Abstract: A method of determining a beam for use in wireless communication is disclosed. The method is performed in a communication device comprising a digital receiver and an analog receiver. The method comprises receiving signaling on an active antenna port by using the digital receiver, measuring power of one or more beams received at one or more of a respective currently inactive antenna ports by using the analog receiver, and determining, the beam for use in the wireless communication by comparing received power of a beam received at the active antenna port to the power of the one or more beams received at the one or more respective currently inactive antenna port, and determining the beam for use to be the beam having the highest received power. A communication device, computer program and computer program products are also disclosed.

Abstract: A method for compressing IQ data for high speed transport link and an associated device. The method comprises: determining, based on dynamical statistical distribution of the IQ data, one or more parameters of a companding function for a nonlinear companding operation (S310); applying the companding function with the determined one or more parameters on the IQ data (S320); performing uniform quantization on the IQ data to generate compressed IQ data (S330); and transmitting the compressed IQ (S340). And a method for decompressing compressed IQ data for high speed transport link, and an associated device.

Abstract: A method a wireless communication device and a corresponding method for a network node of a cellular communication system are disclosed. The network node and the wireless communication device are configured to communicate with each other according to an automatic repeat request (ARQ) protocol having a requirement that a number of time units between reception of an ARQ packet and transmission of an associated response message is smaller than a maximum response time. According to the methods, the wireless communication device transmits at least one measurement gap adaptation signal to the network node. The network node determines a measurement gap configuration of the wireless communication device based on the measurement gap adaptation signal, wherein measurement gaps of the measurement gap configuration have a length smaller than the maximum response time.

Abstract: A method that comprises maintaining, in a first node serving a mobile terminal over a connection protected by at least one first key, said first key and information about the key management capabilities of the mobile terminal. Upon relocation of the mobile terminal to a second node the method includes: if, and only if, said key management capabilities indicate an enhanced key management capability supported by the mobile terminal, modifying, by said first node, the first key, thereby creating a second key; sending, from the first node to the second node, the second key; and transmitting to the second node the information about the key management capabilities of the mobile terminal.

Abstract: In a method for media session management a user terminal upon detecting S0, S00 switching to a media stream on a channel from a unicast transport source, requesting S1 transmission of the media stream by indicating a predetermined starting frame for the transmission and a media server transmitting S2 the requested media frame starting with a media frame as indicated in the request.

Abstract: According to a first aspect of the present invention there is provided a method of operating an XML Document Management Server in an IP Multimedia Subsystem. The method comprises receiving a message from a user terminal requesting an XML document, the XML document conforming to a given structure and containing one or more service rules relating to a service, retrieving an XML document containing said service rules from a data storage entity. If the structure of the retrieved XML document differs from said given structure, adapting a rule or rules of the retrieved XML document such that the XML document conforms to said given structure, and sending the adapted XML document to the user terminal.

Abstract: Methods and devices in a wireless communication system are provided, in which a first portion and a second portion of signals are transmitted on a physical channel to a first transceiver from a second transceiver. A method for controlling transmission parameters in the wireless communication system comprises the steps of: transmitting an indication indicating that the first and the second receiver processing algorithms are used in the first transceiver to process the first and second portions, respectively, of signals received on the physical channel; receiving the indication at the second transceiver; and adjusting, at the second transceiver in response to the indication, a transmission parameter for at least one of the first and second portions of signals to be transmitted on the physical channel to the first transceiver. The indication could be transmitted from the first transceiver, or it could be determined through evaluations carried out at the second transceiver.

Abstract: In a method and a device for partial encryption and progressive transmission of images, a first section of the image file is compressed at reduced quality without decryption, and a second section of the image file is encrypted. Users having access to appropriate decryption keywords can decrypt this second section. The first section together with the decrypted second section can then be viewed as a full quality image. The storage space required for storing the first and section together is essentially the same as the storage space required for storing the unencrypted full quality image. By using the method and device as described herein storage and bandwidth requirements for partially encrypted images is reduced. Furthermore, object based composition and processing of encrypted objects are facilitated, and ROIs can be encrypted. Also, the shape of a ROI can be encrypted and the original object can be decrypted and restored in the compressed domain.

Abstract: Microwave switch (MS) comprising an antenna branch (AB), a receive branch (RB), and a transmit branch (TB). According to one embodiment, the switch comprises a protection circuit (CPL, DTC, CTRL), which upon a high power signal (Dtc_h) being present on the antenna branch effectuates a biasing of semiconductors on both the receive branch (RB) and the transmit branch (TB). According to one embodiment PIN diodes are provided for controlling switching between the transmit and the receiv branch as well as enabling a protective mode, the control being accomplished by selectively biasing respective diodes.

Abstract: A speech encoding/decoding apparatus. A speech encoding apparatus has a coding portion for receiving input information related to an uncoded signal representative of an original speech signal, the coding portion including a fixed coding portion for receiving the input information and producing a first coded signal estimate, and an adaptive coding portion for receiving the input information and producing a second coded signal estimate. A controller is connected to the fixed coding portion and the adaptive coding portion for receiving information indicative of speech characteristics of the uncoded signal and generates a control signal; and a code modifier receives the first coded signal estimate from the fixed coding portion and the control signal from the controller and produces a modified signal estimate.