CN101106801A - A re-positioning method and system for terminal under idle mode in communication system - Google Patents
A re-positioning method and system for terminal under idle mode in communication system Download PDFInfo
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- CN101106801A CN101106801A CNA2006100987432A CN200610098743A CN101106801A CN 101106801 A CN101106801 A CN 101106801A CN A2006100987432 A CNA2006100987432 A CN A2006100987432A CN 200610098743 A CN200610098743 A CN 200610098743A CN 101106801 A CN101106801 A CN 101106801A
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Abstract
The invention relates to a re-positioning method and system for a communication terminal in idle mode. The invention mainly includes: firstly, a first network entity transmits request information for initiating a re-positioning operation to a second network entity; then, after the second network entity receives the request information for initiating a re-positioning operation, the second network entity determines correspondent re-positioning parameter information and returns a response message containing the re-positioning parameter information for initiating the re-positioning operation to the first network entity; and finally, the first network performs the re-positioning operation according to the re-positioning parameter information. Realization of the invention enables a paging control unit to accurately judge whether a re-positioning request message is needed to be initiated and ensures reasonability of the re-positioning response message transmitted by the paging control unit, thereby preventing the system from initiating an unnecessary re-positioning operation, improving running reliability of the system and saving running resource.
Description
Technical Field
The present invention relates to a method and a system for foreign agent relocation, and more particularly, to a method and a system for supporting foreign agent relocation in an idle mode of a terminal in a communication system.
Background
In a mobile communication system, the operation modes of a terminal can be divided into three types: the first mode is a null mode, namely the power of the terminal is not turned on, and the terminal and the base station do not have any information contact at the moment; the second is an idle mode, that is, the power of the terminal is already turned on and resides in a cell but there is no call or data transmission service, and at this time, the terminal and the base station have information contact for the cell situation; the third is a connection mode, that is, the terminal is in a state of talking or performing data transmission service, and at this time, the terminal and the base station have information contact for the cell situation and the service transmission situation.
Regardless of the mode of operation of the terminal, the terminal may move from one mobile subnet to another. When the terminal roams into another communication subnet through the mobile node while the terminal is in idle mode, a router on the home network, an HA (home agent), may serve as a anchor point for communication with the mobile node, and a router serving as a point of attachment for the mobile node, an FA (foreign agent), may provide packet information sent from the HA to the mobile node when the mobile node moves to another mobile subnet.
The HA is specifically: a mobile subnet router, which is a proxy for the network (home network) to which the mobile node's home (non-changing) IP belongs, has the task of intercepting packets destined for the mobile node when the mobile node leaves the home network and accesses a foreign network, and forwards these packets to the forwarding node of the mobile node using tunneling. The HA is also responsible for maintaining current location information for the mobile node.
The FA specifically comprises: the FA, which is located on a foreign network to which the mobile node is currently attached, provides routing services to the registered mobile node. When the FA care-of address is used, the FA is responsible for removing tunnel encapsulation of the original data packet, taking out the original data packet and forwarding the original data packet to the mobile node. For those packets sent by the mobile node, the FA may act as the default router for the registered mobile node.
The relocation of the foreign agent specifically means: when the terminal moves in the mobile subnet or between the mobile subnets, the terminal selects different mobile subnet routers to perform routing information processing. The existing foreign agent relocation method is shown in fig. 1, and the specific steps are as follows:
step 101: the new relay paging control unit or the new foreign agent or the service access network gateway sends a location update request to the anchor paging control unit;
in the anchoring paging control unit, if the address of the new relay paging control unit received this time is determined to be different from the address of the new relay paging control unit last time, executing step 102; otherwise, no operation is performed.
Step 102: the anchor paging control unit sends a relocation request to the proxy mobile IP client, said request including the address of the new foreign agent.
Step 103: the proxy mobile IP client sends a relocation response to the anchor paging control unit.
The following disadvantages are evident in the relocation method provided by the above prior art:
first, when the new relay paging control unit executing step 101 transmits a location update request, the current serving base station of the terminal has not judged the validity of the request, so it is not appropriate to initiate a relocation request of the foreign agent by the anchor paging control unit in step 102.
Second, for the anchor paging control unit, the function and protocol of the anchor paging control unit are not suitable as a unit to initiate a foreign agent migration request because the function of the anchor paging control unit is to save some session information of the terminal in idle mode instead of the base station, i.e., the paging control unit does not know the current resource information of the target foreign agent and target data path.
Thirdly, a location update request is sent to the new relay paging control unit, and if the recipient of the location update request information is the client mobile IP (address), it is not necessary to perform step 102 and step 103 in some cases, i.e., no location update operation is performed. At this time, it is obviously not appropriate for the anchor paging control unit to initiate a relocation request.
Therefore, there is currently no suitable implementation for implementing a foreign agent relocation operation for a terminal in idle mode.
Disclosure of Invention
The invention aims to provide a relocation method and a relocation system of a terminal in an idle mode in a communication system, which enable a paging control unit to acquire the type of a mobile IP and judge the legality of a received relocation request message, so that the paging control unit can judge whether to initiate a relocation response message according to the type of the mobile IP and the legality of the relocation request message.
The purpose of the invention is realized by the following technical scheme:
the invention provides a relocation method of a terminal in an idle mode in a communication system, which comprises the following steps:
a first network entity sends a request message for initiating relocation operation to a second network entity;
after receiving the request message for initiating the relocation operation, the second network entity determines corresponding relocation parameter information and returns a response message containing the relocation parameter information for initiating the relocation operation to the first network entity;
and the first network entity carries out relocation processing according to the relocation parameter information.
