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WO2013113240A1 - Procédé de transmission d'informations de rn, procédé d'appel d'ue et appareil correspondant - Google Patents

Procédé de transmission d'informations de rn, procédé d'appel d'ue et appareil correspondant Download PDF

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Publication number
WO2013113240A1
WO2013113240A1 PCT/CN2012/087426 CN2012087426W WO2013113240A1 WO 2013113240 A1 WO2013113240 A1 WO 2013113240A1 CN 2012087426 W CN2012087426 W CN 2012087426W WO 2013113240 A1 WO2013113240 A1 WO 2013113240A1
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WIPO (PCT)
Prior art keywords
mobile
uplink
core network
network device
message
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Application number
PCT/CN2012/087426
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English (en)
Chinese (zh)
Inventor
焦斌
Original Assignee
电信科学技术研究院
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Publication of WO2013113240A1 publication Critical patent/WO2013113240A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H04W68/025—Indirect paging

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for transmitting RN (Relay Node) information and paging a UE.
  • RN Relay Node
  • the Mobility Management Entity uses the Tracking Area (Tracking Area) as the granularity to manage the UE (User Equipment) mobility, including paging to the UE, and the structure of the Tracking Area.
  • Tracking Area Tracking Area
  • the schematic diagram is shown in Figure 1.
  • a Tracking Area area includes a plurality of cells controlled by a plurality of base stations, and the cells controlled by the base stations 1, 2, and 3 are configured to belong to the Tracking Area 1 according to FIG. 1; the cells controlled by the base stations 4, 5, and 6 are The configuration belongs to the Tracking Area 2, and the UE 1 does not need to initiate a location update process when the Tracking Area 1 belongs to the cell.
  • the UE1 When the UE1 moves out of the Tracking Area 1, the UE1 needs to initiate a new location update process (for example, the UE1 moves to the Tracking Area 2).
  • the paging message will be sent to all base stations included in Tracking Area1 (in this example, the target base station for paging includes base stations 1, 2 and 3), and after receiving the paging message, the target base station receives the paging message. , respectively, sending a downlink paging message on the air interface of the cell that is controlled by itself.
  • UE1 receives a paging message to itself from the downlink paging channel of the current self-resident cell.
  • the downlink paging channel capacity of each cell is constant.
  • an important input is the number of UEs in the idle state in the target area and the probability that the UE in the idle state transitions to the connected state. Avoid the paging congestion problem caused by the overload of the paging channel caused by excessive paging message overload.
  • Mobile Relay is mainly to solve the problem of high-speed railway coverage scenarios, usually deploying a mobile relay on each train.
  • the system structure and configuration of the mobile relay is shown in Figure 2.
  • the embodiments of the present invention provide a method and a device for transmitting RN information and paging a UE, which are used to implement the RN information of the core network device, and implement paging for the idle UE under the RN.
  • a method for obtaining RN information includes the following steps:
  • the core network device receives the uplink UE related S1AP message sent by the mobile RN in the location update process; the core network device determines the identity of the mobile RN that sends the uplink UE related S1AP message by using the uplink UE related S1AP message, and saves the identifier of the mobile RN to In the context of the UE associated with the uplink UE related S1AP message.
  • a method for extracting RN information includes the following steps:
  • the mobile RN receives a location update request message sent by the UE;
  • the mobile RN sends an uplink UE related S 1 AP message to the core network device, and the uplink UE related S 1 AP message carries the identifier of the mobile RN.
  • a method for extracting RN information includes the following steps:
  • the mobile RN sends its own identity and address information to the core network device when establishing a connection with the core network device; the mobile RN receives the location update request message sent by the UE;
  • the mobile RN sends an uplink UE related S 1 AP message to the core network device, and the uplink UE related S 1 AP message carries the address information of the mobile RN.
  • a method for paging a UE includes the following steps:
  • the core network device determines, according to the trigger condition, that a paging process needs to be initiated for the UE in the idle state;
  • the core network device determines, according to the context of the UE, whether the UE resides under the mobile RN;
  • the core network device sends a paging message to the corresponding mobile RN according to the identity of the mobile RN stored in the context of the UE.
