WO2004089020A1 - Procede de gestion de la mobilite d'un materiel utilisateur et systeme de communication s'y rapportant - Google Patents
Procede de gestion de la mobilite d'un materiel utilisateur et systeme de communication s'y rapportant Download PDFInfo
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- WO2004089020A1 WO2004089020A1 PCT/CN2003/000238 CN0300238W WO2004089020A1 WO 2004089020 A1 WO2004089020 A1 WO 2004089020A1 CN 0300238 W CN0300238 W CN 0300238W WO 2004089020 A1 WO2004089020 A1 WO 2004089020A1
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- 238000004891 communication Methods 0.000 title claims description 12
- 230000011664 signaling Effects 0.000 claims abstract description 121
- 238000010295 mobile communication Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000008569 process Effects 0.000 description 59
- 238000007726 management method Methods 0.000 description 23
- 238000012790 confirmation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/14—Interfaces between hierarchically different network devices between access point controllers and backbone network device
Definitions
- the present invention relates to a method for user equipment mobility management in a mobile communication system, and particularly to a broadband code division multiple access communication system when there is no Iur signaling link between a serving radio network controller and a destination radio network controller.
- the core network (CN) is connected to the UTRAN through the Iu interface, and the UTRAN is connected to the UE through the Uu interface (that is, the wireless interface), and control is performed in the Uu interface.
- the function protocol layer is the RRC layer.
- RRC protocol For a detailed description of the RRC protocol, refer to protocol documents such as TS25.311.
- FIG. 2 further shows the network structure of UTRAN, where UTRAN is composed of various radio network subsystems (RNS), which are connected to the core network through Iu interfaces, and different RNSs are connected through Iur interfaces.
- RNS radio network subsystems
- An RNS is connected by an RNC (radio network controller) and one or more Node Bs (Node B) through an Iub interface.
- Node B actually completes all the tasks in a mobile communication system.
- a Node B contains one or more cells, and a cell is the basic unit for UE access.
- Iu, Iur, Iub and other interface protocols are divided into two major categories: control plane and user plane.
- the radio protocols at the control plane application layer are RANAP (radio access network application part), RNSAP (wireless network subsystem application part), and NBAP (Node B application part).
- RANAP radio access network application part
- RNSAP wireless network subsystem application part
- NBAP Node B application part
- Figure 3 shows two cases of UE and UTRAN connection.
- RNC radio network controller
- FIG. 3 (a) Another situation is that at least one cell communicating with the UE is composed of It is controlled by another RNC (referred to as the destination RNC, that is, DRNC), and the serving RNC (SRNC) may or may not include a cell communicating with the UE, as shown in FIG. 3 (b).
- the DRNC mainly provides wireless links
- the user upper-layer protocol associated with the UE is still mainly completed by the SRNC, and the communication with the core network associated with the UE still passes through the SRNC and the core network. Iu interface.
- the UE In UTRAN of WCDMA, the UE is in idle mode after powering on and camping on the cell. At this time, the UE can receive system information and cell broadcast messages, and monitor paging from the core network. When the UE responds to a page or initiates a call, the UE must establish a RRC connection with the UTRAN through a series of signaling procedures and enter the RRC connection mode. For the specific signaling process of RRC connection establishment, please refer to 3GPP's TR25.931, TS25.331 and other protocols.
- the RRC layer has four possible states: Cell_DCH, Cell_FACH, Cell_PCH, and URA_PCH.
- the mobility management process related to the Cell_DCH state is handover, the mobility management process related to the Cell_FACH and Cell_PCH states is cell update, and the mobility management process related to the URA_PCH state is URA update.
- the UE In the Cell_DCH state, the UE has a dedicated physical channel (corresponding to one or more dedicated transmission channels DCH), and a cell having a physical link with the UE becomes an activated cell. All activated cells constitute the UE's activation set. When the activation set Number, etc. At or greater than 2, the RNC will be responsible for the uplink macro diversity and the downlink allocation. In this state, the user plane of the lur interface between the SRNC and the DRNC has an active DCH data frame link for transmitting DCH data frames.
