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Hybrid automatic retransmission method, system and terminal in MC-HSUPA

A hybrid automatic retransmission and terminal technology, applied in the field of information transmission, can solve the problems of not being effectively utilized, limiting the processing capability of the MC-HSUPA terminal, and not allowing the configuration of unscheduled transmission, so as to achieve the effect of improving the processing capability.

Active Publication Date: 2012-05-09
盐城昊隆机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Non-scheduled transmission is not allowed in MC-HSUPA, so each HARQ entity has only 4 HARQ processes in a multi-carrier system, which means that there are 4 HARQ processes for non-scheduled transmission that have not been effectively utilized, thus Limits the terminal processing capability of MC-HSUPA
In addition, if the four scheduling processes are all used for retransmission in a poor channel environment, and currently there is data with higher quality of service (QoS) arriving, it is necessary to wait for one of the four processes to be released before it can be used The released HARQ process transmission will lead to QoS cannot be guaranteed

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Embodiment Construction

[0044] The basic idea of ​​the present invention is: in MC-HSUPA, the terminal selects the HARQ process for scheduling transmission according to the process selection rule, and sends the HARQ process identification of the selected HARQ process to the base station; the base station obtains the HARQ process identification according to the HARQ process identification and the process selection rule HARQ process number, the uplink data is processed in the corresponding HARQ process.

[0045] The process selection rule is pre-agreed by the terminal and the base station, including:

[0046] According to the subframe number, it is determined to select in the first 4 or last 4 HARQ processes. When the subframe number is 1, it is selected in the HARQ process 0~3. When the subframe number is 2, it is selected in the HARQ process 4~ 7; or, when the subframe number is 1, select in HARQ processes 4 to 7, and when the subframe number is 2, select in HARQ processes 0 to 3;

[0047] Or, accor...

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Abstract

The invention discloses a hybrid automatic retransmission (HARQ) method in multi-carrier high speed uplink packet access (MC-HSUPA). In MC-HSUPA, a terminal selects HARQ process as scheduling transmission according to the process selecting rule and sends a corresponding HARQ process mark to a base station; the base station obtains HARQ process number according to the HARQ process mark and the process selecting rule and process uplink data at corresponding HARQ process. The invention discloses an HARQ system and terminal in MC-HSUPA at the same time. The proposal of the invention can make 4 HARQ scheduling processes owned by the terminal HARQ entity of the present MC-HSUPA expand to 8 scheduling processes to improve the processing performance of the MC-HSUPA terminal and the scheduling flexibility is improved to ensure the service quality and requirement.

Description

technical field [0001] The present invention relates to the information transmission technology of Time Division Synchronous Code Division Multiple Access (TD-SCDMA, TimeDivision Synchronous Code Division Multiple Access) in the field of mobile communication, in particular to a kind of multi-carrier high-speed uplink packet access (MC-HSUPA, Multi-carrier A method, system and terminal for Hybrid Automatic Repeat Request (HARQ, Hybrid Automatic Repeat Request) in High Speed ​​Uplink Packet Access). Background technique [0002] In the TD-SCDMA system, the length of a Time Division Multiple Access (TDMA, Time Division Multiple Access) frame is 10ms, which is divided into two 5ms subframes, and the subframe numbers are 1 and 2 respectively, such as figure 1 As shown, the structures of the two subframes within each 10ms frame length are exactly the same. [0003] In order to meet the growing demand of users for high-speed uplink packet data services, and to better cooperate wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04W72/12
Inventor 黄春黄河
Owner 盐城昊隆机械有限公司
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