CN102665270A - Method for reducing uplink voice service transmission delay in long term evolution (LTE) system - Google Patents
Method for reducing uplink voice service transmission delay in long term evolution (LTE) system Download PDFInfo
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Abstract
The invention provides a method for reducing uplink voice service transmission delay in a long term evolution (LTE) system. The method comprises the following steps that: a base station judges whether a data volume corresponding to a buffer status report (BSR) index carried in a user equipment (UE) uplink data package is zero or not when subframes #n receive the UE (user equipment) uplink data package; if the data volume is not zero, a data volume saved value corresponding to the UE on the base station side is updated and subsequent resource distribution is carried out; if the data volume is zero, whether voice data are contained in the data package or not is judged; if the voice data are not contained, the BSR saved value corresponding to the UE on the base station side is updated and subsequent resource distribution is carried out; if the voice data are contained, the base station transmits uplink Grant (UL-GRANT). According to the transmission characteristic of the voice data package, the transmission delay of the uplink voice data package is adaptively reduced and the voice service transmission performance is effectively improved.
Description
Technical field
The present invention relates in a kind of communication system to reduce the method for uplink traffic transmission time delay, relate in particular to the method that reduces the professional propagation delay time of ascending voice in a kind of LTE system.
Background technology
In LTE (Long Term Evolution, the Long Term Evolution) system, the speech business transmission has packet property arrival and the relatively-stationary characteristics of packet size at interval, and to these characteristics, the LTE system adopts the machine-processed transmitting audio data bag of semi-continuous scheduling.Before the bag closeness did not reach activation semi-continuous scheduling thresholding, speech data still adopted the mode of dynamic dispatching to transmit.
UE (User Equipment; Subscriber equipment or terminal) beginning speech business after; Upstream voice data will make UE produce conventional BSR (Buffer Status Report, Buffer Status Report) and start retxBSR-Timer (retransmit the BSR timer: its duration is confirmed by agreement TS36.331).After retxBSR-Timer is overtime; UE obtains UL-GRANT (uplink Grant, uplink authorization) through the SR (Scheduling request, dispatch request) that conventional BSR triggers; And at corresponding PUSCH (Physical Uplink Shared Channel; Physical Uplink Shared Channel) transmitting audio data, (Base Station BS) transmits follow-up VoP to obtain further UL-GRANT simultaneously BSR to be reported to the base station.
It is thus clear that UE needed elder generation through reporting BSR to obtain the UL-GRANT that the base station issues before carrying out the upstream voice data transmission.UE reports BSR to obtain UL-GRANT has following two kinds of situation:
If 1 currently has no UL-GRANT; As shown in Figure 1; The conventional BSR that UE produces will trigger SR and start timer retxBSR-Timer, and the base station is distributed the PUSCH resource and issued UL-GRANT UE after receiving SR, and UE is at the corresponding PUSCH resource reporting BSR of UL-GRANT.If BSR, then need wait until retxBSR-Timer through HARQ (Hybrid Automatic Repeat Request mixes automatic repeat requests) still error of transmission of maximum transmission times and obtain UL-GRANT by conventional BSR triggering SR again after overtime.And before retxBSR-Timer is overtime, UE will not carry out any uplink.If UE is correct in the corresponding PUSCH transmitted over resources of UL-GRANT, then the base station can know that the BSR of UE and then continuation distribute ascending resource and issue UL-GRANT UE.
If 2 have currently existed continuous UL-GRANT, as shown in Figure 2, UE will restart timer periodicBSR-Timer (BSR periodic report timer: its duration is confirmed by agreement TS36.331) and retxBSR-Timer after reporting BSR.Behind any timer expired, UE will produce BSR again and upload in the corresponding PUSCH resource of UL-GRANT, the base station with this BSR of knowing and the comprehensive continued of knowing before of BSR to the UE Resources allocation and issue UL-GRANT.
