US 8,014,348 B2 · Radio access network system, radio access method, and control apparatus

Abstract

The object of the present invention is to provide a radio access network system which can adapt to an environment in each network domain, and can carry out the priority transmission control of the IP packets in consideration of traffic requirements. The control apparatus 3 has a priority information setter configured to set priority information for determining a priority of the packet to be transferred in a transfer path set in the network, and a packet processor configured to determine the priority of the received packet in accordance with the priority information, and to add the priority to the received packet.

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Drawings

Claims5

Dependent claims

A radio access network system for transferring user data in a radio access network, comprising:

a base station configured to communicate the user data with a mobile station via a radio channel;
and
a control apparatus configured to control the base station, wherein,
the mobile station transmits a transfer path setting request, for requesting to set a transfer path of the user data, to a core network via the radio access network,
the control apparatus receives a transfer path assignment request for requesting to assign the transfer path of the user data, from the core network, the transfer path assignment request including a traffic class regarding a radio access bearer established between the mobile station and the core network,
the control apparatus sets the transfer path of the user data, in accordance with the transfer path assignment request,
the control apparatus sets and IP priority used in the radio access network, based on the traffic class included in the transfer path assignment request, in accordance with a priority determination table for associating the traffic class with the IP priority,
the control apparatus transmits, to the base station, a radio channel setting request for requesting to set the radio channel, the radio channel setting request including the IP priority,
the base station associates the IP priority included in the radio channel setting request with the radio channel,
the mobile station transmits the user data to the base station via the radio channel,
the base station generates an IP packet based on the user data, and sets the IP priority to the IP packet, in accordance with association between the IP priority and the radio channel,
the base station transmits the IP packet generated in the base station to the control apparatus, in accordance with IP priority, and
the control apparatus transmits the IP packet received from the base station to the core network, in accordance with the IP priority.

10 more elements

A radio access method for transferring user data in a radio access network comprising a base station configured to communicate the user data with a mobile station via a radio channel, and a control apparatus configured to control the base station, the method comprising:

transmitting, from the mobile station to a core network via the radio access network, a transfer path setting request for requesting to set a transfer path of the user data;
receiving, at the control apparatus, a transfer path assignment request for requesting to assign the transfer path of the user data, from the core network, the transfer path assignment request including a traffic class regarding a radio access bearer established between the mobile station and the core network;
setting, at the control apparatus, the transfer path of the user data, in accordance with the transfer path assignment request;
setting, at the control apparatus, an IP priority used in the radio access network, based on the traffic class included in the transfer path assignment request, in accordance with a priority determination table for associating the traffic class with the IP priority;
transmitting, from the control apparatus to the base station, a radio channel setting request for requesting to set the radio channel, the radio channel setting request including the IP priority;
associating, at the base station, the IP priority included in the radio channel setting request with the radio channel;
transmitting the user data from the mobile station to the base station via the radio channel;
generating, at the base station, an IP packet based on the user data, and setting the IP priority to the IP packet, in accordance with association between the IP priority and the radio channel;
transmitting the IP packet generated in the base station from the base station to the control apparatus, in accordance with the IP priority, and
transmitting, from the control apparatus to the core network, the IP packet received from the base station, in accordance with the IP priority.

7 more elements

Dependencies are inferred from the claim text.

Description4,371 words

Summary984 words

#This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. P2002-342448, filed on Nov. 26, 2002; the entire contents of which are incorporated herein by reference.

#1. Field of the Invention

#The present invention relates to a radio access network system which includes a base station and a control apparatus (a radio network controller) and transfers IP packets including control data and user data in a network, a radio access method and a control apparatus.

Brief description of the drawings14 figures

#FIGS. 1A and 1B are explanatory views illustrating packet formats of conventional IP packets.

#FIG. 2A is an explanatory view illustrating an entire configuration of a radio access network system according to an embodiment.

#FIG. 2B is an explanatory view illustrating a data flow of processing during connection setting according to the embodiment.

Detailed description3,123 words

#A radio access network according to an embodiment of the present invention will be described in detail. FIG. 2A illustrates an entire configuration of the radio access network system according to the embodiment, FIG. 2B illustrates a data flow in the radio access network system according to the embodiment.

#As shown in FIG. 2A, the radio access network system according to the embodiment is configured with a mobile station 1, a base station 2, a control apparatus 3 and an SGSN (serving GPRS support node) 4.

#The radio access network system according to the embodiment transfers IP packets in a radio access network including a base station 2 and a control apparatus 3.

Facts

Application

10/720,155Filed 25 Nov 2003

Priority

JP 2002-34244826 Nov 2002

Published

US 2004/0105452 A13 Jun 2004

Granted

6 Sep 2011

Term ended

8 Sep 2026

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 1,018 days of adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification8 codes

H04W 40/02
Communication routing or communication path finding: communication route or path selection, e.g. power-based or shortest path routing
H04W 72/569
Of the information or information source or recipient: of the traffic information
H04W 88/08
Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices: access point devices
H04W 88/12
Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices: access point controller devices

Timeline

26 Nov 2002Priority claimedJP 2002-342448
25 Nov 2003Application filedUS 10/720,155
19 May 2004Assigned to Ntt Docomo, Inc.assignment of assignor's interest
3 Jun 2004PublishedUS 2004/0105452 A1
6 Sep 2011GrantedUS 8,014,348 B2
8 Sep 2026Term endedEstimated, includes 1,018 days of adjustment

Radio access network system, radio access method, and control apparatus

Life of this patent

Radio access network system, radio access method, and control apparatus

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims5

Description4,371 words

Drawings

Classification8 codes

Life of this patent

Description4,371 words