Abstract: In order to enable a UE receiving a narrowband signal transmitted using in-band resources to use the LTE reference signals to assist the UE in receiving the narrowband signal using an in-band deployment, a phase rotation employed by the base station may be fixed relative to a known reference position in time. An apparatus for wireless communication at a base station may determine a phase offset for a narrowband signal for transmission using wideband resources, the phase offset having a relationship to a reference point in time and transmit the narrowband signal using the determined phase offset. An apparatus for wireless communication at a UE may receive a narrowband signal having a frequency location within a wideband signal and rotate a symbol of the wideband signal by a per symbol phase offset having a relationship of the phase offset to a reference point in time.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive an indication of a set of corresponding physical downlink control channel (PDCCH) candidates that includes at least a first PDCCH candidate included in a first control resource set (CORESET) and a corresponding second PDCCH candidate included in a second CORESET, wherein the first CORESET and the second CORESET have different transmission configuration indication (TCI) states; and selectively perform, based at least in part on a configuration, at least one of: independent decoding of the first PDCCH candidate, independent decoding of the second PDCCH candidate, or joint decoding of the first PDCCH candidate and the second PDCCH candidate. Numerous other aspects are provided.

Abstract: A base station apparatus includes: a memory; and processor circuitry coupled to the memory, wherein the processor circuitry is configured to: execute notification processing that includes transmitting a notification signal of a first information associated with a reliability of data transmission, execute transmission processing that includes transmitting a reference signal in two or more frequency bands, and execute reception processing that includes receiving a measurement report that includes a channel quality information of the frequency bands, the channel quality information being derived in accordance with the reliability of the data transmission associated with the first information.

Abstract: This application discloses a resource configuration method and an apparatus, applied to a two-level control channel structure that includes a level-1 control channel and a level-2 control channel. The method includes: obtaining, by a base station, receive bandwidth of a terminal; generating first information based on the receive bandwidth, where the first information is used for determining a frequency domain resource range used by a downlink data channel; generating second information based on the first information, where the second information is used to indicate a location of the downlink data channel within the frequency domain resource range; and sending, by the base station, the first information and the second information to the terminal.

Abstract: A semi-blind channel estimation method and apparatus are provided. The semi-blind channel estimation method includes: step S1: obtaining data that includes a first training sequence and that is received by a receive end; step S2: performing minimum mean square error channel estimation based on the data and the prestored first training sequence, to obtain a channel parameter matrix; step S3: detecting the first training sequence by using a least square detection algorithm, to obtain estimated data; and step S4: using the estimated data as a second training sequence, replacing the first training sequence in step S2 with the second training sequence, and cyclically performing step S2 and step S3 on the second training sequence, until a channel parameter matrix obtained last time is the same as a channel parameter matrix obtained this time, and then stopping circulation, to estimate a final channel parameter matrix.

Abstract: In a base station, a transmission unit transmits a downlink control signal and downlink data assigned by the downlink control signal in a time unit including a downlink time resource for the downlink control signal, a downlink time resource for the downlink data, and an uplink time resource for a response signal for the downlink data. A reception unit receives the response signal in the time unit. A transmission bandwidth of the response signal is equal to or lower than a transmission bandwidth of the downlink data corresponding to the response signal.

Abstract: Techniques and examples of efficient detection of a transmission session in New Radio unlicensed spectrum (NR-U) are described. An apparatus (e.g., user equipment (UE)) detects presence of an indication from a base station of a wireless network in an NR-U. The apparatus determines that a transmission opportunity (TXOP) follows the indication responsive to the detecting. The apparatus then receives a downlink (DL) transmission in the NR-U from the base station during the TXOP.

Abstract: The embodiments of the invention provide an information transmission method and apparatus. The method comprises: determining, from a plurality of numerologies, a target numerology, and transmitting or receiving, according to the target numerology, a synchronization signal.

Abstract: At an outbound end of a tunnel from a first data network, a packet is analyzed to determine whether the packet is to be directed to a local target in the first data network or to be sent over the tunnel to a remote target in a second data network. A target address of the packet is present in both the first data network and the second data network. When the packet is to be directed to the remote target in the second data network, an octet in the target address of the packet is changed from a first value to a second value, the changing forming a modified packet. When the second value is stored in the octet, the modified packet is caused to be sent to the tunnel for delivery to the second data network.

Abstract: A base station device includes: a receiver, which, in operation, receives signals from one or more other base station devices in a system using an adjacent frequency band; a searcher, which, in operation, searches for one or more center frequencies of signals from the one or more other base station devices; a selector, which, in operation, selects a synchronization target base station device from which a respective center frequency has been acquired from among the one or more other base station devices; and a controller, which, in operation, sets an operation parameter to establish synchronization with transmission and reception timings of the synchronization target base station device.

