Abstract: The invention relates to a method (MET1) for transmitting data from a first network node (BS) of a radio access network of a radio communication system to a second network node (MS) of the radio access network, and wherein the method (MET1) comprises the steps of transmitting (M1/6) a first negative acknowledgement (N1) from the second network node (MS), if the second network node (MS) cannot recover error free first data (D1), the first data (D1) being data from a single data source of the radio access network or for a single data sink of the radio access network, determining (M1/11) a combination (COMB1) of the first data (D1) and of at least second data (D2) by applying a superposition of the first data (D1) and the at least second data (D2), the at least second data (D2) being further data from the single data source or for the single data sink, and transmitting (M1/18) the combination (COMB1) to the second network node (MS).

Abstract: In one embodiment, a request is sent to a relay node (RN) requesting the RN to perform a signal measurement operation. The request includes an indication to measure a signal strength of a link between the RN and a user equipment (UE). A signal measurement value is received from relay node, a determination on whether to associate the UE with the RN is made based on the signal measurement value.

Abstract: The present invention relates to a method of sending first and second signals to a plurality of user equipments, the method comprising the steps of providing of a dedicated channel for each one of the plurality of user equipments, providing of a code-multiplexed shared channel for the plurality of user equipments, assigning of an antenna of a set of antennas to each one of the user equipments, sending of one of the first signals to one of the plurality of user equipments on one of the dedicated channels on a carrier frequency by applying transmit diversity, sending of one of the second signals to one of the plurality of user equipments on the code-multiplexed shared channel on the carrier frequency by applying multi-user diversity.

Abstract: The present invention relates to a method of transmitting data over first and second channels, the first channels having a predefined grade of service and the second channels having a variable grade of service, the method comprising: determining a load of a transmit power amplifier, determining a share of the load which is due to the transmission over the first channels, determining a difference between a maximum load and the share, controlling the transmission over the second channels on the basis of the difference.

Abstract: A method for allocating HS-DSCH channelisation codes in WCDMA based wireless communication system using HSDPA in which a total number of N HS-DSCH channelisation codes are available. M<N HS-DSCH channelisation codes are allocated upon request by a RNC such that a node B can service UE's. The node B identifies which of the HS-DSCH channelisation codes are currently unused for transmissions and autonomously allocates at least one of the unused HS-DSCH channelisation codes for servicing UE's.

Abstract: A method for providing a static beam forming in a wireless communication system using an antenna arrangement of a base station which shapes at least one fixed beams, whereby the antenna arrangement covers at least two cells, each cell being covered by at least two beams. The at least two beams covering a cell use the same scrambling code and the same phase reference, whereby the base station autonomously decides which of the at least two fixed beams covering a cell should service a channel.

Abstract: The invention relates to wireless communication networks, and to the way in which communication devices choose their transmission power when communicating with each other. More specifically, the invention relates to a method of controlling the transmission power of a first communication device in a wireless communications network based on the UMTS standard, the first communication device having established a HSDPA connection to a second communication device, whereby the absolute value of the difference between the HSDPA transmission power in a first transmission time interval (tti1) and the HSDPA transmission power in a subsequent second transmission time interval (tti2) is chosen to be smaller than a predetermined value (v). Furthermore, the invention relates to a node B which can carry out the method mentioned above, and power control means associated with said node B.

Abstract: The invention concerns a method for selection of the appropriate HARQ (Hybrid Automatic Repetition Request) retransmission scheme within a base station for data transmission over a communication network to a terminal, whereby said selection is performed repeatedly during data transmission by means of at least one parameter that defines the data transmission.

Abstract: In many telecommunication systems, message signals which include a predefined sample bit sequence (training sequence) are transmitted, to improve the signal processing in the receiver, particularly the equalization. For this purpose, on the basis of the sample bit sequence, the channel pulse response is estimated within an iterative method. Extending the sample bit sequence by those bits which result from the reconstruction of the transmitted signal is known. It is here proposed that the equalization stage is synchronized to the received signal, by using at least the second channel pulse response which is estimated using the extended sample bit sequence. For this purpose, the receiver includes suitable synchronization means. In this way, it is achieved that the equalization is precisely adapted to the temporal course of the channel pulse response, so that the equalization of the received signal can be significantly improved. In tests, improvements to the signal-to-noise ratio of about 0.5 dB were achieved.

Abstract: The present invention provides a method of estimating a channel quality of a wireless data transmission channel on the basis of channel quality indicators. By means of estimating the channel quality an accurate and momentary channel quality of a data transmission channel can be obtained on the basis of non-momentary CQIs that may be subject to measurement inaccuracies, delay or that may feature unacceptable quality due to e.g. high velocity movement of a mobile station. The invention provides determination of the quality and reliability of an obtained channel quality indicator and to select and to successively apply one or a plurality of various estimation procedures in order to determine an accurate and momentary channel quality indicator. Moreover, by making use of an iterative calibration procedure a CQI is determined such that a systematic offset between a defined transmission quality measure and an actually measured transmission quality can be effectively eliminated.

