|| List of recent Downlink-related patents
| Master reference for base station network interface sourced from distributed antenna system|
A distributed antenna system (das) includes: first base station network interface unit that receives first downlink signals from first external device and converts them into first downlink data stream; second base station network interface unit that receives second downlink signals from second external device and them into second downlink data stream; first remote antenna unit communicatively coupled to first base station network interface unit that receives at least one of first downlink data stream and first downlink signal derived from first downlink data stream. First remote antenna unit has first radio frequency converter configured to convert at least one of first downlink data stream and first downlink signal derived from first downlink data stream into first radio frequency band signal and first radio frequency antenna that transmits first radio frequency band signal to first subscriber unit.
| Coordinating distributed radio via remote units|
Provided herein is a dynamically coordination of a distribution of radio signals via distributed remote radio units, with respect to changing numbers and locations of user equipment. A distributing and combining unit combines uplink radio signals from the remote radio units and distributes downlink radio signals from the access unit according to dynamically changing specified criteria.
| Method and apparatus for voice conferencing|
A method, apparatus computer program product provide acoustical echo control for distributed voice conferencing including distributed voice conferencing that utilizes spatial audio processing. In the context of a method, a reference signal and one or more other reference signals may be received by a mobile terminal.
| Apparatus and method for measuring and using congestion in a wireless communication system|
A method and apparatus are for receiving a set of individual congestion reports, wherein each individual congestion report comprises a set of congestion values and an associated location. Each individual congestion report has been generated by one of a plurality of user devices operating in a wireless communication system and is based on at least one of a downlink congestion value, an uplink congestion value, and a core congestion value.
| Apparatus and method for dynamically altering a downlink mimo configuration|
A mobile wireless device may dynamically alter a downlink mimo function by switching it on and off, or switching between different downlink mimo configurations, such as 2×mimo and 4×mimo. Still further, a mobile device having greater than two antennas may dynamically select a subset of the antennas to be used to receive a mimo transmission, and further, enable a mobile device to request a subset of antennas at a base station to be used for the mimo transmission.
| Method for activating multiple streams transmission ue to transmit hs-dpcch and ue thereof|
The present document provides a method for a user equipment (ue) which activates multi-stream transmission to transmit a high speed dedicated physical control channel (hs-dpcch) and a ue thereof, wherein the method is applied in a multi-stream transmission system, and includes: after receiving high-speed physical downlink shared channel (hs-pdsch) subframes transmitted from primary and secondary serving cells, the ue which activates the multi-stream transmission transmitting a hs-dpcch carrying jointly encoded acknowledge/negative acknowledgement (ack/nack) and channel quality indicator (cqi) after a predetermined duration by taking a later received hs-pdsch subframe of the pair of paired hs-pdsch subframes as a reference, wherein the predetermined duration is determined according to a timing correlation by which the ue transmits the hs-dpcch subframe and correspondingly receives the hs-pdsch subframe, which is specified in the 3rd generation partnership project (3gpp) specification 25.211.. .
| Radio access network (ran) for peer-to-peer (p2p) communication|
A serving gateway (s-gw) in a radio access network (ran) server system for peer-to-peer (p2p) communication can include a p2p content manager. The p2p content manager can be configured for receiving p2p data content from other nodes in a p2p network, forwarding the p2p data content to other nodes in the p2p network, and transmitting the p2p data content to a mobile device associated with the s-gw in a downlink (dl) transmission.
| Transmission of data to or from a node of a mobile network|
For transmitting data between a node (100) of a mobile network and a further node (200), the further node sends downlink data packets to the node (100) of the mobile network. The downlink data packets carry a destination address corresponding to a user equipment (10) connected to the mobile network.
| Method and apparatus for transmitting and receiving uplink control information in radio access system|
A method and apparatus for transmitting and receiving uplink control information (uci) in a radio access system supporting an enhanced physical downlink control channel (e-pdcch) is disclosed. The method includes transmitting downlink control information (dci) including offset information for determining resources for transmitting a physical uplink control channel (pucch) via the e-pdcch, and receiving the uci using uplink resources according to a resource index value for transmitting the pucch.
