The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 17, 2023

Filed:

May. 10, 2018
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Fangli Xu, Beijing, CN;

Haijing Hu, Beijing, CN;

Dawei Zhang, Saratoga, CA (US);

Longda Xing, San Jose, CA (US);

Murtaza A. Shikari, Mountain View, CA (US);

Sethuraman Gurumoorthy, San Jose, CA (US);

Sree Ram Kodali, Sunnyvale, CA (US);

Srinivasan Nimmala, San Jose, CA (US);

Srirang A. Lovlekar, Cupertino, CA (US);

Xu Ou, San Jose, CA (US);

Yuqin Chen, Shenzhen, CN;

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 56/00 (2009.01); H04L 1/1829 (2023.01); H04L 1/1867 (2023.01);
U.S. Cl.
CPC ...
H04W 56/00 (2013.01); H04L 1/189 (2013.01); H04L 1/1832 (2013.01);
Abstract

A transmitter (e.g. a packet data convergence protocol, PDCP, in the transmitter), which may be a base station for downlink communications or a user equipment device for uplink communications, may control timing of the delivery of duplicate (same) packets to multiple (e.g. two) wireless links (e.g. radio link control links) for transmission to a receiver, based at least on synchronization information received from the receiver. The duplicate packets may be transmitted over the multiple wireless links to the receiver, which may receive the duplicate packets over the multiple wireless links. The receiver may collect and/or generate synchronization information indicative of the timing or latency between the multiple wireless links, based at least on the respective receive timings of the duplicate packets over the multiple wireless links. The receiver may transmit a report containing the synchronization information to the transmitter periodically and/or in response to a trigger event.


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