CN103428110B - The receiving handling method and device of Realtime Transport Protocol data bag - Google Patents
The receiving handling method and device of Realtime Transport Protocol data bag Download PDFInfo
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Abstract
The invention provides a kind of receiving handling method and device of Realtime Transport Protocol data bag, wherein, the above method includes：Packet switch PS business datums in the Realtime Transport Protocol data bag received are grouped by the block number of the PS business datums, wherein, the block number of the PS business datums in same group is identical；For each PS business datums in same group, the PS business datums are inserted into the queue for carrying the PS business datums, wherein, the position that each PS business datum in same group is inserted into each queue is identical.The above-mentioned technical proposal provided using the present invention, solve in correlation technique, due to reducing the technical problems such as PS business efficiencies of transmission caused by block re-selection procedure, so that avoiding PS business datums occurs block reuse adoption process, and then the data transmission efficiency of PS business is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of receiving handling method of Realtime Transport Protocol data bag
And device.
Background technology
With continuing to develop for computer technology and network technology, a new generation is existed using the base station system of full IP frameworks
It is widely used in practice, base station system of new generation employs IP access ways, and has used new host-host protocol
For the transmission of speech data, RTP (Real-Time Transport Protocol, referred to as RTP) is exactly it
In one kind.RTP provides transfer function end to end for real time data, such as the audio-visual data of interaction, and function includes load
Type discrimination, serial number codes, time stamp, transmitting, monitoring.RTP is operated in User Data Protocol (User Date Protocol, letter
Referred to as UDP) on, using UDP multiplexings and the common completion transport layer functionality of bag verifying function cooperation, in the communication system of a new generation
In, Real-time Transport Protocol is generally used for the transmission of voice-and-data business.
By current RTP data receiver processing modes, generally using the layout strategy of L2 cache to RTP messages at
Reason and submission, as shown in figure 1, receiving after RTP messages, RTP messages will could complete operation, first-level buffer by two queues
For ordering buffer, function is to be ranked up operation to the RTP messages of out of order arrival, it is ensured that the order that data are reached, and two grades are delayed
Rush area to buffer for anti-jitter, function is to ensure the submission upper strata that data can continuously, stable in the case of uneven arrival
Processing, it is to avoid empty bag phenomenon.And in GSM base station systems, 8 full speed can be supported in each physical carrier simultaneously in theory
Rate user converses simultaneously.Therefore in the multi-user case, one-level ordering buffer, two grades of anti-jitter buffering queues are generally by industry of eating dishes without rice or wine
Business number of timeslots is designed as multiple, and each queue corresponds to a Um interface timeslot, so that different users are supported, such as Fig. 2 institutes
Show.This method is not in problem in the speech business of user, but due in gsm system, there is multiple business, PS numbers
It is also that a kind of main business is transmitted, it is necessary to be encapsulated in RTP packets according to business, it is many that the business allows unique user to use
Individual slot transmission business datum.Therefore in gsm system, base station system for simultaneously process circuit exchange (Circuit Switch,
Referred to as CS) business and packet switch (Packet Switch, referred to as PS) business, the process part of RTP messages generally uses
Two methods are handled.1.CS business and PS business processing flows are distinguished, and two kinds of business processings are separately handled, independent.
2.CS business and PS operation flows are combined, and are still handled by the design in Fig. 2.Method 1 is handled simply, but support user compared with
A large amount of wastes of memory source can be caused in many base station systems, memory source is relatively nervous in embedded systems, serious feelings
Base station low memory, operation exception may be caused under condition.The processing of method 2 is equally existed and asked due to the feature of PS business datums
Topic.As shown in figure 3, at a time, two PS users (user 1 and user 2), 1 CS user (user 3) is while enter industry
Business, user is when PS business is carried out, and to improve the transmission rate of data, gsm system allows the business number of the user data
It is transmitted according in other untapped time slots, the PS data of user 1 are transmitted using time slot 1,3,4, therefore are used
Queue 1, queue 3, queue 4, and the PS business that user 2 is carried out has used time slot 2 and time slot 3 to transmit, and uses queue 2, queue
3, the CS data of user 3 use time slot 5, using queue 5, and next data are submitted the moment, and team's head data of queue 1,2,3,4,5 are equal
Upper strata can be submitted to handle, due to including identical block information in the PS business datums of usual same RTP bags, if same block number
Data can not disposably submit, subsequent treatment module will likely think this block partial loss, possible triggering block gravity treatment stream
Journey, reduces PS service transmission rates, largely effects on the practical application effect of PS business.
