Patent application number | Description | Published |
20090285160 | INCREASING RELIABILITY OF HYBRID AUTOMATIC REPEAT REQUEST PROTOCOL - In a communication system using HARQ, the problem of false ACK detection when no ACK/NACK feedback is transmitted is solved sent by varying the reliability of the scheduling information transmitted to the user terminal on a downlink control channel depending on whether the user terminal is expected to use a first or second uplink channel for sending ACK/NACK feedback. When the user terminal is expected to use the first channel to send ACK/NACK feedback, the base station transmits scheduling information to the user terminal with normal reliability. When the user terminal is expected to send ACK/NACK feedback on the second uplink channel, the base station transmits the signaling information to the user terminal with enhanced reliability. The reliability of the signaling information can be increased, for example, by increasing the transmit power on the downlink control channel, increasing the aggregation level, or a combination thereof. | 11-19-2009 |
20100240392 | Angle of Arrival Downlink Signaling - A wireless communication network determines positioning data for a given mobile terminal, in response to receiving a positioning event trigger for that mobile terminal. The network sends the positioning data to the mobile terminal via control-plane signaling, for transfer by the mobile terminal to the user plane. Correspondingly, the mobile terminal receives the positioning data over the control plane, transfers it to the user plane, and transmits the positioning data or location information derived from the positioning data, via user-plane signaling. As such, network-performed positioning measurements and/or geographic coordinate data derived therefrom are transferred from the control plane, to the user plane, for flexible and transparent transmission from the mobile terminal to a given node having a user-plane connection with the mobile terminal. Such a node may be essentially any type of communication device, system, or server, internal or external to the network. | 09-23-2010 |
20100271965 | Methods and Apparatus in a Wireless Communication System - The present invention relates to methods and apparatus in a RBS and a UE for reference signal (RS) measurements in an OFDM system, that enable having a configurable RS transmission bandwidth which is smaller than the system bandwidth. This allows for better interference coordination of RS, which in turn improves the UE RS measurements used for different services such as positioning. The RBS retrieves the RS transmission bandwidth, determines a RS measurement bandwidth based on this RS transmission bandwidth, and transmits the determined bandwidth to the UE. The UE receives the RS measurement bandwidth and measures the RS in a bandwidth determined based on the received measurement bandwidth and the UE capability. | 10-28-2010 |
20100317351 | DETECTION OF COLLISIONS OF RADIO COVERAGE CELL IDENTIFIERS - Additional information is included in or used to generate a positioning reference signal to enable detection of a cell identifier “collision” between two different cells associated with two or more base stations. In one example embodiment, a user equipment terminal detects the collision using the additional information included in or used to generate positioning reference signals sent by two or more base stations and reports the collision to the network, and the network resolves the collision by assigning a different cell identifier to one of the colliding cells. | 12-16-2010 |
20100323723 | Base Station Mapping with Angle-of-Arrival and Timing Advance Measurements - Methods and apparatus for determining a position estimate for a base station transceiver node in a wireless communication system are disclosed. Angle-of-arrival and/or timing advance measurements corresponding to transmissions received from mobile stations for which geographic locations are already known are combined with known locations for the mobile stations to estimate the position of the base station receiving the transmissions. This estimated base station position may be used, for example, in subsequent positioning of mobile stations for which locations are not already known, such as mobile stations not equipped with GPS technology. The estimated base station position may also be used to update a database of base station coordinates for the wireless network. | 12-23-2010 |
20100330999 | Handover Support in Radio Communications - User equipment is to be handed over from a source cell to a target cell in a radio communication network. The user equipment is assigned dedicated uplink resources in the source cell, and a handover candidate cell is prepared for receiving the user equipment by obtaining information about the assigned dedicated uplink resources in the source cell. A radio base station for the handover candidate cell is listening for user equipment transmissions and determines, when receiving a user equipment transmission, whether the received user equipment transmission can be detected based on information about the assigned dedicated uplink resources in the source cell in order to assess if the received user equipment transmission is coming from user equipment for which the handover candidate cell has been prepared. The radio base station for the handover candidate cell initiates a handover procedure for the user equipment if it is assessed that the received user equipment transmission is coming from user equipment for which the handover candidate cell has been prepared. In this way, handover can be initiated and completed even if the serving radio base station of the source cell cannot receive a handover-triggering measurement report from the UE. | 12-30-2010 |
