WO2009012666A1 - Procédé et système pour transmettre un message de couche de non-accès durant un transfert et station de base associée - Google Patents

Procédé et système pour transmettre un message de couche de non-accès durant un transfert et station de base associée Download PDF

Info

Publication number
WO2009012666A1
WO2009012666A1 PCT/CN2008/070742 CN2008070742W WO2009012666A1 WO 2009012666 A1 WO2009012666 A1 WO 2009012666A1 CN 2008070742 W CN2008070742 W CN 2008070742W WO 2009012666 A1 WO2009012666 A1 WO 2009012666A1
Authority
WO
WIPO (PCT)
Prior art keywords
message
handover
access stratum
base station
user equipment
Prior art date
Application number
PCT/CN2008/070742
Other languages
English (en)
Chinese (zh)
Inventor
Yong Qiu
Ying Huang
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009012666A1 publication Critical patent/WO2009012666A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection

Definitions

  • the present invention relates to a method for transmitting a message in a mobile communication network, and more particularly to a method and system for transmitting a NAS (Non-Access Stratum) message in a handover process and a base station.
  • NAS Non-Access Stratum
  • LTE Long Term Evolution
  • UE User Equipment
  • eNB evolved NodeB
  • oMME/SAE Gateway mobile management entity/service gateway
  • the eNB is connected to the eNB through an SI interface, and the eNBs are connected by an X2 interface.
  • the multiple eNBs constitute an LTE access network, and unlike the UMTS (Universal Mobile Telecommunications System) access network, the NodeB and the access network are included.
  • RNC Radio Network Controller, Network Controller
  • the MME/SAE Gateway constitutes the CN (Core Network) of LTE.
  • the handover process is divided into two categories: one is switching through the X2 interface, and the other is switching through the S1 interface.
  • the source eNB directly sends a handover request message to the target eNB through the X2 interface, and the handover process is completed under the same MME/SAE Gateway.
  • the handover is usually called X2. Port switching.
  • the NAS message is a signaling message between the CN and the UE.
  • the existing LTE related protocol (TS36.300 V0.0.2) specifies that the NAS message can be carried in an RRC (Radio Resource Control) message and sent to the eNB.
  • the eNB sends the NAS message to the CN in the RANAP (Radio Access Network Application Part) message, for example, the initial UE message.
  • RANAP Radio Access Network Application Part
  • the LTE network includes: a UE, a source eNB, a target eNB, and an MME/SAE Gateway.
  • the simplified procedure of the handover is as follows:
  • Step 1 The source eNB sends a handover request message to the target eNB, where the handover request carries the necessary information when the target side handover is prepared.
  • Step 2 The target eNB sends a handover request response message to the source eNB.
  • Step 3 The source eNB sends a handover command message to the UE, where the handover command message is used to command the UE to complete the handover process.
  • Step 4 The UE sends a handover confirmation message to the target eNB, and the handover confirmation message confirms that the handover is completed to the target eNB. If the UE has a NAS message generated at this time, the NAS message is buffered.
  • Step 5 The target eNB sends a handover complete message to the MME/SAE Gateway, and the handover complete message notifies the MME/SAE Gateway node to replace the cell, and the MME/SAE Gateway switches the data path to the target eNB, releasing the user plane and the transmission network related to the source eNB. Layer resources.
  • Step 6 The MME/SAE Gateway sends a handover complete acknowledgement message to the target eNB, and the handover completes the acknowledgement message to confirm that the handover is complete. If the MME/SAE Gateway generates the NAS message at this time, the NAS message is cached.
  • Step 7 The target eNB sends a resource release message to the source eNB, where the resource release message triggers the source eNB to release the resource. After receiving the resource release message, the source eNB releases the resources of the radio and resource control plane.
  • Step 8 The UE sends the NAS message buffered in the handover process to the target eNB by using the uplink direct transmission message.
  • Step 9 The target eNB sends a direct transmission message to the fixed E/SAE Gateway, where the direct transmission message is used to forward the uplink direct transmission message received by the target eNB from the UE. Therefore, the direct message carries the above NAS message.
  • Step 10 The MME/SAE Gateway sends a direct transmission message to the target eNB, where the message is a feedback message to the uplink direct transmission message received from the target eNB. If the MME/SAE Gateway generates the NAS message in step 6, the MME/SAE Gateway generates the direct message. The NAS message is carried in the direct transmission message and sent to the target eNB.
  • Step 11 The target eNB sends a downlink direct transmission message to the UE, and is used to forward the foregoing feedback message received from the MME/SAE Gateway.
  • the uplink direct transmission message and the downlink direct transmission message in the above steps belong to the RRC message, and the direct transmission message belongs to
  • the NAS message generated by the MME/SAE Ga teway and the UE end during the handover process can be processed, the NAS message is buffered for a period of time at the UE and the ME/SAE Ga teway side, for example.
  • an object of the embodiments of the present invention is to provide a method and system for transmitting a non-access stratum message and a base station in a handover process, so as to reduce the delay of non-access stratum message transmission.
