CN102170709B - Method and mobile equipment for synchronously maintaining context status of package data protocol - Google Patents
Method and mobile equipment for synchronously maintaining context status of package data protocol Download PDFInfo
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- CN102170709B CN102170709B CN201010115341.5A CN201010115341A CN102170709B CN 102170709 B CN102170709 B CN 102170709B CN 201010115341 A CN201010115341 A CN 201010115341A CN 102170709 B CN102170709 B CN 102170709B
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Abstract
The invention relates to a method for synchronously maintaining a context status of a package data protocol PDP. The method includes the following steps of when a circuit-switched connection is established with a wireless communication network, requiring the wireless communication network to suspend a first package-switched service; closing the context of a first package data protocol when the circuit-switched connection is established; and notifying the deactivation state of the context status of the first package data protocol to the wireless communication network when the circuit-switched connection is cut off and the wireless communication network receives a reply message of the first package-switched service. The mobile equipment includes a suspension request module used to require the wireless communication network to suspend the first package-switched service; a deactivation module of the package data protocol context used to deactivate the first package data protocol context; and a state notifying module used to notify the deactivation state of the first package data protocol context to the wireless communication network.
Description
Technical field
The present invention has the mobile device about wireless communication networks, espespecially a kind ofly between wireless communication networks and mobile device, synchronize and maintain packet data communications protocol (packet data protocol, PDP) method of context state and relevant mobile device.
Background technology
There is the general packet of support wireless service (General Packet Radio Service at present, GPRS) global system for mobile communications (Global System for Mobile communications, GSM) in network (hereinafter referred is GSM/GPRS network), when mobile device (or claiming user's equipment (user equipment)) has at least one not support dual transfer mode (dual transfer mode with network, DTM) time, to cause mobile device to carry out circuit switching link (circuit-switched connection) with network simultaneously and link (packet-switched connection) with packet-switched.In GSM/GPRS network, circuit switching links the call as GSM and links, and voice call service can be provided; Packet-switched links the link as GPRS, and data transport service can be provided.Therefore, do not supporting under the situation of dual transfer mode, mobile device is being set up after GSM call link with network, just cannot set up GPRS links, so in some cases, will make cannot synchronize between network and mobile device the PDP Context state that maintains (PDP context status).
Fig. 1 shows in the prior art how the nonsynchronous problem of PDP Context state occurs between mobile device and GSM/GPRS network.In the flow process of Fig. 1, in mobile device, there is at the beginning the PDP Context that starts (activated), for packet-switched service (at GSM/GPRS network, being GPRS service).Then, in step 11, if user will carry out GSM call, for example make a phone call or answer the call, mobile device is carried out GPRS time out program on the one hand, and (GPRS suspension procedure, referring to 3GPP TS 44.018,3.4.25 joint), require network that packet-switched service is suspended, the link program of conversing on the other hand, links to set up GSM call with network.Link after foundation in GSM call, in step 12, if user does not want to re-use packet-switched service, and want to close PDP Context, mobile device can be carried out PDP Context bolt down procedure (PDP context deactivation procedure, referring to 3GPP TS 24.008,6.1.3.4 joint), close PDP Context requirement message (Deactivate PDP Context Request message) to attempt sending, and start timer T3390, wait for the response of network.But, because linking, the call of GSM now sets up, and mobile device cannot be set up GPRS and link that this is closed to PDP Context requirement message and delivers to network, so until timer is counted when complete, mobile device all also can not be received the response of network.Described in 3GPP TS 24.008, the 6.1.3.4.3 joints, now mobile device can heavily send and cut out PDP Context requirement message, and resets and start timer T3390, so repeatedly carries out.After the 5th counting of timer T3390 is complete, mobile device just cuts out PDP Context at its local side, the relevant Radio Resource being configured to discharge and the relevant information of deleting PDP Context." close at local side " (deactivate locally) mean mobile device not with network connectivity to have synchronizeed PDP Context bolt down procedure, and only one-sided execution closed, therefore network do not know that mobile device cut out PDP Context.Then, in step 13, in the time that user will finish GSM call, mobile device is carried out call cut-out program, and in step 14, whether network can be carried out GPRS and reply (GPRS resumption), and indicate and reply successfully in the follow-up Radio Resource passage release message (RR Channel Release message) of delivering to mobile device.If GPRS replys successfully, mobile device just judges that will can not carry out GPRS replys, thereby can not carry out Routing Area Update program (routing area updating procedure yet, referring to 3GPP TS 24.008,4.7.5.1 joint), now just can throw into question: the PDP Context in mobile device is closed in fact, but the PDP Context of network is still in starting state, thereby makes between mobile device and network PDP Context state asynchronous.In the time that mobile device wants to set up GPRS link, network may be ignored, and causes mobile device cannot use the problem of GPRS service subsequently.
