Method and system for determining synchronization status in a wide band CDMA network
First Claim
1. A method for signal processing, the method comprising:
- for each of a plurality of radio links, calculating, using a processing unit, a signal to noise ratio (SNR) of a downlink dedicated physical channel (DPCH) based on a plurality of transmit power control (TPC) bits received via a plurality of multipaths over said DPCH,wherein said calculating said SNR comprises summing portions of said plurality of TPC bits that are received via said plurality of multipaths over said DPCH to generate an in-phase (I) component and a quadrature (Q) component; and
calculating, using the processing unit an average SNR of said DPCH by averaging said calculated SNR of each of said plurality of radio links.
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Abstract
A method and system for determining synchronization status in a wide band CDMA (WCDMA) network may comprise calculating a signal to noise ratio (SNR) of a downlink dedicated physical channel (DPCH) based on a plurality of transmit power control (TPC) bits received via the downlink dedicated physical channel (DPCH), wherein the value of at least one of the plurality of TPC bits is not known when at least one of the plurality of TPC bits is received. The transmit circuitry may be controlled based on the calculated signal to noise ratio. The transmit circuitry may be disabled if the calculated SNR of the plurality of TPC bits is below a first channel threshold. The transmit circuitry may be enabled if the calculated SNR of the plurality of TPC bits is above a second channel threshold.
31 Citations
24 Claims
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1. A method for signal processing, the method comprising:
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for each of a plurality of radio links, calculating, using a processing unit, a signal to noise ratio (SNR) of a downlink dedicated physical channel (DPCH) based on a plurality of transmit power control (TPC) bits received via a plurality of multipaths over said DPCH, wherein said calculating said SNR comprises summing portions of said plurality of TPC bits that are received via said plurality of multipaths over said DPCH to generate an in-phase (I) component and a quadrature (Q) component; and calculating, using the processing unit an average SNR of said DPCH by averaging said calculated SNR of each of said plurality of radio links. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for signal processing, the system comprising:
one or more circuits that are configured to; for each of a plurality of radio links, calculate a signal to noise ratio (SNR) of a downlink dedicated physical channel (DPCH) based on a plurality of transmit power control (TPC) bits received via a plurality of multipaths over said DPCH, wherein said calculating said SNR comprises summing portions of said plurality of TPC bits that are received via said plurality of multipaths over said DPCH to generate an in-phase (I) component and a quadrature (Q) component; and calculating an average SNR of said DPCH by averaging said calculated SNR of each of said plurality of radio links. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
Specification