WO2018195802A1 - 终端寻呼方法、设备及系统 - Google Patents

终端寻呼方法、设备及系统 Download PDF

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Publication number
WO2018195802A1
WO2018195802A1 PCT/CN2017/082001 CN2017082001W WO2018195802A1 WO 2018195802 A1 WO2018195802 A1 WO 2018195802A1 CN 2017082001 W CN2017082001 W CN 2017082001W WO 2018195802 A1 WO2018195802 A1 WO 2018195802A1
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WO
WIPO (PCT)
Prior art keywords
relay device
terminal
network device
paging
request message
Prior art date
Application number
PCT/CN2017/082001
Other languages
English (en)
French (fr)
Inventor
刘建华
杨宁
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201780090080.6A priority Critical patent/CN110574451B/zh
Priority to PCT/CN2017/082001 priority patent/WO2018195802A1/zh
Priority to KR1020197032586A priority patent/KR102287174B1/ko
Priority to US16/606,638 priority patent/US11129133B2/en
Priority to JP2019556273A priority patent/JP2020519063A/ja
Priority to EP17906880.4A priority patent/EP3609249A4/en
Publication of WO2018195802A1 publication Critical patent/WO2018195802A1/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
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • 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
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/045—Interfaces between hierarchically different network devices between access point and backbone network device

Definitions

  • the present invention relates to wireless network technologies, and in particular, to a terminal paging method, device, and system.
  • CA Carrier Aggregation
  • MIMO Multiple-Input Multiple-Output
  • CoMP Coordinatd Multiple Points Transmission/Reception
  • the IMT-Advanced system still has problems in coverage and capacity.
  • the device-to-device (D2D) technology means that adjacent terminals can transmit data through a direct link in a short range without forwarding through a central node (ie, a base station).
  • a central node ie, a base station
  • the D2D technology can be introduced in the licensed band of the IMT-Advanced system to form a hybrid network in which cellular communication and D2D communication coexist, as shown in FIG. 1, FIG. 1 is an existing cellular communication and Schematic diagram of a hybrid network in which D2D communication coexists.
  • the terminal can communicate in two different modes, one is a cellular communication mode, that is, the terminal communicates through the base station, and the other is a D2D communication mode, that is, the terminal directly communicates through the D2D link, as shown in FIG.
  • a cellular communication mode that is, the terminal communicates through the base station
  • a D2D communication mode that is, the terminal directly communicates through the D2D link
  • some terminals still forward and communicate information through the base station in a cellular communication mode, and some terminals directly transmit data in a D2D communication mode.
  • D2D relay can also be used to assist communication between the terminal and the base station, wherein a D2D communication mode can be adopted between the terminal and the D2D relay, and a cellular communication mode can be adopted between the D2D relay and the base station.
  • the D2D relay receives and forwards data in a half-duplex manner, and performs mode conversion in the process of receiving and forwarding.
  • FIG. 2 is a schematic diagram of a network in which a D2D trunk is introduced.
  • the terminal receives the paging information from the network side through the air interface. If the terminal has network coverage, this method usually has no problem, but if the terminal does not have network coverage, it is very Paging may not be received, resulting in paging failure, ie, reduced paging success rate.
  • the present invention provides a terminal paging method, device and system, which can improve the paging success rate.
  • a terminal paging method includes:
  • the core network device determines a relay device corresponding to the terminal to be paged
  • the core network device Sending, by the core network device, a paging request message to the access network device corresponding to the relay device, so that the access network device sends paging information to the relay device, and the relay device
  • the device relays the paging information to the terminal.
  • a terminal paging method includes:
  • the access network device receives a paging request message from the core network device
  • the access network device sends paging information to the relay device, so that the relay device relays the paging information to the terminal.
  • a terminal paging method includes:
  • the relay device receives the paging information from the access network device, where the paging information is sent to the relay device after the access network device receives the paging request message from the core network device;
  • the relay device relays the paging information to the terminal.
  • a terminal paging method includes:
  • the terminal receives the paging information from the relay device, and the paging information is sent to the relay device after the access network device receives the paging request message from the core network device.
  • a core network device includes: a first processing unit and a second processing unit;
  • the first processing unit is configured to determine a relay device corresponding to the terminal to be paged
  • the second processing unit is configured to send a paging request message to the access network device corresponding to the relay device, so that the access network device sends paging information to the relay device, and The device relays the paging information to the terminal.
  • An access network device includes: a third processing unit and a fourth processing unit;
  • the third processing unit is configured to receive a paging request message from a core network device, and determine a relay device corresponding to the paging request message;
  • the fourth processing unit is configured to send paging information to the relay device, so that The relay device relays the paging information to the terminal.
  • a relay device includes: a fifth processing unit and a sixth processing unit;
  • the fifth processing unit is configured to receive paging information from an access network device, where the paging information is sent to the relay after the access network device receives a paging request message from a core network device. equipment;
  • the sixth processing unit is configured to relay the paging information to the terminal.
  • a terminal includes: a seventh processing unit;
  • the seventh processing unit is configured to receive paging information from the relay device, where the paging information is sent by the access network device to the relay device after receiving the paging request message from the core network device. .
  • a terminal paging system includes:
  • the core network device as described above, such as the access network device described above, such as the relay device described above, and the terminal as described above.
  • the core network device may first determine the relay device corresponding to the terminal to be paged, and further the access network device corresponding to the relay device. After the paging request message is sent, the paging information can be sent by the access network device to the relay device, and the paging information is relayed to the terminal by the relay device, that is, the network side can page the terminal by means of the relay device. In this way, in the case that the terminal described in the prior art does not have network coverage, it is still possible to ensure that the terminal can receive the paging, thereby improving the paging success rate.
  • FIG. 1 is a schematic diagram of a hybrid network in which existing cellular communication and D2D communication coexist.
  • FIG. 2 is a schematic diagram of a network in which a D2D relay is introduced.
