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Transmission method and reception method in wireless communication system

A technology of a wireless communication system and a transmission method, applied in the field of transmission and reception in a wireless communication system, capable of solving problems such as increased single-stream SNR loss

Inactive Publication Date: 2019-08-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that although the SNR loss of the dual-stream SE is very low relative to that of the single-stream SE, further increase of the streams increases the SNR loss of the single-stream SE
And, relative to the AWGN channel capacity, the SNR gap increases with the number of streams: with K=7 streams, the gap is close to 12dB

Method used

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  • Transmission method and reception method in wireless communication system
  • Transmission method and reception method in wireless communication system
  • Transmission method and reception method in wireless communication system

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Embodiment Construction

[0150] The present invention relates to a method for concurrent transmission of multiple independent data streams by effectively sharing the same physical time-frequency-space wireless resource such as a resource element (RE), which can be used for different users. The invention also relates to a corresponding receiving method.

[0151] The present invention is applicable to the downlink and uplink of the cellular wireless communication system in FDD mode or TDD mode. However, the present invention is not limited to cellular systems, but can also be applied to any suitable wireless communication systems, such as general OFDM and single-carrier systems. Figure 7 A general scheme of the system is described in , where the sending device of the invention (left side) sends a communication signal s(l) to the receiver device of the invention (right side) over the radio channel of the wireless communication system, which receiver device receives Signal r(l).

[0152] According to t...

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Abstract

The present patent application relates to a transmission method and corresponding receiving methods. The transmission method comprises: selecting K number of data streams for transmission, wherein each data stream comprises one or more data messages; and independently for each data stream k=0, . . . , K−1: encoding and modulating data messages of the kth data stream using a Trellis Coded Modulation, TCM, scheme TCMk, interleaving the encoded and modulated data messages of the k-th data stream by using a stream specific interleaver Πk, scrambling the interleaved data messages of the k-th data stream by using a stream specific scrambling sequence; combining all scrambled data messages of the K number of data streams into at least one transmission signal s(l); and transmitting the at least one transmission signal s(l) over a radio channel of the wireless communication system.

Description

technical field [0001] The present invention relates to a transmission method and a corresponding reception method in a wireless communication system. Furthermore, the invention also relates to a transmitting device, a receiving device, a computer program and a computer program product thereof. Background technique [0002] The electromagnetic (radio) spectrum is a scarce and valuable resource, and its efficient utilization is crucial for current and future wireless communication systems. Fourth generation wireless systems have targeted very high data rates per user. The goal of future transmission systems is not necessarily to increase the data rate, but to achieve an increase in spectral efficiency so that a higher overall data rate can be provided for a large number of simultaneous communicating users. [0003] The multiple access (Multiple Access, MA) scheme is used to enable several users or data streams to simultaneously use a shared communication channel. Next-gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H03M13/25H04L27/34
CPCH03M13/256H03M13/2739H03M13/2957H03M13/6325H04L1/0047H04L1/006H04L27/3416H04L1/0071
Inventor 布兰尼斯拉夫·波波维奇阿尔伯托路·杰赛普路·佩罗蒂
Owner HUAWEI TECH CO LTD
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