As shown in Figure 3; If the VoP etc. to be transmitted is less; UE can all transmit current these data after obtaining UL-GRANT through SR; The BSR index that companion data transfers to the base station is zero, is not then having under other professional situation, triggers SR after the speech business packets need of follow-up arrival wait retxBSR-Timer is overtime again and obtains UL-GRANT; Because regulation timer retxBSR-Timer minimal time delay is 320ms in the agreement, so the ascending voice business will occur than long time delay.
Summary of the invention
The object of the present invention is to provide the method that reduces the professional propagation delay time of ascending voice in a kind of LTE system, problem possibly occur than long time delay to solve the ascending voice business that prior art exists.
In order to realize the object of the invention; The method that reduces the professional propagation delay time of ascending voice in the LTE provided by the invention system may further comprise the steps: when the base station receives UE upstream data bag at subframe #n, judge whether the corresponding data volume of BSR index of carrying in the said UE upstream data bag is zero; If said data volume is zero, then judge in the said UE upstream data bag whether comprise VoP; If comprise VoP, then issue UL-GRANT by the base station.
According to a kind of preferred implementation of the method that reduces the professional propagation delay time of ascending voice in the above-mentioned LTE system, wherein, judge in the said UE upstream data bag to comprise after the VoP also further judge whether comprise redundant data in the said VoP;
If comprise redundant data in the said VoP, then UL-GRANT is continued to issue at subframe #n+LowRateSubSfn in the base station; If do not comprise redundant data in the said VoP, then UL-GRANT is continued to issue at subframe #n+High RateSubSfn in the base station.
According to a kind of preferred implementation of the method that reduces the professional propagation delay time of ascending voice in the above-mentioned LTE system, wherein, further comprising the steps of: after UL-GRANT issued successfully, cycle criterion was carried out at corresponding upstream data time point in the base station.
A kind of preferred implementation according to the method that reduces the professional propagation delay time of ascending voice in the above-mentioned LTE system; Wherein, Further comprising the steps of: as, then to upgrade base station side to data volume save value that should UE and carry out follow-up resource allocation if said data volume is non-vanishing.
A kind of preferred implementation according to the method that reduces the professional propagation delay time of ascending voice in the above-mentioned LTE system; Wherein, Further comprising the steps of: as, then to upgrade base station side to BSR save value that should UE and carry out follow-up resource allocation if do not comprise VoP in the said UE upstream data bag.
According to a kind of preferred implementation of the method that reduces the professional propagation delay time of ascending voice in the above-mentioned LTE system, wherein, saidly carry out follow-up resource allocation and be meant according to normal sequential and issue UL-GRANT.
The transmission feature that the present invention is directed to VoP has reduced the propagation delay time of upstream voice data bag with adaptive mode, has promoted the transmission performance of speech business effectively.In addition, the present invention is the extension that agreement realizes, has the advantage that is easy to realize.
Description of drawings
The design sketch that Fig. 1 does not exist the BSR under the Ul-Grant situation to report for prior art;
The design sketch that Fig. 2 exists the BSR under the Ul-Grant situation to report for prior art;
Fig. 3 carries out the design sketch of the professional transmission of ascending voice for prior art;
Fig. 4 is the FB(flow block) of the preferred embodiment of the present invention;
Fig. 5 is the laser propagation effect comparison diagram of the preferred embodiment of the present invention and prior art.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is explained further details.
In order to solve the bigger problem of the professional propagation delay time of ascending voice in the present LTE system; The present invention is through monitoring on the pairing PUSCH resource of obtaining based on SR of UL-GRANT; The transmission plumpness of terminal speech data and the BSR value condition that is reported take adaptive mode to increase the transmission opportunity of VoP.
Fig. 1 shows the FB(flow block) of the preferred embodiment of the present invention, and like step S100, receive after the SR of UE the base station, for UE distributes up PUSCH resource and issues UL-GRANT.
