US 2021/0345185 A1 · FAST RETURN TO 5G NEW RADIO

Abstract

Re-connecting to a first radio access network (RAN) of a first radio access technology (RAT) may include initially connecting to the first RAN. A connection associated with a voice call may then be connected that includes connecting to a RAN of a second RAT. In response to the voice call connecting to the second RAN, information for both a frequency and a cell associated with connecting to the first RAN may be stored. An end to the voice call may be identified. In response to determining that the voice call has ended, a timer may be generated at the UE that comprises a specified time period and the timer and the information stored for both the frequency and the cell associated with connecting to the first RAN may be utilized to re-connect to the first RAN.

Claims26

Dependent claims

An apparatus of a user equipment (UE), comprising:

one or more processors configured to:
connect to a first radio access network (RAN) of a first radio access technology (RAT);
create a connection associated with a voice call, wherein creating the connection associated with the voice call includes performing a handover procedure or a redirection procedure to a second RAN of a second RAT;
in response to the voice call connecting to the second RAN, store information for both a frequency and a cell associated with connecting to the first RAN;
identify that the voice call has ended;
and
in response to determining that the voice call has ended:
generate a timer at the UE comprising a specified time period;
and
utilize the timer and the information stored for both the frequency and the cell associated with connecting to the first RAN to re-connect to the first RAN;
and
a memory configured to store the information for both the frequency and the cell associated with connecting to the first RAN.

9 more elements

A computer-readable storage medium, the computer-readable storage medium including instructions that when executed by a processor of a user equipment (UE) configured to re-connect to a first radio access network (RAN) of a first radio access technology (RAT), cause the processor to:

connect to the first RAN;
create a connection associated with a voice call, wherein creating the connection associated with the voice call includes performing a handover procedure or a redirection procedure to a second RAN of a second RAT;
in response to the voice call connecting to the second RAN, store information for both a frequency and a cell associated with connecting to the first RAN;
identify that the voice call has ended;
and
in response to determining that the voice call has ended:
generate a timer at the UE comprising a specified time period;
and
utilize the timer and the information stored for both the frequency and the cell associated with connecting to the first RAN to re-connect to the first RAN.

6 more elements

A method of a user equipment (UE) re-connecting to a first radio access network (RAN) of a first radio access technology (RAT), the method comprising:

connecting to the first RAN;
creating a connection associated with a voice call, wherein creating the connection associated with the voice call includes performing a handover procedure or a redirection procedure to a second RAN of a second RAT;
in response to the voice call connecting to the second RAN, storing information for both a frequency and a cell associated with connecting to the first RAN;
identifying that the voice call has ended;
and
in response to determining that the voice call has ended:
generating a timer at the UE comprising a specified time period;
and
utilizing the timer and the information stored for both the frequency and the cell associated with connecting to the first RAN to re-connect to the first RAN.

6 more elements

Dependencies are inferred from the claim text.

Fast return to 5g new radio

Life of this patent

Fast return to 5g new radio

Life of this patent

Abstract

Claims26