WO2008106880A1 - Procédés, systèmes de communication sans fil, stations de relais mobiles et stations de base d'entrée de réseau ms - Google Patents

Procédés, systèmes de communication sans fil, stations de relais mobiles et stations de base d'entrée de réseau ms Download PDF

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Publication number
WO2008106880A1
WO2008106880A1 PCT/CN2008/070351 CN2008070351W WO2008106880A1 WO 2008106880 A1 WO2008106880 A1 WO 2008106880A1 CN 2008070351 W CN2008070351 W CN 2008070351W WO 2008106880 A1 WO2008106880 A1 WO 2008106880A1
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Prior art keywords
mrs
cids
management
service
allocated
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PCT/CN2008/070351
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English (en)
Chinese (zh)
Inventor
Ting Yang
Guohui Zou
Zheng Shang
Yan Peng
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Huawei Technologies Co., Ltd.
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Publication of WO2008106880A1 publication Critical patent/WO2008106880A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/005—Moving wireless networks

Definitions

  • the present invention relates to wireless communication technologies, and more particularly to a mobile station (MS, Mobile Station) access method, a wireless communication system, a mobile relay station, and a base station.
  • RS Relay Station
  • MS mobile station
  • RS mobile relay station
  • MRS mobile relay station
  • the MRS moves with a large number of MSs and assists them in moving.
  • a group node can be defined as a plurality of nodes with the same movement rule, and the movement of the group node can be referred to as group movement, and multiple nodes in the group node exhibit similar movement paths and movement timings, which are almost simultaneously from a network entity. Coverage enters another network entity coverage.
  • the group mobility problem in IEEE802.16j refers specifically to the case where the MRS and its subordinate MS move simultaneously.
  • the RS is a fixed RS (fixed RS) or a nomadic RS (nomadic RS), including: MS and MRS are physically synchronized; MS and MRS are time-shifted, The frequency offset adjustment; the MS performs an initial ranging request to the MRS; the MRS forwards the ranging message to the BS by using its own Basic CID (Connection Identifier); if the BS receives the Basic CID of the RS as the header CID and includes the MS The media access control (MAC, Media Access Control) address ranging request (RNG-REQ) message, the BS allocates Basic and Primary CIDs to the MS, and responds through the Basic CID of the RS, and the response message includes the MS allocation.
  • MAC Media Access Control
  • the subsequent network access process is the same as the process in the 802.16e standard, but the information between the MS and the BS. The interaction is forwarded by the RS and will not be described here.
  • the scenario of RS movement is not considered, and the case where a large number of MSs move with RS is not considered.
  • the connection identifier (CIDs) management method in the existing MS network access process when the RS performs handover, all the MSs under it also need to be switched, and all MSs switch at almost the same time, the access link and The CIDs of the trunk link must be replaced. This will increase the signaling overhead.
  • the air interface access synchronization process causes a large number of conflicts, which has a huge impact on the processing of network devices and may even cause network congestion.
  • the embodiment of the present invention provides a method for the MS to access the network, and another aspect provides a wireless communication system, a mobile relay station, and a base station, which reduces the air interface signaling overhead in the group handover process.
  • a mobile station MS network access method comprising:
  • the mobile relay station MRS receives the initial ranging request from the MS, allocates a first management connection identifier CIDs to the MS, and sends the first management CIDs to the base station BS;
  • the BS receives the first management CIDs, allocates second management CIDs to the MS, and sends the second management CIDs to the MRS, and performs group information update according to the first management CIDs;
  • the MRS receives the second management CIDs, establishes a mapping relationship between the first and second management CIDs, and sends the second management CIDs to the MS;
  • a mobile station MS network access method comprising:
  • the mobile relay station MRS receives the initial ranging request from the MS, allocates a management connection identifier CIDs to the MS, and sends it to the BS through the management connection tunnel;
  • the MRS and the BS perform information interaction in a subsequent network access process by using the management connection tunnel.
  • a mobile station MS network access method comprising:
  • the MS sends a basic capability negotiation request to the MRS; the MRS receives the basic capability negotiation request, and sends a status to the access service network gateway ASN-GW through the base station BS. Transmitting a request, notifying the ASN-GW that a new MS is to enter the network, and the BS acquiring related group information in the state transition request to perform group information maintenance;
  • the MS and the MRS perform a subsequent network access process, including: an authentication authentication, a registration, and a service connection establishment process.
  • the MRS performs information through the BS and the ASN-GW. Interaction.
  • a wireless communication system includes: a mobile relay station MRS, an MS, a base station BS,
  • the mobile relay station MRS configured to receive an initial ranging request from the MS, allocate a first management connection identifier CIDs to the MS, and send the same to the BS; receive second management CIDs from the BS And establishing a mapping relationship between the first and second management CIDs, and sending the first management CIDs to the MS; and forwarding, between the MS and the BS, in a subsequent network access procedure according to the mapping relationship Interaction information;
  • the BS is configured to receive the first management CIDs, allocate second management CIDs to the MS, and send the second management CIDs to the MRS; perform group information update according to the first management CIDs; Performing information interaction between the MRS and the MS for subsequent network access processes;
  • the MS is configured to receive the first management CIDs, and perform information interaction between the MRS and the BS for a subsequent network access process.
