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 Communication method and communication equipment

Details
Inventors: Watanabe, Kouji; Ishifuji, Tomoaki;
Assignee: Hitachi, Ltd. (Tokyo, JP)
Primary Examiner: Nguyen; Chua
Assistant Examiner: Nguyen; Phuong Chua Ba
Attorney, Agent or Firm: Antonelli, Terry, Stout & Kraus, LLP

An object of the present invention is to improve transmission efficiency of a communication system for forming a transmission frame from a plurality of packets to perform communications using the transmission frame and reduce transmission power required to maintain an error rate. Headers of the plurality of packets are coupled to each other with redundancy information deleted therefrom so as to form a header part of the transmission frame. Further, payloads of the plurality of packets are coupled to each other so as to form a payload part of the transmission frame. A forward error correction code used for the header part and a forward error correction code used for the payload part are respectively attached to the transmission frame in isolation.

DETAILED DESCRIPTION In order to achieve an object of the present invention, there is provided a communication method employed in a communication system comprising a base station for transmitting and receiving data through packets each having a header part and a payload part, and a terminal station for communicating with the base station through a wireless channel or a wired channel, wherein the base station communicates with the terminal station through a transmission frame comprised of a plurality of packets, and the transmission frame has a preamble, a frame header part comprised of headers of the plurality of packets, a frame header part error correction code, a frame payload part comprised of payloads of the plurality of packets, and a frame payload part error correction code.
Since the frame header part that makes up the major portion of information added to the transmission frame in terms of the number of bytes, is formed by the headers of the packets, the number of the bytes results in a slight increase, thereby making it possible to solve the problems of the prior arts.
It is desirable that when pieces of information about VPI, VCI, HEC and the region (to be described later), which constitute the header of each packet, overlap each other, the overlapping information are deleted and the frame header part is formed by information inherent in each packet.
A further reduction in the number of bytes can be realized.
These and other objects and many of the attendant advantages of the invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings.



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