Patent US6862275B1 successfully refreshed from Google Patents.
US6862275B1
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Assignee: Texas Instruments Inc
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Filing: 2000-02-25
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Granted: 2005-03-01
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Expires: 2020-02-25
Abstract
Abstract A method of operating a communication circuit comprises the steps of receiving a plurality of signals ( 508-509, 514-516 ) from a plurality of remote transmitters ( 502-506 ) and determining which of the plurality of remote transmitters use transmit diversity. A signal strength of each respective signal of the plurality of signals is calculated. One of the remote transmitters is selected in response to the steps of determining and calculating.
Inventors
- 👤 Anand G. Dabak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:24
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/022; H04B7/04; H04B7/06; H04B7/0613; H04B7/0667; H04B7/0669; H04L; H04L1/00; H04L1/004; H04L1/0045; H04L1/0054; H04L1/02; H04L1/06; H04L1/0618; H04L1/20; H04L1/203
Claims Analysis
Total Claims: 80
Claim 1
Independent Claim
62 words
A method of operating a communication circuit, comprising the steps of: receiving a plurality of signals from a plurality of remote transmitters; determining which of the plurality of remote transmitters use transmit diversity; calculating a signal strength of each respective signal of the plurality of signals; and selecting one of the remote transmitters in response to the steps of determining and calculating.
Claim 2
Independent Claim
62 words
A method of operating a communication circuit, comprising the steps of: receiving a plurality of signals from a plurality of remote transmitters; determining which of the plurality of remote transmitters use transmit diversity; calculating a signal strength of each respective signal of the plurality of signals; and selecting one of the remote transmitters in response to the steps of determining and calculating.
Claim 3
Dependent Claim
20 words
A method as in claim 1 , wherein the step of calculating the signal strength comprises calculating a signal-to-interference ratio.
Claim 4
Dependent Claim
28 words
A method as in claim 2 , wherein the step of selecting comprises selecting a remote transmitter having the greatest signal-to-interference ratio of the plurality of remote transmitters.
Claim 5
Dependent Claim
21 words
A method as in claim 1 , wherein the plurality of signals from the plurality of remote transmitters comprises pilot symbols.
Claim 6
Dependent Claim
26 words
A method as in claim 1 , further comprising the step of transmitting an identity of said one of the remote transmitters to a remote receiver.
Claim 7
Dependent Claim
32 words
A method as in claim 5 , further comprising the step of receiving a plurality of data signals from said one of the remote transmitter in response to the step of transmitting.
Claim 8
Dependent Claim
15 words
A method as in claim 1 , wherein the transmit diversity is space-time transmit diversity.
Claim 9
Dependent Claim
39 words
A method as in claim 1 , further comprising the step of comparing a reference value to a difference between signal strengths of the plurality of remote transmitters, wherein the step of selecting further comprises the step of comparing.
Claim 10
Independent Claim
82 words
A method of operating a communication circuit, coming the steps of: transmitting a plurality of signals from a respective plurality of transmitters, each transmitter of the respective plurality of transmitters having transmit diversity; receiving an identity of a selected transmitter of the plurality of transmitters in response to transmit diversity and signal strength of each respective transmitter; and transmitting from the selected transmitter and not transmitting at least one signal from at least another transmitter in response to the step of receiving.
Claim 11
Independent Claim
82 words
A method of operating a communication circuit, coming the steps of: transmitting a plurality of signals from a respective plurality of transmitters, each transmitter of the respective plurality of transmitters having transmit diversity; receiving an identity of a selected transmitter of the plurality of transmitters in response to transmit diversity and signal strength of each respective transmitter; and transmitting from the selected transmitter and not transmitting at least one signal from at least another transmitter in response to the step of receiving.
Claim 12
Dependent Claim
15 words
A method as in claim 9 , wherein the plurality of signals comprises pilot symbols.
Claim 13
Dependent Claim
15 words
A method as in claim 9 , wherein the transmit diversity is space-time transmit diversity.
Claim 14
Dependent Claim
15 words
A method as in claim 9 , wherein the signal strength is a signals-to-interference ratio.
Claim 15
Dependent Claim
36 words
A method as in claim 9 , wherein the step of transmitting from the selected transmitter comprises transmitting data symbols, and wherein not transmitting at least one signal comprises not transmitting at least one data symbol.
Claim 16
Dependent Claim
21 words
A method as in claim 9 , further comprising transmitting a list of active transmitters from the respective plurality of transmitters.
