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US 2018/0295577 A1Published application
System and Method for Uplink Timing Synchronization in Conjunction with Discontinuous Reception
AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.
InventorsJames Earl Womack, Yi Yu, Zhijun Cai
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Abstract
A system and method are disclosed for providing uplink timing synchronization during DRX operation in a wireless communication system.
Claims17
(canceled)
A method in a network access equipment, comprising:
- transmitting a timing alignment update command for adjusting an uplink timing alignment of a user device;
- resetting a timing alignment timer in response to transmitting the timing alignment update command;
- configuring a discontinuous reception (DRX) mode for the user device;
- configuring a sounding reference signal (SRS) resource for the user device;
- receiving an SRS:
- (1) during DRX active time, or (2) irrespective of the DRX active time when the SRS resource is used;
- and
- releasing a resource configuration for the user device to transmit the SRS upon expiration of the time alignment timer.
5 more elements
A network access equipment for a wireless telecommunications system, comprising:
- a transmitter configured to transmit a timing alignment update command for adjusting an uplink timing alignment of a user device;
- a receiver;
- and
- a processor, the processor configured to perform operations comprising:
- resetting a timing alignment timer in response to transmitting the timing alignment update command;
- configuring a discontinuous reception (DRX) mode for the user device;
- configuring a sounding reference signal (SRS) mode for the user device;
- controlling the receiver to receive an SRS:
- (1) during DRX active time, or (2) irrespective of the DRX active time when the SRS resource is used;
- and
- releasing a resource configuration for the user device to transmit the SRS upon expiration of the time alignment timer.
8 more elements
Dependencies are inferred from the claim text.