|| List of recent Communication System-related patents
| Integrated communication system and method thereof|
An integrated communication system includes a communication integration device, and a user terminal. The communication integration device includes at least two communication bridging units and a communication integration module, wherein each of the communication bridging units is configured to link to an external communication system, the communication integration module can selectively activate one of the communication bridging units, and thereby integrate and link to the external communication systems linked with the communication bridging units.
| In-vehicle communication system|
The present invention is directed to solve a problem that time is required for a process related to verification of a public key certificate of a message sender. An in-vehicle device mounted on a vehicle has a memory for holding information of a device which failed in verification of a public key certificate.
| Distributed measurement arrangement for an embedded automotive acquisition device with tcp acceleration|
The invention refers to a method and a communication system for transmitting in either direction data between any two devices in a client layer and/or a transport layer of a communication system. The data transmission is performed according to the transport control protocol, referred to hereinafter as tcp.
| Vehicle-mounted communication system|
A communication network in which a plurality of terminals are connected to a common bus is a vehicle-mounted communication system which connects a plurality of ecus though the bus, transmits messages at predetermined communication intervals between the ecus, and receives the transmitted messages. The messages transmitted/received between the ecus through a can communication line are divided into a plurality of groups such as a first group, a second group to an nth group according to the type of message information.
| Textile machine, especially spinning machine or winding machine, with a control and communication system|
A textile machine, especially a spinning machine or winding machine, has numerous identical workstations arranged beside one another along a longitudinal side, with numerous maintenance devices movable along the workstations for servicing the workstations, and with a control and communication system. The maintenance devices are connected to a bus topology component through a maintenance device bus line, in which case at least some of the bus topology components are connected to the control and communication system with a common bus line.
| System and method for detecting occlusions in a medication infusion system using pulsewise pressure signals|
A medical fluid communication system is disclosed comprising a pump controller and a fluid detector. The fluid detector detects characteristics of the fluid and provides fluid measurements to the pump controller, which detects if the fluid is flowing in the medication delivery system.
| Medical information management system|
A medical device communication system is described. The system includes a plurality of medical devices, a message listener programmed to wirelessly receive a plurality of messages from the plurality of medical devices, a storage device in communication with the message listener for storing the messages, a message distribution device for delivering the messages to a plurality of locations including a system database, an analytics database, and an integration engine.
| Apparatus and method for selecting processing speed of processor and wireless network|
An apparatus and method for selecting a processor clock speed and a wireless network are disclosed. The method for selecting a processing speed of a processor and/or a wireless network to be connected in a user equipment (ue) in a wireless communication system includes detecting states of a processor-related queue and a network module-related queue, and selecting a processing speed of the processor-related queue and/or a wireless network to be connected, based on the detected states of the processor-related queue and the network module-related queue and power consumptions of a processor and a network module.
| Multi-mode base station and operating method and wireless communication system thereof|
A multi-mode base station and an operating method and a wireless communication system thereof are provided. The multi-mode base station includes: at least two protocol processing modules, vested in at least two modes respectively, and adapted to process data and/or signaling of the mode according to the protocol corresponding to the mode; and an interface processing module, adapted to distinguish the mode of the data and/or the signaling while receiving the data and/or the signaling, and distribute the data and/or the signaling to the protocol processing module corresponding to the mode.
| Method and system for estimation of mobile station velocity in a cellular system based on geographical data|
A system and method for estimating velocity of a mobile station in a wireless communication system using time-frequency signal processing and a geographical database. The geographical database is used for prediction of ray trajectory and ray power to provide an estimate of propagation delay associated with database points..
| Format adaptation of a control channel for discontinuous data transmission|
In a radio communication system (100, 200) using a channel divided into a plurality of time slots, a control signal is transmitted in each time slot and a data signal is transmitted intermittently using a subset of the time slots. The control signal includes a portion which is a predetermined signal, such as a pilot signal, and one or more bits constituting a power control command.
