|| List of recent Downlink-related patents
|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.
|Determinative segmentation resegmentation and padding in radio link control (rlc) service data units (sdu)|
A transmission entity (e.g., user equipment (ue)) is expected to reduce the segmentation of radio link control (rlc) service data units (sdus) while also minimizing padding. Signaling or provisioning of a constraint value such as a maximum padding amount or minimum segmentation size is employed in a determinative way in the ue to balance these objectives.
|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..
|Paging of a user equipment (ue) within a wireless communications system|
A user equipment (ue) determines to activate a data session. The ue configures a data session activation request message to include an indication of an association with communication sessions of a given type (e.g., delay-sensitive communication sessions), and then transmits the data session activation request message to an access network.
|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)..
|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.
|Method and apparatus for transmitting control signaling|
The present invention discloses a method and an apparatus for transmitting control signaling. The method includes: determining that a physical downlink shared channel pdsch transmission scheme for a non-backward compatible component carrier is a user equipment-specific reference signal ue rs-based non-precoding matrix indicator non-pmi feedback transmission scheme or a ue rs-based up to 8 layer transmission scheme; and sending downlink control information dci to a ue, where the dci is used to indicate the determined pdsch transmission scheme.
|Method for transceiving data in wireless access system and terminal therefor|
The present invention relates to a method for transmitting and receiving data in a wireless access system and a terminal therefor. The method comprises the steps of: receiving an instruction message which instructs transmission of uplink resource allocation information via a physical downlink shared channel (pdsch) from a base station; determining whether the resource allocation information is a first downlink resource allocation information based on the instruction message, upon receiving resource allocation information set to a flag value that indicates uplink resource allocation information, from the base station via a physical downlink control channel (pdcch); receiving uplink resource allocation information via the pdsch according to the first downlink resource allocation information from the base station; and transmitting uplink data to the base station via a physical uplink shared channel (pusch) according to the uplink resource allocation information..
|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 searching for enhanced physical downlink control channel region|
The present invention relates to methods for searching an enhanced physical downlink control channel (e-pdcch), and a device for supporting the methods. According to one embodiment of the present invention, a method for searching an enhanced physical downlink control channel (e-pdcch) in a wireless access system can comprise the steps of: performing a blind decoding on a control channel region and searching a legacy physical downlink control channel (pdcch); and searching the e-pdcch on the basis of the searched legacy pdcch.
|Method for transmitting uplink control information, user equipment, method for receiving uplink control information, and base station|
In the present invention, a user equipment-specific offset information for indicating first physical uplink control channel (pucch) resources, which can be used for transmitting ack/nack related to a physical downlink control channel (pdcch) that is transmitted from a data region of a downlink subframe, is provided to a user equipment by means of a base station. The user equipment, which receives the pdcch from the data region of the downlink subframe, decides the pucch resource, based on offset information and an index of the resource that is included in the pdcch, and transmits ack/nack information that corresponds to the pdcch to the base station using the pucch resource..
|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..
|Terminal device, base station device, transmission method and transmit power setting method|
The objective of the present invention is to provide a terminal device capable of suppressing delay in switching between transmit/receive points, and of reliably switching between the transmit/receive points. In the device, a reception processing unit (203) receives control information including a transmission request for an a-srs and a report request for a downlink csi, whereupon a transmission signal formation unit (207) transmits the a-srs at a transmission power set on the basis of the report request.
|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 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..
|Method and user equipment for determining control channel resource|
The present invention discloses a method and a user equipment for determining a control channel resource. The method includes: detecting a downlink control channel that carries scheduling information of a downlink data channel and is sent by a base station, where the downlink control channel is formed by at least one control channel logical element, and the at least one control channel logical element is mapped to at least one antenna port; acquiring at least one of antenna port information of a first antenna port corresponding to a first control channel logical element of the successfully detected downlink control channel and an offset, and sequence number information of the first control channel logical element; and determining, according to at least one of the antenna port information and the offset, as well as the sequence number information..
|Method and apparatus for transmitting channel state information in multi-node system|
The present invention provides a method and apparatus in which user equipment sends channel state information. The method includes receiving mapping information informing an uplink (ul) channel mapped to a reference signal; determining a valid downlink (dl) subframe based on the mapping information; measuring the reference signal in the valid dl subframe; and transmitting channel state information (csi), generated based on the measurement, in a configured ul subframe, wherein the ul channel is placed in the configured ul subframe, and the valid dl subframe is a dl subframe including the reference signal mapped to the ul channel..
