CN103582149B - The resource regulating method of VOLTE and device - Google Patents
The resource regulating method of VOLTE and device Download PDFInfo
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- CN103582149B CN103582149B CN201310566880.4A CN201310566880A CN103582149B CN 103582149 B CN103582149 B CN 103582149B CN 201310566880 A CN201310566880 A CN 201310566880A CN 103582149 B CN103582149 B CN 103582149B
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Abstract
The invention discloses resource regulating method and the device of a kind of VOLTE, relate to the communications field, be mainly used in solving in prior art carrying out, according only to current channel status, the PRB wasting of resources that PRB scheduling of resource causes and part of speech communication quality does not reaches the problems such as requirement and designs.The resource regulating method of VOLTE of the present invention includes: step S1: determine the coded format of voice packet according to the RTP bag corresponding to voice packet;Step S2: predict the data volume of voice packet to be sent according to described coded format and send interval；Step S3: according to voice packet to be sent described in described data volume and transmission interval scheduling PRB resource transmission.The present invention has the advantages such as PRB resource is distributed rationally, VOTLE communication quality meets various communicating requirement, realization is easy.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to the resource regulating method of a kind of VOLTE
And device.
Background technology
VOLTE(Voice Over LTE, speech business based on LTE) it is based on PS
The packet switching service of (Package Switch) data field, relative to traditional based on CS
The speech business of (Circuit Switch) circuit hosting domain, improves user experience, as logical
Letter quality is high, and the call proceeding time is short, and can bring abundant with the Seamless integration-of RCS
Business.
During the scheduling of resource of existing VOLTE, as user UE (User Equipment)
When initiating VOLTE business, base station many employings semi-continuous scheduling transmits based on VOLTE shape
The voice packet become.
In semi-continuous scheduling, base station is according to the scheduling using following steps to continue resource；
Step 1: according to RRC(Radio Resource Control): radio resource control
Signal deployment PRB resource (Physical Resource Block Physical Resource Block)；
Step 2: activate PRB resource (Physical Resource Block thing by PDCC
Reason Resource Block)；
Step 3: determine the coded modulation of required transmission voice packet according to channel condition at that time
Mode；
Step 4: after determining code modulation mode, the data volume of required transmission determines that
, and then determine PRB resource (Physical Resource Block physics according to data volume
Resource Block)；Hereafter it is that a cycle same user takies same PRB resource always with 20ms,
Until continuous speech terminates.
Understanding from above-mentioned prior art, base station, carrying out scheduling of resource when, only accounts for
Channel condition at that time, and do not consider the current quality of the VOLTE business of different coding form
Requirement, thus the quality requirement of different business can not be met, and then cause PRB resource
The optimization of distribution is inadequate.
Summary of the invention
(1) present invention solves the technical problem that
Optimize the scheduling strategy of PRB, to adapt to the VoLTE service needed that different Q os requires..
(2) technical scheme
For solving above-mentioned technical problem, the present invention provides the resource regulating method of a kind of VOLTE,
Including:
Step S1: determine the coded format of voice packet according to the RTP bag corresponding to voice packet;
Step S2: predict data volume and the transmission of voice packet to be sent according to described coded format
Interval；
Step S3: according to pending described in described data volume and transmission interval scheduling PRB resource transmission
The voice packet sent.
Preferably, described step S1 is specially and determines voice packet according to the size of described RTP bag
Coded format.
Preferably, described step S1 is specially according to the size of described RTP bag, RTP bag
The PT territory of timestamp and RTP bag determines the coded format of voice packet.
Preferably, the method also includes:
Step S4: obtain the speed bit stream of RTP bag, and judge the code stream speed of described RTP bag
Whether degree changes, if it occur that change then returns step S1, without changing
Then return step S3.
Preferably, described step S3 specifically includes:
Data volume according to voice packet to be sent dispatches the size of described PRB resource；
The interval data sending interval scheduling PRB resource according to described voice packet to be sent.
Preferably, described method also includes:
S3 ＇. time delay and/or number of retransmissions according to voice packet adjust scheduled PRB resource
Size.
The present invention also provides for the resource scheduling device of a kind of VOLTE, comprising:
Coded format determines unit, in order to determine voice packet according to the RTP bag corresponding to voice packet
Coded format;
Predicting unit, in order to the data volume of the voice packet to be sent according to the prediction of described coded format
And send interval；
Scheduling unit, in order to according to described data volume and transmission interval scheduling PRB resource transmission institute
State voice packet to be sent.