20110080838 | Methods and Arrangements in a Mobile Telecommunication Network - Methods and apparatus for distributing available transmit power in a user equipment (UE) to avoid violation of UE power limitations on a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH) are described. Available power for transmission on at least the PUCCH is determined and at least one power headroom report indicating available power for transmission on at least the PUCCH is transmitted to a base station. | 04-07-2011 |
20110081927 | Methods and Arrangements in a Mobile Telecommunication Network - The present invention relates to methods and arrangements for assisting a User Equipment (UE) to determine transmit power to be used on a first uplink component carrier y, wherein the base station is configured to communicate with the UE over a plurality of uplink and downlink component carriers x,y. The UE is aware of path loss parameters associated with a second downlink component carrier x. The method in a base station comprises determining cell specific path loss parameters associated with the component carriers of the base station. The cell specific path loss parameters at least comprises path loss parameters associated with the first uplink component carrier y and a second uplink component carrier x which is paired to the second downlink component carrier x, wherein the second uplink component carrier and second downlink component carrier are within one frequency band. The method comprises the further steps of calculating a pathloss offset, deltaPL(y,x), for the first uplink component carrier y, wherein the pathloss offset deltaPL(y,x) is the pathloss power offset for the first uplink component carrier y with respect to the second uplink component carrier x, and sending the calculated pathloss offset, deltaPL(y,x) to the UE. | 04-07-2011 |
20110081932 | PUCCH Resource Allocation for Carrier Aggregation in LTE-Advanced - The invention is a method and apparatus for signaling uplink control information in a mobile communication network using carrier aggregation. The signaling mechanism allows the transmission, on a single uplink component carrier, of control information associated with a downlink transmission on multiple aggregated downlink component carriers. Semi-statically reserved resources for the transmission of control information on the uplink component carrier may be dynamically shared by user terminals that are assigned multiple downlink component carriers for downlink transmissions. Implicit or explicit resource indication can be used in combination with dynamic resource indication. | 04-07-2011 |
20110085491 | Extended Cell Range - A solution for extending the cell range and in particular for a solution for handling timing alignment is presented herein. The solution comprises determining a distance between user equipment and a radio access network node. User equipment located at a distance related to a pre defined timing advance value is scheduled to handle uplink communication so as to arrive at a later time slot for reducing the risk of conflicting with other transmissions towards the access node. | 04-14-2011 |
20110141985 | Method and Arrangement for Reconfiguring Mapping of Carrier Indicator Field to Component Carrier - A method and an arrangement in a radio network node for reconfiguring mappings from Carrier Indicator Field-values to component carriers are provided. Each CIF-value is mapped to a respective component carrier comprising a respective shared data channel. Each respective shared data channel corresponds to at least one downlink control channel carrying said each CIF-value. The radio network node reconfigures mappings from CIF-values to component carriers, while at least one mapping of CIF-value to component carrier is maintained. The component carrier of said at least one mapping from CIF-value to component carrier comprises said at least one downlink control channel and a shared data channel corresponding to said at least one downlink control channel. The radio network node sends at least one of the reconfigured mappings from CIF-values to component carriers to the user equipment. | 06-16-2011 |
20110170514 | Methods and Arrangements in a Telecommunication System for Sending Feedback Data and User Data on a Combined Feedback and Data Channel - A method and an arrangement ( | 07-14-2011 |
