Uplink transmissions without timing synchronization in wireless communication
AssigneeQUALCOMM Incorporated
InventorsSony AKKARAKARAN, Muhammad Nazmul ISLAM, Tao LUO
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Abstract
Aspects of the present disclosure provide methods, apparatuses, and embodiments for transmitting time critical uplink (UL) control information (e.g., beam failure indication, buffer status report, and scheduling request) without first obtaining UL timing synchronization with a network. Therefore, UL communication latency may be reduced by removing the signaling overhead involved in performing a full random access procedure to obtain UL synchronization prior to UL transmission.
Claims30
A method of wireless communication operable at a user equipment (UE), comprising:
- receiving, from a base station, a resource configuration that allocates resources for sync-less uplink (UL) transmission;
- transmitting, to the base station, uplink control information (UCI) utilizing the resources regardless of UL timing synchronization between the base station and the UE;
- receiving a base station response corresponding to the UCI from the base station;
- and
- transmitting UL data to the base station based on the base station response.
A method of wireless communication operable at a base station, comprising:
- transmitting, to a user equipment (UE), a resource configuration that allocates resources for sync-less uplink (UL) transmission;
- receiving, from the UE, uplink control information (UCI) utilizing the resources regardless of UL timing synchronization between the UE and the base station;
- transmitting a base station response corresponding to the UCI to the UE;
- and
- receiving UL data from the UE based on the base station response.
A base station configured for wireless communication, comprising:
- a communication interface configured to communicate with a user equipment (UE);
- a memory;
- and
- a processor operatively coupled with the communication interface and the memory,
- wherein the processor and the memory are configured to:
- transmit, to the UE, a resource configuration that allocates resources for sync-less uplink (UL) transmission;
- receive, from the UE, uplink control information (UCI) utilizing the resources regardless of UL timing synchronization between the UE and the base station;
- transmit a base station response corresponding to the UCI to the UE;
- and
- receive UL data from the UE based on the base station response.
A user equipment (UE) configured for wireless communication, comprising:
- a communication interface configured to communicate with a base station;
- a memory;
- and
- a processor operatively coupled with the communication interface and the memory,
- wherein the processor and the memory are configured to:
- receive, from a base station, a resource configuration that allocates resources for sync-less uplink (UL) transmission;
- transmit, to the base station, uplink control information (UCI) utilizing the resources regardless of UL timing synchronization between the base station and the UE;
- receive a base station response corresponding to the UCI from the base station;
- and
- transmit UL data to the base station based on the base station response.
Dependencies are inferred from the claim text.