  • a core network device including:
  • An interface module configured to receive an uplink UE related SI AP message sent by the mobile RN during the location update process, where the control module is configured to determine, by using an uplink UE related S1AP message, an identifier of the mobile RN that sends the uplink UE related S1AP message, and The identity of the RN is saved in the context of the UE associated with the uplink UE related S1AP message.
  • a mobile RN including:
  • a user interface module configured to receive a location update request message sent by the UE
  • the network interface module is configured to send an uplink UE related S1AP message to the core network device, where the uplink UE related S1AP message carries the identifier of the mobile RN.
  • a mobile RN including:
  • a network interface module configured to send its own identifier and address information to the core network device when establishing a connection with the core network device
  • a user interface module configured to receive a location update request message sent by the UE
  • the network interface module sends an uplink UE related S1AP message to the core network device, and the uplink UE related S1AP message carries the address information of the mobile RN.
  • a core network device including:
  • a triggering module configured to determine, according to the triggering condition, that a paging process needs to be initiated for the UE in an idle state
  • control module configured to determine, according to a context of the UE, whether the UE resides under the mobile RN;
  • the interface module is configured to: when the determination is yes, send a paging message to the corresponding mobile RN according to the identifier of the mobile RN stored in the context of the UE.
  • the core network device when the core network device needs to page to the UE in the idle state, it is determined whether the UE is camped on the mobile RN, and if yes, sends a paging message to the mobile RN instead of all in the TA.
  • the base station sends a paging message.
  • the paging problem of the idle state UE in the mobile RN is solved, and the paging message is sent to the specific RN, thereby saving network resources.
  • the core network device needs to determine the identity of the mobile RN during the location update process before sending the paging message to the mobile RN.
  • the core network device may directly obtain the identifier of the mobile RN in the location update process, or obtain the identifier of the mobile RN in the process of establishing a connection with the mobile RN.
  • FIG. 1 is a schematic structural diagram of a Tracking Area in the prior art
  • FIG. 2 is a schematic diagram showing the structure and configuration of a system for introducing a mobile relay in the prior art
  • FIG. 3 is a flowchart of a main method for a core network device to obtain mobile RN information according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a first method for reporting RN information according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a second method for reporting RN information according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for determining and saving a mobile RN identifier when an uplink UE related S1AP (S1 interface application protocol) message carries an identifier of a mobile RN according to an embodiment of the present disclosure
  • FIG. 7 is a flowchart of a method for determining and saving a mobile RN identifier when an uplink UE related S 1 AP message carries address information of a mobile RN according to an embodiment of the present invention
  • FIG. 8 is a flowchart of a method for updating a UE context after a UE moves out of a coverage area of a mobile RN according to an embodiment of the present invention
  • FIG. 9 is a flowchart of a method for paging a UE according to an embodiment of the present invention.
  • FIG. 10 is a structural diagram of a core network device when obtaining RN information according to an embodiment of the present invention.
  • FIG. 11 is a structural diagram of an RN according to an embodiment of the present invention
  • FIG. 12 is a structural diagram of a core network device when paging a UE according to an embodiment of the present invention. detailed description
  • the core network device when the core network device needs to page to the UE in the idle state, it is determined whether the UE is camped on the mobile RN, and if yes, sends a paging message to the mobile RN instead of all in the TA.
  • the base station sends a paging message.
  • the paging problem of the idle state UE in the mobile RN is solved, and the paging message is sent to the specific RN, thereby saving network resources.
  • the core network device needs to determine the identity of the mobile RN during the location update process before sending the paging message to the mobile RN.
  • the core network device may directly obtain the identifier of the mobile RN in the location update process, or obtain the identifier of the mobile RN in the process of establishing a connection with the mobile RN.
  • the main method for obtaining the mobile RN information by the core network device in this embodiment is as follows:
  • Step 301 The core network device receives an uplink UE related S1AP message sent by the mobile RN in the location update process.
  • Step 302 The core network device determines, by using an uplink UE related S1AP message, an identifier of the mobile RN that sends the uplink UE related S1AP message, and saves the identifier of the mobile RN to the context of the UE related to the uplink UE related S1AP message.
  • the uplink UE related S1AP message is specifically a location update message, and may carry the identity of the mobile RN or the address information of the mobile RN (such as an IP (Internet Protocol) address, etc.).
