Samsung Electronics Co., Ltd.

Phazr, Inc.

Lucent Technologies Inc.

Alcatel-lucent USA Inc.

Telefonaktiebolaget Lm Ericsson (publ)

Qualcomm Incorporated

Alcatel Lucent

Farooq Khan

Zhouyue Pi

Jianzhong Zhang

Cornelius Van Rensburg

Jiann-An Tsai

Juho Lee

Arnab Das

Ashwin Sampath

Joonyoung Cho

Eran Pisek

Sridhar Rajagopal

Ying Li

Shadi Abu-Surra

Sanjiv Nanda

Jin-Kyu Han

Rakesh Taori

Khurram Muhammad

Nandu Gopalakrishnan

Baowei Ji

Aris Papasakellariou

Young-Han Nam

Joseph R Cleveland

Kaushik Morapakkam Josiam

Sudhir Ramakrishna

Youn Hyoung Heo

Joon Young Cho

Ju Ho Lee

Jin Kyu Han

Reiner Ludwig

Yan E Wang

Hwan-Joon Kwon

Joon-Young Cho

Ju-Ho Lee

Dong-Hee Kim

Anders Furuskär

Teck H Hu

Pantelis Monogioudis

Ganapathy Subramanian Sundaram

Changhoi Koo

Oren E Eliezer

William Joseph Semper

Krishna Balachandran

Richard Stirling-Gallacher

Krishna Kamal Sayana

Bruno Clerckx

Ashok N Rudrapatna

Mooi Choo Chuah

Jae-Seung Son

Robert Clark Daniels

Jiannan Tsai

Yinong Ding

Hsuan-Jung Su

Sidharth Balasubramanian

Paul Gilliland

Achilles George Kogiantis

Bela Rathonyi

Khalil Haddad

David Di Huo

Srinivas R Kadaba

Douglas Norman Knisely

Jignesh Patel

Eddy Kwon

Cornelius Van Rensberg

Subramanian Vasudevan

Per Johan Beming

Magnus C Frodigh

Jung Je Son

Kong Posh Bhat

Eshwar Pittampalli

Sarath Kumar

Johan Nyström

H&aring;kan Gunnar Olofsson

Doyoung Kim

Dalibor Turina

Jaeseung Son

Mehmet Oguz Sunay

Kameswara Rao Medapalli

Abhishek Nagar

Wenfeng Zhang

Yunsong Yang

Anders Furusk&auml;r

Bill Semper

Mattias Wallman

Pravir Patel

Amab Das

Safwan Zaheer

Stefan J&aring;verbring

B&eacute;la Stefan Kazmir Rathonyi

James Murdock

Hamidreza Memarzadeh

Magnus Persson

Sverker Magnusson

Yoon Hyoung Heo

Abu-Surra Shadi

Stefan JÄVERBRING

A method for determining a route from a mesh network to an external network includes identifying route segments from a user equipment (UE) to the external network. The route segments comprise at least a first route segment from the UE to a first mesh access point (AP), a second route segment from the first mesh AP to the external network through a wide area cellular wireless network (WACWN), and a third route segment from the first mesh AP to the external network through an alternative network. The method further includes determining respective bandwidth of at least the first, second and third route segments and selecting the route based on the bandwidth of the first, second and third route segments, wherein the route comprises at least two of the route segments. The method also includes routing data between the UE and the external network via the selected route.

Link aggregation for mesh networks

A wireless transmitter includes a signal processing circuit configured to generate a plurality of first and second spatial streams signals. The transmitter includes a frequency shift circuit configured to selectively apply different frequency shifts to the first and second spatial streams signals. A wireless receiver includes a frequency shift circuit configured to selectively apply different frequency shifts to the received first and second spatial streams signals. The receiver also includes a signal processing circuit configured to process the first and second frequency shifted signals.

Systems and methods for bandwidth expansion and frequency scaling

Selective crest factor reduction and digital pre-distortion of physical channels and physical signals in a wireless communication network are disclosed. A method for wireless communication includes allocating transmission bandwidths for physical channels and physical signals and determining if the total allocated transmission bandwidth for the physical channels and the physical signals is less than or equal to a first bandwidth threshold value. If the total allocated transmission bandwidth is less than or equal to the first bandwidth threshold value, the method includes digitally pre-distorting the physical channels and the physical signals and transmitting the digitally pre-distorted physical channels and physical signals. The method also includes applying digital crest factor reduction to the physical channels and the physical signals if the total allocated transmission bandwidth is less than or equal to a second bandwidth threshold value.

Selective crest factor reduction and digital pre-distortion of physical channels and physical signals

A method for wireless communication includes transmitting at least first and second uplink signals by a UE to first and second virtualized radio units, respectively. The first and second uplink signals are processed by one or more virtual machines shared by both the first and second radio units. The UE switches connection from the first virtualized radio unit to the second virtualized radio unit without a transfer of context information from the first virtualized radio unit to the second virtualized radio unit. A first virtual machine implements at least one of a lower physical layer (PHY-Low), an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), and a radio frequency (RF) transceiver. A second virtual machine implements at least one of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a higher physical (PHY-high) layer.

