A resource allocation method and device

Abstract

The present invention provides a method and device for resource allocation. The method is: if there are T remaining time-frequency resources of data transmission time (symbol) in the time domain range occupied by the previous type of downlink sub-transmission block, then Among the remaining time-frequency resources of T symbols, allocate time-frequency resources to the current type of downlink sub-transport blocks in a fixed order in the frequency domain direction; if the remaining time-frequency resources of the T symbols are not enough to allocate the current type of downlink The sub-transport block continues to allocate the time-frequency resources of the next T symbols to the current type of downlink sub-transport block in a fixed order in the frequency domain direction; the downlink sub-transport block uses T symbols as the smallest unit in the time domain, In the frequency domain, F subcarriers are used as the minimum unit, the number of symbols in the downlink frame is an integer multiple of T, and the number of subcarriers in the entire bandwidth is an integer multiple of F, thereby avoiding waste of time-frequency resources and simple implementation.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a resource allocation method and device. Background technique [0002] In communication systems, some resources are scarce resources: for example, in Global System for Mobile Communications (GSM), frequency resources are scarce resources; in Wideband Code Division Multiple Access (WCDMA) systems, Code Division Multiple Access (CDMA) code resources , power and frequency are the scarce resources of the system. In a Wireless Metropolitan Area Network (WiMAX, Worldwide Interoperability for Microwave Access) system, two-dimensional resources composed of data transmission time and frequency, power, etc. are scarce resources of the system. Within a system, whether scarce resources are fully utilized reflects whether the system has good performance. [0003] In the WiMAX system, downlink data sent from a base station (BS) to a mobile terminal (MS) is sent in units of frames. ...

AI Technical Summary

Problems solved by technology

The waste of time-frequency resources between downlink bursts is caused by the fact that the time-frequency resources occupied by a type of burst must be rectangular, so the downlink bursts must be allocated to the remaining time-frequency resources that can accommodate the downlink bursts, and may There will be a situation where the remaining time-frequency resources are not enough to allocate any downlink burst

Although in the prior art, it is possible to calculate the waste of time-frequency resources between all bursts in the downlink frame to select the method with the lowest waste to allocate time-frequency resources, this method still cannot avoid the waste of time-frequency resources, and the calculation is complicated

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