State synchronization method between a base station and a mobile station in a CDMA communication system
First Claim
1. A state synchronization method for transmitting packet data between a base station and a mobile station in a CDMA (Code Division Multiple Access) mobile communication system, comprising the steps of:
- transmitting, at the base station, a state check message to the mobile station at a watch period in an active state;
receiving, at the base station, a response message from the mobile station; and
transitioning a state of the base station to the state of the mobile station for synchronization by analyzing the received response message, wherein if the mobile station is in the active state, the base station maintains the active state, if the mobile station is in a control hold state, the base station transits to the control hold state, and if the mobile station is in a suspended state, the base station transits to the suspended state.
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Accused Products
Abstract
State synchronization methods for transmitting packet data between a base station and a mobile station in a CDMA mobile communication system are provided. In one method, the base station transmits a state check message to the mobile station in an active state. The base station receives a response message from the mobile station, and analyzes the received response message to determine a state of the mobile station. The base station terminates a corresponding channel and transitions to the state of the mobile station. In a second method for transmitting packet data between a base station and a mobile station in a CDMA mobile communication system, the mobile station transmits a state check message to the base station in an active state. The mobile station receives a response message from the base station and analyzes the received response message to determine a state of the base station. The mobile station terminates a corresponding channel and transitions the mobile station to the state of the base station.
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Citations
6 Claims
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1. A state synchronization method for transmitting packet data between a base station and a mobile station in a CDMA (Code Division Multiple Access) mobile communication system, comprising the steps of:
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transmitting, at the base station, a state check message to the mobile station at a watch period in an active state;
receiving, at the base station, a response message from the mobile station; and
transitioning a state of the base station to the state of the mobile station for synchronization by analyzing the received response message, wherein if the mobile station is in the active state, the base station maintains the active state, if the mobile station is in a control hold state, the base station transits to the control hold state, and if the mobile station is in a suspended state, the base station transits to the suspended state. - View Dependent Claims (2)
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3. A state synchronization method for transmitting packet data between a base station and a mobile station in a CDMA mobile communication system, comprising the steps of:
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transmitting, at the mobile station, a state check message to the base station at a watch period in an active state;
receiving, at the mobile station, a response message from the base station; and
transitioning a state of the mobile station to the state of the base station for synchronization by analyzing the received response message, wherein if the mobile station is in the active state, the base station maintains the active state, if the mobile station is in a control hold state, the base station transits to the control hold state, and if the mobile station is in a suspended state, the base station transits to the suspended state. - View Dependent Claims (4)
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5. A state synchronization method for transmitting packet data between a base station which generates a state transition command including a response request field and a mobile station in a CDMA mobile communication system, comprising the steps of:
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checking, at the base station, a frame error rate at a state transition period in an active state;
if the frame error rate is greater than a threshold value, transmitting, at the base station, the state transition command with the response request field being set to the mobile station, terminating a dedicated traffic channel upon receipt of a response message from the mobile station, and transitioning the base station to a control hold state; and
if the frame error rate is less than the threshold value, transmitting, at the base station, the state transition command with the response request field being reset to the mobile station, terminating the dedicated traffic channel, and transitioning the base station to the control hold state.
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6. A state synchronization method for transmitting packet data between a base station which generates a state transition command including a response request field and a mobile station in a CDMA mobile communication system, comprising the steps of:
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receiving, at the mobile station, the state transition command from the base station in an active state;
determining, at the mobile station, whether the response request field has been set by the received state transition command;
if the response request field has been not set, terminating a dedicated traffic channel and transitioning to a control hold state; and
if the response request field has been set, transmitting a response message to the base station, receiving a check message from the base station, terminating the dedicated traffic channel, and transitioning to the control hold state.
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Specification