  • the core network device When the uplink UE related S1AP message carries the scheme of the identity of the mobile RN, the core network device directly determines the identity of the mobile RN that sends the uplink UE related S1AP message by using the uplink UE related S1AP message.
  • the core network device When the uplink UE related S1AP message carries the scheme of the mobile RN's address information, the core network device obtains the identity and address information of the mobile RN in the process of establishing a connection with the mobile RN, and then determines to send the uplink UE related S1AP message.
  • the address information of the mobile RN of the uplink UE related S1AP message, and the identifier of the mobile RN is determined by the address information.
  • the identifier of the mobile RN is a specific range of base station identifiers, or includes a base station identifier and a mobile RN type.
  • the UE sends a location update request to the base station.
  • the core network device receives the uplink UE-related S1AP message sent by the base station in the location update process, and queries the context of the UE related to the uplink UE-related S1AP message. If the identifier of the mobile RN is queried, the mobile RN saved in the UE context is deleted. logo.
  • the implementation process of the mobile network RN is determined by the mobile network RN.
  • Step 401 The mobile RN receives a location update request message sent by the UE.
  • Step 402 The mobile RN sends an uplink UE related S 1 AP message to the core network device, where the uplink UE related S 1 AP message carries the identifier of the mobile RN.
  • the identifier of the mobile RN is a specific range of base station identifiers, or includes a base station identifier and a mobile RN type.
  • the second method for reporting RN information in this embodiment is as follows:
  • Step 501 The mobile RN sends its own identity and address information to the core network device when establishing a connection with the core network device.
  • Step 502 The mobile RN receives a location update request message sent by the UE.
  • Step 503 The mobile RN sends an uplink UE related S1AP message to the core network device, where the uplink UE related S1AP message carries the address information of the mobile RN.
  • the identity of the mobile RN includes a specific range of base station identifiers, or includes a base station identity and a mobile RN type.
  • the above is the implementation of the location update process from both the core network device and the mobile RN.
  • the following describes the implementation process of determining and saving the mobile RN identity in combination with the two sides.
  • the method for determining and saving the mobile RN identifier is as follows:
  • Step 601 The UE sends a location update request message to the mobile RN through an air interface.
  • Step 602 The Mobile Relay sends its own mobile RN identity and location update request message to the core network device by using the uplink UE related S1AP message.
  • the specific uplink UE related S1AP message includes an "Initial UE Message" message or an "Uplink NAS Transport” message.
  • 3GPP TS 36.413 There are multiple types of mobile RNs.
  • the network can reserve a dedicated e B (Evolved Base Station) ID range as the mobile RN identifier, which is specifically configured for use by the mobile RN.
  • eNB ID definition refer to 3GPP TS36.413.
  • the MME is based on the range of the eNB ID.
  • the mobile RN and the normal eNB are distinguished.
  • the mobile RN identifier is composed of two parts, including an existing eNB ID part and a mobile RN type indication part, where the mobile RN type indication is used to indicate that the current device type is a mobile RN.
  • Step 603 The core network device saves the received mobile RN identifier in the context of the UE.
  • the method for determining and saving the mobile RN identifier is as follows:
  • the mobile RN When the mobile RN establishes an S1 interface (the interface between the access network and the core network), the mobile RN sends its own identity to the core network device, and the core network device saves the mobile RN identity to the context of the mobile RN, and receives the The message identified by the mobile RN obtains the address information of the mobile RN.
  • the dedicated eNB ID range is specifically configured for the mobile RN as the mobile RN identity.
  • the core network device distinguishes the mobile RN from the normal eNB according to the range of the eNB ID. It consists of two parts, including an existing eNB ID part and a mobile RN type indication part, where the mobile RN type indication is used to indicate that the current device type is a mobile RN.
  • Step 701 The UE sends a location update request message to the mobile RN through an air interface.
  • Step 702 The mobile RN sends a location update request message to the MME by using an uplink UE related S1 AP message.
  • the location update request message carries the address information of the mobile RN.
  • the specific content of the specific uplink UE related S1AP message can be found in 3GPP TS36.413 0
  • Step 703 The core network device saves the previously saved mobile RN according to the address information of the mobile RN corresponding to the S1 interface of the received S1 AP message source, and the identity and address information of the mobile RN obtained when the S1 interface is established.
  • the identity is saved in the context of the UE.
