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Uplink control information transmission method and user equipment

A technology for controlling information and transmission methods, applied in the direction of multiple use of transmission paths, transmission systems, digital transmission systems, etc., can solve the problems of transmission data performance impact, UCI transmission performance cannot be guaranteed, etc., to reduce signal distortion and spectrum expansion Effect of interference, improvement of overall transmission performance, high frequency diversity gain

Pending Publication Date: 2018-11-02
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the UE uses different waveforms to transmit UCI, because different waveforms have different peak-to-average power ratios, inappropriate transmission methods cannot obtain better frequency diversity gain, and the performance of transmitted data may be affected, and the transmission performance of UCI cannot be achieved. Guaranteed

Method used

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  • Uplink control information transmission method and user equipment
  • Uplink control information transmission method and user equipment
  • Uplink control information transmission method and user equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0067] In this implementation method, there is no relationship between the transmission waveform of the PUCCH determined by the UE and the determined transmission waveform of the PUSCH.

[0068] Specifically, the UE receives the dynamic indication information sent by the base station, that is, the indication according to the received system information (including the information of Master Information Block (Master Information Block, MIB) and System Information Block (System Information Block, SIBs)), high-level information The waveform of the UE transmitting the PUCCH and the waveform of transmitting the PUSCH are respectively determined by the instruction of the signaling configuration or the physical layer signaling. The base station respectively instructs the UE which PUCCH transmission waveform to use and which PUSCH transmission waveform to use by using mutually independent dynamic indication information. At the same time, the UE may also separately determine a waveform f...

Embodiment approach 2

[0072] In this implementation method, the transmission waveform of the PUCCH determined by the UE is the same as the determined transmission waveform of the PUSCH, that is, both use CP-OFDM or both use SC-FDM.

[0073] Specifically, the UE receives the dynamic indication information sent by the base station, that is, determines the waveform for transmitting the PUCCH and the waveform for transmitting the PUSCH by the UE according to the received indication of system information, high-level signaling configuration or indication of physical layer signaling. The base station instructs the UE which PUCCH transmission waveform to use and which PUSCH transmission waveform to use by using the same dynamic indication information.

[0074] For example, the base station uses a bit in the system information to indicate that PUCCH and PUSCH adopt CP-OFDM or SC-FDM waveform. When the value of this bit is 0, both PUCCH and PUSCH adopt CP-OFDM waveform. When , both PUCCH and PUSCH adopt SC-F...

Embodiment approach 3

[0076] In this implementation method, there is no relationship between the transmission waveform of the PUCCH determined by the UE and the determined transmission waveform of the PUSCH. The UE determines the transmission waveform of the PUCCH according to the type of the PUCCH.

[0077] First, the types of the PUCCH are introduced, and the PUCCH can be divided into a first-type PUCCH and a second-type PUCCH according to different classification criteria. It is divided according to whether the PUCCH is exclusively used by a single UE or shared by multiple UEs. The first type of PUCCH is a shared PUCCH (such as LTE PUCCH format 3 and PUCCH format 5), that is, the same physical resource block is shared by multiple UEs, and multiple UEs can share and transmit the PUCCH on this physical resource block. The second type of PUCCH is an exclusive PUCCH (such as PUCCH format 4 of LTE), that is, one physical resource block is exclusively shared by one UE, and only this UE can transmit t...

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Abstract

The invention discloses an uplink control information transmission method. The method comprises the steps that the transmission waveform of a physical uplink shared channel (PUSCH) is determined; anduplink control information (UCI) and data are transmitted according to the determined transmission waveform of the PUSCH. Compared with the prior art, the method has the advantages that the UCI and the data which are transmitted on a PUCCH and the PUSCH are laid according to the transmission waveform of the PUSCH, therefore, signal distortion and spectrum spreading interference which are caused bythe peak-to-average power ratios of different waveforms are significantly reduced, and the overall transmission performance of the UCI and a system is greatly improved. The invention further discloses user equipment for uplink control information transmission.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, to a method for transmitting uplink control information and user equipment. Background technique [0002] UCI (Uplink Control Information, uplink control information) in the LTE (Long Term Evolution, long-term evolution) system includes CSI (Channel State Information, channel state information), HARQ-ACK (Hybrid Automatic Retransmission Request-Acknowledgment, hybrid automatic retransmission request response ) and SR (Scheduling Request, scheduling request). UCI can be transmitted in PUCCH (Physical Uplink Control Channel) or in PUSCH (Physical Uplink Shared Channel). When LTE transmits UCI in PUCCH, it uses slot-level frequency hopping to increase frequency diversity. In the frequency domain, the center frequency points are symmetrically distributed relative to the allocated uplink bandwidth, such as figure 1 shown. [0003] 5G (fifth generation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L5/00H04W72/12
CPCH04L5/0053H04L27/2614H04W72/21
Inventor 付景兴喻斌钱辰熊琦
Owner BEIJING SAMSUNG TELECOM R&D CENT
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