| 摘要 |
A novel method and apparatus for achieving optimum capacity and stability in IS-95-B based medium data rate systems. Each user served by a base station is allocated a constant portion of available transmission power. A data are transmitted to each user at this allocated transmission power and a data rate is varied in accordance with the user's channel condition. This strategy removes the variation in transmission power when a user switches between a maximum and minimum rate, thus increasing stability and capacity of the system. The capacity is further increased by allocating a constant portion of a total available transmission power of a base station is allocated to a power for data transmission power for data transmission on a fundamental forward channel and a power for transmission on supplemental forward channels. Each user is allocated one fundamental channel. Rate of transmission of data to a user is varied by allocating supplemental forward channels based on the RF conditions of a communication link and the required data rate of each of the user. The allocation is controlled by a scheduling method. In another aspect of the invention the base station, transmitting on a fixed power is allowed to gradually adjust this fixed power to allow changes in a long term data throughput. |
