H04J3/02

Transmission of physical broadcast channel (PBCH) contents
11039334 · 2021-06-15 · ·

Technology for transmitting physical broadcast channel (PBCH) contents is disclosed. An evolved node B (eNB) may configure one or more repetitions of PBCH content for transmission, to a user equipment (UE), from a cell at a selected time interval. The eNB may select a scrambling code for the one or more repetitions of PBCH content transmitted from the cell. The eNB may apply the scrambling code to one or more repetitions of PBCH content.

Method and System for Frequency Offset Modulation Range Division MIMO Automotive Radar
20210173042 · 2021-06-10 · ·

A radar system, apparatus, architecture, and method are provided for generating a transmit reference or chirp signal to produce a plurality of transmit signals having different frequency offsets from the transmit reference signal for encoding and transmission as N radio frequency encoded transmit signals which are reflected from a target and received at a receive antenna as a target return signal that is down-converted to an intermediate frequency signal and converted by a high-speed analog-to-digital converter to a digital signal that is processed by a radar control processing unit which performs fast time processing steps to generate a range spectrum comprising N segments which correspond, respectively, to the N radio frequency encoded transmit signals transmitted over the N transmit antennas.

Method and System for Frequency Offset Modulation Range Division MIMO Automotive Radar
20210173042 · 2021-06-10 · ·

A radar system, apparatus, architecture, and method are provided for generating a transmit reference or chirp signal to produce a plurality of transmit signals having different frequency offsets from the transmit reference signal for encoding and transmission as N radio frequency encoded transmit signals which are reflected from a target and received at a receive antenna as a target return signal that is down-converted to an intermediate frequency signal and converted by a high-speed analog-to-digital converter to a digital signal that is processed by a radar control processing unit which performs fast time processing steps to generate a range spectrum comprising N segments which correspond, respectively, to the N radio frequency encoded transmit signals transmitted over the N transmit antennas.

DATA TRANSMISSION METHOD AND DEVICE, AND STORAGE MEDIUM
20210195474 · 2021-06-24 ·

Disclosed is a data transmission method. The method comprises: a terminal device performing data transmission with a first network device and/or a second network device according to a time division multiplexing mode, the time division multiplexing mode indicating information associated with data transmission performed between the terminal device and the first network device and/or the second network device. Further disclosed are another data transmission method, a terminal device, and a storage medium.

DATA TRANSMISSION METHOD AND DEVICE, AND STORAGE MEDIUM
20210195474 · 2021-06-24 ·

Disclosed is a data transmission method. The method comprises: a terminal device performing data transmission with a first network device and/or a second network device according to a time division multiplexing mode, the time division multiplexing mode indicating information associated with data transmission performed between the terminal device and the first network device and/or the second network device. Further disclosed are another data transmission method, a terminal device, and a storage medium.

TRANSMITTING METHOD, RECEIVING METHOD, TRANSMITTING APPARATUS, AND RECEIVING APPARATUS

A transmitting method includes: configuring a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating time resources and frequency resources to a plurality of transmission data; and transmitting the frame, wherein the frame includes a first period in which a preamble which includes information on a frame configuration of the frame is transmitted, and a second period in which the plurality of transmission data are transmitted by at least one of time division and frequency division, and among the plurality of OFDM symbols, OFDM symbols included in the second period include pilot symbols arranged along a time axis with a predetermined spacing therebetween, and a predetermined number of data symbols.

TRANSMITTING METHOD, RECEIVING METHOD, TRANSMITTING APPARATUS, AND RECEIVING APPARATUS

A transmitting method includes: configuring a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating time resources and frequency resources to a plurality of transmission data; and transmitting the frame, wherein the frame includes a first period in which a preamble which includes information on a frame configuration of the frame is transmitted, and a second period in which the plurality of transmission data are transmitted by at least one of time division and frequency division, and among the plurality of OFDM symbols, OFDM symbols included in the second period include pilot symbols arranged along a time axis with a predetermined spacing therebetween, and a predetermined number of data symbols.

SMOOTHING-TECHNOLOGY-BASED PHYSICAL LAYER BLIND AUTHENTICATION METHOD AND SYSTEM FOR TIME-VARYING FADING CHANNEL
20210136573 · 2021-05-06 · ·

Provided is a physical layer blind authentication method for a time-varying fading channel based on a smoothing technique. The method includes: transmitting, by a transmitter, a carrier signal to a wireless channel, where the carrier signal includes an authentication signal, a pilot signal and an information signal, the authentication signal is superimposed on the pilot signal, and the wireless channel is the time-varying fading channel; receiving, by a receiver, the carrier signal, and performing blind known interference cancellation (BKIC) processing and differential signal processing on the carrier signal to obtain a target authentication signal, where in the BKIC processing, the pilot signal is cancelled through the smoothing technique by using adjacent symbols; obtaining, by the receiver, a reference signal based on a key and the pilot signal, performing the differential signal processing on the reference signal to obtain a reference authentication signal, and calculating a correlation between the target authentication signal and the reference authentication signal to obtain a test statistic; and comparing the test statistic with a prescribed threshold to determine whether the carrier signal is capable of passing authentication.

SMOOTHING-TECHNOLOGY-BASED PHYSICAL LAYER BLIND AUTHENTICATION METHOD AND SYSTEM FOR TIME-VARYING FADING CHANNEL
20210136573 · 2021-05-06 · ·

Provided is a physical layer blind authentication method for a time-varying fading channel based on a smoothing technique. The method includes: transmitting, by a transmitter, a carrier signal to a wireless channel, where the carrier signal includes an authentication signal, a pilot signal and an information signal, the authentication signal is superimposed on the pilot signal, and the wireless channel is the time-varying fading channel; receiving, by a receiver, the carrier signal, and performing blind known interference cancellation (BKIC) processing and differential signal processing on the carrier signal to obtain a target authentication signal, where in the BKIC processing, the pilot signal is cancelled through the smoothing technique by using adjacent symbols; obtaining, by the receiver, a reference signal based on a key and the pilot signal, performing the differential signal processing on the reference signal to obtain a reference authentication signal, and calculating a correlation between the target authentication signal and the reference authentication signal to obtain a test statistic; and comparing the test statistic with a prescribed threshold to determine whether the carrier signal is capable of passing authentication.

Physical broadcast channel design

Briefly, in accordance with one or more embodiments, apparatus of an evolved NodeB (eNB) comprises circuitry to configure one or more parameters for a 5G master information block (xMIB). The xMIB contains at least one of the following parameters: downlink system bandwidth, system frame number (SFN), or configuration for other physical channels, or a combination thereof. The apparatus of the eNB comprises circuitry to transmit the xMIB via a 5G physical broadcast channel (xPBCH) on a predefined resource, the xPBCH comprising a xPBCH. The xPBCH may use a DM-RS based transmission mode, and a beamformed xPBCH may be used for mid band and high band.