J
Ji Tingfang
Researcher at Qualcomm
Publications - 125
Citations - 1859
Ji Tingfang is an academic researcher from Qualcomm. The author has contributed to research in topics: Telecommunications link & Base station. The author has an hindex of 6, co-authored 125 publications receiving 1791 citations.
Papers
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Journal ArticleDOI
A survey on 3GPP heterogeneous networks
Aleksander Damnjanovic,J. Montojo,Yongbin Wei,Ji Tingfang,Tao Luo,Madhavan Srinivasan Vajapeyam,Taesang Yoo,Osok Song,Durga Prasad Malladi +8 more
TL;DR: The need for an alternative strategy, where low power nodes are overlaid within a macro network, creating what is referred to as a heterogeneous network is discussed, and a high-level overview of the 3GPP LTE air interface, network nodes, and spectrum allocation options is provided, along with the enabling mechanisms.
Proceedings ArticleDOI
LTE Femtocells: System Design and Performance Analysis
Alan Barbieri,Aleksandar Damnjanovic,Ji Tingfang,Juan Montojo,Yongbin Wei,Durga Prasad Malladi +5 more
TL;DR: This paper considers a heterogeneous LTE network where femto cells are randomly deployed in a macro network according to the two models described in [1], namely dual-strip and NxN and discusses an autonomous power control method, which allows to dramatically reduce the outage probability.
Patent
Dynamic grant-free and grant-based uplink transmissions
Sun Haitong,Jay Kumar Sundararajan,Soriaga Joseph Binamira,Wanshi Chen,Peter Gaal,Hao Xu,Ji Tingfang,Wei Zeng +7 more
TL;DR: In this article, a wireless communication device dynamically selects between a grant-free mode and a grantbased mode based on at least a transmission configuration, and sends a first data packet in the grant free mode, based on the selecting, using a first UL resource.
Patent
Techniques for power control and management
TL;DR: In this article, the authors present a power control and management for enhanced mobile broadband (eMBB)/ultra-reliable low latency (URLLC) multiplexing.