CN101277174A - Method and apparatus for data retransmission based on service quality as well as radio communication system - Google Patents
Method and apparatus for data retransmission based on service quality as well as radio communication system Download PDFInfo
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- CN101277174A CN101277174A CNA2007100906730A CN200710090673A CN101277174A CN 101277174 A CN101277174 A CN 101277174A CN A2007100906730 A CNA2007100906730 A CN A2007100906730A CN 200710090673 A CN200710090673 A CN 200710090673A CN 101277174 A CN101277174 A CN 101277174A
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Abstract
The invention provides a date retransmission method based on service quality, a method using the same and a wireless communication system which belongs to communication technique field. The method includes: setting threshold of service quality QoS parameter, comparing parameter requirement of QoS to date with set parameter threshold, processing date retransmission for various QoS parameter requirement date by using corresponding retransmission date according with compared result. The invention combines date retransmission with date QoS requirement, uses corresponding optimal retransmission flow for various QoS requirement date, thus, system performance is optimized in condition of no-increasing system complexity.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of data retransmission method and device and wireless communication system based on QoS (Quality of Service, service quality).
Background technology
Along with development of Communication Technique, how to cut operating costs, improve the transmission rate of data, and satisfy the requirement of QoS business datum, become the thing that receives much concern.For example, UMTS (UniversalMobile Telecommunication System, universal mobile telecommunications system) be to adopt WCDMA (WideBand Code Division Multiple Access, the Wideband Code Division Multiple Access (WCDMA) access) 3-G (Generation Three mobile communication system) of air interface, in order to guarantee 3GPP (The third Generation Partnership Project, third generation partner program) wireless access technology is in the competitiveness of a few years from now on or longer time, 3GPP TSG (Technical Specification Group, the technical specification tissue) RAN (Radio Access Network, wireless access network) passed through LTE (Long Term Evolution in the 26th meeting, Long Term Evolution), the target of this Long Term Evolution comprises: the time delay of reduction, higher user data rate, improved power system capacity and covering, and for the cost of operator's reduction.
In the UMTS system, all support AM (Acknowledge Mode, affirmation mode) business between transmitting terminal and the receiving terminal, promptly transmitting terminal and receiving terminal all support RLC (Radio Link Control, Radio Link control) to retransmit.The UMTS system realizes that the rlc layer retransmission processes in the AM business procedure comprises: RLC PDU (the Protocol Data Unit that transmitting terminal is good with division cascade, protocol Data Unit) sends into MAC (Media Access Control, media interviews control) layer, and RLC PDU buffer memory got up, wait for the correct confirmation of receipt of receiving terminal, receiving terminal sorts to RLCPDU according to sequence number after receiving RLC PDU, and sorted RLC PDU is sent into high level successively; Receiving terminal triggers according to certain principle and generates status report, then status report is sent to transmitting terminal; Transmitting terminal is deleted the correct RLC PDU that receives of receiving terminal according to its status report that receives from buffer memory, do not have the correct RLC PDU that receives to be retransmitted to receiving terminal receiving terminal.But, owing to there is not affirmation between receiving terminal and the transmitting terminal to the RLC PDU of correct reception, so the concrete numerical value of the time of transmitting terminal timer and counter is difficult to control, in the time of may causing transmitting terminal to receive status report, need the RLC PDU that retransmits deleted, thereby cause the generation of loss of data phenomenon.
In the prior art, adopt the transport layer one and the transport layer two mutual methods that retransmit of the transport layer one of transmitting terminal and transport layer two and receiving terminal, when the transport layer one of receiving terminal detects the affirmation message of reception when incorrect, the transport layer one of notice transmitting terminal retransmits; When perhaps the message of transport layer two receptions of receiving terminal was incorrect, the transport layer two of receiving terminal sent message to the transport layer two of transmitting terminal, and the transport layer two that triggers transmitting terminal retransmits, and has avoided the generation of loss of data phenomenon when retransmitting.But,, be not suitable for the data re-transmission of multiple qos requirement because retransmission processes is irrelevant with professional QoS.