20110176443 | Method and Arrangement in a Communication System - Method and arrangement in a terminal for receiving data packets from a base station and providing feedback to the base station. The feedback concerns the reception status of the received data packets and may comprise an ACK/NAK. The method comprises receiving and decoding data packets from the base station in a sub-frame. It is further established whether any data packet within the received subframe is not correctly received and detected whether any subframe, expected to be received, has been missed. Further, acknowledgement information ACK/NAK is generated, a scrambling code selected with which the ACK/NAK is scrambled. The scrambled ACK/NAK is then sent to the base station, concerning the reception status of the data packets within the received subframes. | 07-21-2011 |
20110176499 | Methods and Apparatus for Improved Reference Signal Correlation Characteristics - The auto-correlation properties of a reference signal or pilot pattern, such as a position reference signal (PRS) in a Long Term Evolution communication system, is improved by modifying the currently specified PRS patterns, and/or by PRS pattern shaping. Pattern shaping can result in creation of virtual PRS patterns, for example, by controlling the PRS transmitted or received power used by the correlator. PRS power shaping can be implemented differently according to the location where the PRS power is calculated, e.g., in a network node or in a user equipment. | 07-21-2011 |
20110261858 | Radio Base Station and User Equipment and Methods Therein - Embodiments herein include a method in a user equipment (UE) for transmitting uplink control information in time slots of a subframe over a radio channel to a radio base station. The uplink control information is comprised in a block of bits. | 10-27-2011 |
20110274062 | SYSTEM AND METHOD FOR SIGNALING CONTROL INFORMATION IN A MOBILE COMMUNICATION NETWORK - A method of wirelessly transmitting control information includes generating control information comprising a plurality of control bits and encoding the control bits using a block code that outputs an encoded bit sequence comprising encoded bits b( | 11-10-2011 |
20110292887 | Method and Arrangements in a Communication System - Methods and arrangements in a network node and mobile terminal, respectively, in a wireless communication system supporting aggregation of component carriers. The method in a network node involves, when resources on at least two downlink component carriers are being assigned to a mobile terminal at the same time, allocating ( | 12-01-2011 |
20110310759 | UPLINK CONTROL INFORMATION (UCI) MAPPING INDICATOR FOR LONG TERM EVOLUTION (LTE) CARRIER AGGREGATION - A system and method to instruct a User Equipment (UE) how Uplink Control Information (UCI) on a Physical Uplink Shared Channel (PUSCH) should be transmitted with carrier aggregation. A semi-static signaling of a UCI mapping bit (via a Radio Resource Control (RRC) parameter) is used by a base station such as an eNodeB to require the UE to transmit UCI using one of two pre-determined UCI transmission modes. The bit can be decided by the base station, considering, for example, the available bandwidth or quality of different Uplink Component Carriers (UL CCs) associated with the UE. This network-based solution allows the network to either configure a general rule of UCI transmission by the UE or to enforce the UCI transmission on the Uplink Primary cell (UL Pcell). Because of the rules governing abstracts, this abstract should not be used to construe the claims. | 12-22-2011 |
20110312339 | Methods and Arrangements in a Wireless Communication System - The present invention relates to methods and arrangements in a network node such as a positioning server and a user equipment of enabling downlink-based positioning of the user equipment which is served by a serving cell. The network node estimates ( | 12-22-2011 |
20110317613 | Method and Arrangement for DL-OTDOA (Downlink Observed Time Difference of Arrival) Positioning in a LTE (Long Term Evolution) Wireless Communications System - The present invention relates generally to methods and arrangements for positioning in a wireless communications system, such as LTE. In particular, the present invention relates to improving positioning accuracy. The invention provides methods and arrangements for scheduling positioning subframes, i.e. low interference subframes, for allowing aligning of positioning subframes across a number of cells in order to reduce the interference from data symbols of cells in the neighborhood of a cell serving the UE that is performing positioning measurements. A time instance during which transmission of the positioning subframes is to occur in a wireless communications network is selected. The base stations in the wireless communications network are informed about the selected time instance, whereupon the base stations schedule and transmit the positioning subframes based on the selected time instance, whereby the positioning subframes are aligned throughout the network. | 12-29-2011 |
20120002609 | Method and Arrangement for Positioning in a Wireless Communications System - Systems and methods provide for an increase in hearability by a user equipment (UE, | 01-05-2012 |
