| LEGEND SILICON CORP. Patent applications |
| Patent application number | Title | Published |
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| 20110080526 | MULTIPLE TUNER TERRESTRIAL DTV RECEIVER FOR INDOOR AND MOBILE USERS - A device is provided. the device comprises A device comprising: a Frequency Domain Maximum Ratio Combining Decision Feedback Equalizer (FD-MRC-DFE), a first device down stream to the FD-MRC-DFE; a second device down stream to the FD-MRC-DFE; and a third device for averaging the outputs of the first device and the second device. | 04-07-2011 |
| 20110058600 | MULTIPLE TUNER ATSC TERRESTRIAL DTV RECEIVER FOR INDOOR AND MOBILE USERS - A device is provided. the device comprises a maximum ratio combining (FD-MRC-DFE), a first device down stream to the FD-MRC-DFE; and a second device upstream to the maximum ratio combining (FD-MRC-DFE) having a second point directly connected to a first point within the first device. The method for producing the device is also provided. | 03-10-2011 |
| 20110026579 | NOVEL EQUALIZER FOR SINGLE CARRIER TERRESTRIAL DTV RECEIVER - An equalizer is provided. The equalizer comprises a frequency domain a minimum-mean square-error (MMSE) decision feedback equalization (DFE) block having a backward filter co-efficient (BFC) feature adapted to operate in a single carrier environment. | 02-03-2011 |
| 20100082720 | CURVE-FITTING METHOD TO CALCULATE COARSE FREQUENCY OFFSET - A method comprising the steps of: providing a known sequence comprising a plurality of data points; and curve-fitting the plurality of data points to calculate coarse frequency offset. | 04-01-2010 |
| 20100080281 | METHOD TO CALCULATE THE REAL DECISION FEEDBACK EQUALIZER COEFFICIENTS - A method used in a time domain equalizer is provided. The method comprising the steps of: providing a time domain equalizer comprising; and extracting a real part of an input or a derivative of the input to the time domain equalizer and using the only real part of the input in the time domain equalizer to derive an output of the time domain equalizer. | 04-01-2010 |
| 20100080280 | DECISION FEEDBACK EQUALIZER WITH PARTIAL FEEDBACK EQUALIZER IN A VARIABLE SIDEBAND COMMUNICATIONS SYSTEM - In a receiver of a multi-leveled variable sideband communications system, a method is provided that comprises the steps of: dividing the receiver into a real portion and a complex portion; and providing a decision feedback equalizer (DFE) processing data substantially in the real portion. | 04-01-2010 |
| 20100080278 | FILTER STRUCTURE IMPLEMENTATION RELATING TO A LINEAR SYSTEM SOLUTION - A method used in a time domain equalizer is provided. A method comprising the steps of: providing a time domain equalizer comprising a feed forward equalizer and a feedback equalizer; and using a filter circuit or structured implementation to incorporate conjugate gradient iteration in order to calculate a set of coefficients of the time domain equalizer. Whereby matrix times vector operations is converted into filtering using the filter circuit. | 04-01-2010 |
| 20100080277 | USING CONJUGATE GRADIENT METHOD TO CALCULATE FILTER COEFFICIENT FOR TIME DOMAIN EQUALIZER - A method used in a time domain equalizer is provided. A method comprising the steps of: providing a time domain equalizer comprising a feed forward equalizer and a feedback equalizer; and using a conjugate gradient iteration in order to calculate a set of coefficients of the time domain equalizer. | 04-01-2010 |
| 20100080276 | METHOD FOR NON-PILOT TONE DATA-AIDED CARRIER FREQUENCY TRACKING - A method comprising the steps of providing a slicer for slicing real values of an equalizer output; and cross correlating an equalizer input with an output of the slicer is provided. | 04-01-2010 |
| 20100080275 | TRAINING OF THE NON-UPDATED DECISION FEEDBACK EQUALIZER FOR A 8-VSB RECEIVER - A method for training of a non-updated decision feedback equalizer is provided. The method comprising the steps of: providing a sequence of frames adapted to be received by a receiver; provide a sequence of synchronization frames interposed between a predetermined number of frames; and using at least part of the sequence of synchronization frames to train a decision feedback equalizer (DFE), thereby speeding up system convergence or making system convergence possible. | 04-01-2010 |
| 20100031130 | FORWARD ERROR CORRECTION (FEC) AND VARIABLE LENGTH CODE (VLC) JOINT DECODING - A method for decoding is provided. The method comprises the step of: using information known to a channel decoder to determine a path between two data points, whereby reducing error or bad data effects. | 02-04-2010 |
