CN103874127A - Uplink voice service air interface resource configuration method - Google Patents
Uplink voice service air interface resource configuration method Download PDFInfo
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- CN103874127A CN103874127A CN201210532645.0A CN201210532645A CN103874127A CN 103874127 A CN103874127 A CN 103874127A CN 201210532645 A CN201210532645 A CN 201210532645A CN 103874127 A CN103874127 A CN 103874127A
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Abstract
The application discloses an uplink voice service air interface resource configuration method comprising that: a. the primarily-selected MCS mode of voice data of a user is confirmed by a base station according to an SINR of a user uplink channel; b. the preset transmission block size table is inquired by the base station so that a corresponding number of RBs of the primarily-selected MCS is acquired when the transmission block size is the preset air interface transmission voice packet size L; and c. the base station inquires the transmission block size table and acquires the corresponding minimum-order MCS of the number of the RBs when the transmission block size the greater than L, and downlink authorization is performed according to the minimum-order MCS. Probability of error in primary transmission can be effectively reduced by the method and voice quality can be enhanced.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of collocation method of ascending voice business interface-free resources.
Background technology
In private network group system, up speaker's voice quality is most important, directly has influence on all groups associated with this speaker, once speaker's voice quality is bad, the user of the group that all monitorings are associated cannot receive voice clearly; Meanwhile, the meeting often of speaker's voice, the information of key in emergency event.Therefore,, in private network, speaker's voice real-time must be guaranteed.
In the selection scheme of existing ascending voice modulating-coding (MCS) mode, be mainly the MCS that selects to upload speech data according to Signal to Interference plus Noise Ratio (SINR), this processing mode has gain during to PS domain data service, still, for speech business, be undesirable.Make a concrete analysis of as follows:
At present, select the method for speech business interface-free resources mainly to comprise the steps:
Step 1, according to user's Signal to Interference plus Noise Ratio (SINR), select user's MCS mode.
Step 2, according to the MCS selecting in user's the data to be transferred amount of eating dishes without rice or wine (BSR) and step 1, select corresponding Resource Block (RB) number.
The RB number that this step is selected will be that actual channel quality with user matches.
Step 3, according in step 2 select RB number, according to 2,3,5 principles, determine finally eat dishes without rice or wine transmission RB resource; Carry out downstream grants according to described MCS.
This step is in order to ensure voice quality, utilizes described 2,3,5 principles to determine the final RB using.According to existing protocol, the RB number of eating dishes without rice or wine that described 2,3,5 principles distribute must be to meet 2
m3
n5
k, wherein, m, n, k are nonnegative integer.Necessarily be more than or equal to according to the selected RB number of 2,3,5 principles the RB number of selecting in step 2, that is to say, the RB number of resources of the transmission of finally eating dishes without rice or wine is greater than the needed number of resources of actual channel quality, like this, has just occurred the problem of Resource Block waste.
In actual applications, when in step 1, determined MCS may be with uplink, the channel of reality does not match, may occur the situation of channel variation, and the ability of high-order MCS opposing channel quality variation is poor, that is to say, in the time that MCS has approached the ability of SINR, once channel quality variation, its demodulation ability reduces, and will directly cause just passing mistake, affect voice quality, and then have influence on group.Further, spread out of originally after mistake, and just need to retransmit, this real-time that not only has influence on speech business can not be guaranteed; But also waste retransmits required interface-free resources.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of collocation method of ascending voice business interface-free resources, and the method can effectively reduce the first wrong probability that spreads out of, and promotes voice quality.
In order to achieve the above object, the technical scheme that the present invention proposes is:
A collocation method for ascending voice business interface-free resources, comprising:
The primary election MCS mode of described user's speech data, according to the SINR of user uplink channel, is determined in a, base station;
Default transmission block size table is inquired about in b, described base station, knows that described primary election MCS is default corresponding RB number when voice packet size L of eating dishes without rice or wine in transmission block size;
Described transmission block size table is inquired about in c, described base station, knows described RB number corresponding minimum rank MCS in the time that transmission block size is greater than L, carries out downstream grants according to described minimum rank MCS.
In sum, the collocation method of the ascending voice business interface-free resources that the present invention proposes, in the situation that not increasing resource overhead, lowers MCS exponent number, increases the demodulation ability of base station, can effectively reduce and just spread out of wrong probability, promotes voice quality.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the embodiment of the present invention one.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is: consider that low order MCS is higher to the decoding capability of poor channel, the present invention is in the time determining the MCS exponent number of uplink, in the situation that not increasing interface-free resources, use the relatively MCS of low order, just spread out of wrong probability effectively to reduce, promote voice quality, and can effectively avoid the waste of resource.
Fig. 1 is the schematic flow sheet of the embodiment of the present invention one, and as shown in Figure 1, this embodiment mainly comprises:
The primary election MCS mode of described user's speech data, according to the SINR of user uplink channel, is determined in step 101, base station.
The specific implementation of this step, with the step 1 in above-mentioned existing method, does not repeat them here.
Default transmission block size table (transport block size table) is inquired about in step 102, described base station, knows that described primary election MCS is default corresponding Resource Block RB number when voice packet size L of eating dishes without rice or wine in transmission block size.
