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A transmission method of pusch

A transmission method and technology of retransmission indication, applied in the transmission field of physical uplink shared channel, can solve the problem of no solution, PUSCH timing relationship cannot be simply fully multiplexed, etc., and achieve the effect of improving uplink peak throughput

Active Publication Date: 2018-02-09
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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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

[0136] ■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;

[0137] ■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 position in Table 4-1 where the main scheduling Cell is 0 and the schedul...

Embodiment 2-2

[0146] ■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;

[0147] ■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 present invention discloses a PUSCH transmission method, the method includes: when multiple Cells of the CA adopt different TDD uplink and downlink configurations, according to the TDD uplink and downlink configuration of the Cell configured for the UE in the CA by the system Combination situation, for each Cell, select the PUSCH timing relationship corresponding to one of the TDD uplink and downlink configurations from all TDD uplink and downlink configurations supported by the system, and determine it as the PUSCH timing relationship of the Cell; according to the determined PUSCH timing relationship Receive the UL Grant on the PDCCH of the corresponding subframe on each Cell or receive the HARQ-ACK feedback information on the PHICH of the corresponding subframe; the corresponding PUSCH subframe on each Cell according to the determined PUSCH timing relationship Send PUSCH data.

Description

technical field [0001] 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 Shared Channel) transmission method. Background technique [0002] 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. The length of each wireless frame is 10 milliseconds (ms), and it is divided into two half-frames with a length of 5ms. Each half-frame contains 8 time slots with a length of 0.5ms and 3 special domains...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L1/16H04W72/12
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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