France Telecom Sa

France Telecom

Olivier Roussel

Jean-Paul Quinquis

Laurent Hue

Thierry Houdoin

Jean-Yves Cochennec

A procedure is provided for transmitting packets of variable length, such as AAL2 packets and permitting the transmission of cells such as ATM cells, in time-division circuits such as E1/T1 frames, each divided into a number of time slots, each occupied by an eight-bit byte. The consecutive eight-bit bytes of each packet of variable length and of each cell are located in the slots of consecutive time of at least one group of time slots of the frames. The first eight-bit byte of a packet or a cell is placed at a time slot marked by a pointer occupying a specific time slot of the corresponding group of time slots.

Method for transporting variable-length packets in temporal circuit frames

An access network for mobile terminals includes a switch arranged to be connected to at least one external network and a local access network connected to a plurality of radio base stations. Each base station is arranged to enter into communication with mobile terminals, each terminal being arranged for receiving or sending user cells on a virtual channel identifiable by a fixed virtual path identifier and a specific virtual circuit identifier allocated thereto at the time a call is established. Signaling cells on a virtual channel are identified by a specific virtual path identifier and a specific fixed virtual circuit identifier. The switch allocates a virtual path identifier and a virtual circuit identifier to each user channel. To each signaling channel, the switch allocates a virtual path identifier equal to the virtual path identifier of the user circuit and a fixed virtual circuit identifier.

Access network for mobile terminals

An access network for mobile terminals has a switching circuit (VCX) connected to at least one other external network and to a local access network (RLA) which has a number of radio terminals (BR) for providing communication with mobile terminals (MT). Set-up and release protocols provide for signaling channels and user channels between switching circuit (VCX) and a mobile terminal (MT). Security protocol (SSCOP) provides for the channels implemented by exchanging signaling messages at the level of switching circuit (VCX) and mobile terminals (MT). An adaptation server (ARX) intercepts the messages sent by the signaling protocols and implements the intercepted messages. Management protocols of the local access network (RLA) oversee set up and release of the signaling channels and the user channels and reserves corresponding radio resources for the signaling channels.

Access for mobile terminals network

A local mobile access network is equipped to manage the resources in the network which comprises a number of radio terminals (BR) linked, via the concentration stages (CTR, VCX), to another concentration stage consisting of virtual circuit switches (VCX), At least the concentration stage includes a virtual circuit switch (VCX) equipped with macrodiversity management equipment (OPM). Each concentration stage (CTR, VCX) downstream from a concentration stage (CTR, VCX) is equipped with macrodiversity management equipment (OPM) is equipped with a flow rate management device (GDM) for managing the resources on the multiplex which is found directly upstream of the concentration stage that it equips.

Local access network

Network giving local access to mobile phones

Process of switching to a server of cells sent by a module linked to a local access network for mobile (stations), as well as such a network for implementation of said process

Growing community of inventors

Pleumeur Bodou, France

Olivier Roussel