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Method for generating detection signal

A technology for detecting a signal and a design method, which is applied in the field of detecting a signal to achieve the effects of reducing the difficulty of cell planning, high SINR accuracy, and saving terminal power

Inactive Publication Date: 2014-02-12
THE RES INST OF TELECOMM TRANSMISSION MIIT +1
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to introduce a detection signal for a new carrier type, thereby solving the problem of measurement overhead in the case of a large density of micro cells

Method used

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] The invention provides a method for generating a detection signal. The method introduces a carrier type that is not backward compatible, and sets the carrier type in the high frequency band, the frequency range is 3GHz-60GHz, and the measurement period is greater than the existing measurement period. The range value of the period is 160ms-1280ms; reuse the positioning pilot, this new detection signal is only sent in the downlink subframe that the system is configured to send the detection signal, the transmission bandwidth is the full bandwidth of the system, and the time period is longer, as...

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Abstract

The invention provides a method for generating a detection signal. The method for generating the detection signal comprises the steps that a carrier type which is not backward compatible is introduced, the carrier type which is not backward compatible is set on a high-frequency section and a measurement period is long; a design method of positioning pilot frequency is reused, the new detection signal is only sent in a downlink sub frame when a system is configured to the state of detection signal sending, the sending bandwidth is the full bandwidth of the system, and the period ranges from 160ms to 1280ms; the method that the zadoff chu sequence and cycle shift are combined is applied, and the zadoff chu sequence is used as a signal discovery sequence of different cells. By the adoption of the method for generating the detection signal, a measurement period is long, the terminal power is effectively saved, and the frequency domain density is larger than that of an existing downlink signal used for synchronization, so that the precision of the measured SINR is high; enough orthogonal or half-orthogonal sequences are applied, a terminal can detect multiple cells at the same time, and cell planning difficulty is low.

Description

technical field [0001] The invention relates to the field of detection signals, in particular to a method for generating a detection signal that can be used on a carrier that is not backward compatible. Background technique [0002] With the widespread popularization of smart terminals, more and more wireless data services take place indoors, and indoor services are characterized by low mobility and high traffic volume. In order to improve the performance of indoor hotspot services, the optimization technology may consider increasing bandwidth, improving spectrum efficiency, and increasing cell density. At present, LTE-Advanced supports a maximum bandwidth of 100MHz. If the system bandwidth is further increased, the system needs to work in a higher frequency band. However, frequency bands below 3 GHz suitable for mobile scenarios are very limited. Consider using frequency bands above 3 GHz. The propagation distance of the high-frequency band is short, and the indoor environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/18H04W24/08H04B17/00
CPCY02B60/50Y02D30/70
Inventor 焦慧颖
Owner THE RES INST OF TELECOMM TRANSMISSION MIIT
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