Punctured Control Information for Flexible Full Duplex

The patent applies dynamics by making the downlink control information channel configuration adaptive rather than fixed. The base station dynamically determines whether to apply puncturing to the PDCCH based on uplink transmission requirements, allowing the system to switch between dedicated control information transmission and simultaneous uplink-downlink operation. This resolves the contradiction by enabling the system to adapt its channel allocation in real-time based on traffic demands.

The patent segments the downlink control information channel by introducing a puncturing mechanism that creates dedicated resource regions. When simultaneous uplink transmission is required, specific resource elements within the PDCCH are punctured (set to zero) to create interference-free zones for uplink signals. This segmentation allows control information to be transmitted in non-punctured regions while uplink signals occupy punctured regions, resolving the interference issue.

The patent extracts control information from the punctured regions and relocates it to non-punctured regions. When puncturing is applied to enable uplink transmission, the control information that would have been transmitted in the punctured resource elements is extracted and transmitted in alternative non-punctured resource elements within the same PDCCH. This ensures control information reliability is maintained while still enabling simultaneous uplink transmission in the punctured regions.

The patent employs feedback mechanisms where the base station monitors uplink transmission requirements and control information decoding success. Based on this feedback, the base station dynamically adjusts the puncturing pattern and control information allocation. If control information transmission reliability deteriorates due to puncturing, the system can adjust the puncturing configuration or increase redundancy, thus maintaining reliability while enabling uplink transmission.

The patent applies local quality by implementing puncturing only in specific resource elements where uplink transmission is required, rather than dynamically reallocating the entire channel. The base station identifies specific resource blocks or resource elements that need to be punctured for uplink transmission and applies the puncturing mechanism locally to those regions. This localized approach enables efficient simultaneous uplink-downlink operation while minimizing the complexity overhead compared to complete dynamic resource reallocation.

The patent uses preliminary action by pre-configuring puncturing patterns and control information alternative transmission paths. The base station can pre-determine puncturing patterns based on anticipated uplink traffic requirements and pre-arrange alternative resource elements for control information transmission. This preliminary preparation reduces the real-time computational complexity when dynamic resource allocation is needed, as the system has pre-established rules and alternative paths rather than having to compute optimal allocations in real-time.