초록 ▼

The invention relates to the use of CDMA techniques. Data signals to be transmitted from a plurality of wireless devices are spread across a common bandwidth. The data signals are received by a base station as a composite spread signal. The base station partially despreads the composite spread signa

The invention relates to the use of CDMA techniques. Data signals to be transmitted from a plurality of wireless devices are spread across a common bandwidth. The data signals are received by a base station as a composite spread signal. The base station partially despreads the composite spread signal with unique codes to extract data signals from individual wireless devices. The data rate and quality of service requirements for each wireless device are used to calculate a power factor and a control signal is sent to control the power from a particular wireless device. In addition, a probability of transmission value is calculated based on an equivalent current load value and an equivalent population value. The probability of transmission value determines whether a particular wireless device is allowed access to an uplink frequency channel.

대표청구항 ▼

[ We claim:] [1.] A base station for controlling access by wireless devices of mixed types to an uplink frequency channel comprising:a transmitting antenna;a receiving antenna;a despreader which receives a composite spread signal from the receiving antenna and uses unique codes to partially despread

[ We claim:] [1.] A base station for controlling access by wireless devices of mixed types to an uplink frequency channel comprising:a transmitting antenna;a receiving antenna;a despreader which receives a composite spread signal from the receiving antenna and uses unique codes to partially despread the composite spread signal, each unique code corresponding to a particular wireless device;a first processor for determining the type of each particular wireless device; anda second processor for updating a current load value and a population value for each type of wireless device, the second processorstoring the current load values and population values for each type of wireless device;determining a current load share for each type of wireless device;determining a population share for each type of wireless device; anddetermining an equivalent current load value and an equivalent population value for all types of wireless devices admitted by the base station, wherein the equivalent current load value is proportional to the sum of the current load shares and the equivalent population value is proportional to the sum of the population shares, andwherein indicia of the equivalent current load value and the equivalent population value are sent to the transmitting antenna for transmission to wireless devices.