  • a mobile relay station MRS comprising: a management CIDS mapping unit and an interactive information forwarding unit,
  • the management CIDs mapping unit is configured to receive an initial ranging request from the MS, allocate a first management CIDs to the MS, and send the same to the BS; and send the first management CIDs to the MS Receiving a second management CIDs from the BS, establishing a mapping relationship between the first and second management CIDs;
  • the interaction information forwarding unit is configured to forward the MS and the foregoing in the subsequent network access process according to the mapping relationship
  • a base station BS comprising: a ranging request processing unit, a group information updating unit, and a subsequent network access processing unit, the ranging request processing unit, configured to receive first management CIDs from the MRS, for the MS Allocating a second management CIDs to be sent to the MRS;
  • the group information updating unit is configured to update the group information saved by the first management CIDs according to the first management CIDs; the subsequent network access processing unit is configured to perform information interaction between the MRS and the MS for subsequent network access processes.
  • a wireless communication system includes: a mobile relay station MRS, an MS, a base station BS,
  • the mobile relay station MRS is configured to receive an initial ranging request from the MS, allocate management CIDs to the MS, and send the management CIDs to the BS through a management connection tunnel; and send the management CIDs to the MS; Forwarding the interaction information between the MS and the BS in the subsequent network access process, and interacting with the information in the subsequent network access process by the BS through the management connection tunnel;
  • the BS is configured to receive the management CIDs, update the group information according to the management CIDs, and perform information interaction in the subsequent network access process with the MRS through the management connection tunnel;
  • the MS is configured to receive the management CIDs, and perform a subsequent network access process with the BS by using the MRS.
  • a mobile relay station MRS includes: a management CIDs allocation mapping unit and an information forwarding unit,
  • the management CIDs allocation mapping unit is configured to receive an initial ranging request from the MS, allocate management CIDs to the MS, and send the same to the BS through a management connection tunnel; and send the management CIDs to the MS;
  • the information forwarding unit forwards the interaction information between the MS and the BS in the subsequent network access process, and interacts with the information in the subsequent network access process by the BS through the management connection tunnel.
  • a base station BS includes: a group information update unit and a subsequent network access execution unit,
  • the group information updating unit is configured to receive management CIDs from the MRS, and update the group information saved by the management CIDs according to the management CIDs;
  • the subsequent network access process execution unit is configured to perform information interaction with the MRS in the subsequent network access process by using the management connection tunnel.
  • a wireless communication system comprising: a mobile relay station MRS, an MS, a base station BS, and an access service network gateway ASN-GW, wherein the MS is configured to perform parameter adjustment and initial ranging with the MRS, and send a basic to the MRS. a capability negotiation request; performing authentication authentication, registration, and service connection establishment with the MRS;
  • the MRS is configured to perform parameter adjustment and initial ranging with the MS, receive the basic capability negotiation request, and send a state transition request to the ASN-GW by using the BS, to notify the ASN-GW that there is a new one.
  • the MS is to enter the network; perform authentication authentication, registration, and service connection establishment with the MS;
  • the BS is configured to receive a state transition request from the MRS, obtain related group information, perform group information maintenance, and implement information forwarding between the MRS and the ASN-GW.
  • a mobile relay station MRS comprising: a state transition requesting unit and an authentication, registration, and service connection establishing unit; the state transition requesting unit, configured to perform parameter adjustment and initial ranging with the MS, and receive from the MS
  • the basic capability negotiation request the BS sends a state transition request to the ASN-GW, and notifies the ASN-GW that a new MS wants to enter the network;
  • the authentication, registration, and service connection establishing unit is configured to perform authentication, registration, and service connection establishment with the MS.
  • a base station BS includes: a group information maintenance unit and an information forwarding unit,
  • a group information maintenance unit configured to acquire related group information according to the state transition request from the MRS, and perform group information maintenance
  • An information forwarding unit configured to implement information forwarding between the MRS and the ASN-GW, including receiving a state transition request from the MRS, sending the state transition request to the ASN-GW, and notifying the ASN- GW has a new MS to enter the network.
  • an MS network access method, a wireless communication system, and a mobile relay provided by an embodiment of the present invention.
  • the station and the base station allocate CIDs to the MS through the MRS and the BS respectively, and the MRS maintains the mapping relationship between the two sets of CIDs, so that the CID information of the access link does not change during the group mobility switching process, and only the target BS is the MRS.
  • All the MSs under the MS are assigned the corresponding trunk link CID, and the MRS can update the corresponding CID mapping relationship. This reduces the air interface signaling overhead when a large number of MSs switch at the same time, and reduces the network load.
  • Another MS network access method connect the MRS and the BS through a tunnel, and during the group mobility switching process, the CID information of the access link does not change,
  • the target BS re-allocates the tunnel for the MRS, which reduces the air interface signaling overhead when a large number of MSs are simultaneously switched, and reduces the network load.
  • the MS network access method, the wireless communication system, the mobile relay station, and the base station provided by the embodiments of the present invention can ensure that the access link does not change during the group mobility switching process, and greatly reduce the air interface signaling overhead when the MS is simultaneously switched. , reduce the burden on the network.
  • Embodiment 1 is a flowchart of Embodiment 1 of an MS network access method according to the present invention
  • FIG. 2 is a flow chart of establishing a service connection in the embodiment shown in FIG. 1;
  • Embodiment 3 is a flowchart of establishing a service connection of Embodiment 2 of a method for accessing a network according to the present invention
  • Embodiment 4 is a flowchart of establishing a service connection of Embodiment 3 of a method for accessing a network according to the present invention
  • FIG. 5 is a flowchart of establishing a service connection according to Embodiment 4 of the MS network access method according to the present invention.
