Abstract: The present invention relates to: 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 invention can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. In addition, the purpose of the present invention is to provide an operating method and device of a terminal and a base station, which are for transmitting uplink control information in a communication system.

Abstract: The method for compensating a boresight error in a low earth orbit (LEO) satellite antenna according to the present disclosure comprising the steps of: converting a communication point of the LEO satellite and the location of the ground station into the geocentric coordinate system, and setting an incidence angle of the electromagnetic wave radiated from the antenna of the LEO satellite; calculating the measured meteorological condition as a meteorological condition at a specific altitude interval; calculating the meteorological conditions respectively as an effective refractive index; dividing the atmosphere into layers at specific altitude intervals, and calculating an arrival coordinate of the electromagnetic wave for which the atmospheric environment is considered; when the error between the location of the ground station and the arrival coordinate of the electromagnetic wave is less than a target error, deciding the compensating angle for the incidence angle of the electromagnetic wave.

Abstract: The disclosed subject matter relates to techniques for transmitting reference signals in non-orthogonal multiple access (NOMA) communication protocols. In one embodiment, a method comprises determining a demodulation reference signal (DMRS) for use by a group of mobile devices in association with uplink data transmissions, wherein respective mobile devices of the group of mobile devices are configured to employ a same time and a same frequency resource of a wireless communication network in association with communicating with network devices of the wireless communication network according to a NOMA communication protocol. The method further comprises determining different configuration parameters for application by the respective mobile devices in association with transmitting the DMRS with the uplink data transmissions, wherein the different configuration parameters facilitate differentiating between the DMRS as transmitted by the respective mobile devices.

Abstract: A method for decreasing a Call Setup Time Key Performance Indicator (CST KPI) of an Internet Protocol (IP) multimedia call in a mobile telecommunications network includes: initiating the IP multimedia call from an originating user equipment (UE) to a terminating UE; transmitting a session initiation protocol (SIP) call initiation message from the originating UE to a terminating Proxy-Call Session Control Function (P-CSCF) through an originating Serving-Call Session Control Function (S-CSCF); and creating a wake-up message via a network element upon receiving the SIP call initiation message. The wake-up message bypasses a plurality of network application servers (ASs) to start switching a transition of the terminating UE from an idle state to a connected state before the SIP call initiation message reaches the terminating P-CSCF.

Abstract: An operation method of a first communication node in a communication system supporting Vehicle-to-Everything (V2X) communications can include: determining at least one frequency band for transmission of semi-persistent scheduling (SPS) traffic; generating user equipment (UE) assistance information including information indicating the at least one frequency band; and transmitting the UE assistance information to a base station supporting the V2X communication.

Abstract: Described is a method of reducing uplink inter-cell interference in a cellular communications network. The method comprises identifying in a cell any user equipments (UEs) which are susceptible to interference (ISUs) from another UE, particularly another UE in a neighboring cell. The method includes identifying in said cell any UEs causing interference (ICUs) to at least one neighboring cell and, more particularly, causing interference to a UE in a neighboring cell. The identified ISUs and ICUs are combined into a priority list for frequency resource reservation or allocation in said cell. The method may include limiting the identification of ISUs and ICUs to a selected number of UEs within the cell.

Abstract: Apparatuses, methods, and systems are disclosed for uplink transmission blanking. One apparatus (200) includes a receiver (212) that: receives (602) a first signal from a base unit, wherein the first signal is used for indicating scheduling information for a first uplink transmission; and receives (604) a third signal from the base unit. The third signal is used for determining a first one or more symbols of the first uplink transmission to be blanked. The apparatus (200) also includes a processor (202) that determines (606) the first one or more symbols of the first uplink transmission to be blanked based on the third signal. The apparatus (200) includes a transmitter (210) that transmits (608) the first uplink transmission to the base unit with the first one or more symbols blanked.

