CN100589630C - Method for performing wireless resource allocation using forward channel quality information - Google Patents
Method for performing wireless resource allocation using forward channel quality information Download PDFInfo
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- CN100589630C CN100589630C CN200710072867A CN200710072867A CN100589630C CN 100589630 C CN100589630 C CN 100589630C CN 200710072867 A CN200710072867 A CN 200710072867A CN 200710072867 A CN200710072867 A CN 200710072867A CN 100589630 C CN100589630 C CN 100589630C
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- base station
- portable terminal
- control information
- rate control
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000013468 resource allocation Methods 0.000 title 1
- 238000013459 approach Methods 0.000 claims description 8
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention discloses a method of performing radio resource assignment by utilizing the forward signal channel quality information. The invention comprises the steps: a. the base station transmits the forward signal channel, and the mobile terminal generates the forward rate control information DRC<SUB>n</SUB> and report to the base station; b. the base station abstracts the previously stored previous m pieces of forward rate control information reported by the mobile terminal, namely, DRC<SUB>n-m</SUB>, ellipsis, DRC<SUB>n-1</SUB>; c. the base station explains the current rate control information DRC<SUB>n</SUB> reported by the mobile terminal according to the decoding of the data received by the mobile terminal in the t time slots before the current time, and the change of the currentrate control information applied by the mobile terminal; d. the forward rate control information of the mobile terminal explained by the base station is taken as the input of the dispatch algorithm toperform radio resource assignment. Through the invention method, the radio resource utilization rate is enhanced, and the resource waste is reduced.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to and utilize forward channel quality information to carry out the method for allocation of radio resources in a kind of communication system.
Background technology
In the wireless communication system, the base station sends to portable terminal by forward channels such as pilot tone, business with information, portable terminal is by measuring the generation forward channel quality information to the forward channel that receives, by backward channel these quality informations are reported the base station then, the base station utilizes these quality informations that portable terminal is carried out allocation of radio resources.
Usually, allocation of radio resources can intactly be carried out as input with the forward channel quality information of mobile terminal reporting in the base station, but become when being owing to wireless channel, variation may take place in the wireless environment when allocation of radio resources is carried out in the base station between base station and the portable terminal, if suitably do not adjust the forward channel quality information of mobile terminal reporting this moment, deviation will appear during allocation of radio resources, thus the valuable Radio Resource of waste.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of utilizing forward channel quality information to carry out allocation of radio resources at the above-mentioned defective of prior art existence, by the situation of change of base station according to wireless environment, adjust the forward channel quality information of mobile terminal reporting, and utilize adjusted information to carry out allocation of radio resources.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of method of utilizing forward channel quality information to carry out allocation of radio resources comprises step:
A: the base station sends forward channel, and portable terminal generates forward direction rate control information DRC
nAnd report the base station;
B: preceding m forward direction rate control information, i.e. DRC of the above-mentioned mobile terminal reporting of preserving before extract the base station
N-m..., DRC
N-1
C: the base station is according to the situation of change of the forward direction rate control information of the decoding situation of these portable terminal reception data in t time slot before the current time and this portable terminal application forward direction rate control information DRC to this mobile terminal reporting
nMake an explanation;
D: the forward direction rate control information of the portable terminal after the base station will be explained carries out allocation of radio resources as the input of dispatching algorithm.
Wherein, among the described step c, the base station has to this portable terminal and sends data and when successfully being decoded in advance by this portable terminal, as if DRC in t time slot before the current time
N-m＜=...＜=DRC
n, DRC
n＞=Rate
HARQ, Rate wherein
HARQFor portable terminal receives forward data in t time slot before the corresponding max rate levels in back takes place to end in advance, then the base station is with the forward direction rate control information of the current application of portable terminal being higher than of being interpreted as stipulating in the standard and approach DRC most
nSpeed grade, and enter steps d.
Wherein, among the described step c, the base station has to this portable terminal and sends data and when successfully being decoded in advance by this portable terminal, as if DRC in t time slot before the current time
N-m＜=...＜=DRC
n, DRC
n＜Rate
HARQ, Rate wherein
HARQFor portable terminal is receiving the max rate levels that the back correspondence takes place to end in advance forward data in t time slot before, then the base station is interpreted as Rate with the forward direction rate control information of the current application of portable terminal
HARQ, and enter steps d.
Wherein, among the described step c, when the base station does not send data to this portable terminal in t time slot before the current time, as if DRC
N-m＜=...＜=DRC
nAnd DRC
nLess than the flank speed grade of stipulating in the standard, then the base station is with the forward direction rate control information of the current application of portable terminal being higher than of being interpreted as stipulating in the standard and approach DRC most
nSpeed grade, and enter steps d.