  • Embodiment 5 of an MS network access method according to the present invention.
  • FIG. 7 is a flow chart of establishing a service connection in the embodiment shown in FIG. 6;
  • FIG. 8 is a flowchart of establishing a service connection according to Embodiment 6 of the MS network access method according to the present invention.
  • Embodiment 9 is a flowchart of Embodiment 7 of a method for accessing a network according to the present invention.
  • FIG. 10 is a structural diagram of Embodiment 1 of a wireless communication system according to the present invention.
  • Embodiment 11 is a structural diagram of Embodiment 2 of a wireless communication system according to the present invention.
  • FIG. 12 is a structural diagram of Embodiment 3 of a wireless communication system according to the present invention.
  • the mobile relay station MRS receives the initial ranging request from the MS, allocates a first management connection identifier CIDs to the MS, and sends the first management CIDs to the base station BS;
  • the BS receives the first management CIDs, allocates the second management CIDs to the MS, and sends the second management CIDs to the MRS, according to the A management CIDs for group information update;
  • the MRS receives the second management CIDs, establishes a mapping relationship between the first and second management CIDs, and sends the second management CIDs to the MS;
  • the MRS forwards the interaction information between the MS and the BS in the subsequent network access process according to the mapping relationship.
  • FIG. 1 is a flowchart of Embodiment 1 of an MS network in accordance with the present invention.
  • the MRS establishes a mapping relationship between itself and the two sets of CIDs allocated by the BS to the MS, and the MS initiates a service connection establishment, and the BS separately enjoys the key.
  • the MRS allocates CIDs to the MS, and the BS also allocates CIDs to the MS.
  • the CIDs allocated by the BS to the MS are unknown to the MS, and the mapping relationship between the two sets of CIDs is maintained on the MRS.
  • the CID is replaced in the message header.
  • the BS can update the group information (MS-Info, MRS-Info) according to the network access condition of the MS, and the MRS also updates the mapping relationship between the two sets of CIDs.
  • the group information may include: address information of the MS, CIDs information, and identifier information of the MRS.
  • the process includes:
  • step 101 the MS performs physical synchronization with the MRS.
  • Step 102 The MS and the MRS perform time offset and frequency offset adjustment.
  • Step 103 The MS performs an initial Ranging request to the MRS, and requests the MRS to allocate management CIDs, including: Basic CIDs and Primary CIDs.
  • Step 104 The MRS sends the management CIDs allocated to the MS to the BS through the Basic CID of the MRS in the RNG-REQ message, and may also send the message to the BS through other messages, and request the BS to allocate management CIDs to the MS.
  • Step 105 The BS receives the Basic CID whose message header CID is the MRS, and includes the MS MAC address and the RNG-REQ message of the management CIDs allocated by the MRS to the MS, then the BS responds to the request, and the management CIDs allocated by the BS to the MS are The ranging response message (RNG-RSP) is sent to the MRS; the management CIDs information allocated by the MRS for the MS is saved, and the group information maintenance update is performed.
  • RNG-RSP ranging response message
  • Step 106 After receiving the ranging response message sent by the BS, the MRS saves the management CIDs allocated by the BS to the MS, and the management CIDs allocated to the MS by the MRS are returned to the MS through the RNG-RSP message, and the MRS establishes the two sets of management CIDs. The mapping relationship between them. After receiving the RNG-RSP containing the management CIDs allocated by the MRS for the MS, the MS performs the subsequent network access process.
  • Step 107 The MS performs capability negotiation with the BS. After receiving the capability negotiation request message sent by the MS, the MRS replaces the Basic CID allocated by the MS in the message header with the Basic CID allocated by the MS for the MS according to the mapping relationship between the two sets of management CIDs, and forwards the basic CID to the BS; The capability negotiation request message sends a capability negotiation response message to the MRS;
  • the MRS After receiving the capability negotiation response message sent by the BS, the MRS replaces the basic CID allocated by the MS in the message header with the Basic CID allocated by the MRS for the MS according to the mapping relationship between the two management CIDs, and forwards the packet to the MS for processing.
  • Step 108 The MS and the BS perform authentication authentication.
  • the replacement of the CID in the corresponding header is consistent with step 107.
  • step 109 the MS registers with the BS.
  • the replacement of the CID in the corresponding header is consistent with step 107.
  • Step 110 The MS establishes a service connection with the BS, and the establishment process is as shown in FIG. 2 .
  • the MRS Since security is established between the BS and the MS, the MRS cannot change the content of the message body of the Dynamic Service Addition (DSA).
  • DSA Dynamic Service Addition
  • Step 201 After receiving the service connection establishment request message sent by the MS, the MRS allocates service CIDs to the MS, and performs message header CID replacement according to the mapping relationship between the two sets of management CIDs, and after the replaced service connection establishment request message The service CIDs allocated by the additional MRS for the MS are handed over to the BS.
  • Step 202 After receiving the service connection establishment request message from the MRS, the BS allocates service CIDs to the MS, and places the service CIDs allocated by the MRS for the MS into the message payload of the service connection establishment response message, and the response message The service CIDs allocated by the BS to the MS are then appended to the MRS.