  • the embodiment of the present invention provides a method for transmitting a non-access stratum message in a handover process, where the method includes: the target base station receives a handover confirmation message sent by the user equipment, and the user equipment generates the handover process.
  • the handover confirmation message includes the first non-access stratum message; the target base station sends a handover complete message to the core network, where the handover complete message carries the first non-
  • the access layer message includes: the target base station receives the handover complete acknowledgment message sent by the core network, and when the core network generates the second non-access stratum message, the handover complete acknowledgment message includes the second non-access stratum
  • the target base station forwards the handover complete confirmation message to the user equipment.
  • the embodiment of the present invention further provides a long-term evolution network system.
  • the system includes: a user equipment, a target base station, and a core network. If the handover is successful, the user equipment is configured to send a handover to the target base station. a confirmation message, and the user equipment generates the first non-access stratum message in the handover process, the handover confirmation message includes the first non-access stratum message; the target base station is configured to receive the handover confirmation The message is further used to send a handover complete message to the core network, where the handover complete message carries the first non-access stratum message, and is further configured to receive a handover complete acknowledgement message sent by the core network, and is further used for forwarding to the user equipment.
  • the embodiment of the present invention further provides a base station, in the handover process, when the handover is successful, the base station is a target base station. When the handover is successful, the base station includes a receiving unit, configured to receive a handover confirmation message from the user equipment.
  • the handover confirmation message includes a first non-access stratum cell, and is further configured to receive a handover complete acknowledgement message sent by the core network, where the handover complete acknowledgement message includes a second non-access stratum cell; the cell extracting unit For obtaining the first non-access stratum cell from the handover confirmation message, the cell synthesizing unit, configured to carry the first non-access stratum cell in the handover complete message; And the message forwarding unit is configured to forward the handover completion confirmation message to the user equipment.
  • the method, the system, and the base station provided by the embodiments of the present invention enable the NAS message generated by the user equipment or the core network in the handover process to be carried in the handover process, and the handover confirmation message and the handover completion confirmation message are carried in the handover process, and can be sent in time. Going out, reducing the delay, so as to provide the service requested by the user in time; and without resending the RRC direct transmission message or the RANAP direct transmission message, saving air interface resources; and without adding any complexity.
  • FIG. 1 is a schematic structural diagram of a network of LTE in the prior art
  • FIG. 3 is a schematic diagram of a transmission process of a NAS message when the X2 port is successfully switched in the embodiment of the present invention
  • FIG. 4 is a schematic diagram of a transmission process of a NAS message when the X2 port fails to be switched in the embodiment of the present invention
  • System structure diagram
  • FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention. detailed description
  • FIG. 3 is a schematic diagram of a transmission process of a NAS message when the X2 port is successfully switched in the embodiment of the present invention.
  • Step 301 The UE sends a handover confirmation message to the target eNB. If the UE has a NAS message, the NAS message is carried in the handover confirmation message.
  • the UE may also cache the NAS message.
  • the specific method may be that the UE generates a first NAS PDU IE (first non-access stratum packet data unit cell), and inserts the IE (cell) into the IE list of the handover confirmation message as shown in Table 1.
  • NAS PDU IE first non-access stratum packet data unit cell
  • Step 302 After receiving the handover confirmation message, the target eNB sends a handover complete message to the MME/SAE Ga teway. If the NAS message is found in the handover confirmation message, the NAS message is sent to the MME by using the handover complete message. /SAE Ga teway 0
  • the IE may be taken out and inserted into the IE list of the handover complete message as shown in Table 2.
  • Target eNodeB to M It includes
  • Step 303 When the MME/SAE Ga teway receives the handover complete message, it sends a cut to the target eNB. If the MME/SAE Ga teway has a NAS message, the NAS message is carried in the handover completion confirmation message and sent to the target eNB.
  • the second NAS PDU IE is generated, and the IE is inserted into the IE list of the handover completion confirmation message shown in Table 3.
  • Step 304 When the target eNB receives the handover complete confirmation message from the MME/SAE Ga teway, if the second NAS PDU IE is found in the message, the handover complete confirmation message is forwarded to the UE.
  • the target eNB may forward the handover completion confirmation message to the UE by using an RRC message.
