Method, device and system for transmitting data

A technology for transmitting data and equipment, which is applied in the field of equipment and systems, a method of transmitting data, and can solve problems such as small frequency diversity gain

Active Publication Date: 2019-06-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when data packets are transmitted using this method of always concentrating the bandwidth occupied by the PUCCH at

Method used

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  • Method, device and system for transmitting data
  • Method, device and system for transmitting data
  • Method, device and system for transmitting data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0183] If the current retransmission subframe belongs to the first time subset, the first device determines a first start position of the data to be transmitted according to the initial frequency hopping position and the total frequency hopping bandwidth;

[0184] If the current retransmission subframe belongs to the second time subset, the first device determines the first time interval of the data to be transmitted according to the initial position of the frequency hopping, the bandwidth of the data to be transmitted, and the total bandwidth of the frequency hopping start position.

[0185] For example, the algorithm of formula (1) can be used to determine the first starting position of the data to be transmitted,

[0186]

[0187] Among them, n VRB，1 , n VRB，2 Respectively represent the starting positions of the data to be transmitted in the low-frequency band and high-frequency band in the frequency domain, which can be determined by the initial position of the frequenc...

Embodiment 2

[0194] If the current retransmission subframe belongs to the first time subset, the first device moves from a lower frequency position to a higher frequency position according to the initial frequency hopping position, the bandwidth of the data to be transmitted, and the total frequency hopping bandwidth , and the product of the number of retransmissions and the frequency hopping offset, to determine the first starting position of the data to be transmitted;

[0195] If the current retransmission subframe belongs to the second time subset, the first device moves from a higher-frequency position to a lower-frequency position according to the initial frequency hopping position, the bandwidth of the data to be transmitted, and the total frequency hopping bandwidth , and the product of the number of retransmissions and the frequency hopping offset to determine the first starting position of the data to be transmitted.

[0196] For example, the algorithm of formula (2) can be used ...

Embodiment 3

[0216] If the maximum number of retransmissions is not greater than 2, and the current retransmission subframe belongs to the first time subset, then the first device determines the first starting time according to the initial frequency hopping position and the total frequency hopping bandwidth Location;

[0217] If the maximum number of retransmissions is not greater than 2, and the current retransmission subframe belongs to the second time subset, the first device, according to the initial frequency hopping position, the bandwidth of the data to be transmitted, and the frequency hopping the total bandwidth determines said first starting position;

[0218] If the maximum number of retransmissions is greater than 2, and the current retransmission subframe belongs to the first time subset, the first device moves from a lower frequency position to a higher frequency position according to the frequency hopping initial position, The bandwidth of the data to be transmitted, the to...

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Abstract

Embodiments of the present invention provide a data transmission method, device, and system. The data transmission method of the present invention includes: the first device determines the frequency hopping parameter and the retransmission times of the data to be transmitted, and the frequency hopping parameter includes the frequency hopping initial position, the bandwidth of the data to be transmitted, the frequency hopping offset and The total bandwidth of frequency hopping; the first device determines the first starting position of the data to be transmitted according to the number of retransmissions of the data to be transmitted and the frequency hopping parameters; the first device determines the first starting position of the data to be transmitted according to the first starting position Send the data to be transmitted to the second device with the bandwidth of the data to be transmitted. The embodiment of the present invention ensures that the retransmitted data packet can traverse as many frequency domain intervals as possible, so as to obtain greater frequency diversity gain.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a method, device and system for transmitting data. Background technique [0002] Channels in wireless communication systems usually have unsteady characteristics in time, and usually show certain frequency-domain selectivity in frequency domain. In the Long Term Evolution (English full name: Long Term Evolution, English abbreviation: LTE) system, there is a Physical Uplink Control Channel (English full name: Physical Uplink Control Channel, English abbreviation: PUCCH), and the fixed-format PUCCH frequency hopping method is fixed. For example, a bandwidth occupied by PUCCH may be as follows: on even time slots, the bandwidth occupied by PUCCH is located in the lowest frequency band of the total bandwidth of the wireless communication system; Therefore, for a PUCCH with a fixed format, the frequency bands it occupies through frequency hopping are always at b...

Claims

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Application Information

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IPC IPC(8): H04B1/7136H04L5/00
CPCH04B1/713H04L1/00H04W72/02H04W72/0453H04W88/04H04L1/1812H04W72/21H04W72/0446
Inventor 王键黎超张兴炜
Owner HUAWEI TECH CO LTD
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