Patent US1997337A successfully refreshed from Google Patents.
US20030193923A1
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US
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Shared functional block multi-mode multi-band communication transceivers
Assignee: Cisco Technology Inc
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Filing: 2003-05-23
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Granted: —
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Expires: 2023-05-23
Abstract
Abstract A multiple-mode multiple band transceiver is disclosed. Some embodiments include a multiple-channel transmitter including a plurality of selectable transmit-channel components, the plurality of selectable transmit-channel components sharing at least one element coupled to a modulator, the plurality of selectable transmit channel components forming at least first and second transmit channels configured to generate radio-frequency signals using at least a first and a second multiple-access modulation technique, and a first switch configured to enable at least one of the first and second transmit channels to transmit a communication signal using at least one of the first and the second multiple-access modulation techniques.
Inventors
- 👤 MohyEldeen Abdelgany
- 👤 Dana Laub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:33
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/02; H04W88/06; H04B; H04B1/00; H04B1/005; H04B1/0053; H04B1/006; H04B1/06; H04B1/16; H04B1/26; H04B1/28; H04B1/38; H04B1/40; H04B1/403; H04B1/406; H04B1/69; H04B1/707
Claims Analysis
Total Claims: 59
Claim 1
Independent Claim
109 words
1 . A method for operating a multiple-mode multiple-band transceiver, comprising: providing a multiple-channel transmitter including a plurality of selectable transmit-channel components, the plurality of selectable transmit-channel components sharing at least one element coupled to an output of a transmit signal modulator, the plurality of selectable transmit channel components forming at least first and second transmit channels configured to generate radio-frequency signals using at least a first and a second multiple-access modulation technique, wherein the second transmit channel comprises a translation loop; and enabling at least one of the first and second transmit channels to transmit a communication signal using one of the first and second multiple-access modulation techniques.
Claim 2
Dependent Claim
109 words
1 . A method for operating a multiple-mode multiple-band transceiver, comprising: providing a multiple-channel transmitter including a plurality of selectable transmit-channel components, the plurality of selectable transmit-channel components sharing at least one element coupled to an output of a transmit signal modulator, the plurality of selectable transmit channel components forming at least first and second transmit channels configured to generate radio-frequency signals using at least a first and a second multiple-access modulation technique, wherein the second transmit channel comprises a translation loop; and enabling at least one of the first and second transmit channels to transmit a communication signal using one of the first and second multiple-access modulation techniques.
Claim 3
Dependent Claim
28 words
2 . The method of claim 1 , wherein the at least one element coupled to an output of the transmit signal modulator comprises a variable gain amplifier.
Claim 4
Dependent Claim
19 words
3 . The method of claim 1 , wherein the first multiple-access modulation technique comprises code division multiple access.
Claim 5
Dependent Claim
20 words
4 . The method of claim 1 , wherein the second multiple-access modulation technique comprises global system for mobile communication.
Claim 6
Dependent Claim
99 words
5 . The method of claim 1 , further comprising: providing a multiple channel receiver including a plurality of selectable receive channel components, the plurality of selectable receive channel components sharing at least one element coupled to an input of a demodulator, the plurality of selectable receive channel components forming at least first and second receive channels configured to receive radio-frequency signals using at least the first and second multiple-access modulation techniques; and enabling at least one of the first and second receive channels to receive a communication signal using one of the first and second multiple-access modulation techniques.
Claim 7
Dependent Claim
28 words
6 . The method of claim 5 , wherein the at least one element coupled to an output of a transmit signal modulator comprises a variable gain amplifier.
Claim 8
Dependent Claim
19 words
7 . The method of claim 5 , wherein the first multiple-access modulation technique comprises code division multiple access.
Claim 9
Dependent Claim
20 words
8 . The method of claim 5 , wherein the second multiple-access modulation technique comprises global system for mobile communication.
Claim 10
Dependent Claim
36 words
9 . The method of claim 5 , wherein the plurality of selectable receive channel components further share at least one element coupled to at least one image reject filter and at least one IF filter.
Claim 11
Dependent Claim
33 words
10 . The method of claim 5 , wherein the plurality of selectable receive channel components further share at least one element coupled to an antenna and at least one image reject filter.
Claim 12
Dependent Claim
23 words
11 . The method of claim 10 , wherein the at least one element is coupled to the antenna via a preselector filter.
Claim 13
Dependent Claim
23 words
12 . The method of claim 10 , wherein the at least one element is coupled to the antenna via a variable attenuator.
Claim 14
Dependent Claim
19 words
13 . The method of claim 10 , wherein the at least one element comprises a low noise amplifier.
Claim 15
Dependent Claim
17 words
14 . The method of claim 10 , wherein the at least one element comprises a mixer.
Claim 16
Dependent Claim
108 words
15 . A multiple-mode multiple band transceiver, comprising: a multiple-channel transmitter including a plurality of selectable transmit-channel components, the plurality of selectable transmit-channel components sharing at least one element coupled to a modulator, the plurality of selectable transmit channel components forming at least first and second transmit channels configured to generate radio-frequency signals using at least a first and a second multiple-access modulation technique, wherein the second transmit channel comprises a translation loop; and a first switch configured to enable at least one of the first and second transmit channels to transmit a communication signal using at least one of the first and the second multiple-access modulation techniques.
Claim 17
Dependent Claim
108 words
15 . A multiple-mode multiple band transceiver, comprising: a multiple-channel transmitter including a plurality of selectable transmit-channel components, the plurality of selectable transmit-channel components sharing at least one element coupled to a modulator, the plurality of selectable transmit channel components forming at least first and second transmit channels configured to generate radio-frequency signals using at least a first and a second multiple-access modulation technique, wherein the second transmit channel comprises a translation loop; and a first switch configured to enable at least one of the first and second transmit channels to transmit a communication signal using at least one of the first and the second multiple-access modulation techniques.
Claim 18
Dependent Claim
23 words
16 . The transceiver of claim 15 , wherein the at least one element coupled to a modulator is a variable gain amplifier.
Claim 19
Dependent Claim
19 words
17 . The transceiver of claim 15 , wherein the first multiple-access modulation technique comprises code division multiple access.
Claim 20
Dependent Claim
20 words
18 . The transceiver of claim 15 , wherein the second multiple-access modulation technique comprises global system for mobile communication.
Claim 21
Dependent Claim
104 words
19 . The transceiver of claim 15 , further comprising: a multiple channel receiver including a plurality of selectable receive channel components, the plurality of selectable receive channel components sharing at least one element coupled to an input of a demodulator, the plurality of selectable receive channel components forming at least first and second receive channels configured to receive radio-frequency signals using at least the first and second multiple-access modulation techniques; and a second switch configured to enable at least one of the first and second receive channels to receive a communication signal using one of the first and second multiple access modulation techniques.
Claim 22
Dependent Claim
26 words
20 . The transceiver of claim 19 , wherein the at least one element coupled to an output of a demodulator comprises a variable gain amplifier.
Claim 23
Dependent Claim
30 words
21 . The transceiver of claim 20 , wherein the first and second receive channels further share at least one element coupled to an antenna and an image reject filter.
Claim 24
Dependent Claim
23 words
22 . The transceiver of claim 21 , wherein the at least one element is coupled to the antenna via a preselector filter.
Claim 25
Dependent Claim
23 words
23 . The transceiver of claim 21 , wherein the at least one element is coupled to the antenna via a variable attenuator.
Claim 26
Dependent Claim
19 words
24 . The transceiver of claim 21 , wherein the at least one element comprises a low noise amplifier.
Claim 27
Dependent Claim
31 words
25 . The transceiver of claim 19 , wherein the first and second receive channels further share at least one element coupled to an image reject filter and an IF filter.
Claim 28
Dependent Claim
17 words
26 . The transceiver of claim 25 , wherein the at least one element comprises a mixer.