The method of the invention also optionally comprises the following technical features:
the information carried in the request message for initiating the relocation operation includes: a foreign agent relocation indication, location information of the target data path function and/or location information of the target foreign agent.
The relocation parameter information includes: the result of the response to the foreign agent relocation indication, location information of the proxy mobile IP, location information of the anchor data path function, and/or location information of the foreign agent.
The first network entity performs relocation processing according to the relocation parameter information, including:
determining that relocation is allowed according to the relocation parameter information, and then performing relocation operation according to the specific relocation parameter information;
or,
and if the relocation is determined not to be allowed according to the relocation parameter information, the relocation operation is not carried out.
The relocation operation according to the specific relocation parameter information includes:
after the first network entity determines that the position updating operation is completed, a relocation request message is sent to the proxy mobile IP client according to the information carried in the response message for initiating the relocation operation;
after receiving the relocation request message sent by the first network entity, the proxy mobile IP client carries out relocation operation and replies a relocation response message to the first network entity.
In the present invention, after the first network entity performs the relocation operation according to the specific relocation parameter information, the method further includes:
a first network entity sends a session release request message to an anchoring foreign agent or an anchoring data path functional unit;
and the anchoring foreign agent or the anchoring data path functional unit replies a session release response message to the first network entity after performing session release operation according to the received session release request message.
The information carried in the session release response message includes: quality of service assurance information and traffic flow information associated with the terminal.
In the method according to the present invention, the first step,
the first network entity comprises: a relay paging control unit, a target data path functional unit, or a target foreign agent;
the second network entity comprises: a new anchor paging control element or an old anchor paging control element or a serving access network gateway.
In the present invention, before the first network entity sends a request message for initiating a relocation operation to the second network entity, the method further includes: and the second network entity obtains the type of the mobile IP.
In the present invention, when the second network entity is a paging control unit, the operation of acquiring the mobile IP type includes:
in the process that the terminal enters the idle mode, the paging control unit acquires the type of the mobile IP through the mobile IP type providing unit; or,
the terminal sends a mobile IP type message from the old anchor paging control unit to the new anchor paging control unit in the process of performing location update and paging control unit relocation.
The mobile IP type providing unit includes:
a data path function, a mobile IP foreign agent, an old paging control unit, an authenticator, a proxy mobile IP client, a serving access network gateway, a relay paging control unit, a context proxy and/or a context server.
The processing that the paging control unit obtains the type of the mobile IP through the mobile IP type providing unit comprises the following steps:
the anchoring paging control unit sends a mobile IP type request message for requesting to acquire the type of the mobile IP to an anchoring data path unit;
the anchor data path unit sends a mobile IP type response message containing the type information of the mobile IP to the anchor paging control unit.
In the present invention, before the old anchor paging control unit sends the mobile IP type message to the new anchor paging control unit, the method further comprises:
the old paging control unit sends a mobile IP type request message to the mobile IP type storage unit, and the mobile IP type storage unit sends the corresponding mobile IP type to the old paging control unit through a mobile IP type response message.
The information carried in the mobile IP type request message includes: an indication of mobile IP type, a relocation request and/or a foreign agent relocation request is requested.
The present invention also provides a relocation system of a terminal in idle mode in a communication system, comprising:
a relocation operation initiation processing unit, arranged in the first network entity, for sending a request message for initiating a relocation operation to the second network entity;
a relocation parameter response processing unit, arranged in the second network entity, for determining the corresponding relocation parameter information after receiving the request message for initiating relocation operation, and returning a response message for initiating relocation operation containing the relocation parameter information to the first network entity;
and the relocation processing unit is arranged in the first network entity and is used for carrying out relocation operation according to the relocation parameter information.
The system of the invention also optionally comprises the following technical characteristics:
in the system according to the present invention, the system,
the first network entity comprises: a relay paging control unit, a target data path functional unit, or a target foreign agent;
the second network entity comprises: a new anchor paging control element or an old anchor paging control element or a serving access network gateway.
The relocation processing unit includes:
a relocation initiating unit, configured to send a relocation request message to the proxy mobile IP client according to the relocation parameter information after the location update operation is completed;
and the relocation processing unit is arranged at the proxy mobile IP client and used for carrying out relocation operation after receiving the relocation request message sent by the first network entity and replying a relocation response message to the first network entity.
The system further comprises:
a session release initiating unit, which is arranged in the first network entity and is used for sending a session release request message to the anchoring foreign agent or the anchoring data path functional unit;
and the session release processing unit is arranged in the anchoring foreign agent or the anchoring data path functional unit and used for replying a session release response message to the first network entity after performing session release operation according to the received session release request message.
The system further comprises:
a mobile IP type obtaining unit, arranged in the second network entity, for obtaining the type of the mobile IP from the mobile IP type providing unit in the process of entering the idle mode; or, in performing location update and paging control element relocation, the type used to acquire mobile IP to the old anchor paging control element.
The mobile IP type providing unit includes:
a data path function, a mobile IP foreign agent, an old paging control unit, an authenticator, a proxy mobile IP client, a serving access network gateway, a relay paging control unit, a context proxy and/or a context server.