- DCH dedicated physical channel
- the system does not allocate any dedicated physical channel to the UE, but the UE can use the common (transmission) channel random access channel (RACH (uplink)) and forward access channel (FACH (downlink)) to transmit Inactive user data.
- RACH uplink
- FACH forward access channel
- the user plane of the lur interface has an active common transmission channel (CCCH) data frame link for transmitting data frames of the common transmission channel.
- CCCH common transmission channel
- the system does not allocate any activated physical channel to the UE; at this time, UTRAN completes the mobility management of the UE through the cell update process, thereby obtaining the location information of the UE at the cell level, and the UE can receive by monitoring the PCH System page.
- the user plane of the lur interface is usually assigned a data frame link of a public transmission channel that has not been activated, which can speed up the process of the UE switching from the Cell-PCH state to the Cell-FACH state.
- the system does not allocate any activated physical channel to the UE.
- UTRAN completes the mobility management of the UE through the URA update process, thereby obtaining the position information of the UE at the URA level.
- the UE can receive by monitoring the PCH System page.
- the user plane of the lur interface usually does not allocate any public transmission channel data frame links.
- FIG. 4 shows a schematic diagram of the SRNS relocation process.
- Figure 4a shows the network status before SRNS relocation
- Figure 4b shows the network status after DRNC relocation to the current new SRNC.
- SRNS relocation process with core network and UTRAN Are related, because it changes both the iu interface and the SRNC, OUTRAN, it does not change the existing radio resources associated with the UE, but rather the upper-layer protocol of the user plane associated with the UE The entity switches from the original SRNC to the new SRNC (that is, the original DRNC).
- the SRNS relocation process is jointly completed by the SRNC and the DRNC, and the decision whether to execute the SRNS relocation process is completed by the SRNC, and it is also the SRNC that first initiates the SRNS relocation process.
- SRNS relocation signaling flow please refer to TS23.060, TR25.931 and other documents of 3GPP.
- the cell update and URA update process requires the use of RNSAP (Radio Network Subsystem Application Part) signaling of the Iur interface control plane.
- RNSAP Radio Network Subsystem Application Part
- Iur interface control plane In an actual UTRAN network, there may be cases where there is no Iur link between RNCs, for example, the link between the RNCs is overloaded or the Iur link does not exist on the topology; in addition, even if it exists Iur physical link, but some abnormal conditions may cause the RNSAP signaling link of the Iur interface control plane to fail. In this way, when the UE moves to a camped cell and there is no available Iur signaling link between the RNC to which the cell belongs and the SRNC of the UE, the cell update or URA update process will fail.
- the present invention aims at the problem of how to perform cell update and URA update across RNCs when there is no Iur signaling link between the SRNC and the destination RNC, and proposes a set of effective solutions.
- a method for user equipment mobility management in a mobile communication system includes: a core network, one or more Universal Terrestrial Radio Access Networks (UTRAN), and multiple User equipment (UE), wherein a core network communicates with UTRAN through an Iu interface;
- the UTRAN is composed of multiple wireless network systems (RNS) and communicates with one or more through a Uu interface UE communication, each RNS includes a radio network controller (RNC), and one or more nodes communicating with the RNC through an Iub interface, each node includes one or more cells, and Iur interface communication;
- UTRAN controls UE mobility management through radio resource control (RRC) signaling of the Uu interface;
- the method includes steps: the UE sends an RRC signaling message upstream to the first RNC to request UE mobility Management; the first RNC receives and transparently forwards the uplink RRC signaling message to the core network; the core network transparently forwards the uplink RRC signaling message to the second RNC
- a mobile communication system for user equipment mobility management includes: a core network, one or more Universal Terrestrial Radio Access Networks (UTRAN), and multiple User equipments (UEs), where a core network communicates with UTRAN through an Iu interface;
- the UTRAN is composed of multiple wireless network systems (RNS) and communicates with one or more UEs through a Uu interface, and each RNS includes one A radio network controller (RNC), and one or more nodes that communicate with the RNC through an Iub interface, and each node includes one or more cells, and the RNC communicates through an Iur interface;
- UTRAN wirelessly communicates through a Uu interface Resource control (RRC) signaling controls UE mobility management;
- the UE includes a device for sending an RRC signaling message to the first RNC to request UE mobility management;
- the first RNC includes a device for The device for the UE to receive an uplink RRC signaling message and forward the message to the core network;
- the RNC and the UE to which the camped cell belongs When there is no available lur signaling link between the SRNCs, the user equipment mobility management of the corresponding cell update or URA routing area update may be completed according to the method of the present invention.