| 20100027614 | ERROR AWARENESS AND MEANS FOR REMEDYING SAME IN VIDEO DECODING - A DTV receiver having method using elastic decoding method is provided. The method comprises the steps of: receiving a signal for processing; decoding the signal using a source decoder; determining a portion of the signal that are problematic; and using elastic decoding to remedy the portion of the signal that are problematic. | 02-04-2010 |
| 20090316804 | METHOD AND APPARATUS TO IMPLEMENT OFDMA RANGING IN WIMAX SYSTEM - A communications processing device includes a rotor for rotating information associated with ranging subchannels in some symbols; and a single inverse fast Fourier transformer (IFFT), coupled to rotor, for subjecting the rotated information to a single IFFT along with information from all other channels. A method comprising the steps of: rotating information associated with ranging subchannels in some symbols; and subjecting the rotated information to a single IFFT along with information from all other channels. | 12-24-2009 |
| 20090316680 | TDS-OFDMA COMMUNICATION CINR ESTIMATION - In a TDS-OFDM communications system, within a frame time, a transmitted signal comprising a preamble, a downlink sub-frame, and an uplink sub-frame. Within the downlink sub-frame, interposed between sub-frames are guard intervals that have known sequences positioned therein. The known sequences are used for an estimation of a received power. A method comprising the step of using a guard sequence in a guard interval of OFDM symbols of the received TDS-OFDM signals in the downlink or the uplink to estimate a received signal power and using the estimated signal power to calculate a CINR is provided. | 12-24-2009 |
| 20090282313 | METHOD AND APPARATUS FOR HARD DECISION BOUNDED DISTANCE DECODING OF NORDSTROM ROBINSON CODE - A receiver is provided that comprises a decoder. The decoder comprises: means for slicing a signal; means for encoding data/messages to a code word among a predetermined number of code words; and means for determining a distance associated with the code word. | 11-12-2009 |
| 20090279619 | METHOD AND APPARATUS FOR CELL EDGE TRANSMISSION PERFORMANCE ENHANCEMENT FOR TDS-OFDM - In a communication system with multiple base stations having at least one base station with communications overlaps with at least another base station, a method is provided. The method comprising the steps of: characterizing the users into a first group and a second group, and adjusting some PN lengths of transmitted information for one group of users. The system includes users of a TDS-OFDM system, | 11-12-2009 |
| 20090222712 | DECODING SCHEME FOR CORRECTING BOTH ERASURES AND ERRORS OF REED-SOLOMON CODES IN A DIGITAL COMMUNICATION SYSTEM - A method for correcting both erasures and errors of Reed-Solomon codes in a digital communication system is provided. The method comprises the steps of: calculating a syndrome; calculating a set of erasure locations; replacing errata evaluator polynomial by a function having a difference value; and replacing errata locator polynomial by a function having the difference value. | 09-03-2009 |
| 20090213953 | Bit Log Likelihood Ratio (LLR) Computation of a 32-QAM System - A method and apparatus for computing and comparing the LLR of a 32-QAM mapping by splitting the mapping point to a most significant bit and four Least Significant Bits. Forming two groups based upon the characteristic of the most significant bit. Use the characteristics of an associated 16-QAM mapping to compute the four Least Significant Bits of the 32-QAM mapping. | 08-27-2009 |
| 20090135951 | METHOD AND APPARATUS FOR POWER CONTROL TECHNIQUES IN AN OFDM BASED RECEIVER - A method comprising the steps of: providing a receiver based on synchronous, sequential, digital design techniques, wherein the receiver is subdivided into stages or sub-devices; providing a primary reset, which initializes the receiver to a known state; and providing a primary clock for changing the known state based on other inputs to the receiver. An OFDM receiver comprising: a primary reset, which initializes the receiver to a known state; and a primary clock for changing the known state based on other inputs to the receiver, wherein the receiver is divided into a plurality of sub-devices forming a sequential device; and a control signal for overriding the primary clock and holding a plurality sequential elements in a reset state. | 05-28-2009 |
