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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

Active Publication Date: 2007-05-09
HUAWEI TECH CO LTD
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Problems solved by technology

[0013] Since the above-mentioned scheme of frequency division multiplexing of Unicast service and MBMS service in the same subframe is still in the research stage in the LTE project organization, for the UE side, how to demodulate the Frequency division multiplexing of Unicast service data and MBMS service data in the same subframe is a very important issue

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

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Embodiment Construction

[0057] The scheme of the present invention is based on the technical scheme of frequency division multiplexing MBMS service data and Unicast service data in the same subframe that the LTE project organization is studying at present, proposes how to multiplex the MBMS service data and Unicast service data in the same subframe respectively The reference signal design solution enables the UE side to effectively demodulate the Unicast service data and the MBMS service data multiplexed in the same subframe respectively.

[0058] Among them, in the LTE project organization, the reference signal is defined as having the following main functions:

[0059] 1) for cell identification processing;

[0060] 2) Used for cell handover processing and cell search measurement;

[0061] 3) It is used to perform channel quality indicator (CQI, Channel Quality Indicator) measurement and channel estimation processing.

[0062] In the technical solution proposed by the present invention, the main ...

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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.

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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Application Information

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IPC IPC(8): H04L27/26
Inventor 杜高科马莎王俊伟
Owner HUAWEI TECH CO LTD
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