AUTOMATIC POWER CONTROL SYSTEM FOR A CODE DIVISION MULTIPLE ACCESS (CDMA) COMMUNICATIONS SYSTEM
First Claim
Patent Images
1. A code division multiple access (CDMA) subscriber unit comprising:
- circuitry configured to receive at least one power control bit from a downlink channel, wherein the at least one power control bit indicates either an increase or decrease in transmission power level; and
circuitry configured to adjust a transmission power levels of both a traffic channel and a reverse control channel, based on the value of the at least one power control bits wherein the transmission power levels of the traffic channel and the reverse control channel are different.
0 Assignments
0 Petitions
Accused Products
Abstract
A receiver receives signals and noise over a frequency spectrum of a desired received signal. The desired received signal is spread using code division multiple access. The received signals and noise are demodulated to produce a demodulated signal. The demodulated signal is despread using a code uncorrelated with a code associated with the desired received signal. A power level of the despread demodulated signal is measured as an estimate of the noise level of the frequency spectrum.
-
Citations
6 Claims
-
1. A code division multiple access (CDMA) subscriber unit comprising:
-
circuitry configured to receive at least one power control bit from a downlink channel, wherein the at least one power control bit indicates either an increase or decrease in transmission power level; and circuitry configured to adjust a transmission power levels of both a traffic channel and a reverse control channel, based on the value of the at least one power control bits wherein the transmission power levels of the traffic channel and the reverse control channel are different. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification