Assignee: Ericsson AB

Location: Stockholm, SE
No. of patents: 180

Number	Title	Issue Date
8170026	Method and apparatus for virtual circuit routes A method and apparatus for virtual circuit routes is described. A method in a network element comprises associating a virtual circuit to a layer 3 next hop, the virtual circuit being associated with a layer 2 protocol specific logical circuit, receiving a packet on ...	05/01/2012
8166527	Optimized security association database management on home/foreign agent Techniques for security association management on a home and foreign agent are described. In one embodiment, in response to a first mobile network registration request from a mobile node, a remote authentication facility is accessed to retrieve a security associatio...	04/24/2012
8165012	Protection mechanisms for a communications network A method of path protection for a connection-oriented packet switched communications network is described using a protection hub in communication with a worker hub via a core protection path. Both the worker hub and the protection hub communicate with at least one p...	04/24/2012
8160445	Digital cross-connect A digital cross-connect (DXC) (10) comprises: a plurality of ports (30-100) for receiving/outputting signals and switching and switching means (20) for selectively cross-connecting signals applied to one port to one or more other ports. T...	04/17/2012
8155089	System and method of processing CDMA signals Methods and apparatus for performing finger de-spreading and MRC combining are provided. A large antenna buffer is used to buffer all the finger signals of the same user so that the receiver can do both de-spreading and MRC at the same time without buffering the de-...	04/10/2012
8149488	Method of operating a reconfigurable and integrable optical logic gate based on a single SOA An optical logic gate (10) comprising inputs (12) for optical signals on which to perform a chosen logical operation. An SOA (11) element receives such input signals to be piloted thereby in saturation and its output is connected to at least one...	04/03/2012
8146140	Mobile IP bulk registration revocation Techniques for Mobile IP bulk registration revocation are described herein. According to one embodiment, a first mobile agent of a mobile IP network sends a registration revocation message to a second mobile agent of the mobile IP network. The registration revocatio...	03/27/2012
8144698	Scalable data forwarding techniques in a switched network Scalable data forwarding techniques in a switched network are described herein. In one embodiment, an example of a process for forwarding data includes, in response to a first packet received from a first local node over a local area network (LAN) and destined to a ...	03/27/2012
8139649	Recursive filtering a video image using activity mapping A method of recursive filtering a video image includes determining a local variance σ2 in luminosity in the vicinity of a picture element on the image; making an estimate of a value of noise variance σr2; obtaining a surface for va...	03/20/2012
8134963	Method and system for reducing connection set-up time A method of connection setup in mobile wireless data communications systems is disclosed where the connection setup time is decreased for delay-sensitive communications sessions relative to the normal connection setup time for confidence-dependent communications ses...	03/13/2012
8130764	Dynamic binding of network services A method and apparatus that dynamically binds one or more network interfaces of a plurality of virtual network machines is described. The apparatus instantiates the plurality of virtual network machines, where the plurality of virtual network machines are virtually ...	03/06/2012
8126137	Vectored digital subscriber line system having modular vectoring arrangements The present invention relates to a vectoring chip unit in a DSL system connectable to a plurality of DSL ports of a DSL chip comprising means for receiving data from each of the plurality of DSL ports, means for performing pre-coding/cancellation in order to reduce ...	02/28/2012
8125993	Network element having a DHCP lease timer A network element modifying the DHCP lease timer is described. According to one embodiment, an exemplary method includes maintaining, at a network element, DHCP lease time for one or more clients and in response to a DHCP renewal request from a client, on behalf of ...	02/28/2012
8125912	Inverse multiplexing of digital data In ATM networks, digital data in ATM cells are sent to a destination node over more than one transmission link in round robin fashion. This is called inverse multiplexing. At connection start-up, the source node informs the destination node of the specific round rob...	02/28/2012
8112005	Optical receiver scheme with all-optical decision element A receiver scheme for optical signals in Return-to-zero (RZ) systems comprises a conventional receiver at the input of which is placed an all-optical decision element realized with nonlinear optical elements. This allows obtaining a substantial increase in performan...	02/07/2012
8072915	Common power control channel in a CDMA system and a system and method for using such a channel A CDMA communication system supports designated mode data bursts and contention-based transmissions on a reverse link common channel from a subscriber unit to a base station. When transmissions are scheduled and serviced in the designated mode data burst, collisions...	12/06/2011
8059567	Distributing mobile stations across carriers of plural frequency bands Distribution of mobile stations across carriers of multiple frequency bands is achieved by using either a static distribution mechanism or a dynamic distribution mechanism. With the static distribution mechanism, a combination of a redirection message and a channel ...	11/15/2011
8055127	Wavelength division multiplex optical ring network A wavelength division multiplex optical ring network comprises optical fibre (1-4) arranged in a ring configuration and a plurality of doped fibre optical amplifiers (17-20) arranged in the ring. The spectral response in the ring is confi...	11/08/2011
8050234	Walsh code management in a code division multiple access cellular wireless communication system A cellular wireless communication system and method of operation manages Walsh codes in order to ensure that sufficient Walsh codes are available to prevent call blocking and to support additional hand-off operations. In an initial operating condition, the cellular ...	11/01/2011
8045936	Receiver for receiving embedding OFDM in an CDMA systems Systems and methods of combining OFDM and CDMA signals are provided. An OFDM packet data channel is overlaid over CDMA transmissions. The channel is scheduled slotwise between multiple users. In some embodiments, there is a CDMA packet data channel which is schedule...	10/25/2011
