CN101150453A - Processing method for error detection of mixed automatic retransfer request entities - Google Patents
Processing method for error detection of mixed automatic retransfer request entities Download PDFInfo
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- CN101150453A CN101150453A CNA2006101529893A CN200610152989A CN101150453A CN 101150453 A CN101150453 A CN 101150453A CN A2006101529893 A CNA2006101529893 A CN A2006101529893A CN 200610152989 A CN200610152989 A CN 200610152989A CN 101150453 A CN101150453 A CN 101150453A
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- repeat requests
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Abstract
The invention discloses a method for detecting and handling errors of mixed automatic re-transmission request body aiming at the problem in the prior art in which a transmitting end ARQ body receives redundant LOCALNACK information due to a receiving end HARQ body feeding back unnecessary NACK -> ACK error indication information to a transmitting end HARQ body. The invention also includes the following steps: (1) as for data packet which is not the last or not separated, in case that transmission blocks terminate transmission without reaching the maximal number of re-transmission failures, a mixed automatic re-transmission request body at the receiving end sends error indication messages to a mixed automatic re-transmission request body at the transmitting end; (2) the mixed automatic re-transmission request body at the transmitting end judges whether the error indication messages are redundant messages; if the error indication messages are redundant messages, the messages are rejected; otherwise, the transmission blocks of the mixed automatic re-transmission request body at the transmitting end are notified to have errors in transportation. The invention reduces the transmission probability of redundant messages and saves system resources.
Description
Technical field
The present invention relates to the digital mobile communication technical field, particularly mix the processing method for error detection of automatic repeat requests HARQ in the wireless communication system.
Background technology
The automatic repeat requests entity A RQ of 3G (Third Generation) Moblie long evolving system is positioned at the wireless chain control layer RLC of base station, mixes media access control layer MAC and physical layer PHY that automatic repeat requests entity HARQ is positioned at the base station.The Basic Transmission Unit of ARQ entity is protocol Data Unit RLC PDU, and the Basic Transmission Unit of HARQ entity is transmission block TB.
The processing scheme of HARQ entity is in the prior art:
When transmitting terminal HARQ entity is abandoned retransmitting for the transmission block repeating transmission failure maximum times of receiving NACK message or according to scheduling result, to transmitting terminal ARQ entity feedback LOCALNACK message;
NACK-〉the ACK mistake refers to that transmitting terminal HARQ entity mistake is missed the NACK message of receiving terminal HARQ entity feedback and is received as ACK message.If do not receive that at scheduling interval next time the redundancy versions of re-transmission receives new transmission block TB on the contrary after the receiving terminal HARQ entity feedback NACK message, or in the end under bag data or the independent packet situation, receiving terminal HARQ entity is not received the redundancy versions of re-transmission yet behind Preset Time, NACK-has then taken place〉the ACK mistake.Receiving terminal HARQ entity detection is to NACK-〉during the ACK mistake, to transmitting terminal HARQ entity feedback NACK-〉ACK mistake Indication message, comprise frame number, the system time of bust this in the message, also comprise the HARQ process identification (PID) for asynchronous HARQ; Transmitting terminal HARQ entity feeds back LOCALNACK message to transmitting terminal ARQ entity after receiving this message.The problem that this scheme exists is: when transmitting terminal HARQ entity failure maximum number of retransmissions, receiving terminal HARQ entity may detect and be NACK-〉the ACK mistake, thereby cause receiving terminal HARQ entity to the unnecessary NACK-of transmitting terminal HARQ entity feedback〉ACK mistake Indication message; When perhaps transmitting terminal HARQ entity is abandoned retransmitting according to scheduling result, receiving terminal HARQ entity may detect and be NACK-〉the ACK mistake, to transmitting terminal HARQ entity feedback NACK-〉ACK mistake Indication message, cause transmitting terminal HARQ entity to the unnecessary LOCALNACK message of transmitting terminal ARQ entity feedback.At this problem, following method is arranged: when transmitting terminal HARQ entity sends new transmission block TB to receiving terminal HARQ entity in the prior art, comprise the reason indicating bit in the control information, explanation is because of the ACK message of receiving a transmission block TB or because abandon retransmitting a transmission block TB, owing to each transmission of transmission block newly all will add this reason indicating bit, the overhead that brings is bigger.
Summary of the invention
Defective and deficiency at prior art exists the invention provides a kind of processing method for error detection that mixes automatic repeat requests entity.Under the situation for non-last bag data or non-independent packet, receiving terminal HARQ entity does not retransmit the failure maximum times and just stops the transmission block that transmits at reaching, may feed back unnecessary NACK-to transmitting terminal HARQ entity〉ACK mistake Indication message, and cause transmitting terminal HARQ entity to send the problem of redundant LOCAL NACK message to transmitting terminal ARQ entity.