  • the MME/SAE Ga teway carries the NAS message in the handover completion acknowledgement message, so that the NAS message generated by the UE or the MME/SAE Ga teway during the handover process can be sent in time, and the NAS message does not need to be sent separately, thereby saving air interface resources.
  • FIG. 4 is a schematic flowchart of an embodiment of the present invention. This process is a process in which a UE carries a NAS message in a handover acknowledgement message sent by a UE to a target eNB, and the UE does not synchronize successfully with the target eNB. Reason.
  • Step 401 is the same as step 301.
  • Step 402 The handover acknowledgement message sent by the UE to the target eNB in the foregoing step 401 does not successfully reach the target eNB, that is, the UE and the target eNB fail to synchronize.
  • the UE sends a first RRC message to the source eNB to restore the connection with the source eNB, and the UE carries the cached NAS message in the RRC message.
  • Step 403 The source eNB forwards the first RRC message received from the UE to the MME/SAE Ga teway by using a direct transmission message or another RANAP message.
  • the UE when the handover fails, the UE carries the NAS message generated in the handover process in the first RRC message sent to the source eNB, so that the NAS message of the UE can be processed, thereby improving the user experience. degree.
  • the MME/SAE Ga teway generates the NAS message before the handover, and the MME/SAE Ga teway does not process the NAS message immediately, but waits for the NAS message to be processed after the handover is completed.
  • the processing method of the NAS message if the MME/SAE Ga teway generates the NAS message before the source eNB sends the handover command message to the UE, the MME/SAE Ga teway carries the NAS message in the direct transmission message or other RANAP message and sends the message to the source.
  • the eNB, the source eNB carries the NAS message in the handover command message and sends the message to the UE.
  • the NAS message generated by the MME/SAE Ga teway can be sent to the UE in time by using the method in the embodiment of the present invention, which improves the user's feeling.
  • the foregoing is a specific implementation manner of the NAS message transmission method in the handover process provided by the embodiment.
  • the embodiment of the present invention further provides an LTE system, which is used for the transmission of a NAS message, as shown in FIG. 5 is a schematic structural diagram of the LTE system in the embodiment, where the system includes:
  • the user equipment 510 0 is configured to send a handover confirmation message to the target eNB. If the first NAS message is sent, the first IE generating unit 51 1 is configured to generate a first NAS PDU IE corresponding to the first NAS message. And inserting the IE into the IE list of the handover confirmation message; further comprising a message buffering unit 512, configured to cache the first NAS message.
  • the target eNB 520 is configured to: when the handover is successful, receive a handover confirmation message sent by the user equipment, and further send a handover complete message to the core network, where the handover complete message carries the first NAS
  • the information is also used to receive the handover complete acknowledgment message sent by the core network, and is further used to forward the handover complete acknowledgment message to the user equipment, where the handover complete acknowledgment message carries the second NAS message generated by the core network.
  • the target eNB 520 includes an IE extracting unit 521 for extracting the first NAS PDU IE in the handover confirmation message, and an IE synthesizing unit 522, configured to insert the first NAS PDU IE into the handover complete message; the message forwarding unit 523 And forwarding, to the UE, a handover complete message of the NAS message carrying the MME/SAE Ga teway.
  • the MME/SAE Ga teway 540 is configured to: when the handover is successful, send a handover complete confirmation message to the target eNB, and if the second NAS message is sent, further include a second IE generating unit 541, configured to generate, corresponding to the second NAS message, The second NAS PDU IE inserts the IE into the IE list of the handover completion confirmation message described above.
  • the system further includes a source eNB 530, configured to: when the handover fails, receive the first radio resource control RRC message from the UE, and forward the message to the MME/SAE Ga teway 540 by using the RANAP direct transmission message.
  • a source eNB 530 configured to: when the handover fails, receive the first radio resource control RRC message from the UE, and forward the message to the MME/SAE Ga teway 540 by using the RANAP direct transmission message.
  • the embodiment of the present invention further provides a base station, as shown in FIG. 6 is a schematic structural diagram of the base station.
  • the base station serves as a target base station, and the base station includes: a receiving unit, configured to receive a handover confirmation message from the user equipment, where the handover confirmation message includes a first NAS cell, where the first NAS cell is corresponding to the first NAS message generated by the UE, and is further configured to receive a handover completion confirmation message sent by the core network,
  • the handover completion confirmation message includes a second NAS cell, where the second NAS cell corresponds to the second NAS message generated by the core network, and the cell extraction unit is configured to acquire the first message from the handover confirmation message.
  • the handover complete confirmation message is forwarded to the user equipment.
  • the base station as the source base station, is configured to forward the first radio resource control message received from the user equipment to the core network if the handover fails.