  • the method for updating the UE context after the UE moves out of the coverage area of the mobile RN in this embodiment is as follows:
  • the UE moves from the mobile RN to the base station.
  • Step 801 The UE sends a location update request message to the e B through the air interface.
  • Step 802 The eNB sends a location update request message to the core network device by using an S1AP message related to the uplink UE.
  • S1AP message related to the uplink UE.
  • Step 803 The core network device determines that the UE moves out of the mobile RN by querying the context of the UE, and deletes the identifier information of the mobile RN that the UE last successfully accessed by the UE in the context.
  • the core network device can determine whether the UE to be paged is camped on the mobile RN according to the paging process, and perform a corresponding paging process.
  • the method for paging a UE in this embodiment is as follows:
  • Step 901 The core network device determines, according to the trigger condition, that a paging process needs to be initiated for the UE in the idle state.
  • the trigger conditions include: "downstream data arrival” and "call request received by the called core network during the voice call”.
  • Step 902 The core network device determines, according to the context of the UE, whether the UE resides under the mobile RN.
  • the specific method includes: One method is to configure a special TAI (Tracking Area Identity) or TAI range for the mobile RN of the entire network, that is, the mobile RNs of the entire network share a specific TAI or allocate several specific TAIs. For the mobile RN of the entire network, instead of assigning a unique TAL to each mobile RN, the specific TAI can only be used by the mobile RN and the UE camping on the mobile RN, and the UE carries the TAI in the reported location update request, and the core network After the device receives it, it is saved in the context of the UE.
  • TAI Track Area Identity
  • the core network device determines whether the UE resides under the mobile RN according to the TAI currently registered by the UE. Another method is that the core network device determines whether the UE resides under the mobile RN according to whether the identity of the mobile RN is saved in the UE context. Step 903: If yes, the core network device sends a paging message to the corresponding mobile RN according to the identifier of the mobile RN saved in the context of the UE.
  • the core network device sends a paging message to all base stations configured with the TAI according to the TAI information stored in the context of the UE.
  • paging at the granularity of TA, for systems such as GSM (Global System for Mobile communication) or UMTS (Universal Mobile Telecommunication System), Paging is performed at the granularity of the location area.
  • GSM Global System for Mobile communication
  • UMTS Universal Mobile Telecommunication System
  • the process of determining the mobile RN and paging the UE is described above.
  • the process is mainly implemented by the core network device and the RN.
  • the internal structure and functions of the two devices are described below.
  • the core network device in this embodiment includes: an interface module 1001 and a control module 1002.
  • the core network device is the MME for the LTE system and the subsequent evolved system.
  • the core network equipment includes MSC (Mobile Switching Center) and SGSN (Serving GSN, Serving GPRS Support Node; GPRS: General Packet Radio Service).
  • the interface module 1001 is configured to receive an uplink UE related S1AP message sent by the mobile RN in the location update process, where the control module 1002 is configured to determine, by using an uplink UE related S1AP message, an identifier of the mobile RN that sends the uplink UE related S1AP message, and The identity of the mobile RN is saved in the context of the UE associated with the uplink UE related S1AP message.
  • the control module 1002 directly determines the identity of the mobile RN that sends the uplink UE related S1AP message by using the uplink UE related S1AP message.
  • the interface module 1001 is further configured to obtain the identifier and address information of the mobile RN in the process of establishing a connection with the mobile RN.
  • the control module 1002 determines the address information of the mobile RN that sends the uplink UE related S1AP message by using the uplink UE related S1AP message, and determines the mobile RN by using the address information.
  • the identifier of the mobile RN is a specific range of base station identifiers, or includes a base station identifier and a mobile RN type.
  • the interface module 1001 is further configured to receive an uplink UE related S1AP message sent by the base station in the location update process.
  • the control module 1002 is further configured to query a context of the UE related to the uplink UE related S1AP message, and if the identifier of the mobile RN is queried, delete the identifier of the mobile RN saved in the UE context.
  • the RN includes: a user interface module 1101 and a network interface module 1102.
  • the user interface module 1101 is configured to receive a location update request message sent by the UE.
  • the network interface module 1102 is configured to send an uplink UE related S1AP message to the core network device, where the uplink UE related S1 AP message carries the identifier of the mobile RN. or:
  • the network interface module 1102 is configured to send its own identifier and address information to the core network device when establishing a connection with the core network device.