For the above mentioned problem in correlation technique, effective solution is not yet proposed at present.
The content of the invention
For in correlation technique, due to reducing the technical problems such as PS business efficiencies of transmission caused by block re-selection procedure, this
Invention provides a kind of receiving handling method and device of Realtime Transport Protocol data bag, at least to solve above-mentioned technical problem.
According to an aspect of the invention, there is provided a kind of receiving handling method of Realtime Transport Protocol data bag, including：
By block number of the packet switch PS business datums in the RTP received (RTP) packet by the PS business datums
It is grouped, wherein, the block number of the PS business datums in same group is identical；, will for each PS business datums in same group
The PS business datums are inserted into the queue for carrying the PS business datums, wherein, each PS business datum in same group is inserted
The position entered into each queue is identical.
PS business datums are inserted into the queue for carrying the PS business datums, including：Obtain the length of each queue
Maximum in angle value；Each PS business datum is inserted respectively into each queue position corresponding with the above-mentioned maximum of acquisition
Put.
Each PS business datum is inserted respectively into each queue after position corresponding with the maximum of acquisition,
Also include：The length value of each queue is updated, and is inserted into as the PS business datums in other groups the phase of respective queue
Answer the foundation of position.
By the packet switch PS business datums in the Realtime Transport Protocol data bag received by the PS business datums
Before block number is grouped, in addition to：Receive circuit switching (CS) business datum and PS business datums in RTP data；It will connect
The CS business datums and PS business datums received is handled while being sent to same anti-jitter buffering area.
The above method also includes：For CS business datums, it is inserted into according to the gap information of CS business datums with carrying CS
On relevant position in the queue of business datum.
Anti-jitter buffering area is reported to successively by group to the PS business datums in different groups.
According to another aspect of the present invention there is provided a kind of receiving and processing device of Realtime Transport Protocol data bag, bag
Include：
Grouping module, for the packet switch PS business datums in the realtime transmission protocol RTP packet that will receive by
The block number of the PS business datums is grouped, wherein, the block number of the PS business datums in same group is identical；Module is inserted, is used
Each PS business datums in by same group are inserted into the queue for carrying the PS business datums, wherein, it is each in same group
The position that individual PS business datums are inserted into each queue is identical.
Above-mentioned insertion module includes：Acquiring unit, the maximum of the length for obtaining each queue；Insertion is single
Member, for each PS business datum to be inserted respectively into each queue into position corresponding with the above-mentioned maximum of acquisition.
The above method also includes：Update module, the length value for updating each queue, and as in other groups
PS business datums are inserted into the foundation of the relevant position of respective queue.
Said apparatus also includes：Receiving module, for receiving circuit switching (CS) business datum and the PS in RTP data
Business datum；Delivery module, for the CS received business datums and the PS business datums to be trembled while being sent to same primary antibody
Dynamic buffering area is handled.