| Scheduling method and apparatus for use in a communication system|
A method and apparatus for selecting a scheduling group of base stations is provided for use in a communication system. The method includes receiving, at the control apparatus, received signal power information for a signal received by a terminal; receiving cell edge terminal information on the terminal located at a cell edge; determining a combination of base stations that maximize throughput based on the received signal power information and the cell edge terminal information; and mapping the determined combination of the base stations to the integral scheduler..
| Cellular wide-area radio communication system with relay-enhanced cells|
In a cellular wide-area radio communications system, comprising a plurality of base stations, a plurality of relay stations, and a plurality of mobile stations, wherein each of the relay stations is associated with at least one of the base stations, each of the mobile stations is associated with at least one of the base stations or one of the relay stations, wireless data transmissions between mobile stations and base stations take place either as single-hop data transmissions between the mobile stations and their associated base stations, or as multi-hop data transmissions between the mobile stations and their associated relay stations and a data transmission between the relay stations and the base stations associated with the relay stations, wherein an average number of multi-hop data transmissions in the radio communications system equals at least an average number of single-hop data transmissions.. .
| Inter-rat reselection in mobile communication systems|
A method includes, in a mobile communication terminal that is camped on a serving cell, evaluating signals of one or more neighbor cells, and permitting the terminal to switch to a neighbor cell when a signal of the neighbor cell meets a reselection criterion for at least a predefined reselection interval. Acquisition of one or more configuration parameters of the neighbor cell is initiated at least partly in parallel with the reselection interval of the neighbor cell.
| Distributed access network discovery and selection function and method of operating the same|
A system and method is provided for performing an access network discovery and selection function in a communication system. An access network discovery and selection function (“andsf”) server is operable with a third generation partnership project (“3gpp”) radio access network and a wireless fidelity (“wi-fi”) radio access network coupled to a core network.
| Restoration of mobile terminating cs services in case of failure of a core network entity in a mobile communication system|
Providing that an alternative cn entity is contacted instead of said original cn entity, and that said alternative cn entity is forced to accept said paging request even if said ue is unknown to said alternative cn entity.. .
| Method and network node in a wireless communication system|
Method in a network node (110) comprised in a wireless communication system (100), for adjusting size of a cell (115) served by the network node (110). The method comprises estimating (304) a parameter value, related to a number of unsuccessful network connection attempts made by one or more user equipment (120) during a measurement period, and/or a number of dropped user equipment connections to the network node (110) during the measurement period.
| Inter-device communication authorization and data sniffing in wireless communication systems|
Systems and methods for user equipment (ue) for inter-device communication authorization and data sniffing in wireless communication systems are provided. A ue may communicate directly with another ue over a direct inter-device communication link when they are located in proximity.
| Mobile station apparatus, base station apparatus, and mobile communication system|
A mobile station (ms) includes a first circuitry configured to: select a cell by a cell selection procedure started by the ms, in a case where a radio link failure is detected, wherein said selecting based is on: a criteria of the cell selection procedure; information, used for indicating access restrictions of the ms, the information broadcasted on each cells; and an access class of the ms, wherein the access class being either: a first access class applied for an emergency call, or other access classes applied for other calls; and treat, in a case where the radio link failure is detected upon communication of the first access class, the selected cell as an appropriate cell even in a case where the selected cell is a cell belonging to a first base station not registered in the list; and a second circuitry configured to access the appropriate cell.. .
| Wireless communication system, receiver|
In a wireless communication system including a transmitter and a receiver, the receiver includes a signal-to-noise ratio (snr) calculation unit which calculates an snr of a baseband signal of a signal received from the transmitter, and an indication information generation unit which generates transmission strength indication information indicating transmit power of the transmitter based on a history of the snr calculated by the snr calculation unit, and the transmitter includes a transmission unit which controls the transmit power based on the snr.. .
