公开(公告)号：US20220141075A1

公开(公告)日：2022-05-05

申请号：US17435730

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Debdeep Chatterjee ,  Yongjun Kwak ,  Daewon Lee ,  Avik Sengupta

IPC: H04L27/26 ,  H04W56/00 ,  H04L1/00

Abstract: Systems, methods, and circuitries are provided for maximizing use of discovery reference (DRS) resources for remaining minimum system information (RMSI) allocation. An example method includes configuring Type 0 physical downlink control channel (PDCCH) CORESET monitoring to include monitoring in either a first slot or a first slot and a second slot; generating a synchronization signal block (SSB) encoding the configured PDCCH CORESET monitoring; and transmitting the SSB to a user equipment (UE) by way of a discovery reference signal (DRS).

公开(公告)号：US10980068B2

公开(公告)日：2021-04-13

申请号：US16476180

申请日：2018-01-05

Applicant: Apple Inc.

Inventor： Seau S. Lim ,  Candy Yiu ,  Marta Martinez Tarradell ,  Sudeep K. Palat ,  Daewon Lee

IPC: H04W74/08 ,  H04W76/19 ,  H04W76/27 ,  H04W68/02

Abstract: Embodiments are generally directed to establishment of random access channel communications. An embodiment of an apparatus for a user equipment (UE) to perform a random access (RACH) procedure, the apparatus including one or more baseband processors to generate a first Radio Resource Control (RRC) RACH procedure message to transmit to an Evolved Node B (eNB) or Next Generation Node B (gNB), the first RRC RACH procedure message including a UE identification (ID) and a request message with scheduled transmission content data, the UE ID being a common UE ID for RACH procedures between the UE and the eNB or gNB, and process a second RRC RACH procedure message received from the eNB or gNB, the second RRC RACH procedure message including contention resolution data for a random access preamble and the request message; and a memory to store data for the RACH procedure.