USING WAKE-UP RECEIVERS FOR SOFT HAND-OFF IN WIRELESS COMMUNICATIONS
First Claim
Patent Images
1. A method of facilitating a soft hand-off in wireless communications, comprising:
- (a) providing a first wireless component and a second wireless component, the second wireless component including a controller and first and second low power radio systems;
(b) receiving, at a wake-up receiver of the first low power radio system in the second wireless component, a first wake-up signal;
(c) in response to receiving the first wake-up signal, sending a first electronic signal to the controller;
(d) in response to receiving the first electronic signal at the controller, activating a two-way wireless communication device of the first low power radio system, thereby facilitating two-way wireless communication with the first wireless component;
(e) receiving, at a wake-up receiver of the second low power radio system in the second wireless component, a second wake-up signal;
(f) in response to receiving the second wake-up signal, sending a second electronic signal to the controller; and
(g) in response to receiving the second electronic signal at the controller, activating a two-way wireless communication device of the second low power radio system and deactivating the two-way wireless communication device of the first low power radio system, thereby facilitating two-way wireless communication with the first wireless component.
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Abstract
Multiple standards based radio (“SBR”) devices, each having a high-gain directional antenna, are utilized in a remote sensor interface (“RSI”) unit to optimize detection and reception by the RSI of radio signals from gateway controllers, hopping radios, and other wireless devices.
182 Citations
26 Claims
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1. A method of facilitating a soft hand-off in wireless communications, comprising:
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(a) providing a first wireless component and a second wireless component, the second wireless component including a controller and first and second low power radio systems;
(b) receiving, at a wake-up receiver of the first low power radio system in the second wireless component, a first wake-up signal;
(c) in response to receiving the first wake-up signal, sending a first electronic signal to the controller;
(d) in response to receiving the first electronic signal at the controller, activating a two-way wireless communication device of the first low power radio system, thereby facilitating two-way wireless communication with the first wireless component;
(e) receiving, at a wake-up receiver of the second low power radio system in the second wireless component, a second wake-up signal;
(f) in response to receiving the second wake-up signal, sending a second electronic signal to the controller; and
(g) in response to receiving the second electronic signal at the controller, activating a two-way wireless communication device of the second low power radio system and deactivating the two-way wireless communication device of the first low power radio system, thereby facilitating two-way wireless communication with the first wireless component. - View Dependent Claims (2, 3, 4, 5)
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6. A remote sensor interface, comprising:
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(a) a sensor input adapted to receive data from a sensor device;
(b) a plurality of low power radio systems, each including;
(i) a two-way wireless communication device, and (ii) a wake-up receiver; and
(c) a controller, connected to each wake-up receiver to receive signals therefrom and further connected to each two-way wireless communications device to effect two-way communication therethrough, wherein the controller is adapted to select one of the plurality of two-way wireless communication devices for external two-way wireless communications, the selection being made on the basis of an electronic signal received from at least one of the plurality of wake-up receivers;
(d) wherein the controller is adapted to wirelessly transmit data, received from the sensor device connected to the sensor input, via the selected two-way wireless communications device. - View Dependent Claims (7, 8, 9, 10)
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11. A remote sensor interface link, comprising:
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(a) a plurality of low power radio systems, each including;
(i) a two-way wireless communication device, and (ii) a wake-up receiver; and
(b) a controller, connected to each wake-up receiver to receive signals therefrom and further connected to each two-way wireless communications device to effect two-way communication therethrough, wherein the controller is adapted to select one of the plurality of two-way wireless communication devices for external two-way wireless communications, the selection being made on the basis of an electronic signal received from at least one of the plurality of wake-up receivers;
(c) wherein the controller is adapted to wirelessly transmit sensor data, received from a remote sensor interface, via the selected two-way wireless communications device. - View Dependent Claims (12, 13, 14, 15)
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16. A wireless communication system, comprising:
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(a) a first wireless communication component;
(b) a sensor device; and
(c) a second wireless communication component, adapted to receive sensor data from at least one sensor device, including;
(i) a plurality of low power radio systems, each having a two-way wireless communication device and a wake-up receiver, and (ii) a controller, connected to each wake-up receiver to receive signals therefrom and further connected to each two-way wireless communications device to effect two-way communication therethrough, wherein the controller is adapted to select one of the plurality of two-way wireless communication devices for two-way wireless communications with the first wireless communication component, the selection being made on the basis of an electronic signal received from at least one of the plurality of wake-up receivers, (iii) wherein the controller is adapted to wirelessly transmit sensor data, received from the sensor device, to the first wireless communication component via the selected two-way wireless communications device. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification