Abstract: A method for data transmission in a wide area mobile network supporting both MIMO User Equipments and non MIMO User Equipments includes allocating in a first signal the traffic of non MIMO user Equipments, a first MIMO data stream and a primary pilot channel, allocating in a second signal a second MIMO data stream and a secondary pilot channel, and transmitting the first signal and the second signal with two orthogonal circular polarizations.

Abstract: Method for handling terminals in a network using VAMOS technology which performs a “virtual” pairing of the terminal with a simulated call. The method comprises the steps of generating a VAMOS support database with terminal information of terminals in the network; checking in the VAMOS support database for an entry corresponding to terminal information of a given terminal; if no entry is found in the VAMOS support database, pairing the terminal with a simulated call, launched by the network, in a VAMOS channel; measuring at least one indicator parameter of the terminal during the pairing with the simulated call; assigning an entry in the VAMOS support database indicating the applicability of the terminal with VAMOS technology; and allowing VAMOS channelization for the terminal in dependence upon the entry corresponding to the given terminal.

Abstract: Method and RNC for selecting transmission technology when a UE enters the network, which checks whether the UE is MIMO and, if so and only one carrier is available, allocates its traffic to said carrier and uses a S-CPICH to provide all MIMO traffic with a diversity pilot and Virtual Antenna Mapping for balance. If more than one carrier is available, the number of UEs, their radio conditions and load of carriers are checked periodically. If the carrier is busy only with MIMO and its load is higher than the load of the remaining carriers, diversity CPICH of STTD is selected; otherwise and only if the UEs vulnerable to STTD with good radio conditions exceed a certain number, the S-CPICH is selected. The RNC can reconfigure the network from transmitting MIMO traffic with STTD to using MIMO with S-CPICH or vice versa dynamically by periodical check of the load and UEs criteria for configuration change.

Abstract: Method for providing automatic cell access control to high-priority mobile users in overload situation, said high-priority mobile users mapped to at least one of AC 11 to 15, comprising: detecting an overload situation in the mobile network, said overload situation being detected when at least one failure rate parameter exceeds a determined threshold TH1 for each type of failure rate; carrying out at least one action to give more priority to the AC associated with said high-priority mobile users. Said action can comprise dedicating PRACH resources specifically to the AC associated with said high-priority mobile users and/or activating access class barring for, at least, part of the users associated with any of AC 0 to 9.

Abstract: The present invention discloses a method for selecting a transmission technology (MIMO or non MIMO) for a HSDPA connection established between a RNC and a UE depending on the mobility of said UE, measured at the RNC as variations of the position of the UE. Then, if the connection is established with HSDPA MIMO technology and the position variations exceed a first pre-defined threshold, the connection is switched to HSPDA non MIMO technology. Also, if the connection is established with HSPDA non MIMO technology and the position variations are below a second pre-defined threshold, the connection is switched to HSPDA MIMO technology.

Abstract: System and method for transmitting a radio signal in a mobile communication network. The radio signal has a circular polarisation.

Abstract: Method for handling terminals in a network using VAMOS technology which performs a “virtual” pairing of the terminal with a simulated call. The method comprises the steps of generating a VAMOS support database with terminal information of terminals in the network; checking in the VAMOS support database for an entry corresponding to terminal information of a given terminal; if no entry is found in the VAMOS support database, pairing the terminal with a simulated call, launched by the network, in a VAMOS channel; measuring at least one indicator parameter of the terminal during the pairing with the simulated call; assigning an entry in the VAMOS support database indicating the applicability of the terminal with VAMOS technology; and allowing VAMOS channelization for the terminal in dependence upon the entry corresponding to the given terminal.

Abstract: To determine which traffic and terminal types and in which parts of a call should be best served by a given carrier there is provided a method and system for dynamically allocating carriers in a MIMO network using S-CPICH. The consideration of which carrier to allocate addresses problems caused by the enablement of the diversity transmission technique. Carriers are dynamically allocated to terminals in a WCDMA network scenario taking into account each terminal's vulnerability to interference from a carrier using S-CPICH or STTD according to certain parameters, such as a requested service or the radio conditions at any given time. The carriers are allocated from carriers using P-CPICH, S-CPICH and/or STTD. The invention also relates to a system that implements this method in a WCDMA network.

