Volte call setup
AssigneeQUALCOMM Incorporated
InventorsMutaz Zuhier Afif Shukair, Mouaffac Ambriss, Rao Sanyasi Yenamandra
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Abstract
Methods, systems, and devices are described for call setup (e.g., VoLTE) for a wireless communication device. During a call setup procedure, the device may implement a “keep alive” mechanism to maintain an RRC connection established as part of the call setup procedure. The “keep alive” mechanism may be configured to insert some padding traffic (e.g., dummy packets) to maintain the RRC connection, for example, by restarting the network RRC connection release timer to prevent its expiration and release of the RRC connection during call setup.
Claims30
A method for voice over LTE (VoLTE) call setup for a first wireless communication device, comprising:
- initiating a VoLTE call setup procedure to establish voice communications between the first wireless communication device and a second wireless communication device;
- establishing a radio resource control (RRC) connection as part of the VoLTE call setup procedure;
- setting a time period value of a timer based at least in part on a stage of the VoLTE call setup procedure;
- and
- starting the timer based at least in part on the VoLTE call setup procedure;
- and
- transmitting at least one padding message upon expiration of the timer to maintain the RRC connection for the VoLTE call setup procedure.
An apparatus for voice over LTE (VoLTE) call setup for a first wireless communication device, comprising:
- means for initiating a VoLTE call setup procedure to establish voice communications between the first wireless communication device and a second wireless communication device;
- means for establishing a radio resource control (RRC) connection as part of the VoLTE call setup procedure;
- means for setting a time period value of a timer based at least in part on a stage of the VoLTE call setup procedure;
- means for starting the timer based at least in part on the VoLTE call setup procedure;
- and
- means for transmitting at least one padding message upon expiration of the timer to maintain the RRC connection for the VoLTE call setup procedure.
An apparatus for voice over LTE (VoLTE) call setup for a first wireless communication device, comprising:
- a processor;
- memory in electronic communication with the processor, the memory embodying instructions, the instructions being executable by the processor to:
- initiate a VoLTE call setup procedure to establish voice communications between the first wireless communication device and a second wireless communication device;
- establish a radio resource control (RRC) connection as part of the VoLTE call setup procedure;
- set a time period value of a timer based at least in part on a stage of the VoLTE call setup procedure;
- start the timer based at least in part on the VoLTE call setup procedure;
- and
- transmit at least one padding message upon expiration of the timer to maintain the RRC connection for the VoLTE call setup procedure.
A method for voice over LTE (VoLTE) call setup for a first wireless communication device, comprising:
- receiving a request from the first wireless communication device for setup of a VoLTE call to establish voice communications between the first wireless communication device and a second wireless communication device;
- establishing a radio resource control (RRC) connection with the first wireless communication device based at least in part on the received request;
- setting a time period value of a timer for the RRC connection based at least in part on a stage of the VoLTE call setup;
- starting the timer for the RRC connection;
- receiving at least one padding message to maintain the RRC connection for the VoLTE call setup;
- and
- extending the timer upon receiving the at least one padding message.
Dependencies are inferred from the claim text.