8045547	Method and apparatus for routing and forwarding between virtual routers within a single network element A method and apparatus for routing and forwarding between virtual routers is described. A method in a single network element comprises peering a first virtual router to a second virtual router, wherein the first and second virtual routers have separate address space...	10/25/2011
8040919	Transmission method A transmission method in which a first signal frame, carrying a payload in a first part of the signal frame and second information in a second part of the signal frame, is transmitted intact between a signal source and a signal destination by copying the second info...	10/18/2011
8037299	Domain-less service selection A method and apparatus for providing domainless service selection (DLSS) are described. According to one embodiment of the invention, there is a service selection network element used to provide access of computing devices to a set of one or more services provided b...	10/11/2011
8036536	Optical transmitter, optical network and method for compensation of polarization mode dispersion An optical transmitter apparatus for use in an optical communications network has a polarization dithering unit, an optical transmitter unit, and a transmission fiber. The polarization dithering unit is connected in series between an output of the optical transmitte...	10/11/2011
8036526	Method and apparatus for restoration of optical ring network operating conditions after a fault is repaired A method and apparatus for restoration of operating conditions of a WDM optical ring network comprising a plurality of amplifiers linked together in a ring after a break or fault has occurred in the network. The method comprises in response to repair of the break or...	10/11/2011
8027310	Flexible mobile IP foreign agent architecture for enabling converged services A method and apparatus for flexible Mobile IP foreign agent architecture for enabling converged services are described herein. According to one embodiment of the invention, a packet is received over a circuit bound with a converged services domain of a network eleme...	09/27/2011
8025515	Systems and methods for connecting a circuit board with a chassis Systems and methods for connecting a circuit board, such as a circuit board of a fan tray, with a chassis are described herein. Systems and methods for floating, aligning, centering, grounding and blind-mating a connector set are also described herein. ...	09/27/2011
8023905	Method for embedding OFDM in CDMA systems Systems and methods of combining OFDM and CDMA signals are provided. An OFDM packet data channel is overlaid over CDMA transmissions. The channel is scheduled slotwise between multiple users. In some embodiments, there is a CDMA packet data channel which is schedule...	09/20/2011
8023405	Method for activation of preplanned circuits in telecommunications networks A method for activation of circuits in telecommunications networks comprises a first step in which circuits are preplanned in the network and local definition data are distributed to network members (NE) for connection of sections of the preplanned circuits. In a se...	09/20/2011
8018881	Admission control and policing in wireless packet data communication system A call flow is provided in a wireless communication system to enable quality of service (QoS) parameters to be retrieved and provided to a base station when a wireless device requests service. The QoS parameters may include or represent a QoS profile associated with...	09/13/2011
8014890	Method for manufacturing a high-frequency assembly In the manufacture of a high-frequency assembly, a plurality of components, at least one (12) of which is frequency-specific, are placed with respect to each other using a placing apparatus and are interconnected. In a specimen of the frequency-specific compo...	09/06/2011
8014683	Transmitter for an optical communication signal A transmitter for an optical RZ-DPSK communication signal comprises a source for an optical carrier, an electro-optical modulator which comprises at least one element having an optical path length adapted to be varied by an electrical driver signal for intensity mod...	09/06/2011
8014523	Key management The present invention relates to arrangements and methods for generating keys for cryptographic processing of communication between a first communication unit (200) and a second communication unit (300). The first communication unit (200) and se...	09/06/2011
8014395	Method and apparatus for processing labels Methods and apparatus for processing labels is described. An exemplary method includes allocating labels at a network device in accordance with a set of one or more ranges, and reflecting, in the set of ranges, labels allocated for label switching with peers of the ...	09/06/2011
7990876	Method for selection of a strategy for re-routing of circuits in a communication network and network with said method A method is described for identification in a communication network of a sequence of circuit movement steps therein to change with the movement of a single circuit at a time from an initial routing in which are satisfied a certain number of service demands to a feas...	08/02/2011
7987276	Dynamic modification of a subscriber connection In one embodiment, a method comprises receiving a request to modify a subscriber connection to a network element. The method also includes modifying attributes of the subscriber connection, within a memory of the network element, without disconnecting the subscriber...	07/26/2011
7986667	Forwarding data path optimization in a distributed environment for achieving micro-mobility A method and apparatus of updating a forwarding plane of a network element in response to receiving a mobility event is described. The network element receives a mobility message indicating a mobile node has coupled to a new access port associated with the network e...	07/26/2011
7979081	Method and system for distributed distance-based paging A distance-based paging system distributes the decision as to which base stations should send a page to a terminal. The Radio Network Controller (RNC) simply stores the location information and paging range (e.g., the route update radius) of the reference sector for...	07/12/2011
7965668	Method and system for priority-based state transition for high speed data transmission and wireless access networks Apparatus and methods are provided for transitioning wireless devices between a plurality of states having increasing resource intensity from a least resource intensive state to a most resource intensive second state. All power-on wireless devices are ranked. A resp...	06/21/2011
7961601	Lesser disruptive open shortest path first handling of bidirectional forwarding detection state changes A method and apparatus for processing link down events associated with links between adjacent nodes is described. A node receives link down events associated with a link fault protocol for a link between the node and a neighboring node. In response to receiving the ...	06/14/2011

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Assignee: Ericsson AB