Method and apparatus for dynamic adjustment of uplink transmission time

摘要

Systems and methods for dynamically adjusting the transmission time interval (TTI) for a communications system are presented. The described aspects provide for dynamically adjusting the TTI in a communication session between a base station or nodeB and a wireless device or user equipment between a shorter TTI, which can provide increased data throughput and lower power consumption, and a longer TTI, which can provide more rugged communication link connections. By dynamically adjusting the TTI, the communications link can be optimized for the given communication channel conditions. Determinations, based on indicia related to the communications system conditions, can be employed in dynamic TTI adjustment. These determinations can be formed centrally at the Radio Network Controller (RNC), at the RNC supplemented with user equipment (UE) available information, or formed in a distributed manner between the RNC and UE across a communications system.

主权项

1. A method for dynamically adjusting a transmission time interval in a communications system, comprising:
assigning a first transmission time interval having a first window length to at least one user equipment based on one or more wireless communication link conditions; receiving a first indicator related to at least one of the one or more wireless communication link conditions; receiving a request from the at least one user equipment to change from the first transmission time interval to a second transmission time interval based on a second indicator related to at least one of the one or more wireless communication link conditions; determining that the first indicator has exceeded a threshold and has remained over the threshold for a period during at least one established communications event; and instructing the at least one user equipment to change from the first transmission time interval having the first window length to the second transmission time interval having a second window length based on the request and the determination that the first indicator has exceeded the threshold and has remained over the threshold for the period.