DMTC WINDOW RESERVATION SIGNAL IN NR SHARED SPECTRUM
First Claim
1. A method of wireless communication, comprising:
- receiving, by a user equipment (UE), a semi-persistent reservation signal from a serving base station during a discovery measurement timing configuration (DMTC) window, wherein the semi-persistent reservation signal identifies reservation of a shared communication channel;
re-transmitting, by the UE, the semi-persistent reservation signal in response to the receiving, wherein the re-transmitting the semi-persistent reservation signal includes adding an offset period to the re-transmitted semi-persistent reservation signal; and
engaging in communication with the serving base station by the UE within a clear channel assessment (CCA)-exempt transmission (CET) period of the shared communication channel identified by the semi-persistent reservation signal after the DMTC window.
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Accused Products
Abstract
A discovery measurement timing configuration (DMTC) window reservation signal is disclosed for new radio (NR) shared spectrum (NR-SS) networks. The DMTC window is defined providing a reserved location for transmission of essential control signaling and potentially high priority traffic that may be transmitted in a prioritized manner. Access within the DMTC window may be provided with a clear channel assessment (CCA) exempt transmission (CET) option or a non-CET option. When the CET option is used, the reservation duration and period may be conveyed through the channel reservation signal. User equipments (UEs) that detect the reservation signal may re-transmit with added offset to inform neighboring base station that may not be within range of the serving base station. Base station that receive either the transmitted or re-transmitted reservation signal will refrain from communications that may interfere with the reception at the UEs.
25 Citations
20 Claims
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1. A method of wireless communication, comprising:
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receiving, by a user equipment (UE), a semi-persistent reservation signal from a serving base station during a discovery measurement timing configuration (DMTC) window, wherein the semi-persistent reservation signal identifies reservation of a shared communication channel; re-transmitting, by the UE, the semi-persistent reservation signal in response to the receiving, wherein the re-transmitting the semi-persistent reservation signal includes adding an offset period to the re-transmitted semi-persistent reservation signal; and engaging in communication with the serving base station by the UE within a clear channel assessment (CCA)-exempt transmission (CET) period of the shared communication channel identified by the semi-persistent reservation signal after the DMTC window. - View Dependent Claims (2, 3, 4, 5)
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6. A method of wireless communication, comprising:
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reserving, by a base station, a transmission period on a shared communication channel within a discovery measurement timing configuration (DMTC) window; transmitting, by the base station, control signals during the DMTC window after the reserving; and communicating, by the base station, with one or more served user equipments (UEs) after the DMTC window. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A method of wireless communications, comprising:
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communicating, by a base station, with one or more served user equipments (UEs) using a shared communication channel; detecting, by the base station, a semi-persistent channel reservation signal on the shared communication channel during a gap in the communicating; and refraining from resuming the communicating using the shared communication channel for a predetermined time after the detecting. - View Dependent Claims (14, 15)
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16. An apparatus configured for wireless communication, the apparatus 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 receive, by a user equipment (UE), a semi-persistent reservation signal from a serving base station during a discovery measurement timing configuration (DMTC) window, wherein the semi-persistent reservation signal identifies reservation of a shared communication channel; to re-transmit, by the UE, the semi-persistent reservation signal in response to execution of the configuration of the at least one processor to receive, wherein the configuration of the at least one processor to re-transmit the semi-persistent reservation signal includes configuration to add an offset period to the re-transmitted semi-persistent reservation signal; and to engage in communication with the serving base station by the UE within a clear channel assessment (CCA)-exempt transmission (CET) period of the shared communication channel identified by the semi-persistent reservation signal after the DMTC window. - View Dependent Claims (17, 18, 19, 20)
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Specification