  • FIG. 3 is a flowchart of a first embodiment of a terminal paging method according to the present invention.
  • FIG. 4 is a flow chart of a second embodiment of a terminal paging method according to the present invention.
  • FIG. 5 is a flowchart of a third embodiment of a terminal paging method according to the present invention.
  • FIG. 6 is a flowchart of a fourth embodiment of a terminal paging method according to the present invention.
  • FIG. 7 is a schematic diagram of message flow between a core network device, an access network device, a relay device, and a terminal according to the present invention.
  • FIG. 8 is a schematic structural diagram of an embodiment of a core network device according to the present invention.
  • FIG. 9 is a schematic structural diagram of an embodiment of an access network device according to the present invention.
  • FIG. 10 is a schematic structural diagram of a structure of an embodiment of a relay device according to the present invention.
  • FIG. 3 is a flowchart of a method for paging a terminal according to the present invention. As shown in FIG. 3, the following specific implementation manners are included.
  • the core network device determines a relay device corresponding to the terminal to be paged.
  • the core network device needs to page the terminal.
  • the core network device needs to first determine the relay device corresponding to the terminal, and then the relay device can be used to relay the paging.
  • the core network device may also be determined first before determining the relay device corresponding to the terminal. It is determined whether the terminal has network coverage. If there is no network coverage, the relay device corresponding to the terminal may be further determined. If there is network coverage, the paging information may be sent to the terminal through the air interface according to the prior art.
  • How the core network device determines that the relay device corresponding to the terminal can be determined according to actual needs.
  • the relay device corresponding to the terminal may be determined according to the correspondence between the saved terminal and the relay device.
  • the core network device can pre-store the correspondence between the different terminals and the corresponding relay device, so that by querying the saved content, the relay device corresponding to any terminal can be known.
  • the core network device sends a paging request message to the access network device corresponding to the relay device, so that the access network device sends paging information to the relay device, and the paging device relays the paging information to the terminal. .
  • the core network device may send a paging request message to the access network of the relay device, requesting the access network paging terminal.
  • the core network device may send a paging request message to the access network device corresponding to the relay device, where the paging information, such as the identification information of the terminal, may be carried.
  • the core network device may send a paging request message through a specific S1 interface connection of the relay device, or may also send a paging request message through a non-specific S1 interface connection of the relay device.
  • the paging request message may further carry the identification information of the relay device.
  • the access network device may determine the relay device corresponding to the paging request message according to the specific S1 interface connection information, but if the core network device is a non-specific S1 interface through the relay device If the connection page device sends a paging request message, the access network device cannot determine the relay device according to the foregoing manner. Therefore, the identifier information of the relay device needs to be added to the paging request message, so that the access network device learns the paging request message. Corresponding relay device.
  • the access network device may send the paging information to the relay device, and then the paging information may be relayed to the terminal by the relay device, thereby achieving the purpose of paging the terminal.
  • FIG. 4 is a flowchart of a second embodiment of a method for paging a terminal according to the present invention. As shown in FIG. 4, the following specific implementation manners are included.
  • the access network device receives a paging request message from the core network device.
  • the relay device corresponding to the terminal may be determined, and a paging request message is sent to the access network device corresponding to the relay device.
  • the access network device may receive the paging request message through the specific S1 interface connection of the relay device, or may also receive the paging request message through the non-specific S1 interface connection of the relay device.
  • the paging request message When the paging request message is received through the non-specific S1 interface connection of the relay device, the paging request message further carries the identification information of the relay device.
  • the access network device determines a relay device corresponding to the paging request message.
  • the access network device After receiving the paging request message, the access network device needs to further determine the relay device corresponding to the paging request message, that is, determine which relay device needs to be used to relay the paging.
  • the network access device when receiving a paging request message through a specific S1 interface connection of the relay device, can determine the relay device according to the specific S1 interface connection information.
  • the access network device may determine the relay device according to the identification information of the relay device carried in the paging request message.
  • the access network device sends paging information to the relay device, so that the relay device relays the paging information to the terminal.
  • the access network device can carry the paging information in a dedicated message and send it to the relay device.
  • the dedicated message may refer to a Radio Resource Control (RRC) message or a Layer 2 Protocol Data Unit (PDU) message.
  • RRC Radio Resource Control
  • PDU Layer 2 Protocol Data Unit
  • the access network device carries the paging information in the dedicated message and sends the paging information to the relay device, and the relay device is required to relay the paging information of the terminal. Accordingly, the relay device relays the obtained paging information to the terminal.
  • FIG. 5 is a flowchart of a third embodiment of a method for paging a terminal according to the present invention. As shown in FIG. 5, the following specific implementation manners are included.
  • the relay device receives paging information from the access network device, and the paging information is sent to the relay device after the access network device receives the paging request message from the core network device.
  • the access network device may carry the paging information in a dedicated message and send the paging information to the relay device corresponding to the paging information.
  • the dedicated message may be an RRC message or a PDU message or the like.
  • the relay device may parse and process the received dedicated message in a corresponding manner, and discover/recognize that the information is sent to the terminal.
  • the relay device relays the paging information to the terminal.
  • the relay device may relay the paging information to the terminal through a short-range communication technology suitable for the terminal.
  • the relay device can relay paging information to the terminal through short-distance communication technologies such as Bluetooth and wifi.
  • FIG. 6 is a flowchart of a fourth embodiment of a method for paging a terminal according to the present invention. As shown in FIG. 6, the following specific implementation manners are included.
  • the core network device needs to page the terminal to determine the relay device corresponding to the terminal.
  • the core network device needs to page the terminal.
  • the core network device may first determine the relay device corresponding to the terminal, and then may use the relay device to relay the paging.
  • How the core network device determines that the relay device corresponding to the terminal can be determined according to actual needs.
  • the relay device corresponding to the terminal may be determined according to the correspondence between the saved terminal and the relay device.
  • the core network device sends a paging request message to the access network device corresponding to the relay device.
