# US 2013/0155937 A1 · Mobile communication system, mobile station apparatus, home base station apparatus, and communication method

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- Number: US 2013/0155937 A1
- Document ID: US20130155937A1
- Status: Published application
- Kind: A1
- Application number: 13/818,558
- Filed: 2011-08-23
- Published: 2013-06-20
- Earliest claimed: 2010-08-23
- Assignees: Sharp Kabushiki Kaisha
- Inventors: Masafumi Aramoto
- Web page: https://patentgrep.com/patent/US20130155937A1

## CPC

- H04W 4/08: User group management
- H04L 12/2838: {Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths (adaptations of television systems for transmission by electric cable for domestic distribution H04N7/106; hybrid transport H04L12/6418; home network arrangements specially adapted for distribution of digital video signals H04N7/24)}
- H04W 8/082: {for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents}
- H04W 76/40: for selective distribution or broadcast
- H04W 8/186: {Processing of subscriber group data}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A mobile station apparatus has established a first bearer that communicates with a home network and a second bearer that communicates with a core network. In the transmission of a multicast join request, the mobile station apparatus transmits the multicast join request by selecting the first bearer if the multicast join request is addressed to the home network, or by selecting the second bearer if the multicast join request is addressed to the core network. In this way, a mobile communication system is provided where the mobile station apparatus connected to a home base station apparatus determines whether a multicast group is based on a Local IP Access and then transmits the multicast join request, and the home base station apparatus appropriately establishes a multicast session to the home network or the core network in response to a determination of the mobile station apparatus.

## Claims

### Claim 1

A mobile communication system comprising a home network and a core network connected to each other via an external network, the home network including a home base station apparatus having a mobile station apparatus connected thereto, and the core network including a position management apparatus and an access control apparatus connected thereto,
wherein the mobile station apparatus establishes a first bearer that communicates with the home network and a second bearer that communicates with the core network,
and in the transmission of a multicast join request, the mobile station apparatus transmits the multicast join request by selecting the first bearer if the multicast join request is addressed to the home network, or by selecting the second bearer if the multicast join request is addressed to the core network.

### Claim 2 (depends on 1)

The mobile communication system according to claim 1, wherein the mobile station apparatus comprises multicast address storage means that stores a multicast address serving as an address for the multicast join request addressed to the home network, and
wherein in the transmission of the multicast join request, the mobile station apparatus transmits the multicast join request by selecting the first bearer if the multicast address contained in the multicast join request is stored on the multicast address storage means.

### Claim 3 (depends on 1)

The mobile communication system according to claim 1, wherein the home base station apparatus transmits to the core network the multicast join request received via the second bearer.

### Claim 4

A mobile communication system comprising a home network and a core network connected to each other via an external network, the home network including a home base station apparatus having a mobile station apparatus connected thereto, and the core network including a position management apparatus and an access control apparatus connected thereto,
wherein the mobile station apparatus establishes a first bearer that communicates with the home network and a second bearer that communicates with the core network,
wherein upon receiving a packet via the first bearer from the mobile station apparatus, the home base station apparatus determines whether the packet is a multicast join request, and
wherein if the packet is the multicast join request, the home base station apparatus executes a join procedure to a multicast group in the home network.

### Claim 5

A mobile station apparatus connected to a mobile communication system including a home network and a core network connected to each other via an external network, the home network including a home base station apparatus having the mobile station apparatus connected thereto, and the core network including a position management apparatus and an access control apparatus connected thereto,
wherein the mobile station apparatus establishes a first bearer that communicates with the home network and a second bearer that communicates with the core network,
and in the transmission of a multicast join request, the mobile station apparatus transmits the multicast join request by selecting the first bearer if the multicast join request is addressed to the home network, or by selecting the second bearer if the multicast join request is addressed to the core network.

### Claim 6

A home base station apparatus connected to a mobile communication system including a home network and a core network connected to each other via an external network, the home network including the home base station apparatus having a mobile station apparatus connected thereto, and the core network including a position management apparatus and an access control apparatus connected thereto,
wherein the mobile station apparatus has established a first bearer that communicates with the home network and a second bearer that communicates with the core network, and
wherein upon receiving a packet via the first bearer from the mobile station apparatus, the home base station apparatus determines whether the packet is a multicast join request, and
wherein if the packet is the multicast join request, the home base station apparatus executes a join procedure to a multicast group in the home network.

### Claim 7

A communication method of a mobile communication system comprising a home network and a core network connected to each other via an external network, the home network including a home base station apparatus having a mobile station apparatus connected thereto, and the core network including a position management apparatus and an access control apparatus connected thereto,
wherein the mobile station apparatus has established a first bearer that communicates with the home network and a second bearer that communicates with the core network,
and in the transmission of a multicast join request, the mobile station apparatus transmits the multicast join request by selecting the first bearer if the multicast join request is addressed to the home network, or by selecting the second bearer if the multicast join request is addressed to the core network.

### Claim 8 (depends on 2)

The mobile communication system according to claim 2, wherein the home base station apparatus transmits to the core network the multicast join request received via the second bearer.