Patent application number | Description | Published |
20130286907 | SHORTENED SUBFRAME FORMAT FOR FDD - A method includes determining one of a multiplicity of subframes in a resource space in which a shortened subframe is to be communicated. Each of the subframes has a predetermined number of symbol positions. The resource space includes the multiplicity of subframes. The method includes communicating the shortened subframe in the determined subframe. The shortened subframe has a multiplicity of active symbols at first symbol positions in the determined subframe and has a multiplicity of blanked symbols at second symbol positions in the determined subframe. In an embodiment, each of the subframes is a first subframe carried on subcarrier. The resource space corresponds to a special subframe in a frame including the special subframe and a multiplicity of second subframes. The special subframe and the plurality of second subframes are located in different timeslots. Apparatus, computer programs, and program products are also disclosed. | 10-31-2013 |
20130343356 | METHOD AND APPARATUS FOR CONFIGURATION OF SPECIAL SUBFRAME PATTERN CONFIGURATION - A method is provided for configuration of a special subframe pattern configuration. The method may include determining a configuration of a primary special subframe pattern configuration. The first special subframe configuration may have a corresponding secondary special subframe pattern configuration for multiplexing with the primary special subframe pattern configuration. The method may further include, responsive to a downlink assignment following the configuration of the primary special subframe pattern configuration, using the secondary special subframe pattern configuration instead of the primary special subframe pattern configuration. A corresponding apparatus and computer program product are also provided. | 12-26-2013 |
20140071922 | METHOD AND APPARATUS FOR CONFIGURING A SOUNDING REFERENCE SIGNAL FOR A SEGMENT CARRIER - Methods, apparatus and computer program products configure a sounding reference signal (SRS) for a segment carrier that serves as a contiguous bandwidth extension of a component carrier, such as a component carrier that is backwards compatible with prior releases of a mobile terminal. In the context of a mobile terminal, the method receives a triggering message that identifies respective configurations of the SRS for the component carrier and the associated segment carrier. The configuration of the SRS for the component carrier is different than the configuration of the SRS for the segment carrier. The method also causes the SRS to be transmitted in accordance with the respective configurations identified by the triggering message via uplink subframes of the component carrier and the segment carrier. | 03-13-2014 |
20140087748 | Methods and Apparatus for Managing Wireless Communication Using Unlicensed Frequency Bands - Systems and techniques for managing the use of industrial-scientific-medical bands for cellular network communication. An apparatus comprises a processing system and a memory storing a set of program instructions. The processing system is configured to cause the apparatus to receive channel information from a UE reporting the control of an industrial-scientific-medical (ISM) band channel by the UE and cause the apparatus to schedule a communication session with the UE over the channel, with the channel being configured and activated as an ISM secondary component carrier (SCC). The apparatus may further request one or more user equipments (UEs) to report their wireless fidelity (WiFi) capability and request user equipments having WiFi capability to compete for the wireless medium and report occupation of the wireless medium in the form of a request to send command, to which the apparatus responds with a clear to send command. | 03-27-2014 |
20140098774 | 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. | 04-10-2014 |
20140148187 | A METHOD FOR OBTAINING A TIMING ADVANCE VALUE - Timing control procedure is needed for uplink transmissions in several communication networks. Some networks and bands have physical and regulatory limitations for obtaining timing advance value in conventional manner. One example of these limitations is disabled downlink channel in TV white spaces. The present invention provides an arrangement for obtaining timing advance value in a situation wherein the use of downlink channel is disabled. | 05-29-2014 |
20140160967 | Interference Control in Time Division Duplex Communication - There are provided measures for interference control in time division duplex communication. Such measures may exemplarily comprise setting up a predefined uplink-downlink configuration of a frame structure for time division duplex communication, said frame structure comprising a predefined number of downlink subframes, deriving measurement groups from the frame structure according to a measurement configuration, said measurement configuration defining a set of all downlink subframes of the frame structure or at least two subsets of the downlink subframes of the frame structure, each of said measurement groups comprising a set of subframes out of the downlink subframes of the frame structure, and performing an interference measurement for the downlink subframes of at least one of the measurement groups. | 06-12-2014 |