  • the paging request message may carry paging information, such as identification information of the terminal.
  • the core network device may send a paging request message through a specific S1 interface connection of the relay device, or may also send a paging request message through a non-specific S1 interface connection of the relay device.
  • the paging request message may further carry the identification information of the relay device.
  • the access network device receives the paging request message, and determines the relay device corresponding to the paging request message.
  • the access network device can receive the paging request message through the specific S1 interface connection of the relay device.
  • the paging request message may also be received through a non-specific S1 interface connection of the relay device.
  • the paging request message When the paging request message is received through the non-specific S1 interface connection of the relay device, the paging request message further carries the identification information of the relay device.
  • the access network device may determine the relay device according to the specific S1 interface connection information.
  • the access network device may determine the relay device according to the identification information of the relay device carried in the paging request message.
  • the access network device sends a dedicated message to the relay device carrying the paging information.
  • the dedicated message may be an RRC message or a PDU message or the like.
  • the relay device relays the paging information to the terminal.
  • the relay device can relay the paging information to the terminal through the short-distance communication technology, and the specific short-distance communication technology can be determined according to actual needs.
  • FIG. 7 is a schematic diagram of message flow between a core network device, an access network device, a relay device, and a terminal according to the present invention.
  • the network side can page the terminal by means of the relay device, so that, if the terminal described in the prior art does not have network coverage, the terminal can still ensure that the terminal can receive the terminal. Paging, which improves the paging success rate.
  • the terminal in each embodiment may be a D2D terminal (D2D UE) shown in FIG. 2, and the relay device in each embodiment may be FIG.
  • FIG. 8 is a schematic structural diagram of a core network device according to an embodiment of the present invention. As shown in FIG. 8, the method includes: a first processing unit 801 and a second processing unit 802.
  • the first processing unit 801 is configured to determine a relay device corresponding to the terminal to be paged.
  • the second processing unit 802 is configured to send a paging request message to the access network device corresponding to the relay device, so that the access network device sends the paging information to the relay device, and the paging device relays the paging information to the relay device. terminal.
  • the first processing unit 801 may first determine whether the terminal has network coverage. If there is no network coverage, the relay device corresponding to the terminal may be further determined.
  • the first processing unit 801 can determine the relay device corresponding to the terminal according to the correspondence between the saved terminal and the relay device.
  • the first processing unit 801 may notify the determined relay device to the second processing unit 802, and the second processing unit 802 may further send a paging request message to the access network device corresponding to the relay device.
  • the second processing unit 802 may send a paging request message through a specific S1 interface connection of the relay device, or may also send a paging request message through a non-specific S1 interface connection of the relay device.
  • the paging request message may further carry the identification information of the relay device.
  • the access network device may determine the relay device corresponding to the paging request message according to the specific S1 interface connection information, but if the second processing unit 802 is through the relay device If the non-specific S1 interface is connected to send the paging request message, the access network device cannot determine the relay device according to the foregoing manner. Therefore, the identification information of the relay device needs to be added to the paging request message, so that the access network device can learn.
  • the relay device corresponding to the paging request message if the second processing unit 802 is relayed If the specific S1 interface connection of the device sends the paging request message, the access network device may determine the relay device corresponding to the paging request message according to the specific S1 interface connection information, but if the second processing unit 802 is through the relay device If the non-specific S1 interface is connected to send the paging request message, the access network device cannot determine the relay device according to the foregoing manner. Therefore, the identification information of the relay device needs to be added to the paging request message, so that
  • the access network device may send the paging information to the relay device, and then the paging information may be relayed to the terminal by the relay device, thereby achieving the purpose of paging the terminal.
  • FIG. 9 is a schematic structural diagram of an embodiment of an access network device according to the present invention. As shown in FIG. 9, the method includes: a third processing unit 901 and a fourth processing unit 902.
  • the third processing unit 901 is configured to receive a paging request message from the core network device, and determine a relay device corresponding to the paging request message.
  • the fourth processing unit 902 is configured to send paging information to the relay device, so that the relay device relays the paging information to the terminal.
  • the relay device corresponding to the terminal may be determined, and a paging request message is sent to the access network device corresponding to the relay device.
  • the third processing unit 901 receives the paging request message and determines the relay device corresponding to the paging request message.
  • the third processing unit 901 may receive the paging request message through a specific S1 interface connection of the relay device, or receive the paging request message through the non-specific S1 interface connection of the relay device.
  • paging When receiving a paging request message through a non-specific S1 interface connection of the relay device, paging The message further carries the identification information of the relay device.
  • the third processing unit 901 may determine the relay device according to the specific S1 interface connection information.
  • the third processing unit 901 may determine the relay device according to the identification information of the relay device carried in the paging request message.
  • the third processing unit 901 may notify the determined relay device to the fourth processing unit 902, and the fourth processing unit 902 may send the paging information to the relay device, so that the relay device relays the paging information to the terminal.
  • the fourth processing unit 902 can carry the paging information in a dedicated message and send it to the relay device.
  • the dedicated message may be an RRC message or a PDU message or the like.
  • the fourth processing unit 902 carries the paging information in the dedicated message and sends the paging information to the relay device, and requests the relay device to relay the paging information of the terminal. Accordingly, the relay device relays the obtained paging information to the terminal. .
  • FIG. 10 is a schematic structural diagram of an embodiment of a relay device according to the present invention. As shown in FIG. 10, the method includes: a fifth processing unit 1001 and a sixth processing unit 1002.
  • the fifth processing unit 1001 is configured to receive paging information from the access network device, where the paging information is sent to the relay device after the access network device receives the paging request message from the core network device.
  • the sixth processing unit 1002 is configured to relay paging information to the terminal.
  • the access network device may carry the paging information in a dedicated message and send the paging information to the relay device corresponding to the paging information.
  • the dedicated message may be an RRC message or a PDU message or the like.