| 20090135935 | DIGITAL TV RECEIVER HAVING BUILT-IN DIVERSITY STRUCTURE - A receiver is provided that comprises: a channel estimator; a first path for feeding the estimated information into a frequency domain equalizer; a second path for feeding the estimated information into a time domain equalizer; and a combiner or selector to combine or select equalized information from the frequency domain equalizer and the time domain equalizer. | 05-28-2009 |
| 20090113275 | BCH CODE WITH 256 INFORMATION BYTES AND UP TO 8 BYTES OF PARITY CHECK ELEMENTS - A coding system comprises pre-multiply the message u(x) by Xn−k. Obtain the remainder b(x), i.e. the parity check digits. And combine b(x) and Xn−ku(x) to obtain the code polynomial. A decoding method comprises calculating a syndrome; finding an error-location polynomial; and computing a set of error location numbers. | 04-30-2009 |
| 20090103600 | MOBILE RECEIVER EQUALIZER STRUCTURE FOR USE IN THE ATSC STANDARD - A receiving device is provided that comprises: a channel estimator adapted to receive an input; and an equalizer adapted to receive the input and generate an equalized output, wherein the equalized output is used by the channel estimator for at least one subsequent channel estimation. | 04-23-2009 |
| 20090079882 | ANALOG TV SIGNAL DECODING USING DIGITAL TUNER WITH I AND Q OUTPUT - A dual use TV receiver for both analog TV and DTV using a digital tuner for processing analog signals and converting same to its respective I and Q components is provided. A method for producing a television receiver comprising the step of providing a digital tuner for processing analog signals to its respective I and Q components is provided. | 03-26-2009 |
| 20090070659 | LDPC DECODER WITH AN IMPROVED LLR UPDATE METHOD USING A SET OF RELATIVE VALUES FREE FROM A SHIFTING ACTION - In a decoder having an improved LLR (log-likelihood-ratio) update method is provided. The method comprising the steps of: providing a parity check matrix; and using merely a set of parameters on a row of the parity check matrix instead of data of the whole non-zero elements of the parity check matrix free from at least one shifting action after each row updating; thereby saving memory space and process time. | 03-12-2009 |
| 20090041136 | METHOD AND APPARATUS FOR RECOGNITION OF TRANSMISSION PARAMETER SIGNALING (TPS) AT FREQUENCY DOMAIN IN A TDS-OFDM RECEIVER - A receiver comprises a method is provided. The method has the step of: determining a transmission parameter signaling (TPS) parameter based a group of vectors inherent to a communication system. | 02-12-2009 |
| 20090019068 | DECODER WITH REDUCED MEMORY REQUIREMENTS DECODING OF VIDEO SIGNALS - A decoder decoding at a block level provided. The decoder comprises: a down-scalar receiving a multiplicity of blocks of data and down-scaling the blocks of data at the block level and storing the down-scaled data in a memory; and an output device for outputting the down-scaled blocks of data at the block level. | 01-15-2009 |
| 20090016428 | METHOD AND APPARATUS FOR DECODING OF VIDEO SIGNALS HAVING REDUCED MEMORY AND A NOVEL METHOD FOR OUTPUT THEREFORE - A method and apparatus for in mobile communication systems, wherein the display image size is less than that of in the home entertainment purpose, are provided. Instead of using the high definition video decoding from incoming bit stream to the memory and the display for any size video display, the image is scaled during the decoding process to save the memory size and memory access bandwidth at a macro-block level. As the result, the power consumption involved will be substantially reduced, and the reduce display optimized. | 01-15-2009 |
| 20090015721 | METHODS AND APPARATUS USING SHARED STORAGE FOR CANNEL ERROR CORRECTION AND MULTIMEDIA DECODING AND PROCESSING IN A DIGITAL TV SYSTEM - An OFDM receiver is provided that comprises a channel decoder; a source decoder; and a memory controller coupled to the channel decoder and source decoder to control the channel decoder, the source decoder and a memory separate from the apparatus such that the memory is shared by both the channel decoder and the source decoder. | 01-15-2009 |
| 20090010361 | METHOD AND APPARATUS FOR LOCATIONING USING THE GUARD INTERVALS OF TDS-OFDM DIGITAL TELEVISION SIGNALS - A TDS-OFDM receiver for positioning using guard intervals comprising PN sequences is provided. The receiver comprises the step of calculating a transmission time of at least one PN among a plurality of PNs in a digital television (DTV) signal or information originating from a transmitter and transmitted to a mobile receiver. | 01-08-2009 |
