Abstract: A method for network synchronization of a first network element is provided, comprising: receiving, from each of at least two synchronization candidate network elements, a first synchronization accuracy value; determining, for each of the at least two synchronization candidate network elements, a signal quality indicator; determining for each synchronization candidate network element a second synchronization accuracy value based on the signal quality indicator and the first synchronization accuracy value related to the synchronization candidate network element, and selecting a synchronizing network work element, for synchronizing the first network element to, from the at least two synchronization candidate network elements, based on the determined second synchronization accuracy values. The present disclosure enhances the performance of RIB network synchronization by indicating an estimate of an accumulated synchronization error magnitude.

Abstract: There is provided a method for defining at least one channel reservation window the method comprising: setting length for each of the at least one channel reservation window such that each channel reservation window comprises a plurality of sub-frames; dividing the length of each channel reservation window into a transmission part and an idle part, wherein the idle part consists of one or more symbols in one sub-frame; maximizing, at a symbol level accuracy, the length of the transmission part such that a ratio between the length of the idle part and the length of the transmission part fulfils a predetermined criterion; and concatenating the transmission part and the idle part so as to form the channel reservation window.

Abstract: The invention relates to an apparatus including at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: determine a configuration change at a border of a current radio frame and a following radio frame, schedule during the current radio frame physical downlink shared channel and/or physical uplink shared channel resources having an impact on the following radio frame based on the configuration change, and apply hybrid automatic repeat request and signaling timing according to the physical downlink shared channel and/or physical uplink shared channel resource scheduling from a beginning of the following radio frame, wherein a frame carrying the physical downlink shared channel and/or physical uplink shared channel resource scheduling indicates the timing.

Abstract: An apparatus for providing reduced feedback delay may include at least one processor and at least one memory including computer program code. The at least one memory and the computer program code may be configured, with the processor, to cause the apparatus to perform at least selecting a frame format to be applied for configuring transmission and reception of data. The frame format may be selected from options including a downlink only format, an uplink only format and a downlink and uplink format. The apparatus may be further configured for communicating the frame format to a transceiver to enable configuration of the transceiver for transmission and reception of data according to the frame format selected. A corresponding method and computer program product are also provided.

Abstract: Communication systems, for example, wireless communication systems such as long term evolution (LTE) release 11 (Rel-11) may use methods for multiplexing of periodic channel state information reports. Such methods may support the support heavy reliance on channel state information signaling in uplink to provide improved downlink performance. A method can include multiplexing a plurality of channel state information reports into a same subframe. The plurality of channel state information reports can correspond to a user equipment. The method can further include prioritizing a set of channel state information reports including the plurality of channel state information reports.

Abstract: A method including using a precoding code book for controlling transmissions from four antennas of a device, said code book including a plurality of entries, wherein said entries are such that a single layer is mapped to each selected antenna, said code book entries including different antenna pair combinations whereby one or two antenna pairs are selected for transmission.

Abstract: Methods and apparatuses for supporting communication of critical data in a cellular system are disclosed. Upon determination of communication of critical data in a first cell a node of the first cell generates a signal including information of reservation of radio resources for said communication of critical data. The signal is communicated from the first cell to at least one second cell to reduce interference on said radio resources. A node of a second cell receives the signal and manages interference on said radio resources based on the signal. This includes prevention or limitation of use of said radio resources in the second cell when the second cell is not involved in communication of critical data.

Abstract: The specification and drawings present a new method, apparatus and software related product (e.g., a computer readable memory) for implementing power control for uplink orthogonal and non-orthogonal resources for an uplink channel, e.g. for PUCCH or PUCSH, when CoMP is utilized in a wireless network (e.g., LTE).

Abstract: A user equipment (UE) may determine channel state information (CSI) reports with each CSI report being related to a component carrier. The UE may send a subframe with CSI report(s) on a physical uplink control channel (PUCCH). When a collision occurs in the subframe having the CSI report(s) on the PUCCH a lower priority CSI report may be dropped from the transmission.

Abstract: A technique, including in a communication system involving a plurality of access nodes cooperatively detecting a transmission from a communication device, determining at said communication device a transmission power parameter relating to said communication device at least partly on the basis of a plurality of pathloss values including a first pathloss value for a first set of access nodes of said plurality of access nodes transmitting a first reference signal at substantially the same transmission power and a second pathloss value for one or more second access nodes of said plurality of access nodes transmitting a second reference signal at substantially the same transmission power.

Abstract: There is provided a method, an apparatus and a computer program product for selecting at least one extended preamble. The selected extended preamble fulfills certain criteria regarding the cyclic shift-specific timing uncertainty windows and supports for high speeds and high frequencies.