  • the fifth processing unit 1001 may perform parsing processing or the like on the received dedicated message in a corresponding manner, find/recognize that this is information transmitted to the terminal, and further, the sixth processing unit 1002 relays the paging information to the terminal.
  • the sixth processing unit 1002 can relay the paging information to the terminal through a short-range communication technology suitable for the terminal.
  • the present invention also discloses a terminal embodiment, which may include a seventh processing unit, configured to receive paging information from a relay device, where the paging information is that the access network device receives a paging request message from a core network device. After that, it is sent to the relay device.
  • a seventh processing unit configured to receive paging information from a relay device, where the paging information is that the access network device receives a paging request message from a core network device. After that, it is sent to the relay device.
  • the seventh processing unit can receive the paging information through the short-range communication technology.
  • the present invention also discloses a terminal paging system, which may include: a core network device in the embodiment shown in FIG. 8, such as the access network device in the embodiment shown in FIG. 9, as shown in FIG. a relay device in, and a terminal as described above.
  • a core network device in the embodiment shown in FIG. 8 such as the access network device in the embodiment shown in FIG. 9, as shown in FIG. a relay device in, and a terminal as described above.
  • the network side can page the terminal by means of the relay device, so that, if the terminal described in the prior art does not have network coverage, the terminal can still ensure that the terminal can receive the terminal. Paging, which improves the paging success rate.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the 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 above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present invention. Part of the steps.
  • 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

本发明公开了终端寻呼方法、设备及系统, 其中方法包括: 核心网设备确定待寻呼的终端对应的中继设备, 并向中继设备对应的接入网设备发送寻呼请求消息, 以便接入网设备向中继设备发送寻呼信息, 并由中继设备将寻呼信息中继给终端。应用本发明所述方案, 能够提高寻呼成功率等。

Description

终端寻呼方法、设备及系统 技术领域
本发明涉及无线网络技术，特别涉及终端寻呼方法、设备及系统。
背景技术
高级国际移动通信(IMT-Advanced，International Mobile Telecommunications-Advanced)系统中采用了载波聚合(CA，Carrier Aggregation)技术、增强的多入多出(MIMO，Multiple-Input Multiple-Output)天线技术、多点协作传输(CoMP，Coordinated Multiple Points Transmission/Reception)技术和中继技术等，在原有蜂窝通信系统的基础上，进一步提高了系统容量，改善了小区边缘用户的数据速率和用户体验。
但是，由于蜂窝通信系统以基站(BS，Base Station)为中心的小区覆盖和业务提供方式本身所存在的局限性，IMT-Advanced系统仍存在覆盖和容量等方面的问题。
