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Telefonaktiebolaget L M Ericsson Patents
Assignee:
Telefonaktiebolaget L M Ericsson
Address:
publ) (Stockholm, SE
No. of patents:
4882
Patents:




Patent Number Title Of Patent Date Issued
7546459 GSM-like and UMTS-like authentication in a CDMA2000 network environment June 9, 2009
An authentication server (e.g., AAA server) is described herein which is located in a CDMA2000 network and used to authenticate a user terminal that is connected to a non-CDMA2000 network. The authentication server receives an access request for authenticating the user terminal connected
7546376 Media binding to coordinate quality of service requirements for media flows in a multimedia sess June 9, 2009
Using session signaling, a multimedia session with plural media data streams is initiated between the mobile terminal and a remote host coupled to a packet data network. The mobile terminal is coupled to the packet data network and to a multimedia system that provides multimedia sess
7546136 Variable transmit power control strategies for high-speed downlink packet access systems June 9, 2009
In communication systems that send transmit power control (TPC) commands in one direction so that only enough transmit power is used to maintain sufficient quality in the opposite direction, the TPC commands can be used to obtain information about the quality of the opposite-direction
7546113 Transmission of call detail records in a telecommunications system June 9, 2009
A method of routing Call Detail Records (CDRs) for a subscriber from a foreign network to a home network while the subscriber is roaming in the foreign network. The method comprises transferring from the home network to the foreign network during registration of the subscriber with an
7546086 Ad-hoc messaging between wireless devices June 9, 2009
A message is communicated from a first short-range transceiver device to other short-range transceiver devices by determining a set of identifiers of other short-range transceiver devices known by the short-range transceiver device to be within direct communication range of the first
7545893 Single antenna interference cancellation via complement subspace projection in spatial-temporal June 9, 2009
Interference rejection in a wireless communication system involves determining a complement spatial-temporal signal subspace that is complement to a spatial-temporal signal subspace of an interference signal included in a received signal. The received signal is projected onto the com
7545866 Dual loop signal quality based link adaptation June 9, 2009
A communications link is adapted based on a quality estimate for a signal transmitted via the communications link. The method comprises receiving and demodulating the transmitted signal, assessing the demodulated signal to derive a first estimate for the signal quality that is to be used
7545765 Multi-user diversity forwarding June 9, 2009
A higher degree of freedom in the forwarding process can be obtained by investigating which destinations and/or flows that are represented in a transmitting node and selecting relay direction through a wise choice of destination and/or flow. In effect, the forwarding algorithm jointly
7545646 Cooling assembly June 9, 2009
A cooling assembly and method of cooling a heat-generating electronic component on a circuit board. A heat collector collects heat from the electronic component. A heat pipe transfers the heat to a location remote from the electronic component. A heat sink is mounted to the circuit b
7542780 Method, apparatus and arrangement in a telecommunications network for providing control over and June 2, 2009
A PBX (10) is connected to a mobile telephony network (40) via a PSTN (20) and via a LAN (90) and data network (30). A mobile telephone (50) served by the mobile network, has a separate data channel (100). The invention describes a way to integrate mobile telephones as extensions of the
7542447 Pool of functional server nodes in a packet data network and method of transferring a mobile ter June 2, 2009
A pool of functional server nodes in a packet data network, and method of transferring a given mobile terminal from a current functional server node to a target functional server node in the pool. An interface enables each functional server node to control any, or a number of, radio netw
7542443 Receive window updates in communication systems June 2, 2009
Keeping track of potential receive window positions in a communication system can prevent the receive window from moving from the proper potential positions, thereby reducing the probability of incorrect positions of the receive window. For example, a receive window can be updated by
7539515 Method and arrangement relating to communications network May 26, 2009
The present invention relates to a method and arrangement for downlink power adjustment in a base station (210, 310, 610) comprising at least two similar hardware units: a first unit (231, 316a, 616a) and a second unit (232, 316b, 616b), in a communications network when moving a reso
7539182 Signalling in a telecommunications network May 26, 2009
A method of monitoring information associated with a given termination of a Context defined for a Media Gateway (MG) of a telecommunications network. The method comprises specifying an additional Topology Descriptor to define the relationship between a monitoring termination and a mo
7539180 Association of charging between communication systems May 26, 2009
A method of enabling charging information generated within a GPRS access network 4 to be associated with charging information generated within an IP Multimedia Core Network Subsystem, IMSS, the charging information relating to a multimedia call facilitated by the IMSS and carried by the
7539161 Virtual cell network May 26, 2009
A virtual network is created by providing antennas controlled by the same base station with control signals of different virtual base stations. A virtual network controller comprised in the base station is arranged for performing handovers between sets of physical channels of the differe
7538704 Direct RF D-to-A conversion May 26, 2009