  • the BS may return a reception response message to the MRS, and the MRS receives the reception response message and sends the response message to the MS.
  • Step 203 After receiving the service connection setup response message from the BS, the MRS obtains the service CIDs allocated by the BS attached to the MS, and replaces the message header CID with the MRS according to the mapping relationship between the two sets of management CIDs.
  • the management CIDs allocated by the MS forwards the received service connection establishment response message to the MS, and establishes a mapping relationship between the two sets of service CIDs.
  • the MS may further send an acknowledgement message to the MRS, and the MRS forwards the received acknowledgement message to the BS.
  • the MS completes the network access process under MRS. If the MS fails to access the network, the BS updates the group information again, and the MRS also updates the mapping relationship between the two sets of CIDs.
  • the second embodiment of the MS network access method of the present invention the MRS establishes a mapping relationship between the two sets of CIDs allocated by the MS and the MS, and the MS initiates a service connection establishment, and the MRS shares a key with the BS.
  • the MRS allocates CIDs to the MS, and the BS also allocates CIDs to the MS.
  • the CIDs allocated by the BS to the MS are unknown to the MS, and the mapping relationship between the two sets of CIDs is maintained on the MRS.
  • the relevant management message needs to be sent to the BS via the MRS, and the CID is replaced in the message header.
  • the BS can update the group information according to the network access situation of the MS, and the MRS also updates the mapping relationship between the two sets of CIDs.
  • the network access process of the MS is different from the embodiment shown in FIG. 1 in the process of establishing a service connection. As shown in FIG. 3, the process includes:
  • Step 301 The MS establishes a service connection with the BS. After the MRS and the BS share the key, the MRS receives the service connection establishment request message sent by the MS, and allocates the service CIDs to the MS, and replaces the CID in the message header and forwards the message to the BS.
  • Step 302 After receiving the service connection establishment request message sent by the MRS, the BS allocates service CIDs to the MS.
  • the message body of the connection setup response message includes the service CIDs allocated by the BS for the MS, and the primary CID assigned by the BS for the MS is sent to the MRS for the CID of the message header.
  • the BS may return a reception response message to the MRS, and the MRS receives the reception response message and sends the response message to the MS.
  • Step 303 After receiving the service connection setup response message from the BS, the MRS obtains and saves the service CIDs allocated by the BS carried in the message for the MS; reconstructs the service connection establishment response message, and fills the MRS of the message body in the response message
  • the service CIDs allocated by the MS are sent to the MS as the CID of the message header, and the MRS establishes the mapping relationship between the two sets of service CIDs.
  • the MS may further send an acknowledgement message to the MRS, and the MRS forwards the received acknowledgement message to the BS.
  • the MS completes the network access process under MRS. If the MS fails to access the network, the BS updates the group information again, and the MRS also updates the mapping relationship between the two sets of CIDs.
  • the third embodiment of the present invention is as follows:
  • the MRS establishes a mapping relationship between the two sets of CIDSs allocated by the MS and the MS, and the BS initiates a service connection establishment, and the BS separately enjoys the key.
  • the MRS and the BS respectively allocate CIDs to the MS, but the CIDs allocated by the BS to the MS are unknown to the MS, and the mapping relationship between the two sets of CIDs is maintained on the MRS.
  • the message header CID is replaced.
  • the BS can update the group information according to the network access situation of the MS, and the MRS also updates the mapping relationship between the two sets of CIDS.
  • the service connection establishment process includes:
  • the BS establishes a service connection with the MS. Due to the BS's exclusive key, MRS cannot change the contents of the DSA related message body.
  • Step 401 The BS brings the service CIDs allocated for the MS to the MRS through the BS-initiated service connection establishment request message.
  • Step 402 After receiving the service connection establishment request message from the BS, the MRS obtains and saves the service CIDs allocated by the BS for the MS, allocates the service CIDs to the MS, and carries the service CIDs allocated by the MRS to the MS in the service connection establishment. The response message is returned to the BS.
  • Step 403 After receiving the service connection setup response message from the MRS, the BS obtains the service CIDs allocated by the MRS for the MS, constructs a new service connection establishment request message, fills the message body with the service CIDs allocated by the MRS for the MS, and passes the BS.
  • the Primary CID assigned to the MS is sent to the MRS for the CID of the message header.
  • the BS may return a reception response message to the MRS, and the MRS receives the reception response message and sends the response message to the MS.
  • Step 404 After receiving the new service connection establishment request message from the BS, the MRS allocates the Primary to the MS by using the MRS.
  • the CID in the CID replacement header is forwarded to the MS.
  • the MRS establishes a mapping relationship between the two sets of service CIDs.
  • the MS may further send an acknowledgement message to the MRS, and the MRS forwards the received acknowledgement message to the BS.
  • the MS completes the network access process under MRS. If the MS fails to access the network, the BS updates the group information again, and the MRS also updates the mapping relationship between the two sets of CIDS.
  • the fourth embodiment of the present invention is as follows:
  • the MRS establishes a mapping relationship between the two sets of CIDSs allocated by the MS and the MS, and the BS initiates a service connection establishment, and the RS shares a key with the BS.
  • the MRS and the BS respectively allocate CIDs to the MS, but the CIDs allocated by the BS to the MS are unknown to the MS, and the mapping relationship between the two sets of CIDs is maintained on the MRS.
  • the message header CID is replaced.
