Huawei Technologies Co., Limited

Chunhui Le

Ning Yang

Jing Li

Bo Wang

Senbao Guo

Weihua Wang

Bin Liu

Yan Liu

Ying Zhang

Li Wan

Jingjing Zhang

Zhi Yang

Guibao Li

Xi Chen

Changyu Guo

Yicheng Zheng

Heng Qin

Qiang Huo

A method for obtaining information about a channel and a related apparatus are disclosed. The method includes: obtaining first feedback signals from a passive inter-modulation source; obtaining first update direction information based on the first feedback signals; and obtaining information about a channel with the passive inter-modulation source based on the first update direction information. According to the method and the apparatus, complexity of obtaining the information about the channel with the passive inter-modulation source can be reduced, time and power consumption required for obtaining the information about the channel can be reduced, and accuracy of the information about the channel can be improved.

Method for obtaining information about a channel and apparatus

Embodiments of this application disclose a user pairing method and a related device. The method includes: determining a first generation parameter of a first base sequence of a first user and a second generation parameter of a second base sequence of a second user, and the second base sequence is used to generate a second uplink reference signal of the second user; determining multiplexing evaluation information based on the first generation parameter and the second generation parameter, where the multiplexing evaluation information may include correlation strength between sequences and interference leakage width; determining, based on the multiplexing evaluation information, whether the first user and the second user are successfully paired; and determining, that the first user and the second user multiplex a same communication resource for communication based on being successfully paired.

User pairing method and related device

The present disclosure discloses example method, apparatus, and storage medium for improving multi-user multiplexing performance. One example method includes configuring base sequence identifiers by a network device for a plurality of terminals by using radio resource control (RRC) signaling, where there is no orthogonality between base sequences indicated by the base sequence identifiers of the plurality of terminals. Sounding reference signal (SRS) detection is performed on the plurality of terminals based on a quasi-orthogonal sequence, to obtain channel information for sending an SRS by each terminal. Channel prediction is performed based on the channel information of each terminal, to obtain a channel prediction result of each terminal.

Method and apparatus for improving multi-user multiplexing performance, device, and storage medium

This application discloses a channel estimation method and apparatus. When time-domain channel estimation is performed on a first slot, the first slot and at least one second slot are first determined. The first slot and each second slot form continuous slots. Then, a first signal corresponding to the first slot and a second signal corresponding to each second slot are obtained, and a time-domain channel estimate for the first slot is determined based on the first signal and each second signal. In embodiments of this application, when a time-domain channel estimate for a specific slot is determined, time-domain channel estimation is performed by using time-domain correlation of channels in combination with signals of a plurality of slots, so as to obtain a more accurate channel estimation result, thereby improving baseband demodulation performance.

Channel estimation method and apparatus

A method includes: adjusting, by a base station based on a timing adjustment amount, an access timing advance corresponding to user equipment to obtain a target timing advance, where the access timing advance is a timing advance obtained when the user equipment randomly accesses the base station; determining, by the base station based on the target timing advance, whether the user equipment meets a trigger condition; and if the user equipment meets the trigger condition, sending, by the base station, a trigger signal to the user equipment, where the trigger signal is used to trigger the user equipment to send a first random access request to the base station.

Communication connection method and base station

Embodiments of the present invention relate to a method and an apparatus for processing random access in a wireless communication network, and a processing method of a user equipment and an apparatus. The method for processing random access in the communication network includes: the base station receives a first Zadoff-Chu sequence and a second Zadoff-Chu sequence that are sent by a user equipment, a dof the first Zadoff-Chu sequence is smaller than a dof the second Zadoff-Chu sequence; the base station estimates an error range for a round trip delay RTD of the user equipment according to the first Zadoff-Chu sequence, estimates, according to the second Zadoff-Chu sequence, the RTD within the error range for the RTD or a frequency offset of an uplink signal of the user equipment. The problem that the user equipment with a frequency offset accesses a network is solved.

Methods and apparatus for random access in a communication system

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Shanghai, China

Chunhui Le