CN101959162A - General packet radio service support node and signaling transmission method - Google Patents
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- CN101959162A CN101959162A CN2010105043626A CN201010504362A CN101959162A CN 101959162 A CN101959162 A CN 101959162A CN 2010105043626 A CN2010105043626 A CN 2010105043626A CN 201010504362 A CN201010504362 A CN 201010504362A CN 101959162 A CN101959162 A CN 101959162A
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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Abstract
The invention discloses a general packet radio service support node which comprises a receiving module, a message identification module, a weight setting module and a sending module, wherein the receiving module is used for receiving a signaling activating request from a mobile station and a signaling creation response of a general packet radio gateway support node; the message identification module is used for identifying whether a signaling creation request is a initial request or a retransmitted request; the weight setting module is used for setting the weight value of the differentiated service code point of the initial signaling creation request and increasing the weight value of the differentiated service code point of the retransmitted signaling creation request; and the sending module is used for sending the signaling creation request to the general packet radio gateway support node. The invention also discloses a signaling transmission method. When a signaling message is judged to be retransmitted, by increasing the weight value of the differentiated service code point of signaling messages, the general packet radio service support node and the signaling transmission method can reduce the probability that signaling messages are discarded for network congestion.
Description
Technical field
The present invention relates to 3G (Third Generation) Moblie, specially refer to general packet wireless service support node and signal transmission method.
Background technology
Development along with the third generation mobile technology, land radio access web (UMTS TerrestrialRadio Access Network, UTRAN) introduced the IP technology, (Servicing GPRS Support Node, SGSN) Gb inserts and a kind of bearing mode of Iu access as general packet wireless service support node SGSN with it.Complete IP network has reduced the construction and the maintenance cost of network, but has also brought the congested risk of IP network simultaneously.In IP network, mainly distinguish the priority of transmission for the different weighted value of packet mark of different business by general grouped wireless gateway support node (GatewayGPRS Support Node, GGSN) differentiated services code points at present.When network congestion takes place, the probability that the packet that priority is more high is dropped will be more little.
With reference to Fig. 1, be the network schematic flow sheet of signalling just often.Travelling carriage (Mobile Station, MS) 5 data, services by PDP activation signaling process realization GPRS, the DSCP weighted value of fixing on the mark in the IP head that SGSN1 and GGSN3 have realized at signaling message (34), SGSN1 receives and creates the block data protocol context signaling response, SGSN1 and UTRAN connect, UTRAN and MS5 set up RAB (Radio Access Bear, RAB), then should activate the success of block data protocol context signaling requesting activation, SGSN1 sends to activate and receives message to MS5.
So at present shortcoming that realizes: when the network congestion grade reached the signaling message that need abandon this priority, SGSN1 and GGSN3 can't control by the transmission quality to signaling initiatively, and the congestion level that depends on network that can only be passive reduces.
Summary of the invention
Main purpose of the present invention is for the weighted value of the differentiated services code points of the described establishment signaling of increase request, to reduce the probability that signaling message is dropped under the network congestion.
For solving the problems of the technologies described above, the present invention proposes a kind of general packet wireless service support node, comprising: receiver module is used for the activation signaling request of receiving mobile and the establishment signaling response of general grouped wireless gateway support node; The message identification module is used for receiving the request of activation signaling and establishment signaling response of described receiver module, and identifying the request of described establishment signaling is to ask first or retransmit; Weight arranges module, receive described message identification module to the recognition result of described establishment signaling request, the first weighted value of the differentiated services code points of the establishment signaling request of request is set, increases the weighted value of the differentiated services code points of the establishment signaling request that retransmits; Sending module receives the described establishment signaling request that described weight arranges module, sends to create the signaling request to described general grouped wireless gateway support node.
Preferably, described message identification module also is used for identifying described activation signaling requesting activation success or activates failure.
Preferably, described message identification module also is used for setting the response time that receives described establishment signaling response, sets the number of retransmissions that retransmits.
Preferably, described message identification module judgement receives described establishment signaling response for to activate successfully in the described response time; Under the re-transmission state of judgement more than or equal to the number of retransmissions of described setting, do not receive the state of described establishment signaling response in the described response time for activating failure.