Summary of the invention
The object of the invention is to solve prior art can cause PDP Context state to produce the technical problem of nonsynchronous situation in both sides.
For achieving the above object, in one embodiment of this invention, disclose a kind of method that synchronously maintains PDP Context state, be used among a mobile device, between this mobile device and wireless communication networks, start a PDP Context for packet-switched service.The method comprises: in the time setting up a circuit switching link with wireless communication networks, require wireless communication networks that packet-switched service is suspended; Link after foundation in this circuit switching, close this PDP Context; And link after cut-out in this circuit switching, when receive the reply notice of packet-switched service from wireless communication networks, notify the closed condition of this PDP Context to give wireless communication networks.
In another embodiment of the present invention, disclosed a kind of mobile device, can with wireless communication networks between synchronize the PDP Context state that maintains.Between mobile device and wireless communication networks, start one for packet-switched service PDP Context.This mobile device comprises: suspend and require module, in order to set up a circuit switching at mobile device and wireless communication networks while linking, require wireless communication networks by packet-switched service time-out; PDP Context closing module, in order to link after foundation in this circuit switching, closes this PDP Context; And state notifying module, in order to link after cut-out in this circuit switching, when receive the reply notice of packet-switched service from wireless communication networks, the closed condition notice of this PDP Context is given to wireless communication networks.
Beneficial effect of the present invention is, only need to carry out a Routing Area Update program, and must not carry out PDP Context bolt down procedure twice, just can be by the closed condition notice networking of first and second PDP Context, the workload that therefore can save signal transmission between running gear and networking (signaling).
Brief description of the drawings
For showing in the prior art, between mobile device and GSM/GPRS network, how there is the nonsynchronous problem of PDP Context state in Fig. 1.
Fig. 2 is for showing how one embodiment of the invention process the nonsynchronous problem of PDP Context state between mobile device and GSM/GPRS network.
Fig. 3 is according to one embodiment of the invention, the flow chart of the method for the PDP Context state of synchronizeing that maintains between wireless communication networks and mobile device illustrating.
Fig. 4 is the partial content of more new demand message of explicit routing district.
Fig. 5 is the form that shows the information element of PDP Context state.
Fig. 6 is the calcspar of an embodiment of mobile device of the present invention.
Description of reference numerals:
60-mobile device; 61-time-out requires module; 62-PDP context closing module; 63-state notifying module.
Embodiment
Each embodiment described in this section, both have at least one not support the situation of dual transfer mode (dual transfer mode) to be all applied to mobile device (such as but not limited to mobile phone) and wireless communication networks (such as but not limited to GSM/GPRS network).So-called wireless communication networks is not supported the situation of dual transfer mode herein, and not necessarily whole network is not supported, likely just subnetwork equipment is not supported as some unit (cell).Therefore,, when mobile device is when not supporting the network equipment of dual transfer mode and network interconnection, the present invention is still suitable for.Below will coordinate diagram, these embodiment will be described in detail in detail.
In GSM/GPRS network, if mobile device has the GPRS of support function, need at set intervals to carry out Routing Area Update program (routing area updating procedure), to inform the Route Area at its current place of network.Under some other particular conditions, for example, in the time that mobile device judgement must be carried out GPRS reply (GPRS resumption), mobile device also can be carried out Routing Area Update program, as described in the 4.7.5.1 joint of 3GPP TS 24.008.But, according to above described in " prior art " joint, in the step 14 of Fig. 1, if network is replied GPRS successfully and informs mobile device after GSM end of conversation, mobile device just judges that not needing to carry out GPRS replys, thereby also can not carry out Routing Area Update program, and cause between mobile device and network PDP Context state asynchronous.In view of this, in one embodiment of this invention, newly increase mobile device and need carry out a particular condition of Routing Area Update program, that is, if mobile device previously cut out PDP Context in local side, mobile device also needs to carry out Routing Area Update program, as shown in the step 21 of Fig. 2 flow process, 22.In step 21, mobile device judgement was previously closed PDP Context in local side, so carry out Routing Area Update program in step 22, to send Routing Area Update requirement message (Routing Area Update Request message) to network, and this message includes the information element (information element) of the PDP Context state (being now closed condition) that can show in current mobile device, therefore respond Routing Area Update receipt message (Routing Area Update Accept message) to mobile device at network, between mobile device and network, can reach the PDP Context state of synchronizeing, as shown in Figure 2.
