18318275. APPARATUS AND METHOD FOR COMMUNICATING TWO STAGE DCI simplified abstract (Huawei Technologies Co., Ltd.)
APPARATUS AND METHOD FOR COMMUNICATING TWO STAGE DCI
Organization Name
Inventor(s)
APPARATUS AND METHOD FOR COMMUNICATING TWO STAGE DCI - A simplified explanation of the abstract
This abstract first appeared for US patent application 18318275 titled 'APPARATUS AND METHOD FOR COMMUNICATING TWO STAGE DCI
Simplified Explanation
A two-stage DCI framework is proposed in this patent application. The first stage DCI (Downlink Control Information) is transmitted through PDCCH (Physical Downlink Control Channel), while the second stage DCI is transmitted through PDSCH (Physical Downlink Shared Channel).
- The first stage DCI is blindly decoded, meaning it is decoded without prior knowledge of its content.
- The second stage DCI is indicated by the first stage DCI, eliminating the need for blind decoding.
- The size of the second stage DCI can be highly flexible, allowing it to convey scheduling information for one or multiple carriers, as well as support multi-transmission for a single carrier.
- The first stage DCI is designed to be compact in size, enhancing its reliability.
Potential Applications
This technology can find applications in various wireless communication systems, particularly in the field of cellular networks. It can be utilized in 4G LTE (Long-Term Evolution) and 5G NR (New Radio) networks, as well as future generations of wireless networks.
Problems Solved
The proposed two-stage DCI framework addresses several challenges in wireless communication systems:
- Blind decoding of the first stage DCI can be error-prone and inefficient.
- The existing DCI formats may not provide sufficient flexibility to accommodate various scheduling scenarios.
- Reliability of the DCI transmission can be compromised due to its size and complexity.
Benefits
The innovation described in this patent application offers several benefits:
- Improved reliability: The compact size of the first stage DCI enhances its decoding accuracy and reduces errors.
- Flexibility: The second stage DCI can have a variable size, allowing it to convey diverse scheduling information for different carriers and transmission scenarios.
- Efficiency: Eliminating the need for blind decoding of the second stage DCI improves overall system efficiency and reduces processing overhead.
Original Abstract Submitted
A two-stage DCI framework is provided in which the first stage DCI is carried by PDCCH, second stage DCI is carried by PDSCH. The first stage DCI is blind decoded. The second stage DCI is indicated by the first stage DCI and therefor no blind decoding is necessary. The size of the second stage DCI can be very flexible, can indicate scheduling information for one carrier, multiple carriers, multi transmission for one carrier. The first stage DCI can be compact in size to enhance reliability.
