MOBILE COMMUNICATION SYSTEM AND COMMUNICATION METHOD

• US 20180049076A1
• Filed: 10/23/2017
• Published: 02/15/2018
• Est. Priority Date: 03/22/2007
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: HAYASHI, Sadafuku
• Granted Patent: US 10,080,165 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 12/14 Charging , metering or billing arrangements for data wireline or wireless communications
• CPC Class Codes: H04L 12/1435 volume-based
• CPC Class Codes: H04M 15/73 Validating charges
• CPC Class Codes: H04M 15/8038 Roaming or handoff
• CPC Class Codes: H04M 2215/204 UMTS; GPRS
• CPC Class Codes: H04M 2215/7072 Validate charges
• CPC Class Codes: H04M 2215/7442 Roaming
• CPC Class Codes: H04W 36/0072 of resource information of target access point
• CPC Class Codes: H04W 36/02 Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
• CPC Class Codes: H04W 36/08 Reselecting an access point
• CPC Class Codes: H04W 4/24 Accounting or billing
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: H04W 92/20 between access points

Abstract

A mobile communication system which can transfer information on the number of packets counted up until then by a base station of a mobile source, to a base station of a mobile target, even when a terminal performs a handover. UE moves to a Target eNode B, but a Source eNode B decides to perform a handover, and the Source eNode B includes information on the number of packets counted up until then in a Handover Request message to the Target eNode B, so as to notify the Target eNode B. After receiving a Handover Confirm message from the UE, the Target eNode B includes information on the number of packets received from the Source eNode B in a Handover Complete message transmitted to a CN Node, so as to notify the CN Node.

Claims

1. A method of communicating, the method comprising:

transmitting, from a base station to a second base station, information that indicates unsuccessfully transmitted downlink data volume, if a wireless terminal performs a handover from the base station to the second base station;

the second base station accumulating information indicating a data volume for a report on a resource release;

the second base station receiving, from a core network, a request message related to the resource release; and

in response to the receiving the request message, the second base station transmitting, to the core network, a total amount of the data volume.

2. The method of claim 1, wherein the transmitting from the base station to the second base station comprises transmitting the information by a message relating to committing the handover.

3. A method of communicating, the method comprising:

performing, by a wireless terminal, a handover from a first base station to a second base station;

transmitting, from the first base station to the second base station, information that indicates unsuccessfully transmitted downlink data volume;

accumulating, by the second base station, information indicating a data volume for a report on a resource release;

receiving, by the second base station, a request message related to the resource release from a core network; and

in response to the receiving, transmitting, from the second base station to the core network, a total amount of the data volume.

4. The method according to claim 3, wherein the transmitting, from the first base station, comprises transmitting the information by a message relating to committing the handover.

5. A communication method in a communication system including a first base station and a second base station, the communication method comprising:

communicating, by the first base station, with a wireless terminal;

transmitting, by the first base station to the second base station, information that indicates unsuccessfully transmitted downlink data volume, if the wireless terminal performs a handover from the first base station to the second base station;

accumulating, by the second base station, information indicating a data volume for a report on a resource release; and

transmitting, from the second base station to a core network, a total amount of the data volume, when the second base station receives, from the core network, a request message related to the resource release.

6. The communication method according to claim 5, wherein the transmitting from the first base station to the second base station comprises transmitting the information by a message relating to committing the handover.

7. A method of communicating by a base station, the method comprising:

receiving from a second base station, information that indicates unsuccessfully transmitted downlink data volume, if a wireless terminal performs a handover from the second base station to the base station;

accumulating the information indicating a data volume for a report on a resource release; and

transmitting, to a core network, a total amount of the data volume when the base station receives, from the core network, a request message related to the resource release.

8. The method according to claim 7, wherein the receiving from the second base station comprises receiving the information by a message relating to committing the handover.