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Sub-packet transmission method, sending terminal, receiving terminal and network system

A technology of sending end and packet transmission, applied in the field of communication, can solve problems such as improving and unfavorable system throughput, and achieve the effect of improving throughput

Inactive Publication Date: 2009-12-02
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The adaptive HARQ technology provided by the existing technology only considers the adjustment of modulation parameters, resource allocation parameters, and retransmission time, which is not conducive to the improvement of the throughput of the entire system

Method used

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  • Sub-packet transmission method, sending terminal, receiving terminal and network system
  • Sub-packet transmission method, sending terminal, receiving terminal and network system
  • Sub-packet transmission method, sending terminal, receiving terminal and network system

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Embodiment Construction

[0041] In order to make the embodiment of the present invention more clear, the HARQ system is briefly introduced first. The HARQ system consists of three parts: the transmitter, the channel and the receiver. The sending end obtains the sending parameters of the subpacket, controls the length of the subpacket, controls the maximum number of retransmissions, controls modulation bits, and controls the power, and then sends the subpacket to the channel. The receiving end receives the sub-packet, and merges the symbol received in the last retransmission with the previously cached symbol related to this sub-packet. If the sub-packet verification is successful after the combination, the sub-packet is output, and the cached and related symbols are deleted. Information about the subpackage.

[0042] An embodiment of the present invention provides a sub-packet transmission method, which specifically includes: the sending end acquires information indicating channel conditions; and acqu...

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Abstract

The invention discloses a sub-packet transmission method. The sub-packet transmission method comprises the following steps: a sending terminal obtains channel condition information; transmission parameters comprising at least one of the optimal retransmission number j of sub-packets and the optimal sub-packet length Lsp are obtained by the channel condition information; and the sub-packets are controlled by the transmission parameters to send out. The transmission parameters can be adjusted according to the channel condition information to improve the throughput and ensure the transmission efficiency of the sub-packets.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a subpacket transmission method, a sending end, a receiving end and a network system. Background technique [0002] Hybrid Automatic Repeat Request (HARQ) is the most effective error control technology to ensure reliable data transmission, and plays an important role in modern wireless communication with high speed and high quality of service requirements. [0003] The prior art provides an adaptive HARQ technology. In the adaptive HARQ technology, the transmitting end adaptively changes modulation parameters, resource allocation parameters, and retransmission time according to channel information fed back by the receiving end. [0004] During the research and practice of the prior art, the inventor found the following problems in the prior art: [0005] The adaptive HARQ technology provided by the prior art only considers the adjustment of modulation parameters, resource ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/00
Inventor 林挺萃张朝阳李亚娟常俊仁曾云宝冯淑兰
Owner HUAWEI TECH CO LTD
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