| Patent application number | Description | Published |
|---|
| 20080232234 | CHANNEL SOUNDING TECHNIQUES FOR A WIRELESS COMMUNICATION SYSTEM - A technique for channel sounding in a wireless communication system includes determining respective geometries of multiple subscriber stations with respect to a serving base station. Respective time periods for sounding a channel between the multiple subscriber stations and the serving base station are then set based on the respective geometries of the multiple subscriber stations. | 09-25-2008 |
| 20080232300 | REFERENCE SIGNAL SELECTION TECHNIQUES FOR A WIRELESS COMMUNICATION SYSTEM - A technique for improving link performance in a wireless communication system includes detecting whether subscriber stations in the wireless communication system are power-limited. The subscriber stations include at least a first subscriber station that is power-limited and a second subscriber station that is not power-limited. The technique assigns a first reference signal having a first cubic metric to the first subscriber station and a second reference signal having a second cubic metric to the second subscriber station. In this case, the first cubic metric is lower in magnitude than the second cubic metric. | 09-25-2008 |
| 20080232308 | METHOD AND SYSTEM FOR WIRELESS COMMUNICATIONS BETWEEN BASE AND MOBILE STATIONS - A method and system for wireless communications between base and mobile stations use reference signals transmitted from base stations prior transmission of data signals. The reference signals are used to determine propagation characteristics of communication channels between the base and mobile stations and optimize, in real time, parameters of receivers of the mobile stations for processing the following data signals. Applications of the invention include wireless communication systems compliant with OFDMA, 3GPP LTE, RFN-OFDMA, OFDM, TDMA, and the like communication protocols. | 09-25-2008 |
| 20080233964 | Uplink control channel allocation - Various methods of allocating uplink control channels in a communication system are implemented at a resource scheduler or a user equipment (UE). In one method the scheduler reserves resources for a downlink data channel and signals a corresponding downlink data channel grant and also reserves resources for a persistent uplink control channel for a longer duration than the data channel grant. Signaling overhead associated with a grant for this persistent uplink control channel is reduced over a full dynamic grant. A predetermined rule can be used at the scheduler and at the UE to avoid overhead signaling associated with a grant for this persistent control channel. Predetermined rules at the UE and scheduler can also be used to reserve appropriate resources and select appropriate MCS levels for control information and the control information and uplink data can be transported over a common uplink channel when a time overlap occurs between an uplink data channel and the persistent control channel. | 09-25-2008 |
| 20080233992 | Resource allocation in a communication system - Methods and corresponding systems for determining a transmit power in a mobile device include receiving, in the mobile device, a cell-wide power control parameter related to a target receive power at a serving base station. Thereafter, a transmit power is calculated in response to the cell-wide power control parameter and an implicit mobile-specific power control parameter. The mobile device then transmits using the transmit power. The cell-wide power control parameter can be a cell target signal to interference-plus-noise ratio, or a fractional power control exponent. The implicit mobile-specific power control parameter can be a modulation and coding level previously used by the mobile device, or a downlink SINR level measured by the mobile device. | 09-25-2008 |
| 20080268785 | UE-autonomous CFI reporting - In a closed-loop wireless communication system ( | 10-30-2008 |
| 20080268857 | CHANNEL SOUNDING TECHNIQUES FOR A WIRELESS COMMUNICATION SYSTEM - A technique of operating a wireless communication system includes determining respective geometries of multiple subscriber stations, which include a first subscriber station and a second subscriber station, with respect to a serving base station. Respective channel sounding bandwidths for sounding the channel between the multiple subscriber stations and the serving base station are then scheduled, based on the respective geometries. The respective channel sounding bandwidths include a first channel sounding bandwidth (associated with the first subscriber station) and a second channel sounding bandwidth (associated with the second subscriber station). The first channel sounding bandwidth is greater than or equal to the second channel sounding bandwidth and the first subscriber station has a lower geometry than the second subscriber station. | 10-30-2008 |
| 20080268888 | TECHNIQUES FOR IMPROVING CONTROL CHANNEL ACQUISITION IN A WIRELESS COMMUNICATION SYSTEM - A technique of operating a wireless communication system includes determining respective geometries of multiple subscriber stations, which include a first subscriber station and a second subscriber station, with respect to a serving base station. Respective control channels, which include a first control channel associated with the first subscriber station and a second control channel associated with the second subscriber station, for the multiple subscriber stations are then scheduled based on the respective geometries. The first control channel is scheduled to be encountered earlier in a control channel search procedure, of the one or more control channel symbols, than the second control channel. The first subscriber station has a lower geometry than the second subscriber station. | 10-30-2008 |
| 20080318579 | Techniques for Resource Block Mapping in a Wireless Communication System - A technique of operating a wireless communication device includes creating a resource block map by associating respective subscriber station identifications, corresponding to respective subscriber stations, with one or more resource blocks. The respective subscriber station identifications and the resource block map are transmitted, from a serving base station, in one or more control channel symbols. | 12-25-2008 |
