Method and apparatus for confirming base station district identification code of communications terminal

Abstract

The invention discloses a method and a device for confirming a base station identification code BSIC of a communication terminal. The method comprises: firstly, allocating BSIC initial confirmation to measurement cells without timing information and recording confirmed timing information; and secondly, allocating reconfirmation to measurement cells with timing information, in the process of reconfirmation, positioning an SB receiving position of the measurement cells in the current idle window and allocating BSIC reconfirmation to the measurement cells corresponding to the positioned SB receiving position according to the timing information of the cells need to be measured and cyclophysis of synchronous burst SB in a multiframe structure. The method and the device can shorten confirmationtime of the BSIC of the communication terminal, improve the sleeping property of the communication terminal and achieve power saving function.

Description

technical field [0001] The invention relates to mobile communication technology, in particular, a confirmation method and a confirmation device for a base station cell identification code (BSIC) of a communication terminal are designed. Background technique [0002] In the mobile communication system, the communication terminal needs to perform periodic neighbor cell measurement in the process of searching the network, that is, periodically calculate the Received Signal Strength Indicator (RSSI, Received Signal Strength Indicator), and perform the measurement on the six measurement cells with the strongest RSSI BSIC confirmation. BSIC confirmation is divided into two types: initial confirmation and reconfirmation. When the communication terminal does not have the timing information of a measurement cell, it needs to perform BSIC initial confirmation of the measurement cell; The measurement cell performs BSIC reconfirmation. Therefore, the speed of BSIC confirmation will di...

AI Technical Summary

Problems solved by technology

In fact, it is possible that the location where the BSIC of the first measurement cell appears (that is, the SB receiving location) is very far away, and during this period it is entirely possible that there may be confirmation locations of the BSIC of multiple other measurement cells, so this re-confirmation method is wasted. There are many positions that can be confirmed, so it takes a long time to confirm the BSIC of 6 neighboring cells

Moreover, the current communication system protocol requires the communication terminal to be updated every 30 seconds in the idle state (the update time is shorter in the connected state, once every 10 seconds), and it takes a lot of time to confirm the BSIC between 30 seconds, Can cause short sleep time or even no sleep

[0007] 3) After the initial confirmation, the configuration command of the next frame cannot be changed immediately after the FB position is found (that is, the task of searching for FB is changed to the task of receiving SB), and it is necessary to wait for SB to appear again after 10 to 11 frames before receiving SB and performing SB accuracy Position search and BSIC decoding complete the initial confirmation of BSIC, so the confirmation time is long and the position of SB is also uncertain

Images