Multi-mode satellite and terrestrial communication device with position location
First Claim
1. A multi-mode transceiver for a Wireless Communication Device (WCD), comprising:
- a first transmit channel to produce a first Radio Frequency (RF) transmit signal compatible with a first communication system;
a first receive channel to receive a first RF receive signal from the first communication system; and
a second receive channel to receive a second RF receive signal from a satellite positioning system and usable for deriving a position of the WCD, wherein the first and the second receive channels share a common receive path.
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Accused Products
Abstract
The present invention provides a multiple band mobile radio (also referred to as a Wireless Communication Device (WCD)) capable of communicating with both a satellite communication system and a terrestrial communication system. The satellite communication system can be a Low Earth Orbit (LEO) satellite communication system. The terrestrial communication system can be a Personal Communication System (PCS), or a cellular system, including either an analog or a digitally based cellular system. The WCD can concurrently receive signals from the terrestrial communication system and the satellite communication system. Also, the WCD can receive signals useful for position location, such as a GPS satellite signal alone, or both GPS and satellite communication signals, simultaneously.
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Citations
50 Claims
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1. A multi-mode transceiver for a Wireless Communication Device (WCD), comprising:
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a first transmit channel to produce a first Radio Frequency (RF) transmit signal compatible with a first communication system;
a first receive channel to receive a first RF receive signal from the first communication system; and
a second receive channel to receive a second RF receive signal from a satellite positioning system and usable for deriving a position of the WCD, wherein the first and the second receive channels share a common receive path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 32, 34)
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16. A Quad-mode Wireless Communication Device (WCD), comprising:
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a satellite transceiver including a satellite transmit channel and a satellite receive channel for communicating with a satellite communication system;
a terrestrial transceiver including a terrestrial transmit channel and a terrestrial receive channel for communicating with one of a cellular system and a Personal Communication Service (PCS) system, wherein the satellite and the terrestrial transmit channels share a common transmit path; and
a Global Positioning System (GPS) receive channel to receive GPS signals from one or more GPS satellites, from which a position of the WCD can be determined, wherein at least one of the satellite and terrestrial receive channels shares a common receive path with the GPS receive channel.
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21. A method of determining a position of Wireless Communication Device (WCD), the WCD including a transceiver capable of communicating with a satellite communication system, and receiving signals from a satellite positioning system indicative of a position of the WCD, comprising:
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(a) receiving an initial request for a position determination;
(b) transmitting a call set-up request to the satellite communication system in response to the initial request, the call set-up request including a predetermined position services access number;
(c) receiving call set-up information from the satellite communication system to establish the call with the satellite communication system;
(d) receiving a Position Aiding message from the satellite communication system, the Position Aiding message being based on an approximate position of the WCD and including information relating to satellites in the satellite positioning system;
(e) receiving signals from satellites in the satellite positioning system; and
(f) determining a WCD position based on step (e) and the information in the Position Aiding message. - View Dependent Claims (22, 23, 24, 26, 27, 28, 29, 30, 31, 33, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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25. A multi-mode transceiver for a Wireless Communication Device (WCD), comprising:
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means for producing a first Radio Frequency (RF) transmit signal compatible with a first communication system;
means for receiving a first RF receive signal from the first communication system; and
means for receiving a second RF receive signal from a satellite positioning system and usable for deriving a position of the WCD, wherein the first and the second means for receiving share a common receive path.
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36. A method of determining a position of at least one Wireless Communication Device (WCD) which includes a transceiver capable of communicating with a satellite communication system and receiving signals from a satellite positioning system indicative of a position of the WCD, comprising the steps of:
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receiving an initial request for a position determination;
establishing a call through the satellite communication system in response to the initial request;
receiving a position aiding message from the satellite communication system, the position aiding message being based on an approximate position of the WCD and including information relating to satellites in the satellite positioning system;
receiving signals from satellites in the satellite positioning system; and
determining a WCD position based on satellite positioning system and the information in the position aiding message.
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Specification