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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
7506156 Method and apparatus for prioritizing encrypted traffic at an intermediate node in a communicati March 17, 2009
The present invention provides a method and apparatus for prioritizing encrypted traffic at an intermediate node within a communications network. The present invention provides a method and an intermediate node that prioritizes the processing of a packet based on one or more size-bas
7505530 Pre-distortion using a by-pass signal March 17, 2009
An output signal from an inherently non-linear device is linearized by sampling an original signal with a first sampling rate for a desired signal resolution of an achieved digital original signal message; and re-sampling the original signal at a second sampling rate for creating a d
7502930 Secure communications March 10, 2009
A method of providing secure communications between a first and a second communications unit comprising a key exchange between the communications units resulting in a shared secret key, the' key exchange including a user interaction. The method includes the steps of providing, at least
7500018 Efficient in-band signaling for discontinuous transmission and configuration changes in adaptive March 3, 2009
Techniques for discontinuous transmission (DTX) and fast in-band signaling of configuration changes and protocol messages in speech communications systems provide cost efficiency in terms of radio transmission capacity, in terms of fixed line transmission, and in terms of implementation
7499649 Method for optimising a mostly optical network March 3, 2009
Method for forming the virtual topology of an ATM-layer where the ATM-layer is carried over an optical network, where inputs such as the physical topology and constraints of physical nature are given, thereafter forming node-pairs with end-to-end connections according to some known o
7499466 Multicast group management in telecommunication networks March 3, 2009
The invention relates to a method, network node, router, serving node and system for performing multicast data delivery in a mobile telecommunication network. The basic idea is to provide a management of the multicast groups within a mobile telecommunication network. In particular th
7495672 Low-cost supersampling rasterization February 24, 2009
A sampling pattern covering an array of pixels for use in an anti-aliasing system is disclosed where each pixel has a pattern of sample points at the edges of the pixel. Moreover is the sample point pattern of each pixel a mirror image and different from the pattern of a directly nei
7493119 Distributed radio units February 17, 2009
A method in a communication system comprising a access network with Radio Network controllers (RNC) and radio base stations (RBS or Node B) consisting of main units (MU) which performs base band signal processing and one or more radio remote units (RRUs) which converts between baseband
7493108 Provision of a multimedia broadcast/multicast service (MBMS) for a user equipment moving along c February 17, 2009
Procedures are provided for the establishment of MBMS services in different cells of a cellular telecommunications network, in particular, for maintaining the transmission of MBMS data to a particular user equipment, even when it moves from one cell to another when the service is pro
7492756 Arrangement and a method in a switched telecommunication system February 17, 2009
A telecommunication system and method enables an end user to select communication services from a plurality of communication service networks providing different communication services. A telecommunication switch is connected to the service networks, and one or more local network ter
7490163 Data unit transmission method and device February 10, 2009
A method of controlling a transmission of data units arranged in accordance with a predetermined communication protocol over a plurality of network entities, said network entities operating according to said predetermined communication protocol, from a sending network entity to a rec
7489705 Transmission control method in an ARQ system February 10, 2009
A method of controlling the transmission of a sequence of data symbols over a connection provided by a predetermined communication layer, which method comprises modifying the transmission by identifying (S41) a reference data symbol in the sequence of data symbols, dividing (S42) the
7489634 Method and system for controlling traffic load between media gateway controllers and proxies February 10, 2009
The invention refers a method of regulating the traffic that may be used between a SIP User Agent (SIP-UA) and a SIP Proxy in high traffic load situations, like in a telephony-SIP inter-working senario where the MGC in the inter-working gateway is acting as a SIP-UA. Thus, a method to fi
7489197 Coupling net and MMIC amplifier February 10, 2009
Microwave coupling network comprising a passive resistive pi net and a coupling capacitor is coupled to a branching point. The branching point is coupling to respectively a plurality of common drain FET amplifier stages or respectively to common collector BJT amplifier stages, wherein
7486968 Method and system for transmission of carrier signals between first and second antenna networks February 3, 2009
Method and system for transmission of carrier signals, each of which occupy a different radio-frequency band, between first and second antenna networks (14, 15), each comprising a plurality of distributed antenna's (6), with the first antenna network (14) being coupled to a main coupling
7486959 Method of and apparatuses for cell selection in a mobile communications system February 3, 2009
A method for cell selection at access in a cellular radio communication system. A first hysteresis level for determining a first ranking level of serving cell is used at access, and a second hysteresis level for determining a second ranking level of the serving cell is used in idle m
7486716 Method and apparatus for using chip sample correlations in one or more received signal processin February 3, 2009
A wireless communication receiver obtains improved performance under certain fast fading conditions by basing one or more received signal processing operations on pre-despreading chip sample correlations rather than on post-despreading noise correlations, but preserves soft scaling i
7486233 Method and system of positioning February 3, 2009
The present invention relates to cellular mobile radio systems, particularly to systems of more than one co-sited cell/sector. A method and apparatus for high accuracy enhanced positioning not requiring more sites than one to be involved in positioning is disclosed.
