摘要:
The invention relates to a method for transmission of data in a wireless network comprising a plurality of base stations broadcasting data at a same frequency and a plurality of mobile terminals. In order to overcome inter-cell transfer at the level of mobile terminals, the method comprises: assignments of first and second sub-sets of base stations at respectively at least a first and at least a second mobile terminal, the assignments varying in time according to first and second parameters, the two sub-sets having at least one base station in common and each at least having a specific base station, synchronized transmissions of respectively the base stations of the first and second sub-set of first and second specific data modulated with first and second modulations to respectively the at least first and second mobile terminals. The invention also relates to the corresponding method for reception of data.
摘要:
The invention relates to an emission method for a wireless network comprising a plurality of stations emitting at the same frequency. In order to optimize the use of radio channels, the method comprises the following steps implemented by at least one relay station RS of the plurality of stations: reception via a first wireless channel of a first signal (512) representative of data (503), and emission via a second wireless channel of a second signal (514) representative of the same received data (503) to an assembly comprising at least one receiver, the second signal being emitted synchronously with a third signal (504) representative of the same data (503) and intended to be emitted by at least one base station BS1 of the plurality of stations. The invention also relates to the corresponding reception method.
摘要:
The invention relates to a method for transmission in a wireless network comprising a plurality of base stations and at least one mobile terminal, a mobile terminal (MT) transmitting a same signal (704) intended for the plurality of base stations (BS1,BS2, BS3). In order to optimise the synchronisation of the mobile terminal with the plurality of base stations, the method comprises a step of transmission of an item of information representative of a first temporal offset intended for the mobile terminal, the first offset being according to at least one reception time (740, 750, 760) of the first signal by at least one base station (BS1,BS2,BS3).
摘要:
The invention relates to a method for transmission of data in a wireless network comprising a plurality of base stations broadcasting data at a same frequency and a plurality of mobile terminals. In order to overcome inter-cell transfer at the level of mobile terminals, the method comprises: assignments of first and second sub-sets of base stations at respectively at least a first and at least a second mobile terminal, the assignments varying in time according to first and second parameters, the two sub-sets having at least one base station in common and each at least having a specific base station, synchronized transmissions of respectively the base stations of the first and second sub-set of first and second specific data modulated with first and second modulations to respectively the at least first and second mobile terminals. The invention also relates to the corresponding method for reception of data.
摘要:
The invention relates to a method for transmission in a wireless network comprising a plurality of base stations and at least one mobile terminal, a mobile terminal (MT) transmitting a same signal (704) intended for the plurality of base stations (BS1, BS2, BS3). In order to optimise the synchronisation of the mobile terminal with the plurality of base stations, the method comprises a step of transmission of an item of information representative of a first temporal offset intended for the mobile terminal, the first offset being according to at least one reception time (740, 750, 760) of the first signal by at least one base station (BS1, BS2, BS3).The invention also relates to the corresponding method for reception.
摘要:
The invention proposes an H-plane filter with inductive irises which exhibits a quasi-elliptic response while retaining the same compactness as a filter having a Chebyshev response. The invention furthermore makes it possible to use a large number of transmission zeros. For this purpose, there is proposed a waveguide filter comprising at least one cavity delimited by at least two inductive irises. The filter furthermore comprises at least one floating insert 1 placed in one of the inductive irises. The invention is also a process for manufacturing the waveguide filter incorporating at least one insert.
摘要:
Waveguide filters for filters operating at millimeter wavelengths which require high accuracy. The filter includes a plurality of discs held in the cylinder of a support. Each disc has a recess defining cavity size. The various parts forming the filter are simplified thereby making it possible to reduce production costs while providing good accuracy.
摘要:
Method for transmission of data packets by a first station, the packets being intended for a destination node belonging to a network comprising a second station, said packets being transmitted by said first station to said destination node via said second station. In order to simplify the transmission, the method comprises: a routing of a set of at least one of the packets to the second station, a classification associated with the second station, the classification assigning a connection between the first station and the second station to the set of at least one of the packets, a transmission step of the set on the assigned connection.
摘要:
In order to simplify the management of packets to be transmitted, we implement: a writing to a first register of at least one descriptor of packets to be transmitted, each descriptor of packets to be transmitted comprising information representative of a status of each packet belonging to the set, the status of each packet indicating whether the packet is or is not to be transmitted; determination of the first packet of data to be transmitted on the basis of the content of the first register and recording of an identifier of the first packet of data to be transmitted in a second register; and transmission of a set of data packets.
摘要:
The invention proposes a transmitting/receiving device comprising at least one transition zone which comprises a means of transforming a polarized wave of a first polarization into an electrical signal; a second means of transforming an electrical signal into a polarized wave of the second polarization; and a first filtering zone placed between the antenna and the transition zone, the first filtering zone comprising a waveguide filter polarized in the second polarization direction, the said filter being transparent in the first polarization direction.