WO2017050250A1 - 一种寻呼方法及装置 - Google Patents

一种寻呼方法及装置 Download PDF

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Publication number
WO2017050250A1
WO2017050250A1 PCT/CN2016/099720 CN2016099720W WO2017050250A1 WO 2017050250 A1 WO2017050250 A1 WO 2017050250A1 CN 2016099720 W CN2016099720 W CN 2016099720W WO 2017050250 A1 WO2017050250 A1 WO 2017050250A1
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Prior art keywords
user equipment
access node
cell
radio access
wireless access
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PCT/CN2016/099720
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English (en)
French (fr)
Inventor
陈君
张宏平
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华为技术有限公司
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Publication of WO2017050250A1 publication Critical patent/WO2017050250A1/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

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a paging method and apparatus.
  • TA Tracking Area; English is used in the LTE system.
  • the UE in idle state (Chinese: User Equipment; English: User Equipment) performs location management.
  • a TA may contain one or more cells, and one cell may belong to only one TA.
  • the MME (Chinese: Mobility Management Entity) assigns a TA list to the UE (Chinese: Tracking Area List; English: Tracking Area List).
  • the TA list lists multiple TACs, indicating that if the UE moves to If the cell belongs to the TA of the TAC listed in the TA list, the UE does not need to perform the TA update. Otherwise, if the cell to which the UE moves does not belong to the TA of the TAC representative listed in the TA list, the UE needs to perform TAU (Chinese: Tracking Area) Update; English: Tracking Area Update).
  • the MME When CN (Chinese: Core Network; English: Core Network) needs to page the UE, the MME will give all the eNBs corresponding to the TAs represented by the TACs listed in the TA list of the UE (Chinese: Evolved Base Station; English: evolved Node B) Sending paging signaling, one eNB corresponds to at least one cell, and each eNB sends paging signaling in its corresponding cell.
  • the embodiment of the invention provides a paging method and device, which are used to solve the technical problem of large paging signaling in the prior art.
  • An embodiment of the present invention provides a paging method, including:
  • the first radio access node receives the paging signaling sent by the core network, where the paging signaling includes an identifier of the paging area and the user equipment, where the paging area in the paging signaling includes at least the wireless network a paging area allocated by the first wireless access node;
  • the first wireless access node sends the paging signaling in a paging area allocated by the wireless network to the first wireless access node.
  • the determining, by the first radio access node, the identifier of the user equipment in the paging signaling is the first radio interface Before entering the pre-stored identifier of the node, it also includes:
  • the first radio access node receives the location signaling sent by the user equipment, where the location signaling indicates that the user equipment enters the first cell, and the radio access node where the first cell is located is the first Wireless access node;
  • the first wireless access node stores information of the user equipment, where the information of the user equipment includes at least an identifier of the user equipment.
  • the method further includes:
  • the wireless access node where the second cell is located is a second wireless access node
  • the information about the user equipment that is stored by the first radio access node further includes a cell where the user equipment is located
  • the identifier or the tracking area TA where the user equipment is located, the identifier of the cell where the user equipment is located in the information of the user equipment that is stored by the first wireless access node, or the TA where the user equipment is located The logo is updated;
  • the first radio access node deletes information about the user equipment that has been stored by the first radio access node.
  • the determining, by the first radio access node, the identifier of the user equipment in the paging signaling is the first radio interface Before entering the pre-stored identifier of the node, it also includes:
  • the first radio access node receives the data transmission initiated by the user equipment in the third cell, where the radio access node where the third cell is located is the first radio access node;
  • the first wireless access node stores information of the user equipment, where the information of the user equipment includes at least an identifier of the user equipment.
  • the method further includes:
  • the third cell is a cell in which the user equipment moves from the fourth cell, and the wireless access node where the fourth cell is located is a fourth wireless access node;
  • the fourth radio access node is the same as the first radio access node, and the information about the user equipment that is stored by the first radio access node further includes an identifier of a cell where the user equipment is located or And the first wireless access node updates the identifier of the cell where the user equipment is located or the identifier of the TA where the user equipment is located in the information about the user equipment that is stored by the user equipment;
  • the first radio access node notifies the fourth radio access node that the fourth radio access node has stored The information of the user equipment is deleted.
  • the determining, by the first radio access node, the identifier of the user equipment in the paging signaling is the first radio interface Enter Before the node pre-stored the identifier, it also includes:
  • the first radio access node periodically detects a predetermined signal sent by the user equipment, where the predetermined signal indicates that the user equipment is located in a paging area allocated by the wireless network to the first radio access node;
  • the first radio access node stores information of the user equipment, where the information of the user equipment at least includes the user equipment Logo.
  • the method further includes :
  • the first wireless access node does not detect the predetermined signal sent by the user equipment at a second moment, the first wireless access node has stored the first wireless access node The information of the user device is deleted.
  • the information of the user equipment further includes: an identifier of a cell where the user equipment is located, or an identifier of a tracking area TA where the user equipment is located, where the first wireless access node is the first wireless connection in the wireless network Transmitting the paging signaling in a paging area allocated by the ingress node, including:
  • the first radio access node sends the paging signaling in a tracking area where the user equipment is located.
  • a second aspect of the embodiments of the present invention provides a paging apparatus, including:
  • a receiving unit configured to receive paging signaling sent by the core network, where the paging signaling includes an identifier of a paging area and a user equipment, where the paging area in the paging signaling includes at least a wireless network a paging area allocated by a wireless access node;
  • a determining unit configured to determine that the identifier of the user equipment in the paging signaling is the first An identifier stored in advance by the wireless access node
  • a sending unit configured to send the paging signaling in a paging area allocated by the wireless network to the first wireless access node.
  • the receiving unit is further configured to:
  • the device also includes a storage unit for:
  • the receiving unit is further configured to:
  • the wireless access node is a second wireless access node
  • the device further includes a first update unit or a first deletion unit;
  • the first update unit is configured to: if the second wireless access node is the same as the first wireless access node, and the information about the user equipment that is stored by the first wireless access node further includes The identifier of the cell where the user equipment is located or the tracking area TA where the user equipment is located, and the identifier of the cell where the user equipment is located or the identifier of the TA where the user equipment is located in the information of the user equipment that has been stored Update;
  • the first deleting unit is configured to: if the second wireless access node is different from the first wireless access node, delete information about the user equipment that is stored by the first wireless access node .
  • the receiving unit is further configured to:
  • the line access node is the first wireless access node
  • the storage unit is configured to: store information of the user equipment, where the information of the user equipment includes at least an identifier of the user equipment.
  • the third cell is a cell in which the user equipment moves from a fourth cell, where The wireless access node where the four cells are located is the fourth wireless access node;
  • the device further includes a second update unit or a second deletion unit;
  • the second update unit is configured to: if the fourth radio access node is the same as the first radio access node, and the information about the user equipment that is stored by the first radio access node further includes The identifier of the cell where the user equipment is located or the TA where the user equipment is located is updated, and the identifier of the cell where the user equipment is located or the identifier of the TA where the user equipment is located is updated in the stored information of the user equipment. ;
  • the second deleting unit is configured to notify the fourth wireless access node that the fourth wireless access node has been stored in the fourth wireless access node if the fourth wireless access node is different from the first wireless access node.
  • the information of the user equipment is deleted.
  • the device further includes a detecting unit, configured to:
  • the storage unit is configured to: if the first wireless access node detects the predetermined signal at a first moment, store information of the user equipment, where the information of the user equipment at least includes an identifier of the user equipment .
  • the device further includes a third deleting unit, configured to:
  • the first radio access node does not detect the predetermined signal sent by the user equipment at the second moment, deleting information about the user equipment that has been stored by the first radio access node.
  • the information of the user equipment further includes: an identifier of the cell where the user equipment is located, or an identifier of the tracking area TA where the user equipment is located, where the sending unit is used to:
  • the wireless access node stores the identifier of the user equipment in advance. After the wireless access node receives the paging signaling sent by the core network, the wireless access node determines the identifier of the user equipment included in the paging signaling. Whether the pre-stored identifiers are the same. If they are the same, the wireless access point sends paging signaling in the paging area allocated by the wireless network. If it is different, no processing is performed, or the received paging is directly discarded. Signaling. Therefore, although the core network sends paging signaling to multiple wireless access points, not every wireless access point continues to forward paging signaling, and only the user equipment included in the paging signaling is pre-stored. The identified wireless access point forwards the paging signaling within the paging area allocated by the wireless network, thereby reducing the paging signaling overhead.
  • 1 is a system applicable to a paging method provided by an embodiment of the present invention
  • FIG. 2 is a flowchart of a paging method according to an embodiment of the present invention.
  • FIG. 3 is a functional block diagram of a paging apparatus according to an embodiment of the present invention.
  • FIG. 4 is a hardware structural diagram of a wireless access node according to an embodiment of the present invention.
  • FIG. 5 is a first schematic diagram of a paging system according to an embodiment of the present invention.
  • FIG. 6 is a second schematic diagram of a paging system according to an embodiment of the present invention.
  • the technical solution described in the embodiment of the present invention can be used in an LTE network or a 5G (Chinese: fifth generation; mobile communication technology network).
  • UE user equipment
  • the user equipment can communicate with the core network via the RAN-Node to exchange voice and/or data with the RAN-Node.
  • the user equipment may be referred to as a wireless terminal, a mobile terminal, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, and an AP. , an access point, a remote terminal, an access terminal, a user terminal, a user agent, or a user device.
  • it can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, a portable, pocket, handheld, computer built-in or in-vehicle mobile device.
  • PCS Personal Communication Service
  • cordless telephone SIP (Session Initiation Protocol) telephone
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the radio access node may be, for example, an eNB (evolved Node B, an evolved Node B), an RNC (radio network controller), an NB (Node B, a Node B), a BSC (Base Station Controller), and a base station controller.
  • eNB evolved Node B
  • RNC radio network controller
  • NB Node B, a Node B
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • home base station for example, Home evolved NodeB, or Home Node B, HNB
  • Wifi AP Access Point, access point
  • the wireless access device may also be a BBU (BaseBand Unit).
  • BBU BaseBand Unit
  • a geographical area composed of a continuously covered cell is called a TA.
  • each TA has a TAC.
  • a TA may include one or more cells, and one cell can belong to only one TA. That is, one cell can only correspond to one TAC, and the MME broadcasts a system message to the cell to inform the TAC corresponding to the cell.
  • TA list (Chinese: Tracking Area List; English: Tracking Area List): Contains at least one TAC.
  • the MME allocates a TA list to the UE.
  • the TA list lists multiple TACs, indicating that the cell to which the UE moves belongs to the TA.
  • the TA of the TAC represented by the list does not need to perform the TA update. Otherwise, if the cell to which the UE moves does not belong to the TA of the TAC representative listed in the TA list, the UE needs to perform TAU, and the MME records the new TA list of the UE. .
  • the RAN-Node includes at least one cell, that is, the RAN-Node serves at least one cell.
  • TA list has multiple TACs, TA with each TAC consists of one continuous coverage cell, and RAN-Node contains at least one cell, so it is equivalent to TA list. There are a plurality of RAN-Nodes listed, and the cell served by each RAN-Node belongs to the TA represented by the TAC listed in the TA list.
  • system and “network” in this application may be used interchangeably.
  • Multiple means two or more.
  • the character "/”, unless otherwise specified, generally indicates that the contextual object is an "or" relationship.
  • FIG. 1 is a system applicable to a paging method provided by an embodiment of the present invention. Includes: Core network, wireless access node, user equipment. If the system is an LTE system, the CN corresponds to the MME, the RAN-Node corresponds to the eNB, and the UE may be an LTE UE; if the system is a 5G system, the CN and the RAN-Node are different nodes, and its function is on the corresponding node in the LTE. Will be enhanced or changed, the UE is a 5G UE.
  • the trigger for paging comes from the CN.
  • the CN needs to page UE1, it sends paging signaling to all RAN-Nodes corresponding to the TAC listed in the TA list of UE1, and the paging signaling includes the identifier of UE1. All RAN-Nodes that receive the paging signaling transmit the paging signaling in the respective serving cell.
  • RAN-Nodes corresponding to the TAC listed in the TA list include: RAN-Node1, RAN-Node2, and RAN-Node3, the CN sends paging instructions to both RAN-Node1, RAN-Node2, and RAN-Node3.