Then like step S101, the base station receives the upstream data bag at subframe #n after UL-GRANT successfully issues, and packet content is monitored.
Then, judge by the base station like step S103, if the corresponding data volume of the BSR index that carries in the packet is non-vanishing, then execution in step S113 and step S115, the renewal base station side is to data volume save value that should UE and carry out follow-up resource allocation.
Judged result like step S103 is zero, also is that the pairing data volume of BSR index of carrying in the packet is zero, then execution in step S105: whether comprise VoP in the judgment data bag.If there is not VoP, then execution in step S113 and step S115 as previously mentioned, upgrade base station side to BSR save value that should UE.
As in step S105, in the judgment data bag VoP being arranged, execution in step S107 then: whether comprise redundant data in the judgment data bag to carry out follow-up processing.As redundant data is arranged in the packet, execution in step S111 then: subframe #n+LowRateSubSfn (LowRateSubSfn: the low rate subframe scheduling at interval, implication for scheduling time next time point with the interval of current judgement time point) continue to issue UL-GRANT.If do not contain redundant data in the packet; Execution in step S109 then: subframe #n+High RateSubSfn (High RateSubSfn: the two-forty subframe scheduling at interval, implication for scheduling time next time point with the interval of current judgement time point) continue to issue UL-GRANT.In step S109 and step S111, after UL-GRANT issues successfully, then return step S101: above-mentioned each item computing is carried out again at corresponding upstream data time point in the base station.The effect of the preferred embodiment of the present invention is as shown in Figure 5, can be known by Fig. 5, and compared with prior art, the present invention can obviously reduce upstream voice data traffic transmission time delay.
To sum up; The present invention is through monitoring on the pairing PUSCH resource of obtaining based on SR of UL-GRANT; The transmission plumpness of terminal speech data and the BSR value condition that is reported; Take adaptive mode to increase the transmission opportunity of VoP, can obviously reduce the propagation delay time of upstream voice data bag, promote the transmission performance of speech business effectively; And the present invention is the extension that agreement realizes, is easy to realize.
Can know that by technological general knowledge the present invention can realize through other the embodiment that does not break away from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All within the scope of the present invention or the change in being equal to scope of the present invention all comprised by the present invention.
Claims (6)
1. reduce the method for the professional propagation delay time of ascending voice in the LTE system, it is characterized in that, may further comprise the steps:
When the base station receives UE upstream data bag at subframe #n, judge whether the corresponding data volume of BSR index of carrying in the said UE upstream data bag is zero;
If said data volume is zero, then judge in the said UE upstream data bag whether comprise VoP;
If comprise VoP in the said UE upstream data bag, then issue UL-GRANT by the base station.
2. method according to claim 1 is characterized in that, comprises after the VoP in the judgment data bag, also further judges whether comprise redundant data in the VoP;
If comprise redundant data in the said VoP, then UL-GRANT is continued to issue at subframe #n+LowRateSubSfn in the base station;
If do not comprise redundant data in the said VoP, then UL-GRANT is continued to issue at subframe #n+High RateSubSfn in the base station.
3. method according to claim 1 and 2 is characterized in that, and is further comprising the steps of:
After UL-GRANT issued successfully, cycle criterion was carried out at corresponding upstream data time point in the base station.
4. method according to claim 1 is characterized in that, and is further comprising the steps of:
If said data volume is non-vanishing, then upgrade base station side to data volume save value that should UE and carry out follow-up resource allocation.
5. method according to claim 1 is characterized in that, and is further comprising the steps of:
If do not comprise VoP in the said UE upstream data bag, then upgrade base station side to BSR save value that should UE and carry out follow-up resource allocation.
6. according to claim 4 or 5 described methods, it is characterized in that,
Saidly carry out follow-up resource allocation and be meant according to normal sequential and issue UL-GRANT.