| Proxy communication system and proxy communication system controlling method in ban environment|
Disclosed is a method of controlling a communication system including one or more sensors attached to a user, a wireless communication apparatus, and a coordinator. The method of controlling the communication system includes receiving a request for a proxy authority for a proxy between the one or more sensors and the coordinator from the wireless communication apparatus and assigning the proxy authority to the wireless communication apparatus by the coordinator; generating a user identifier corresponding to the user by the wireless communication apparatus; searching for the one or more sensors attached to the user and establishing pairings with the found one or more sensors by the wireless communication apparatus; making a request for association information for an association between the coordinator and the sensors from the found one or more sensors and receiving the association information by the wireless communication apparatus; making a request for an association proxy for an association between the found one or more sensors and the coordinator from the coordinator and receiving the association proxy in response to the request by the wireless communication apparatus; and establishing an association with the found one or more sensors, making a request for data, and receiving the data in response to the request for the data by the coordinator..
| Light powered communication systems and methods of using the same|
A light powered communications system. The light powered communications system includes an audio control center having at least one optical source and at least one optical receiver.
| Optical module used in optical communication systems, method of updating firmware of optical module used in optical communication systems, and trouble tracing system|
An optical module includes: an optical device driven by a driving voltage; an arithmetic processing chip including an arithmetic processing circuit that operates according to predetermined firmware and generates an electrical control signal indicating a magnitude of the driving voltage; a voltage generating unit provided outside the arithmetic processing chip, and including an input terminal that receives the control signal from the arithmetic processing chip and an output terminal that provides the driving voltage of a magnitude corresponding to the control signal to the optical device; and a voltage holding unit that holds an output voltage from the output terminal of the voltage generating unit at a constant voltage regardless of an operation state of the arithmetic processing circuit, when the firmware is updated.. .
| Lens standoff and protection for optical communication systems|
An opto-electronic system includes a substrate, an opto-electronic chip mounted on the substrate, a frame, and a lens device retained in the frame. A frame mounting portion of the frame is in contact with an upper surface of the opto-electronic chip.
| Interactive property communication system|
Disclosed herein, among other things, are apparatus and methods for interactive property communication. In various embodiments, an interactive property communication system includes two or more property communication nodes (pcns) each adapted for coupling to an electrical service.
| System and method for in-context collaboration|
A communication system for communication sessions, such as voice calls, conference calls, and instant messaging chat sessions, includes a plurality of communication devices and one or more servers configured to provide data communication among the plurality of communication devices. Data contexts having chronological user-generated content are established and maintained between different communication devices.
| Apparatus and method for estimating channel in wireless communication system|
An apparatus for iteratively estimating a channel in a receiver of a wireless communication system is provided. The apparatus includes a channel estimator configured to estimate a first channel value by using a pilot symbol included in a received signal, a demodulator configured to demodulate the received signal by using the first channel value, a decoding unit configured to decode the received signal demodulated by the demodulator, a feedback determining unit configured to determine whether to iteratively estimate the channel, and a feedback device configured to feed back an input value of the decoding unit when the feedback determining unit determines to iteratively estimate the channel, wherein when the feedback determining unit determines to iteratively estimate the channel, the channel estimator estimates a second channel value by using at least one of the pilot symbol included in the received signal and a data symbol received from the feedback device..
| Arbitrary sample rate conversion for communication systems|
Disclosed is a communication modulator with sample rate conversion. The modulator comprises a symbol mapping module configured to map an input bitstream to a symbol sequence; a pre-distortion module configured to multiply the symbol sequence by a discrete frequency response to produce a pre-distorted symbol sequence; a modulation module configured to modulate the pre-distorted symbol sequence to a time-domain baseband sample sequence; a sample rate conversion module configured to convert the sample rate of the baseband sample sequence to a different sample rate to produce a sample-rate-converted baseband sample sequence; and an up-conversion module configured to up-convert the sample-rate-converted baseband sample sequence to an intermediate frequency signal.
| Data transmission method for a mobile communication system|
This invention provides a mobile communication system which expanded the operation limitation of the heretofore adopted mobile communication systems and improved the spectrum efficiency greatly. A data transmission method for use in the mobile communication system of the present invention includes means for channel pluralizing by which to expand the shannon limit and means for interference reduction by which to expand the interference limit.