|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.
|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.
|System and method for throttling downlink data notifications in a network environment|
A method is provided in one example embodiment and includes creating an initial sample set comprising a plurality of notification messages, where each of the notification messages is associated with one of a plurality of bearers each of which has a first parameter associated therewith. The method further comprises prioritizing the notification messages of the initial sample set according to a value of the first parameter of the associated bearer to create a prioritized sample set and optimizing the prioritized sample set to create an optimized sample set.
|Dedicated barring and escape command|
In accordance with an example embodiment of the present invention, a method includes receiving a connection request in uplink signaling from a user equipment, the user equipment being located in a cell; making a determination whether the user equipment can be connected and, if it is determined that the user equipment cannot be connected, informing the user equipment by downlink signaling, as a response to the connection request, that the user equipment cannot be connected. The downlink signaling includes information that indicates that the user equipment should de-prioritize a current carrier frequency or current radio access technology, and can further include a timer value to indicate a period of time for which the current carrier frequency or current radio access technology is to be de-prioritized.
|Methods and arrangements for handover during device-to-device communication|
A method, computer program product, arrangement and a first communication device configured to perform cellular network assisted device-to-device communication with at least a second communication device. The first communication device has a communication link to a first network node.
|Downlink multi-user interference alignment scheme|
A method, system and device are provided for using a predetermined vector, vref and channel knowledge h, g from each transmitter to compute and feedback equivalent channel vector information hi,jeq to its affiliated transmitter. With this information, each transmitter selects li receivers and constructs a transmitted signal by applying a selected precoding vector to rank 1 data, thereby eliminating interference to the rest of the receivers in the network..
|Near-field mimo wireless test systems, structures, and processes|
Systems, processes, and structures allow enhanced near-field testing of the uplink and/or downlink performance of mimo wireless devices (dut), such as for any of product development, product verification, and/or production testing. Signal channels may preferably be emulated to test the performance of a device under test (dut) over a range of simulated distances, within a near-field test environment.
|Mimo wireless communication system|
In a lte-based wireless communication system having neighbouring first and second cells a first user in the first cell may experience significant interference from downlink transmissions in the second cell. Such interference can be reduced by selecting a precoder for downlink transmission to a second user in the first cell which will result in reduced interference to the first user after the first user is handed-over to be served by the second cell.
|Method for a terminal to receive a downlink signal in a cooperative base station wireless communication system and device for same|
The present invention relates to a method for a terminal to receive a downlink signal from a plurality of base stations in a wireless communication system. More particularly, the method comprises the steps of: receiving downlink scheduling information from a first base station; and using the downlink scheduling information in order to receive downlink data signals from the first base station and at least one second base station.
|Flexible disabling/enabling of cross-carrier scheduling in carrier-aggregated wireless data transmission|
The invention allows flexible disabling/enabling of cross-carrier scheduling in carrier-aggregated wireless data transmission. In response to detecting a predetermined disabling indication of cross-carrier scheduling of received carrier aggregated wireless data transmission, the disabling indication targeting subframes allocated to uplink in a first component carrier transmitted from a cross-carrier scheduling cell and to downlink in a second component carrier transmitted from a cross-carrier scheduled cell: a downlink control region in the targeted subframes in the second component carrier is monitored for uplink/downlink grants; and in response to detecting an uplink/downlink grant, the detected uplink/downlink grant is utilized in uplink/downlink scheduling of the targeted subframe in the second component carrier..
|Method, device and system for assigning ack channels to users|
A method for assigning acknowledgement (ack) channels to a user is used to feed back acks of a plurality of downlink sub-frames in one uplink sub-frame. According to the method, reserved ack channels are divided into blocks according to the number of downlink sub-frames; each downlink sub-frame corresponds to one block; each block is divided into several sub-blocks; control channel element (cce) sets within the same sub-frame are respectively mapped to different sub-blocks; and the ack channels are assigned to the downlink sub-frames according to a sequence of increasing a mapping label d first and then increasing a sub-block label m.
