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Method for pilot signal transmission, base station,and user equipment

A technology of pilot signal and user equipment, applied in the field of transmitting pilot signal, base station and user equipment, can solve the problem of high overhead of pilot signal and so on

Active Publication Date: 2014-01-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In MIMO technology, due to the increase in the number of antennas, the number of ports will also increase accordingly. If an independent pilot signal is allocated to each port according to the existing pilot signal design method, the overhead of the pilot signal will be very high. Big

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  • Method for pilot signal transmission, base station,and user equipment
  • Method for pilot signal transmission, base station,and user equipment
  • Method for pilot signal transmission, base station,and user equipment

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Embodiment Construction

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0049] The technical scheme of the present invention can be applied to various communication systems, such as: Global System of Mobile Communication (Global System of Mobile communication, GSM), Code Division Multiple Access (Code Division Multiple Access, CDMA) system, wideband code division multiple access ( Wideband Code Division Multiple Access Wireless, WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), etc.

[0050] User equipmen...

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Abstract

The invention provides a method for pilot signal transmission, a base station, and a piece of user equipment. The method includes determining m beams and p ports corresponding to the m beams, wherein m and p are the positive integers greater than one; sending n pilot signals to the user equipment UE via ports of q groups, wherein the q groups are obtained by dividing into each group including n ports, and n and q are positive integers greater than one; and sending the first i pilot signal of the n pilot signals via the first i port in each group,1<=i<=n, and i is a positive integer. In the embodiment, the p ports corresponding to the m beams are divided into q groups and the n pilot signals are sent to the user equipment UE via the ports of q groups, wherein the first i ports in each group is used for sending the first i pilot signal of the n pilot signals, so that the number of the sent pilot signals is reduced and the overheading of the pilot signals is reduced.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method for transmitting pilot signals, a base station and user equipment. Background technique [0002] Theoretical analysis shows that as the number of antennas increases, the channel capacity will also increase. At the same time, increasing the number of antennas at the transmitting end can also obtain better beamforming effects, so the wireless transmission technology that uses more antennas to send and receive, that is, multi-input Multiple-Input and Multiple-Output (MIMO) technology has always been one of the mainstream technologies in the field of mobile communication research. [0003] The reference signal, that is, the pilot signal, is a known signal provided by the transmitting end to the receiving end and used by the receiving end for channel estimation or channel measurement. The basic idea of ​​the current pilot signal design is that each port corresponds...

Claims

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Application Information

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IPC IPC(8): A99Z99/00
CPCH04B7/04H04L5/0023H04L5/0048
Inventor 杨晶张劲林
Owner HUAWEI TECH CO LTD
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