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A method and system for transmitting multi-antenna data

A multi-antenna data and transmission method technology, applied in the direction of multi-frequency code system, digital transmission system, transmission system, etc., can solve the problem of unable to adjust the data transmission mode, and achieve the effect of guaranteed quality, high throughput and peak rate

Active Publication Date: 2015-09-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a multi-antenna data transmission method and system to solve the defect that the existing system cannot make corresponding adjustments to the data transmission mode according to the different channel conditions on each frequency band

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  • A method and system for transmitting multi-antenna data
  • A method and system for transmitting multi-antenna data

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Embodiment Construction

[0046] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0047] In an embodiment of the present invention, a method for transmitting multi-antenna data, such as figure 1 shown, including:

[0048] a. The sending end encodes each transmission block to be transmitted;

[0049] Among them, when encoding, a fixed code rate encoding method can be used; the encoding method can adopt Turbo code (Turbo code), convolution code (Convolution code), low density parity check code (Low Density Parity Check code, referred to as LDPC) or other encoding methods;

[0050] b. For each transmission block, the transmitting end modulates the data obt...

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Abstract

A method and system for sending multi-antenna data. The method includes: encoding each transmission block to be transmitted; for each transmission block, modulate the data obtained after encoding the transmission block, then map the same onto an integral number of orthogonal frequency division multiplexing (OFDM) symbols; in the situation where a user only has time domain scheduling and each user occupies the integral number of OFDM symbols in the time domain and occupies the whole bandwidth in the frequency domain, dividing the integral number of OFDM symbols into sub-bands according to frequency selectivity difference; allocating a layer number to each sub-band of each OFDM symbol; and grouping a plurality of successive OFDM symbols into a radio frame, then sending the same to a receiving end. By using the above technical solution, when transmitting multi-antenna data, the sending end flexibly adjusts the data modulation mode on each layer, which can ensure the data transmission quality effectively and acquire the gain of adaptive modulation and coding, thereby higher throughput and peak rate can be further acquired.

Description

technical field [0001] The present invention relates to a mobile communication system, in particular to a multi-antenna data sending method and system. Background technique [0002] In mobile communication systems, due to the time-varying characteristics of wireless fading channels, there are a lot of uncertainties in the communication process. In order to improve the system throughput, high-order modulation with high transmission rate and less redundant error correction codes are usually used for communication, so that the system throughput is greatly improved when the signal-to-noise ratio of the wireless fading channel is ideal, but when the channel When it is in deep fading, it is impossible to ensure reliable and stable communication; in order to ensure the reliability of communication, low-order modulation with low transmission rate and large redundant error correction codes are usually used for communication, that is, when the wireless channel is in deep fading, it is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04L27/26H04L1/00
CPCH04L5/0023H04L5/0037H04L5/0046H04L1/004
Inventor 许进郁光辉梁春丽郝鹏戴博吴欣
Owner ZTE CORP