The technical scheme provided by the invention can be seen that the invention can accurately judge whether the relocation request message needs to be initiated or not so as to ensure the reasonability of the initiated relocation operation, thereby avoiding the system from initiating unnecessary relocation operation, effectively improving the reliability of system operation and saving operation resources. Meanwhile, in the invention, the relocation operation is initiated through the relay paging control unit or the target foreign agent or the target data path function, so that the problem caused by the initiation of the relocation operation by the anchor paging control unit can be avoided.
Drawings
FIG. 1 illustrates a prior art method for implementing foreign agent relocation;
FIG. 2 is a schematic diagram of a specific implementation of the present invention;
FIG. 3 is a schematic flow chart of an embodiment of the method of the present invention;
fig. 4 is a first flowchart illustrating a specific implementation process of acquiring a mobile IP type by a paging control unit in the method of the present invention;
FIG. 5 is a schematic diagram of a specific implementation process of acquiring a mobile IP type by a paging control unit in the method of the present invention;
fig. 6 is a third schematic flow chart of a specific implementation of acquiring a mobile IP type by a paging control unit in the method of the present invention;
fig. 7 is a schematic diagram of a specific implementation structure of the system according to the present invention.
Detailed Description
For the purpose of promoting an understanding of the invention, reference will now be made in detail to the embodiments of the invention illustrated in the accompanying drawings.
The specific implementation principle of the present invention is schematically shown in fig. 2, and specifically includes:
step 201: a relay paging control unit, a data path function unit or a target foreign agent as a first network entity sends a request message to a paging control unit as a second network entity;
the request message may include, but is not limited to: a foreign agent relocation indication, location information of the target data path function and/or location information of the target foreign agent;
step 202: the paging control unit as the second network entity sends a response message to the relay paging control unit, the data path function unit or the target foreign agent as the first network entity, wherein the response message carries corresponding relocation parameter information;
the second network entity may be a new anchor paging control unit or an old anchor paging control unit, and may also be a serving access network gateway;
the relocation parameter information in the response message may include, but is not limited to: the result of the response to the foreign agent relocation indication (i.e. the result of the response to said relocation request message, including relocation allowed or not allowed), the location information of the proxy mobile IP, the location information of the anchor data path function and/or the location information of the foreign agent.
After the step 202 is executed, the first network entity may perform corresponding relocation processing according to the relocation parameter information, where the relocation processing specifically includes:
if the relocation is determined to be allowed according to the response result in the relocation parameter information, the relocation operation is carried out according to the specific relocation parameter information (namely other parameters in the relocation parameter information);
and if the relocation is determined not to be allowed according to the response result in the relocation parameter information, the relocation operation is not carried out.
Before step 201 is executed, the paging control unit as the second network entity may obtain the type information of the mobile IP corresponding to the terminal from the mobile IP type providing unit, or may obtain the type of the mobile IP of the terminal in other manners. If the type of mobile IP can be known in advance by the anchor paging control unit as the second network entity, it can make correct and reasonable response according to the type of mobile IP when receiving the request of foreign agent relocation sent by the new paging control unit or other control units as the first network entity.
For example, if the type of mobile IP is CMIP (client mobile IP), the anchor paging control unit as the second network entity may directly reject the relocation request of the foreign agent and send a response message containing the reason for rejecting the relocation; if the mobile IP type is PMIP (proxy mobile IP), the anchor paging control unit as the second network entity may include the successful relocation request, the location information of the proxy mobile IP client, the location information of the anchor datapath function unit, and/or the location information of the foreign agent in the response message. Or, when the second network entity learns that the type of the mobile IP is CMIP, it may further determine whether to perform a relocation operation according to needs, for example, perform a relocation operation only when necessary, and so on.
The mobile IP type providing unit includes but is not limited to: a relay paging control unit as a first network entity and an old paging control unit as a second network entity, and a serving access network gateway, a data path function, an authenticator, a mobile IP foreign agent, a proxy mobile IP client, a context proxy and/or a context server.
The detailed method for supporting foreign agent relocation in idle mode in WiMAX (worldwide interoperability for microwave access authentication) is used as a specific embodiment to describe the specific implementation of the present invention in detail.
The specific implementation flow of the method for supporting foreign agent relocation in idle mode in WiMAX according to the present invention is shown in fig. 3, and specifically includes:
step 301: the MS (mobile station) transmits a location update request message, i.e., a ranging request message RNG-REQ, to the relay paging control unit, which is a first network entity.
Step 302: the first network entity sends the location update request to the second network entity, which may specifically include the following two stages:
firstly, after receiving a location update Request message sent by a mobile station, a relay paging control unit serving as a first network entity sends a location update Request message (LU Request) to a new anchor paging control unit serving as a second network entity;
secondly, after receiving the location update request message sent by the relay paging control unit as the first network entity, the new anchor paging control unit as the second network entity sends the location update request message to the old anchor paging control unit as the second network entity.
The location update request message may include an indication requesting relocation of a foreign agent, location information of a target datapath functional unit, and/or location information of a target foreign agent, that is, the location update request message is also used as a request message for initiating relocation operation to request the second network entity to determine relocation parameter information, and specifically includes: whether a relocation operation can be initiated, and information required during the initiation of the relocation operation.
After receiving the location update request message, the old anchor paging control unit as the second network entity determines whether to perform a relocation operation of the foreign agent according to the type information of the mobile IP stored in the location register and other predetermined condition information. If necessary, after the step 310 is executed, the step 311 is continuously executed, otherwise, after the step 310 is executed, the step 311 is not executed.
