Method and apparatus for resource allocation and terminal access in time-division sharing channel

Abstract

Provided is a resource allocation and terminal access method in the time division sharing channel and a device thereof. In the invention, the system determines the corresponding superframe according to the structure of the frame, allocates the system using the superframe as the period for the terminal, and updates the resource allocation corresponding to the terminal using the superframe as the period, wherein the superframe includes one or a plurality of subframe(s) in the system. Moreover, the terminal accessed into the system performs the synchronization (including a physical layer synchronization and a MAC layer synchronization) and communication with the station using the superframe as the period. Therefore, the invention provides the backward compatible resource allocation aiming at the terminal of the disturbed wireless system, simplifies the process of the terminal and effectively reduces the implement complexity of the terminal.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a resource allocation and terminal access technology in a time-division shared channel. Background technique [0002] In a wireless communication system, a wireless device supporting cognitive wireless technology can improve the utilization rate of the wireless spectrum, especially the spectrum utilization rate of the licensed frequency band. The wireless device supporting the cognitive radio technology can dynamically perceive the surrounding environment, and adaptively and dynamically adjust its internal state according to the change of the environment, so as to effectively use the idle frequency spectrum and avoid interference to other systems. [0003] At present, due to limited wireless spectrum resources and system planning reasons, there will be multiple wireless devices operating on the same channel, resulting in mutual interference between systems. To avo...

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Problems solved by technology

[0013] and figure 1 , figure 2 and image 3 Under the shown time-sharing shared channel structure, for a terminal in a non-interference area, it can receive the preamble and signaling through the common subframe, but for a terminal in a common coverage area of ​​multiple systems (that is, an interference area) Due to the interference of neighboring systems, the terminal cannot correctly receive the preamble and signaling of the base station frame header in the common subframe. Therefore, the base station also needs to send the preamble and signaling to the terminal in the interference area through the main subframe

[0014] In this way, in order to meet the requirements of terminals in the interference area and in the non-interference area, the base station needs to send the Preamble and signaling in the main subframe, common subframe or shared subframe at the same time, which makes the terminal need to maintain two different The subframe header and two MAPs increase the implementation complexity of the terminal

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