Communication mode controlling method, mobile communication system, radio network controller, base station, and mobile communication terminal
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorHideji Wakabayashi
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Abstract
A communication mode which should be set to a mobile communication terminal having a function of switching between an autonomous mode and a scheduling mode is determined based on an amount of interference in each of the communication modes in the cell of a base station, and/or communication characteristics of each of the communication modes, and a signal indicating an amount of communication data notified from the mobile communication terminal. The base station then notifies the determined communication mode to the mobile communication terminal.
Claims21
A communication mode controlling method for use in a mobile communication system provided with a mobile communication terminal having a function of switching between an autonomous mode in which the mobile communication terminal autonomously carries out data communications with a base station, and a scheduling mode in which the mobile communication terminal carries out data communications with said base station at a permitted communication timing, and an RNC(Radio Network Controller) for managing communication resources for said base station and said mobile communication terminal, said communication mode controlling method comprising:
- a threshold determination step in which said base station and/or said RNC determines a threshold value used for switching between said communication modes and associated with an amount of communication data in a communication data buffer which said mobile communication terminal has according to an amount of interference in each of said communication modes in a cell of said base station, and/or communication characteristics thereof;
- and
- a notification step in which said base station notifies the threshold value associated with said amount of communication data determined in said threshold determination step to said mobile communication terminal.
A communication mode controlling method for use in a mobile communication system provided with a mobile communication terminal having a function of switching between an autonomous mode in which the mobile communication terminal autonomously carries out data communications with a base station, and a scheduling mode in which the mobile communication terminal carries out data communications with said base station at a permitted communication timing, and an RNC for managing communication resources for said base station and said mobile communication terminal, said communication mode controlling method comprising:
- a communication mode determination step in which said base station and/or said RNC determines a communication mode which should be set to said mobile communication terminal based on an amount of interference in each of said communication modes in a cell of said base station, and/or communication characteristics thereof, and a signal indicating an amount of communication data notified from said mobile communication terminal;
- and
- a notification step in which said base station notifies the communication mode determined in said communication mode determination step to said mobile communication terminal.
A mobile communication system provided with a mobile communication terminal having a function of switching between an autonomous mode in which the mobile communication terminal autonomously carries out data communications with a base station, and a scheduling mode in which the mobile communication terminal carries out data communications with said base station at a permitted communication timing, and an RNC for managing communication resources for said base station and said mobile communication terminal, characterized in that said RNC includes a communication resource management unit for setting a range of amounts of permissible interference which can be accepted by said base station when carrying out data communications with said mobile communication terminal, said base station includes a communication management unit for notifying information about a switching between the communication modes in said mobile communication terminal, which is used for controlling an amount of interference in each of said communication modes so that it falls within said range of amounts of permissible interference to said mobile communication terminal, and said mobile communication terminal includes a communication management unit for determining a communication mode which said mobile communication terminal should go into according to said information about a switching between the communication modes.
An RNC disposed in a mobile communication system provided with a mobile communication terminal having a function of switching between an autonomous mode in which the mobile communication terminal autonomously carries out data communications with a base station, and a scheduling mode in which the mobile communication terminal carries out data communications with said base station at a permitted communication timing, said RNC managing communication resources for said base station and said mobile communication terminal, characterized in that said RNC includes a communication resource management unit for determining a threshold value for switching between said communication modes, which is associated with an amount of communication data in a communication data buffer which said mobile communication terminal has based on an amount of interference in each of said communication modes in a cell of said base station and/or communication characteristics in each of said communication modes.
A base station with which a mobile communication terminal can autonomously carry out data communications in an autonomous mode and can carry out data communications in a scheduling mode at a communication timing which is permitted thereby, characterized in that said base station includes a communication resource management unit for determining a threshold value for switching between said communication modes, which is associated with an amount of communication data in a communication data buffer which said mobile communication terminal has based on an amount of interference in each of said communication modes in a cell of said base station and/or communication characteristics in each of said communication modes, and a communication unit for notifying said threshold value to said mobile communication terminal as information about switching between the communication modes.
A base station with which a mobile communication terminal can autonomously carry out data communications in an autonomous mode and can carry out data communications in a scheduling mode at a communication timing which is permitted thereby, characterized in that said base station includes a communication resource management unit for determining a threshold value for switching between said communication modes, which is associated with an amount of communication data in a communication data buffer which said mobile communication terminal has based on an amount of interference in each of said communication modes in a cell of said base station and/or communication characteristics in each of said communication modes, and for determining a communication mode which should be set to said mobile communication terminal according to a result of a comparison between said threshold value and the amount of communication data in said communication data buffer of said mobile communication terminal, and a communication unit for notifying said threshold value to said mobile communication terminal as information about switching between the communication modes.
Dependencies are inferred from the claim text.