Alcatel-lucent USA Inc.

Telefonaktiebolaget Lm Ericsson (publ)

Alcatel Lucent

Intel Corporation

Lucent Technologies Inc.

Alcatel-lucent Technologies Us, Inc.

Intel IP Corporation

Rainer Walter Bachl

Fang-Chen Cheng

Mirko Schacht

Hongwei Kong

Francis Dominique

Daniel Chen Larsson

Dirk Gerstenberger

Lei Song

Tobias Tynderfeldt

Jung Ah Lee

Said Tatesh

Jens Mueckenheim

Stefan Mueller-Weinfurtner

Walid Elias Nabhane

Peter Christian Gunreben

Anil M Rao

Angel Lozano

Steffen Reinhardt

Sudeep K Palat

Shaohua Li

Udo Wachsmann

James Paul Seymour

Henry Hui Ye

Michael A Ruder

Shashi Kant

Wolfgang Gerstacker

Stanislas Bourdeaut

Aravindh Krishnamoorthy

Enrico Jugl

Frank Gerhard Ernst Obernosterer

Daniel Larsson

Antonella Faniuolo

Thomas Wagner

Matthias Schneider

Robert Franz Klaus Kempf

Markus Edmund Philipp

Richard Rau

Thomas Kleinhenz

Vinay V Nair

Florian Derriennic

Stefan Mueller-weinfurtner

Vinay Nair

Michael Ruder

Sudeep Kumar Palat

Stefan MÜLLER-Weinfurtner

A technique for cancelling inter-cell or intra-cell interference in a cellular communication network is described. A method implementation of that technique performed in an interfered terminal comprises receiving a signal, wherein the received signal comprises an interfering signal destined to at least one further terminal different from the interfered terminal. In a next step, control information pertaining to the at least one further terminal is determined and the interfering signal is decoded based on the control information so as to generate decoded information. Then, the interfering signal is re-generated from the decoded information and the control information. Based on the re-generated signal the interfering signal is cancelled from the received signal.

Interference cancellation in a cellular communication network

A technique for performing channel estimation for a wireless communication channel is provided. A determining circuit determines a channel condition for the wireless communication channel. A filtering circuit applies an estimation filter to reference signals transmitted on the wireless communication channel. The filter estimates coefficients for a subset of Resource Elements transmitted on the wireless communication channel. The subset is chosen depending on the determined channel condition. An interpolating circuit interpolates the estimated coefficients for Resource Elements that are not included in the subset.

Channel estimation for a subset of resource elements of a resource block

The invention refers to performing an automatic gain control&#x2014;AGC&#x2014;with respect to a received signal comprising a plurality of consecutive subframes (SS), comprising identifying subframes that are associated to a first subset of the consecutive subframes (S, S, S, S, S. S, S, S, S), performing a first (10) signal power measurement with respect to the received signal during the first subset of the consecutive subframes, and performing the AGC according to the first signal power measurement. The invention further refers to a user equipment and to a corresponding computer program.

Automatic gain control in a heterogeneous mobile communication network

A technique for controlling a receiver to enter a micro sleep mode during which at least one receiver component is temporarily switched off is described. The receiver is configured to process sub-frames each having a first sub-frame portion followed by a second sub-frame portion, the first sub-frame portion carrying information indicative of whether or not the second sub-frame portion needs to be decoded. A method implementation of this technique comprises the steps of providing a regular micro sleep mode in which the receiver component is switched off after the first sub-frame portion has been decoded in case the decoding indicates that the second sub-frame portion does not need to be decoded, providing an extended micro sleep mode in which the receiver component is switched off immediately after the first sub-frame portion has been received, evaluating a mode setting criterion, and controlling the receiver to enter the regular micro sleep mode or the extended micro sleep mode depending on the mode setting criterion.

Micro sleep mode control for a receiver

A communication device is provided including a receiver to receive a signal set. A first equalizer equalizes the signal set in accordance with a first equalization process taking into account that the signal set includes an inter cell interference signal, thereby generating a first equalized signal set. A first calculating circuit is configured to calculate a predefined characteristic of the first equalized signal set. A second equalizer equalizes the signal set in accordance with a second equalization process taking into account that the signal set is free from an inter cell interference signal, thereby generating a second equalized signal set. A second calculating circuit is configured to calculate a predefined characteristic of the second equalized signal set. A selecting circuit is configured to select the first equalized signal set or the second equalized signal set for further processing based on the determined predefined characteristics.