Abstract: The application relates to channel state feedback reporting in wireless communication networks and in particular to modifications of the procedure for reporting CSI as specified by section 7.2 of 3GPP TS 36.213 V10.3.0. and the corresponding RRC protocol as specified by 3GPP TS 36.331 V10.2.0. The current cycle for CSI measurement and reporting is such that the UE performs separate CSI measurements for each report. However, the coverage area of CSI measurement reporting is lower than other uplink reporting such as e.g. ACK/NACK on PUCCH which supports subframe repetition, leading to an imbalance. Therefore, it is rather clear that it is highly beneficial to support coverage extension for CSI reports. The issue then arises as to how to realize the CSI coverage enhancement on top of existing/evolving CSI reporting framework. The application proposes to realize said CSI coverage enhancement by reporting (450) the same CSI report multiple times from the UE (110) to an eNB (220).

Abstract: The invention relates to an apparatus including at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: allocate at least one specific uplink resource for uplink shared channel data to at least one device operable at decreased transmission power and/or bit rate, wherein the at least one specific uplink resource is at least one frequency resource and/or at least one time resource, and wherein the at least one specific uplink resource includes a plurality of reference symbols, and if a plurality of devices are allocated, separate the devices on the at least one specific uplink resource by multiplexing, wherein the multiplexing includes code division multiplexing.

Abstract: A system for determining location information for a wireless device is described. The system includes a UE, a LE and multiple LMUs. The LE sends, to the LMUs, reception instructions with characteristics of the signal transmission from the UE and each LMU receives, from the LE, the reception instructions. The UE sends a signal transmission. Each LMU receives the transmitted signal from the UE, determines locating information based at least in part of the received signal and sends the locating information to the LE. The LE receives the locating information regarding the transmitted signal and determines a location of the UE based at least in part on the received locating information. Methods, apparatus and computer readable media are also described.

Abstract: Apparatuses and methods for providing layered mobility are provided. Small cell eNBs belong to a cluster of local area base stations. A source eNB has a connection with user equipment having a first identity related to the connection and receives from the user equipment a request to send a scheduling request to another local area eNB of the cluster, the request including a list of target candidate eNBs. The source eNB determines suitable target eNB(s) from the list and resources for sending a scheduling request; and transmits The target eNB receives a scheduling request from user equipment allocates and sends communication resources to the user equipment and associates the first identity to the connection with the user equipment.

Abstract: A method and apparatus for controlling retransmissions in multipoint reception is disclosed. In the method it is determined that additional information is needed for decoding of at least one received information block. A procedure is selected for obtaining the additional information from a plurality of options to proceed based on information about predicted result of at least one of the options. In accordance with an aspect an indication of one of a positive acknowledgement of the information block, a negative acknowledgement of the information block and suspension of retransmission of the information block is generated and communicated on a retransmission control channel.

Abstract: An inter-system interference estimation method is disclosed for both primary and secondary radio systems. In the case of a primary system (such as a GSM system), inter-system interference estimation is based on a comparison of cell level measurement statistics before and after secondary spectrum usage in neighboring cells. In the case of a secondary system (such as an LTE system), inter-system interference estimation is based on a measurement on secondary spectrum before starting transmission on the secondary spectrum. Based on both of the above mentioned inter-system inter-cell interference estimations, a cell-level decision on the secondary spectrum usage is made, and optimization of radio resource allocation inside the systems may be carried out.

Abstract: There is provided an method, apparatus for performing the method and a computer program product, wherein the method includes allocating to a terminal device multiple terminal device-specific physical uplink control channel resources for a transmission of a scheduling request from the terminal device, wherein the transmission of the scheduling request comprises multiple physical uplink control channel transmissions taking place on the allocated resources.

Abstract: Resources for reference signalling on at least one component carrier of a plurality of aggregated component carriers can be determined by a station. Information indicative the at least one component carrier and the associated resources is then communicated to another station for configuration of the other station. A trigger is then sent for reference signalling, and in response to the trigger, at least one reference signal is sent from the other station using the indicated at least one component carrier and resources.

Abstract: Apparatus including at least one processor and at least one memory including computer program code the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform: determining at least one control symbol and at least one channel from a channel set for an at least one control symbol representing the at least one control signal for at least one output port; and determining at least one further control symbol and at least one further channel from the channel set for the at least one further control symbol for at least one further output port, wherein the at least one further control symbol and the at least one further channel is dependent on the at least one control symbol and the at least one channel.