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US 10,833,827 B2Granted
V2X control and data channel indication during LBT
AssigneeQUALCOMM Incorporated
InventorsSudhir Kumar Baghel, Tao Luo, Shailesh Patil
Life of this patent
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Abstract
Aspects of the disclosure relate to mechanisms for encoding and transmitting an encoded channel indication that indicates a starting sub-channel and a number of sub-channels for a transmission over a vehicle-to-everything (V2X) carrier. The encoded channel indicator may be transmitted within at least one symbol of a listen-before-talk (LBT) section of a slot.
Claims27
A method for wireless communication over a vehicle-to-everything (V2X) carrier, the V2X carrier comprising spectrum that is time-divided into a plurality of slots and frequency-divided into a plurality of sub-channels, the method comprising, at a V2X device:
- selecting resources comprising a starting sub-channel and a set of contiguous sub-channels of the plurality of sub-channels for a transmission, each of the plurality of sub-channels comprising a set of contiguous subcarriers;
- determining, based on the selected resources, a resource indication indicative of the starting sub-channel and the set of contiguous sub-channels for the transmission;
- encoding the resource indication to produce an encoded channel indicator;
- transmitting the encoded channel indicator over the set of contiguous sub-channels starting from the starting sub-channel within at least one symbol of a listen-before-talk (LBT) section of a slot of the plurality of slots, including transmitting the encoded channel indicator at least twice within a first symbol of the at least one symbol;
- and
- transmitting information corresponding to the transmission within a transmit section of the slot.
3 more elements
A method for wireless communication over a vehicle-to-everything (V2X) carrier, the V2X carrier comprising spectrum that is time-divided into a plurality of slots and frequency-divided into a plurality of sub-channels, the method comprising, at a V2X device:
- selecting resources comprising a starting sub-channel and a set of contiguous sub-channels of the plurality of sub-channels for a transmission, each of the plurality of sub-channels comprising a set of contiguous subcarriers;
- calculating a resource indicator value (RIV) from the starting sub-channel and the set of contiguous sub-channels for the transmission;
- polar encoding the RIV to produce the encoded channel indicator;
- transmitting the encoded channel indicator over the set of contiguous sub-channels starting from the starting sub-channel within at least one symbol of a listen-before-talk (LBT) section of a slot of the plurality of slots;
- and
- transmitting information corresponding to the transmission within a transmit section of the slot.
3 more elements
A vehicle-to-everything (V2X) device, comprising:
- a processor;
- a wireless transceiver communicatively coupled to the processor and configured to communicate over a V2X carrier comprising spectrum that is time-divided into a plurality of slots and frequency-divided into a plurality of sub-channels, each of the plurality of sub-channels comprising a set of contiguous subcarriers;
- and
- a memory communicatively coupled to the processor, wherein the processor is configured to:
- select resources comprising a starting sub-channel and a set of contiguous sub-channels of the plurality of sub-channels for a transmission;
- determine, based on the selected resources, a resource indication indicative of the starting sub-channel and the set of contiguous sub-channels for the transmission;
- encode the resource indication to produce an encoded channel indicator;
- transmit the encoded channel indicator over the set of contiguous sub-channels starting from the starting sub-channel within at least one symbol of a listen-before-talk (LBT) section of a slot of the plurality of slots via the wireless transceiver, including transmission of the encoded channel indicator at least twice within a first symbol of the at least one symbol;
- and
- transmit information corresponding to the transmission within a transmit section of the slot via the wireless transceiver.
7 more elements
A vehicle-to-everything (V2X) device, comprising:
- a processor;
- a wireless transceiver communicatively coupled to the processor and configured to communicate over a V2X carrier comprising spectrum that is time-divided into a plurality of slots and frequency-divided into a plurality of sub-channels, each of the plurality of sub-channels comprising a set of contiguous subcarriers;
- and
- a memory communicatively coupled to the processor, wherein the processor is further configured to:
- select resources comprising a starting sub-channel and a set of contiguous sub-channels of the plurality of sub-channels for a transmission, each of the plurality of sub-channels comprising a set of contiguous subcarriers;
- calculate a resource indicator value (MV) from the starting sub-channel and the set of contiguous sub-channels for the transmission;
- polar encoding the MV to produce the encoded channel indicator;
- transmit, via the wireless transceiver, the encoded channel indicator over the set of contiguous sub-channels starting from the starting sub-channel within at least one symbol of a listen-before-talk (LBT) section of a slot of the plurality of slots;
- and
- transmit, via the wireless transceiver, information corresponding to the transmission within a transmit section of the slot.