Step 303: after receiving the location update Request message sent by the relay paging control unit serving as the first network entity, the old anchor paging control unit serving as the second network entity sends an information Request message MS Info Request to an anchor authenticator or a PMlP client;
the information request message may contain an indication of the request for foreign agent relocation as required.
Step 304: after receiving the information request message sent by the old anchoring paging control unit serving as the second network entity, the anchoring authentication device sends an information Response message MS Info Response to the old anchoring paging control unit serving as the second network entity;
corresponding to step 303, the information response message may include: the type of mobile IP, location information of the proxy mobile IP client, and/or the response of foreign agent relocation indication, etc.
Step 305: the second network entity returns a location update response message to the first network entity, which may include the following two phases corresponding to step 302:
firstly, after receiving the information Response message sent by the anchoring authentication device, the old anchoring paging control unit as the second network entity sends a location update Response message LU Response to the new anchoring paging control unit as the second network entity;
secondly, after receiving the information response message sent by the old anchor paging control unit as the second network entity, the new anchor paging control unit as the second network entity sends a location update response message to the relay paging control unit as the first network entity.
The relocation parameter information that may be included in the location update response message, but is not limited to, is: type of mobile IP, location information of the proxy mobile IP client, location information of the anchor data path function, and/or response of foreign agent relocation indication; and performing subsequent relocation processing according to the relocation parameter information, thereby re-determining a corresponding FA for the mobile terminal.
The relay paging control unit as the first network entity knows from the location update response message sent in step 305 that its location update request message sent in step 302 is responded to, and the information needed to complete the location update operation.
Step 306: after receiving the location update response message sent by the old anchor paging control unit as the second network entity, the relay paging control unit as the first network entity sends a location update response message, i.e. a ranging response message RNG-RSP, to the mobile station.
The execution of the process facilitates the corresponding judgment of the legality of the position updating and repositioning information by the network side, thereby avoiding the position updating and repositioning operation caused by illegal information.
Step 307: the first network entity sends a location update confirmation message to the second network entity, and the step mainly comprises the following two stages:
firstly, after receiving a location update response message sent by an old anchor paging control unit serving as a second network entity, a relay paging control unit serving as a first network entity sends a location update confirmation message LU Confirm to a new anchor paging control unit serving as a second network entity;
secondly, after receiving the location update response message sent by the relay paging control unit serving as the first network entity, the new anchor paging control unit serving as the second network entity sends a location update confirmation message to the old anchor paging control unit serving as the second network entity;
and the location update confirm message may include an indication of success or failure of receiving foreign agent relocation information as completed in step 305.
Step 308: after receiving the position updating confirmation message sent by the relay paging control unit as the first network entity, the old anchor paging control unit as the second network entity sends an information confirmation message MS Info Ack to the anchor authentication device;
also, the information confirmation message may include an indication of success or failure of receiving foreign agent relocation information, which is completed in step 305.
Step 309: after receiving the location update response message sent by the relay paging control unit as the first network entity, the new anchor paging control unit as the second network entity sends an information Request message MS Info Request to the foreign agent of the anchor data path unit to tell the foreign agent of the anchor data path unit the location of the new paging control unit.
Step 310: after receiving the information request message sent by the new anchor paging control unit as the second network entity, the foreign agent of the anchor data path unit sends an information Response message MS Info Response to the new anchor paging control unit as the second network entity.
Step 311: after receiving the location update response message sent by the old anchor paging control unit as the second network entity, the relay paging control unit as the first network entity sends an R3 relocation Request message R3 relocation Request to the proxy mobile IP client, so as to re-determine the corresponding foreign agent, i.e. FA, for the mobile terminal.
Step 312: after receiving the R3 relocation request message sent by the relay paging control unit as the first network entity, the proxy mobile IP client replies with and sends an R3 relocation Response message R3 relocation Response to the relay paging control unit as the first network entity.
Step 313: after receiving the R3 relocation response message sent by the proxy mobile IP client, the relay paging control unit as the first network entity performs the standard mobile IP registration MIP-RRQ/MIP-RRP processing among the target foreign agent, the proxy mobile IP client, and the home agent, but may perform other non-standard mobile IP registration processing procedures.
Step 314: after standard mobile IP registration between the target foreign agent, the proxy mobile IP client and the home agent is completed, the proxy mobile IP client sends an R3 relocation Confirm message R3 relocation Confirm to the target foreign agent as the target datapath function of the first network entity.
Step 315: after receiving the R3 relocation acknowledge message sent by the proxy mobile IP client, the target foreign agent, as a target data path function of the first network entity, sends an R3 Session Release Request message R3 Session Release Request to the anchor data path function or anchor foreign agent, indicating the anchor data path function or anchor foreign agent to Release the Session information maintained for the terminal.
Step 316: after receiving the R3 Session Release request message sent by the target foreign agent of the target datapath functional unit as the first network entity, the anchor datapath functional unit or the anchor foreign agent performs a corresponding Session Release operation, and replies an R3 Session Release Response message R3 Session Release Response to the target foreign agent of the target datapath functional unit as the first network entity, indicating that the target foreign agent of the target datapath functional unit as the first network entity releases the Response message maintained for the terminal.
The R3 session release response message may include, but is not limited to, quality of service assurance information and traffic flow information associated with the terminal.
Step 317: after receiving the R3 session release response message sent by the anchor data path function or the anchor foreign agent, the target foreign agent, which is the target data path function of the first network entity, sends a location report message ContextReport to the anchor paging control unit, which is the second network entity, so as to notify the anchor paging control unit, which is the second network entity, of the location information of the new foreign agent and/or the new anchor data path function of the terminal.
Step 318: after receiving the location Report message sent by the target foreign agent of the target data path functional unit of the first network entity, the anchor paging control unit serving as the second network entity updates the location information of the foreign agent and/or the anchor data path functional unit of the corresponding terminal, and sends a location Report response message Context Report Ack to the target foreign agent of the target data path functional unit of the first network entity.
The above-mentioned specific implementation is a method for supporting foreign agent relocation in idle mode in WiMAX network, but if relocation operation for foreign agent is required, it may be determined by judging the type of mobile IP before relocation of foreign agent. The following describes in detail specific embodiments of the present invention for acquiring mobile IP type information corresponding to a terminal.
Fig. 4 shows a first specific embodiment of the mobile IP type determination for entering the idle mode in the WiMAX network according to the present invention, which specifically includes:
step 401: the mobile station sends an enter idle mode request message to a relay paging control unit or a serving access network gateway as a first network entity.
Step 402: after receiving the idle mode entering request message sent by the mobile station, the relay paging control unit or the service access network gateway serving as the first network entity sends the idle mode entering request message to the anchor paging control unit serving as the second network entity.
If the relay paging control unit or the serving access network gateway serving as the first network entity can determine the type information of the mobile IP, the idle mode entering request message may include the corresponding type information of the mobile IP.
Step 403: after receiving the request message for entering idle mode sent by the relay paging control unit or the service access network gateway as the first network entity, the anchoring paging control unit as the second network entity sends an information request message to the anchoring authenticator or the proxy mobile IP client to obtain the information which is needed by the anchoring authenticator or the proxy mobile IP client and is related to the mobile station;
the information request message may include an indication of type information of the requested mobile IP so as to obtain the corresponding type information of the mobile IP from the anchor authenticator or the proxy mobile IP client.
Step 404: after receiving the information request message sent by the anchoring paging control unit serving as the second network entity, the anchoring authentication device or the proxy mobile IP client sends an information response message to the anchoring paging control unit serving as the second network entity;
if the anchoring authenticator or the proxy mobile IP client can determine the type information of the mobile IP, the information response message may include the corresponding type information of the mobile IP, so as to ensure that the second network entity can obtain the corresponding type information of the mobile IP.
Step 405: after receiving the information response message sent by the anchoring authenticator or the proxy mobile IP client, the anchoring paging control unit serving as the second network entity sends a response message for entering an idle mode to the relay paging control unit serving as the first network entity or the service access network gateway;
the idle mode response message may include indication information of success or failure in receiving the type information of the mobile IP.
Step 406: after receiving the response message of entering idle mode sent by the anchoring paging control unit serving as the second network entity, the relay paging control unit or the service access network gateway serving as the first network entity sends the response message of entering idle mode to the mobile station.
Step 407: after receiving the information response message sent by the proxy mobile IP client, the anchoring paging control unit as the second network entity sends an information request message to the anchoring data path unit to inform the mobile station of entering an idle mode and inform the anchoring paging control unit as the second network entity of the position information;
the information response message may include an indication requesting the type information of the mobile IP, so that the second network entity may obtain the corresponding type information of the mobile IP.
Step 408: after receiving the information request message sent by the anchoring paging control unit serving as the second network entity, the anchoring data path unit sends an information response message to the anchoring paging control unit serving as the second network entity;
if the anchor data path unit can determine the type of the mobile IP, the information response message may include the type information of the mobile IP.
Step 409: after receiving the information response message sent by the anchor data path unit, the anchor paging control unit serving as the second network entity performs data path removal operation with the relay paging control unit serving as the first network entity.
In the process shown in fig. 4, the anchor paging control unit as the second network entity may obtain the type information of the corresponding mobile IP through step 402, and/or steps 403 and 404, and/or steps 407 and 408, and store it in the location register.
Fig. 5 shows a second specific embodiment of the mobile IP type determination for entering the idle mode in the WiMAX network according to the present invention, which specifically includes:
step 501: the mobile station sends an enter idle mode request message to an anchor paging control unit or a serving access network gateway as a second network entity.
Step 502: after receiving the request message for entering idle mode sent by the mobile station, the anchoring paging control unit or the service access network gateway as the second network entity sends an information request message to the anchoring authentication device or the proxy mobile terminal to obtain the information which is needed by the anchoring paging control unit or the service access network gateway and is related to the mobile station;
the information request message may include an indication requesting type information of the mobile IP so as to obtain the corresponding type information of the mobile IP from the anchor authenticator or the proxy mobile IP client.
Step 503: after receiving the information request message sent by the anchoring paging control unit or the service access network gateway serving as the second network entity, the anchoring authentication device or the proxy mobile IP client sends an information response message to the anchoring paging control unit or the service access network gateway serving as the second network entity;
if the anchoring authenticator or the proxy mobile IP client can judge the type of the mobile IP, the information response message may contain the type information of the mobile IP, so that the second network entity may obtain the corresponding type information of the mobile IP.
Step 504: after receiving the information response message sent by the anchoring authenticator or the proxy mobile IP client, the anchoring paging control unit or the service access network gateway serving as the second network entity sends a response message for entering the idle mode to the mobile station.