Summary of the invention
The technical problem that the embodiment of the invention will solve provides a kind of quality-of-service based data retransmission method and device and wireless communication system, can take the flow process of corresponding optimization for the data that different QoS requires, and has optimized systematic function.
For solving the problems of the technologies described above, the purpose of the embodiment of the invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of quality-of-service based data retransmission method, comprising:
The thresholding of service quality QoS parameter is set;
QoS is compared the thresholding of the qos parameter of the parameter request of data and setting, carry out the re-transmission of data according to result relatively.
The embodiment of the invention provides a kind of device of quality-of-service based data re-transmission, comprises
Transmitting terminal is used to be provided with the thresholding of service quality QoS parameter, QoS is compared the thresholding of the qos parameter of the parameter request of data and setting, and carry out the re-transmission of data according to result relatively;
Receiving terminal is used for triggering the re-transmission that described transmitting terminal carries out data when transmitting terminal does not receive the error in data of data or reception; And the data of receiving end/sending end transmission.
The embodiment of the invention also provides a kind of wireless communication system, comprising:
Transmitting terminal is used to be provided with the thresholding of service quality QoS parameter, QoS is compared the thresholding of the qos parameter of the parameter request of data and setting, and carry out the re-transmission of data according to result relatively;
Receiving terminal is used for triggering the re-transmission that described transmitting terminal carries out data when transmitting terminal does not receive the error in data of data or reception; And the data of receiving end/sending end transmission.
Above technical scheme as can be seen, because the embodiment of the invention has set in advance the thresholding of qos parameter, QoS is compared the threshold value of the parameter of the parameter request of data and setting, data can be divided into qos parameter requirement height or the low data of qos parameter requirement like this, take the re-transmission flow process of corresponding optimization for the data of different QoS requirement, thereby under the situation that does not increase system complexity, adopt optimum re-transmission flow process, optimized systematic function.
Description of drawings
Fig. 1 is the signaling process figure when transmitting terminal layer one number of retransmissions surpasses the upper limit or timer expiry in the embodiment of the invention one;
Fig. 2 is the signaling process figure when receiving terminal layer two data check are failed in the embodiment of the invention one;
Fig. 3 is the signaling process figure that transmitting terminal layer one and receiving terminal layer one retransmits in the embodiment of the invention three;
The device schematic diagram that Fig. 4 provides for the embodiment of the invention;
The system schematic that Fig. 5 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of quality-of-service based data repeating method and device and wireless communication system, for making purpose of the present invention, technical scheme and advantage clearer, following with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
The data repeating method based on QoS that the embodiment of the invention provides is:
The thresholding of qos parameter is set, as time-delay thresholding and Block Error Rate thresholding;
QoS is compared the thresholding of the parameter of the parameter request of data and setting, for example, QoS is compared the delay requirement of data and error block rate requirement and set threshold value, according to result relatively data are divided into: low delay requires the data of low error block rate requirement, the data that low delay requires high error block rate requirement, the data of the low error block rate requirement of high delay requirement and the data of the high error block rate requirement of high delay requirement, and adopts the corresponding retransmission flow process to carry out the re-transmission of data at each classification.
Wherein, high delay requirement is meant that the delay time in the qos requirement is shorter than set time-delay thresholding, and high error block rate requirement is meant that the Block Error Rate in the qos requirement is littler than set Block Error Rate thresholding.