20120008552 | Power Headroom Reporting for Carrier Aggregation - Power headroom reporting and report handling are discussed in the context of a Physical Uplink Shared Channel (PUSCH), on which a user equipment (UE) has no valid uplink grant, and a Physical Uplink Control Channel (PUCCH) on which a UE has no transmission. Under these circumstances, it is not possible to directly calculate one or more parameters which are used to calculate power headroom. Accordingly, exemplary embodiments provide for predetermined, known values to be used by the UE to calculate the power headroom, and by the eNodeB to understand the meaning of a received power headroom report. | 01-12-2012 |
20120020421 | Methods and Apparatus for Varying Reduced Transmission Resources - Inter-cell interference coordination across layers of a communication network can be implemented by configuring a cell to transmit one or more downlink transmission resources having variably reduced transmission activity. A transmitting node, such as a macro cell, can transmit transmission resources, such as resource elements, resource blocks, subframes, and frames, having reduced transmission activity at varying predictable times according to a selected cell activity pattern. A receiving node, such as a user equipment, can decide to make received signal measurements according to the cell activity pattern. | 01-26-2012 |
20120039158 | Systems and Methods For Transmit Diversity For DFT Precoded Channels - A transmission method and apparatus that combines the benefits of DFT precoding and transmit diversity coding for PUCCH transmission. In one aspect, the invention provides an improved transmit diversity coding method and apparatus for DFTS-OFDM PUCCH with minimal impact on multiplexing capacity. In one embodiment, the improved transmit diversity method and apparatus has the feature of employing frequency-domain separation for the payload signals. | 02-16-2012 |
20120046032 | Arrangement and Method for Identifying PUCCH Format 3 Resources - The disclosure relates to a user equipment for a wireless communications system, and to a related method for identifying a resource to use for a transmission of control information on a physical uplink control channel, PUCCH, format 3. The method comprises receiving ( | 02-23-2012 |
20120082058 | IMPROVED MOBILITY MANAGEMENT IN A COORDINATED MULTIPOINT NETWORK - In one aspect, the present invention in one or more embodiments improves mobility management—e.g., handover processing enhancement—by providing/utilizing additional information in combination with CoMP operation, for enhancing the handover procedure. For example, the additional information is used to improve judging the most suitable target cell ( | 04-05-2012 |
20120087317 | Methods of Providing Power Headroom Reports Arranged In Order of Component Carrier Indices and Related Wireless Terminals and Base Stations - Power headroom reports may be transmitted from a wireless terminal to a base station wherein a primary component carrier and at least one secondary component carrier are provided for uplink transmissions from the wireless terminal to the base station and wherein a respective component carrier index is assigned to each of the at least one secondary component carriers provided for the wireless terminal. Respective power headroom reports may be generated for the primary component carrier and for each of the at least one secondary component carriers, and a MAC control element may be generated including the power headroom reports for the primary and secondary component carriers. More particularly, the power headroom reports for each of the at least one secondary component carriers may be arranged in order of the component carrier indices for the respective secondary component carriers. The MAC control element including the power headroom reports for the primary and secondary component carriers may be transmitted from the wireless terminal to the base station over one of the component carriers. Related wireless terminals, and base stations are also discussed. | 04-12-2012 |
20120113907 | POWER CONTROL FOR ACK/NACK FORMATS WITH CARRIER AGGREGATION - A system and method for determining a Physical Uplink Control Channel (PUCCH) power control parameter h(n | 05-10-2012 |
20120113938 | RANDOM ACCESS PROCEDURE UTILIZING CYCLIC SHIFT OF DEMODULATION REFERENCE SIGNAL - A method and apparatus for accessing a wireless communication system, and for processing random access attempts. A mobile communication device detects random-access information transmitted by a base station, transmits a random-access preamble to the base station according to the random-access information, and receives a random-access response from the base station. The random-access response includes at least an allocation of uplink resources to be used for the next step in the random access procedure. The mobile device also selects a reference signal sequence index from a pre-determined set of sequence indexes, and transmits a first message to the base station using the uplink resource allocation provided in the random-access response. The first message includes a device identifier and a first demodulation reference signal derived from a base reference sequence shifted according to the selected sequence index. | 05-10-2012 |
