Gateway-assisted unicast-to-multicast conversion for adaptive bit rate (ABR) data

Patent metadata

Field	Value
Publication number	US-10523572-B2
Application number	US-201514950756-A
Country	US
Kind code	B2
Filing date	Nov 24, 2015
Priority date	Nov 5, 2015
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

A method of processes data such as video information. The method includes providing a request from a gateway to an adaptive bit rate server for a unicast adaptive bit rate stream and converting by the gateway the unicast adaptive bit rate stream into one or more multicast adaptive bit rate streams. The gateway is in communication with user equipment having security paired client devices. The method further includes receiving link conditions between the security paired client devices and the user equipment from the user equipment. The method also includes adapting using the gateway the unicast adaptive bit rate stream in response to the link conditions.

First claim

What is claimed is:

1. A method of processing video information, the method comprising:
requesting, by a gateway from an adaptive bit rate server a unicast adaptive bit rate stream, wherein the gateway is in communication with user equipment associated with security paired client devices, wherein the request is based on first link conditions between the user equipment and the gateway and second link conditions between the gateway and the adaptive bit rate server;
converting, by the gateway, the unicast adaptive bit rate stream into one or more multicast adaptive bit rate streams, by replacing a destination address of the unicast adaptive bit rate stream;
receiving, by the gateway from the user equipment, third link conditions between the security paired client devices and the user equipment, the third link conditions including a display resolution of the security paired client devices; and
adapting, by the gateway, the unicast adaptive bit rate stream according to the third link conditions;
wherein the converting comprises replacing a unicast destination internet protocol address in the unicast adaptive bit rate stream with a multicast internet protocol address assigned by the user equipment for each multicast adaptive bit rate stream; and
wherein the gateway comprises a first application invoked by a second application of the user equipment to provide the request.

2. The method of claim 1 , wherein the one or more multicast adaptive bit rate streams are provided in a supplementary downlink channel in an unlicensed band.

3. The method of claim 2 , wherein the gateway comprises an LAA-LTE capable small cell.

4. The method of claim 3 , wherein the user equipment comprises an LAA-LTE capable smart phone, tablet or mobile computer.

5. A method of processing video information, comprising:
performing security pairing of a first device with a plurality of client devices;
identifying content rights associated with the plurality of client devices;
assigning one or more client devices to a multicast group, wherein the multicast group comprises the first device;
causing a gateway to request a unicast adaptive bit rate stream from an adaptive bit rate server, wherein the gateway is in communication with the multicast group and configured to convert the unicast adaptive bit rate stream to one or more multicast adaptive bit rate streams and provide the one or more multicast adaptive bit rate streams to the first device, wherein the request being provided according to first link conditions between the multicast group and the gateway and second link conditions between the gateway and the adaptive bit rate server;
receiving, by the first device, the one or more multicast adaptive bit rate streams from the gateway;
redirecting, by using a first application on the first device, the one or more multicast adaptive bit rate streams to a downlink channel in an unlicensed band for receipt by the one or more client devices in the multicast group by causing the gateway to replace a destination address of the unicast adaptive bit rate stream;
causing the gateway to adapt the unicast multicast adaptive bit rate stream according to third link conditions between the one or more client devices and the first device, the third link conditions including a display resolution of the one or more client devices;
wherein a unicast destination internet protocol address in the adaptive bit rate stream is replaced with a multicast internet protocol address assigned by the first device for each multicast adaptive bit rate stream; and
wherein the first device uses the first application on the first device to invoke a second application on the gateway to cause the gateway to provide the request.

6. The method of claim 5 , further comprising receiving service data and device capabilities for the one or more client devices.

7. The method of claim 5 , wherein the downlink channel is a supplementary downlink channel in the unlicensed band.

8. The method of claim 6 , further comprising:
providing, by the first device, the device capabilities to the gateway for adapting the requested unicast adaptive bit rate stream.

9. The method of claim 6 , further comprising:
providing, by the first device, link conditions between the first device and the client devices to the gateway for adapting the requested unicast adaptive bit rate stream.

10. The method of claim 5 , wherein the gateway comprises an LAA-LTE capable small cell.

11. The method of claim 5 , further comprising:
tracking membership changes of an internet protocol multicast group associated with a multicast adaptive bit stream using the first device.

12. The method of claim 5 , further comprising:
providing a redirect trigger command on a Bluetooth or WiFi connection from the first device to the client devices; and
receiving a join request from the client devices in response to the redirect trigger command.

13. The method of claim 12 wherein the join request indicates the multicast internet protocol address for a multicast adaptive bit stream.

14. A gateway configured for communication with a user equipment having security paired client devices, the gateway comprising at least one processor, circuit, or combination thereof configured to:
provide a request to an adaptive bit rate server for a unicast adaptive bit rate stream, the request being provided according to first link conditions between the user equipment and the gateway and second link conditions between the gateway and the adaptive bit rate server;
convert the unicast adaptive bit rate stream into one or more multicast adaptive bit rate streams by replacing a destination address of the unicast adaptive bit rate stream;
receive third link conditions between the security paired client devices and the user equipment from the user equipment, the third link conditions including a display resolution of the security paired client devices; and
adapt the unicast adaptive bit rate stream according to the third link conditions and
wherein the processor, circuit, or combination thereof is configured to replace a unicast destination internet protocol address in the unicast adaptive bit rate stream with a multicast internet protocol address assigned by the user equipment for a multicast adaptive bit rate stream; and
wherein the gateway comprises a first application configured to be invoked by a second application of the user equipment to provide the request.

15. The gateway of claim 14 , wherein the one processor, circuit, or combination thereof is configured to receive device capabilities for the security paired client devices and adapt the unicast adaptive bit rate stream according to the device capabilities.

16. The gateway of claim 14 , wherein the processor, circuit, or combination thereof is configured to provide the one or more multicast adaptive bit rate streams to the security paired client devices in a supplementary downlink channel in an unlicensed band.

17. The method of claim 1 , wherein the gateway comprises an LAA-LTE capable small cell.

18. The method of claim 17 , wherein the user equipment comprises an LAA-LTE capable smart phone, tablet or mobile computer.

19. The method of claim 5 , wherein the adaptive bit rate server is a video server.

20. The gateway 14 , wherein the gateway comprises an LAA-LTE capable small cell.

Assignees

• Avago Tech Int Sales Pte Lid

Inventors

• Li Yong
• Chen Xuemin

Classifications

• H04L12/189

  in combination with wireless systems (selective distribution or broadcast in wireless communication networks H04W4/06) · CPC title

• H04W4/06

  Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services · CPC title

• H04L12/184

  with heterogeneous receivers, e.g. layered multicast · CPC title

• H04L47/25 Primary

  with rate being modified by the source upon detecting a change of network conditions · CPC title

• H04L65/4076

  Electricity · mapped topic