CODE DIVISION MULTIPLE ACCESSING METHOD AND DEVICE

• Main Authors: NAKASE HIROYUKI, KUDO EISUKE, HATTORI TAKESHI, OGOSE SHIGEAKI
• Format: Patent
• Language: English
• Published: 24.03.1998
• Edition: 6
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

PROBLEM TO BE SOLVED: To simultaneously enable service of both radio communications by separately allocating plural diffusion codes to each diffusion code for a control channel and for a traffic channel of radio communications of line switching and packet switching among used diffusion codes. SOLUTION: A diffusion code controller 44 allocates diffusion codes of communication form series to traffic channels for a line switching communication and a packet switching communication in accordance with a communication request, stores them in each allocation setting storage device 47 and 48, changes the number of allocations in accordance with a request from a radio equipment 43 and secures a traffic channel of each radio communication. In allocation of diffusion codes to a control channel, when each communication form is separately controlled, a different control diffusion code is allocated to each communication form, and when a communication request that simultaneously uses both communication forms occurs, a diffusion code which commonly controls both is allocated. Thereby, both communication forms are simultaneously realized and also communication disability that is caused by the lack of diffusion codes can be avoided.