Abstract: A user equipment (UE) includes at least one processor and at least one memory including computer program code. The at least one memory and the computer program code are configured to, with the at least one processor, cause the UE to obtain a conditional handover command, the conditional handover command indicating a multiple cell target for handover from a source cell and at least one performance margin, each of the at least one performance margin associated with a cell neighboring a first cell in the multiple cell target, determine whether to initiate a handover to the first cell based on the at least one performance margin, and transmit data to the first cell based on the determination of whether to initiate the handover.

Abstract: One disclosure of the present specification provides a method by which a terminal that joined a first public land mobile network (PLMN) performs a connection. The method may comprise a step for transmitting a first request message to a network node through a base station. The base station may be a base station of a second PLMN that broadcasts system information including information about the first PLMN. The method may comprise a step for receiving, from the network node, a first acceptance message for the first request message. The first acceptance message may include information indicating that there is a service failure in the first PLMN. The method may comprise a step for displaying, on a screen of the terminal, information indicating that the terminal is connected to the second PLMN on the basis of the information.

Abstract: A terminal includes a reception unit that receives a synchronization signal block in an unlicensed band of a high frequency band higher than or equal to a frequency band of a frequency range 2 (FR2), the FR2 being in a range including a frequency range 1 (FR1) that is a low frequency band and the FR2 that is a high frequency band in a new radio (NR) system; and a control unit that identifies, based on the received synchronization signal block, an index of a candidate position for a transmission corresponding to the received synchronization signal block, from among candidate positions for transmitting a synchronization signal block, the number of the candidate positions being greater than a predetermined number.

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and/or cellular network to resume a connection. To resume the connection, the UE may transmit a fully protected connection resume message, e.g., which may include protection for a resume cause field.

Abstract: This disclosure provides systems, methods, and apparatuses to enable a user equipment (UE) and a base station to improve reception of a random access response (RAR) by the UE in an unlicensed spectrum. A network may define a procedure for calculating a random access radio network temporary identifier (RA-RNTI) specific to unlicensed spectrum based on an extended RAR window. The calculation procedure may allow UEs transmitting in the window to calculate a unique RA-RNTI and identify a RAR addressed to the UE using the unique RA-RNTI. Additionally, or alternatively, a base station may transmit a RAR including timing information associated with a corresponding random access request. Accordingly, a UE may receive the RAR and compare the timing information with its own random access request in order to determine whether the RAR is addressed to the UE. Additionally, a UE may monitor a secondary cell or a sub-band for the RAR.

Abstract: A user equipment (UE) is configured for half-duplex operations with a network. The UE determines that half-duplex (HD) frequency division duplex (FDD) is enabled by a network with which the UE is communicating, wherein a guard period is configured for downlink and uplink switching when the HD FDD is enabled, performs a first uplink transmission at a first time and performs a first downlink reception at a second time, wherein the guard period represents a time duration between the first time and the second time during which the UE is not to perform a second different uplink transmission or a second different downlink reception.

Abstract: A method and terminal device for sidelink data transmission is provided. The method includes: when a terminal device determines, according to first configuration information, to receive a first sidelink transmission channel on a target transmission resource, and determines, according to second configuration information, to transmit a second sidelink transmission channel on the target transmission resource, receiving the first sidelink transmission channel or transmitting the second sidelink transmission channel on the target transmission resource, by the terminal device, according to a first rule. According to the method and terminal device for sidelink data transmission of the disclosure, whether to transmit or to receive data is determined according to priorities of data, or transmission modes, or allocation modes of the resource, or the like when the terminal device is configured to both transmit and receive data, so as to solve the problem of sidelink transmission conflicts of terminal device.

Abstract: The present technology relates to a wireless communication apparatus and method by which communication can be performed with a higher efficiency. The wireless communication apparatus includes a preamble generation section that generates a preamble that is to be deployed at the top of a transmission frame and includes header information, a midamble generation section that generates a midamble that is to be deployed in the middle of the transmission frame and includes information of at least part of the header information, and a wireless transmission processing section that transmits the transmission frame including the preamble and the midamble. The present technology can be applied to a wireless communication apparatus.

Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method includes: transmitting a signaling message to a first node on a backup backhaul route, the signaling message comprising an indication of a failure in a backhaul link including a second node different from the first node.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive, from a base station, an indication of a time domain resource allocation, wherein the indication is associated with a starting symbol and a length and includes symbols across at least two slots. Accordingly, the mobile station may communicate, with the base station, using the time domain resource allocation. In some aspects, a mobile station may receive, from a base station, an indication of at least two slots to be merged, wherein the at least two slots are associated with a periodicity. Accordingly, the mobile station may communicate, with the base station and within the at least two slots. Numerous other aspects are provided.

Abstract: Systems, methods, apparatuses, and computer program products for supporting a narrow serving beam in a hierarchical beam configuration. For example, certain embodiments may provide a UE that may receive, from a network node, information of a quasi co-location (QCL) configuration of self-contained, aperiodic, and/or semi-persistent tracking reference signals (TRSs) for sub-beams, where a source for one or more TRSs may be channel state information (CSI-RS) without repetition. In addition, the UE may determine these TRSs as self-contained, for which there are no associated periodic TRSs, if there is a TRS configured for an SSB sub-beam.

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a paging indicator message to one or more user equipment (UEs) in a group of UEs. The base station may receive, based at least in part on the paging indicator message, a first response message from the one or more UEs. The first response message may be received using a resource that is shared with a random access channel message for the group of UEs. The base station may transmit, based at least in part on the first response message, a second response message to the one or more UEs.

Abstract: Disclosed are methods and apparatuses for transmitting and receiving data channels in a communication system. An operation method of a terminal in a communication system may comprise receiving, from a base station, resource allocation information of a plurality of physical uplink shared channels (PUSCHs) used for repetitive transmission of a same transport block (TB); identifying a position of each of the plurality of PUSCHs in a time domain based on the resource allocation information; and repeatedly transmitting the same TB to the base station at the position of each of the plurality of PUSCHs. Therefore, performance of the communication system can be improved.

Abstract: A user equipment includes a receiving unit that executes sensing for a part of candidate resources to be used for transmission of inter-terminal direct communication, a control unit that determines a resource to be used for transmission based on a result of the sensing, and a transmitting unit that transmits a message to another units of user equipment using the determined resource.

Abstract: A disclosure of the present specification provides a method for performing sidelink communication by a UE. The method may comprise the steps of: performing sidelink communication on the basis of a first RAT; switching an RAT for the sidelink communication from the first RAT to a second RAT; and performing the sidelink communication on the basis of the second RAT.

Abstract: This disclosure provides a transmission method, a terminal device, and a network-side device. The method is applied to a terminal device and includes: receiving first indication information from a network-side device, where the first indication information is used to indicate a first resource usable for configured grant transmission within a configured grant resource period; and transmitting first to-be-transmitted data on the first resource for consecutively K times, where K is a positive integer.

Abstract: The present disclosure includes techniques for providing timing for outputting audio from two or more devices. An example method includes determining, at a first device, timing for outputting audio from a second device and a third device in an attempt to have the audio from the second and third devices play in a synchronized manner. The example method further includes communicating from the first device to the second device, using a first wireless communication technology (e.g., Wi-Fi), the timing for outputting the audio. The example method further includes communicating from the first device to the third device, using a second wireless communication technology (e.g., Bluetooth) that is different from the first wireless communication technology, the timing for outputting the audio.

Abstract: A terminal device includes: a higher layer processing unit configured to set at least one first RAT and at least one second RAT by signaling of a higher layer from the base station device; and a receiving unit configured to receive a transmission signal in the first RAT and a transmission signal in the second RAT. The transmission signal in the first RAT is mapped to a resource element configured on a basis of one physical parameter for each sub frame. The transmission signal in the second RAT is mapped to a resource element configured on a basis of one or more physical parameters for each sub frame and is mapped to a resource element configured on a basis of one physical parameter in a predetermined resource included in each of the sub frames.

Abstract: Disclosed is a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security, and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology.

Abstract: An apparatus and a method of processing collision between synchronization signal/physical broadcast channel block (SSB) transmission and periodic transmission, applied in a shared spectrum are provided. The method includes obtaining, by a terminal device, a first candidate SSB position within a discovery burst transmission (DRS) window and obtaining, by the terminal device, a first resource for the periodic channel or signal transmission, wherein when the first resource is overlapped with the first candidate SSB position, determining, by the terminal device, whether the first resource is available for the periodic channel or signal transmission. This can solve issues in the prior art, provide a technical solution of handling a possible collision between an SSB and the periodic channel or signal, provide a simple implementation, provide a good communication performance, and/or provide high reliability.