US 12,284,683 B2
System and methods for adaptive random access response optimization
Sandeep Mani Tripathi, Tokyo (JP)
Assigned to RAKUTEN MOBILE, INC., Tokyo (JP)
Appl. No. 17/796,192
Filed by RAKUTEN MOBILE, INC., Tokyo (JP)
PCT Filed Jun. 30, 2022, PCT No. PCT/US2022/035648
§ 371(c)(1), (2) Date Jul. 28, 2022,
PCT Pub. No. WO2024/005815, PCT Pub. Date Jan. 4, 2024.
Prior Publication US 2024/0188138 A1, Jun. 6, 2024
Int. Cl. H04W 74/0833 (2024.01); H04L 47/38 (2022.01)
CPC H04W 74/0833 (2013.01) [H04L 47/38 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for adaptively optimizing a random access response (RAR) message by a radio access network (RAN) node, the method comprising:
determining a first number of connection attempts over a first time duration that are received from one or more user equipment (UE);
determining a success rate for the first number of connection attempts;
updating one or more parameters to adjust a code rate used for generating communication messages to the one or more UEs, from a first code rate to a second code rate, based at least in part on the success rate;
generating the RAR message using the second code rate, in response to receiving an initial access connection request message from a first UE among the one or more UEs; and
sending the RAR message based at least in part on the second code rate to the first UE,
wherein the updating one or more parameters to adjust the code rate used for generating the communication messages to the one or more UE, from the first code rate to the second code rate, based at least in part on the success rate, comprises:
determining the second code rate to be less than the first code rate, in response to determining that the first number of connection attempts is greater than a first connection attempt threshold and that the success rate is less than a first success rate threshold, and updating the one or more parameters to decrease the code rate in response to determining the first code rate is greater than a minimum code rate threshold; or
determining the second code rate to be greater than the first code rate, in response to determining that the first number of connection attempts is greater than a second connection attempt threshold and the success rate is greater than a second success rate threshold, and updating the one or more parameters to increase the code rate in response to determining the first code rate is less than a maximum code rate threshold.