US 11,871,215 B2
Uplink-centric handover in a wireless multi-hop network
Naeem Akl, Somerville, NJ (US); Navid Abedini, Somerset, NJ (US); Junyi Li, Chester, NJ (US); Jianghong Luo, Skillman, NJ (US); Luca Blessent, Whitehouse Station, NJ (US); Karl Georg Hampel, Hoboken, NJ (US); and Tao Luo, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 14, 2020, as Appl. No. 17/020,044.
Claims priority of provisional application 62/902,190, filed on Sep. 18, 2019.
Prior Publication US 2021/0084545 A1, Mar. 18, 2021
Int. Cl. H04W 36/00 (2009.01); H04W 74/08 (2009.01); H04L 5/00 (2006.01); H04L 41/0803 (2022.01)
CPC H04W 36/0058 (2018.08) [H04L 5/0048 (2013.01); H04L 41/0803 (2013.01); H04W 74/0833 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a child node in a wireless network, comprising:
receiving, from a control node and based at least in part on transmitting information of the child node to the control node, a transmission configuration indicating one or more parameters for transmission of an uplink sounding reference signal (SRS) for a handover procedure from a serving node to one of a plurality of neighbor nodes,
wherein the child node, the control node, the serving node, and the plurality of neighbor nodes are each in the wireless network and separate from each other, and
wherein the one or more parameters is for at least one of:
aligning a transmission time of the uplink SRS with an active time period of one or more neighbor nodes of the plurality of neighbor nodes, or
aligning a transmit beam direction of the uplink SRS with a receive beam direction of the one or more neighbor nodes;
transmitting the uplink SRS to each of the plurality of neighbor nodes according to the transmission configuration; and
receiving a handover command, indicating a neighbor node of the plurality of neighbor nodes to which the child node is to be handed over, based at least in part on transmitting the uplink SRS.