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PUSCH transmission method and equipment

一种传输方法、重传指示的技术，应用在物理上行共享信道的传输领域，能够解决没有解决方案、PUSCH定时关系不能简单地完全复用等问题，达到提高上行峰值吞吐量的效果

Active Publication Date: 2018-06-01
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] However, in the current research, due to the advantages of reducing adjacent channel interference when multiple Cells in CA adopt different uplink and downlink configurations, an important topic in the follow-up research of LTE-A is to focus on multiple Cells in CA. How to implement PUSCH transmission when the TDD uplink and downlink configurations of the Cell are different
[0028] Obviously, for the case where multiple Cells in CA adopt different uplink and downlink configurations, the PUSCH timing relationship cannot be simply and completely reused; and as far as the current research results are concerned, there is no solution in this regard

Method used

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  • PUSCH transmission method and equipment

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Experimental program
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Embodiment approach

[0111] In addition, in the case of cross-carrier scheduling and UE is full-duplex, in order to avoid introducing e-PHICH or introduce as little as possible, another implementation method can be used for the scheduled Cell, as follows:

[0112] As Embodiments 1-3 of the present invention, one PUSCH timing relationship can be selected from the PUSCH timing relationships corresponding to the seven TDD uplink and downlink configurations defined in the current protocol as the PUSCH timing relationship of the scheduled Cell according to the following rules.

[0113] In Embodiment 1-3, first select the PUSCH timing relationship corresponding to several TDD uplink and downlink configurations that meet the condition 1 in Embodiment 1-1 among the seven TDD uplink and downlink configurations in the existing protocol as a candidate PUSCH timing relationship. The condition 1 in the embodiment 1-1 has been described above and will not be repeated here. After the candidate PUSCH timing rela...

Embodiment 2-1

[0137] ■If the main scheduling Cell has other uplink and downlink configurations except uplink and downlink configuration 0 and uplink and downlink configuration 6, that is, uplink and downlink configurations 1, 2, 3, 4 or 5, then select the TDD uplink and downlink configuration corresponding to the main scheduling Cell The PUSCH timing relationship of is used as the PUSCH timing relationship of the scheduled Cell;

[0138] ■If the main scheduling Cell is uplink and downlink configuration 0 or uplink and downlink configuration 6, the scheduled Cell is other uplink and downlink configurations except uplink and downlink configuration 0 and uplink and downlink configuration 6, that is, uplink and downlink configuration 1, 2, 3, 4 or 5. Use the PUSCH timing relationship at the corresponding position in Table 4-1, that is, if the main scheduling Cell is 0 and the scheduled Cell is 1, then use the corresponding positions in Table 4-1 where the main scheduling Cell is 0 and the schedu...

Embodiment 2-2

[0147] ■If the main scheduling Cell has other uplink and downlink configurations except uplink and downlink configuration 0 and uplink and downlink configuration 6, that is, uplink and downlink configurations 1, 2, 3, 4 or 5, then select the TDD uplink and downlink configuration corresponding to the main scheduling Cell The PUSCH timing relationship of is used as the PUSCH timing relationship of the scheduled Cell;

[0148] ■If the main scheduling Cell is uplink and downlink configuration 0 or uplink and downlink configuration 6, the scheduled Cell is other uplink and downlink configurations except uplink and downlink configuration 0 and uplink and downlink configuration 6, that is, uplink and downlink configuration 1, 2, 3, 4 or 5. Use the PUSCH timing relationship at the corresponding position in Table 5-1, that is, if the main scheduling Cell is 0 and the scheduled Cell is 1, then use the corresponding position in Table 5-1 where the main scheduling Cell is 0 and the schedul...

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Abstract

The embodiment of the invention discloses a physical uplink shared channel (PUSCH) transmission method which is characterized in that when a plurality of Cells in Carrier Aggregation (CA) adopt time division duplexing (TDD) uplink and downlink configurations which are not exactly same, the method comprises the steps of selecting a PUSCH timing relation corresponding to the TDD uplink and downlinkconfiguration from all the TDD uplink and downlink configurations supported by a system for each Cell according to the combination condition of the TDD uplink and downlink configurations of the Cell configured by user equipment (UE) in the CA, and determining the PUSCH timing relation to be the PUSCH timing relation of the Cell; sending UL Grant on a PDCCH of a corresponding sub-frame on each Cellor sending an HARQ-ACK feedback message on a PHICH of the corresponding sub-frame according to the determined PUSCH timing relation; and receiving PUSCH data on the corresponding PUSCH sub-frame on each Cell according to the determined PUSCH timing relation.

Description

[0001] This application is a divisional application of an invention patent application with the application number "201210046435.0" and the invention title "a PUSCH transmission method". technical field [0002] The present invention relates to the technical field of wireless communication, and more specifically relates to in a Time Division Duplexing (TDD, Time Division Duplexing) system supporting carrier aggregation (CA, CarrierAggregation), when the TDD uplink and downlink configurations of multiple cells (Cells) are incomplete When the same, the physical uplink shared channel (PUSCH, Physical Uplink SharedChannel) transmission method and equipment. Background technique [0003] Long Term Evolution (LTE, Long Term Evolution) technology supports frequency division duplexing (FDD, Frequency Division Duplexing) and time division duplexing (TDD, Time Division Duplexing) two duplexing modes. figure 1 It is a schematic diagram of the frame structure of the TDD system of LTE. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L5/14H04B7/26H04L5/16
CPCH04B7/2656H04L5/001H04L5/0092H04L5/1469H04L5/16H04L1/18H04J3/00H04W72/21
Inventor 张世昌付景兴孙程君
Owner BEIJING SAMSUNG TELECOM R&D CENT
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