Qualcomm incorporated (20240137972). PHYSICAL RANDOM ACCESS CHANNEL FOR UPLINK-SUBBAND IN SUBBAND FULL DUPLEX simplified abstract

PHYSICAL RANDOM ACCESS CHANNEL FOR UPLINK-SUBBAND IN SUBBAND FULL DUPLEX

Organization Name

qualcomm incorporated

Inventor(s)

Muhammad Sayed Khairy Abdelghaffar of San Jose CA (US)

Hung Dinh Ly of San Diego CA (US)

Gokul Sridharan of Sunnyvale CA (US)

Ahmed Attia Abotabl of San Diego CA (US)

Seyedkianoush Hosseini of San Diego CA (US)

Abdelrahman Mohamed Ahmed Mohamed Ibrahim of San Diego CA (US)

PHYSICAL RANDOM ACCESS CHANNEL FOR UPLINK-SUBBAND IN SUBBAND FULL DUPLEX - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240137972 titled 'PHYSICAL RANDOM ACCESS CHANNEL FOR UPLINK-SUBBAND IN SUBBAND FULL DUPLEX

Simplified Explanation

The patent application describes methods, systems, and devices for wireless communications, specifically focusing on subband full duplex (SBFD) slots and random access channel (RACH) configurations for SBFD slots.

• User equipment (UE) receives control signaling indicating SBFD slot configuration and RACH configuration for SBFD slots.
• UE transmits RACH messages in an uplink subband of an SBFD slot according to the RACH configuration.
• RACH configuration allows UE to repeat RACH messages or transmit multi-slot RACH messages across SBFD slots and uplink slots.
• Synchronization signal blocks (SSBs) are mapped to RACH occasions in the uplink subband of SBFD slots, potentially across multiple consecutive SBFD slots.

Potential Applications

This technology could be applied in:

• 5G and future wireless communication systems
• IoT devices requiring efficient and reliable wireless connectivity

Problems Solved

• Efficient utilization of resources in wireless networks
• Improved reliability and performance of random access procedures

Benefits

• Enhanced spectrum efficiency
• Increased reliability in random access procedures
• Better overall performance in wireless communication systems

Potential Commercial Applications

• Telecommunication companies
• IoT device manufacturers

Possible Prior Art

There may be prior art related to:

• Dynamic spectrum sharing in wireless networks
• Multi-slot random access procedures in cellular networks

Unanswered Questions

How does this technology impact battery life in user equipment?

The patent application does not provide information on the potential impact of this technology on the battery life of user equipment. It would be important to understand if the increased transmission activity required for the described RACH configurations has any significant effect on battery consumption.

Are there any limitations to the distance over which these RACH messages can be transmitted?

The patent application does not address the potential limitations on the distance over which RACH messages can be effectively transmitted in the described SBFD slot configurations. Understanding the range of these transmissions could be crucial for practical implementation and network planning.

Original Abstract Submitted

methods, systems, and devices for wireless communications are described. a user equipment (ue) may receive control signaling that indicates a configuration for subband full duplex (sbfd) slots and a random access channel (rach) configuration for sbfd slots. the ue may transmit at least one instance of a rach message in an uplink subband of an sbfd slot in accordance with the rach configuration. the rach configuration may enable a ue to repeat a rach message or transmit a multi-slot rach message across an sbfd slot and an uplink slot. the rach configuration may map synchronization signal blocks (ssb)s to rach occasions in the uplink subband of the sbfd slot. in some examples, the ssbs may be mapped across multiple (e.g., consecutive) sbfd slots. in some cases, the rach configuration may enable a ue to repeat a rach message or transmit a multi-slot rach message across multiple sbfd slots.