|| List of recent Downlink-related patents
| Self calibration of downlink transmit power|
Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a total received signal strength from transmitting nodes at the receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node.
| Radio communication system, radio base station apparatus, machine communication terminal and radio communication method|
The present invention is designed to make it possible to reduce the cost required for a machine communication terminal when the network domain of the machine communication system employs an lte system. With the radio communication method of the present invention, a radio base station apparatus allocates downlink signals to a machine communication terminal in a predetermined cycle and transmits the allocated downlink signals to the machine communication terminal, and the machine communication terminal receives downlink signals from the radio base station apparatus in the predetermined cycle and demodulates the downlink signals received in the predetermined cycle..
| Method and apparatus of primary cell indication for enhanced control channel demodulation|
Method and apparatus of primary cell indication for enhanced control channel demodulation method and apparatus are disclosed. Control information receiving method in a multi-distributed node system includes demodulating a first cell identification (id) based on a synchronization signal (ss), demodulating information indicating a second cell id based on a radio resource control (rrc) message and demodulating enhanced physical downlink control channel (e-pdcch) based on the second cell id, accordingly, it may be possible to reduce complexity that occurs when the optimal prediction motion vector is induced and to enhance efficiency..
| Method and mobile node for determining a point in time for transmissions|
Method and mobile node in a wireless communication network for determining when to transmit a signal. The mobile node operates in a wireless communication network comprising a first cell and a second cell where the mobile node is synchronized to the first cell.
| Bundling scheduling method in wireless access system and apparatus therefor|
The present invention relates to a bundling scheduling method in a wireless access system and an apparatus therefor. Specifically, the bundling scheduling method in the wireless access system comprises the steps of: transmitting the bundled downlink control information including a plurality of downlink control information through one physical downlink control channel (pdcch) to a terminal; transmitting the downlink data, to the terminal, through a plurality of physical downlink shared channels (pdsch) scheduled by the bundled downlink control information; and receiving acknowledgement/negative-acknowledgement (ack/nack) information for the plurality of pdschs from the terminal..
| Method and device for data transmission|
Disclosed are a method and a device for data transmission, which relate to the field of wireless communication technologies, and are used for decreasing signaling overhead of a system in this application, an enb delivers a scheduling radio network temporary identifier rnti to a terminal; the enb schedules uplink resources and/or downlink resources for the terminal through a physical downlink control channel pdcch scrambled by using the scheduling rnti, receives uplink data sent by the terminal on the scheduled uplink resources, and sends downlink data to the terminal on the scheduled downlink resources. The terminal monitors the pdcch scrambled by using the scheduling rnti, and sends the uplink data and/or receives the downlink data by using the resources scheduled by the monitored pdcch.
| Method and device for sending and receiving downlink control information|
Disclosed are a method and a device for sending and receiving downlink control information. The method comprises: discrete user-specific search space is determined, control channel resources corresponding to the discrete user-specific search spaces being distributed discretely; and the downlink control information on the discrete user-specific search space is sent.
| Uplink transmission method and apparatus in carrier aggregation system|
The invention discloses an uplink transmission method and apparatus in a carrier aggregation system and relates to the field of radio communications so as to address the issue of how to perform uplink transmission in a secondary cell when a base station configures a user equipment additionally with the secondary cell. In the invention, a user equipment selects, under a preset reference carrier selection rule, one of downlink carriers corresponding to cells having already eatablished downlink synchronization with a base station as a timing reference downlink carrier used by a secondary cell after the base station configures the user equipment additionally with the secondary cell; and the user equipment performs uplink transmission in the secondary cell according to downlink timing of the timing reference downlink carrier.
| Method and apparatus for allocating resources in wireless communication system|
A method for a base station to transmit a demodulation reference signal (dmrs) for a control channel in a wireless communication system is disclosed. The method includes transmitting a dmrs for an enhanced-physical downlink control channel (e-pdcch) to a user equipment, wherein a dmrs sequence corresponding to the transmitted dmrs is formed using an initial sequence calculated based on a virtual cell id..
