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Method and device for detection and synchronization of broadcast channel propagation time interval

A technology of transmission time interval and broadcast channel, which is applied in the field of broadcast channel transmission time interval detection and synchronization, and can solve the problems of indistinguishable, high false alarm rate, etc.

Inactive Publication Date: 2013-11-06
MARVELL TECH SHANGHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the length of the phase pattern is 4, there is a pattern that is not the phase modulation sequence S1 (i.e. (225, 135, 315, 225)) and a pattern of the phase modulation sequence S1 (i.e. (135, 45, 225, 135) ) is only a fixed phase difference (that is, the phase of 90°), and the magnitude of the correlation value of the two is the same, so the two modes cannot be distinguished when making a decision, which will inevitably lead to a high false alarm rate

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  • Method and device for detection and synchronization of broadcast channel propagation time interval
  • Method and device for detection and synchronization of broadcast channel propagation time interval
  • Method and device for detection and synchronization of broadcast channel propagation time interval

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Embodiment Construction

[0029]Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. The present invention is by no means limited to any specific configuration and method set forth below, but covers any modification, substitution and improvement of elements, components and methods, as long as they do not depart from the spirit of the present invention. In the drawings and the following description, well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the present in...

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Abstract

The present invention provides a method and device for detection and synchronization of broadcast channel propagation time interval. The device for detection and synchronization of broadcast channel propagation time interval includes: a phase sequence generation unit, which is configured to receive continuous N sub-frames, and obtains the phase sequence with the length of N, by figuring out the phase sequence of the downlink synchronous code relative to time slot 0 in each sub-frame, wherein N is the integer of the modulation phase number larger than the standard phase modulation sequence; anddetection and synchronization unit, configured to determine whether to synchronize with the broadcast channel based on the phase sequence with the length of N, and determine whether to receive the broadcast channel information at the next transmission time interval.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a method and device for broadcast channel transmission time interval detection and synchronization in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system. Background technique [0002] After the user equipment (UE) is turned on in the radio access network, in order to access the network, the user equipment first needs to perform an initial cell search (ICS). The purpose of cell initial search is to select a suitable working frequency point, and obtain downlink synchronization with the current cell at this frequency point, so that user equipment can quickly access the cellular network, monitor the broadcast channel, receive cell information, and can pass The call implements the communication function of the cellular network. [0003] figure 1 Shows the main process of cell initial search in TD-SCDMA system, which includes: carrier classification, c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W56/00
Inventor 李茜陈晓春刘石周亮
Owner MARVELL TECH SHANGHAI