摘要:
A pass-through packet determination unit (112) of an anchor GW 100A controls whether or not to transfer a Layer 3 packet arriving from an external network (20) to a downlink channel set up with a mobile terminal (700) based on a transfer policy. Further, a transfer policy control unit (111) changes the transfer policy to enable transfer of a multicast packet or a broadcast packet to the mobile terminal (700) by the downlink channel in response to receiving from the mobile terminal (700) a Layer 3 packet preliminarily specified as a trigger to start transfer of a multicast packet or a broadcast packet to the mobile terminal (700) by the downlink channel.
摘要:
An access GW (201) receives, from a mobility management node (300), a transmission-path control signal for changing a route of only part of a data packet flow that pertains to a mobile terminal (400) and is originally relayed through the access GW (201) and a first mobility anchor (100A). In response to receiving the transmission-path control signal, the access GW (201) establishes a logical transmission path with a second mobility anchor (100B) for transferring the part of the data packet flow, and transfers the part of the packet flow to the second mobility anchor (100B) and also transfers a remaining part of the packet flow to the first mobility anchor (100A) by distinguishing a data packet received from the mobile terminal (400). As a result, for example, a mobility anchor can be switched for a part of data packets relating to the mobile terminal (400) under the initiative of the mobility management node (300).
摘要:
Provided is a home network system in which an appropriate mobility anchor is allocated for a mobile node and the number of mobility anchors can be reduced. A subscriber information accumulation server (14) accumulates first communication load prediction data for each time of a mobile node (32). An anchor information accumulation server (15) accumulates second communication load prediction load for each time of each mobility anchor (11). When “a mobility anchor allocation request” is transmitted from the mobile node (32) to an anchor allocation server (13), the anchor allocation server (13) adds the first communication load prediction data and the second communication load prediction load data so as to obtain third communication load prediction data. Among a plurality of mobility anchors (11), a mobility anchor in which the third communication load prediction data is not greater than the load upper limit value at all the times and the maximum value of the second communication load prediction data is minimum is selected and allocated.
摘要:
A communication system comprises a path management server that configures forwarding path information that is configured by arranging link IDs for identifying communication interfaces provided in respective forwarding nodes in a forwarding path of a data transfer network or links extending between said respective forwarding nodes and neighboring nodes thereof. For packets to which is added a header containing the forwarding path information, a forwarding node performs packet forwarding processing in accordance with the forwarding path information.
摘要:
A communication system includes transfer node 200 receiving a registration request signal from mobile node 100 and server 300 receiving the registration request signal from transfer node 200. Transfer node 200 determines, depending on the type of a transmission trigger for the registration request signal occurred, whether or not the number of mobile nodes which will be registered or which will have registration expiry time postponed are a plurality. If the plurality of mobile nodes are not to be processed, transfer node 200 transmits a registration request signal for one mobile node to server 300. If the plurality of mobile nodes are to be processed, transfer node 200 transmits an aggregation registration request signal concerning the plurality of mobile nodes, to server 300. Server 300 executes a process of registering or postponing the mobile node or the plurality of mobile nodes according to signal received from transfer node 200.
摘要:
The object of the present invention is to provide a mobile terminal management system in which a mobile terminal can rapidly decide a PMIP operation or CMIP operation in accordance with the policy of a network administrator. According to the present invention, a network notifies a mobile terminal whether or not the mobile terminal is operable with the PMIP function. Moreover, the mobile terminal of the present invention transmits, to the network, notification saying that a use request for CMIP function has been stored in accordance with the policy of a terminal side, such as user setting or service contents, upon connection or hand-over to the access network.
摘要:
An image encoding apparatus includes a quantization control section that supplies a rounded Q-scale to a quantization section for quantizing each macroblock according to the rounded Q-scale. A Q-scale is generated for each macroblock based on the amount of generated codes produced by encoding. The Q-scale is rounded within a set range by a rounding control section. The rounded Q-scale is smaller in amount than the Q-scale. Since the same Q-scale values will continue in succession, these can be omitted from a stream, allowing the reduced amount of quantization information and the increased amount of information allocated to images.
摘要:
An image encoding apparatus includes a quantization control section that supplies a rounded Q-scale to a quantization section for quantizing each macroblock according to the rounded Q-scale. A Q-scale is generated for each macroblock based on the amount of generated codes produced by encoding. The Q-scale is rounded within a set range by a rounding control section. The rounded Q-scale is smaller in amount than the Q-scale. Since the same Q-scale values will continue in succession, these can be omitted from a stream, allowing the reduced amount of quantization information and the increased amount of information allocated to images.
摘要:
An access gateway (GW) receives, from a mobility management node, a transmission-path control signal for changing a route of only part of a data packet flow that pertains to a mobile terminal and is originally relayed through the access GW and a first mobility anchor. In response to receiving the transmission-path control signal, the access GW establishes a logical transmission path with a second mobility anchor for transferring the part of the data packet flow, and transfers the part of the packet flow to the second mobility anchor and also transfers a remaining part of the packet flow to the first mobility anchor by distinguishing a data packet received from the mobile terminal.
摘要:
A communication system comprises: a path management server that generates a plurality of forwarding path information items each includes a sequence of identifiers, each of which identifies a communication interface provided in each of a plurality of forwarding nodes on a forwarding path in a data forwarding network or a link established between the forwarding node and a neighboring node thereof; and a forwarding node that, in accordance with at least one of the plurality of forwarding path information items, executes a packet forwarding processing of a packet with a header including the plurality of forwarding path information items.