Apple inc. (20240107388). TIMING ADVANCE IN LAYER 1/LAYER 2 INTERCELL MOBILITY simplified abstract

TIMING ADVANCE IN LAYER 1/LAYER 2 INTERCELL MOBILITY

Organization Name

apple inc.

Inventor(s)

Qiming Li of Beijing (CN)

Yushu Zhang of Beijing (CN)

Chunhai Yao of Beijing (CN)

Fangli Xu of Beijing (CN)

Yuqin Chen of Beijing (CN)

Dawei Zhang of Saratoga CA (US)

Jie Cui of San Jose CA (US)

Manasa Raghavan of Sunnyvale CA (US)

Xiang Chen of Beijing (CN)

Huaning Niu of San Jose CA (US)

Yang Tang of San Jose CA (US)

TIMING ADVANCE IN LAYER 1/LAYER 2 INTERCELL MOBILITY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240107388 titled 'TIMING ADVANCE IN LAYER 1/LAYER 2 INTERCELL MOBILITY

Simplified Explanation

The patent application describes apparatuses, systems, and methods for determining timing advance in L1/L2 inter-cell mobility. A user equipment (UE) is equipped with at least one antenna, at least one radio, and a processor. The processor receives a time advance (TA) indicator and a handover command from a source base station in a source coverage. The TA indicator includes information for determining a TA used for an uplink transmission with a target base station in a target coverage. The handover command can be a layer 1 or layer 2 handover command, and the source and target coverages are identified by different physical cell identifiers. In response to the handover command, the processor determines the TA used for the uplink transmission with the target base station based on the information provided.

• User equipment (UE) includes at least one antenna, at least one radio, and a processor.
• Processor receives a time advance (TA) indicator and a handover command from a source base station.
• TA indicator helps determine TA for uplink transmission with a target base station in a different coverage area.
• Handover command can be layer 1 or layer 2.
• Processor calculates TA for uplink transmission with the target base station based on the received information.

Potential Applications

This technology can be applied in cellular networks for seamless handovers between different coverage areas.

Problems Solved

1. Efficient determination of timing advance for uplink transmissions during inter-cell mobility. 2. Smooth handover process between source and target base stations.

Benefits

1. Improved network performance during handovers. 2. Enhanced user experience with uninterrupted connectivity. 3. Optimal utilization of resources in cellular networks.

Potential Commercial Applications

Optimized handover solutions for telecom operators to enhance network reliability and customer satisfaction.

Possible Prior Art

One possible prior art could be methods for handover procedures in cellular networks, but specific techniques for determining timing advance during inter-cell mobility may not have been addressed.

Unanswered Questions

How does this technology impact battery life in user equipment?

The article does not mention the potential impact of this technology on the battery life of user equipment. It would be interesting to understand if the additional processing required for determining timing advance affects power consumption.

Are there any limitations to the distance between source and target base stations for this technology to work effectively?

The article does not specify any limitations on the distance between source and target base stations for the technology to function optimally. It would be important to know if there are any constraints in terms of coverage area for seamless handovers.

Original Abstract Submitted

apparatuses, systems, and methods for determining timing advance in l1/l2 inter-cell mobility. a user equipment (ue) comprises at least one antenna, at least one radio coupled to the at least one antenna, and a processor coupled to the at least one radio. the processor is configured to receive a time advance (ta) indicator together with a handover command from a source base station in a source coverage, wherein the ta indicator comprises information for determining a ta used for an uplink transmission with a target base station in a target coverage, the handover command is a layer 1 handover command or a layer 2 handover command, and the source coverage and the target coverage are identified by different physical cell identifiers; and in response to the handover command, determine the ta used for the uplink transmission with the target base station based on the information.