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:
Sep. 22, 2020

Filed:

May. 13, 2016
Applicant:

Telecom Italia S.p.a., Milan, IT;

Inventors:

Marco Caretti, Turin, IT;

Giovanni Nardini, Pisa, IT;

Dario Sabella, Turin, IT;

Giovanni Stea, Pisa, IT;

Antonio Virdis, Pisa, IT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2018.01); H04W 28/04 (2009.01); H04W 76/23 (2018.01); H04W 80/02 (2009.01);
U.S. Cl.
CPC ...
H04W 28/04 (2013.01); H04W 76/23 (2018.02); H04W 80/02 (2013.01);
Abstract

A first user equipment can communicate with a second user equipment in a direct mode or in an infrastructure mode via a base station of a network. To communicate with the second user equipment, the first user equipment generates packets and forwards the packets to a lower protocol layer of a protocol stack. The first user equipment also acts as a buffer protocol entity by storing the packets until acknowledgement of receipt is received from the second user equipment. If the first user equipment switches from the direct mode to the infrastructure mode, or vice versa, the first user equipment forwards each of the stored packets to the lower protocol layer for transmission to the second user equipment using the current mode.


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