CN106358310B - VoLTE business uplink dynamic dispatching optimization method based on DRX cycle - Google Patents
VoLTE business uplink dynamic dispatching optimization method based on DRX cycle Download PDFInfo
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- CN106358310B CN106358310B CN201610763146.0A CN201610763146A CN106358310B CN 106358310 B CN106358310 B CN 106358310B CN 201610763146 A CN201610763146 A CN 201610763146A CN 106358310 B CN106358310 B CN 106358310B
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- voice packet
- scheduling
- drx cycle
- dynamic dispatching
- voice
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of VoLTE business uplink dynamic dispatching optimization method based on DRX cycle, it is when the base station voice service for opening DRX uses dynamic dispatching, the judgement to voice packet attribute is carried out by PDCP first, then by the property notification MAC of voice packet, MAC is determined according to packet attribute needs increased voice packet size, when receiving the BSR containing LCG1 that UE is reported, MAC additionally increases ceiling voice packet size according to the size of the pdcp voice packet determined property voice packet notified, and in scheduling.The present invention solves in prior art scheduling mode the problem of causing after having carried out a uplink scheduling because not considering the influence of DRX cycle, waiting and dispatching there is also voice packet, voice service end-to-end time delay is caused to increase, affect user's perception.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of VoLTE business uplink dynamic dispatching based on DRX cycle
Optimization method.
Background technique
TD-LTE is the English letter of English Time Division Long Term Evolution (timesharing long term evolution)
Claim, is a kind of mechanics of communication and standard based on 3GPP LTE (third generation partner program Long Term Evolution).3GPP
LTE is the standard of upcoming 4th generation wireless access network.The significant challenge that designers persistently face, which is to reduce, moves
The system power consumption of dynamic terminal, mobile terminal are also referred to as user equipment (UE) in LTE term.In nearest picture UMTS and
In communication plan as the LTE system that will occur, UE uses discontinuous reception (DRX) mode.
It is (such as every that DRX means that UE stops monitoring physical downlink control channel (PDCCH) to clearly defined subframe
2ms in 20ms), and it is allowed to enter battery saving mode.Fig. 1 shows the basic principle of DRX function.DRX process is by passing through nothing
Line resources control (RRC) signaling is come one group of parameter definition specific to UE configuring.RRC agreement has two states: RRC_
IDLE and RRC_CONNECTED.RRC_CONNECTED state mean corresponding UE be to network it is known, in cell-level UE
Position it is found that mobility is network controlled, unicast data transmission is possible, and in order to which DRX mode is supported in power saving.DRX
Process is substantially made of the DRX cycle with " unlatching " duration and a DRX period, when " unlatching " continues
Interior UE will monitor PDCCH for dynamic dispatching, and within the DRX period, UE is allowed to stop monitoring PDCCH and can be into
Enter battery saving mode.
DRX is the characteristic of UE rank, and the shortest time that UE is in activated state is the onDurationTimer specified time,
And maximum duration is indefinite.As shown in Figure 1, during onduration timer, UE needs to monitor PDCCH, and ENB can be
It is scheduled in this time.Although each new biography scheduling can all start inactive timer, increases UE and be in activated state
Time, but for voice service, inactive timer setup time is short, can not continue to that next voice packet is sent,
If inactive timer setup time is too long, will be unable to play the role of as saving power for terminal.It is needed when next voice packet is sent
Wait onduration timer.The DRX default parameters of voice service is as shown in Table 1.
One voice service DRX of table default ginseng mark
| DRX parameter | Proposed arrangement value |
| longDRX-Cycle | Sf40 |
| onDurationTimer | Psf6 |
| DRX-InactivityTime | Ps4 |
| DRX-RetransmissionTimer | Sf4 |
It is provided according to 36.321 agreements, when terminal has upstream data to need to send, needs to send SR to base station
(scheduling request, scheduling request) carries out the resource bid of new data transmission, and base station periodically carries out SR detection, such as
Fruit detects that SR then distributes certain ascending resource to the UE and carries out BSR, has allocated only the transmission block resource that BSR is reported, does not examine
The influence for considering DRX cycle, due to the influence of DRX cycle, the voice packet for causing UE to generate needs that a DRX cycle is waited just may be used again
It can be dispatched, the end-to-end time delay that will lead to voice packet increases, and influences user's perception.
