Code detection

Abstract

A code transmitted in a wireless format is to be detected. A power level associated with the code is determined. The determined power level is compared with a plurality of thresholds. A test statistic is increased or decreased based on which of the thresholds that the determined power level falls within. If the test statistic exceeds an acceptance threshold, the code is deemed acquired. If the test statistic is below a dismissal threshold, the code is deemed not present. If the test statistic does not exceed the acceptance threshold and the test statistic is not below the dismissal threshold, the testing for the code is repeated.

1 . A subscriber unit comprising:
 circuitry configured to receive at least one first bit and second bits on a channel; wherein the at least one first bit is a flag and the second bits indicates an amount of data; wherein the flag has a first value indicating that the subscriber unit is allowed to transmit data or at least one second value indicating that the subscriber unit is not allowed to transmit data; and   the circuitry further configured on a condition that the flag has the first value to transmit data on a reverse link based on the amount of data indicated by the second bits.   
     
     
         2 . The subscriber unit of  claim 1  wherein the second bits indicate an increment of data. 
     
     
         3 . The subscriber unit of  claim 1  wherein the flag and the indicated amount of data are updated dynamically. 
     
     
         4 . The subscriber unit of  claim 1  wherein the flag is further configured to indicate an availability of an access channel. 
     
     
         5 . The subscriber unit of  claim 1  wherein the reverse link is a code division multiple access reverse link. 
     
     
         6 . The subscriber unit of  claim 1  wherein the channel is a control channel. 
     
     
         7 . The subscriber unit of  claim 6  wherein the control channel is a broadcast channel. 
     
     
         8 . A method comprising:
 receiving, by a subscriber unit, at least one first bit and second bits on a channel; wherein the at least one first bit is a flag and the second bits indicates an amount of data; wherein the flag has a first value indicating that the subscriber unit is allowed to transmit data or at least one second value indicating that the subscriber unit is not allowed to transmit data; and   transmitting data on a reverse link based on the amount of data indicated by the second bits, by the subscriber unit, on a condition that the flag has the first value.   
     
     
         9 . The method of  claim 8  wherein the second bits indicate an increment of data. 
     
     
         10 . The method of  claim 8  wherein the flag and the indicated amount of data are updated dynamically. 
     
     
         11 . The method of  claim 8  wherein the flag is further configured to indicate an availability of an access channel. 
     
     
         12 . The method of  claim 8  wherein the reverse link is a code division multiple access reverse link. 
     
     
         13 . The method of  claim 8  wherein the channel is a control channel. 
     
     
         14 . The method of  claim 13  wherein the control channel is a broadcast channel. 
     
     
         15 . A base station comprising:
 circuitry configured to transmit at least one first bit and second bits on a channel; wherein the at least one first bit is a flag and the second bits indicates an amount of data; wherein the flag has a first value indicating that a subscriber unit is allowed to transmit data or at least one second value indicating that the subscriber unit is not allowed to transmit data; and   the circuitry further configured on a condition that the flag has the first value to receive data on a reverse link based on the amount of data indicated by the second bits.   
     
     
         16 . The base station of  claim 15  wherein the second bits indicate an increment of data. 
     
     
         17 . The base station of  claim 15  wherein the flag and the indicated amount of data are updated dynamically. 
     
     
         18 . The base station of  claim 15  wherein the flag is further configured to indicate an availability of an access channel. 
     
     
         19 . The base station of  claim 15  wherein the reverse link is a code division multiple access reverse link. 
     
     
         20 . The base station of  claim 15  wherein the channel is a control channel. 
     
     
         21 . The base station of  claim 20  wherein the control channel is a broadcast channel.