7486207 Method and device for changing an encoding mode of encoded data streams February 3, 2009
A method, a component, a system, and a computer program for changing an encoding mode of an encoded data stream from a first encoding mode to a second encoding mode are disclosed. The encoded data stream at the first encoding mode is represented by first encoding parameters. For the
7486135 Configurable, variable gain LNA for multi-band RF receiver February 3, 2009
A configurable LNA architecture for a multi-band RF receiver front end comprises a bank of LNAs, each optimized to a different frequency band, wherein each LNA has a configurable topology. Each LNA comprises a plurality of amplifier stages, each stage including an RF transistor havin
7483989 Method and apparatus for establishing a protocol proxy for a mobile host terminal in a multimedi January 27, 2009
A protocol proxy relationship is established between a non-enabled host and a protocol-enabled router or other node in a multimedia session including a mobile communications network. A mechanism is provided that allows a non-enabled mobile terminal to communicate a protocol proxy req
7483680 Method and apparatus for modulation path delay mismatch compensation in a polar modulation trans January 27, 2009
A polar modulation transmitter offers a split architecture for determining amplitude modulation path delay of the transmitter and comprises a split supply modulation circuit and a split power amplifier circuit. The split supply modulation circuit includes a common supply input and is
7483674 Providing robustness in fading radio channels January 27, 2009
A carrier frequency is selected to be used to communicate information to a transceiver in a communication system. Selecting includes, on each of one or more carrier frequencies, transmitting a probe message to the transceiver. A frequency offset between any two adjacent ones of the c
7483425 Method for reducing the amount of needed memory in a TDM switch system January 27, 2009
The present invention discloses an arrangement providing a better utilization of the bus buffer memory in a data node, e.g. a switch. By using one scheduler on both sides of the switch and one timer for each output and input lines in an inventive way for transferring data to and from
7483401 Dynamic allocation of frequency spectrum January 27, 2009
A method and arrangement in a communication system for dynamically allocating communication system frequency spectrum after cross-talk interface between transmission medias used for upstream and downstream communication in the frequency spectrum. After detecting cross-talk interface
7480490 Coexistence of multiple radio systems in unlicensed bands January 20, 2009
A transceiver operates in a communication environment capable of including other transceivers, wherein the transceiver sends and receives traffic in accordance with a first communications standard, and other transceivers send and receive traffic in accordance with other communication sta
7480356 Method of and system for path selection in rich multipath conditions January 20, 2009
A signal-path-selection method in a RAKE receiver includes producing C channel estimates from M received signal paths, determining a plurality of best signal paths using the C produced channel estimates, choosing A signal paths of the plurality of best signal paths in accordance with at
7480342 Soft value calculation for multilevel signals January 20, 2009
A sub-optimal method is disclosed for calculating the reliability values (soft values) for the bits of a multilevel signal. The log-likelihood values are approximated using only the dominant terms, so called max-log approximation, that is for each bit position only the two closest signal
7478395 Middleware application message/event model January 13, 2009
System and method for transmitting messages between first and second software components such as application software and software of a platform for a product. An exemplary system includes a platform having a software component and an interface component having an interface for provi
7477923 Exchangeable module for additional functionality January 13, 2009
The invention refers to an exchangeable power-supplying unit (200, 300) arranged to supply electric power to a device (100, 400). The power-supplying unit (200, 300) is arranged so as to provide the device (100, 400) with one or several additional functionalities and it can preferabl
7477697 Multiplexing method in a multi carrier transmit diversity system January 13, 2009
The invention relates to a method of multiplexing data words in a multicarrier transmit diversity system. The method comprises the step of generating a plurality of data blocks, each data block comprising data words and each data word containing data symbols derived from a data signa
7474721 Sliding-window based signal monitoring January 6, 2009
The invention is generally directed towards monitoring of a signal (m), such as a clock signal or a data signal, by sampling the signal to obtain a discrete sample representation of the signal and analyzing the sample representation. The idea according to the invention is to slide a samp
7474663 Flexible and scalable method for handling telecommunication equipments through the control of AT January 6, 2009
A flexible and scalable method for handling telecommunication equipment through the control of ATM access networks, characterized in that the Board Relay (BR) functionality is attributed to any Device Processor (DP) and in that the Central Processor (CP) is connected to all the other
7474649 Scheduling in packet switched networks January 6, 2009
A system and method of scheduling radio resources for a plurality of users in a packet-switched radio communication network. A scheduling number (Si) is calculated for each user before each scheduling event. A weight (Wi) is assigned to each user based on an associated Quality of Service
