Virtual broadband transmitter, virtual broadband receiver, and methods thereof

• US 9,538,513 B2
• Filed: 11/04/2015
• Issued: 01/03/2017
• Est. Priority Date: 09/26/2006
• Status: Active Grant

• Current Assignee: LiveU Ltd. (LiveU, Inc.)
• Original Assignee: LiveU Ltd. (LiveU, Inc.)
• Inventors: Ohayon, Rony Haim, Cohen, Avichai
• Primary Examiner(s): Nguyen, Brian D
• Application Number:
  US14/931,888
• Publication Number:
  US 20160057749A1
• Time in Patent Office: 426 Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/0697 using spatial multiplexing
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0058 Block-coded modulation
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 2212/00 Encapsulation of packets
• CPC Class Codes: H04L 25/02 Details ; arrangements for supplying electrical power along data transmission lines systems for transmitting signals via power distribution lines H04B3/54
• CPC Class Codes: H04L 47/25 with rate being modified by the source upon detecting a change of network conditions
• CPC Class Codes: H04L 49/9057 Arrangements for supporting packet reassembly or resequencing
• CPC Class Codes: H04L 65/60 Network streaming of media packets
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04N 21/2187 Live feed
• 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 21/4382 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 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/6143 involving transmission via a satellite
• CPC Class Codes: H04N 21/6175 involving transmission via Internet broadcast-related systems characterised by the transmission system being the Internet H04H60/82
• CPC Class Codes: H04N 21/631 Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
• CPC Class Codes: H04N 21/6375 for requesting retransmission , e.g. of data packets lost or corrupted during transmission from serverARQ protocols H04L1/18; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 72/21 : in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/542 : using measured or perceived quality
• CPC Class Codes: H04W 76/15 : Setup of multiple wireless link connections

Abstract

A virtual broadband transmitting unit includes a stream generator to generate a multiplicity of data streams from an incoming media datastream, and a transmission manager to control the upload of the multiplicity of data streams along a multiplicity of transmission channels to at least one wireless communication network. A virtual broadband receiver includes means to receive a multiplicity of media data streams from a multiplicity of data connections, and an assembly engine to assemble the data streams into a single media stream.

Claims

1. A virtual broadband transmitting unit comprising:

a stream generator to generate a multiplicity of data streams from a media data stream; and

a transmission manager to control the uplink transmission of said multiplicity of data streams along a multiplicity of transmission channels to at least one wireless communication network,

wherein said virtual broadband transmitting unit operates several transmitting modems to transmit media data through one or more cellular networks;

wherein the virtual broadband transmitting unit uses multiple transmitting modems in concert to create a virtual broadband upload connection, in which the sum total of the upload capacity of said multiple transmitting modems represent enough combined bandwidth for a generally live media transmission;

wherein the virtual broadband transmitting unit is associated with one or more modem drivers to manage one or more of the transmitting modems used to transmit packets;

wherein the packets are inequitably distributed amongst the transmitting modems by using at least one buffer;

wherein each transmitting modem is able to perform at different levels over time;

wherein each one of said transmitting modems is associated with a modem manager;

wherein each one of said associated modem managers comprises means to pull a next available data packet for transmission;

wherein each one of said modem managers is to feed its associated modem driver per a rate optimal under current prevailing conditions;

wherein each transmitting modem generates a separate logical channel, and wherein the separate logical channels constitute a virtual broadband connection;

wherein the virtual broadband connection is comprised of a multiplicity of logical channels being transmitted to one or more network operators, each of which operator operating one or more networks;

wherein the logical channels are transported to a virtual broadband receiver via one or more routes;

wherein each transmitting modem is capable of having different performance characteristics, and wherein the actual performance of each transmitting modem is impacted by one or more factors selected from the group consisting of;

modem speed, modem reliability, connection quality, operating license limitations, and network congestion.

2. The virtual broadband transmitting unit of claim 1, wherein said stream generator comprises a packet generator comprising at least one of:

a forward error correction (FEC) processor to provide FEC codes to said data stream;

a packet encapsulator to generate numbered data packets from said data stream; and

an interleaver to shuffle said data packets.

3. The virtual broadband transmitting unit of claim 2, wherein said stream generator comprises a queue buffer to receive said data packets from said packet generator.

