Alcatel Lucent

Alcatel-lucent USA Inc.

Altiostar Networks, Inc.

Lucent Technologies Inc.

Nokia Technologies Oy

Jung Ah Lee

Fang-Chen Cheng

Said Tatesh

Anil M Rao

Shirish Nagaraj

Rainer Walter Bachl

Si Nguyen

Shabbir A Bagasrawala

Lei Song

Hai Zhou

Matthew Baker

Teck H Hu

Achilles George Kogiantis

Jens Mueckenheim

Philippe R Sehier

Denis Fauconnier

James Paul Seymour

Woodson Dale Wynn

Henry Hui Ye

Steven Andrew Wood

Lawrence Howard Ozarow

Enrico Jugl

Iqbal Jami

Jean-Pierre Balech

Deepak Das

Gregory J Wroclawski

Iqbal Jarni

A method, system, and computer program product for transmission of data in a wireless communications system. A first downlink data is transmitted to a user equipment using a first downlink frequency. A first uplink data is received from the user equipment utilizing a first uplink frequency. A second downlink data is transmitted to the user equipment using a second downlink frequency. A second uplink data is received using the first uplink frequency.

Multi-technology aggregation architecture for long term evolution communications systems

A system, a method, and a computer program product for transmission of data using a multiple input, multiple output communications system with hybrid beamforming in a layer 1 split architecture. A first portion of a signal is processed at a first portion of a physical layer located in a first portion of a base station. A frequency domain compression with statistical multiplexing is applied to the processed first portion of the signal. A compressed first portion of the signal is generated. The compressed first portion of the signal and a second portion of the signal are transmitted to a second portion of the physical layer located in a second portion of the base station.

Multi-site MIMO communications system with hybrid beamforming in L1-split architecture

A method of controlling a load at a wireless communication base station includes determining an indication of a maximum path loss between the base station and any high speed data users currently in a cell served by the base station. A target loading limit for the cell is set based upon the determined indication of the maximum path loss. In disclosed examples, the indication of the maximum path loss corresponds to a distance between a high speed user and a base station. Another factor considered in disclosed examples includes the data rate of such a high speed user.

Load control for wireless base station

Embodiments of the claimed subject matter provide a method and apparatus for virtual sectorization using an active antenna array. Embodiments of the apparatus include a transmitter for providing signals to an active antenna array. The signals cause the active antenna array to transmit a first reference signal to a first sector indicated to user equipment within the first sector by a sector identifier. The signals also cause the active antenna array to transmit a plurality of second reference signals into a corresponding plurality of second virtual sectors that overlap the first sector. The apparatus also includes a scheduler for scheduling transmission to user equipment based on feedback generated by the user equipment using the first reference signal or the second reference signals.

Virtual sectorization using an active anntenna array

The present invention provides a method involving a configurable random access channel structure. One embodiment of the method includes generating a random access channel burst that includes a cyclic prefix and a selected number of repetitions of a preamble. The number of repetitions is selected based on at least one of a cell radius and a radio transmission frequency. This embodiment of the method also includes transmitting the random access channel burst over an air interface.

Configurable random access channel structure for range extension in a wireless communication system

The present invention provides a method and apparatus for using uplink reference signals for access grant requests. The method includes determining that at least one mobile unit is requesting access to at least one uplink channel based on information indicative of a change in a masking sequence applied to at least one reference signal. Another embodiment of the present invention includes providing a first reference signal modulated by a first masking sequence to indicate a request for access to at least one uplink channel.

Method of using uplink reference signals for access grant requests

The present invention provides a method of wireless communication over a communication link including at least one carrier that comprises a plurality of sub-carriers. The method includes modifying at least one frequency of at least one uplink sub-carrier in response to a signal indicating a modification of the frequency.

Frequency synchronization in wireless communication systems

The embodiments relate to a base station and/or radio unit for creating overlaid sectors with carrier aggregation. The radio unit includes a first antenna array including a plurality of first antenna elements. The plurality of first antenna elements are arranged to provide wireless coverage for user equipments on a first frequency carrier in a first coverage area of a cell site. The radio unit also includes a second antenna array including a plurality of second antenna elements. The plurality of second antenna elements are arranged to create at least one sector for providing wireless coverage for the user equipments on a second frequency carrier in a second coverage area within the first coverage area. The radio unit also includes a central unit configured to dynamically adjust one of a location of the second coverage area within the first coverage area and a size of the second coverage area.

Base station and radio unit for creating overlaid sectors with carrier aggregation

The present invention provides a method for mitigating outages in wireless communication systems using feedback for control channels formed by aggregating groups of resource blocks or resource elements, the method. One embodiment of the method includes generating control channel feedback at user equipment. The control channel feedback is generated using one or more measurements performed on signals received at the user equipment over a downlink control channel at a current aggregation level. The method also includes transmitting the control channel feedback over an uplink channel and using this information for the optimal implementation of Cell range expansion by the network.

Method for mitigating outages in heterogeneous networks

The present invention provides a method for range extension is wireless communication systems. One embodiment of the method includes determining whether a mobile unit is within a first range corresponding to a range of timing advances supported by a timing advance command. This embodiment also includes transmitting a plurality of timing advance commands to the mobile unit when the mobile unit is outside the first range so that the mobile unit can synchronize with the base station by combining information in the plurality of timing advance commands.

Method for range extension in wireless communication systems

A wireless communication system () includes an overload control technique that comprises selectively controlling whether a mobile station (-) will respond to a common rate control command. In a disclosed example, a statistical rate control is used such that each mobile station responds to the relative grant based upon a probability that the mobile station should respond. A disclosed example includes selecting two control parameters that influence the probability that a mobile station will respond. The probability in one example is dependent on the data rate currently being used by the mobile station when receiving the relative grant.

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Pittstown, NJ, United States of America

Jung Ah Lee