- Adopting the present invention can obtain two aspects of beneficial effects: First, in actual networking, the application of the present invention can realize the cell update and URA update process across the RC when the lur link does not exist due to reasons such as cost, geographical environment, etc. Even if there is a lur link, applying the present invention can obtain better system reliability. Specifically, when the lur link is overloaded or fails, the present invention can still replace the original lur link to implement the cell update and URA update process. This improves system reliability. BRIEF DESCRIPTION OF THE DRAWINGS
- FIG. 1 is a schematic diagram of a UMTS network system structure
- FIG. 2 is a schematic diagram of a UTRAN network structure in a UMTS network system structure
- Figures 3 (a) and (b) schematically show two cases where the UE is connected to the UTRAN;
- Figures 4 (a) and (b) are schematic diagrams of the SRNS relocation process in the UMTS network system structure
- Figure 5 is the signaling process of cell update combined with SRNS relocation
- Figure 6 is the signaling process of URA update combined with SRNS relocation
- FIG. 7 is a signaling process of cell update using a common transmission channel data link of a lur user plane
- FIG. 8 is a signaling process of URA update using a lur control plane signaling link
- FIG. 9 is a signaling process of SRNS relocation in a UMTS network system structure; "RCC signaling" signaling process;
- FIG. 11 is a cross-RNC small-scale implementation without lur signaling link according to the present invention Schematic diagram of the area update method
- FIG. 12 is a schematic diagram of a process of performing a URA update method across RNCs when there is no lur signaling link according to the present invention. detailed description
- the preferred embodiment of the present invention takes the WCDMA communication system as an example, but the present invention is not limited to this.
- the method of the present invention can also be used to implement the mobile It can also be understood that, on the basis of the present invention, those skilled in the art can easily make various improvements, modifications, and variations, but it should be considered that it does not depart from the inventive principle of the present invention.
- the RRC performs evaluation, decision, and execution functions related to RRC mobility management, such as handover, preparation for handover, cell reselection, or cell update, according to the measurement results of the UE.
- CELL-FACH, CELL-PCH or The UE in the URA_PCH state may request a cell update process.
- the main purpose of the cell update process is for the UTRAN to update to the cell where the UE is currently located after the UE completes cell reselection.
- FIG. 5 is a signaling process of cell update combined with SRNS relocation.
- the cell update process using SRNS relocation mainly involves:
- the UE sends an RRC message carried by the CCCH (Common Control Channel)-a "Cell Update (Cell Update) message"-the RNC (ie, the new DRNC) to which the currently camping cell belongs, the RRC message includes the information unit u-RNTI (UTRAN wireless network temporary identifier), cell update cause (Cell Update Cause) and other information;
- CCCH Common Control Channel
- Cell Update Cell Update
- u-RNTI UTRAN wireless network temporary identifier
- Cell Update Cause cell update cause
- This RNSAP message includes the new c-RNTI and d- Information elements such as RNTI, where c-RNTI is a radio network temporary identifier of the RNC controlling the cell, and d-RNTI is a radio network temporary identifier of the destination RNC;
- the SRNC After the SRNC receives the RNSAP message, the SRNC reports to the CN through the upper layer protocol to complete the SRNS relocation.
- the specific process of the SRNS relocation will be described in detail below by referring to FIG. 9;
- the new DRNC When the new DRNC is relocated (that is, it becomes the new SRNC), it sends the RRC message carried by the DCCH (dedicated control channel) to the UE.
- DCCH dedicated control channel
- this RRC message includes a new s-RNTI information unit, and s-RNTI is the new wireless network temporary identifier of the SRNC;
- the UE sends an RRC message-a "URA Update Message"-carried by the CCCH (Common Control Channel) to the cell to which it currently resides.
