US 2017/0366284 A1 · Almost Blank Subframe Allocation

Abstract

Aspects relate to allocation of Almost Blank Subframes. According to some embodiments, a plurality of base stations may provide an overlapping coverage area. A first base station may transmit a first message comprising a first subframe allocation repetition period, a first subframe allocation offset, and a first subframe allocation bitmap. The first subframe allocation bitmap may indicate configuration of a first plurality of Almost Blank Subframes. Another base station may transmit a second message comprising the first subframe allocation repetition period, the first subframe allocation offset, and a second subframe allocation bitmap. The second subframe allocation bitmap may indicate configuration of a second plurality of Almost Blank Subframes. The second plurality of Almost Blank Subframes may not substantially overlap in time with the first plurality of Almost Blank Subframes.

Claims34

Dependent claims

(canceled)

A system comprising:

a first base station associated with a first coverage area, wherein the first base station is configured to:
transmit a first message comprising:
a first subframe allocation repetition period;
a first subframe allocation offset;
and
a first subframe allocation bitmap that indicates configuration of a first plurality of Almost Blank Subframes;
and
transmit, based on the configuration of the first plurality of Almost Blank Subframes, a first Almost Blank Subframe, wherein the first Almost Blank Subframe is transmitted at a power level that is lower than during a non-Almost Blank Subframe;
and
at least one other base station associated with at least one second coverage area that overlaps with the first coverage area, wherein the at least one other base station is configured to:
transmit a second message comprising:
the first subframe allocation repetition period;
the first subframe allocation offset;
and
a second subframe allocation bitmap that indicates configuration of a second plurality of Almost Blank Subframes, wherein the second plurality of Almost Blank Subframes does not substantially overlap in time with the first plurality of Almost Blank Subframes.

12 more elements

A method comprising:

transmitting, by a first base station associated with a first coverage area, a first message comprising:
a first subframe allocation repetition period;
a first subframe allocation offset;
and
a first subframe allocation bitmap indicating configuration of a first plurality of Almost Blank Subframes;
transmitting, by at least one other base station associated with at least one second coverage area that overlaps with the first coverage area, a second message comprising:
the first subframe allocation repetition period;
the first subframe allocation offset;
and
a second subframe allocation bitmap indicating configuration of a second plurality of Almost Blank Subframes, wherein the second plurality of Almost Blank Subframes does not substantially overlap in time with the first plurality of Almost Blank Subframes;
and
transmitting, by the first base station and based on the configuration of the first plurality of Almost Blank Subframes, a first Almost Blank Subframe, wherein the first Almost Blank Subframe is transmitted at a power level that is lower than during a non-Almost Blank Subframe.

9 more elements

A system comprising:

a first base station associated with a first coverage area, wherein the first base station is configured to:
transmit a first message comprising:
a first subframe allocation repetition period;
a first subframe allocation offset;
and
a first subframe allocation bitmap that indicates configuration of a first plurality of Almost Blank Subframes;
and
transmit, based on the configuration of the first plurality of Almost Blank Subframes, a first Almost Blank Subframe, wherein the first Almost Blank Subframe is transmitted at a power level that is lower than during a non-Almost Blank Subframe;
at least one other base station associated with at least one second coverage area that overlaps with the first coverage area, wherein the at least one other base station is configured to:
transmit a second message comprising:
the first subframe allocation repetition period;
the first subframe allocation offset;
and
a second subframe allocation bitmap that indicates configuration of a second plurality of Almost Blank Subframes, wherein the second plurality of Almost Blank Subframes does not substantially overlap in time with the first plurality of Almost Blank Subframes;
a first wireless device located in the first coverage area, wherein the first wireless device is configured to:
receive, from the first base station, the first message;
and
receive, from the first base station, first signals based on the configuration of the first plurality of Almost Blank Subframes;
and
a second wireless device located in the at least one second coverage area, wherein the second wireless device is configured to:
receive, from the at least one other base station, the second message;
and
receive, from the at least one other base station, second signals based on the configuration of the second plurality of Almost Blank Subframes.

20 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/639,653Filed 30 Jun 2017

Priority

29 Oct 2011

Published

21 Dec 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04H 20/42
Arrangements for broadcast or for distribution combined with broadcast: arrangements for resource management
H04J 11/00
Orthogonal multiplex systems
H04L 69/22
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass:…
H04W 16/32
Cell structures: hierarchical cell structures

Family

Application61/553,184Us provisional application · filed 29 Oct 2011

Application61/553,185Us provisional application · filed 29 Oct 2011

Application13/662,459Continuation · filed 27 Oct 2012

Application14/605,110Continuation · filed 26 Jan 2015

Application15/134,425Continuation · filed 21 Apr 2016

Application15/639,653Continuation

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