A modulator described herein provides digital modulation and direct digital-to-analog conversion capable of achieving 12-bit resolution or higher for high frequency signals. The modulator comprises a digital modulator, conversion circuit, and multiplexer. The digital modulator genera
7536181 Platform system for mobile terminals May 19, 2009
A platform system for a mobile terminal for a wireless telecommunications system. The platform system comprises a mobile terminal platform assembly including a software services component having a plurality functional software units, a hardware component having a plurality of hardware un
7536158 Impairment correlation estimation in a spread spectrum system May 19, 2009
A method and apparatus derives an impairment correlation matrix to process signals received at a wireless receiver over multiple paths of a multi-path channel. The receiver includes first and second impairment correlation estimators for estimating first and second impairment correlat
7535870 Ip mobility May 19, 2009
A method of forwarding IP packets, sent to an old care-of-address of a mobile node, to the mobile node following a handover of the mobile node from a first old access router to a second new access router. The method comprises, prior to completion of said handover, providing said first
7535304 Amplifier coupling on a reduced area May 19, 2009
The invention discloses an amplifier (200, 400, 500) coupling comprising a first (230), a second (240), a third (250) and a fourth (260) transistor, additionally comprising a signal input port (220) and a signal output port (210, 410). The input port of the amplifier is connected to the
7535298 Arrangement and a method relating to signal predistortion May 19, 2009
The present invention relates to a predistortion signal amplifier arrangement comprising digital predistortion means for predistortion of an input signal, a non-linear power amplifier, a predistortion control arrangement comprising error estimation means for estimating the error prod
7535094 Substrate structure, a method and an arrangement for producing such substrate structure May 19, 2009
The present invention relates to a substrate structure comprising at least two substrate layers extending in substantially parallel planes, which substrate layers are (Z-)interconnected in a direction substantially perpendicular to said planes. It comprises at least one adhesive film
7533164 Method and system for enabling connections into networks with local address realms May 12, 2009
The invention generally concerns the issue of providing connectivity between two different address realms, generally referred to as an inside realm and an outside realm, by establishing connections through an intermediate gateway. The gateway normally has a number of outside-realm ga
7529554 Subtractive multipath delay detection May 5, 2009
In a RAKE receiver delays associated with multipath signals are determined by subtracting power values associated with sidelobes of a peak value for each of the multipath signals. The determination can be performed in two stages, in the first stage the determination of the delays is made
7529250 Adaptive ethernet switch system and method May 5, 2009
The invention relates to switch based aggregation system, method and computer program product for providing Quality of Service (QoS) to a layer 2 configured network comprising a connection oriented switching means connected to a Wide Area Network (WAN). The system comprises an Adapti
7529226 Bearer setup for a multimedia service May 5, 2009
A method of controlling the establishment of a packet switched bearer or bearers for carrying multimedia information between two or more user terminals during a circuit switched voice call, the method comprising at setup of or during the voice call, predicting at one of the user term
7529215 Encapsulation of independent transmissions over internal interface of distributed radio base sta May 5, 2009
A distributed radio base station (20) comprises a radio equipment controller (REC) (22) situated at a main site (23) and a radio equipment (RE) (24) situated at a remote site (25). A remote unit (102, 104, 106, 108, 110, 124) configured to engage in direct communications with the rad
7529213 Method and arrangement for signalling in a wireless IP multimedia network and a wireless IP mult May 5, 2009
The technology described relates to telecommunication networks and more specifically to a method and an arrangement for signalling in a wireless IP multimedia network and to a wireless IP multimedia network terminal device and permits 3GPP Core Network IP Multimedia Subsystems and all
7528814 Method and device providing enhanced characters May 5, 2009
A method of providing enhanced characters suitable for display on substantially low-resolution displays includes scaling-down a first representation of at least one character belonging to a given font according to a predetermined factor. A second representation of the at least one ch
7526745 Method for specification and integration of reusable IP constraints April 28, 2009
A hardware-block constraint specification method includes defining a plurality of hardware-block constraint categories according to at least one of type of constraint and constraint operating mode and defining a plurality of hardware-block constraint commands. Each of the plurality of
7526301 Method and devices for routing a message to a network server in a server pool April 28, 2009
Method, devices and computer programs for routing a message to a first network server (MSC1) in a server pool (CNSP) of a mobile communication system are disclosed. The mobile communication system comprises a controller (BSC2) of an access network (AN) connectable to the first networ
7523492 Secure gateway with proxy service capability servers for service level agreement checking April 21, 2009
The present invention describes a gateway in an Open Service Access (OSA) network where Service Level Agreement (LSA) checks are performed by a Framework (15) on a Central Gateway node (1). A distinction is made between applications (10) that can be trusted, like applications provided