Abstract: A system and method are described for detecting and controlling the phase difference introduced to radio signals by transmission branches of a transmission system in a mobile communication network. Periodically a calibration signal is generated at an input of the transmission branches during a phase calibration mode. The phase difference introduced by the two transmission branches is detected by detecting the phase difference between the calibration signal, which has at least partly passed through the first transmission branch and the calibration signal, which has at least partly passed through the second transmission branch. The phase difference between the radio signals is controlled based on the detected phase difference.

Abstract: Method and RNC for selecting transmission technology when a UE enters the network, which checks whether the UE is MIMO and, if so and only one carrier is available, allocates its traffic to said carrier and uses a S-CPICH to provide all MIMO traffic with a diversity pilot and Virtual Antenna Mapping for balance. If more than one carrier is available, the number of UEs, their radio conditions and load of carriers are checked periodically. If the carrier is busy only with MIMO and its load is higher than the load of the remaining carriers, diversity CPICH of STTD is selected; otherwise and only if the UEs vulnerable to STTD with good radio conditions exceed a certain number, the S-CPICH is selected. The RNC can reconfigure the network from transmitting MIMO traffic with STTD to using MIMO with S-CPICH or vice versa dynamically by periodical check of the load and UEs criteria for configuration change.

Abstract: Method and system for data transmission in a wide area mobile network supporting both MIMO User Equipments and non MIMO User Equipments, comprising: Allocating in a first signal (6a) the traffic of non MIMO user Equipments (9), a first MIMO data stream and a primary pilot channel. Allocating in a second signal (6b) a second MIMO data stream and a secondary pilot channel. Transmitting the first signal (6a) and the second signal (6b) with two orthogonal circular polarizations.

Abstract: To determine which traffic and terminal types and in which parts of a call should be best served by a given carrier there is provided a method and system for dynamically allocating carriers in a MIMO network using S-CPICH. The consideration of which carrier to allocate addresses problems caused by the enablement of the diversity transmission technique. Carriers are dynamically allocated to terminals in a WCDMA network scenario taking into account each terminal's vulnerability to interference from a carrier using S-CPICH or STTD according to certain parameters, such as a requested service or the radio conditions at any given time. The carriers are allocated from carriers using P-CPICH, S-CPICH and/or STTD. The invention also relates to a system that implements this method in a WCDMA network.

Abstract: System and method for transmitting a radio signal in a mobile communication network. The radio signal has a circular polarisation.

Abstract: Method and RNC for selecting a transmission technology to MIMO UEs, HSDPA UEs and non-HSDPA UEs of a network with multiple carriers, comprising: checking whether the UE is a MIMO UE; using STTD on at least one radio carrier and allocating MIMO traffic to it, checking whether the UE is a HSDPA UE vulnerable to STTD and comparing the radio conditions with at least one quality threshold, and if the UE is vulnerable to STTD and the radio conditions are equal to or higher than the first quality threshold (good radio conditions), allocating its traffic to any of the remaining radio carriers free of MIMO traffic; if the UE is vulnerable to STTD and the radio conditions are lower than the first quality threshold (medium or bad radio conditions), allocating its traffic to any carrier on a frequency selection basis, for example, relative load among carriers.

Abstract: The present invention discloses a method for selecting a transmission technology (MIMO or non MIMO) for a HSDPA connection established between a RNC and a UE depending on the mobility of said UE, measured at the RNC as variations of the position of the UE. Then, if the connection is established with HSDPA MIMO technology and the position variations exceed a first pre-defined threshold, the connection is switched to HSPDA non MIMO technology.

Abstract: A method is described for routing traffic between a base station and a next network node in a cellular communication network over one of a plurality of paths between them having mutually different latency levels. The path over which the traffic is routed is selected based on latency requirements of the traffic and the latency level of the paths. The latency requirements of the traffic are dependent on the service and/or user of the traffic.

Abstract: Method for providing automatic cell access control to high-priority mobile users in overload situation, said high-priority mobile users mapped to at least one of AC 11 to 15, comprising: detecting an overload situation in the mobile network, said overload situation being detected when at least one failure rate parameter exceeds a determined threshold TH1 for each type of failure rate; carrying out at least one action to give more priority to the AC associated with said high-priority mobile users. Said action can comprise dedicating PRACH resources specifically to the AC associated with said high-priority mobile users and/or activating access class barring for, at least, part of the users associated with any of AC 0 to 9.