Fig. 3 is according to one embodiment of the invention, the flow chart of the method that synchronizeing between wireless communication networks and mobile device of illustrating maintains PDP Context state.The method is used in mobile device.Carrying out before the method, between mobile device and wireless communication networks, start the first PDP Context for the first packet-switched service.In step 31, when setting up a circuit switching when mobile device and wireless communication networks and linking (as voice call links), mobile device requires wireless communication networks that the first packet-switched service is suspended.In the time that wireless communication networks is GSM/GPRS network, this circuit switching link can be GSM call and links, and mobile device can be carried out GPRS time out program (GPRS suspension procedure, referring to 3GPP TS 44.018,3.4.25 joint), to require GSM/GPRS network that the first packet-switched service is suspended.
In step 32, link after foundation in this circuit switching, mobile device cuts out the first PDP Context in local side.Mobile device can automatically perform and cut out according to inner setting, or according to user's requirement, carries out this closing motion.If wireless communication networks is GSM/GPRS network, mobile device is being carried out PDP Context bolt down procedure (PDP context deactivation procedure, referring to 3GPP TS 24.008,6.1.3.4 joint) during, repeat to send for five times and close PDP Context requirement message (Deactivate PDP Context Request message) but all do not set while receiving in the time that network is responded at timer T3390, just close the first PDP Context in local side.
In step 33, link after cut-out in this circuit switching, if mobile device receives the reply notice of the first packet-switched service from wireless communication networks, and the first packet-switched service of learning has been replied successfully, mobile device notifies the closed condition of the first PDP Context to give wireless communication networks, so that mobile device and internetwork PDP Context state synchronized.In the time that wireless communication networks is GSM/GPRS network, mobile device can see through and carry out Routing Area Update program, sends a Routing Area Update requirement message, to notify GSM/GPRS network by the closed condition of the first PDP Context.This Routing Area Update requires the partial content of message as shown in Figure 4 (referring to 3GPP TS 24.008, form 9.4.14), wherein information element identification code (the information element identifier of PDP Context state (PDP context status), IEI) be 32, can be used to record the current state (being now closed condition) of the first PDP Context.Therefore, network is being received after this Routing Area Update requirement message, just can, by the information element of the PDP Context state including, the state of the first PDP Context be upgraded, to keep synchronizeing with mobile device.
Preferably, in step 32, mobile device also stores one and cuts out record, to show that mobile device cuts out the first PDP Context in local side; In step 33, mobile device cuts out record according to this, by the closed condition notice wireless communication networks of the first PDP Context.
The embodiment of Fig. 3 may extend to the situation that has started two or more PDP Contexts between mobile device and wireless communication networks simultaneously.Below taking two PDP Contexts as example: except the first PDP Context, also started the second PDP Context for the second packet-switched service between mobile device and network.In this example, each step adjustment of Fig. 3 is as follows: in step 31, set up circuit switching while linking when mobile device and network, mobile device requires network that first and second packet-switched service is suspended; In step 32, link after foundation in circuit switching, mobile device cuts out first and second PDP Context in local side; In step 33, link after cut-out in circuit switching, if mobile device automatic network receives the reply notice of first and second packet-switched service, mobile device is by the closed condition informing network of first and second PDP Context.If GSM/GPRS network, mobile device only need be carried out Routing Area Update program one time, just can be simultaneously by the closed condition notice GSM/GPRS network of first and second PDP Context.This be because, require in message at Routing Area Update, the information element of PDP Context state can record the current state of multiple PDP Contexts simultaneously, as shown in Figure 5 (referring to 3GPP TS 24.008, form 10.5.148), wherein each NSAPI (is network service access point identifier, Network Service Access point identification code) be a bit, be used for representing the state of a PDP Context, 0 representative is closed, 1 representative starts (but in current technical specification, NSAPI (0) ~ NSAPI (4) retain do not use).Owing to only needing to carry out a Routing Area Update program, and must not carry out PDP Context bolt down procedure twice, just can be by the closed condition informing network of first and second PDP Context, the workload that therefore can save signal transmission between mobile device and network (signaling).As for the practice in the time having started plural PDP Context between mobile device and network, can analogize according to above-mentioned steps simultaneously.