  • RAN-Node1 serves cell 1
  • cell 2 and cell 3 RAN-Node2
  • RAN-Node3 serves cell 6
  • cell 1-6 will receive paging signaling, of course, cell 1- 6 corresponds to the TAC on the TA list.
  • UE1 is only located in one cell of cells 1-6, it is impossible to be located in cell 1-6 at the same time. For example, if UE1 is located in cell 1, the paging signaling received in cell 2-6 is actually unnecessary. . Further, the paging signaling received by the cell 4-5 is sent by the RAN-Node2, and the paging signaling received by the cell 6 is sent by the RAN-Node3, and therefore, the RAN-Node2 and the RAN-Node3 receive No paging signaling is required after paging signaling. It is necessary for the RAN-Node1 to send the paging signaling after receiving the paging signaling. Otherwise, the UE1 located in the cell 1 will not receive the paging signaling, and thus will not respond to the paging signaling.
  • the embodiment of the present invention proposes that only the RAN-Node1 receives the paging signaling and then sends the paging signaling, because the paging signaling is paging the UE1, and the UE1 is located in the cell 1.
  • the RAN-Node1 serves the cell 1, so it is proposed that the RAN-Node pre-stores the identity of the UE, and after receiving the paging signaling, the RAN-Node compares the identifier of the user equipment included in the paging signaling with the identifier stored by itself. Similarly, the RAN-Node sends the paging signal again; if it is different, the RAN-Node does not do any processing, or discards the paging signaling.
  • UE1 is located in cell 1, and RAN-Node1 is serving cell 1, so RAN-Node1
  • the identity of the UE1 is stored, and the RAN-Node2 and the RAN-Node3 do not store the identity of the UE1, and after the RAN-Node1, the RAN-Node2, and the RAN-Node3 receive the paging signaling, since the RAN-Node2 and the RAN-Node3 do not store the UE1 Identification, so RAN-Node2 and RAN-Node3 do not need to send paging signaling.
  • the RAN-Node1 stores the identifier of the UE1, so after receiving the paging signaling, the RAN-Node1 sends the paging signaling to the cell it serves: cell 1, cell 2, and cell 3, so that UE1 located in cell 1 It will receive paging signaling and respond to paging signaling.
  • the RAN-Node1 after the RAN-Node1, the RAN-Node2, and the RAN-Node3 receive the paging signaling, the RAN-Node2 and the RAN-Node3 need not send the paging signaling, only The RAN-Node 1 needs to resend the paging signaling, thus reducing the paging signaling overhead.
  • FIG. 2 is a flowchart of a paging method according to an embodiment of the present invention, where the method mainly includes the following steps:
  • the first radio access node receives the paging signaling sent by the core network, where the paging signaling includes an identifier of a paging area and a user equipment, where the paging area in the paging signaling includes at least a wireless network. a paging area allocated by the first wireless access node.
  • the first radio access node determines that the identifier of the user equipment in the paging signaling is an identifier pre-stored by the radio access node.
  • the first wireless access node sends the paging signaling in a paging area allocated by the wireless network to the first wireless access node.
  • the above paging area is a TA, a location area, or an area for identifying a paging function of the user equipment.
  • Each wireless access node corresponds to a paging area, which is allocated to the wireless access node by the wireless network.
  • the identifier of the user equipment in the paging signaling indicating that the core network is paging for the user equipment having the identifier.
  • the paging area in the paging signaling which indicates that the core network sends paging signaling in the paging area.
  • the paging area included in the paging signaling includes at least a paging area allocated by the wireless network to the first wireless access node, and one possible situation is: the paging signaling includes the homing
  • the calling area is equal to the paging area allocated by the wireless network to the first wireless access node, if the wireless network is The paging area allocated by the first radio access node is equal to the paging area in the paging signaling, and the core network sends the paging signaling to the first radio access node, and the first radio access node performs step S201 to Step S203; if the wireless network is a paging area allocated by multiple wireless access nodes including the first wireless access point, and the paging areas are combined to be equal to the paging area in the paging signaling, the core network will The paging signaling is sent to a plurality of wireless access nodes, including the first wireless access point, and each of the plurality of wireless access nodes, including the first
  • the paging area included in the paging signaling includes a paging area allocated by the wireless network to the first wireless access node, that is, the paging signal includes a paging area larger than the wireless network.
  • the paging area allocated by the first radio access node is similar to the foregoing case and will not be described in detail.
  • step S202 Since the first radio access node compares the identifier of the user equipment in the paging signaling with the pre-stored identifier of the first radio access node in step S202, the following steps may be performed before step 202:
  • the first wireless access node stores an identifier of the user equipment in advance.
  • the identifier of the user equipment may be: IMSI (Chinese: International Mobile Subscriber Identity; English: International Mobile Subscriber Identity), GUTI (Chinese: Globally Unique Temporary Identifier, English: Globally Unique Temporary Identifier), S-TMSI (Chinese: SAE Temporary) User ID; English: SAE Temporary Mobile Subscriber Identity).
  • Table 1 is a list of information stored by each node in the user equipment in the embodiment of the present invention.
  • Table 1 List of information of each network device storing user equipment
  • the information of the UE is stored only in the MME (corresponding to the CN), and the RAN-Node does not store the information of the UE.
  • the information of the RAN-Node is stored in the UE.
  • the first wireless access node stores the identifiers of the user equipments in the following application scenarios:
  • the first radio access node receives the location signaling sent by the user equipment, where the location signaling indicates that the user equipment enters the first cell, and the radio access node where the first cell is located is the first Wireless access node;
  • the first wireless access node stores information of the user equipment, where the information of the user equipment includes at least an identifier of the user equipment.
  • This application scenario is applicable to when a user equipment enters a cell, and the wireless access node where the cell is located records the information of the user equipment.
  • the user equipment carries the indication information (that is, location signaling) to the first cell by using control plane signaling or user plane data, because the wireless access node where the first cell is located
  • the first wireless access node records the identity of the user equipment.
  • the cell information of the cell where the user equipment is located or the tracking area information of the tracking area where the user equipment is located may also be recorded.
  • the cell is located
  • the RAN-Node refers to a RAN-Node serving a cell.
  • the first radio access node receives the data transmission initiated by the user equipment in the third cell, where the radio access node where the third cell is located is the first radio access node;
  • the first wireless access node stores information of the user equipment, where the information of the user equipment includes at least an identifier of the user equipment.
  • This application scenario is applicable to when a user equipment initiates data transmission in a cell, and the wireless access node where the cell is located records the information of the user equipment.
  • the cell may be a cell in which the user equipment itself is located, or may be a new cell in which the user equipment moves after moving across the cell, and the new cell is different from the old cell in which the user equipment is located before the cell is moved.
  • the identifier of the user equipment is recorded.
  • the cell information of the cell where the user equipment is located or the tracking area information of the tracking area where the user equipment is located may also be recorded.
  • the first application scenario may exist. That is, although the user equipment enters a cell, the user equipment does not initiate data transmission. It is also possible to have both the foregoing first application scenario and the foregoing second application scenario, that is, when the user enters a cell and initiates data transmission, the wireless access node where the cell is located is separately recorded in two application scenarios. The information of the user equipment may exist at the same time, and the information of the user equipment recorded in the second application scenario may be overwritten by the information of the user equipment recorded in the first application scenario.
  • the first radio access node periodically detects a predetermined signal sent by the user equipment, where the predetermined signal indicates that the user equipment is located in a paging area allocated by the wireless network to the first radio access node;
  • the first radio access node stores information of the user equipment, where the information of the user equipment at least includes the user equipment Logo.
  • the predetermined signal may be a newly defined physical layer signal.
  • the first wireless access node may determine whether the user equipment is in the wireless network by detecting a predetermined signal sent by the user equipment. Within the paging area assigned to it. If the first wireless access node detects the predetermined signal sent by the user equipment, it indicates that the user equipment records the identity of the user equipment in the paging area allocated by the wireless network.
  • the cell information of the cell where the user equipment is located or the tracking area information of the tracking area where the user equipment is located may also be recorded.
  • the predetermined signal can be periodically transmitted to reduce the power consumed by the user equipment.
  • the foregoing two application scenarios are information that the user equipment triggers the first wireless access node to record the user equipment.
  • the first wireless access node actively detects whether the information of the user equipment should be recorded.
  • the user equipment periodically sends a predetermined signal, and the wireless access node actively detects the predetermined signal sent by the user equipment. If the predetermined signal sent by the user equipment is detected, the information of the user equipment is recorded; otherwise, the information of the user equipment is not recorded.
  • the first wireless access node can still record the information of the user equipment through the third application scenario.
  • step 202 is performed.
  • the first wireless access node After receiving the paging signaling sent by the core network, the first wireless access node determines whether the identifier of the user equipment is the same as the identifier previously stored by the first wireless access node, and if yes, performing step 203, the first wireless access node The paging signal is sent in the paging area allocated by the wireless network, and the user equipment responds after receiving the paging signaling; if not, no processing is performed, or the received paging signaling is directly discarded.
  • step 203 in addition to recording the identifier of the user equipment, the first radio access node records the identifier of the cell where the user equipment is located, or the identifier of the tracking area TA where the user equipment is located, so in order to further reduce the paging message
  • step 203 can be:
  • the first radio access node sends the paging signaling in a tracking area TA where the user equipment is located.
  • the first radio access node sends the paging signaling in the cell where the user equipment is located or in the TA where the user equipment is located, when the identifier of the user equipment in the paging signaling is the same as the identifier of the user equipment.
  • the range of transmitting paging signaling is further reduced compared to the transmission of paging signaling in the paging area allocated by the wireless network, and therefore, the overhead of paging signaling is further reduced.
  • the triggering of paging comes from the CN.
  • the CN needs to page UE1, it sends paging signaling to all RAN-Nodes corresponding to the TAC listed in the TA list of UE1, and the paging signaling includes the identifier of UE1. All RAN-Nodes that receive the paging signaling transmit the paging signaling in the respective serving cell. If the UE1 moves to the new cell, and the TAC of the TA corresponding to the new cell is no longer in the TA list of the UE1, the UE1 triggers the TAU, and the CN allocates a new TA list for the UE1, and the new TA list includes the new cell. Corresponding TA TAC.
  • the CN needs to resend the paging signaling to all the RAN-Nodes corresponding to the TAC listed in the new TA list of the UE1, otherwise the CN will not page the UE1.
  • the wireless access node where the original cell is located has been recorded in the wireless network because the information of the user equipment has been recorded.
  • the paging signal is sent in the paging area, but in fact, the user equipment has moved to the new cell, and the wireless access node where the original cell is located transmits the paging signaling even in the paging area allocated by the wireless network. It is not possible to page to the user equipment. Therefore, in the embodiment of the present invention, if the UE moves in a different cell, the wireless access node updates or deletes the information of the recorded user equipment. Specifically, the following implementation methods are included:
  • the wireless access node where the second cell is located is a second wireless access node
  • the second radio access node is the same as the first radio access node, and the information about the user equipment that is stored by the first radio access node further includes an identifier of a cell where the user equipment is located or The tracking area TA where the user equipment is located, the first wireless access node performs, for the stored information of the user equipment, the identifier of the cell where the user equipment is located or the identifier of the TA where the user equipment is located.
  • the first radio access node deletes information about the user equipment that has been stored by the first radio access node.
  • the user equipment passes the control plane signaling or the user plane.
  • the data carries the indication information (that is, the location update signaling) to the second cell, and the second wireless access node where the second cell is located records the identifier of the user equipment.
  • the cell information of the cell where the user equipment is located or the tracking area information of the tracking area where the user equipment is located may also be recorded.
  • the second radio access node may not need to record the identifier of the user equipment and the cell information of the cell where the user equipment is located or the tracking area information of the tracking area where the user equipment is located.
  • the first wireless access node updates the identifier of the recorded user equipment and the cell information of the cell where the user equipment is located or the tracking area information of the tracking area where the user equipment is located, and the cell information of the cell where the user equipment is located is The information of the first cell is updated to the information of the second cell, and if the first cell and the second cell belong to the same TA, the TAC of the TA where the user equipment is located is not updated, otherwise the tracking of the tracking area where the user equipment is located needs to be updated.
