RAN for multimedia delivery

Patent metadata

Field	Value
Publication number	US-10939348-B2
Application number	US-201916717687-A
Country	US
Kind code	B2
Filing date	Dec 17, 2019
Priority date	Sep 8, 2015
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

A method is disclosed for avoiding unnecessary keepalive data transfers, comprising: receiving, at an upstream TCP connection endpoint in a radio access network (RAN) from an operator core network, an Internet Protocol (IP) packet; performing, at the upstream TCP connection endpoint, shallow packet inspection on the IP packet; and forwarding the IP packet to the downstream TCP connection endpoint in the RAN if the IP packet is not a keepalive packet, based on the performed shallow packet inspection. The upstream TCP connection endpoint in the RAN may be one of a nodeB, an eNodeB, a base transceiver station (BTS), a coordinating server, and a mobile edge computing (MEC) gateway. The downstream TCP connection endpoint in the RAN may be one of the nodeB, the eNodeB, or the base transceiver station (BTS).

First claim

The invention claimed is:

1. A method using mobile edge computing (MEC) for providing video, comprising:
receiving, at a User Equipment (UE), video from a content server, through an upstream node presenting the video as a uniform stream of data at an appropriate data rate and insulating the content server from changes to the radio link quality at the UE;
detecting, by a source base station, a change in UE mobility state or signal quality;
notifying, by the source base station, the upstream node before a handover occurs from the UE;
receiving, by the upstream node, the prospective handover message;
buffering, by the upstream node, the video using MEC;
refraining from delivering the video to the source base station; and
delivering, by the upstream node, the video after the handover occurs.

2. The method of claim 1 wherein using MEC comprises performing transcoding at the upstream node.

3. The method of claim 1 wherein using MEC comprises performing transrating at the upstream node.

4. The method of claim 1 wherein using MEC comprises requesting transcoding from the content server.

5. The method of claim 1 wherein using MEC comprises requesting transrating from the content server.

6. The method of claim 1 further comprising providing, by the upstream node, lower quality video during the handover.

Assignees

• Parallel Wireless Inc

Inventors

• Lubenski Zeev
• Arora Jitender

Classifications

• H04W36/324

  by mobility data, e.g. speed data · CPC title

• H04W36/0235

  by transmitting sequence numbers, e.g. SN status transfer · CPC title

• H04W36/0011 Primary

  for data sessions of end-to-end connection · CPC title

• H04W84/042

  Public Land Mobile systems, e.g. cellular systems · CPC title

• H04B17/336

  Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] · CPC title