Method and apparatus for creating and using a base station almanac for position determination
First Claim
1. A method of using a base station almanac for position determination in a wireless terrestrial communication network, comprising:
- storing, for the base station almanac, a plurality of records for a plurality of earthbound transmitting entities in the wireless terrestrial communication network, wherein each of the plurality of records supports at least one protocol for position determination, and wherein the base station almanac supports a plurality of protocols for position determination; and
performing position determination for each of the plurality of protocols based on records supporting the protocol.
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Abstract
A method and apparatus for creating and using a base station almanac for position determination is described. The base station almanac includes a number of records, where each record can describe a sector or a transmitter (e.g., a base station or a repeater) in a wireless communication network. Each record includes a protocol type field that indicates the one or more protocols supported by the record (e.g., IS-801, J-STD-36, GSM, W-CDMA, and so on). Each record also includes a unique sector identifier for the sector/transmitter for each supported protocol, where each identifier is defined based on the associated protocol. A record may also include multiple maximum antenna ranges (MARs), where each MAR is associated with a respective reference power level. One of the multiple MARs can be selected for use for position determination depending on received signal strength. The base station almanac further includes other features.
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Citations
21 Claims
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1. A method of using a base station almanac for position determination in a wireless terrestrial communication network, comprising:
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storing, for the base station almanac, a plurality of records for a plurality of earthbound transmitting entities in the wireless terrestrial communication network, wherein each of the plurality of records supports at least one protocol for position determination, and wherein the base station almanac supports a plurality of protocols for position determination; and performing position determination for each of the plurality of protocols based on records supporting the protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A position determination system comprising:
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a storage unit for storing a base station almanac with a plurality of records for a plurality of earthbound transmitting entities in a wireless terrestrial communication network, wherein each of the plurality of records supports at least one protocol for position determination, and wherein the base station almanac supports a plurality of protocols for position determination; and a controller operative to perform position determination for each of the plurality of protocols based on records supporting the protocol. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A position determination apparatus, comprising:
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means for storing a base station almanac with a plurality of records for a plurality of earthbound transmitting entities in a wireless terrestrial communication network, wherein each of the plurality of records supports at least one protocol for position determination, and wherein the base station almanac supports a plurality of protocols for position determination; and means for performing position determination for each of the plurality of protocols based on records supporting the protocol. - View Dependent Claims (18, 19, 20, 21)
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Specification