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Production method of pilot frequency sequence, user equipment and base station

A technology of pilot sequence and user equipment, applied in the field of wireless communication

Active Publication Date: 2014-05-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the multi-UE spatial multiplexing transmission mode, if the dedicated pilot sequence of LTE is used, the channel of the interfering UE cannot be known, and the interference cancellation cannot be performed, which reduces the performance of the system

Method used

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  • Production method of pilot frequency sequence, user equipment and base station
  • Production method of pilot frequency sequence, user equipment and base station
  • Production method of pilot frequency sequence, user equipment and base station

Examples

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no. 1 example

[0061] see figure 1 , which is a first embodiment of a method for generating a pilot sequence in an embodiment of the present invention, may include:

[0062] 101. Generate an initialization sequence of a user equipment UE-specific pilot sequence, where the generation formula of the initialization sequence only includes UE common-known parameters;

[0063] The UE's common knowledge parameter may include a cell ID, and in the coordinated multi-point CoMP transmission mode, the cell ID is the cell ID of the cell where the UE is camped; the UE's common knowledge parameter may also include a cell group ID (cell group ID) , then in the coordinated multi-point CoMP transmission mode, the cell group ID is the cell group ID of the CoMP cell group.

[0064] Formula (2) is the generation formula of the initialization sequence of the UE-specific pilot sequence, which can be specifically:

[0065]

[0066] According to formula (2), it can be known that UE common parameters may inclu...

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Abstract

The embodiment of the invention discloses a production method of a pilot frequency sequence, comprising the following steps of: generating an initialization sequence of a special pilot frequency sequence of user equipment (UE), wherein a generation formula of the initialization sequence only comprises UE shared parameters; generating the special pilot frequency sequence of the UE according to the initialization sequence, therefore, the UE can acquire a special pilot frequency sequence which interferes the UE according to the generated special pilot frequency sequence of the UE, thereby obtaining a channel for interfering the UE to eliminate interference among UEs and enhancing the system performance. The embodiment of the invention also discloses the user equipment and a base station.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for generating a pilot sequence. Background technique [0002] In the downlink transmission of the 3GPP LTE system, the user equipment (UE) dedicated pilot signal (UE Specific Reference Signal) will be used to demodulate the data channel in the beamforming mode. All downlink data channels of the LTE-Advance system are demodulated using UE-specific pilot signals. [0003] The specific process for the terminal to demodulate data through the pilot signal includes: receiving the pilot signal, estimating the transmission channel response according to the pilot signal, and then detecting the data signal of the transmitting end according to the estimated channel response. [0004] Wherein, the transmission channel response estimation based on the pilot signal includes that the receiving end knows the pilot sequence carried by the pilot signal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J13/10H04L27/26
Inventor 孙卫军李洋侯云哲
Owner HUAWEI TECH CO LTD