  • the BS can update the group information according to the network access situation of the MS, and the MRS also updates the mapping relationship between the two sets of CIDS.
  • the service connection establishment process includes:
  • Step 501 The BS sends the service CIDs allocated for the MS to the MRS by using a service connection establishment request message initiated by the BS.
  • Step 502 After receiving the service connection establishment request message from the BS, the MRS acquires and saves the service CIDs allocated by the BS for the MS, allocates service CIDs to the MS, establishes a mapping relationship between the two sets of service CIDs, and constructs a new service connection.
  • a request message is established, and the service CIDs allocated by the MRS for the MS are filled in the message body, and the Primary CID allocated by the MRS for the MS is forwarded to the MS as the CID in the message header.
  • Step 503 After receiving the service connection establishment request message from the MRS, the MS returns a reception response message to the MRS. After receiving the reception response message sent by the MS, the MRS replaces the CID in the message header and forwards the message to the BS. This step is an optional step.
  • the MS completes the network access process under MRS. If the MS fails to access the network, the BS updates the group information again.
  • MRS also updates the mapping between the two sets of CIDS.
  • the first MS network access method allocates CIDs to the MS through the MRS and the BS respectively, and the MRS maintains the mapping relationship between the two sets of CIDs, so that the CID information of the access link is not in the group mobile switching process.
  • the change occurs, and only the target BS allocates the corresponding relay link CID to all the MSs in the MRS, and the MRS performs the corresponding CID mapping relationship update, thereby reducing the air interface signaling overhead of a large number of MS simultaneous handovers, and reducing the network. burden.
  • the MS After the MS accesses the network by using the first method, the MS reconnects after accessing the network and the interaction information with the BS during the handover process, and the MRS still performs the message header according to the mapping relationship between the two sets of management CIDs that have been established. After the CID is replaced, the MRS replaces the message header with the corresponding management CID allocated by the MRS to the MS when forwarding the information sent by the BS to the MS. When forwarding the information sent by the MS to the BS, the message header is replaced by the BS as the MS. The corresponding management CID assigned.
  • the method for the second MS to access the network includes:
  • the mobile relay station MRS receives the initial ranging request from the MS, allocates a management connection identifier CIDs to the MS, and sends it to the BS through the management connection tunnel;
  • the BS receives the management CIDs, and updates the group information according to the management CIDs;
  • MRS will send management CIDs to MS
  • the MRS and the BS exchange information in the subsequent network access process through the management connection tunnel.
  • the fifth embodiment of the MS network access method of the present invention the MRS and the BS are connected through a tunnel, and the MS initiates a service connection establishment process, and the BS exclusively enjoys the security key.
  • MRS assigns CIDs to the MS.
  • the BS allocates related tunnels to the MRS and maintains the group relationship.
  • the tunnel is divided into a management connection tunnel and a service connection tunnel.
  • the MRS and the BS need to communicate with each other through the corresponding management connection tunnel. If the MS fails to access the network, the BS updates the group relationship again.
  • FIG. 6 is a flowchart of Embodiment 5 of a method for accessing a network according to the present invention, where the process includes:
  • Step 601 The MS performs physical synchronization with the MRS.
  • Step 602 The MS and the MRS perform time offset and frequency offset adjustment.
  • Step 603 The MS sends an initial ranging request to the MRS, requesting the MRS to allocate management CIDs thereto.
  • Step 604 After receiving the initial ranging request from the MS, the MRS allocates management CIDs to the MS, carries the CIDs in the ranging request message, and sends the information to the BS through the management connection tunnel between the BS and the MRS.
  • Step 605 The BS receives the ranging request message from the MRS, and sends a ranging response message to the MRS in the corresponding management connection tunnel, and updates the group information saved by the received information according to the information carried in the received ranging request message.
  • Step 606 After receiving the ranging response message from the BS, the MRS carries the management CIDs allocated by the MRS to the MS in the ranging response message, and sends the message to the MS.
  • Step 607 The MS sends a capability negotiation request message to the MRS, where the CID of the message header is the Basic CID allocated by the MRS to the MS.
  • the MRS After receiving the capability negotiation request message sent by the MS, the MRS is encapsulated in the corresponding management connection tunnel and sent to the BS.
  • the CID assembly response message After receiving the capability negotiation request message from the MRS, the CID assembly response message is encapsulated in the corresponding management connection tunnel and sent to the MRS. After receiving the response message, the MRS decapsulates and forwards the packet to the MS.
  • Step 608 The MS and the BS perform authentication authentication.
  • the message forwarding process is the same as step 607.
  • step 609 the MS registers with the BS.
  • the message forwarding process is the same as step 607.
  • Step 610 The MS establishes a service connection with the BS.
  • the establishment process is shown in Figure 7:
  • Step 701 After receiving the service connection establishment request message sent by the MS, the MRS allocates the service CIDs to the MS, and adds the service CIDs allocated by the MRS to the MS after the request message, and the encapsulation is sent to the BS in the corresponding management connection tunnel.
  • Step 702 After receiving the service connection establishment request message from the MRS, the BS decapsulates and responds, and sets the MRS as The service CIDs allocated by the MS are placed in the message body of the service connection establishment response message, and the service connection establishment response message is constructed by using the same CID as the received request message header, and the constructed service connection establishment response message is encapsulated in the corresponding management connection. Sent to the MRS in the tunnel.
