CDMA communication device for improving the usability of frequencies and suppressing the occurrence of call loss
First Claim
1. A CDMA communication device for assigning any of a plurality of frequencies as a working frequency of a user, and using the assigned frequency to modulate and transmit the user data of said user, said CDMA communication device comprising:
- a spreading means for spreading and multiplexing the user data of said user;
a plurality of radio transmission means that are each provided correspondingly to each of said plurality of frequencies for modulating with said frequencies said user data that have been supplied as output from said spreading means; and
a control means that includes a determination means for determining the working frequency of said user based on the spreading factor of said user data in said spreading means; and
a setting means for setting the spreading factor of said user data in said spreading means and performing settings of said spreading means such that said user data are supplied as output to said radio transmission means that is provided correspondingly to the frequency that has been determined by said determination means.
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Accused Products
Abstract
The CDMA communication device of the present invention includes a spreading unit, radio transmitters, and a control device that includes a setting unit and a determination unit. The spreading unit spreads and multiplexes user data of users. The radio transmitters are provided correspondingly to each of a plurality of frequencies, and modulate with the corresponding frequencies the user data that are supplied from the spreading unit. The determination unit determines the working frequency of users based on the spread factor value of the user data. The setting unit sets the spread factor of the user data in the spreading unit. The setting unit further performs setting of the spreading unit such that user data that have undergone spreading are supplied to the radio transmitter that has been provided correspondingly to the frequency determined by the determination unit.
58 Citations
8 Claims
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1. A CDMA communication device for assigning any of a plurality of frequencies as a working frequency of a user, and using the assigned frequency to modulate and transmit the user data of said user, said CDMA communication device comprising:
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a spreading means for spreading and multiplexing the user data of said user;
a plurality of radio transmission means that are each provided correspondingly to each of said plurality of frequencies for modulating with said frequencies said user data that have been supplied as output from said spreading means; and
a control means that includes a determination means for determining the working frequency of said user based on the spreading factor of said user data in said spreading means; and
a setting means for setting the spreading factor of said user data in said spreading means and performing settings of said spreading means such that said user data are supplied as output to said radio transmission means that is provided correspondingly to the frequency that has been determined by said determination means. - View Dependent Claims (2, 3, 4)
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5. A CDMA communication method in a CDMA communication device for assigning any of a plurality of frequencies as a working frequency of a user and using the assigned frequency to modulate and transmit user data of said user, said method comprising:
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a first step of spreading and multiplexing the user data of said user;
a second step of deciding the working frequency of said user based on a spreading factor of said user data in said first step; and
a third step of modulating user data that has undergone spreading and multiplexing in said first step with the frequency, which was decided as the working frequency of said user in said second step. - View Dependent Claims (6, 7, 8)
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Specification