Motorola Corporation

Nokia Technologies Oy

Motorola Mobility LLC

Nokia Solutions and Networks Oy

Nokia Siemens Networks Oy

Google Technology Holdings LLC

Yuda Yehuda Luz

Ron Rotstein

Alan P Rottinghaus

Daniel Morris Lurey

Jiangnan Jason Chen

Kevin M Laird

Danny T Pinckley

Paul Fielding Smith

John M Smith

Robert C Elder

Shelia Marie Rader

Donald E Bailey

David Baietto

Colin D Frank

Louay A Jalloul

Ronald Thomas Crocker

Keith A Tenbrook

Tony Kobrinetz

Jiangnan (Jason) Chen

John McFarland Harris

Shirish Nagaraj

Robert J Corke

Roy Yang

David T Chen

James F Long

Sheila M Rader

Phil Fleming

Kevin Michael Laird

Danny Thomas Pinckley

Robert T Love

Dean E Thorson

Dale Robert Anderson

Gerald J Gutowski

Gregory M Agami

Anthony Kobrinetz

Ariel Luzzatto

Jason Jiangnan Chen

Louay Adel Jalloul

Arthur Fred Schiemenz, Jr

John Touvannas

Keith TenBrook

Dennis Ray Schaefer

Dan DeClerck

Philip Zhou

Alan Patrick Rottinghaus

Sheila Marie Rader

An exemplary method includes determining, at a centralized processing apparatus of a wireless network, a first subset of downlink user plane data corresponding to one or more wireless user equipments at least by calculating input data required at each of one or more L1 PHY processing stages of a remote processing apparatus, wherein the first subset includes bits required by a remote processing apparatus to select a first symbol for transmission to the one or more user equipments at a first time slot; and streaming, via a fronthaul interface, the bits of the first subset followed by bits of one or more further subset of downlink user plane data, wherein the bits of the further subset of user plane data includes only the bits required to select by the remote processing apparatus a next symbol for transmission to the one or more of the wireless user equipments at a next time slot immediately following the first time slot.

5G cloud RAN method for symbol by symbol bit streaming

This specification describes a method comprising generating a first packet based on user plane data relating to a single user which is output by a first L1 PHY processing stage, the first packet including a proper subset of the user plane data which is to be transmitted to the user equipment during a first time-slot symbol; passing the first packet to a second L1 PHY processing stage across a split fronthaul interface in a first time period having a duration corresponding to a duration of transmission of the first time-slot symbol; and passing one or more subsequent packets including the remainder of the user plane data across the split fronthaul interface in one or more successive time periods which are immediately subsequent to the first time period.

Transportation of user plane data across a split fronthaul interface

A method includes selecting a subset k of N accessible antennas to use to process a transmission received at the N antennas and sent by a user equipment, and processing the transmission from the user equipment at least by using baseband information from the k antennas. An apparatus includes one or more processors and one or more memories including computer program code. The one or more memories and the computer program code are configured to, with the one or more processors, cause the apparatus to perform at least the following: selecting a subset k of N accessible antennas to use to process a transmission received at the N antennas and sent by a user equipment; and processing the transmission from the user equipment at least by using baseband information from the k antennas. Additional apparatus, computer programs, and computer program products are disclosed.

Uplink grouping and aperture apparatus

A method is disclosed that includes accessing baseband information for a number, N (N&#x3e;1), of antennas accessible by a number of baseband units, where the baseband information correspond to a transmission by a user equipment and is received at the N antennas. The method includes determining values for one or more metrics for the baseband information for the N antennas. The method includes selecting, based on the determined values, a subset k of the N antennas and corresponding baseband information to use to determine output data for the transmission by the user equipment. The method includes determining the output data for the user equipment using the baseband information from the k antennas. Apparatus and computer program products are also disclosed.

Cell clustering and aperture selection

An apparatus amplifies RF signals in a communication system by using a first directional coupler having at least two inputs and at least two outputs; at least two RF amplifiers, where an input of each RF amplifier is connected to a different one of the at least two outputs of the first directional coupler; and a second directional coupler having at least two inputs and at least two outputs, where each one of the at least two inputs is connected to an output of a different one of the at least two RF amplifiers. The at least two outputs of the second directional coupler are connected to at least two antennas, respectively.

Wireless backhaul power amplification using fourier transform matricies

A communication device converts a bit stream to multiple symbols and provides encryption at a physical layer by shifting a phase of each symbol of the multiple symbols to produce multiple encrypted symbols. Each encrypted symbol of the multiple encrypted symbols is modulated with an orthogonal subcarrier to produce at least one modulated subcarrier and the at least one modulated subcarrier is then transmitted via a wireless link. On a receive side, a receiving communication device receives the transmitted, encrypted symbols and provides decryption at a physical layer by shifting a phase of each encrypted symbol in correspondence with the phase used to encrypt the symbol at the transmit side.