|Method, apparatus, and system for comp retransmission|
The present invention provides a method, an apparatus, and a system for comp retransmission. The method includes: sending downlink control signaling to a user equipment ue, so that the ue receives, according to the downlink control signaling, an initially transmitted signal sent by a serving transmission point and a cooperative transmission point by joint processing mode; receiving first nak information corresponding to the initially transmitted signal and returned by the ue, and sending a retransmitted signal corresponding to the initially transmitted signal to the ue according to the first nak information, where the initially transmitted signal also corresponds to second nak information sent by the ue to the cooperative transmission point, where the second nak information is used to instruct the cooperative transmission point to, when the serving transmission point sends the retransmitted signal to the ue, reduce interference to the ue with scheduling..
|Method and apparatus for indictating a temporary block flow to which a piggybacked acknowledgement/non-acknowledgement field is addressed|
Methods and base stations are described. A base station includes a receiver, a processor and a transmitter.
|Wireless base station device using coordinated harq communication system, wireless terminal device, wireless communication system, and wireless communication method|
A wireless communication system, includes a first wireless base station; a second wireless base station that performs a coordinated transmission; and a wireless terminal, wherein the wireless terminal includes a reception control unit that identifies a physical downlink channel transmitted from any of the first and second wireless base station according to one or more reference signals; a data reception unit that is capable of receiving data transmitted by the first wireless base station using a resource indicated by a first control channel and receiving data coordinately transmitted by the second wireless base station using a resource indicated by the received first control channel, a control channel transmission unit that transmits a second control channel and the reception control unit further controls hybrid automatic repeat request (harq) process for data coordinately transmitted by the first wireless base station and the second wireless base station based on the first control channel.. .
|Reference signals for an enhanced physical downlink control channel|
A method of wireless communication includes generating a first reference signal (e.g., dm-rs) based on a first scrambling identifier. The method also includes generating a second reference signal (e.g., dm-rs) based on a second scrambling identifier.
|Handling redundant data in a communication system|
Explicit discard indications are used that allows a radio network controller (105), when operating in a multi-point high speed downlink packet access, hsdpa, scenario, to send data to a user equipment (106) via plural radio base stations (104) while reducing the risk for unnecessary duplicate data to be sent over the uu interface between the radio base stations and the user equipment.. .
|Processing pmch and epdcch in lte|
Methods and apparatuses are provided for resolving collisions between a multicast channel (such as a physical multicast channel (pmch)) and a control channel (such as an enhanced physical downlink control channel (epddch)) in a wireless network, such as lte. In an aspect, a ue determines whether to process an enhanced physical downlink control channel (epdcch) or a signal of a service in a subframe.
|Terminal based grouping virtual transmission and reception in wireless networks|
Virtualized group-wise communications between a wireless network and a plurality of user equipments (ues) are supported using ue cooperation. Ue cooperation includes receiving, at a cooperating ue (cue), downlink information from the wireless network destined for a target ue (tue) and associated with a group identifier (id).
|Buffered indication of individually addressed traffic with reduced power consumption|
Embodiments provide a technique for enabling a wireless device to operate in a power saving mode without completely cutting off the wireless device from receiving outside communications. The technique includes, at an access point (ap), generating traffic indication map (tim) information that indicates whether downlink data directed to the wireless device is buffered at the ap.
|Communication method and device in time division duplexing system|
Embodiments of the present invention relate to a communication method and a device in a time division duplexing system. The communication method in a time division duplexing system includes: notifying a user equipment of an uplink-downlink configuration of a radio frame; specifying a part of downlink subframes corresponding to the uplink-downlink configuration of the radio frame as mbsfn subframes; and sending first information to the user equipment, where the first information is used to indicate that multicast areas of the mbsfn subframes are used for uplink communication or downlink communication..
|Methods, devices and computer program products for interference reduction in tdd systems allowing allocation of flexible subframes for uplink or downlink transmission|
Methods, devices and computer program products in relation to interference reduction are presented, in particular for devices comprising a transceiver module configured for tdd operation in a network environment wherein a partition of subframes of channels are configurable to be flexibly assigned for downlink or uplink transmission while other subframes are fixedly configured for either uplink or downlink transmission. Aspects of such devices encompasses a controller module configured to determine those subframes that are flexibly assigned and configured for downlink transmission, identify, among those determined subframes, a subframe carrying a control channel, and restrict physical resources for the control channel in the identified subframe.
