Blackberry Corporation

Research in Motion Corporation

Yongkang Jia

Hua Xu

Shiwei Gao

Zhijun Cai

Robert Mark Harrison

Youn Hyoung Heo

Masoud Ebrahimi Tazeh Mahalleh

Amin Mobasher

Mo-Han Fong

James Earl Womack

Andrew Mark Earnshaw

Yufei W Blankenship

Takashi Suzuki

Alireza Bayesteh

Vahid Pourahmadi

Siva Dharshan Muruganathan

Yi Song

Sean Michael McBeath

Dongsheng Yu

Shouxing Qu

Chandra Sekhar Bontu

Shiguang Guo

Huan Wu

Jack Anthony Smith

Tarik Tabet

Yi Yu

Sophie Vrzic

Yan Xin

Shalini Suresh Periyalwar

Mark Pecen

Arnold Sheynman

Robert Mark Harrsion

Sean Bartholomew Simmons

Mark Earnshaw

Rene Waraputra Purnadi

Farzaneh Kohandani

Yufei Wu Blankenship

Sean Michael Mcbeath

Zhijun Sam Cai

A method and system to signal transmission layers or dedicated reference signal ports to be used in a multiple input multiple output system, the method including providing a downlink control signal containing information for transmission layers or dedicated reference signal ports utilized, the dedicated reference signal ports being associated with the transmission layers; and using the information to demodulate data on each transmission layer.

Method and system for signaling transmission layers for single user and multi user MIMO

A method for receiving a PDCH is provided. The method includes receiving, by a UE, information identifying a plurality of resource elements that are transmitted with zero power in a resource block containing the PDCH; receiving, by the UE, a first DMRS on a first DMRS port transmitted from a first cell; and receiving, by the UE, the PDCH that is transmitted on the first DMRS port.

Interference measurement methods for advanced receiver in LTE/LTE-A

Systems, methods, and apparatuses for using band-limited subframes in wireless communication networks are provided. During the band-limited subframes, the macro cell base station may mute its transmission or transmit at a low power over some frequency sub-band, while transmitting at a normal or higher power over other frequency sub-band. Correspondingly, the small cell base station may communicate with UEs within its coverage at the frequency sub-band that the macro cell base station transmits at a low power. The band-limited subframe enables the small cell base station to communicate with the UE with reduced interference, and in the meantime, increases the throughput of macro cell base station as it does not require the macro cell base station to completely mute its transmission during the band-limited subframe.

Systems and methods for band-limited subframes in wireless networks

A method for receiving a PDCH is provided. The method comprises: receiving, by a UE, information identifying a plurality of resource elements that are transmitted with zero power in a resource block containing the PDCH; receiving, by the UE, a first DMRS on a first DMRS port transmitted from a first cell; and receiving, by the UE, the PDCH that is transmitted on the first DMRS port.

A method is provided for communication in a wireless telecommunication system. The method comprises generating a sequence of signals of an enhanced physical HARQ (hybrid automatic repeat request) indicator channel (E-PHICH). The method further comprises mapping the sequence of signals of the E-PHICH to a first set of resource elements, wherein the first set of resource elements is multiplexed with a second set of resource elements over a set of virtual resource blocks, and wherein the second set of resource elements carries at least one of an enhanced physical downlink control channel (E-PDCCH) and a physical downlink shared channel (PDSCH).

Enhanced PHICH transmission for LTE-advanced

In some implementations, a method in a wireless network includes allocating a radio resource to a plurality of transmitters. The radio resource is configured for simultaneously transmitting and receiving user data with varying transmission delays. User data bursts are received, from the plurality of transmitters, with varying transmission delays transmitted over the allocated radio resource with varying resource identities.

Simultaneously accessing shared resources

A method for communication in a wireless network is provided. The method includes a relay node receiving a data packet and determining whether to transmit the packet without performing error checking.

Packet delay optimization in the uplink of a multi-hop cooperative relay-enabled wireless network

A method of operating an eNB in a wireless communication network is provided. The method comprises transmitting, by the eNB to a UE, configuration information of first and second sets of CSI-RS resources, wherein the first set of CSI-RS resources is used for long term measurement and the second set of CSI-RS resources is used for short term CSI feedback.

Methods and systems of wireless communication with remote radio heads

Methods, apparatus and articles of manufacture to enable retransmitting of communications in a mobile network using small cell clusters are disclosed. Example methods disclosed herein for a macro node in a mobile network include configuring a cluster of small cell nodes in communication with the macro node to perform retransmission of downlink packets sent from the macro node to a first user equipment (UE) served by the macro node. Such example methods also include sending a first downlink packet from the macro node for receipt by the first UE. Such example methods further include receiving acknowledgment information for the first downlink packet from the cluster of small cell nodes.

Retransmitting communications in a mobile network using small cell clusters

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Ottawa, Canada

Yongkang Jia