| Method and apparatus for correcting errors in a multiple subcarriers communication system using multiple antennas|
A method for correcting errors in a multiple antenna system based on a plurality of sub-carriers and a transmitting/receiving apparatus supporting the same are disclosed. The method includes determining a phase shift based precoding matrix phase shifted at a predetermined phase angle, initially transmitting each sub-carrier symbol to a receiver in a packet unit by using the phase shift based precoding matrix, reconstructing the phase shift based precoding matrix to reduce a spatial multiplexing rate if a negative reception acknowledgement (nack) is received from the receiver, and retransmitting the initially transmitted sub-carrier symbol by using the reconstructed phase shift based precoding matrix or by changing the phase shift based precoding matrix using offset information fed back from the receiver or random offset information..
| Codebook adaptation in mimo communication systems using multilevel codebooks|
A method includes holding in a receiver a definition of a codebook including precoding matrices, and a definition of multiple sub-codebooks including different respective subsets of the precoding matrices in the codebook. A sub-codebook is selected in coordination with a transmitter, for use in a given time interval or frequency range.
| Apparatus and method for transmitting and receiving packet in a broadcasting and communication system|
A method of transmitting a complex content packet in a broadcasting and communication system is provided. The method includes creating an forward error correction (fec) source block by using at least one mmt processing unit (mpu) included in at least one mpeg media transport (mmt) asset, and transmitting the fec source block, wherein the fec source block is generated so that a boundary of the at least one mpu and a boundary of the fec source block do not deviate..
| Systems and methods for signaling and performing temporal level switching in scalable video coding|
Media communication systems and methods for media encoded using scalable coding with temporal scalability are provided. Transmitting endpoints include switching information in their transmitted media to indicate if temporal level switching at a decoder can occur at any frame of the transmitted encoded media..
| Method and apparatus for detecting and analyzing noise and other events affecting a communication system|
The present invention generally relates to a method and apparatus for effectively detecting and characterizing noise and other events affecting a communications system such as dsl. According to certain aspects, the invention includes a noise analysis engine that is embedded in customer premises equipment that classifies noise sources according to their specific characteristics and tracks each noise source in a dynamic manner, in such a way as to provide visibility to the changing noise environment within the customer premises and/or report this environment to a remote entity..
| Retransmissions in a communication system using almost blank subframes|
A method and apparatus for controlling retransmissions of subframes is disclosed. In the method the type of a received subframe is determined.
| Methods and arrangements in a radio communication system|
The present invention relates to uplink transmissions and scheduling of resources for uplink transmissions in connection with packet switched communication. A radio communication network schedules time slots for transmission of bursts of a first radio block on at least two different uplink packet data channels and transmits an uplink state flag, associated with a mobile station for which the first radio block was scheduled, on a first downlink packet data channel representing a first subperiod within a basic uplink period.
| Method for terminal to control timing advance group in a wireless communication system, and device for same|
The present application discloses a method in which a terminal controls a timing group in a wireless communication system. Specifically, the method is characterised by comprising: a step for measuring the difference between the downlink timing of a specific serving cell and a reference cell; and a step for transmitting, via a network, a message requesting the change of a timing group, if the specific serving cell belongs to the same timing group as the reference cell and the measured downlink timing difference is at least a threshold value, or if the specific serving cell belongs to a different timing group to the reference cell and the measured downlink timing difference is less than the threshold value..
| Method of transmitting control information and device for same|
The present invention relates to a wireless communication system. In more detail, a method for performing harq (hybrid automatic repeat request) retransmission by a communication device in a wireless communication system, the method comprising: initially transmitting a data block to a base station (bs); attempting pdcch (physical downlink control channel detection) in a predetermined time interval including a plurality of subframes after transmission of an uplink channel signal; and retransmitting the data block when a pdcch signal indicating retransmission of the data block is detected in the predetermined time interval, wherein reception of a phich (physical hybrid arq indicator channel) corresponding to initial transmission of the data block is skipped..
| Maintaining communication between mobile terminal and network in mobile communication system|
According to one embodiment, a method for maintaining a communication between a mobile terminal and a network in a mobile communication system includes: determining whether a state of the mobile terminal is in an unsynchronized state while maintaining a radio resource control (rrc) connected state with the network; performing a random access channel (rach) procedure for a synchronized state if it is determined that the state of the mobile terminal is in the unsynchronized state while maintaining the rrc connected state with the network; and after performing the rach procedure, transitioning from the synchronized state to the unsynchronized state with the network while maintaining the rrc connected state with the network when a timer expires.. .
