초록 ▼

A wireless communication system in which a communication apparatus performs a packet communication with a radio network controller through a base transceiver station stores identification information about a communication line in a first state in which communications are performed using an individua

A wireless communication system in which a communication apparatus performs a packet communication with a radio network controller through a base transceiver station stores identification information about a communication line in a first state in which communications are performed using an individual channel and line information including a setting parameter. When an index of an amount of data communication in the first state falls below a threshold, the individual channel is released and a transition to a second state in which communications are performed using a common channel is performed. When an index in the second state exceeds the threshold, recovery to the first state is performed using the setting parameter.

대표청구항 ▼

What is claimed is: 1. A communication apparatus, comprising: a communication device performing a packet communication with a radio network controller through a base transceiver station using an individual channel or a common channel in a wireless communication system as a physical channel; a stora

What is claimed is: 1. A communication apparatus, comprising: a communication device performing a packet communication with a radio network controller through a base transceiver station using an individual channel or a common channel in a wireless communication system as a physical channel; a storage device storing identification information about a communication line in a first state in which a packet communication is performed with the radio network controller using the individual channel, and line information, including a setting parameter of the communication line in the first state; and a control device releasing the individual channel with line information about the communication line held when an index of an amount of packet data communication in the first state is compared with a predetermined threshold and the index falls below the threshold, performing control of changing to a second state in which a packet communication is performed with the radio network controller using the common channel, and performing control of recovery to the first state using the setting parameter when an index of an amount of packet data communication in the second state is compared with the threshold, and when the index exceeds the threshold wherein the communication device transmits a reset request for the individual channel to the radio network controller when the index of the amount of packet data communication in the second state exceeds the threshold and receives a resume request from the radio network controller, and the control device performs control for recovery to the first state using a setting parameter corresponding to identification information about the communication line included in the resume request. 2. A radio network controller, comprising: a communication device performing a packet communication with a communication apparatus through a base transceiver station using an individual channel or a common channel in a wireless communication system as a physical channel, receiving from the communication apparatus a transition request to change to a second state in which a packet communication is performed with the communication apparatus using the common channel in a first state in which the packet communication is performed with the communication apparatus using the individual channel, and receiving from the communication apparatus a request to reset the individual channel in the second state; a storage device storing identification information about a communication line in the first state, and line information including a setting parameter of the communication line in the first state; and a control device releasing the individual channel with line information about the communication line held, and performing control of changing to the second state when the device receives a transition request, and performing control of recovery to the first state using the setting parameter when the device receives the reset request wherein line information stored in the storage device further comprises address information about the communication apparatus, the control device reads identification information about the communication line from line information corresponding to address information about a source of the transition request, and the communication device transmits a resume request including identification information about the read communication line to the communication apparatus. 3. The controller according to claim 2, wherein the communication device receives the transition request from the communication apparatus when the index of the amount of packet data communication in the first state falls below the threshold, and extracts the reset request from the communication apparatus when the index of the amount of packet data communication in the second state exceeds the threshold. 4. The controller according to claim 2 wherein line information stored in the storage device further comprises address information about the base transceiver station, the control device reads address information about the base transceiver station from line information corresponding to address information about a source of the transition request, and the communication device transmits a resume request including identification information about the communication line to the base transceiver station. 5. The controller according to claim 2, wherein the control device clears line information about the communication line from the storage device when the communication apparatus moves to a wireless zone of another base transceiver station in the second state. 6. The controller according to claim 2, wherein the control device clears line information about the communication line from the storage device when the device does not receive within a predetermined time a message to be periodically transmitted by the communication apparatus to check whether or not communications can be performed in the second state. 7. The controller according to claim 2, wherein the control device clears line information about the communication line from the storage device when a frequency of receiving a message to be periodically transmitted by the communication apparatus to check whether or not communications can be performed in the second state exceeds a predetermined threshold. 8. A physical channel resetting method for use in a wireless communication system in which a communication apparatus performs a packet communication with a radio network controller through a base transceiver station using an individual channel or a common channel as a physical channel, comprising: storing, in each of the communication apparatus, the base transceiver station, and the radio network controller, line information including identification information about a communication line in a first state in which the communication apparatus and the radio network controller perform a packet communication using the individual channel, and a setting parameter of the communication line in the first state; comparing an index of an amount of packet data communication in the first state with a predetermined threshold; releasing the individual channel with line information about the communication line held when the index falls below the threshold, and performing control for a transition to a second state in which the communication apparatus and the radio network controller performs a packet communication using the common channel; comparing an index of an amount of packet data communication in the second state with the threshold; and performing control for recovery to the first state using the setting parameter when the index exceeds the threshold wherein line information stored in the radio network controller further includes address information about the communication apparatus, identification information about the communication line is read from line information stored in the radio network controller and corresponding to address information about a source of the transition request, and a resume request including the read identification information about the communication line is transmitted from the radio network controller to the communication apparatus. 9. The method according to claim 8, wherein a transition request for a transition to the second state is transmitted from the communication apparatus to the radio network controller when the index falls below the threshold in the first state; releasing the individual channel with line information about the communication line held, and performing control for a transition to the second state when the radio network controller receives the transition request; transmitting a reset request for the individual channel from the communication apparatus to the radio network controller when the index falls below the threshold in the second state; and performing control for recovery to the first state using the setting parameter when the radio network controller receives the reset request. 10. The method according to claim 8, wherein line information stored in the radio network controller further includes address information about the base transceiver station, address information about the base transceiver station is read from line information stored in the radio network controller and corresponding to address information about a source of the transition request, and a resume request including identification information about the communication line is transmitted from the radio network controller to the base transceiver station. 11. The method according to claim 8, wherein line information about the communication line is cleared from each of the communication apparatus, the base transceiver station, and the radio network controller when the communication apparatus moves to a wireless zone of another base transceiver station in the second state. 12. The method according to claim 8, wherein line information about the communication line is cleared from each of the communication apparatus, the base transceiver station, and the radio network controller when the radio network controller does not receive within a predetermined time a message to be periodically transmitted by the communication apparatus to check whether or not communications can be performed in the second state. 13. The method according to claim 8, wherein line information about the communication line is cleared from each of the communication apparatus, the base transceiver station, and the radio network controller when a frequency of transmitting a message to be periodically transmitted by the communication apparatus to check whether or not communications can be performed in the second state exceeds a predetermined threshold.