CROSS-TALK CANCELLATION IN A MULTIBAND TRANSCEIVER
First Claim
1. A multiband transceiver apparatus, comprising:
- a first transmit path operable to transmit a first transmit signal in a first radio frequency band, wherein the first transmit path comprises an input, an output and a first feedback path from the output towards the input of the first transmit path;
a second transmit path operable to transmit a second signal in a second radio frequency band, the second radio frequency band being different from the first radio frequency band, wherein the second transmit path comprises an input, an output and a second feedback path from the output towards the input of the second transmit path; and
a cross-talk canceller operable to cancel cross-talk from the second feedback path to the first feedback path and/or to cancel cross-talk from the first feedback path to the second feedback path of the multiband transceiver apparatus.
1 Assignment
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Accused Products
Abstract
Embodiments relate to a multiband transceiver apparatus (100), comprising a first transmit path (110) operable to transmit a first transmit signal (sig1) in a first radio frequency band (RF1), wherein the first transmit path (110) comprises an input (112), an output (114) and a first feedback path (116) from the output towards the input of the first transmit path, a second transmit path (130) operable to transmit a second signal (sig2) in a second radio frequency band (RF2), the second radio frequency band (RF2) being different from the first radio frequency band (RF1), wherein the second transmit path (130) comprises an input (132), an output (134) and a second feedback path (136) from the output towards the input of the second transmit path, and a cross-talk canceller (150) operable to cancel cross-talk from the second feedback path (136) to the first feedback path (116) and/or to cancel cross-talk from the first feedback path (116) to the second feedback path (136) of the multiband transceiver apparatus (100)
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Citations
15 Claims
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1. A multiband transceiver apparatus, comprising:
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a first transmit path operable to transmit a first transmit signal in a first radio frequency band, wherein the first transmit path comprises an input, an output and a first feedback path from the output towards the input of the first transmit path; a second transmit path operable to transmit a second signal in a second radio frequency band, the second radio frequency band being different from the first radio frequency band, wherein the second transmit path comprises an input, an output and a second feedback path from the output towards the input of the second transmit path; and a cross-talk canceller operable to cancel cross-talk from the second feedback path to the first feedback path and/or to cancel cross-talk from the first feedback path to the second feedback path of the multiband transceiver apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for operating a multiband transceiver, comprising:
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transmitting, via a first transmit path, a first transmit signal in a first radio frequency band, wherein the first transmit path comprises an input, an output and a first feedback path from the output towards the input of the first transmit path; transmitting, via a second transmit path, a second signal in a second radio frequency band, the second radio frequency band being different from the first radio frequency band, wherein the second transmit path comprises an input, an output and a second feedback path from the output towards the input of the second transmit path; and cancelling cross-talk from the second feedback path to the first feedback path and/or to cancel cross-talk from the first feedback path to the second feedback path of the multiband transceiver. - View Dependent Claims (15)
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Specification