Asymmetric channel allocation for a mobile station in a CDMA communication network
AssigneeSamsung Electronics Co., Ltd.
InventorsYoungky Kim, Jaemin Ahn, Heewon Kang
Life of this patent
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Abstract
In a CDMA-based communication system, a system and method for allocating channel bandwidths and chip rates. The system and method supports asymmetric bandwidths and chip rates for the forward and reverse channels. The system and method includes a negotiation process between a mobile station and a base station to select chip rates and bandwidths for use in the forward and reverse channels.
Claims32
A code division multiple access (CDMA) system comprising:
- a base station transmitting forward link data utilizing a forward channel link chip rate and receiving reverse link data utilizing a reverse channel link chip rate;
- and
- a mobile station transmitting the reverse link data by using the reverse channel link chip rate and receiving the forward link data by using the forward channel link chip rate, wherein the forward channel link chip rate is asymmetrical to the reverse channel link chip rate.
A method of operating a CDMA system comprising the steps of:
- setting up a call to a base station operating to support a basic chip rate, a maximum forward channel link chip rate, and a maximum reverse channel link chip rate by paging said base station with a mobile station;
- requesting a desired forward channel link chip rate from said base station by said mobile station;
- transmitting said maximum forward channel link chip rate to said mobile station from said base station;
- transmitting a revised forward channel link chip rate to said base station from said mobile station;
- transmitting a start message to said mobile station from said base station;
- and
- communicating with said base station using said revised forward channel link chip rate.
A method of operating a CDMA system comprising the steps of:
- setting up a call to a mobile station operating to support a basic chip rate, a maximum forward channel link chip rate, and a maximum reverse channel link chip rate by paging said mobile station with a base station;
- requesting a desired forward channel link chip rate from said mobile station by said base station;
- transmitting said maximum forward channel link chip rate to said base station from said mobile station;
- transmitting a revised forward channel link chip rate to said mobile station from said base station;
- transmitting a start message to said base station from said mobile station;
- and
- communicating with said mobile station using said revised forward channel link chip rate.
A code division multiple access (CDMA) system comprising:
- a base station transmitting forward link data by using a forward channel link bandwidth and receiving reverse link data by using a reverse channel link bandwidth;
- and
- a mobile station transmitting the reverse link data by using the reverse channel link bandwidth and receiving the forward link data by using the forward channel link bandwidth,
- wherein the forward channel link bandwidth is asymmetrical to the reverse channel link bandwidth.
Dependencies are inferred from the claim text.