Dynamic TDD support in the LTE-B enhanced Local Area architecture

Bo Yu, Sayandev Mukherjee, Hiroyuki Ishii, Liuqing Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

52 Scopus citations


The Third Generation Partnership Project (3GPP) has been studying dynamic allocation of sub-frames to uplink (UL) or downlink (DL) in Time Division Duplex (TDD), called 'Dynamic TDD,' since the Long Term Evolution (LTE) Rel. 11 timeframe. At the same time, 3GPP is also standardizing Enhanced Local Area (eLA) small-cell heterogeneous architectures for inclusion in LTE-B (LTE Rel. 12) as a solution offering high data rate to user terminals (UEs) along with high system capacity through spatial reuse of spectrum. In this paper, we focus on a particular eLA architecture proposed by DOCOMO, called the Phantom Cell architecture, that has the option to support dynamic TDD. For an arbitrarily-located UE in an eLA cell network, we apply results from stochastic geometry to derive expressions for the distribution of DL signal to interference plus noise ratio (SINR) at an arbitrary UE and the distribution of UL SINR at its serving eLA base station (BS). We use these results to study aspects of eLA cell system design, and the sensitivity of SINR to the extent of coordination across eLA cells employing dynamic TDD.

Original languageEnglish (US)
Title of host publication2012 IEEE Globecom Workshops, GC Wkshps 2012
Number of pages7
StatePublished - 2012
Externally publishedYes
Event2012 IEEE Globecom Workshops, GC Wkshps 2012 - Anaheim, CA, United States
Duration: Dec 3 2012Dec 7 2012

Publication series

Name2012 IEEE Globecom Workshops, GC Wkshps 2012


Conference2012 IEEE Globecom Workshops, GC Wkshps 2012
Country/TerritoryUnited States
CityAnaheim, CA


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