Vodafone Group Plc.

Vodafone IP Licensing Limited

Vodafone Espana, S.a.

Vodafone Espana, S.a.u.

Javier López Roman

Yannick Le Pezennec

Brendan McWilliams

Santiago Tenorio Sanz

Julio Urbano Ruiz

Andrea De Pasquale

Clara Serrano Solsona

Kyriakos Exadaktylos

Esperanza Alcazar Viguera

Francisco Javier Dominguez Romero

Beatriz Garriga Muñiz

Maria Diaz Mateos

Aitor García Viñas

Miguel Arranz Arauzo

Mai Tran Le

Altor Garcia Viñas

Elisa Isabel Cervantes Cañavate

Manuel Lopez Roman

Clara Serrano Solsana

Brendan Mcwilliams

Marco Manuel Sierra

A transmission system and method for use in a mobile communication network comprising an active antenna arrangement of multiple antennas. The active antenna arrangement comprising several pairs of radiofrequency sub-modules each radiofrequency sub-module including a first phase shifter module, a TRX module and a radiating antenna element and where an dynamic phase offset is applied to one of the sub-modules of each pair, and where the phase offset vector is selected according to the signal quality received by users of the mobile communication network using an algorithm which minimizes the duration of the selection process.

System and method for enhanced transmission in mobile communication networks using an active antenna arrangement

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.

Data transmission in a wide area mobile network

Method and system for improving the performance of mobile communication networks. The method and system employs the additional functionality whereby an additional phase offset can be applied to one of the physical paths (one physical antenna) in order to modify and adapt the transmit polarization. In the preferred embodiment, the criterion for selecting the additional phase offset will be to maximize the energy received from the HSPA serving cell by the legacy HSDPA user equipments.

Method and system for enhanced transmission in mobile communication networks

The invention relates to data transmission in radio communication networks, the object of the invention multiband directional antenna comprising a multidimensional array structure and having more than one director working in active or passive mode according to the working frequency.

Antenna arrangement

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.

Selecting transmission technology for communications in wide area mobile networks

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.

Selecting a transmission technology

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

Transmitting a radio signal in a mobile communication network

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.

Dynamically allocating carriers

A method of selecting a cell from a certain active set of cells () to become serving cell for a mobile terminal () instead of the primary cell () of said active set of cells () during a call in a mobile communications network implementing soft handover, the method comprising the steps of: determining whether the radio access bearer (RAB) of said call is being served on a soft handover area or not, and: if said call is being served on a soft handover area, determining whether the user of said mobile terminal () can be considered static or in motion, and: if said user of said mobile terminal () is considered static, comparing the load of said primary cell () to the load of at least one of the remaining cells () within the active set (), and: if the load of said primary cell () exceeds the load of said at least one of said remaining cells () within the active set () by a predetermined factor, transferring the downlink user plane from said primary cell () to said cell () of said remaining cells within the active set (), which is less loaded than said primary cell.

Method of cell assignment in cellular communications networks using macrodiversity

An active antenna with an IP address including a first set of modules (Mi) and a second set of modules (M'j), both sets using a same hardware platform and each set integrating radiofrequency sub-modules. Further including at least an Ethernet connection to the core network for providing the active antenna with capability of operation from an anchor site, and a digital platform integrating a set of modules for base-band processing, operating in one or more of 2G, 3G and LTE technologies. The active antenna includes processing apparatus for control plane of 2G and 3G radio access networks, routing apparatus for lu, Gb or S1 data relay from/to the core network to provide the active antenna with capability of operation from a relay site. Further included is at least two optical ports for connection in chain with a pair of active antennas in the same relay site and a power supply connection.

Growing community of inventors

Madrid, Spain

Javier López Roman