Method, system and device for allocating and measuring gap

Abstract

The embodiment of the invention discloses a method, a system and a device for allocating and measuring a gap, and belongs to the field of communication. The method comprises the following steps: utilizing a terminal to acquire the moment of a system frame number SFN of a target cell, switchover time, gap activation time startSFN set by the target cell and the effective allocation range of the startSFN; acquiring an execution range of the startSFN according to the moment when the target cell receives a switchover request and the effective allocation range of the startSFN which are acquired through calculation; and judging whether the acquired startSFN is in the execution range or not, and if the acquired startSFN is in the enforcement range, executing the measurement based on the gap. The system comprises the terminal and a base station. The device comprises an acquisition module, a judgment module and an execution module. Through various modes, such as arranging the effective allocation range for the gap activation time startSFN, arranging the final expiration time that the terminal acquires the system frame number SFN of the target cell, setting the restart time point of executingthe measurement based on the gap, arranging the time of taking effect again of executing the measurement based on the gap and the like, the method, the system and the device achieve that the terminaland the target cell are consistent for executing the measurement based on the gap so as to avoid confusion.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, system and equipment for configuring measurement gaps. Background technique [0002] In the UMTS (Universal Mobile Telecommunications System, Universal Mobile Communications System) system, during the handover process of the terminal from the source cell to the target cell, the target cell will re-deliver measurement configuration information. Therefore, the measurement configuration previously delivered by the source cell will be no longer valid. However, in the current LTE (Long Term Evolve, long-term evolution system), the above-mentioned measurement configuration issued by the source cell can continue to be valid. In addition, the target cell can issue the measurement configuration information to the terminal before the terminal performs handover through a handover command , so that the terminal can perform the configuration measurement of the target cell after re...

AI Technical Summary

Problems solved by technology

[0012] However, the inventors found that, see figure 1 , due to the periodicity of SFN, so when there is SFN cycle around (period around refers to SFN incremented from 0 to 1023, and then returns to 0, 1... until 1023, and so on), when the terminal analyzes the obtained startSFN, it will Causes errors, resulting in inconsistent gap configurations used by the base station of the target cell and the terminal, causing confusion. For example, the terminal reads that the SFN of the target cell is 2, and the configured activation time startSFN=1022. At this time, the terminal can be regarded as the previous SFN The 1022 of the cycle, that is, the gap measurement needs to be started now, or it can be considered as the 1022 of the current cycle, that is, it will take a while to start the gap measurement

[0013] If gap-based measurement is to be performed, the terminal needs to know the SFN of the target cell, but the existing technology does not solve the problem of the terminal reading the SFN of the target cell

[0014] On the other hand, there is still a problem that gap-based measurement is difficult to be implemented in the existing technology

On the other hand, in the process of terminal RA (Random Access, random access) in the prior art, the base station side of the target cell may not be able to identify the terminal, therefore, there is still the problem of how to reactivate the gap

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