Network module

• US 9,184,984 B2
• Filed: 04/07/2014
• Issued: 11/10/2015
• Est. Priority Date: 08/30/2000
• Status: Expired due to Fees

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Kliger, Avi, Kopelman, Rami, Avishay, Nachum, Shtern, Alon, Wassermann, Amir
• Primary Examiner(s): Beyen, Zewdu A
• Application Number:
  US14/247,187
• Publication Number:
  US 20140289353A1
• Time in Patent Office: 582 Days
• Field of Search: 370/318, 725/130, 725/150
• US Class Current: 1/1
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/2836 Protocol conversion between an external network and a home network controlling appliance services of a home automation network from a device located outside the home and the home network H04L12/2818; protocol conversion H04L69/08; adaptation of digital video signals for transport over a specific home network H04N7/24
• CPC Class Codes: H04L 12/2838 Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths adaptations of television systems for transmission by electric cable for domestic distribution H04N7/106; hybrid transport H04L12/6418; home network arrangements specially adapted for distribution of digital video signals H04N7/24
• CPC Class Codes: H04L 12/40117 Interconnection of audio or video/imaging devices home automation networks H04L12/2803; bitstream network arrangements specially adapted for distribution of digital video signals H04N7/24
• CPC Class Codes: H04L 12/4625 Single bridge functionality, e.g. connection of two networks over a single bridge
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/42607 for processing the incoming bitstream
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/43632 involving a wired protocol, e.g. IEEE 1394 high-speed IEEE 1394 serial bus H04L12/40052
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/6118 involving cable transmission, e.g. using a cable modem
• CPC Class Codes: H04N 7/102 Circuits therefor, e.g. noise reducers, equalisers, amplifiers H04N7/108 takes precedence
• CPC Class Codes: H04N 7/106 for domestic distribution

Abstract

A home network, in one embodiment including a home wiring system; a demarcation point unit in electrical communication with the home wiring system; and a home network module in electrical communication with the home wiring system. The home network module is adapted for connection to a home electronic device. The demarcation point unit passes data to and receives data from the home electronic device through the home network module.

Claims

1. A network module, comprising:

one or more computing devices; and

a memory including instructions that, when executed by the one or more computing devices, cause the one or more computing devices to;

determine whether the network module has been selected from a plurality of network modules of a home network to operate as a master module for the home network, each of the plurality of network modules being configured to operate as the master module when selected as the master module;

when the network module has been selected from the plurality of network modules to operate as the master module;

assign identifiers to the plurality of network modules for communicating over the home network;

receive a first signal from another network module of the plurality of network modules;

determine a received power level of the first signal;

determine a first adjustment to a first transmission power of the another network module of the plurality of network modules based at least in part on the received power level of the first signal such that transmissions of the another network module of the plurality of network modules arrive at the network module having a predefined power level, wherein the first adjustment is indicative of an attenuation of the first transmission power of the another network module; and

transmit a second signal to the another network module of the plurality of network modules, the second signal being indicative of the first adjustment to the first transmission power of the another network module.

2. The network module of claim 1, wherein the instructions, when executed by the one or more computing devices, further cause the one or more computing devices to:

determine the attenuation of the first transmission power of the another network module of the plurality of network modules based at least in part on the received power level of the first signal.

3. The network module of claim 1, wherein the second signal comprises a management message.

4. The network module of claim 1, wherein the instructions, when executed by the one or more computing devices, further cause the one or more computing devices to:

when the another network module of the plurality of network modules has been selected to operate as the master module;

transmit a third signal at a second transmission power to the another network module of the plurality of network modules;

receive a fourth signal from the another network module of the plurality of network modules, the fourth signal being indicative of a second adjustment to the second transmission power; and

adjust, based at least in part on the fourth signal, the second transmission power for transmissions to the another network module of the plurality of network modules.

5. The network module of claim 4, wherein the instructions, when executed by the one or more computing devices, further cause the one or more computing devices to:

when the another network module of the plurality of network modules has been selected to operate as the master module;

transmit a fifth signal at the second transmission power to the another network module of the plurality of network modules.

6. The network module of claim 1, wherein the plurality of network modules are communicatively coupled to a coaxial transmission network.

7. The network module of claim 6, wherein the instructions, when executed by the one or more computing devices, further cause the one or more computing devices to:

when the network module has been selected from the plurality of network modules to operate as the master module;

synchronize the plurality of network modules;

allocate bandwidth to the plurality of network modules; and

manage transmissions over the coaxial transmission network.