  • the area information since the first wireless access node has recorded the identity of the user equipment, it is not necessary to record the identity of the user equipment again.
  • the second wireless access node If the second wireless access node is different from the first wireless access node, the second wireless access node notifies the first wireless access node to delete the information of the user equipment that is stored by the first wireless access node, where the first wireless After receiving the notification, the access node clears the information of the stored user equipment to prevent the first radio access node from receiving the paging signaling for paging the user equipment sent by the core network. Then, the paging signaling is sent to the paging area allocated by the wireless network, and obviously the user equipment has moved to the second cell at this time, and the paging signaling sent by the first wireless access node is wasted.
  • the third cell is a cell in which the user equipment moves from the fourth cell, and the wireless access node where the fourth cell is located is a fourth wireless access node;
  • the fourth radio access node is the same as the first radio access node, and the information about the user equipment that is stored by the first radio access node further includes an identifier of a cell where the user equipment is located or And the first wireless access node updates the identifier of the cell where the user equipment is located or the identifier of the TA where the user equipment is located in the information about the user equipment that is stored by the user equipment;
  • the first radio access node notifies the fourth radio access node that the fourth radio access node has stored The information of the user equipment is deleted.
  • the core network determines the first wireless access node and the data transmission Whether the four wireless access nodes are the same.
  • the first radio access node identifies the recorded user equipment and the cell information of the cell where the user equipment is located or the tracking area of the tracking area where the user equipment is located.
  • the information is updated, and the cell information of the cell where the user equipment is located is updated from the information of the first cell to the information of the second cell, and if the first cell and the second cell belong to the same TA, the TA of the user equipment is not updated.
  • the TAC needs to update the tracking area information of the tracking area where the user equipment is located. Since the first wireless access node has recorded the identifier of the user equipment, it is not necessary to record the identifier of the user equipment again.
  • the first wireless access node notifies the fourth wireless access node to delete the information of the user equipment that is stored by the fourth wireless access node.
  • the information of the stored user equipment is cleared to prevent the fourth radio access node from receiving the paging signaling for paging the user equipment sent by the core network.
  • the paging signaling is sent to the paging area allocated by the wireless network, and obviously the user equipment has moved to the third cell at this time, and the paging signaling sent by the fourth wireless access node is wasted.
  • the fourth wireless access node stores the information of the user equipment because the cell in which the user equipment is located is the fourth cell, and correspondingly, the fourth wireless access node where the fourth cell is located stores the information of the user equipment. .
  • the first wireless access node does not detect the predetermined signal sent by the user equipment at a second moment, the first wireless access node has stored the first wireless access node The information of the user device is deleted.
  • the first wireless access node clears the information of the user equipment to prevent the first wireless access node from being After receiving the paging signaling sent by the core network for paging the user equipment, sending the paging signaling to the paging area allocated by the wireless network, obviously the user equipment has moved to the new cell at this time, and The radio access node where the new cell is located is different from the first radio access ground, and the paging signaling sent by the first radio access node is wasted.
  • the wireless access node stores the identifier of the user equipment in advance. After the wireless access node receives the paging signaling sent by the core network, the wireless access node determines the identifier of the user equipment included in the paging signaling. Whether the pre-stored identifiers are the same. If they are the same, the wireless access point sends paging signaling in the paging area allocated by the wireless network. If it is different, no processing is performed, or the received paging is directly discarded. Signaling. Therefore, although the core network sends paging signaling to multiple wireless access points, not every wireless access point continues to forward paging signaling, and only the user equipment included in the paging signaling is pre-stored. The identified wireless access point forwards the paging signaling within the paging area allocated by the wireless network, thereby reducing the paging signaling overhead.
  • the radio access node sends the paging signaling in the cell where the user equipment is located or sends the paging in the TA where the user equipment is located when determining that the identifier of the user equipment in the paging signaling is the same as the identifier of the user equipment.
  • the range of transmitting paging signaling is further reduced compared to the transmission of paging signaling in the paging area allocated by the wireless network, and therefore, the overhead of paging signaling is further reduced.
  • the CN will search for In the embodiment of the present invention, it is proposed that if the UE moves in a different cell, the RAN-Node updates the information of the recorded user equipment, and the CN does not need to re-post the paging signaling to the user equipment. All RAN-Nodes corresponding to the TAC listed in the new TA list save the overhead of paging signaling.
  • FIG. 3 is a functional block diagram of a paging apparatus according to an embodiment of the present invention.
  • the paging device includes:
  • the receiving unit 31 is configured to receive paging signaling sent by the core network, where the paging signaling includes an identifier of a paging area and a user equipment, where the paging area in the paging signaling includes at least a wireless network a paging area allocated by the first wireless access node;
  • a determining unit 32 configured to determine that the identifier of the user equipment in the paging signaling is an identifier pre-stored by the first wireless access node;
  • the sending unit 33 is configured to send the paging signaling in a paging area allocated by the wireless network to the first wireless access node.
  • the receiving unit 31 is further configured to:
  • the device also includes a storage unit for:
  • the receiving unit 31 is further configured to:
  • the wireless access node is a second wireless access node
  • the device further includes a first update unit or a first deletion unit;
  • the first update unit is configured to: if the second wireless access node is the same as the first wireless access node, and the information about the user equipment that is stored by the first wireless access node further includes The identifier of the cell where the user equipment is located or the tracking area TA where the user equipment is located, and the identifier of the cell where the user equipment is located or the identifier of the TA where the user equipment is located in the information of the user equipment that has been stored Update;
  • the first deleting unit is configured to: if the second wireless access node is different from the first wireless access node, delete information about the user equipment that is stored by the first wireless access node .
  • the receiving unit 31 is further configured to:
  • the storage unit is configured to: store information of the user equipment, where the information of the user equipment includes at least an identifier of the user equipment.
  • the third cell is a cell where the user equipment moves from the fourth cell, and the wireless access node where the fourth cell is located is a fourth wireless access node;
  • the device further includes a second update unit or a second deletion unit;
  • the second update unit is configured to: if the fourth radio access node is the same as the first radio access node, and the information about the user equipment that is stored by the first radio access node further includes The identifier of the cell where the user equipment is located or the TA where the user equipment is located is updated, and the identifier of the cell where the user equipment is located or the identifier of the TA where the user equipment is located is updated in the stored information of the user equipment. ;
  • the second deleting unit is configured to notify the fourth wireless access node that the fourth wireless access node has been stored in the fourth wireless access node if the fourth wireless access node is different from the first wireless access node.
  • the information of the user equipment is deleted.
  • the device further includes a detecting unit, configured to:
  • the storage unit is configured to: if the first wireless access node detects the predetermined signal at a first moment, store information of the user equipment, where the information of the user equipment at least includes an identifier of the user equipment .
  • the device further includes a third deleting unit, configured to:
  • the first radio access node does not detect the predetermined signal sent by the user equipment at the second moment, deleting information about the user equipment that has been stored by the first radio access node.
  • the information about the user equipment further includes: an identifier of a cell where the user equipment is located, or an identifier of a tracking area TA where the user equipment is located, where the sending unit 33 is configured to:
  • the embodiment of the present invention further provides a wireless access node, which may be the foregoing first wireless access node.
  • a wireless access node which may be the foregoing first wireless access node.
  • FIG. 4 is a wireless access provided by an embodiment of the present invention. Node hardware structure diagram.
  • the first wireless access node includes:
  • the receiver 402 is configured to receive paging signaling sent by the core network, where the paging signaling includes an identifier of a paging area and a user equipment, where the paging area in the paging signaling includes at least a wireless network a paging area allocated by the first wireless access node;
  • the processor 401 is configured to determine that the identifier of the user equipment in the paging signaling is an identifier pre-stored by the first wireless access node;
  • the transmitter 403 is configured to send the paging signaling in a paging area allocated by the wireless network to the first wireless access node.
  • the first radio access node receives the location signaling sent by the user equipment, where the location signaling indicates that the user equipment enters the first cell, and the radio access node where the first cell is located is the first Wireless access node;
  • the first wireless access node stores information of the user equipment, where the information of the user equipment includes at least an identifier of the user equipment.
  • the receiver 402 is configured to receive location update signaling sent by the user equipment, where the location update signaling indicates that the user equipment moves from the first cell to be different from the first cell. a second cell, where the second access node is a second wireless access node;
  • the processor 401 is configured to:
  • the second radio access node is the same as the first radio access node, and the information about the user equipment that is stored by the first radio access node further includes an identifier of a cell where the user equipment is located or The tracking area TA where the user equipment is located updates the identifier of the cell in which the user equipment is located or the identifier of the TA where the user equipment is located in the information of the user equipment that is stored;
  • the access node is different from the first wireless access node, and the information about the user equipment that has been stored by the first wireless access node is deleted.
  • the receiver 402 is configured to:
  • the first wireless access node further includes a memory 404, configured to:
  • the third cell is a cell where the user equipment moves from the fourth cell, and the wireless access node where the fourth cell is located is a fourth wireless access node;
  • the processor 401 is configured to:
  • the fourth radio access node is the same as the first radio access node, and the information about the user equipment that is stored by the first radio access node further includes an identifier of a cell where the user equipment is located or The TA where the user equipment is located updates the identifier of the cell in which the user equipment is located or the identifier of the TA where the user equipment is located in the information of the user equipment that is stored; The node is different from the first radio access node, and the fourth radio access node is notified to delete the information about the user equipment that is stored by the fourth radio access node.
  • the processor 401 is configured to:
  • the processor 401 is configured to:
  • the first wireless access node does not detect the predetermined signal sent by the user equipment at a second moment, the first wireless access node has stored the first wireless access node The information of the user device is deleted.
  • the information about the user equipment further includes: an identifier of a cell where the user equipment is located, or an identifier of a tracking area TA where the user equipment is located, where the transmitter 403 is configured to:
  • bus 400 can include any number of interconnected buses and bridges, and bus 400 will include one or more processors and memory 404 represented by processor 401.
  • the various circuits of the memory are linked together.
  • the bus 400 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art and, therefore, will not be further described herein.
  • Bus interface 405 provides an interface between bus 400 and receiver 402 and transmitter 403.
  • Receiver 402 and send The 403 may be the same component, a transceiver, providing means for communicating with various other devices on a transmission medium.
  • Processor 401 is responsible for managing bus 400 and normal processing, while memory 404 can be used to store data used by processor 401 in performing operations.
  • FIG. 5 is a first schematic diagram of a paging system according to an embodiment of the present invention.
  • the paging system includes:
  • the core network 51 is configured to send paging signaling, where the paging signaling includes an identifier of a paging area and a user equipment, where the paging area in the paging signaling includes at least a wireless network as a first wireless access node. Assigned paging area;
  • the first radio access node 52 is connected to the core network, and configured to receive the paging signaling, and determine that the identifier of the user equipment in the paging signaling is the first radio access node in advance.
  • the stored identifier; the paging signaling is sent in a paging area allocated by the wireless network for the first wireless access node.
  • the paging system further includes:
  • the user equipment 53 is connected to the first radio access node, and is configured to send location signaling to the first radio access node when entering the first cell, where the radio access node where the first cell is located is Said first wireless access node;
  • the first wireless access node is configured to store information of the user equipment, and the information of the user equipment includes at least an identifier of the user equipment.
  • the paging system further includes:
  • a second radio access node 54 where the radio access node where the second cell is located is the second radio access node, if the second radio access node is different from the first radio access node, Notifying the first wireless access node of the user equipment that has been stored by the first wireless access node
  • the information is deleted, and the information of the user equipment is stored, where the information of the user equipment includes at least the identifier of the user equipment;
  • the user equipment is configured to: when moving from the first cell to the second cell different from the first cell, send location update signaling to the first wireless access node;
  • the first wireless access node is configured to: receive the location update signaling; if the second wireless access node is the same as the first wireless access node, and the first wireless access node has been stored
  • the information of the user equipment further includes the identifier of the cell where the user equipment is located or the tracking area TA where the user equipment is located, and the identifier of the cell where the user equipment is located in the information about the stored user equipment. Or the identifier of the TA where the user equipment is located is updated; if the second radio access node is different from the first radio access node, the first radio access node is configured to the first radio access
  • the information of the user equipment that has been stored by the node is deleted.