Step 505: after receiving the information response message sent by the anchoring authenticator or the proxy mobile IP client, the anchoring paging control unit or the service access network gateway serving as the second network entity sends an information request message to the anchoring data path unit to inform the mobile station of entering the idle mode and inform the anchoring paging control unit serving as the second network entity of the location information.
The information request message may include an indication of a type of the requested mobile IP so that the anchor data path element or the foreign agent provides the corresponding type of the mobile IP to the second network entity.
Step 506: and after receiving the information request message sent by the anchoring paging control unit or the service access network gateway serving as the second network entity, the anchoring data path unit sends an information response message to the anchoring paging control unit or the service access network gateway serving as the second network entity.
If the anchor data path unit can determine the type of the mobile IP, the information response message may include the type of the mobile IP.
Step 507: after receiving the information response message sent by the anchor data path unit, the anchor paging control unit or the serving access network gateway serving as the second network entity performs the data path removal operation between the anchor paging control unit or the serving access network gateway and the anchor data path unit.
In the process shown in fig. 5, by performing steps 502 and 503, and/or steps 505 and 506, the anchor paging control unit as the second network entity may obtain the type information of the corresponding mobile IP and store the type information in the location register.
Fig. 6 shows a specific embodiment of the mobile IP type determination applied to location update in a WiMAX network according to the present invention, which specifically includes the following processing steps:
step 601: the mobile station sends a location update request message to a relay paging control unit as a first network entity.
Step 602: after receiving the position updating request message sent by the mobile station, the relay paging control unit serving as a first network entity sends the position updating request message to a new anchoring paging control unit serving as a second network entity;
step 603: after receiving the location update request message sent by the relay paging control unit serving as the first network entity, the new anchor paging control unit serving as the second network entity sends the location update request message to the old anchor paging control unit serving as the second network entity;
also, the location update request message may include an indication of the type of mobile IP requested.
Step 604: after receiving the position updating request message sent by the new anchoring paging control unit as the second network entity, the old anchoring paging control unit as the second network entity sends an information request message to the anchoring authentication device;
the information request message may include an indication of a mobile IP type of the request.
Step 605: after receiving the information request message sent by the old anchoring paging control unit serving as the second network entity, the anchoring authentication device sends an information response message to the old anchoring paging control unit serving as the second network entity;
if proxy mobile IP is used and the proxy mobile IP client and the anchor authenticator are bound, the information response message may include the type of the corresponding mobile IP.
Step 606: after receiving the information response message sent by the anchoring authentication device, the old anchoring paging control unit serving as a second network entity sends a position updating response message to the new anchoring paging control unit serving as the second network entity;
if the old anchor paging control unit as the second network entity knows the type of the mobile IP used by the mobile station, the location update response message may include the type of the mobile IP, so that the new anchor paging control unit may know the type information of the corresponding mobile IP.
Step 607: after receiving the location update response message sent by the old anchor paging control unit as the second network entity, the new anchor paging control unit as the second network entity sends the location update response message to the relay paging control unit as the first network entity.
Step 608: after receiving the location update response message sent by the new anchor paging control unit as the second network entity, the relay paging control unit as the first network entity sends the location update response message to the mobile station.
Step 609: after receiving the location update response message sent by the new anchor paging control unit as the second network entity, the relay paging control unit as the first network entity sends a location update confirmation message to the new anchor paging control unit as the second network entity.
Step 610: after receiving the position updating confirmation message sent by the relay paging control unit serving as the first network entity, the new anchoring paging control unit serving as the second network entity sends the position updating confirmation message to the old anchoring paging control unit serving as the second network entity;
the location update confirm message may include, but is not limited to, indication information of success or failure in receiving the mobile IP type to indicate whether the relay paging control unit successfully obtains the type information of the mobile IP.
Step 611: after receiving the position updating confirmation message sent by the new anchoring paging control unit as the second network entity, the old anchoring paging control unit as the second network entity sends a message confirmation message to the anchoring authentication device;
the information confirmation message may include an indication of success or failure in receiving the mobile IP type.
In the present invention, the new anchor paging control unit may further adopt the following steps 612 and 613 to obtain the type information of the corresponding mobile IP, which specifically includes:
step 612: after receiving the location update response message sent by the relay paging control unit as the first network entity, the new anchor paging control unit as the second network entity sends an information request message to the anchor data path unit to tell the foreign agent of the anchor data path unit the location of the new paging control unit;
the information request message may include an indication of a mobile IP type of the request.
Step 613: after receiving the information request message sent by the new anchoring paging control unit serving as the second network entity, the foreign agent of the anchoring data path unit sends an information response message to the new anchoring paging control unit serving as the second network entity;
the information response message may include the type information of the mobile IP, so that the new paging control unit can obtain the corresponding type information of the mobile IP.
If the new anchor paging control unit as the second network entity is in the same physical entity as the relay paging control unit as the first network entity, steps 602 and 607 may be omitted; if the new relay paging control unit as the first network entity is in the same physical entity as the old relay paging control unit as the first network entity, steps 603 and 606 may be omitted.
