A radio physical layer protocol data unit (PPDU) sending method includes: obtaining, a radio physical layer protocol data unit (PPDU), wherein the PPDU includes a high efficiency-signal field A (HE-SIG-A) and a high efficiency-signal field B (HE-SIG-B), the HE-SIG-A includes a field indicating a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the HE-SIG-B, and wherein a value of the field indicates one of the following: that the quantity of OFDM symbols included in the HE-SIG-B is greater than or equal to 16, or the quantity of OFDM symbols included in the HE-SIG-B; and sending the PPDU.

A receiver in a communication system may include a buffer and hardware. The buffer may be configured to store a communication signal comprising one or more pulses representative of data. The hardware may be configured to determine whether a data authentication pulse has been superimposed over at least one of the one or more pulses, and authenticate, based on the determination of whether the data authentication pulse has been superimposed over at least one of the one or more pulses, the one or more pulses as a valid representation of the data.

Various embodiments of the present disclosure provide a method for information sharing. The method which may be performed by a first network node comprises receiving a first measurement report from a terminal device. The terminal device may be capable of communicating with the first network node over a first connection. The method further comprises transmitting first measurement information based at least in part on the first measurement report to a second network node. The terminal device may be capable of communicating with the second network node over a second connection.

The present disclosure provides systems and methods for enhanced wireless communication security. The preambles used for the identification of an upcoming wireless communication may be periodically changed (e.g., dynamic), on a time basis, based on a secret key function shared between the communicating parties. In this way, only the intended parties are able to recognize the start of an ongoing communication, synchronize with the transmitters, and access the information contained therein. An attacker, being unaware of the specific preamble sequence used for the synchronization, will not recognize the pattern of the communication, and thus will be unable to recognize when communications are ongoing. Additional authentication measures may also be implemented with the transmissions.

Embodiments of the present disclosure describe methods and apparatuses for group based beam reporting and channel state information reference signal configuration in new radio systems.

A communication method, including: receiving a reference signal, where the reference signal is used for channel measurement; sending CSI, where the CSI is used to indicate one or more measured values, and the measured values are used to determine a precoding matrix, or the measured values are a precoding matrix. The measured value is related to a first group of base vectors and a second group of base vectors, or the measured value is related to a Kronecker product of the first group of base vectors and the second group of base vectors; the first group of base vectors includes an inverse discrete Fourier transform OFT vector or a Kronecker product of two IDFT vectors, and the second group of base vectors include a discrete Fourier transform DFT vector.

Disclosed are a method for transmitting and receiving channel state information in a wireless communication system and an apparatus therefor. Specifically, a method for transmitting, by a terminal, channel state information (CSI) in a wireless communication system comprises the steps of: receiving a CSI process setting from a base station; and reporting, to the base station, CSI corresponding to a CSI process set by the CSI process setting, wherein when the CSI process is set to a beamformed CSI-reference signal (CSI-RS) type, and the CSI process is associated with a single CSI-RS resource, a codebook used for deriving the CSI may be indicated by the CSI process setting.

A system and method for providing confidentiality against eavesdropping and authentication against impersonation attacks for advanced wireless communication systems are disclosed. The method exploits ARQ as a MAC layer mechanism and artificial noise as a physical layer mechanism with maximal ratio combining to achieve secrecy. An artificial noise, not requiring class space in the channel, is designed and added to the data package based on the QoS requirements and channel condition between legitimate parties. Basically, a special AN, which does not require null-space in the channel, is designed based on the QoS requirements and the channel condition between the legitimate parties and injected to the data packet. If the same packet is requested by the legitimate receiver (Bob), an AN cancelling signal is designed and added to the next packet. Then, an AN-free packet is obtained by using MRC process at Bob, while deteriorating the eavesdropper's performance.

A pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4.sup.th-Generation (4G) communication system, such as long-term evolution (LTE), is disclosed. The system includes an apparatus of a base station. The apparatus may include: at least one transceiver, and at least one processor connected to the at least one transceiver, where the at least one processor is configured to transmit to a terminal, configuration information of reference signals for beam management regarding a transmit (Tx) beam of the BS or a receive (Rx) beam of the terminal, transmit the reference signals to the terminal, and the configuration information comprises information related to a number of repetitions of the reference signals.

Certain aspects of the present disclosure provide techniques for beam management using adaptive learning. Certain aspects provide a method that can be performed by a node, such as user equipment (UE) or a base station (BS). The node determines one or more beams to utilize for a beam management procedure using adaptive learning. The node performs the beam management procedure using the determined one or more beams. In some aspects, the node uses an adaptive reinforcement learning algorithm to select beams for measurement in beam discovery procedure. The node may adaptive the beam management algorithm based on feedback associated with the beam selection, such as based on a throughput achieved using a beam pairing determined during the beam management procedure.