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US 10,257,234 B2Granted
Method and apparatus for controlling handover procedure in wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorSong-Hak Lee
Life of this patent
Estimating the term…
Abstract
A method is provided for controlling a handover procedure in a wireless communication system. In a method for operating a base station, whether a session setup request for a voice call of a terminal occurs is determined. If a handover request from the terminal occurs within a time period after the session setup request occurs, triggering of a handover procedure is delayed.
Claims20
A method for operating a base station serving a terminal in a wireless communication system, the method comprising:
- detecting, by the base station, a first message for requesting a setup of a voice call transmitted from a terminal;
- setting a timer of a predetermined duration for setup of the voice call in response to detecting of the first message;
- if the base station receives, from the terminal, a second message for requesting a handover of the terminal from the base station to another base station during the predetermined duration, delaying the handover during the predetermined duration until the setup of the voice call is completed within the predetermined duration;
- and performing the handover after the predetermined duration based on a quality of a channel between the terminal and the base station;
- and if the base station receives, from the terminal, a third message for requesting the handover during the predetermined duration, performing the handover within the predetermined duration, wherein the third message is received from the terminal based on the quality of the channel between the terminal and the base station is less than a first threshold, and a quality of the channel between the terminal and the another base station is greater than a second threshold.
2 more elements
A method for operating a terminal served by a base station in a wireless communication system, the method comprising:
- transmitting, by the terminal, a first message for requesting a setup of a voice call, wherein the first message is used to set a timer of a predetermined duration for setup of the voice call by the base station;
- transmitting, by the terminal, to the base station, a second message for requesting a handover of the terminal from the base station to another base station during the predetermined duration, wherein during the predetermined duration, the handover is delayed until the setup of the voice call is completed within the predetermined duration;
- performing the handover after the predetermined duration based on a quality of a channel between the base station and the terminal, if the quality of the channel between the terminal and the base station is less than a first threshold, and a quality of the channel between the terminal and the another base station is greater than a second threshold;
- transmitting, to the base station, a third message for requesting the handover during the predetermined duration;
- and performing the handover within the predetermined duration.
2 more elements
An apparatus for a base station serving a terminal in a wireless communication system, the apparatus comprising:
- at least one processor configured to detect a first message for requesting a setup of a voice call transmitted from a terminal;
- and at least one transceiver configured to:
- set a timer of a predetermined duration for setup of the voice call in response to detection of the first message, if the base station receives, from the terminal, a second message for requesting a handover of the terminal from the base station to another base station during the predetermined duration, and delay the handover during the predetermined duration until the setup of the voice call is completed within the predetermined duration, wherein the at least one processor is further configured to:
- perform the handover after the predetermined duration based on a quality of a channel between the terminal and the base station, and if the base station receives, from the terminal, a third message for requesting the handover during the predetermined duration, perform the handover within the predetermined duration, wherein the third message is received from the terminal based on the quality of the channel between the terminal and the base station is less than a first threshold, and a quality of the channel between the terminal and the another base station is greater than a second threshold.
1 more element
An apparatus for a terminal served by a base station in a wireless communication system, the apparatus comprising:
- at least one transceiver configured to:
- transmit a first message for requesting a setup of a voice call, wherein the first message is used to set a timer of a predetermined duration for setup of the voice call by the base station, and transmit, to the base station, a second message for requesting a handover of the terminal from the base station to another base station during the predetermined duration, wherein during the predetermined duration the handover is delayed until the setup of the voice call is completed within the predetermined duration;
- and at least one processor configured to:
- perform the handover after the predetermined duration based on a quality of a channel between the base station and the terminal, if the quality of the channel between the terminal and the base station is less than a first threshold, and a quality of the channel between the terminal and the another base station is greater than a second threshold, transmit, to the base station, a third message for requesting the handover during the predetermined duration, and perform the handover within the predetermined duration.
1 more element
Dependencies are inferred from the claim text.