Fig. 7 shows a specific implementation structure diagram of a relocation system of a terminal in an idle mode in a communication system according to the present invention, which specifically includes:
(1) relocation request message transmitting unit
The unit is arranged in a first network entity and used for sending a relocation request message to a second network entity so as to request the second network entity to provide corresponding relocation parameter information, if the relocation operation can be carried out, and the position information of entities such as proxy mobile IP client and the like required in the relocation operation process is carried out;
(2) relocation parameter response processing unit
The unit is arranged in the second network entity and is used for determining corresponding relocation parameter information after receiving the relocation request message and returning a relocation response message containing the relocation parameter information to the first network entity;
(3) relocating a processing unit
The unit is disposed in the first network entity, and configured to perform relocation operation according to the relocation parameter information, where the relocation processing unit specifically may include:
a relocation initiating unit, configured to send a relocation request message to the proxy mobile IP client according to the relocation parameter information after the location update operation is completed;
and the relocation processing unit is arranged at the proxy mobile IP client and used for carrying out relocation operation after receiving the relocation request message sent by the first network entity and replying a relocation response message to the first network entity.
The system of the present invention may further optionally include a session release initiating unit and a session release processing unit, wherein:
a session release initiating unit, which is arranged in the first network entity and is used for sending a session release request message to the anchoring foreign agent or the anchoring data path functional unit;
and the session release processing unit is arranged in the anchoring foreign agent or the anchoring data path functional unit and used for replying a session release response message to the first network entity after performing session release operation according to the received session release request message.
In the system of the present invention, the relocation parameter response processing unit may determine corresponding relocation parameter information according to the type of the mobile IP, for example, determine whether a relocation operation can be performed, and for this reason, the system may further include a mobile IP type obtaining unit, that is:
the mobile IP type obtaining unit is arranged in the second network entity and used for obtaining the type of the mobile IP from the mobile IP type providing unit in the process of entering the idle mode; or, in performing location update and paging control element relocation, the type used to acquire mobile IP to the old anchor paging control element.
Wherein, the mobile IP type providing unit includes: a data path function, a mobile IP foreign agent, an old paging control unit, an authenticator, a proxy mobile IP client, a serving access network gateway, a relay paging control unit, a context proxy and/or a context server.
In the system of the present invention, the first network entity includes: a relay paging control unit, a target data path functional unit, or a target foreign agent; the second network entity comprises: a new anchor paging control unit or an old anchor paging control unit.
In summary, in the present invention, after the paging control unit acquires the type of the mobile IP, the relay paging control unit sends a relocation request message including a foreign agent relocation instruction and information to the paging control unit, and the paging control unit sends a relocation response message including a foreign agent relocation response and information to the relay paging control unit. The invention can make the paging control unit obtain the type of the mobile IP and judge the legality of the received relocation request message, thereby accurately judging whether the paging control unit needs to initiate the relocation request message, ensuring the legality of the relocation response message sent by the paging control unit, avoiding the system from initiating unnecessary relocation operation, improving the reliability of the system operation and saving the operation resources.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (20)
1. A method for relocating a terminal in an idle mode in a communication system, comprising:
a first network entity sends a request message for initiating relocation operation to a second network entity;
after receiving the request message for initiating the relocation operation, the second network entity determines corresponding relocation parameter information and returns a response message containing the relocation parameter information for initiating the relocation operation to the first network entity;
and the first network entity carries out relocation processing according to the relocation parameter information.
2. The method of claim 1, wherein the information carried in the request message for initiating the relocation operation comprises: a foreign agent relocation indication, location information of the target data path function and/or location information of the target foreign agent.
3. The method of claim 1, wherein said relocation parameter information includes: the result of the response to the foreign agent relocation indication, location information of the proxy mobile IP, location information of the anchor data path function, and/or location information of the foreign agent.
4. The method as claimed in claim 1, wherein said performing relocation process by said first network entity according to said relocation parameter information comprises:
determining that relocation is allowed according to the relocation parameter information, and then performing relocation operation according to the specific relocation parameter information;
or,
and if the relocation is determined not to be allowed according to the relocation parameter information, the relocation operation is not carried out.
5. The method according to claim 4, wherein the performing relocation operation according to the specific relocation parameter information comprises:
after the first network entity determines that the position updating operation is completed, a relocation request message is sent to the proxy mobile IP client according to the information carried in the response message for initiating the relocation operation;
after receiving the relocation request message sent by the first network entity, the proxy mobile IP client carries out relocation operation and replies a relocation response message to the first network entity.
6. The method as claimed in claim 5, wherein after the first network entity performs the relocation operation according to the specific relocation parameter information, the method further comprises:
a first network entity sends a session release request message to an anchoring foreign agent or an anchoring data path functional unit;
and the anchoring foreign agent or the anchoring data path functional unit replies a session release response message to the first network entity after performing session release operation according to the received session release request message.
7. The method as claimed in claim 6, wherein the information carried in the session release response message comprises: quality of service assurance information and traffic flow information associated with the terminal.
8. The method according to any one of claims 1 to 7,
the first network entity comprises: a relay paging control unit, a target data path functional unit, or a target foreign agent;
the second network entity comprises: a new anchor paging control element or an old anchor paging control element or a serving access network gateway.
9. The method according to any of claims 1 to 7, further comprising, before said first network entity sending a request message to initiate a relocation operation to a second network entity: and the second network entity obtains the type of the mobile IP.
10. The method of claim 9, wherein when the second network entity is a paging control element, the operation of obtaining the mobile IP type comprises:
in the process that the terminal enters the idle mode, the paging control unit acquires the type of the mobile IP through the mobile IP type providing unit; or,
the terminal sends a mobile IP type message from the old anchor paging control unit to the new anchor paging control unit in the process of performing location update and paging control unit relocation.
