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7039029 |
Device and method for gating transmission in a CDMA mobile communication system
A method for determining a gating rate in a base station for a CDMA communication system is disclosed. The method comprises transmitting information for assigning a dedicated control channel and a...
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7035232 |
Spread-spectrum communication method and apparatus
The communication period of spread spectrum data is divided into a plurality of portions, and an adjustment period for receiving the spread spectrum data is provided between one data-communication...
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7035244 |
Method for synchronization of a CDMA-signal
A method for synchronization of an input-chip-sequence (x(ν)) of a CDMA-signal with a Pilot-Chip-Sequence (pn(ν)) having the method steps of: dividing the Pilot-Chip-Sequence (pn(ν)) into...
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7035247 |
Link transmission control with common time reference
This invention specifies how control information is inserted in the flow of data units on a channel between two common time reference (CTR) driven switches in order to delineate time frames,...
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7035246 |
Maintaining a global time reference among a group of networked devices
Synchronization is maintained among a plurality of network devices having local clocks that participate in a network. A first packet is broadcast from a first network device to other network...
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7031295 |
System and method for minimizing guard time in a time division duplex communication system
Disclosed is a system and method for optimizing capacity in a multi-user time division duplex (“TDD”) communication system such as a broadband wireless radio frequency communication system....
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7031736 |
Method and apparatus of header compression for broadcast services in radio telecommunication system
A method and apparatus for packet-data header decompression, particularly advantageous for use in connection with broadcast and multicast messages being transported through a radio...
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7031277 |
Method for performing USTS handover and USTS mode switching in a mobile communication system
Disclosed is a handover controlling method in an RNC connected to a first Node B and a second Node B in a mobile communication system where a USTS service occurs between the first Node B and a UE...
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7027827 |
Method and apparatus for channel sharing between multiple communication systems
Remote units within a first communication system ( 121 ) utilizes frequencies (channels) from a second communication system ( 120 ) when placing a call. When a first remote unit ( 106 ) wants to...
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7027429 |
Method and apparatus for time and frequency synchronization of OFDM communication systems
A method and apparatus for joint time and frequency synchronization for orthogonal frequency division multiplexing (OFDM) systems. A multitone pilot signal is sent in a designated OFDM symbol...
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7027444 |
Apparatus and method for generating a preamble sequence in a wireless communication system
Disclosed is an apparatus for creating an aperiodic recursive multiplex (ARM) code having a predetermined length by receiving a first sequence having a given length. The apparatus outputs a third...
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7024215 |
Methods and apparatuses for measuring frequencies of basestations in cellular networks using mobile GPS receivers
Methods and systems for frequency synchronizing base stations in a cellular communication system. In one aspect of the invention, a method to measure a frequency related to a base station of a...
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7023835 |
Synchronization of timing advance and deviation
A system and method for reducing the latency from timing deviation (TD) measurement to time advance (TA) adjustment. The invention uses a deterministic procedure to coordinate time advance (TA)...
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7016443 |
Synchronization method and system for clock signal sources, in particular in packet transmission communication systems
The invention relates to a method for synchronization of clock sources in a communications system, in particular a radio communications system, having a large number of devices (PSTN, MSC, RNM,...
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7016310 |
Deriving control parameters for telecommunications in-and-out-of-synchronization detection
In accordance with the present invention, the control parameters for an in-and-out-of-synchronization detection algorithm ( 102 ) for a radio link set (set of combined radio links) are derived by a...
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7013157 |
Method for multicast delivery with designated acknowledgment
A packet format for multicast messages which designates a single receiver to send an acknowledgment to the multicast message. The designated receiver responds to the multicast message with an...
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7006509 |
Method and system for graceful slowlink deletion and subsequent fast link addition in an IMA group
A method and system for graceful slowlink deletion and subsequent fast link addition in an inverse multiplexing over asynchronous transfer mode (IMA) group are disclosed in which data is received...
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7002948 |
Mobile communication system and method of controlling synchronization between base stations
A mobile communication system has a plurality of base stations which are located at appropriate positions within a predetermined area and conduct radio communication with a mobile communication...
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7002936 |
Distributed soft handoff among IP-based base stations
A technique for assigning an address (“shadow address”) to a mobile station that is compatible with the layer- 2 address on the wireline network which serves the mobile station. The shadow...
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6999446 |
Adaptive, multi-rate waveform and frame structure for a synchronous, DS-CDMA system
A method is disclosed for operating a wireless communications system, such as a DS-CDMA communications system, by transmitting a waveform that includes a plurality of repeating frames each having x...
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6993009 |
Method and apparatus for deriving uplink timing from asynchronous traffic across multiple transport streams
A communication apparatus that shares precise return channel uplink timing information includes a common symbol timing reference and one or more control stations that each transmit independent...
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6993357 |
Mobile radio communication terminal
In a mobile radio communication terminal includes a feeding controller 7 with a feeding control table. In the feeding control table 7 is stored the on/off state of the power to each circuit in...
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6990093 |
Method of transmitting synchronized channel in radio transmitter
The invention relates to a method of transmitting a synchronized channel in a radio transmitter and to a radio transmitter. The method comprises transmitting normal radio bursts on a normal channel...
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6983160 |
Base site and method for GPS-based regional time synchronization
To address the need for an apparatus and method of economically synchronizing base sites ( 110–113 ) in wireless communication systems, the present invention provides a GPS-based solution for...
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6980536 |
Roaming of mobile parts in at least partially asynchronous wireless telecommunications networks, especially DECT networks
In order to qualitatively improve roaming of mobile parts (MT, RPP, DIPS) in at least partially asynchronous, wireless telecommunication networks (TKN) with telecommunication systems (TKS 1 . . ....
