CN100440855C - Priority service method for wireless chain protocol module multi-example data business - Google Patents
Priority service method for wireless chain protocol module multi-example data business Download PDFInfo
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- CN100440855C CN100440855C CNB2004100767293A CN200410076729A CN100440855C CN 100440855 C CN100440855 C CN 100440855C CN B2004100767293 A CNB2004100767293 A CN B2004100767293A CN 200410076729 A CN200410076729 A CN 200410076729A CN 100440855 C CN100440855 C CN 100440855C
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Abstract
The present invention relates to a service quality guarantee technique in a mobile communication system, which discloses a priority service method for a radio link protocol module multi-instance data service so that the mobile communication system can satisfy the requirements of various service instances and provide corresponding QoS guarantee for the service instances. The priority service method for a radio link protocol module multi-instance data service divides data packets of different block data service instances into two big classes of a real time class and a non real time class according to SO of the data packets and sends the real time class data packet in priority; each big class of the data packets is also divided into two small classes of a discardable and a nondiscardable data packets, wherein the nondiscardable data packet after sent is reserved until a confirmation is received; in the processing mode of the discardable packet, the discardable packet after sent is not reserved, and the number of RLP retransmission times is set to a minimal value or no RLP retransmission is realized by service negotiation.
Description
Technical field
The present invention relates to service quality guarantee technology in the mobile communication system, particularly in the mobile communication system radio link protocol sublayer to the service quality guarantee technology of multi-example data business.
Background technology
3G (Third Generation) Moblie (3rd Generation is called for short " 3G ") technology aims to provide near the wireless voice business that line mass is arranged and requires two-forty and jumbo common multimedia and high-speed data applications business.Code division multiple access (Code Division Multiple Access, be called for short " CDMA ") 2000 and wideband CDMA (Wide-band CDMA, be called for short " WCDMA ") and time-division synchronization CDMA (Time Division-Synchronous CDMA is called for short " TD-SCDMA ") become the three big mainstream systems of 3G side by side.Evolve to CDMA2000 from original narrowband CDMA and will pass through CDMA1X, these several transition stages of CDMA 1X EV-DO usually, each stage all promotes on professional ability and performance to some extent than previous stage.The present residing CDMA 1X stage has not only significantly promoted the significantly lifting that the availability of frequency spectrum is brought power system capacity on the basis of the network of backward compatibility IS-95A, and its peak rate up to 624kb/s can provide many broadband multimedia services.
In the CDMA2000 system, the transmission of data service is mainly finished by radio link protocol (Radio LinkProtocol is called for short " RLP ").RLP be a kind of connection-oriented, based on negative response (NegativeAcknowledgment, abbreviation " NAK ") data send agreement, state for the mistake in the process of transmitting, guarantee its service quality " doing one's best ", be convenient to high level and handle.The RLP sublayer is the important interface between upper layer application and the bottom physical connection, be positioned at medium access control (MediaAccess Control, abbreviation " MAC ") on the multiplex sublayer of layer, it mainly acts on is to utilize the forward direction of physical layer and backward channel provides Bit Oriented stream for upper layer application transmission, it does not consider the concrete frame format of upper layer application, and just the requirement according to multiplex sublayer forms rlp frame.The core concept of quality assurance measure is a kind of transmission mechanism of doing one's best in the RLP sublayer, and promptly the RLP sublayer guarantees the correct transmission of data as much as possible according to the agreement predetermined parameter.Adopt automatic re-send request may (the Automatic Repeat Request of NAK during the transfer of data of the RLP sublayer of high-speed packet, abbreviation " ARQ ") agreement guarantees the transmission quality of packet, promptly do not confirm the frame received, only require and retransmit unreceived frame that each Frame specifies one to be that the no character type integer of mould is as sequence number with 4096.
In cdma system in the past, because Packet data service is only supported an example, and has only a service option, therefore do not need to consider issue of priority, do not carry out differentiated treatment in the middle of the realization according to the real-time requirement of business yet.Along with the continuous development of internetworking agreement (Internet Protocol is called for short " IP ") network technology, its practical application is increasingly extensive, becomes the developing direction of future communications technology gradually.Continuous expansion and type of service along with transmission bandwidth becomes increasingly abundant simultaneously, and the user has been not content with and only carries out single business operation on terminal.From the REL of CDMA 1X A version, many examples that system begins to support voice and packet data concurrent service and supports data service have also been supported IP phone (Voice overIP is called for short " VoIP ") simultaneously.Support the many examples of data service to cause business option (Service Option, abbreviation " SO ") type increases, adopt which kind of method to satisfy the ready-made important leverage of various types of business demands for concurrent system service quality (Quality of Service, abbreviation " QoS ").
The existing a solution of problem is exactly according to time sequencing a plurality of concurrent data service requests to be placed in the buffer queue of same RLP hereto, adopts unified method to handle and send successively.
