Samsung Electronics Co., Ltd.

Han-Kyung Lee

Ki-Back Kim

Jung-Shin Park

Sung-Man Kim

Jae-Jeong Shim

Nae-Hyun Lim

Chang-Yeon Kim

Yoon-Jeong Ha

Kwon-Young Kim

Hyung-Seok Ha

A network includes a Mobile Station (MS) for sending a Service Flow (SF) modification request message to a Base Station (BS) to modify an SF. The BS sends a path modification request message to a serving SF Authorization (SFA) when there is the information on the SF. The BS also sends an SF modification response message comprising a Confirmation Code 'Reject SF not found' to the MS when there is no information on the SF. The serving SFA sends a resource reservation request message to an anchor SFA when there is the information on the SF, and sends a path modification response message comprising a Failure Indication (FI) 'Requested Context Unavailable' to the BS when there is no information on the SF. The anchor SFA sends a resource reservation response message comprising the FI &#x2018;Requested Context Unavailable&#x2019; to the serving SFA when there is no information on the SF.

Apparatus and method for handling error for service flow modification a broadband wireless communication network

An apparatus and method for creating a data path for a broadcasting service in a cellular network is provided. In a method for creating a data path to provide a broadcasting service in a cellular network, a broadcast server transmits a session start request message to an Access Service Network-GateWay (ASN_GW) before transmission of Multicast and Broadcast Service (MBS) data, to request a multicast connection setup. The ASN_GW establishes a multicast connection between the broadcast server and the ASN_GW on the basis of information of the session start request message. The ASN_GW transmits a session start response message to the broadcast server in response to the session start request message, after establishment of the multicast connection between the broadcast server and the ASN_GW. The ASN_GW transmits a path registration request message to at least one base station associated with a broadcast zone, to request MBS data path establishment and air resource reservation. The base station establishes a multicast connection between the ASN_GW and the base station on the basis of information of the path registration request message. The base station transmits a path registration response message to the ASN_GW in response to the path registration request message, after establishment of the multicast connection between the ASN_GW and the base station.

Apparatus and method for creating data path for broadcasting service in cellular network

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Yongin-si, South Korea

Han-Kyung Lee