Wherein, among the described step c, if forward direction rate control information DRC
N-m＞=...＞=DRC
nAnd DRC
nThe minimum speed limit grade of stipulating in the overgauge, then the base station is with the forward direction rate control information of the current application of portable terminal being lower than of being interpreted as stipulating in the standard and approach DRC most
nSpeed grade, and enter steps d.
Wherein, among the described step c, the base station has to this portable terminal and sends data and when successfully being decoded in advance by this portable terminal, as if DRC in t time slot before the current time
N-m＜=...＜=DRC
n, DRC
n＞=Rate
HARQ, Rate wherein
HARQFor portable terminal is receiving the max rate levels that the back correspondence takes place to end in advance forward data in t time slot before, and DRC
nBe not less than the flank speed grade of stipulating in the standard, then the base station is interpreted as DRC with the forward direction rate control information of the current application of portable terminal
n, and enter steps d.
Wherein, among the described step c, if forward direction rate control information DRC
N-m＞=...＞=DRC
nAnd DRC
nBe not more than the minimum speed limit grade of stipulating in the standard, the base station is interpreted as DRC with the forward direction rate control information of the current application of portable terminal
n, and enter steps d.
Wherein, among the described step c, when the base station does not send data to this portable terminal in t time slot before the current time, if work as forward direction rate control information DRC
N-m＜=...＜=DRC
nAnd DRC
nBe not less than the flank speed grade of stipulating in the standard, the base station is interpreted as DRC with the forward direction rate control information of the current application of portable terminal
n, and enter steps d.
The present invention has following beneficial effect:
Adopt method of the present invention, by the situation of change of base station according to wireless environment, adjust the forward channel quality information of mobile terminal reporting, utilize adjusted information to carry out allocation of radio resources then, thereby the raising wireless resource utility efficiency reduces the wasting of resources.
Description of drawings
Fig. 1 is a method flow diagram of the present invention;
Fig. 2 is applied to detail flowchart in CDMA2000 EV-DO (Evolution-DataOptimized) system for the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
The flow chart of the inventive method as shown in Figure 1 comprises step:
A: the base station sends forward channel, and portable terminal generates forward direction rate control information DRC
nAnd report the base station;
B: preceding m forward direction rate control information, i.e. DRC of the above-mentioned mobile terminal reporting of preserving before extract the base station
N-m..., DRC
N-1
C: the base station is according to the situation of change of the forward direction rate control information of the decoding situation of these portable terminal reception data in t time slot before the current time and this portable terminal application forward direction rate control information DRC to this mobile terminal reporting
nMake an explanation;
D: the forward direction rate control information of the portable terminal after the base station will be explained carries out allocation of radio resources as the input of dispatching algorithm.
CDMA2000 EV-DO is a kind of wireless tranmission techniques that aims at mobile data applications and carried out optimization, the EV-DO technology has been done to optimize and improve at aspects such as capacity, message transmission rate and wireless interconnected accesses, fl transmission adopts time division multiplexing mode, and reverse transfer adopts the code division multiplexing mode.
The present invention is in CDMA2000 EV-DO system actual moving process, portable terminal determines that according to the quality of the forward pilot that receives forward direction should be with which kind of speed grade to oneself transmission data, and give the base station by DRC (Data Rate Control) channel with this information real-time report, the base station by the dispatching algorithm decision whether at current time to the rate sending data of certain portable terminal according to its application.
Fig. 2 has described method of the present invention and has been applied in detail flowchart in the CDMA2000 EV-DO system, and step is as follows:
Step S01: the base station sends forward channel, and the portable terminal of connecting system predicts by the intensity of measuring pilot channel in the forward channel which kind of speed grade following base station should transmit data to own with, and by the DRC channel with this forward direction rate control information DRC
nReport the base station;
Step S02: the forward direction rate control information DRC of mobile terminal reporting is received in the base station
nAfter, preceding m forward direction rate control information of this mobile terminal reporting of preserving before extracting (m=2 usually), if before the current time in t the time slot (time slot=1.667ms, t=8 usually) base station have to this portable terminal and send data and successfully decoded in advance and DRC by this portable terminal
N-m＜=...＜=DRC
n, change S03 over to, if before the current time in t time slot the base station have to this portable terminal and send data and successfully decoded in advance and DRC by this portable terminal
N-m＞...＞DRC
n, change S05 over to; If before the current time in t time slot the base station not to this portable terminal transmission data and DRC
N-m＜=...＜=DRC
n, change S04 over to, if before the current time in t time slot the base station not to this portable terminal transmission data and DRC
N-m＞...＞DRC
n, changing S05 over to, the base station is predicted as DRC with the forward direction rate control information of mobile terminal MS under other situation
n, change S06 over to;
Step S03: the base station is calculated portable terminal and is being received the forward data generation corresponding max rate levels Rate in termination back in advance in t time slot before
HARQIf, DRC
n＜Rate
HARQ, then the base station is predicted as Rate with the forward direction rate control information of the current application of portable terminal
HARQ, change S06 over to, if DRC
n＞=Rate
HARQ, change S04 over to;
Step S04: if the forward direction rate control information DRC of mobile terminal reporting is received in the base station
nDo not reach the flank speed grade of stipulating in the standard, then the base station is predicted as the forward direction rate control information of the current application of mobile terminal MS being higher than of stipulating in the standard and approaches DRC most
nSpeed grade, otherwise the base station is predicted as DRC with the forward direction rate control information of mobile terminal MS
n, change S06 over to;
Step S05: if the forward direction rate control information DRC that mobile terminal MS reports is received in the base station
nThe minimum speed limit grade of stipulating in the overgauge, then the base station is predicted as the forward direction rate control information of the current application of mobile terminal MS being lower than of stipulating in the standard and approaches DRC most
nSpeed grade, otherwise the base station is predicted as DRC with the forward direction rate control information of mobile terminal MS
n, change S06 over to;
Step S06: the forward direction rate control information of the portable terminal after the base station will be predicted is as the input of dispatching algorithm, and dispatching algorithm operation back determines which portable terminal service next time slot gives, and changes S01 over to.
