Abstract: Provided are an apparatus and method for providing security in a wireless communication system. A user equipment (UE) may transmit a registration request message to an access and mobility management function (AMF), in response to reception of a registration reject message from the AMF, transmit an attach request to a mobility management entity (MME), and receive an attach accept from the MME, wherein, when the AMF and the UE have a security context, a security-protected registration reject message may be transmitted by the AMF to the UE, a registration request from the UE may be redirected from the AMF to the MME, and when at least one of the AMF and the UE does not have security context information, the attach request may include security verification information.

Abstract: Embodiments of this application provide a method for receiving and sending a reference signal, an apparatus, and a system, so that a network device can correctly demodulate uplink data of different terminal devices of a same cell. This solution is applicable to a wireless communications system including a first cell. The first cell includes a plurality of terminal devices that can transmit uplink data on a same time-frequency resource. A first terminal device in the plurality of terminal devices determines an index of a first sequence based on a first parameter value, and generates a first reference signal based on the first sequence indicated by the index of the first sequence. Then, the first terminal device sends the first reference signal to the network device. The first parameter value is different from a parameter value corresponding to another terminal device in the plurality of terminal devices.

Abstract: Techniques are described herein for periodically transmitting a first set of signals (e.g., reference signals) during an on-period of a discontinuous reception (DRX) cycle rather than during an off-period of the DRX cycle. Such techniques may enable a user equipment (UE) operating in a DRX mode to conserve additional power during the DRX cycle. A periodicity for transmitting the first set of signals during the on-period may be determined. The periodicity may indicate that every one-in-N DRX cycles, the first set of signals are to be transmitted during the on-period. During other DRX cycles, the first set of signals may be transmitted during the off-period. When the first set of signals are transmitted during the on-period, the UE may refrain from activating certain components during the off-period, thereby conserving power.

Abstract: Methods, apparatuses, and computer readable media for indicating a time gap in case of a BWP switch are provided. A base station may transmit to a UE, and the UE may receive from the base station, an indication of a BWP switch from a first BWP to a second BWP. The UE and the base station may communicate with each other via a PDSCH or a PUSCH, in the second BWP based on a time gap. The time gap may be based on at least one of a first time parameter associated with the indication or a second time parameter associated with the BWP switch. The time gap may have a duration that is at least as long as a first duration of a BWP switch delay associated with switching from the first BWP to the second BWP.

Abstract: Various examples and schemes pertaining to resource allocation enhancements for sidelink (SL) communications are described. A user equipment (UE) receives from a peer UE a sidelink control information (SCI) signal indicating a reserved resource. The UE then determines whether the reserved resource is acceptable by performing a reference signal received power (RSRP)-based comparison. Depending on a result of the determining, the UE performs a transmission to either the peer UE or one or more other UEs.

Abstract: Provided are a method and apparatus for data transmission on an unlicensed spectrum, a device, and a storage medium, relating to the technical field of communications. The method comprises: acquiring a channel occupancy time (COT); and sending a target uplink transmission to a network device by means of a first time domain resource in the COT, wherein a second time domain resource in the COT can be used by the network device to send a target downlink transmission, and the second time domain resource is located after the first time domain resource on a time domain. In this way, there is a higher probability of a network device accessing an unlicensed spectrum under the condition of ensuring the fair sharing of resources on the unlicensed spectrum.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Embodiments of present disclosure relates to apparatus and method for enabling optimized decoding of data packet in HARQ based communication in wireless communication network. Initially, unsuccessful decoding of instant data packet received from transmitting unit is identified. If number of previous data packets, received preceding the instant data packet, is greater than one, subsequent decoding is enabled in the receiving unit for the instant data packet. The subsequent decoding includes generating sequentially, modified versions of data packets, for decoding. The modified versions comprises all possible weighted combinations of the data packets with at least one of the instant data packet and one or more of the previous data packets.

Abstract: A system for providing services to remote airports includes a backbone network, an antenna assembly and a remote services module. The backbone network operates using first assigned RF spectrum and is configured to provide backhaul services and network control to operably couple one or more base stations of the backbone network to the Internet. The antenna assembly is disposed at a remote airport to define an airport cell and is configured to communicate wirelessly with an aircraft located in the airport cell via second assigned RF spectrum. The antenna assembly is operably coupled to the backbone network for backhaul to the Internet or an intranet. The remote services module is accessible by the aircraft both in flight and on the ground within the airport cell via the antenna assembly. The remote services module includes processing circuitry configuring the remote services module to provide the aircraft with access to obtain airside or landside services associated with the remote airport.

Abstract: A method, apparatus, and system are provided for slice and/or subscriber identification module (SIM) device locking/unlocking. In one embodiment, a method implemented in a user equipment, UE, having one or more subscriber identification module, SIM, is provided. The method includes activating one or more subscriber identification module, SIM for a UE. The method includes, as a result of activating, initiating a request to register the UE with a network, and receiving allowed Network Slice Selection Assistance Information, NSSAI. The method includes associating received one or more single-NSSAI, S-NSSAI, indicated by the allowed NSSAI to one of the one or more SIM in the UE according to a policy. The method includes using one of the one or more S-NSSAI associated to one of the activated SIM to establish a Packet Data Unit, PDU, session.