By the present invention, it is grouped and by the identical PS business number of block number using by the PS business datums in RTP packets
According to assigning to same group, the same position being then inserted into the data in same packet in the queue for carrying the PS business datums
Technological means, is solved in correlation technique, due to reducing the technical problems such as PS business efficiencies of transmission caused by block re-selection procedure,
Occur block reuse adoption process so as to avoid PS business datums, and then improve the data transmission efficiency of PS business.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the RTP flow chart of data processing schematic diagrames according to correlation technique；
Fig. 2 is a kind of RTP flow chart of data processing schematic diagram in the case of the multi-user according to correlation technique；
Fig. 3 is the CS business and PS mix of traffic handling process schematic diagrames according to correlation technique；
Fig. 4 is the flow chart of the receiving handling method of the Realtime Transport Protocol data bag according to the embodiment of the present invention；
Fig. 5 is the structured flowchart of the receiving and processing device of the Realtime Transport Protocol data bag according to the embodiment of the present invention；
Fig. 6 is the structural representation of the receiving and processing device of the Realtime Transport Protocol data bag according to the preferred embodiment of the present invention
Figure；
Fig. 7 is the structure of the receiving and processing device of another Realtime Transport Protocol data bag according to the preferred embodiment of the present invention
Schematic diagram；
Fig. 8 is the flow chart of the receiving handling method of the Realtime Transport Protocol data bag according to the embodiment of the present invention 1；
Fig. 9 is schematic diagram when entering enqueue according to the PS user 1 of the embodiment of the present invention 1；
Figure 10 is schematic diagram when entering enqueue according to the PS user 2 of the embodiment of the present invention 1.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Fig. 4 is the flow chart of the receiving handling method of the Realtime Transport Protocol data bag according to the embodiment of the present invention.Such as Fig. 4
Shown, this method includes：
Step S402, by block number of the packet switch PS business datums in the RTP packets received by PS business datums
It is grouped, wherein, the block number of the PS business datums in same group is identical；
Step S404, for each PS business datum in same group, PS business datums is inserted into and carry the PS business
In the queue of data, wherein, the position that each PS business datum in same group is inserted into each queue is identical.
By above-mentioned processing procedure, due to the PS business datums in RTP packets being grouped and by the identical PS of block number
Business datum assigns to same group, is then inserted into the data in same packet identical in the queue for carrying the PS business datums
Position, it may therefore be assured that being once filed concurrently to block identical data, it is to avoid block gravity treatment occurs for PS business datums
Journey.
Realize that the position identical mode that each PS business datum in same group is inserted into each queue has a variety of, example
Such as can be according to the insertion rule pre-set, it is ensured that the data of same number are inserted into the same position of associated queue.At this
In one preferred embodiment of invention, it can realize in the following ways：Obtain in the length value of each above-mentioned queue most
Big value；Each PS business datum is inserted respectively into each queue position corresponding with the above-mentioned maximum of acquisition.
Now, related team can be also inserted in the manner described above for the ease of being subsequently not inserted into other groups of data of queue
Row, after each PS business datum is inserted respectively into each queue position corresponding with the maximum of acquisition, may be used also
With including following processing procedure：The length value of each above-mentioned queue is updated, and is inserted as the PS business datums in other groups
Enter the foundation to the relevant position of respective queue.
In order to save system resource overhead, the packet switch PS business in the Realtime Transport Protocol data bag that will be received
Before data are grouped by the block number of PS business datums, following processing procedure can also be included：Receive realtime transmission protocol RTP
Circuit switching (CS) business datum and the PS business datums in data；By the CS business datums received and the PS industry
Business data are sent to same anti-jitter buffering area and handled simultaneously, by above-mentioned processing procedure, taken into account CS business datums and
The parallel processing of the PS business datums, and then save overhead.
For above-mentioned CS business datums, it is necessary to be inserted into according to the gap information of above-mentioned CS business datums with carrying CS business
On relevant position in the queue of data.
For the PS business datums in different groups, it is necessary to be committed to anti-jitter buffering area successively by group.