Abstract: Methods, systems, and devices for wireless communications are described. One method may include identifying a baseline demodulation reference signal (DMRS) mapping pattern for mapping of DMRS data to resource elements (REs) within a shortened transmission time interval (sTTI) based on a number of layers for which a user equipment (UE) is configured. In some examples, the number of layers may be configured on a per-unit basis. The method may further include determining a shifted DMRS mapping pattern based on the baseline DMRS mapping pattern and a reference signal configuration associated with reference signals other than a DMRS, configuring REs within the sTTI according to the shifted DMRS mapping pattern, and transmitting the configured REs.

Abstract: A data processing method comprises: receiving a data packet related to a service. The method also comprises determining whether predefined configuration information indicates a priority of the service. The method further comprises in response to the configuration information indicating the priority of the service, adding an indication of the priority into the data packet. The above method can enable the underlying network devices to adopt a suitable strategy to process data packets from services of different priorities, so as to improve the transmission efficiency of the data packets and enhance user experience of the services.

Abstract: Disclosed in the embodiments of the present application are a parameter configuration method and related products, the method includes: receiving, by a terminal, at least one preset parameter of a phase tracking reference signal PT-RS from a network device, wherein the at least one preset parameter of the PT-RS is configured for at least one bandwidth part BWP of the terminal, and the at least one preset parameter is used for indicating resource information that needs to be used by the terminal when the terminal sends or receives the PT-RS on the at least one BWP.

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes encoding service data of Physical Layer Pipes (PLPs); bit interleaving the encoded service data; building at least one signal frame including the bit interleaved service data; and modulating data in the at least one signal frame by Orthogonal Frequency Division Multiplexing (OFDM) method; inserting a preamble at a beginning of each of the at least one signal frame after the modulating step; and transmitting the broadcast signals having the modulated data, wherein the preamble includes two OFDM symbols and each of the two OFDM symbols is generated by a sequence multiplication, and wherein each of the two OFDM symbols in the preamble includes information for an emergency alert.

Abstract: The embodiments of the invention provide an information transmission method and apparatus. The method comprises: determining, from a plurality of numerologies, a target numerology, and transmitting or receiving, according to the target numerology, a synchronization signal.

Abstract: User terminal 20 configured to perform MIMO transmission with radio base station 10 includes: control section 200 configured to generate first channel estimation information based on a reference signal transmitted by radio base station 10, and perform an operation for elimination of an interference signal on the first channel estimation information to generate second channel estimation information; and postcoder 208 configured to perform postcoding, based on the second channel estimation information, on a data signal to be transmitted by the radio base station 10, so as to detect a desired signal.

Abstract: Methods are described for generating encrypted messages and unicast/multicast transmitting the encrypted messages to one or more aircraft using Automatic Dependent Surveillance-Broadcast (ADS-B) transmission. Corresponding system for communicating messages to an aircraft using ADS-B link is also provided.

Abstract: A method for reference signal configuration of a wireless communication system is provided. The method includes the following actions. An uplink channel is received by a base station from a user equipment (UE). A frequency offset and a coherence time effected by a phase noise and a Doppler shift are estimated by the base station in response to the uplink channel. A reference signal format is configured by the base station in response to the frequency offset and the coherence time effected by the phase noise and the Doppler shift. A physical uplink shared channel is configured by the UE in response to the reference signal format.

Abstract: A UE operating in a RAN may be configured to receive new radio, NR, radio resource control, RRC, messages from a secondary network node. The NR RRC messages may each contain a number that the secondary network node added to the NR RRC messages to indicate their respective order in a sequence which the NR RRC messages were sent by the secondary network node. The NR RRC messages may each contain parameters that the UE uses to configure its communications through a NR interface with the secondary network node. The UE may send NR RRC complete messages toward the secondary network node responsive to receipt of the NR RRC messages, wherein the NR RRC complete messages each contain an indication of the NR RRC message that was received. The UE may control the sending of the NR RRC complete messages to indicate to the secondary network node whether the NR RRC messages are received in an order that is the same as the sequence.

Abstract: Disclosed is a method by which a terminal reports beam information to a base station in a wireless communication system. The method comprises the steps of: receiving, from the base station, a beam measurement reference signal corresponding to each of a plurality of candidate transmission beams; determining at least one best transmission beam among the plurality of candidate transmission beams on the basis of the beam measurement reference signal; determining at least one worst transmission beam corresponding to each of the at least one best transmission beam among the plurality of candidate transmission beams by using a best reception beam corresponding to the at least one best transmission beam among candidate reception beams; reporting, to the base station, information on the at least one best transmission beam and the at least one worst transmission beam corresponding to the at least one best transmission beam.