Claim 17
Independent Claim
64 words
A method of operating a communication circuit, comprising the steps of: receiving a plurality of signals from each of a plurality of remote transmitters; determining which of the plurality of remote transmitters use transmit diversity; calculating a signal strength of each respective signal of the plurality of signals; and selecting one of the remote transmitters in response to the steps of determining and calculating.
Claim 18
Independent Claim
64 words
A method of operating a communication circuit, comprising the steps of: receiving a plurality of signals from each of a plurality of remote transmitters; determining which of the plurality of remote transmitters use transmit diversity; calculating a signal strength of each respective signal of the plurality of signals; and selecting one of the remote transmitters in response to the steps of determining and calculating.
Claim 19
Dependent Claim
20 words
A method as in claim 15 , when the step of calculating the signal strength comprises calculating a signal-to-interference ratio.
Claim 20
Dependent Claim
28 words
A method as in claim 16 , wherein the step of selecting comprises selecting a remote transmitter having the greatest sigal-to-interference ratio of the plurality of remote transmitters.
Claim 21
Dependent Claim
21 words
A method as in claim 15 , wherein the plurality of signals form the plurality of remote transmitters comprises pilot symbols.
Claim 22
Dependent Claim
26 words
A method as in claim 15 , further comprising the step of transmitting an identity of said one of the remote transmitters to a remote receiver.
Claim 23
Dependent Claim
32 words
A method as in claim 19 , further comprising the step of receiving a plurality of data signals from said one of the remote transmitters in response to the step of transmitting.
Claim 24
Dependent Claim
15 words
A method as in claim 15 , wherein the transmit diversity is space-time transmit diversity.
Claim 25
Dependent Claim
39 words
A method as in claim 15 , further comprising the step of comparing a refinance value to a difference between signal skis of the plurality of remote transmitters, wherein the step of selecting further comprises the step of comparing.
Claim 26
Independent Claim
84 words
A method of operating a communication circuit, comprising the steps of: transmitting a plurality of signals from each of a respective plurality of transmitters, each transmitter of the respective plurality of transmitters having transmit diversity; receiving an identity of a selected transmitter of the plurality of transmitters in response to transmit diversity and sigal strength of each respective transmitter; and transmitting from the selected transmitter and not transmitting at least one signal from at least another transmitter in response to the step of receiving.
Claim 27
Independent Claim
84 words
A method of operating a communication circuit, comprising the steps of: transmitting a plurality of signals from each of a respective plurality of transmitters, each transmitter of the respective plurality of transmitters having transmit diversity; receiving an identity of a selected transmitter of the plurality of transmitters in response to transmit diversity and sigal strength of each respective transmitter; and transmitting from the selected transmitter and not transmitting at least one signal from at least another transmitter in response to the step of receiving.
Claim 28
Dependent Claim
15 words
A method as in claim 23 , wherein the plurality of signals comprises pilot symbols.
Claim 29
Dependent Claim
15 words
A method as in claim 23 , wherein the transmit diversity is space-time transmit diversity.
Claim 30
Dependent Claim
15 words
A method as in claim 23 , wherein the signal strength is a signal-to-interference ratio.
Claim 31
Dependent Claim
36 words
A method as in claim 23 , wherein the step of transmitting firm the selected transmitter comprises transmitting data symbols, and wherein not transmitting at least one sigal comprises not transmitting at least one data symbol.
Claim 32
Dependent Claim
21 words
A method as in claim 23 , further comprising transmitting a list of active transmitters firm the respective plurality of transmitters.
Claim 33
Independent Claim
70 words
A method of operating a communication circuit, comprising the steps of: receiving a plurality of signals from a plurality of remote transmitters, the plurality of signals having a common code; determining which of the plurality of remote transmitters use transmit diversity; calculating a signal strength of each respective signal of the plurality of signals; and selecting one of the remote transmitters in response to the steps of determining and calculating.
Claim 34
Independent Claim
70 words
A method of operating a communication circuit, comprising the steps of: receiving a plurality of signals from a plurality of remote transmitters, the plurality of signals having a common code; determining which of the plurality of remote transmitters use transmit diversity; calculating a signal strength of each respective signal of the plurality of signals; and selecting one of the remote transmitters in response to the steps of determining and calculating.
Claim 35
Dependent Claim
20 words
A method as in claim 29 , wherein the step of calculating the signal strength comprises calculating a sigal-to-interference ratio.
Claim 36
Dependent Claim
28 words
A method as in claim 30 , wherein the step of selecting comprises selecting a remote transmitter having the greatest signal-to-interference ratio of the plurality of remote transmitters.
Claim 37
Dependent Claim
21 words
A method as in claim 29 , wherein the plurality of signals from the plurality of remote transmitters comprises pilot symbols.