  • the user equipment in the paging system is further configured to:
  • the first radio access node is further configured to: receive data transmission initiated by the user equipment in the third cell, and store information of the user equipment, where information of the user equipment includes at least identifier of the user equipment .
  • the paging system further includes:
  • a fourth radio access node 55 where the third cell is a cell in which the user equipment moves from the fourth cell, and the radio access node where the fourth cell is located is the fourth radio access node,
  • the information of the user equipment is stored, and the information of the user equipment includes at least the identifier of the user equipment; if the fourth wireless access node is And deleting, by the first wireless access node, information about the user equipment that has been stored by the fourth wireless access node;
  • the core network is configured to determine whether the first wireless access node and the fourth wireless access node that are transmitted by the data transmission are the same;
  • the first wireless access node is configured to: if the fourth wireless access node and the first wireless If the access node is the same, and the information of the user equipment that is stored by the first radio access node further includes the identifier of the cell where the user equipment is located or the TA where the user equipment is located, the first wireless connection
  • the ingress node updates the identifier of the cell where the user equipment is located or the identifier of the TA where the user equipment is located in the information about the stored user equipment; if the fourth wireless access node and the first wireless If the access node is different, the first radio access node notifies the fourth radio access node to delete information about the user equipment that has been stored by the fourth radio access node.
  • the user equipment in the paging system is further configured to:
  • the first wireless access node is configured to: detect the predetermined signal; if the first wireless access node detects the predetermined signal at a first moment, the first wireless access node stores the user Information about the device, the information of the user equipment at least including the identifier of the user equipment. And if the first wireless access node does not detect the predetermined signal sent by the user equipment at a second moment, the first wireless access node has stored the first wireless access node The information of the user device is deleted.
  • the first wireless access point in the paging system is further configured to:
  • FIG. 6 is a second schematic diagram of a paging system according to an embodiment of the present invention.
  • the paging system includes:
  • the core network 61 is configured to send paging signaling, where the paging signaling includes an identifier of a paging area and a user equipment, where the paging area in the paging signaling includes at least a wireless network as a first wireless access node. Assigned paging area;
  • the first radio access node 62 is connected to the core network, and is configured to receive the paging signaling, and determine that the identifier of the user equipment in the paging signaling is the first radio access node in advance.
  • the stored identifier; the paging signaling is sent in a paging area allocated by the wireless network for the first wireless access node.
  • the first wireless access node is configured to:
  • the paging system further includes:
  • a second radio access node 63 where the radio access node where the second cell is located is the second radio access node, if the second radio access node is different from the first radio access node, Notifying the first wireless access node to delete information about the user equipment that has been stored by the first wireless access node, and storing information of the user equipment, where the information of the user equipment includes at least the user Identification of the equipment;
  • the first radio access node is configured to: receive location update signaling sent by the user equipment, where the location update signaling indicates that the user equipment moves from the first cell to be different from the first cell a second cell; if the second radio access node is the same as the first radio access node, and the information about the user equipment that is stored by the first radio access node further includes the user equipment The identifier of the cell or the tracking area TA where the user equipment is located, and the identifier of the cell where the user equipment is located or the identifier of the TA where the user equipment is located is updated in the information of the user equipment that has been stored; The second wireless access node is different from the first wireless access node, and the first wireless access node deletes information about the user equipment that has been stored by the first wireless access node.
  • the first radio access node is further configured to: receive data transmission initiated by the user equipment in a third cell, where the radio access node where the third cell is located is the first radio access node Storing information of the user equipment, where the information of the user equipment at least includes the user equipment Logo.
  • the paging system further includes:
  • a fourth radio access node 64 where the third cell is a cell in which the user equipment moves from the fourth cell, and the radio access node where the fourth cell is located is the fourth radio access node,
  • the information of the user equipment is stored, and the information of the user equipment includes at least the identifier of the user equipment; if the fourth wireless access node is And deleting, by the first wireless access node, information about the user equipment that has been stored by the fourth wireless access node;
  • the core network is configured to determine whether the first wireless access node and the fourth wireless access node that are transmitted by the data transmission are the same;
  • the first wireless access node is configured to: if the fourth wireless access node is the same as the first wireless access node, and the information of the user equipment that is stored by the first wireless access node is further And the identifier of the cell where the user equipment is located, or the identifier of the cell where the user equipment is located in the information about the user equipment that is stored by the first wireless access node.
  • the identifier of the TA where the user equipment is located is updated; if the fourth radio access node is different from the first radio access node, the first radio access node notifies the fourth radio access node
  • the information of the user equipment that has been stored by the fourth wireless access node is deleted.
  • the first wireless access node is configured to:
  • the first wireless access node is configured to: detect the predetermined signal; if the first wireless access node detects the predetermined signal at a first moment, the first wireless access node stores the user Information about the device, the information of the user equipment at least including the identifier of the user equipment. And if the first wireless access node does not detect the predetermined signal sent by the user equipment at a second moment, the first wireless access node has stored the first wireless access node The information of the user device is deleted.
  • the first wireless access point in the paging system is further configured to:
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in a block or blocks of a flow or a flow and/or a block diagram of a flowchart Step.
  • the computer program instructions corresponding to the paging method in the embodiment of the present application may be stored on a storage medium such as an optical disk, a hard disk, a USB disk, or the like, and the computer program instructions corresponding to the paging method in the storage medium are the foregoing When a wireless access node reads and is executed, the following steps are included:
  • the first radio access node receives the paging signaling sent by the core network, where the paging signaling includes an identifier of the paging area and the user equipment, where the paging area in the paging signaling includes at least the wireless network a paging area allocated by the first wireless access node;
  • the first wireless access node sends the paging signaling in a paging area allocated by the wireless network to the first wireless access node.
  • the storage medium further stores another computer program instruction, where the other computer program instructions in the step of: determining, by the first wireless access node, that the identifier of the user equipment in the paging signaling is The identifier stored in advance by the first wireless access node is executed before the corresponding computer program instruction is executed, and the execution process includes the following steps:
  • the first radio access node receives the location signaling sent by the user equipment, where the location signaling indicates that the user equipment enters the first cell, and the radio access node where the first cell is located is the first Wireless access node;
  • the first wireless access node stores information of the user equipment, where the information of the user equipment includes at least an identifier of the user equipment.
  • the storage medium further stores other computer program instructions, where the other computer program instructions include the following steps in the process of being executed:
  • the wireless access node where the second cell is located is a second wireless access node
  • the information about the user equipment that is stored by the first radio access node further includes a cell where the user equipment is located
  • the identifier or the tracking area TA where the user equipment is located, the identifier of the cell where the user equipment is located in the information of the user equipment that is stored by the first wireless access node, or the TA where the user equipment is located The logo is updated;
  • the first radio access node deletes information about the user equipment that has been stored by the first radio access node.
  • the storage medium further stores another computer program instruction, where the other computer program instructions in the step of: determining, by the first wireless access node, that the identifier of the user equipment in the paging signaling is The identifier stored in advance by the first wireless access node is executed before the corresponding computer program instruction is executed, and the execution process includes the following steps:
  • the first radio access node receives the data transmission initiated by the user equipment in the third cell, where the radio access node where the third cell is located is the first radio access node;
  • the first wireless access node stores information of the user equipment, where the information of the user equipment includes at least an identifier of the user equipment.
  • the storage medium further stores other computer program instructions, where the other computer program instructions include the following steps in the process of being executed:
  • the third cell is a cell in which the user equipment moves from the fourth cell, and the wireless access node where the fourth cell is located is a fourth wireless access node;
  • the fourth radio access node is the same as the first radio access node, and the information about the user equipment that is stored by the first radio access node further includes an identifier of a cell where the user equipment is located or And the first wireless access node updates the identifier of the cell where the user equipment is located or the identifier of the TA where the user equipment is located in the information about the user equipment that is stored by the user equipment;
  • the first radio access node notifies the fourth radio access node that the fourth radio access node has stored The information of the user equipment is deleted.
  • another computer program instruction is further stored in the storage medium, and the other one
  • the computer program instructions are in the step of: the first wireless access node determines that the identifier of the user equipment in the paging signaling is an identifier pre-stored by the first wireless access node, and the corresponding computer program instruction is executed Executed before, the implementation process includes the following steps:
  • the first radio access node periodically detects a predetermined signal sent by the user equipment, where the predetermined signal indicates that the user equipment is located in a paging area allocated by the wireless network to the first radio access node;
  • the first radio access node stores information of the user equipment, where the information of the user equipment at least includes the user equipment Logo.
  • the storage medium further stores another computer program instruction, where the other computer program instructions are in the step of: storing, by the first wireless access node, the information of the user equipment, and the corresponding computer program instruction is Executed after execution, the implementation process includes the following steps:
  • the first wireless access node does not detect the predetermined signal sent by the user equipment at a second moment, the first wireless access node has stored the first wireless access node The information of the user device is deleted.
  • the information about the user equipment further includes: an identifier of a cell where the user equipment is located, or an identifier of a tracking area TA where the user equipment is located, and a step of storing the wireless medium in the storage medium
  • the ingress node sends the paging signaling in a paging area allocated by the wireless network to the wireless access node, and when the corresponding computer program instruction is executed, the method includes the following steps:
  • the first radio access node sends the paging signaling in a tracking area where the user equipment is located.
  • the wireless access node stores the identifier of the user equipment in advance, and after the wireless access node receives the paging signaling sent by the core network, the wireless access node determines the use of the paging signaling. Whether the identifier of the user equipment is the same as the identifier stored in advance. If they are the same, the wireless access point sends paging signaling in the paging area allocated by the wireless network. If it is different, no processing is performed, or the information is directly discarded. Received paging signaling. Therefore, although the core network sends paging signaling to multiple wireless access points, not every wireless access point continues to forward paging signaling, and only the user equipment included in the paging signaling is pre-stored. The identified wireless access point forwards the paging signaling within the paging area allocated by the wireless network, thereby reducing the paging signaling overhead.