7523165 Transmission of application information and commands using presence technology April 21, 2009
A method, a system, a User Equipment (UE) and an application platform for exchanging application information between a presence entity and a watcher, wherein the presence entity publishes application information or commands destined to a certain application, in the form of a presence
7522919 Enhancements to periodic silences in wireless communication systems April 21, 2009
Noise is measured at one or more base stations in a mobile communication system during periodic silence periods. A periodic silence period is defined for at least one carrier that is independent of reverse link channel frame boundaries. The radio base stations transmits silence param
7522689 Clock recovery in communication systems April 21, 2009
In a frequency hopped wireless network, more robust method and system are disclosed for recovering clock synchronization. The method and system of the invention relies on the fact that correct decoding of a received packet occurs only when the same clock value is used to generate the
7522560 Method, system and equipment for retransmission in communications systems April 21, 2009
By adaptively relocating a transmitting point between a base station and a base station controller, e.g., an RNC, optimal ARQ performance is achieved. The adaptation may be based on one or more of many factors such as the distance between a network element and a user equipment. As one
7519401 Efficient radio environment condition recognition April 14, 2009
User equipment (UE) in a cellular telecommunications system is operated such that the UE begins operating in a power saving state when a first set of predefined criteria have been satisfied, and leaves the power saving state when a second set of predefined criteria have been satisfie
7519079 Generic routing encapsulation over point-to-point protocol April 14, 2009
A system and method are described herein that are capable of reducing overhead while keeping the traffic separation characteristics between two routers by establishing and using a generic routing encapsulation (GRE) tunnel directly over a link running a point-to-point protocol (PPP) that
7515872 Distributed Caching and Redistribution System and Method in a Wireless Data Network April 7, 2009
A distributed caching and redistribution system, method, and mobile client for caching and redistributing data content in a wireless data network. The system enables mobile clients to cache data content that has been distributed by means of broadcast or multicast, and to redistribute the
7515594 Enhanced virtual circuit allocation methods and systems for multi-stage switching elements April 7, 2009
A system and method for routing data, which includes a switching node, including a plurality of switching elements and plurality of links coupled to the switching elements for providing a routing path for the data; and a virtual circuit identification algorithm in communication with
7515540 Communication device and method April 7, 2009
A device and method for controlling data unit communications between a sender and a receiver, and flexibly responding to a potential date loss event. Data units are transmitted from the sender to the receiver, and the receiver returns an acknowledgment data unit for each data unit re
7512716 Header compression method March 31, 2009
The invention relates to header compression in packet-based communication systems. A mechanism that allows a compressor to reject a request for an undesirable mode change is proposed. The compressor indicates to the decompressor that the mode change request is being ignored, whereafter
7512132 Quality of service (QoS) class reordering March 31, 2009
A network is described herein which includes a node and a downstream node where the node is capable of altering a Quality of Service (QoS) class of one client (packet) which is associated with a plurality of clients (packets) in a manner such that when the downstream node receives and
7512104 Resolving hanging contexts when roaming in a GPRS network March 31, 2009
The present invention discloses a method for preventing hanging resources in connection with an SRNS Relocation Procedure and/or a Routing Area Update Procedure for a terminal roaming in a UMTS or a GPRS network. According to a first aspect of the present invention, when the SGSN from
7512073 Method and signaling node for reducing signaling during call setup March 31, 2009
A method and a signaling node for reducing signaling during call setup in a communication network. The signaling node is an intermediate node on a signaling path between an origination node and a destination node. When a call setup delay is experienced, the intermediate node receives a f
7511640 Digital compression of binary data blocks March 31, 2009
Method and apparatus are configured to assign a code of less than N number of bits in length to a pattern of bits of a first polarity value distributed within a block of N binary bits. The method basically comprises (1) determining a number of bits of the first value in the block of
7511586 Noise generator March 31, 2009
A device for generating a noise signal, which may be used for generating a truly random sequence (10) of bits is disclosed. The device comprises a noise source (11), and an amplifier (12) connected to the noise source (11). The device according noise source according to the invention is
7509496 Device-type authentication in communication systems March 24, 2009
In a communication system (1), a header comprising information, preferably being related with a device-type associated commitment, is additionally provided with a signature for that information. The signature guarantees the authenticity of the header information. The signature is tam
7508793 Micro mobility management March 24, 2009
A MN, a method and a VMAP for increasing efficiency of handover of the MN from a AR1 to a AR2. The VMAP is hierarchically below a MAP and above the AR1. The MN has a RCoA valid under the MAP and a LCoA valid under the AR1. The VMAP comprises an OMM Function capable of receiving a PathUM

 
 
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