US Patent No. 10,172,150

TTI SCHEDULING FOR IMPROVED RAMP UP OF TCP THROUGHPUT IN CELLULAR NETWORKS


Patent No. 10,172,150
Issue Date January 01, 2019
Title Tti Scheduling For Improved Ramp Up Of Tcp Throughput In Cellular Networks
Inventorship Farouk Belghoul, Campbell, CA (US)
Matthias Sauer, San Jose, CA (US)
Lydi Smaini, San Jose, CA (US)
Assignee Apple Inc., Cupertino, CA (US)

Claim of US Patent No. 10,172,150

1. A wireless user equipment device (UE), comprising:a radio, comprising one or more antennas configured for wireless communication on a cellular network;
a processing element operably coupled to the radio;
wherein the UE is configured to:
detect that a transmission control protocol (TCP) session has been initiated;
at least in part in response to detecting that the TCP session has been initiated, transmit a request to a base station for the base station to change transmission time interval (TTI) scheduling to a first shorter TTI duration;
in response to transmitting the request to the base station to change TTI scheduling to the first shorter TTI duration, transmit first uplink communications to the base station according to the first shorter TTI duration for a first period of time, wherein the UE is configured to increase a congestion window size after each acknowledgement of a first uplink communication received by the base station during the first period of time, wherein increasing the congestion window size enables a corresponding increase in uplink data throughput;
after the first period of time, transmit a request to the base station to change TTI scheduling to a second longer TTI duration; and
in response to transmitting the request to the base station to change TTI scheduling to the second longer TTI duration, transmit second uplink communications to the base station according to the second longer TTI duration.