Terminal uplink/downlink HARQ (Hybrid Automatic Repeat Request) feedback information dispatching method and device

An information scheduling and terminal technology, applied in the field of communication, can solve the problems of resource consumption and high complexity of ACK/NACK scheduling, and achieve the effect of saving resources

Active Publication Date: 2011-06-22
SANECHIPS TECH CO LTD
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Problems solved by technology

[0020] The present invention aims to provide a terminal uplink / downlink HARQ ACK / NACK information scheduling method and device to solve the problem in the related art that the TD-LTE terminal equipment realizes ACK / NACK scheduling with high complexity and consumes a lot of resources

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  • Terminal uplink/downlink HARQ (Hybrid Automatic Repeat Request) feedback information dispatching method and device
  • Terminal uplink/downlink HARQ (Hybrid Automatic Repeat Request) feedback information dispatching method and device
  • Terminal uplink/downlink HARQ (Hybrid Automatic Repeat Request) feedback information dispatching method and device

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[0048] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0049] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0050] As mentioned in related technologies, TD-LTE system defines 7 kinds of uplink / downlink subframe configuration modes and special TDD UL / DLConfiguration 0, complex uplink / downlink HARQ timing relationship, uplink transmission subframe bundling mode, two kinds of downlink HARQ Both ACK / NACK feedback modes bring greater complexity to TD-LTE terminal equipment to implement ACK / NACK scheduling, and waste a lot of resources.

[0051] In order to solve the above technical problems, the embodiment of the present invention provides a terminal uplink hybrid au...

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Abstract

The invention provides a terminal uplink / downlink HARQ (Hybrid Automatic Repeat Request) ACK / NACK (Acknowledgement / Negative Acknowledgement) information dispatching method and device. The uplink information dispatching method comprises the following step: a terminal confirms a subframe number of a subframe of the current ACK / NACK to be received, carries out database access control on a subframe database by adopting the subframe number as an index, obtains ACK / NACK information corresponding to the subframe number and dispatches the following PUSCH (Physical Uplink Shared Channel) new transmission or retransmission according to obtained information. The downlink information dispatching method comprises the following step: the terminal receives and decodes a TB (Transmission Block), generates ACK / NACK information, confirms the subframe number of the subframe of the received ACK / NACK information, carries out database access control on the subframe database by adopting the subframe number as the index and dispatches PUCCH (Physical Uplink Control Channel) / PUSCH to carry out ACK / NACK feedback according to the generated ACK / NACK information. By adopting the invention, the problems of complex ACK / NACK dispatching realization and resource waste by TD-LTE (Time Division-Long Term Evolution) terminal equipment can be solved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a terminal uplink / downlink HARQ ACK / NACK information scheduling method and device. Background technique [0002] The radio frame structure of the 3GPP Long Term Evolution (LTE) system includes two different standards: Frequency Division Duplex (Frequency Division Duplex, FDD) mode and Time Division Duplex (Time Division Duplex, TDD) mode. The Time Division-Long Term Evolution TD-LTE (Time Division-Long Term Evolution) system defines seven different uplink / downlink subframe configuration methods, as shown in Attached Table 1. [0003] Table 1 TD-LTE system uplink / downlink subframe configuration mode [0004] [0005] Hybrid Automatic Repeat reQuest (HARQ) combined with forward error correction (Front Error Correct, FEC) and automatic repeat reQuest (Automatic Repeat reQuest, ARQ) mechanism, is a kind of used in LTE system to improve An error control scheme for data transmiss...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04W72/12
CPCH04L1/1854
Inventor 钟庆新
Owner SANECHIPS TECH CO LTD
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