US 11,729,232 B2
Content delivery
Rory Turnbull, London (GB); Timothy Stevens, London (GB); and Stephen Appleby, London (GB)
Assigned to BRITISH TELECOMMUNICATIONS public limited company, London (GB)
Appl. No. 18/19,362
Filed by BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY, London (GB)
PCT Filed Aug. 6, 2021, PCT No. PCT/EP2021/071994
§ 371(c)(1), (2) Date Feb. 2, 2023,
PCT Pub. No. WO2022/037972, PCT Pub. Date Feb. 24, 2022.
Claims priority of application No. 2012951 (GB), filed on Aug. 19, 2020.
Prior Publication US 2023/0216905 A1, Jul. 6, 2023
Int. Cl. H04L 65/611 (2022.01); H04L 67/02 (2022.01); H04L 65/612 (2022.01)
CPC H04L 65/611 (2022.05) [H04L 65/612 (2022.05); H04L 67/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of delivering content to a client device in a network comprising a plurality of client devices, wherein said content comprises a sequence of segments, said method comprising:
i) receiving at a first network element one or more segments from a content server sent over multicast;
ii) receiving at the first network element a request for a segment from a client device, wherein the request comprises an HTTP GET request;
iii) responsive to the received request, sending by the first network element a HTTP HEAD request to the content server;
iv) receiving a response to the HTTP HEAD request at the first network element over unicast;
v) generating a segment comprising the header from the received response and a payload from one of the one or more received segments;
vi) sending the generated segment to the client device over unicast.