Patent application number | Description | Published |
20080260051 | Method and apparatus for transmitting information simultaneously to multiple destinations over shared wireless resources - In a method for transmitting data, data intended for each user in a set of users is simultaneously transmitted on a plurality of spatial using common time and frequency resources during a first transmission time interval. At a user, a data stream transmitted is received on a plurality of spatial channels, wherein the plurality of spatial channels share common time and frequency resources during a given transmission interval. | 10-23-2008 |
20080299917 | CLOSED-LOOP MULTIPLE-INPUT-MULTIPLE-OUTPUT SCHEME FOR WIRELESS COMMUNICATION BASED ON HIERARCHICAL FEEDBACK - The present invention provides methods implemented in a base station having a plurality of antennas and one or more user terminals. One embodiment of the method includes receiving feedback from at least one user in response to transmitting a first frame to said at least one user. The first frame is formed by pre-coding at least one symbol using at least one first code word selected from at least one first code book associated with the at least one user. The method also includes transmitting at least one second frame to the user(s). The second frame(s) are pre-coded using at least one second codeword selected from at least one second codebook. The second codebook(s) determined based on the feedback and the first codeword(s). | 12-04-2008 |
20090312027 | METHOD FOR ADAPTIVE FORMATION OF CELL CLUSTERS FOR CELLULAR WIRELESS NETWORKS WITH COORDINATED TRANSMISSION AND RECEPTION - The present invention provides a method of forming clusters of cells in a wireless communication system. The method includes accessing information generated by measuring channel conditions for at least one mobile unit and a plurality of cells in the wireless communication system. The method also includes adding more than one of the plurality of cells to at least one cell cluster based on the accessed information and coordinating communication between the cells in each cell cluster and the mobile unit(s). | 12-17-2009 |
20100034151 | METHOD OF JOINT RESOURCE ALLOCATION AND CLUSTERING OF BASE STATIONS - The present invention provides a method for implementation in a first functional entity in a wireless communication system that includes a first plurality of base stations for providing wireless connectivity to at least one mobile unit. In one embodiment of the method includes receiving, at the first functional entity, channel state information associated with a plurality of wireless communication channels between the first plurality of base stations and the mobile unit. Selection of a second plurality of base stations from the first plurality of base stations is performed jointly with resource allocation to the second plurality of base stations using the channel state information. The first functional entity then communicates information indicative of the selected second plurality of base stations and the allocated resources to the selected second plurality of base stations. | 02-11-2010 |
20110211647 | CLOSED-LOOP MULTIPLE-INPUT-MULTIPLE-OUTPUT SCHEME FOR WIRELESS COMMUNICATION BASED ON HIERARCHICAL FEEDBACK - The present invention provides methods implemented in a base station having a plurality of antennas and one or more user terminals. One embodiment of the method includes receiving feedback from at least one user in response to transmitting a first frame to said at least one user. The first frame is formed by pre-coding at least one symbol using at least one first code word selected from at least one first code book associated with the at least one user. The method also includes transmitting at least one second frame to the user(s). The second frame(s) are pre-coded using at least one second codeword selected from at least one second codebook. The second codebook(s) determined based on the feedback and the first codeword(s). | 09-01-2011 |
20120169539 | ROBUST BEAMFORMING FOR ANTENNA ARRAYS THROUGH USE OF MOTION/DISPLACEMENT SENSING - One embodiment of a beamforming system includes an antenna array and at least one sensor configured to sense one of movement and displacement of at least a portion of the antenna array. A processor is configured to control beamforming by the antenna array based on output from the sensor. | 07-05-2012 |
20120171972 | CONFORMAL ANTENNA ARRAY - The present invention relates to a conformal antenna array. Embodiments of the present invention provide a transceiver for communicating data in a cell site of a wireless communication system. The transceiver includes the conformal antenna array including a plurality of antenna elements, where the plurality of antenna elements has a non-linear antenna configuration to occupy at least two dimensions, and a controller configured to transmit multiple bearnforming signals using at least two same antenna elements of the plurality of antenna elements. | 07-05-2012 |
20120172096 | ANTENNA ARRAY FOR SUPPORTING MULTIPLE BEAM ARCHITECTURES - The present invention relates to an antenna array for supporting multiple beam architectures. For example, a transceiver may include an antenna array. The antenna array includes a plurality of antenna elements, where the plurality of antenna elements is configured to support at least two beam architectures in a cell site. Each beam architecture is associated with a different configuration of sectors and beamforming signals. According to one embodiment, each beam architecture is associated with a different wireless standard. According to another embodiment, each beam architecture is associated with a different carrier within one wireless standard. The antenna elements may be arranged as a circular array. | 07-05-2012 |
20130058383 | CLOSED-LOOP MULTIPLE-INPUT-MULTIPLE-OUTPUT SCHEME FOR WIRELESS COMMUNICATION BASED ON HIERARCHICAL FEEDBACK - The present invention provides methods implemented in a base station having a plurality of antennas and one or more user terminals. One embodiment of the method includes receiving feedback from at least one user in response to transmitting a first frame to said at least one user. The first frame is formed by pre-coding at least one symbol using at least one first code word selected from at least one first code book associated with the at least one user. The method also includes transmitting at least one second frame to the user(s). The second frame(s) are pre-coded using at least one second codeword selected from at least one second codebook. The second codebook(s) determined based on the feedback and the first codeword(s). | 03-07-2013 |
20130324120 | LOCAL OPERATIONAL DATA UPLOAD - A mobile device of an apparatus in one example is configured to register with a communication network over a wireless interface through employment of a plurality of parameters for the wireless interface. The mobile device is configured to record operational data in real-time. The mobile device is configured to upload the operational data to a network element of the communication network for optimization of the communication network and/or one or more of the plurality of parameters. | 12-05-2013 |