamic RAM，简称“DRAM”)、同步动态随机存取存储器(Synchronous DRAM，简称“SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，简称“DDR SDRAM”)、增强型同步动态随机存取存储器(Enhanced SDRAM，简称“ESDRAM”)、同步连接动态随机存取存储器(Synchlink DRAM，简称“SLDRAM”)和直接内存总线随机存取存储器(Direct Rambus RAM，简称“DR RAM”)。应注意，本文描述的***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。
还应理解，该总线***除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线***。
在实现过程中，上述方法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。结合本发明实施例所公开的用于数据传输的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件器组合执行完成。软件器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。为避免重复，这里不再详细描述。
本发明实施例还提出了一种计算机可读存储介质，该计算机可读存储介质存储一个或多个程序，该一个或多个程序包括指令，该指令当被包括多个应用程序的便携式电子设备执行时，能够使该便携式电子设备执行图2、图3或图4所示实施例的方法。
本发明实施例还提出了一种计算机可读存储介质，该计算机可读存储介质存储一个或多个程序，该一个或多个程序包括指令，该指令当被包括多个应用程序的便携式电子设备执行时，能够使该便携式电子设备执行图2、图3或图4所示实施例的方法。
应理解，在本发明的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
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***、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。
在本申请所提供的几个实施例中，应该理解到，所揭露的***、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***，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实施例方案的目的。
另外，在本发明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。
所述功能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)执行本发明各个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(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明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，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (26)

  1. 一种寻呼方法，其特征在于，包括：
    第一接入网设备在第一时段获取用于寻呼终端设备的第一寻呼参数组，所述第一时段为所述终端设备由连接态转入轻型连接态之前的时段，所述第一接入网设备为所述终端设备进入所述轻型连接态或空闲态之前上一次连接的接入网设备；或者，
    第一接入网设备在第二时段获取用于寻呼终端设备的第一寻呼参数组，所述终端设备在所述第二时段处于所述轻型连接态或所述空闲态；
    所述第一接入网设备基于所述第一寻呼参数组，生成针对所述终端设备的寻呼消息，并发送所述寻呼消息。
  2. 根据权利要求1所述的寻呼方法，其特征在于，所述第一寻呼参数组包括终端标识ID，所述终端ID由所述终端设备的国际移动用户标识IMSI计算得到，所述IMSI用于唯一地标识所述终端设备。
  3. 根据权利要求2所述的寻呼方法，其特征在于，所述第一寻呼参数组还包括:第一寻呼ID和/或专用非连续接收DRX周期，
    其中，所述第一寻呼ID是由核心网设备在所述终端设备建立所述RRC连接时根据所述终端设备的IMSI为所述终端设备分配的，所述专用DRX周期由所述终端设备确定。
  4. 根据权利要求2或3所述的寻呼方法，其特征在于，在所述第一接入网设备在所述第一时段获取所述第一寻呼参数组的情况下，所述第一接入网设备在第一时段获取用于寻呼终端设备的第一寻呼参数组，包括：
    所述第一接入网设备在所述第一时段接收所述终端设备发送的第一无线资源控制RRC消息，所述第一RRC消息中携带所述第一寻呼参数组；或者，
