| Patent application number | Description | Published |
|---|
| 20080219343 | SYSTEMS AND METHODS FOR PROCESSING A SIGNAL WITHIN A COMMUNICATIONS SYSTEM WITH A SUPERIMPOSED REFERENCE SIGNAL - A method for processing a signal within a communications system is described. A signal transmitted over a channel is received that includes an information signal and a reference signal. The information signal includes data. The reference signal is superimposed on the data. A channel impulse response of the channel is estimated based on the reference signal. The information signal is equalized based on the estimation of the channel impulse response by compensating the signal, estimating the information signal, canceling the reference signal and recovering the data. | 09-11-2008 |
| 20080232235 | SYSTEMS AND METHODS FOR REDUCING PEAK TO AVERAGE CROSS-CORRELATION FOR SEQUENCES DESIGNED BY ALTERNATING PROJECTIONS - A method for using a numerical method to design reference signals for multiple input multiple output (MIMO) systems is described. An input multiple input multiple output signal is determined. A nearest tight frame to one or more given structured vectors is obtained. One or more structured vectors from the nearest tight frame are obtained. Orthogonal subsets are computed for a plurality of sequences, wherein each of the subsets is replaced with a matrix that comprises a function of one or more elements in each of the plurality of sequences and an identity matrix associated with the one or more elements. The one or more structured vectors are projected onto the space of circulant matrices. One or more classes of matrices associated with reference signals are outputted. | 09-25-2008 |
| 20090003420 | SYSTEMS AND METHODS FOR EMBEDDING A FIRST SIGNAL IN THE CODING OF A SECOND SIGNAL - A method for embedding a first signal in the coding of a second signal is described. A value of the first signal is determined. A codebook based on the value of the first signal is generated. A second signal is encoded using a codeword from the generated codebook. The encoded second signal is modulated into a plurality of symbols, wherein the symbols are distributed according to the value of the first signal. The modulated symbols are inserted into one or more time slots of a sequence. | 01-01-2009 |
| 20090103482 | SYSTEMS AND METHODS FOR USING A FORMAT OF AN UPLINK CONTROL CHANNEL TO TRANSMIT A CHANNEL QUALITY INDICATOR - A method for using a format of an uplink control channel to transmit a channel quality indicator (CQI) is described. The uplink control channel is provided in a first format. The uplink control channel in the first format carries either the CQI or acknowledgment/non-acknowledgment (ACK/NAK) information. The CQI or the ACK/NAK information is inserted into the uplink control channel. Either the CQI or the ACK/NAK information is transmitted through uplink control channel. | 04-23-2009 |
| 20090111480 | SYSTEMS AND METHODS FOR TRANSMITTING CONTROL INFORMATION VIA A CONTROL SIGNALING CHANNEL - A method for transmitting control information may include providing formatting rules that define a format for transmission of the control information to a base station via a control signaling channel. The control information may include a channel quality indicator (CQI), an acknowledgement/non-acknowledgement (ACK/NACK), a pre-coding matrix indicator (PMI), and rank information. The method may also include providing combination rules as part of the formatting rules. The combination rules may define how the CQI, the ACK/NACK, the PMI, and the rank information are combined for transmission on the control signaling channel. The method may also include transmitting the control information to the base station via the control signaling channel in accordance with the defined formatting rules. | 04-30-2009 |
| 20090115649 | SYSTEMS AND METHODS FOR MULTI-LEVEL EMBEDDED CODING AND DECODING - A method for multi-level embedded coding may include performing multiple single-level embedded coding operations in order to code multiple types of information. Each single-level embedded coding operation may include coding a second type of information and embedding a first type of information into the coding of the second type of information. Embedding the first type of information into the coding of the second type of information may include determining a desired symbol distribution for a modulated codeword corresponding to the second type of information such that a symbol corresponding to the first type of information is more prevalent within the modulated codeword than other symbols. | 05-07-2009 |
| 20090219895 | SYSTEMS AND METHODS FOR GENERATING A CODEBOOK TO ENCODE EMBEDDED INFORMATION - A method for generating a codebook to encode embedded information is described. A distribution pattern of symbols is determined. A first number of codewords associated with the distribution pattern of symbols is determined. A subset of codewords from the first number of codewords is selected. The subset of codewords is included in the codebook if the subset of codewords satisfies predetermined performance criteria. | 09-03-2009 |
| 20090268624 | SYSTEMS AND METHODS FOR MEASUREMENT AND FEEDBACK OF CHANNEL QUALITY INDICATOR INFORMATION - User equipment may receive configuration information indicating whether the user equipment provides feedback of channel quality indicator (CQI) information in virtual resource block mode or physical resource block mode. If the configuration information indicates that the user equipment provides feedback in virtual resource block mode, the user equipment may calculate the CQI information for virtual resource blocks. The user equipment may feed back the CQI information for the virtual resource blocks to a Node B. | 10-29-2009 |
| 20100002669 | SYSTEMS AND METHODS FOR ADAPTIVELY SELECTING A DECODING SCHEME TO DECODE EMBEDDED INFORMATION - A method for selecting a decoding scheme to decode information is described. A codeword that represents at least a first message of a first information type and a second message of a second information type is received. A distribution pattern of symbols associated with the codeword is determined. The distribution pattern is compared to a threshold. A decoding scheme is selected based on the comparison. | 01-07-2010 |
| 20100066573 | SYSTEMS AND METHODS FOR PROVIDING UNEQUAL ERROR PROTECTION USING EMBEDDED CODING - A method for embedded encoding of at least two types of information is described. A first message and a second message are received. The types of a first encoder and a second encoder are determined. The rates of the first encoder and the second encoder are determined. A first codeword and a second codeword are generated. A mapping rule for the second codeword and a coding rule for the first codeword are determined. The second codeword is mapped into a plurality of symbols using the mapping rule. A third codeword is determined using the first codeword, the plurality of symbols, and the coding rule. The third codeword is then transmitted. The third codeword includes at least two types of information. | 03-18-2010 |