Landscapes

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

Abstract

La présente invention propose un procédé pour transmettre un message de couche de non-accès durant un transfert, le procédé comportant les étapes suivantes : un équipement utilisateur envoie un message de confirmation de transfert transportant un message de couche de non-accès de l'équipement utilisateur à une station de base cible; si le transfert est réussi, la station de base cible envoie un message d'achèvement de transfert transportant le message de couche de non-accès dans le message de confirmation de transfert reçu à une entité de gestion mobile/passerelle de service; l'entité de gestion mobile/passerelle de service envoie la confirmation d'achèvement de transfert transportant un message de couche de non-accès dans l'entité de gestion mobile/passerelle de service à la station de base cible; et la station de base cible la réexpédie ensuite à l'équipement utilisateur. La présente invention propose aussi un système et une station de base dans le réseau d'évolution à long terme (LTE) pour exécuter le procédé précédent. Avec la présente invention, le délai temporel pour envoyer un message de couche de non-accès durant un transfert peut être réduit, le service demandé par l'utilisateur peut être fourni à temps et des ressources d'interfaces radio peuvent être économisées.
PCT/CN2008/070742 2007-07-26 2008-04-17 Procédé et système pour transmettre un message de couche de non-accès durant un transfert et station de base associée WO2009012666A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2007100754140A CN101355785B (zh) 2007-07-26 2007-07-26 一种切换过程中非接入层消息的传输方法和系统
CN200710075414.0 2007-07-26

Publications (1)

Publication Number Publication Date
WO2009012666A1 true WO2009012666A1 (fr) 2009-01-29

Family

ID=40280998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/070742 WO2009012666A1 (fr) 2007-07-26 2008-04-17 Procédé et système pour transmettre un message de couche de non-accès durant un transfert et station de base associée

Country Status (2)

Country Link
CN (1) CN101355785B (fr)
WO (1) WO2009012666A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8597688B2 (en) 2008-07-09 2013-12-03 Basf Se Pesticidal mixtures comprising isoxazoline compounds II