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Abstract

一种寻呼方法及装置，所述寻呼方法包括：第一无线接入节点接收核心网发送的寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为所述第一无线接入节点分配的寻呼区域；所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识；所述第一无线接入节点在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。

Description

一种寻呼方法及装置
本申请要求在2015年09月23日提交中国专利局、申请号为201510612943.4、发明名称为"一种寻呼方法及装置"的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信技术领域，特别涉及一种寻呼方法及装置。
背景技术
在LTE(中文：长期演进；英文：Long Term Evolution)***中，将一片连续覆盖的小区组成的地理区域称为一个TA(中文：跟踪区；英文：Tracking Area)，TA用于对LTE***中的处于空闲状态的UE(中文：用户设备；英文：User Equipment)进行位置管理。一个TA可包含一个或多个小区，一个小区只能属于一个TA。
MME(中文：移动管理实体；英文：Mobility Management Entity)会给UE分配一个TA list(中文：跟踪区列表；英文：Tracking Area List)，TA list上列有多个TAC，表明如果UE移动到的小区属于TA list所列的TAC代表的TA，则UE不需要执行TA更新，反之，如果UE移动到的小区不属于TA list所列的TAC代表的TA，则UE需要执行TAU(中文：跟踪区更新；英文：Tracking Area Update)。
当CN(中文：核心网；英文：Core Network)需要寻呼UE时，MME会给该UE的TA list所列的TAC代表的TA对应的所有eNB(中文：演进型基站；英文：evolved Node B)发送寻呼信令，一个eNB至少对应一个小区，每个eNB会在其对应的小区内发送寻呼信令。
随着UE的数量呈现爆发性增长，寻呼信令的开销增长尤为可观。
发明内容
本发明实施例提供一种寻呼方法及装置，用于解决现有技术中寻呼信令的开销较大的技术问题。
本发明实施例一方面提供了一种寻呼方法，包括：
第一无线接入节点接收核心网发送的寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为所述第一无线接入节点分配的寻呼区域；
所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识；
所述第一无线接入节点在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。
结合第一方面，在第一方面的第一种可能的实现方式中，在所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识之前，还包括：
所述第一无线接入节点接收所述用户设备发送的位置信令，所述位置信令表征所述用户设备进入第一小区，所述第一小区所在的无线接入节点为所述第一无线接入节点；
所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
结合第一方面或第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述方法还包括：
所述第一无线接入节点接收所述用户设备发送的位置更新信令，所述位置更新信令表征所述用户设备从所述第一小区移动到与所述第一小区不同的第二小区，所述第二小区所在的无线接入节点为第二无线接入节点；
若所述第二无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的 标识或所述用户设备所在的跟踪区TA，则所述第一无线接入节点对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
若所述第二无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
结合第一方面，在第一方面的第三种可能的实现方式中，在所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识之前，还包括：
所述第一无线接入节点接收所述用户设备在第三小区发起的数据传输，所述第三小区所在的无线接入节点为所述第一无线接入节点；
所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
结合第一方面的第三种可能的实现方式，在第一方面的第四种可能的实现方式中，所述方法还包括：
所述第三小区是所述用户设备从第四小区移动后所在的小区，所述第四小区所在的无线接入节点为第四无线接入节点；
若所述第四无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的TA，则所述第一无线接入节点对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
若所述第四无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点通知所述第四无线接入节点对所述第四无线接入节点已存储的所述用户设备的信息进行删除。
结合第一方面，在第一方面的第五种可能的实现方式中，在所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入 节点预先存储的标识之前，还包括：
所述第一无线接入节点周期性检测所述用户设备发送的预定信号，所述预定信号表征所述用户设备位于所述无线网络为所述第一无线接入节点分配的寻呼区域；
若所述第一无线接入节点在第一时刻检测到所述预定信号，则所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
结合第一方面的第五种可能的实现方式，在第一方面的第六种可能的实现方式中，在所述第一无线接入节点存储所述用户设备的信息之后，所述方法还包括：
若所述第一无线接入节点在第二时刻未检测到所述用户设备发送的所述预定信号，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
结合第一方面或第一方面的第一种可能的实现方式至第一方面的第六种可能的实现方式中的任一种，在第一方面的第七种可能的实现方式中，所述用户设备的信息还包括：所述用户设备所在的小区的标识，或所述用户设备所在的跟踪区TA的标识，所述第一无线接入节点在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令，包括：
所述第一无线接入节点在所述用户设备所在的小区内发送所述寻呼信令；或
所述第一无线接入节点在所述用户设备所在的跟踪区内发送所述寻呼信令。
本发明实施例第二方面提供了一种寻呼装置，包括：
接收单元，用于接收核心网发送的寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为所述第一无线接入节点分配的寻呼区域；
确定单元，用于确定所述寻呼信令中的所述用户设备的标识为所述第一 无线接入节点预先存储的标识；
发送单元，用于在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。
结合第二方面，在第二方面的第一种可能的实现方式中，所述接收单元还用于：
接收所述用户设备发送的位置信令，所述位置信令表征所述用户设备进入第一小区，所述第一小区所在的无线接入节点为所述第一无线接入节点；
所述装置还包括存储单元，用于：
存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
结合第二方面或第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述接收单元还用于：
接收所述用户设备发送的位置更新信令，所述位置更新信令表征所述用户设备从所述第一小区移动到与所述第一小区不同的第二小区，所述第二小区所在的无线接入节点为第二无线接入节点；
所述装置还包括第一更新单元或第一删除单元；
所述第一更新单元用于：若所述第二无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的跟踪区TA，则对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
所述第一删除单元用于：若所述第二无线接入节点与所述第一无线接入节点不同，则对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
结合第二方面，在第二方面的第三种可能的实现方式中，所述接收单元还用于：
接收所述用户设备在第三小区发起的数据传输，所述第三小区所在的无 线接入节点为所述第一无线接入节点；
所述存储单元用于：存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
结合第二方面的第三种可能的实现方式，在第二方面的第四种可能的实现方式中，所述第三小区是所述用户设备从第四小区移动后所在的小区，所述第四小区所在的无线接入节点为第四无线接入节点；
所述装置还包括第二更新单元或第二删除单元；
所述第二更新单元用于：若所述第四无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的TA，则对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
所述第二删除单元用于：若所述第四无线接入节点与所述第一无线接入节点不同，则通知所述第四无线接入节点对所述第四无线接入节点已存储的所述用户设备的信息进行删除。
结合第二方面，在第二方面的第五种可能的实现方式中，所述装置还包括检测单元，用于：
周期性检测所述用户设备发送的预定信号，所述预定信号表征所述用户设备位于所述无线网络为所述第一无线接入节点分配的寻呼区域；
所述存储单元用于：若所述第一无线接入节点在第一时刻检测到所述预定信号，则存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
结合第二方面的第五种可能的实现方式，在第二方面的第六种可能的实现方式中，所述装置还包括第三删除单元，用于：
若所述第一无线接入节点在第二时刻未检测到所述用户设备发送的所述预定信号，则对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
结合第二方面或第二方面的第一种可能的实现方式至第二方面的第六种可能的实现方式中的任一种，在第二方面的第七种可能的实现方式中，所述用户设备的信息还包括：所述用户设备所在的小区的标识，或所述用户设备所在的跟踪区TA的标识，所述发送单元用于：
在所述用户设备所在的小区内发送所述寻呼信令；或
在所述用户设备所在的跟踪区内发送所述寻呼信令。
本发明实施例中提供的一个或多个技术方案，至少具有如下技术效果或优点：
本发明实施例中，无线接入节点预先存储用户设备的标识，当无线接入节点接收到核心网发送的寻呼信令后，无线接入节点判断寻呼信令包含的用户设备的标识与预先存储的标识是否相同，如果相同，则无线接入点在无线网络为其分配的寻呼区域内发送寻呼信令，如果不同，则不做任何处理，或直接丢弃掉收到的寻呼信令。因此，尽管核心网将寻呼信令发送给多个无线接入点，但并不是每个无线接入点都会继续转发寻呼信令，仅预先存储有寻呼信令中包含的用户设备的标识的无线接入点，才会在无线网络为其分配的寻呼区域内转发寻呼信令，因此，减少了寻呼信令开销。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，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，对于本领域的普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为适用于本发明实施例提供的寻呼方法的***；
图2为本发明实施例提供的一种寻呼方法的流程图；
图3为本发明实施例提供的一种寻呼装置的功能模块图；
图4为本发明实施例提供的一种无线接入节点的硬件结构图；
图5为本发明实施例提供的一种寻呼***的第一种示意图；
图6为本发明实施例提供的一种寻呼***的第二种示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，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、完整地描述，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。
本发明实施例中描述的技术方案可用于LTE网络或5G(中文：第五代；英文：the fifth Generation)移动通信技术网络中。
以下，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解。
1)UE(user equipment，用户设备)，是指向用户提供语音和/或数据连通性的设备，例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该用户设备可以经RAN-Node与核心网进行通信，与RAN-Node交换语音和/或数据。该用户设备可以称为无线终端、移动终端、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、AP(Access Point，接入点)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、或用户装备(User Device)等。例如，可以是移动电话(或称为“蜂窝”电话)，具有移动终端的计算机，便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。例如，PCS(Personal Communication Service，个人通信业务)电话、无绳电话、SIP(会话发起协议)话机、WLL(Wireless Local Loop，无线本地环路)站、PDA(Personal Digital Assistant，个人数字助理)等设备。
2)RAN-Node(中文：无线接入节点；英文：Radio Access Network-Node)，是指将终端接入到无线网络的设备，其在空中接口上通过一个或多个扇区与 终端通信。该无线接入节点例如可以是：eNB(evolved Node B，演进型节点B)、RNC(radio network controller，无线网络控制器)、NB(Node B，节点B)、BSC(Base Station Controller，基站控制器)、BTS(Base Transceiver Station,基站收发台)、家庭基站(例如，Home evolved NodeB，或Home Node B，HNB)、Wifi AP(Access Point，接入点)等。此外，该无线接入设备还可以是BBU(BaseBand Unit，基带单元)。
3)TA(中文：跟踪区；英文：Tracking Area)：一片连续覆盖的小区组成的地理区域称为一个TA。为区分TA，每个TA具有一个TAC。一个TA可包含一个或多个小区，一个小区只能属于一个TA，也就是说，一个小区只能对应一个TAC，MME会向小区广播***消息，告知小区对应的TAC。
4)TA list(中文：跟踪区列表；英文：Tracking Area List)：包含至少一个TAC，MME会给UE分配一个TA list，TA list上列有多个TAC，表明如果UE移动到的小区属于TA list所列的TAC代表的TA，则UE不需要执行TA更新，反之，如果UE移动到的小区不属于TA list所列的TAC代表的TA，则UE需要执行TAU，MME记录UE新的TA list。
5)RAN-Node与小区的关系：RAN-Node下包含至少一个小区，也就是说RAN-Node服务至少一个小区。
6)RAN-Node与TA list的关系：TA list上列有多个TAC，具有每个TAC的TA由一片连续覆盖的小区组成，而RAN-Node下包含至少一个小区，所以相当于TA list上列有多个RAN-Node，每个RAN-Node服务的小区属于TA list所列的TAC代表的TA。
7)本申请中的术语“***”和“网络”可被互换使用。“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，字符“/”，如无特殊说明，一般表示前后关联对象是一种“或”的关系。
