Huawei Technologies Co., Limited

Tencent Technology (shenzhen) Company Limited

Xi Yan

Huang Huang

Qing Huang

Guangjian Wang

Runjia Huang

Hongfa Qiu

Xucheng Tang

Bohan Cai

Junjie Liang

Yanlan Liu

Long Luo

Yan Yun Cui

Huixiao Ma

Wai Kong Raymond Leung

Wancheng Zhou

Jingqiong Feng

Zhihao Chen

Xinhua Ye

Guojian Tan

Qiuchen Jin

Wen Tong

Kunpeng Liu

Sergio Benedetto

Guido Montorsi

Sainan Li

Yue Liu

Yanxing Zeng

Weiguang Liang

Dmitri Riabkov

Jinhong Yuan

Jun Ning

Genxi Xu

Raymond WK Leung

Riabkov Dmitri

A reminder method includes: displaying a group session interface of the group session, the group session being a group session in which a group member is allowed to use a group tool, the group tool being a program function that supports use by at least two group members together; displaying a group tool message on the group session interface, the group tool message including an entry link of the group tool; displaying, in response to that the group tool message is a message with a group attribute, a reminder control corresponding to the group tool in the group session interface, the reminder control being used as a reminder of an item in the group tool. The present disclosure provides a human-computer interaction solution for effectively transmitting the group tool message to the group member.

Reminder generation method and apparatus in group session, device and medium

A message transmitting method and apparatus provide for a subtle reminder function. Head portraits of at least two user accounts are displayed in a first chat interface. The at least two user accounts include a first user account and a second user account. An interaction message is generated in response to an interaction with the head portrait of the second user account. The interaction message is transmitted to the second user account. The interaction message is used to trigger the display of an animation of the head portrait of the second user account in a second chat interface. This provides for a new interaction between user accounts, and can provide a subtle reminder function.

Message transmitting method and apparatus, message receiving method and apparatus, device, and medium

A first device is logged in with a first user account. The first device displays an avatar of a second user account in a first user interface of the first device. In response to an interaction instruction triggered on the avatar of the second user account, the first device generates an interaction message according to a first field corresponding to the first user account, an action description field used for indicating an action performed by the first user account on the second user account, and a second field corresponding to the second user account. The first device transmits the interaction message to a second device that is logged in with the second user account.

Message transmission method, message receiving method, apparatus, device, and medium

Reminder method and apparatus in group session, device and medium

Embodiments of this application provide a modulation method and apparatus. The method includes: receiving a code word sequence, where each code word includes N bits, and the code word sequence includes at least a first code word; mapping the code word sequence into M sequences, where each sequence includes N/M bits from the first code word; mapping the M sequences into a symbol sequence, where each symbol is corresponding to M bits, the M bits are respectively from the M sequences, first bits corresponding to N/M first-type symbols are from the first code word, and second bits corresponding to N/M second-type symbols are from the first code word. Thus a signal-to-noise ratio requirement during higher order modulation lowered.

Modulation method and apparatus

Embodiments of the present invention provide a frame synchronization method and apparatus, which can reduce impact of a carrier frequency offset. In those embodiment, a solution is provided and the solution includes: obtaining a received signal of a receiving antenna; calculating an auto-correlation value of the received signal and determining a time corresponding to the auto-correlation value that is of the received signal and that meets a first preset condition, as an initial estimation time; obtaining a carrier frequency offset estimation value according to the initial estimation time, the received signal, and a frequency offset estimation algorithm, and performing frequency offset compensation on the received signal by using the carrier frequency offset estimation value; calculating a cross-correlation value and an auto-correlation value of the received signal on which the frequency offset compensation has been performed. The embodiments of the present invention are used for frame synchronization.

Frame synchronization method and apparatus

Embodiments of the present disclosure provide a signal processing method, an apparatus, and a system. The signal processing method includes acquiring a phase of each of transmit antennas when the lOFDM data symbol is sent, and acquiring a phase of each of receive antennas when the lOFDM data symbol is received. The method further includes compensating received signals of each of the receive antennas according to the phase of each of the transmit antennas when the lOFDM data symbol is sent and the phase of each of the receive antennas when the lOFDM data symbol is received, to obtain compensated signals of each receive antenna.

Signal processing method, apparatus, and system

A transmitting circuit, a transceiver, a communication system, and a method for transmitting data. The transmitting circuit includes a digital interface circuit configured to obtain, in a predetermined bandwidth, data to be sent, and decompose the data into N parallel sub digital signal flows; a digital modulation circuit configured to modulate the N sub digital signal flows to obtain N modulated signals; a frequency relocation circuit configured to perform frequency relocation on the N modulated signals; a synthesizer configured to modulate M modulated signals of the N modulated signals that have undergone frequency relocation into a bandwidth signal; a digital to analog converter configured to receive the bandwidth signal, and perform digital to analog conversion on the bandwidth signal to obtain an analog signal; an up-conversion circuit configured to receive the analog signal, and convert the analog signal into a radio frequency signal.

Transmitting circuit, transceiver, communication system, and method for transmitting data

Embodiments of the present invention provide a method for signal compensation. The method includes: receiving, by a receiver via N receiving antennas, a plurality of channel estimation preamble signals sent by M transmitting antennas of a remote transmitter, wherein the plurality of channel estimation preamble signals contain measurement signals of the M transmitting antennas; determining, by the receiver, channel estimation parameters and channel phase shift parameters according to the measurement signals of the M transmitting antennas of the remote transmitter; and determining, by the receiver, signal compensation according to the channel estimation parameters and the channel phase shift parameters. According to the method for signal compensation and the multiple-input multiple-output orthogonal frequency division multiplexing communication system provided by the embodiments of the present invention, accuracy of an estimated value of transmitted data is improved.

Multiple-input multiple-output orthogonal frequency division multiplexing communication system and method for signal compensation

The present invention provides a signal demodulation method and device. The method includes: obtaining a symbol probability parameter, where the symbol probability parameter comprises: an amplitude rand a phase angle &#x3c6;of a receive signal, an amplitude rand a phase angle &#x3c6;of each constellation point xin a decision constellation point set, and a standard deviation &#x3c3;of Gaussian noise and a standard deviation &#x3c0;of phase noise; calculating, according to the symbol probability parameter, a symbol probability that a transmit signal is each constellation point xin the decision constellation point set; and performing demodulation according to the symbol probability, and outputting demodulation information. The present invention improves an anti-phase-noise capability.

Signal demodulation method and device

A method for encoding or decoding an LDPC code with variable code lengths is provided in an embodiment of the present invention. The method includes: obtaining a base exponential matrix of an LDPC code and grouping code lengths during construction of the base exponential matrix; correcting the base exponential matrix according to a grouping correction factor to obtain an exponential matrix of the group corresponding to the grouping correction factor; extending the exponential matrix by using an extension factor of a code length in the group to obtain an LDPC matrix corresponding to the code length; and implementing encoding or decoding by using the LDPC matrix.

Method for encoding or decoding LDPC code with variable length, device, encoder, and decoder

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Shenzhen, China

Xi Yan