Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Telefonaktiebolaget L M Ericsson Patents
Assignee:
Telefonaktiebolaget L M Ericsson
Address:
publ) (Stockholm, SE
No. of patents:
4886
Patents:




Patent Number Title Of Patent Date Issued
7580712 Wireless high-speed data network planning tool August 25, 2009
Tools and methods are provided to model and simulate the high-speed data channel and the traffic scheduling function, and tools and methods to simultaneously simulate the high-speed data channel and other voice and data services sharing the same radio carrier. The tools and methods e
7580686 Adaptive predistortion method and arrangement August 25, 2009
An adaptive predistortion arrangement includes means (26, 40, 42, 44, 46) for up-converting a baseband signal (S1) into an intermediate frequency signal (S12) having frequency aliazing and means (18, 20, 220, 24, 26) for down-converting a radio frequency signal (S4) into an intermediate
7580683 Radio transceiver on a chip August 25, 2009
An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion durin
7580677 Communications interface device for receiving digital signals August 25, 2009
A communications interface device (4) has circuitry for receiving digital signals in the form of characters according to a protocol defining that a communications link is initialized by a series of start characters, each having a specified duration. The receiving circuitry can assume a f
7580367 Method and device for the automatic configuration of a GPRS terminal August 25, 2009
The invention relates to a method and devices for the automatic configuration of a GPRS terminal. Therefore data relating to a terminal type and a terminal identification are stored in a device configuration register. The configuring is started by a serving GPRS support node that rec
7580362 System and method for reporting measurements in communication system August 25, 2009
A system, method and control unit are described for controlling the periodic reporting of measurements in a communication system from an access point to a control unit over a control interface. The measurements are used by algorithms in the control unit for controlling resource alloc
7577456 Using uplink relative path gain related measurements to support uplink resource management August 18, 2009
A cellular system includes a first cell associated with a first base station, a second cell associated with a second base station, and a mobile radio currently served by the first base station. Distributed resource control may be used in which the first base station alone or in combi
7577422 Lawful interception of multimedia calls August 18, 2009
A method of performing lawful interception of a multimedia call between two or more terminals. The method comprises detecting the initiation of said call at monitoring equipment located in the call path, and forwarding from the monitoring equipment to a gateway, parameters defining a
7577091 Cluster-based network provisioning August 18, 2009
In the area of network provisioning, there is a problem of selecting a suitable traffic-provisioning model for large networks due to the high management complexity of the resource-efficient trunk model and the poor bandwidth efficiency of the easy-to-configure hose model. The invention
7573908 Data unit handling device and method of controlling a data unit handling device August 11, 2009
A first protocol layer (1), when acting as a receiving peer in a communication, paces data units to be released from a buffer (31) to a second protocol layer (2) lying above the first protocol layer (1). The pacing is conducted over a release period T that is longer than the period o
7573883 System, method and operator for increasing the active window size in a NAK-based window protocol August 11, 2009
Peers in a Radio Link Protocol (RLP) communication channel negotiate the size of an inactive window in a receive queue. The window size may be a parameter included in the RLP_BLOB. The receive queue controller may accept the proposed size, or may return a different inactive window size.
7573856 Power-based rate adaptation of wireless communication channels August 11, 2009
A radio base station (RBS) provides dynamic rate adaptation for rate-adjustable communication channels used to transmit information to remote mobile stations based on monitoring transmit power information associated with those channels. For a given channel, the RBS tracks an average
7573812 Passive virtual router redundancy prototcol August 11, 2009
The present invention relates to a pair of routers which implement an active VRRP group and one or more passive VRRP groups wherein the active VRRP group executes the VRRP election protocol and the passive VRRP group(s) do not execute the VRRP election protocol but instead the passiv
7573419 Method and system for unambiguous angle resolution of a sparse wide-band antenna array August 11, 2009
The present inventive concept for bistatic or monostatic radar utilization discloses a method and a system for unambiguous angle resolution of a sparse wide-band array antenna by utilizing an ultra wide-band signal, generally a wide-band noise signal which may be continuous bandwidth
7573358 Tunable microwave arrangements August 11, 2009
The present invention relates to a tunable microwave arrangement (10) comprising a microwave/integrated circuit device (11) and a substrate (6). It comprises a layered structure disposed between said microwave/integrated circuit device and said substrate (5), said layered structure a
7571382 Partial retrieval of images in the compressed domain August 4, 2009
In a method and a system for retrieving images in a client-server system, images are stored as a set of independently decodable units (CU's) on the server. A client issues a series of requests for image information. Each request contain a request number, information on what image informa
7571338 Determining a time difference between first and second clock domains August 4, 2009
Buffer circuitry receives data to be processed by electronic circuitry using a first clock signal associated with a first clock domain. The buffered data is output using a second clock signal associated with a second clock domain. The buffering of the data is associated with a buffer
7570967 Method and system of transmission power control August 4, 2009
