Mobile Communication System, Radio Base Station Device, Radio Network Control Device, Mobile Communication Method and Mobile Communication Program

• US 20070237109A1
• Filed: 09/13/2005
• Published: 10/11/2007
• Est. Priority Date: 09/17/2004
• Status: Abandoned Application

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Fukui, Akito, Kanazawa, Takeshi, Iida, Kenichiro, Tamura, Tomojumi
• Application Number:
  US11/575,456
• Publication Number:
  US 20070237109A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 2001/0092 Error control systems characterised by the topology of the transmission link
• CPC Class Codes: H04W 36/02 Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off

Abstract

There is provided a mobile communication system capable of improving the throughput. In this system, a radio base station device (1022) waits for an upstream retransmission packet for a predetermined period of time before the moment when the retransmission time out expiration time has come and transmits a retransmission wait release request to a radio network control device (1031). When the radio base station device (1022) receives a retransmission wait release response instructing to stop the retransmission wait from the radio network control device (1031), it stops wait for the upstream packet retransmission. When the radio network control device (1031) has confirmed that the upstream packet has been received from another radio base station device upon reception of the retransmission wait release request, it creates the retransmission wait release response instruction stop of the retransmission wait and transmits it to the radio base station device (1022).

Claims

1. A mobile communication system comprising:

a plurality of mobile communication terminal devices;

a plurality of radio base station devices that perform radio communications with the mobile communication terminal devices; and

a radio network control device that controls the plurality of radio base station devices, wherein;

the radio base station devices transmit a retransmission wait cancellation request that requests a cancellation of a retransmission wait before a retransmission timeout expiry time passes during a retransmission wait for uplink retransmission packets, and stops the retransmission wait upon receiving a retransmission wait cancellation acknowledgment that specifies a stop of the retransmission wait; and

the radio network control device transmits the retransmission wait cancellation acknowledgment to a radio base station device that transmitted the retransmission wait cancellation request when an uplink retransmission packet specified by the retransmission wait cancellation request has been received from another radio base station device other than the radio base station device that transmitted the retransmission wait cancellation request.

2. A radio base station device comprising:

a retransmission wait cancellation request section that transmits a retransmission wait cancellation request that requests a cancellation of a retransmission wait before a retransmission timeout expiry time passes during a retransmission wait for uplink retransmission packets; and

a retransmission wait stopping section that stops the retransmission wait upon receiving a retransmission wait cancellation acknowledgement that specifies a stop of the retransmission wait in response to the retransmission wait cancellation request transmitted by the retransmission wait cancellation request section.

3. A radio network control device comprising:

a packet check section that, upon receiving a retransmission cancellation request that requests a cancellation of a retransmission wait for uplink retransmission packets, checks whether a packet specified by the retransmission wait cancellation request has been received from another radio base station device other than the radio base station device that transmitted the retransmission wait cancellation request; and

a retransmission wait cancellation acknowledgment section that transmits a retransmission wait cancellation acknowledgment that specifies a stop of the retransmission wait to the radio base station device that transmitted the retransmission wait cancellation request when the packet check section checks that the uplink retransmission packet has been received from another radio base station device.

4. A mobile communication method comprising:

transmitting from a radio base station device a retransmission wait cancellation request that requests a cancellation of a retransmission wait before a retransmission timeout expiry time passes during a retransmission wait for uplink retransmission packets;

receiving at a radio network control device the retransmission wait cancellation request and checking whether an uplink retransmission packet specified by the received retransmission wait cancellation request has been received from another radio base station device other than the radio base station device that transmitted the retransmission wait cancellation request;

transmitting, when it is checked that the uplink retransmission packet has been received from the another radio base station device, from the radio network control device a retransmission wait cancellation acknowledgment that specifies a stop of the retransmission wait to the radio base station device that transmitted the retransmission wait cancellation request; and

receiving at the radio base station device the retransmission wait cancellation acknowledgment and stopping the retransmission wait.

5. A mobile communication program for executing the steps of:

transmitting from a base station device a retransmission wait cancellation request that requests a cancellation of a retransmission wait before a retransmission timeout expiry time passes during a retransmission wait for uplink retransmission packets;

receiving at a radio network control device the retransmission wait cancellation request and checking whether an uplink retransmission packet specified by the received retransmission wait cancellation request has been received from another radio base station device other than the radio base station device that transmitted the retransmission wait cancellation request;

transmitting, when it is checked that the uplink retransmission packet has been received from the another radio base station device, from the radio network control device a retransmission wait cancellation acknowledgment that specifies a stop of the retransmission wait to the radio base station device that transmitted the retransmission wait cancellation request; and

receiving at the radio base station device the retransmission wait cancellation acknowledgment and stopping the retransmission wait.