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US 10,542,444 B2Granted
Methods and apparatus for radio link monitoring in unlicensed communication channels
AssigneeQUALCOMM Incorporated
InventorsAndrei Radulescu, Tao Luo, Chirag Patel
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Abstract
Certain aspects of the present disclosure relate to a methods and apparatus for wireless communication. In one aspect, a method of wireless communication comprises receiving, by a long term evolution unlicensed (LTE-U) device, a plurality of signals from an access point on an unlicensed communication spectrum. The method further comprises determining, by the device, whether a signal of the plurality of signals comprises a discovery signal. The method further comprises monitoring a radio link based on, the signal if the signal is determined to comprise the discovery signal.
Claims28
A method of wireless communication comprising:
- receiving, by a device, a plurality of signals from an access point on an unlicensed communication spectrum;
- determining, by the device, whether a first signal of the plurality of signals comprises a first discovery signal based on a quality of the first signal, wherein the first signal is a sub-frame occurring within a downlink monitoring transmission configuration (DMTC) window;
- determining, by the device, whether a second signal of the plurality of signals comprises a second discovery signal based on a quality of the second signal, wherein the second signal is a different sub-frame occurring within the DMTC window than the subframe window of the first signal;
- monitoring, by the device, a radio link based on a combination of the quality of the first signal and the quality of the second signal if the first signal is determined to comprise the first discovery signal and the second signal is determined to comprise the second discovery signal;
- and
- generating a blocking indication in response to being unable to determine that the first signal comprises the first discovery signal and that the second signal comprises the second discovery signal.
3 more elements
A device for wireless communication, the device comprising:
- an electronic hardware processor configured to:
- receive a plurality of signals from an access point on an unlicensed communication spectrum;
- determine whether a first signal of the plurality of signals comprises a first discovery signal based on a quality of the first signal, wherein the first signal is a subframe occurring within a downlink monitoring transmission configuration (DMTC) window;
- determine whether a second signal of the plurality of signals comprises a second discovery signal based on a quality of the second signal, wherein the second signal is a different sub-frame occurring within the DMTC window than the sub-frame window of the first signal;
- monitor a radio link based on a combination of the quality of the first signal and the quality of the second signal if the first signal is determined to comprise the first discovery signal and the second signal is determined to comprise the second discovery signal;
- and
- generate a blocking indication in response to being unable to determine that the first signal comprises the first discovery signal and that the second signal comprises the second discovery signal.
4 more elements
A device for wireless communication, the device comprising:
- means for receiving a plurality of signals from an access point on an unlicensed communication spectrum;
- means for determining whether a first signal of the plurality of signals comprises a first discovery signal based on a quality of the first signal, wherein the first signal is a sub-frame occurring within a downlink monitoring transmission configuration (DMTC) window;
- means for determining whether a second signal of the plurality of signals comprises a second discovery signal based on a quality of the second signal, wherein the second signal is a different sub-frame occurring within the DMTC window than the sub-frame window of the first signal;
- means for monitoring a radio link based on a combination of the quality of the first signal and the quality of the second signal if the first signal is determined to comprise the first discovery signal and the second signal is determined to comprise the second discovery signal;
- and
- means for generating a blocking indication in response to being unable to determine that the first signal comprises the first discovery signal and that the second signal comprises the second discovery signal.
3 more elements
A non-transitory computer-readable medium comprising instructions that, when executed, perform a method of wireless communication, the method comprising:
- receiving, by a device, a plurality of signals from an access point on an unlicensed communication spectrum;
- determining, by the device, whether a first signal of the plurality of signals comprises a first discovery signal based on a quality of the first signal, wherein the first signal is a sub-frame occurring within a downlink monitoring transmission configuration (DMTC) window;
- determining whether a second signal of the plurality of signals comprises a second discovery signal based on a quality of the second signal, wherein the second signal is a different sub-frame occurring within the DMTC window than the sub-frame window of the first signal;
- monitoring, by the device, a radio link based on a combination of the quality of the first signal and the quality of the second signal if the first signal is determined to comprise the first discovery signal and the second signal is determined to comprise the second discovery signal;
- and
- generating a blocking indication in response to being unable to determine that the first signal comprises the first discovery signal and that the second signal comprises the second discovery signal.
3 more elements
Dependencies are inferred from the claim text.