JP2011229169A5

JP2011229169A5 -

Info

Publication number: JP2011229169A5
Application number: JP2011131373A
Authority: JP
Filing date: 2011-06-13
Publication date: 2012-04-26
Anticipated expiration: 2027-03-22

Claims

In a communication system that transmits a packet with a number indicating the order from the base station to the mobile station, rearranges the packets in the mobile station in numerical order, and executes hard handover.
Set whether or not to forward packets not transmitted to the mobile station among the packets received from the upper station when executing the handover sequence to the destination base station, and move the packet when executing the handover sequence according to the setting. A source base station comprising: a control unit that controls transfer to a destination base station, and indicates whether or not the packet is transferred, and transmits information indicating whether or not the packet is taken over to the mobile station;
A receiving unit that receives information indicating whether or not the packet has been taken over, and at the time of executing a handover sequence, based on the information that indicates whether or not the packet has been taken over from the source base station, a packet that is received from the destination base station A mobile station comprising a control unit for controlling the ordering process;
A communication system comprising:

The control unit of the source base station moves information indicating whether or not the packet is taken over, which is used to determine whether or not the mobile station performs reordering of a packet received from the destination base station. Send to the station,
The communication system according to claim 1.

When transferring a packet that has not been transmitted to the mobile station to the mobile base station when the handover sequence is executed, the control unit of the mobile base station transfers the packet to the mobile base station and executes the takeover of the packet. If the information to be transmitted is transmitted to the mobile station and is not transferred, information indicating that the packet is not taken over is transmitted to the mobile station.
The communication system according to claim 1 or 2.

The control unit of the source base station sets whether or not to transfer a packet not transmitted to the mobile station during handover sequence execution to the destination base station according to a communication call,
The communication system according to any one of claims 1 to 3.

A storage unit that stores the packet received from the upper station by the destination base station and the packet received from the source base station when executing the handover sequence, a packet transmission unit that transmits the packet stored in the storage unit to the mobile station;
The communication system according to any one of claims 1 to 4, further comprising:

The destination base station transmits a packet received from the source base station at the time of executing the handover sequence to the mobile station with higher priority than the packet received from the upper station,
The communication system according to any one of claims 1 to 5, further comprising:

The control unit of the mobile station may or may not execute reordering of a packet received from the destination base station based on information indicating whether or not the packet received from the source base station is taken over when the handover sequence is executed. To decide,
The communication system according to any one of claims 1 to 6.

The control unit of the mobile station controls reordering processing of a packet received from the destination base station based on information indicating presence / absence of takeover of the packet set in response to a communication call.
The communication system according to any one of claims 1 to 7.

A storage unit for storing packets received by the mobile station from a base station;
With
The control unit of the mobile station controls reordering processing of packets stored in the storage unit of the mobile station;
The communication system according to any one of claims 1 to 8.

The control unit of the mobile station terminates the reordering process when a packet having a consecutive number is not received even after the packet reordering process is performed for a predetermined time.
The communication system according to any one of claims 1 to 9.

In a communication system that transmits a packet with a number indicating the order from the base station to the mobile station, delivers the packet in numerical order at the mobile station, and executes a handover.
A source base station comprising a control unit that controls transmission of setting information indicating whether or not the packet is transferred to the mobile station,
A receiving unit that receives setting information indicating presence / absence of transfer of the packet, and a control unit that controls delivery in order of number of packets at the time of handover based on setting information indicating presence / absence of transfer of the packet received from the source base station A mobile station with a
A communication system comprising:

The control unit of the source base station sets whether or not to transfer a packet not transmitted to the mobile station among the packets received from the upper station to the destination base station, and at the time of handover according to the setting 12. The communication system according to claim 11, wherein transfer of the packet to a destination base station is controlled, and transmission of setting information indicating presence / absence of transfer of the packet to the mobile station is controlled.

The control unit of the source base station sets whether or not to transfer a packet not transmitted to the mobile station among the packets received from the upper station to the destination base station during handover. Item 13. The communication system according to Item 12.