Abstract: A method (600) for use in a wireless communications system (100) in which there is at least a first node (110) which controls the traffic to and from user terminals (130, 140) in a cell (120) within the system, so that there is downlink traffic in the system. The first node (110) transmits downlink traffic in radio frames, each of which comprises sub-frames. The first node (110) performs measurements on pre-defined system indicators in at least the first cell (120), and based on the results of the measurements, the first node is allowed to autonomously decide (615) to vary the number of available down link sub-frames used for down link traffic in the down link radio frames and also to vary (620) the content of the down link sub frames which are used, the decision being valid (625) for a time which is specified by the first node (110).

Abstract: A distributed Internet Protocol communications network comprises a central control system comprising control processing means and at least one access point remote from the central control system for providing access to the packet based communications network. Under normal operating conditions the at least one access point is controlled by the control processing means. The network also comprises an emergency processing distinct from the central control system for controlling the at least one access point when there is a failure in the control processing means control of the at least one access point.

Abstract: An approach is provided for fault detection and notification for a composite transport group (CTG). A component link of a CTG associated with a label switched path (LSP) is monitored. A fault is detected in the component link. It is determined whether traffic of the LSP can be transparently rerouted to another component link of the CTG based on resource availability of the other component link. The traffic is transparently rerouted to the other component link if resources are available. An upstream label switched node is notified if resources are unavailable.

Abstract: A system, method, and Soft Switch for maintaining a current user dial plan in an Access Gateway. When an H.248 control link is established between the Access Gateway and the Soft Switch, the Soft Switch downloads the current dial plan to the Access Gateway. The downloaded information includes termination IDs and Directory Numbers/Subscriber Numbers, DN/SNBs, for all of the users connected to the Access Gateway. Whenever the Soft Switch receives changes to the dial plan, the Soft Switch updates the user dial plan in the Access Gateway.

Abstract: An OCDMA transmission arrangement involves encoding both first and second nominally orthogonal polarization signals with a same long code, and transmitting the long-encoded first and second nominally orthogonal polarization signals from respective first and second transmission sources to at least one destination. A corresponding OCDMA demodulating arrangement demodulates the first and second nominally orthogonal polarization signals that were transmitted from respective first and second transmission sources after having been encoded with the same long code. The demodulation arrangement involves receiving the encoded first and second nominally orthogonal polarization signals, and applying the same long code to the received encoded first and second nominally orthogonal polarization signals.

Abstract: There is provided a method of determining a discontinuous reception and/or transmission cycle length, the method comprising determining information relevant to the cycle length from a high layer in a protocol stack; providing the information to a lower layer in the protocol stack; and in the lower layer of the protocol stack, determining the cycle length from the information.

Abstract: A wireless communication network automatically tests itself for sleeping cells. This is done by designing the base stations to regularly act as a terminal, contact its neighboring base stations and as a mobile perform a set of typical traffic cases. From the outcome of the traffic cases the probing base station detects neighboring base stations that cannot carry traffic. The information about sleeping cells is subsequently communicated from the base station to the operation and maintenance system.

Abstract: Method and apparatus for selecting an RS mode in a BWA communication system are provided. In a method for a BS to select an RS mode in a BWA communication system, bidding prices are received from a set of RSs covered by the BS. The winner RS of at least one or more auctions is determined on the basis of the bidding values and the interference information of the RS set. The winner RS is set to operate in an active mode.

Abstract: Cell scanning operations are enhanced making them more time and power efficient. A base station communicates with mobile radios in a cellular communication system. The base station transmits in a cell a known symbol sequence over a broadcast channel to permit mobiles to detect and synchronize to the base station. It transmits a time indicator indicating when the base station will transmit service information from which a mobile may determine whether the base station can provide a desired communications service. After a time period associated with the time indicator, the base station transmits the service information. A mobile radio in or near the cell scans for and detects the broadcast signal. A decoder in the mobile decodes the broadcast signal and detects a time period associated with receiving the broadcast information. Based on the time period, the decoder halts further decoding of the broadcast signal.

Abstract: A system and method of managing multicast key distribution that includes associating a multicast address with each internal node of the key tree, wherein the key tree is created based on the last hop topology.

