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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
7463599 Method and apparatus for minimizing time of reception during paging December 9, 2008
A method and apparatus for detecting a periodic message in a mobile communication system includes initiating, at a receiver, a reception of synchronization data a predetermined amount of time prior to a current periodic message. The predetermined amount of time is based on at least o
7460856 Method and apparatus for switching access between mobile networks December 2, 2008
A method and apparatus for switching access between mobile networks for a mobile terminal comprising a first and a second radio device capable of communication with a first and a second mobile network, respectively. The second mobile network has priority over the first mobile network. A
7460613 Digital linearization circuit December 2, 2008
A solution is disclosed for achieving a functional complex base-band adaptive digital nonlinear device model providing RF-power amplifier distortion (i.e. linearization or pre-distortion) minimizing distortion characterization including memory effects. The present inventive solution
7460583 Method for path searching and verification December 2, 2008
The present application describes a new path search and verification method and apparatus for identifying and selecting one or more delays for a receiver. A front-end receiver receives a signal having one or more signal images, where each signal image has a corresponding signal delay.
7460513 Encapsulation of diverse protocols over internal interface of distributed radio base station December 2, 2008
A radio base station (20) has an internal interface (26) which connects a radio equipment (22) and a radio equipment controller (24). At least one and preferably both of the example radio equipment (22) and radio equipment controller (26) comprises a framer (50, 70) which can be cont
7460508 Methods for cluster-based multi-party conferencing in ad-hoc networks December 2, 2008
Methods for establishing a cluster-based multi-party conference and for carrying on the conference as participants join or leave the conference are provided. First, two or more terminals participating to the conference are joined in a cluster, wherein one of them is elected as a supe
7460071 Triple polarized patch antenna December 2, 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 first and second patches, and four feeding points for feeding the first patch.
7457956 Securing arbitrary communication services November 25, 2008
The present invention relates to securing information in open systems and more particularly to a method and a system for providing authentication, confidentiality and integrity protection of arbitrary communication services. A client that wishes to communicate with a particular service
7457406 Network interface device November 25, 2008
A converted telephone plug inserted into the first jack of a traditional, local telephony network breaks the normal connection to a public switched telephony network (PSTN) and reroutes signals to special telephony equipment for further connection to a modem access network. The advan
7457300 Ethernet address management system November 25, 2008
A method and system for mapping original Media Access Control (MAC) addresses to unique locally administered virtual MAC addresses in an Ethernet network. An access node uses an address mapping function to map each original MAC address to one of a plurality of locally administered vi
7457280 Combining narrowband applications with broadband transport November 25, 2008
The combination of narrowband applications with broadband transport may be enabled with a tri-level nodal communications architecture including a call control node having both switching intelligence and narrowband switching fabric, a plurality of connection control nodes having broad
7457260 Transmission control method in a radio access network implementing an automatic repetition reque November 25, 2008
A method of controlling the sending of data packets from a Base Station (BS) of a Radio Access Network (RAN) to a UE, where the BS is one of a set of BSs transmitting identical data to the UE and each said data packet has a sequence number. The method comprises implementing at the BS
7457253 System, an arrangement and a method relating to IP-addressing November 25, 2008
The present invention relates to a communication system comprising a number of end user stations (hosts) connected over access networks and routing arrangements. The system supports a IPv6 (Internet Protocol version 6) addressing scheme, wherein the end user stations are connected to
7457243 Scheduling and admission control of packet data traffic November 25, 2008
A method, apparatus and software program is provided for scheduling and admission controlling of real-time data packet traffic. Data packets are admitted or rejected for real-time processing according to throughput capabilities of a packet scheduler. A delivery deadline is determined for
7457237 Shared risk group handling within a media gateway November 25, 2008
A media gateway controller (MGC) is described herein that implements a shared risk group package to control and prevent a media gateway (MG) from establishing redundant links like a primary link and a secondary link that use resources that share the same risk of failure. Essentially,
7456772 Fast, high resolution digital-to-analog converter November 25, 2008
A fast, high resolution digital-to-analog converter (DAC) is described herein. The DAC comprises a pulse generator, decay circuit, controller, and sample circuit. The pulse generator serially outputs pulses representing digits of a digital word least significant digit first. Each pul
7456664 Delay locked loop with precision controlled delay November 25, 2008
The invention discloses a delay-locked loop circuit with input means for a signal that is to be delayed, the input means comprising means for splitting the input signal into a first and a second branch. The signal in the first branch is connected to a component for delaying the signal,