| Operating method for wireless communication system using improved carrier aggregation technology and device therefor|
The present invention relates to a random access processing method, a processing method for processing different time-division setups, a method for reporting downlink timing differences, and a method for transmitting a sounding reference signal, when carrier aggregation technology is used in a wireless communication system. Through the present invention, a user can use improved carrier integration technology, and communicate without an erroneous operation..
| Base station and method of calculating correction value|
In a base station, a downlink radio resource and an uplink radio resource to be used for transmission of a known signal from a communication terminal are associated for null steering to be performed based on the known signal. A correction value calculating unit calculates a first correction value used to correct a downlink quality value obtained by a communication terminal.
| Precoding control indication feedback method, user equipment, and base station|
Embodiments of the present invention disclose a precoding control indication feedback method, a user equipment, and a base station. Channel capacity values corresponding to precoding matrices in a precoding matrix set are calculated.
| Method and apparatus for signaling the release of a persistent resource|
A method and apparatus for signaling the release of a persistent resource in long term evolution (lte) are disclosed. An indication of the release of a downlink (dl) persistent resource is received by a wireless transmit receive unit (wtru) from an evolved node-b (enb) via a physical downlink control channel (pdcch).
| Communication system, mobile station device, and communication method|
A mobile station device includes an information acquisition unit that is configured to and/or programmed to acquire information, which specifies a system bandwidth and a carrier frequency of a second downlink carrier component different from a first downlink carrier component, transmitted using rrc signaling via a physical downlink shared channel within the first downlink carrier component and a communication unit that is configured to communicate with the base station device by aggregate use of both the first downlink carrier component and the second downlink carrier component, where the first downlink carrier component and the second downlink carrier component have different carrier frequencies and each of the first downlink carrier component and the second downlink carrier component has its own downlink system bandwidth.. .
| Communication method, mobile station apparatus, base station apparatus and mobile communication system|
A mobile station (ms) decodes at least one pdcch on at least a first downlink component carrier (dcc). The ms transmits harq control information for a pdsch transmission indicated by a detection of a pdcch and using a first pucch resource and a first pucch format, where the first pucch and the first pucch format are used for the transmission of the harq control information for the pdsch transmission on the second dcc, the pdsch transmission on the second dcc being indicated by the detection of the pdcch.
| Method for transmitting ack/nack signal in wireless communication system applied carrier aggregation and apparatus therefor|
A method and apparatus for transmitting ack/nack (acknowledgement/negative-ack) state information in a wireless communication system. The method includes receiving, by a user equipment (ue), multiple transmission blocks through multiple downlink component carriers from a base station (bs); and transmitting, by the ue, multiple transmission block ack/nack state information through a single uplink component carrier to the bs.
| Search space reconfiguration for enhanced-pdcch|
The present invention relates to rapid search space reconfiguration for e-pdcch (enhanced physical downlink control channel) in wireless communication system to avoid flashlight interferences from neighbouring cells and to allocate the e-pdcch on the best physical resource blocks (prbs) in frequency fluctuation dominated scenarios. To this end, a method for providing low-latency feedback on a reconfiguration attempt of a search space for an enhanced-pdcch, and a corresponding apparatus are provided.
| Method and apparatus for transceiving data in a wireless communication system which supports a plurality of component carriers|
The present disclosure relates to an operating method of a terminal for transceiving data to/from a base station in a system that supports a plurality of component carriers. The method includes receiving, from the base station, downlink control information (dci) masked using a terminal identifier (cell-radio network temporary identifier (c-rnti)) or a semi-persistent scheduling terminal identifier (sps c-rnti) through a physical downlink control channel (pdcch); determining a component carrier for transceiving data to/from the base station; and transceiving data to/from the base station through the determined component carrier.
| Method, device and system for transmitting enhanced downlink control channel|
The present invention discloses a method, a device and a system for transmitting an enhanced downlink control channel, which belong to the communications field. The method for sending an enhanced downlink control channel includes: presetting a multiplexing unit, where the multiplexing unit includes at least one resource block pair, and the at least one resource block pair includes e-pdcch resources and dm rs resources, and the e-pdcch resources include multiple control channel elements; sending at least one e-pdcch corresponding to at least one ue in at least one control channel element of the multiplexing unit, and sending the dm rs corresponding to the at least one ue.
| Method and apparatus for initiating communications on a shared channel in a mobile communications system|
A method and apparatus for initiating communications on a shared channel in a mobile communication system are provided. A user equipment transmits an uplink signal for requesting communications on the shared channel to a node b, and waits for a delay duration without monitoring a downlink after transmitting the uplink signal.
| Method for receiving downlink control information in wireless access system and terminal therefor|
The present invention relates to a method for receiving downlink control information (dci) in a wireless access system and a terminal therefor. More specifically, the method comprises the steps of: performing blind decoding according to the transmission mode set for a terminal in a search space assigned to the terminal; and receiving dci through a detected physical downlink control channel (pdcch) via blind decoding, wherein the transmission mode is set to any one of a plurality of transmission modes, which have limitations dependent on the performance of the terminal, by a base station that supports a plurality of transmission modes..
| Communication units and methods for relay-assisted uplink communication|
A relay device for supporting uplink communication between a terminal device and a base station is described. The relay device comprises at least one receiver arranged to receive a downlink message from the base station; a control processor, operably coupled to the at least one receiver and arranged to determine from the downlink message information identifying an uplink control resource to be used by the terminal device; and a transmitter, operably coupled to the control processor and arranged to relay received periodic uplink control channel messages on the identified uplink control resource from the terminal device to the base station..
| Communication units and methods for relay-assisted uplink communication|
A relay device is described for supporting communications between a terminal device and a base station, the relay device comprises: at least one receiver; and a control processor, operably coupled to the at least one receiver and arranged to: monitor a downlink communication from the base station to the terminal device; determine therefrom at least one uplink resource to be used by the terminal device; configure the at least one receiver to receive the at least one uplink resource; receive an uplink message on the at least one uplink resource; determine therefrom uplink control information used by the terminal device; modify the uplink message on the at least one uplink resource; and relay the uplink message to the base station.. .
| Multicasting within a wireless communications system|
An access network determines to transmit multicast messages on a downlink shared channel. The access network receives a multicast registration message and a traffic channel request from at least one access terminal.
| Methods and apparatus for supporting multiple connections|
Systems and methodologies are described that facilitate supporting multiple connections associated with a wireless terminal. Notifications may be provided to a primary base station upon establishment and/or removal of connections between the wireless terminal and secondary base station(s).
| Link verification in a wireless network|
A method and apparatus for verifying the status of a wireless connection between a wireless device and an access point are disclosed. If the number of missed beacon frames exceeds a threshold value, the wireless device transmits a link verification request to the access point.
| Downlink-uplink configuration determination|
Uplink and downlink traffic for a plurality of user equipments ues in a cell is differentially weighted according to traffic type, and that weighted traffic total is used to select one uplink-downlink configuration for a radio frame from among a>1 possible uplink-downlink configurations. The weighting may use a priority factor or traffic class identifier that corresponds to the traffic type.
| Electronic device, method and computer-readable medium|
An electronic device, a method, and a computer-readable medium. The electronic device includes a circuitry configured to receive a radio communication signal for another device, configured to determine, based on the radio communication signal, one or more features that can reflect the difference between an uplink transmission mode and a downlink transmission mode, and configured to judge whether the radio communication signal is for the uplink transmission or the downlink transmission according to the one or more features..
