Packet-based downlink level control
First Claim
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1. A packet-based downlink level control subsystem for a wireless communication system, such subsystem comprising:
- an embedding mechanism for embedding into each packet a power level code; and
a packet transmitter mechanism responsive to the power level code for adjusting the power of the transmitted signal in accordance with the power level code.
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Abstract
A packet-based downlink level control subsystem is provided for a wireless communication system. The subsystem includes a mechanism for embedding into each packet a power level code. The subsystem further includes a packet transmitter mechanism responsive to the embedded power level code for adjusting the power of the transmitted signal in accordance with the embedded power level code. This enables the transmitted power levels to be tailored to fit the needs of different individual receiving stations.
38 Citations
17 Claims
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1. A packet-based downlink level control subsystem for a wireless communication system, such subsystem comprising:
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an embedding mechanism for embedding into each packet a power level code; and
a packet transmitter mechanism responsive to the power level code for adjusting the power of the transmitted signal in accordance with the power level code. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A packet-based downlink level control subsystem for a wireless communication system, such subsystem comprising:
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a parser mechanism located in an asynchronous packet switching portion of the subsystem and responsive to incoming packets for locating and reproducing their destination user identity fields;
a power level database located in the asynchronous packet switching portion of the subsystem and having stored therein a listing of power level codes for different destination user identities, this database being responsive to the parsed destination user identity fields for producing the corresponding power level codes;
a packet buffer for receiving and buffering the incoming packets, such packet buffer including circuitry for embedding into the incoming packets the power level codes produced by the power level database;
a power amplifier located in a synchronous transmitter portion of the subsystem for feeding amplified packet signals to a downlink antenna;
a time delay mechanism located in the synchronous transmitter portion of the subsystem for receiving packets from the packet buffer and supplying same to the power amplifier for downlink transmission; and
a parser mechanism located in the synchronous transmitter portion of the subsystem and responsive to packets output by the packet buffer for locating and decoding the power level codes embedded in such packets and producing and supplying corresponding gain control signals to the power amplifier for controlling signal strengths of the transmitted packet signals.
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13. A method of controlling the power of downlink signals transmitted by a wireless communication system, such method comprising the steps of:
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determining the identity of an intended receiving station; and
adjusting a power of a transmitted signal in accordance with the identity of the intended receiving station, whereby different power levels are used for different receiving stations. - View Dependent Claims (14, 15, 16, 17)
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Specification