Abstract: A mm wave radio communication mesh network comprises a wireless node apparatus comprising a plurality of wireless modems (103) and a configuration controller (307) arranged to perform a node configuration arranged to configure the wireless modems (103) as access point wireless modems or non-access point wireless modems. The configuration controller (307) determines a set of access point wireless modems that have no connection and control them to scan for access point beacons. It then controls a wireless modem that has detected an access point beacon to connect to the access point wireless modem transmitting the beacon. If the connection is successful, the configuration controller (307) proceeds to configure the wireless modem as a non-access point wireless modem and otherwise it is configured as an access point wireless modem.

Abstract: A mm wave radio communication mesh network comprises a wireless node apparatus comprising a plurality of wireless modems (103) and a configuration controller (307) arranged to perform a node configuration arranged to configure the wireless modems (103) as access point wireless modems or non-access point wireless modems. The configuration controller (307) controls a set of wireless modems to scan for access point beacons and determines a first wireless modem that has detected an access point beacon from a first target access point wireless modem. It then configures the first wireless modem as a non-access point wireless modem and controls it to connect to the first target access point modem. If the connection is successful, the configuration controller (307) proceeds to configure another wireless modem as an access point wireless modem.

Abstract: A communication system comprises an access point (203) communicating via a directional beam and a first and second wireless modem (111, 703) for establishing a first and respectively second mm wave radio communication link to the first access point (203). The first and second wireless modems (111, 703) are located on a vehicle (103) and employ electronically steerable beamforming directional antennas having a first main beams for establishing the radio communication links. A scheduler (801) schedules data of the communication over the first mm wave radio communication link and the second mm wave radio communication link in dependence on a link quality of at least one of the first mm wave radio communication link and the second mm wave radio communication link. The main beams may be formed in substantially the same direction.

Abstract: A method of mitigating start-of-packet interference in a millimetre waveband wireless mesh communications network which comprises a first plurality of network node devices each having a transceiver unit which includes a beamforming antenna device, and a second plurality of millimetre waveband wireless communications links each of which interconnects a respective pair of the transceiver units of the network node devices, the method comprising: allocating respective baseband centre frequencies to pairs of transceivers of the network node devices, which baseband centre frequencies are for use with respective communications links of the network, each such allocated baseband centre frequency being offset from at least one other allocated baseband centre frequency by a respective predetermined offset amount; and at a first transceiver of a selected pair of transceivers, encoding a data packet using an encoding signal having the baseband centre frequency allocated to the selected pair of transceivers, to generate an

Abstract: A communication system comprises an access point communicating via a directional beam and a first and second wireless modem for establishing a first and respectively second mm wave radio communication link to the first access point. The first and second wireless modems are located on a vehicle and employ electronically steerable beamforming directional antennas having a first main beams for establishing the radio communication links A proximity detector detects proximity of the first wireless modem to the first access point. A switch controller switches data of a data flow from the first mm wave radio communication link to the second mm wave radio communication link in response to the detection of the proximity of the first wireless modem to the first access point.

Abstract: A communication system supports communication between an end node (101) of a vehicle (103) and a remote correspondent node (105) via a fixed network (107) which comprises a plurality of wireless access points (109) with a directional antenna arrangement for mm wave radio communication using directional beams. A vehicle (103) comprises wireless modems (111, 113, 701, 703) employing electronically steerable beamforming directional antennas for establishing mm wave radio communication links to the access points (109). The air interface communication may use a frequency channels selected from a set of available frequency channels and using a transmission scheme from a set of available transmission schemes. The access points (109) transmit a first beacon data set in a frequency channel using a common transmission scheme and a second beacon data set using a different transmission scheme which is also used for data communication.

Abstract: A communication system for supporting communication for a vehicle (103) includes a plurality of fixed network segments. Communication from access points (109) to wireless modems (111) uses mm wave radio communication links. The fixed network and vehicle comprise segment multipath controllers (1007, 1101) coupled to the wireless modems or access points (109) for multipath communication with each other. Different segments have different segment multipath controllers (1007). Root multipath controllers (1103) are included having multipath connections coupled to the plurality of segment multipath controllers (1101) and being arranged to perform multipath communication with a complementary root multipath controller (1009) of the fixed network (107). The hierarchical multipath controller approach may provide efficient adaptation to network configuration changes caused by vehicle movement.

Abstract: A communication system for supporting communication for a vehicle (103) includes a plurality of fixed network segments. Communication from access points (109) to wireless modems (111) uses mm wave radio communication links. The fixed network and vehicle comprise segment multipath controllers (1007, 1101) coupled to the wireless modems or access points (109) for multipath communication with each other. Different segments have different segment multipath controllers (1007). Root multipath controllers (1103) are included having multipath connections coupled to the plurality of segment multipath controllers (1101) and being arranged to perform multipath communication with a complementary root multipath controller (1009) of the fixed network (107). The hierarchical multipath controller approach may provide efficient adaptation to network configuration changes caused by vehicle movement.

Abstract: A communication system supports communication between an end node of a vehicle and a remote correspondent node via a fixed network which comprises a plurality of wireless access points with a directional antenna arrangement for mm wave radio communication using directional beams. A vehicle comprises wireless modems employing electronically steerable beamforming directional antennas for establishing mm wave radio communication links to the access points. The access points communicate in a frequency channel alternately selected from one of two disjoint sets and a first wireless modem (111) is constrained to communicate using a frequency channel from the first set and a second wireless modem (701) is constrained to communicate using a frequency channel from the first set. A data session controller (705) communicates data of the data session over links provided by the first wireless modem and the second wireless modem.

Abstract: A communication system comprises an access point communicating via a directional beam and a first and second wireless modem for establishing a first and respectively second mm wave radio communication link to the first access point. The first and second wireless modems are located on a vehicle and employ electronically steerable beamforming directional antennas having a first main beams for establishing the radio communication links A proximity detector detects proximity of the first wireless modem to the first access point. A switch controller switches data of a data flow from the first mm wave radio communication link to the second mm wave radio communication link in response to the detection of the proximity of the first wireless modem to the first access point.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.