Abstract: One or more relay stations may be employed along a wireless communication access path between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add scheduling information to the PDUs before they are delivered to the downstream intermediate relay stations or egress stations. The scheduling information is used by the downstream stations to schedule the PDUs for further delivery. The scheduling information may also be used by the egress station to schedule the PDUs for delivery. The scheduling information added to the PDU by the ingress station bears on a QoS class associated with the PDU, a deadline for the egress station to deliver the PDU, or a combination thereof.

Abstract: Several adaptive techniques are described to combat interference in multiple-input multiple-output (MIMO) systems. In addition to adaptive frequency selection, interference suppression techniques for a selected carrier frequency are presented. The interference suppression technique can be adaptively selected based on the availability and quality of channel state information (CSI) and interference statistics. Techniques to estimate interference statistics are also presented. Interference mitigation techniques are also presented for automatic gain control (AGC), intermittent interference, and interference caused to other networks.

Abstract: To prevent, in using a multicast DA in an OAM frame, an increase in the network bandwidth usage and in the load of node processing and a degradation of the network reliability caused by a frame being transmitted to all routes in a broadcast domain. A MAC address and other basic frame information and the MEGID are associated with each other, and the MEGID information is added to the OAM frame, and these information are transmitted from an edge node serving as an end point of an ME. In a relay node of the ME, a route control table used for OAM frame control is provided, and a filter is generated by snooping of the OAM frame. Furthermore, when the relay node does not support the OAM function, the MEGID is denoted by a VLAN tag and the route control is made using the snooping function of each VLAN tag.

Abstract: An IP device (for example, network cameras 3a, 3b, and 3c) connectable to a router (for example, a router 2) makes a request to the router for assignment of a port number when a predetermined operation is performed, and notifies a management server 6 connected to a wide area network of address data containing an assigned port number when the port number is assigned from the router, wherein address data containing the port number can be registered in the management server 6 on the wide area network, so that, even when access is made from the terminal 4 on the wide area network side with a port number that is locally updated, access is made possible by transmitting address data of the IP device to the terminal 4.

Abstract: A method and apparatus are provided for allocating code resources to ACK/NACK channel indexes, when UEs need ACK/NACK transmission in a wireless communication system in which a predetermined number of orthogonal cover Walsh codes is selected from among available orthogonal cover Walsh codes, at least one subset is formed, having the selected orthogonal cover Walsh codes arranged in an ascending order of cross interference, subsets are selected for use in first and second slots of a subframe, and the orthogonal cover Walsh codes of the subset selected for each slot and ZC sequence cyclic shift values are allocated to the ACK/NACK channel indexes.

Abstract: The present invention proposes a proportional fairness scheduler used in a base station, which is applicable to a high mobility environment, the scheduler comprising: a correction factor estimator which, for each user equipment in a serving cell of the base station, estimates a correction factor for an instantaneous transmission rate for a next frame according to a statistical result on changes in a channel quality in a current frame; a metric calculator which, for each user equipment in the serving cell of the base station, calculates a metric based on the instantaneous transmission rate for the user equipment, the estimated correction factor and a history throughput recorded for the user equipment; and a transmission opportunity granter which grants a transmission opportunity in the next frame to a user equipment having the optimal metric out of all the user equipments. Also, the present invention proposes a proportional fairness is scheduling method used in a base station.

Abstract: An apparatus and associated methods to improve diversity gain while preserving channel throughput in a multicarrier communication channel are generally presented.

Abstract: A method of setting radio access capability for a mobile device capable of a plurality of radio access technologies includes utilizing a first one of the radio access technologies to send subscribing information of the mobile device to a network, receiving a reject message corresponding to the subscribing information from the network, selecting a second radio access technology from the plurality of radio access technologies, and sending the subscribing information according to the second radio access technology.

Abstract: A method of transmitting data in a wireless communication system includes allocating persistent resources, monitoring a control channel according to the persistent resources so as to find a scheduling grant, the scheduling grant comprising information on uplink radio resources and transmitting data using the uplink radio resources by overriding the persistent resources when the scheduling grant on the control channel is found.

Abstract: A system and method are provided for communicating data over a network. In some embodiments relating to data transmission, data is divided into a plurality of portions, such that the portions may be transmitted utilizing a plurality of different types of data connections. In other embodiments relating to data receipt, a plurality of portions of data is received utilizing a plurality of different types of data connections, after which the portions may be reassembled.