| Method and base station for coordinating physical downlink control channel interference|
The present invention provides a method and a base station for coordinating physical downlink control channel interference, where, base stations of neighboring cells exchange pdcch state information or pdcch performance information, so that a victim cell can identify an aggressive cell according to the above information, and notify the aggressive cell of taking a measure to reduce effect of interference to a pdcch of the victim cell. Thereby the aggressive cell takes the measure to achieve pdcch interference coordination, and to reduce the effect of the interference from the aggressive cell to the pdcch of the victim cell.
| Method and apparatus for transmitting downlink control information for resouce allocation in a wireless communication system|
A method and apparatus for transmitting and receiving downlink control information (dci) in a wireless communication system. A method for transmitting dci by a base station includes generating the dci including at least one of a data format indicator for at least one transport block (tb), and a demodulation reference signal (dmrs) resource allocation indicator corresponding to the at least one tb; and sending the dci to a terminal.
| Radio communication apparatus, radio communication system, and radio communication method|
A radio communication apparatus to perform communication with another radio communication apparatus by using a plurality of pairs of a downlink frequency band and an uplink frequency band, the apparatus includes: a receiving unit configured to receive a control message by using a downlink frequency band of a first pair among downlink frequency bands of the pairs during a random access procedure to said another radio communication apparatus, the control message including identification information indicating use of an uplink frequency band of a second pair different from the first pair, the downlink frequency band of the first pair being monitored for control messages by the radio communication apparatus; and a control unit configured to control the radio communication apparatus to perform data communication with said another radio communication apparatus by using the uplink frequency band of the second pair indicated by the identification information included in the control message.. .
| Pucch resource allocation with enhanced pdcch|
Embodiments of the present disclosure include methods, apparatuses, and instructions for receiving at a user equipment (ue) of a third generation partnership project (3gpp) network an offset value selected from a plurality of offset values in downlink control information. The ue also receives one or more enhanced control channel elements (ecces) of an enhanced physical downlink control channel (epdcch).
| Method and apparatus for transmitting control information for interference measurement in a wireless communication system|
A method and apparatus for transmitting control information to a user equipment (ue) by an evolved node b (enb) for interference measurement in a wireless communication system are provided. The enb determines whether the ue can perform interference management for receiving a data signal transmitted from the enb based on information of an interference signal.
| Interface between low power node and macro cell to enable decoupled uplink and downlink communication|
Certain aspects provide a method for wireless communications with low powered, possible low cost devices, such as machine-type communications (mtc) devices. A method for wireless communications by a wireless node is provided.
| Methods and apparatus for conditional offload of one or more log-likelihood ratios (llrs) or decoded bits|
Techniques and apparatus are provided for conditional offload of one or more llrs or decoded bits. An exemplary electronic device (ed) method includes receiving a transmission of a physical downlink shared channel (pdsch) having a transport block (tb) comprising at least one code block (cb), performing a cyclic redundancy check (crc) of the at least one cb, in a memory external to a modem core of the ed, storing a subset of log-likelihood ratios (llrs) associated with the at least one cb if the at least one cb failed the crc or decoded bits associated with the at least one cb if the at least one cb passed the crc, wherein the subset is based on an llr range of the transmission relative to an llr range of one or more previous transmissions, and using the stored subset of llrs or decoded bits to process a re-transmission of the pdsch..
| Method for transmitting control information|
The present invention discloses a method for transmitting control information. Downlink control information is categorized into common control information and dedicated control information.
| Polling beacon|
Beacon-poll frames are transmitted from a station (sta) to a wireless ap in an opportunistic manner. In response to receiving a beacon-poll frame, the wireless ap transmits a unicast beacon frame to the sta, thereby eliminating the need for the sta to periodically wake up to receive broadcast beacon frames from the ap.
| Universal remote radio head|
A distributed base station radio system includes first channelized to broadband conversion unit that receives first downlink channelized data for first radio frequency band from first channelized radio frequency source; and first universal remote radio head communicatively coupled to first channelized to broadband conversion unit. First channelized to broadband conversion unit converts first downlink channelized data into a first downlink broadband signal.
| Radio communication system, radio base station apparatus, user terminal, and radio communication method|
According to the present invention, even when the ratio between uplink subframes and downlink subframes is changed in each component carrier in tdd carrier aggregation, it is still possible to prevent a decrease in capacity. With the radio communication method according to the present invention, a radio base station apparatus generates a downlink control channel signal containing downlink control information including carrier indicator field information, and transmits the downlink control channel signal to a user terminal, and the user terminal receives the downlink control channel signal, and executes signal processing with respect to the downlink signal in accordance with the downlink control information.
