Method and apparatus for controlling access of terminal equipment in wireless communication system

Abstract

A serving cell performs a connection establishment procedure with terminal equipment, stores the connection configuration information of the terminal equipment, and maintains the connection configuration information of the terminal equipment transited to an idle state depending on a set information maintaining condition. Further, the serving cell provides a service to the terminal equipment using the connection configuration information of the terminal equipment without the connection establishment procedure when the terminal equipment in the idle state tries a re-access.

What is claimed is: 
     
         1 . A method for controlling an access of terminal equipment in a serving cell, comprising:
 performing a connection establishment procedure with the terminal equipment and storing connection configuration information of the terminal equipment;   maintaining the connection configuration information of the terminal equipment transited to an idle state depending on a set information maintaining condition; and   providing a service to the terminal equipment using the connection configuration information of the terminal equipment without the connection establishment procedure when the terminal equipment in the idle state tries a re-access.   
     
     
         2 . The method of  claim 1 , wherein:
 the information maintaining condition includes at least one of:   a first condition corresponding to a set timer expiration time;   a second condition in a continuously set area after the terminal equipment is transited to the idle state; and   a third condition in which a quality of received signal of the terminal equipment corresponds to a set reference value or more, while satisfying the second condition.   
     
     
         3 . The method of  claim 1 , further comprising:
 estimating a predicted path of the terminal equipment; and   transmitting the connection configuration information of the terminal equipment to a target cell before the terminal equipment enters the target cell.   
     
     
         4 . The method of  claim 1 , further comprising:
 determining a cell change of the terminal equipment based on a measurement result from the terminal equipment transited to the idle state; and   performing a cell change procedure for the terminal equipment.   
     
     
         5 . The method of  claim 4 , wherein:
 the performing of the cell change procedure includes:   transmitting a cell change request including the information of the terminal equipment to the target cell;   transmitting a first cell change notification control message to the target cell when the target cell permits the access of the terminal equipment; and   transmitting a control message for serial number (SN) status information transmission or data forwarding to the target cell.   
     
     
         6 . The method of  claim 5 , wherein:
 the performing of the cell change procedure further includes transmitting a second cell change notification control message including the information of the target cell using an indicator notifying the cell change to the terminal equipment or a scheduling identifier.   
     
     
         7 . The method of  claim 5 , wherein:
 the cell change request further includes information on predicted time when the terminal enters a service area of the target cell and information on time when control authority for the terminal equipment is handed over to the target cell.   
     
     
         8 . The method of  claim 1 , further comprising:
 allocating a common radio resource to other base stations within the area, in the case of a set area; and   transmitting common information to the terminal equipment using the common radio resource when the terminal equipment enters in the area,   wherein the common information includes at least one of system information, physical layer channel configuration and allocation information, common control information, radio resource allocation information for a control channel, resource information for access procedure performance, or configuration information of a resource for resource request procedure performance, downlink transmission request resource information, reference signal configuration and allocation information, radio source information for device-to-device communication, and radio resource information for transmitting a control signal for device-to-device communication and the common information further includes an identifier for identifying the area.   
     
     
         9 . The method of  claim 1 , further comprising:
 controlling the terminal equipment to perform at least one of cell registration, location update, and measurement result report when the terminal equipment in the idle state satisfies a predetermined condition during movement.   
     
     
         10 . The method of  claim 9 , wherein:
 the predetermined condition includes at least one of:   a first condition in which the number of nodes passing during the movement meets the number of preset nodes;   a second condition satisfying a preset timer value;   a third condition moving a preset distance;   a fourth condition changing a progress direction;   a fifth condition to enter a cell designated to perform at least one of the cell registration, the location update, and the measurement result report; and   a sixth condition satisfying a selective combination of the first to fifth conditions.   
     
     
         11 . The method of  claim 1 , further comprising:
 receiving a cell change notification control message including the information of the terminal equipment from a target cell when the terminal equipment transited to the idle state determines a cell change to the target cell; and   transmitting at least one of connection configuration information, moving status information, and providing service information of the terminal equipment to the target cell.   
     