11. The method as claimed in claim 10, wherein said mobile IP type providing unit comprises:
a data path function, a mobile IP foreign agent, an old paging control unit, an authenticator, a proxy mobile IP client, a serving access network gateway, a relay paging control unit, a context proxy and/or a context server.
12. The method as claimed in claim 10, wherein said process of said paging control unit acquiring a type of mobile IP through a mobile IP type providing unit comprises:
the anchoring paging control unit sends a mobile IP type request message for requesting to acquire the type of the mobile IP to an anchoring data path unit;
the anchor data path unit sends a mobile IP type response message containing the type information of the mobile IP to the anchor paging control unit.
13. The method of claim 10, wherein prior to said old anchor paging control unit sending a mobile IP type message to a new anchor paging control unit, further comprising:
the old paging control unit sends a mobile IP type request message to the mobile IP type storage unit, and the mobile IP type storage unit sends the corresponding mobile IP type to the old paging control unit through a mobile IP type response message.
14. The method as claimed in claim 13, wherein said information carried in said mobile IP type request message comprises: an indication of mobile IP type, a relocation request and/or a foreign agent relocation request is requested.
15. A relocation system for a terminal in an idle mode in a communication system, comprising:
a relocation operation initiation processing unit, arranged in the first network entity, for sending a request message for initiating a relocation operation to the second network entity;
a relocation parameter response processing unit, arranged in the second network entity, for determining the corresponding relocation parameter information after receiving the request message for initiating relocation operation, and returning a response message for initiating relocation operation containing the relocation parameter information to the first network entity;
and the relocation processing unit is arranged in the first network entity and is used for carrying out relocation operation according to the relocation parameter information.
16. The system of claim 15,
the first network entity comprises: a relay paging control unit, a target data path functional unit, or a target foreign agent;
the second network entity comprises: a new anchor paging control element or an old anchor paging control element or a serving access network gateway.
17. The system of claim 15, wherein relocating the processing unit comprises:
a relocation initiating unit, configured to send a relocation request message to the proxy mobile IP client according to the relocation parameter information after the location update operation is completed;
and the relocation processing unit is arranged at the proxy mobile IP client and used for carrying out relocation operation after receiving the relocation request message sent by the first network entity and replying a relocation response message to the first network entity.
18. The system of claim 17, wherein said system further comprises:
a session release initiating unit, which is arranged in the first network entity and is used for sending a session release request message to the anchoring foreign agent or the anchoring data path functional unit;
and the session release processing unit is arranged in the anchoring foreign agent or the anchoring data path functional unit and used for replying a session release response message to the first network entity after performing session release operation according to the received session release request message.
19. The system of claim 15, 16, 17 or 18, further comprising:
a mobile IP type obtaining unit, arranged in the second network entity, for obtaining the type of the mobile IP from the mobile IP type providing unit in the process of entering the idle mode; or, in performing location update and paging control element relocation, the type used to acquire mobile IP to the old anchor paging control element.
20. The system according to claim 19, wherein said mobile IP type providing unit comprises:
a data path function, a mobile IP foreign agent, an old paging control unit, an authenticator, a proxy mobile IP client, a serving access network gateway, a relay paging control unit, a context proxy and/or a context server.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100987432A CN101106801A (en) | 2006-07-12 | 2006-07-12 | A re-positioning method and system for terminal under idle mode in communication system |
| PCT/CN2007/070289 WO2008009239A1 (en) | 2006-07-12 | 2007-07-12 | Method, apparatus and system for terminal relocation in communication system under idle mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100987432A CN101106801A (en) | 2006-07-12 | 2006-07-12 | A re-positioning method and system for terminal under idle mode in communication system |
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| CN101106801A true CN101106801A (en) | 2008-01-16 |
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| CNA2006100987432A Pending CN101106801A (en) | 2006-07-12 | 2006-07-12 | A re-positioning method and system for terminal under idle mode in communication system |
Country Status (2)
| Country | Link |
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| CN (1) | CN101106801A (en) |
| WO (1) | WO2008009239A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860930B (en) * | 2009-04-07 | 2012-09-05 | 中兴通讯股份有限公司 | Re-positioning method in mobile communication system |
| CN102811277A (en) * | 2011-05-31 | 2012-12-05 | 比亚迪股份有限公司 | Mobile terminal and method for managing sharing resources |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6725044B2 (en) * | 2002-08-15 | 2004-04-20 | Thomson Licensing S.A. | Technique seamless handoff of a mobile terminal user from a wireless telephony network to a wireless LAN |
| WO2006045983A1 (en) * | 2004-10-27 | 2006-05-04 | France Telecom | Method for intercepting http redirection requests, system and server device for carrying out said method |
| CN100441031C (en) * | 2004-11-19 | 2008-12-03 | 华为技术有限公司 | Method for preventing message from repeating and attacking under idle mode |
| CN100450295C (en) * | 2005-08-24 | 2009-01-07 | 华为技术有限公司 | Method of controlling position renewing |
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- 2006-07-12 CN CNA2006100987432A patent/CN101106801A/en active Pending
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2007
- 2007-07-12 WO PCT/CN2007/070289 patent/WO2008009239A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860930B (en) * | 2009-04-07 | 2012-09-05 | 中兴通讯股份有限公司 | Re-positioning method in mobile communication system |
| CN102811277A (en) * | 2011-05-31 | 2012-12-05 | 比亚迪股份有限公司 | Mobile terminal and method for managing sharing resources |
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| WO2008009239A1 (en) | 2008-01-24 |
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