终端直通(D2D，Device-to-Device)技术，是指邻近的终端可以在近距离范围内通过直连链路进行数据传输，而不需要通过中心节点(即基站)进行转发。
研究表明，D2D技术在节省资源、减小干扰和提升传输效率等方面具有很大优势，在IMT-Advanced系统中引入D2D技术，将会显著改善网络结构、增强覆盖以及提升系统容量等。
即可在IMT-Advanced系统授权频带引入D2D技术，从而形成蜂窝通信和D2D通信共存的混合网络，如图1所示，图1为现有蜂窝通信和 D2D通信共存的混合网络的示意图。
相应地，终端可以采用两种不同的模式通信，一种为蜂窝通信模式，即终端通过基站进行通信，另一种为D2D通信模式，即终端通过D2D链路直接通信，如图1所示，在该混合网络中，部分终端仍以蜂窝通信模式通过基站进行信息转发和通信，部分终端则以D2D通信模式进行数据的直接传输。
另外，还可以利用D2D中继(Relay)来辅助终端和基站之间的通信，其中，终端和D2D中继之间可采用D2D通信模式，而D2D中继和基站之间则可采用蜂窝通信模式，D2D中继使用半双工的方式接收和转发数据，并且在接收和转发的过程中进行模式转换，如图2所示，图2为现有引入了D2D中继的网络示意图。
在上述通过D2D中继辅助通信的场景中，终端通过空口接收来自网络侧的寻呼信息，如果终端有网络覆盖，那么这种方式通常不会存在问题，但是，如果终端没有网络覆盖，则很可能接收不到寻呼，从而导致寻呼失败，即降低了寻呼成功率。
发明内容
有鉴于此，本发明提供了终端寻呼方法、设备及系统，能够提高寻呼成功率。
具体技术方案如下：
一种终端寻呼方法，包括：
核心网设备确定待寻呼的终端对应的中继设备；
所述核心网设备向所述中继设备对应的接入网设备发送寻呼请求消息，以便所述接入网设备向所述中继设备发送寻呼信息，并由所述中继 设备将所述寻呼信息中继给所述终端。
一种终端寻呼方法，包括：
接入网设备接收来自核心网设备的寻呼请求消息；
所述接入网设备确定所述寻呼请求消息对应的中继设备；
所述接入网设备向所述中继设备发送寻呼信息，以便所述中继设备将所述寻呼信息中继给终端。
一种终端寻呼方法，包括：
中继设备接收来自接入网设备的寻呼信息，所述寻呼信息为所述接入网设备接收到来自核心网设备的寻呼请求消息后发送给所述中继设备的；
所述中继设备将所述寻呼信息中继给终端。
一种终端寻呼方法，包括：
终端接收来自中继设备的寻呼信息，所述寻呼信息为接入网设备接收到来自核心网设备的寻呼请求消息后，发送给所述中继设备的。
一种核心网设备，包括：第一处理单元以及第二处理单元；
所述第一处理单元，用于确定出待寻呼的终端对应的中继设备；
所述第二处理单元，用于向所述中继设备对应的接入网设备发送寻呼请求消息，以便所述接入网设备向所述中继设备发送寻呼信息，并由所述中继设备将所述寻呼信息中继给所述终端。
一种接入网设备，包括：第三处理单元以及第四处理单元；
所述第三处理单元，用于接收来自核心网设备的寻呼请求消息，并确定出所述寻呼请求消息对应的中继设备；
所述第四处理单元，用于向所述中继设备发送寻呼信息，以便所述 中继设备将所述寻呼信息中继给终端。
一种中继设备，包括：第五处理单元以及第六处理单元；
所述第五处理单元，用于接收来自接入网设备的寻呼信息，所述寻呼信息为所述接入网设备接收到来自核心网设备的寻呼请求消息后发送给所述中继设备的；
所述第六处理单元，用于将所述寻呼信息中继给终端。
一种终端，包括：第七处理单元；
所述第七处理单元，用于接收来自中继设备的寻呼信息，所述寻呼信息为接入网设备接收到来自核心网设备的寻呼请求消息后，发送给所述中继设备的。
一种终端寻呼系统，包括：
如以上所述的核心网设备，如以上所述的接入网设备，如以上所述的中继设备，以及，如以上所述的终端。
基于上述介绍可以看出，采用本发明所述方案，当需要寻呼终端时，核心网设备可首先确定出待寻呼的终端对应的中继设备，进而向中继设备对应的接入网设备发送寻呼请求消息，之后，可由接入网设备向中继设备发送寻呼信息，并由中继设备将寻呼信息中继给终端，即网络侧可借助于中继设备来寻呼终端，这样，对于现有技术中所述的终端没有网络覆盖的情况，依然可以确保终端能够接收到寻呼，从而提高了寻呼成功率。
附图说明
图1为现有蜂窝通信和D2D通信共存的混合网络的示意图。
图2为现有引入了D2D中继的网络示意图。
图3为本发明所述终端寻呼方法第一实施例的流程图。
图4为本发明所述终端寻呼方法第二实施例的流程图。
图5为本发明所述终端寻呼方法第三实施例的流程图。
图6为本发明所述终端寻呼方法第四实施例的流程图。
图7为本发明所述核心网设备、接入网设备、中继设备以及终端之间的消息流向示意图。
图8为本发明所述核心网设备实施例的组成结构示意图。
图9为本发明所述接入网设备实施例的组成结构示意图。
图10为本发明所述中继设备实施例的组成结构示意图。
具体实施方式
为了使本发明的技术方案更加清楚、明白，以下参照附图并举实施例，对本发明所述方案进行进一步说明。
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，本领域技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
图3为本发明所述终端寻呼方法第一实施例的流程图，如图3所示，包括以下具体实现方式。
在301中，核心网设备确定待寻呼的终端对应的中继设备。
比如，当有待寻呼的终端的数据需要发送时，核心网设备则需要寻呼终端。
相应地，为了寻呼终端，核心网设备需要先确定出终端对应的中继设备，进而可利用中继设备来中继寻呼。
其中，在确定出终端对应的中继设备之前，核心网设备还可首先确 定出终端是否有网络覆盖，如果没有网络覆盖，则可进一步确定出终端对应的中继设备，如果有网络覆盖，则可按照现有技术，通过空口来向终端发送寻呼信息。
如何确定终端是否有网络覆盖为现有技术。
核心网设备如何确定出终端对应的中继设备可根据实际需要而定。
比如，可根据所保存的终端与中继设备之间的对应关系，确定出终端对应的中继设备。
也就是说，核心网设备可预先保存不同的终端与对应的中继设备之间的对应关系，这样，通过查询所保存的内容，即可知道任一终端对应的中继设备。
在302中，核心网设备向中继设备对应的接入网设备发送寻呼请求消息，以便接入网设备向中继设备发送寻呼信息，并由中继设备将寻呼信息中继给终端。
在确定出终端对应的中继设备之后，核心网设备可向中继设备的接入网发送寻呼请求消息，要求接入网寻呼终端。
即核心网设备可向中继设备对应的接入网设备发送寻呼请求消息，其中可携带有寻呼信息，如终端的标识信息等。
