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Modulation and coding scheme adaptive adjustment method and device

A modulation and coding scheme and self-adaptive adjustment technology, applied in digital transmission systems, electrical components, error prevention, etc., can solve problems affecting communication system capacity, communication network performance, wireless RB resource allocation and use, etc.

Inactive Publication Date: 2017-02-08
青岛艾特网络发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the existing technology, the base station simply maps to the MCS according to the channel quality indication CQI information reported by the current UE, but this cannot reasonably allocate and use wireless RB resources, which will eventually affect the capacity of the communication system and the performance of the communication network

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  • Modulation and coding scheme adaptive adjustment method and device
  • Modulation and coding scheme adaptive adjustment method and device
  • Modulation and coding scheme adaptive adjustment method and device

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Embodiment Construction

[0128] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0129] The embodiments of the present invention aim at simply mapping the base station to the MCS according to the channel quality indicator CQI information reported by the current UE in the prior art, but in this way, the wireless RB resources cannot be reasonably allocated and used, which will eventually affect the capacity of the communication system and the communication network To solve the problem of performance, an adaptive adjustment method and device for a modulation and coding scheme are provided, which can improve the channel efficiency of a communication system, increase the throughput rate, and thus achieve a higher transmission rate.

[0130] figure 1 It is a schematic flowchart of an adaptive adjustment method for a modu...

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Abstract

The invention provides a self-adaptive adjusting method and a self-adaptive adjusting device of a modulation and coding scheme, which belongs to the field of mobile communication. The self-adaptive adjusting method of the modulation and coding scheme comprises the steps that a base station demodulates received channel quality indication (CQI) information, and an initial value MCS_Init of the modulation and coding scheme (MCS) is calculated according to the CQI information; the base station receives ACK / NACK information and calculates a correction value delta MCS of the MCS according to the ACK / NACK information; and the base station determines a final MCS value according to the initial value and the correction value of the MCS. Due to the adoption of the technical scheme, the channel efficiency of a communication system can be improved, the throughput rate is increased, and higher transmission speed can be realized.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to an adaptive adjustment method and device for a modulation and encoding scheme. Background technique [0002] The 3GPP Long Term Evolution (LTE) project is the largest new technology launched by 3GPP in the past two years. Multiple Access) as the core technology can be regarded as "quasi-4G" technology, mainly including FDD (Frequency Division Duplexing, frequency division multiplexing) LTE and TDD (Time Division Duplexing, time division multiplexing) LTE. [0003] The LTE control channel mainly includes a physical control format indicator channel (Physical control format indicator channel, PCFICH) and a physical downlink control channel (Physical downlink control channel, PDCCH). The number of Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by the control channel in the time domain is called the Control Format Indicator (CFI), and the CFI is transmi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/06
Inventor 高峰
Owner 青岛艾特网络发展有限公司