Preferably, described coded format determines that unit is specially the size according to described RTP bag
Determine the coded format of voice packet.
Preferably, described coded format determine unit be specially according to the size of described RTP bag,
The timestamp of RTP bag and the PT territory of RTP bag determine the coded format of voice packet.
Preferably, the method also includes:
Speed bit stream acquiring unit, in order to obtain the speed bit stream of RTP bag, and judges described
Whether the speed bit stream of RTP bag changes, and triggers PRB resource when changing
Reschedule.
Preferably, described scheduling unit specifically includes: the first scheduling sublayer unit, in order to according to treating
The data volume of the voice packet sent dispatches the size of described PRB resource；Second scheduling sublayer unit,
Space-number for the PRB resource sending interval scheduling according to described voice packet to be sent
According to.
Preferably, described device also includes adjustment unit, for according to the time delay of voice packet and/
Or number of retransmissions adjusts the size of scheduled PRB resource.
(3) beneficial effects of the present invention
The resource regulating method of VOLTE of the present invention and device, by determining band according to coded format
Send the data volume of voice packet and send interval, it is possible to scheduling PRB resource intelligently, both ensureing
Communication quality, optimizes the distribution of resource simultaneously.
Accompanying drawing explanation
Fig. 1 is the flow process signal of the resource regulating method of the VOLTE described in the embodiment of the present invention one
One of figure；
Fig. 2 is the flow process signal of the resource regulating method of the VOLTE described in the embodiment of the present invention two
The two of figure；
Fig. 3 is the structural representation of the resource scheduling device of the VOLTE described in the embodiment of the present invention four
One of figure；
Fig. 4 is the structural representation of the resource scheduling device of the VOLTE described in the embodiment of the present invention five
One of figure.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the present invention is described further.
Embodiment one:
As it is shown in figure 1, the resource regulating method of the present embodiment VOLTE, including:
Step S1: determine the coded format of voice packet according to the RTP bag corresponding to voice packet;
Step S2: predict data volume and the transmission of voice packet to be sent according to described coded format
Interval；
Step S3: according to pending described in described data volume and transmission interval scheduling PRB resource transmission
The voice packet sent.
Described RTP(Real-time Transport Protocol RTP) it is one
Internet protocol standard, describes the mode of program management multi-medium data real-time Transmission.
The composition of RTP includes sequence number, net load mark, PT territory and timestamp etc..Wherein
Described sequence number is used for detecting the bag of loss.Described net load mark is used for describing the volume of media
Code.Described PT territory is PT Payload Type, generally accounts for 7, is used for illustrating have in RTP message
The type of effect load is concrete such as GSM audio frequency, JPEM image etc..Described timestamp generally accounts for
With in RTP bag 32, time stamp reflects the sampling instant of first eight hyte of this RTP message.
Thus the timestamp between adjacent two bags of correspondence i.e. may know that transmission interval.
In concrete transmitting procedure, in described RTP bag also includes frame instruction, source mark, media
The identification informations such as portion's synchronization.The beginning of the described each frame of frame cue mark and end；Described source is marked
Know the source being used for identifying frame；Described media internal synchronization uses timestamp to detect in a code stream
Different delay variations, and shake is compensated.
So the coded format of voice packet can be determined in the present embodiment by described RTP bag；
Different coded format is corresponding different transmission time intervals and compression speed；When compression speed
When rate is higher, the redundant data in voice packet is more, thus the loss of a packet will cause
Effective information is lost less, thus needs accordingly to be reached by measures such as reduction number of retransmissions
To the Optimized Operation of PRB resource, the most contrary when data compression speed is little.The number of times retransmitted is high,
Then corresponding required PRB resource is the most, based on above-mentioned principle, therefore described in the present embodiment
VOLTE resource regulating method in, change traditional when dispatching PRB resource, only root
It is believed that the information distributing the part of speech packet loss that PRB resource causes is big or shared
The big problem of resource.The present invention is according to QoS requirement, and determines according to coded format
The data volume of the transmission of voice packet and transmission interval, dispatch PRB resource, so that demand
And more mate between scheduling of resource, thus reach the advantage optimizing scheduling of resource.
In wherein said step S1, determine the volume of voice packet according to the RTP bag corresponding to voice packet
Code form at least includes following two method:
Method one:
Size according to described RTP bag determines the coded format of voice packet.
Method two:
The PT territory of size, the timestamp of RTP bag and RTP bag according to described RTP bag
Determine the coded format of voice packet.