Claim 29
Dependent Claim
116 words
27 . A method for operating a multiple-mode multiple-band transceiver, comprising: providing a multiple-channel transmitter including a plurality of selectable transmit-channel components, the plurality of selectable transmit-channel components sharing at least one element coupled to an output of a transmit signal modulator, the plurality of selectable transmit channel components forming at least first and second transmit channels configured to generate radio-frequency signals using at least a first and a second multiple-access communication protocols, wherein both the first and the second transmit channels use a direct launch signal transmission technique; and enabling at least one of the first and second transmit channels to transmit a communication signal using one of the first and second multiple-access communication protocols.
Claim 30
Dependent Claim
116 words
27 . A method for operating a multiple-mode multiple-band transceiver, comprising: providing a multiple-channel transmitter including a plurality of selectable transmit-channel components, the plurality of selectable transmit-channel components sharing at least one element coupled to an output of a transmit signal modulator, the plurality of selectable transmit channel components forming at least first and second transmit channels configured to generate radio-frequency signals using at least a first and a second multiple-access communication protocols, wherein both the first and the second transmit channels use a direct launch signal transmission technique; and enabling at least one of the first and second transmit channels to transmit a communication signal using one of the first and second multiple-access communication protocols.
Claim 31
Dependent Claim
28 words
28 . The method of claim 27 , wherein the at least one element coupled to an output of the transmit signal modulator comprises a variable gain amplifier.
Claim 32
Dependent Claim
21 words
29 . The method of claim 27 , wherein the first multiple-access communication protocols comprises wideband code division multiple access (WCDMA).
Claim 33
Dependent Claim
21 words
30 . The method of claim 27 , wherein the second multiple-access communication protocols comprises global system for mobile (GSM) communication.
Claim 34
Dependent Claim
41 words
31 . The method of claim 27 , wherein providing further comprises forming a third transmit channel configured to generate radio-frequency signals using a third multiple-access communication protocols, wherein both the third transmit channel uses a direct launch signal transmission technique.
Claim 35
Dependent Claim
20 words
32 . The method of claim 31 , wherein the third multiple-access communication protocol comprises enhanced data for GSM evolution.
Claim 36
Dependent Claim
91 words
33 . The method of claim 27 , further comprising: providing a multiple channel receiver configured to receive radio-frequency signals using at least the first and second multiple-access communication protocols, said multiple channel receiver including a plurality of selectable receive channel components, the plurality of selectable receive channel components coupled to demodulation electronics configured to produce an in-phase data signal channel and a quadrature data channel; and enabling at least one of the multiple receive channels to receive a communication signal using one of the first and second multiple-access communication protocols.
Claim 37
Dependent Claim
27 words
34 . The method of claim 33 , wherein each of the in-phase data signal channel and the quadrature data signal channel comprise a variable gain amplifier.
Claim 38
Dependent Claim
27 words
35 . The method of claim 33 , wherein each of the in-phase data signal channel and the quadrature data signal channel comprise a second-order bandpass filter.
Claim 39
Dependent Claim
29 words
36 . The method of claim 33 , wherein each of the in-phase data signal channel and the quadrature data signal channel comprise at least one additional bandpass filter.
Claim 40
Dependent Claim
23 words
37 . The method of claim 36 , wherein the at least one additional bandpass filter has a filter order greater than two.
Claim 41
Dependent Claim
27 words
38 . The method of claim 33 , wherein each of the in-phase data signal channel and the quadrature data signal channel comprise a direct-coupled offset corrector.
Claim 42
Dependent Claim
19 words
39 . The method of claim 38 , wherein the direct-coupled offset corrector comprises a sample and hold circuit.
Claim 43
Dependent Claim
18 words
40 . The method of claim 38 , wherein the direct-coupled offset corrector comprises a continuous servo loop.
