Abstract: Frame structures and signaling arrangements for interference aware scheduling may be applicable to a local area radio system to complement existing wide area cellular systems, like GSM/UMTS/HSPA/LTE. In certain embodiments a method is provided including preparing a frame for transmission in a wireless communication system. The method can also include incorporating an interference report into the frame. The interference report is directly associated with a corresponding resource. The method can further include transmitting the interference report within the frame in the wireless communication system.

Abstract: Systems and techniques for synchronization between in-coverage and out-of coverage user devices. A base station configures in-coverage and out-of coverage synchronization signals and configures user devices to recognize synchronization signals as in-coverage or out-of-coverage. An in-coverage device furnishes an in-coverage synchronization signal upon detection of an out-of coverage signal, and may continue to furnish the signal upon continued detection of an out-of-coverage signal that is not synchronized to the network. An out-of-coverage device may receive and synchronize to an in-coverage signal if available, or an out-of-coverage signal if available, or may generate and transmit its own out-of-coverage signal if no in-coverage or out-of-coverage signal is available.

Abstract: Systems and techniques for managing the use of discovery resources in device to device communication-capable devices. A message is configured for transmission to one or more user devices by a base station to indicate permission or denial of discovery resources, and based on the message, one or more of the user devices receiving the message uses, or is inhibited from using, the resource. Indication of permission or denial may, in various embodiments designate all discovery resources in general, specific resources assigned to groups and allocated to a specific user device, or groups of resources, with permission or denial relating to all members of a group.

Abstract: The exemplary embodiments provide at least a method for receiving from a serving access node information of communications of at least one other access node, the information comprising interference conditions of at least one distributed enhanced physical downlink control channel set used by the at least one other access node, and the communications comprising transmissions from two or more antenna ports of the at least one other access node, estimating different interference conditions with respect to communications from different antenna ports of the two or more antenna ports based on the information; and using an enhanced receiver based on the estimated at least two different interference conditions. Further, the exemplary embodiments provide at least determining by a serving access node information of interference conditions of at least one distributed enhanced physical downlink control channel set used by at least one other access node; and sending towards user equipment the information.

Abstract: A method and apparatus for re-interpreting channel state information are provided, which relate generally to wireless communications, and more specifically are directed toward the use of channel state information/channel quality indications in a wireless network. The apparatus includes at least one processor and at least one memory including computer program code.

Abstract: Improved mechanisms for using enhanced physical downlink control channel (EPDCCH) and enhanced physical hybrid indicator automated repeat request indicator channel (EPHICH) resources are described. A physical resource block (PRB) of an EPDCCH is specified and one or more EPHICH code blocks, which may also be referred to as an EPHICH resource element group (EPREG), are defined. One or more of the EPREGs is mapped into the EPDDCH PRB.

Abstract: A method and apparatus for a transmission mode with user equipment (UE) independent physical downlink shared channel (PDSCH) scrambling for inter-cell and intra-cell PDSCH-to-PDSCH interference cancellation. A method may include configuring (610) a first identifier (e.g. first RNTI) for a first UE. The method may also include performing at least one of indicating (620) (e.g. semi-statically) a second identifier (e.g. PDSCH RNTI own) for the first UE, or indicating (630) (e.g. semi-statically) a third identifier (e.g. PDSCH RNTIJnt) for the first UE. The first identifier (e.g. first RNTI) is for at least one of operation of physical downlink control channel (PDCCH) of the first UE, or operation of PDSCH of the first UE if the second identifier (e.g. PDSCH RNTI own) is not indicated to the first UE; the second identifier (e.g. PDSCH RNTI own) is for at least one of scrambling or descrambling PDSCH of the first UE; and the third identifier (e.g.

Abstract: A method for coverage enhancement is described. The method includes determining a DCI assignment for a communications device experiencing limited coverage. A DCI assignment includes a plurality of configuration fields. Selecting an indication of the DCI assignment is included in the method. The indication of the DCI assignment uses fewer resources than the DCI assignment. The method also includes sending the indication of the DCI assignment to the communications device. The communications device receives the indication of a DCI assignment. The method also includes determining, by the communications device, the DCI assignment for the communications device based at least in part on the indication of the DCI assignment.

Abstract: Systems, methods, apparatuses, and computer program products for a signaling arrangement for a wireless system are provided. One method includes transmitting a short control signaling (SCS) message to one or more user equipment (UE). The SCS message may comprise at least a reference signal part and an optional control signal part. The reference signal part may comprise reference signals that allow the UE to perform at least one of: cell search, synchronization, fine time/frequency tracking, radio resource management (RRM) measurements, radio link monitoring, or channel state information (CSI) reporting. In an embodiment, the control signal part may indicate at least one of: whether the cell is ON or OFF, whether each subframe in a current or upcoming set of subframes are ON or OFF, TDD uplink-downlink configuration for a current or upcoming radio frame, PLMN ID to identify to which operator's network the cell belongs to, and/or system information.

Abstract: Various communication systems may benefit from codebook methods and devices for multiple transmitters. For example, a codebook for four transmitters (4Tx) may provide further enhancement for downlink multiple-input multiple-output (DL-MIMO) systems. A method can include weighting a signal for transmission based on a precoder selected according to a feedback from a codebook, such as codebooks A, B, C, D, or E, described herein. The method can also include sending the weighted signal.