| Multi-carrier integration apparatus for distributed antenna system|
A band combiner unit includes a plurality of carrier modules (cms) each configured to be connected to a base transceiver station (bts) or bi-directional amplifier (bda) for corresponding ones of the carriers, wherein each of the cms is configured to transmit downlink signals from the corresponding bts/bda, adjust the downlink signals, and transmit the downlink signals to a first combiner, and to receive uplink signals from a second combiner, adjust the uplink signals, and transmit the uplink signals to the corresponding bts/bda, the first combiner configured to combine the downlink signals from the cms, and transmit the combined downlink signals to a distributed antenna system (das), the second combiner configured to split a combined uplink signal from a das, and transmit the split uplink signals to corresponding ones of the cms, and a band combiner unit controller for monitoring and controlling the cms.. .
|Systems and methods for managing non-integrated cpdlc systems from a first cpdlc system|
In one embodiment, a method for implementing a non-integrated cpdlc solution is provided. The method includes monitoring a datalink router for messages from a first cpdlc application in a first one or more execution partitions, wherein the first one or more execution partitions are configured to implement a first cpdlc application and wherein messages from the first cpdlc application and a second cpdlc application in a second one or more execution partitions use the datalink router to interface with one or more radio transceivers.
|System and method for hybrid location in an lte network|
A system and method for estimating a location of a wireless device receiving signals from plural nodes of a communications network. A wireless device may be directed to transmit a first signal having one or more predetermined parameters.
|Subscriber-side device and optical transmission system|
An object of the present invention is to provide a subscriber-side device, which can generate accurate time information and can synchronize a time with other device even if a power supply of a portion that receives a downlink signal is in an off state, and to provide an optical transmission system including the same. The subscriber-side device of the present invention corrects and outputs free-running time information, which is generated based on a free-running clock signal, by a time correction value generated based on a frequency deviation between a synchronization clock signal and the free-running clock signal.
|Remote radio unit (rru) and base band unit (bbu)|
A remote radio unit (rru) in a radio base station system can include a cyclic prefix (cp) module having a cp adder for downlink channel processing includes a cp remover for uplink channel processing. The rru can be configured to communicate with a base band unit (bbu) via a physical communication link and communicate with a wireless mobile device via an air interface.
|Very long frame in a machine to machine communication network|
The present invention relates to communication via a series of bidirectional frames. A communication device is configured to communicate according to a protocol in which data is communicated via a series of frames, and every frame comprises: a downlink portion for transmissions by the communication device, said downlink portion comprising a control portion; and an uplink portion for transmissions to the communication device; and the duration of each frame is greater than one second..
|Systems and methods for small cell uplink interference mitigation|
Systems and methods for facilitating the mitigation of interference in the uplink of a small cell caused by macrocell user equipment in the case where the macrocell cannot identify the interfering macrocell user equipment because the user equipment cannot detect and report the small cell's downlink due to the small cell's uplink/downlink coverage imbalance. In an embodiment, the smell cell provides the macrocell with a notification of the interference, the configuration information about its physical random access channel (prach), and a plurality of unique preambles and transmission times for non-contention-based transmissions on the small cells prach.
|Wireless communication system, mobile station device, base station device, wireless communication method, and integrated circuit|
Efficient transmission and reception of a random access response message is performed between a base station device and a mobile station device. When a random access preamble is transmitted from a primary cell, the mobile station device monitors a first control channel of the primary cell.
|Method and apparatus for random accessing in wireless communication system|
The present invention relates to a method for performing a random access, and more specifically, to a method for a terminal performing a random access in a wireless communication system, and comprises the steps of: receiving from a base station a random access preamble index and an indicator related to the random access; and transmitting to the base station a random access preamble that corresponds to the index, wherein the indicator related to the random access indicates what is a radio network temporary identifier (rnti), which is used for transmitting a physical downlink control channel that indicates a response to the random access.. .