Claim 38
Dependent Claim
26 words
A method as in claim 29 , further comprising the step of transmitting an identity of said one of the remote transmitters to a remote receiver.
Claim 39
Dependent Claim
32 words
A method as in claim 33 , further comprising the step of receiving a plurality of data signals from said one of the remote transmitters in response to the step of transmitting.
Claim 40
Dependent Claim
15 words
A method as in claim 29 , wherein the transmit diversity is space-time transmit diversity.
Claim 41
Dependent Claim
39 words
A method as in claim 29 , further comprising the step of comparing a reference value to a difference between signal strengths of the plurality of remote transmitters, wherein the step of selecting further comprises the step of comparing.
Claim 42
Independent Claim
91 words
A method of operating a communication circuit, comprising the steps of: transmitting a plurality of signals from a respective plurality of transmitters, the plurality of signals having a common code and each transmitter of the respective plurality of transmitters having transmit diversity; receiving an identity of a selected transmitter of the plurality of transmitters in response to transmit diversity and signal strength of each respective transmitter; and transmitting from the selected transmitter and not transmitting at least one signal from at least another transmitter in response to the stop of receiving.
Claim 43
Independent Claim
91 words
A method of operating a communication circuit, comprising the steps of: transmitting a plurality of signals from a respective plurality of transmitters, the plurality of signals having a common code and each transmitter of the respective plurality of transmitters having transmit diversity; receiving an identity of a selected transmitter of the plurality of transmitters in response to transmit diversity and signal strength of each respective transmitter; and transmitting from the selected transmitter and not transmitting at least one signal from at least another transmitter in response to the stop of receiving.
Claim 44
Dependent Claim
15 words
A method as in claim 37 , wherein the plurality of signals comprises pilot symbols.
Claim 45
Dependent Claim
15 words
A method as in claim 37 , wherein the transmit diversity is space-time transmit diversity.
Claim 46
Dependent Claim
15 words
A method as in claim 37 , wherein the signal strength is a signal-to-interference ratio.
Claim 47
Dependent Claim
36 words
A method as in claim 37 , wherein the step of transmitting from the selected transmitter comprises transmitting data symbols, and wherein not transmitting at least one signal comprises not transmitting at least one data symbol.
Claim 48
Dependent Claim
21 words
A method as in claim 37 , further comprising transmitting a list of active transmitter from the respective plurality of transmitters.
Claim 49
Independent Claim
65 words
A method of operating a communication circuit, comprising the steps of: receiving a plurality of signals from a plurality of remote base stations; determining which of the plurality of remote base stations use transmit diversity; calculating a signal strength of each respective signal of the plurality of signals; and selecting one of the remote base stations in response to the steps of determining and calculating.
Claim 50
Independent Claim
65 words
A method of operating a communication circuit, comprising the steps of: receiving a plurality of signals from a plurality of remote base stations; determining which of the plurality of remote base stations use transmit diversity; calculating a signal strength of each respective signal of the plurality of signals; and selecting one of the remote base stations in response to the steps of determining and calculating.
Claim 51
Dependent Claim
20 words
A method as in claim 43 , wherein the step of calculating the signal strength comprises calculating a signal-to-interference ratio.
Claim 52
Dependent Claim
30 words
A method as in claim 44 , wherein the step of selecting comprises selecting a remote base station having the greatest signal-to-interference ratio of the plurality of remote base stations.
Claim 53
Dependent Claim
22 words
A method as in claim 43 , wherein the plurality of sirs from the plurality of remote base stations comprises pilot symbols.
Claim 54
Dependent Claim
27 words
A method as in claim 43 , further comprising the step of transmitting an identity of said one of the remote base stations to a remote receiver.
Claim 55
Dependent Claim
33 words
A method as in claim 47 , further comprising the step of receiving a plurality of data signals from said one of the remote base stations in response to the step of transmitting.
Claim 56
Dependent Claim
15 words
A method as in claim 43 , wherein the transmit diversity is space-time transmit diversity.
Claim 57
Dependent Claim
40 words
A method as in claim 43 , further comprising the step of comparing a reference value to a difference between signal strengths of the plurality of remote base stations, wherein the step of selecting further comprises the step of comparing.
Claim 58
Independent Claim
77 words
A method of operating a communication circuit, comprising the steps of: transmitting a plurality of signals from a respective plurality of base stations; receiving an identity of a selected base station of the plurality of base stations in response to transmit diversity and signal strength of each respective base station; and transmitting from the selected base station and not transmitting at least one signal from at least another base station in response to the step of receiving.
