A radio link monitoring method, the method includes: generating an indication indicating that a reference signal is not detected if the reference signal is not detected; and performing radio link monitoring according to the indication.

A method of operating a digital radio transmitter device in accordance with a predetermined communication protocol defining a transmission timing tolerance. The method comprises: transmitting a plurality of first periodic transmissions in accordance with said predetermined communication protocol having a first period and an inherent timing uncertainty less than said transmission timing tolerance; performing a plurality of second periodic actions with a second period wherein said first and second periods are equal to each other or an integer multiple of each other; and adjusting a timing of one or more of the first periodic transmissions by an amount greater than said inherent timing uncertainty but less than or equal to a difference between said inherent timing uncertainty and said transmission timing tolerance so as to change said first period temporarily by an amount less than or equal to said transmission timing tolerance, thereby changing an offset between said first transmissions and said second actions.

A method of a user equipment (UE) operating in a wireless communication system using orthogonal subcarriers, the method including generating, by the UE, Orthogonal Frequency Division Multiplexing (OFDM)-based symbols, wherein each OFDM-based symbol includes a cyclic prefix (CP) and a data part, transmitting, by the UE, a first subframe including N OFDM-based symbols, wherein N is an integer and transmitting, by the UE, a second subframe including N OFDM-based symbols, following the first subframe, wherein, when the first subframe and the second subframe are overlapped based on a timing adjustment command received from a base station, the first subframe is transmitted completely while the second subframe is transmitted partially without an overlapped part of the second subframe.

A circuit arrangement may include an analog-to-digital-converter (ADC) configured to convert an analog signal into a digitized signal having an ADC frequency, a decimation circuit configured to provide a first signal having a sampling frequency based on the digitized radio signal having the ADC frequency. The sampling frequency is smaller than the ADC frequency. The circuit arrangement may further include a timer circuit providing a second signal having a timer frequency and a timing control signal to control the timing of the decimation circuit, and a difference determination circuit configured to determine a phase difference between the second signal and the first signal.

Modifiable guard periods are provided for time division duplexing (TDD) wireless communications. Guard periods may be modified based at least in part on propagation delay information, such as timing advance (TA) information, for one or more user equipment (UE) in a TDD wireless system. Modifiable guard periods may allow for enhanced system efficiency for the TDD wireless system relative to systems that may use a static or semi-statically configured guard period for TDD communications. Modifiable guard periods may in some cases allow one or more uplink or downlink transmissions to be provided within a legacy guard period of a legacy TDD special subframe.

Example synchronization signal sending and receiving methods and apparatus are described. In one example method, a terminal device determines a target frequency resource. A frequency domain position of the target frequency resource is determined based on a frequency domain position offset and a frequency interval of synchronization channels. The terminal device receives a synchronization signal by using the target frequency resource.

A method is described for operating a device in a wireless communication system. The device communicates with a base station using a subframe for the device only; detects, by the device, a problem with a connection between the device and the base station. The device starts a timer upon detecting the problem with the connection between the device and the base station. The device releases a restriction of using the subframe for the device only, if the timer expires. The problem with the connection between the device and the base station is associated with a radio link failure. The detection of a problem with the connection between the device and the base station comprises detecting consecutive out-of-sync indications.

An Integrated Access and Backhaul (JAB) node incorporates two functions, a so-called “base station” function and a so-called “mobile terminal” function. In order to limit the interferences between base stations, all IAB nodes in the same network must be synchronised with one another. In order to ensure this synchronisation, each IAB node may use a time shift value transmitted by its parent node. However, since an IAB architecture is an arborescent architecture, errors in measuring an estimated time shift value for a given IAB node have repercussions on the measurements of estimated time shift values for its child node and so on. Accordingly, the “base station” function of a child IAB node is not activated as long as a time shift value determined by its parent node does not meet a synchronisation criterion.

A method and system for managing communication in a Multi-User Reusing One time Slot (MUROS) based communication network is provided. The method includes selecting a first communication device from a plurality of communication devices in the communication network, determining a Timing Advance (TA) associated with the first communication device and identifying a type of the first communication device, identifying a second communication device from the plurality of communication devices based on a TA associated with the second communication device, a type of the second communication device, the TA of the first communication device, and the type of the first communication device, and pairing the first communication device and the second communication device in a first time slot for establishing communication with the plurality of communication devices.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a synchronization signal block (SSB) transmitted using a single carrier quadrature amplitude modulation (SC-QAM) waveform, wherein the SSB has a uniform bandwidth allocation for each of a primary synchronization signal (PSS) included in the SSB, a secondary synchronization signal (SSS) included in the SSB, and physical broadcast channel (PBCH) data included in the SSB. The UE may perform initial channel access based at least in part on the SSB. Numerous other aspects are described.