Above-mentioned processing procedure, so that Abis mouthfuls receive RTP messages as an example, can show as in the specific implementation：The present embodiment
A kind of Abis mouthfuls CS and PS business based on RTP messages is provided to receive and handle parallel and at the place of two grades of anti-jitter buffering areas
The method optimized in reason to the RTP Message processings of PS business：The present embodiment has taken into account the treated of CS business and PS business
Journey, saves system resource overhead, and processing avoids upper system because block number is according to infull triggering block gravity treatment stream in PS business
Journey, so as to improve the transmission rate of PS business.During insertion stabilization buffering tail of the queue, it is ensured that the PS business of same block number
In same position when data are inserted in each buffering area, so that it is guaranteed that same number is once submitted.
After CS, PS business datum of arrival are decomposed, the gap information shared by record traffic data, PS business is re-recorded
Block information；
For CS business datums, respective queue tail of the queue is directly inserted according to gap information, control of queue information is updated, again
Associated queue's length is calculated, flow terminates；
For PS business datums, then the data of same block number are selected, it is related to calculate this according to shared gap information
The length of buffering queue most long in stabilization buffering area；By this data by upper step result of calculation (most long buffering queue length)
Individual queue is inserted in position respectively；Individual queue buffer control is updated, associated queue's length is recalculated.
A kind of receiving and processing device of Realtime Transport Protocol data bag is additionally provided in the present embodiment, and the device is used for real
Existing above-described embodiment and preferred embodiment, had carried out repeating no more for explanation, below to being related to module in the device
Illustrate.As used below, term " module " can realize the combination of the software and/or hardware of predetermined function.Although
Device described by following examples is preferably realized with software, but hardware, or the combination of software and hardware realization
It is also that may and be contemplated.Fig. 5 is the receiving and processing device of the Realtime Transport Protocol data bag according to the embodiment of the present invention
Structured flowchart.As shown in figure 5, the device includes
Grouping module 50, is connected to insertion module 52, for point in the realtime transmission protocol RTP packet that will receive
Group exchanges PS business datums and is grouped by the block number of PS business datums, wherein, the block phase of the PS business datums in same group
Together；
Module 52 is inserted, the queue of the PS business datums is carried for each PS business datums in same group to be inserted into
In, wherein, the position that each PS business datum in same group is inserted into each queue is identical.
The function of being realized by above-mentioned processing module, due to the PS business datums in RTP packets being grouped simultaneously
The identical PS business datums of block number are assigned to same group, then the data in same packet are inserted into and carry the PS business datums
Same position in queue, it may therefore be assured that being once filed concurrently to block identical data, it is to avoid PS business datums are sent out
Raw block reuse adoption process
In a preferred embodiment of the present invention, as shown in fig. 6, above-mentioned insertion module 52 includes：Acquiring unit
520, it is connected to insertion unit 522, the maximum in length value for obtaining each queue；Unit 522 is inserted, is used for
Each PS business datum is inserted respectively into each queue position corresponding with the maximum of acquisition.
Associated queue can be also inserted in the manner described above for the ease of other groups of data being subsequently not inserted into queue, it is above-mentioned
Device also needs to set with lower module：Update module, the length value for updating each queue, and as in other groups
PS business datums are inserted into the foundation of the relevant position of respective queue.
As shown in fig. 7, in order to save system resource overhead, said apparatus is also needed to by the RTP received
Packet switch PS business datums in packet be grouped by the block number of PS business datums before to PS business datums and CS industry
Business data are handled simultaneously, can also specifically include following processing module：Receiving module 70, is connected to delivery module 72, uses
CS business datums and PS business datums in reception RTP data；Delivery module 72, for the CS business datums that will receive and
PS business datums are sent to same anti-jitter buffering area and handled simultaneously.
In order to more fully understand above-described embodiment, illustrated below in conjunction with specific embodiment and relevant drawings.