| 20090010347 | TDS-OFDMA Communication Open-Loop Power Control - In a TDS-OFDM communications system, within a frame time, a transmitted signal comprising a preamble, a downlink sub-frame, and an uplink sub-frame. Within the downlink sub-frame, interposed between sub-frames are guard intervals comprising known sequences. The known sequences are used for an estimation of a received power. A method comprising the step of using a guard sequence in a guard interval of OFDM symbols of the received TDS-OFDM signals in the downlink to estimate a received signal power or an interference power is provided. | 01-08-2009 |
| 20090010346 | TDS-OFDMA Communication System - In a TDS-OFDM communications system, a frame structure comprising: a frame such that within a frame time, a transmitted signal comprising a preamble, a downlink sub-frame, and an uplink sub-frame is provided. | 01-08-2009 |
| 20090010345 | TDS-OFDMA COMMUNICATION CLOSED-LOOP POWER CONTROL - In a TDS-OFDMA communications system, a frame structure comprising: a frame such that within a frame time, a transmitted signal comprising a preamble, a downlink sub-frame, and an uplink sub-frame; and interposed between OFDM symbols are guard intervals comprising known sequences being used for an estimation of a received power. | 01-08-2009 |
| 20090009396 | METHOD AND APPARATUS FOR LOCATIONING USING DVB-T DIGITAL TELEVISION SIGNALS - A receiver for positioning using DTV signals is provided. The receiver comprises the step of calculating a transmission time of at least one pilot signal among a plurality of pilot signals disposed within a digital television (DTV) signal or information originating from a transmitter and transmitted to a mobile receiver. | 01-08-2009 |
| 20090005084 | METHOD AND APPARATUS FOR POSITIONNG USING ATSC DIGITAL TV SIGNALS - An apparatus for positioning comprising a method is provided. The method includes the step of calculating a transmission time of a training sequence of a television signal from a transmitter to a mobile receiver. | 01-01-2009 |
| 20080320374 | METHOD AND APPARATUS FOR DECODING A LDPC CODE - In a decoder having a predetermined decoder structure for decoding a low density parity check (LDPC) code suitable for decoding multi-rated LDPC codes is provided. An associated method is provided. The method comprises the steps of: providing a memory for the decoding with the memory size proportional to the number of circularly shifted-identity matrices I (t); and providing a number M for both row update unit numbers and column-update unit numbers. Whereby an improved architecture having an improved logic and the memory is provided such that an improved throughput, power consumption, and memory area are achieved. | 12-25-2008 |
| 20080279295 | TDS-OFDMA COMMUNICATION SYSTEM UPLINK TIMING SYNCHRONIZATION - In a TDS-OFDM communications system for uplink wireless communication multiple accesses through sub-channelization, the system comprising: a plurality of users with each user using a portion of available time-frequency radio resources to achieve orthogonal multiple access; a plurality of available bandwidth, wherein the available bandwidth is divided into multiple sub-bands; at least one the sub-carrier in each sub-band. Inside the sub-band for each user, at least one guard sequence, being used as the guard interval between transmitted symbols. | 11-13-2008 |
| 20080279148 | TDS-OFDMA COMMUNICATION SYSTEM USER IDENTIFICATION - In a TDS-OFDM communications system for uplink wireless communication multiple accesses through sub-channelization, the system comprising: a plurality of users with each user using a portion of available time-frequency radio resources to achieve orthogonal multiple access; a plurality of available bandwidth, wherein the available bandwidth is divided into multiple sub-bands; at least one the sub-carrier in each sub-band. Inside the sub-band for each user, at least one guard sequence, being used as the guard interval between transmitted symbols. | 11-13-2008 |
| 20080276151 | METHOD AND APPARATUS FOR DECODING A LDPC CODE - In a decoder for decoding a low density parity check (LDPC) code suitable for decoding multi-rated LDPC codes, a method is provided. The method comprises the steps of: providing a memory for the decoding with the memory dependent on a parity check matrix H with maximum number of “1”s; using a number of column updating units, updating columns parallely and simultaneously producing messages; and using a number of row updating units, updating rows parallely and simultaneously producing messages. Whereby an improved architecture in a logic and the memory is provided such that an improved throughput, power consumption, and memory area is achieved. | 11-06-2008 |
