Method and System for a Programmable Biasing Mechanism for a Mobile Digital Television Environment

Abstract

Certain aspects of a method and system for programmable biasing mechanism for a mobile digital television environment are disclosed. Aspects of one method may include controlling a bias of components within each of a plurality of radio frequency (RF) front-ends that comprise low noise amplifiers (LNAs) integrated within a single chip multi-band RF receiver, and of components within each of a plurality of baseband processors integrated within the single chip multi-band RF receiver. The controlling of the bias is based on signal power measurements within the integrated RF front-ends and within the baseband processors, and each of the plurality of RF front-ends handles processing of at least one of: a received UHF signal and a received L-band signal.

1 - 26 . (canceled) 
   
   
       27 . A method for processing signals in a communication system, the method comprising:
 in a single chip multi-band radio frequency (RF) receiver operable to process received signals in a ultra-high frequency (UHF) band and a L-band:
 controlling a bias of components within a RF front-end and a baseband processor based on determining a signal power within said RF front-end and said baseband processor. 
   
   
   
       28 . The method according to  claim 27 , comprising controlling said bias of components based on comparing said determined signal power with a threshold value. 
   
   
       29 . The method according to  claim 27 , comprising determining said signal power at an output of each low noise amplifier (LNA) in said RF front-end. 
   
   
       30 . The method according to  claim 27 , comprising directly converting one or both of: said received signals in said UHF band and/or said L-band to a baseband signal. 
   
   
       31 . The method according to  claim 27 , comprising determining low frequency voltage at an output of at least a portion of each of said components within said baseband processor. 
   
   
       32 . The method according to  claim 27 , comprising determining whether one or both of: said received signals in said UHF band and/or said L-band comprise a blocker signal based on said determined signal power. 
   
   
       33 . The method according to  claim 32 , comprising decreasing said bias of at least one low noise amplifier (LNA), if said blocker signal is below a first threshold value and one or both of: said received signals in said UHF band and/or said L-band is below a second threshold value. 
   
   
       34 . The method according to  claim 32 , comprising increasing said bias of at least one low noise amplifier (LNA), if said blocker signal is below a first threshold value and one or both of: said received signals in said UHF band and/or said L-band is above a second threshold value. 
   
   
       35 . The method according to  claim 32 , comprising decreasing said bias of at least one low noise amplifier (LNA), if said blocker signal is above a first threshold value and one or both of: said received signals in said UHF band and/or said L-band is above a second threshold value. 
   
   
       36 . The method according to  claim 32 , comprising increasing said bias of at least one low noise amplifier (LNA), if said blocker signal is above a first threshold value and one or both of: said received signals in said UHF band and/or said L-band is below a second threshold value. 
   
   
       37 . The method according to  claim 27 , comprising receiving one or more cellular signals in said UHF band. 
   
   
       38 . The method according to  claim 27 , comprising receiving one or more Global Navigation Satellite System (GNSS) signals in said L-band. 
   
   
       39 . A system for processing signals in a communication system, the system comprising:
 one or more circuits within a single chip multi-band radio frequency (RF) receiver that are operable to process received signals in a ultra-high frequency (UHF) band and a L-band; and   said one or more circuits are operable to control a bias of components within a RF front-end and a baseband processor based on determining a signal power within said RF front-end and said baseband processor.   
   
   
       40 . The system according to  claim 39 , wherein said one or more circuits are operable to control said bias of components based on comparing said determined signal power with a threshold value. 
   
   
       41 . The system according to  claim 39 , wherein said one or more circuits are operable to determine said signal power at an output of each low noise amplifier (LNA) in said RF front-end. 
   
   
       42 . The system according to  claim 39 , wherein said one or more circuits are operable to directly convert one or both of: said received signals in said UHF band and/or said L-band to a baseband signal. 
   
   
       43 . The system according to  claim 39 , wherein said one or more circuits are operable to determine low frequency voltage at an output of at least a portion of each of said components within said baseband processor. 
   
   
       44 . The system according to  claim 39 , wherein said one or more circuits are operable to determine whether one or both of: said received signals in said UHF band and/or said L-band comprise a blocker signal based on said determined signal power. 
   
   
       45 . The system according to  claim 44 , wherein said one or more circuits are operable to decrease said bias of at least one low noise amplifier (LNA), if said blocker signal is below a first threshold value and one or both of: said received signals in said UHF band and/or said L-band is below a second threshold value. 
   
   
       46 . The system according to  claim 44 , wherein said one or more circuits are operable to increase said bias of at least one low noise amplifier (LNA), if said blocker signal is below a first threshold value and one or both of: said received signals in said UHF band and/or said L-band is above a second threshold value. 
   
   
       47 . The system according to  claim 44 , wherein said one or more circuits are operable to decrease said bias of at least one low noise amplifier (LNA), if said blocker signal is above a first threshold value and one or both of: said received signals in said UHF band and/or said L-band is above a second threshold value. 
   
   
       48 . The system according to  claim 44 , wherein said one or more circuits are operable to increase said bias of at least one low noise amplifier (LNA), if said blocker signal is above a first threshold value and one or both of: said received signals in said UHF band and/or said L-band is below a second threshold value. 
   
   
       49 . The system according to  claim 39 , wherein said one or more circuits are operable to receive one or more cellular signals in said UHF band. 
   
   
       50 . The system according to  claim 39 , wherein said one or more circuits are operable to receive one or more Global Navigation Satellite System (GNSS) signals in said L-band.