Method for suppressing transmission noise comprised in received downlink signal and communications apparatus utilizing the same
First Claim
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1. A communications apparatus, comprising:
- a first radio module, providing a first wireless communications service and communicating with a first communications device in compliance with a first protocol;
a second radio module, providing a second wireless communications service and communicating with a second communications device in compliance with a second protocol; and
a transmission noise suppression device, coupled to at least one of the first radio module and second radio module and operative to process a plurality of downlink signals received by the first radio module to cancel transmission noise comprised in the plurality of downlink signals,wherein the transmission noise is generated when the second radio module is processing a plurality of uplink signals to be transmitted.
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Abstract
A communications apparatus is disclosed. A first radio module provides a first wireless communications service and communicates with a first communications device in compliance with a first protocol. A second radio module provides a second wireless communications service and communicates with a second communications device in compliance with a second protocol. A transmission noise suppression device is operative to process downlink signals received by the first radio module to cancel transmission noise comprised in the downlink signals, where the transmission noise is generated when the second radio module is processing uplink signals to be transmitted.
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26 Claims
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1. A communications apparatus, comprising:
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a first radio module, providing a first wireless communications service and communicating with a first communications device in compliance with a first protocol; a second radio module, providing a second wireless communications service and communicating with a second communications device in compliance with a second protocol; and a transmission noise suppression device, coupled to at least one of the first radio module and second radio module and operative to process a plurality of downlink signals received by the first radio module to cancel transmission noise comprised in the plurality of downlink signals, wherein the transmission noise is generated when the second radio module is processing a plurality of uplink signals to be transmitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for suppressing transmission noise comprised in a plurality of downlink signals received by one of a first radio module or a second radio module comprised in a communications apparatus, wherein the transmission noise is generated when the other one of the first radio module or the second radio module is processing a plurality of uplink signals to be transmitted, the method comprising:
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receiving a plurality of first signals and a plurality of second signals; calculating a plurality of filter parameters for a filter according to the first signals and the second signals; filtering the first signals via the filter to obtain a plurality of filtered signals; subtracting the second signals from the filtered signals to obtain a plurality of processed signals, wherein the first signals and the second signals are the downlink signals respectively received via different antennas of the one of the first radio module or the second radio module, or the first signals are the downlink signals received by the one of the first radio module or the second radio module and the second signals are a portion of the uplink signals provided by the other one of the first radio module and the second radio module, and wherein the transmission noise does not manifest in the processed signals. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A method applied in a communications apparatus comprising a first radio module or a second radio module for suppressing transmission noise comprised in a plurality of downlink signals received by the second radio module, wherein the transmission noise is generated when the first radio module is processing a plurality of uplink signals to be transmitted, the method comprising:
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coupling a transmitting path of the first radio module to a down-conversion circuit; down-converting a transmitting signal of the first radio module to a frequency band utilized by the second radio module to generate a down-converted signal; and processing the down-converted signal and a plurality of downlink signals received by the second radio module to cancel transmission noise comprised in the plurality of downlink signals. - View Dependent Claims (25, 26)
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Specification