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. 17, 2019

Filed:

Feb. 15, 2016
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Joakim Axmon, Kavlinge, SE;

Magnus Larsson, Sollentuna, SE;

Oskar Mauritz, Johanneshov, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 28/16 (2009.01); H01Q 21/12 (2006.01); H01Q 25/02 (2006.01); H04W 72/04 (2009.01); H04W 56/00 (2009.01); H04W 74/00 (2009.01); H04W 74/08 (2009.01);
U.S. Cl.
CPC ...
H04W 28/16 (2013.01); H01Q 21/12 (2013.01); H01Q 25/02 (2013.01); H04W 56/001 (2013.01); H04W 72/04 (2013.01); H04W 74/004 (2013.01); H04W 74/0833 (2013.01); H04W 74/0866 (2013.01); H04W 72/048 (2013.01);
Abstract

A network node is connected to a plurality of antenna nodes that are located along a constrained path where a plurality of wireless communication devices are located. The antenna nodes are controlled to maintain reception radio lobes substantially along the path such that the wireless communication devices can perform uplink radio communication with the network node via the reception radio lobes. At least one RF signal is detected in a PRACH, with a first PRACH configuration. A determination is made of a radio frequency offset of the detected RF signal. A determination is then made that the at least one RF signal originates from a wireless communication device of a specific subset among the plurality of wireless communication devices. Each wireless communication devices in the specific subset is associated with the radio frequency offset. A second PRACH configuration that is common to all wireless communication devices in the specific subset of wireless communication devices is then provided to the wireless communication device.


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