The present invention relates to cellular mobile radio systems, and more especially it relates to Code Division Multiple Access, CDMA, cellular mobile radio systems, particularly to transmission power control in such systems. A method and apparatus for transmission of TPC commands when a
7570952 Advance resource allocations for association state transitions for wireless LAN system August 4, 2009
A central controller (CC) [22] of a wireless Local area network (LAN) [20], in conjunction with an association operation with a mobile terminal [24] and upon receiving from the mobile terminal (MT) a first control signal [CS1] of a sequence of control signals involved in the association
7570665 Generation of mixed media streams August 4, 2009
To achieve coordination during generation of a plurality of mixed media streams, there is suggested a method of generating a mixed media stream (62-64) from input media streams (40-50) having payload data elements and related identifiers. The method comprises the step (S12) of aligning t
7570615 Resource-sharing cells August 4, 2009
A virtual network is created by providing antennas controlled by the same radio access station with control signals of virtual radio access stations. Sets of physical channels comprising the control signals are dedicated to the respective antennas, while sets of physical channels com
7570123 Digitally controlled analog frequency synthesizer August 4, 2009
A frequency synthesizer according to the present invention digitally controls an analog oscillator to generate an analog output signal at a desired frequency. A digitizing circuit converts a feedback signal derived from the oscillator output signal to a digitized multi-phase feedback
7568234 Robust and flexible digital rights management involving a tamper-resistant identity module July 28, 2009
The invention relates to digital rights management, and proposes the implementation of a DRM agent (125) into a tamper-resistant identity module (120) adapted for engagement with a client system (100), such as a mobile phone or a computer system. The DRM agent (125) is generally impl
7567745 Optical attenuator and method of manufacture July 28, 2009
In the manufacture of an optical attenuator having a desired value of the optical loss end regions of two optical fibers are placed with an offset in the traverse direction in relation to each other and having their end surface at each other. Thereafter the region at end surfaces is heat
7567501 Embedded keying July 28, 2009
Method of communicating digital data in which frames (8) are transmitted cyclically whereby a first number of symbols is transmitted according to a first keying mode (II) using a first constellation, and a second number of symbols is transmitted according to a second keying mode (L) usin
7565658 Hidden job start preparation in an instruction-parallel processor system July 21, 2009
The read latency caused by job start preparation of a future job is at least partly hidden within the current job by reading information for job start preparation of the future job integrated with the execution of the current job. Instructions for job start preparation are preferably
7565080 System and method for integrating a fiber optic fixed access network and a fiber optic radio acc July 21, 2009
A system and method are described for integrating a fiber optic fixed access network and a fiber optic radio access network. At least one radio unit transmits and receives communications with at least one mobile unit. A first multiplexer transmits and receives the communications with the
7564788 Flow control for low bitrate users on high-speed downlink July 21, 2009
A radio access network node (28) which provides High Speed Downlink Packet Access (HSDPA) comprises one or more priority queues (50.sub.i) and a flow controller (60). The priority queue (50) stores data which is to be sent on a High Speed Downlink Shared Channel (HS-DSCH) over an air
7561901 Adaptation of push mail filters to save UE battery power July 14, 2009
One or more push mail filters of an email dispatcher is automatically, and preferably in an event-driven and dynamic manner, adapted to decrease the number of messages transmitted to a battery-operated user equipment (UE) based on one or more battery conservation parameters monitored by
7561637 Determination of a channel estimate of a transmission channel July 14, 2009
A method of determining a channel estimate of a first transmission channel in a communications system. The method comprises deriving a first set of channel estimates from symbols received through said first transmission channel; deriving a second set of channel estimates from symbols rec
7561579 Method for controlling the quality of service in an IP multimedia system July 14, 2009
The invention relates a method for providing a level of service for a Mobile Terminal (MT) in a packet data telecommunications network. The further method receives at the MT from a proxy server a request message for requesting the quality of service for a session between the MT and t
7560992 Dynamically biased amplifier July 14, 2009
The present invention provides dynamic biasing of transistor in an amplifier (1) comprising at least two interconnected transistor (10, 20) provided for processing an input signal. Once the input signal is applied to a driver transistor (10), a DC current signal of the output electrode
7558953 Loading data into a mobile terminal July 7, 2009
Disclosed is a method of loading data, such as software, into a mobile terminal, where the data is loaded from a loading station, and the data comprises payload data and header data. The mobile terminal accepts the data conditioned on a verification process based on the header data. The
7558573 Method and system for handling the transcoding of connections handed off between mobile switchin July 7, 2009
A communication system supports multiple source coding and/or channel coding schemes. When a handoff is needed that transfers radiocommunication service support responsibility from a base station controlled by one MSC to a base station controlled by another MSC, signaling procedures
7558533 Parameter estimate initialization using interpolation July 7, 2009
A receiver is described herein that is capable of receiving and processing a radio signal and further capable of using interpolation to initialize receiver parameters when there is a change in at least one delay associated with the received radio signal or when there is at least one
7558330 Multiple stream co-phasing for multiple-input-multiple-output (MIMO) systems July 7, 2009
