Patent ID: 7319687
Filing Date: 2008-01-15
Classification: H04L,H04W

Abstract:
1. A wireless Local Area Network (LAN) system comprising: a plurality of wireless LAN base stations, each of which is connected with wireless terminals via a wireless LAN; and a host apparatus which controls call originations of said wireless terminals via said plurality of wireless LAN base stations, the host apparatus connected wirelessly to each LAN base station, wherein each of said plurality of wireless LAN base stations comprises: wireless LAN I/F circuit that receives data transmitted from a wireless terminal; a priority queue table which contains relations between headers of data and priorities and in which priority queue table the headers and the related priorities of the data are associated to each other; a header analyzing circuit which determines a priority of data transmitted from a wireless terminal on the basis of a comparison of a header of the data transmitted from the wireless terminal to a corresponding header and the related priority of the corresponding header that is stored in said priority queue table, wherein the header analyzing circuit analyzes the header of the data received by the wireless LAN I/F circuit and determines that the data are priority data based on finding the same header as the header of the received data in the priority queue table and the related priority of the same header; priority queues which temporarily store data of respective priorities based on the analysis of the header analyzing circuit; a first control circuit connected to receive the analysis of the header analyzing circuit and which enqueues the data transmitted from the wireless terminal to the priority queue of the priority determined on the basis of the received analysis of said header analyzing circuit and updates said priority queue table on the basis of priority information transmitted from said host apparatus; and a transmission control circuit which transmits the data which have been stored in said priority queues in order of priority to a destination terminal and transmits said priority queue table to the host apparatus, wherein said host apparatus comprises: a queue information table which contains contents of said priority queue tables of said plurality of wireless LAN base stations, the contents of said priority queue tables being transmitted from said transmission control circuit of each wireless LAN base station; and a second control circuit which determines a priority of data to be transmitted between wireless terminals on the basis of said queue information table and transmits said priority information containing the determined priority and side information to at least one of said plurality of wireless LAN base stations via which the data to be transmitted between the wireless terminals route.