Mobile terminal and handover method for the mobile terminal
AssigneeChung-Ang University Industry-Academy Cooperation Foundation
InventorsJung-Ryun Lee, Hyun-Ho Choi, Hyun-Sik Kang, Oh-Young Song
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Abstract
A mobile terminal and a handover method for the mobile terminal are disclosed. A mobile terminal according to an embodiment of the invention may include a control unit configured to control the mobile terminal to perform a handover to a base station based on at least one of an on-off traffic characteristic of downlink data received from the base station and an on-off traffic characteristic of uplink data transmitted to the base station. When certain aspects of the invention are applied, the amount of data loss during a handover can be minimized.
Claims12
A mobile terminal comprising:
- a control unit configured to control the mobile terminal to perform a handover to a base station based on at least one of an on-off traffic characteristic of downlink data received from the base station and an on-off traffic characteristic of uplink data transmitted to the base station,
- wherein the control unit performs all of or a part of the handover, when at least one of the downlink data traffic and the uplink data traffic is in an off state,
- wherein the handover comprises a pre-registration operation, a detachment operation, an attachment operation, and a re-registration operation, and the control unit performs the detachment operation and the attachment operation, when at least one of the downlink data traffic and the uplink data traffic is in an off state,
- wherein the control unit performs the pre-registration operation, when a reception strength of the downlink data is greater than a preset threshold strength, and begins the detachment operation and the attachment operation at a later point between a starting point of an off state of the downlink data traffic and a starting point of an off state of the uplink data traffic, when the off state of the downlink data traffic and the off state of the uplink data traffic are started within a preset margin time from an end point of the pre-registration operation.
A handover method for a mobile terminal, the method comprising:
- measuring a reception strength of downlink data received from a base station;
- and
- controlling the mobile terminal to perform a handover to the base station, when the reception strength of the downlink data is greater than a preset threshold strength,
- wherein,
- the handover comprises a pre-registration operation, a detachment operation, an attachment operation, and a re-registration operation, and
- controlling the handover to the base station comprises:
- performing the pre-registration operation, when the reception strength of the downlink data is greater than a preset threshold strength,
- and beginning the detachment operation and the attachment operation at a later point between a starting point of an off state of the downlink data traffic and a starting point of an off state of the uplink data traffic, when the off state of the downlink data traffic and the off state of the uplink data traffic are started within a preset margin time from an end point of the pre-registration operation.
Dependencies are inferred from the claim text.