Embodiment 1
The main design idea of the present embodiment is that there is provided a kind of Abis mouthfuls CS and PS business based on RTP messages is parallel
The method for receiving and handling, makes a distinction according to user's difference in two grades of stabilizations bufferings, CS and PS industry can be supported simultaneously
The processing of business.In the processing procedure of two grades of stabilization buffering queues, to conventional CS business datums, handled by normal flow,
And for the PS business datums of same block number, then need to carry out alignment of data operation in stabilization buffering area, same block number
Data are committed to upper strata in batches, so as to improve the transmission rate of PS business datums.The present embodiment is with the processing of Abis mouthfuls of RTP messages
Illustrated exemplified by method, Abis mouthfuls be defined as base station sub-system two functional entity BSC (base station controller) and BTS (bases
Stand transceiver station) between communication interface.
Below mainly in combination with the testing procedure described in accompanying drawing 8, the invention is elaborated further with instantiation.
After the ranked queue of CS and PS business datums, obtained orderly RTP messages enter to be located in stabilization buffering area
Reason, process step is as follows：
Step S802, before stabilization buffering is entered, extracts the business time-slot information shared by RTP messages (if CS
Business datum, generally takes up 1 business time-slot, and PS business datums may then take multiple business time-slots)；
Step S804, different queues are mapped to according to the occupancy situation of business time-slot, i.e., clearly the bag data will be entered
Enter which queue is handled.If for example, the bag data is the user data on time slot 2, mapping to queue 2 and handling,
If containing the user data of multiple time slots in the bag data, such as time slot 2,3,4, then user data is split into accordingly
Several parts, so as to its enter enqueue 2,3,4 handle；
Step S806, is that PS business or CS business are identified to message, that is, determines whether PS business datums, if
It is CS business datums, then goes to step S808；If PS business datums, then enter step S810 and carry out corresponding operating；
Step S808, this bag data is fallen in lines.Buffering area mode of operation i.e. routinely, inserting respective queue tail of the queue is
Can, into step S816；
Step S810, reads business datum block information, sequentially submission is handled the user data of same block number；
Step S812, calculates the maximum L of associated queue's length；
By taking Fig. 9 as an example, the data of the same block number of PS user 1 enter after stabilization buffering, according to the gap information of its occupancy, point
Do not enter enqueue 1,3,4, now the data of PS user 2 arrive, the data take time slot 2 and 3, and queue 2 and 3 will be inserted after mapping
Processing, now needs to calculate associated queue of this data i.e. involved by user 2, queue 2 and queue 3, the length of now queue 2 is
0, the length of queue 3 is 1, and associated queue length maximum L is 1；
Step S814, individual queue is inserted by this bag data respectively by the position of the maximum of associated queue's length；
PS business datums, by taking Figure 10 as an example, now the maximum of associated queue's length is 1, when carrying out insertion operation, is used
When the data of family 2 enter enqueue 2 and 3, if queue 2,3 is discontented, the position in queue 2 and queue 3 is by associated queue's length
Maximum is inserted, it is ensured that the uniformity that data are submitted；If any associated queue expires, this message content is abandoned.
CS business datums, then be inserted directly into associated queue's tail of the queue.
Step S816, updates associated queue data with existing maximum length L；
Because queue 2 and queue 3 increase data newly, the data with existing length of the queue is updated, user data 2 is inserted
Before, the length of queue 2 is 0, and the queue length of queue 3 is 1, after the completion of the processing of user data 2, and the length of queue 2 is 1, queue 3
Queue length be 2, renewal terminates.After the data in queue complete to submit operation, the queue length of meeting again to individual queue
It is updated.
A kind of method for receiving and handling parallel there is provided Abis mouthfuls of RTP packet PS and CS business by above-mentioned steps, can
To support the processing of CS and PS business simultaneously, the purpose for the transmission rate for improving PS business datums is reached.
In summary, above-described embodiment provides a kind of Abis mouthfuls of CS and PS business based on RTP messages and receives and locate parallel
The method of reason, not only reduces the occupancy to Installed System Memory, and for Abis mouthfuls of business processing feature and PS business datums
Feature, made a distinction in two grades of stabilizations buffering according to the difference of business datum, realize the place of confrontation jitter-buffer
Reason process is optimized, and both ensure that the timely submission of CS business, turn avoid PS business datums and occurs block reuse adoption process, carries
The high efficiency of transmission of PS business.
