18258782. NEGATIVE ACKNOWLEDGMENT TRANSMISSIONS DURING PHYSICAL LAYER ISSUES simplified abstract (QUALCOMM Incorporated)
Contents
NEGATIVE ACKNOWLEDGMENT TRANSMISSIONS DURING PHYSICAL LAYER ISSUES
Organization Name
Inventor(s)
Sitaramanjaneyulu Kanamarlapudi of San Diego CA (US)
Hobin Kim of San Diego CA (US)
Leena Zacharias of San Jose CA (US)
NEGATIVE ACKNOWLEDGMENT TRANSMISSIONS DURING PHYSICAL LAYER ISSUES - A simplified explanation of the abstract
This abstract first appeared for US patent application 18258782 titled 'NEGATIVE ACKNOWLEDGMENT TRANSMISSIONS DURING PHYSICAL LAYER ISSUES
Simplified Explanation
Methods, systems, and devices for wireless communications are described in this patent application. The abstract explains that a user equipment (UE) can determine when at least one packet of a set of packets for a downlink message is unsuccessfully received at the radio link control (RLC) layer of the UE. This failure is due to a specific situation or a set of specific situations. Instead of waiting for a timer to expire, the UE may transmit a NACK message based on the missing packet(s) on an as-needed basis. This is referred to as a fast NACK mechanism.
The patent/innovation can be summarized as follows:
- The invention provides a method for a UE to quickly transmit a NACK message when it fails to receive at least one packet of a set of packets for a downlink message at the RLC layer.
- The UE determines the need for a NACK message based on specific situations, such as missing packets after a measurement gap, missing packets due to wake-up latencies in a discontinuous reception mode, missing packets caused by interference from neighboring cells' reference signals, or missing packets due to the UE not decoding retransmissions with the same redundancy version (RV) of a downlink message.
- The fast NACK mechanism allows the UE to transmit the NACK message immediately, rather than waiting for a timer to expire.
Potential applications of this technology:
- This technology can be applied in wireless communication systems, such as cellular networks, to improve the reliability and efficiency of data transmission.
- It can be used in various devices that rely on wireless communication, such as smartphones, tablets, IoT devices, and other wireless-enabled devices.
Problems solved by this technology:
- The fast NACK mechanism solves the problem of delayed NACK transmission in wireless communication systems, where waiting for a timer to expire may result in increased latency and reduced efficiency.
- It addresses the issue of missing packets in specific situations, ensuring that the UE can quickly request retransmission of the missing data.
Benefits of this technology:
- By allowing the UE to transmit NACK messages immediately, the technology reduces latency and improves the overall efficiency of data transmission.
- It enhances the reliability of wireless communication by promptly requesting retransmission of missing packets.
- The fast NACK mechanism improves the user experience by minimizing data loss and ensuring a more seamless communication experience.
Original Abstract Submitted
Methods, systems, and devices for wireless communications are described. A user equipment (UE) determine that at least one packet of a set of packets for a downlink message is unsuccessfully received at a radio link control (RLC) layer of the UE due to a specific situation of a set of specific situations and may transmit the NACK message based on the missing packet (s) on an as needed basis rather than waiting for a timer to expire (e.g., a fast NACK mechanism). In some examples, the specific situations may include the UE missing packets after a measurement gap, missing packets based on wake up latencies for a discontinuous reception mode of the UE, missing packets due to interference from reference signals transmitted by neighboring cells, missing packets due to the UE not decoding retransmissions that have a same redundancy version (RV) of a downlink message, or a combination thereof.