Wireless communications using virtualized base stations network

Methods and apparatus for feeding back channel quality indication in a communication system. First, a first channel quality indication index is determined in dependence upon a channel quality estimation of a first transmission channel, and a second channel quality indication index is determined in dependence upon a channel quality estimation of a second transmission channel. A differential channel quality indication index of the second channel quality indication index is determined with reference to the first channel quality indication index in dependence upon a differential compression scheme. Then, the first channel quality indication index and the differential channel quality indication index are reported.

Methods and apparatus for channel quality indication feedback in a communication system

A method of wireless communication includes receiving a plurality of parameter values at a user equipment (UE) using a first local oscillator (LO) frequency value, where the plurality of parameter values includes indications of a downlink frequency channel and an uplink frequency channel. The method further includes determining a second LO frequency value at the UE, where the second LO frequency value is determined using the indications of downlink and uplink frequency channels. The method further includes receiving downlink signals from an associated base station using the second LO frequency value.

Signaling methods for communication systems with widely spaced downlink and uplink frequency channels

Methods and systems for channel mapping in a densely deployed network are disclosed. The system includes a node comprising a plurality of base stations configured to communicate with client devices in a wireless communication network, wherein transmission from the base stations to the client devices is conducted on a downlink (DL) frequency band and transmission from the client devices to the base stations is conducted on an uplink (UL) frequency band. The DL frequency band is different from the UL frequency band. DL and UL frequency pairs for the base stations are assigned according to a channel mapping scheme that determines DL and UL frequency pairs based on a plurality of channel parameters. The channel parameters include, for example, received signal strength indicator (RSSI), signal to noise (S/N) ratio, channel capacity, and bit error rate (BER).

Methods and systems for channel mapping in a communication network

A method for wireless communication includes multiplexing transmit data into at least a first component carrier data and a second component carrier data. The method further includes digitally pre-coding at least the first and second component carrier data for digital beamforming. The method also includes converting, by digital to analog conversion, the digitally pre-coded first and second component carrier data to first and second analog signals. The method also includes processing the second analog signals to generate analog beamformed millimeter wave band signals and transmitting the millimeter wave band signals. The method also includes processing the first analog signals to generate sub-7 GHz band signals and transmitting the sub-7 GHz band signals, wherein the sub-7 GHz band signals are transmitted with digital beamforming and without analog beamforming, and wherein the millimeter wave band signals are transmitted with both digital and analog beamforming.

Methods and systems for spectrum aggregation in wireless communication

A method for wireless communication includes allocating a transmission bandwidth for transmission to a user equipment (UE). The method further includes determining if the allocated transmission bandwidth is less than or equal to a maximum estimated BW. The maximum estimated BWis the maximum estimated signal bandwidth that a transmitter is configured to digitally pre-distort. The method also includes digitally pre-distorting transmit signals and transmitting the digitally pre-distorted transmit signals to the UE if the allocated transmission bandwidth is less than or equal to the maximum estimated BW. The method also includes transmitting to the UE without digitally pre-distorting the signals if the allocated transmission bandwidth is not less than or equal to the maximum estimated BW. The method also includes applying digital crest factor reduction to the transmit signals if the allocated transmission bandwidth is less than or equal to the maximum estimated BW.

Methods and systems for selective crest factor reduction and digital pre-distortion in wireless transmitters

Systems and methods enable wireless devices to measure interference and allow coexistence by preventing transmission on bands that are currently in use by other devices.

Wireless system and methods for coexistence under concurrent use of sub-7 GHz and millimeter wave spectrum

A method of downlink and uplink frequency channel assignments in widely-spaced downlink and uplink frequency channels includes determining a downlink block length by dividing a millimeter wave spectrum into a plurality of downlink spectrum blocks and determining an uplink block length by dividing a sub-6 GHz spectrum into a plurality of uplink spectrum blocks. The method includes dividing the downlink block length into a plurality of downlink channels and dividing the uplink block length into a plurality of uplink channels. The method includes determining a starting local oscillator frequency from center frequencies of the first uplink and downlink channels and uplink and downlink channel bandwidths. The method includes determining a plurality of uplink and downlink communications channel pairs based on a frequency mapping relationship based on the starting local oscillator frequency. The method includes assigning a first uplink and downlink communications channel pair to a user.

Assignment of downlink and uplink frequency channels in widely-spaced downlink and uplink channels

A method of wireless communication using time division duplex over widely spaced frequency bands by a radio base station includes transmitting millimeter wave band downlink signals comprising a plurality of first transmission time intervals (TTIs) and receiving millimeter wave band uplink signals comprising at least one second TTI. The number of first TTIs is greater than the number of second TTIs. The method includes transmitting sub-7 GHz band downlink signals comprising at least one third TTI and receiving sub-7 GHz band uplink signals comprising a plurality of fourth TTIs. The number of third TTIs is less than the number of fourth TTIs.

Methods and systems for asynchronous time division duplex by radio base station

Multifaceted radio base station

Methods and apparatus for remapping and regrouping transmission resources in a wireless communication system. First, a set of new permutation algorithms based on Galois field operation is proposed. Then the proposed algorithms and the known Pruned Bit Reversal Ordering (PBRO) algorithm are applied to several of various resource mapping schemes, including slot or symbol level Orthogonal Cover (OC)/Cyclic Shift (CS) mapping, cell-specific slot-level and symbol-level CS hopping patterns, and subframe and slot level base sequence hopping patterns.

Resource remapping and regrouping in a wireless communication system

Growing community of inventors

Allen, TX, United States of America

Farooq Khan