请参考图1，图1为适用于本发明实施例提供的寻呼方法的***。包括： 核心网、无线接入节点、用户设备。如果该***是LTE***，则CN对应MME，RAN-Node对应eNB，UE可以是LTE UE；如果该***是5G***，则CN和RAN-Node为不同的节点，其功能在LTE中对应节点上会有所增强或改变，UE是5G UE。
接下来，介绍一下现有的寻呼流程。
寻呼的触发来自于CN。当CN需要寻呼UE1时，发送寻呼信令到UE1的TA list所列的TAC对应的所有RAN-Node，寻呼信令包含UE1的标识。收到该寻呼信令的所有RAN-Node在各自的服务的小区内发送该寻呼信令。
假设TA list所列的TAC对应的所有RAN-Node包括：RAN-Node1、RAN-Node2、和RAN-Node3，则CN向RAN-Node1、RAN-Node2、和RAN-Node3均发送寻呼指令。假设RAN-Node1服务小区1、小区2和小区3，RAN-Node2服务小区4和小区5，RAN-Node3服务小区6，则小区1-6均会收到寻呼信令，当然，小区1-6对应的TAC在TA list上。
考虑到UE1仅位于小区1-6中的一个小区中，不可能同时位于小区1-6，例如：UE1位于小区1，则小区2-6内收到的寻呼信令实际上是不必要的。进一步的，小区4-5收到的寻呼信令是由RAN-Node2发送的，小区6收到的寻呼信令是由RAN-Node3发送的，因此，RAN-Node2和RAN-Node3收到寻呼信令后无需再发送寻呼信令。而RAN-Node1收到寻呼信令后再发送寻呼信令是必要的，否则位于小区1的UE1就不会收到寻呼信令，进而也就不会对寻呼信令进行响应。
为减少不必要的寻呼信令开销，本发明实施例提出仅RAN-Node1收到寻呼信令后再发送寻呼信令，因为寻呼信令是寻呼UE1的，UE1位于小区1，而RAN-Node1服务小区1，所以提出RAN-Node预先存储UE的标识，RAN-Node收到寻呼信令后，将寻呼信令包含的用户设备的标识与自身存储的标识相比较，如果相同，则RAN-Node再发送寻呼信令；如果不同，则RAN-Node不做任何处理，或者丢弃寻呼信令。
例如：UE1位于小区1，而RAN-Node1服务小区1，所以RAN-Node1 存储UE1的标识，而RAN-Node2和RAN-Node3不存储UE1的标识，RAN-Node1、RAN-Node2和RAN-Node3收到寻呼信令后，由于RAN-Node2和RAN-Node3未存储UE1的标识，所以RAN-Node2和RAN-Node3无需再发送寻呼信令。而RAN-Node1存储有UE1的标识，所以RAN-Node1收到寻呼信令后再发送寻呼信令至其服务的小区：小区1、小区2和小区3，这样，位于小区1的UE1就会收到寻呼信令，进而对寻呼信令进行响应。相比于现有技术而言，本发明实施例中，RAN-Node1、RAN-Node2和RAN-Node3收到寻呼信令后，RAN-Node2和RAN-Node3无需再发送寻呼信令，仅RAN-Node1需要再发送寻呼信令，因此，减小了寻呼信令开销。
下面结合说明书附图对本发明实施例作进一步详细描述。
请参见图2，图2为本发明实施例提供的一种寻呼方法的流程图，该方法主要包括如下步骤：
S201：第一无线接入节点接收核心网发送的寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为所述第一无线接入节点分配的寻呼区域。
S202：所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述无线接入节点预先存储的标识。
S203：所述第一无线接入节点在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。
以上寻呼区域为TA、位置区域或用于标识用户设备寻呼功能的区域。每个无线接入节点，都会对应一个寻呼区域，是无线网络分配给无线接入节点的。寻呼信令中的用户设备的标识，表征核心网是针对具有该标识的用户设备进行寻呼的。寻呼信令中的寻呼区域，表征核心网是在该寻呼区域内发送寻呼信令的。
以第一无线接入点为例，寻呼信令包含的寻呼区域至少包括无线网络为第一无线接入节点分配的寻呼区域，一种可能的情况是：寻呼信令包含的寻呼区域等于无线网络为第一无线接入节点分配的寻呼区域，如果无线网络为 第一无线接入节点分配的寻呼区域等于寻呼信令中的寻呼区域，则核心网将该寻呼信令发送给第一无线接入节点，第一无线接入节点执行步骤S201至步骤S203；如果无线网络为包括第一无线接入点在内的多个无线接入节点分配的寻呼区域，这些寻呼区域组合起来等于寻呼信令中的寻呼区域，则核心网将该寻呼信令发送给包括第一无线接入点在内的多个无线接入节点，包括第一接入点在内的多个无线接入节点中的每个无线接入节点执行步骤S201至步骤S203。另一种可能的情况是：寻呼信令包含的寻呼区域包含无线网络为第一无线接入节点分配的寻呼区域，也就是说，寻呼信令包含的寻呼区域大于无线网络为第一无线接入节点分配的寻呼区域，这种情况与前述情况类似，就不详细说明。
由于步骤S202中第一无线接入节点要将寻呼信令中的用户设备的标识与第一无线接入节点预先存储标识比较，所以在步骤202之前，还可以执行以下步骤：
所述第一无线接入节点预先存储用户设备的标识。用户设备的标识可以是：IMSI(中文：国际移动用户识别码；英文：International Mobile Subscriber Identity)、GUTI(中文：全球唯一临时标识；英文：Globally Unique Temporary Identifier)、S-TMSI(中文：SAE临时用户标识；英文：SAE Temporary Mobile Subscriber Identity)。
请参考表1，表1为本发明实施例中各个节点存储用户设备的信息的列表。
表1各个网络设备存储用户设备的信息的列表
Figure PCTCN2016099720-appb-000001
Figure PCTCN2016099720-appb-000002
现有技术中(章节1.1)，UE的信息仅在MME(对应CN)中存储，RAN-Node不会保存UE的信息，本发明实施例中提出RAN-Node存储UE的信息。
第一无线接入节点存储用户设备的标识具体有以下几种应用场景：
第一种应用场景：
所述第一无线接入节点接收所述用户设备发送的位置信令，所述位置信令表征所述用户设备进入第一小区，所述第一小区所在的无线接入节点为所述第一无线接入节点；
所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
本应用场景适用于用户设备进入一个小区时，该小区所在的无线接入节点记录该用户设备的信息。具体来讲，当用户设备进入第一小区，然后用户设备通过控制面信令或用户面数据，携带指示信息(也即位置信令)给第一小区，由于第一小区所在的无线接入节点为第一无线接入节点，所以第一无线接入节点记录用户设备的标识。可选地，还可以记录用户设备所在的小区的小区信息或用户设备所在的跟踪区的跟踪区信息。本文中，小区所在的 RAN-Node是指为小区提供服务的RAN-Node。
第二种应用场景：
所述第一无线接入节点接收所述用户设备在第三小区发起的数据传输，所述第三小区所在的无线接入节点为所述第一无线接入节点；
所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
本应用场景适用于用户设备在一个小区发起数据传输时，该小区所在的无线接入节点记录该用户设备的信息。该小区可以是用户设备本身所处的小区，也可以是用户设备跨小区移动后所在的新小区，新小区与用户设备跨小区移动前所在的旧小区不同。具体来讲，当用户设备在第三小区发起数据传输时，由于第三小区所在的无线接入点是第一无线接入点，所以记录用户设备的标识。可选地，还可以记录用户设备所在的小区的小区信息或用户设备所在的跟踪区的跟踪区信息。
在实际应用中，可能只存在前述第一种应用场景，即：用户设备虽然进入了一个小区，但是用户设备不发起数据传输。也可能既存在前述第一种应用场景，又存在前述第二种应用场景，也即用户进入了一个小区并且发起了数据传输，则该小区所在的无线接入节点在两种应用场景下分别记录的该用户设备的信息可以同时存在，也可以用第二种应用场景下记录的该用户设备的信息覆盖第一种应用场景下记录的该用户设备的信息。
第三种应用场景：
所述第一无线接入节点周期性检测所述用户设备发送的预定信号，所述预定信号表征所述用户设备位于所述无线网络为所述第一无线接入节点分配的寻呼区域；
若所述第一无线接入节点在第一时刻检测到所述预定信号，则所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
本应用场景适用于无线接入节点主动检测用户设备是否在无线网络为其分配的寻呼区域内。具体来讲，预定信号可以是新定义的物理层信号，对第一无线接入节点来说，第一无线接入节点可以通过检测用户设备发送的预定信号，来判断该用户设备是否在无线网络为其分配的寻呼区域内。如果第一无线接入节点检测到用户设备发送的预定信号，则表明该用户设备在无线网络为其分配的寻呼区域内，则记录该用户设备的标识。可选地，还可以记录该用户设备所在的小区的小区信息或该用户设备所在的跟踪区的跟踪区信息。对于用户设备来说，可以周期性发送预定信号，以降低用户设备消耗的电能。
在实际应用中，前述两种应用场景都是用户设备触发第一无线接入节点记录用户设备的信息，第三种应用场景中，第一无线接入节点主动检测是否应该记录用户设备的信息。用户设备周期性发送预定信号，无线接入节点主动检测用户设备发送的预定信号，如果检测到用户设备发送的预定信号，则记录用户设备的信息，否则，不记录用户设备的信息。即使前述两种应用场景均不可用，即：用户设备虽然进入了一个小区，但是由于用户设备本身的原因，未向第一无线接入节点发送位置更新信令，或者用户设备不发起数据传输，只要用户设备周期性发送预定信号，第一无线接入节点仍可以通过第三种应用场景记录用户设备的信息。
接下来执行步骤202。第一无线接入节点收到核心网发送的寻呼信令后，判断用户设备的标识是否与第一无线接入节点预先存储的标识相同，如果相同则执行步骤203，第一无线接入节点在无线网络为其分配的寻呼区域内发送该寻呼信令，用户设备收到寻呼信令后响应；如果不同，则不做任何处理，或直接丢弃掉收到的寻呼信令。
本发明实施例中，由于第一无线接入节点除记录用户设备的标识外，还记录用户设备所在的小区的标识，或用户设备所在的跟踪区TA的标识，所以为了进一步减小寻呼信令的开销，步骤203可以为：
所述第一无线接入节点在所述用户设备所在的小区内发送所述寻呼信 令；或
所述第一无线接入节点在所述用户设备所在的跟踪区TA内发送所述寻呼信令。
具体来讲，第一无线接入节点在确定寻呼信令中的用户设备的标识与其预先存储的标识相同时，在用户设备所在的小区内发送寻呼信令或者在用户设备所在的TA内发送寻呼信令，相比于在无线网络为其分配的寻呼区域内发送寻呼信令，发送寻呼信令的范围进一步减小，因此，寻呼信令的开销也进一步减小。
在前文中已经讲到，寻呼的触发来自于CN。当CN需要寻呼UE1时，发送寻呼信令到UE1的TA list所列的TAC对应的所有RAN-Node，寻呼信令包含UE1的标识。收到该寻呼信令的所有RAN-Node在各自的服务的小区内发送该寻呼信令。如果UE1移动到新的小区，且新的小区对应的TA的TAC不再UE1的TA list中，则UE1会触发TAU，CN会为UE1分配新的TA list，新的TA list中包括新的小区对应的TA的TAC。这样，由于UE1的TA list发生改变，所以CN需要重新发寻呼信令到UE1的新的TA list所列的TAC对应的所有RAN-Node，否则CN将寻呼不到UE1。
本发明实施例中，为节省寻呼信令的开销，避免用户设备从原小区移动到新小区后，原小区所在的无线接入节点因已记录用户设备的信息，所以在无线网络为其分配的寻呼区域内发送寻呼信令，而实际上，用户设备已经移动到新小区，原小区所在的无线接入节点即使在无线网络为其分配的寻呼区域内发送寻呼信令，也不可能寻呼到用户设备。因此，本发明实施例中提出了如果UE在不同小区移动，则无线接入节点对记录的用户设备的信息进行更新或删除。具体包括以下几种实施方式：
第一种实施方式：
所述第一无线接入节点接收所述用户设备发送的位置更新信令，所述位置更新信令表征所述用户设备从所述第一小区移动到与所述第一小区不同的第二小区，所述第二小区所在的无线接入节点为第二无线接入节点；
若所述第二无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的跟踪区TA，则所述第一无线接入节点对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
若所述第二无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
具体来讲，在经过前述第一种应用场景，第一无线接入节点存储用户设备的信息后，如果用户设备由第一小区移动到第二小区，则用户设备通过控制面信令或用户面数据，携带指示信息(也即位置更新信令)给第二小区，此时第二小区所在的第二无线接入节点记录用户设备的标识。可选地，还可以记录用户设备所在的小区的小区信息或用户设备所在的跟踪区的跟踪区信息。
如果第二无线接入节点与第一无线接入节点相同，则第二无线接入节点可以不必记录用户设备的标识以及用户设备所在的小区的小区信息或用户设备所在的跟踪区的跟踪区信息，而是第一无线接入节点对已记录的用户设备的标识以及用户设备所在的小区的小区信息或用户设备所在的跟踪区的跟踪区信息进行更新，将用户设备所在的小区的小区信息由第一小区的信息更新为第二小区的信息，同时如果第一小区与第二小区对应属于同一个TA，则不用更新用户设备所在的TA的TAC，否则需要更新用户设备所在的跟踪区的跟踪区信息，由于第一无线接入节点已经记录用户设备的标识，所以不必再次记录用户设备的标识。
如果第二无线接入节点与第一无线接入节点不同，则第二无线接入节点通知第一无线接入节点对第一无线接入节点已存储的用户设备的信息进行删除，第一无线接入节点收到通知后，会清除已存储的用户设备的信息，以避免第一无线接入节点在接收到核心网发送的用于寻呼用户设备的寻呼信令 后，将寻呼信令发送到无线网络为其分配的寻呼区域内，显然此时用户设备已移动到第二小区，第一无线接入节点发送的寻呼信令被浪费。
第二种实施方式：
所述第三小区是所述用户设备从第四小区移动后所在的小区，所述第四小区所在的无线接入节点为第四无线接入节点；
若所述第四无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的TA，则所述第一无线接入节点对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
若所述第四无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点通知所述第四无线接入节点对所述第四无线接入节点已存储的所述用户设备的信息进行删除。
具体来讲，在经过前述第二种应用场景，第一无线接入节点存储用户设备的信息后，如果用户设备由第四小区移动到第三小区，且用户设备在第三小区发起数据传输，第三小区所在的无线接入节点为第一无线接入节点，第四小区所在的无线接入节点为第四无线接入节点，则核心网判断数据传输经过的第一无线接入节点与第四无线接入节点是否相同。
如果第四无线接入节点与第一无线接入节点相同，则第一无线接入节点对已记录的用户设备的标识以及用户设备所在的小区的小区信息或用户设备所在的跟踪区的跟踪区信息进行更新，将用户设备所在的小区的小区信息由第一小区的信息更新为第二小区的信息，同时如果第一小区与第二小区对应属于同一个TA，则不用更新用户设备所在的TA的TAC，否则需要更新用户设备所在的跟踪区的跟踪区信息，由于第一无线接入节点已经记录用户设备的标识，所以不必再次记录用户设备的标识。
如果第四无线接入节点与第一无线接入节点不同，则第一无线接入节点通知第四无线接入节点对第四无线接入节点已存储的用户设备的信息进行删 除，第四无线接入节点收到通知后，会清除已存储的用户设备的信息，以避免第四无线接入节点在接收到核心网发送的用于寻呼用户设备的寻呼信令后，将寻呼信令发送到无线网络为其分配的寻呼区域内，显然此时用户设备已移动到第三小区，第四无线接入节点发送的寻呼信令被浪费。其中，第四无线接入节点之所以存储有用户设备的信息，是因为用户设备之前所在的小区是第四小区，相应地，第四小区所在的第四无线接入节点会存储用户设备的信息。
第三种实施方式：
若所述第一无线接入节点在第二时刻未检测到所述用户设备发送的所述预定信号，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
具体来讲，与前述第三种应用场景对应，用户设备在从原小区移动到新的小区之后，如果原小区所在的第一无线接入节点未接收到用户设备发送的预定信号，则说明用户设备移动到新的小区，且新的小区不在无线网络为第一无线接入节点分配的寻呼区域内，则第一无线接入节点清除用户设备的信息，以避免第一无线接入节点在接收到核心网发送的用于寻呼用户设备的寻呼信令后，将寻呼信令发送到无线网络为其分配的寻呼区域内，显然此时用户设备已移动到新的小区，且新的小区所在的无线接入节点与第一无线接入接地那不同，第一无线接入节点发送的寻呼信令被浪费。