7454173 Load control in shared medium many-to-one communication systems November 18, 2008
A load control method is described herein that enables a base station to broadcast three downlink signals including a busy indicator, a maximum resource indicator and a minimum resource indicator to a mobile terminal. In response to receiving the downlink signals, the mobile terminal lim
7453909 Method for reducing the bus load in a synchronous data bus system November 18, 2008
The present invention is related to buffering between synchronous circuits communication via a global synchronous bus, and in particular an arrangement for reducing the busload in a TDM bus system by, in a preferred embodiment, introducing a local TEM data bus and an active buffer in
7453890 Channel reallocation method and device November 18, 2008
In a communication system comprising a gateway node between a communication network 1 and a circuit-switched communication network 2 via a plurality of circuit-switched channels ch 1, . . . , chn associated with the gateway node and comprising at least two control entities to which r
7453856 Method, apparatus, and communications interface for sending and receiving data blocks associated November 18, 2008
A unified and flexible signaling method and radio interface accommodate different multiple access schemes, e.g, FDMA, TDMA, CDMA, OFCDM, and IFDMA. Each user data unit is associated with one of several different multiple access techniques that defines how multiple users access commun
7453847 Method and arrangement for channel type switching November 18, 2008
The present invention relates to a method for improved and efficient usage of radio network resources with regard to the transmission properties of applied communication channel types and total network load by means of using early indications on the uplink or downlink of requests to
7451456 Network device driver architecture November 11, 2008
The invention proposes a network device driver architecture with functionality distributed between kernel space and user space. The overall network device driver comprises a kernel-space device driver (10) and user-space device driver functionality (20). The kernel-space device drive
7451446 Task supervision November 11, 2008
The invention relates to a method for supervising a task-based data processing, wherein for a plurality of tasks the following steps are performed for each task: scheduling the task for processing, and logging the scheduling of the task by storing a task identifier in a log memory, s
7450843 Optical communication system with two parallel transmission paths November 11, 2008
In an optical communication link a first node (30) with transmission means (50) and a second node with receiving means (40) are connected by at least two optical fiber transmission paths (100,200). One path serves as the working path, while the remaining path or paths serve as protection
7450601 Method and communication apparatus for controlling a jitter buffer November 11, 2008
A method for controlling a jitter buffer and a communication apparatus implementing the method and functioning as a first node of a communication system, wherein the jitter butter is adapted to buffer a stream of blocks of compressed speech information generated in a second node in t
7450591 System for providing flexible charging in a network November 11, 2008
The present invention relates to arrangements for charging in a packet switched network. Packets are charged differently dependent on which service flow the packets belong to. The charging system comprises a control system and a serving element residing in a packet forwarding system
7450577 Flexible inter-network communication scheduling November 11, 2008
Systems and methods are provided for managing communications between two or more ad-hoc networks in a communication system. The systems and methods may have flexible communication time sharing of one or more nodes taking part in two or more ad-hoc networks. For example, the communica
7450565 Conversational bearer negotiation November 11, 2008
A method of setting up a call between first and second nodes of a communication system when the call extends across a circuit switched access network and a packet switched backbone network interconnected by a Media Gateway. A control node obtains from a Home Subscriber Server, the id
7450063 Method and arrangements relating to satellite-based positioning November 11, 2008
Alleviating ambiguous pseudorange reconstruction in connection with satellite-based positioning of mobile terminals with assistance data such as Assisted GPS (AGPS). An initial pseudorange selection cycle includes: determining a first admissible pseudorange associated with a first sa
7447305 Method and arrangement for filtering of signals November 4, 2008
A filter (45) is passive and has a complex impedance which gives good impedance matching to the complex impedance of a transmission line. Because the filter is passive, it does not need to be powered and can thus be placed in locations that lack a power supply. The filter can also fu
7444578 Data unit sender and method of controlling the same October 28, 2008
A data unit sender and method of controlling a data unit sender are presented, in which a time-out monitoring procedure implements a first, longer time-out period (SRTO), and a second, shorter time-out period (QRTO), where a retransmission is executed after the shorter time-out perio
7444281 Method and communication apparatus generation packets after sample rate conversion of speech str October 28, 2008
A method for generating speech packets and a communication apparatus implementing the method and functioning as a first node of a communication system. A first stream of digital speech samples having a first sample rate is provided (201). If the first sample rate is determined (202)
7443826 Method and apparatus for automatic frequency control in a CDMA receiver October 28, 2008