| 20090060102 | FAST PREDICTIVE AUTOMATIC GAIN CONTROL FOR DYNAMIC RANGE REDUCTION IN WIRELESS COMMUNICATION RECEIVER - A method of fast predictive automatic gain control is disclosed including estimating channel gain applied to a received signal, predicting channel gain at a subsequent time by applying temporal correlation statistics to the estimated channel gain, determining a predicted receiver gain which reduces variance between the predicted channel gain and a predetermined target power level, and applying the predicted receiver gain to the received signal. The method may include applying linear minimum mean-squared error prediction to the estimated channel gain. The method may include predicting error variance at the subsequent time by applying the temporal correlation statistics to the estimated channel gain and combining the predicted channel gain and the predicted error variance. The method may include estimating channel gain of known pilot symbols, estimating a temporal correlation function using the estimated channel gain, and determining predicted channel gain using the estimated channel gain and the estimated temporal correlation function. | 03-05-2009 |
| 20090086669 | Techniques for Reducing a Cell Identification Falsing Rate in a Wireless Communication System - A technique of operating a wireless communication device includes selecting, from a primary sequence group that includes respective primary sequences, one of the respective primary sequences as a first portion of a cell identification (ID). In this case, the respective primary sequences are each associated with respective secondary sequence subgroups included in a secondary sequence group. Each of the respective secondary sequence subgroups include secondary sequences. One of the secondary sequences is selected (from one of the respective secondary sequence subgroups that is associated with the selected one of the respective primary sequences) for a second portion of the cell ID. At least some of the secondary sequences are only included in one of the respective secondary sequence subgroups. The first portion of the cell ID is encoded on a first downlink waveform that is to be transmitted and the second portion of the cell ID is encoded on a second downlink waveform that is to be transmitted. The first and second downlink waveforms are then transmitted. | 04-02-2009 |
| 20090116599 | Techniques for Signaling Reference Signal Parameters in a Wireless Communication System - A technique for operating a wireless communication device includes assigning a reference signal bandwidth to a reference signal. Cyclic shift control bits (associated with the reference signal) are then allocated based on the assigned reference signal bandwidth. The allocated cyclic shift control bits specify a cyclic shift associated with the reference signal. | 05-07-2009 |
| 20090181690 | DYNAMIC ALLOCATION OF COMMUNICATION RESOURCES IN A WIRELESS SYSTEM - A method of receiving information by a wireless communication device is provided. The method includes receiving a plurality of wireless subframes at a periodic interval, wherein an interval duration of the periodic interval is greater than a duration of each of the plurality of wireless subframes. The method further includes determining for each wireless subframe of the plurality whether the wireless subframe includes a grant resource that indicates that a resource unit pattern of a plurality of selectively assignable resource unit patterns of resource units of the subframe includes information for the communication device. A method of transmitting information by the wireless communication device is also provided. | 07-16-2009 |
| 20090181691 | Channel Rank Feedback in Multiple-Input Multiple-Output Commnication Systems - Embodiments of a system and methodology are disclosed for aperiodic (i.e., non-periodic) feedback of channel-side information, such as channel rank information, to a base station by having the receiver/UE initiate the feedback instead of using a scheduled feedback approach. The autonomous feedback of channel-side information may use one of several different types of physical channel structures for uplink scheduling requests, such as those being discussed for inclusion in the emerging LTE platform standard. | 07-16-2009 |
| 20090245148 | Techniques for Channel Sounding in a Wireless Communication System - A technique of operating a wireless communication device includes receiving an assigned starting point index and an assigned reference signal bandwidth for a reference signal. The reference signal is then transmitted multiple times, beginning at an initial resource block that is associated with the assigned starting point index and in accordance with the assigned reference signal bandwidth, across a shared channel. | 10-01-2009 |
| 20090316647 | CONTROL AND DATA INFORMATION COMMUNICATION IN A WIRELESS SYSTEM - A method of transmitting data information and control information is provided. The method includes encoding the control information and encoding the data information. The method further includes modulating the control information and modulating the data information. The method further includes spreading the modulated control information using a spreading code to generate spread control information. The method further includes superimposing the spread control information with the modulated data information. The method further includes transmitting the modulated data information with the superimposed spread control information. | 12-24-2009 |
| 20100061278 | System and method for controlling a wireless device - A method is provided for controlling operation of a wireless device, including: receiving an initial incoming signal from a remote device in a first operational mode, the initial incoming signal including information related to an initial remaining battery power in the remote device; determining that a second operational mode will be a first possible mode if the initial remaining battery power in the remote device is within a first power range; determining that the second operational mode will be a second possible mode if the initial remaining battery power in the remote device is within a second power range; and transmitting instructions to the remote device in the first operational mode to transmit and receive in the second operational mode. | 03-11-2010 |
| 20100322226 | Pilot signal in an FDMA communication system | 12-23-2010 |
| 20110096707 | Channel Sounding Techniques for a Wireless Communication System - A technique of operating a wireless communication system includes determining respective geometries of multiple subscriber stations, which include a first subscriber station and a second subscriber station, with respect to a serving base station. Respective channel sounding bandwidths for sounding the channel between the multiple subscriber stations and the serving base station are then scheduled, based on the respective geometries. The respective channel sounding bandwidths include a first channel sounding bandwidth (associated with the first subscriber station) and a second channel sounding bandwidth (associated with the second subscriber station). The first channel sounding bandwidth is greater than or equal to the second channel sounding bandwidth and the first subscriber station has a lower geometry than the second subscriber station. | 04-28-2011 |