本发明实施例中，无线接入节点预先存储用户设备的标识，当无线接入节点接收到核心网发送的寻呼信令后，无线接入节点判断寻呼信令包含的用户设备的标识与预先存储的标识是否相同，如果相同，则无线接入点在无线网络为其分配的寻呼区域内发送寻呼信令，如果不同，则不做任何处理，或直接丢弃掉收到的寻呼信令。因此，尽管核心网将寻呼信令发送给多个无线接入点，但并不是每个无线接入点都会继续转发寻呼信令，仅预先存储有寻呼信令中包含的用户设备的标识的无线接入点，才会在无线网络为其分配的寻呼区域内转发寻呼信令，因此，减少了寻呼信令开销。
进一步的，无线接入节点在确定寻呼信令中的用户设备的标识与其预先存储的标识相同时，在用户设备所在的小区内发送寻呼信令或者在用户设备所在的TA内发送寻呼信令，相比于在无线网络为其分配的寻呼区域内发送寻呼信令，发送寻呼信令的范围进一步减小，因此，寻呼信令的开销也进一步减小。
考虑到用户设备的移动性，在用户设备触发TAU更新后，为避免CN需要重新发寻呼信令到该用户设备的新的TA list所列的TAC对应的所有RAN-Node，否则CN将寻呼不到UE1的情况发生，本发明实施例中，提出了如果UE在不同小区移动，则RAN-Node对记录的用户设备的信息进行更新，CN无需重新发寻呼信令到该用户设备的新的TA list所列的TAC对应的所有RAN-Node，节省了寻呼信令的开销。
基于同一发明构思，本发明实施例提供一种寻呼装置。请参考图3，图3为本发明实施例提供的寻呼装置的功能模块图。图3所示的站点涉及到的术语的含义以及具体实现，可以参考前述图1至图2以及实施例的相关描述。该寻呼装置包括：
接收单元31，用于接收核心网发送的寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为所述第一无线接入节点分配的寻呼区域；
确定单元32，用于确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识；
发送单元33，用于在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。
可选的，所述接收单元31还用于：
接收所述用户设备发送的位置信令，所述位置信令表征所述用户设备进入第一小区，所述第一小区所在的无线接入节点为所述第一无线接入节点；
所述装置还包括存储单元，用于：
存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备 的标识。
可选的，所述接收单元31还用于：
接收所述用户设备发送的位置更新信令，所述位置更新信令表征所述用户设备从所述第一小区移动到与所述第一小区不同的第二小区，所述第二小区所在的无线接入节点为第二无线接入节点；
所述装置还包括第一更新单元或第一删除单元；
所述第一更新单元用于：若所述第二无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的跟踪区TA，则对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
所述第一删除单元用于：若所述第二无线接入节点与所述第一无线接入节点不同，则对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述接收单元31还用于：
接收所述用户设备在第三小区发起的数据传输，所述第三小区所在的无线接入节点为所述第一无线接入节点；
所述存储单元用于：存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述第三小区是所述用户设备从第四小区移动后所在的小区，所述第四小区所在的无线接入节点为第四无线接入节点；
所述装置还包括第二更新单元或第二删除单元；
所述第二更新单元用于：若所述第四无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的TA，则对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
所述第二删除单元用于：若所述第四无线接入节点与所述第一无线接入节点不同，则通知所述第四无线接入节点对所述第四无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述装置还包括检测单元，用于：
周期性检测所述用户设备发送的预定信号，所述预定信号表征所述用户设备位于所述无线网络为所述第一无线接入节点分配的寻呼区域；
所述存储单元用于：若所述第一无线接入节点在第一时刻检测到所述预定信号，则存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述装置还包括第三删除单元，用于：
若所述第一无线接入节点在第二时刻未检测到所述用户设备发送的所述预定信号，则对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述用户设备的信息还包括：所述用户设备所在的小区的标识，或所述用户设备所在的跟踪区TA的标识，所述发送单元33用于：
在所述用户设备所在的小区内发送所述寻呼信令；或
在所述用户设备所在的跟踪区内发送所述寻呼信令。
前述图2实施例中的寻呼方法中的各种变化方式和具体实例同样适用于本实施例的寻呼装置，通过前述对寻呼方法的详细描述，本领域技术人员可以清楚的知道本实施例中寻呼装置的实施方法，所以为了说明书的简洁，在此不再详述。
基于同一发明构思，本发明实施例还提供一种无线接入节点，该无线接入节点可以为前述第一无线接入节点，请参考图4，图4为本发明实施例提供的无线接入节点硬件结构图。第一无线接入节点包括：
接收器402，用于接收核心网发送的寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为所述第一无线接入节点分配的寻呼区域；
处理器401，用于确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识；
发送器403，用于在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。
所述第一无线接入节点接收所述用户设备发送的位置信令，所述位置信令表征所述用户设备进入第一小区，所述第一小区所在的无线接入节点为所述第一无线接入节点；
所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述接收器402用于接收所述用户设备发送的位置更新信令，所述位置更新信令表征所述用户设备从所述第一小区移动到与所述第一小区不同的第二小区，所述第二小区所在的无线接入节点为第二无线接入节点；
所述处理器401，用于：
若所述第二无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的跟踪区TA，则对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；若所述第二无线接入节点与所述第一无线接入节点不同，则对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述接收器402用于：
接收所述用户设备在第三小区发起的数据传输，所述第三小区所在的无线接入节点为所述第一无线接入节点；
所述第一无线接入节点还包括存储器404，用于：
存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述第三小区是所述用户设备从第四小区移动后所在的小区，所述第四小区所在的无线接入节点为第四无线接入节点；
所述处理器401用于：
若所述第四无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的TA，则对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；若所述第四无线接入节点与所述第一无线接入节点不同，则通知所述第四无线接入节点对所述第四无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述处理器401用于：
周期性检测所述用户设备发送的预定信号，所述预定信号表征所述用户设备位于所述无线网络为所述第一无线接入节点分配的寻呼区域；若所述第一无线接入节点在第一时刻检测到所述预定信号，则所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述处理器401用于：
若所述第一无线接入节点在第二时刻未检测到所述用户设备发送的所述预定信号，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述用户设备的信息还包括：所述用户设备所在的小区的标识，或所述用户设备所在的跟踪区TA的标识，所述发送器403用于：
在所述用户设备所在的小区内发送所述寻呼信令；或
在所述用户设备所在的跟踪区内发送所述寻呼信令。
其中，在图4中，总线架构(用总线400来代表)，总线400可以包括任意数量的互联的总线和桥，总线400将包括由处理器401代表的一个或多个处理器和存储器404代表的存储器的各种电路链接在一起。总线400还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口405在总线400和接收器402和发送器403之间提供接口。接收器402和发送 器403可以是同一个元件，即收发机，提供用于在传输介质上与各种其他装置通信的单元。
处理器401负责管理总线400和通常的处理，而存储器404可以被用于存储处理器401在执行操作时所使用的数据。
前述图2实施例中的寻呼方法中的各种变化方式和具体实例同样适用于本实施例的第一无线接入节点，通过前述对寻呼方法的详细描述，本领域技术人员可以清楚的知道本实施例中第一无线接入节点的实施方法，所以为了说明书的简洁，在此不再详述。
基于同一发明构思，本发明实施例还提供一种寻呼***，请参考图5，图5为本发明实施例提供的寻呼***的第一种示意图。寻呼***包括：
核心网51，用于发送寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为第一无线接入节点分配的寻呼区域；
第一无线接入节点52，与所述核心网连接，用于接收所述寻呼信令；确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识；在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。
可选的，所述寻呼***还包括：
用户设备53，与所述第一无线接入节点连接，用于在进入第一小区时向所述第一无线接入节点发送位置信令，所述第一小区所在的无线接入节点为所述第一无线接入节点；
所述第一无线接入节点用于存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述寻呼***还包括：
第二无线接入节点54，第二小区所在的无线接入节点为所述第二无线接入节点，用于若所述第二无线接入节点与所述第一无线接入节点不同，则通知所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的 信息进行删除，并存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识；
所述用户设备用于：在从所述第一小区移动到与所述第一小区不同的所述第二小区时，向所述第一无线接入节点发送位置更新信令；
所述第一无线接入节点用于：接收所述位置更新信令；若所述第二无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的跟踪区TA，则对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；若所述第二无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述寻呼***中的用户设备还用于：
在第三小区发起的数据传输，所述第三小区所在的无线接入节点为所述第一无线接入节点；
所述第一无线接入节点还用于：接收所述用户设备在所述第三小区发起的数据传输；存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述寻呼***还包括：
第四无线接入节点55，所述第三小区是所述用户设备从第四小区移动后所在的小区，所述第四小区所在的无线接入节点为所述第四无线接入节点，用于当所述用户设备所在的小区为所述第四小区时，存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识；若所述第四无线接入节点与所述第一无线接入节点不同，则对所述第四无线接入节点已存储的所述用户设备的信息进行删除；
所述核心网用于判断所述数据传输所经过的所述第一无线接入节点与所述第四无线接入节点是否相同；
所述第一无线接入节点用于：若所述第四无线接入节点与所述第一无线 接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的TA，则所述第一无线接入节点对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；若所述第四无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点通知所述第四无线接入节点对所述第四无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述寻呼***中的用户设备还用于：
周期性向所述第一无线接入节点发送预定信号，所述预定信号表征所述用户设备位于所述无线网络为所述第一无线接入节点分配的寻呼区域；
所述第一无线接入节点用于：检测所述预定信号；若所述第一无线接入节点在第一时刻检测到所述预定信号，则所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。若所述第一无线接入节点在第二时刻未检测到所述用户设备发送的所述预定信号，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述寻呼***中的第一无线接入点还用于：
在所述用户设备所在的小区内发送所述寻呼信令；或
在所述用户设备所在的跟踪区内发送所述寻呼信令。
前述图2实施例中的寻呼方法中的各种变化方式和具体实例同样适用于本实施例的寻呼***，通过前述对寻呼方法的详细描述，本领域技术人员可以清楚的知道本实施例中寻呼***的实施方法，所以为了说明书的简洁，在此不再详述。
基于同一发明构思，本发明实施例还提供一种寻呼***，请参考图5，图6为本发明实施例提供的寻呼***的第二种示意图。寻呼***包括：
核心网61，用于发送寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为第一无线接入节点分配的寻呼区域；
第一无线接入节点62，与所述核心网连接，用于接收所述寻呼信令；确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识；在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。
可选的，所述第一无线接入节点用于：
接收所述用户设备发送的位置信令，所述位置信令表征所述用户设备进入第一小区，所述第一小区所在的无线接入节点为所述第一无线接入节点；存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述寻呼***还包括：
第二无线接入节点63，第二小区所在的无线接入节点为所述第二无线接入节点，用于若所述第二无线接入节点与所述第一无线接入节点不同，则通知所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除，并存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识；
所述第一无线接入节点用于：接收所述用户设备发送的位置更新信令，所述位置更新信令表征所述用户设备从所述第一小区移动到与所述第一小区不同的第二小区；若所述第二无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的跟踪区TA，则对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；若所述第二无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述第一无线接入节点还用于：接收所述用户设备在第三小区发起的数据传输，所述第三小区所在的无线接入节点为所述第一无线接入节点；存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备 的标识。