20120120889 | TERMINAL, NETWORK NODE, SYSTEM AND METHODS FOR SOFT BUFFER HANDLING IN CARRIER AGGREGATION - A terminal (e.g., mobile communication device, UE) and a method are described herein for allocating a soft buffer after interacting with a network node (e.g., base station, eNB). In addition, a network node (e.g., base station, eNB) and a method are described herein that facilitates robust operations during a reconfiguration period while a terminal allocates a soft buffer located therein. | 05-17-2012 |
20120140716 | Method and Arrangement for Transmitting Uplink Control - In various embodiments, a method for transmitting uplink control information in a cell is provided. The uplink control information is transmitted during a time slot. According to this method, bits corresponding to uplink control information are mapped to complex modulation symbols. The complex modulation symbols are spread in the time slot using a set of orthogonal cover code, OCC, sequences, such that at least two of the complex modulation symbols are spread using different OCC sequences. The uplink control information is then transmitted using said spread complex modulation symbols. | 06-07-2012 |
20120188947 | Uplink Power Control in Wireless Communication Systems - Methods in a Long Term Evolution (LTE) base station for controlling transmit power of a User Equipment(UE) are provided. The method includes configuring UE individual power weighting factors to be used for weighting available UE transmit power between uplink component carriers and/or between Physical Uplink Control Channel (PUCCH) and Physical Uplink Shared Channel (PUSCH); and signaling the configured UE individual power weighting factors to the UE. Related methods and arrangements are also provided. | 07-26-2012 |
20120188952 | WEIGHTED SOFT BUFFER HANDLING IN RADIOCOMMUNICATION SYSTEMS - Weighting factor information can be transmitted from a base station toward a terminal. The weighting factor information can be used by the terminal to allocate a portion of a buffer for received codewords, or transport blocks, associated with each component carrier that has been assigned to that terminal. | 07-26-2012 |
20120207108 | Methods and Nodes Related to Coding of Channel Status Information (CSI) Payload - Methods, for use in a communications system, for transmitting information that applies a method for channel coding the CQI/PMI information, wherein a turbo coding method is applied when the size of the CQI/PMI information is above a first threshold value. The methods further include setting, based on the method applied for the channel coding, an offset value indicative of the difference in code rate between the code rate of the CQI/PMI information and the assigned code rate of the UL-SCH data information on the PUSCH. The methods also include determining, based on the offset value, the number of coded bits to be used for transmission of the CQI/PMI information, and transmitting the CQI/PMI information to a radio access network node on resources assigned based on the determined number of coded bits. | 08-16-2012 |
20120275395 | METHODS AND ARRANGEMENTS IN A WIRELESS COMMUNICATION SYSTEM - Particular embodiments provide a method in a mobile terminal ( | 11-01-2012 |
20130003585 | Methods and Apparatus in a Wireless Communication System - The present invention relates to methods and apparatus in a RBS and a UE for reference signal (RS) measurements in an OFDM system, that enable having a configurable RS transmission bandwidth which is smaller than the system bandwidth. This allows for better interference coordination of RS, which in turn improves the UE RS measurements used for different services such as positioning. The RBS retrieves the RS transmission bandwidth, determines a RS measurement bandwidth based on this RS transmission bandwidth, and transmits the determined bandwidth to the UE. The UE receives the RS measurement bandwidth and measures the RS in a bandwidth determined based on the received measurement bandwidth and the UE capability. | 01-03-2013 |
20130003664 | Scheduling of a User Equipment in a Radio Communication System - A radio base station ( | 01-03-2013 |
20130010711 | Random Access with Primary and Secondary Component Carrier Communications - The invention relates to random access procedures in an LTE-system applying carrier aggregation, in particular to support network-initiated random access on secondary cells. A UE transmits a preamble on a random access channel to a radio base station on a secondary cell and receives or detects a random access response message from the base station including timing advance information for uplink transmission by the UE. The UE can determine the secondary cell that the control information in the random access response message refers to and transmits to the base station based on the timing advance information in the random access response message. | 01-10-2013 |