  • Step 703 After receiving the service connection setup response message from the BS, the MRS decapsulates and forwards the packet to the MS.
  • the sixth embodiment of the MS network access method is as follows: The MRS and the BS are connected through a tunnel, and the BS initiates a service connection establishment process, the BS exclusively uses the security key, and the MRS allocates CIDs to the MS.
  • the difference between this embodiment and the fifth embodiment lies in the service connection establishment process.
  • the service connection establishment process initiated by the BS is as shown in FIG. 8 in this embodiment, and includes the following steps:
  • Step 801 The service connection establishment request message initiated by the BS is sent to the MRS through a corresponding management connection tunnel.
  • Step 802 After receiving the service connection establishment request message from the BS, the MRS allocates service CIDs to the MS, and carries the service CIDs allocated by the MS to the service connection establishment request response message, and sends the message to the BS through the corresponding management connection tunnel. .
  • Step 803 After receiving the service connection establishment request response message from the MRS, the BS decapsulates and constructs a new service connection establishment request message, and fills the message body of the request message with the service CIDs allocated by the MRS for the MS, and the CID of the message header is The Primary CID assigned by the MRS to the MS is encapsulated in the corresponding management connection tunnel and sent to the MRS.
  • Step 804 After receiving the new service connection establishment request message from the BS, the MRS decapsulates and forwards the message to the MS. At this point, the MS completes the network access process under MRS. If the MS fails to access the network, the BS updates the group information again.
  • the second MS network access method provided by the embodiment of the present invention connects the MRS and the BS through a tunnel, and ensures that the CID information of the access link does not change during the group mobility switching process, and only the target BS re-allocates the tunnel for the MRS.
  • the air interface signaling overhead when a large number of MSs are simultaneously switched is reduced, and the network burden is reduced.
  • the MRS and the BS After the MS accesses the network by using the second method, the MRS and the BS still exchange information through the established management connection tunnel during the network exit and handover process after the MS accesses the network; the MRS and the MS still allocate the MS through the MRS. Manage CIDs as message headers for information interaction.
  • the MS After the MS and the MRS perform parameter adjustment and initial ranging, the MS sends a basic capability negotiation request to the MRS.
  • the MRS receives the basic capability negotiation request, and sends a state transition request to the access service network gateway ASN-GW through the base station BS, and notifies the ASN-GW that a new MS wants to enter the network, and the BS acquires the relevant group in the state transition request.
  • Information for group information maintenance ;
  • the subsequent network access process of the MS and the MRS includes: authentication authentication, registration, and service connection establishment process, in subsequent In the network access process, the MRS exchanges information with the ASN-GW through the BS.
  • the seventh embodiment of the present invention is that the MRS is powerful enough to implement all the functions of the existing BS.
  • the BS function is weakened and is only used to maintain group information and complete information transmission between MRS and ASN-GW.
  • the network access process of the MS is as shown in Figure 9, which includes the following steps:
  • step 901 the MS performs physical synchronization with the MRS.
  • Step 902 The MS and the MRS perform parameter adjustment and initial ranging.
  • Step 903 The MS initiates a basic capability negotiation request to the MRS.
  • Step 904 The MRS receives the basic capability negotiation request of the MS, and sends a NetEntry MS State Change Request message to the ASN-GW to notify the ASN-GW that a new MS wants to enter the network, and the message needs to be transited through the BS.
  • the BS can obtain related information in the message for group information maintenance.
  • Step 905 After receiving the state transition request message from the MRS forwarded by the BS, the ASN-GW returns a state transition response message (NetEntry MS State Change Response), and the message is forwarded to the MRS through the BS.
  • a state transition response message NetEntry MS State Change Response
  • Step 906 After receiving the status transition response message, the MRS sends a capability negotiation response message to the MS.
  • Step 907 The MRS sends a status transition confirmation message to the ASN-GW to confirm that the capability negotiation response message has been sent to the MS. This step is an optional step.
  • Step 908 The MS and the MRS perform authentication authentication.
  • the related interaction process between the MRS and the ASN-GW is forwarded by the BS.
  • Step 909 the MS sends a registration request to the MRS.
  • Step 910 After receiving the registration request sent by the MS, the MRS sends a state transition request message to the ASN-GW to perform some information negotiation with the ASN-GW. This message is forwarded to the ASN-GW through the BS.
  • Step 911 The ASN-GW performs a response process, and sends a state transition response message to the MRS through the BS.
  • Step 912 After receiving the status transition response message, the MRS sends a registration response message to the MS.
  • Step 913 The MRS sends a status change confirmation message to the ASN-GW through the BS, indicating that the registration response message has been sent to the MS. This step is an optional step.
  • Step 914 the MS and the MRS service connection establishment process.
  • the MRS forwards information through the BS and the ASN-GW.
  • the MS completes the relevant network access process. If the MS fails to access the network, the BS updates the group information.
  • the third MS network access method provided by the embodiment of the present invention can ensure that the access link does not change during the group mobility switching process, and greatly reduces the air interface signaling overhead when the MS is simultaneously switched, thereby reducing the network load.
  • the access link and the relay link can be different systems.
  • only the ASN-GW can identify different systems.
  • the program can respond Used in subsequent B3G multiple access network systems.
  • the MS After the MS accesses the network through the third method, the MS reconnects and the switchover process is still completed through the information exchange with the MRS.