In actual applications, there is following problem in such scheme: can't treat real time business and non-real-time service with a certain discrimination, also can't dispatch according to the priority of business.When a plurality of data services were concurrent, system can't guarantee for each srvice instance provides QoS.
Cause the main cause of this situation to be, do not set up different RLP buffer queues for dissimilar srvice instance requests, can't accomplish to handle earlier the demanding request of real-time, also not for each srvice instance is provided with priority, adopt unified approach to handle in the same formation simultaneously but be placed on.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of priority service method of wireless chain protocol module multi-example data business, and the system that makes can satisfy the demand of all kinds of srvice instance and guarantee for it provides corresponding QoS.
For achieving the above object, the invention provides a kind of priority service method of wireless chain protocol module multi-example data business, comprise following steps:
Set up real-time buffer queue and non real-time buffer queue;
When new business datum requires to send, put it into corresponding formation and be its setting priority according to the value of this business datum corresponding service option;
The priority of using described setting sends all business datums in the described real-time buffer queue according to order from high to low;
The priority of using described setting sends all business datums in the described real-time buffer queue according to order from high to low, the business datum in the described real-time buffer queue respectively correspondence in real time can not discarding traffic, real-time discardable business;
The priority of using described setting sends the business datum in the described non real-time buffer queue according to order from high to low, in the described non real-time buffer queue all business datums respectively corresponding non real-time can not discarding traffic, the discardable business of non real-time;
For described in real time can not discarding traffic and non real-time can not discarding traffic packet, after transmission, keep this packet, up to the affirmation information of receiving from receiving terminal;
Packet for described real-time discardable business and the discardable business of non real-time abandons this packet immediately after transmission,
Or the radio link protocol number of retransmissions of respective queue is arranged to minimum value,
Or realize that by service negotiation radio link protocol does not retransmit.
By relatively finding, technical scheme difference with the prior art of the present invention is, according to the SO of packet the packet of different grouping data service instances is divided in real time and non real-time two big classes, the preferential packet that sends real-time class, each big class also respectively is divided into discardable and not discardable two groups, remain into after not discardable packet sends always and receive till the affirmation, to the processing mode of discardable packet be: do not keep, be provided with the RLP number of retransmissions after the transmission and do not retransmit to minimum value or by service negotiation realization RLP.
Difference on this technical scheme, brought comparatively significantly beneficial effect, promptly realized easily to the shunting of many examples business datum and according to the priority scheduling of business, thereby can satisfy the demand of all kinds of CDMA data services well, guaranteed for system provides QoS.
Description of drawings
Fig. 1 is a radio link protocol multi-example data business classification chart according to an embodiment of the invention;
Fig. 2 is the priority service flow chart of radio link protocol multi-example data business according to an embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 shows the multi-example data business classification chart.
As everyone knows, the data of different types business has different requirements to real-time, the present invention at first is divided into data service the cdma system in real time and non real-time two big classes from the real-time required angle, be subdivided into discardable and not discardable two groups according to reliability requirement again in each big class then, as shown in Figure 1, can be subdivided into following 4 classes altogether:
Not discardable in real time class: such professional real-time requires high, and may cause system works undesired after losing, for example voip signaling;
Real-time discardable class: such professional real-time requires high, but system still can operate as normal, for example VoIP speech data business after the lost part data;
The not discardable class of non real-time: such business is less demanding to real-time, but requires transmission reliability height, for example data service of financial sector;
The discardable class of non real-time: such professional real-time and reliability requirement are not high, for example the data service of advertising message and so on.
Fig. 2 shows the priority service flow chart of radio link protocol multi-example data business.
As shown in Figure 2, in step 101,,, set up real-time buffer queue and non real-time buffer queue at 4 class business shown in Fig. 1 for all kinds of srvice instance are treated with a certain discrimination.Adopt the benefit of many buffer queues technology to be that when a plurality of data service instances were concurrent, system can treat its differentiation.This step only needs to carry out when each system start-up and gets final product.
Then enter step 102, when new business datum requires to send, put it into corresponding formation and set priority for it according to SO.Need to prove, in existing cdma system, the different grouping data service instances identifies by SO, and SO is equivalent to an information unit (InformationElement, be called for short " IE "), be used for identifying uniquely certain class data service with specific real-time and reliability requirement.For example the SO of general data business is 33, and the signaling of VOIP and data SO are respectively 60,61, and following business development may be used new SO.After business datum was put into corresponding buffer queue, system can also be as required for each SO sets priority, as the foundation of later system call.Generally speaking, SO priority is set the strong and weak degree that real-time requires according to business, and for example SO is 33 business option, because its carrying general data business, therefore its priority setting can be lower than carrying VoIP signaling SO and be 60 business option.
