Method for determining system frame number, communication system and device

A system frame number, communication system technology, applied in the direction of communication between multiple stations, wireless communication, electrical components, etc., can solve the problems of no provision, suspension, etc.

Active Publication Date: 2014-12-10
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the CR scenario, when the cell switches the working frequency, although the UE still accesses the same base station, the communication between the base station and the UE will be suspended for a period of time. How to determine the system frame number SFN during the period of communication suspension, there is currently no Provide corresponding technical solutions, and how to determine the system frame number is one of the technical problems that need to be solved urgently in order to enable the UE to correctly access the base station after switching to the new operating frequency

Method used

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  • Method for determining system frame number, communication system and device
  • Method for determining system frame number, communication system and device
  • Method for determining system frame number, communication system and device

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Embodiment Construction

[0028] This application aims at the problem that the UE needs to determine the system frame number when the frequency switching occurs in the cell, and proposes the system frame number configuration method and signaling process when the UE works on the new working frequency F2, so that the UE can correctly switch to the new working frequency. Access to the base station, and because the time gap and SFN configuration for completing cell switching will have an impact on Discontinuous Reception (DRX) and Semi-Persistent Scheduling (SPS), this application also provides a method for determining the start time of DRX and SPS cycles .

[0029] When the cell switches the working frequency, the time point when the base station stops working on the original working frequency F1 is marked as T1 time, the SFN value at T1 time is marked as S1, and the time point when the base station starts working on the new working frequency F2 is marked as T2 time, T2 The SFN value at the moment is deno...

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Abstract

The embodiment of the invention discloses a method for determining a system frame number, a communication system and a device, which are applied to scenes that a cell switches the working frequency. The method comprises the following steps: stopping from a base station within a time slot from a time point T1 moment worked in the original working frequency F1 to a time point T2 moment worked in the new working frequency F2, and determining a system frame number S2 at the T2 moment by continuously counting or pausing the counting on the basis of a system frame number S1 at the T1 moment; or resetting the system frame number T2 at the T2 moment as a convention value. By adopting the method provided by the invention, UE (user equipment) can determine the system frame number when the cell is switched, thus the UE can be easy to be switched to the new working efficiency and then accurately accessed to the base station.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method for determining a system frame number, a communication system and equipment. Background technique [0002] In the scenario where the cellular network uses cognitive radio technology to share spectrum resources (CR) with other spectrum licensing systems, when the spectrum licensing system re-occupies the frequency resources, the cell will switch the working frequency, that is: the base station and the user in the cell of the cellular network A device (UE) needs to stop communication on the original working frequency, and then establish communication on a new idle frequency. The process of switching the working frequency between the base station and the UE takes a certain amount of time for the base station and the UE to change the radio frequency and perform related processing, such as buffering data, resetting the device, and restarting the system broadcast on the new f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26H04W74/00
Inventor 陈星高有军胡南
Owner CHINA MOBILE COMM GRP CO LTD
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