Huawei Technologies Co., Limited

Nuctech Company Limited

Changzhou Entry-exit Inspection and Quarantine

Xin Xue

Le Liu

Wei Bin Lin

Min Yan

Jian Yu

Zhiqiang Chen

Yuanjing Li

Sheng Liu

Yalin Liu

Tong Zhang

Ningjuan Wang

Hua Peng

Shimon Shilo

Doron Ezri

Genadiy Tsodik

Oded Redlich

Wei Lin

Jin Ping Lin

Yangtian Zhang

Zhongxia Zhang

Xiaohui Yang

Wen He

Zhongrong Yang

Yaoxin Wang

Bo Tang

Haijun Yu

Ju Cao

Qiwang Gao

Shimi Shilo

Zeying Wu

Yuejin Qiu

An HE-LTF transmission method is provided, including: determining, based on a total number Nof space-time streams, a number Nof OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number Nof OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

Data transmission method and apparatus in wireless local area network

The embodiments of the present disclosure disclose a self-service express cabinet and a package delivery method. The self-service express cabinet may include: a cabinet body including a sending window and a chamber, wherein the sending window may be connected with the chamber, and the sending window may be disposed on a surface of the cabinet body; a human-machine interaction device disposed on the cabinet body for information interaction with a user; an inspection device disposed in the chamber and capable of performing security inspection on a package dropped into the chamber for delivery, wherein the inspection device may have a receiving end and an output end, and at least part of the receiving end may be located within a scope of a forward projection of the sending window; and at least one storage component disposed in the chamber and corresponding to the output end.

Self-service express cabinet and package delivery method

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.

Method for transmitting HE-LTF sequence and apparatus

An HE-LTF transmission method is provided, including: determining, based on a total number Nof space-time streams, a number Nof OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1&#xd7; mode and that is mentioned in implementations; and sending a time-domain signal according to the number Nof OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

A data communication method and a related apparatus are provided, and the data communication method includes: constructing, by an access device, a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device; and broadcasting, by the access device, the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. By using the present invention, data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.

Data communication method and related apparatus

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11 ax.

An access device constructs a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device. The access device broadcasts the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. Data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.

A pilot sequence sending method and apparatus are provided. In the disclosure, after first-time masking is performed on a pilot sequence based on a cyclic orthogonal matrix, second-time masking is performed on the pilot sequence on which first-time masking has been performed, so that a PAPR of the pilot sequence on which second-time masking has been performed is less than a PAPR of the pilot sequence on which first-time masking has been performed, and further, orthogonality of the pilot sequence on which second-time masking has been performed can be higher than that of the pilot sequence on which first-time masking has been performed. This ensures accuracy of channel estimation and frequency offset detection.

Pilot sequence sending method and apparatus

The present application provides a method for determining a CP. A STA performs channel estimation, determines a CP value according to the result of channel estimation, and sends indication information to an AP, wherein the indication information is used for indicating the CP value, so that the AP may choose a suitable CP according to the indication information. Therefore, overhead may be reduced and system throughput may be optimized.

Method and apparatus for determining CP value

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Shenzhen, China

Xin Xue