Coexistence between primary chains and auxiliary receiver chain in a WLAN device
First Claim
Patent Images
1. A method, comprising:
- in a Wireless Local Area Network (WLAN) device, which includes (i) at least one antenna, (ii) one or more primary transmission/reception (TX/RX) chains and (iii) an auxiliary reception (RX) chain that shares a common antenna and a common Low-Noise Amplifier (LNA) with a primary TX/RX chain designated from among the primary TX/RX chains, defining a first operational mode in which priority is given to transmission of the primary TX/RX chains, and a second operational mode in which the priority is given to reception of the auxiliary RX chain; and
while operating the WLAN device alternately in the first and second operational modes;
tuning the primary TX/RX chains to a given communication channel having a first channel frequency; and
tuning the auxiliary RX chain to one or more alternative communication channels having second channel frequencies that are different from the first channel frequencysetting a gain of the common LNA, by;
checking whether signals are received in both the auxiliary RX chain and the primary TX/RX chain, or whether a signal is received in only one of the auxiliary RX chain and the primary TX/RX chain;
when the signals are received in both the auxiliary RX chain and the primary TX/RX chain, setting the gain of the common LNA either based on a first signal received via the common LNA by the primary TX/RX chain on the given communication channel, or based on a second signal received via the common LNA by the auxiliary RX chain on the one or more alternative communication channels;
otherwise, when the signal is received only in the auxiliary RX chain and not in the primary TX/RX chain, setting the gain of the common LNA based on the signal received in the auxiliary RX chain; and
otherwise, when the signal is received only in the primary TX/RX chain and not in the auxiliary RX chain, setting the gain of the common LNA based on the signal received in the primary TX/RX chain; and
after setting the gain of the common LNA, communicating via the common LNA on the given communication channel using the one or more primary TX/RX chains, and concurrently evaluating signal activity via the common LNA and the common antenna on the one or more alternative communication channels using the auxiliary RX chain.
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Abstract
A method includes, in a Wireless Local Area Network (WLAN) device that includes one or more primary transmission/reception (TX/RX) chains and an auxiliary reception (RX) chain, defining a first operational mode in which priority is given to transmission of the primary TX/RX chains, and a second operational mode in which the priority is given to reception of the auxiliary RX chain. communication is performed on a given communication channel using the primary TX/RX chains, and evaluation of signal activity is performed on one or more alternative communication channels using the auxiliary reception (RX) chain, while operating the WLAN device alternately in the first and second operational modes.
61 Citations
24 Claims
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1. A method, comprising:
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in a Wireless Local Area Network (WLAN) device, which includes (i) at least one antenna, (ii) one or more primary transmission/reception (TX/RX) chains and (iii) an auxiliary reception (RX) chain that shares a common antenna and a common Low-Noise Amplifier (LNA) with a primary TX/RX chain designated from among the primary TX/RX chains, defining a first operational mode in which priority is given to transmission of the primary TX/RX chains, and a second operational mode in which the priority is given to reception of the auxiliary RX chain; and while operating the WLAN device alternately in the first and second operational modes; tuning the primary TX/RX chains to a given communication channel having a first channel frequency; and tuning the auxiliary RX chain to one or more alternative communication channels having second channel frequencies that are different from the first channel frequency setting a gain of the common LNA, by; checking whether signals are received in both the auxiliary RX chain and the primary TX/RX chain, or whether a signal is received in only one of the auxiliary RX chain and the primary TX/RX chain; when the signals are received in both the auxiliary RX chain and the primary TX/RX chain, setting the gain of the common LNA either based on a first signal received via the common LNA by the primary TX/RX chain on the given communication channel, or based on a second signal received via the common LNA by the auxiliary RX chain on the one or more alternative communication channels; otherwise, when the signal is received only in the auxiliary RX chain and not in the primary TX/RX chain, setting the gain of the common LNA based on the signal received in the auxiliary RX chain; and otherwise, when the signal is received only in the primary TX/RX chain and not in the auxiliary RX chain, setting the gain of the common LNA based on the signal received in the primary TX/RX chain; and after setting the gain of the common LNA, communicating via the common LNA on the given communication channel using the one or more primary TX/RX chains, and concurrently evaluating signal activity via the common LNA and the common antenna on the one or more alternative communication channels using the auxiliary RX chain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A Wireless Local Area Network (WLAN) device, comprising:
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at least one antenna; one or more primary transmission/reception (TX/RX) chains; an auxiliary reception (RX) chain, which shares a common antenna and a common Low-Noise Amplifier (LNA) with a primary TX/RX chain designated from among the primary TX/RX chains; and a control unit, which is configured to; tune the primary TX/RX chains to a given communication channel having a first channel frequency, and tune the auxiliary RX chain to one or more alternative communication channels having second channel frequencies that are different from the first channel frequency, while operating alternately in a first operational mode in which priority is given to transmission of the primary TX/RX chains, and in a second operational mode in which the priority is given to reception of the auxiliary RX chain, wherein the control unit is further configured to set a gain of the common LNA, by; checking whether signals are received in both the auxiliary RX chain and the primary TX/RX chain, or whether a signal is received in only one of the auxiliary RX chain and the primary TX/RX chain; when the signals are received in both the auxiliary RX chain and the primary TX/RX chain, setting the gain of the common LNA either based on a first signal received via the common LNA by the primary TX/RX chain on the given communication channel, or based on a second signal received via the common LNA by the auxiliary RX chain on the one or more alternative communication channels; otherwise, when the signal is received only in the auxiliary RX chain and not in the primary TX/RX chain, setting the gain of the common LNA based on the signal received in the auxiliary RX chain; and otherwise, when the signal is received only in the primary TX/RX chain and not in the auxiliary RX chain, setting the gain of the common LNA based on the signal received in the primary TX/RX chain; and after setting the gain of the common LNA, communicate via the common LNA on the given communication channel using the one or more primary TX/RX chains, and concurrently evaluate signal activity via the common LNA and the common antenna on the one or more alternative communication channels using the auxiliary RX chain. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification