Abstract:
PROBLEM TO BE SOLVED: To provide a method and device for validly sequencing a data packet by a method which is comprehensible to a recipient of the data packet. SOLUTION: A method and device for re-sequencing a data packet received from a plurality of devices in a packet digital communication system are provided. A set of the data packet is received by a data packet sequencer. Each data packet contains an indicator of an originator of the data packet. The data packet sequencer stores the set of the data packet in an input buffer, preferably. The data packet sequencer retrieves a first data packet, and determines the originator of the first data packet, thereby rearranging the data packet. Before the data packet sequencer transmits the data packet not issued by a first originator, the data packet sequencer transmits all the data packets issued from the first originator of the first data packet.
Abstract:
PROBLEM TO BE SOLVED: To provide inter-system handoffs between an existing circuit wireless system and a packet system by an improved wireless network. SOLUTION: A packet wireless system is enhanced so as to provide translation between a circuit call model and a packet call model. A media gateway translates bearer traffic between formats used in each system. The media gateway, a media gateway control function and an associated call state control function cooperate to emulate the behavior of the circuit wireless system, so that when interoperating with a conventional circuit wireless system, the packet system appears to be another circuit wireless system. When necessary, the media gateway, the media gateway control function and the call state control function are more cooperated with each other in order to emulate the function of an anchor MSC of the circuit wireless.
Abstract:
The present invention provides a method and apparatus for re-sequencing data packets received from multiple devices in a packet-based digital communication system. A set of data packets is received by a data packet sequences. Each data packet includes an indicator of the originator of the data packet. The data packet sequences stores the set of data packets, preferably in an input buffer. The data packet sequences reorders the data packets by retrieving a first data packet and determining the originator of the first data packet. The data packet sequences then transmits all data packets that were originated by a first originator of the first data packet prior to transmitting data packets that were not originated by the first originator.
Abstract:
An improved wireless network provides intersystem handoffs between existing circuit wireless systems and packet systems. A packet wireless system is enhanced to provide translation between circuit and packet call models. A Media Gateway translates bearer traffic between formats used in each system. The Media Gateway, a Media Gateway Control Function, and an associated Call State Control Function, cooperate to emulate the behavior of a circuit wireless system, so that when interoperating with conventional circuit systems, the packet system appears to be another circuit wireless system. Where necessary, the Media Gateway, Media Gateway Control Function, and Call State Control Function further cooperate to emulate the functions of an anchor MSC of a circuit wireless system.
Abstract:
An improved wireless network provides intersystem handoffs between existing circuit wireless systems and packet systems. A packet wireless system is enhanced to provide translation between circuit and packet call models. A Media Gateway translates bearer traffic between formats used in each system. The Media Gateway, a Media Gateway Control Function, and an associated Call State Control Function, cooperate to emulate the behavior of a circuit wireless system, so that when interoperating with conventional circuit systems, the packet system appears to be another circuit wireless system. Where necessary, the Media Gateway, Media Gateway Control Function, and Call State Control Function further cooperate to emulate the functions of an anchor MSC of a circuit wireless system.
Abstract:
An improved wireless network provides intersystem handoffs between existing circuit wireless systems and packet systems. A packet wireless system is enhanced to provide translation between circuit and packet call models. A Media Gateway translates bearer traffic between formats used in each system. The Media Gateway, a Media Gateway Control Function, and an associated Call State Control Function, cooperate to emulate the behavior of a circuit wireless system, so that when interoperating with conventional circuit systems, the packet system appears to be another circuit wireless system. Where necessary, the Media Gateway, Media Gateway Control Function, and Call State Control Function further cooperate to emulate the functions of an anchor MSC of a circuit wireless system.
Abstract:
The present invention provides a method and apparatus for re-sequencing data packets received from multiple devices in a packet-based digital communication system. A set of data packets is received by a data packet sequencer. Each data packet includes an indicator of the originator of the data packet. The data packet sequencer stores the set of data packets, preferably in an input buffer. The data packet sequencer reorders the data packets by retrieving a first data packet and determining the originator of the first data packet. The data packet sequencer then transmits all data packets that were originated by a first originator of the first data packet prior to transmitting data packets that were not originated by the first originator.
Abstract:
An improved wireless network provides intersystem handoffs between existing circuit wireless systems and packet systems. A packet wireless system is enhanced to provide translation between circuit and packet call models. A Media Gateway translates bearer traffic between formats used in each system. The Media Gateway, a Media Gateway Control Function, and an associated Call State Control Function, cooperate to emulate the behavior of a circuit wireless system, so that when interoperating with conventional circuit systems, the packet system appears to be another circuit wireless system. Where necessary, the Media Gateway, Media Gateway Control Function, and Call State Control Function further cooperate to emulate the functions of an anchor MSC of a circuit wireless system.
Abstract:
A method of supporting access to a selected Internet Protocol (IP) multimedia application via an IP Multimedia Subsystem (IMS) is provided for a roaming mobile node (MN) - i.e., user equipment (UE) (10) - served by a wireless telecommunications system. The method includes: establishing a first IP tunnel (20) between the UE (10) and a local access gateway (30) of a visited network in which the UE (10) is roaming, the first tunnel (20) being anchored at the local access gateway (30); establishing a second IP tunnel (22') between the UE (10) and a home gateway (40') of a home network to which the UE (10) belongs, the second tunnel (22') being anchored at the home gateway (40'); receiving data packets at the local access gateway (30) for the UE (10); filtering the packets received at the local access gateway (30) to suitably classify corresponding traffic into one of a plurality of data flows (20a, 20b,... 20n) supported within the first tunnel (20) at varying Quality of Service (QoS) levels; receiving data packets at the home gateway (40') for the UE (10); and, filtering the packets received at the home gateway (40') to suitably classify corresponding traffic into one of a plurality of data flows (22a, 22b,... 22n) supported within the second tunnel (22') at varying QoS levels.
Abstract:
A method of supporting access to a selected Internet Protocol (IP) multimedia application via an IP Multimedia Subsystem (IMS) is provided for a roaming mobile node (MN) - i.e., user equipment (UE) (10) - served by a wireless telecommunications system. The method includes: establishing a first IP tunnel (20) between the UE (10) and a local access gateway (30) of a visited network in which the UE (10) is roaming, the first tunnel (20) being anchored at the local access gateway (30); establishing a second IP tunnel (22') between the UE (10) and a home gateway (40') of a home network to which the UE (10) belongs, the second tunnel (22') being anchored at the home gateway (40'); receiving data packets at the local access gateway (30) for the UE (10); filtering the packets received at the local access gateway (30) to suitably classify corresponding traffic into one of a plurality of data flows (20a, 20b,... 2On) supported within the first tunnel (20) at varying Quality of Service (QoS) levels; receiving data packets at the home gateway (40') for the UE (10); and, filtering the packets received at the home gateway (40') to suitably classify corresponding traffic into one of a plurality of data flows (22a, 22b,... 22n) supported within the second tunnel (22') at varying QoS levels.