Hytera Communications Corporation Limited

Zhibing Lu

Hong Chen

Huadong Li

Qingli Zhang

Xiaofeng Xin

Genxing Xiang

Fuqiang Jiao

The embodiments of the present invention disclose a method for processing channel collisions in direct mode operation and a terminal, which can ensure correct transmission of service data and improve user experience. The method in the embodiments of the present invention includes: receiving, by a first terminal, first SCI sent by a second terminal and second SCI sent by a third terminal, and detecting whether a channel collision occurs between the second terminal and the third terminal according to the first SCI and the second SCI; and if a channel collision occurs between the second terminal and the third terminal, generating, by the first terminal, a channel collision message and sending the channel collision message, so that the second terminal and the third terminal can resend the service data according to the channel collision message. The embodiment of the invention also discloses a terminal. The embodiments of the present invention can ensure the correct transmission of the service data and improve user experience.

Method for processing channel collisions in direct mode operation mode, and terminal

The present invention discloses a transmission power control method and a user equipment. A power reference value adjusted is compared with a maximum transmission power of a channel in a narrowband mode, and a minimum value between the two is selected as the transmission power in the narrowband mode to avoid data from being transmitted by a higher power in the narrowband mode, so as to effectively reduce the interference to data transmission during coexistence of the narrowband mode and a wideband mode, improve the effectiveness of transmission power control in the narrowband mode, and prolong the standby time of the user equipment to the greatest extent.

Transmission power control method and user equipment

A method, an apparatus and a system for co-frequency networking based on a trunking service are provided. The method includes: acquiring a multi-layer data flow generated through a layer mapping process; pre-coding the multi-layer data flow with a preset multi-port pre-coding method to obtain encoded data of each of the transmission trunking ports, where the multi-port pre-coding method matches with the preset plurality of transmission trunking ports; performing resource mapping on the encoded data and the trunking-specific reference signal of each of the transmission trunking ports to obtain transmission data of the transmission trunking port; and transmitting the transmission data of each of the transmission trunking ports to reception trunking ports which match with the transmission trunking port using the transmission trunking port.

Growing community of inventors

Shenzhen, China

Zhibing Lu