Method and apparatus for hopping digital packet data signals
First Claim
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1. An apparatus for hopping a digital packet data signal on a plurality of voice channels in a communication system comprising:
- a digital packet data transceiver, the digital packet data transceiver operable to transmit the digital packet data signal on a first of the plurality of voice channels within the communication system and to transmit the digital packet data signal on a second of the plurality of voice channels in response to a control signal;
a first sample path for communicating a first signal sample, the first signal sample comprising a sample of the digital packet data signal transmitted on the first of the plurality of voice channels;
a second sample path communicating a second signal sample, the second signal sample comprising a pre-transmitted digital packet data signal sample;
a comparator, coupled to the first signal path and the second signal path to produce the control signal, the control signal being indicative of a characteristic difference between the first signal sample and the second signal sample, and to communicate the control signal to the digital packet data transceiver such that the digital packet data transceiver transmits the digital packet data signal on the second of the plurality of voice channels.
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Abstract
A method (300) and apparatus (200) provide for determining when a digital packet data signal and a voice signal are being concomitantly transmitted on a voice channel of a communication system. A sample of the transmitted signal (110) is compared (310) to a pre-transmitted sample of the digital packet data signal (108). In response to the comparison, a digital packet data transceiver hops (314-320) from the first voice channel to a different voice channel for transmitting the digital packet data signal when voice signals are present.
12 Citations
18 Claims
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1. An apparatus for hopping a digital packet data signal on a plurality of voice channels in a communication system comprising:
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a digital packet data transceiver, the digital packet data transceiver operable to transmit the digital packet data signal on a first of the plurality of voice channels within the communication system and to transmit the digital packet data signal on a second of the plurality of voice channels in response to a control signal; a first sample path for communicating a first signal sample, the first signal sample comprising a sample of the digital packet data signal transmitted on the first of the plurality of voice channels; a second sample path communicating a second signal sample, the second signal sample comprising a pre-transmitted digital packet data signal sample; a comparator, coupled to the first signal path and the second signal path to produce the control signal, the control signal being indicative of a characteristic difference between the first signal sample and the second signal sample, and to communicate the control signal to the digital packet data transceiver such that the digital packet data transceiver transmits the digital packet data signal on the second of the plurality of voice channels. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of hopping a digital packet data signal between a plurality of voice channels within a communication system comprising:
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(a) transmitting the digital packet data signal on an initial voice channel of the plurality of voice channels within the communication system; (b) taking a first sample of the digital packet data signal transmitted on the initial voice channel; (c) taking a second sample of the digital packet data signal prior to transmission on the initial voice channel; (d) generating a comparison signal between the first sample and the second sample; and (e) terminating transmission of the digital packet data signal on the initial voice channel when the comparison signal is outside a range, selecting an alternate voice channel of the plurality of voice channels and transmitting the digital packet data signal on the alternate voice channel. - View Dependent Claims (9, 10, 11, 12)
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13. A base station, for hopping a digital packet data signal between a plurality of voice channels within a communication system, comprising:
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(a) means for transmitting the digital packet data signal on a first of the plurality of voice channels within the communication system; (b) means for taking a first sample of the digital packet data signal transmitted on the first voice channel; (c) means for taking a second sample of the digital packet data signal prior to transmission on the first voice channel; (d) means for generating a comparison signal between the first sample and the second sample; and (e) means for transferring transmission of the digital packet data signal from the first voice channel to a second of the plurality of voice channels when the comparison signal is outside a range. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification