Abstract: An Ethernet switch and method for handling received unicast packets having a destination address unknown to the switch. Each such unicast packet is queued in a flooding buffer in every interfacing output port of the switch. The packets in the flooding buffer are scheduled as lowest priority traffic.

Abstract: A method and an arrangement for obtaining efficient radio resource utilization in a communication network comprising a first communication network entity (10), a second communication network entity (15) connected to said first communication network over a communication interface and one or more user equipments (18) transmitting data to said second communication network entity (15) over a radio interface. The user equipments (18) perform the step of autonomously selecting a hybrid automatic retransmission request (HARQ) operating point in order to efficiently deliver transmitted data.

Abstract: A method of and a system for establishing presence of a mobile station in at least one dedicated service area of a mobile telecommunications system providing service to a plurality of geographically spread service areas. A mobile station is triggered to provide location information relating to the presence of the mobile station at a location receiving service from a service area comprising the or each dedicated service area. Presence of the mobile station in the or each dedicated service area is established by comparing the location information provided by the mobile station and stored location information relating to the or each dedicated service area. If present in a dedicated service area, the mobile station automatically receives dedicated services to which the mobile unit is entitled to. Receipt of dedicated services is automatically indicated to a user of the mobile station.

Abstract: The present invention relates to a method for improving IP fragmentation and transmission of user payload between a User Equipment, UE 10, and a Peer Node, PN 14. The payload is transmitted through a transmission path enabled by at least a first 17,18 and a second 17,18 established tunnel, said tunnels connecting a first 11, 13 and a second 11,13 node in a Packet Core Network, PCN. The method comprises the steps of: The first node 11,13 fragments 19 at least one received payload packet 15 into fragments 16 on the basis of a minimum Maximum Transmission Unit, MTU, for an upper IP layer of the transmission path. The first node 11,13 encapsulates 20 said fragments at the entry of the first tunnel 17,18.

Abstract: The embodiments of the present invention relate to methods and apparatuses (600, 700) for coordinating interference in a telecommunications LTE based system. According to exemplary embodiments, an apparatus acting as a macro radio base station (eNB) (600) is configured to decide on what radio resources to schedule to its UEs and further decide on what resources to leave unutilized. Information on the decided resources is further transmitted in an interference coordinate signalling message, to at least one relay node (RN) (700) via at least one layer (1) control channel. The interference coordination signalling message will assist the RN (700) to make its own scheduling decision based on the information in the signalling message.

Abstract: The invention discloses an RF ASIC, (100), which comprises first (110) and second (130) plane conductors arranged parallel to each other with an isolating material (120) of a certain thickness (d) between them, and a ground plane (150) arranged in parallel to said conductors and at a certain distance (h) from the nearest conductor. Each conductor (110, 130) is shaped as a rectangle with a width (W) and a length (L) such that the length exceeds the width, so that each conductor has opposing short sides and opposing long sides. Each conductor exhibits a connector (1, 2, 3, 4) at each of its short sides, and the ASIC can be used as a transformer by using the connectors (1, 2) on one opposing short side as input ports to the transformer, and the connectors (3, 4) on the other opposing short side as output ports.

Abstract: A superheterodyne receiver includes an A/D converter for converting an IF signal to a stream of samples at a sampling frequency that is four times the IF and a splitter that splits the stream of samples into a first set of even samples and a second set of odd samples. A first quadrature demodulator demodulates just the first set of even samples to produce one of real (I) and imaginary (Q) components of a complex signal at one half of the sampling frequency, and a second, parallel quadrature demodulator demodulates just the second set of odd samples to produce the other of the I and Q components. The demodulated first set is filtered using a first subset of filter coefficients, and the demodulated second set is filtered using a second subset of filter coefficients. The filter outputs correspond to a baseband complex signal. The technology disclosed reduces overall hardware complexity and operating frequency by a factor of two or more.

Abstract: The present invention relates to a method for improving parameter cache in a communication system, the system enabling Machine Type Communication, MTC, connection between at least one MTC device (10) and at least one MTC server (11), via a Packet Data Network, PDN, connection. The communication system for at least a first MTC connection performing the steps of: a Gateway, GW (17), in the communication system establishing (23) a new Gx session with a Policy Control Node, PCN (15), the PCN (15) performing (24) session binding with the GW (17), The method is particularly characterized in that the communication system further performs the step of: when the first MTC connection has been inactive for a certain time period, the GW (17) as part of a cache upload procedure sends (25) a first set of PDN connection parameters to the PCN (15) and releases memory resources associated with this first set of PDN connection parameters.

Abstract: A base station node (BS) of a heterogeneous radio access network comprises a terminal locator (34) and a scheduler (36). The terminal locator (34) obtains an indication of location of a wireless terminal (30) in a cell served by the base station (BS), e.g., whether the wireless terminal (30) is in a center region (M) or an edge region (E) for the cell served by the base station node (BS). The scheduler (36) uses the indication of location to assign to the wireless terminal (30) a frequency of a frequency bandwidth usable by the heterogeneous radio access network. The scheduler (36) assigns a frequency from a partitioned portion of the frequency bandwidth if the cell served by the base station node is a micro cell and the wireless terminal is in an edge region of a micro cell. The scheduler (36) also assigns a frequency of the frequency bandwidth if the cell served by the base station node is a micro cell and the wireless terminal is in a center portion of the micro cell.