|Apparatus and method for transmitting/receiving feedback information in a wireless communication system using beamforming|
An apparatus performs a method for generating information indicating channel quality when a dynamic range of a receive signal strength and an interference signal strength is considerable in a wireless communication system using beamforming. A base station (bs) for processing feedback information for scheduling receives from a mobile station (ms) first feedback information comprising a receive signal strength measurement result in paths selected from a plurality of downlink paths between the bss and the ms, designates a transmit (tx) resource for interference measurement of the ms based on the first feedback information, receives from the ms second feedback information comprising an interference measurement result in the designated tx resource region, and calculates a signal to interference plus noise ratio (sinr) of the ms based on the first feedback information and the second feedback information.
|Dynamic receive diversity selection for lte|
Methods, apparatuses and computer readable media are described that configure wireless circuitry in a wireless communication device. The wireless communication device establishes a connection to a wireless network using wireless circuitry that includes a first radio frequency receive signal chain and a second radio frequency receive signal chain.
|Triggering cell transition in an uplink power limited condition|
A method for triggering cell transition in an uplink power limited condition is disclosed. The method can include a wireless communication device determining that the wireless communication device is experiencing an uplink power limited condition; deriving a modified downlink channel quality measurement by adjusting a measured downlink channel quality to indicate a lower downlink channel quality than the measured downlink channel quality; generating a measurement report including the modified downlink channel quality measurement; and sending the measurement report to the serving cell to trigger transition of the wireless communication device from the serving cell to a second cell..
|Scheduling inter-radio access technology (irat) measurement during continuous data transmission|
A user equipment (ue) may improve scheduling of inter radio access technology (irat) measurement during continuous data transmission, for example in a high speed-physical downlink shared channel (hs-pdsch). The ue may determine whether an irat measurement is desired.
|Method for determining uplink transmission power and user equipment|
The present invention provides a method and apparatus for determining uplink transmission power, and a method and apparatus for uplink power control. The base station of the present invention provides user equipment (ue) with ue specific weights for downlink path loss for uplink power control when the ue simultaneously transmits signals using a plurality of nodes.
|Transmission power control for signals used by user equipment terminals for device-to-device services|
Methods, systems, and devices provide improved power control for signals used for device-to-device services. In one aspect, a user equipment (“ue”) terminal controls the transmission power of signals used for device-to-device (“d2d”) services based on power control parameters provided by a base station.
|Method for terminal to transmit/receive signal to/from base station in wireless communication system and device therefor|
The present invention relates to a method for a terminal to transmit/receive a signal to/from a base station in a specific subframe in a wireless communication system. More particularly, the present invention comprises the steps of: receiving setting information of the specific subframe from the base station; and receiving a downlink signal from the base station or transmitting an uplink signal to the base station, in the specific subframe, wherein the specific subframe has a first segment for receiving the downlink signal in the front end thereof, a second segment for transmitting the uplink signal in the rear end thereof, and when the specific subframe is set for the purpose of downlink signal reception, the setting information defines the size of the first segment of the specific subframe, and when the specific subframe is set for the purpose of uplink signal transmission, the setting information defines the size of the second segment of the specific subframe..
|Methods and devices for transmitting data|
Embodiments of the present disclosure provide a method and a device for transmitting data. The method includes: a user equipment receives downlink data sent from a base station through downlink resources of a special subframe; the user equipment determines its corresponding guard period level, the guard period level corresponds to a round-trip time of the user equipment and indicates a length of an orthogonal frequency division multiplexing (ofdm) symbol in a guard period corresponding to the user equipment in the special subframe; the user equipment determines, according to its corresponding guard period level, a position of uplink resources corresponding to the user equipment in guard period resources of the special subframe; and the user equipment sends uplink data to the base station through the uplink resources corresponding to the user equipment in the guard period resources of the special subframe..
|Downlink transmission point selection in a wireless heterogeneous network|
A heterogeneous wireless communication network comprises a macrocell base station that includes a first transmission point, at least one microcell base station that includes a second transmission point and a controller configured to enable transmission of wireless data from the macrocell base station and the at least one microcell base station to a user equipment (ue). The controller is configured to determine a set of transmission point combinations for providing downlink data, determine, using a statistics of acks and nacks received for previous downlink transmissions from the transmission point combinations, a sequence of downlink transmissions to the ue from the transmission point combinations in the set..