The size of described RTP bag can be used to primarily determine that the coded format of voice packet；Described
The timestamp of RTP bag may be used to determine the transmission interval of voice packet, particularly according to two
Adjacent R TP bag timestamp determines；Described PT territory describes medium type.Method one confirms
Convenient, speed is faster；And method two is according to size, timestamp and the PT of RTP bag
In the parameter of the voice packet jointly determined to determine type of coding, accuracy rate is higher.Concrete
In actual application, can select as required.
Summary, the resource regulating method of the VOLTE described in the present embodiment and device,
When carrying out PRB scheduling of resource, the coded format according to voice packet is carried out, high for compression ratio
The corresponding overabsorption of voice packet of coded format some for retransmit PRB resource, be directed to
The voice packet of the coded format that compression ratio is low distributes some PRB moneys for retransmitting less
Source, thus not only achieve the Optimized Operation of PRB resource, ensure that having of voice packet simultaneously
Effect transmission, it is ensured that higher communication quality.
Embodiment two:
As in figure 2 it is shown, the resource regulating method of the present embodiment VOLTE, including:
Step S1: determine the coded format of voice packet according to the RTP bag corresponding to voice packet;
Step S2: predict data volume and the transmission of voice packet to be sent according to described coded format
Interval；
Step S3: according to pending described in described data volume and transmission interval scheduling PRB resource transmission
The voice packet sent.
Step S4: obtain the speed bit stream of RTP bag, and judge the code stream speed of described RTP bag
Whether degree changes, if it occur that change then returns step S1, without changing
Then return step S3.
The speed bit stream of RTP bag there occurs change, generally represents that the parameter of voice packet there occurs change
Change, thus in originally implementing, obtained the speed bit stream of RTP bag by step S4, thus obtain
The change of the speed bit stream of RTP bag, if there occurs change, restarts step S1 to step
S4, thus reschedule PRB resource according to change, thus change traditional semi-continuous scheduling
During, user once takies PRB resource and will take until the dispatching party of sign off always
Formula, and the waste of the PRB resource that the communication change avoiding PRB scheduling of resource causes and height
Communication quality.
In any one technical scheme described in above-described embodiment one or embodiment two, described step
Rapid S3 specifically comprises the steps that
Data volume according to voice packet to be sent determines the big of described PRB resource to be dispatched
Little；
The interval that sends according to described voice packet to be sent determines described PRB money to be dispatched
The interval data in source.
The size of described PRB resource and two genus of PRB resource corresponding to interval data
Property；The occupied time interval of PRB resource that described interval data is corresponding.So carry out PRB
The scheduling of resource, it is achieved simple and efficient.
Embodiment three:
The present embodiment, on the basis of the technical scheme described in embodiment one or two, may also include step
S3 ＇ according to the time delay of voice packet and/or number of retransmissions adjust scheduled in PRB resource big
Little.
Concrete as higher in coded format G.711a/u compression speed thus in corresponding voice packet
Redundancy many, such that it is able to suitable reduction number of retransmissions, concrete can make re-transmission time
Number is 0 or 1, thus the corresponding PRB resource occupation with number of retransmissions can reduce.
As the highest in coded format G729 compression speed, simultaneously transmission delay also big, to losing
High rate is sensitive therefore can increase number of retransmissions, reduction time delay, thus when dispatching PRB resource then
Increasing for the resource distribution retransmitted of described PRB resource, reduces the PRB resource of time delay also
Accordingly increase.Concrete can be by number of retransmissions that coded format is voice packet G.729
Increase to 3 to 5 times.
Be AMR-NB for coded format, this coded format to packet loss rdativery sensitive, therefore
It is correspondingly improved number of retransmissions to ensure effectively to transmit.Concrete can be to be increased by number of retransmissions
To 3 to 5 times, such that it is able to the PRB scheduling of resource for re-transmission of correspondence is the most
Some.
Being that AMR-WB is belonging to higher code efficiency for coded format, its packet loss is not
During more than 2%, the impact of voice efficiency is little, such that it is able to reduce number of retransmissions, concrete re-transmission
Number of times can be reduced to 1 to 2 times, also consequently reduces scheduled in corresponding PRB resource.
In concrete scheduling process, described PRB resource includes providing corresponding to the physics of time delay
Source, the bandwidth corresponding to re-transmission and being used for transmission or interface-free resources etc..