Abstract: Communication systems in which a fixed size information block is transmitted to one or multiple receivers, such as the long term evolution (LTE) of the 3rd Generation Partnership Projection (3GPP), may benefit from a structure, in which a downlink control information (DCI) format, or more generally the fixed sized information block, can be extended by a small number of bits and still be backwards compatible with older terminals, which do not need the extra bits or may not even be aware of this extension. A method for providing this extension can include preparing a first codeword for transmission. The method can also include preparing a second codeword for transmission. The second codeword can have a code rate that is configured to be less than the code rate of the first codeword. The method can further include initiating simultaneous transmission of the first codeword and the second codeword.

Abstract: The exemplary embodiments of the invention relate to at least a method and apparatus to perform determining, at a user device, an initial signal power of a cell specific reference signal and a signal power for each reference signal of at least one reference signal in a network; identifying a change as compared to at least one of the initial signal power of the cell specific reference signal and the at least one reference signal; and based on the identifying, triggering another determining of a signal power of reference signals of the at least one reference signal in the network.

Abstract: Systems and techniques for joint transmission cooperative multi-point. A set of n CSI reference signal resources are to be measured by a user device. The n CSI reference signal resources include at least one CSI reference signal resource spanning over at least two transmission points. Channel state information feedback corresponding to each CSI reference signal resource is configured. Upon receiving CSI from the user device, at least one precoder is selected for coherent joint cooperative multipoint transmission based on inter-transmission point phase relationship information. A co-phasing factor is derived from transmitted precoders over a cross-cell CSI reference signal resource, the derivation including transmission of reference signals using first and second precoding vectors on two ports, computation of a third vector using feedback based on the precoded reference signals, and computation of the co-phasing factor based on the first, second, and third vectors.

Abstract: A network determines that a first radio node communicating on a radio resource with a second radio node is interfering with a third radio node communicating on the radio resource with the network. The network manages the interference by controlling transmit power of at least one of the first radio node and the third radio node. It may be by sending a command that indicates an amount by which the first or second radio node is to decrease its transmit power; and/or that indicates an amount by which the third radio node is to boost its transmit power. The network can measure a sounding signal it triggers from the first radio node, measure and compare to a threshold that guarantees a QoS for the third radio node, and compute appropriate backoff or boost values. The first and second radio nodes may be using device-to-device communications or a femto network.

Abstract: A method and apparatus for re-interpreting channel state information are provided, which relate generally to wireless communications, and more specifically are directed toward the use of channel state information/channel quality indications in a wireless network. The apparatus includes at least one processor and at least one memory including computer program code.

Abstract: A method and apparatus may be configured to monitor a first channel allocated to proximity-based services within a cluster. The method may also include transmitting, if the user device is not receiving transmissions on the first channel, an indication that the receiving user device is not receiving transmissions on the first channel allocated to the proximity-based services within the cluster. The method may also include receiving an indication of a second channel allocated to the proximity-based services within the cluster.

Abstract: Systems, methods, apparatuses, and computer program products for D2D cluster communication and configurations are provided. One method comprises receiving, at a first cluster head, information of a second cluster head; determining, based on the received information, a possible establishment of inter-cluster relationship with the second cluster; selecting a user equipment of at least one user equipment associated with the first cluster head, based on the received information, to relay information between the first cluster head and the second cluster head; indicating to the selected user equipment of at least one user equipment associated with the first cluster head to relay information between the first cluster head and the second cluster head; and negotiating, via the selected user equipment, an inter-cluster relationship with the second cluster head, wherein the second cluster head is associated with another user equipment for a device-to-device communication.

Abstract: A method includes receiving information indicating one or more sets of reference signal patterns from a first transmission point, wherein at least one of the indicated one or more sets of reference signal patterns corresponds to one of one or more other transmission points; measuring the channel quality for the indicated sets of reference signal patterns; and reporting indications of the measured channel quality for the indicated one or more sets of reference signal patterns to the first transmission point. Another method includes transmitting information indicating one or more sets of reference signal patterns from a first transmission point to a user equipment, wherein at least one of the indicated one or more sets of reference signal patterns corresponds to one of one or more other transmission points; and receiving from the user equipment indications of measured channel quality for the indicated one or more sets of reference signal patterns.

Abstract: Methods, apparatuses, and computer programs for providing a flexible frequency location for a backwards compatible carrier in a communication system are provided. Embodiments of the invention enable a backwards compatible carrier segment supporting all or a subset of legacy LTE Release transmission modes to be located at an arbitrary position on the system bandwidth (BW) through a cyclic extension of reference signals, such as channel state information reference signals (CSI-RS), and/or other resource element configurations, such as interference measurement reference signals (IMRS), required for supporting PDSCH operation outside the backwards compatible carrier segment.

Abstract: A network signals an allocation (PDCCH) for a downlink shared channel (PDSCH); and also signals an indication (reference signal RS) whether a resource block (PRB) comprising the allocated downlink shared channel is used for a control channel transmission (E-PDCCH). Examples include the E-PDCCH being time or frequency multiplexed with the PDSCH; and the indication being a different RS sequence (at least one element being phase shifted) than an original RS sequence used if the PRB were not used for the E-PDCCH. The UE tests for the phase shift by blind decoding. If the phase shift is present the UE a) decodes a portion of the PRB for data if the network is using TDM for its E-PDCCH/PDSCH multiplexing, orb) decodes the full PRB only for the E-PDCCH if the network is using FDM for its E-PDCCH/PDSCH multiplexing.