- CCCH Common Control Channel
- the message includes information such as information unit u-RNTI (UTRAN radio network temporary identifier), URA update cause (URA update cause), etc .;
- information unit u-RNTI UTRAN radio network temporary identifier
- URA update cause URA update cause
- This RNSAP message includes new c-RNTI, d-RNTI, etc. Information, where c-RNTI is a wireless network temporary identifier of the RNC controlling the cell, and d-RNTI is a wireless network temporary identifier of the destination RNC;
- the SRNC After the SRNC receives the RNSAP message, the SRNC reports to the CN through the upper layer protocol to complete the SRNS relocation.
- the specific process of the SRNS relocation will be described in detail below by referring to FIG. 9;
- the UE After receiving the RRC message RA update confirmation from the new RNC, the UE sends an RRC message carried by the DCCH—JTRAN Mobility Information Confirm (UTRAN Mobility Information Confirm) to the new RNC, and updates the related information. confirm.
- DCCH—JTRAN Mobility Information Confirm UTRAN Mobility Information Confirm
- FIG. 7 is a cell update process using an Iur user plane data frame link. The steps involved include:
- the UE sends an RRC message-a "Cell Update" message carried by the CCCH (Common Control Channel) ⁇ the RNC (ie, the new DRNC) to which the currently camping cell belongs, and the message includes the information unit u-RNTI ( UTRAN wireless network temporary identifier), cell update cause (Cell Update Cause), etc.
- CCCH Common Control Channel
- RNC ie, the new DRNC
- the message includes the information unit u-RNTI ( UTRAN wireless network temporary identifier), cell update cause (Cell Update Cause), etc.
- This RNSAP message includes the new c-RNTI and d- Information elements such as RNTI, where c-RNTI is a radio network temporary identifier of the RNC controlling the cell, and d-RNTI is a radio network temporary identifier of the destination RNC;
- the SRNC After receiving the RNSAP message, the SRNC sends an RNSAP message to the new DRNC through the Iur interface between the SRNC and the new DRNC-"Common Transport Channel Resources Initialization Request";
- the new DRNC responds to this RNSAP message and sends an RNSAP message to the SRNC-"Common Transport Channel Resources Initialization Response".
- the new DRNC and SRNC establish an Iur transmission link by ALCAP;
- the SRNC After the Iur transmission link is established by using the ALCAP (Access Link Control Application Part) signaling, the SRNC sends an RRC message carried by the DCCH to the UE-"Cell Update Confirm";
- the UE After receiving the new RRC message Cell Update Confirm from the SRNC, the UE sends the RRC message carried by the DCCH-UTRAN mobile "UTRAN Mobility Information Confirm" to SRNC to confirm the updated relevant information;
- the SRNC confirms the RRC message, sends an RNSAP message-"Common Transport Channel Resource Release" to the old DRNC, and releases the Iur link resources on the common transmission channel.
- Figure 8 shows the URA update process using the Iur control plane signaling link.
- the involved processes include:
- the UE sends an RRC message, a "URA Update (URA Update) message", carried by the CCCH (Common Control Channel) to the cell to which it currently resides.
- RRC Radio Resource Control Channel
- RNC new RNC
- the message includes information such as information unit u-RNTI (UTRAN radio network temporary identifier), URA update cause (URA update cause), etc .;
- u-RNTI UTRAN radio network temporary identifier
- URA update cause URA update cause
- the new RNC After the new RC receives the RRC message, the new RNC sends an RNSAP message to the SRNC-"Uplink Signalling Transfer Indication". This message includes the new c-RNTI and d-RNTI. And other information, where c-RNTI is a wireless network temporary identifier of the RNC controlling the cell, and d-RNTI is a wireless network temporary identifier of the destination RNC;
- the SRNC After the SRNC receives the RNSAP message, the SRNC sends an RNSAP message-Downlink Signalling Transfer Indication to the new RNC ";
- the new RNC When the new RNC receives the RNSAP message, it sends the RRC message carried by the CCCH to the UE—JRA Update Confirm (URA Update Confirm).
- This message includes a new s-RNTI information element, and s-RNTI is the new RNC.
- Wireless network temporary identifier
- the cell update process using SRNS relocation is very similar to the URA update process.