|Transmission of uplink control information in inter-enb carrier aggregation|
A user equipment (ue) for communication in a wireless network supporting inter-eutran node b (enb) carrier aggregation has a receiver to communicate with a first enb corresponding to a primary cell (pcell) in the wireless network and a second enb corresponding to a secondary cell (scell) in the wireless network. The receiver is configured to receive downlink data through a physical downlink shared channel (pdsch) in the scell.
|Method for transmitting reference signals in a downlink multiple input multiple output system|
In a system having a plurality of cells participating in a coordinated multi-point (comp) operation, a method for transmitting reference signals (rss) to user equipment (ue) includes generating, by base station (bs) included in each of the plurality of cells, a subframe including rss for a ue located in the each of the plurality of cells, and transmitting the generated subframe to the ue by the bs. The rss include rss for channel measurement, and rss for data demodulation, the plurality of cells are grouped according to frequency shift values applied to the rss for channel measurement and rs allocation patterns are determined for two cells among the plurality of cells according to a predetermined rule..
|Method for transmitting control information and apparatus for same|
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink channel state information (csi) in a wireless communication system that supports carrier aggregation, and to an apparatus for the method.
|Apparatus and method for performing random access in wireless communication system|
Disclosed are a method and an apparatus for performing a random access by a user equipment in. The method includes transmitting a random access preamble to an evolved-nodeb (enb) on at least one serving cell; and receiving a random access response message as a response to the random access preamble from the enb, wherein the random access response message is transmitted through a physical downlink shared channel (pdsch) ordered by a physical downlink control channel (pdcch) scrambled by the at least one random access radio network temporary identifier (ra-rnti) for the at least one serving cell, respectively.
|Method of transmitting control information in wireless communication system|
A method of transmitting control information in a wireless communication system is provided. The method includes configuring downlink control information including a plurality of information fields according to a format of scheduling for transmission of a single codeword in a spatial multiplexing mode, wherein the plurality of information fields include a precoding matrix indicator (pmi) confirmation filed for indicating whether precoding is performed on downlink data by using a pmi reported by a user equipment and a transmitted precoding matrix indicator (tpmi) information field for indicating a codebook index, and at least one of the pmi confirmation field and the tpmi information field indicates an offset value of power for the downlink data transmission or interference information for the downlink data transmission, and transmitting the downlink control information..
|Base station device, mobile station device, program, uplink synchronization requesting method, and synchronization-shift measurement signal transmitting method|
A mobile station device that includes a receiver configured to receive control information, on a physical downlink control channel from a base station device, using one downlink control information format among a number of downlink control information formats, wherein the one downlink control information format is used for downlink scheduling and a random access order, in a case that the one downlink control information format is used for the downlink scheduling, the control information indicates a downlink resource assignment, and in a case that the one downlink control information format is used for the random access order, a preset value is set for a field of the downlink resource assignment.. .
|Method of providing harq feedback information|
In a wireless communication system where a terminal and a base station communicate with each other using a frame including at least one downlink sub-frame and at least one uplink sub-frame, the terminal and the base station calculate the number of hybrid automatic repeat request (harq) feedback regions of the downlink sub-frames and the uplink sub-frames in accordance with a third value corresponding to an absolute value of subtraction between a first value corresponding to the number of downlink sub-frames of the frame and a second value corresponding to the number of uplink sub-frames of the frame or the sum of the first value and the second value and configure harq feedback regions in the downlink sub-frames and the uplink sub-frames.. .
|Adjusting blind decoding of downlink control channel|
The present disclosure is related to adjusting a blind decoding of a downlink control channel in a base station. A method of adjusting a blind decoding of a downlink control channel may include creating an enhanced physical downlink control channel (epdcch) using the number of epdcch candidates per aggregation level (al) in each of one or more epdcch sets for user equipment; and transmitting the created epdcch to the user equipment.
