Transmitter and receiver architecture for multi-mode wireless device
First Claim
1. A multi-mode wireless communication device capable of concurrent wireless communications with a plurality of wireless communication systems, the device comprising:
- a multi-mode transceiver having a single transmit signal path and a single receive signal path; and
a multi-mode baseband portion configured to configure an operating mode of the multi-mode transceiver in a time multiplex manner to each of the plurality of wireless communication systems to permit the concurrent wireless communications with the plurality of wireless communication systems, wherein the multi-mode transceiver comprises;
a local oscillator (LO) having a programmable frequency that can be tuned to frequencies spanning at least transmit and receive operating bands corresponding to the plurality of wireless communication systems;
a transmitter configured to receive a baseband transmit signal from the multi-mode baseband portion and frequency convert the baseband transmit signal, using the LO, to an RF transmit frequency in any one of the transmit operating bands of the plurality of wireless communication systems; and
a receiver configured to receive RF signals from any one of the receive operating bands and frequency convert the RF signals, using the LO, to a baseband receive signal.
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Accused Products
Abstract
A multi-mode wireless device having a transceiver including a multi-mode transmitter and a multi-mode receiver. The transmitter can include a multi-mode transmit baseband portion configured to support all of the transmit modes. Similarly, the receiver can include a multi-mode baseband portion that is configured to support all of the receive modes. The transmitter can also include a frequency conversion stage that can convert the output from the transmit baseband portion to the desired transmit frequency. Multiple power amplifiers in parallel, each configured to support one or more of the operating modes, can selectively amplify the transmit signals. The receiver can include multiple low noise amplifiers (LNAs) in parallel, each configured to selectively amplify the received signals of one or more of the operating modes. The output of the LNAs can be coupled to a frequency conversion stage that downconverts the received signals and provides them to the baseband portion.
40 Citations
28 Claims
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1. A multi-mode wireless communication device capable of concurrent wireless communications with a plurality of wireless communication systems, the device comprising:
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a multi-mode transceiver having a single transmit signal path and a single receive signal path; and a multi-mode baseband portion configured to configure an operating mode of the multi-mode transceiver in a time multiplex manner to each of the plurality of wireless communication systems to permit the concurrent wireless communications with the plurality of wireless communication systems, wherein the multi-mode transceiver comprises; a local oscillator (LO) having a programmable frequency that can be tuned to frequencies spanning at least transmit and receive operating bands corresponding to the plurality of wireless communication systems; a transmitter configured to receive a baseband transmit signal from the multi-mode baseband portion and frequency convert the baseband transmit signal, using the LO, to an RF transmit frequency in any one of the transmit operating bands of the plurality of wireless communication systems; and a receiver configured to receive RF signals from any one of the receive operating bands and frequency convert the RF signals, using the LO, to a baseband receive signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A multi-mode wireless communication device capable of concurrent wireless communications with a plurality of wireless communication systems, the device comprising:
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a multi-mode transceiver integrated circuit including a transmitter having a plurality of power amplifiers in parallel, each power amplifier configured to amplify signals in at least one distinct transmit band of one of the plurality of wireless communication systems, and a receiver having a plurality of Low Noise Amplifiers (LNAs) in parallel, each LNA configured to amplify signals in at least one distinct receive band of the plurality of wireless communication systems; and a multi-mode baseband portion configured to configure an operating mode of the multi-mode transceiver in a time multiplex manner to each of the plurality of wireless communication systems to-permit the concurrent wireless communications with the plurality of wireless communication systems, wherein the multi-mode baseband portion configures the operating mode of the multi-mode transceiver in part, by configuring a mutually exclusive transmit or receive mode of the multi-mode transceiver, and a local oscillator frequency. - View Dependent Claims (15, 16, 17, 18)
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19. A method of configuring a multi-mode wireless communication device, the method comprising:
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selecting a communication system from a plurality of supported wireless communication systems for which active communications are time division multiplexed; determining an operating mode for the selected wireless communication system from a predetermined time division multiplexing schedule based on a timing of a first of the plurality of supported wireless communication systems; configuring a multi-mode transceiver based in part on the operating mode by selectively deactivating at least one Low Noise Amplifier (LNA) from a plurality of LNAs in parallel, each LNA configured to amplify signals in at least one distinct receive band of the plurality of supported wireless communication systems; and operating in the operating mode for a predetermined period of time based on the predetermined time division multiplexing schedule. - View Dependent Claims (20, 21)
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22. A method of configuring a multi-mode wireless communication device, the method comprising time multiplexing an operating mode of a multi-mode wireless transceiver, wherein time multiplexing the operating mode comprises:
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configuring the multi-mode wireless transceiver for one of a plurality of operating modes from a predetermined time division multiplexing schedule based on a timing of a first of the plurality operating modes; selectively deactivating, for a predetermined duration that is based on the predetermined time division multiplexing schedule, at least one Low Noise Amplifier (LNA) from a plurality of LNAs in parallel within the multi-mode wireless transceiver, each LNA configured to amplify signals in at least one distinct receive band of a plurality of wireless communication systems; and selectively deactivating at least one of a plurality of power amplifiers in parallel within the multi-mode wireless transceiver, each power amplifier configured to amplify signals in at least one distinct transmit band of the plurality of wireless communication systems. - View Dependent Claims (23, 24, 25)
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26. A method of configuring a multi-mode wireless communication device, the method comprising:
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selecting a communication system from a plurality of supported wireless communication systems from a predetermined time division multiplexing schedule based on a timing of a first of the plurality communication systems; determining an operating mode for the selected wireless communication system; configuring a multi-mode transceiver based in part on the operating mode by selectively deactivating at least one of a plurality of power amplifiers in parallel, each power amplifier configured to amplify signals in at least one distinct transmit band of the plurality of supported wireless communication systems; and operating in the operating mode for a predetermined period of time. - View Dependent Claims (27, 28)
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Specification