Method for implementing base station access by terminal, terminal and base station for implementing the method

Abstract

The invention discloses a method for realizing a terminal accessing to a base station, and a terminal and a base station that realize the method, wherein, the method comprises that: the terminal sends an initial ranging code to the base station, and requests the base station to distribute an initial ranging request bandwidth; under a condition that the base station satisfies a reverse receiving signal-to-noise ratio request, when the number of maximum sub-channels distributed to the terminal by the base station is less than the number of the sub-channels occupied by initial ranging request information, the base station distributes a sub-channel with a number less than that of the maximum sub-channels to the terminal, and informs the terminal to divide the initial ranging request information into a plurality of parts through the sub-channel being distributed and then sends the parts to the base station; the terminal divides the initial ranging request information into a plurality of parts through the sub-channel being distributed and then sends the parts to the base station, or the terminal completely transmits the initial ranging request information to the base station by one time through continuously increasing transmit power and carries out basic capacity negotiation with the base station so as to access to the base station. By the method of the invention, reverse gain and coverage can be increased, and success rate that the terminal accesses to the base station can also be increased.

Description

technical field [0001] The present invention relates to the communication field, and more specifically relates to a method for realizing a terminal accessing a base station, and a terminal and a base station for realizing the method. Background technique [0002] In recent years, Orthogonal Frequency Division Multiplexing (OFDM) technology has become the mainstream technology of wireless communication physical layer technology because it can effectively resist multipath interference and narrowband interference, and has high spectrum efficiency. Orthogonal Frequency Division Multiple Access (OFDMA) + Multiple Input Multiple Output (MIMO) technology has natural technical advantages over the third-generation Code Division Multiple Access (CDMA) technology, and is more suitable for broadband mobile communication systems. It is recognized as the One of the core technologies of the next generation mobile communication system. Worldwide Interoperability for Microwave Access (WiMAX...

AI Technical Summary

Problems solved by technology

At this time, because the management message on the basic connection cannot be fragmented in reverse, the ranging request message or the basic capability negotiation request message is too large, resulting in an increase in the number of occupied sub-channels and a decrease in sub-channel gain, resulting in data that cannot meet the requirements of QPSK1 / 2. demodulation requirements, the access process will not be completed, causing the terminal to be unable to access and affecting reverse coverage

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