Method and system of setting up reference signal for multiplexing service data

A technology of reference signal and service data, applied in multi-frequency code systems and other directions, can solve the problems of demodulation and frequency division multiplexing, and achieve the effect of accurate and effective demodulation
CN1960353AActive Publication Date: 2007-05-09HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2007-05-09

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Abstract

The method comprises: for each cell, allocating the first reference signal used for estimating the channel for bearing non broadcast and multicast service data, and the second reference signal used for estimating the channel for bearing the Broadcast and multicast data; each cell inserts the first reference signal into the non broadcast and multicast service data subcarrier in the subframe multiplexed with the broadcast service data and non broadcast service data, and inserts the second reference signal into the broadcast and multicast service data subcarrier in the subframe multiplexed with the broadcast and multicast service data and non broadcast and multicast data, and sends them to the user end.
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Description

technical field

[0001] The present invention relates to the technical field of reference signal design, in particular to a method and system for setting reference signals for multiplexing service data. Background technique

[0002] Since the 1990s, multi-carrier technology has become a hot technology in broadband wireless communication. Its basic idea is to divide a broadband carrier into multiple sub-carriers and transmit data simultaneously on the divided sub-carriers. In most system applications, the width of subcarriers is smaller than the coherent bandwidth of the channel, so that on frequency selective channels, the fading on each subcarrier is flat fading, which reduces the crosstalk between user data symbols, and It does not require complex channel equalization and is suitable for high-speed data transmission. Existing multi-carrier technology has various forms, such as Orthogonal Frequency Division Multiplex Access (OFDMA, Orthogonal Frequency Division Multiplex Ac...

Claims

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