7 more elements
A method for wireless communication over a vehicle-to-everything (V2X) carrier comprising spectrum that is time-divided into a plurality of slots and frequency-divided into a plurality of sub-channels, each of the plurality of sub-channels comprising a set of contiguous subcarriers, the method comprising, at a V2X device:
- receiving an encoded channel indicator within at least one symbol of a listen-before-talk (LBT) section of a slot of the plurality of slots, the encoded channel indicator having been transmitted at least twice within a first symbol of the at least one symbol;
- decoding the encoded channel indicator to identify a starting sub-channel and a set of contiguous sub-channels of the plurality of sub-channels for receiving a transmission over the V2X carrier;
- and
- receiving information corresponding to the transmission over the set of contiguous sub-channels starting from the starting sub-channel within a transmit section of the slot.
1 more element
A method for wireless communication over a vehicle-to-everything (V2X) carrier comprising spectrum that is time-divided into a plurality of slots and frequency-divided into a plurality of sub-channels, each of the plurality of sub-channels comprising a set of contiguous subcarriers, the method comprising, at V2X device:
- receiving a polar encoded channel indicator within at least one symbol of a listen-before-talk (LBT) section of a slot of the plurality of slots;
- decoding the polar encoded channel indicator to identify a starting sub-channel and a set of contiguous sub-channels of the plurality of sub-channels for receiving a transmission over the V2X carrier;
- and
- receiving information corresponding to the transmission over the set of contiguous sub-channels starting from the starting sub-channel within a transmit section of the slot;
- wherein the polar encoded channel indicator comprises a polar encoded resource indicator value (MV) calculated from the starting sub-channel within the resources and the set of contiguous sub-channels for the transmission.
2 more elements
A vehicle-to-everything (V2X) device, comprising:
- a processor;
- a wireless transceiver communicatively coupled to the processor and configured to communicate over a V2X carrier comprising spectrum that is time-divided into a plurality of slots and frequency-divided into a plurality of sub-channels, each of the plurality of sub-channels comprising a set of contiguous subcarriers;
- and
- a memory communicatively coupled to the processor, wherein the processor is configured to:
- receive an encoded channel indicator within at least one symbol of a listen-before-talk (LBT) section of a slot of the plurality of slots, the encoded channel indicator having been transmitted at least twice within a first symbol of the at least one symbol;
- decode the encoded channel indicator to identify a starting sub-channel and a set of contiguous sub-channels of the plurality of sub-channels for receiving a transmission over the V2X carrier;
- and
- receive information corresponding to the transmission over the set of contiguous sub-channels starting from the starting sub-channel within a transmit section of the slot.
5 more elements
A vehicle-to-everything (V2X) device, comprising:
- a processor;
- a wireless transceiver communicatively coupled to the processor and configured to communicate over a V2X carrier comprising spectrum that is time-divided into a plurality of slots and frequency-divided into a plurality of sub-channels, each of the plurality of sub-channels comprising a set of contiguous subcarriers;
- and
- a memory communicatively coupled to the processor, wherein the processor is configured to:
- receive a polar encoded channel indicator within at least one symbol of a listen-before-talk (LBT) section of a slot of the plurality of slots;
- decode the polar encoded channel indicator to identify a starting sub-channel and a set of contiguous sub-channels of the plurality of sub-channels for receiving a transmission over the V2X carrier;
- and
- receive information corresponding to the transmission over the set of contiguous sub-channels starting from the starting sub-channel within a transmit section of the slot;
- wherein the polar encoded channel indicator comprises a polar encoded resource indicator value (MV) calculated from the starting sub-channel within the resources and the set of contiguous sub-channels for the transmission.
6 more elements
Dependencies are inferred from the claim text.