Preferably, described weight arranges the numerical value of weighted value that module also be used for to set increases the differentiated services code points of described establishment signaling request, and according to the weighted value of the differentiated services code points of the described establishment signaling of the numerical value enhancing request of described weighted value.
Preferably, the request of described activation signaling is for activating the request of block data protocol context signaling, the request of described establishment signaling is for creating the request of block data protocol context signaling, described establishment signaling response is for creating the block data protocol context signaling response, described activation is accepted message and is accepted message for activating block data protocol context, and described activation refuse information is for activating the block data protocol context refuse information.
The invention allows for a kind of signal transmission method, may further comprise the steps: the activation signaling request of general packet wireless service support node receiving mobile; Determine whether to ask first; If ask first, the weighted value of the differentiated services code points of described establishment signaling request is set then; If not first request then for retransmitting, increases the weighted value of the differentiated services code points of described establishment signaling request; Transmit the request of described establishment signaling to described general grouped wireless gateway support node.
Preferably, further comprising the steps of: as to judge whether the request of described activation signaling activates success; If activate successfully, then send to activate and accept message to described travelling carriage; And if fail to activate successfully, then send to activate refuse information to described travelling carriage.
Preferably, the described step of judging whether the request of described activation signaling successfully activates may further comprise the steps: described general packet wireless service support node is set the response time that receives described establishment signaling response, sets the number of retransmissions that retransmits; Whether judgement receives described establishment signaling response in the described response time; If in the described response time, receive described establishment signaling response, then successfully activate; If in the described response time, do not receive described establishment signaling response, judge further that then whether number of times that signaling resends is less than described number of retransmissions; If the number of times that resends, judges then that the request of described establishment signaling is for retransmitting less than described number of retransmissions; If the number of retransmissions that the number of times that resends retransmits more than or equal to described setting signaling, activation then fails.
To sum up, when the present invention retransmits signaling message to the wireless universal gateway support node by general packet wireless service support node, increase the weighted value of the differentiated services code points of described establishment signaling request, reduced the probability that signaling message is dropped under the network congestion.
Description of drawings
Fig. 1 is the schematic flow sheet of network signaling transmission just often in the prior art of the present invention;
Fig. 2 is the module map of general packet wireless service support node of the present invention;
Fig. 3 is the flow chart of signal transmission method of the present invention;
Fig. 4 is the instantaneous congested schematic flow sheet of network in the signal transmission method of the present invention;
Fig. 5 is the congested once in a while schematic flow sheet of network in the signal transmission method of the present invention;
Fig. 6 is the schematic flow sheet of Chief Web Officer time congestion in the signal transmission method of the present invention.
The realization of the object of the invention, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
With reference to Fig. 2, be the module map of general packet wireless service support node.In the present embodiment, general packet radio service node (SGSN) 1 comprises receiver module 10, message identification module 20, and weight is provided with module 30 and sending module 40.
The establishment signaling response of the activation signaling request of receiver module 10 receiving mobiles (MS) 5 and general grouped wireless gateway support node (GGSN) 3.
Weight arranges module 30, and 20 pairs of recognition results that create the signaling request of receipt message identification module arrange the first weighted value of the differentiated services code points of the establishment signaling request of request, increase the weighted value of the differentiated services code points of the establishment signaling request that retransmits.Weight arranges the numerical value that module 30 is also set the weighted value that increases the differentiated services code points that creates the signaling request, and creates the weighted value of the differentiated services code points of signaling request according to the numerical value enhancing of weighted value.
Sending module 40 sends to create the signaling request to general grouped wireless gateway support node (SGSN) 1 and send to activate and accepts message or activate refuse information to travelling carriage (MS) 5.
In the present embodiment, activate the signaling request for activating block data protocol context (Packet DataProtocol context, PDP context) signaling request, create the signaling request for creating block data protocol context (PDP context) signaling request, create signaling response for creating block data protocol context (PDP context) signaling response, activation is accepted message and is accepted message for activating block data protocol context (PDPcontext), activates refuse information for activating block data protocol context (PDP context) refuse information.