Therefore uplink and downlink resource is asymmetric in TD-LTE system, and ascending resource is always limited resources.With
VoLTE i.e. will be commercial, how to improve the ascending wireless resource utilization rate comprising voice service as urgent problem to be solved.
Summary of the invention
It is an object of the invention to: a kind of VoLTE business uplink dynamic dispatching optimization based on DRX cycle is provided, is solved
Cause after having carried out a uplink scheduling in prior art scheduling mode because not considering the influence of DRX cycle, also
The problem of waiting and dispatching there are voice packet, voice service end-to-end time delay is caused to increase, affecting user's perception.
To achieve the above object, the invention adopts the following technical scheme:
One kind is based on Mobile state in the VoLTE business in DRX (Discontinues Reception, discontinuous reception) period
Method for optimizing scheduling, the method specifically comprise the following steps:
(1) it first turns on the base station of DRX and when voice service is using dynamic dispatching, voice packet attribute is carried out by PDCP
Judgement, obtains the attribute information of voice packet；
(2) attribute information of voice packet is notified MAC layer by PDCP, when receive that UE reports contains LCG1 (logical
Channel group, logic channel group) BSR (Buffer Status Report, buffer status reporting) when, MAC layer according to
Voice packet attribute information, which determines, needs increased voice packet size；
(3) it when terminal has upstream data to need to send, needs to send the resource Shen that SR carries out new data transmission to base station
Please, base station periodically carries out SR scheduling detection, if detecting SR scheduling and UE uplink SPS (semi-persistent
Scheduling, semi-continuous scheduling) un-activation, the transmission block of MAC scheduling to the UE distribute certain ascending resource carry out BSR with
And additionally the upstream data of increase ceiling (DRX cycle/20ms) a voice packet size is transmitted.
Preferably, the attribute information of voice packet described in step (1) includes voice packet size, whether carries out head compression and language
Sound coded format.
Preferably, MAC layer does not increase transport block size to the scheduling of voice service in step (2).
Preferably, in step (3) if SR scheduling can not transmit entire voice packet, this voice packet will need to carry out again
Uplink scheduling.
Preferably, the time point of uplink scheduling again is that UE can be again after current DRX cycle, and during the period
Secondary ceiling voice packet of generation.
Preferably, the DRX cycle is 20ms.
It is an advantage of the current invention that
(1) present invention considers the influence of DRX cycle in voice service uplink dynamic dispatching, by additionally increasing transmission block
Size reduces the end-to-end time delay of voice packet, improves user's perception.It solves in prior art scheduling mode because not
Consider the influence of DRX cycle and cause after having carried out a uplink scheduling, waits and dispatching there is also voice packet, cause voice industry
The problem of business end-to-end time delay increases, and affects user's perception；
(2) present invention effectively considers the characteristics of voice packet rule reaches and packet size is relatively fixed and DRX cycle tune
Degree, optimizes voice service uplink dynamic scheduling scheme, the BSR containing LCG1 that UE is reported is received, when MAC is scheduled
It is additional to increase ceiling (DRX cycle/20ms) a voice packet size, reduce the end-to-end time delay of voice packet, improve uplink without
Line resource utilization.
Detailed description of the invention
Fig. 1 is described in a kind of VoLTE business uplink dynamic dispatching optimization method based on DRX cycle of the present invention
The period schematic diagram of DRX；
Fig. 2 is described in a kind of VoLTE business uplink dynamic dispatching optimization method based on DRX cycle of the present invention
The judgement flow diagram of MAC scheduling.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment
A kind of VoLTE business uplink dynamic dispatching optimization method based on DRX cycle, the method specifically include following step
It is rapid:
(1) it first turns on the base station of DRX and when voice service is using dynamic dispatching, voice packet attribute is carried out by PDCP
Judgement, obtains the attribute information of voice packet, and the DRX cycle is 20ms；
(2) attribute information of voice packet is notified MAC layer, when receiving the BSR containing LCG1 that UE is reported, MAC by PDCP
Layer is determined according to voice packet attribute information needs increased voice packet size, before this, MAC layer to the scheduling of voice service not
Increase transport block size；
(3) it when terminal has upstream data to need to send, needs to send the resource Shen that SR carries out new data transmission to base station
Please, base station periodically carries out SR scheduling detection, if detecting SR scheduling and UE uplink SPS un-activation, the transmission block of MAC scheduling
Certain ascending resource, which is distributed, to the UE carries out BSR and the additional upstream data progress for increasing ceiling voice packet size
Transmission；If SR scheduling can not transmit entire voice packet, this voice packet will need to carry out a uplink scheduling again, it is described again
Uplink scheduling time point is that UE can generate ceiling voice again after current DRX cycle, and during the period
Packet.
