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Patent

ABS-based Method for Inter Cell Interference Coordination in LTE-Advanced Networks

Long Gao, +2 more
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TLDR
In this paper, the interference coordination problem between macro BSs and pico user equipments (UEs) is addressed based on the concept of almost blank subframe (ABS), which is supported by the LTE-A standard.
Abstract: 
The Long Term Evolution Advanced (LTE-A) network, is a heterogeneous network, where macro and pico base stations (BSs) coexist to improve spectral efficiency per unit area. Systems and methods described herein attempt to provide a solution to the interference coordination problem between macro BSs and pico user equipments (UEs). Specifically, the systems and methods conduct interference coordination based on the concept of almost blank subframe (ABS), which is supported by the LTE-A standard. The macro BSs choose their ABS configurations in a cooperative way such that the overall system throughput is optimized.

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References
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Patent

Method and apparatus for using mbsfn subframes to send unicast information

Aamod Khandekar, +4 more
TL;DR: In this paper, the authors proposed a multicast/broadcast single frequency network (MBSFN) subframe format for unicast and broadcast information transmission in a wireless network, where the first base station may reserve a subframe for the second base station, send system information conveying the reserved subframe as an MBSFN subframe to its stations, and transmit in a first part of the reserved subsets.
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Methods, apparatus and systems for applying almost blank subframe (abs) patterns

Mahmoud Watfa, +5 more
TL;DR: In this paper, different ABS patterns and triggers are described for enabling a wireless transmit/receive unit (WTRU) to obtain ABS patterns, and a representative method of scheduling operations by a WTRU is described.
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Maik Bienas, +2 more
TL;DR: In this paper, a femtocell cell comprises a UMTS (Universal Mobile Telecommunications System), which has the ability to scan the air interface in a manner similar to that associated with a UE in order to identify unallocated resources within the wireless network, and subsequently request access for the allocated resources.
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System and method for coordinating different types of base stations in a heterogeneous communications system

Oghenekome Oteri, +2 more
TL;DR: In this article, a system and method for coordinating different types of base stations in a heterogeneous communications system is presented, which includes signaling an indicator of a subset of a plurality of communications resources controlled by a communications controller to a user equipment, and receiving a report comprising channel information associated with a measurement of signals transmitted in the subset from the user equipment.
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Adaptive resource negotiation between base stations for enhanced interference coordination

Osok Song, +6 more
TL;DR: In this article, the authors propose an adaptive resource negotiation between evolved node Bs (eNBs) for enhanced intercell interference coordination (eICIC) where the second eNB may accept or reject the proposed resource partitioning.