Patent ID: 9629171
Date: 2017-04-18
CPC Classifications: H04B,H04W

Claim:
1. A method for use in a base station (BS) for handover of a communication link from a primary beam, the method comprising: establishing a communication link with a wireless transmit/receive unit (WTRU), wherein the communication link uses a primary beam; transmitting a request to the WTRU to perform at least one directional signal strength measurement on at least one signal received by the WTRU; transmitting a request to the WTRU to provide location data associated with the WTRU; receiving at least one performed directional signal strength measurement from the WTRU; receiving location data associated with the WTRU; generating a directional radio environment map (DREM) based on the at least one received directional signal strength measurement from the WTRU and the received location data associated with the WTRU; and performing a handover of the communication link from the primary beam to a secondary beam, on a condition that the primary beam is disrupted, wherein the secondary beam is selected based on the generated DREM.