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Indicating method and device for detecting signal transmission

A technology for detecting signals and indications, applied in the field of communications, can solve problems such as the reduction of the accuracy of base station channel estimation, and achieve the effects of improving transmission performance and reducing interference

Inactive Publication Date: 2017-11-14
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides an indication method and device for sending sounding signals to at least solve the problem in the prior art that the accuracy of channel estimation of the base station is reduced due to the fact that terminals in adjacent cells send sounding signals to the base station in the same frequency band

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  • Indicating method and device for detecting signal transmission
  • Indicating method and device for detecting signal transmission
  • Indicating method and device for detecting signal transmission

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Experimental program
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Embodiment 1

[0030] like figure 1 As shown, the present invention provides a preferred indication device for sending sounding signals, which is located in the base station, and the device includes: an allocation unit 102, configured to assign a cell sequence number to each adjacent cell; a determination unit 104, configured to Each cell number determines a matrix corresponding to each adjacent cell; the instructing unit 106 is configured to instruct the terminal to send a sounding signal according to the matrix of each adjacent cell.

[0031] In this embodiment, different cell serial numbers are assigned to different cells, and the matrices determined according to these cell serial numbers are also different, and terminals in adjacent cells will also send sounding signals on different carriers according to different matrices. To a certain extent, the possibility of terminals in adjacent cells sending sounding signals in the same frequency band is reduced, thereby solving the problem of bas...

Embodiment 2

[0042] based on figure 1 As shown in the preferred indication device for sending the detection signal, the present invention also provides a preferred indication method for sending the detection signal, such as Figure 4 As shown, the specific steps of the method include:

[0043] S402: The base station assigns a cell sequence number to each adjacent cell;

[0044] S404: The base station determines a matrix corresponding to each adjacent cell according to the serial number of each cell;

[0045] S406: The base station instructs the terminal to send a sounding signal according to the matrix of each adjacent cell.

[0046] In the above preferred embodiment, different cell serial numbers are assigned to different cells, and the matrices determined according to these cell serial numbers are also different, and terminals in adjacent cells will also send sounding signals on different carriers according to different matrices , to a certain extent reduces the possibility of termina...

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Abstract

The present invention discloses a detection signal sending instruction method and device. The method comprises: a base station allocates a cell serial number for each adjacent cell; the base station determines a matrix corresponding to each adjacent cell according to the serial number of each cell; A matrix of adjacent cells, instructing the terminal to send sounding signals. The present invention solves the problem in the prior art that the accuracy of channel estimation of the base station caused by terminals in adjacent cells sending detection signals to the base station in the same frequency band reduces the interference of detection signals sent by terminals between adjacent cells, and achieves The technical effect of improving the transmission performance of the base station is obtained.

Description

technical field [0001] The present invention relates to the communication field, in particular to an indication method and device for sending a detection signal. Background technique [0002] Orthogonal frequency division multiplexing technology is a kind of multi-carrier modulation. The so-called orthogonal frequency division multiplexing technology is to decompose the channel into several orthogonal sub-channels, and realize high-speed parallel transmission of data through these orthogonal sub-channels. Wherein, the signal bandwidth of each subchannel is smaller than the coherent bandwidth, therefore, the channel response of each subchannel can be regarded as flat fading, and channel equalization is relatively easy. [0003] The OFDM system can improve the transmitting performance of the base station through terminal feedback. At present, there are generally two methods for terminal feedback: one is a terminal feedback method based on a codebook, and the other is a termin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L5/00
Inventor 吴昊
Owner ZTE CORP