18450565. LBT Parameters for SRS Transmission simplified abstract (Telefonaktiebolaget LM Ericsson (publ))
Contents
LBT Parameters for SRS Transmission
Organization Name
Telefonaktiebolaget LM Ericsson (publ)
Inventor(s)
Sorour Falahati of STOCKHOLM (SE)
Havish Koorapaty of SARATOGA CA (US)
LBT Parameters for SRS Transmission - A simplified explanation of the abstract
This abstract first appeared for US patent application 18450565 titled 'LBT Parameters for SRS Transmission
Simplified Explanation
The patent application describes a method for managing the size of a contention window in a user equipment (UE) for unlicensed spectrum transmissions. The method involves performing a listen-before-talk (LBT) procedure using a specific contention window size and priority class for an acknowledged uplink transmission. It also includes transmitting an un-acknowledged uplink transmission and receiving an acknowledgement for the first transmission. Based on the received acknowledgement, both the contention window size for the acknowledged transmission and a second contention window size are modified. A second LBT procedure is then performed using the modified contention window size and a different priority class for an un-acknowledged uplink transmission.
- The method involves managing the contention window size in a UE for unlicensed spectrum transmissions.
- It includes performing a first LBT procedure for an acknowledged uplink transmission.
- The method also involves transmitting an un-acknowledged uplink transmission and receiving an acknowledgement for the first transmission.
- Based on the received acknowledgement, both the contention window size for the acknowledged transmission and a second contention window size are modified.
- A second LBT procedure is performed using the modified contention window size and a different priority class for an un-acknowledged uplink transmission.
Potential Applications
- This method can be applied in various wireless communication systems that utilize unlicensed spectrum, such as Wi-Fi networks.
- It can be used in devices like smartphones, tablets, laptops, and IoT devices that rely on unlicensed spectrum for uplink transmissions.
Problems Solved
- The method addresses the issue of contention in unlicensed spectrum by managing the contention window size.
- It helps in optimizing the transmission performance by adjusting the contention window size based on the acknowledgement received for previous transmissions.
Benefits
- By dynamically modifying the contention window size based on acknowledgements, the method improves the efficiency and reliability of uplink transmissions in unlicensed spectrum.
- It allows for better management of contention and reduces the chances of collisions and interference in the spectrum.
- The method helps in maximizing the utilization of unlicensed spectrum resources and improving overall network performance.
Original Abstract Submitted
According to some embodiments, a method for use in a user equipment (UE) of managing a listen-before-talk (LBT) contention window size comprises performing a first LBT procedure using a first contention window size and priority class for a first uplink transmission in unlicensed spectrum. The first uplink transmission comprises an acknowledged transmission. The method further comprises transmitting a second uplink transmission. The second uplink transmission comprises an un-acknowledged transmission. The method further comprises receiving an acknowledgement for the first uplink transmission, and modifying both the first contention window size and a second contention window based on the received acknowledgement. The method further comprises performing a second LBT procedure using the second contention window size and a second priority class for a third uplink transmission in unlicensed spectrum. The third uplink transmission comprises an un-acknowledged transmission.
