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:
A method for UL control signaling for carrier aggregation, CoMP and/or eICIC is disclosed. The method includes determining whether multiple FB (such as, a plurality of FB each for one channel of a multiple of channels, a plurality of FB regarding one channel (CSI, A/N, etc.), etc. for example) is to be simultaneously transmitted. The multiple FB are related to at least one CA, CoMP and/or eICIC transmission. A RS resource for an UL control signal message is selected. The RS resource includes an indication that the multiple FB is present in the UL control signal message. The method jointly encodes the multiple FB. The UL control signal message including the indication and the jointly encoded multiple FB is transmitted from a UE to a network element. Apparatus and computer readable media are also disclosed.
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: prepare a transmission of a no-acknowledgement message to be conveyed to a node, when a part of a transport block has been received erroneously or an indication of inadequate quality of at least part of the transport block has been obtained.
Abstract:
There is provided a frame structure for a cellular communication system. According to an embodiment, there is provided a first radio frame configuration defining a frame structure of a radio frame comprising at least one sub-frame dedicated only for downlink transmission. There is also provided a second radio frame configuration defining a frame structure of a radio frame comprising at least one flexible special sub-frame configurable as either a flexible downlink sub-frame or as a flexible uplink sub-frame, wherein the flexible downlink sub-frame and the flexible uplink sub-frame both comprise an uplink part and a downlink part, and wherein both the uplink part and the downlink part carry at least one of control information and a reference signal. Amongst a set of radio frame configurations comprising at least the first and second radio frame configuration, a radio frame configuration is selected and a radio signal carrying an information element indicating the selected radio frame configuration is exchanged in order to configure the selected radio frame configuration for use in the cellular communication system.
Abstract:
Systems, methods, apparatuses, and computer program products for signal block mapping are provided. One method includes configuring, by a network node (e.g., base station or eNB), a group of discovery signaling blocks. The method may then include mapping the discovery signaling blocks of the group onto a subframe structure, including the group information into each of the discovery signaling blocks, and transmitting the discovery signaling blocks in the subframe structure.
Abstract:
Systems, methods, apparatuses, and computer program products for signal block mapping are provided. One method includes configuring, by a network node (e.g., base station or eNB), a group of discovery signaling blocks. The method may then include mapping the discovery signaling blocks of the group onto a subframe structure, including the group information into each of the discovery signaling blocks, and transmitting the discovery signaling blocks in the subframe structure.
Abstract:
This document discloses a solution for configuring sub-frames in a cellular communication system. According to an aspect, a method comprises: allocating, in a network node of the cellular communication system, at least one set of available lengths for use in selection of a length of at least one of an uplink control part and a downlink control part of a sub-frame; selecting, in the network node, a length of at least one of the uplink control part and the downlink control part of the sub-frame, the length being selected amongst the at least one set of available lengths, the sub-frame comprising the uplink control part carrying at least one of uplink control information and an uplink reference signal and further comprising the downlink control part carrying at least one of downlink control information and a downlink reference signal; and causing transmission of a message comprising at least one information element indicating the selected length of the at least one of uplink control part and downlink control part of the sub-frame.
Abstract:
A method comprising: measuring separately co-channel interference and cross-channel interference at an apparatus; and providing, to a node, separate information regarding the co-channel interference and the cross-channel interference.
Abstract:
This document discloses a solution for configuring sub-frames in a cellular communication system. According to an aspect, a method comprises: allocating, in a network node of the cellular communication system, at least one set of available lengths for use in selection of a length of at least one of an uplink control part and a downlink control part of a sub-frame; selecting, in the network node, a length of at least one of the uplink control part and the downlink control part of the sub-frame, the length being selected amongst the at least one set of available lengths, the sub-frame comprising the uplink control part carrying at least one of uplink control information and an uplink reference signal and further comprising the downlink control part carrying at least one of downlink control information and a downlink reference signal; and causing transmission of a message comprising at least one information element indicating the selected length of the at least one of uplink control part and downlink control part of the sub-frame.
Abstract:
Systems, methods, apparatuses, and computer program products for an enhanced random access channel (RACH) procedure are provided. One method may include receiving an access request comprising a signature from at least one user equipment. The method may then include providing, to the at least one user equipment, multiple at least partially overlapping resource opportunities for a first scheduled transmission, and performing blind decoding of the first scheduled transmission for the multiple at least partially overlapping resource opportunities.