| Method and apparatus for transmitting control information in a wireless communication system|
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method in which a terminal performs communication in a tdd-based wireless communication system having a plurality of ccs aggregated therein, the method comprising: a step of performing an uplink transmission or a downlink reception in each subframe on a first cc according to a first ul-dl configuration; and a step of performing an uplink transmission or a downlink reception in each subframe on a second cc according to a second ul-dl configuration.
| Method and apparatus for transmitting control channel depending on ue capability in intra-cell carrier aggregation system|
A method and an apparatus for transmitting a control channel when cells have different duplex structures in an intra-cell carrier aggregation system are provided. The method of transmitting and/or receiving a control channel by an evolved node b (enb) in a wireless communication system includes receiving capability information of a user equipment (ue) from the ue, transmitting scheduling information to the ue, transmitting downlink data according to the transmitted scheduling information, and receiving an uplink control channel for the downlink data from the ue based on the capability information of the ue..
| Method and apparatus for coexistence of peer to peer communication with lte wwan communication on downlink|
A method, an apparatus, and a computer program product for wireless communication are provided. A ue for wireless communication determines resource elements, within at least one resource block in a downlink subframe, that carry reference signals from a base station.
| Expandable distributed core architectures having reserved interconnect bandwidths|
A network system for an expandable distributed core architecture (“dca”) includes multiple spine switches, multiple leaf switches coupled thereto, and a plurality of interconnections coupling each of the spine switches to each of the leaf switches. Servers, storage, and other system items and resources can be coupled to the leafs via downlinks and uplinks.
| Method and device for measuring channel quality|
A method and a device for measuring channel quality are provided. The method includes: receiving first signal characteristic information and second signal characteristic information sent by a network side, where the first signal characteristic information is used to indicate a first signal, and the second signal characteristic information is used to indicate a second signal; receiving a downlink signal sent by each node in multiple nodes, obtaining a downlink channel response and downlink interference of each node respectively according to the first signal and the second signal in the downlink signal sent by each node; obtaining downlink channel quality information of each node according to the downlink channel response and the downlink interference of each node; and reporting the downlink channel quality information of each node to the network side.
| Interference measurement method and apparatus for new carrier type|
An interference measurement resource (imr) allocation method and apparatus for allocating resources for efficient interference measurement in a downlink in a system supporting a new carrier type (nct) is provided. The interference measurement configuration method of a base station transmitting subframes including, or not including, cell-specific reference signals (crs) in a wireless communication system includes determining whether a terminal supports a new carrier type (nct) subframe, allocating, when the terminal supports the nct subframe, interference measurement resources (imr) to the terminal at resource elements (res) where other signals are not mapped in the subframe, transmitting information on the allocated imr to the terminal, and transmitting the subframe including the allocated imr to the terminal..
| Method for reporting downlink channel state and apparatus therefor|
A method for reporting a channel state to a base station (bs) supporting downlink (dl) multiple-input multiple-output (mimo) in a wireless communication system includes measuring a dl channel based on a dl signal received from the bs, and reporting an index of a codebook for precoding of the dl signal according to the measured dl channel, wherein the codebook for precoding includes an integrated codebook having a dual structure including a codebook for a wideband and a codebook for a subband, and wherein the integrated codebook is determined depending on an index i1 of the codebook for the wideband and an index i2 of the codebook for the subband, and a structure or type of a codebook selectable using the index i2 varies according to the index i1.. .
| Assigning dynamic gain factors to coordinate distributed radio units|
A way of optimizing communication by minimizing the momentary overall radiated energy under constraints in respect to coverage and maintenance of communication with the users, is provided herein. Channel parameters are estimated from downlink and/or uplink communications or from user equipment messages and desirable gain factors are derived from the minimization.
| Downhole electromagnetic and mud pulse telemetry apparatus|
A measurement-while-drilling (mwd) telemetry system comprises a downhole mwd telemetry tool comprising a mud pulse (mp) telemetry unit and an electromagnetic (em) telemetry unit. The mwd telemetry tool can be configured to transmit data in an em-only telemetry mode using only the em telemetry unit, in an mp-only mode using only the mp telemetry unit, or in a concurrent telemetry mode using both the em and mp telemetry units concurrently.
|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.. .