| 20080273643 | APPARATUS AND METHOD OF EXACT TIME FRAMING IN A DMB-TH TRANSMITTER - A transmitter comprising: a digital encoder for encoding incoming digital information; and a digital to analog converter for converting the encoded digital information into analog information is described. The transmitter further comprises an exact time framing block disposed between the digital encoder and the digital to analog converter. The exact time framing block receives the digitally encoded information and comprises a method for synchronization. The method including the steps of: providing a clock signal having at least two adjacent pulses; providing information subjected to transmission in the form of a set of frames; and accommodating a whole number of frames between the two adjacent pulses. | 11-06-2008 |
| 20080273080 | METHOD AND APPARATUS FOR DECISION FEEDBACK LOCATIONING USING DIGTITAL TELELVISION SIGNALS - A method using DTV signals for positioning is provided. The method comprises the step of calculating a transmission time of a data segment of a television signal from a transmitter to a mobile receiver. | 11-06-2008 |
| 20080247473 | MULTIPLE SUB-BANDS TDS-OFDM TRANSMISSION SCHEME - An OFDM system is provided. The system comprises: a single symbol among a series of symbols comprising; and a series PN sequences interposed between the series of symbols, with at least one PN sequence comprising a set of PN sub-sequences, wherein each PN sub-sequence is respectively associated with an ordered sub-central frequency within the single symbol. | 10-09-2008 |
| 20080235642 | METHOD AND APPARATUS FOR LOCALIZED PLANNING IN AN INTEGRATED CIRCUIT - A method for an improved circuit design is provided. The method comprises the steps of: provide a core ring around a circumference of a circuit design; determining at least two stages of the circuit design; identifying a set of macros for at least one stage; and placing the set of macros within an area of the circuit. | 09-25-2008 |
| 20080232519 | METHOD AND APPARATUS FOR COMPENSATING CHANNEL CHANGES FOR FAST FADING CHANNELS - A method for compensating channel changes in an OFDM system is provided. The method comprises the steps of: providing at least two PN sequences; and using the parameters of the at least two PN sequences for determining a set of compensated values of data disposed between the at least two PN sequences. | 09-25-2008 |
| 20080232482 | METHOD AND APPARATUS FOR CONSTRUCTING RECEIVER DIVERSITY FOR OFDM SIGNALS - In an orthogonal frequency division multiplex (OFDM) communication system, a method at a receiver end is provided. The method comprises the steps of: providing a frame; providing a guard interval (GI) associated with the frame, the GI having a length in a time domain larger or longer than a channel span; and extracting OFDM information comprising a first OFDM information starting from a first point after the channel span to a first end point within the frame. | 09-25-2008 |
| 20080232481 | METHOD AND APPARATUS FOR CHANNEL INTERPOLATION IN A TDS-OFDM SYSTEM OR DVB T/H SYSTEM - In an OFDM system, a method for interpolating comprising the steps of: subdividing at least one frame among a plurality of frames into segments; and using at least two known quantities to interpolate a corresponding estimate. | 09-25-2008 |
| 20080232451 | METHOD AND APPARATUS FOR EQUALIZATION OF FAST CHANGING CHANNELS IN A TDS-OFDM SYSTEM - A method for channel equalization is provided. The method comprises the steps of: subdividing a received symbol portion into segments wherein each segment is associated with a known, segmented channel characteristic among a set of segmented, known channel characteristics spanning the received symbol. | 09-25-2008 |
| 20080232450 | METHOD AND APPARATUS FOR ROBUST FREQUENCY EQUALIZATION - In frequency equalization, a received signals goes through frequency transform, the transformed signal is divided by a frequency transform of a channel response a method for equalization. The method comprises the step of: adjusting a quotient of the division by a weight function, wherein the function varies under a set of conditions; whereby for a frequency selective channel, deep fades are adjusted, and noise or interference are reduced. | 09-25-2008 |
| 20080232357 | LS DIGITAL FOUNTAIN CODE - A packet transmission system having existing null packets is provided. The system comprises a transmitter side transmitting information packets having null packets filled with redundancy information or parity check information; and a receiver side receiving the information packets and decoding the information packets using a predetermined decoding method; whereby the information packets are transmitted only once. | 09-25-2008 |