Abstract: A determination unit of a communication apparatus determines whether or not there has been a change of trend in the communication volume. This determination is performed based on a communication volume per session of a plurality of non-management access destination sessions in a first unit period, and a transition trend of a communication volume per session of a plurality of non-management access destination sessions in a first period. A specifying unit specifies, when it is determined that there has been a change of trend in the communication volume, an access destination that is newly set as a traffic control target access destination among a plurality of non-management access destinations that correspond to the plurality of respective non-management access destination sessions. This specification is performed based on increase rates of the communication volumes for the respective non-management access destination sessions in the first unit period and a second period.

Abstract: A method of transmitting an indication of user equipment uplink buffer status in a wireless communications network in which user equipment is configured to communicate with one or more base stations using dual connectivity techniques, a computer program product and user equipment operable to perform that method. The method comprises: receiving an indication of a dual connectivity configuration to be used by the user equipment for uplink transmission; structuring an uplink buffer status report to group uplink buffer status by one or more scheduler to be used by the user equipment according to the received indication of a dual connectivity configuration; and transmitting the structured uplink buffer status report to the one or more base stations. Aspects and embodiments provide a method for providing buffer status reports in a network offering dual connectivity functionality according to which user equipment is served by multiple independent schedulers which may be connected via a non-ideal backhaul link.

Abstract: A method, performed by a user equipment (UE), of deciphering data in wireless communication system is provided. The method includes receiving a packet data convergence protocol (PDCP) data packet data unit (PDU), determining a RCVD_COUNT of the PDCP data PDU, determining whether integrity protection is performed to the PDCP data PDU, and performing, based on whether the integrity protection is performed to the PDCP data PDU, deciphering of the PDCP data PDU using the RCVD_COUNT, wherein the RCVD_COUNT is determined based on hyper frame number (HFN) of the PDCP data PDU determined according to RCVD_DELIV and sequence number (SN) of the PDCP data PDU, and wherein RX_DELIV is a count value of a first PDCP service data unit (SDU) not delivered to an upper layer of PDCP and waiting to be delivered to the upper layer of PDCP.

Abstract: Certain aspects of the present disclosure provide techniques for using beam sets for mobility management. A BS serving the UE may transmit, to the UE, information regarding one or more beam sets, wherein each of the beam sets comprise one or more reference beams used to transmit a reference signal. The BS may transmit, to the UE, one or more mobility parameters, wherein the mobility parameters are associated with the reference beams and one or more mobility event triggers. The BS may receive, from the UE, an indication of a detected mobility event, the mobility event is detected based, at least in part, on the mobility parameters. The BS may take one or more actions based, at least in part, on the indication. A UE may perform corresponding steps as described herein.

Abstract: Various aspects described herein relate to techniques for uplink transmissions in wireless communication systems. In an aspect, a method includes receiving, by a user equipment (UE), hopping information for two consecutive symbols, generating, by the UE, a first symbol of the two consecutive symbols using a format, generating, by the UE, a second symbol of the two consecutive symbols based on the format and the hopping information, and transmitting, by the UE, the two consecutive symbols in an uplink signal.

Abstract: Embodiments of the present disclosure disclose a BUM traffic control method, a related apparatus, and a system. A traffic controller receives, through a tunnel, a BUM packet encapsulated by a network device in a target broadcast domain. The traffic controller collects, based on the received BUM packet, statistics about a BUM traffic value of a target object within a preset time period, and determines whether the BUM traffic value is greater than a preset BUM traffic threshold of the target object. If the BUM traffic value is greater than the preset BUM traffic threshold, the traffic controller controls BUM traffic of the target object, to reduce the BUM traffic of the target object. The foregoing solution can resolve a problem of BUM packet flooding caused by an increase in a quantity of hosts or an increase in a quantity of network devices in a communications network.

Abstract: In order to enable reducing a possibility of being unable to connect to an AP in which a failure of a network connection occurs and also lessening a decline in a communication rate, a wireless communication method includes: detecting occurrence of a failure of a network connection in a first wireless communication device, when detecting the occurrence of the failure, determining whether or not to make a first wireless connection to the first wireless communication device, when making the determination to make the first wireless connection, making the first wireless connection to the first wireless communication device, and relaying a first communication between the first wireless communication device and a network.