Fig. 6 is the calcspar of an embodiment of mobile device of the present invention, wherein, this mobile device 60 can with a wireless communication networks between synchronize and maintain PDP Context state, and comprise a time-out and require module 61, a PDP Context closing module 62 and a state notifying module 63.In this embodiment, between mobile device 60 and this wireless communication networks, started the first PDP Context for the first packet-switched service.Suspend and require module 61 in the time that mobile device 60 and network are set up a circuit switching link, to require network that the first packet-switched is served and suspended.PDP Context closing module 62 can link after foundation in this circuit switching, closes the first PDP Context in mobile device 60 local sides.Link after cut-out in this circuit switching, if mobile device 60 automatic networks receive the reply notice of the first packet-switched service, state notifying module 63 can be by the closed condition informing network of the first PDP Context.In the time that network is GSM/GPRS network, state notifying module 63 can see through and carry out Routing Area Update program, sends a Routing Area Update requirement message, to notify GSM/GPRS network by the closed condition of the first PDP Context.
Preferably, PDP Context closing module 62 is also closed record in the interior storage one of mobile device 62, to show that mobile device 62 cuts out the first PDP Context in local side; This closes record 63 foundations of state notifying module, by the closed condition informing network of the first PDP Context.
If started first and second PDP Context between mobile device 60 and network simultaneously, to be respectively used to first and second packet-switched service, suspend and require module 61 in the time that aforementioned circuit exchange link is set up, require network that first and second packet-switched service is all suspended; PDP Context closing module 62 links after foundation in this circuit switching, closes first and second PDP Context in mobile device 60 local sides; Link after cut-out in this circuit switching, if mobile device 60 automatic networks receive the reply notice of first and second packet-switched service, state notifying module 63 is by the closed condition informing network of first and second PDP Context.In the time that network is GSM/GPRS network, 63 of state notifying modules need to carry out a Routing Area Update program, just can be simultaneously by the closed condition notice GSM/GPRS network of first and second PDP Context.Reason in explanation above, repeats no more.
Please note, aforesaid time-out requires module 61, PDP Context closing module 62 and state notifying module 63 can utilize the modes such as hardware, firmware (be the combination of hardware unit, computer instruction and data, computer instruction and data are for being stored in hardware unit with read-only software form) or electronic system to implement.The example of hardware comprises analogous circuit, digital circuit and hybrid circuit (mixed circuit), as microcircuit (microcircuit), microchip (microchip) or silicon etc.The example of electronic system comprises System on Chip/SoC (System on Chip, SoC), system in package (System in Package, SiP) or module computer (Computer on Module, CoM) etc.
The above description of this invention is illustrative, and nonrestrictive, and those skilled in the art is understood, and can carry out many amendments, variation or equivalence to it, but they all will fall within the scope of protection of the present invention in claim within the spirit limiting and scope.
Claims (10)
1. one kind synchronously maintains the method for packet data communications protocol context state, be used among a mobile device, wherein between this mobile device and a wireless communication networks, start a first packet data communications protocol context for one first packet-switched service, it is characterized in that, the method comprises:
In the time setting up a circuit switching link with this wireless communication networks, require this wireless communication networks that this first packet-switched service is suspended;
Link after foundation in this circuit switching, close this first packet data communications protocol context; And
Link after cut-out in this circuit switching, in the time that this wireless communication networks receives the reply notice of this first packet-switched service certainly, notify the contextual closed condition of this first packet data communications protocol to give this wireless communication networks.
2. the method for claim 1, is characterized in that, this is closed step and more comprises to store and one close record, to show that this mobile device cuts out this first packet data communications protocol context in local side; In this notifying process, for closing record according to this, notify the contextual closed condition of this first packet data communications protocol to give this wireless communication networks.
3. the method for claim 1, is characterized in that, this wireless communication networks is the global system for mobile communications GSM network of a support general packet wireless service GPRS; This notifying process, for seeing through the Routing Area Update program of execution, is given this wireless communication networks by contextual this first packet data communications protocol closed condition notice.
4. method as claimed in claim 3, it is characterized in that, this Routing Area Update program package is containing sending a Routing Area Update requirement message to this wireless communication networks, and wherein this Routing Area Update requires the information element that message comprises this first packet data communications protocol context state of a demonstration.
