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:
Apr. 14, 2020

Filed:

Mar. 17, 2016
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Mikael Jonsson, Vällingby, SE;

Carola Faronius, Järfälla, SE;

Magnus Finne, Sundbyberg, SE;

Ola Persson, Stockholm, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 74/08 (2009.01); H04B 7/024 (2017.01); H04W 88/08 (2009.01); H04L 1/18 (2006.01); H04W 16/14 (2009.01); H04W 88/10 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0808 (2013.01); H04B 7/024 (2013.01); H04L 1/1812 (2013.01); H04W 16/14 (2013.01); H04W 88/085 (2013.01); H04W 88/10 (2013.01);
Abstract

A method includes a base station in a distributed antenna system having a set of antennas. For each antenna, the base station stores state information indicating that the antenna is either in a transmit state or a do_not_transmit state. For each antenna indicated by the state information for the antenna as being in the transmit state, the base station determines whether the antenna has been given a clear channel indication (CCI) for a next transmission time interval (TTI). At the next TTI, the base station transmits data to a UE, wherein the base station transmits the data to the UE using antennas included in said set of antennas that i) are indicated by the state information for the antenna as being in the transmit state and ii) have been given the CCI. The base station adjusts the state information in accordance with a transmit status.


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