Patent ID: 8792467

Claim:
A method for downlink sub-frame allocation in an evolved Worldwide Interoperability for Microwave Access (WiMAX) system, wherein the evolved WiMAX system is a backward compatible IEEE802.16m system and hereinafter the IEEE802.16m is referred to as 16m for short, the method for downlink sub-frame allocation comprising: setting a 16m frame start offset as a parameter of a deployment area range, and setting a starting location of a 16m frame by each 16m base station within a same deployment area range in the system according to the 16m frame start offset; always allocating a start sub-frame of the 16m frame by the 16m base station as a 16m downlink sub-frame, and sending a super frame header including a synchronization symbol at the starting location of a first frame of a super-frame, wherein the method further comprising: determining by the 16m base station a ratio of 16m downlink sub-frames to IEEE 802.16e downlink sub-frames in the 16m frame according to requirements of current 16m service and IEEE 802.16e service, and hereinafter the IEEE802.16e is referred to as 16e for short.