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7623582 |
Apparatus and method for estimating start of frame
Disclosed is an apparatus and method for estimating a start point of a frame in a wireless communication system. The method includes the steps of receiving a frame and estimating the start of the...
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7623566 |
Method and apparatus for demodulating signals processed in a transmit diversity mode
Demodulator architectures for processing a received signal in a wireless communications system. The demodulator includes a number of correlators coupled to a combiner. Each correlator typically...
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7623561 |
Channel characteristics estimation system, channel characteristics estimation method, communication apparatus, and communication method
Channel characteristics need to be estimated in a wireless communication system which performs frequency hopping. A transmission side aligns phase values of carriers of frequencies used for hopping...
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7620414 |
Wind-up power control method and apparatus in mobile communications system
A power control method in a mobile communication system, which includes changing an original step size for adjusting a target quality of service (QoS) of a downlink channel to a larger step size...
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7620094 |
Spread spectrum clock generator
Disclosed is a spread spectrum clock generator which includes: a first delay control type oscillator that variably controls an oscillation period at a control period interval according to a control...
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7620028 |
Multi-channel binding in data transmission
A system and method are described for binding together a plurality of wireless data communications channels, whereby an aggregate throughput improvement is realized. A master channel amongst the...
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7620005 |
Method and apparatus for code assignment in a spread spectrum wireless communication system
Method and apparatus for code assignments in a spread-spectrum wireless communication system incorporating a Large Area Synchronized-Code Division Multiple Access (LAS-CDMA) protocol. The method...
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7620002 |
Apparatus and method for controlling multiplex number in spatial domain
This invention provides a controller of multiplex number in spatial domain that collects from a plurality of radio communication apparatuses the number of terminals connected thereto and the...
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7616714 |
Process and device for the prediction of noise contained in a received signal
A device and method for predicting noise in a signal that is received by a digital receiver is provided. The device includes an autocorrelation function determination device and a noise predictor...
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7613158 |
Method of quadrature spreading
The invention provides a method of quadrature spreading suited for use in a software implementation of a code division multiple access communication (CDMA) system. The method includes providing for...
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7609749 |
Method and apparatus for generating non-recursive variable rate orthogonal spreading codes
A method for constructing and selecting non-recursive orthogonal variable spreading factor (OVSF) codes is provided. The method includes: defining a variable B=SF max /SF min , where SF max is a...
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7609676 |
Method for preventing reporting of duplicate pilots within a communication system
A method within a communication device ( 105 ) for preventing reporting of duplicate pilots within a communication system ( 100 ) is disclosed. The method includes communicating with one or more...
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7606294 |
Channel quality estimation method and receiving apparatus
Channel quality can be detected accurately in a wireless transmission system such as an HSDPA method. In the case of estimating a channel quality of a signal transmitted by a Code Division...
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7606292 |
Sub-sequence accumulation filter and method
A parallel correlator and method includes temporarily storing in a series of P sequence registers, each of length R 1 , serial bit-sequences of a code of length N=P*R 1 . In a first-level of...
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7599338 |
Peak power reduction method for wireless communication systems and corresponding transmitter
A peak power reduction method for wireless communication systems is proposed in which a constellation shaping is applied on input data symbols in order to reduce the peak power of the signal...
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7599321 |
Prioritization of connection identifiers for an uplink scheduler in a broadband wireless access communication system
An uplink access method in a mobile subscriber station of a broadband wireless access communication system prioritizes uplink bandwidth allocation according to QoS types of requested service. A...
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7599320 |
Enhanced-transport format combination power margin for uplink
A communications network ( 200 ) for enhanced uplink of High-Speed Uplink Packet Access (HSUPA) in 3G wireless communications includes a mobile transceiver unit ( 605 ). The mobile transceiver unit...
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7596170 |
Coherent detection without transmission preamble
A receiving system allows for the coherent detection of a spread-spectrum transmission at any point in time during the transmission, thereby avoiding the need to identify the start of the...
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7596113 |
Transmission scheduling for TDMA networks
A technique for scheduling transmissions for a plurality of transmitters in a TDMA network is described. The technique includes assigning guard time between each pair of successive transmitters,...
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7596111 |
Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes
A wireless communications system includes a space-based component (SBC) and an ancillary terrestrial component (ATC) configured to communicate with radioterminals using a common satellite service...
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7593452 |
Despreading spread spectrum data
A method for de-spreading spread data includes receiving a data stream by multiple access communication where the received data stream is spread using a pseudo-noise (PN) code; multiplying a first...
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7593450 |
Dynamic frequency hopping
A frequency hopping communications system is disclosed. A server is adapted to have one or more radio head interface modules and a call processing software module. The call processing software...
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7593383 |
Uplink transmitter in a random phase multiple access communication system
A method for communicating through a multiple access communication interface includes receiving a first signal from a first tag, where the first signal is spread using a predetermined pseudo-noise...
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7590083 |
Wireless packet data distributed communications system
A two-way satellite communications system includes an Earth station communicating with a plurality of remote terminals using a network access protocol that facilitates low power consumption by the...
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7586992 |
Apparatus and method for channel estimation and cyclic prefix reconstruction in an OFDM-STBC mobile communication system
An apparatus and method for channel estimation and CP reconstruction in an OFDM-STBC mobile communication system are provided. An ISI canceller cancels ISI signal components from first and second...
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7586972 |
Code division multiple access enhanced capacity system
A code division multiple access (CDMA) communication system using spread spectrum signaling over a communication bandwidth uses two different signal spectra generated using two different respective...