The scheduling of the PRB resource under several coded format that what the present embodiment was concrete provide is relative
In the change of conventional art, but it is not limited to this several coded formats.Concrete also can be such as
G.723 etc..
Embodiment four:
As it is shown on figure 3, the present embodiment discloses the resource scheduling device of a kind of VOLTE, comprising:
Coded format determines unit (1), in order to determine language according to the RTP bag corresponding to voice packet
The coded format of sound bag;
Predicting unit (2), in order to the number of the voice packet to be sent according to the prediction of described coded format
According to amount and transmission interval；
Scheduling unit (3), in order to pass according to described data volume and transmission interval scheduling PRB resource
Defeated described voice packet to be sent.
In the resource scheduling device of the VOLTE in the present embodiment, the coded format unit of setting
(1) it is used for obtaining the coded format of voice packet；Again by predicting unit (2) according to coded format
Predict that scheduling resource is carried out at data volume and the transmission interval of voice packet to be sent, thus relative to biography
The dispatching method of system considers coded format, thus according to the feature of corresponding coded format and logical
That believes quality requirement carrys out scheduling resource, reaches distributing rationally of resource, ensures good leading to simultaneously
Letter quality
Described coded format determines that unit can carry out encoding lattice to use at least following two mode
The scheduling of formula:
The first: described coded format determines that unit is specially the size according to described RTP bag
Determine the coded format of voice packet.The first described coded format is used to determine the structure of unit
Simply, determine that the coded format speed of voice packet is fast.
The second: described coded format determine unit be specially according to the size of described RTP bag,
The timestamp of RTP bag and the PT territory of RTP bag determine the coded format of voice packet.Use the
Two kinds of described coded formats determine unit, and the accurate rate determining coded format is higher.
Described coded format determine unit concrete can be purely logical circuit, it is also possible to be soft or hard
The functional unit that part combines；It specific implementation process can be corresponding one of each functional module
Device including processor, it is also possible to be that a corresponding process function being integrated with multiple function is neat
Full processor.Concrete can be MCU (single-chip microcomputer), DSP(digital signal processor)
And PLC(Programmable Logic Controller).The memory cell of above-mentioned processor is provided with storage have
Realize the software of corresponding function.
Embodiment five:
The present embodiment is on the basis of embodiment four, and as shown in Figure 4, the resource of VOLTE is adjusted
Degree device may also include that
Speed bit stream acquiring unit (4), in order to obtain the speed bit stream of RTP bag, and judges
Whether the speed bit stream of described RTP bag changes, and triggers PRB money when changing
Rescheduling of source.
Rescheduling of described triggering PRB resource refers to be determined unit weight by described coded format
Newly the RTP bag corresponding to voice packet is determined coded format；Again by described predicting unit, tune
Degree unit performs the function of its correspondence successively, thus reschedules PRB resource.
In embodiment four and the arbitrary described technical scheme of embodiment five, described scheduling unit is concrete
Comprise the steps that the first scheduling sublayer unit, want in order to determine according to the data volume of voice packet to be sent
Dispatch described PRB resource size；Second scheduling sublayer unit, for according to described pending
The interval that sends of the voice packet sent determines the interval data of described PRB resource to be dispatched.
The size of described PRB resource and two attributes of PRB resource corresponding to interval data；
The occupied time interval of PRB resource that described interval data is corresponding.
Embodiment six:
The present embodiment is on the basis of embodiment four or five, and described device may also include and also includes
Adjustment unit, for the PRB scheduled in the time delay according to voice packet and/or number of retransmissions adjustment
The size of resource.
Embodiment four to embodiment six provides the money of a kind of concrete implementation VOLTE of the present invention
The device of source dispatching method, when carrying out the scheduling of resource of VOLTE with said apparatus, Ji Nengbao
Demonstrate,prove preferable communication quality, ensure the raising of the effective rate of utilization of resource simultaneously, the most also have
Simple in construction, it is achieved easy advantage.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, relevant
The those of ordinary skill of technical field, without departing from the spirit and scope of the present invention,
Can also make a variety of changes and modification, the technical scheme of the most all equivalents falls within the present invention
Category, the scope of patent protection of the present invention should be defined by the claims.
Claims (12)
1. the resource regulating method of a VOLTE, it is characterised in that including:
Step S1. determines the coded format of voice packet according to the RTP bag corresponding to voice packet；
Step S2. is predicted the data volume of voice packet to be sent according to described coded format and sends interval；
Step S3. is according to described data volume and sends voice packet to be sent described in interval scheduling PRB resource transmission.
