초록 ▼

When a data transferring operation ends in failure because a call was released in the midst of data transfer or the like, the data should be transferred again. In this data re-transfer, it is desirable to reduce the time spent for data transfer regardless of the functions provided by a terminal side

When a data transferring operation ends in failure because a call was released in the midst of data transfer or the like, the data should be transferred again. In this data re-transfer, it is desirable to reduce the time spent for data transfer regardless of the functions provided by a terminal side. For this purpose, an order number is assigned to a packet containing data before it is sent. This number is stored in a storage section. Further, when a packet is confirmed as to its receipt by a transmission receiver, the order number of the packet is also stored. For a resending operation of the same data, a transmitted packet and an untransmitted packet can be discriminated from each other through comparison between order numbers of a sent packet and a transmitted packet. Based on the discrimination result, only untransmitted packets are subjected to a resending operation.

대표청구항 ▼

When a data transferring operation ends in failure because a call was released in the midst of data transfer or the like, the data should be transferred again. In this data re-transfer, it is desirable to reduce the time spent for data transfer regardless of the functions provided by a terminal side

When a data transferring operation ends in failure because a call was released in the midst of data transfer or the like, the data should be transferred again. In this data re-transfer, it is desirable to reduce the time spent for data transfer regardless of the functions provided by a terminal side. For this purpose, an order number is assigned to a packet containing data before it is sent. This number is stored in a storage section. Further, when a packet is confirmed as to its receipt by a transmission receiver, the order number of the packet is also stored. For a resending operation of the same data, a transmitted packet and an untransmitted packet can be discriminated from each other through comparison between order numbers of a sent packet and a transmitted packet. Based on the discrimination result, only untransmitted packets are subjected to a resending operation. teway device comprises a central processing unit, an external network interface, an internal network interface, and a positioning unit each coupled to the central processing unit. The gateway device further comprises a persistent memory, also coupled to the central processing unit, wherein the persistent memory is configured to store statistical data pertaining to content received through the external network interface as well as geographic location information. The gateway device is configured to collecting statistical geographic location information. According to an embodiment, a method for collecting the statistical geographic location information comprises: storing geographic location information in a persistent memory dedicated to a positioning unit, sampling incoming data passing between the external network interface and the internal network interface of the gateway device, recording the sampled incoming data in a persistent data table, receiving a request, the request comprising a demand for information contained in the persistent data table, and in response to the request, transmitting information contained in the persistent data table together with geographic location information.