Communication method and device

A technology of communication method and modulation mode, which is applied in the field of communication, and can solve problems such as cross-connection configuration is difficult to meet NR requirements

Active Publication Date: 2020-01-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in NR, these two modulation methods may cover a larger SNR range, and scenarios with different bandwidths need to be considered. The fixed cross configuration of NB-IOT is difficult to meet the requirements of NR.

Method used

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  • Communication method and device

Examples

Experimental program
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Effect test

Embodiment 2

[0345] Embodiment 2: The user equipment cannot directly configure the MCS table or update the MCS table, and the configuration and update of the MCS table on the user equipment side need to be determined by the network device.

[0346] Figure 7 An interactive schematic diagram of a communication method provided by the embodiment of this application, including steps S301-S304:

[0347] S301. The network device determines the modulation mode corresponding to the target index number according to the correspondence between the index number and the modulation mode.

[0348] S302. The network device communicates according to the modulation mode corresponding to the target index number.

[0349] S303. The user equipment determines the modulation mode corresponding to the target index number according to the correspondence relationship between the index number and the modulation mode.

[0350] S304. The user equipment communicates according to the modulation mode corresponding to t...

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Abstract

The embodiment of the invention provides a communication method and device, and solves the problem that network equipment cannot flexibly select a modulation mode in NR. The method comprises the following steps: first communication equipment determines a modulation mode corresponding to the target index number according to a corresponding relationship between the index number and the modulation mode, wherein the corresponding relationship between the index number and the modulation mode is described in the specification, each index number corresponds to one modulation mode set, the modulationmode set comprises at least one modulation mode, each modulation mode set in the K modulation mode sets comprises pi / 2 binary phase shift keying pi / 2-BPSK modulation or quadrature phase shift keying QPSK modulation, and K is an integer greater than zero; and the first communication equipment communicates according to the modulation mode corresponding to the target index number.

Description

[0001] This application is a divisional case of a Chinese patent application submitted to the China Patent Office on February 13, 2018, with the application number 201810150923.3 and the title of the invention "a communication method and device". technical field [0002] The present application relates to the technical field of communication, and in particular to a communication method and device. Background technique [0003] The new generation of wireless communication system (new radio, NR) includes a working frequency band above 6 GHz. In order to improve the coverage under the condition of limited power amplifier capability, NR uplink adopts discrete Fourier transform spread orthogonal frequency division multiplexing (discretefourier transformation spread orthogonal The frequency division multiplexing, DFT-S-OFDM) waveform is a supplement to the OFDM waveform. In order to further reduce the peak to average power ratio (PAPR) of the DFT-S-OFDM waveform, NR introduces a π / ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/32H04L27/34H04L27/36
CPCH04L27/32H04L27/34H04L27/36H04L1/0016H04L1/0003H04L27/2636H04L27/18H04L27/0008H04L27/2627H04W72/04H04W72/12
Inventor 刘凤威陈磊
Owner HUAWEI TECH CO LTD
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