  • the user interface module 1101 is configured to receive a location update request message sent by the UE.
  • the network interface module 1102 sends an uplink UE related S1AP message to the core network device, and the uplink UE related S1AP message carries the address information of the mobile RN.
  • the identifier of the mobile RN is a specific range of base station identifiers, or includes a base station identifier and a mobile RN type.
  • the core network device further includes: a trigger module 1003, as shown in FIG.
  • the triggering module 1003 is configured to determine, according to the triggering condition, that a paging process needs to be initiated for the UE in an idle state.
  • the control module 1002 is configured to determine, according to the context of the UE, whether the UE resides under the mobile RN. Specifically, the control module 1002 determines whether the tracking area identifier TAI dedicated to the mobile RN is stored in the context of the UE, and if yes, determines that the UE resides under the mobile RN. Alternatively, the control module 1002 determines whether the identity of the mobile RN is stored in the context of the UE, and if so, determines that the UE resides under the mobile RN.
  • the interface module 1001 is configured to: when the determination is yes, send a paging message to the corresponding mobile RN according to the identifier of the mobile RN stored in the context of the UE.
  • the interface module 1001 is further configured to: when the determination is no, send a paging message to all the base stations configured with the TA identifier according to the TA identifier information saved in the context of the UE.
  • the core network device when the core network device needs to page to the UE in the idle state, it is determined whether the UE is camped on the mobile RN, and if yes, sends a paging message to the mobile RN instead of all in the TA.
  • the base station sends a paging message.
  • the paging problem of the idle state UE in the mobile RN is solved, and the paging message is sent to the specific RN, thereby saving network resources.
  • the core network device needs to determine the identity of the mobile RN during the location update process before sending the paging message to the mobile RN.
  • the core network device may directly obtain the identifier of the mobile RN in the location update process, or move the identifier of the RN in the process of establishing a connection with the mobile RN.
  • the mobile RN can identify its own identity in a variety of ways, and its identity can be a specific range of base station identity or consists of base station identity and mobile RN type information.
  • 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 present invention is in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.
  • the present invention is directed to a flowchart of a method, apparatus (system), and computer program product according to an embodiment of the present invention. And / or block diagram to describe. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • 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 one or more of the flow or in a block or blocks of a flow diagram.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un procédé de transmission d'informations de RN, un procédé d'appel d'UE et un appareil correspondant, les procédés et l'appareil étant utilisés pour permettre l'acquisition d'informations de RN à l'aide d'un dispositif de réseau central et pour appeler un UE en veille dans un RN. Le procédé d'acquisition des informations de RN comprend les opérations suivantes : dans un processus de mise à jour de position, le dispositif de réseau central reçoit un message S1AP de corrélation d'UE de liaison montante envoyé par un RN mobile; conformément au message S1AP de corrélation d'UE de liaison montante, le dispositif de réseau central détermine l'identificateur du RN mobile qui a envoyé le message S1AP de corrélation d'UE de liaison montante, et stocke l'identificateur du RN mobile dans le contexte de l'UE en rapport avec le message S1AP de corrélation d'UE de liaison montante. Le procédé d'appel de l'UE comprend les opérations suivantes : conformément à une condition de déclenchement, le dispositif de réseau central détermine que le lancement d'un processus d'appel de l'UE dans un état de veille est nécessaire; le dispositif de réseau central détermine si l'UE réside sous le RN mobile ou non en fonction du contexte de l'UE, et si tel est le cas, conformément à l'identificateur du RN mobile stocké dans le contexte de l'UE, un message d'appel est envoyé au RN mobile correspondant.
PCT/CN2012/087426 2012-02-02 2012-12-25 Procédé de transmission d'informations de rn, procédé d'appel d'ue et appareil correspondant WO2013113240A1 (fr)

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CN111586669B (zh) * 2012-11-28 2023-06-30 北京三星通信技术研究有限公司 寻呼移动中继下终端的方法及设备
ES2927063T3 (es) * 2016-11-03 2022-11-02 Ipcom Gmbh & Co Kg Intercambio de mensajes para dispositivos ponibles
CN113242599A (zh) * 2021-06-23 2021-08-10 无锡职业技术学院 一种中继节点下终端位置管理方法

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