In the present embodiment, weight arranges the priority weights level of module 30 planning DSCP, and the more big representative priority of DSCP value is more high.
Such as following table for creating in the signaling request transmission course example of DSCP weighted value:
| Number of retransmissions | The DSCP weighted value |
| Normally | 34 |
| 1 time | 36 |
| 2 times | 38 |
The number of retransmissions that SGSN1 definition signaling retransmits is 2 times.MS5 sends and activates PDP context request message to SGSN1, and SGSN1 transmits first and creates PDP context request message to GGSN3, and carrying DSCP normal weights value in the IP head of message is 34.When network generation congestion condition, create PDP context and ask to be judged as the packet of low priority and to be dropped.SGSN1 waits for receiving and creates the PDPcontext response timeout, starts resend message mechanism, retransmits the PDP context request 1 time of creating.
Retransmit for the 1st time when creating PDP context request message, carrying the high weighted value of DSCP in the IP head of message is 36.Create PDP context response if GGSN3 returns, then PDP context creates successfully, and SGSN1 sends and activates receipt message to MS5.Create PDP context request if retransmit, still do not receive the establishment PDP context response of GGSN3, then SGSN1 sends the 2nd re-transmission and creates the PDP request message.
Retransmit for the 2nd time when creating PDP context request message, carrying the high weighted value of DSCP in the IP head of message is 38.If GGSN3 creates PDP context response, then PDP context creates successfully, and SGSN1 sends and activates receipt message to MS5.Retransmit and create PDP context request, still do not receive the establishment PDP context response of GGSN3, then SGSN1 sends to MS5 and activates refuse information.
With reference to Fig. 3, be the flow chart of signal transmission method.Step is as follows:
In step S300, the activation signaling request of general packet wireless service support node 1 receiving mobile 5.
Whether SGSN1 judges establishment PDP request for asking first, if ask first, in step S302, general packet wireless service support node 1 is set the response time that receives the establishment signaling, sets the signaling number of retransmissions.In step S304, the weighted value of the differentiated services code points that creates the signaling request is set.And in step S306, transmission is created the signaling request to general grouped wireless gateway support node 3.
If not first request then for retransmitting, increases the weighted value of the differentiated services code points that creates the signaling request, be specially: the numerical value of setting the weighted value that increases the differentiated services code points that creates the signaling request; According to the numerical value of weighted value, enhancing creates the weighted value of the differentiated services code points of signaling request.
In the present embodiment, general packet wireless service support node 1 is set and is received the response time that creates signaling response, sets the number of retransmissions that retransmits.In step S308, judge in the response time, whether to receive the establishment signaling response, whether activate success with the activation signaling request of judging travelling carriage 5.If in the response time, receive the establishment signaling response, then in step S314, judge and create successfully, send to activate and accept message to travelling carriage 5.If in the response time, do not receive the establishment signaling response, then in step S310, judge that further number of times that signaling resends is whether less than the number of retransmissions of setting signaling and retransmitting.If less than number of retransmissions, then judging, the number of times that resends creates the signaling request for retransmitting.In step S312, increase the weighted value of the differentiated services code points that creates the signaling request.Return step S306, transmission creates the signaling request to general grouped wireless gateway support node 3.If the number of times that resends more than or equal to the number of retransmissions of setting the signaling re-transmission, then in step S316, is judged to create failure, send the activation refuse information to travelling carriage 5.
With reference to Fig. 4, be the instantaneous congested schematic flow sheet of network in the signal transmission method of the present invention.MS5 sends and activates block data protocol context signaling request (Activate PDP Context Request) to SGSN1, SGSN1 transmits first and creates block data protocol context signaling request (Create PDPContext Request) to GGSN3, and carrying DSCP normal weights value in the IP head of message is 34.When network generation congestion condition, it is overtime that SGSN1 waits for that reception creates block data protocol context signaling response (Create PDP Context Response), starts resend message mechanism, retransmits to create block data protocol context signaling request 1 time.
Retransmit for the 1st time when creating the request of block data protocol context signaling, carrying the high weighted value of DSCP in the IP head of message is 36.If returning, GGSN3 creates the block data protocol context signaling response, SGSN1 and UTRAN connect, UTRAN and MS5 set up RAB (Radio AccessBear, RAB), this activates the success of block data protocol context signaling requesting activation, and SGSN1 sends to activate and receives message (Activate PDP Context Accept) to MS5.
