Embodiments disclosed herein include systems and methods for locating all synchronization signal blocks on a 5G new radio channel. Such systems and methods can include measuring downlink signal energy over a bandwidth of the 5G new radio channel to identify a center frequency of a signal broadcast on the 5G new radio channel, processing the signal at the center frequency of the signal to identify a first of a plurality of synchronization signal blocks and global OFDM symbol boundaries for the wireless radio channel, and using the global OFDM symbol boundaries for all raster frequencies of the 5G new radio channel to identify remaining ones of the plurality of synchronization signal blocks.

Aspects of the present disclosure describe discovering physical cell identifiers in wireless communications. It can be determined to discover a physical cell identifier of one or more cells in a zone based at least in part on detecting a condition. A cell-specific signal can be received from at least one cell of the one or more cells in the zone. The cell-specific signal can be associated with one of a plurality of cell-specific signal hypotheses. The physical cell identifier of the at least one cell can be determined as one of a plurality of physical cell identifiers that corresponds to the one of the plurality of cell-specific signal hypotheses.

One embodiment of the present invention relates to a method for transmitting a signal from a device-to-device (D2D) terminal in a wireless communication system, which is a signal transmission method comprising: generating a reference signal sequence; mapping the reference signal sequence on specific symbols; and transmitting a signal comprising the reference signal sequence, wherein the specific symbols are shifted n and m symbols, respectively, away from the fourth symbol of each slot toward a time axis.

There is disclosed a method for operating a network node in a wireless communication network. The method comprises configuring a D2D device for D2D operation based on a D2D schedule or resource allocation such that D2D operation, and/or switching between cellular operation and D2D operation and/or vice versa, of the D2D device doesn't overlap with cellular synchronization signals, and/or with DL subframes that can be used for cell search by the D2D device, and/or with DL subframes in which synchronization signals are transmitted.

The present disclosure also pertains to related devices and methods.

The present disclosure provides a method of measuring a small cell based on a discovery signal. The method may include the step of receiving a discovery signal measurement timing configuration (DMTC) for a neighboring small cell. In this step, the DMTC may include DMTC periodicity information and information on a discovery signal occasion section. The information on the discovery signal occasion section may indicate one or more sub-frames in which the discovery signal occurs. The method may include the step of measuring the neighboring small cell for a measurement gap in the case where the neighboring small cell operates at a frequency that is different from a serving cell.

The present application is at least directed to an apparatus on a 5G network. The apparatus includes a non-transitory memory including instructions stored thereon for performing configuration of an initial access signal in the 5G network. The apparatus also includes a processor, operably coupled to the non-transitory memory, capable of executing an instruction of monitoring transmission of a downlink sweeping subframe including a beam sweeping block carrying a downlink initial access signal. The processor is capable of also executing the instruction of detecting the downlink initial access signal carrying a synchronization channel. The processor is capable of also executing the instruction of determining, based on the synchronization channel, an identity of the beam sweeping block associated with the downlink initial access signal. The present application is also directed to an apparatus configured to perform downlink synchronization of a cell in the 5G network.

A perturbation is made to contents and/or locations in time and frequency of Reference Signals (RS) transmitted by a cell, such that the perturbation implies information regarding a capability or configuration of the cell as regards availability or configuration of a network functionality, for example facility to offer a narrowband virtual carrier operation. The contents and/or locations in time and frequency of the reference signals used are typically based on the physical cell identity (PCI). In certain embodiments the PCI carried by some identifiable RS resources is changed: in others, the RS is transmitted in unexpected resources. The network functionality configuration information is inferred from the various relationships between these transmissions and the cell's actual PCI and/or expected RS transmission resources.

Disclosed are a method and an apparatus for a cell to discover another cell. A method for cell discovery by a discovering cell may comprises the step of: the discovering cell receiving first discovering resource configuration information from a master cell; and the discovering cell receiving a discovering signal from at least one discovering target cell on the basis of the first discovering resource configuration information, wherein the first discovering resource configuration information may comprise information indicating a first time resource for the discovering cell to receive a discovery signal by means of a first frequency band, and information indicating a second time resource for the discovering cell to transmit downlink data to a terminal by means of the first frequency band.

Embodiments of the present invention are directed to a method and apparatus for transmitting and receiving a control signal (for example, PDCCH signal) in an asymmetric multicarrier environment. The method for transmitting a control signal for an asymmetric multicarrier in a wireless connection system according to one embodiment of the present invention comprises: determining the size of a carrier indicator field (CIF) indicating a downlink component carrier (DL CC) by which downlink data is transmitted, on the basis of a maximum value of the number of DL CCs and of the number of uplink component carriers (UL CCs) being managed in a base station; transmitting the CIF on a 1.sup.st DL CC to a terminal through a physical downlink control channel (PDCCH); and transmitting downlink data on a 2.sup.nd DL CC indicated by the CIF to the terminal through a physical downlink shared channel (PDSCH).

A user terminal apparatus is disclosed that is able to communicate with a base station apparatus in a given radio access scheme and detects the base station apparatus and/or a different communication apparatus from the base station apparatus, the user terminal including: a receiving circuit that receives signals from the base station apparatus and/or the communication apparatus, in the given radio access scheme, using subframes of a given demodulation reference signal configuration; and a transmission circuit that transmits signals to the base station apparatus and/or the communication apparatus, in a same radio access scheme as the given radio access scheme, using subframes of a same demodulation reference signal configuration as the given demodulation reference signal configuration.