| Method and apparatus for transmitting and receiving different signal types in communication systems|
A method and apparatus are provided for transmitting a reference signal (rs) by a user equipment (ue) in a wireless communication system. The method includes transmitting a demodulation reference signal (dm rs) and information data in a sub-frame; and transmitting a sounding reference signal (srs) in a last symbol in another sub-frame.
| Method and apparatus for performing network reentry in wireless communication system|
A method for performing network reentry by a machine to machine (m2m) device in a wireless communication system is provided. In the method, the m2m device receives information associated with an uplink resource for transmitting a ranging request message from a base station and transmits the ranging request message to the base station based on the received information associated with the uplink resource.
| Mobile communication system, radio base station controller, and relocation method|
Radio base stations connect by radio lines with radio terminals in cells that make up each radio base station and relay data communication realized by the radio terminals on bearers on radio lines. Base station controllers record correspondence information of the data flow of data communication with the radio terminals and the bearers on the radio lines and, by referring to the correspondence information, effects termination of data communication with the radio terminals.
| Channel estimating apparatus, channel estimating method, base station, and communication system|
A channel estimating apparatus includes a receiver that receives reference signal groups that are respectively transmitted from wireless communications units and that each include a reference signal that is allocated a common channel resource allocated to a reference signal in another reference signal group; a first estimating unit that based on a reference signal that is in a first reference signal group among the received reference signal groups and that is allocated a unique channel resource not allocated to a reference signal in another reference signal group, estimates a reference signal that is in the first reference signal group and allocated the common channel resource; and a second estimating unit that based on the reference signal estimated by the first estimating unit, estimates a reference signal that is in a second reference signal group among the received reference signal groups and that is allocated the common channel resource.. .
| Method and apparatus of accessing channel in wireless communication system|
A method and apparatus of accessing a channel including receiving, by a device, an operation element for setting up or switching at least one channel from an access point (ap), the operation element including a channel type field indicating whether the at least one channel is either a single channel or multiple channels, and including two channel center frequency segment fields indicating a channel center frequency of a primary and a secondary channel if the channel type field indicates that the channel is multiple channels, determining whether the primary channel is idle during a first interval, determining whether the secondary channel is idle during a second interval if the primary channel is idle, and transmitting data by using the primary and secondary channels to the ap or at least one station in a basic service set (bss) if the primary and secondary channel are idle.. .
| Base station apparatus, mobile station apparatus, and transmission method|
A base station able to maintain backward compatibility with an lte mobile station while minimizing the amount of increase in uplink scheduling information reception and demodulation/decoding processing in independent uplink/downlink cell data transmission. A wireless communication system includes a cell #1, a cell #2, and an lte-a mobile station, and supports independent uplink/downlink cell data transmission.
| Wireless communication system, base station apparatus, mobile station apparatus, and wireless communication method|
A mobile station apparatus (1) determines an uplink carrier component to which a physical downlink control channel instructing to start random access procedure corresponds. Provided is a wireless communication system in which a base station apparatus (3) and a mobile station apparatus (1) communicate with each other using a plurality of component carriers, wherein the base station apparatus (3) includes a random access controller (1012) that preliminarily allocates random access resources corresponding to a specific downlink component carrier, by means of which the mobile station apparatus (1) can start a random access communication, and a transmission processor (111) that transmits control information instructing to start the random access procedure, and wherein the mobile station apparatus (1) includes a random access processor (2012) that, upon receipt of the control information instructing to start the random access procedure, starts the random access procedure by means of the random access resource corresponding to a specific downlink component carrier preliminarily allocated by the base station apparatus (3)..
| Mobile station apparatus, management method in a mobile station apparatus, processing section, base station apparatus and communication system|
A communication system that includes at least a terminal apparatus and a base station apparatus. The terminal apparatus communicates with a base station apparatus by carrier aggregation using a plurality of serving cells, wherein each serving cell of the plurality of serving cells has a different frequency.