8. The network module of claim 7, wherein the transmissions comprise variable sized packets.

9. A method for operating a network module, the method comprising:

participating, by the network module, in a selection of a master module for a local area network from a plurality of network modules of the local area network, each of the plurality of network modules being configured to operate as the master module for the local area network when selected as the master module and the plurality of network modules being communicatively coupled to a coaxial transmission network;

when the network module has been selected from the plurality of network modules to operate as the master module for the local area network;

assigning identifiers to the plurality of network modules for communicating over first network media of the local area network;

synchronizing the plurality of network modules;

allocating bandwidth to the plurality of network modules;

managing transmissions over the coaxial transmission network;

receiving a first signal from another network module of the plurality of network modules;

determining a received power level of the first signal; and

transmitting a second signal to the another network module of the plurality of network modules, the second signal being indicative of a first adjustment to a first transmission power of the another network module.

10. The method of claim 9, further comprising:

when the another network module of the plurality of network modules has been selected to operate as the master module for the local area network;

transmitting a third signal at a second transmission power to the another network module of the plurality of network modules;

receiving a fourth signal from the another network module of the plurality of network modules, the fourth signal being indicative of a second adjustment to the second transmission power; and

adjusting, based at least in part on the fourth signal, the second transmission power for transmissions to the another network module of the plurality of network modules.

11. The method of claim 10, wherein transmitting the third signal at the second transmission power to the another network module of the plurality of network modules comprises:

transmitting, during initialization, the third signal at the second transmission power to the another network module of the plurality of network modules.

12. The method of claim 10, wherein the adjusting, based at least in part on the fourth signal, the second transmission power for the transmissions to the another network module of the plurality of network modules further comprises:

adjusting, based at least in part on the fourth signal, the second transmission power for the transmissions to the another network module of the plurality of network modules such that the transmission arrive at the another network module having a predefined power level.

13. The method of claim 9, wherein the transmissions comprise variable sized packets.

14. The method of claim 9, further comprising:

when the network module has been selected from the plurality of network modules to operate as the master module for the local area network;

communicate with a head-end device that is external to the local area network over second network media that is distinct from the first network media of the local area network.

15. The method of claim 9, further comprising:

when the network module has been selected from the plurality of network modules to operate as the master module for the local area network

determining the first adjustment to the first transmission power of the another network module of based at least in part on the received power level of the first signal such that transmissions of the another network module of the plurality of network modules arrive at the network module having a predefined power level.

16. The method of claim 9, wherein the first adjustment is indicative of an attenuation of the first transmission power of the another network module.

17. A computer program product comprising instructions stored in at least one tangible non-transitory computer-readable storage medium, the instructions comprising:

instructions to determine whether a network module has been selected from a plurality of network modules of a home network to operate as a master module for the home network, each of the plurality of network modules being configured to operate as the master module when selected as the master module;

when the network module has been selected from the plurality of network modules to operate as the master module;

instructions to assign identifiers to the plurality of network modules for communicating over the home network;

instructions to receive a first signal from another network module of the plurality of network modules;

instructions to determine a received power level of the first signal;

instructions to determine an attenuation between the network module and the another network module of the plurality of network modules based at least in part on the received power level of the first signal;

instructions to determine a first adjustment to a first transmission power of the another network module such that transmissions of the another network module arrive at the network module having a predefined power level, wherein the first adjustment is indicative of the determined attenuation; and

instructions to transmit a second signal to the another network module of the plurality of network modules, the second signal being indicative of the first adjustment to the first transmission power of the another network module.

18. The computer program product of claim 17, wherein the instructions further comprise:

when the another network module of the plurality of network modules has been selected to operate as the master module;

instructions to transmit a third signal at a second transmission power to the another network module of the plurality of network modules;

instructions to receive a fourth signal from the another network module of the plurality of network modules, the fourth signal being indicative of a second adjustment to the second transmission power; and

instructions to adjust, based at least in part on the fourth signal, the second transmission power for transmissions to the another network module of the plurality of network modules.

19. The computer program product of claim 17, wherein the instructions further comprise:

when the network module has been selected from the plurality of network modules to operate as the master module;

instructions to synchronize the plurality of network modules;

instructions to allocate bandwidth to the plurality of network modules; and

instructions to manage transmissions over the home network.

20. The computer program product of claim 19, wherein the transmissions comprise variable sized packets.