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6977919 |
Method and apparatus for efficient bandwidth utilization in subscriber unit initialization and synchronization in a time-synchronized communication system
A bandwidth efficient subscriber unit initialization and synchronization method and apparatus is described. The inventive subscriber unit initialization and synchronization method and apparatus...
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6975877 |
System and method for synchronizing clock dividers in a wireless network
A wireless network includes a plurality of base stations that provide a wireless communication capability for a plurality of mobile stations. Each base station includes a local clock unit with a...
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6975618 |
Receiver and correlator used to determine position of wireless device
A system for identifying the position of a wireless device and transmitting that position back to the wireless device, the system comprising a plurality of receiver/correlators, each...
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6967945 |
Method and system of communications using a pulse transmission protocol
Disclosed is a method and system of communications in a network using a protocol of transmission of pulses between a master station and one or more user stations. The pulse response of the master...
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6968209 |
Method and apparatus for synchronizing databases in portable communication devices
A checksum is calculated on a database stored in a SIM card when changes are made to a database stored therein. This checksum can be stored in a mobile phone, e.g., with the change log. When...
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6965586 |
Initial synchronization method in DS-CDMA inter-base station asynchronous cellular scheme
An initial synchronization method in a DS-CDMA inter-base station asynchronous cellular scheme of transmitting a spreading code sequence, includes: a first stage that detects correlation power...
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6961568 |
Wireless communication method, wireless communication system, and wireless communication apparatus
A wireless communication system that forms a personal area network and that includes a control station and a communication apparatus. The control station and the communication apparatus perform a...
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6961353 |
Radio transmission method and radio transmission apparatus
To provide a radio transmission method and a radio transmission apparatus capable of performing a highly-efficient radio transmission depending on the number of communicating stations, a...
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6959013 |
Communication network
A transmitter for transmitting an intermittent sequence of messages to maintain synchronization between the transmitter and a receiver. The transmitter includes control apparatus which provides...
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6956842 |
Multiplexing method and multiplexing device, and data signal transmission method and data signal transmission device
An effective data multiplexing method wherein an error correction ability is exerted at the maximum so that data transmission quality is improved and a data transmitting method in which an...
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6954439 |
Synchronization of terminals in a radio link system
The objective of the invention is to increase the potential hop density of single frequency TDD radio links by allowing a set of closely located terminals to use a single channel. This is possible...
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6950423 |
Packet transmission method, packet transmission device, radio frame transmission method, mobile communication method, mobile communication system, and exchange
When packet sending and receiving apparatus 21 sets a connection, timing control apparatus 22 generates a timing information Tf as the packet is dispersed equivalently. Timing control apparatus...
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6950414 |
Cable carrying communications data and timing data to radio heads
A method and apparatus for providing timing information to radio heads in a wireless communications system. One or more radio heads are connected to a central unit by a respective cable. This cable...
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6947402 |
User equipment for code group synchronization
A user equipment (UE) is capable of receiving and transmitting communication signals in a time division duplex using code division multiple access format. The UE receives a primary code...
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6947765 |
Method for transmitting data between data processing means and a radio communication network, module and mobile terminal for implementing same
A data transmission module for transmitting data between a radio communication network that transmits data at a specified rate and data processing means includes network interface radio means for...
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6944188 |
Synchronizing clocks across a communication link
Apparatus, system and method for synchronizing one or more clocks across a communication link. A slave clock may be synchronized to a master clock by means of a synchronization signal sent from the...
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6944172 |
System and method for time-based scheduling
Provided are a system and method for time-based scheduling in a communications environment. In one example, the method includes assigning at least one token to each of multiple active queues during...
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6944119 |
OFDM receiving apparatus, OFDM transmission apparatus and OFDM communication method
Synchronization symbol insertion section 102: inserts a synchronization symbol into a signal digital-modulated by modulation section 101 . 0 symbol insertion section 103 inserts a 0 symbol...
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6940838 |
Wireless telephone network optimization
A wireless network can be easily optimized utilizing processes according to the present invention. A simulation environment allows a network engineer to vary parameters (e.g., antenna height, tilt,...
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6941151 |
Transmitting apparatus, receiving apparatus, and communication system for formatting data
A transmitting apparatus, a receiving apparatus, and a communication system are provided that allow a reduction in a frame loss due to interference caused by use of the same channel. A transmitting...
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6931455 |
System and method for communications between a CORBA object request broker and a non-CORBA object request broker
A system for communication between a non-CORBA object request broker and a CORBA object request broker is provided that includes a non-CORBA object request broker ( 112 ) executing on a client...
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6928061 |
Transmission-scheduling coordination among collocated internet radios
A method for collocated nodes communicating over a first interface to agree on a conflict-free transmission schedule among themselves, which they can then use to collaborate with neighbors accessed...
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6922406 |
Method of synchronizing base stations
Method of synchronizing base stations in a mobile radio telecommunication system, characterized in that a first base station transmits a synchronisation sequence having a first sequence followed by...
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6920154 |
Architectures for a modularized data optimization engine and methods therefor
A data optimization engine disposed inline with a first communication channel and a second communication channel. The data optimization engine comprises a transmit interface circuit configured to...
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6920113 |
Transport of iscochronous and bursty data on a sonet ring
A method and apparatus for using SONET technology to efficiently carry both data and voice traffic by Add/Drop Multiplexing of both isochronous traffic, such as voice and video, and non-isochronous...
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