Abstract:
There is provided a method comprising providing, in dependence on a first subcarrier spacing of a first subframe structure, a second subcarrier spacing of a second subframe structure, wherein the first subframe structure has a first subframe length and at least one first cyclic prefix length and providing a second subframe length of the second subframe structure, the second subframe length comprising m symbols, wherein each symbol contains a second cyclic prefix, the second cyclic prefix length modified by a length variant.
Abstract:
A technique may include sending, by a base station to at least one user device, a signal indicating a configuration of at least one guard period, wherein the at least one guard period is provided between subframe portions of a same link direction. According to an example implementation, the at least one guard period may include one or more of: at least one first guard period provided between subframe portions of a same link direction within a subframe, and at least one second guard period provided between subframe portions of a same link direction of different subframes.
Abstract:
Apparatus and method for signalling are provided. The solution includes reserving resources for communication of a set of nodes (114, 116, 118) organized into one or more scheduling groups having a predetermined group identity, each node in a scheduling group having a unique identity. Scheduling messages are transmitted to all nodes, the messages including the group identity designating the scheduling group the message is intended, an information element indicating identity of the node allowed to transmit, a bitmap indicating identities of nodes instructed to receive, and information on parameters needed to transmit and receive data utilizing the resources allocated for communication.
Abstract:
A method comprises receiving a reference signal from a first node, estimating channel information from said received reference signal, and causing a signal to be transmitted to said first node, said signal comprising a reference signal and information dependent on said channel information.
Abstract:
It is described a method for controlling a modulation and coding scheme for a transmission between a base station and a user equipment, wherein the modulation and coding scheme is selectable based on a first modulation and coding scheme table including entries corresponding to a plurality of modulation and coding schemes with a first maximum modulation order or based on a second modulation and coding scheme table including entries corresponding to a plurality of modulation and coding schemes with a second maximum modulation order. The method comprises selecting, by the base station, the first modulation and coding scheme table or the second modulation and coding scheme table, and controlling, by the base station, the modulation and coding scheme for the transmission between the base station and the user equipment based on the selected modulation and coding scheme table.
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:
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:
Disclosed are a method and a corresponding apparatus relating to wireless telecommunication systems and more particularly to efficient resource allocation schemes supporting transmission of multiple periodic channel state information (CSI) reports on the physical uplink control channel (PUCCH) during the same subframe while maintaining single carrier properties of the transmitted signal. The method includes determining that at least two reports to be transmitted on an uplink resource collide with respect to the uplink resource, applying at least one resource selection policy to the at least two reports and selecting a resource to be used for transmitting a plurality of the at least two reports.
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:
There is provided a method comprising, in an antenna array comprising a plurality of antenna elements for use in a multiple-input multiple-output system, using at least one receiver for reception of at least one first signal by at least one of the plurality of antenna elements and using at least one first transceiver for at least one of transmission and reception of at least one second signal by at least one of the plurality of antenna elements, wherein the at least one receiver operates using at least one of a lower accuracy and a narrower bandwidth relative to the at least one first transceiver.