公开(公告)号：US20210392709A1

公开(公告)日：2021-12-16

申请号：US16902291

申请日：2020-06-16

Applicant: BluWireless Technology Limited

Inventor： Peter Jonathon LEGG ,  James Simon PASCOE

IPC: H04W76/15 ,  H04W4/44

Abstract: A communication system supports communication between an end node (101) of a vehicle (103) and a remote correspondent node (105) via a fixed network (107) which comprises a plurality of wireless access points (109) with a directional antenna arrangement for mm wave radio communication using directional beams. A vehicle (103) comprises wireless modems (111, 113, 701, 703) employing electronically steerable beamforming directional antennas for establishing mm wave radio communication links to the access points (109). At least one first access point (109) is arranged to transmit multipath environment data for an area supported by the access point to the wireless modems (111, 113, 701, 703). A controller (1101) of the vehicle is arranged to set a diversity property for transmissions of data from the wireless modems to the wireless access points in response to the multipath environment data.

公开(公告)号：US20220132401A1

公开(公告)日：2022-04-28

申请号：US17078511

申请日：2020-10-23

Applicant: BluWireless Technology Limited

Inventor： Peter Jonathon LEGG ,  James Simon PASCOE ,  Simon DAVIES

IPC: H04W48/16 ,  H04W88/08 ,  H04W72/04 ,  H04B7/08

Abstract: A communication system comprises a fixed network comprising access points for mm wave radio communication using directional beams. A wireless modem of a vehicle comprises a first search circuit searching for a beacon transmission in a first frequency channel. A first data receiver extracts data from a detected beacon signal including: an indication of a first access point transmitting the beacon signal; a first load value indicative of a loading of the first access point; and an indication of a second access point having overlapping coverage with the first access point. Another receiver extracts data from a second beacon signal transmitted by the second access point in a second frequency channel including a second load value indicative of a loading of the second access point. A controller selects a target access point dependent on the first and second load values, and initializes a link setup with the target access point.