另外，核心网设备可以通过中继设备的特定S1接口连接发送寻呼请求消息，或者，也可以通过中继设备的非特定S1接口连接发送寻呼请求消息。
当通过中继设备的非特定S1接口连接发送寻呼请求消息时，寻呼请求消息中可进一步携带有中继设备的标识信息。
这是因为对于接入网设备来说，如果核心网设备是通过中继设备的 特定S1接口连接发送寻呼请求消息的，那么接入网设备可根据特定S1接口连接信息确定出寻呼请求消息对应的中继设备，但如果核心网设备是通过中继设备的非特定S1接口连接发送寻呼请求消息的，那么接入网设备则不能按照上述方式确定出中继设备，因此需要在寻呼请求消息中加入中继设备的标识信息，以便接入网设备获知寻呼请求消息对应的中继设备。
在确定出寻呼请求消息对应的中继设备之后，接入网设备可向中继设备发送寻呼信息，进而可由中继设备将寻呼信息中继给终端，从而达到寻呼终端的目的。
图4为本发明所述终端寻呼方法第二实施例的流程图，如图4所示，包括以下具体实现方式。
在401中，接入网设备接收来自核心网设备的寻呼请求消息。
当核心网设备需要寻呼终端、且确定终端没有网络覆盖时，可确定出终端对应的中继设备，并向中继设备对应的接入网设备发送寻呼请求消息。
接入网设备可通过中继设备的特定S1接口连接接收寻呼请求消息，或者，也可以通过中继设备的非特定S1接口连接接收寻呼请求消息。
当通过中继设备的非特定S1接口连接接收寻呼请求消息时，寻呼请求消息中会进一步携带有中继设备的标识信息。
在402中，接入网设备确定寻呼请求消息对应的中继设备。
接入网设备在接收到寻呼请求消息之后，需要进一步确定出寻呼请求消息对应的中继设备，即确定出需要利用哪个中继设备来中继寻呼。
其中，当通过中继设备的特定S1接口连接接收寻呼请求消息时，接 入网设备可根据特定S1接口连接信息确定出中继设备。
当通过中继设备的非特定S1接口连接接收寻呼请求消息时，接入网设备可根据寻呼请求消息中携带的中继设备的标识信息确定出中继设备。
在403中，接入网设备向中继设备发送寻呼信息，以便中继设备将寻呼信息中继给终端。
接入网设备可将寻呼信息携带在专用消息中，发送给中继设备。
专用消息可以是指无线资源控制(RRC，Radio Resource Control)消息或层二的协议数据单元(PDU，Protocol Data Unit)消息等。
接入网设备将寻呼信息携带在专用消息中发送给中继设备，要求中继设备中继终端的寻呼信息，相应地，中继设备会将获取到的寻呼信息中继给终端。
图5为本发明所述终端寻呼方法第三实施例的流程图，如图5所示，包括以下具体实现方式。
在501中，中继设备接收来自接入网设备的寻呼信息，寻呼信息为接入网设备接收到来自核心网设备的寻呼请求消息后发送给中继设备的。
接入网设备接收到来自核心网设备的寻呼请求消息后，可将寻呼信息携带在专用消息中，发送给寻呼信息对应的中继设备。
专用消息可以是RRC消息或PDU消息等。
中继设备可采用相应的方式对接收到的专用消息进行解析处理等，发现/识别出这是发送给终端的信息。
在502中，中继设备将寻呼信息中继给终端。
具体地，中继设备可通过适合终端的短距离通信技术，将寻呼信息中继给终端。
比如，中继设备可通过蓝牙、wifi等短距离通信技术，将寻呼信息中继给终端。
基于上述介绍，图6为本发明所述终端寻呼方法第四实施例的流程图，如图6所示，包括以下具体实现方式。
在601中，核心网设备需要寻呼终端，确定出终端对应的中继设备。
比如，当有待寻呼的终端的数据需要发送时，核心网设备则需要寻呼终端。
相应地，为了寻呼终端，核心网设备可首先确定出终端对应的中继设备，进而可利用中继设备来中继寻呼。
核心网设备如何确定出终端对应的中继设备可根据实际需要而定。
比如，可根据所保存的终端与中继设备之间的对应关系，确定出终端对应的中继设备。
在602中，核心网设备向中继设备对应的接入网设备发送寻呼请求消息。
寻呼请求消息中可携带有寻呼信息，如终端的标识信息等。
另外，核心网设备可以通过中继设备的特定S1接口连接发送寻呼请求消息，或者，也可以通过中继设备的非特定S1接口连接发送寻呼请求消息。
当通过中继设备的非特定S1接口连接发送寻呼请求消息时，寻呼请求消息中可进一步携带有中继设备的标识信息。
在603中，接入网设备接收寻呼请求消息，确定出寻呼请求消息对应的中继设备。
接入网设备可通过中继设备的特定S1接口连接接收寻呼请求消息， 或者，也可以通过中继设备的非特定S1接口连接接收寻呼请求消息。
当通过中继设备的非特定S1接口连接接收寻呼请求消息时，寻呼请求消息中会进一步携带有中继设备的标识信息。
其中，当通过中继设备的特定S1接口连接接收寻呼请求消息时，接入网设备可根据特定S1接口连接信息确定出中继设备。
当通过中继设备的非特定S1接口连接接收寻呼请求消息时，接入网设备可根据寻呼请求消息中携带的中继设备的标识信息确定出中继设备。
在604中，接入网设备向中继设备发送专用消息，其中携带有寻呼信息。
专用消息可以是RRC消息或PDU消息等。
在605中，中继设备将寻呼信息中继给终端。
中继设备可通过短距离通信技术将寻呼信息中继给终端，具体采用何种短距离通信技术可根据实际需要而定。
综合上述介绍，图7为本发明所述核心网设备、接入网设备、中继设备以及终端之间的消息流向示意图。
在上述实施例中，对各实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其它实施例中的相关描述。
可以看出，采用上述各实施例所述方式，网络侧可借助于中继设备来寻呼终端，这样，对于现有技术中所述的终端没有网络覆盖的情况，依然可以确保终端能够接收到寻呼，从而提高了寻呼成功率。
另外，以图2所示场景为例，上述各实施例中的终端即可为图2中所示的D2D终端(D2D UE)，上述各实施例中的中继设备即可为图2 中所示的D2D中继。
以上是关于方法实施例的介绍，以下通过装置实施例，对本发明所述方案进行进一步说明。
图8为本发明所述核心网设备实施例的组成结构示意图，如图8所示，包括：第一处理单元801以及第二处理单元802。
第一处理单元801，用于确定出待寻呼的终端对应的中继设备。
第二处理单元802，用于向中继设备对应的接入网设备发送寻呼请求消息，以便接入网设备向中继设备发送寻呼信息，并由中继设备将寻呼信息中继给终端。
当需要寻呼某一终端时，第一处理单元801可首先确定出终端是否有网络覆盖，如果没有网络覆盖，则可进一步确定出终端对应的中继设备。
比如，第一处理单元801可根据所保存的终端与中继设备之间的对应关系，确定出终端对应的中继设备。