In the case where opening DRX, ENB is only capable of being scheduled in the activated state of UE.Consider the influence of DRX cycle, it is next
Secondary uplink scheduling can be after DRX cycle, and UE can generate ceiling (DRX cycle/20ms) a voice packet again during this section, therefore
Transmission block increases ceiling (DRX cycle/20ms) a voice packet size, can reduce the end-to-end propagation delay time of voice service,
User's perception is improved, while improving ascending wireless resource utilization rate.
It is worth noting that, the attribute information of voice packet described in step (1) includes voice packet size, whether carries out head pressure
Contracting and speech-encoded format etc..
Based on above-mentioned, the present invention considers the influence of DRX cycle in voice service uplink dynamic dispatching, by additionally increasing
Transport block size reduces the end-to-end time delay of voice packet, improves user's perception.Solves prior art scheduling mode
It is middle to cause after having carried out a uplink scheduling because not considering the influence of DRX cycle, it waits and dispatching there is also voice packet, cause
The problem of voice service end-to-end time delay increases, and affects user's perception；And effectively consider that voice packet rule is reached and wrapped big
The characteristics of small relatively fixed and DRX cycle scheduling, optimize voice service uplink dynamic scheduling scheme, receive UE and report
The BSR containing LCG1, additionally increase ceiling (DRX cycle/20ms) a voice packet size when MAC is scheduled, reduce language
The end-to-end time delay of sound packet improves ascending wireless resource utilization rate.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen in scope of the presently claimed invention.
Claims (5)
1. a kind of VoLTE business uplink dynamic dispatching optimization method based on DRX cycle, which is characterized in that the method is specific
Include the following steps:
(1) base station of DRX discontinuous reception is first turned on and when voice service is using dynamic dispatching, by PDCP to voice packet category
Property is judged, the attribute information of voice packet is obtained；
(2) attribute information of voice packet is notified MAC layer by PDCP, as the BSR containing LCG1 logic channel group for receiving UE and reporting
When buffer status reporting, MAC layer is determined according to voice packet attribute information needs increased voice packet size；
(3) it when terminal has upstream data to need to send, needs to send the money that SR scheduling request carries out new data transmission to base station
Source application, base station periodically carries out SR scheduling detection, if detecting SR scheduling and UE uplink SPS semi-continuous scheduling un-activation,
The transmission block of MAC scheduling distributes certain ascending resource to the UE and carries out BSR and additionally ceiling voice packet size of increase
Upstream data transmitted, the ceiling be DRX cycle/20ms.
2. the VoLTE business uplink dynamic dispatching optimization method according to claim 1 based on DRX cycle, feature exist
In the attribute information of voice packet described in step (1) includes voice packet size, whether carries out head compression and speech-encoded format.
3. the VoLTE business uplink dynamic dispatching optimization method according to claim 1 based on DRX cycle, feature exist
In MAC layer does not increase transport block size to the scheduling of voice service in step (2).
4. the VoLTE business uplink dynamic dispatching optimization method according to claim 1 based on DRX cycle, feature exist
In in step (3) if SR scheduling can not transmit entire voice packet, this voice packet will need to carry out a uplink tune again
Degree.
5. the VoLTE business uplink dynamic dispatching optimization method according to claim 4 based on DRX cycle, feature exist
In the time point of uplink scheduling again is that UE can be generated again after current DRX cycle, and during the period
Ceiling voice packet.
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| US10531512B2 (en) * | 2015-04-01 | 2020-01-07 | Huawei Technologies Co., Ltd. | System and method for a tracking channel |
| CN109246830A (en) * | 2017-04-28 | 2019-01-18 | 大唐移动通信设备有限公司 | A kind of uplink dynamic dispatching optimization method and device of voice service |
| CN108322940B (en) * | 2018-04-04 | 2021-05-28 | 京信通信系统（中国）有限公司 | Uplink semi-static scheduling method, device and system |
| CN111343647B (en) * | 2018-12-19 | 2022-08-02 | 中国移动通信集团重庆有限公司 | Method, apparatus, device and medium for user perception evaluation |
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