Abstract: Techniques for enabling an estimate of a transmitted signal vector, given a received signal vector and a channel matrix to be computed, are provided. An initial solution signal vector for the estimate is calculated, and based on the initial estimate, a pool of possible solutions is generated. Methods described herein may be iterative in nature, and may cycle through possible estimates of the transmitted signal vector so as to continually improve the estimates and the pool of possible estimates. The methods may terminate once stopping criteria are reached. In some example methods, solutions may be marked at taboo and a taboo period can be established that indicates a number of subsequent iterations for which the current solution signal vector cannot be considered.

Abstract: An Advanced Intelligent Network architecture is used by a first telecommunications service provider having an operator services switch to provide enhanced call processing for operator services calls. The calls received at the operator services switch originate from a second telecommunications service provider, and the first telecommunications service provider provides custom services to the subscribers of the second telecommunication service provider. A call received at the operator services switch triggers the switch to query a control point for instructions, which in turn may query an external service parameter database. The control point instructs the switch to temporarily connect the caller to a peripheral resource providing a custom branding announcement to the caller and a menu of options from which the caller may select popular destinations.

Abstract: The present invention relates to a system and a multistage signal detection method to jointly detect the data symbols transmitted from multiple transmit antennas in a communication terminal and received using multiple receive antennas in another communication terminal.

Abstract: Apparatuses, methods, and other embodiments associated with packet identification are described. One example apparatus includes a packet selection logic to identify packets associated with a data stream. The example apparatus may also include a set of packet classification logics. A packet classification logic may generate a signal as a function of whether an attribute associated with the packet matches an attribute associated with packets generated by a tested application.

Abstract: Embodiments of the disclosure set forth methods for transmitting data in a wireless communication system. Some example methods include converting a data stream to a symbol set and selecting a first plurality of symbols from the symbol set. The first plurality of symbols includes at least a first symbol, a second symbol, a third symbol, a fourth symbol, a fifth symbol, a sixth symbol, a seventh symbol, and a eighth symbol. The methods include generating one or plurality of symbols of a second plurality of symbols based on interleaving two symbols selected from the first plurality of symbols. The methods further include weighting some symbols of the second plurality of symbols and generating a matrix based on symbols selected from the second plurality of symbols and the weighted symbols. The methods also include encoding the data stream based on the matrix.

Abstract: Embodiment of the disclosure set forth methods for transmitting data in a wireless communication system. Some example methods include converting a data stream to a symbol set; selecting a first plurality of symbols from the symbol set, wherein the first plurality of symbols includes at least a first symbol, a second symbol, a third symbol, and a fourth symbol; generating a second plurality of symbols having at least a fifth symbol and a sixth symbol, wherein the fifth symbol includes a first part of the first symbol and a second part of the second symbol and the sixth symbol includes a first part of the third symbol and a second part of the fourth symbol; weighting the sixth symbol to form a first weighted symbol; and transmitting in a first time slot the fifth symbol with a first antenna and the first weighted symbol with a second antenna.

Abstract: In a training cycle, a source node transmits at least one pilot symbol to relay nodes in a training cycle. The relay nodes each amplifies and forwards the pilot symbol to a destination node in an assigned time slot in the training cycle. The destination node sequentially receives multiple versions of the pilot symbol from the relay nodes and estimates channel information based on the multiple versions of the pilot symbol. In data transmission cycles that follow the training cycle, the nodes apply coherent distributed space-time block code (DSTBC) with the estimated channel information to communicate data symbols. The power allocation between training and data cycles may be adjusted to improve the error performance. The nodes may also apply orthogonal frequency division multiplexing (OFDM) based DSTBC when timing errors are not known.

Abstract: Methods and systems for determining a Log-Likelihood Ratio (LLR) corresponding to each bit of a symbol are provided. The symbol comprises a predefined number of bits based on a predetermined constellation. The methods and systems include expanding the predetermined constellation. The predetermined constellation comprises a plurality of constellation-points wherein each constellation-point has a unique X co-ordinate and Y co-ordinate. Also, the expanded predetermined constellation further comprises points corresponding to each combination of the X co-ordinate and the Y co-ordinate of the constellation-points. The methods and systems further include calculating the LLR corresponding to each bit of the symbol based on the expanded predetermined constellation.