Abstract: The present disclosure relates to a method and apparatus for optimizing mobility robustness by controlling an inter-Radio Access Technology (inter-RAT) factor. A method for supporting inter-Radio Access Network (RAN) mobility by a source Base Station (BS) in a wireless communication system includes transmitting a handover request message to a target BS, receiving a RAN information request message including a measurement report from the target BS in response to the handover request message, and determining to amend a mobility setting, if it is determined that an unnecessary handover has occurred based on the RAN information request message. The handover request message includes at least one of a Tracking Area Identifier (TAI) of a tracking area to which the source BS belongs, a global BS Identifier (ID), and an E-UTRAN (Evolved-UMTS (Universal Mobile Telecommunication System) Terrestrial Radio Access Network) Cell Global ID (ECGI).

Abstract: Various embodiments disclosed herein enable performing energy detection on a subset of a channel. In various embodiments, a method of performing energy detection is performed by a computing device. In various embodiments, the computing device includes a wireless transceiver, one or more processors, and a non-transitory memory. In various embodiments, the method includes performing energy detection on one or more overlapping portions of a first channel and a second channel. In some embodiments, the method includes determining whether a detected energy level from the energy detection satisfies a threshold. In some embodiments, the method includes transmitting a signal into the first channel based on the threshold being satisfied.

Abstract: Methods, systems, and apparatuses for uplink descriptor channels are described. An uplink descriptor channel may be used by a user equipment (UE) for providing indications that uplink transmissions over allocated uplink data resources are sent in a configuration different from a configuration indicated by an uplink grant. In various examples an uplink transmission may be transmitted by a UE, and received by a base station, and the uplink transmission may include the uplink descriptor channel with uplink data. An uplink descriptor channel may include indications that uplink control information is included in the uplink transmission, and/or that the uplink transmission employs a number of transmission intervals, a number of channels, and/or a different MCS than those indicated by the uplink grant. A base station may receive the uplink descriptor channel and adjust various parameters of decoding an uplink transmission and/or allocating radio frequency spectrum resources.

Abstract: Time stamp replication within wireless networks is described. In an embodiment, a wireless station receives an input time stamp and uses this input time stamp to generate an output time stamp. The wireless station transmits the output time stamp to wireless stations in one of a number of groups which make up the wireless network. The output time stamp is generated to compensate for delays between receiving the input time stamp and transmitting the output time stamp such that output time stamp which is transmitted at a time T corresponds to the value that the input time stamp would have had if it had been received at time T (and not at a time earlier than T). This may, therefore, reduce or eliminate independent time stamp errors and jitter caused by multiple disparate systems and processes.

Abstract: Embodiments concern managing traffic in a radio device. While classifying user-plane packets from multiple applications according to quality of service requirements, a specific user-plane packet is classified as/determined to be a predetermined special-type packet (e.g., the special-type packets establish a new TCP/IP connection for a newly activated application). Based on that, that specific user-plane packet is mapped to a pre-defined radio bearer associated with a preconfigured priority, for example a highest priority among all bearers to which any of these user-plane packets from the multiple applications are mapped. Then all the mapped user-plane packets are scheduled for transmission according to their respective priorities. For example, the specific user-plane packet could be a SDU having a SYN, SYN-ACK or ACK, and the network convergence sub-layer (NCS) constructs a L2 NCS PDU using a designated format with the SDU in the payload and context information in the header.

Abstract: A communication system includes a repetitive orthogonal frequency-division multiplexing (“ROFDM”)transmitter communicating with an ROFDM receiver. The ROFDM transmitter includes an ROFDM modulator, which includes a K-point Fast Fourier Transform receiving a block of time-domain data symbols and generating an initial orthogonal frequency-division multiplexing symbol. The initial orthogonal frequency-division multiplexing symbol is based on a block of frequency-domain data symbols corresponding to the block of time-domain data symbols. The initial orthogonal frequency-division multiplexing symbol includes an ending part. The ROFDM modulator includes an orthogonal frequency-division multiplexing symbol repeater generating a repetitive orthogonal frequency-division multiplexing symbol by repeatedly reproducing the initial orthogonal frequency-division multiplexing symbol.