US 11,757,525 B2
Communication system and communication method
Kohei Suzaki, Tokyo (JP); Yusuke Asai, Tokyo (JP); and Hiroyuki Shiba, Tokyo (JP)
Assigned to Nippon Telegraph and Telephone Corporation, Tokyo (JP)
Appl. No. 17/260,610
Filed by Nippon Telegraph and Telephone Corporation, Tokyo (JP)
PCT Filed Jun. 27, 2019, PCT No. PCT/JP2019/025746
§ 371(c)(1), (2) Date Jan. 15, 2021,
PCT Pub. No. WO2020/021960, PCT Pub. Date Jan. 30, 2020.
Claims priority of application No. 2018-138820 (JP), filed on Jul. 24, 2018.
Prior Publication US 2021/0328658 A1, Oct. 21, 2021
Int. Cl. H04B 7/185 (2006.01); H04W 16/26 (2009.01); H04W 16/28 (2009.01); H04W 88/04 (2009.01)
CPC H04B 7/18508 (2013.01) [H04W 16/26 (2013.01); H04W 16/28 (2013.01); H04W 88/04 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A communication system comprising:
a mobile station configured to:
communicate with a wireless station;
move toward a predetermined destination on a first moving route;
sense an obstacle present on the first moving route toward the predetermined destination;
in response to sensing the obstacle present on the first moving route:
pause the movement toward the predetermined destination on the first moving route; and
transmit a notification to the wireless station requesting for deployment of a relay station, wherein the relay station is configured to establish communication between the mobile station and the wireless station;
in response to establishing communication to the relay station, move along a second moving route toward the predetermined destination while avoiding the obstacle; and
the relay station being configured to:
deploy to establish communications between the mobile station and the wireless station;
establish the communications between the mobile station and the wireless station; and
move to maintain a position where communication between the mobile station and the wireless station can be relayed according to movement of the mobile station along the second moving route.