4. A virtual broadband transmitting unit comprising:

a stream generator to generate a multiplicity of data streams from a media data stream; and

a transmission manager to control the uplink transmission of said multiplicity of data streams along a multiplicity of transmission channels to at least one wireless communication network,

wherein said virtual broadband transmitting unit operates several transmitting modems to transmit media data through one or more cellular networks;

wherein the virtual broadband transmitting unit uses multiple transmitting modems in concert to create a virtual broadband upload connection;

wherein the virtual broadband transmitting unit is associated with one or more modem drivers to manage one or more of the transmitting modems used to transmit packets;

wherein the packets are inequitably distributed amongst the transmitting modems by using at least one buffer;

wherein each transmitting modem is able to perform at different levels over time;

wherein each one of said transmitting modems is associated with a modem manager;

wherein each one of said associated modem managers comprises means to obtain a next available data packet for transmission;

wherein each one of said transmitting modems is fed with said packets at a changing rate under current prevailing conditions;

wherein each transmitting modem generates a separate logical channel, and wherein the separate logical channels constitute a virtual broadband connection;

wherein the virtual broadband connection is comprised of a multiplicity of logical channels being transmitted to one or more network operators, each of which operator operating one or more networks;

wherein the logical channels are transported to a virtual broadband receiver via one or more routes, wherein at least one route comprises at least one of;

a wireless communication network, a cellular communication network;

wherein each transmitting modem is capable of having different performance characteristics, and wherein the actual performance of each transmitting modem is impacted by one or more factors selected from the group consisting of;

modem speed, modem reliability, connection quality, operating license limitations, and network congestion.

5. The virtual broadband transmitting unit of claim 4, wherein the virtual broadband transmitting unit is associated with a video encoder to encode said media data stream.

6. The virtual broadband transmitting unit of claim 4, wherein said stream generator is associated with a multiplicity of modems to transmit said multiplicity of data streams.

7. The virtual broadband transmitting unit of claim 4, wherein the virtual broadband transmitting unit is connected to the Internet via Wi-Fi in addition to cellular network.

8. A method of virtual broadband transmission, comprising:

organizing video data generated at a remote location into data packets; and

uploading said data packets via a multiplicity of transmitting modems through at least one wireless communication network,

wherein the method further comprises;

generating a multiplicity of data streams from a media data stream;

controlling the uplink transmission of said multiplicity of data streams along a multiplicity of transmission channels through at least one wireless communication network,

wherein the method uses multiple transmitting modems in concert to create a virtual broadband upload connection, in which the sum total of the upload capacity of said multiple transmitting modems represent enough combined bandwidth for a generally live media transmission;

wherein the method utilizes one or more modem drivers to manage one or more of the transmitting modems used to transmit packets;

wherein the packets are inequitably distributed amongst the transmitting modems by using at least one buffer;

wherein each transmitting modem is able to perform at different levels over the course of time;

wherein the virtual broadband connection is comprised of a multiplicity of logical channels being transmitted;

transporting the logical channels to a virtual broadband receiver via one or more routes;

wherein each transmitting modem is capable of having different performance characteristics, and wherein the actual performance of each transmitting modem is impacted by one or more factors selected from the group consisting of;

modem speed, modem reliability, connection quality, operating license limitations, and network congestion.

9. The method of claim 8, wherein said at least one wireless communication network is at least one of:

a cellular network, Wi-Fi, Wi-Max, satellite.

10. The method of claim 8, further comprising:

receiving feedback regarding the success of said uploading;

analyzing said feedback; and

adjusting operational settings for said organizing and said multiplicity of modems in response to results of said analyzing.

11. The method of claim 8, further comprising:

generating packets with forward error correction (FEC) codes;

receiving retransmission requests for at least one improperly received data packet;

retransmitting said at least one improperly received data packet.

12. A virtual broadband receiver comprising:

one or more receivers to receive a plurality of incoming media data streams carrying packets of encoded media from a plurality of routes, wherein each incoming media data stream was transmitted by a remote virtual broadband transmitter from a remote location along a transmission route that comprises at least one wireless communication network accessible from said remote location;

an assembly engine (a) to receive as input the packets of said plurality of incoming media data streams per their order of arrival, and (b) to assemble said plurality of incoming media data streams into a single serial media stream of packets forming a media transmission from said remote location;

wherein the assembly engine is associated with an output rate controller to regulate a rate at which said single serial media stream of packets is released from said assembly engine;

wherein said packets of encoded media arrive to said virtual broadband receiver in a generally non-serial order and are placed in a receiving window of a jitter buffer of said assembly engine.

13. A method comprising:

utilizing one or more receivers to receive a plurality of incoming media data streams carrying packets of encoded media from a plurality of routes, wherein each incoming media data stream was transmitted by a remote virtual broadband transmitter from a remote location along a transmission route that comprises at least one wireless communication network accessible from said remote location;

at an assembly engine, (a) receiving as input the packets of said plurality of incoming media data streams per their order of arrival, and (b) assembling said plurality of incoming media data streams into a single serial media stream of packets forming a media transmission from said remote location;

regulating a rate at which said single serial media stream of packets is released from said assembly engine;

wherein said packets of encoded media arrive to said virtual broadband receiver in a generally non-serial order and are placed in a receiving window of a jitter buffer of said assembly engine.