Claim 44
Dependent Claim
115 words
41 . A multiple-mode multiple band transceiver, comprising: a multiple-channel transmitter including a plurality of selectable transmit-channel components, the plurality of selectable transmit-channel components sharing at least one element coupled to a modulator, the plurality of selectable transmit channel components forming at least first and second transmit channels configured to generate radio-frequency signals using at least a first and a second multiple-access communication protocol, wherein both the first and the second transmit channels use a direct launch signal transmission technique; and a first switch configured to enable at least one of the first and second transmit channels to transmit a communication signal using at least one of the first and the second multiple-access communication protocols.
Claim 45
Dependent Claim
115 words
41 . A multiple-mode multiple band transceiver, comprising: a multiple-channel transmitter including a plurality of selectable transmit-channel components, the plurality of selectable transmit-channel components sharing at least one element coupled to a modulator, the plurality of selectable transmit channel components forming at least first and second transmit channels configured to generate radio-frequency signals using at least a first and a second multiple-access communication protocol, wherein both the first and the second transmit channels use a direct launch signal transmission technique; and a first switch configured to enable at least one of the first and second transmit channels to transmit a communication signal using at least one of the first and the second multiple-access communication protocols.
Claim 46
Dependent Claim
21 words
42 . The transceiver of claim 41 , wherein the first multiple-access communication protocol comprises wideband code division multiple access (WCDMA).
Claim 47
Dependent Claim
21 words
43 . The transceiver of claim 41 , wherein the second multiple-access communication protocol comprises global system for mobile communication (GSM).
Claim 48
Dependent Claim
37 words
44 . The transceiver of claim 41 , further comprising a third transmit channel configured to generate radio-frequency signals using a third multiple-access communication protocol, wherein the third transmit channel uses a direct launch signal transmission technique.
Claim 49
Dependent Claim
21 words
45 . The transceiver of claim 44 , wherein the third multiple-access communication protocol comprises enhanced data for GSM evolution (EDGE).
Claim 50
Dependent Claim
28 words
46 . The transceiver of claim 44 , wherein the third multiple-access communication protocol comprises at least one of Personal Communications System (PCS) and Data Communications System (DCS).
Claim 51
Dependent Claim
98 words
47 . The transceiver of claim 41 , further comprising: a multiple channel receiver configured to receive radio-frequency signals using at least the first and second multiple-access communication protocols, said multiple channel receiver including a plurality of selectable receive channel components, the plurality of selectable receive channel components coupled to a demodulator configured to produce an in-phase data signal channel and a quadrature data channel; and a second switch configured to enable at least one of the first and second receive channels to receive a communication signal using one of the first and second multiple access communication protocols.
Claim 52
Dependent Claim
21 words
48 . The transceiver of claim 47 , wherein a variable gain amplifier is coupled to an output of the demodulator.
Claim 53
Dependent Claim
27 words
49 . The transceiver of claim 47 , wherein each of the in-phase data signal channel and the quadrature data signal channel comprise a variable gain amplifier.
Claim 54
Dependent Claim
27 words
50 . The transceiver of claim 47 , wherein each of the in-phase data signal channel and the quadrature data signal channel comprise a second-order bandpass filter.
Claim 55
Dependent Claim
29 words
51 . The transceiver of claim 47 , wherein each of the in-phase data signal channel and the quadrature data signal channel comprise at least one additional bandpass filter.
Claim 56
Dependent Claim
23 words
52 . The transceiver of claim 51 , wherein the at least one additional bandpass filter has a filter order greater than two.
Claim 57
Dependent Claim
27 words
53 . The transceiver of claim 47 , wherein each of the in-phase data signal channel and the quadrature data signal channel comprise a direct-coupled offset corrector.
Claim 58
Dependent Claim
19 words
54 . The transceiver of claim 53 , wherein the direct-coupled offset corrector comprises a sample and hold circuit.
Claim 59
Dependent Claim
18 words
55 . The transceiver of claim 53 , wherein the direct-coupled offset corrector comprises a continuous servo loop.
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