20130039188 | RADIO NETWORK NODE, USER EQUIPMENT AND METHODS THEREIN - Embodiments herein relate to a method in a user equipment for handling control information in a radio communications network. The user equipment is served in a cell controlled by a radio network node and is of a second type of user equipments. The user equipment monitors a search space for control information of a physical data control channel, PDCCH, which search space is associated with the second type of user equipments. The PDCCH comprises at least one control channel element that comprises resource elements at least partly comprised in a second region of resource elements. The resource elements of the second region are only allowed to be scheduled for control information to user equipments of the second type. The at least one CCE is defined in relation to a CCE of a first region of resource elements, which resource elements of the first region are allowed to be scheduled for control information to user equipments of a first type. The user equipment detects control information within the monitored search space, and uses the detected control information for communicating with the radio network node. | 02-14-2013 |
20130039286 | Method and Arrangement for Uplink Power Control - The disclosure relates to methods and devices for performing uplink power control in a radio communication system. An example method comprises a step of receiving, at a user equipment (UE) a transmit power control (TPC) command. The method also comprises, if the UE does not have an uplink transmission scheduled for a subframe associated with the TPC command, a step of accumulating, by the UE, the TPC command with previously received TPC commands based on whether the UE has reached a maximum transmit power or a minimum transmit power in a reference format for a Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS) or Physical Uplink Control Channel (PUCCH) transmission. Thus the UE is enabled to receive TPC commands while the UE is not transmitting anything in the uplink. | 02-14-2013 |
20130039331 | AGGREGATED CARRIER SYNCHRONIZATION AND REFERENCE SIGNAL TRANSMITTING AND RECEIVING METHODS, DEVICES AND SYSTEMS - A node of a wireless network transmits information to a user equipment over an aggregated carrier that includes a primary carrier having a first set of primary carrier time/frequency resources and a secondary carrier having a second set of secondary carrier time/frequency resources. Synchronization signals and/or reference symbols are transmitted to the user equipment on the secondary carrier less often than on the primary carrier. An indication of when and/or how often the synchronization signals and/or reference symbols will be transmitted to the user equipment on the secondary carrier may also be transmitted to the user equipment over the primary carrier. By transmitting synchronization signals and/or reference symbols to the user equipment on the secondary carrier less often than on the primary carrier, resources of the secondary carrier may be conserved, energy efficiency of the secondary carrier may be increased, and/or interference with other cells may be reduced or prevented. | 02-14-2013 |
20130044700 | CROSS-SCHEDULED RANDOM ACCESS ORDER TRANSMITTING AND RECEIVING METHODS, DEVICES AND SYSTEMS - A node of a wireless network includes processor circuitry that is configured to obtain an identification of a cell on which a user equipment shall transmit a random access preamble and to encode the identification of the cell on which the user equipment shall transmit the random access preamble into at least one unused bit position of a physical downlink control channel random access order. A transmitter is responsive to the processor circuitry and is configured to transmit the physical downlink control channel random access order including the identification of the cell that was encoded into the at least one unused bit position of the physical downlink control channel random access order. Related user equipment, systems and methods are also described. | 02-21-2013 |
20130114521 | NETWORK NODE, USER EQUIPMENT AND METHODS THEREIN - A method in a network node for transmitting an enhanced Control CHannel, eCCH, to a user equipment in a telecommunications system. The eCCH comprises control information to the user equipment in at least one Control Channel Element, CCE. The at least one CCE maps to a number of resource elements comprised in at least one enhanced resource element group. The at least one enhanced resource element group is comprised in at least one resource block in a time-frequency Orthogonal Frequency Division Multiplexing, OFDM, grid. The network node decides to use a CCE aggregation level that is smaller than the smallest CCE aggregation level of a physical downlink control channel, PDCCH, for a first eCCH. The network node then modulates the first eCCH by using a higher order modulation than Quadrature Phase Shift Keying, QPSK, modulation, when the smaller CCE aggregation level is used for the first eCCH. Then, the network node maps the modulated first eCCH to the at least one enhanced resource element group of resource elements in the at least one resource block, and transmits the mapped first eCCH to the user equipment. A network node, a method in user equipment and a user equipment are also provided. | 05-09-2013 |