In another embodiment, a kind of software is additionally provided, the software is used to perform above-described embodiment and preferred real
Apply the technical scheme described in mode.
In another embodiment, a kind of storage medium is additionally provided, be stored with above-mentioned software in the storage medium, should
Storage medium includes but is not limited to：CD, floppy disk, hard disk, scratch pad memory etc..
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing system realize that they can be concentrated in single computing system, or be distributed in multiple computing systems and constituted
Network on, alternatively, the program code that they can be can perform with computing system be realized, it is thus possible to they are stored
Performed within the storage system by computing system, and in some cases, can be shown to be performed different from order herein
The step of going out or describe, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of receiving handling method of Realtime Transport Protocol data bag, it is characterised in that including：
By block of the packet switch PS business datums in the realtime transmission protocol RTP packet received by the PS business datums
Number it is grouped, wherein, the block number of the PS business datums in same group is identical；
For each PS business datums in same group, the PS business datums are inserted into the queue for carrying the PS business datums
In, wherein, the position that each PS business datum in same group is inserted into each queue is identical.
2. according to the method described in claim 1, it is characterised in that the PS business datums are inserted into and carry the PS business numbers
According to queue in, including：
Obtain the maximum in the length value of each queue；
Each described PS business datum is inserted respectively into each queue position corresponding with the maximum of acquisition.
3. method according to claim 2, it is characterised in that each described PS business datum is inserted respectively into each team
In row after position corresponding with the maximum of acquisition, in addition to：
The length value of each queue is updated, and is inserted as the PS business datums being not inserted into other groups of queue
To the foundation of the relevant position of respective queue.
4. according to the method described in claim 1, it is characterised in that by the packet in the Realtime Transport Protocol data bag received
Before exchange PS business datums are grouped by the block number of the PS business datums, in addition to：
Receive the circuit switching (CS) business datum and the PS business datums in the RTP data；
By the CS business datums received and the PS business datums while being sent at same anti-jitter buffering area
Reason.
5. method according to claim 4, it is characterised in that also include：
For CS business datums, the team with carrying the CS business datums is inserted into according to the gap information of the CS business datums
On relevant position in row.
6. the method according to any one of claim 1 to 5, it is characterised in that also include：To the PS business numbers in different groups
Anti-jitter buffering area is reported to successively according to by group.
7. a kind of receiving and processing device of Realtime Transport Protocol data bag, it is characterised in that including：
Grouping module, for the packet switch PS business datums in the realtime transmission protocol RTP packet that will receive by described
The block number of PS business datums is grouped, wherein, the block number of the PS business datums in same group is identical；
Module is inserted, for each PS business datums in same group being inserted into the queue for carrying the PS business datums, its
In, the position that each PS business datum in same group is inserted into each queue is identical.
8. device according to claim 7, it is characterised in that the insertion module includes
Acquiring unit, the maximum of the length for obtaining each queue；
Unit is inserted, for the maximum pair each described PS business datum being inserted respectively into each queue with acquisition
The position answered.
9. device according to claim 8, it is characterised in that also include：
Update module, the length value for updating each queue, and as being not inserted into other groups of queue
PS business datums are inserted into the foundation of the relevant position of respective queue.
10. device according to claim 7, it is characterised in that also include：
Receiving module, for receiving circuit switching (CS) business datum and the PS business datums in the RTP data；
Delivery module, for by the CS business datums received and the PS business datums while being sent to same anti-jitter
Buffering area is handled.
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| US9225659B2 (en) * | 2010-03-22 | 2015-12-29 | Riverbed Technology, Inc. | Method and apparatus for scheduling a heterogeneous communication flow |
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