Autonomous uplink transmissions on a shared communication medium
First Claim
1. A method of operating an access terminal configured to selectively implement autonomous uplink (AUL) transmissions, comprising:
- monitoring, by the access terminal, a Discovery Reference Signaling (DRS) Measurement Timing Configuration (DMTC) window of a shared communication medium while being prohibited from contending for the shared communication medium for performing any AUL transmission irrespective of a level of traffic activity detected on the shared communication medium;
determining, based on the monitoring, that the prohibition is removed; and
selectively transmitting, by the access terminal, one or more AUL transmissions by contending for the shared communication medium after the prohibition is removed based on the determining.
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Accused Products
Abstract
In an embodiment, an AT monitors a DMTC window of a shared communication medium while refraining from performing any AUL transmissions. The AT selectively transmits one or more AUL transmissions based on the monitoring (e.g., in response to DRS detection, either in one or more subframes of the DMTC window or outside of the DMTC window). In a further embodiment, the AT establishes different LBT contention windows for use during and outside of POWs and/or DMTC windows. In a further embodiment, the AT receives an AUL disable signal instructing the AT to disable AUL transmissions, and the AT refrains from performing one or more AUL transmissions on the shared communication medium in response to the AUL disable signal.
14 Citations
28 Claims
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1. A method of operating an access terminal configured to selectively implement autonomous uplink (AUL) transmissions, comprising:
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monitoring, by the access terminal, a Discovery Reference Signaling (DRS) Measurement Timing Configuration (DMTC) window of a shared communication medium while being prohibited from contending for the shared communication medium for performing any AUL transmission irrespective of a level of traffic activity detected on the shared communication medium; determining, based on the monitoring, that the prohibition is removed; and selectively transmitting, by the access terminal, one or more AUL transmissions by contending for the shared communication medium after the prohibition is removed based on the determining. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating an access terminal configured to selectively implement autonomous uplink (AUL) transmissions, comprising:
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establishing a first Listen Before Talk (LBT) contention window duration for use outside of paging opportunity windows (POWs) and/or Discovery Reference Signaling (DRS) Measurement Timing Configuration (DMTC) windows of a shared communication medium and a second LBT contention window duration for use during the POWs and/or the DMTC windows of the shared communication medium; detecting, by the access terminal, a POW and/or a DMTC window; and setting, by the access terminal, an LBT contention window for uplink transmission attempts by the access terminal on the shared communication medium to the second LBT contention window duration in response to the detecting. - View Dependent Claims (12, 13, 14)
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15. A method of operating an access terminal configured to selectively implement autonomous uplink (AUL) transmissions, comprising:
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receiving, by the access terminal, an AUL disable signal instructing the access terminal to disable AUL transmissions on a shared communication medium as part of a collision avoidance scheme; and refraining, by the access terminal, from performing one or more AUL transmissions on the shared communication medium in response to the AUL disable signal, wherein the AUL disable signal is cell-specific. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. An access terminal configured to selectively implement autonomous uplink (AUL) transmissions, comprising:
at least one processor coupled to at least one transceiver and configured to; monitor a Discovery Reference Signaling (DRS) Measurement Timing Configuration (DMTC) window of a shared communication medium while being prohibited from contending for the shared communication medium for performing any AUL transmission irrespective of a level of traffic activity detected on the shared communication medium; determine, based on the monitoring, that the prohibition is removed; and selectively transmit one or more AUL transmissions by contending for the shared communication medium after the prohibition is removed based on the determination. - View Dependent Claims (24, 25, 26, 27, 28)
Specification