In order to reach the foregoing invention purpose, the present invention mixes the processing method for error detection of automatic repeat requests entity, may further comprise the steps:
(1) under the situation for non-last packet or non-independent packet, receiving terminal mixes automatic repeat requests entity and does not retransmit the failure maximum times and just stop the transmission block that transmits at reaching, and mixes automatic repeat requests entity to transmitting terminal and sends wrong Indication message;
(2) transmitting terminal mixes automatic repeat requests entity and judges whether this mistake Indication message is redundancy message, is then to abandon; Otherwise the transmission of the described transmission block of the notice automatic repeat requests entity of transmitting terminal makes a mistake.
Wherein, described step (1) comprising:
(11) receiving terminal mixes automatic repeat requests entity at receiving wrong last transmission block after transmitting terminal mixes automatic repeat requests entity feedback NACK message, receives that transmitting terminal mixes the new transmission block that automatic repeat requests entity sends;
(12) receiving terminal mixes automatic repeat requests entity the NACK message of being fed back is counted, judging whether self has reached re-transmission failure maximum times to the feedback NACK message number of times of previous transmission block, is then not mix automatic repeat requests entity feedback error Indication message to transmitting terminal; Otherwise mix automatic repeat requests entity feedback error Indication message to transmitting terminal.
Wherein, described step (2) comprising:
(21) transmitting terminal mixes automatic repeat requests entity and judges whether transmitting terminal has reached the transmission of last transmission block and retransmit the failure maximum times, is then to enter step (23); Otherwise enter step (22);
(22) transmitting terminal mixes automatic repeat requests entity and judges whether the system call result is situation about abandoning the repeating transmission of last transmission block, is then to enter step (23); Otherwise the transmission of the described last transmission block of the notice automatic repeat requests entity of transmitting terminal makes a mistake;
(23) transmitting terminal mixes automatic repeat requests entity and judges whether to notify the transmission of the described last transmission block of the automatic repeat requests entity of transmitting terminal to make a mistake, and is to think that then this message is redundancy message, abandons this mistake Indication message; Otherwise the transmission of the described last transmission block of the notice automatic repeat requests entity of transmitting terminal makes a mistake.
The present invention may be to the unnecessary NACK-of transmitting terminal HARQ entity feedback for solving receiving terminal HARQ entity〉ACK mistake Indication message provides new solution, and expense is less than prior art.
Description of drawings
Fig. 1 is a flow chart of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing:
(100) receiving terminal HARQ is at receiving wrong transmission block TB1 to transmitting terminal HARQ feedback NACK message;
(101) at next scheduling interval, receiving terminal HARQ receives the new transmission block TB2 that transmitting terminal HARQ sends;
(102) receiving terminal HARQ judges whether self has reached re-transmission failure maximum times to the re-transmission feedback NACK of a last transmission block TB1, is to enter step (103); Otherwise enter step (104);
(103) receiving terminal HARQ determines not occur NACK-〉the ACK mistake, step finishes;
(104) receiving terminal HARQ determines to occur NACK-〉the ACK mistake, to transmitting terminal HARQ feedback NACK-〉ACK mistake Indication message, enter step (105);
(105) transmitting terminal HARQ judges whether self has reached re-transmission failure maximum times to the re-transmission feedback NACK of transmission block TB1, is to enter step (107); Otherwise enter step (106);
(106) transmitting terminal HARQ judges whether the system call result abandons the repeating transmission to transmission block TB1, is to enter step (107); Otherwise enter step (108);
(107) transmitting terminal HARQ will judge whether to send LOCAL NACK message to transmitting terminal ARQ, being then to abandon this NACK-〉(this mainly is the situation of losing no show receiving terminal HARQ at the transmission block redundancy versions of situation of promptly initiatively abandoning retransmitting at transmitting terminal HARQ no show maximum transmission times or re-transmission to ACK mistake Indication message, receiving terminal HARQ may judge by accident and be NACK-〉the ACK mistake sends redundant NACK-to transmitting terminal HARQ〉ACK mistake Indication message, transmitting terminal HARQ sends LOCAL NACK message for many times to transmitting terminal ARQ with regard to same mistake situation so just can appear, this step is in order to overcome this shortcoming, to reach the purpose of saving resource); Otherwise enter step (108);
(108) transmitting terminal HARQ sends LOCAL NACK message to transmitting terminal ARQ.
The present invention effectively reduces the sending probability of redundancy message, has saved system resource.
Claims (3)
1. processing method for error detection that mixes automatic repeat requests entity is characterized in that: may further comprise the steps:
(1) under the situation for non-last packet or non-independent packet, receiving terminal mixes automatic repeat requests entity and does not retransmit the failure maximum times and just stop the transmission block that transmits at reaching, and mixes automatic repeat requests entity to transmitting terminal and sends wrong Indication message;
(2) transmitting terminal mixes automatic repeat requests entity and judges whether this mistake Indication message is redundancy message, is then to abandon; Otherwise the transmission of the described transmission block of the notice automatic repeat requests entity of transmitting terminal makes a mistake.
2. the processing method for error detection of the automatic repeat requests entity of mixing according to claim 1 is characterized in that: described step (1) comprising:
(11) receiving terminal mixes automatic repeat requests entity at receiving wrong last transmission block after transmitting terminal mixes automatic repeat requests entity feedback NACK message, receives that transmitting terminal mixes the new transmission block that automatic repeat requests entity sends;
(12) receiving terminal mixes automatic repeat requests entity the NACK message of being fed back is counted, judging whether self has reached re-transmission failure maximum times to the feedback NACK message number of times of previous transmission block, is then not mix automatic repeat requests entity feedback error Indication message to transmitting terminal; Otherwise mix automatic repeat requests entity feedback error Indication message to transmitting terminal.
3. the processing method for error detection of the automatic repeat requests entity of mixing according to claim 1 is characterized in that: described step (2) comprising:
(21) transmitting terminal mixes automatic repeat requests entity and judges whether transmitting terminal has reached the transmission of last transmission block and retransmit the failure maximum times, is then to enter step (23); Otherwise enter step (22);
(22) transmitting terminal mixes automatic repeat requests entity and judges whether the system call result is situation about abandoning the repeating transmission of last transmission block, is then to enter step (23); Otherwise the transmission of the described last transmission block of the notice automatic repeat requests entity of transmitting terminal makes a mistake;
(23) transmitting terminal mixes automatic repeat requests entity and judges whether to notify the transmission of the described last transmission block of the automatic repeat requests entity of transmitting terminal to make a mistake, and is to think that then this message is redundancy message, abandons this mistake Indication message; Otherwise the transmission of the described last transmission block of the notice automatic repeat requests entity of transmitting terminal makes a mistake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101529893A CN100518102C (en) | 2006-09-22 | 2006-09-22 | Processing method for error detection of mixed automatic retransfer request entities |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101529893A CN100518102C (en) | 2006-09-22 | 2006-09-22 | Processing method for error detection of mixed automatic retransfer request entities |
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| Publication Number | Publication Date |
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| CN101150453A true CN101150453A (en) | 2008-03-26 |
| CN100518102C CN100518102C (en) | 2009-07-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143137A (en) * | 2010-09-10 | 2011-08-03 | 华为技术有限公司 | Method, device and system for transmitting and receiving media streams |
| WO2012100670A1 (en) * | 2011-01-25 | 2012-08-02 | 华为技术有限公司 | Method and apparatus for data packet retransmission |
| CN102171963B (en) * | 2008-08-04 | 2014-06-25 | 黑莓有限公司 | Method for allocating hybrid automatic repeat request process ID, accessing method and user device |
| CN112865933A (en) * | 2020-12-31 | 2021-05-28 | 京信网络系统股份有限公司 | Data retransmission method, device, equipment and storage medium |
-
2006
- 2006-09-22 CN CNB2006101529893A patent/CN100518102C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102171963B (en) * | 2008-08-04 | 2014-06-25 | 黑莓有限公司 | Method for allocating hybrid automatic repeat request process ID, accessing method and user device |
| CN102143137A (en) * | 2010-09-10 | 2011-08-03 | 华为技术有限公司 | Method, device and system for transmitting and receiving media streams |
| US9094200B2 (en) | 2010-09-10 | 2015-07-28 | Huawei Technologies Co., Ltd. | Method, apparatus and system for sending and receiving a media stream |
| WO2012100670A1 (en) * | 2011-01-25 | 2012-08-02 | 华为技术有限公司 | Method and apparatus for data packet retransmission |
| CN112865933A (en) * | 2020-12-31 | 2021-05-28 | 京信网络系统股份有限公司 | Data retransmission method, device, equipment and storage medium |
| CN112865933B (en) * | 2020-12-31 | 2022-05-31 | 京信网络系统股份有限公司 | Data retransmission method, device, equipment and storage medium |
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| Publication number | Publication date |
|---|---|
| CN100518102C (en) | 2009-07-22 |
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