Enhancements to the positioning pilot channel
First Claim
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1. A method for communicating transmitter identification in an interlace structure of a communication network system using positioning pilot channels (PPC), comprising:
- a) encoding pilot information on a first portion of a plurality of subcarriers in a positioning pilot channel symbol for an active transmitter; and
b) encoding transmitter identification information on a second portion of a plurality of subcarriers of the symbol;
wherein the first portion of the plurality of subcarriers comprises at least first and second interlaces and the second portion of the plurality of subcarriers comprises at least a third interlace;
said pilot information is scrambled in the first interlace with a wide area identifier and scrambled in the at least second interlaces with the wide area identifier and a local area identifier; and
wherein at least one of said interlace includes said transmitter identification information in the form of one or more transmitter location coordinates in a free interlace.
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Accused Products
Abstract
A method for communicating transmitter identification in an interlace structure of a communication network system using positioning pilot channels (PPC), comprising:
- a) encoding pilot information on a first portion of a plurality of subcarriers in a positioning pilot channel symbol for an active transmitter; and
- b) encoding transmitter identification information on a second portion of a plurality of subcarriers of the symbol;
- wherein the first portion of the plurality of subcarriers comprises at least first and second interlaces and the second portion of the plurality of subcarriers comprises at least a third interlace;
- the pilot information is scrambled in the first interlace with a wide area identifier and scrambled in the at least second interlaces with the wide area identifier and a local area identifier; and
- wherein at least one of the interlace includes the transmitter identification information in the form of one or more transmitter location coordinates in a free interlace.
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Citations
43 Claims
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1. A method for communicating transmitter identification in an interlace structure of a communication network system using positioning pilot channels (PPC), comprising:
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a) encoding pilot information on a first portion of a plurality of subcarriers in a positioning pilot channel symbol for an active transmitter; and b) encoding transmitter identification information on a second portion of a plurality of subcarriers of the symbol; wherein the first portion of the plurality of subcarriers comprises at least first and second interlaces and the second portion of the plurality of subcarriers comprises at least a third interlace; said pilot information is scrambled in the first interlace with a wide area identifier and scrambled in the at least second interlaces with the wide area identifier and a local area identifier; and wherein at least one of said interlace includes said transmitter identification information in the form of one or more transmitter location coordinates in a free interlace. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for communicating transmitter identification in an interlace structure of a communication network system using positioning pilot channels (PPC) comprising:
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a) a first module configured to encode pilot information on a first portion of a plurality of subcarriers in a positioning pilot channel symbol for an active transmitter; and b) a second module implemented by a processor and configured to encode transmitter identification information on a second portion of a plurality of subcarriers of the symbol; wherein the first portion of the plurality of subcarriers comprises at least first and second interlaces and the second portion of the plurality of subcarriers comprises at least a third interlace; said pilot information is scrambled in the first interlace with a wide area identifier and scrambled in the at least second interlaces with the wide area identifier and a local area identifier; and wherein at least one of said interlace includes said transmitter identification information in the form of one or more transmitter location coordinates in a free interlace. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A computer program product, comprising:
a non-transitory computer-readable medium encoded with computer program codes, the computer program codes comprising; code for causing a computer to encode pilot information on a first portion of a plurality of subcarriers in a positioning pilot channel symbol for an active transmitter; and code for causing a computer to encode transmitter identification information on a second portion of a plurality of subcarriers of the symbol; wherein the first portion of the plurality of subcarriers comprises at least first and second interlaces and the second portion of the plurality of subcarriers comprises at least a third interlace; said pilot information comprises code for causing a computer to scramble in the first interlace with a wide area identifier and code for causing a computer scrambling in the at least second interlaces with the wide area identifier and a local area identifier; and wherein at least one of said interlace includes code for causing a computer to encode said transmitter identification information in the form of one or more transmitter location coordinates in a free interlace. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A non-transitory computer readable media embodying computer program codes that when executed by a computer, perform a method for communicating transmitter identification in an interlace structure of a communication network system using positioning pilot channels (PPC), the method comprising:
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a) encoding pilot information on a first portion of a plurality of subcarriers in a positioning pilot channel symbol for an active transmitter; and b) encoding transmitter identification information on a second portion of a plurality of subcarriers of the symbol; wherein the first portion of the plurality of subcarriers comprises at least first and second interlaces and the second portion of the plurality of subcarriers comprises at least a third interlace; said pilot information is scrambled in the first interlace with a wide area identifier and scrambled in the at least second interlaces with the wide area identifier and a local area identifier; and wherein at least one of said interlace includes said transmitter identification information in the form of one or more transmitter location coordinates in a free interlace. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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Specification