Method and device for optimizing voice fallback in next-generation mobile communication
AssigneeSamsung Electronics Co., Ltd.
InventorSangbum KIM
Life of this patent
Estimating the term…
Abstract
A method performed by a terminal in a wireless communication system is provided. The method comprises the steps of: receiving a message for a command of handover from a cell of a first radio access technology (RAT) to a target cell of a second RAT, the message including voicefallbackindication; performing handover from the cell of the first RAT to the target cell of the second RAT on the basis of the message; and determining report content for a radio link failure if establishment of a connection to the target cell is not successful, wherein the report content for a radio link failure can include information indicating that the handover failure is associated with voice fallback.
Claims15
A method performed by a terminal in a wireless communication system, comprising:
- receiving a message for a command of handover from a cell of a first radio access technology (RAT) to a target cell of a second RAT, the message including voice fallback indication (voicefallbackindication);
- performing handover from the cell of the first RAT to the target cell of the second RAT based on the message;
- and
- determining report content for a radio link failure in case that establishment of a connection to the target cell is not successful,
- wherein the report content for the radio link failure includes information indicating that a failure of the handover is associated with voice fallback.
A method performed by a base station of a first radio access technology (RAT) in a wireless communication system, comprising:
- transmitting, to a terminal, a message for a command of handover from a cell of the first RAT to a target cell of a second RAT, handover from the cell of the first RAT to the target cell of the second RAT being performed based on the message;
- and
- receiving report content for a radio link failure from a third cell in case that the handover fails,
- wherein the message includes voice fallback indication (voicefallbackindication), and
- wherein the report content for the radio link failure includes information indicating that a failure of the handover is associated with voice fallback.
A terminal in a wireless communication system, comprising:
- a transceiver;
- and
- a processor functionally connected to the transceiver,
- wherein the processor is configured to:
- receive a message for a command of handover from a cell of a first radio access technology (RAT) to a target cell of a second RAT,
- perform handover from the cell of the first RAT to the target cell of the second RAT based on the message;
- and
- determine report content for a radio link failure in case that establishment of a connection to the target cell is not successful,
- wherein the message includes voice fallback indication (voicefallbackindication), and wherein the report content for the radio link failure includes information indicating that a failure of the handover is associated with voice fallback.
A base station in a wireless communication system, comprising:
- a transceiver;
- and
- a processor functionally connected to the transceiver,
- wherein the processor is configured to:
- transmit, to a terminal, a message for a command of handover from a cell of a first radio access technology (RAT) corresponding to the base station to a target cell of a second RAT, handover from the cell of the first RAT to the target cell of the second RAT being performed based on the message;
- and
- receive report content for a radio link failure from a third cell in case that the handover fails,
- wherein the message includes voice fallback indication (voicefallbackindication), and
- wherein the report content for the radio link failure includes information indicating that a failure of the handover is associated with voice fallback.
Dependencies are inferred from the claim text.