초록 ▼

A method, system and article of manufacture for exchanging data between an asynchronous network and a synchronous network is presented. Data is exchanged between the networks in a sequence of time frames which are partitioned into downlink, uplink and contention periods. These downlink, uplink and c

A method, system and article of manufacture for exchanging data between an asynchronous network and a synchronous network is presented. Data is exchanged between the networks in a sequence of time frames which are partitioned into downlink, uplink and contention periods. These downlink, uplink and contention periods are further divided into time slots, each of which carries either data or control cells between the networks. Cells of data are allocated to the time slots according to their cell deadlines which are proportional to the transmission delay of the network connection over which the cells are to be carried. This cell allocation is then stored in a slot map and communicated to all nodes within the networks in order to facilitate the data transmission.

대표청구항 ▼

[ What is claimed is:] [1.] A method comprising the steps of:defining a sequence of time frames for exchanging data between nodes in an asynchronous network and nodes in a synchronous network;dividing each of the defined time frames into a plurality of time slots;requesting time slots within a time

[ What is claimed is:] [1.] A method comprising the steps of:defining a sequence of time frames for exchanging data between nodes in an asynchronous network and nodes in a synchronous network;dividing each of the defined time frames into a plurality of time slots;requesting time slots within a time frame for carrying data cells over connections between the synchronous and asynchronous networks;allocating slots within a time frame to the requests for time slots according to cell deadlines which are proportional to a transmission delay of the connection over which the data cells are to be carried, said allocation proceeding in order of a connection priority and continuing until one of an exhaustion of all requests for time slots and an exhaustion of all time slots within the time frame occurs;partitioning each time frame into a down period for contention-free downlink transmission of data from the asynchronous network to the synchronous network,an up period for contention-free uplink transmission of data from the synchronous network to the asynchronous network, anda contention period for contention-based uplink transmission of data from the synchronous network to the asynchronous network;generating slot maps describing the partitioning of time frames into up, down, and contention periods and describing the allocation of time slots within the time frames; andexchanging data between the synchronous and asynchronous networks in time frames according to each time frame's slot map.