Method and device for signal switching between different frequency point numbers of the same physical frequency point

Abstract

The present invention discloses a signal switching method and device between different frequency point numbers of a same physical frequency point. The method is characterized in that when a terminal receives a network resource reconfiguration message sent by a base station side, the random access is not carried out on a new absolute frequency point number, while a first absolute frequency point number corresponding to a currently used physical frequency point in a first band, is determined, and after a second absolute frequency point number corresponding to the physical frequent point in a second band supported by the terminal itself, is calculated, the new absolute frequency point number is switched to automatically, thereby avoiding the time delay increase caused by carrying out the random access on the new frequency point number; moreover, the terminal switches to the second band based on the second absolute frequency point number, and carries out the sending compensation on the second band according to the known situation that the channel characteristics of the first and second bands are poor, thereby guaranteeing the normal data sending on the new absolute frequency point number.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for switching signals between different frequency point numbers at the same physical frequency point. Background technique [0002] At present, since the frequency ranges and frequency planning methods used by mobile services in different regions or countries are not the same, therefore, between different regions, different frequency bands in the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) system The physical frequency ranges may overlap, but the absolute frequency point numbers used are different. [0003] Table 1, physical frequency points corresponding to different frequency bands and corresponding frequency point numbers [0004] [0005] Specifically, as shown in Table 1, different regions have different frequency band (Band) division methods, which are respectively called Band1, Band 12, Band 6...

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Problems solved by technology

[0010] The embodiment of the present invention provides a method and device for switching between different frequency numbers at the same physical frequency point, so as to solve the problem that the signal switching delay is too long in the case of random access of the terminal, and the situation that the terminal switches signals autonomously The success rate of downlink and uplink data transmission is too low

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