Serve as that time-delay and Block Error Rate are example with the parameter among the QoS below, enumerate embodiment respectively the flow process of carrying out data re-transmission based on QoS is elaborated:
Embodiment one:
101: time-delay thresholding and Block Error Rate thresholding that QoS is set;
102: QoS is compared the time-delay thresholding of the QoS of the delay requirement of data and described setting, according to QoS the Block Error Rate thresholding of the QoS of the error block rate requirement of data and described setting is compared, data are divided into the data that low delay requires low error block rate requirement according to result relatively;
103: transmitting terminal layer one number of retransmissions surpasses the upper limit or timer expiry, show one bust this of transmitting terminal layer, send resend messages to transmitting terminal layer two, triggering transmitting terminal layer two retransmits, perhaps, during error in data that two verification of receiving terminal layer are received, send resend messages, trigger transmitting terminal layer two and retransmit to transmitting terminal layer two;
104: transmitting terminal layer two upgrades data mode tabulation in the data window, change the data mode of transmitting terminal layer one bust this into the wait re-transmission, and will combine with the message that one bust this of transmitting terminal layer requires to retransmit from the resend messages of receiving terminal layer two feedback, decision needs the data of re-transmission, and transmitting terminal layer two carries out the re-transmission of data.
Referring to Fig. 1, the signaling process figure when surpassing the upper limit or timer expiry for transmitting terminal layer one number of retransmissions in the embodiment of the invention one:
11) transmitting terminal layer two is to transmitting terminal layer one transmission data;
12) transmitting terminal layer one sends to receiving terminal layer one with these data after receiving described data;
Send resend messages to transmitting terminal layer one when 13) receiving terminal layer one receives described status report, require one re-transmission of transmitting terminal layer;
14) when the number of retransmissions of transmitting terminal layer one surpasses the upper limit or timer expiry, send resend messages to transmitting terminal layer two, require two re-transmission of transmitting terminal layer;
15) transmitting terminal layer two is to transmitting terminal layer one data retransmission;
16) the transmitting terminal layer one described data retransmission that will receive sends to receiving terminal layer one;
17) receiving terminal layer one sends acknowledge message to transmitting terminal layer one after receiving these data, and these data are sent to receiving terminal layer two;
18) receiving terminal layer two sends acknowledge message to transmitting terminal layer two after receiving these data.
Referring to Fig. 2, the signaling process figure when failing for receiving terminal layer two data check in the embodiment of the invention one:
21) transmitting terminal layer two sends data to transmitting terminal layer one;
22) the transmitting terminal layer one described data that will receive send to receiving terminal layer one;
23) receiving terminal layer one sends acknowledge message to transmitting terminal layer one, and the described data that will receive send to receiving terminal layer two;
24) receiving terminal layer two verification data failure send resend messages to transmitting terminal layer two;
25) transmitting terminal layer two is to transmitting terminal layer one data retransmission;
26) the transmitting terminal layer one described data that will receive send to receiving terminal layer one;
27) receiving terminal layer one sends acknowledge message to transmitting terminal layer one, and the described data that will receive send to receiving terminal layer two;
When 28) receiving terminal layer two receives correct data, send acknowledge message to transmitting terminal layer two.
Embodiment two:
Time-delay thresholding and the Block Error Rate thresholding of QoS are set; QoS is compared the time-delay thresholding of the QoS of the delay requirement of data and setting, according to QoS the Block Error Rate thresholding of the QoS of the error block rate requirement of data and setting is compared, according to result relatively data are divided into: low delay requires the data of high error block rate requirement, compare with embodiment one, the number of retransmissions of bigger transmitting terminal layer one and longer timer are set, increase the possible number of retransmissions of transmitting terminal layer one, the window of relative transmitting terminal layer one of the window of transmitting terminal layer two and receiving terminal layer two and receiving terminal layer one is set to a bigger numerical value, and signaling process is identical with embodiment's one.
Embodiment three:
301: time-delay thresholding and Block Error Rate thresholding that QoS is set;
302: QoS is compared the time-delay thresholding of the QoS of the delay requirement of data and setting, according to QoS the Block Error Rate thresholding of the error block rate requirement of data and set QoS is compared, data are divided into the data of the low error block rate requirement of high delay requirement according to result relatively;
303: when the number of times that retransmits to transmitting terminal layer two when transmitting terminal layer one surpassed the upper limit or timer expiry, transmitting terminal layer one still retransmitted these data, returns acknowledge message up to receiving terminal layer one.
Referring to Fig. 3, be the signaling process figure of transmitting terminal layer one in the embodiment of the invention three and one re-transmission of receiving terminal layer:
31) transmitting terminal layer one sends data to receiving terminal layer one;
32) receiving terminal layer one returns resend messages to transmitting terminal layer one, requires one re-transmission of transmitting terminal layer;
33) number of retransmissions when transmitting terminal layer one surpasses the upper limit or timer expiry, and transmitting terminal layer one sends data to receiving terminal layer one again;
34) when receiving terminal layer one when transmitting terminal layer one receives correct data, return acknowledge message to transmitting terminal layer one.
Embodiment four:
401: time-delay and Block Error Rate thresholding that QoS is set;
402: time-delay thresholding among the QoS of the delay requirement of QoS institute data and described setting is compared, compare according to Block Error Rate thresholding among the QoS of error block rate requirement among the QoS and described setting, data are divided into the data of the high error block rate requirement of high delay requirement according to result relatively;
403: when transmitting terminal layer one when receiving terminal layer one sends data failure, send resend messages to transmitting terminal layer two;
404: when transmitting terminal layer two receives described resend messages, carry out the re-transmission of data.
The installation drawing that the embodiment of the invention is provided is described below:
Referring to Fig. 4, be the device schematic diagram that the embodiment of the invention provides, this device comprises: threshold setting unit 501, comparing unit 502, data re-transmission unit 503;
Comparing unit 502 when being used for receiving the parameter thresholding of setting from threshold setting unit 501, compares QoS to the parameter request of data and set parameter thresholding.
Wherein, described comparing unit 502 comprises comparison subelement 504 and classification subelement 505;
Described relatively subelement 504 is used for QoS being compared with the time-delay thresholding is set the delay requirement of data when threshold setting unit 501 receives the thresholding of described parameter, and QoS is compared the error block rate requirement of data and the Block Error Rate thresholding of setting;
Described classification subelement 505, be used for the comparison carried out according to described relatively subelement 504, data are divided into: low delay requires the data of low error block rate requirement, the data that low delay requires high error block rate requirement, the data of the low error block rate requirement of high delay requirement and the data of the high error block rate requirement of high delay requirement.
Be that time delay thresholding and Block Error Rate thresholding are example with the qos parameter thresholding that is provided with below, at the specific category that classification subelement 505 divides data, the re-transmission flow process that data re-transmission unit 503 adopts is elaborated:
(1) described data are divided into the data of the low error block rate requirement of low delay requirement when described classification subelement 505, when perhaps low delay required data that the high mistake rate of determining requires, data re-transmission unit 503 comprised:
Transmitting terminal layer one is used for working as timer expiry or number of retransmissions and surpasses last prescribing a time limit, and sends resend messages;
Transmitting terminal layer two, be used for when described transmitting terminal layer one receives resend messages, upgrade data mode tabulation in the data window, change the data mode of described transmitting terminal layer one bust this into the wait re-transmission, and the status report that feeds back from receiving terminal combines with the report of described transmitting terminal layer one bust this, decision needs the data of re-transmission, carries out data re-transmission.
(2) described data are divided into when described classification subelement 505: during the low error block rate requirement data of high delay requirement, data re-transmission unit 503 comprises:
Transmitting terminal layer one is used for working as timer expiry or number of retransmissions and surpasses last prescribing a time limit, and described transmitting terminal layer one retransmits described data;
(3) described data are divided into when described classification subelement 505: during the high error block rate requirement data of high delay requirement, data re-transmission unit 503 comprises:
Transmitting terminal layer one is used for working as timer expiry or number of retransmissions and surpasses last prescribing a time limit, and sends resend messages;
Transmitting terminal layer two is used for directly carrying out the re-transmission of data when described transmitting terminal layer one receives resend messages.
Referring to Fig. 5, the system schematic that provides for the embodiment of the invention:
A kind of wireless communication system that the embodiment of the invention provides comprises:
Transmitting terminal 601 is used to be provided with the thresholding of service quality QoS parameter, QoS is compared the thresholding of the qos parameter of the parameter request of data and setting, and carry out the re-transmission of data according to result relatively;
Receiving terminal 602 is used for triggering the re-transmission that described transmitting terminal carries out data when transmitting terminal does not receive the error in data of data or reception; And the data of receiving end/sending end transmission.
