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Method and device for transmitting UCI information

A technology for controlling information and indicating information, which is applied in the direction of transmission path sub-channel allocation, transmission system, digital transmission system, etc., and can solve problems such as heavy workload

Active Publication Date: 2018-07-20
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] As mentioned above, the existing HARQ timing relationship is definite, generally determined by the protocol, so when a new TDD configuration is adopted, a new timing relationship needs to be generated, resulting in a relatively large workload

Method used

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  • Method and device for transmitting UCI information
  • Method and device for transmitting UCI information
  • Method and device for transmitting UCI information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] In this embodiment, the HARQ timing relationship between the dynamically scheduled PDSCH, the SPS PDSCH, and the PDCCH indicating SPS release is described, and two cases are described below.

[0081] The first case: for a UE, the HARQ timing relationship of the dynamically scheduled PDSCH of the UE is determined by the semi-static configuration of high-level signaling.

[0082] For the first case, the HARQ timing relationship between the SPS PDSCH of the UE and the PDCCH indicating SPS release is the same as the HARQ timing relationship of the dynamically scheduled PDSCH, which is uniformly determined by the high-level signaling configuration. The timing relationship is applicable not only to the dynamically scheduled PDSCH but also to the SPSPDSCH and the PDCCH indicating SPS release, which can be specifically configured through a high-level signaling. Or, for the first case, the SPS PDSCH of the UE and the HARQ timing relationship of the PDCCH indicating SPS release a...

Embodiment 2

[0107] In this embodiment, the time unit (that is, k, k i and k i ' time unit), because the length of the time slot may be different in different serving cells and at different times of the same serving cell, therefore, no matter whether the HARQ timing relationship is configured by high-level signaling or dynamically indicated by physical layer signaling For the HARQ timing relationship, the length of the time unit needs to be determined.

[0108] If the time slot length A of the serving cell that transmits HARQ-ACK is constant, and the time slot length B of the serving cell that generates the PDSCH of HARQ-ACK or the PDCCH that indicates SPS release is constant, and the time slot length B of the serving cell that generates HARQ-ACK The time slot length B of the serving cell of the PDSCH or the PDCCH indicating the release of the SPS is the same as the time slot length A of the serving cell transmitting the HARQ-ACK, such as Figure 5 As shown, the time unit indicated by th...

Embodiment 3

[0114] In this embodiment, a method for transmitting UCI composed of HARQ-ACK / SR and CSI in PUCCH and PUSCH is described. It is divided into the following situations and described respectively.

[0115] Case 1: When the UE configures the time slot length of the PUCCH for transmitting UCI to be the same as the time slot length of the PUSCH for transmitting data, the following method is adopted.

[0116] When the UE is configured to transmit PUCCH and PUSCH at the same time, at least one PUSCH must be transmitted, and only periodic CSI transmission is required, and the UE transmits periodic CSI on the PUCCH; when the UE is configured to transmit PUCCH and PUSCH simultaneously, at least When transmitting a PUSCH transmission, and only HARQ-ACK / SR transmission, the UE transmits HARQ-ACK / SR on the PUCCH; when the UE is configured to transmit PUCCH and PUSCH at the same time, at least one PUSCH transmission must be transmitted, and the period When CSI and HARQ-ACK are transmitted a...

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Abstract

The invention discloses a method for transmitting UCI information. The method comprises the steps that a terminal determines HARQ (Hybrid Automatic Retransmission Request) timing relationships of dynamical scheduling physical downlink shared channels (PDSCHs) and / or semi persistent scheduling (SPS) PDSCHs and / or indication SPS released PDCCHs according to information sent by a base station; and the terminal transmits generated HARQ-ACK (Hybrid Automatic Retransmission Request Acknowledgement) information according to the determined timing relationships. Through application of the invention, anHARQ-ACK timing determination mode can be simplified, and the HARQ-ACK information can be transmitted timely.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and more specifically, to a method and device for transmitting uplink control information (UCI) of a Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel). Background technique [0002] Long Term Evolution (LTE, Long Term Evolution) technology supports two duplex modes of Frequency Division Duplex (FDD, Frequency Division Duplex) and Time Division Duplex (TDD, Time Division Duplex). 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), which 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 fields of 1ms. The domains are downlink pilot time slot (DwPTS, Downlink pilot time slot), guard interval (GP, Guard period) and uplink pilot time slot (UpPTS, Uplink pilot time slot), each subframe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/18H04W72/04H04W72/12
CPCH04L1/1812H04L1/1864H04L5/0055H04W72/0446H04W72/1263H04W72/21H04L1/1896H04L1/1854H04L1/1887H04L1/1893H04L1/1671H04L1/1861H04W72/20
Inventor 付景兴喻斌钱辰熊琦张英杰苏笛
Owner BEIJING SAMSUNG TELECOM R&D CENT
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