    所述第一接入网设备在所述第一时段接收所述核心网设备发送的第一S1接口信令，所述第一S1接口信令中携带所述第一寻呼参数组。
  5. 根据权利要求4所述的寻呼方法，其特征在于，所述第一RRC消息包括：RRC连接请求RRC Connection Request消息或者RRC连接建立完成RRC Connection Setup Complete消息；
    所述第一S1接口信令包括初始上下文建立请求Initial Context Setup Request消息。
  6. 根据权利要求2或3所述的寻呼方法，其特征在于，在所述第一接入网设备在所述第二时段获取所述第一寻呼参数组的情况下，所述第一接入网设备在第二时段获取用于寻呼终端设备的第一寻呼参数组，包括：
    所述第一接入网设备在所述第二时段向所述核心网设备发送寻呼参数请求消息，所述寻呼参数请求消息中携带用于标识所述终端设备的信息；
    所述第一接入网设备接收所述核心网设备发送的第二S1接口信令，所述第二S1接口信令中携带所述第一寻呼参数组。
  7. 根据权利要求6所述的寻呼方法，其特征在于，所述寻呼参数请求消息包括寻呼请求消息，所述第二S1接口信令包括S1接口的寻呼消息。
  8. 根据权利要求1至7中任一项所述的寻呼方法，其特征在于，所述第一接入网设备基于所述第一寻呼参数组，生成针对所述终端设备的寻呼消息，并发送所述寻呼消息，包括：
    所述第一接入网设备基于所述第一寻呼参数组生成第一寻呼消息；
    所述第一接入网设备向所述终端设备发送所述第一寻呼消息；
    所述第一接入网设备生成第二寻呼消息，所述第二寻呼消息中携带所述第一寻呼参数组；
    所述第一接入网设备向第二接入网设备发送所述第二寻呼消息，所述第二寻呼消息用于触发所述第二接入网设备基于所述第一寻呼参数组向所述终端设备发送第三寻呼消息，其中，所述第二接入网设备为处于接入网寻呼区域中除所述第一接入网设备之外的任意一个接入网设备，所述接入网寻呼区域由所述第一接入网设备确定。
  9. 根据权利要求1至8中任一项所述的寻呼方法，其特征在于，在所述第一接入网设备基于所述第一寻呼参数组，生成针对所述终端设备的寻呼消息之前，所述方法还包括：
    所述第一接入网设备向所述终端设备发送第二RRC消息，所述第二RRC消息指示所述终端设备进入所述轻型连接态。
  10. 根据权利要求9所述的寻呼方法，其特征在于，在所述第一接入网设备基于所述第一寻呼参数组，生成针对所述终端设备的寻呼消息之前，所述方法还包括：
    若所述第一接入网设备在所述第一时段获取所述第一寻呼参数组，所述第一接入网设备向所述终端设备发送第二寻呼ID，或者，第二寻呼ID和寻 呼时刻的指示信息，
    若所述第一接入网设备未在所述第一时段获取所述第一寻呼参数组，所述第一接入网设备向所述终端设备发送所述第二寻呼ID和所述寻呼时刻的指示信息；
    其中，所述第二寻呼ID是由所述第一接入网设备在指示所述终端设备进入所述轻型连接态时分配的ID，所述寻呼时刻的指示信息用于指示所述终端设备接收寻呼消息的时刻。
  11. 根据权利要求10所述的寻呼方法，其特征在于，所述第二RRC消息中携带所述第二寻呼ID，或者，所述第二RRC消息中携带所述第二寻呼ID和所述寻呼时刻的指示信息。
  12. 根据权利要求10或11所述的寻呼方法，其特征在于，在所述第一接入网设备基于所述第一寻呼参数组，生成针对所述终端设备的寻呼消息之前，所述方法还包括：
    所述第一接入网设备基于第二寻呼参数组，生成第四寻呼消息，所述第二寻呼参数组包括所述第二寻呼ID，或者，所述第二寻呼参数组包括所述第二寻呼ID和所述寻呼时刻；
    所述第一接入网设备向所述终端设备发送所述第四寻呼消息；
    所述第一接入网设备生成第五寻呼消息，所述第五寻呼消息中携带所述第二寻呼ID，或者，所述第五寻呼消息中携带所述第二寻呼ID和所述寻呼时刻的指示信息；
    所述第一接入网设备向所述第二接入网设备发送所述第五寻呼消息，所述第五寻呼消息用于触发所述第二接入网设备基于所述第二寻呼参数组向所述终端设备发送第六寻呼消息。
  13. 根据权利要求12所述的方法，其特征在于，所述第一接入网设备基于所述第一寻呼参数组，生成针对所述终端设备的寻呼消息，并发送所述寻呼消息，包括：
    若所述第一接入网设备和所述第二接入网设备在预设时长内未接收到所述终端设备基于所述第四寻呼消息或所述第六寻呼消息发送的响应消息，所述第一接入网设备基于所述第一寻呼参数组生成针对所述终端设备的寻呼消息，并发送所述寻呼消息。
  14. 一种寻呼设备，其特征在于，包括：
    处理单元，用于在第一时段获取用于寻呼终端设备的第一寻呼参数组，所述第一时段为所述终端设备由连接态转入轻型连接态之前的时段，所述寻呼设备为所述终端设备进入所述轻型连接态或空闲态之前上一次连接的设备；或者，
    用于在第二时段获取用于寻呼终端设备的第一寻呼参数组，所述终端设备在所述第二时段处于所述轻型连接态或所述空闲态；