第一处理单元801可将确定出的中继设备通知给第二处理单元802，第二处理单元802则可进一步向中继设备对应的接入网设备发送寻呼请求消息。
具体地，第二处理单元802可以通过中继设备的特定S1接口连接发送寻呼请求消息，或者，也可以通过中继设备的非特定S1接口连接发送寻呼请求消息。
当通过中继设备的非特定S1接口连接发送寻呼请求消息时，寻呼请求消息中可进一步携带有中继设备的标识信息。
这是因为对于接入网设备来说，如果第二处理单元802是通过中继 设备的特定S1接口连接发送寻呼请求消息的，那么接入网设备可根据特定S1接口连接信息确定出寻呼请求消息对应的中继设备，但如果第二处理单元802是通过中继设备的非特定S1接口连接发送寻呼请求消息的，那么接入网设备则不能按照上述方式确定出中继设备，因此需要在寻呼请求消息中加入中继设备的标识信息，以便接入网设备获知寻呼请求消息对应的中继设备。
在确定出寻呼请求消息对应的中继设备之后，接入网设备可向中继设备发送寻呼信息，进而可由中继设备将寻呼信息中继给终端，从而达到寻呼终端的目的。
图9为本发明所述接入网设备实施例的组成结构示意图，如图9所示，包括：第三处理单元901以及第四处理单元902。
第三处理单元901，用于接收来自核心网设备的寻呼请求消息，并确定出寻呼请求消息对应的中继设备。
第四处理单元902，用于向中继设备发送寻呼信息，以便中继设备将寻呼信息中继给终端。
当核心网设备需要寻呼终端、且确定终端没有网络覆盖时，可确定出终端对应的中继设备，并向中继设备对应的接入网设备发送寻呼请求消息。
相应地，第三处理单元901接收寻呼请求消息，并确定出寻呼请求消息对应的中继设备。
第三处理单元901可通过中继设备的特定S1接口连接接收寻呼请求消息，或者，通过中继设备的非特定S1接口连接接收寻呼请求消息。
当通过中继设备的非特定S1接口连接接收寻呼请求消息时，寻呼请 求消息中会进一步携带有中继设备的标识信息。
其中，当通过中继设备的特定S1接口连接接收寻呼请求消息时，第三处理单元901可根据特定S1接口连接信息确定出中继设备。
当通过中继设备的非特定S1接口连接接收寻呼请求消息时，第三处理单元901可根据寻呼请求消息中携带的中继设备的标识信息确定出中继设备。
第三处理单元901可将确定出的中继设备通知给第四处理单元902，第四处理单元902会向中继设备发送寻呼信息，以便中继设备将寻呼信息中继给终端。
第四处理单元902可将寻呼信息携带在专用消息中，发送给中继设备。
专用消息可以是RRC消息或PDU消息等。
第四处理单元902将寻呼信息携带在专用消息中发送给中继设备，要求中继设备中继终端的寻呼信息，相应地，中继设备会将获取到的寻呼信息中继给终端。
图10为本发明所述中继设备实施例的组成结构示意图，如图10所示，包括：第五处理单元1001以及第六处理单元1002。
第五处理单元1001，用于接收来自接入网设备的寻呼信息，寻呼信息为接入网设备接收到来自核心网设备的寻呼请求消息后发送给中继设备的。
第六处理单元1002，用于将寻呼信息中继给终端。
接入网设备接收到来自核心网设备的寻呼请求消息后，可将寻呼信息携带在专用消息中，发送给寻呼信息对应的中继设备。
专用消息可以是RRC消息或PDU消息等。
第五处理单元1001可采用相应的方式对接收到的专用消息进行解析处理等，发现/识别出这是发送给终端的信息，进而由第六处理单元1002将寻呼信息中继给终端。
具体地，第六处理单元1002可通过适合终端的短距离通信技术，将寻呼信息中继给终端。
本发明同时公开了一种终端实施例，其中可包括第七处理单元，用于接收来自中继设备的寻呼信息，寻呼信息为接入网设备接收到来自核心网设备的寻呼请求消息后，发送给中继设备的。
第七处理单元可通过短距离通信技术接收寻呼信息。
本发明同时公开了一种终端寻呼系统，其中可包括：如图8所示实施例中的核心网设备，如图9所示实施例中的接入网设备，如图10所示实施例中的中继设备，以及，如以上所述的终端。
上述各设备及系统实施例的具体工作流程请参照前述方法实施例中的相应说明，不再赘述。
可以看出，采用上述各实施例所述方式，网络侧可借助于中继设备来寻呼终端，这样，对于现有技术中所述的终端没有网络覆盖的情况，依然可以确保终端能够接收到寻呼，从而提高了寻呼成功率。
在本发明所提供的几个实施例中，应该理解到，所揭露的设备和方法等，可以通过其它的方式实现。例如，以上所描述的设备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。
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。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元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)或处理器(processor)执行本发明各个实施例所述方法的部分步骤。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较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明保护的范围之内。

Claims (29)

  1. 一种终端寻呼方法，其特征在于，包括：
    核心网设备确定待寻呼的终端对应的中继设备；
    所述核心网设备向所述中继设备对应的接入网设备发送寻呼请求消息，以便所述接入网设备向所述中继设备发送寻呼信息，并由所述中继设备将所述寻呼信息中继给所述终端。
  2. 根据权利要求1所述的方法，其特征在于，
    所述核心网设备确定待寻呼的终端对应的中继设备之前，进一步包括：
    所述核心网设备确定所述终端是否有网络覆盖；
    如果没有网络覆盖，则所述核心网设备确定所述终端对应的中继设备。
  3. 根据权利要求1所述的方法，其特征在于，
    所述核心网设备确定待寻呼的终端对应的中继设备包括：
    所述核心网设备根据所保存的终端与中继设备之间的对应关系，确定出所述终端对应的中继设备。
  4. 根据权利要求1所述的方法，其特征在于，
    所述核心网设备向所述中继设备对应的接入网设备发送寻呼请求消息包括：
    所述核心网设备通过所述中继设备的特定S1接口连接发送所述寻呼请求消息；
    或者，所述核心网设备通过所述中继设备的非特定S1接口连接发送 所述寻呼请求消息。
