Aspects of the present disclosure can be implemented in a method for wireless communication by a first wireless node, such as a user equipment (UE) or network entity. The method generally includes identifying different patterns of phase tracking reference signal (PTRS) tones for receiving a PTRS, determining when to change at least one of the different patterns of the PTRS tones from one symbol to another, and monitoring for one or more symbols of the PTRS, from a second wireless node, according to the determination.

Provided is a method and apparatus for using an offset between a synchronization signal block and a resource block grid. The method may include receiving, by a user device, a synchronization signal (SS) block comprising a synchronization signal and a physical broadcast channel (PBCH), determining, from the PBCH, a value of a subcarrier offset between the SS block and an RB grid, determining, based on the value of the subcarrier offset and a frequency location of the SS block, the RB grid, and decoding, based on the determined RB grid, one or more of a reference signal, a control channel, or a data channel.

A synchronization signal design is described for narrowband Internet of Things Communications. The synchronization signals facilitate time and frequency synchronization between an eNB and UEs. In one example, operations include generating an NB-Iot Secondary Synchronization Signal (N-SSS) using a Zadoff-Chu (ZC) sequence, scrambling the ZC sequence using a scrambling sequence, and transmitting the resulting scrambled NB-Iot Secondary Synchronization Signal (N-SSS) by the eNB in a periodic manner, wherein, the eNB has a cell identifier and the cell is identified by a combination of the root of the ZC sequence and the scrambling sequence.

The disclosure of the present invention proposes a method for connecting to a base station. The method may be performed by a user equipment (UE) and comprise: receiving information on a UE-specific bandwidth of a first cell. Here, the UE-specific bandwidth of the first cell is variable based on a bandwidth of a second cell using long term evaluation (LTE) radio access technology (RAT). The information on the UE-specific bandwidth may indicate a bandwidth between a bandwidth between a minimum bandwidth and a maximum bandwidth.

Methods, apparatuses, and systems for wireless communications are described. Uplink signals may be time aligned based on different synchronization signals as a timing reference for different carrier groups. A base station may send, to a wireless device, a time alignment command comprising: an indication of a carrier group index, and a time adjustment value. Based on the time alignment command, the wireless device may send second uplink signals.

Technology for a user equipment (UE) configured for communication of sounding reference signal (SRS) resources is disclosed. The UE can decode a radio resource control (RRC) signal indicating an SRS to transmit with a physical uplink control channel (PUCCH), wherein the PUCCH and the SRS are quasi co located (QCLed) based on a spatial received parameter. The UE can encode an SRS for transmission using the spatial received parameter. The UE can encode uplink control information (UCI) for transmission in the PUCCH using the spatial received parameter. The UE can have a memory interface configured to send to a memory the spatial received parameter.

Provided are a preamble symbol receiving method and device, characterizing in that the method comprises the following steps: processing a received signal; judging whether the processed signal obtained contains the preamble symbol desired to be received; and if a judgement result is yes, determining the position of the preamble symbol and resolving signalling information carried by the preamble symbol, wherein the received preamble symbol comprises at least one time-domain symbol generated by a transmitting end using a free combination of any number of first three-segment structures and/or second three-segment structures according to a predefined generation rule, the first three-segment structure containing: a time-domain main body signal, a prefix generated based on the entirety or a portion of the time-domain main body signal, and a postfix generated based on the entirety or a portion of a partial time-domain main body signal, and the second three-segment structure containing: the time-domain main body signal, a prefix generated based on the entirety or a portion of the time-domain main body signal, and a hyper prefix generated based on the entirety or a portion of the partial time-domain main body signal.

Base station and UE and methods therein for broadcast in a wireless communication network. The method in the base station comprises determining (1201a-c) a set of transmission resources, out of a number of sets of transmission resources, based on a property associated with a synchronization signal of the base station, and further transmitting (1202a-c) the synchronization signal and/or system information, such as a MIB, in the determined set of transmission resources.

The present invention relates to a method and an apparatus which enable a terminal to transmit a signal for device-to-device (D2D) communication in a wireless communication system. Specifically, the present invention transmits a synchronization signal for D2D communication and a demodulation reference signal (DM-RS) for demodulation of the synchronization signal, wherein the base sequence of the demodulation reference signal is generated using a synchronization reference ID.

A method for transmitting synchronization information and synchronization related information in a wireless communication system, includes mapping the synchronization information to a physical resource; mapping the synchronization related information to the physical resource; and transmitting, to a user equipment (UE), the synchronization information and the synchronization related information, wherein the synchronization information is mapped to fewer subcarriers than the synchronization related information.