Nec Laboratories America, Inc.

Nec Corporation

Honghai Zhang

Sampath Rangarajan

Rajesh Mahindra

Narayan Prasad

Ravindranath Kokku

Yuanxi Jiang

Mohammad Ali Khojastepour

Karthikeyan Sundaresan

Guosen Yue

Jubin Jose

Meilong Jiang

Yan Xin

Jongwon Yoon

Luca Venturino

Peilong Li

Methods and systems for data flow control include establishing a first connection between a gateway and a network client responsive to a connection request from the network client; establishing a second connection between the gateway and a server specified by the connection request; determining a user class for the network client based on a level of network congestion detected at the gateway based on throughput and round-trip-time delays; modifying a data flow received at the gateway on the second connection to remove data from the flow based on the determined user class of the network client; and transmitting the modified data flow to the network client via the first connection.

Flow management for data streams over cellular networks

A method for video multicast delivery for 4g wireless networks includes collecting client feedback and obtaining supportable modulation and coding scheme MCS for each client over a base station of wireless network, prioritizing video packets for said clients and setting a utility for each of the video packets; performing a radio resource allocation for determining a utility optimization for transmitted frames of the video packets; and assigning an MCS to each transmitted frame of the video packets, responsive to step performing a radio resource allocation.

Method for multicast video delivery for 4G cellular networks

Disclosed herein are techniques, methods, and apparatus pertaining to a multi-user scheduling in 4G and 3GPP LTE cellular uplinks.

Multi-user scheduling in cellular uplinks

The present invention is directed to a method employing a basestation with downlink and uplink flows of information between users; remotely virtualizing the flows from an entity external to the basestation without any modification to the basestation; and creating virtual basestations or networks responsive to the remotely virtualizing.

Remote virtualization of a cellular basestation

A method for uplink power control implemented in a wireless communications system including one or more user equipment, a serving base station, and at least one neighboring base station is disclosed. The method comprises measuring, at each user equipment, pathloss, sending, from each user equipment to the serving base station, the pathloss, and determining, at the serving base station, uplink transmit power based on the pathloss. Other methods, systems, and apparatuses also are disclosed.

Uplink power control

A fractional frequency reuse method for assigning physical resource units of a contiguous frequency band to sectors of cells is disclosed. Each cell includes at least one base station, for transmission of data to users in the sectors The method comprises, for each cell, segmenting the frequency band such that each separate segment includes a first contiguous portion of physical resource units dedicated to all sectors of the cell in vicinities of the center of the cell and a second contiguous portion of physical resource units dedicated for use in only one of the sectors in the cell in an outer area of the cell, assigning each cell with a physical resource unit configuration such that the second contiguous portion of physical resource units of a sector of a given cell partially overlaps with the first contiguous portion of physical resource units in a segment including the second contiguous portion dedicated to the same sector of a cell neighboring the given cell, and transmitting the data to the users in the sectors in accordance with the assigned physical resource unit configurations. Other methods, apparatuses, and systems also are disclosed.

Dynamic and configuration based fractional frequency reuse for uneven load distributions

A basestation used in a wireless communications system is disclosed. The basestation includes a plurality of flow management schedulers, wherein the base station receives an indication of function selection from an entity, and wherein the base station chooses for the entity one of the plurality of flow management schedulers according to the indication of function selection. Other methods, apparatuses, and systems also are disclosed.

Method and system for customizable flow management in a cellular basestation

A method to allocate resources in a wireless MIMO system, by enforcing per-cell orthogonality to avoid intra-cell interference; and allocating resources based on interference handling.

Resource allocation in mimo multi-cellular networks via submodular optimization

A network virtualization method in a wireless communication system includes aggregating sets of uplink and downlink flows on a cellular basestation into groups; allocating wireless resources to each of the sets as a respective basestation slice; and enabling each of the sets of flows to be under a distinct administrative entity.

Method and system for virtualizing a cellular basestation

A method for LTE or WiMAX scheduling includes collecting, by a basestation BS, channel feedback from multiple mobiles with downlink traffic. The channel feedback enables the BS to determine an achievable rate or block error probability if transmitting to a mobile with a given modulation and coding scheme MCS and multiple-input multiple-output MIMO mode. The method includes determining, by the BS, which of the mobiles is scheduled on each resource block RB and what the MCS and MIMO mode is selected for each scheduled mobile, and allocating bits on the set of the RBs assigned to each scheduled mobile.

Method for LTE downlink scheduling with MIMO

A method implemented in an apparatus used in a radio access network (RAN) sharing system including a plurality of basestations is disclosed. The method includes estimating resource requirement or demand of one or more entities in each base station according to feedback from the plurality of basestations, computing resource allocation for said one or more entities, and enforcing the computed resource allocation using basestation-level virtualization. Other methods, apparatuses, and systems also are disclosed.

Radio access network sharing

A method includes receiving non-elastic traffic into a cellular network serving users; varying long-term dissatisfaction of the users with dynamic resource allocations during traffic overload of the cellular network, the long term dissatisfaction being measured by at least one of a function of number of times a user from the users receives bad quality of service and a level of deterioration of quality of service to the user; and influencing number of satisfied users of the cellular network responsive to the varying of long-term dissatisfaction.

Dynamic resource partitioning for long-term fairness to non-elastic traffic on a cellular basestation

A method includes receiving input information related to transmission of video and data by an access point in a wireless network, the input information including at least one of setup connections, modulating and coding scheme MCS; receiving, by the access point, channel state each information from each user in the wireless network, the channel state information including signal-to-interference-and-noise-ratio SINR for each user under each beam pattern; and multicast beamform scheduling, responsive to the receiving, for multicast delivery of the video and data from the access point with beamforming antennas, the videos being at least one of a multi-resolution and a multi-layered video, the scheduling including a greedy procedure for selecting beams, assigning MCS and video layer or resolution to each of the beams.

Multicast video and data delivery with beamforming antennas in indoor wireless networks

A method of uplink resource allocation is disclosed. The method includes computing a set of utilities for each of a finite set of transmission modes with a processor across a plurality of user devices, each having multiple transmit antennas, and iteratively allocating uplink resource blocks (RBs) and transmission modes to the plurality of user devices until all users have been allocated or no allocation is found, by selecting a mode that has a highest incremental utility sum for each user across one or more RBs, determining which user has the highest incremental utility sum, allocating the mode and RBs associated with the highest incremental utility sum to the user, and removing the allocated user from consideration. Other apparatuses, systems, and methods also are disclosed.

Resource allocation in 4G MIMO cellular uplinks

A method for customizable flow management in a cellular basestation is disclosed. The method includes configuring a framework on a cellular basestation; and executing customized flow management functions through the framework by an external entity. Other methods, apparatuses, and systems also are disclosed.

Growing community of inventors

Ewing, NJ, United States of America

Honghai Zhang