Uplink Procedures For LTE/LTE-A Communication Systems With Unlicensed Spectrum
First Claim
Patent Images
1. A method of wireless communication, comprising:
- generating, at a user equipment (UE), one or more uplink signals for transmission to a serving base station, wherein the UE is configured to transmit communication signals to the serving base station over at least an unlicensed spectrum and receive communication signals from the serving base station;
determining, by the UE, a non-clear channel assessment (non-CCA) subframe for transmission of at least one of the one or more uplink signals; and
transmitting, by the UE over an unlicensed band, the at least one of the one or more uplink signals in the non-CCA subframe.
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Abstract
Long term evolution (LTE)/LTE-Advanced (LTE-A) deployments with unlicensed spectrum leverage more efficient LTE communication aspects over unlicensed spectrum, such as over WIFI radio access technology. In order to accommodate such communications, various uplink procedures may be modified in order to handle communications between licensed and unlicensed spectrum with LTE/LTE-A deployments with unlicensed spectrum.
108 Citations
30 Claims
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1. A method of wireless communication, comprising:
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generating, at a user equipment (UE), one or more uplink signals for transmission to a serving base station, wherein the UE is configured to transmit communication signals to the serving base station over at least an unlicensed spectrum and receive communication signals from the serving base station; determining, by the UE, a non-clear channel assessment (non-CCA) subframe for transmission of at least one of the one or more uplink signals; and transmitting, by the UE over an unlicensed band, the at least one of the one or more uplink signals in the non-CCA subframe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of wireless communication, comprising:
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identifying, by a serving base station configured for communication over at least an unlicensed spectrum, a non-clear channel assessment (non-CCA) subframe for reception of at least one uplink signal; and receiving, at the serving base station, over an unlicensed band one or more uplink signals from a user equipment (UE) in the non-CCA subframe. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An apparatus configured for wireless communication, comprising:
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at least one processor; and a memory coupled to the at least one processor, wherein the at least one processor is configured; to generate, at a user equipment (UE), one or more uplink signals for transmission to a serving base station, wherein the UE is configured to transmit communication signals to the serving base station over at least an unlicensed spectrum and receive communication signals from the serving base station; to determine, by the UE, a non-clear channel assessment (non-CCA) subframe for transmission of at least one of the one or more uplink signals; and to transmit, by the UE over an unlicensed band, the at least one of the one or more uplink signals in the non-CCA subframe. - View Dependent Claims (25, 26, 27)
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28. An apparatus configured for wireless communication, comprising:
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at least one processor; and a memory coupled to the at least one processor, wherein the at least one processor is configured; to identify, by a serving base station configured for communication over at least an unlicensed spectrum, a non-clear channel assessment (non-CCA) subframe for reception of at least one uplink signal; and to receive, at the serving base station, over an unlicensed band one or more uplink signals from a user equipment (UE) in the non-CCA subframe. - View Dependent Claims (29, 30)
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Specification