5. the method for claim 1, is characterized in that, this wireless communication networks is the global system for mobile communications GSM network of a support general packet wireless service GPRS; Between this mobile device and this wireless communication networks, also started a second packet data communications protocol context for one second packet-switched service, the method also comprises:
In the time that this circuit switching link is set up, require this wireless communication networks that this second packet-switched service is suspended; And
Link after foundation in this circuit switching, close this second packet data communications protocol context;
Wherein, link after cut-out in this circuit switching, in the time that this wireless communication networks receives the reply notice of this first and second packet-switched service certainly, see through the Routing Area Update program of execution, so that contextual this first and second packet data communications protocol closed condition notice is given to this wireless communication networks.
6. a mobile device, can synchronize with a wireless communication networks packet data communications protocol PDP Context state that maintains, wherein between this mobile device and this wireless communication networks, start a first packet data communications protocol context for one first packet-switched service, it is characterized in that, this mobile device comprises:
One suspends and requires module, in order to set up a circuit switching at this mobile device and this wireless communication networks while linking, requires this wireless communication networks by this first packet-switched service time-out;
One packet data communications protocol context closing module, in order to link after foundation in this circuit switching, closes this first packet data communications protocol context; And
One state notifying module, in order to link after cut-out in this circuit switching, in the time that this wireless communication networks receives the reply notice of this first packet-switched service certainly, gives this wireless communication networks by contextual this first packet data communications protocol closed condition notice.
7. mobile device as claimed in claim 6, is characterized in that, this packet data communications protocol context closing module also stores one and closes record, to show that this mobile device cut out the first packet data communications protocol context; This state notifying module is closed record according to this, and contextual this first packet data communications protocol closed condition notice is given to this wireless communication networks.
8. mobile device as claimed in claim 6, is characterized in that, this wireless communication networks is the global system for mobile communications GSM network of a support general packet wireless service GPRS; This state notifying module sees through the Routing Area Update program of execution, and contextual this first packet data communications protocol closed condition notice is given to this wireless communication networks.
9. mobile device as claimed in claim 8, it is characterized in that, this Routing Area Update program package is containing sending a Routing Area Update requirement message to this wireless communication networks, and wherein this Routing Area Update requires the information element that message comprises this first packet data communications protocol context state of a demonstration.
10. mobile device as claimed in claim 6, is characterized in that, this wireless communication networks is the global system for mobile communications GSM network of a support general packet wireless service GPRS; Between this mobile device and this wireless communication networks, also start a second packet data communications protocol context for one second packet-switched service; This time-out requires module in the time that this circuit switching link is set up, and also requires this wireless communication networks that this second packet-switched service is suspended; This packet data communications protocol context closing module links after foundation in this circuit switching, also closes this second packet data communications protocol context; Link after cut-out in this circuit switching, in the time that this wireless communication networks receives the reply notice of this first and second packet-switched service certainly, this state notifying module sees through the Routing Area Update program of execution, and contextual this first and second packet data communications protocol closed condition notice is given to this wireless communication networks.
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| CN103067939B (en) * | 2012-12-19 | 2016-11-09 | 广东欧珀移动通信有限公司 | The method and apparatus reducing mobile terminal radiating |
| CN104284443A (en) * | 2013-07-03 | 2015-01-14 | 中国移动通信集团广东有限公司 | Method for synchronizing PDP state and network side device |
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| CN1926904A (en) * | 2004-03-30 | 2007-03-07 | 索尼爱立信移动通讯股份有限公司 | Methods, systems and computer program products for suspending packet-switched sessions to a wireless terminal |
| CN101064644A (en) * | 2006-04-30 | 2007-10-31 | 华为技术有限公司 | Method and system for sensing state of user to perform IMS service and give notice |
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| US7983242B2 (en) * | 2003-08-18 | 2011-07-19 | Qualcomm, Incorporated | Packet data service with circuit-switched call notification |
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| CN1926904A (en) * | 2004-03-30 | 2007-03-07 | 索尼爱立信移动通讯股份有限公司 | Methods, systems and computer program products for suspending packet-switched sessions to a wireless terminal |
| CN101064644A (en) * | 2006-04-30 | 2007-10-31 | 华为技术有限公司 | Method and system for sensing state of user to perform IMS service and give notice |
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