Wherein, transmitting terminal 601 comprises transmitting terminal layer one and transmitting terminal layer two; Receiving terminal 602 comprises receiving terminal layer one and receiving terminal layer two.
Thresholding with the described qos parameter that is provided with is that time delay thresholding and Block Error Rate thresholding are example below, and at comparative result, the re-transmission flow process that transmitting terminal 601 and receiving terminal 602 adopt is elaborated:
(1): data are divided into: low delay requires the data of low error block rate requirement according to result relatively, when perhaps low delay requires the data of high error block rate requirement:
Receiving terminal layer one is used for being forwarded to described receiving terminal layer two when described transmitting terminal layer one receives correct data, when described transmitting terminal layer one receives misdata, sends resend messages to described transmitting terminal layer one, triggers described transmitting terminal layer one re-transmission;
Transmitting terminal layer one is used for working as timer expiry or number of retransmissions and surpasses last prescribing a time limit, and sends resend messages to described transmitting terminal layer two, triggers described transmitting terminal layer two re-transmission;
Receiving terminal layer two when being used for checking data bag mistake, sends resend messages to described transmitting terminal layer two, triggers described transmitting terminal layer two re-transmission;
Transmitting terminal layer two, be used for upgrading the tabulation of data window data mode, change the data mode of described transmitting terminal layer one bust this into the wait re-transmission, and the status report that feeds back from described receiving terminal layer two combines with the report of described transmitting terminal layer one bust this, decision needs the data of re-transmission, carries out data re-transmission.
(2): data are divided into: when high delay requirement hangs down the data of error block rate requirement according to result relatively:
Transmitting terminal layer one is used for sending data to described receiving terminal layer one, when timer expiry or number of retransmissions surpass last in limited time, described transmitting terminal layer one retransmits described data;
Receiving terminal layer one is used for when described transmitting terminal layer one receives correct data, sends acknowledge message, when described transmitting terminal layer one receives misdata, sends resend messages to described transmitting terminal layer one, triggers described transmitting terminal layer one re-transmission.
(3): data are divided into: during the data of the high error block rate requirement of high delay requirement according to relatively result:
Receiving terminal layer one is used for being forwarded to described receiving terminal layer two when described transmitting terminal layer one receives correct data, when described transmitting terminal layer one receives misdata, sends resend messages to described transmitting terminal layer one, triggers described transmitting terminal layer one re-transmission;
Transmitting terminal layer one is used for working as timer expiry or number of retransmissions and surpasses last prescribing a time limit, and sends resend messages to described transmitting terminal layer two, triggers described transmitting terminal layer two re-transmission;
Receiving terminal layer two when being used for checking data bag mistake, sends resend messages to described transmitting terminal layer two, triggers described transmitting terminal layer two re-transmission;
Transmitting terminal layer two is used for directly carrying out the re-transmission of data when described layer one receiving terminal or described receiving terminal layer two receive resend messages.
Wherein, high delay requirement is meant that the delay time in the qos requirement is shorter than set time-delay thresholding, and high error block rate requirement is meant that the Block Error Rate in the qos requirement is littler than set Block Error Rate thresholding.
Above embodiment as can be seen, because the embodiment of the invention is provided with the qos parameter thresholding, QoS is compared the parameter request of data and set threshold value, and according to result relatively, take the re-transmission flow process of corresponding optimization for the data of different QoS requirement, thereby under the situation that does not increase system complexity, adopt optimum re-transmission flow process, optimized systematic function.
More than a kind of quality-of-service based data repeating method provided by the present invention and device thereof and wireless communication system are described in detail, having used specific case herein sets forth principle of the present invention and execution mode, simultaneously, for one of ordinary skill in the art, part in specific embodiments and applications all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (12)
1. a quality-of-service based data retransmission method is characterized in that, comprising:
The thresholding of service quality QoS parameter is set;
QoS is compared the thresholding of the qos parameter of the parameter request of data and setting, carry out the re-transmission of data according to result relatively.