Abstract: Mobility-based radio resource assignment methods, systems and devices can assign user equipment to different nonoverlapping groups of radio resources depending on mobility of the user equipment. The groups of radio resources are nonoverlapping in time, frequency and/or code. For example, the groups of radio resources can include different pilot symbol densities, link adaptation and/or scheduling algorithms. The radio resources may be Long Term Evolution (LTE) radio resources.

Abstract: Presented is a system and methods for allowing a user, through their end user device, to online purchase a service from a service provider and provide online payment for the service from the operator network associated with the end user device. The service provider and the operator network can authenticate each other through encrypted data appended to HTTP communications associated with interacting on the internet.

Abstract: The present invention relates to a transceiver unit in a PON, Passive Optical Network, for receiving an optical input signal and transmitting an amplitude modulated optical output signal. Further, the present invention relates to a method in a transceiver unit for receiving an optical input signal and transmitting an amplitude modulated optical output signal.

Abstract: A LDAP collision detection mechanism and a method are described herein that allow a LDAP client to detect and avoid an update operation collision on an entry within a LDAP directory. The method includes the steps of: (a) reading data from the entry in the directory; (b) processing the retrieved data; (c) sending a request to modify the data in the entry in the directory, wherein the client is assured that the requested modification will not be performed by the directory if another client had previously performed a modification on the data within the entry that was originally read by the client. There are several different embodiments of the LDAP collision detection mechanism and the method described herein.

Abstract: A transmit circuit reduces undesired amplitude modulation (AM) in transmit signal pulses by substituting predetermined amplitude information for actual pulse amplitude information during portions of the pulse corresponding to nominally constant amplitudes. For example, GMSK and certain other modulation formats use a desired transmit pulse shape that includes a nominally flat middle portion. An exemplary AM reduction circuit detects generated pulse values corresponding to the nominally constant-amplitude portions of the transmit pulse and substitutes predetermined, preferably constant, amplitude values in their place. As such, the circuit may include a comparator used to detect the pulse values corresponding to variable amplitude portions of the pulse, which it passes through, and to detect those amplitude values corresponding to constant-amplitude portions of the pulse, which it replaces with substituted values. Such operation may include amplitude value filtering, and such operations may be modal, e.g.

Abstract: An encoding/decoding method, an coder/decoder (codec) and a radio communication device utilize a variable offset coding technique. In accordance with the technique, the start of processing of a first frame is time offset in relation to the end of the processing of the frame that precedes the first frame, the time offset bringing about a time gap between the end of the preceding frame and the start of processing the first frame. A substitution signal is inserted in the time gap.

Abstract: Methods and apparatus for securely streaming multimedia packets, such as RTP packets, are disclosed, in which the payloads of the packets are shuffled. This reordering is performed using a shuffling function that depends on sequence numbers associated with each of the packets, a pre-determined group size N, and a pre-determined initialization value; in some embodiments this shuffling function comprises a cryptographic hashing function or other one-way function. A receiving device may reverse the shuffling, using a similar shuffling function, if the pre-determined group size N and the pre-determined initialization value are known.

Abstract: A method and apparatus for processing a digital image in a Mobile Equipment operating in a telecommunications network. The digital image includes a frame of data having a plurality of pixels with data. The data of each pixel has a luminance value and a chrominance value. The method begins by obtaining chrominance value for a specified pixel of the digital image. Responsive to the obtained chrominance value, a strength to filter the specified pixel of digital image is determined. The specified pixel is then selectively and adaptively filtered at the determined strength of the filter. Preferably, chrominance values and luminance values for the specified pixel and an adjacent pixel is determined. A threshold for a variation in the range between a highest chrominance level and a lowest chrominance level of the specified pixel and the adjacent pixel is then set. The variation for the specified pixel is determined, and responsive to the value of the variation, low-pass filtering of the specified pixel is applied.

Abstract: The present invention relates to automatic repeat request (ARQ) in wireless communication systems wherein a coded message block is spread over a plurality of sub-carriers or components. According to the invention an equalizing HARQ method is introduced. The equalizing HARQ identifies (215) and retransmits (230) the most distorted parts of a received coded message block. In addition, the retransmitted parts can optionally be relocated (225) to components of higher quality, which ensures good retransmission quality for those badly distorted parts in the prior transmission. After a soft-bit combination in a receiving node, the final received codeword experience an equalized quality variation with low multi-state performance loss.

Abstract: The second-order inter-modulation distortion, originating in a differential passive mixer core from imbalance between devices, is reduced by compensating for the mismatch or load, by means of tuning the differential output impedance at the mixer core, or the input impedance of a filter coupled to the output of the passive mixer. Compensating for the imbalance allows greater suppression of even-order harmonics in the differential structure, which reduces second-order intermodulation at the output of the mixers. The compensation is achieved by tunable resistive elements that are calibrated by a built-in self-test architecture. The calibration circuit is deactivated during receiver operation.

Abstract: According to a method and apparatus taught herein, a network node includes a receiver circuit that determines soft values for received packets corresponding to the information bit groups associated with network coding operations, where the soft values are determined for each information bit group based on joint probabilities of the information bits within the information bit group. For example, first soft values are determined for the information bit groups in a first (received) constituent packet and second soft values are likewise determined for the information bit groups in a network-coded (received) packet that depends on the first constituent packet and a second constituent packet. Third soft values are generated for the information bit groups of the second constituent packet based on jointly evaluating the first and second soft values.