- the cell update process using the Iur user plane common transmission channel data frame link There are two main characteristics, one is to establish a lur user plane common transmission channel data frame link using signaling such as the lur interface control plane RNSAP, ALCAP (Access Link Control Application Part), and the other is the cell between the SRNC and the UE. Update related RRC messages, and then use the established lur user plane common transmission channel data frame link to transmit to the new DRNC (collectively called the destination RNC).
- the URA update process of the signaling link of the lur control plane is not used to establish a data frame link of the lur user plane common transmission channel, and the RRC message sent by the SRNC to the UE is confirmed by the URA update. " The signaling link is transmitted to the new RNC (collectively referred to as the destination RNC). However, no matter which method is used, the cell update and URA update process must at least use the signaling link of the lur interface between the SRNC and the destination RNC.
- FIG. 9 The signaling flow of SRNS relocation is shown schematically in FIG. 9, where:
- the SRNC sends a RANAP message to the CN-a "Relocation Required" message
- the CN sends a RANAP message-a Relocation Request (Relocation Request) message to the destination RNC;
- ALCAP signaling establishes an Iu transmission link between the destination RNC and CN;
- the destination RNC confirms the relocation request and sends a RANAP message to the CN.
- Information-Relocation Request Acknowledge ";
- the CN sends an RNSAP message to the SRNC—Relocation Command (Relocation Command);
- the SRNC After receiving the relocation command, the SRNC sends an RNSAP message to the destination RNC—Relocation Commit ";
- the SRNC sends a "Data Forwarding" message to the destination RNC;
- the destination RNC sends a RANAP message to the CN-Relocation Detect ";
- the target RNC sends the RRC message carried by the DCCH to the UE at the same time-either JTRAN Mobility Information (UTRAN Mobility information), or "Cell Update Confirm", or RA Update Confirm (URA Update Confirm). ";
- the UE confirms the above message and sends a corresponding RRC message carried by the DCCH to the destination RNC;
- the destination RNC sends a RANAP message to the CN-Relocation Complete ";
- the CN then sends a RANAP message to the SRNC-a link release command (Iu Release Command);
- the SRNC sends a RANAP message to the CN-Iu release complete (Iu release complete), and reports to the CN that the Iu transmission link release is complete.
- the signaling step 9 shown in the figure may use three different RRC messages: if it is a separate SRNS relocation process, use JTRAN mobility information ", if it is a SRNS relocation process caused by a cell update, Then use "cell update confirmation", and if it is the SRNS relocation process caused by URA update, use URA update confirmation ".
- the SRNS relocation process is initiated by the SRNC sending a RANAP message to the CN.
- the CN sends a RANAP message positioning command to the SRNC, the Iu user plane transmission link between the CN and the destination RNC has been established. Ready for relocation.
- the handover from the SRNC to the destination RNC is started by the SRNC sending an RNSAP message to the destination RNC.
- the message carries all SRNS contexts (SRNS Contexts) associated with the UE in the SRNC.
- the destination RNC can use this information to Seamlessly re-establish communication with the UE.
- the RNSAP message positioning starts ("Step 6").
- the SRNS context can be sent by the RANAP message shown in dashed line in Figure 9 (Forward SRNS Context) "(ie, steps 6a and 6b) to complete the same function.
- the role played by the CN is actually to route all SRNS contexts associated with the UE from the SRNC to the destination RC through the Iu interface. This replaces the route through the Iur interface when the RNSAP message relocation starts.
- the present invention proposes to add a new RANAP message and send a "Forward Uplink RRC Signaling" message.
- the CN can place the destination RNC on the logical channel CCCH (Common Control Channel).
- CCCH Common Control Channel
- the uplink RRC message received on the router is routed to the SRNC through the signaling link of the Iu interface, thereby replacing the "uplink signaling Send the indication "When routing through the Iur interface signaling link.
- This newly added RANAP message is carried by the connectionless Iu control plane signaling link. It can be sent by the RNC to the CN, that is, the destination RNC directly sends the uplink RRC message it receives on the logical channel CCCH to the CN. The CN may also send it to the RNC, that is, the CN transparently forwards the message to the SRNC.