Below in conjunction with specific embodiment, further elaborate:
Suppose to have six kinds of speed grade { 10,20,30,40,50,60} (unit: kbps), if speed is 40 in the forward direction rate control information of the current application of portable terminal, and Shen Qing forward direction rate control information is 20,30 before, simultaneously before in 8 time slots portable terminal the situation that forward data is decoded does not in advance take place, then the base station is predicted as 50 and the input scheduling algorithm with the forward direction rate control information of the current application of portable terminal; If speed is 40 in the forward direction rate control information of the current application of portable terminal, and Shen Qing forward direction rate control information is 60,50 before, simultaneously in 8 time slots portable terminal the situation that forward data is decoded does not in advance take place, then the base station is predicted as 30 and the input scheduling algorithm with the forward direction rate control information of the current application of portable terminal; If speed is 30 in the forward direction rate control information of the current application of portable terminal, and Shen Qing forward direction rate control information is 20,20 before, simultaneously in 8 time slots portable terminal have and situation that forward data decodes in advance take place and the rate corresponding grade is 60 when obtaining to end in advance by calculating, then the base station is predicted as 60 and the input scheduling algorithm with the forward direction rate control information of the current application of portable terminal; If speed is 40 in the forward direction rate control information of the current application of portable terminal, and Shen Qing forward direction rate control information is 10,20 before, simultaneously in 8 time slots portable terminal have and situation that forward data decodes in advance take place and the rate corresponding grade is 30 when obtaining to end in advance by calculating, then the base station is predicted as 50 and the input scheduling algorithm with the forward direction rate control information of the current application of portable terminal.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1, a kind of method of utilizing forward channel quality information to carry out allocation of radio resources is characterized in that, comprises step:
A: the base station sends forward channel, and portable terminal generates forward direction rate control information DRC
nAnd report the base station;
B: preceding m forward direction rate control information, i.e. DRC of the above-mentioned mobile terminal reporting of preserving before extract the base station
N-m..., DRC
N-1
C: the base station is according to the situation of change of the forward direction rate control information of the decoding situation of these portable terminal reception data in t time slot before the current time and this portable terminal application forward direction rate control information DRC to this mobile terminal reporting
nMake an explanation;
D: the forward direction rate control information of the portable terminal after the base station will be explained carries out allocation of radio resources as the input of dispatching algorithm.
2, utilize forward channel quality information to carry out the method for allocation of radio resources according to claim 1, it is characterized in that, among the described step c, the base station has to this portable terminal and sends data and when successfully being decoded in advance by this portable terminal, as if DRC in t time slot before the current time
N-m＜=...＜=DRC
n, DRC
n＞=Rate
HARQ, Rate wherein
HARQFor portable terminal receives forward data in t time slot before the corresponding max rate levels in back takes place to end in advance, then the base station is with the forward direction rate control information of the current application of portable terminal being higher than of being interpreted as stipulating in the standard and approach DRC most
nSpeed grade, and enter steps d.
3, utilize forward channel quality information to carry out the method for allocation of radio resources according to claim 1, it is characterized in that, among the described step c, the base station has to this portable terminal and sends data and when successfully being decoded in advance by this portable terminal, as if DRC in t time slot before the current time
N-m＜=...＜=DRC
n, DRC
n＜Rate
HARQ, Rate wherein
HARQFor portable terminal is receiving the max rate levels that the back correspondence takes place to end in advance forward data in t time slot before, then the base station is interpreted as Rate with the forward direction rate control information of the current application of portable terminal
HARQ, and enter steps d.
