公开(公告)号：US20240097740A1

公开(公告)日：2024-03-21

申请号：US17933239

申请日：2022-09-19

Applicant: Apple Inc.

Inventor： Sudhir K. Baghel ,  Seshu Tummala ,  Amol P. Bhatkar ,  Mehran T. Baghaei ,  Venkateswara Rao Manepalli ,  Nishant Pattanaik ,  Sudeep Bhattarai ,  Lohit Sarna ,  Jay P. Shah ,  Sebastian B. Seeber

IPC: H04B7/01 ,  H04W56/00 ,  H04W64/00

CPC classification number: H04B7/01 ,  H04W56/001 ,  H04W64/00

Abstract: Frequency spectrum of wireless transmission signals are allocated based on availability and regulatory requirements. To ensure transmission signals are within designated channel boundary, user equipment utilizes processing circuitry coupled to a transceiver to pre-compensate for estimated frequency shift at the time of transmissions. Certain guard bands are provided such that the actual transmission signals with the frequency pre-compensation are within the designated channel boundary. Additionally, or alternatively, the user equipment utilizes the processing circuitry to pre-compensate for estimated time shift based on a crystal drift using temperature measurement.

公开(公告)号：US20240223261A1

公开(公告)日：2024-07-04

申请号：US18602958

申请日：2024-03-12

Applicant: Apple Inc.

Inventor： Sudhir K. Baghel ,  Sudeep Bhattarai ,  Amol P. Bhatkar ,  Seshu Tummala ,  Venkateswara Rao Manepalli ,  Mehran T. Baghaei ,  Lohit Sarna ,  Nishant Pattanaik ,  Jay P. Shah

IPC: H04B7/08 ,  H04W72/044 ,  H04W72/0446

CPC classification number: H04B7/088 ,  H04W72/0446 ,  H04W72/046

Abstract: User equipment includes one or more antennas, a receiver coupled to the one or more antennas, and processing circuitry coupled to the receiver and configured to cause the user equipment to receive downlink signals at each communication cycle using a predetermined beam in a beam time slot. Based on processed downlink signals and other relevant information the user equipment may determine a desired beam for the next communication cycle. If the desired beam is the same as the predetermined beam, the user equipment may continue using the predetermined beam at the next communication cycle. If the desired beam is different from the predetermined beam, the user equipment may switch to the desired beam at the next communication cycle. In this way, the user equipment may continue tracking a desired beam to maintain reliable data communications with a communication node.