SYSTEM FOR DISTRIBUTING BROADBAND WIRELESS SIGNALS INDOORS

• US 20110158173A1
• Filed: 07/09/2009
• Published: 06/30/2011
• Est. Priority Date: 07/09/2008
• Status: Abandoned Application

• Current Assignee: S. A Telefonica
• Original Assignee: Telefonica SA
• Inventors: Cucala Garcia, Luis, Davila Alvarez, Pablo
• Application Number:
  US13/002,909
• Publication Number:
  US 20110158173A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B

Abstract

system for distributing broadband wireless signals indoors includes a radio access node, connected to a telecommunication access network via an access interface, where said radio access node comprises a broadband-signal-transmitting/-receiving module configured to transmit and receive broadband wireless signals via a broadband radio interface; at least one client device comprising a broadband-signal-transmitting/-receiving module configured to transmit and receive broadband wireless signals to/from said radio access node via said broadband radio interface. It also comprises a control channel configured to exchange control signals between said radio access node and said at least one client device over a control radio interface, each of said radio access nodes and at least one client device comprising a control-signal-transmitting/receiving module configured to establish said control channel for transmitting and receiving wireless signals over said control radio interface.

Claims

1-16. -16. (canceled)

17. A system for distributing broadband wireless signals indoors, the system comprising:

a radio access node connected to a telecommunication access network via an access interface, the radio access node comprising a first broadband-signal-transmitting/receiving module configured to transmit and receive broadband wireless signals via a broadband radio interface;

at least one client device comprising a second broadband-signal-transmitting/receiving module configured to transmit and receive broadband wireless signals to/from the radio access node via the broadband radio interface;

a control channel configured to exchange control signals between the radio access node and said at least one client device over a control radio interface, each of said radio access nodes and at least one client device comprising a first control-signal-transmitting/receiving module configured to establish the control channel for transmitting and receiving wireless signals over the control radio interface, the control channel being configured so that a telecommunications operator can communicate with any of the system devices and with any final device or sensor or actuator device connected to said system devices via an access interface connected to a telecommunication access network termination to perform remote tasks of configuration, operation, maintenance, supervision and management of said devices, irrespective of the status of the corresponding broadband radio interfaces.

18. The system according to claim 17, further comprising

at least one radio router device which comprises a third broadband-signal-transmitting/receiving module configured for the transmission/reception of broadband wireless signals and a second control-signal-transmitting/receiving module configured to transmit and receive wireless signals of a control radio interface;

at least one second client device which comprises a fourth broadband-signal-transmitting/receiving module configured to transmit and receive broadband wireless signals and a third control-signal-transmitting/receiving module configured to transmit and receive wireless signals over said control radio interface;

wherein said radio router device is configured to receive radiofrequency signals from said radio access node via a broadband radio interface to regenerate said signals and to relay them towards said second client device via a broadband radio interface and vice versa and wherein said control channel is configured to exchange control signals between said radio router device and said radio access node and between said radio router device and said second client device over said control radio interface.

19. The system according to claim 17, wherein at least one client device is connected to a final device via a final device interface, said client device being configured to provide said final device with at least one communications service via said final device interface.

20. The system according to claim 17, wherein at least one client device comprises a module configured to perform final device functions, wherein said client device is configured to provide said module with at least one communications service via an internal final device interface.

21. The system according to claim 17, wherein at least one of said radio access nodes, client devices, radio router devices and of said sensor or actuator devices outside said system is configured to implement radio functionalities that can be updated by software in a distributed environment, it being possible to individually update their functionalities by changes in its software which make it possible to give support to new standards or variations thereof, and said control channel is configured to support said software uploads to update the devices.

22. The system according to claim 17, wherein said control radio interface is more robust than said broadband radio interface and uses coding techniques to increase the redundancy of the signal and the resistance to errors, it implements spectrum management techniques, it implements signal relaying techniques and it uses time-interleaved information techniques.

25. The system according to claim 17, wherein at least one of the devices that form the system is configured to perform cognitive radio functions to analyze a degree of occupation of the spectrum and determine the most suitable frequency band and communications standard to support said broadband radio interface.

26. The system according to claim 17, wherein at least one of said radio access nodes, client devices and/or radio router devices comprises a base unit and a plurality of insertable modules inserted in said base unit.

23. The system according to clam 17, wherein said control radio interface implements a physical layer of standard IEEE 802.15.4.

24. The system according to claim 23, wherein said physical layer of standard IEEE 802.15.4 is modified by one of the following techniques:

coding, spectrum management, signal relaying, and time-interleaved information.

27. A method of configuring a wireless network formed by a plurality of nodes located inside a building for connecting a new incoming node to said wireless network, the method comprising the steps of:

(a) sending from said incoming node a message broadcast to the nodes that form said wireless network;

(b) sending a reply message to said incoming node from all the nodes of the wireless network that have received said broadcast message;

(c) performing, by the incoming node, an analysis of the replies received from the nodes that have received the broadcast message and calculating, from at least one parameter, to which of the nodes to connect the incoming node;

(d) sending from said incoming node a connection request to a chosen node;

(e) sending from said chosen node a reply message to said incoming node, accepting the connection of the incoming node; and

(f) notifying, by the chosen node where the incoming node has been connected to the node of superior hierarchy, which is connected said chosen node, if any, the new topology of the wireless network.

28. The method according to claim 27, wherein said incoming node is a client device or a radio router device.

29. The method according to claim 28, wherein if said incoming node is a client device, said chosen node is either a radio router device or a radio access node, and if said incoming node is a radio router device, said chosen node is either another radio router device or a radio access node.

30. The method according to claim 27, wherein in step (c) said analysis and calculation of the node whereto the incoming node is connected is performed from a weighted function which calculates an optimum channel.

31. The method according to claim 30, wherein said weighted function bears in mind a quality of the radio link and a distance in levels to the radio access node.