7474648 Filtering multipath propagation delay values for use in a mobile communications system January 6, 2009
A time slot boundary of an unknown cell in a telecommunications system is identified by correlating a received signal with a known code over a range of delay values for each of one or more time slots, wherein the known code is used by all cells in the telecommunications system. Only
7474611 Reduced complexity channel estimation in OFDM systems January 6, 2009
A channel response estimate is generated from a received signal that comprises two or more different pilot carriers in an Orthogonal Frequency Division Multiplexing (OFDM) communications system. This involves, for each of the carriers, determining a rotation amount that is at least in
7474176 Sliding screw arrangement January 6, 2009
The present invention relates to a sliding screw arrangement (14) for transformation of the rotational movement of a threaded axis (13) into a linear movement of the sliding screw providing minimized tolerances for variations of the screw position in both radial and axial direction and
7471928 Modulation scheme management December 30, 2008
The invention involves selection of modulation scheme for a mobile unit (100) having access to a link quality enhancing algorithm (130) operable only on data modulated using a subset of the available modulation schemes. The mobile unit (100) performs signal quality measurements on a
7469194 Method for optimizing the distribution of sensor resources December 23, 2008
The invention discloses a method for optimizing the distribution of the resources of a scanning sensor over a number of areas, where each area can have demands for sensor resources. Said demands are expressed as a dwell time and a revisit time, and the method comprises assigning to each
7469146 Radio link management based on retransmission request performance December 23, 2008
A wireless communication network receives packet data transmissions from a mobile station, tracks the occurrence of retransmission requests sent to the mobile station responsive thereto, and modifies the radio link assignments for the mobile station based at least in part on said tra
7469024 Method and apparatus for finger placement in rake receiver December 23, 2008
A receiver based on a RAKE receiver architecture includes a logic circuit configured to assign one or more RAKE fingers to a finger placement grid that is independent from a searcher delay grid used by the receiver's searcher in generating multipath delay profiles for received signals. T
7469017 Multimodulation transmitter December 23, 2008
The present invention discloses a double TRU (Transceiver Unit) (45). The output signals from the power amplifiers (64, 84) are combined to one common output signal provided to an antenna arrangement (91). A DSP (Digital Signal Processor) (52, 72) of each TRU (50, 70) comprises means
7468968 System and method for connecting peripheral devices to a supporting network through a mobile sta December 23, 2008
A mobile station serves as an aggregation point for connecting one or more peripheral devices to a Public Data Network through the mobile station's wireless link to a supporting wireless communication network. In an exemplary embodiment, the mobile station establishes a single PPP sessio
7468699 Triple polarized patch antenna December 23, 2008
An antenna arrangement for a Multiple Input Multiple Output (MIMO) radio system, the antenna arrangement transmitting and receiving in three essentially uncorrelated polarizations. The arrangement includes three parallel, stacked patches separated by first and second slots. A first f
7466983 Overload protection in packet communication networks December 16, 2008
Methods of handling messages at an interface in a communication system include the steps of receiving a message having an information element indicating the message's type, determining whether a frequency of receipt of messages of a predetermined type exceeds a threshold, handling the
7466669 Reverse link scheduler for CDMA networks December 16, 2008
A base station (BS) is configured to support a plurality of mobile stations on the reverse link by selectively designating one or more of them as members in a rate-controlled set. Members follow the common rate control commands broadcast by the BS, while non-members do not. The non-m
7466666 Forward ACK/NACK channel for CDMA system December 16, 2008
A base station receives data frames from a mobile station and selectively gates a physical layer radio channel to provide ACK and NACK indications responsive to the receipt of the data frames from the mobile station. The physical layer radio channel is gated on to provide one of an ACK a
7466658 Receiver and method for decoding of truncated data December 16, 2008
Coded digital data symbols sent from a transmitter through a transmission channel of a communications network are received in a receiver. An estimate, represented by a first number of bits, of a sent data symbol is calculated, and a second number of bits, lower than the first number, is
7464166 Contention-based forwarding with integrated multi-user detection capability December 9, 2008
A basic idea is to employ multi-user detection (MUD) at the receiver side in a multi-hop network to concurrently decode multiple packets transmitted from multiple nodes (T.sub.1, T.sub.2), and prioritize among the correctly decoded packets to select one or more packets suitable for f
7463901 Interoperability for wireless user devices with different speech processing formats December 9, 2008
Interoperability is achieved between wireless user communication devices that have different speech processing formats and/or attributes. A first wireless user communication device includes a primary speech codec that encodes a first speech message using a first speech encoding format. T

 
 
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