Hierarchical communications system
First Claim
1. A mobile terminal device for communication of digital information, the terminal comprising:
- a wireless interface supporting direct sequence spread spectrum communication via a first radio frequency network at a first signal power;
a processor communicatively coupled to the wireless interface, the processor facilitating communication of digital information comprising one or both of digitized voice and data;
wherein the digital information is communicated using a series of time intervals each comprising at least a portion for receiving digital information and at least a portion for transmitting digital information;
wherein the mobile terminal device wirelessly receives information identifying a position within each of the series of time intervals of one or both of the at least a portion for receiving digital information and/or the at least a portion for transmitting digital information, and wherein the position is dynamically assigned for each time interval; and
wherein timing of the at least a portion for receiving and timing of the at least a portion for transmitting, within the time interval, are dynamically assigned to the device.
10 Assignments
0 Petitions
Accused Products
Abstract
Two wireless local area networks exhibiting different characteristics link portable or mobile computer devices. An infrastructure network comprising radio base stations, and at least one portable computer device make up the first wireless network, which communicates using spread spectrum frequency hopping communication. A second local area network supports radio communication between a portable computer and peripheral devices with built-in transceivers. The networks use a reservation access protocol that facilitates frequency hopping synchronization, supports adaptive data rate selection based on communication quality, and prevents interference between the wireless networks. In a premises LAN, an infrastructure network comprises radio base stations and a backbone LAN. A higher-power LAN using frequency hopping comprises the infrastructure network and at least one mobile computing device. A lower-power LAN uses single-frequency spread spectrum communication between a mobile computing device and peripheral devices. A vehicular LAN supports short-range communication between vehicle and portable terminals.
223 Citations
20 Claims
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1. A mobile terminal device for communication of digital information, the terminal comprising:
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a wireless interface supporting direct sequence spread spectrum communication via a first radio frequency network at a first signal power; a processor communicatively coupled to the wireless interface, the processor facilitating communication of digital information comprising one or both of digitized voice and data; wherein the digital information is communicated using a series of time intervals each comprising at least a portion for receiving digital information and at least a portion for transmitting digital information; wherein the mobile terminal device wirelessly receives information identifying a position within each of the series of time intervals of one or both of the at least a portion for receiving digital information and/or the at least a portion for transmitting digital information, and wherein the position is dynamically assigned for each time interval; and wherein timing of the at least a portion for receiving and timing of the at least a portion for transmitting, within the time interval, are dynamically assigned to the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. One or more circuits for use in a mobile terminal device supporting spread spectrum communication of digital information, the one or more circuits comprising:
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at least one wireless interface enabling communication over at least one radio frequency network; at least one processor operably coupled to the at least one wireless interface, the at least one processor operable to; wirelessly receive digital information over a first radio frequency network during a receive portion of each of a series of time intervals; wirelessly transmit digital information over the first radio frequency network at a first transmit power level during a transmit portion of each of the series of time intervals; wirelessly receive information identifying a position, within each of the series of time intervals of one or both of the receive portion and/or the transmit portion, wherein the position is dynamically assigned for each time interval; and wherein timing of the receive portion and timing of the transmit portion, within the time interval, are dynamically assigned to the device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification