Abstract: A co-channel interference cancellation method and apparatus are provided. The method includes: obtaining effective interference by filtering co-channel interference according to a preset interference strength threshold, and obtaining a plurality of effective interference subgroups by grouping the effective interference; obtaining a reference interference sub-signal corresponding to the effective interference subgroup, by delaying a reference interference signal according to a determined interference delay of each effective interference subgroup; after each reference interference sub-signal passes through a corresponding adaptive interference reconstruction filter, obtaining a reconstructed interference signal by overlaying each reference interference sub-signal; and performing a subtraction operation on a received signal and the reconstructed interference signal. In this way, spectrum consumption is greatly reduced, and implementation is simple.

Abstract: The present disclosure provides a symbol synchronization method and apparatus. By means of the symbol synchronization method and apparatus, a timing location is adjusted outside an adaptive loop. In addition, the adaptive loop proceeds to according to an original function of the adaptive loop. That is, the timing location is stabilized to an initial symbol-synchronization location, and the timing location is then further corrected and adjusted. Therefore, impact of an error of a timing location on symbol synchronization is eliminated by correcting the timing location, and positioning accuracy of a symbol-synchronization location is improved.

Abstract: Embodiments of the present invention disclose a co-channel interference cancellation method and apparatus. The method includes: obtaining effective interference by filtering co-channel interference according to a preset interference strength threshold, and obtaining a plurality of effective interference subgroups by grouping the effective interference; obtaining a reference interference sub-signal corresponding to the effective interference subgroup, by delaying a reference interference signal according to a determined interference delay of each effective interference subgroup; after each reference interference sub-signal passes through a corresponding adaptive interference reconstruction filter, obtaining a reconstructed interference signal by overlaying each reference interference sub-signal; and performing a subtraction operation on a received signal and the reconstructed interference signal. In this way, spectrum consumption is greatly reduced, and implementation is simple.

Abstract: The present disclosure provides a symbol synchronization method and apparatus. By means of the symbol synchronization method and apparatus, a timing location is adjusted outside an adaptive loop. In addition, the adaptive loop proceeds to according to an original function of the adaptive loop. That is, the timing location is stabilized to an initial symbol-synchronization location, and the timing location is then further corrected and adjusted. Therefore, impact of an error of a timing location on symbol synchronization is eliminated by correcting the timing location, and positioning accuracy of a symbol-synchronization location is improved.

Abstract: The present invention discloses an information processing method and apparatus, including: obtaining a local to-be-transmitted signal by using a local transmitter, and inserting first pilots and second pilots, where the first pilots are inserted from a first position of the local to-be-transmitted signal, the second pilots are inserted from a second position of the local to-be-transmitted signal; obtaining a local transmit signal; obtaining a peer transmit signal, where the peer transmit signal is sent after third pilots and fourth pilots are inserted, the third pilots are inserted from a third position of the peer transmit signal, the fourth pilots are inserted from a fourth position of the peer transmit signal, the first pilot is orthogonal to the fourth pilot, and the second pilot is orthogonal to the third pilot; and parsing the local transmit signal and the peer transmit signal by using the local receiver.

Abstract: The present invention relates to the field of network communications, and discloses a duplex mode adaptive method, including: querying the modulation mode configuration table, to obtain a maximum modulation mode of the current duplex mode and a maximum modulation mode of the non-current duplex mode; calculating maximum spectral efficiency of the current duplex mode according to the maximum modulation mode of the current duplex mode; calculating maximum spectral efficiency of the non-current duplex mode according to the maximum modulation mode of the non-current duplex mode; comparing the maximum spectral efficiency of the current duplex mode with the maximum spectral efficiency of the non-current duplex mode, and selecting a duplex mode whose spectral efficiency is greater as a next-step duplex mode; and switching a duplex mode of the wireless communications apparatus to the next-step duplex mode.

Abstract: Embodiments of the present invention provide a method, includes: performing channel estimation on a signal of a current channel to obtain channel information of the current channel, performing calculation processing on the channel information obtained in current channel estimation and channel information obtained in previous channel estimation to obtain a phase difference of the current channel information, dividing the phase difference of the current channel information by a time interval between two times of channel estimation to obtain residual frequency offset information of the current channel, adding the residual frequency offset information of the current channel and frequency offset information which is of the channel and obtained in a previous calculation to obtain frequency offset information of the current channel, and outputting the frequency offset information of the current channel, so as to perform frequency offset correction on the signal of the channel according to the current frequency offse

Abstract: The present invention relates to the field of network communications, and discloses a duplex mode adaptive method, including: querying the modulation mode configuration table, to obtain a maximum modulation mode of the current duplex mode and a maximum modulation mode of the non-current duplex mode; calculating maximum spectral efficiency of the current duplex mode according to the maximum modulation mode of the current duplex mode; calculating maximum spectral efficiency of the non-current duplex mode according to the maximum modulation mode of the non-current duplex mode; comparing the maximum spectral efficiency of the current duplex mode with the maximum spectral efficiency of the non-current duplex mode, and selecting a duplex mode whose spectral efficiency is greater as a next-step duplex mode; and switching a duplex mode of the wireless communications apparatus to the next-step duplex mode.

Abstract: The present invention discloses an information processing method and apparatus, including: obtaining a local to-be-transmitted signal by using a local transmitter, and inserting first pilots and second pilots, where the first pilots are inserted from a first position of the local to-be-transmitted signal, the second pilots are inserted from a second position of the local to-be-transmitted signal; obtaining a local transmit signal; obtaining a peer transmit signal, where the peer transmit signal is sent after third pilots and fourth pilots are inserted, the third pilots are inserted from a third position of the peer transmit signal, the fourth pilots are inserted from a fourth position of the peer transmit signal, the first pilot is orthogonal to the fourth pilot, and the second pilot is orthogonal to the third pilot; and parsing the local transmit signal and the peer transmit signal by using the local receiver.

Abstract: Embodiments of the present invention provide a method, includes: performing channel estimation on a signal of a current channel to obtain channel information of the current channel, performing calculation processing on the channel information obtained in current channel estimation and channel information obtained in previous channel estimation to obtain a phase difference of the current channel information, dividing the phase difference of the current channel information by a time interval between two times of channel estimation to obtain residual frequency offset information of the current channel, adding the residual frequency offset information of the current channel and frequency offset information which is of the channel and obtained in a previous calculation to obtain frequency offset information of the current channel, and outputting the frequency offset information of the current channel, so as to perform frequency offset correction on the signal of the channel according to the current frequency offse

Abstract: A playpen includes a frame member and a fabric enclosure member. The frame member includes a top frame unit and a plurality of leg units that are connected to the top frame unit. Each of the leg units includes a plurality of first fasteners that are spacedly arranged along a longitudinal direction thereof. The fabric enclosure member includes a plurality of second fasteners for engaging respectively the first fasteners for securing the fabric enclosure member to the frame member. The fabric enclosure member cooperates with the leg units and the top frame unit of the frame member to define an inner play space.

Abstract: The present invention discloses a method, device and system for determining a mail class. The method for determining a mail class includes: reading a mail head of a mail with an unknown class; extracting a first field in compliance with a first preset condition from the mail head; vectorizing combinations of the first field and its presentation forms into a first preset number of first feature vectors; taking the first feature vectors as input to a preset predictive algorithm for calculation with use of data stored for a pre-established behavior model to derive a calculation result; and determining the mail class of the mail with an unknown class from the calculation result.