US20260282105
2026-09-17
Electricity
H04W74/0833
The patent describes a method for initial access in wireless communication systems using multi-beam technology. User equipment (UE) receives a synchronization signal block (SSB) from a base station (BS) and acquires a master information block (MIB) based on the SSB. The UE determines if the SSB is received via multiple beams and selects one of these beams for communication. The selected beam is then used to transmit a random access channel (RACH) to the BS.
This technology pertains to wireless communication systems, specifically focusing on methods and devices for initial access using multi-beam configurations. It addresses the growing demand for enhanced mobile broadband (eMBB) and massive machine-type communications (mMTC), which require reliable and efficient connection methods to support an increasing number of devices.
The method aims to solve the challenge of determining UE presence in a multi-beam region and selecting the optimal beam for communication. This approach is crucial for improving connection reliability and efficiency in environments where multiple beams are used to enhance coverage and capacity.
The solution involves the UE receiving an SSB and acquiring an MIB to determine if the SSB is received through multi-beams. The UE selects the optimal beam by measuring signal quality, such as signal-to-noise ratio (SNR) or reference signal received power (RSRP). The selected beam is then used for transmitting the RACH to the BS, ensuring efficient initial access.
The method includes details on how the UE processes information from the MIB to identify multi-beam reception. It involves acquiring resource block length information and receiving downlink control information (DCI) to determine beam reception. The UE uses this data to select the best beam based on signal measurements. The base station supports this process by transmitting relevant information blocks and receiving the RACH through the chosen beam.