US20250261239
2025-08-14
Electricity
H04W74/0833
The patent application outlines a method for enhancing initial access in wireless communication systems through multi-transmission point (TRP) operations. This involves multiple transmission points connected to a clustering entity, which coordinates the reception and processing of synchronization signals and random access signals from a wireless device. The system measures the signal qualities, associates them with specific signal identifications, and communicates this data to form efficient TRP clusters, optimizing communication with the wireless device.
Modern cellular networks often utilize multi-TRP transmission to improve communication efficiency and robustness. This involves forming clusters of TRPs to communicate with devices, which can be static or dynamic. Static clusters are less efficient as they do not adapt to changing radio conditions, whereas dynamic clusters adjust based on current conditions but introduce delays. The invention aims to reduce these delays by forming clusters during the initial access stage, enhancing performance for short-duration communications.
The method involves receiving synchronization signals from TRPs and sending back random access signals identified uniquely. Signal qualities are measured at TRPs and communicated to a clustering entity, which constructs a dataset to support TRP cluster formation. This dataset facilitates faster initial cluster formation, improving communication efficiency right from the initial access phase. The approach is particularly beneficial for 3GPP systems like 5G networks, supporting applications with intermittent data transmissions.
Random access signal identification might include identifiers like RA-RNTI or TC-RNTI to minimize signaling load and energy consumption. Signal quality measurements can involve various metrics such as signal strength or channel delay. These measurements help create a comprehensive dataset that maps signal quality to wireless device identity, enabling efficient cluster formation.
The method may include transmitting an RRC setup request from the wireless device for robust participation in the procedure. The clustering entity constructs datasets that map signal qualities to device identities efficiently. The system may also broadcast a multi-TRP transmission indication to inform devices about the availability of this operation mode. These features enhance the overall performance and adaptability of wireless communication systems.