Abstract: The invention refers to a mobile radio communication system (1) for downlink transmission and to a method for transmitting a signal (s) across at least two downlink paths (5, 6) of a multiple antenna (3, 4) mobile radio communication system (1). The system (1) comprises: a base station (2) comprising a plurality of antennas (3, 4); at least one mobile user equipment (8); at least two downlink paths (5, 6) across at least two of the antennas (3, 4) for transmitting a signal (s) from the base station (2) to the at least one user equipment (8), each downlink path (5, 6) comprising a complex channel coefficient (h1, h2); and a feedback path (9) for returning information on at least one complex weight (w) from the user equipment (8) to the base station (2), the at least one complex weight (w) being used for multiplying the signal (s) which is transmitted across at least two of the downlink paths (6).

Abstract: A transmitting diversity system for wireless transmission of information to a receiver station comprising antenna means composed of a plurality of antenna groups, and each group consisting of a plurality of antennas; receiving means for receiving feedback information from the receiver station using a feedback channel for intra antenna group control; control means for controlling a phase and/or amplitude of a signal transmitted by the antenna means based on said feedback information; and an open-loop transmission diversity encoder for encoding of the signal to be transmitted to the receiver station by every antenna group. It also relates to a method for transmitting a wireless signal to a receiver station by means of a transmitting diversity system having at least four antennas, the antennas arranged in groups; and to a base station and a mobile station comprising such a transmitting diversity system.

Abstract: The present invention relates to a communication method in a wireless cellular telecommunication system comprising at least one base station having a beam forming capability, the method comprising the steps of receiving at least a first pilot signal being assigned to a first beam and a second pilot signal being assigned to a second beam by a user equipment, measuring the signal strengths of the at least first and second pilot signals, selecting one of the at least first and second beams having the strongest pilot signal, signalling of the beam selection to the base station and switching off data channels to the user equipment of the beams which have not been selected by the user equipment.

Abstract: The invention relates to a network component and to a method for transmitting a signal between a terminal and a network component, the method comprising the steps of:

Abstract: The present invention relates to a method of transmitting data over first and second channels, the first channels having a predefined grade of service and the second channels having a variable grade of service, the method comprising: determining a load of a transmit power amplifier, determining a share of the load which is due to the transmission over the first channels, determining a difference between a maximum load and the share, controlling the transmission over the second channels on the basis of the difference.

Abstract: The present invention relates to a telecommunication system having a first component for providing of a dedicated channel for each one of the plurality of user equipments, a second component for assigning a carrier frequency of a set of at least first and second carrier frequencies to each one of the dedicated channels, a third component for providing of a code-multiplexed shared channel for the plurality of user equipments, a fourth component for sending of one of the first signals to one of the plurality of user equipments on the dedicated channel of that user equipment on the assigned carrier frequency by applying a transmit diversity scheme and a fifth component for sending of one of the second signals to one of the plurality of user equipments on the code-multiplexed shared channel on the carrier frequency being assigned to that user equipment by applying a multi-user diversity scheme.

Abstract: The present invention relates to a method of sending first and second signals to a plurality of user equipments, the method comprising the steps of providing of a dedicated channel for each one of the plurality of user equipments, providing of a code-multiplexed shared channel for the plurality of user equipments, assigning of an antenna of a set of antennas to each one of the user equipments, sending of one of the first signals to one of the plurality of user equipments on one of the dedicated channels on a carrier frequency by applying transmit diversity, sending of one of the second signals to one of the plurality of user equipments on the code-multiplexed shared channel on the carrier frequency by applying multi-user diversity.

Abstract: A method of processing radio signals received via multiple antennas in a radio receiver having at least one of the following: at least two antennas, each antenna delivering in use an antenna signal; at least two elements of an antenna array, each antenna element delivering an antenna signal; at least two antenna arrays each having a plurality of antenna elements, each antenna array delivering an antenna signal; the antenna signals being combined to deliver a combined signal, wherein for each antenna signal an iterative channel estimation is performed to control the combining process of the antenna signals. Advantages of the invention are improvement of error rate performance of multiple antenna radio receivers, because the antenna gain can be enhanced due to reducing the combining losses.

Abstract: In many telecommunication systems, message signals which include a predefined sample bit sequence (training sequence) are transmitted, to improve the signal processing in the receiver, particularly the equalization. For this purpose, on the basis of the sample bit sequence, the channel pulse response is estimated within an iterative method. Extending the sample bit sequence by those bits which result from the reconstruction of the transmitted signal is known. It is here proposed that the equalization stage is synchronized to the received signal, by using at least the second channel pulse response which is estimated using the extended sample bit sequence. For this purpose, the receiver includes suitable synchronization means. In this way, it is achieved that the equalization is precisely adapted to the temporal course of the channel pulse response, so that the equalization of the received signal can be significantly improved. In tests, improvements to the signal-to-noise ratio of about 0.5 dB were achieved.

Abstract: In a transmission system or a recording systems often codes are used to make the coded signal (C.sub.k) DC free. To simplify the detector (16), block codes can be preferable. To exploit the redundancy inherently present in such a code a symbol wise Viterbi detector (24,26) is used to detect the symbols without largely enlarging the complexity of the system.