可选的，所述寻呼***还包括：
第四无线接入节点64，所述第三小区是所述用户设备从第四小区移动后所在的小区，所述第四小区所在的无线接入节点为所述第四无线接入节点，用于当所述用户设备所在的小区为所述第四小区时，存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识；若所述第四无线接入节点与所述第一无线接入节点不同，则对所述第四无线接入节点已存储的所述用户设备的信息进行删除；
所述核心网用于判断所述数据传输所经过的所述第一无线接入节点与所述第四无线接入节点是否相同；
所述第一无线接入节点用于：若所述第四无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的TA，则所述第一无线接入节点对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；若所述第四无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点通知所述第四无线接入节点对所述第四无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述第一无线接入节点用于：
周期性检测所述用户设备发送的预定信号，所述预定信号表征所述用户设备位于所述无线网络为所述第一无线接入节点分配的寻呼区域；
所述第一无线接入节点用于：检测所述预定信号；若所述第一无线接入节点在第一时刻检测到所述预定信号，则所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。若所述第一无线接入节点在第二时刻未检测到所述用户设备发送的所述预定信号，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述寻呼***中的第一无线接入点还用于：
在所述用户设备所在的小区内发送所述寻呼信令；或
在所述用户设备所在的跟踪区内发送所述寻呼信令。
前述图2实施例中的寻呼方法中的各种变化方式和具体实例同样适用于本实施例的寻呼***，通过前述对寻呼方法的详细描述，本领域技术人员可以清楚的知道本实施例中寻呼***的实施方法，所以为了说明书的简洁，在此不再详述。
本领域内的技术人员应明白，本发明的实施例可提供为方法、***、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步 骤。
具体来讲，本申请实施例中的寻呼方法对应的计算机程序指令可以被存储在光盘，硬盘，U盘等存储介质上，当存储介质中的与寻呼方法对应的计算机程序指令被前述第一无线接入节点读取并被执行时，包括如下步骤：
第一无线接入节点接收核心网发送的寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为所述第一无线接入节点分配的寻呼区域；
所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识；
所述第一无线接入节点在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。
可选的，所述存储介质中还存储有另外一些计算机程序指令，该另外一些计算机程序指令在与步骤：第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识，对应的计算机程序指令被执行之前被执行，执行过程中包括如下步骤：
所述第一无线接入节点接收所述用户设备发送的位置信令，所述位置信令表征所述用户设备进入第一小区，所述第一小区所在的无线接入节点为所述第一无线接入节点；
所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述存储介质中还存储有另外一些计算机程序指令，该另外一些计算机程序指令在被执行过程中包括如下步骤：
所述第一无线接入节点接收所述用户设备发送的位置更新信令，所述位置更新信令表征所述用户设备从所述第一小区移动到与所述第一小区不同的第二小区，所述第二小区所在的无线接入节点为第二无线接入节点；
若所述第二无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的 标识或所述用户设备所在的跟踪区TA，则所述第一无线接入节点对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
若所述第二无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述存储介质中还存储有另外一些计算机程序指令，该另外一些计算机程序指令在与步骤：第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识，对应的计算机程序指令被执行之前被执行，执行过程中包括如下步骤：
所述第一无线接入节点接收所述用户设备在第三小区发起的数据传输，所述第三小区所在的无线接入节点为所述第一无线接入节点；
所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述存储介质中还存储有另外一些计算机程序指令，该另外一些计算机程序指令在被执行过程中包括如下步骤：
所述第三小区是所述用户设备从第四小区移动后所在的小区，所述第四小区所在的无线接入节点为第四无线接入节点；
若所述第四无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的TA，则所述第一无线接入节点对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
若所述第四无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点通知所述第四无线接入节点对所述第四无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述存储介质中还存储有另外一些计算机程序指令，该另外一 些计算机程序指令在与步骤：第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识，对应的计算机程序指令被执行之前被执行，执行过程中包括如下步骤：
所述第一无线接入节点周期性检测所述用户设备发送的预定信号，所述预定信号表征所述用户设备位于所述无线网络为所述第一无线接入节点分配的寻呼区域；
若所述第一无线接入节点在第一时刻检测到所述预定信号，则所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
可选的，所述存储介质中还存储有另外一些计算机程序指令，该另外一些计算机程序指令在与步骤：所述第一无线接入节点存储所述用户设备的信息，对应的计算机程序指令被执行之后被执行，执行过程中包括如下步骤：
若所述第一无线接入节点在第二时刻未检测到所述用户设备发送的所述预定信号，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
可选的，所述用户设备的信息还包括：所述用户设备所在的小区的标识，或所述用户设备所在的跟踪区TA的标识，所述存储介质中存储的与步骤：所述无线接入节点在所述无线网络为所述无线接入节点分配的寻呼区域内发送所述寻呼信令，对应的计算机程序指令在被执行时，具体包括如下步骤：
所述第一无线接入节点在所述用户设备所在的小区内发送所述寻呼信令；或
所述第一无线接入节点在所述用户设备所在的跟踪区内发送所述寻呼信令。
本发明实施例中提供的一个或多个技术方案，至少具有如下技术效果或优点：
本发明实施例中，无线接入节点预先存储用户设备的标识，当无线接入节点接收到核心网发送的寻呼信令后，无线接入节点判断寻呼信令包含的用 户设备的标识与预先存储的标识是否相同，如果相同，则无线接入点在无线网络为其分配的寻呼区域内发送寻呼信令，如果不同，则不做任何处理，或直接丢弃掉收到的寻呼信令。因此，尽管核心网将寻呼信令发送给多个无线接入点，但并不是每个无线接入点都会继续转发寻呼信令，仅预先存储有寻呼信令中包含的用户设备的标识的无线接入点，才会在无线网络为其分配的寻呼区域内转发寻呼信令，因此，减少了寻呼信令开销。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (16)

  1. 一种寻呼方法，其特征在于，包括：
    第一无线接入节点接收核心网发送的寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为所述第一无线接入节点分配的寻呼区域；
    所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识；
    所述第一无线接入节点在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。
  2. 如权利要求1所述的方法，其特征在于，在所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识之前，还包括：
    所述第一无线接入节点接收所述用户设备发送的位置信令，所述位置信令表征所述用户设备进入第一小区，所述第一小区所在的无线接入节点为所述第一无线接入节点；
    所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
  3. 如权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述第一无线接入节点接收所述用户设备发送的位置更新信令，所述位置更新信令表征所述用户设备从所述第一小区移动到与所述第一小区不同的第二小区，所述第二小区所在的无线接入节点为第二无线接入节点；
    若所述第二无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的跟踪区TA，则所述第一无线接入节点对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
    若所述第二无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
  4. 如权利要求1所述的方法，其特征在于，在所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识之前，还包括：
    所述第一无线接入节点接收所述用户设备在第三小区发起的数据传输，所述第三小区所在的无线接入节点为所述第一无线接入节点；
    所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
  5. 如权利要求4所述的方法，其特征在于，所述方法还包括：
    所述第三小区是所述用户设备从第四小区移动后所在的小区，所述第四小区所在的无线接入节点为第四无线接入节点；
    若所述第四无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的TA，则所述第一无线接入节点对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
    若所述第四无线接入节点与所述第一无线接入节点不同，则所述第一无线接入节点通知所述第四无线接入节点对所述第四无线接入节点已存储的所述用户设备的信息进行删除。
  6. 如权利要求1所述的方法，其特征在于，在所述第一无线接入节点确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识之前，还包括：
    所述第一无线接入节点周期性检测所述用户设备发送的预定信号，所述预定信号表征所述用户设备位于所述无线网络为所述第一无线接入节点分配的寻呼区域；
    若所述第一无线接入节点在第一时刻检测到所述预定信号，则所述第一无线接入节点存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
  7. 如权利要求6所述的方法，其特征在于，在所述第一无线接入节点存储所述用户设备的信息之后，所述方法还包括：
    若所述第一无线接入节点在第二时刻未检测到所述用户设备发送的所述预定信号，则所述第一无线接入节点对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
  8. 如权利要求1-7任一所述的方法，其特征在于，所述用户设备的信息还包括：所述用户设备所在的小区的标识，或所述用户设备所在的跟踪区TA的标识，所述第一无线接入节点在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令，包括：
    所述第一无线接入节点在所述用户设备所在的小区内发送所述寻呼信令；或
    所述第一无线接入节点在所述用户设备所在的跟踪区内发送所述寻呼信令。
  9. 一种寻呼装置，其特征在于，包括：
    接收单元，用于接收核心网发送的寻呼信令，所述寻呼信令包含寻呼区域和用户设备的标识，所述寻呼信令中的寻呼区域至少包括无线网络为所述第一无线接入节点分配的寻呼区域；
    确定单元，用于确定所述寻呼信令中的所述用户设备的标识为所述第一无线接入节点预先存储的标识；
    发送单元，用于在所述无线网络为所述第一无线接入节点分配的寻呼区域内发送所述寻呼信令。
  10. 如权利要求9所述的装置，其特征在于，所述接收单元还用于：
    接收所述用户设备发送的位置信令，所述位置信令表征所述用户设备进入第一小区，所述第一小区所在的无线接入节点为所述第一无线接入节点；
    所述装置还包括存储单元，用于：
    存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
  11. 如权利要求9或10所述的装置，其特征在于，所述接收单元还用于：
    接收所述用户设备发送的位置更新信令，所述位置更新信令表征所述用户设备从所述第一小区移动到与所述第一小区不同的第二小区，所述第二小区所在的无线接入节点为第二无线接入节点；
    所述装置还包括第一更新单元或第一删除单元；
    所述第一更新单元用于：若所述第二无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所述用户设备所在的小区的标识或所述用户设备所在的跟踪区TA，则对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
    所述第一删除单元用于：若所述第二无线接入节点与所述第一无线接入节点不同，则对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
  12. 如权利要求9所述的装置，其特征在于，所述接收单元还用于：
    接收所述用户设备在第三小区发起的数据传输，所述第三小区所在的无线接入节点为所述第一无线接入节点；
    所述存储单元用于：存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
  13. 如权利要求12所述的装置，其特征在于，
    所述第三小区是所述用户设备从第四小区移动后所在的小区，所述第四小区所在的无线接入节点为第四无线接入节点；
    所述装置还包括第二更新单元或第二删除单元；
    所述第二更新单元用于：若所述第四无线接入节点与所述第一无线接入节点相同，且所述第一无线接入节点已存储的所述用户设备的信息还包括所 述用户设备所在的小区的标识或所述用户设备所在的TA，则对已存储的所述用户设备的信息中所述用户设备所在的小区的标识或所述用户设备所在的TA的标识进行更新；
    所述第二删除单元用于：若所述第四无线接入节点与所述第一无线接入节点不同，则通知所述第四无线接入节点对所述第四无线接入节点已存储的所述用户设备的信息进行删除。
  14. 如权利要求9所述的装置，其特征在于，所述装置还包括检测单元，用于：
    周期性检测所述用户设备发送的预定信号，所述预定信号表征所述用户设备位于所述无线网络为所述第一无线接入节点分配的寻呼区域；
    所述存储单元用于：若所述第一无线接入节点在第一时刻检测到所述预定信号，则存储所述用户设备的信息，所述用户设备的信息至少包括所述用户设备的标识。
  15. 如权利要求14所述的装置，其特征在于，所述装置还包括第三删除单元，用于：
    若所述第一无线接入节点在第二时刻未检测到所述用户设备发送的所述预定信号，则对所述第一无线接入节点已存储的所述用户设备的信息进行删除。
  16. 如权利要求9-15任一所述的装置，其特征在于，所述用户设备的信息还包括：所述用户设备所在的小区的标识，或所述用户设备所在的跟踪区TA的标识，所述发送单元用于：
    在所述用户设备所在的小区内发送所述寻呼信令；或
    在所述用户设备所在的跟踪区内发送所述寻呼信令。
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