An implementation method for uplink pilot frequency insertion and data reuse

A technology of data multiplexing and implementation method, applied in the direction of frequency division multiplexing system, multiplexing communication, electrical components, etc. Combining methods and other issues with methods to achieve the effect of improving bandwidth utilization efficiency and excellent performance

Inactive Publication Date: 2007-08-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

However, the code division orthogonality given is performed in the time domain, and the method of code division in the frequency domain is not given, and the combination method of pilot insertion and data multiplexing is not given.

Method used

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  • An implementation method for uplink pilot frequency insertion and data reuse
  • An implementation method for uplink pilot frequency insertion and data reuse
  • An implementation method for uplink pilot frequency insertion and data reuse

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Embodiment Construction

[0043] In order to illustrate the method described in the present invention in more detail, specific examples will be used below.

[0044] Please refer to FIG. 3 , in the present invention, SB1 is time-domain code-division insertion pilot, SB2 is frequency-division insertion pilot, and user data in LB adopts Localized mapping.

[0045] Assuming that there are two pilot symbols SB1 and SB2 in a subframe, there are 6 ways to insert the pilot into the two pilot symbols.

[0046] In the first way, SB1 in the subframe adopts the time domain code division method, SB2 adopts the frequency division method, and the user data adopts the Localized method, as shown in FIG. 3 . The pilot time-domain code division method uses a set of mutually orthogonal code sequences to multiply the pilots of different users in the same cell with these mutually orthogonal code sequences (referred to as pilot scrambling). Interaction not only distinguishes pilots of different users from each other, but also...

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Abstract

The invention discloses a realization method of ascending pilot inserting and data multiplexing, it is fit for ascending pilot construction of single carrier frequency division multiplex, a sub frame of said pilot construction includes the first ascending pilot and the second ascending pilot, the method sets data in integral mode, the first ascending pilot is set in the time domain code-division or frequency domain code-division mode, the second ascending pilot is set in frequency-division mode; or the data is set in integral mode, the first ascending pilot is set in the frequency-division mode, the second ascending pilot is set in time domain code-division or frequency domain code-division mode; or the data is set in sub carrier distributed mode, the first ascending pilot is set in time domain code-division or frequency domain code-division mode, the second ascending pilot is set in the frequency-division mode; or the data is set in sub carrier distributed mode, the first ascending pilot is set in frequency-division mode, the second ascending pilot is set in the time domain code-division or frequency domain code-division mode. The invention adopts proper pilot inserting and data multiplexing technique to make system realize channel compensation and flexible dispatching.

Description

technical field [0001] The invention relates to the field of digital communication, in particular to a method for realizing uplink pilot insertion and data multiplexing based on SC-FDMA (Single Carrier-Frequency Division Multiple Access) technology. Background technique [0002] 3GPP (3 th Generation Partnership Protect (3rd Generation Partnership Project), in order to keep its wireless communication technology competitive in the next ten years or longer, proposed the Long Term Evolution (LTE) strategy, aiming to provide higher user Data rate, higher spectrum utilization efficiency, lower transmission delay with flexible mobility and ideal coverage. As the demand for data services increases in the future, the services will become more and more abundant, and it will become more and more important to provide higher data rates, which is also the primary goal of the future mobile communication system. [0003] The downlink of the LTE evolution strategy adopts Orthogonal Freque...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J1/00
Inventor 郁光辉邓春梅张峻峰胡留军
Owner ZTE CORP
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