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| CN102932939A (en) * | 2012-10-12 | 2013-02-13 | 中兴通讯股份有限公司 | Method and system for optimizing uplink scheduling of LTE (Long Term Evolution) system, base station and terminal |
| CN103891385A (en) * | 2011-08-16 | 2014-06-25 | 阿尔卡特朗讯 | Method and apparatus for controlling buffer status report messaging |
| WO2016177092A1 (en) * | 2015-08-19 | 2016-11-10 | 中兴通讯股份有限公司 | Scheduling method and scheduling device for uplink voice service, and base station |
| CN106535347A (en) * | 2015-09-10 | 2017-03-22 | 大唐移动通信设备有限公司 | Uplink resource allocation method and device based on uplink scheduling request in voice service |
| CN106550472A (en) * | 2015-09-23 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of method of scheduling delay for improving uplink voice traffic and base station |
| CN106941728A (en) * | 2016-01-04 | 2017-07-11 | 普天信息技术有限公司 | A kind of up dynamic dispatching method and device |
| WO2017185205A1 (en) * | 2016-04-25 | 2017-11-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Device and method for link adaptation in a wireless network |
| CN107347197A (en) * | 2016-05-06 | 2017-11-14 | 普天信息技术有限公司 | A kind of business transmitting method and device |
| 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 |
| CN109906646A (en) * | 2016-11-30 | 2019-06-18 | 华为技术有限公司 | Information transferring method, base station and terminal device |
| CN114007233A (en) * | 2021-10-22 | 2022-02-01 | 锐迪科微电子科技（上海）有限公司 | Buffer Status Report (BSR) reporting method and device and electronic equipment |
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| CN103891385A (en) * | 2011-08-16 | 2014-06-25 | 阿尔卡特朗讯 | Method and apparatus for controlling buffer status report messaging |
| CN103891385B (en) * | 2011-08-16 | 2017-12-15 | 阿尔卡特朗讯 | Method and apparatus for controlling Buffer Status Report message |
| CN102932939A (en) * | 2012-10-12 | 2013-02-13 | 中兴通讯股份有限公司 | Method and system for optimizing uplink scheduling of LTE (Long Term Evolution) system, base station and terminal |
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| CN106535347B (en) * | 2015-09-10 | 2019-09-17 | 大唐移动通信设备有限公司 | Uplink resource allocating method and device in voice service based on uplink scheduling request |
| CN106535347A (en) * | 2015-09-10 | 2017-03-22 | 大唐移动通信设备有限公司 | Uplink resource allocation method and device based on uplink scheduling request in voice service |
| CN106550472A (en) * | 2015-09-23 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of method of scheduling delay for improving uplink voice traffic and base station |
| CN106941728A (en) * | 2016-01-04 | 2017-07-11 | 普天信息技术有限公司 | A kind of up dynamic dispatching method and device |
| WO2017185205A1 (en) * | 2016-04-25 | 2017-11-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Device and method for link adaptation in a wireless network |
| US10021708B2 (en) | 2016-04-25 | 2018-07-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Device and method for link adaptation in a wireless network |
| CN107347197A (en) * | 2016-05-06 | 2017-11-14 | 普天信息技术有限公司 | A kind of business transmitting method and device |
| CN107347197B (en) * | 2016-05-06 | 2019-09-17 | 普天信息技术有限公司 | A kind of business transmitting method and device |
| CN109906646A (en) * | 2016-11-30 | 2019-06-18 | 华为技术有限公司 | Information transferring method, base station and terminal device |
| CN109906646B (en) * | 2016-11-30 | 2021-02-12 | 华为技术有限公司 | Information transmission method, base station and terminal equipment |
| 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 |
| CN114007233A (en) * | 2021-10-22 | 2022-02-01 | 锐迪科微电子科技（上海）有限公司 | Buffer Status Report (BSR) reporting method and device and electronic equipment |
| CN114007233B (en) * | 2021-10-22 | 2024-03-22 | 锐迪科微电子科技（上海）有限公司 | Buffer status report BSR reporting method and device and electronic equipment |
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