| 20080232237 | METHOD AND APPARATUS FOR ROBUST TIMING RECOVERY OF OFDM SYSTEM FOR FAST FADING CHANNELS - In an orthogonal frequency division multiplex (OFDM) communication system, a method comprising the step of performing time estimation in a time domain. | 09-25-2008 |
| 20080232236 | METHOD AND APPARATUS FOR CHANNEL ESTIMATION OF OFDM WITH FREQUENCY INSERTED PILOTS - In an OFDM system having guard intervals interposed between symbols or frames, and having pilot signals distributed within the symbols or frames, a method for channel estimation is provided. The method comprising the steps of: in the time domain, performing an operation to obtain only a set of received pilots; and sectionalizing or subdividing the set of received pilots into a plurality of sub-sections; whereby a refined channel estimation is obtained on a sub-sectional basis. | 09-25-2008 |
| 20080226007 | METHOD AND APPARATUS FOR POWER ESTIMATION FOR TDSOFDM IN TRANSMISSION - A method and apparatus for a receiver to estimate the received power for each transmitting BS. The power measure can be obtained by using some or all receiving antennas. | 09-18-2008 |
| 20080225997 | METHOD AND APPARATUS FOR SYNCHRONIZATION FOR MIMO TDS-OFDM SYSTEM - In a TDS-OFDM system, frequency offset estimate provided. A method for estimating a frequency offset comprising the step of correlating a known PN sequence with a received signal. | 09-18-2008 |
| 20080225978 | METHOD AND APPARATUS FOR SYNCHRONIZATION FOR MIMO TDS-OFDM SYSTEM - In an orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) wireless communication system where both a transmitter and a receiver include a plurality of antennas, a method comprising the step of: a receiver using at least one pseudo noise (PN) to correlate desired information relating to a received symbol. | 09-18-2008 |
| 20080225977 | METHOD AND APPARATUS FOR MIMO CHANNEL ESTIMATION IN A TDS-OFDM SYSTEM DOWNLINK USING A SUB-SPACE ALGORITHM IN THE FREQUENCY DOMAIN - In an orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) wireless communication system, a method is provided for channel estimation using a sub-space method suitable for computer implementation. The system has both a transmitter and a receiver including a plurality of antennas. The method comprising the step of: a receiver using at least one pseudo noise (PN) to correlate desired information relating to a received symbol; transforming the correlated information into frequency domain; and performing channel estimation using a sub-space method suitable for computer implementation. | 09-18-2008 |
| 20080225969 | METHOD AND APPARATUS FOR ADAPTIVE PN LENGTH FOR TDS-OFDM IN TRANSMISSION - In a TDS-OFDM system, a method for transmission is provided. The method comprises the step of: adjusting a PN sequence length, whereby a required performance is maintained. The adjusting step comprises increasing, decreasing, or keep unchanging the PN sequence length. | 09-18-2008 |
| 20080225968 | METHOD AND APPARATUS FOR MIMO CHANNEL ESTIMATION USING TDS-OFDM IN DOWNLINK TRANSMISSION IN THE FREQUENCY DOMAIN - In an orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) wireless communication system where both a transmitter and a receiver include a plurality of antennas, a method comprising the steps of: a receiver using at least one pseudo noise (PN) to associate desired information relating to a received symbol; and transforming the correlated information into frequency domain. | 09-18-2008 |
| 20080225967 | METHOD AND APPARATUS FOR MIMO CHANNEL ESTIMATION USING TDS-OFDM IN DOWNLINK TRANSMISSION IN THE TIME DOMAIN - In an orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) wireless communication system, a method is provided. In the OFDM MIMO wireless communication system, both a transmitter and a receiver include a plurality of antennas. The method comprising the step of: a receiver using at least one pseudo noise (PN) to correlate desired information relating to a received symbol; and performing channel estimation using the correlated information. | 09-18-2008 |
| 20080225694 | METHOD AND APPARATUS FOR ID IDENTIFICATION USING PN FOR TDS-OFDM IN TRANSMISSION - In an OFDM system having PN sequences as guard intervals, a method is used for synchronization. The method comprises the steps of: providing a plurality of base stations; providing a plurality of mobile stations; both the base stations and the mobile stations are adapted to transmit and receive signals associated with a parameter using the PN sequences for synchronization. | 09-18-2008 |
