Downlink control information (DCI) format for grant-less uplink transmission (GUL)
AssigneeApple Inc.
InventorsWenting Chang, Jinyu Zhang, Huaning Niu, Jeongho Jeon, Salvatore Talarico
Life of this patent
Estimating the term…
Abstract
Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a first Downlink Control Information (DCI) format 0A transmission indicating a Grant-less Uplink (GUL) activation. The first circuitry may also be operable to process a second DCI format 0A transmission indicating a GUL release. The second circuitry may be operable to generate one or more Uplink (UL) transmissions for an unlicensed spectrum of the wireless network after the GUL activation and before the GUL release.
Claims23
A User Equipment (UE) for communicating with a base station on a wireless network, the UE comprising:
- one or more processors configured to:
- process a first Downlink Control Information (DCI) format OA transmission indicating a Grant-less Uplink (GUL) activation,
- generate one or more Uplink (UL) transmissions for an unlicensed spectrum of the wireless network responsive to the GUL activation,
- process a second DCI format 0A transmission after sending the one or more UL transmissions, the second DCI format 0A transmission being a GUL-DCI (G-DCI) transmission in a G-DCI format comprising one or more UE-specific parameters associated with the one or more UL transmissions and a plurality of redundant bits to cause the second DCI format OA transmission to be a pre-determined length, wherein the pre-determined length is determined based on a bandwidth of the unlicensed spectrum used for the G-DCI transmission, and process a third DCI format 0A transmission indicating a GUL release;
- and
- an interface configured to:
- send the one or more UL transmissions to a transmission circuitry, and
- receive the first DCI format 0A transmission and the second DCI format 0A transmission from a receiving circuitry.
A non-transitory machine readable storage media having machine executable instructions that, when executed, cause one or more processors of a User Equipment (UE) operable to communicate with a base station on a wireless network to perform operations, the operations comprising:
- processing a first Downlink Control Information (DCI) format 0A transmission indicating a Grant-less Uplink (GUL) activation;
- generating one or more Uplink (UL) transmissions for an unlicensed spectrum of the wireless network responsive to the GUL activation;
- processing a second DCI format 0A transmission after sending the one or more UL transmissions, the second DCI format 0A transmission being a GUL-DCI (G-DCI) transmission in a G-DCI format comprising one or more UE-specific parameters associated with the one or more UL transmissions and a plurality of redundant bits to cause the second DCI format 0A transmission to be a pre-determined length, wherein the pre-determined length is determined based on a bandwidth of the unlicensed spectrum used for the G-DCI transmission;
- and
- processing a third DCI format 0A transmission indicating a GUL release.
A base station for communicating with a User Equipment (UE) on a wireless network, the base station comprising:
- one or more processors configured to:
- generate a first Downlink Control Information (DCI) indicating a Grant-less Uplink (GUL) activation;
- and
- generate a second DCI being a GUL-DCI (G-DCI) transmission in a G-DCI format comprising one or more UE-specific parameters associated with one or more Uplink (UL) transmissions for an unlicensed spectrum of the wireless network and a plurality of redundant bits to cause the second DCI to be a pre-determined length, wherein the pre-determined length is determined based on a bandwidth of the unlicensed spectrum used for the G-DCI transmission,
- wherein a flag in the first DCI is to indicate that the first DCI is for the GUL activation, and
- wherein a flag in the second DCI is to indicate that the second DCI is a GUL DCI (G-DCI) comprising the one or more UE-specific parameters;
- and
- an interface configured to output the first DCI and the second DCI to a transceiver circuitry for transmission to the UE.
Dependencies are inferred from the claim text.