  5. 根据权利要求4所述的方法，其特征在于，
    该方法进一步包括：
    当通过所述中继设备的非特定S1接口连接发送所述寻呼请求消息时，所述寻呼请求消息中携带有所述中继设备的标识信息。
  6. 一种终端寻呼方法，其特征在于，包括：
    接入网设备接收来自核心网设备的寻呼请求消息；
    所述接入网设备确定所述寻呼请求消息对应的中继设备；
    所述接入网设备向所述中继设备发送寻呼信息，以便所述中继设备将所述寻呼信息中继给终端。
  7. 根据权利要求6所述的方法，其特征在于，
    所述接入网设备接收来自核心网设备的寻呼请求消息包括：
    所述接入网设备通过所述中继设备的特定S1接口连接接收所述寻呼请求消息；
    或者，所述接入网设备通过所述中继设备的非特定S1接口连接接收所述寻呼请求消息。
  8. 根据权利要求7所述的方法，其特征在于，
    所述接入网设备确定所述寻呼请求消息对应的中继设备包括：
    当通过所述中继设备的特定S1接口连接接收所述寻呼请求消息时，所述接入网设备根据所述特定S1接口连接信息确定出所述中继设备；
    当通过所述中继设备的非特定S1接口连接接收所述寻呼请求消息时，所述接入网设备根据所述寻呼请求消息中携带的所述中继设备的标 识信息确定出所述中继设备。
  9. 根据权利要求6所述的方法，其特征在于，
    所述接入网设备向所述中继设备发送寻呼信息包括：
    所述接入网设备将所述寻呼信息携带在专用消息中，发送给所述中继设备。
  10. 根据权利要求9所述的方法，其特征在于，
    所述专用消息包括：无线资源控制RRC消息、协议数据单元PDU消息。
  11. 一种终端寻呼方法，其特征在于，包括：
    中继设备接收来自接入网设备的寻呼信息，所述寻呼信息为所述接入网设备接收到来自核心网设备的寻呼请求消息后发送给所述中继设备的；
    所述中继设备将所述寻呼信息中继给终端。
  12. 根据权利要求11所述的方法，其特征在于，
    所述中继设备将所述寻呼信息中继给终端包括：
    所述中继设备通过短距离通信技术将所述寻呼信息中继给所述终端。
  13. 一种终端寻呼方法，其特征在于，包括：
    终端接收来自中继设备的寻呼信息，所述寻呼信息为接入网设备接收到来自核心网设备的寻呼请求消息后，发送给所述中继设备的。
  14. 根据权利要求13所述的方法，其特征在于，
    所述终端接收来自中继设备的寻呼信息包括：
    所述终端通过短距离通信技术接收所述寻呼信息。
  15. 一种核心网设备，其特征在于，包括：第一处理单元以及第二处理单元；
    所述第一处理单元，用于确定出待寻呼的终端对应的中继设备；
    所述第二处理单元，用于向所述中继设备对应的接入网设备发送寻呼请求消息，以便所述接入网设备向所述中继设备发送寻呼信息，并由所述中继设备将所述寻呼信息中继给所述终端。
  16. 根据权利要求15所述的核心网设备，其特征在于，
    所述第一处理单元进一步用于，
    在确定待寻呼的终端对应的中继设备之前，确定所述终端是否有网络覆盖，如果没有网络覆盖，则确定出所述终端对应的中继设备。
  17. 根据权利要求15所述的核心网设备，其特征在于，
    所述第一处理单元根据所保存的终端与中继设备之间的对应关系，确定出所述终端对应的中继设备。
  18. 根据权利要求15所述的核心网设备，其特征在于，
    所述第二处理单元通过所述中继设备的特定S1接口连接发送所述寻呼请求消息；
    或者，所述第二处理单元通过所述中继设备的非特定S1接口连接发送所述寻呼请求消息。
  19. 根据权利要求18所述的核心网设备，其特征在于，
    所述第二处理单元进一步用于，
    当通过所述中继设备的非特定S1接口连接发送所述寻呼请求消息时，在所述寻呼请求消息中携带所述中继设备的标识信息。
  20. 一种接入网设备，其特征在于，包括：第三处理单元以及第四处理单元；
    所述第三处理单元，用于接收来自核心网设备的寻呼请求消息，并确定出所述寻呼请求消息对应的中继设备；
    所述第四处理单元，用于向所述中继设备发送寻呼信息，以便所述中继设备将所述寻呼信息中继给终端。
  21. 根据权利要求20所述的接入网设备，其特征在于，
    所述第三处理单元通过所述中继设备的特定S1接口连接接收所述寻呼请求消息；
    或者，所述第三处理单元通过所述中继设备的非特定S1接口连接接收所述寻呼请求消息。
  22. 根据权利要求21所述的接入网设备，其特征在于，
    当通过所述中继设备的特定S1接口连接接收所述寻呼请求消息时，所述第三处理单元根据所述特定S1接口连接信息确定出所述中继设备；
    当通过所述中继设备的非特定S1接口连接接收所述寻呼请求消息时，所述第三处理单元根据所述寻呼请求消息中携带的所述中继设备的标识信息确定出所述中继设备。
  23. 根据权利要求20所述的接入网设备，其特征在于，
    所述第四处理单元将所述寻呼信息携带在专用消息中，发送给所述中继设备。
  24. 根据权利要求23所述的接入网设备，其特征在于，
    所述专用消息包括：无线资源控制RRC消息、协议数据单元PDU 消息。
  25. 一种中继设备，其特征在于，包括：第五处理单元以及第六处理单元；
    所述第五处理单元，用于接收来自接入网设备的寻呼信息，所述寻呼信息为所述接入网设备接收到来自核心网设备的寻呼请求消息后发送给所述中继设备的；
    所述第六处理单元，用于将所述寻呼信息中继给终端。
  26. 根据权利要求25所述的中继设备，其特征在于，
    所述第六处理单元通过短距离通信技术将所述寻呼信息中继给所述终端。
  27. 一种终端，其特征在于，包括：第七处理单元；
    所述第七处理单元，用于接收来自中继设备的寻呼信息，所述寻呼信息为接入网设备接收到来自核心网设备的寻呼请求消息后，发送给所述中继设备的。
  28. 根据权利要求27所述的终端，其特征在于，
    所述第七处理单元通过短距离通信技术接收所述寻呼信息。
  29. 一种终端寻呼系统，其特征在于，包括：
    如权利要求15～19中任一项所述的核心网设备，如权利要求20～24中所述的接入网设备，如权利要求25～26中任一项所述的中继设备，以及，如权利要求27～28中任一项所述的终端。
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