| Control channel for wireless communication|
A scheme for transmission of control channel information in a compact form intended to support sps (semi-persistent scheduling) in a wireless communication system. As applied to lte, the scheme is to indicate a pre-configured ue-specific resource allocation in a downlink control information (dci) format containing information for multiple ues in the same pdcch.
| Mobile communication system and communication control method|
A communication control method is provided which improves a wireless resource usage rate, is available to recognize a variation in wireless resource state in advance, and is available to control communication in accordance with the variation in a mobile communication system in which an mbms and an hsdpa coexist and the same wireless resource is shared and used. A mac-m transmits information related to a wireless resource used on an mbms transport channel at a transmission timing of a base station to a mac-hs before the transmission timing.
| Method and unit for efficient reporting of scheduling information in a wireless telecommunications system|
A method in a wireless communication system for reporting buffer information includes selecting a format for a buffer report based on a number of radio bearer groups, k, for which data is available for transmission by a user equipment. The buffer report indicates a respective buffer fill level for one or more radio bearer groups associated with the user equipment.
| Method and apparatus for transmitting control information in wireless communication system|
The present invention relates to a wireless communication system. More particularly, in a method for receiving a downlink signal in a wireless communication system and an apparatus for same, the present invention relates to a method and an apparatus for same, comprising the steps of: receiving a subframe including a plurality of ofdm symbols; monitoring a plurality of search spaces which are configured on the subframe, so as to receive a pdcch which is indicated to a terminal; and performing an operation in accordance with a pdcch which is detected when the pdcch that is indicated to the terminal is detected, wherein each of the search spaces is configured on a first resource region and/or a second resource region, in accordance with a predetermined condition, and the first resource region and the second resource region are separated with a specific ofdm symbol as a boundary on a time domain..
| Method for allocating a control channel and apparatus therefor|
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method in which a terminal performs a process for determining a control channel allocation for a control channel, and to an apparatus for the method.
| Method for resource allocation and transmission in wireless communication system, and transmitting device thereof, receiving device corresponding thereto|
The present invention relates to a method for resource allocation in a wireless communication system, a device thereof, and a system thereof.. .
| Method for transmitting and receiving control information in a wireless communication system, and apparatus for same|
Disclosed are a method for transmitting and receiving control information in a wireless communication system, and an apparatus for same. A method for transmitting control information by a base station in a wireless communication system according to the present invention comprises the steps of: performing a precoding process by applying different precoding matrix indices to control information for each terminal among predetermined precoding matrices; and transmitting, to each terminal, the precoded control information to which different precoding matrix indices are applied for each terminal, wherein said control information is multiplexed and transmitted via a plurality of antennas..
| Method for transmitting downlink control channel in a mobile communications system and a method for mapping the control channel to physical resource using block interleaver in a mobile communications system|
A method for transmitting a downlink control channel in a mobile communication system and a method for mapping the control channel to physical resources using a block interleaver are provided. In order to transmit a downlink control channel in a mobile communication system, information bits are modulated to generate one or more modulation symbols according to a specific modulation scheme, the modulation symbols are interleaved using a block interleaver, and the interleaved modulated symbols are mapped to resource elements allocated for transmission of at least one control channel in a subframe, thereby transmitting the at least one control channel..
| Method of transmitting reference signal in wireless communication system|
A method of transmitting a reference signal in a wireless communication system includes generating a frequency-domain reference signal by performing discrete fourier transform (dft) on a time-domain reference signal, generating a transmit signal by performing inverse fast fourier transform (ifft) on the frequency-domain reference signal and transmitting the transmit signal.. .
| Apparatus and method for controlling inter-cell interference in wireless communication system|
Performing carrier sensing based activation competition in the interference control period, and scheduling user equipments served by the bs if the bs wins the carrier sensing based activation competition, wherein the carrier sensing based activation competition is based on a bs-specific back-off value related to a bs-specific weight.. .