Then enter step 103, the RLP module is when sending data, at first real-time buffer queue is handled, if there are a plurality of sending service data for the treatment of in the real-time queue simultaneously, the priority that can use previous setting sends all data in this formation according to order from high to low.What deserves to be mentioned is, in the buffer queue for discardable class and not the processing mode of discardable class very big difference is arranged: after not discardable class business need data send and finish, data are remained into the wait acknowledge window up to receiving the affirmation of receiving terminal to these data, do not receive affirmation yet then retransmit these data and reset timer if default waiting timer is overtime, repeat this operation until arriving default maximum retransmission, if do not receive affirmation yet, then these data send failure; Discardable class business can adopt following several processing method to reduce or to exempt the re-transmission to the not high data of these reliability requirements as far as possible: can not be retained in the wait acknowledge window after business datum sends, do not need wait acknowledge; Maybe can set the RLP number of retransmissions to minimum value; Can also realize that RLP does not retransmit by service negotiation.
Then enter step 104, the RLP module continues to handle the business datum in the non real-time buffer queue.Its method is with step 103.
In sum, the present invention passes through the real-time of SO differentiated service, and adopts many buffer queues technology, according to all kinds of business of processed, to guarantee the QoS of all kinds of business.
Need to prove, can adopt the multi-process working method in the actual implementation procedure, whether the continuous scanning of process has new data sending request, if any then handling according to the described method of step 102; Another one process then circulate execution in step 103 and step 104.During if will log off, need two buffer queues setting up in the release steps 101.
Though by reference some preferred embodiment of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that, can do various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (1)
1. the priority service method of a wireless chain protocol module multi-example data business is characterized in that, comprises following steps:
Set up real-time buffer queue and non real-time buffer queue;
When new business datum requires to send, put it into corresponding formation and be its setting priority according to the value of this business datum corresponding service option;
The priority of using described setting sends all business datums in the described real-time buffer queue according to order from high to low, the business datum in the described real-time buffer queue respectively correspondence in real time can not discarding traffic, real-time discardable business;
The priority of using described setting sends all business datums in the described non real-time buffer queue according to order from high to low, the business datum in the described non real-time buffer queue respectively corresponding non real-time can not discarding traffic, the discardable business of non real-time;
For described in real time can not discarding traffic and non real-time can not discarding traffic packet, after transmission, keep this packet, up to the affirmation information of receiving from receiving terminal;
Packet for described real-time discardable business and the discardable business of non real-time abandons this packet immediately after transmission,
Or the radio link protocol number of retransmissions of respective queue is arranged to minimum value,
Or realize that by service negotiation radio link protocol does not retransmit.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100767293A CN100440855C (en) | 2004-08-29 | 2004-08-29 | Priority service method for wireless chain protocol module multi-example data business |
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| CNB2004100767293A CN100440855C (en) | 2004-08-29 | 2004-08-29 | Priority service method for wireless chain protocol module multi-example data business |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101079811B (en) * | 2007-04-28 | 2011-03-30 | 北京航空航天大学 | Data transmission method and system of airplane and ground system |
| CN101860471B (en) * | 2009-04-10 | 2013-01-30 | 华为技术有限公司 | Method, device and system for switching media stream |
| CN101668314B (en) * | 2009-09-01 | 2012-12-19 | 中兴通讯股份有限公司 | Data transmission method for wireless distribution system and device thereof |
| CN102395201A (en) * | 2011-06-30 | 2012-03-28 | 中兴通讯股份有限公司 | Paging retransmitting methods and access network equipment |
| CN107959639A (en) * | 2016-10-18 | 2018-04-24 | 中兴通讯股份有限公司 | A kind of method and device for business processing |
| CN108200134B (en) * | 2017-12-25 | 2021-08-10 | 腾讯科技（深圳）有限公司 | Request message management method and device, and storage medium |
| CN108111259A (en) * | 2017-12-28 | 2018-06-01 | 北京航天晨信科技有限责任公司 | One kind is used for narrow band data method for reliable transmission |
| CN115242891A (en) * | 2021-04-23 | 2022-10-25 | 花瓣云科技有限公司 | Data transmission method, system and related device |
| CN115314445B (en) * | 2022-08-26 | 2023-12-12 | 网易（杭州）网络有限公司 | Data message transmission method and device, storage medium and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312996A (en) * | 1998-06-12 | 2001-09-12 | 艾利森电话股份有限公司 | Admission control method and switching node for integrated services packet-switched networks |
| CN1433623A (en) * | 1999-11-30 | 2003-07-30 | 艾利森电话股份有限公司 | Method and apparatus for packet delay reduction using scheduling and header compression |
| WO2003071740A1 (en) * | 2002-02-22 | 2003-08-28 | Linkair Communications, Inc. | A method of priority control in wireless packet data communications |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312996A (en) * | 1998-06-12 | 2001-09-12 | 艾利森电话股份有限公司 | Admission control method and switching node for integrated services packet-switched networks |
| CN1433623A (en) * | 1999-11-30 | 2003-07-30 | 艾利森电话股份有限公司 | Method and apparatus for packet delay reduction using scheduling and header compression |
| WO2003071740A1 (en) * | 2002-02-22 | 2003-08-28 | Linkair Communications, Inc. | A method of priority control in wireless packet data communications |
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