Abstract: The invention concerns a method of processing a plurality of data packets in a packet switched communication network comprising at least one switching device (1) as well as a corresponding switching device. The switching device (1) comprises two or more sub-engines (21, . . . , 29). A control unit (7) of the at least one switching device (1) receives a data packet comprising a header (10) of a communication packet exchanged via the communication network. The control unit (7) applies at least one filter operation (50) to the header (10) and generating thereby filtered information (100). The control unit (7) maps the filtered information (100) on a hash-tag (30) according to a hash-function (300). The control unit (7) provides a tagged-header (11) by means of inserting the hash-tag (30) in the header (10) of the data packet. The control unit (7) sends the data packet to a sub-engine (24) of the two or more sub-engines (21, . . .

Abstract: The invention concerns a method of processing a plurality of data packets in a packet switched communication network comprising at least one switching device (1) as well as a corresponding switching device. The switching device (1) comprises two or more sub-engines (21, . . . , 29). A control unit (7) of the at least one switching device (1) receives a data packet comprising a header (10) of a communication packet exchanged via the communication network. The control unit (7) applies at least one filter operation (50) to the header (10) and generating thereby filtered information (100). The control unit (7) maps the filtered information (100) on a hash-tag (30) according to a hash-function (300). The control unit (7) provides a tagged-header (11) by means of inserting the hash-tag (30) in the header (10) of the data packet. The control unit (7) sends the data packet to a sub-engine (24) of the two or more sub-engines (21, . . .

Abstract: A beamforming method in a base station for a mobile communication system, the communication system comprising at least a cell, the method comprising the steps of: covering at least a portion of the cell with a broadcast beam; assigning a streaming beam for each active mobile station on the portion of the cell, if a number of active mobile station on the portion is smaller than a first threshold, wherein a direction of the beams is adjusted according to a position of the active mobile stations. The method further comprises selecting a group of active mobile stations by obtaining at least two active mobile stations with a closest angular distance of all possible pairs of active mobile stations and assigning a single streaming beam to the group of active mobile station, if the number of active mobile stations is bigger than the first threshold.

Abstract: A beamforming method in a base station for a mobile communication system, the communication system comprising at least a cell, the method comprising the steps of: covering at least a portion of the cell with a broadcast beam; assigning a streaming beam for each active mobile station on the portion of the cell, if a number of active mobile station on the portion is smaller than a first threshold, wherein a direction of the beams is adjusted according to a position of the active mobile stations. The method further comprises selecting a group of active mobile stations by obtaining at least two active mobile stations with a closest angular distance of all possible pairs of active mobile stations and assigning a single streaming beam to the group of active mobile station, if the number of active mobile stations is bigger than the first threshold.

Abstract: The present invention relates to an FDD Inband backhauling method for establishing a wireless transmission from at least one access base station to a master base station in a digital cellular communication system, the access base station coupled to at least a mobile station, the access base station coupled to a relay base station, the relay base station coupled to the master base station, the master base station coupled to a core network. The method comprises the steps of: receiving a first signal (s1) by the access base station from the mobile station using a first frequency band (f1); transforming the first frequency band (f1) of the first signal (s1) into the second frequency band (f2) by the access base station; and transmitting the first signal (s1) from the access base station to the relay base station using the second frequency band (f2).

Abstract: A method of increasing the accuracy of geographical information of a mobile station of a radio communication system is described. The geographical information of the mobile station is evaluated without using a GPS receiver. Stored positions of other mobile stations using GPS receivers, are used to adapt the geographical information.

Abstract: A process is proposed for determining the radio reception direction on the downlink at a radio base station location, comprising a plurality of radio coverage areas, in a mobile communications network, in which in each area on the downlink radio signals are radiated by means of a transmitting antenna for reception by at least one mobile communications terminal. For the determination of the radio reception direction, at least the reception levels of the radio signals radiated by a first and a second of the transmitting antennae are measured by the relevant mobile communications terminal. From the two measured reception levels, a ratio value is formed which is independent of the prevailing radio propagation conditions, and this ratio value is used to effect an estimation of azimuthal angles for the radio reception direction to be determined. The invention can thus be implemented in any individual radio base station location, it being unnecessary for there to be contact with a plurality of radio base stations.