|Method for wireless communication between a user device and a base station in a wireless communication system supporting uplink and downlink multi carriers, and a device for implementing the method|
A method for wireless communication supporting uplink and downlink multi carriers includes performing initial access through one of at least two downlink component carriers among multiple downlink component carriers including the at least two downlink component carriers through which the user equipment is allowed to perform the initial access; and transmitting via an uplink component carrier allocated to the user equipment by using a carrier identifier, wherein the carrier identifier is applied to the uplink component carrier and is obtained from the downlink component carrier through which the initial access is performed, and wherein the system pre-defines one-to-one correspondence between multiple downlink component carriers and multiple uplink component carriers, and wherein the downlink component carrier through which the initial access is performed and the uplink component carriers allocated to the user equipment do not match the one-to-one correspondence pre-defined by the system.. .
|Method and apparatus for information transmission in wireless communication system|
According to one embodiment, a method for transmitting, by a user equipment (ue), information in a wireless communication system includes: determining a first information sequence based on a first cyclically shifted base sequence and a first orthogonal sequence by using a first physical uplink control channel (pucch) resource for a first antenna, wherein the first pucch resource is obtained based on a channel control element (cce) index related to a physical downlink control channel (pdcch) and a parameter configured by a higher layer; determining a second information sequence based on a second cyclically shifted base sequence and a second orthogonal sequence by using a second pucch resource for a second antenna, wherein the second pucch resource is obtained by adding an offset to the first pucch resource; transmitting the first information sequence via the first antenna; and transmitting the second information sequence via the second antenna.. .
|Terminal device and transmission method|
A terminal device capable of providing a method for determining pucch resources used for notification of response signals indicating error detection results for downlink line data, when arq is applied during communications using an uplink unit band and a plurality of downlink unit bands associated to the uplink unit band and when downlink data allocations are instructed using an epdcch. In this device, a control unit (208) determines a/n resources on the basis of whether a channel used for transmitting downlink control information (dci) is a pdcch or an epdcch..
|Method for calculating channel quality information, method for feeding back channel quality information and apparatus|
Embodiments of the present invention provide methods for calculating and feeding back channel quality information and apparatus. The method for calculating includes: calculating, by a terminal, channel quality information (cqi) of a non-backward compatible carrier, according to usable pdsch resources in the non-backward compatible carrier; wherein resources occupied by a downlink control channel are not assumed into the usable pdsch resources in the non-backward compatible carrier, the number of the resources occupied by the downlink control channel being less than the number of usable resources configured by a base station for a downlink control channel in a backward compatible carrier.
|Multicast service using unicast subframe|
A system and method for multicast servicing in a unicast subframe is disclosed. The method using a transmission station comprises the operation of setting up a multicast service on each of a plurality of mobile devices in a multicast group using a multicast cell radio network temporary identifier (mc-rnti) with a common cell identifier (cid).
|Terminal apparatus, communication system, communication method, and base station apparatus|
In a communication system in which a base station apparatus and a terminal apparatus communicate with each other, a base station apparatus, a terminal apparatus, and a communication system with which the base station apparatus and the terminal apparatus can efficiently communicate with each other are provided. The terminal apparatus that communicates with the base station apparatus includes a radio resource control section 6011 that sets a first uplink power control-related parameter configuration and a second uplink power control-related parameter configuration in accordance with information included in a radio resource control (rrc) signal, a reception unit 605 that determines a type of downlink control information (dci) format, a transmission power control section 6015 that sets uplink transmission power on the basis of the first uplink power control-related parameter configuration or the second uplink power control-related parameter configuration, and a transmission unit 607 that transmits an uplink signal with the set uplink transmission power..
|Apparatus and method for transmitting ack/nack in tdd system|
The present invention provides a method and apparatus for transmitting an ack/nack in a tdd system. A component carrier (cc) configuration for a user equipment (ue) and a transmission mode of each cc are received.
|Calibration of a downlink transmit path of a base station|
Methods, systems, and devices are described for calibrating a transmit path of a base station. A calibration symbol of a subframe may be generated for transmission on a downlink channel.