|Mobile communication devices and methods for physical downlink control channel (pdcch) monitoring|
A mobile communication device having a semi-persistent scheduling (sps) cell radio network temporary identifier (c-rnti) is provided. In the mobile communication device, a wireless module performs wireless transmission and reception to and from a cellular station, and a controller module performs operations for communication controls.
|Method and apparatus for transmitting control information in a wireless communication system|
The present invention relates to a wireless communication system, and more specifically, to an ack/nack (acknowledgement/negative ack) transmission method in a wireless communication system and an apparatus therefor. The ack/nack transmission method preformed by user equipment in a wireless communication system comprises: receiving a pdcch (physical downlink control channel); receiving a pdsch (physical downlink shared channel) indicated by the pdcch; and transmitting an ack/nack for the pdsch.
|Blind decoding for an enhanced physical downlink control channel (epdcch)|
Technology for blind decoding downlink control information (dci) from an enhanced physical downlink control channel (epdcch) is disclosed. In an example, a user equipment (ue) can include a processor configured to: recursively attempt to decode the dci from enhanced control channel elements (ecce) of the epdcch from physical resource block (prb) region candidates in a prb set using a selected set of enhanced resource element group (ereg) index maps for the ecce until the dci is successfully decoded; and decode the dci with an ereg index map associated with a same aggregation level used to encode the dci.
|Systems and methods for semi-persistent scheduling of wireless communications|
Methods, systems, and devices for transmission and reception of sps communications are disclosed herein. User equipment (ue) is configured to receive, in a first subframe, a physical downlink control channel or enhanced physical downlink control channel (pdcch/epdcch) corresponding to semi-persistent scheduling (sps) activation.
|User equipment, radio network node and methods therein|
Embodiments herein relate to a method in a user equipment (10) for performing channel estimation of one or more long term channel properties at the user equipment (10), wherein the user equipment (10) is served by a radio network node (12). The user equipment (10) assumes that a default channel state information reference signal, csi-rs, resource is co-located with a demodulation reference signal, dmrs, port when co-location is not explicitly signalled from the radio network node (12), wherein the default csi-rs resource is configured by reading a predetermined entry in a configurable list of candidate co-location csi-rs resources for a dynamic indication of co-location options in a downlink control information, dci, format.
|Methods, network nodes and user equipments in a wireless network for communicating an epdcch|
A method performed by a network node of a wireless communication network is provided for communicating an enhanced physical downlink control channel, epdcch, to a user equipment, ue. The method comprises transmitting (606) a configuration message to the ue.
|Hybrid automatic repeat request (harq) mapping for carrier aggregation (ca)|
Technology for conditional hybrid automatic retransmission re-quest (harq) mapping for carrier aggregation (ca) is disclosed. One method can include a user equipment (ue) determining when a subframe for physical downlink shared channel (pdsch) transmission is configured for downlink semi-persistent scheduling (sps).
|Methods and apparatus for enabling further enhancements to flexible subframes in lte heterogeneous networks|
A method is provided for communication in a wireless telecommunication network. The method comprises providing, by a network element, one of an uplink grant or a downlink grant to at least one ue that the network element has determined, based on information received from a plurality of ues, is closer to the network element than is another ue, wherein the uplink grant is scheduled such that the ue transmits to the network element only during at least one flexible subframe, and wherein the downlink grant is scheduled such that the network element transmits to the ue only during at least one flexible subframe.
|Methods of processing enhanced physical downlink control channel information including differentiating between sets of physical resource block pairs, and related network nodes and user equipments|
Methods of operating a network node are provided. Various embodiments may provide methods of processing enhanced physical downlink control channel (epdcch) information by a network node of a radio telecommunications system.
|Determination of enhanced physical downlink control channel candidates in a wireless communication network|
In embodiments, an evolved node b (enb) of a wireless communication network may configure an enhanced physical downlink control channel (epdcch) physical resource block (prb) set for a user equipment (ue). The epdcch-prb set may include a plurality of prb-pairs.
|Method and apparatus for indicating physical resource block pairs for epdcch|
A method of specifying one or more sets of one or more physical resource block (prb) pairs from among a plurality of prb pairs in a subframe that a user equipment (ue) is to monitor for an enhanced physical downlink control channel (epdcch) includes sending, from a base station, a first representation of the prb blocks, the representation including a plurality of bits, a total number of the plurality of bits being less than a product of total number of the plurality of prb pairs and a total number of the one or more sets, the first representation indicating which of the plurality of prb pairs are in at least one of the one or more sets of one or more prb pairs the ue is to monitor for the epdcch.. .