  • the MRS still exchanges information with the ASN-GW through the BS.
  • the embodiment of the present invention simultaneously provides three types of wireless communication systems.
  • the first type of wireless communication system includes: a mobile relay station MRS, an MS, and a base station BS, as shown in FIG.
  • the mobile relay station MRS is configured to receive an initial ranging request from the MS, allocate the first management CIDs to the MS, and send the same to the BS, receive the second management CIDs from the BS, and establish the first and second management CIDs.
  • the first management CIDs are sent to the MS according to the mapping relationship, and the interaction information between the MS and the BS in the subsequent network access process is forwarded according to the mapping relationship;
  • the BS is configured to receive the first management CIDs, allocate the second management CIDs to the MS, and send the second management CIDs to the MRS; perform group information update according to the first management CIDs; and perform information interaction of the subsequent network access process by using the MRS and the MS;
  • the MS is configured to receive the first management CIDs, and perform information interaction between the MRS and the BS for subsequent network access processes.
  • the MRS in the system includes: a management CIDS mapping unit and an interactive information forwarding unit,
  • the management CIDs mapping unit is configured to receive an initial ranging request from the MS, allocate the first management CIDs to the MS, and send the first management CIDs to the MS; send the first management CIDs to the MS; receive the second management CIDs from the BS, establish the first a mapping relationship between the first and second management CIDs;
  • the interaction information forwarding unit is configured to forward the interaction information between the MS and the BS in the subsequent network access process according to the mapping relationship.
  • the interaction information forwarding unit includes: a capability negotiation, an authentication authentication, and a registration information forwarding unit, configured to receive a request message sent by the MS, and replace the CID in the message header with the corresponding second management CID according to the mapping relationship, and Forwarding to the BS; receiving the response message sent by the BS, replacing the CID in the message header with the corresponding second management CID according to the mapping relationship, and forwarding the response message to the MS.
  • the interaction information forwarding unit further includes: a first service connection establishing unit, configured to receive a service connection establishment request message sent by the MS, replace the message header according to the mapping relationship, and forward the message header to the BS; and obtain the service CIDs allocated by the BS for the MS. Transmitting the service CIDs allocated by the MRS to the MS to the MS; establishing a mapping relationship between the two sets of service CIDs allocated by the MRS and the BS for the MS.
  • the interaction information forwarding unit further includes: a second service connection establishing unit, configured to receive a service connection establishment request message from the BS, obtain a service CIDs allocated by the BS for the MS, and send the service CIDs allocated by the MS to the MS; The mapping relationship between the two sets of service CIDs allocated by the MRS and the BS for the MS.
  • a second service connection establishing unit configured to receive a service connection establishment request message from the BS, obtain a service CIDs allocated by the BS for the MS, and send the service CIDs allocated by the MS to the MS.
  • the BS in the system includes: a ranging request processing unit, a group information updating unit, and a subsequent network processing unit, a ranging request processing unit, configured to receive first management CIDs from the MRS, allocate second management CIDs to the MS, and send the same to the MRS;
  • a group information update unit configured to update the group information saved by itself according to the first management CIDs
  • the subsequent network access processing unit is used to perform information exchange between the MRS and the MS for subsequent network access processes.
  • the subsequent network access processing unit includes: a service connection establishment response unit, configured to receive a service connection establishment request from the MRS, and carry the service CIDs allocated by the MS to the message in the message connection establishment response message, to the corresponding second management CID.
  • the CID as the header is sent to the MRS.
  • the subsequent network access processing unit includes: a service connection establishment requesting unit, configured to carry the service CIDs allocated by the BS to the MS in the service connection establishment request message and send the message to the MRS.
  • a service connection establishment requesting unit configured to carry the service CIDs allocated by the BS to the MS in the service connection establishment request message and send the message to the MRS.
  • the second wireless communication system includes: a mobile relay station MRS, an MS, and a base station BS, as shown in FIG.
  • the mobile relay station MRS is configured to receive an initial ranging request from the MS, allocate management CIDs to the MS, and send the management CIDs to the BS through the management connection tunnel; send the management CIDs to the MS; and forward the interaction between the MS and the BS in the subsequent network access process Information, interacting with the information in the subsequent network access process by the BS through the management connection tunnel;
  • the BS is configured to receive the management CIDs, update the group information according to the management CIDs, and perform the information interaction in the subsequent network access process with the MRS through the management connection tunnel;
  • the MS is configured to receive the management CIDs, and perform subsequent network access processes by using the MRS and the BS.
  • the MRS includes: a management CIDs allocation mapping unit and an information forwarding unit.
  • the management CIDs allocation mapping unit is configured to receive an initial ranging request from the MS, allocate management CIDs to the MS, and send the same to the BS through the management connection tunnel; send the management CIDs to the MS;
  • the information forwarding unit forwards the interaction information between the MS and the BS in the subsequent network access process, and interacts with the information in the subsequent network access process by the BS through the management connection tunnel.
  • the information forwarding unit includes: a capability negotiation, an authentication authentication, and a registration information forwarding unit, configured to receive a request message sent by the MS, and encapsulate the same in a management connection tunnel allocated by the BS for the MRS, and send the response message from the BS. Decapsulate and forward to the MS.
  • the information forwarding unit further includes: a first service connection establishing and forwarding unit, configured to receive a service connection establishment request message sent by the MS, add the service CIDs allocated by the MRS to the MS after the message, and encapsulate the message in the management of the MRS allocation by the BS.