Communication device and method for signal determination in radio communication

The disclosure relates to methods and devices for performing uplink power control in a radio communication system. An example method comprises a step of receiving, at a user equipment (UE) a transmit power control (TPC) command. The method also comprises, if the UE does not have an uplink transmission scheduled for a subframe associated with the TPC command, a step of accumulating, by the UE, the TPC command with previously received TPC commands based on whether the UE has reached a maximum transmit power or a minimum transmit power in a reference format for a Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS) or Physical Uplink Control Channel (PUCCH) transmission. Thus the UE is enabled to receive TPC commands while the UE is not transmitting anything in the uplink.

Method and arrangement for uplink power control

The invention concerns a method of managing coexisting packet streams () in a wireless communication system, and a corresponding controller and a mobile terminal. A first packet stream () of the coexisting packet streams () requires transmission resources of the wireless communication system at fixed time intervals, and a second packet stream () of the coexisting packet streams () requires transmission resources of the wireless communication system at dynamically determined time intervals. A schedule defining allocations of transmission resources for the first packet stream () is set up. A request for an initial grant of transmission resources for a transmission of a data packet () of the second packet stream () is issued. In the process of allocating transmission resources to the second packet stream (), the controller analyzes the schedule of transmission resources allocated to the first packet stream () and thereby determines whether a retransmission () of the data packet () associated with the second packet stream () is possible to collide with a transmission of a data packet () associated with the first packet stream () according to the schedule. The controller transmits a parameter specifying a number N of retransmissions () possible without such collision as part of the initial grant of transmission resources to the mobile terminal.

Method of managing coexisting packet streams

The invention refers to generating a digital signal from an analog signal, wherein the analog signal is amplified according to a gain control value before being converted to a digital value by means of an analog-to-digital converter, wherein a DC offset value of the analog signal is determined, and the gain control value is generated as a function of the dynamic range of the analog-to-digital converter and the DC offset value. The invention further refers to a corresponding circuit and a computer program.

Receiver gain adjustment to reducing an influence of a DC offset

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

A technique for performing channel estimation based on a received signal comprising a first signal part and a second signal part in the presence of an unknown phase discontinuity between the first signal part and the second signal part is presented. A method implementation of this technique comprises providing a first channel parameter that is based on the first signal part, determining a second channel parameter based on the second signal part, estimating the phase discontinuity from the first channel parameter and the second channel parameter, updating the first channel parameter based on the estimated phase discontinuity, and determining a channel estimate based on the second signal part including performing channel estimation filtering using the updated first channel parameter as filter state information.

Technique for channel estimation in the presence of a signal phase discontinuity

A method for filtering measurement values of a measurement quantity obtained from a communication between a mobile device and a mobile communication network and a mobile communication network device adapted to filter such measurement values are provided. A measurement value for the measurement quantity is to be periodically received at fixed points in time. The measurement value is filtered using a digital filter for obtaining a filtering result, wherein the filtering of the measurement value includes the weighting of the measurement value with a weighting coefficient. The filtering result can be provided for an adaptation of the communication link to the mobile device.

Filtering of a measurement quantity in a mobile communication network

The invention refers to a method of determining a channel quality of a communication channel between a wireless transmitter and a wireless receiver, comprising receiving a transport block with one or a plurality of a modulation symbols (y, . . . , y) comprising a plurality of encoded information bits (x, . . . , x), de-mapping the modulation symbols to a plurality of soft values (LLR, . . . , LLR), calculating a mutual information&#x2014;MI&#x2014;measure (MI) as a function of the plurality of soft values (LLR, . . . , LLR), wherein the MI measure is indicative of a mutual dependence between the information bits (x, . . . , x) and the corresponding soft values of said transport block, and determining a channel quality indication value (CQI-Index) as a function of the MI measure (MI). The invention further refers to a program and to a wireless receiver for performing the method.

Channel quality determination of a wireless communication channel based on received data

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Bavaria, Germany

Rainer Walter Bachl