Code division multiple access signals received through at least one multipath propagation channel are processed to produce at least one relative frequency error estimate. This involves receiving and processing the signals using a local frequency reference oscillator to obtain represe
7443822 Method for multihop routing for distributed WLAN networks October 28, 2008
A method for multihop packet trasmissions in a wireless network involves establishing a multihop route through the wireless network. After establishment of the multihop route, transmission protocol parameter are altered to minimize delays for transmissions over the multihop route and
7443786 Apparatus and methods for home agent resiliency for mobile IPv4 October 28, 2008
Providing resiliency for mobile terminal data sessions, wherein the data sessions rely on Internet Protocol Version 4 and wherein at least one Home Agent node maintains a mobility bindings database for all registered mobile terminals while they are away from a home network. A first aspec
7443232 Active load arrangement October 28, 2008
An active load arrangement is used to provide proper output load to an object TO under test. The arrangement Z comprises a voltage_controlled transistor MOSFET having a source S, a gate G and a drain D. The drain D is associated with the gate G and connected to an arrangement input I2
7442880 Contact spring assembly October 28, 2008
The present invention relates to a method of securing a reliable electrical contact between two adjacent surfaces by means of a contact spring (30) of a contact spring assembly (1). The secure and reliable contact is achieved by providing excellent conditions for maintaining the cont
7440763 Multi-access call setup October 21, 2008
In a multi-access communication system, a terminal is kept reachable through a first access network, which is most resource efficient one of the available access networks for keeping the terminal reachable. The terminal scans passively for the existence of usable base stations for ot
7440755 System and method for locating a wireless local area network October 21, 2008
A system and method for finding a wireless local area network, WLAN, when a mobile terminal is connected to a cellular network. A position associated with each WLAN operating within the coverage area of the cellular network is stored in a database. At predefined intervals or conditio
7440745 Signaling in a mobile cellular communication network with pooled MSCs October 21, 2008
To achieve an efficient and flexible routing of signaling messages between a core network and an access network in a mobile communication cellular network, it is proposed to provide a pool of mobile switching apparatuses between the core network and the access network. Each mobile switch
7440429 Method and system for re-establishing context of data packet flows October 21, 2008
The present invention relates to a system, a Midcom Agent, a method for re-establishing context and a computer program product for performing the steps of said method. In a multi-domain, multi-access IP network there is a need for a method to re-establish context associated with a flow w
7437655 Apparatus and method for flexible data rate matching October 14, 2008
This invention relates to a flexible rate matching method, comprising the steps of: a) receiving a continuous stream of data items at a prespecified rate of a clock signal in a configurable data shift register; b) storing, for each data item stored in the data shirt register, an asso
7437175 Synchronization detection methods and apparatus October 14, 2008
Methods and apparatus for determining when uplink synchronization has been achieved when entering or adding a link in soft handover to a new node in a communication system. Transmit power control (TPC) commands from the new link are not included in a TPC command combination until an upli
7437166 Reducing shared downlink radio channel interference by transmitting to multiple mobiles using mu October 14, 2008
A radio base station includes multiple antennas associated with a cell. Multiple mobile radios are selected to receive transmissions over a shared radio channel during a predetermined time interval. Information is transmitted over the shared radio channel to multiple mobile radios in
7436942 System and method for charging in a communication network October 14, 2008
The present invention relates in general to communication networks and more specifically to a system and a method for charging in a communication network, especially in an IP Multimedia network. The new charging system allows charging principles used in traditional telecom networks t
7436901 Selection of channel coding and multidimensional interleaving schemes for improved performance October 14, 2008
One or more radio characteristics are considered to determine selection of one or more of the following: interleaving scheme, channel coding scheme, modulation scheme, and/or transmission scheme. Accounting for these factors and interdependencies improves performance in a mobile radio
7436843 Method for access selection October 14, 2008
A method for selecting the best access for terminals (210) in IP-based multi-access communication systems (200) is provided. The access selection is performed on the network side by an access wizard (261) that communicates with a profile server (262) associated with a number of datab
7436841 Presence functionality in the H.323 protocol October 14, 2008
A Present Application Server (PAS) is holding a presence list for each user is introduced. The presence list of a first user comprises other network registered users for which the first user, wants to track the registration status. The registration status of each user corresponds to
7436788 Dynamic frequency spectrum re-allocation October 14, 2008
A method of dynamically re-allocating a frequency spectrum to a plurality of radio networks (RNs; 16) in accordance with a predefined spectrum allocation scheme is described. A spectrum resource is previously allocated to each RN (16) or group of RNs (16, 16'). An electronic spectrum

 
 
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