In this step, described in the voice packet size L that eats dishes without rice or wine can adopt existing method to determine, also can adopt following preferred approach to realize.
Preferably, can described L be set according to L=Ldata+Lhead+Lmce, described Ldata is the amount of voice data producing in each sampling period; Described Lhead is the packet header length of described user's data link layer, and described Lmce is default Mac layer control information length.
It should be noted that, in actual applications, according to the own characteristic of speech business, speech business speed is fixed, the data volume that speech business produces within the sampling period is stable, it is also stable that voice packet arrives time interval of data link layer, so the value of described Ldata and Lhead is fixed, and then described L is also fixed value.
Here, described Lmce can determine suitable value by emulation, preferably, can be set to the length of the Mac control information (MCE) of growing most, like this, can contain the transmission situation of all MCE.
The table of described transmission block size table for stipulating in existing protocol, it has comprised each rank MCS corresponding to different transmission block sizes and the corresponding demodulation upper limit is SINR.
Described transmission block size table is inquired about in step 103, described base station, knows described RB number corresponding minimum rank MCS in the time that transmission block size is greater than described L, carries out downstream grants according to described minimum rank MCS.
In this step, using described RB number, in the time that transmission block size is greater than L, corresponding minimum rank MCS is as the MCS of downstream grants, and to select as much as possible low order MCS modulation, like this, the MCS that this step is selected is as a rule by the MCS lower than primary election in step 101.Here, make full use of the ability strong feature of low order MCS with respect to high-order MCS opposing channel quality variation, SINR when as long as the desired SINR of MCS is not higher than transmission when ultimate authority, just correctly demodulation, SINR while making to transmit data declines, and base station still has higher probability demodulation out, thereby more can tolerate the deterioration of channel quality, reduce the wrong probability of first biography, and then promoted the quality of voice.Meanwhile, in whole process, do not increase the expense of interface-free resources yet.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a collocation method for ascending voice business interface-free resources, is characterized in that, comprising:
The primary election MCS mode of described user's speech data, according to the Signal to Interference plus Noise Ratio SINR of user uplink channel, is determined in a, base station;
Default transmission block size table transport block size table is inquired about in b, described base station, knows that described primary election MCS is default corresponding Resource Block RB number when voice packet size L of eating dishes without rice or wine in transmission block size;
Described transmission block size table is inquired about in c, described base station, knows described RB number corresponding minimum rank MCS in the time that transmission block size is greater than L, carries out downstream grants according to described minimum rank MCS.
2. method according to claim 1, is characterized in that, according to L=Ldata+Lhead+Lmce, described L is set, and described Ldata is the amount of voice data producing in each sampling period; Described Lhead is the packet header length of described user's data link layer, and described Lmce is default Mac layer control information length.
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| CN201210532645.0A CN103874127B (en) | 2012-12-12 | 2012-12-12 | The collocation method of uplink voice traffic interface-free resources |
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| CN201210532645.0A CN103874127B (en) | 2012-12-12 | 2012-12-12 | The collocation method of uplink voice traffic interface-free resources |
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| CN103874127A true CN103874127A (en) | 2014-06-18 |
| CN103874127B CN103874127B (en) | 2017-09-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800507A (en) * | 2016-08-31 | 2018-03-13 | 成都鼎桥通信技术有限公司 | The MCS systems of selection of voice service scheduling and equipment in a kind of group system |
| CN112153677A (en) * | 2020-09-08 | 2020-12-29 | 北京长焜科技有限公司 | Uplink AMC optimization method for small telephone traffic scene |
| CN113141578A (en) * | 2020-01-19 | 2021-07-20 | 大唐移动通信设备有限公司 | MCS (modulation and coding scheme) adjusting method and device for cluster group call service |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480761A (en) * | 2010-11-26 | 2012-05-30 | 北京大学 | Method for determining multicast server (MCS) in long-term evolution scheduling |
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2012
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480761A (en) * | 2010-11-26 | 2012-05-30 | 北京大学 | Method for determining multicast server (MCS) in long-term evolution scheduling |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800507A (en) * | 2016-08-31 | 2018-03-13 | 成都鼎桥通信技术有限公司 | The MCS systems of selection of voice service scheduling and equipment in a kind of group system |
| CN107800507B (en) * | 2016-08-31 | 2020-11-13 | 成都鼎桥通信技术有限公司 | MCS selection method and equipment for voice service scheduling in cluster system |
| CN113141578A (en) * | 2020-01-19 | 2021-07-20 | 大唐移动通信设备有限公司 | MCS (modulation and coding scheme) adjusting method and device for cluster group call service |
| CN113141578B (en) * | 2020-01-19 | 2022-06-10 | 大唐移动通信设备有限公司 | MCS (modulation and coding scheme) adjusting method and device for cluster group call service |
| CN112153677A (en) * | 2020-09-08 | 2020-12-29 | 北京长焜科技有限公司 | Uplink AMC optimization method for small telephone traffic scene |
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| CN103874127B (en) | 2017-09-01 |
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