Abstract: A method and transceiver for processing a signal in a communication system are provided. The method includes identifying a Channel Impulse Response (CIR) of the signal as of minimum phase, maximum phase, or mixed phase, processing the signal without performing prefiltering when the CIR is identified as minimum phase and performing all pass prefiltering of the signal when the CIR is identified as maximum phase or mixed phase. The transceiver includes a computation block and an all pass filter. The computation block identifies CIR of a signal as minimum phase, maximum phase, or mixed phase, performs root identification when the CIR of the signal is identified to be mixed phase and enables all pass filtering of the signal when the CIR of the signal is identified as mixed phase or maximum phase. The all pass filter transforms the signal to its minimum phase equivalent.

Abstract: An approach is disclosed for providing navigation information for a requested listing to a mobile device caller of a directory assistance call. If the caller selects an option to receive driving directions to the listing destination, the directory assistance provider forwards the listing address to a platform that correlates the address with location coordinates. The platform can poll the calling device to obtain GPS identifying data for the mobile device and derive mapping and routing information.

Abstract: A method to detect data transmitted from multiple antennas, said method comprising steps of: selecting a starting data block and calling it as previous data block; defining a set of indices of bits to be checked for possible flip in the previous data block as a check candidate set; applying update rule to obtain updated data block using the previous data block and the check candidate set, wherein the update is made in such a manner that change in likelihood is positive; checking if the updated data block and several consecutive previous data blocks are the same; if yes, declare the updated data block as the detected data block; if no, make updated data block as previous data block and repeat updation of data block. FIG.

Abstract: The invention relates generally to the field of signal encoding in a multiple input multiple output system in a wireless communication network. This invention specifically relates to a method of encoding and transmitting symbols in a rate-2 complex symbol per second per Hertz transmission system that achieves a maximum diversity of four for a four transmit antenna system and a diversity of three on a three transmit antenna system. The invention discloses a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.

Abstract: The invention relates generally to the field of signal encoding in a multiple input multiple output system in a wireless communication network. This invention specifically relates to a method of encoding and transmitting symbols in a rate-1 complex symbol per second per Hertz transmission system while achieving maximum diversity. The invention discloses a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.

Abstract: A system and method for transferring information in a multi-channel, point-to-point environment are described. In one embodiment, a number of processing chips are connected to a bridge bus. A bridge is connected to the bridge bus and to a system bus. In addition, a memory is connected to the bridge.

Abstract: The invention relates to a vehicle identification tag and methods of verifying the validity of a vehicle identification tag. One embodiment provides a vehicle identification tag including a first portion having a radio frequency identification (“RFID”) tag and a second portion, where information on the first portion and information on the second portion assist a user in verifying that the vehicle identification tag is a valid vehicle identification tag.

Abstract: A system and method for transferring information in a multi-channel, point-to-point environment are described. In one embodiment, a number of processing chips are connected to a bridge bus. A bridge is connected to the bridge bus and to a system bus. In addition, a memory is connected to the bridge.

Abstract: A system and method for transferring information in a multi-channel, point-to-point environment are described. In one embodiment, a number of processing chips are connected to a bridge bus. A bridge is connected to the bridge bus and to a system bus. In addition, a memory is connected to the bridge.

Abstract: The invention discloses self-seal mailer form constructions comprising and methods of making form constructions.

Abstract: The present invention relates to a halogen-free, multilayered, uniaxially oriented heat shrink film comprising (A) a core layer comprising a blend of polyolefins; (B) a first skin layer on the upper surface of the core layer, and (C) a second skin layer on the lower surface of the core layer, wherein the first and second skin layers independently comprise a polyolefin blend and wherein the shrinkage of the film is at least about 40% in the machine direction at 270° F. The present invention further relates to a label having an adhesive applied to at least a portion of at least one of the skin layers of the multilayered heat shrink film. The heat shrink labels of the present invention are used to encapsulate articles.

Abstract: A weather resistant sign and a method of printing a sign including the steps of providing a sign component and an image definition, applying dry toner powder to surface portions corresponding to the image definition, and fusing the applied toner. Preferably, the fused toner is protected from weather by a transparent protective layer. A toner composition and a computer program for printing are also disclosed.