20140161001 | Resource Allocation for Flexible TDD Configuration - There is determined a first uplink-downlink configuration for subframes in a frame, which in various examples is fixed or dynamically allocated. A second uplink-downlink configuration is semi-statically allocated such as in system information. When mapping automatic repeat request signaling for a first user equipment which is dynamically allocated an uplink-downlink configuration, at least some downlink subframes mapped by the second uplink-downlink configuration are excluded by the mapping. In one example, UL resources mapped from a first group DL subframes are indexed according to the second configuration, and then UL resources mapped from a second group of DL subframes are indexed according to the first configuration, and the excluded DL subframes are within the first group and excluded from the second group and the automatic repeat request signaling is in an uplink resource mapped from the second group. | 06-12-2014 |
20140233439 | 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. In one embodiment the configuration selection is autonomous, and may be made to maximize throughput in the cell or to minimize a number of subframes that overlap with neighbor cells. In another embodiment there is a cooperation; one access node selects multiple candidate configurations which its neighbor cells score for their own acceptability and return the score tables to the original access node, who makes the final selection using the neighbors' score tables. Specific examples are in the context of the E-UTRAN/LTE system. | 08-21-2014 |
20140269456 | Method, an Apparatus and a Computer Program Product for Flexible TDD Configuration - The invention relates to the radio interface between an apparatus for wireless communication and a network element, comprising flexible uplink/downlink configuration for time division duplex. The method comprises detecting a parameter indicating interference in a subframe of a time division duplex configuration; assigning a priority Physical Resource Block set for a flexible subframe; and scheduling the connection for a wireless apparatus according to the priority Physical Resource Block set. | 09-18-2014 |
20140307694 | Uplink Transmissions and Grants in Extension Carrier - A user equipment UE is configured with an integer value N which defines an effective data rate. The network sends to the UE a grant for uplink transmissions that comprises a resource indication field that allocates N channels each having a same predetermined uplink format and payload capacity. The UE sends N bit sequences on the respective N channels, each bit sequence comprising data and the same predetermined uplink format. In various embodiments: the network specifically configures the UE to receive the predetermined format of the grant; the grant may have an indicator whether the channels are for new data and for the MCS to use; the N channels may be in a same or in adjacent sub frames regardless of the value of N; and there is one MAC header for all the N channels which the network reads as a single MAC PDU. | 10-16-2014 |
20140321336 | Method and Apparatus for Access Point Communications - A method, apparatus and computer program product are provided according to some example embodiments to enable the exchange of inter cell messages among neighboring access points. In this regard, a method is provided that includes receiving a request for transmission of an inter cell (IC) message that is to be transmitted to a neighboring access point. The request for transmission further comprises scheduling information from the access point. The method further includes receiving an indication of scheduling priority from the neighboring access point. The method further includes receiving an uplink (UL) grant for the neighboring access point in response to a scheduling request (SR) transmitted to the neighboring access point. The method further includes causing the IC message to be (SR) transmitted to the neighboring transmitted to the neighboring access point. | 10-30-2014 |
20140328306 | Methods and Devices Enabling Resource Sharing for Device-to-Device Communication in Unlicensed Band - The invention proposes a device, comprising a transceiver module, configured for communication on a first and at least one second band, the first band being reserved for communication using a specific communication standard, the second band being accessible for communication using different communication standards, and a control module, configured to control the transceiver module to receive and to transmit data, and to process received data. In one aspect, the control module is configured to request communication resources in the second band from another device using a first type of request, allocate said resources in the second band for communication upon receipt of a resource allocation confirmation from said another device, and to communicate using at least a part of the allocated resources in the second band A corresponding network device as well as related methods and computer program products are also disclosed. | 11-06-2014 |
20140348040 | Semi-Full-Duplex Single-Carrier Transmission Technique - There are provided measures for enabling a semi-full-duplex single-carrier transmission technique. Such measures may exemplarily comprise classifying each one of served terminals into one of two transmission groups, assigning an uplink-downlink configuration of a frame structure for time division duplex communication for each one of the two transmission groups such that uplink subframes for one transmission group and downlink subframes of the other transmission group coincide with each other, and scheduling uplink and downlink transmissions for the served terminals on a single carrier according to the assigned uplink-downlink configurations for the two transmission groups. | 11-27-2014 |
