摘要:
Provided are a privacy information transmission method, an apparatus, a computer device and a computer-readable medium. The method comprises: when an identity registration request message is received, generating authentication information, and using a first private key to encrypt the authentication information, the identity registration request message is sent through a terminal device by means of a base station; sending a first identity recognition request message to the terminal device, the first identity recognition request message carries the encrypted authentication information; receiving an identity recognition response message returned by the terminal device, to acquire the privacy information in the identity recognition response message.
摘要:
Disclosed are a resource allocation method and apparatus for system access. The resource allocation method includes: transmitting an access request; receiving an access request response or access request responses transmitted by one or more TPs; and determining, according to the access request response, a radio resource range of a message resource set occupied by transmitting a communication message, and occupying the radio resource range to transmit the communication message to the TP corresponding to the radio resource range.
摘要:
The present document discloses a synchronization signal transmission method, synchronization method and device in a communication system. The transmission method includes: generating, by a communication node, a radio frame, the radio frame including N subframes, each subframe including M Orthogonal Frequency Division Multiplexing (OFDM) symbols and P synchronization signals, each OFDM symbol including a first Cyclic Prefix (CP) and an OFDM symbol data portion, herein data signals of the first CP are as same as data signals of a tail of the OFDM symbol data portion at a corresponding length, and N, M and P are positive integers, 0≤P≤M, and the synchronization signal includes a second CP and a synchronization signal data portion; and transmitting, by the communication node, the radio frame.
摘要:
Disclosed are an in-band pseudolite wireless positioning method, system and device, the system comprising: a base station, a pseudolite and a terminal; the base station is used to transmit identifier information to the pseudolite after correcting the transmission clock of the pseudolite, and transmit a pseudolite array and positioning correction information to a terminal; the pseudolite is used to generate a random positioning signal sequence according to the identifier information, and utilizes the positioning link having the same frequency band as the base station wireless system to transmit a positioning signal according to the transmission clock and the random positioning signal sequence; and the terminal is used to generate a random positioning signal sequence of the pseudolite according to the pseudolite array and the positioning correction information, and match the received positioning signal according to the random positioning signal sequence to obtain the arrival time of the positioning signal, and obtain through calculation the position coordinates of the terminal according to the position coordinates of the pseudolite and the arrival time.
摘要:
Embodiments of the present application relate to the technical field of communications. Disclosed are a key generation method, apparatus, an electronic device, and a storage medium. The key generation method of the present application comprises: obtaining a channel characteristic parameter of a wireless channel; generating a key according to the channel characteristic parameter; capturing after continuously generating multiple keys, a first key matrix by means of a sliding window having a preset length, to obtain a second key matrix; determining a correlation between keys in the second key matrix, and performing key substitution on the keys in the second key matrix when the correlation between the keys in the second key matrix is greater than a preset threshold; and adding the keys in the second key matrix to a key pool until the number of keys in the key pool reaches a preset number.
摘要:
A determination method for a transmission channel in a millimeter wave system, a signal transmission method, a determination apparatus for a transmission channel in a millimeter wave system, a signal transmission apparatus, a millimeter wave system, a computer device, and a computer-readable medium. The determination method comprises: constructing a beam space channel model of a millimeter wave system, wherein the beam space channel model uses a matrix having sparsity to represent sub-beams in the millimeter wave system, and elements in the matrix respectively represent channel gains of the sub-beams in the millimeter wave system; obtaining a beam space channel matrix of a valid user in the beam space channel model; and using an energy-concentrated sub-beam in the beam space channel matrix of the valid user as a transmission channel. For the sub-beams of the beam space channel model, the energy-concentrated sub-beam is selected to be reserved, such that the system secrecy capacity is improved, and there is no need to sacrifice part of transmitting power to serve as artificial noise.
摘要:
The present invention discloses a wireless synchronization method and a wireless synchronization system. The method includes: determining a synchronization path between a first node and a second node (S110); and using the synchronization path to synchronize the first node and the second node (S120), herein the synchronization path is composed of one or more segments of visible paths, and the visible path is a direct path which connects two nodes visible to each other. The present invention further discloses a computer storage medium.