The resource regulating method of VOLTE the most according to claim 1, it is characterised in that described step S1 is specially the coded format determining voice packet according to the size of described RTP bag.
The resource regulating method of VOLTE the most according to claim 1, it is characterised in that described step S1 is specially the coded format determining voice packet according to the PT territory of size, the timestamp of RTP bag and the RTP bag of described RTP bag.
4. according to the resource regulating method of the VOLTE described in any one of claim 1-3, it is characterised in that also include:
Step S4. obtains the speed bit stream of RTP bag, and judges whether the speed bit stream of described RTP bag changes, if it occur that change then returns step S1, then returns step S3 without changing.
5. according to the resource regulating method of the VOLTE described in any one of claim 1-3, it is characterised in that described step S3 specifically includes:
Data volume according to voice packet to be sent determines the size of described PRB resource to be dispatched；
The interval that sends according to described voice packet to be sent determines the interval data of PRB resource to be dispatched.
6. according to the resource regulating method of the VOLTE described in any one of claim 1-3, it is characterised in that described method also includes:
S3 ＇. the size of PRB resource to be dispatched is adjusted according to the time delay of voice packet and/or number of retransmissions.
7. the resource scheduling device of a VOLTE, it is characterised in that including:
Coded format determines unit, in order to determine the coded format of voice packet according to the RTP bag corresponding to voice packet；
Predicting unit, in order to data volume and the transmission interval of the voice packet to be sent according to the prediction of described coded format；
Scheduling unit, in order to according to voice packet to be sent described in described data volume and transmission interval scheduling PRB resource transmission.
The resource scheduling device of VOLTE the most according to claim 7, it is characterised in that described coded format determines that unit is specially the coded format determining voice packet according to the size of described RTP bag.
The resource scheduling device of VOLTE the most according to claim 7, it is characterised in that described coded format determines that unit is specially the coded format determining voice packet according to the PT territory of size, the timestamp of RTP bag and the RTP bag of described RTP bag.
10. according to the resource scheduling device of the VOLTE described in any one of claim 7-9, it is characterised in that also include:
Speed bit stream acquiring unit, in order to obtain the speed bit stream of RTP bag, and judges whether the speed bit stream of described RTP bag changes, and triggers rescheduling of PRB resource when changing.
11. according to the resource scheduling device of the VOLTE described in any one of claim 7-9, it is characterised in that
Described scheduling unit specifically includes: the first scheduling sublayer unit, dispatches the size of described PRB resource in order to the data volume according to voice packet to be sent；Second scheduling sublayer unit, for the interval data of the PRB resource sending interval scheduling according to described voice packet to be sent.
12. according to the resource scheduling device of the VOLTE described in any one of claim 7-9, it is characterised in that described device also includes adjustment unit, adjusts the size of scheduled PRB resource for the time delay according to voice packet and/or number of retransmissions.
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| US10129806B2 (en) | 2016-03-10 | 2018-11-13 | At&T Mobility Ii Llc | Method to assign IP traffic to desired network elements based on packet or service type |
| WO2017185374A1 (en) * | 2016-04-29 | 2017-11-02 | 华为技术有限公司 | Method for processing voice service and base station |
| US9948481B1 (en) * | 2016-10-07 | 2018-04-17 | Qualcomm Incorporated | Uplink voice and video enhancements |
| CN109491805A (en) * | 2018-10-18 | 2019-03-19 | 北京瑞卓喜投科技发展有限公司 | A kind of bonus point rewarding service method and operation system based on block chain |
| CN112511998B (en) * | 2020-12-04 | 2022-09-13 | 素泰智能科技(上海)有限公司 | Method for improving and adjusting VOLTE voice downlink time delay jitter and terminal equipment |
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| CN101222669A (en) * | 2007-11-30 | 2008-07-16 | 东方通信股份有限公司 | System and method for providing amalgamation media resource in communication system |
| CN101572948A (en) * | 2009-06-09 | 2009-11-04 | 华为技术有限公司 | Uplink scheduling method in wireless communication system, base station and wireless communication system |
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| CN101222669A (en) * | 2007-11-30 | 2008-07-16 | 东方通信股份有限公司 | System and method for providing amalgamation media resource in communication system |
| CN101572948A (en) * | 2009-06-09 | 2009-11-04 | 华为技术有限公司 | Uplink scheduling method in wireless communication system, base station and wireless communication system |
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