2. method according to claim 1 is characterized in that, described parameter is time-delay and/or Block Error Rate.
3. method according to claim 2 is characterized in that, described parameter is time-delay and Block Error Rate;
Described QoS is compared further the thresholding of the qos parameter of the parameter request of data and setting comprises: with QoS to the delay requirement of data with the time-delay thresholding be set compare, QoS is compared the error block rate requirement of data and the Block Error Rate thresholding of setting, data is divided into:
Low delay requires the data of low error block rate requirement, the data that low delay requires high error block rate requirement, the data of the low error block rate requirement of high delay requirement and the data of the high error block rate requirement of high delay requirement.
4. method according to claim 3, it is characterized in that, when described data were hanged down the data of error block rate requirement for the low delay requirement, when perhaps low delay required the data of high error block rate requirement, the re-transmission that described result according to comparison carries out data further comprised:
When timer expiry or number of retransmissions surpass last in limited time, transmitting terminal layer one sends resend messages to transmitting terminal layer two; Perhaps, during receiving terminal layer two verification packet error, send resend messages to described transmitting terminal layer two;
Described transmitting terminal layer two upgrades data mode tabulation in the data window, change the data mode of transmitting terminal layer one bust this into the wait re-transmission, and the status report that feeds back from described receiving terminal layer two combines with the report of described transmitting terminal layer one bust this, decision needs the data of re-transmission, and described transmitting terminal layer two carries out data re-transmission.
5. method according to claim 3 is characterized in that, when described data were the data of the low error block rate requirement of high delay requirement, the re-transmission that described result according to comparison carries out data further comprised:
Transmitting terminal layer one sends data to receiving terminal layer one, and described transmitting terminal layer one works as timer expiry or number of retransmissions surpasses last prescribing a time limit, and described transmitting terminal layer one retransmits described data.
6. method according to claim 3 is characterized in that, when described data were the data of the high error block rate requirement of high delay requirement, the re-transmission that described result according to comparison carries out data further comprised:
Transmitting terminal layer one transmission data failure sends resend messages to transmitting terminal layer two, and described transmitting terminal layer two directly retransmits described data.
7. a wireless communication system is characterized in that, comprising:
Transmitting terminal is used to be provided with the thresholding of service quality QoS parameter, QoS is compared the thresholding of the qos parameter of the parameter request of data and setting, and carry out the re-transmission of data according to result relatively;
Receiving terminal is used for triggering the re-transmission that described transmitting terminal carries out data when transmitting terminal does not receive the error in data of data or reception; And the data of receiving end/sending end transmission.
8. the device of a quality-of-service based data re-transmission is characterized in that, comprising:
The threshold setting unit is used to be provided with the thresholding of service quality QoS parameter;
Comparing unit is used for when the threshold setting unit receives the thresholding of described parameter, and QoS is compared the thresholding of the qos parameter of the parameter request of data and setting;
The data re-transmission unit, be used for from comparing unit receive comparison as a result the time, take the corresponding retransmission flow process according to relatively result for the data that different QoS requires, carry out the re-transmission of data.
9. device according to claim 8 is characterized in that, described comparing unit comprises comparison subelement and classification subelement;
Described relatively subelement is used for QoS being compared with the time-delay thresholding is set the delay requirement of data when described threshold setting unit receives the thresholding of described parameter, and QoS is compared the error block rate requirement of data and the Block Error Rate thresholding of setting;
Described classification subelement, be used for the comparison carried out according to described relatively subelement, data are divided into: low delay requires the data of low error block rate requirement, the data that low delay requires high error block rate requirement, the data of the low error block rate requirement of high delay requirement and the data of the high error block rate requirement of high delay requirement.
