Provided is a method of outputting a synchronization signal in a communication node comprising: receiving communication connection information from a terminal, identifying detectable position information of a synchronization signal block (SS block) included in the communication connection information, setting a position of the SS block based on the identified detectable position information, and outputting the SS block based on the set position.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first synchronization signal for synchronizing with a cell, the first synchronization signal transmitted at a first periodicity by a base station serving the cell. The UE may then receive, subsequent to the synchronizing, a second synchronization signal for resynchronizing with the cell. In some cases, the second synchronization signal may be transmitted by the base station according to a second periodicity that is different from the first periodicity. In some cases, the second synchronization signal may include a plurality of repetitions of a first sequence that is based at least in part on a cell identifier of the cell. The UE may communicate over the cell with the base station based at least in part on the resynchronizing.

The present disclosure relates to wireless communications implemented by a user equipment (UE). The UE may receive a demodulation reference signal (DMRS) sequence grouping from a base station, select a DMRS sequence for transmission of DMRS based on the DMRS sequence grouping, and transmit uplink (UL) data along with the DMRS for UL transmission using contention-based protocol, wherein the DMRS is transmitted based on the selected DMRS sequence.

To appropriately perform notification control related to a synchronization raster position, one aspect of the user terminal according to the present disclosure includes: a reception section that receives a synchronization signal block including a first information element related to a subcarrier offset, and a second information element related to a downlink control channel for system information; and a control section that, when a given code point is indicated in the first information element, recognizes an absence of a control resource set for the system information associated with the synchronization signal block, and determines an information type to be notified based on a code point included in the second information element.

In a vehicular communication network, a communication device generates a physical layer (PHY) preamble of a PHY protocol data unit (PPDU) for transmission in the vehicular communication network. The communication device generates a plurality of PHY data segments of the PPDU, and one or more PHY midambles, each PHY midamble to be transmitted between a respective pair of adjacent PHY data segments, and each PHY midamble including one or more training signal fields. Generating the one or more PHY midambles includes, when the PPDU is to be transmitted according to an extended range (ER) mode, generating each training signal field to include i) a first portion based on a very high throughput long training field (VHT-LTF) defined by the IEEE 802.11ac Standard and ii) a second portion based on the VHT-LTF defined by the IEEE 802.11ac Standard; and transmitting, by the communication device, the PPDU in the vehicular communication network.

Apparatus, methods, and computer-readable media for facilitating detection of false base stations based on signal times of arrival are disclosed herein. An example method for wireless communication of a UE includes receiving a signal from each of one or more neighboring base stations. The example method also includes determining a system timing associated with the wireless communications network based on a respective time of arrival at which each signal is received from the neighboring base stations. The example method also includes receiving a signal from an FBS, the FBS signal being associated with a PCI different than the PCIs associated with the signals received from each of the neighboring base stations. Additionally, the example method includes identifying a presence of the FBS based on a difference between the system timing and a time of arrival at which the signal is received from the FBS.

Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for a UE to measure sounding reference signal (SRS) transmission from another UE. The measurements results may be used, for example, by a serving cell for interference mitigation purposes. For example, the disclosed techniques may include a first UE receiving a configuration for measuring SRS transmitted by a second UE; determining a first bandwidth part (BWP) associated with the configuration; determining a frequency reference point for the SRS to be measured; determining SRS measurement resources, based on one or more parameters of the configuration and the frequency reference point; and measuring SRS transmitted by the second UE on the determined SRS measurement resources.

A signal transmitting method and apparatus, a storage medium, and a user terminal are provided. The method includes: receiving a network configuration information, wherein the network configuration information at least comprises a position of an Orthogonal Frequency Division Multiplexing (OFDM) symbol occupied by the RS information; and determining the RS information based on the position of the OFDM symbol occupied by the RS information.

A terminal includes a receiving unit configured to receive information relating to an arrangement of a tracking reference signal and a plurality of tracking reference signals based on the information relating to the arrangement of the tracking reference signal, and a controller configured to perform a Doppler estimation using two of the plurality of tracking reference signals, wherein an interval between the two of the plurality of tracking reference signals in a time domain is variable.

Positioning for user equipments (UEs) in a wireless network is supported by restricting position reference signal (PRS) configuration parameters for a Transmission Reception Point (TRP) based on PRS configuration used by co-located TRPs. The PRS configuration parameters for the TRP may be restricted by restricting orthogonality of the PRS resources with respect to PRS resources from co-located TRPs to only code division multiplexing, and other types of orthogonality such as time division multiplexing and frequency divisional multiplexing are not permitted for co-located TRPs. The PRS configuration parameters for the TRP may be restricted to the same muting sequence type, e.g., inter-instance and/or intra-instance muting, as used by co-located TRPs. The PRS configuration parameters, e.g., related to orthogonality and/or muting, are not restricted with respect to non-co-located TRPs. The restrictions on the PRS configuration parameters for a TRP may be determined by a central authority, such as a location server.