| Communication system and method of data transmission for a medium access control layer|
Communication system and method of data communication are provided. The method of data communication for a mac layer includes initiating an access attempt; transmitting, by a mobile station, a probe to a base station (bs), wherein the probe includes header information and data frames; decoding the header information and the data frames; generating, by the bs, a sack message; and transmitting the sack message to the ms..
| Apparatus and method for transmitting/receiving multimedia data delivery characteristics information in multimedia communication system|
A method for transmitting multimedia data delivery characteristics information by a multimedia data transmission apparatus in a multimedia communication system is provided. The method includes transmitting, to a multimedia data reception apparatus, an element indicating whether multimedia data delivery characteristics information denoting information related to a quality of service (qos) for multimedia data is included, and the multimedia data delivery characteristics information if the element indicates that the multimedia data delivery characteristics information is included..
| Communication system with flexible repeat-response mechanism and method of operation thereof|
A communication system includes: a message communication module configured to communicate a preceding data before a repeat request; a metric module, coupled to the message communication module, configured to determine a repeat metric associated with the repeat request for re-communicating the preceding data or a portion therein; and wherein the message communication module is further configured to communicate a repeat data including a repeat portion based on the repeat metric for re-communicating the preceding data or a portion therein for communicating with a device.. .
| Method and arrangement in a telecommunication system|
There is provided a method of operating a communication system, the communication system comprising a user equipment and a receiver, the method in the system comprising generating a random access transmission in a user equipment and transmitting the random access transmission to the receiver in the communication system, the random access transmission including a preamble; receiving the random access transmission from the user equipment at the receiver; processing the random access transmission in the frequency domain to detect the preamble. In preferred embodiments of the invention, the preamble has a cyclic prefix, or is preceded by a plurality of zero-valued symbols..
| Method and apparatus for adaptive peer to peer communication selection in wireless communication system|
A method for operating a base station (bs) in a wireless communication system capable of supporting a peer-to-peer (p2p) communication is provided. The method includes receiving at least one response message from at least one mobile station (ms) that has received a request message from a first ms and determining whether to allow the first ms to performs the p2p communication with a second ms based on the at least one response message..
| Facilitating synchronization between a base station and a user equipment|
Methods and apparatus are provided for facilitating synchronization between a base station (bs) and a user equipment (ue) in a mobile communication system. The ue receives a synchronization signal originated by the bs.
| Method for qos guarantees in a multilayer structure|
A method in which a user equipment processes data in a wireless mobile communication system is provided. The method includes the steps of receiving a first data block from an upper layer, transferring a second data block including the first data block to a lower layer at a particular protocol layer, discarding the first and second data blocks present in the particular protocol layer if a certain period of time has passed, and transferring information associated with the discard of the second data block to the lower layer..
| Mobile communication system, base station apparatus and mobile station apparatus|
A base station apparatus adapted to inform a mobile station apparatus of a signature not reserved as a dedicated signature in case of causing the mobile station apparatus to perform a random access by using a randomly selected signature.. .
| Communication method, base station, and management apparatus|
A communication method performed in a communication system including a base station and a plurality of terminals, the communication method including: transmitting, by the base station, a first signal specifying a representative terminal of an aggregation group to which member terminals of the plurality of terminals belongs, each of the member terminals on which common application is installed in common, and relaying, by the representative terminal, communications associated with the common application between a server apparatus and one or more non-representative terminals other than the representative terminal of the member terminals, the server apparatus providing service for the common application.. .
| Satellite communication system, leo satellite relaying communications between a geo satellite and terrestrial stations, the uplinks and downlinks using the same frequency band and time-division multiplexing|
A payload for a repeater satellite of a communication system. The repeater satellite being placed into drift orbit above the surface of a celestial body.
| Method and apparatus for transmitting service interest indication message in wireless communication system|
Provided are a method and an apparatus for transmitting a multimedia broadcast/multicast service (mbms) interest indication message in a wireless communication system. A user equipment (ue) receives from a first base station system information for an mbms which is broadcasted, and transmits the mbms interest indication message to the first base station when the user equipment performs a handover from a second base station, which does not broadcast the system information for the mbms, to the first base station..