4, utilize forward channel quality information to carry out the method for allocation of radio resources according to claim 1, it is characterized in that, among the described step c, when the base station does not send data to this portable terminal in t time slot before the current time, as if DRC
N-m＜=...＜=DRC
nAnd DRC
nLess than the flank speed grade of stipulating in the standard, then the base station is with the forward direction rate control information of the current application of portable terminal being higher than of being interpreted as stipulating in the standard and approach DRC most
nSpeed grade, and enter steps d.
5, utilize forward channel quality information to carry out the method for allocation of radio resources according to claim 1, it is characterized in that, among the described step c, if forward direction rate control information DRC
N-m＞...＞DRC
nAnd DRC
nThe minimum speed limit grade of stipulating in the overgauge, then the base station is with the forward direction rate control information of the current application of portable terminal being lower than of being interpreted as stipulating in the standard and approach DRC most
nSpeed grade, and enter steps d.
6, utilize forward channel quality information to carry out the method for allocation of radio resources according to claim 1, it is characterized in that, among the described step c, the base station has to this portable terminal and sends data and when successfully being decoded in advance by this portable terminal, as if DRC in t time slot before the current time
N-m＜=...＜=DRC
n, DRC
n＞=Rate
HARQ, Rate wherein
HARQFor portable terminal is receiving the max rate levels that the back correspondence takes place to end in advance forward data in t time slot before, and DRC
nBe not less than the flank speed grade of stipulating in the standard, then the base station is interpreted as DRC with the forward direction rate control information of the current application of portable terminal
n, and enter steps d.
7, utilize forward channel quality information to carry out the method for allocation of radio resources according to claim 1, it is characterized in that, among the described step c, if forward direction rate control information DRC
N-m＞...＞DRC
nAnd DRC
nBe not more than the minimum speed limit grade of stipulating in the standard, the base station is interpreted as DRC with the forward direction rate control information of the current application of portable terminal
n, and enter steps d.
8, utilize forward channel quality information to carry out the method for allocation of radio resources according to claim 1, it is characterized in that, among the described step c, when the base station does not send data to this portable terminal in t time slot before the current time, if work as forward direction rate control information DRC
N-m＜=...＜=DRC
nAnd DRC
nBe not less than the flank speed grade of stipulating in the standard, the base station is interpreted as DRC with the forward direction rate control information of the current application of portable terminal
n, and enter steps d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710072867A CN100589630C (en) | 2007-01-17 | 2007-01-17 | Method for performing wireless resource allocation using forward channel quality information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710072867A CN100589630C (en) | 2007-01-17 | 2007-01-17 | Method for performing wireless resource allocation using forward channel quality information |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101141773A CN101141773A (en) | 2008-03-12 |
| CN100589630C true CN100589630C (en) | 2010-02-10 |
Family
ID=39193452
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710072867A Expired - Fee Related CN100589630C (en) | 2007-01-17 | 2007-01-17 | Method for performing wireless resource allocation using forward channel quality information |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685800B (en) * | 2012-04-20 | 2015-06-17 | 大唐移动通信设备有限公司 | Inquiry method, device and system for receiving quality of downlink channel of terminal |
| CN111372190B (en) * | 2020-01-23 | 2021-11-02 | 鹏城实验室 | Machine learning model, method, device and storage medium for mobile terminal location tracking |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337136A (en) * | 1999-01-15 | 2002-02-20 | 高通股份有限公司 | Method and apparatus for variable and fixed forward link rate control in a mobile radio communication system |
| CN1383636A (en) * | 2000-06-24 | 2002-12-04 | 三星电子株式会社 | Method and appts. for transmitting data rate control information in mobile telecommunication system for packet data transmission |
| EP1458204A1 (en) * | 2000-08-29 | 2004-09-15 | Matsushita Electric Industrial Co., Ltd. | Base station apparatus and radio communication method |
| CN1753330A (en) * | 2004-09-22 | 2006-03-29 | 北京三星通信技术研究有限公司 | Strengthen the method for data rate control feedback in the mobile communication system |
-
2007
- 2007-01-17 CN CN200710072867A patent/CN100589630C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337136A (en) * | 1999-01-15 | 2002-02-20 | 高通股份有限公司 | Method and apparatus for variable and fixed forward link rate control in a mobile radio communication system |
| CN1383636A (en) * | 2000-06-24 | 2002-12-04 | 三星电子株式会社 | Method and appts. for transmitting data rate control information in mobile telecommunication system for packet data transmission |
| EP1458204A1 (en) * | 2000-08-29 | 2004-09-15 | Matsushita Electric Industrial Co., Ltd. | Base station apparatus and radio communication method |
| CN1753330A (en) * | 2004-09-22 | 2006-03-29 | 北京三星通信技术研究有限公司 | Strengthen the method for data rate control feedback in the mobile communication system |
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|---|---|
| CN101141773A (en) | 2008-03-12 |
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