- the newly added RANAP message includes at least the following four Information Elements (ie, IE): Message Type, Source ID, Target ID, and RRC Information.
- the information element information types ", 3 ⁇ 4 ID” and “target ID” follow the IE already defined in TS25.413 of 3GPP: Message Type (Message Type) "must be included in each RANAP message and is used to identify each The message itself, "Source ID” is used to identify the SRNC, “Target ID” is used to identify the destination RNC, and their detailed definitions can be found in TS25.413.
- the information unit RC information (RRC Information) is newly defined here. It is a character string of octet with an indefinite length, that is, the entire destination RNC to be forwarded to the SRNC is received on the logical channel CCCH. To the upstream RRC message.
- FIG 10 shows the signaling process of the newly-added RANAP message "Forwarding Uplink RRC Signaling".
- the destination RNC receives the uplink RRC message from the UE that is carried on the CCCH and always contains the SRNC-ID (SRNC Identifier), which is used as the information of the message "Forward Uplink RRC Signaling"
- the unit source ID "is used to address the SRNC.
- the CN After receiving this message, the CN will directly forward the received RANAP message to the SRNC without any processing by using the information unit ID”.
- the SRNC sends an Uplink RRC Signaling ("Uplink RRC Signalling"), and uses the information element "Target ID" carried by it to know which RNC the RRC message carried comes from.
- Uplink RRC Signalling Uplink RRC Signalling
- the present invention proposes a method for performing cell update and URA update across the RNC when there is no lur signaling link between the SRNC and the destination RNC, as shown in Figs. 11 and 12 respectively.
- the following takes the cell update process as an example to further explain the method proposed by the present invention:
- the UE sends an RRC message “Cell Update” carried by the CCCH to the RNC to which the currently camping cell belongs, that is, the destination RNC, and the message includes an information element u-RNTI (IJTRAN wireless network temporary identifier), Cell update cause, etc.
- the IE is composed of the SRNC identifier SRNC-ID and the UE identifier s-RNTI (Serving Wireless Network Temporary Identifier) assigned by the SRNC;
- the target RNC judges whether the lur signaling link exists. If it exists, it performs the cell update process according to the existing technology, such as the signaling method shown in FIG. 5 or FIG. 7, otherwise, it executes The following process;
- the destination RNC sends a RANAP message to the CN to send an Uplink RRC Signaling ", where SRNC-ID constitutes the information unit source ID", and the known identifier of the destination RNC constitutes the information unit "Target ID", the entire RRC message "cell update" received is directly used as the information unit RRC information ";
- the CN After receiving the RANAP message sent by the destination RNC, the CN sends the uplink RRC signaling "using the information element 3 ⁇ 4 ID", and directly forwards the received RANAP message to the SRNC without any processing;
- the SRNC After receiving the RANAP message sent by the CN and sending the uplink RRC signaling ", the SRNC takes out the RRC message" Cell Update "in the information element HRC information” and uses the destination RNC indicated by the information element "Target ID", Initiate an SRNS relocation process that does not require a lur interface, that is, an SRNS relocation process that uses a RANAP message to send an SRNS context to transmit the SRNS context;
- the UE After receiving the RRC message "Cell Update Confirmation" from the new SRNC, the UE sends the RRC message TRAN Mobility Information Confirm (UTRAN Mobility Information Confirm) to confirm the updated related information.
- TRAN Mobility Information Confirm UTRAN Mobility Information Confirm
- the UE sends an RRC message URA Update ("URA Update") carried by the CCCH to the RNC to which the currently camping cell belongs, which is the destination RNC.
- This message contains the information element u-RNTI (UTRAN wireless network temporary identifier), URA URA update cause, etc.