  • the connection tunnel is sent to the BS.
  • the service connection establishment response message from the BS is received, and is decapsulated and forwarded to the MS.
  • the information forwarding unit further includes: a second service connection establishing and forwarding unit, configured to receive a service connection establishment request message from the BS, return a service CIDs allocated by the MRS to the MS to the BS, and receive a new service connection establishment request message from the BS, Decapsulated and forwarded to the MS.
  • the BS includes: a group information update unit and a subsequent network access execution unit;
  • a group information update unit configured to receive management CIDs from the MRS, and update the group information saved by the management CIDs according to the management CIDs;
  • the subsequent network access process execution unit is configured to interact with the MRS through the management connection tunnel to perform information in the subsequent network access process.
  • the subsequent network access process execution unit includes: a service connection establishment request sending unit, configured to send a service connection establishment request message to the MRS through the management connection tunnel allocated by the BS for the MRS; receive the service CIDs allocated by the MRS for the MS, and allocate the MRS to the MS
  • the CIDs are carried in the new service connection establishment request message body, and the Primary CID allocated by the MRS for the MS is used as the message header CID, and is sent to the MRS through the management connection tunnel.
  • the subsequent network access process execution unit includes: a service connection establishment request response unit, configured to receive a service connection establishment request message from the MRS, and carry the service CIDs allocated by the MRS to the MS in the service connection establishment response message, and encapsulate the management connection Sent to the RS in the tunnel.
  • a service connection establishment request response unit configured to receive a service connection establishment request message from the MRS, and carry the service CIDs allocated by the MRS to the MS in the service connection establishment response message, and encapsulate the management connection Sent to the RS in the tunnel.
  • a third type of wireless communication system includes: a mobile relay station MRS, an MS, a base station BS, and an access service network gateway ASN-GW, as shown in FIG.
  • the MS is configured to perform parameter adjustment and initial ranging with the MRS, and send a basic capability negotiation request to the MRS; perform authentication authentication, registration, and service connection establishment with the MRS;
  • the MRS is configured to perform parameter adjustment and initial ranging with the MS, receive a basic capability negotiation request, send a state transition request to the ASN-GW through the BS, notify the ASN-GW that a new MS wants to enter the network, and perform authentication authentication with the MS. Registration and business connection establishment;
  • the BS is configured to receive a state transition request from the MRS, obtain related group information, perform group information maintenance, and implement information forwarding between the MRS and the ASN-GW.
  • the MRS includes: a state transition request unit and an authentication authentication, registration, and service connection establishing unit.
  • the state transition requesting unit is configured to perform parameter adjustment and initial ranging with the MS, receive a basic capability negotiation request from the MS, and send a state transition request to the ASN-GW through the BS, to notify the ASN-GW that a new MS wants to enter the network;
  • An authentication, registration, and service connection establishment unit is used for authentication, registration, and service connection establishment with the MS.
  • the BS includes: a group information maintenance unit and an information forwarding unit,
  • a group information maintenance unit configured to acquire related group information according to the state transition request from the MRS, and perform group information maintenance
  • the information forwarding unit is configured to implement information forwarding between the MRS and the ASN-GW, including receiving a state transition request from the MRS, and sending the state transition request to the ASN-GW, to notify the ASN-GW that a new MS wants to enter the network.
  • the three MS network access methods, the wireless communication system, the mobile relay station, and the base station provided by the embodiments of the present invention solve the problem caused by short-term large-scale air interface signaling interaction caused by group switching in the group mobile scenario. When the group is switched, the access link connection does not need to be changed, thereby saving air interface resources and optimizing the group switching process.
  • All or part of the technical solutions provided by the above embodiments may be implemented by software programming, and the software program may be stored in a readable storage medium such as a hard disk, a memory or an optical disk in a computer or the like.

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  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

Certains modes de réalisation de cette invention concernent des procédés d'entrée de réseau de station mobile (MS) comprenant: une station de relais mobile (MRS) et des identificateurs de connexion (CID) de gestion d'attribution de la station de base (BS) pour la MS respectivement, la MRS établissant une relation de mappage entre les deux ensembles de CID, puis la MRS transmettant les informations d'intercommunication entre la BS et la MS dans la procédure d'entrée de réseau en fonction de la relation de mappage; ou la MRS se connectant à la BS à travers un tunnel et attribuant les CID à la MS, puis la MRS et la BS intercommunicant les informations à travers le tunnel entre la MRS et la BS dans la procédure d'entrée de réseau; ou la MS et la MRS mettant en oeuvre les informations d'intercommunication dans la procédure d'entrée de réseau, la BS étant uniquement utilisée pour conserver des informations de groupe et achever une intercommunication d'informations entre la MRS et une passerelle de réseau de service d'accès. Les modes de réalisation de cette invention concernent également des systèmes de communication sans fil, des stations de relais mobiles et des stations de base. Le coût de signalisation en ondes dans la procédure de transfert du groupe mobile peut être réduit au moyen des procédés, des systèmes de communication sans fil, des stations de relais mobiles et des stations de base de cette invention.
PCT/CN2008/070351 2007-03-02 2008-02-22 Procédés, systèmes de communication sans fil, stations de relais mobiles et stations de base d'entrée de réseau ms WO2008106880A1 (fr)

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