With reference to Fig. 5, be the congested once in a while schematic flow sheet of network in the signal transmission method of the present invention.After retransmitting the request of establishment block data protocol context signaling for the 1st time, still do not receive the establishment block data protocol context signaling response of GGSN3, then SGSN1 sends the 2nd time and retransmits establishment PDP request message.
Retransmit for the 2nd time when creating the request of block data protocol context signaling, carrying the high weighted value of DSCP in the IP head of message is 38.Create the block data protocol context signaling response if GGSN3 receives, SGSN1 and UTRAN connect, and UTRAN and MS5 set up RAB, then should activate the success of block data protocol context signaling requesting activation, and SGSN1 sends and activates receipt message to MS5.
With reference to Fig. 6, be the schematic flow sheet of Chief Web Officer time congestion in the signal transmission method of the present invention.In the present embodiment, the number of retransmissions of the SGSN1 of setting is 2 times.After SGSN1 retransmits for the 2nd time and creates the request of block data protocol context signaling, still do not receive the establishment block data protocol context signaling response of GGSN3, then activate failure, SGSN1 sends to MS5 and activates refuse information (Activate PDPContext Reject).
General packet wireless service support node provided by the present invention and signal transmission method, when retransmitting signaling message to the wireless universal gateway support node by general packet wireless service support node, increase the weighted value of the differentiated services code points that creates the signaling request, reduced the probability that signaling message is dropped under the network congestion.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. a general packet wireless service support node is characterized in that, comprising:
Receiver module is used for the activation signaling request of receiving mobile and the establishment signaling response of general grouped wireless gateway support node;
The message identification module is used for receiving the request of activation signaling and establishment signaling response of described receiver module, and identifying the request of described establishment signaling is to ask first or retransmit;
Weight arranges module, receive described message identification module to the recognition result of described establishment signaling request, the first weighted value of the differentiated services code points of the establishment signaling request of request is set, increases the weighted value of the differentiated services code points of the establishment signaling request that retransmits;
Sending module receives the described establishment signaling request that described weight arranges module, sends to create the signaling request to described general grouped wireless gateway support node.
2. general packet wireless service support node according to claim 1 is characterized in that: described message identification module also is used for identifying described activation signaling requesting activation success or activates failure.
3. general packet wireless service support node according to claim 2 is characterized in that: described message identification module also is used to set the response time that receives described establishment signaling response, sets the number of retransmissions that retransmits.
4. general packet wireless service support node according to claim 3 is characterized in that: described message identification module is judged and is received described establishment signaling response for to activate successfully in the described response time; Under the re-transmission state of judgement more than or equal to the number of retransmissions of described setting, do not receive the state of described establishment signaling response in the described response time for activating failure.
5. general packet wireless service support node according to claim 3, it is characterized in that: described weight is provided with the numerical value that module also is used to set the weighted value of the differentiated services code points that increases the request of described establishment signaling, and increases the weighted value of the differentiated services code points of described establishment signaling request one by one according to the numerical value of described weighted value.
6. according to each described general packet wireless service support node of claim 1-5, it is characterized in that: the request of described activation signaling is for activating the request of block data protocol context signaling, the request of described establishment signaling is for creating the request of block data protocol context signaling, described establishment signaling response is for creating the block data protocol context signaling response, described activation is accepted message and is accepted message for activating block data protocol context, and described activation refuse information is for activating the block data protocol context refuse information.
7. a signal transmission method is characterized in that, may further comprise the steps:
The activation signaling request of general packet wireless service support node receiving mobile;
Judge whether to be request first;
If ask first, the weighted value of the differentiated services code points of described establishment signaling request is set then;
If not first request then for retransmitting, increases the weighted value of the differentiated services code points of described establishment signaling request;
Transmit the request of described establishment signaling to described general grouped wireless gateway support node.
8. signal transmission method according to claim 7 is characterized in that, described if not request first, and then for retransmitting, the step of weighted value that increases the differentiated services code points of described establishment signaling request may further comprise the steps:
Set the numerical value of the weighted value of the differentiated services code points that increases the request of described establishment signaling;
According to the numerical value of described weighted value, increase the weighted value of the differentiated services code points of described establishment signaling request one by one.
9. signal transmission method according to claim 8 is characterized in that, and is further comprising the steps of:
Judge whether the request of described activation signaling activates success;
If activate successfully, then send to activate and accept message to described travelling carriage; And
If fail to activate successfully, then send and activate refuse information to described travelling carriage.
10. signal transmission method according to claim 9 is characterized in that: describedly judge whether the request of described activation signaling activates successful step and may further comprise the steps:
Described general packet wireless service support node is set the response time that receives described establishment signaling response, sets the number of retransmissions that retransmits;
Whether judgement receives described establishment signaling response in the described response time;
If in the described response time, receive described establishment signaling response, then activate successfully;
If in the described response time, do not receive described establishment signaling response, judge further that then whether number of times that signaling resends is less than described number of retransmissions;
If the number of times that resends, judges then that the request of described establishment signaling is for retransmitting less than described number of retransmissions;
If the number of retransmissions that the number of times that resends retransmits more than or equal to described setting signaling then activates failure.
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| CN2010105043626A CN101959162A (en) | 2010-10-11 | 2010-10-11 | General packet radio service support node and signaling transmission method |
| PCT/CN2011/077148 WO2012048597A1 (en) | 2010-10-11 | 2011-07-14 | Serving gprs support node and signaling transmission method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012048597A1 (en) * | 2010-10-11 | 2012-04-19 | 中兴通讯股份有限公司 | Serving gprs support node and signaling transmission method |
| CN103404065A (en) * | 2011-03-08 | 2013-11-20 | 高通股份有限公司 | Providing multiple retransmission policies for a single data stream by mapping differentiated services code point (DSCP) bit fields to media access control protocol data unit (MPDU) bit fields |
| CN103636284A (en) * | 2012-06-29 | 2014-03-12 | 华为技术有限公司 | Information processing method, forwarding plane apparatus and control plane apparatus |
| CN103404065B (en) * | 2011-03-08 | 2016-11-30 | 高通股份有限公司 | For the method and apparatus providing the multiple re-transmission policy for individual traffic |
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| CN101959162A (en) * | 2010-10-11 | 2011-01-26 | 中兴通讯股份有限公司 | General packet radio service support node and signaling transmission method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012048597A1 (en) * | 2010-10-11 | 2012-04-19 | 中兴通讯股份有限公司 | Serving gprs support node and signaling transmission method |
| CN103404065A (en) * | 2011-03-08 | 2013-11-20 | 高通股份有限公司 | Providing multiple retransmission policies for a single data stream by mapping differentiated services code point (DSCP) bit fields to media access control protocol data unit (MPDU) bit fields |
| US9438384B2 (en) | 2011-03-08 | 2016-09-06 | Qualcomm Incorporated | Providing multiple retransmission policies for a single data stream by mapping differentiated services code point (DSCP) bit fields to media access control protocol data unit (MPDU) bit fields |
| CN103404065B (en) * | 2011-03-08 | 2016-11-30 | 高通股份有限公司 | For the method and apparatus providing the multiple re-transmission policy for individual traffic |
| CN103636284A (en) * | 2012-06-29 | 2014-03-12 | 华为技术有限公司 | Information processing method, forwarding plane apparatus and control plane apparatus |
| US9769089B2 (en) | 2012-06-29 | 2017-09-19 | Huawei Technologies Co., Ltd. | Method for processing information, forwarding plane device and control plane device |
| CN103636284B (en) * | 2012-06-29 | 2018-06-05 | 华为技术有限公司 | Information processing method, forwarding surface equipment and control plane equipment |
| US10397138B2 (en) | 2012-06-29 | 2019-08-27 | Huawei Technologies Co., Ltd. | Method for processing information, forwarding plane device and control plane device |
| US11115350B2 (en) | 2012-06-29 | 2021-09-07 | Huawei Technologies Co., Ltd. | Method for processing information, forwarding plane device and control plane device |
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