Method and apparatus for encryption of over-the-air communications in a wireless communication system

In the present technique of data transmission management provided, a composite status indicator value is assessed () based on multiple channel quality indicator reports over a predefined time. The assessed composite status indicator value is compared () to a first threshold value. If the assessed composite status indicator value does not correspond in at least a predetermined way to the first threshold value, the mobile station is classified () in a high speed data region. Otherwise, the assessed composite status indicator value is further compared () to a second threshold, and if it corresponds in at least a predetermined way to the second threshold, the mobile station is classified () in the low speed data region.

Methods for managing data transmission between at least two different data regions

A method and apparatus provide for soft handoff operation of at least a first signal transmitted according to a first communication standard (IS-95B) and a second signal transmitted according to a second communication standard (IS-95C). A mobile station () initially receives the first signal, detects presence of a pilot signal, measures pilot signal strength, transmits a pilot strength measurement message, fails to receive a handoff direction message after transmitting the pilot strength measurement message, searches for detecting presence of a broadcast control channel associated with the type IS-95C cell sites, measures a carrier to interference ratio of the broadcast control channel, compares the carrier to interference ratio to a threshold, if the carrier to interference ratio is above the threshold, initiates a second communication according to IS-95C standard, thus, allowing initiating a soft handoff operation by allowing the base sites to transmit information according to the IS-95B and IS-95C standards respectively via the first and second signals. MScombines the first and second signals to take advantage of the soft hand-off operation.

Method and apparatus for soft handoff communications in a communication system operating according to IS-95B and IS-95C standards

A wireless system, which minimizes nulls within the wireless system, while simultaneously providing diversity. A wireless system will now have increased capacity and coverage due to an enhanced signal to interference ratio in the areas of beam overlap. The system uses time or frequency offset on the signals input to an antenna to minimize interference in the regions of beam overlap. Additionally, polarization diversity can be introduced using Butler Matrices in conjunction with array elements to enhance the interference reduction.

Method and system for minimizing overlap nulling in switched beams

A method, apparatus and system are provided for use in better optimizing switched beam, wireless communications. In some embodiments, a method is provided that receives a communication over a first wireless reverse link beam, selects a type of beam weighting control, determines a rule according to the type of beam weighting control, and determining a weighting of a forward link beam according to the rule. The method can further determine an energy of the first reverse link beam, and determine a first gain energy ratio based on the first reverse link beam energy, such that the weighting is determined by applying the first gain energy ratio to the rule. Some embodiments further determine a pilot beam configuration, wherein the rule is determined according to the pilot beam configuration and the selected type of beam weighting control.

Method and apparatus for optimal multiple beam transmit weightings for beam to beam handoff in a switched beam system

A receiver () is provided receiving signals from differing base stations (BTSand BTS). The signal from BTSis encoded using a first rate convolutional encoder while the signal transmitted from BTSis encoded using a second rate convolutional encoder. Since the multiple base station links may result in a different number of symbols being received for each bit transmitted, the symbols received for each link cannot be simply combined. Therefore, in the preferred embodiment of the present invention, the resulting symbols are passed to multiple branch metric circuits (), where branch metrics (&#x3bc;) for the symbols are obtained. After the ibranch metrics for the base stations are computed, the branch metrics for each base station are passed to a combiner () where they are combined.

Soft handoff between cellular systems employing different encoding rates

An automatic gain control includes a digital lowpass filter for filtering a series of digital samples generated by an analog-to-digital converter to generate a lowpass filtered digital sample series; a power averager coupled to the digital lowpass filter for calculating an average power of the lowpass filtered digital sample series; and a lookup table coupled to the power averager for setting a selectable gain of an amplifier coupled to the analog-to-digital converter as a function of the average power.

Automatic gain control with digital filtering for radio-frequency communications systems

A method and apparatus for reuse of pseudo-random noise (PN) offsets within a cell of a wireless communication system such as a multi-sector CDMA system. Adaptive antenna arrays are employed to form the multiple sector areas within the CDMA cell. A forward link data channel is established between a mobile unit and a base station via sectors that share or reuse comment PN offsets, thereby providing desirable transmit diversity.

Method and apparatus for pseudo-random noise offset reuse in a multi-sector CDMA system

Methods and systems are provided for transmission power control in a multiple access communication system, providing power ramping of a noise floor power level in advance of a high data rate transmission, at a comparatively higher power level, by a mobile station. The preferred method includes receiving a request at a base transceiver station (BTS) for a data transmission by a first mobile station of a plurality of mobile stations (), the data transmission to have a predetermined data transmission power level; measuring a noise floor power level (); and comparing the measured noise floor power level to the predetermined data transmission power level (). When the measured noise floor power level is less than the predetermined data transmission power level, the BTS schedules the data transmission from the first mobile station to occur following the power ramping of the noise floor, and directs the plurality of mobile stations to incrementally increase their transmit power levels to ramp the noise floor power level. Other methodologies to ramp the noise floor power level include injecting analog or simulated noise into the receive path of BTS, or directing the mobile station to transmit meaningless data at increasing power levels prior to transmission of requested data.

System and method for predictive transmit power control for mobile stations in a multiple access wireless communication system

Growing community of inventors

Prairie View, IL, United States of America

Yuda Yehuda Luz