|Transmission and reception of channel state information|
The present disclosure is related to reporting channel state information associated with a downlink channel in a wireless communication system.. .
|Reducing synchronization times during testing of wireless devices|
The disclosed embodiments provide a system that tests wireless devices. The system includes a signal generator that generates a downlink signal.
|Method for transmitting and receiving a signal, and apparatus therefor|
The present invention relates to a wireless communication system. Specifically, a method for transmitting an uplink signal in a wireless communication system supporting carrier aggregation includes the steps of: setting a first cell of a first time division duplex (tdd) uplink (ul)-downlink (dl) configuration, and a second cell of a second tdd ul-dl configuration; receiving data over a dl subframe of the first cell; and transmitting a control signal over a ul subframe of the second cell in response to the received data, wherein a relationship of the dl subframe and ul subframe is determined by parameter values set in a specific tdd ul-dl configuration in a tdd wl-dl configuration set, the specific tdd ul-dl configuration has the minimum number of dl subframes from among one or more of tdd ul-dl configurations in which subframes set as a dl or x are all set as the dl in the first cell or the second cell, the subframes set as x have different subframe directions in the first cell and the second cell at a corresponding subframe timing, and the uses thereof are limited in either the first cell or the second cell..
|Method for setting subframe in wireless communication system|
The present invention relates to a method for setting a subframe in a wireless communication system and to an apparatus for same. More particularly, the method for setting the subframe in the wireless communication system that is operated by a time division duplex (tdd), comprises the steps of: setting at least one uplink subframe and at least one downlink subframe according to an uplink-downlink (ul-dl) configuration; receiving resetting information with respect to a specific uplink subframe from the at least one uplink subframes; and setting the specific uplink subframe so as to include a first section for an uplink and a second section for a downlink..
|Method for transmitting control information in wireless communication system and device therefor|
The present invention relates to a wireless communication system. In particular, the present invention relates to a method for receiving a downlink control channel in a wireless communication system, and a device therefore, more particularly, to the method and a device therefore, the method comprising the steps of: receiving an upper layer signal including a plurality of frequency resource sets; receiving a subframe carrying a plurality of downlink control channel candidates; and monitoring the plurality of control channel candidates in one specific frequency resource set from the plurality of frequency resource sets, for the downlink control channel, wherein the one specific frequency resource set is determined according to the type or the characteristic of the subframe..
|Resource allocation in communications system|
An exemplary embodiment discloses a multi-subframe physical uplink control channel pucch resource arrangement for pucch format 1a/1b resource allocation for enhanced physical downlink control channel epdcch in time division duplex tdd transmission. A definition of a semi-static offset for each epdcch set is extended by considering multiple downlink subframes, and a dynamic offset mechanism is enhanced to avoid resource collision between multiple dl subframes..
|Phich-less operation for uplink-downlink configuration zero|
Various communication systems may benefit from techniques for handling inter-band carrier aggregation (ca). For example, systems of the third generation partnership project (3gpp) long term evolution (lte) advanced (lte-a) may benefit from a uplink (ul) downlink (dl) configuration zero handling, particularly in cases where there is no physical hybrid automatic repeat request (harq) indicator channel (phich).
|Methods and apparatus for enabling further l1 enhancements in lte heterogeneous networks|
A network element in a first cell in a wireless telecommunication network is provided. The network element comprises a processor configured such that the network element provides uplink and downlink grants in the first cell, wherein the first cell is a low-power cell within the coverage area of a second, high-power cell, and wherein the first cell acts as a secondary cell and the second cell acts as a primary cell in a carrier aggregation mode, and wherein at least one uplink control signal is received by one of only the first cell or both the first cell and the second cell..
|Extension carrier for arq|
According to one or more embodiments described and claimed herein, harq acknowledgements, re-transmissions, and related signaling (e.g., channel quality reports) are performed on a re-transmission extension carrier (rec) separate from the primary downlink traffic carrier(s). In various embodiments, as explained herein, the rec may comprise an aggregated wireless communication network channel, which may be cross-channel scheduled or may have its own scheduler.