| Method for transmitting control information and apparatus therefor|
The present invention relates to a wireless communication system. In more detail, the present invention relates to a method and device for transmitting uplink control information in a wireless communication system that supports carrier merging and operates in tdd, and the method comprises the following steps: receiving at least one or more than one pdcch and more than one pdsch from a plurality of downlink sub frames according to a ul-dl configuration: determining a bit number of reception response information on the at least one of more than one pdcch and more than one pdsch by using a value indicated by a predetermined 2-bit field in a dci format for ul scheduling; and transmitting the reception response information through pusch corresponding to the dic format..
| Node in a wireless communication system, the node having different functional modes|
The present invention relates to a node (1, 1′) in a wireless communication system, the node (1, 1′) comprising at least one transceiver unit (2; 2a), a first antenna function (3, 3′) and a second antenna function (4, 4′). The antenna functions comprise at least a corresponding first antenna function first port connection (7, 7′) and second antenna function first port connection (8, 8′).
| Method and system for long-range adaptive mobile beam-forming ad-hoc communication system with integrated positioning|
Method and system for provided a long range, high capacity ad-hoc mobile communication network where a narrow antenna beam formed by a plurality of antenna elements, radio transceivers and digital spatial signal processing is used to provide a high accuracy positioning system integrated into the communication system. The relative positions and directive orientation of all the units in the network is done by mutual exchange of positioning data as an element in the communication protocol in the network..
| Uplink resource allocation to control intercell interference in a wireless communication system|
Embodiments of the present invention exploit the reciprocity of radio channels in tdd, and longer-term correlation between average uplink and downlink path losses in fdd wireless communication systems to enable distributed schedulers in an enhanced uplink system to allocate uplink transmission resources while preemptively managing intercell interference levels. Each cell's base station transmits a downlink reference signal at a known transmission power level.
| Method and apparatus for seamless handover operation in a wireless communication system|
A method and apparatus for improving a mobile problem caused by a narrow handover region in a boundary region between virtual cells constructed by a plurality of small base stations are provided. A plurality of virtual cells (vcs) include a plurality of distributed base stations (dbss) whose vcs cooperatively communicate with each other.
| Apparatus and method for transmitting and receiving channel state information of downlink channel in mobile communication system|
A method for sending a channel state information (csi) report for a downlink (dl) channel by a user equipment (ue) in a mobile communication system is provided. The method includes obtaining, from an evolved node b (enb), csi report setting information including information about a transmission cycle and a transmission time for a csi report, and discontinuous reception (drx) setting information including information about an active time period in which signal transmission/reception is available in a drx mode, determining whether the ue operates in the drx mode, and if the ue is determined to operate in the drx mode, adjusting the transmission time taking into account the csi report setting information and the active time period, and sending the csi report at the adjusted transmission time..
| Method and apparatus for uplink power control in an orthogonal frequency division multiple access communication system|
A communication system minimizes inter-cell interference and handover holes by providing for a user equipment (ue) to monitor downlink signals from a serving, boundary enodeb and one or more neighbor enodebs, determine a signal quality metric (sqm) for each monitored signal to produce an sqm associated with each enodeb, and determine a maximum uplink transmit power level (pmax) for each enodeb. Based on the determined sqms and pmaxs, the ue determines a enodeb of the one or more neighbor enodebs with a best sqm and, in response to determining that the neighbor enodeb of the one or more neighbor enodebs with a best sqm is a high power enodeb, determines a difference between the sqm associated with the high power enodeb and the sqm associated with the boundary enodeb.
| Information processing apparatus, communication system, information processing method, and program|
There is provided an information processing apparatus including an acquiring unit that acquires communication quality of wireless communication at a location where a wireless communication apparatus exists, and a control unit that controls on/off of another data communication function other than a data communication function to which a high priority is set, among data communication functions included by the wireless communication apparatus, based on the acquired communication quality.. .
| User equipment, base station, communication control method, and radio communication system|
A user equipment includes radio communication unit that performs radio communication with a base station over a communication channel formed by aggregating a plurality of component carriers. The user equipment has a measurement unit that measures a channel quality of the communication channel, and a controller that creates a measurement report using a result of the measurement and sends the measurement report to the base station.