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 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: 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: 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.

Abstract: This document discloses a solution for configuring sub-frames in a cellular communication system.

Abstract: Systems, methods, apparatuses, and computer program products for a new radio (NR) physical layer arrangement are provided. One method may include receiving, by user equipment, configuration of scheduling request resources on a plurality of resource pools. The method may also include determining a slot type when the user equipment is to transmit a scheduling request in a certain slot, and, based on the determined slot type and the received scheduling request resources configuration, determining whether the user equipment has a scheduling request resource allocated in the plurality of resource pools in the certain slot.

Abstract: A method includes operating a network access node to determine, in cooperation with at least one other network access node, a coordinated scheduling granularity having a plurality of physical resource blocks; and signaling an indication of the determined coordinated scheduling granularity to at least one mobile device served by the network access node for use in enhancing estimation at a receiver of the mobile device, such as when estimating an interference covariance matrix. Apparatus for performing the method is also disclosed, as are mobile device methods and apparatus for receiving and using the signaling.

Abstract: The disclosure relates operation where information of at least one selected resource from a pool of resources for control signals in uplink is signalled in downlink. At least one resource is selected from a pool of resources for control signals in the uplink, where after information of the selected at least one resource is signalled in the downlink. Communication of control signals in the uplink by at least one device is facilitated such that at least one non-selected resource from the pool of resources is used in sending of control signals in the uplink. The at least one resource is implicitly derived in accordance with a predefined rule.

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 of transmitting uplink control signals/status bits from a user equipment, said user equipment having multiple transmit antennae, and said control signals correspond to a plurality of previous downlink transmissions, wherein said control signals are transmitted over a plurality of PUCCH resources and over said multiple antennae, and transmitted during a single uplink sub-frame. Use of multiple PUCCH resources and multiple antennae allow greater spatial diversity.

Abstract: A method comprises defining (401), in a network node (e NB), scheduled downlink carriers from a list of configured downlink carriers. The network node (e NB) defines (401) a downlink assignment index of the scheduled carrier having at least the lowest carrier index from the list of configured carriers, based on a total number of scheduled carriers. The network node (e NB) defines (401) the downlink assignment index for each other scheduled carrier having a higher carrier index from the list of configured carriers. The network node (e NB) transmits (402) to a terminal device (UE) a control message corresponding to each scheduled carrier, the control message indicating a downlink assignment scheduling a physical downlink shared channel, and comprising the defined downlink assignment index. The network node (e NB) receives (405) from the terminal device (UE), uplink control signalling indicating HARQ-ACKs related to physical downlink shared channels corresponding to the scheduled carriers.

Abstract: Apparatus, method, and computer program products relating to operations where information of at least one selected resource from a pool of resources for control signals in uplink is signaled in downlink. At least one resource is selected from a pool of resources for control signals in the uplink, where after information of the selected at least one resource is signaled in the downlink. Communication of control signals in the uplink by at least one device is facilitated such that at least one non-selected resource from the pool of resources is used in sending of control signals in the uplink. The at least one resource is implicitly derived in accordance with a predefined rule.

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.

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: The disclosure relates to subframe bundling in a system where subframe bundling is based on a set of bundling definitions. Control information is provided for at least one communication device configured to provide subframe bundling such that the control information is generated to be at least partially inconsistent with the set of bundling definitions. The control information is signaled to the at least one communication device to adjust the state of subframe bundling and/or size of subframe bundled transmission in accordance with a predefined rule by the at least one communication device. When the device receives the information, is determines that received control information is inconsistent with the set of bundling definitions. In response to the determination, the device can adjust the state of subframe bundling and/or size of subframe bundled transmission.

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: Various communication systems may benefit from signaling that instructs operation of devices. For example, certain wireless communication systems can benefit from signaling of listen-before-talk type for unlicensed spectrum operation. A method can include receiving a mapping between listen before talk type and a set of one or more of downlink ending partial subframe durations. The method can also include receiving indication of at least one downlink ending partial subframe duration of the plurality of downlink ending partial subframe durations. The method can further include determining a listen before talk type based on the received indication and the received mapping. The method can additionally include communicating with at least one access node based on the determined listen before talk type.

Abstract: The present solution discloses a method and apparatus for controlling demodulation reference signal allocation of a user equipment by utilizing a cyclic shift subset determined for demodulation reference signal multiplexing orders supported by the user equipment. Within the cyclic shift subset, demodulation reference signal resources that cause the most significant interference to each other are identified, and cyclic shifts corresponding to the identified demodulation reference signal resources, are linked with as orthogonal complementary multiplexing resources as possible. If more than one cyclic shift subsets are determined for a demodulation reference signal multiplexing order, at least one cyclic shift subset is ignored for said demodulation reference signal multiplexing order.

Abstract: Improved adaptation to a frequency band comprising sub-bands is provided by receiving a coding rate of an error correction coding scheme for encoding modulation symbols to be transmitted on sub-bands of a frequency band in radio communications, determining relative radio channel qualities of the sub-bands of the frequency band, and allocating transmission power between the sub-bands at least on the basis of the relative radio channel qualities of the sub-bands and the received coding rate.

Abstract: A method including receiving at a user equipment first power information for transmitting to a first base station, receiving at the user equipment second power information for transmitting to a second base station, causing said user equipment to transmit to said first base station with a first power less than or equal to a first maximum power dependent on said first power information and causing said user equipment to transmit to said second base station with a second power less than or equal to a second maximum power dependent on said second power information, such that said first and second power does not exceed a total power allowed for said user equipment.

Abstract: Apparatuses and methods for transmission power control are disclosed. A given transmission resource and a first transmission power are determined (202, 204) for transmission. Prior to transmitting on the given transmission resource it is determined (206) whether the resource is occupied or unoccupied. Upon detecting that the resource is occupied, a second, reduced transmission power is determined (210) such that a transmission using the second, reduced transmission power would not render the resource as occupied. The determination of the second transmission power is based at least partially on a predetermined maximum transmission power reduction value. Transmission (212) is done utilising the given transmission resource using the second transmission power according to the determination.