Abstract: A method of increasing the accuracy of geographical information of a mobile station of a radio communication system is described. The geographical information of the mobile station is evaluated without using a GPS receiver. Stored positions of other mobile stations using GPS receivers, are used to adapt the geographical information.

Abstract: In a known diversity transmission method, two signals with different identifications are transmitted via two spaced antennas. To be able to apply the diversity principle to more than two antennas, a novel method and a novel base station are proposed. The novel base station comprises two transmitting apparatuses and an assignment apparatus connected thereto which establish connections between each of the two transmitting apparatuses and each of the antennas. The base station further comprises a computing and control apparatus that is connected to the assignment apparatus, which divides the antennas into a first antenna group and a second antenna group, and controls the switching of the connections in such a way that the first antenna group is connected to the first transmitting apparatus, and the second antenna group to the second transmitting apparatus.

Abstract: A process is proposed for determining the radio reception direction on the downlink at a radio base station location, comprising a plurality of radio coverage areas, in a mobile communications network, in which in each area on the downlink radio signals are radiated by means of a transmitting antenna for reception by at least one mobile communications terminal. For the determination of the radio reception direction, at least the reception levels of the radio signals radiated by a first and a second of the transmitting antennae are measured by the relevant mobile communications terminal. From the two measured reception levels, a ratio value is formed which is independent of the prevailing radio propagation conditions, and this ratio value is used to effect an estimation of azimuthal angles for the radio reception direction to be determined. The invention can thus be implemented in any individual radio base station location, it being unnecessary for there to be contact with a plurality of radio base stations.

Abstract: The invention relates to a mobile radio network which provides location-based services to mobile subscribers. To simplify the use of location-based services within the mobile radio network, the network elements of the mobile radio network cause at least one of the base stations to transmit an indicator signal which indicates to the mobile subscriber that at least one location-based service is available. The mobile terminal disclosed receives the indicator signal and causes its display controller and the display connected thereto to generate a new symbol on the display which indicates to the mobile subscriber the availability of the location-based service.

Abstract: The determination of the direction of arrival of a radio signal by an antenna array connected to a base station of a radiocommunications system, particularly of an SDMA (Space Division Multiple Access) mobile radio system, is complicated by multipath. A method is known which uses the so-called ESPRIT algorithm and which is especially suited for a reliable estimation of direction, since the receive level (Sm) and the phase position (.phi.m) are measured for each radiating element and entered in a symmetrical matrix (A) in order to then determine the direction of arrival by eigenvalue decomposition.A simpler and faster method (100) is proposed which involves computing the eigenvector (Wn) corresponding to the dominant eigenvalue (.lambda.1) of this matrix (A), which indicates the direction of arrival (DOA) of the strongest radio signal (S) (steps 130 and 140). The computationally intensive eigenvalue decomposition is eliminated.

Abstract: To assign a carrier frequency to different mobile stations in a conventional Space Division Multiple Access (SDMA) radio system, the stations are differentiated according to the direction in space from which they transmit radio signals to a base station. In addition, the distances between the base station and the mobile stations are compared. To prevent interference at the receiving site (base station BTS), according to the invention a carrier frequency (f) is assigned to the different mobile stations (MS1 to MS3) only if the directions in space (.THETA.1 to .THETA.3) are sufficiently different and the receive levels (P1 to P3) of the radio signals are sufficiently equal. To that end, each mobile station (MS1 to MS3) is assigned a guard area, which encompasses at least a preselected solid angle (lobe width w) and at most a preselected level space (dynamic range S).