20130114522 | Network Node, User Equipment and Methods Therein - A method in a user equipment device for estimating a channel upon receiving an enhanced control channel (eCCH) from a network node in a telecommunications system includes distributing the eCCH over multiple resource pairs, where each of the multiple resource block pairs includes a number of resources. Each of the resources is associated with a respective antenna port. The user equipment device identifies an antenna port that is associated with multiple ones of the resources. The multiple ones of the resources are present in different resource block pairs of the multiple resource block pairs over which the eCCH is distributed. Identifying the antenna port is based on how the eCCH is mapped to the multiple resource block pairs. The user equipment device estimates the downlink channel for the eCCH based on the identified antenna port in the multiple ones of the resources in the multiple resource block pairs. | 05-09-2013 |
20130128828 | Compromise Resource Allocation Field Size When Aggregating Component Carriers of Differing Size - Methods and arrangements for resource allocation in a telecommunication system in which aggregation of component carriers is applied. The size of the resource allocation field is determined based on the transmission bandwidth of a selection of component carriers. The selection of component carriers comprises the component carrier on which the resource allocation message is monitored and the component carriers which are cross-scheduled from said component carrier. The resource allocation message comprising the resource allocation field with the determined size is transmitted to the user equipment over a particular component carrier of the selection of component carriers. Furthermore, with only one size of the resource allocation field a smaller number of code word sizes needs to be monitored by the UE. This leads to a smaller number of blind decodings performed in the UE. The present invention enables a more tailored approach when determining the size of the resource allocation field to avoid too high overhead but also a too coarse resource allocation. | 05-23-2013 |
20130136108 | Base Station, User Equipment and Methods Therein for Control Timing Configuration Assignment in a Multiple Cell Communications Network - Example embodiments presented herein are directed towards a base station and method therein, for configuring control timing to and from a user equipment in a multiple component cell communications network. Example embodiments presented herein are also directed towards a user equipment and method therein, for configuration of control timing for a user equipment in a multiple component cell communications network. | 05-30-2013 |
20130250923 | BANDWIDTH ADAPTIVE REFERENCE SIGNALS - Systems and methods for providing bandwidth adaptive reference signals are disclosed. In one embodiment, a wireless device receives a downlink signal from a base station in a cellular communication network on a corresponding downlink carrier, where a number of time domain units per frame in the downlink signal that carry reference symbols is determined based on, or is otherwise a function of, a system bandwidth of the downlink carrier. In addition, in some embodiments, a number of frequency domain units that carry reference symbols is also a function of the system bandwidth of the downlink carrier. The wireless device processes the reference symbols to provide one or more desired features such as, for example, synchronization, radio resource management measurements, channel estimation, or the like. | 09-26-2013 |
20130265944 | RADIO NETWORK NODE, USER EQUIPMENT AND METHODS THEREIN - Embodiments herein disclose a method in a user equipment ( | 10-10-2013 |
20140241197 | POWER HEADROOM REPORTING FOR CARRIER AGGREGATION - Power headroom reporting and report handling are discussed in the context of a Physical Uplink Shared Channel (PUSCH), on which a user equipment (UE) has no valid uplink grant, and a Physical Uplink Control Channel (PUCCH) on which a UE has no transmission. Under these circumstances, it is not possible to directly calculate one or more parameters which are used to calculate power headroom. Accordingly, exemplary embodiments provide for predetermined, known values to be used by the UE to calculate the power headroom, and by the eNodeB to understand the meaning of a received power headroom report. | 08-28-2014 |
20140369308 | METHOD AND DEVICE FOR DETERMINING A NUMBER OF MIMO LAYERS - The embodiments herein relate to a method in a base station for communicating with a user equipment in the communication network. The base station is configured to communicate with the user equipment according to a selectable of at least two user equipment categories. Based on information about a selected user equipment category, the base station determines a first number of maximum transmission layers supported by the base station. The base station communicates with the user equipment according to up to the determined first number of maximum transmission layers and according to the selected user equipment category. | 12-18-2014 |