     
         12 . The method of  claim 1 , further comprising:
 deleting the connection configuration information of the terminal equipment when a handover procedure of the terminal equipment to a target cell is completed.   
     
     
         13 . The method of  claim 1 , further comprising:
 deleting connection configuration information of the terminal equipment when a defined time lapses.   
     
     
         14 . An apparatus for controlling an access of terminal equipment, comprising:
 a transmitting/receiving apparatus connected to a network to perform communication;   a storage device storing connection configuration information of the terminal equipment; and   a processor performing a connection establishment procedure with the terminal equipment to provide a service to the terminal equipment, maintaining the connection configuration information of the terminal equipment transited to an idle state depending on an information maintaining condition, and providing the information of the terminal equipment including the connection configuration information to a target cell through the transmitting and receiving apparatus when a cell change of the terminal equipment is determined depending on a cell change condition.   
     
     
         15 . The apparatus of  claim 14 , wherein:
 the information maintaining condition includes at least one of:   a first condition corresponding to a set timer expiration time;   a second condition in a continuously set area after the terminal equipment is transited to the idle state, and   a third condition in which a quality of received signal of the terminal equipment corresponds to a set reference value or more, while satisfying the second condition.   
     
     
         16 . The apparatus of  claim 14 , wherein:
 the processor determines the cell change of the terminal equipment based on measurement result information from the terminal equipment and notifies the terminal equipment of the cell change including information of the target cell through the transmitting/receiving apparatus.   
     
     
         17 . The apparatus of  claim 14 , wherein:
 when an area is set, the processor allocates a common radio resources to other base stations within the set area and transmits common information to terminal equipment within the area through the transmitting and receiving apparatus using the common radio resource, and   the common information includes at least one of system information, physical layer channel configuration and allocation information, common control information, radio resource allocation information for a control channel, resource information for access procedure performance, or configuration information of a resource for resource request procedure performance, downlink transmission request resource information, reference signal configuration and allocation information, radio source information for device-to-device communication, and radio resource information for transmitting a control signal for device-to-device communication and the common information further includes an identifier for identifying the area.   
     
     
         18 . The method of  claim 14 , wherein:
 the processor controls the terminal equipment to perform at least one of cell registration, location update, and measurement result report when the terminal equipment in the idle state satisfies a predetermined condition during movement, and   the predetermined condition includes at least one of:   a first condition in which the number of nodes passing during the movement meets the number of preset nodes;   a second condition satisfying a preset timer value;   a third condition moving a preset distance;   a fourth condition changing a progress direction;   a fifth condition to enter a cell designated to perform at least one of the cell registration, the location update, and the measurement result report; and   a sixth condition satisfying a selective combination of the first to fifth conditions.   
     
     
         19 . A method for controlling an access in terminal equipment, comprising:
 establishing a connection with a serving cell and then transiting to an idle state;   performing a cell change procedure when a cell change to a target cell depending on a cell change condition is determined; and   performing at least one of cell registration, location update, and measurement result report when the terminal equipment in the idle state satisfies a predetermined condition during movement,   wherein the predetermined condition includes at least one of:   a first condition in which the number of nodes passing during the movement meets the number of preset nodes;   a second condition satisfying a preset timer value;   a third condition moving a preset distance;   a fourth condition changing a progress direction;   a fifth condition to enter a cell designated to perform at least one of the cell registration, the location update, and the measurement result report; and   a sixth condition satisfying a selective combination of the first to fifth conditions.   
     
     
         20 . The method of  claim 19 , wherein:
 the performing of the cell change procedure includes:   determining a cell change to the target cell;   trying an access to the target cell while transmitting the information of the serving cell and the information of the terminal equipment to the target cell; and   transmitting, by the serving cell receiving a cell change notification control message from the target cell, connection configuration information of the terminal equipment to the target cell.