10. device according to claim 9 is characterized in that, when described classification subelement is divided into the data of the low error block rate requirement of low delay requirement with described data, when perhaps low delay required the data of high error block rate requirement, described data re-transmission unit comprised:
Transmitting terminal layer one is used for working as timer expiry or number of retransmissions and surpasses last prescribing a time limit, and sends resend messages;
Transmitting terminal layer two, be used for when described transmitting terminal layer one receives described resend messages, upgrade data mode tabulation in the data window, change the data mode of described transmitting terminal layer one bust this into the wait re-transmission, and the status report that feeds back from receiving terminal combines with the report of described transmitting terminal layer one bust this, decision needs the data of re-transmission, carries out data re-transmission.
11. device according to claim 9 is characterized in that, when described classification subelement is divided into described data: when high delay requirement hanged down the data of error block rate requirement, described data re-transmission unit comprised:
Transmitting terminal layer one is used for working as timer expiry or number of retransmissions and surpasses last prescribing a time limit, and described transmitting terminal layer one retransmits described data;
12. device according to claim 9 is characterized in that, when described classification subelement is divided into described data: during the data of the high error block rate requirement of high delay requirement, described data re-transmission unit comprises:
Transmitting terminal layer one is used for working as timer expiry or number of retransmissions and surpasses last prescribing a time limit, and sends resend messages;
Transmitting terminal layer two is used for directly carrying out the re-transmission of data when described transmitting terminal layer one receives resend messages.
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| CNA2007100906730A CN101277174A (en) | 2007-03-30 | 2007-03-30 | Method and apparatus for data retransmission based on service quality as well as radio communication system |
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| CNA2007100906730A CN101277174A (en) | 2007-03-30 | 2007-03-30 | Method and apparatus for data retransmission based on service quality as well as radio communication system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102461319A (en) * | 2009-06-22 | 2012-05-16 | 高通股份有限公司 | Selecting a quality of service class identifier for a bearer |
| CN104901782A (en) * | 2014-03-05 | 2015-09-09 | 中兴通讯股份有限公司 | Method and device for transmitting and receiving broadcasting service data |
| CN108365924A (en) * | 2017-01-26 | 2018-08-03 | 华为技术有限公司 | A kind of data repeating method, communication device |
| CN109327289A (en) * | 2017-07-31 | 2019-02-12 | 普天信息技术有限公司 | A kind of data package retransmission method and device |
| CN109788509A (en) * | 2017-11-15 | 2019-05-21 | 华为技术有限公司 | The bypassing method and device of continuous data packet transmission failure |
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2007
- 2007-03-30 CN CNA2007100906730A patent/CN101277174A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102461319A (en) * | 2009-06-22 | 2012-05-16 | 高通股份有限公司 | Selecting a quality of service class identifier for a bearer |
| US8873381B2 (en) | 2009-06-22 | 2014-10-28 | Qualcomm Incorporated | Bearer quality of service selection |
| CN102461319B (en) * | 2009-06-22 | 2014-12-24 | 高通股份有限公司 | Selecting a quality of service class identifier for a bearer |
| CN104901782A (en) * | 2014-03-05 | 2015-09-09 | 中兴通讯股份有限公司 | Method and device for transmitting and receiving broadcasting service data |
| CN108365924A (en) * | 2017-01-26 | 2018-08-03 | 华为技术有限公司 | A kind of data repeating method, communication device |
| CN108365924B (en) * | 2017-01-26 | 2021-02-12 | 华为技术有限公司 | Data retransmission method and communication device |
| US11082166B2 (en) | 2017-01-26 | 2021-08-03 | Huawei Technologies Co., Ltd. | Data retransmission method and communications apparatus |
| CN109327289A (en) * | 2017-07-31 | 2019-02-12 | 普天信息技术有限公司 | A kind of data package retransmission method and device |
| CN109327289B (en) * | 2017-07-31 | 2021-08-20 | 普天信息技术有限公司 | Data packet retransmission method and device |
| CN109788509A (en) * | 2017-11-15 | 2019-05-21 | 华为技术有限公司 | The bypassing method and device of continuous data packet transmission failure |
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Open date: 20081001 |