Carrier wave selection method and associated apparatus

Abstract

The present invention relates to a carrier wave selection method and an associated apparatus. The method herein comprises the following steps: acquiring a first carrier wave combination which includes all carrier waves distributed by a base station to a terminal; acquiring carrier wave priority of the first carrier wave combination with a priority adjusting circle in the current wireless block circle; acquiring a maximum carrier wave interval of a first frame in the first carrier wave combination in the current wireless block circle, the maximum carrier wave interval resulted acting as a first maximum carrier interval; if the maximum carrier wave interval does not meet requirements of bandwidth constraints of a receiver of the terminal, removing a minimum carrier wave of priority from the first carrier wave combination; or if the maximum carrier wave interval meets requirements of bandwidth constraints of the receiver of the terminal, acquiring a maximum carrier wave interval of a second frame in the first carrier wave combination in the current wireless block circle, the maximum carrier wave interval resulted acting as a second maximum carrier wave interval; if the second maximum carrier wave interval does not meet requirements of bandwidth constraints of the receiver of the terminal, removing the minimum carrier wave of priority from the first carrier wave combination. The method herein can decrease complexity of carrier wave selection.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and in particular, to a carrier selection method and a related device. Background technique [0002] In the Global System for Mobile Communication (GSM, Global System for Mobile communication), the frequency band allocated by the system is divided into multiple frequency points with a bandwidth of 200kHz, which are distinguished by the Absolute Radio Frequency Channel Number (ARFCN, Absolute Radio Frequency Channel Number) Each frequency point is also called a frequency point number. Each time slot of the GSM system can carry a traffic channel (TCH, Traffic Channel), and a frequency point can provide up to 8 channels of full-rate voice services, and 8 consecutive time slots are called a time division multiple access (TDMA, Time Division Multiple Access). Division Multiple Access) frame, the manifestation of the GSM carrier in each time slot is called a burst (burst). [0003]...

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Problems solved by technology

[0006] The complexity of the traversal method used in the above-mentioned prior art is too high. When the total number of carriers is relatively large, the calculation amount will increase sharply. For example, when the base station allocates 6 carriers to the terminal, there are 6 combinations of 5 carriers, and 4 There are 15 cases of carrier combination or 2 carrier combinations, and 20 cases of 3 carrier combinations. For each case, it is necessary to judge whether the carrier combination meets the receiver bandwidth limit requirement. When the number of carriers increases, the complexity of carrier selection will be higher

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