PUSCH authorization and HARQ transmission method

A transmission method and retransmission technology, applied in the field of PUSCH authorization and HARQ transmission, which can solve the problems that the HARQ process is not standardized and cannot send scheduled Cell uplink authorization, etc.

Inactive Publication Date: 2013-11-13
POTEVIO INFORMATION TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In cross-carrier scheduling, when the scheduling Cell is a non-10ms RTT, if a conflicting subframe is scheduled as an uplink subframe, the conflicting subframe on the scheduling Cell cannot send the uplink grant of the scheduled Cell
At the same time, when 10ms RTT and non-10ms RTT are mixed in the configuration, the HARQ process of PUSCH is not standardized

Method used

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  • PUSCH authorization and HARQ transmission method
  • PUSCH authorization and HARQ transmission method
  • PUSCH authorization and HARQ transmission method

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Embodiment Construction

[0066] In order to make the purpose, technical means and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0067] In Rel-11 cross-carrier scheduling, when there is 0 or 6 in the configuration, because the time change of RTT has an impact on the PUSCH process, the present invention provides that when different TDD bands have different configurations, the RTT is not 10ms for cross-carrier scheduling HARQ process design of PUSCH. In the present invention, a Cell carrying a scheduling grant is called a scheduling cell, and a Cell on which the scheduling grant is transmitted on other Cells is called a scheduled cell.

[0068] The PUSCH authorization and HARQ transmission methods of the present invention are given below for when the scheduling Cell and the scheduled Cell are in different combinations of uplink and downlink ratios. For simplicity of description, in the figure,...

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Abstract

The invention provides a PUSCH authorization and HARQ transmission method. The method includes the following steps: (1) carrying out authorization and HARQ transmission on a PUSCH of non-conflicting subframes of a dispatched Cell on a dispatching Cell according to a timed relationship between a PUSCH HARQ process and each HARQ process of the dispatching Cell, (2) presetting a timed relationship corresponding to a PUSCH of conflicting subframes of the dispatched Cell, and carrying out authorization and HARQ transmission on the PUSCH of the conflicting subframes on the dispatching Cell according to the set timed relationship, (3) triggering retransmission by using DCI authorization or triggering retransmission by using an e-PHICH on the PUSCH when corresponding PHICH subframes do not exist on the PUSCH according the timed relationship between the non-conflicting subframes and the conflicting subframes. By means of the PUSCH authorization and HARQ transmission method, PUSCH authorization and HARQ transmission can be achieved in the process of crossed carrier wave dispatching, and design for the HARQ processes in crossed carrier wave dispatching is also provided.

Description

technical field [0001] The present invention relates to communication system technology, in particular to a PUSCH authorization and HARQ transmission method. Background technique [0002] In Release10 (Rel-10), the concept of carrier aggregation is introduced to support wider bandwidth transmission, that is, two or more carriers are aggregated together to support LTE-A transmission with a transmission bandwidth greater than 20MHz. For the TDD scenario of Rel-10 carrier aggregation, only the intra-band scenario is supported. This frequency band (band) is the usable wireless resource spectrum resource determined by the International Telecommunication Union. If different uplink and downlink ratios are used, the Serious interference will be caused when uplink and downlink are sent and received, so the aggregated component carriers (component carriers) adopt the same TDD uplink and downlink configuration, such as figure 1 As shown, the configuration of the uplink and downlink su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/06H04L1/18H04W72/12
Inventor 鲁智陈哲池连刚
Owner POTEVIO INFORMATION TECH
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