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Method, system and equipment for transmitting and receiving uplink data

A technology of data and transmission blocks, applied in the field of transmission and reception of uplink data, which can solve problems such as low transmission performance

Inactive Publication Date: 2012-04-11
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A method, system and device for transmitting and receiving uplink data provided by the embodiments of the present invention are used to solve the problem of relatively low transmission performance of the LTE system existing in the prior art

Method used

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  • Method, system and equipment for transmitting and receiving uplink data
  • Method, system and equipment for transmitting and receiving uplink data
  • Method, system and equipment for transmitting and receiving uplink data

Examples

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example 1

[0147] Example 1: Inter-cell interference needs to be reduced.

[0148] Configure PUSCH format 2 for edge user equipment, and the spreading code of PUSCH format 2 is specific to the cell.

[0149] Wherein, the equivalent code rate (including the spread spectrum effect) corresponding to the user equipment configured as PUSCH format 2 is the same as the equivalent code rate corresponding to the user equipment configured as PUSCH format1, that is, the code rate corresponding to PUSCH format 2MCS is the same as that corresponding to PUSCH format 2MCS 2 times the code rate.

[0150] Example 2: It is necessary to increase the system capacity. PUSCH format 2 spreading codes are specially assigned for user equipment, and users mapped on the same resource are configured with different spreading codes.

[0151] Wherein, the equivalent code rate corresponding to PUSCH format 2 (including the spreading effect) configured by the user equipment is the same as the equivalent code rate corre...

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Abstract

The embodiment of the invention relates to the technical field of wireless communication, in particular relates to a method, system and equipment for transmitting and receiving uplink data, used for solving the problem that a long term evolution (LTE) system is low in transmission performance in the prior art. The method for transmitting the uplink data comprises the following steps that: user equipment multiplies data on a sub carrier or an orthogonal frequency division multiplexing (OFDM) sign by an orthogonal frequency spreading sequence to acquire data subjected to frequency spreading; if the data on one sub carrier is multiplied by the orthogonal frequency spreading sequence, the user equipment maps the data subjected to frequency spreading to M sub carriers for transmission; and if the data on one OFDM sign is multiplied by the orthogonal frequency spreading sequence, the user equipment maps the data subjected to frequency spreading to M OFDM signs for transmission, wherein M is the length of the orthogonal frequency spreading sequence. By adopting the method provided by the embodiment of the invention, the transmission performance is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, system and equipment for transmitting and receiving uplink data. Background technique [0002] The LTE (Long Term Evolution, long-term evolution) system has been selected by many operators as the main solution for post-3G, which means that the application scenarios, deployment scenarios and spectrum allocation of LTE are more complicated, far beyond the initial stage of LTE standard discussion. assumption. [0003] Although LTE-A (Long Term Evolution-Advanced, long-term evolution upgrade) has introduced many new technologies, such as multi-carrier aggregation, high-order multi-antenna technology (MIMO) and coordinated multi-point transmission (CoMP), it is mainly used to solve high-speed and high spectral efficiency. However, in the actual network deployment process, inter-cell interference and network throughput are still a more difficult probl...

Claims

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Application Information

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IPC IPC(8): H04L25/02H04L27/26
CPCH04L25/02H04L5/0019
Inventor 徐婧潘学明沈祖康
Owner CHINA ACAD OF TELECOMM TECH
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