US Patent No. 10,143,002

SYSTEM AND METHOD TO FACILITATE CENTRALIZED RADIO RESOURCE MANAGEMENT IN A SPLIT RADIO ACCESS NETWORK ENVIRONMENT


Patent No. 10,143,002
Issue Date November 27, 2018
Title System And Method To Facilitate Centralized Radio Resource Management In A Split Radio Access Network Environment
Inventorship Ritesh K. Madan, Berkeley, CA (US)
Rohit Umesh Nabar, Sunnyvale, CA (US)
Assignee Cisco Technology, Inc., San Jose, CA (US)

Claim of US Patent No. 10,143,002

1. A method comprising:generating feedback information at a first remote access point (AP), wherein the feedback information is associated with one or more user equipment served by the first remote AP;
transmitting the feedback information to a central controller, wherein the central controller dynamically determines constraint values for the first remote AP for a first horizon of time comprising a plurality of transmission time intervals (TTIs) using an objective function to at least one of: (i) improve meeting delay targets for delay sensitive QoS bearers and (ii) improve fairness of frequency resource sharing across users and bearers, wherein the constraint values are based, at least in part, on feedback information relating to a remote AP other than the first remote AP, and wherein the constraint values for the first remote AP are based on the feedback information received from the first remote AP and feedback information received from one or more other remote APs that neighbor the first remote AP;
scheduling resource blocks (RBs), at the first remote AP, for the one or more user equipment served by the first remote AP for the first horizon of time based, at least in part, on the constraint values received from the central controller;
determining a second horizon of time comprising a plurality of TTIs; and
scheduling RBs for the one or more user equipment served by the first remote AP for the second horizon of time based, at least in part, on the constraint values received from the central controller.