Claim 59
Independent Claim
77 words
A method of operating a communication circuit, comprising the steps of: transmitting a plurality of signals from a respective plurality of base stations; receiving an identity of a selected base station of the plurality of base stations in response to transmit diversity and signal strength of each respective base station; and transmitting from the selected base station and not transmitting at least one signal from at least another base station in response to the step of receiving.
Claim 60
Dependent Claim
15 words
A method as in claim 51 , wherein the plurality of signals comprises pilot symbols.
Claim 61
Dependent Claim
15 words
A method as in claim 51 , wherein the transmit diversity is space-time transmit diversity.
Claim 62
Dependent Claim
14 words
A method as in claim 51 , wherein thesis strength is a signal-to-interference ratio.
Claim 63
Dependent Claim
37 words
A method as in claim 51 , wherein the step of transmitting from the selected base station comprises transmitting data symbols, and wherein not transmitting at least one signal comprises not transmitting at least one data symbol.
Claim 64
Dependent Claim
23 words
A method as in claim 55 , further comprising transmitting a list of active base stations from the respective plurality of base stations.
Claim 65
Independent Claim
69 words
A method of operating a communication circuit, comprising the steps of: receiving a plurality of signals from a plurality of remote transmitters, the plurality of signals having common data; determining which of the plurality of remote transmitters use transmit diversity; calculating a signal strength of each respective signal of the plurality of signals; and selecting one of the remote transmitters in response to the steps of determining and calculating.
Claim 66
Independent Claim
69 words
A method of operating a communication circuit, comprising the steps of: receiving a plurality of signals from a plurality of remote transmitters, the plurality of signals having common data; determining which of the plurality of remote transmitters use transmit diversity; calculating a signal strength of each respective signal of the plurality of signals; and selecting one of the remote transmitters in response to the steps of determining and calculating.
Claim 67
Dependent Claim
20 words
A method as in claim 57 , wherein the step of calculating the signal strength comprises calculating a signal-to-interference ratio.
Claim 68
Dependent Claim
28 words
A method as in claim 58 , wherein the step of selecting comprises selecting a remote transmitter having the greatest signal-to-interference ratio of the plurality of remote transmitters.
Claim 69
Dependent Claim
21 words
A method as in claim 57 , wherein the plurality of signals from the plurality of remote transmitters comprise pilot symbols.
Claim 70
Dependent Claim
26 words
A method as in claim 57 , further comprising the step of transmitting an identity of said one of the remote transmitters to a remote receiver.
Claim 71
Dependent Claim
32 words
A method as in claim 61 , further comprising the step of receiving a plurality of data signals from said one of the remote transmitters in response to the step of transmitting.
Claim 72
Dependent Claim
15 words
A method as in claim 57 , wherein the transmit diversity is space-time transmit diversity.
Claim 73
Dependent Claim
39 words
A method as in claim 57 , further comprising the step of comparing a reference value to a difference between signal strengths of the plurality of remote transmitters, wherein the step of selecting further comprises the step of comparing.
Claim 74
Independent Claim
90 words
A method of operating a communication circuit, comprising the steps of: transmitting a plurality of signals from a respective plurality of transmitters, the plurality of signals having common data and each transmitter of the respective plurality of transmitters having transmit diversity; receiving an identity of a selected transmitter of the plurality of transmitters in response to transmit diversity and signal strength of each respective transmitter; and transmitting from the selected transmitter and not transmitting at least one signal from at least another transmitter in response to the step of receiving.
Claim 75
Independent Claim
90 words
A method of operating a communication circuit, comprising the steps of: transmitting a plurality of signals from a respective plurality of transmitters, the plurality of signals having common data and each transmitter of the respective plurality of transmitters having transmit diversity; receiving an identity of a selected transmitter of the plurality of transmitters in response to transmit diversity and signal strength of each respective transmitter; and transmitting from the selected transmitter and not transmitting at least one signal from at least another transmitter in response to the step of receiving.
Claim 76
Dependent Claim
15 words
A method as in claim 65 , wherein the plurality of signals comprises pilot symbols.
Claim 77
Dependent Claim
15 words
A method as in claim 65 , wherein the transmit diversity is space-time transmit diversity.
Claim 78
Dependent Claim
15 words
A method as in claim 65 , wherein the signal strength is a signal-to-interference ratio.
Claim 79
Dependent Claim
36 words
A method as in claim 65 , wherein the step of transmitting from the selected transmitter comprises transmitting data symbols, and wherein not transmitting at least one signal comprises not transmitting at least one data symbol.
Claim 80
Dependent Claim
21 words
A method as in claim 65 , further comprising transmitting a list of active transmitters from the respective plurality of transmitters.
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