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010088795A1 (fr) * 2009-02-03 2010-08-12 深圳华为通信技术有限公司 Procédé et appareil de traitement d'une porteuse, et procédé et appareil d'adhésion
KR20110119785A (ko) * 2009-02-16 2011-11-02 텔레폰악티에볼라겟엘엠에릭슨(펍) 비-암호화 망 동작 해결책
CN102202367B (zh) * 2010-03-23 2015-05-06 重庆重邮信科通信技术有限公司 一种多模终端非接入层切换方法
CN102404809A (zh) * 2010-09-07 2012-04-04 中兴通讯股份有限公司 数据传输通道迁移方法及系统
CN102572816B (zh) * 2011-12-27 2014-08-06 电信科学技术研究院 一种移动切换的方法及装置
CN104219637B (zh) * 2013-05-31 2019-04-16 中兴通讯股份有限公司 一种非接入层消息的发送方法、基站及核心网设备
US10225780B2 (en) * 2016-06-01 2019-03-05 Htc Corporation Device and method of handling radio resource control connection resume procedure
CN110167081B (zh) * 2018-02-13 2022-07-26 中兴通讯股份有限公司 认证方法及装置、消息处理方法及装置、存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1933663A (zh) * 2005-09-14 2007-03-21 北京三星通信技术研究有限公司 Lte系统中支持用户设备移动性的方法
CN1949925A (zh) * 2005-10-10 2007-04-18 华为技术有限公司 一种lte技术中的平滑切换方法
CN101001446A (zh) * 2006-01-09 2007-07-18 华为技术有限公司 一种切换方法及系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100525496C (zh) * 2005-09-20 2009-08-05 展讯通信（上海）有限公司 移动通信系统中被叫端快速接收呼叫的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1933663A (zh) * 2005-09-14 2007-03-21 北京三星通信技术研究有限公司 Lte系统中支持用户设备移动性的方法
CN1949925A (zh) * 2005-10-10 2007-04-18 华为技术有限公司 一种lte技术中的平滑切换方法
CN101001446A (zh) * 2006-01-09 2007-07-18 华为技术有限公司 一种切换方法及系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8597688B2 (en) 2008-07-09 2013-12-03 Basf Se Pesticidal mixtures comprising isoxazoline compounds II

Also Published As

Publication number Publication date
CN101355785B (zh) 2011-07-20
CN101355785A (zh) 2009-01-28

Similar Documents

Publication Publication Date Title
US11582650B2 (en) Methods and system for performing handover in a wireless communication system
JP6946321B2 (ja) シームレスのハンドオーバーをサポートする方法及びｅｎｂ装置
JP6405454B2 (ja) ユーザー装置の基地局ハンドオーバ方法及び基地局、ユーザー装置
JP4440300B2 (ja) 無線通信システムの分離型媒体アクセス制御プロトコル構造と、これを用いたデータ送受信方法並びにハンドオーバー方法及びそのシステム
EP2624629B1 (fr) Gestion de transfert de données durant une opération de transfert (Handover) dans un réseau de radiocommunications
US8442007B2 (en) Bearer establishing method and system based on handover
EP3522601B1 (fr) Procédé de traitement de transfert et station de base
EP2095663B1 (fr) Procédé et agencement dans un système de télécommunication
EP1946460B1 (fr) Gestion de transfert de donnees dans un reseau de radiocommunications
WO2009012666A1 (fr) Procédé et système pour transmettre un message de couche de non-accès durant un transfert et station de base associée
EP2131619B1 (fr) Système de communication mobile, procédé de communication mobile et appareil de communication
EP3253122A1 (fr) Procédé, appareil et système de transmission de données lors d'une procédure de transfert
US20080188223A1 (en) Method, a system and a network element for performing a handover of a mobile equipment
KR101233171B1 (ko) 무선 네트워크에서의 제어 정보 송수신 방법
WO2015070445A1 (fr) Procédé et station de base utilisés pour établir des porteuses radio
WO2017173612A1 (fr) Procédé de transmission de données, équipement d'utilisateur et dispositif de réseau d'accès
JP2010536293A (ja) 無線通信ネットワークにおけるハンドオーバ方法及び機器
KR20100068248A (ko) 무선 전기통신 네트워크에서의 핸드오버 방법 및 장치
WO2017166978A1 (fr) Procédé et appareil de transmission de données, et dispositif de gestion de session
WO2009140917A1 (fr) Procédé, système et sous-système de station de base pour établir un tunnel unique dans un plan d’utilisateur
KR20230091857A (ko) 멀티캐스트 송신을 위한 방법 및 디바이스
WO2011020229A1 (fr) Procédé de traitement de données sur une liaison de relais et dispositif correspondant
WO2020173146A1 (fr) Procédé de traitement de commutation, dispositif associé, produit programme et support de stockage
WO2010081326A1 (fr) Procédé, système et noeud b évolutif pour obtenir l'état de charge de cellules
WO2009018768A1 (fr) Procédé et appareil de réacheminement de paquet de données, appareil de génération de paquet de données et système de communication

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08734100

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08734100

Country of ref document: EP

Kind code of ref document: A1