20140376425 | Random Access Channel Enhancement for Carrier Aggregation with Different Uplink/Downlink Configuration - The present invention relates to methods, apparatuses and a computer program product for random access channel enhancement for carrier aggregation with different uplink/downlink configuration. The present invention includes detecting, at a user equipment, a downlink control channel in a specific downlink subframe on a first component carrier, receiving, at the user equipment, a downlink shared channel on the first component carrier, and transmitting, after a predetermined period, a random access channel in a specific uplink subframe on a second component carrier, the specific uplink subframe overlapping the specific downlink subframe on the first component carrier. | 12-25-2014 |
20140376483 | Control Mechanism for Communication Via Different Frequency Bands - There is provided a mechanism for controlling communications conducted via different frequency bands or communication spectrums. When a communication via a first communication path, for example an unlicensed or white space communication spectrum, is to be established, e.g. for offloading traffic from a second communication path, for example a licensed cellular communication spectrum, a preamble transmission command is generated and transmitted from a communication network control element, such as an eNB, via the second communication path to a communication element, such as a UE. By means of the preamble transmission command, the transmission of a preamble signal by the receiving communication element on the first communication path with predetermined communication resources is triggered. Based on a receipt or non-receipt of the preamble signal via the first communication path, the communication network control element is able to determine that the communication element can establish a connection on the first communication path, for example the unlicensed or white space communication spectrum. | 12-25-2014 |
20140378157 | Methods and Apparatuses for Provision of a Flexible Time Sharing Scheme on an Unlicensed Band of a System - A method, apparatus and computer program product are provided facilitating flexible time sharing among systems. A method and apparatus may generate a secondary component carrier transmission plan including planned on and off durations. The planned on durations correspond to a time period for an apparatus and devices to communicate via an unlicensed band of the secondary component carrier. The planned off durations correspond to a time interval in which the devices may deactivate from the unlicensed band or remain disconnected from the unlicensed band. The method and apparatus may also enable provision of the plan to the devices via a licensed band of a primary component carrier and detecting a medium of the unlicensed band prior to the expiration of the time period to determine whether the medium is available in order to decide whether to turn on transmissions to the unlicensed band after one of the planned off durations. | 12-25-2014 |
20150071146 | Aperiodical Discovery Channel Design for Small RRHS - An apparatus and a method is provided by which it is determined that at least one user equipment should perform detection and/or measurements with respect to at least one network control node, the at least one network control node is instructed to send a predetermined aperiodic signal to the at least one user equipment, and the at least one user equipment is instructed to detect the predetermined aperiodic signal. | 03-12-2015 |
20150072687 | METHOD AND APPARATUS FOR FACILITATING A S1 HANDOVER OF A MOBILE TERMINAL THAT HAS EXPERIENCED IN-DEVICE COEXISTENCE INTERFERENCE AT ONE OR MORE FREQUENCIES - A method, apparatus, and computer program product are provided to reduce coexistence interference that may occur following a S 1 handover. The method, apparatus and computer program product may provide the target access point with information regarding one or more frequencies to be avoided so as to reduce instances of coexistence interference that might otherwise occur following a SI handover. | 03-12-2015 |
20150085659 | Method and Apparatus For Offloading Data - A method, apparatus and computer program product are provided for enabling efficient allocation of discovery resources for device to device communications. An example method may comprise establishing a cellular network connection to an access point. The method may further comprise establishing a local area network connection to a user equipment. Additionally, the method may comprise either receiving offloaded data for the user equipment from the access point via the cellular network connection and relaying the offloaded data to the user equipment via the local area network connection, or receiving offloaded data for the access point from the user equipment via the local area network connection and relaying the offloaded data to the access point via the cellular network connection. Similar and related example methods, example apparatuses, and example computer program products are also provided. | 03-26-2015 |