Abstract: A method for indicating a time difference between a PUCCH and a PDSCH, a base station, and a readable medium. The method for indicating a time difference between a PUCCH and a PDSCH comprises: determining whether a PDSCH-to-HARQ-timing-indicator field indicates a time difference between a PDSCH and a PUCCH which is used for feeding back HARQ-ACK; generating indication information according to the indication result; and indicating the indication information to the UE by means of downlink control information. By applying the solution, a UE is able to accurately acquire a time slot for feeding back HARQ-ACK while a time difference between a PDSCH and a PUCCH which is used for feeding back the HARQ-ACK is indicated by a PDSCH-to-HARQ-timing-indicator field.

Abstract: A method of wireless communication performed by a user equipment (UE) includes: operating in a dual SIM dual active (DSDA) mode with respect to a first subscriber identity module (SIM) and a second SIM; controlling transmit operations of the first SIM and the second SIM according to a time division multiplexed (TDM) priority pattern; performing demodulation reference signal (DMRS) bundling on the first SIM, the first SIM having a higher priority state according to the TDM priority pattern; and deferring a priority switch to give the higher priority state to the second SIM until after the first SIM has completed a repetition of DMRS bundling.

Abstract: A communication device includes a master component and a plurality of slave components. The master component comprises an antenna. The plurality of slave components comprises a first antenna, a second antenna, and a frequency converter. The first antenna communicates with an external device by a beamforming operation on a first carrier frequency, and receives first signals from the external device. The second antenna communicates with the antenna of the master component by the beamforming operation on a second carrier frequency, and receives second signals from the master component. The frequency converter converts the first signals received through the second antenna from the second carrier frequency of the external device into the first carrier frequency of the first master component and converts the second signals received through the first antenna from the first carrier frequency of the first master component into the second carrier frequency of the external device.

Abstract: Systems, methods, articles of manufacture, and computer-readable media. A server may receive a phone call and generate a uniform resource locator (URL) comprising a session identifier for an account. The server may transmit the URL to a client device. The server may receive, from a web browser, a request comprising the URL. The server may determine that the session identifier in the URL of the request matches the session identifier for the account, and transmit, to the web browser, a web page at the URL. The server may receive, from the web browser, a cryptogram read by the web page via a card reader of the client device and decrypt the cryptogram. The server may authenticate the identity of the caller for the call based on decrypting the cryptogram and the session identifier of the URL matching the session identifier of the account.

Abstract: Methods are provided for providing a unified communication history of a multi-modal communication. In one aspect, a method includes receiving a plurality of event logs related to the multi-modal communication. The multi-modal communication comprises a first communication modality and a second communication modality. The method includes aggregating the one or more events from the event logs as a plurality of aggregated events and resolving an identity of each user from among the plurality of users in the plurality of aggregated events. The method includes storing the aggregated events into a communication history of the multi-modal communication. Systems and machine-readable media are also provided.

Abstract: The disclosure relates to systems, methods, and devices for protecting Vehicle-to-Everything (V2X) communications (also known as intelligent transport systems (ITS) communications) from spurious emissions of nearby wireless devices operating in near-band or adjacent frequency bands. The system detects radio signals of a nearby ITS communication device, determines its radio communication parameters, and determines an interference condition based on whether the wireless device may interfere with the ITS communication device. The system also requests a change, based on the interference condition, in the radio subsystem communication parameters of the wireless device. The system also determines a geographic location of the wireless device, and, based on whether the requested change complies with a regulatory requirement of the determined geographic location, implements the requested change.

Abstract: A device of a New Radio (NR) User Equipment (UE), a system, a method and a machine-readable medium. The device includes a radio frequency (RF) interface and processing circuitry coupled to the RF interface. The processing circuitry is to: cause communication with a NR evolved Node B (gNodeB) on a first bandwidth part (BWP); determine a BWP switching delay for an uplink (UL) communication from the UE to the gNodeB, the BWP switching delay based on a timing advance (TA) for the UL communication; encode the UL communication for transmission to the gNodeB; switch from the first BWP to a second BWP at an expiration of the BWP switching delay; and cause transmission of the UL communication on the second BWP.

Abstract: Systems, apparatus and methods enable layer 2 (L2) relaying optimizations for a remote user equipment (UE) to receive system information (SI) from a relay UE. The relay UE may establish a sidelink communication channel with the remote UE that is in a radio resource control (RRC) idle state, an RRC inactive state, or an out-of-coverage (OOC) state with respect to the base station. The relay UE decodes a relay SI request received through the sidelink communication channel from the first remote UE. The relay SI request indicates requested system information. The Relay UE obtains the requested system information or a subset of the requested system information from a memory device or from the base station and encodes a relay SI response to send to the first remote UE. The relay SI response includes the requested system information or the subset of the requested system information.

Abstract: A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.

Abstract: According to an embodiment of the present disclosure, a user equipment (UE) may determine at least one monitoring search space (SS) set to be monitored by the UE in a specific slot having configured therein two or more SS sets based on a first threshold related to a physical downlink control channel (PDCCH) blind detection limit of the UE and a second threshold related to a control channel element (CCE) processing limit of the UE; and receive at least one PDCCH signal in the specific slot based on PDCCH candidates included in the determined at least one monitoring SS set.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may monitor for a demodulation reference signal (DMRS) according to a default precoder, where the DMRS is associated with channel state feedback (CSF) information. The UE may perform a channel estimation based on the DMRS, and transmit an uplink message indicating one or more candidate precoders, where the one or more candidate precoders are selected based on the channel estimation. The UE may receive a downlink message indicating a precoder of the one or more candidate precoders based on transmitting the uplink message. The UE may then communicate with a network entity in accordance with the indicated precoder based on receiving the downlink message.