| Patent application number | Description | Published |
|---|
| 20100238824 | FEEDBACK MECHANISMS FOR BEAMFORMING OPERATION - A method for generating feedback data is described. A downlink message is received from a base station. It is determined whether full channel reciprocity or partial channel reciprocity is enabled at a transmitter. A mode for feedback data generation is determined. Feedback data is generated using the determined mode. The feedback data includes beamforming information. The feedback data is transmitted to the base station. The feedback data may include a channel quality indicator (CQI) and a rank. | 09-23-2010 |
| 20100246527 | METHODS AND APPARATUS FOR GENERATION AND USE OF REFERENCE SIGNALS IN A COMMUNICATIONS SYSTEM - Apparatus and methods for generation and use of reference signals in a wireless communications system are described. A group-specific reference signal pattern may be generated for provision to a group of UEs or terminals in communication with an eNodeB or base station. The reference signal may be generated based on system parameters. Reference signals may be generated to span multiple contiguous physical resource blocks. | 09-30-2010 |
| 20110205954 | EXTENSION OF UE-RS TO DWPTS - Systems and methodologies are described that facilitate sending and/or receiving user equipment specific reference signals (UE-RSs) in a wireless communication environment. A UE-RS pattern can be selected, yielded, etc. based upon a number of symbols from a subframe utilized for downlink transmission. At least one time domain component of the UE-RS pattern can vary based upon the number of symbols from the subframe utilized for the downlink transmission. For instance, the at least one time domain component can be punctured, time-shifted, and so forth. Further, UE-RSs can be mapped to resource elements of the subframe as a function of the UE-RS pattern. Moreover, a UE can utilize the UE-RS pattern to detect UE-RSs on the resource elements of the subframe. Further, the UE can estimate a channel based upon the UE-RSs. | 08-25-2011 |
| 20110237267 | UE-RS SEQUENCE INITIALIZATION FOR WIRELESS COMMUNICATION SYSTEMS - Pseudo-random sequences of a plurality of user equipment specific reference signals (UE-RSs) for use by a plurality of user equipments (UEs) are initialized, the initialization of each pseudo-random sequence associated with each UE-RS being independent of a specific UE identifier and independent of a resource bandwidth assigned to a specific UE. Pseudo-random sequences of the UE-RSs are generated. At least one of the pseudo-random sequences is mapped to a portion of common resources for at least one UE among the plurality of UEs. | 09-29-2011 |
| 20110244877 | METHOD AND APPARATUS FOR USING CHANNEL STATE INFORMATION REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A method for wireless communication is disclosed which includes selecting a first resource pattern comprising resource elements that are non-colocated with a second resource pattern and allocating the first resource pattern to a plurality of antennas for transmitting a channel state information reference signal. | 10-06-2011 |
| 20110252139 | METHOD AND APPARATUS FOR PUNCTURING DATA REGIONS FOR SIGNALS TO MINIMIZE DATA LOSS - Methods and apparatuses are provided that facilitate puncturing codeblocks in resource blocks for muting or transmitting signals of a disparate technology such that the puncturing similarly impacts the codeblocks. Codeblocks can be mapped in order across frequency in a given data symbol before moving to a next data symbol. In this regard, utilizing data resource elements substantially evenly spaced across frequency and across data symbols in a data resource block for transmitting signals of the disparate technology can substantially equalize impact of the puncturing to related codeblocks. In addition, resources can be allocated to legacy devices, devices with bandwidth, data rate, or quality of service requirements, devices of a certain rank or geometry, etc., based at least in part on the puncturing. Moreover, a modulation and coding scheme can be selected for generating codeblocks based at least in part on the puncturing and its effect on performance. | 10-13-2011 |
| 20110268050 | APPARATUS AND METHOD FOR JOINT ENCODING OF USER SPECIFIC REFERENCE SIGNAL INFORMATION IN WIRELESS COMMUNICATION - An apparatus and method for providing encoded information pertaining to a user-specific reference signal associated with a user equipment in a multiple access wireless communication system are provided. The encoded information jointly indicates a rank of transmission together with at least one parameter relating to the user-specific reference signal, such as a set of antenna ports and a user-specific reference signal pattern. The encoded information is transmitted in a downlink control channel to reduce overhead in the channel. | 11-03-2011 |
| 20110268100 | METHOD AND APPARATUS FOR HIERARCHICAL CODEBOOK DESIGN IN WIRELESS COMMUNICATION - A method for use in a multi-user, multi-input multi-output (MU-MIMO) system includes generating a family of codebooks comprising at least one codebook set, the codebook set comprising a plurality of codebooks organized base on a transmission rank and providing the family of codebooks for use in a multiple description coding (MDC) channel feedback scheme. | 11-03-2011 |