- the IE consists of the SRNC identifier SRNC-ID and the UE identifier s-RNTI (Temporary Identifier of the Serving Wireless Network) assigned by the SRNC;
- the target RNC judges whether the Iur signaling link exists. If it exists, it executes the URA update process according to the existing technology, such as the signaling method shown in FIG. 6 or FIG. 8. Otherwise, it executes The following process;
- the destination RNC sends a RANAP message to the CN to send an Uplink RRC Signaling ("forward uplink RRC Signallin"), where SRNC-ID constitutes the information unit, ID ", and the known identifier of the destination RNC constitutes the information unit "Target ID", the entire RRC message JRA update (URA Update) received "directly as the information unit RRC information";
- the CN After receiving the RANAP message sent by the destination RNC, the CN sends the Forward Rlink Signaling (Forward Uplink RRC Signalling) "and uses the information element 3 ⁇ 4 ID" to directly forward the received RANAP message to SRNC, without any processing;
- Forward Rlink Signaling Forward Uplink RRC Signalling
- the SRNC After receiving the RANAP message sent by the CN and sending the uplink RRC signaling, the SRNC takes out the RRC message URA update in the information element RC information, and uses the destination RNC indicated by the information element "target ID" to initiate The SRNS relocation process without the Iur interface, that is, the SRNS relocation process using the RANAP message to send the SRNS context (Forward SRNS Context) ";
- the UE After receiving the RRC message URA update confirmation from the new SRNC, the UE sends the RRC message JTRAN Mobility Information Confirmation to confirm the updated related information.
- the UE in a mobile communication system for managing user equipment mobility, includes a device for sending an RRC signaling message to the first RNC to request the UE for mobility management;
- the target RNC includes a device for Means for receiving an uplink RRC signaling message from the UE and forwarding the message to a core network;
- the core network includes means for transparently forwarding the uplink RRC signaling message to a serving RNC;
- the serving RNC includes means for receiving And a device that performs the requested mobility management by using the forwarded uplink RRC signaling message.
Description
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003236094A AU2003236094A1 (en) | 2003-04-03 | 2003-04-03 | Method for user equipment mobility management and communication system tereof |
JP2004570014A JP4448036B2 (ja) | 2003-04-03 | 2003-04-03 | ユーザ装置の移動性管理方法及びその通信システム |
US10/551,426 US20060223532A1 (en) | 2003-04-03 | 2003-04-03 | Method for user equipment mobility management and communication system |
CNB038261448A CN100372426C (zh) | 2003-04-03 | 2003-04-03 | 用于用户设备移动性管理的方法及其通信系统 |
PCT/CN2003/000238 WO2004089020A1 (fr) | 2003-04-03 | 2003-04-03 | Procede de gestion de la mobilite d'un materiel utilisateur et systeme de communication s'y rapportant |
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PCT/CN2003/000238 WO2004089020A1 (fr) | 2003-04-03 | 2003-04-03 | Procede de gestion de la mobilite d'un materiel utilisateur et systeme de communication s'y rapportant |
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JP (1) | JP4448036B2 (zh) |
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JP2011524140A (ja) * | 2008-06-12 | 2011-08-25 | サムスン エレクトロニクス カンパニー リミテッド | ホームノード−bゲートウェイで無効なユーザ端末情報を除去する方法 |
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- 2003-04-03 WO PCT/CN2003/000238 patent/WO2004089020A1/zh active Application Filing
- 2003-04-03 JP JP2004570014A patent/JP4448036B2/ja not_active Expired - Fee Related
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Publication number | Priority date | Publication date | Assignee | Title |
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CN100442917C (zh) * | 2005-03-17 | 2008-12-10 | 华为技术有限公司 | 一种呼叫连接建立方法 |
WO2007107117A1 (fr) * | 2006-03-21 | 2007-09-27 | Huawei Technologies Co., Ltd. | Procédé, dispositif et système pour la gestion de mobilité de dispositif utilisateur |
CN101499868B (zh) * | 2008-01-31 | 2011-12-28 | 中兴通讯股份有限公司 | 多媒体广播组播业务Iur同步承载的建立方法 |
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WO2010142166A1 (zh) * | 2009-06-12 | 2010-12-16 | 中兴通讯股份有限公司 | 一种rrc连接建立过程中小区重选的处理方法和装置 |
Also Published As
Publication number | Publication date |
---|---|
AU2003236094A1 (en) | 2004-10-25 |
CN1759624A (zh) | 2006-04-12 |
US20060223532A1 (en) | 2006-10-05 |
CN100372426C (zh) | 2008-02-27 |
JP4448036B2 (ja) | 2010-04-07 |
JP2006515484A (ja) | 2006-05-25 |
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