Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving a layer 1 signaling or a layer 2 signaling indicating a subset of a plurality of physical cell identifications (PCIs) associated with a plurality of serving cells in the network, establishing a plurality of communication channels with one or more of transmission-reception points (TRPs), wherein each TRP of the one or more TRPs comprises a corresponding PCI of the plurality of PCIs, and determining one or more PCIs of the plurality of PCIs used as one or more default input cell identifications (IDs) associated with a plurality of physical processings, when no explicit configured input ID is signaled to the UE associated with the plurality of physical processings.

A UE in a wireless communication system is provided. The UE comprises a transceiver configured to receive SS/PBCH block over downlink channels using a set of parameters based on an operation mode. The operation mode is configured for the SS/PBCH block as a first operation mode in which the SS/PBCH block is used on a LAA Scell or a second operation mode in which the SS/PBCH block is at least used on a Pcell. The set of parameters is configured as a first set of parameters for the SS/PBCH block when the operation mode of the SS/PBCH block is configured as the first operation mode or a second set of parameters for the SS/PBCH block when the operation mode of the SS/PBCH block is configured as the second operation mode. The first and second set of parameters include different information each other.

A data transmission method and apparatus, wherein a first SSB set corresponding to a transmission window and a second SSB set taken as a subset of the first SSB set are provided, and at least one SSB in the second SSB set is transmitted in the transmission window, which may be adapted to cell coverage of different situations, and improve flexibility of resource scheduling.

Systems and methods of selecting a PRACH resource opportunity are described. One of multiple Synchronization Signal Blocks (SSBs) is received. Each SSB has PSSs, SSSs and a PBCH that contain system information. A RACH occasion (RO) is selected from among multiple ROs associated with the SSB. A PRACH is transmitted on resources of the RO. The ROs are configured in a TDM and/or FDM manner. The RO is selected randomly or, if TDM is used, an earliest of the ROs from a UE-initiated RACH transmission in a previous period. A preamble of the RO is selected randomly with equal probability.

A method for detecting base stations is shown comprising steps of determining an assumed primary synchronization signal with the strongest peak in a signal set; finding an associated secondary synchronization signal; shifting the assumed primary synchronization signal and the secondary synchronization signal at the same point and time; subtracting the signals from one another obtaining a residual signal; and determining whether a peak of the residual signal is present which is larger than a predetermined threshold. Further, a search device is shown.

A method and wireless transmit/receive unit (WTRU) include a WTRU configured to search a frequency bandwidth, out of a set of potential frequency bandwidths, for synchronization signals. The frequency bandwidth includes a secondary synchronization signal in subcarriers. Other subcarriers in the frequency bandwidth outside of the secondary synchronization signal include data. The WTRU is configured to synchronize using the secondary synchronization signal in the frequency bandwidth. The WTRU is configured to recover the data in the frequency bandwidth

In a method for use in a base station of a mobile telecommunications system, primary system information is maintained and is periodically broadcast while secondary system information is broadcast in response to a trigger event.

Provided are a base station device and a mobile station device, which can lighten a cell-search processing. The base station device includes a frame constitution unit for forming a frame, in which a pilot symbol multiplied by a base station scrambling code and a plurality of sequences contained in the corresponding sequence set is arranged in at least the head or tail, and a radio transmission unit for sending the formed frame. On the receiving side, the frame timing can be detected from the position of a pilot symbol contained in that frame. Since the base station scrambling code and the sequence set containing the sequences are made to correspond to each other, candidates can be narrowed to at most the base station scrambling codes of the number of the combinations of the sequences contained in the sequence set, by detecting the sequences multiplied by the pilot symbol.

A system, computer software and method for collecting, in addition to position data, additional positioning data in a user terminal served by a communication network. The method includes initiating, by generating a message within the user terminal, collection of the positioning data, where the positioning data includes information based on which a physical location of the user terminal is determined; measuring, by the user terminal, at least one parameter related to the physical location of the user terminal in response to the message; producing, within the user terminal, measurement reports that include the at least one parameter; selecting, within the user terminal, one or more measurement reports that were generated in response to the message generated by the user terminal; reporting the selected one or more measurement reports to an interface within the user terminal; and transmitting, from the interface, the reported one or more measurement reports to an external server or to the communication network.

The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting control signal via a PUCCH in a wireless communication system, and to an apparatus for the method, wherein the method comprises the following steps: joint-coding a plurality of pieces of control information to obtain a single codeword; obtaining a first modulation symbol sequence from the single codeword; obtaining, from the first modulation symbol sequence, a plurality of second modulation symbol sequences corresponding to each slot in the PUCCH; cyclically shifting the plurality of second modulation symbol sequences in a time domain to obtain a plurality of third modulation symbol sequences; performing a discrete Fourier transform (DFT) precoding process on the plurality of third modulation symbol sequences to obtain a plurality of complex symbol sequences in a frequency domain; and transmitting the plurality of complex symbol sequences via the PUCCH.