    所述处理单元还用于基于所述第一寻呼参数组生成针对所述终端设备的寻呼消息；
    收发单元，用于发送所述终端设备。
  15. 根据权利要求14所述的寻呼设备，其特征在于，所述第一寻呼参数组包括终端标识ID，所述终端ID由所述终端设备的国际移动用户标识IMSI计算得到，所述IMSI用于唯一地标识所述终端设备。
  16. 根据权利要求15所述的寻呼设备，其特征在于，所述第一寻呼参数组还包括：第一寻呼ID和/或专用非连续接收DRX周期，
    其中，所述第一寻呼ID是由核心网设备在所述终端设备建立所述RRC连接时根据所述终端设备的IMSI为所述终端设备分配的，所述专用DRX周期由所述终端设备确定。
  17. 根据权利要求15或16所述的寻呼设备，其特征在于，所述处理单元具体用于在所述第一时段接收所述终端设备发送的第一无线资源控制RRC消息，所述第一RRC消息中携带所述第一寻呼参数组；或者，
    用于在所述第一时段接收所述核心网设备发送的第一S1接口信令，所述第一S1接口信令中携带所述第一寻呼参数组。
  18. 根据权利要求17所述的寻呼设备，其特征在于，所述第一RRC消息包括：RRC连接请求RRC Connection Request消息或者RRC连接建立完成RRC Connection Setup Complete消息；
    所述第一S1接口信令包括初始上下文建立请求Initial Context Setup Request消息。
  19. 根据权利要求15或16所述的寻呼设备，其特征在于，所述处理单元具体用于在所述第二时段向所述核心网设备发送寻呼参数请求消息，所述寻呼参数请求消息中携带用于标识所述终端设备的信息；
    所述收发单元还用于接收所述核心网设备发送的第二S1接口信令，所 述第二S1接口信令中携带所述第一寻呼参数组。
  20. 根据权利要求19所述的寻呼设备，其特征在于，所述寻呼参数请求消息包括寻呼请求消息，所述第二S1接口信令包括S1接口的寻呼消息。
  21. 根据权利要求14至20中任一项所述的寻呼设备，其特征在于，所述处理单元具体用于基于所述第一寻呼参数组生成第一寻呼消息和第二寻呼消息，所述第二寻呼消息中携带所述第一寻呼参数组；
    所述收发单元具体用于向所述终端设备发送所述第一寻呼消息；并向第二接入网设备发送第二寻呼消息，所述第二寻呼消息用于触发所述第二接入网设备基于所述第一寻呼参数组向所述终端设备发送第三寻呼消息，其中，所述第二接入网设备为处于接入网寻呼区域中除所述寻呼设备之外的任意一个接入网设备，所述接入网寻呼区域由所述寻呼网设备确定。
  22. 根据权利要求14至21中任一项所述的寻呼设备，其特征在于，在所述处理单元基于所述第一寻呼参数组生成针对所述终端设备的所述寻呼消息之前，所述收发单元还用于：向所述终端设备发送第二RRC消息，所述第二RRC消息指示所述终端设备进入所述轻型连接态。
  23. 根据权利要求22所述的寻呼设备，其特征在于，在所述处理单元基于所述第一寻呼参数组生成针对所述终端设备的所述寻呼消息之前，所述收发单元还用于：
    在所述寻呼设备在所述第一时段获取所述第一寻呼参数组的情况下，向所述终端设备发送第二寻呼ID，或者，第二寻呼ID和寻呼时刻的指示信息；
    在所述寻呼设备未在所述第一时段获取所述第一寻呼参数组的情况下，向所述终端设备发送所述第二寻呼ID和所述寻呼时刻的指示信息；
    其中，所述第二寻呼ID是由所述寻呼设备在指示所述终端设备进入所述轻型连接态时分配的ID，所述寻呼时刻用于指示所述终端设备接收寻呼消息的时刻。
  24. 根据权利要求23所述的寻呼设备，其特征在于，所述收发单元具体用于向所述终端设备发送所述第二RRC消息，所述第二RRC消息中携带所述第二寻呼ID，或者，所述第二RRC消息中携带所述第二寻呼ID和所述寻呼时刻的指示信息。
  25. 根据权利要求23或24所述的寻呼设备，其特征在于，在所述处理单元基于所述第一寻呼参数组生成针对所述终端设备的所述寻呼消息之前， 所述处理单元还用于：基于所述第二寻呼参数组生成第四寻呼消息和第五寻呼消息，所述第二寻呼参数组包括所述第二寻呼ID，或者，所述第二寻呼参数组包括所述第二寻呼ID和所述寻呼时刻，所述第五寻呼消息中携带所述第二寻呼ID，或者，所述第五寻呼消息中携带所述第二寻呼ID和所述寻呼时刻的指示信息；
    所述收发单元还用于：向所述终端设备发送所述第四寻呼消息；并向所述第二接入网设备发送所述第五寻呼消息，所述第五寻呼消息用于触发所述第二接入网设备基于所述第二寻呼参数组向所述终端设备发送第六寻呼消息。
  26. 根据权利要求25所述的寻呼设备，其特征在于，所述收发单元具体用于在所述寻呼设备和所述第二接入网设备在预设时长内未接收到所述终端设备基于所述第四寻呼消息或所述第六寻呼消息发送的响应消息的情况下，所述寻呼设备基于所述第一寻呼参数组寻呼所述终端设备。
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