US 12,483,291 B2
Dynamic reconfiguration of uplink transmission in a TDD wireless communication system
Anthony Edet Ekpenyong, Houston, TX (US); and Ralf Matthias Bendlin, Plano, TX (US)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Dec. 17, 2018, as Appl. No. 16/222,814.
Application 16/222,814 is a continuation of application No. 15/621,905, filed on Jun. 13, 2017, granted, now 10,158,393.
Application 15/621,905 is a continuation of application No. 14/268,697, filed on May 2, 2014, granted, now 9,680,522, issued on May 24, 2017.
Claims priority of provisional application 61/821,415, filed on May 9, 2013.
Prior Publication US 2019/0123779 A1, Apr. 25, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 1/56 (2006.01); H04L 5/00 (2006.01); H04L 5/14 (2006.01); H04W 72/0446 (2023.01)
CPC H04B 1/56 (2013.01) [H04W 72/0446 (2013.01); H04L 5/0073 (2013.01); H04L 5/0091 (2013.01); H04L 5/1469 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, at a user equipment (UE), a first time division duplex (TDD) uplink (UL)/downlink (DL) configuration via a system information block type 1 (SIB1);
receiving, at the UE, a periodic sounding reference signal (SRS) configuration that includes an SRS periodicity parameter and an SRS offset parameter;
transmitting, by the UE, a notification indicating that the UE has adaptive TDD capabilities;
receiving, at the UE, a reconfiguration signal via a downlink control information (DCI) format, the reconfiguration signal signaling a second TDD UL/DL configuration;
activating the second TDD UL/DL configuration following a change notification window, wherein any reconfiguration signal that is detected in the change notification window indicates that the second TDD UL/DL configuration shall take effect at a next change notification window boundary; and
not transmitting, by the UE, an SRS in a subframe when the UE is configured to transmit the SRS in the subframe according to the periodic SRS configuration and the second TDD UL/DL configuration indicates that the subframe is a downlink subframe.