A system and method for transmitting multiple independent data streams from subsets of a plurality of radio antennas. The method includes determining by the receiver, an antenna partitioning, including relative phase rotations to be applied to each antenna, that results in the highes
7558314 Method and device for detection of a UMTS signal July 7, 2009
The present invention relates to a method (and corresponding device) of detecting a first signal in a received signal using a pattern, the received signal comprising at least one signal group, each signal group comprising a number of signal symbols, the pattern comprising at least on
7558262 Group hopping and channel zapping during transmission of multicast applications July 7, 2009
The invention relates to a method for performing a flexible multicast of multicast data to a multicast group within a telecommunication system wherein the multicast data is provided by a broadcast/multicast server and transferred to the users registered to the multicast group by means
7557652 Power amplifier system July 7, 2009
A multiple input multiple output power amplifier system includes multiple main amplifiers for amplifying corresponding independent input signals. A common control unit forms a composite signal from the independent input signals. The composite signal is amplified by a peaking amplifier an
7555319 Adaptive power efficient radio environment measurements June 30, 2009
User equipment (UE) in a cellular telecommunications system is operated such that the UE is caused to begin operating in a power saving state by determining that a first set of predefined criteria have been satisfied and is caused to leave the power saving state by determining that a
7555298 Queue prediction to reduce virtual handoff latency June 30, 2009
In a high-rate packet data (HRPD) wireless communication network, an Access Terminal (AT) selects its serving cell, and additionally provides an advance indication of a pending cell selection. Upon receipt of the advance indication, the network directs data packets destined for the AT
7555079 Method and corresponding arrangement for DC offset compensation using channel estimation June 30, 2009
A method of determining a DC offset in a communications signal received via a communications channel, the communications signal comprising a sequence of training symbols. The method comprises providing a channel estimate of the communications channel based on said sequence of training
7555077 Method for path-searcher scheduling June 30, 2009
A method for adaptively scheduling activation of a path-searcher for a mobile terminal operative in a telecommunication system. The mobile terminal is capable of receiving multi-path signals originating from a scattered signal from a transmitter of at least one base station in the te
7555074 Interference estimation in the presence of frequency errors June 30, 2009
Methods and apparatus for estimating interference level in a receiver are dominated by the receiver's residual frequency error when the interference is low. The interference estimation method can be changed when the interference is low such that it compensates for the effects of resi
7554998 Interference-based routing in a wireless mesh network June 30, 2009
Route selection through a wireless mesh network between a source node and a destination node is based on minimizing generated interference in order to increase the capacity of the network. An interference energy associated with transmitting a packet over each hop in multiple routes f
7554954 Per user rate control for the reverse link in CDMA networks June 30, 2009
A method and apparatus enables a base station to control the reverse link data rates of the mobile stations. Such control may be used to improve reverse link throughput, and such improvements may be balanced against fairness of service interests. Broadly, a radio base station (RBS) makes
7554942 Geographical restriction of services in a packet data telecommunications network June 30, 2009
A method and a Packet Data Service Node (PDSN) of restricting geographical use of a service for a mobile terminal (MT) in a packet data telecommunications network. The PDSN receives from an access node (AN), a registration request message having a cell information for requesting. The
7551926 Terminal-assisted selection of intermediary network for a roaming mobile terminal June 23, 2009
Terminal-assisted selection of intermediary network for a roaming mobile terminal is disclosed. The mobile terminal determines if a local access network is associated with the mobile's home service network. If not, or if the mobile terminal cannot determine whether the local access netwo
7551914 Authentication in a communication network June 23, 2009
A method of authenticating a mobile node to a communication system is provided, the communication system comprising a plurality of access nodes, the method comprising the steps of (a) generating a numerical chain comprising a seriesof values using a one-way coding function such that
7551597 Methods and apparatus for fast downlink information of uplink out-of-synchronization June 23, 2009
Information systems, detectors, and methods for a communication link, such as the downlink of a cellular telephone system, reduce the problem of uplink transmit power peaks when the uplink is out of synchronization (OoS). One method of indicating that a first link to a communication node

 
 
  Recently Added Patents
Tool health information monitoring and tool performance analysis in semiconductor processing
Processing method for conservation of processing gases
Safety razor handle
Aircraft having integrated electrochemical supply system
Banner greeting method and device
Phosphorus addition process for improvement of catalysts suitable for maleic anhydride production
Return link design for PSD limited mobile satellite communication systems
  Randomly Featured Patents
Heald shaft for a weaving machine
Photopolymerizable dual transfer negative working color proofing system
Bearing device for machine tool spindle
Coating material, related production method and use
Semiconductor device
Maintenance cart for remote inspection and cleaning of closed track
Air humidifiers
Video camera carrying case
Method and apparatus for determining the ignition angle for an internal combustion engine with adaptive knocking
Semiconductor integrated circuit devices adapted for automatic design and method of arranging such devices