Radio communication device and mobile communication system
AssigneeOki Electric Industry Co., Ltd.
InventorMasami Abe
Life of this patent
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Abstract
A mobile communication system includes a base station and mobile stations divided into a plurality of groups. A radio communication device 10 at the base station spreads framed control information using a spreading code, and then transmits it via a control channel to the mobile stations. The radio communication device 10 includes a header spreading code generating section 16 which produces mutually different two spreading codes, and further includes a header adding section 17 which, using the mutually different two spreading codes, double-spreads information about allocation of an access right to corresponding one of the groups and adds the double-spread information as a frame header to a frame body representing the foregoing framed and spread control information.
Claims14
A radio communication device for a base station, wherein control information is framed and spread by a spreading code, and then transmitted via a control channel to mobile stations which are divided into a plurality of groups, said radio communication device comprising:
- a header spreading code generating section which produces two mutually different spreading codes;
- and
- a header adding section applying said two mutually different spreading codes, such that information about allocation of an access right to a corresponding one of said groups is double-spread. said double-spread information being added as a frame header to a frame body representing said framed and spread control information.
A radio communication device provided at each of mobile stations divided into a plurality of groups, said radio communication device receiving control information sent from a base station via a control channel in the form of frames, each of said frames including a frame header representing header information about allocation of an access right, said header information being spread by each of two mutually different spreading codes, said radio communication device comprising:
- a despreading section which despreads said header information of the received control information using said two mutually different spreading codes;
- and
- an access right detecting section which, based on said header information despread at said despreading section, judges whether the access right is allocated to the subject mobile station.
Dependencies are inferred from the claim text.