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7586866 |
Radio communication apparatus and radio transmission method
In order to improve reception performance, while reducing the arithmetic amount of a receiver apparatus in a multi-carrier CDMA system, different weightings are performed for the respective spread...
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7586865 |
Allocating power when simultaneously sending multiple messages
A base station receives multiple first signals from multiple mobile terminals over a first radio channel (e.g., a RACH, a CPCH, etc.). Multiple acknowledgement signals are generated for...
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7583638 |
Device and method for processing a digital data signal in a CDMA radio transmitter
A device for processing a digital data signal in a CDMA radio transmitter includes a channelization device, a spectral shaping device and a frequency correction device. The channelization device...
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7583633 |
Hard handoff target generation in a multi-frequency CDMA mobile network
A CDMA network dynamically generates hard handoff (HHO) target sets to support mobile station HHO. Dynamically identifying CDMA channels or cells as targets for HHO eliminates the need for...
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7583627 |
Low latency radio basedband interface protocol
A low latency radio/baseband interface protocol is provided. In one embodiment thereof, 8b/10b encoding is used, which has distinct control characters and data characters. Control characters are...
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7580428 |
3GPP WCDMA receiver using pipelined apparatus and method for performing cell searches
A pipelined cell search apparatus having a primary search stage, a secondary stage and a Gold code stage. The primary stage receives a primary synchronization channel (P-SCH) signal, detects a...
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7580400 |
Apparatus and method for generating preamble signal for cell identification in an orthogonal frequency division multiplexing system
Disclosed are an apparatus and a method for generating a preamble signal for cell identification in an OFDM mobile communication system. The method includes the steps of generating a Walsh code...
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7577115 |
Apparatus and method for acquiring code group in asynchronous W-CDMA system
Provided are an apparatus and a method for acquiring a code group that is used for a mobile communication terminal to acquire a scrambling code for identification of a base station. The present...
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7570684 |
Method for joint time synchronization and frequency offset estimation in OFDM system and apparatus of the same
Embodiments of the present invention include a method for performing joint time synchronization and carrier frequency offset estimation in a wireless communication system, comprising steps of: on a...
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7570576 |
Detection and mitigation of temporary (bursts) impairments in channels using SCDMA
Systems and methods are disclosed for detecting and mitigating temporary high-level impairments, in a communications channel, and subsequently, mitigating the deleterious effects of the dynamic...
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7564837 |
Recording medium recording a network shutdown control program, and network shutdown device
A recording medium recording a network shutdown control program permitting suitable preventive measures to be taken. A detector monitors each network segment to be managed, and on detecting a...
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7564828 |
Power-efficient signaling for asymmetric multi-carrier communications
A method and system for reducing transmission power when signaling in groups. For a group of identically-sized signals a majority value can be determined. The majority value may be transmitted as...
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7558255 |
Method of switching modes of uplink transmission in a wireless communication system
A hybrid multi-mode mobile station makes a decision either to encode and modulate a new user data packet using the same OFDMA or pre-coded CDMA mode used for the last retransmission of a previous...
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7555077 |
Method for path-searcher scheduling
A method for adaptively scheduling activation of a path-searcher for a mobile terminal operative in a telecommunication system. The mobile terminal is capable of receiving multi-path signals...
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7555034 |
Apparatus and method for detecting timing error based on cyclic correlation
Provided is an apparatus and method for detecting timing errors based on characteristics of cyclic correlation. The apparatus and method can detect the timing errors of many users by using the...
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7555029 |
Method for decoding a plurality of standard radio waves and standard radio wave receiver
A method and a standard radio wave receiver for receiving a plurality of standard radio waves respectively having signal configurations in accordance with respective specifications which define...
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7554937 |
Adaptive packet transmission method for transmitting packets in multibeam satellite communication system
Provided is an adaptive packet transmission method in a cellular mobile communication system using a multibeam satellite. The method includes the steps of: a) being periodically reported, from...
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7552232 |
Speculative method and system for rapid data communications
A system and method that utilizes a dedicated transmission queue to enable expedited transmission of data messages to adaptive “nearest neighbor” nodes within a cluster. Packet descriptors are...
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7551665 |
Ultra wideband receiver architecture using high order Gaussian pulses and method of operation
An ultra wideband (UWB) receiver system operable to process a high order Gaussian pulse includes an integrator group, a correlator circuit and a comparator circuit. The integrator group includes an...
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7551582 |
System and method for optimizing walsh code assignments
A wireless communication system is disclosed, including a network and a plurality of base stations coupled to the network, wherein each of the base stations are adapted to transmit only a Pilot...
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7548521 |
System for dynamically shifting beacons in distributed wireless network and method thereof
A system for dynamically shifting beacons in a distributed wireless network and a method thereof are disclosed. In a medium access control for a wireless personal area network based on a mobile...
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7535864 |
Radio communication terminal apparatus and radio communication base station apparatus
A CDMA radio receiving apparatus which receives a slot which has a long code group identification short code at a point where a long code is masked. The apparatus includes a detector that detects a...
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7532685 |
Methods of controlling tracker bandwidth in wireless communication systems
A method of tracking on-time errors may include producing first and second metrics from accumulated signal samples of a received data frame, and calculating a sum of, and a difference between, the...
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7525944 |
Data delivery in conjunction with a hybrid automatic retransmission mechanism in CDMA communication systems
Techniques for delivering data recovered by a HARQ entity in proper order to higher layers in a CDMA system. In a method, packets are received from the HARQ entity by the re-ordering entity and...
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