CN117014033A

CN117014033A - Communication method and related device

Info

Publication number: CN117014033A
Application number: CN202210467522.7A
Authority: CN
Inventors: 刘辰辰; 钱彬
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-11-07
Also published as: WO2023207602A1; TW202347980A

Abstract

The application is applied to a wireless personal area network system based on ultra-bandwidth UWB, and comprises 802.15 series protocols, such as 802.15.4a protocol, 802.15.4z protocol or 802.15.4ab protocol. The wireless local area network system can also support the next generation Wi-Fi protocol of IEEE 802.11ax, such as 802.11be, wi-Fi 7 or EHT, and further such as 802.11 series protocol wireless local area network system of 802.11be, wi-Fi 8 and the like, and sense sensing system and the like. The application provides a communication method and a related device, wherein a channel measurement frame comprises one or more measurement symbols obtained by spreading a measurement sequence by using a delta function with a length of L. The application increases the sending time of the measurement symbol, avoids obvious spectral lines of the frequency domain spectrum caused by the repetition of the measurement symbol, can support power enhancement transmission and improves the effectiveness of a wireless communication system.

Description

Communication method and related device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communications method and a related device.

Background

With the development of wireless communication technology, there is an increasing demand for ranging or context-aware applications, for example, ranging or context-aware scenarios in a wireless communication system, where an initiating station needs to frequently send a signal of channel measurement for ranging or context awareness. In order to improve the ranging or sensing accuracy, the bandwidth of the signal needs to be large enough, however, when the bandwidth of the signal is increased, the signal may interfere with devices of other narrowband systems, and thus, there is a limit to the power spectrum density of the signal. Therefore, how to improve the effectiveness of a wireless communication system under the condition of limited power spectral density is a problem to be solved.

Disclosure of Invention

The application provides a communication method and a related device, which can improve the effectiveness of a wireless communication system.

In a first aspect, the present application contemplates a channel measurement frame, referred to simply as a first channel measurement frame for ease of illustration. The first channel measurement frame includes one or more measurement symbols; wherein each measurement symbol is delta function delta with length L _L (n) spreading the measurement sequence;

wherein the measurement sequence is one or more sequences in a set of sequences comprising one or more first sequences of:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

a first sequence of length 26 {1, -1,0,1,0,0,1, -1,0, -1,0,0,0,0,0,1,0,0,0,0,0,0,0,0};

a first sequence of length 31 {1,0,1,1,0,0,1,1, -1, -1,0,0,0,1,1,0,1, -1,0, -1,0};

a first sequence {1,0,1, -1,0, -1, -1,0,1, -1, -1,0,1, -1, -1, -1, -1,1,1,1,0,0};

a first sequence {1,1,1,1,0,1,1, -1,0,1, -1,0, -1,0, -1, -1,0}; or alternatively, the first and second heat exchangers may be,

A first sequence {1, -1,0, -1, -1,0, -1, -1, -1, -1,0,1, -1,0, -1, -1,1,0,0,1,0,1,1,1,1, -1, -1,0,1, -1, -1, -1, -1}.

On the one hand, the first channel measurement frame can increase the transmission duration of the measurement symbol through spread spectrum, so that the increase of the transmission duration of the measurement symbol is facilitated, obvious spectral lines of a frequency domain spectrum caused by repetition of the measurement symbol can be avoided when the frequency domain spectrum is an integral multiple of the repetition frequency, and therefore the maximum total energy which can be transmitted can be completely transmitted under the condition of limited power spectral density, the maximum transmission power amplification factor is increased, namely, the power enhancement transmission can be supported, the coverage distance is increased, and the effectiveness of a wireless communication system is further improved.

On the other hand, the measurement sequences are one or more sequences in the sequence set, and it can be seen that the length of each sequence is smaller than 60, so that the complexity of processing the measurement frame of the channel at the receiving end is reduced. Therefore, the first channel measurement frame designed by the application can support power enhancement transmission, and reduce the processing complexity of the first channel measurement frame while increasing the coverage distance, thereby greatly improving the effectiveness of a wireless communication system.

In an alternative embodiment, the channel measurement frame may be composed of the one or more measurement symbols. In this way, the channel measurement frame does not need to include other information such as a data header, which reduces the overhead of channel measurement compared to performing channel measurement based on the data frame.

In an alternative embodiment, the set of sequences further comprises one or more of the following second sequences:

a second sequence of length 78 {1 0-1 0 0 1-1 0-1 0 1 1 0 0 1 0 0 1 0-1 0-1 0 0 0 0 0 1 1 0-1-1 0-1 1 0 1 0 0-1-1 0-1 0-1 1 0 0 1 0 0 1 0 1 0 0 1 1 0 1 0 0 0 0 0-1 1 0 1-1 0-1 };

a second sequence {1 0-1 1 0 0 1 0 1 1 0 0 0 0-1 1 0 1-1 0 0 1 0-1 0 0 0 0 0 0 0 0 0 1 0 0 0 0-1-1 0-1 0 0 0 1 0 0 1 0 1 0 0 0-1 0 0 0 0-1-0-1 0 0 1 0 0-1 1 0 1-1 0 0 0 0 1 0 0 1-1 0 1 0 0 0 0 0 0-1 0 0 1 0 1 1 0 0 1 0-1 1 0 0 0 0 1 1 0-1-1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1-1 0 1 0 0 0 1 0 0 1 0-1 0 0 0-1 0 0 0 0 1 0 0 1 0 0-1 0 0 1 1 0-1-1 0 0 0 0-1-0-1-1 0-1 0 0 0 0 0 0-1-0 };

a second sequence {1 0-1 0-1 0 0 1-1 0-1 0-1-1 0-1 0 1 1 0 1-1 0-1 1 0 0 0 0 0 1 0 1-1 0-1 0 0 1 0-1 1 0 0 1 0-1-1 0 1 1 0 1 1 0 1 0 0-1 0 0 1 1 0 0-1 0-1 0 0 1 1 0-1 0 0 1 1 0 1 1 0 1-1 0 1 1 0 0 1 0 1 1 0 1 0 0-1-1 0-1-1 0-1 0-1-1 0-1 0-1 0 1 1 0 0 0 0 0 1 0-1-1 0-1-1 0 0 1 0 1 1 0 0 1 0 1-1 0-1 0-1 0 0 1 0 0-1 1 0 0-1 0 1 0 0-1 1 0 1 0 0-1 0-1-1 0-1 1 0 0};

A second sequence {1 0 1 0 0-1-1 0 0 0 1 1 1-1 0 0 0 0 0 1-1 0-1-1 1-1 0 0 0 0-1-1 1 0 0 0 1-1-0-1 0 0 1-1-0-1 0 1 0-1 0 1 0 0 0-1-1 0 1 1 1 1 1 0 1 0 0 0-1-0-1-1-1 0 0 0-1-0-1-1-1-0-1-1 1 0 0 0 0 0 1 1 0 0-1-0-1-1 0 1 0 0 1 1 1 0-1 0-1 1 1 0 0 0 0-1 0-1 0-1-1 1 1 1 0 1 0 0 0 1 1 0 1 0 0 1-1 0-1 0 0 1-1 1 0 1-1 0 1 0 0 1 0 0 0 0 1 0 0 1-1 1 1 0 1 0 0 1 0 1 0 1-1 1-1 0 0 1 0 0-1 1 1 0-1-1 1-1 1 0 1 0 0 1-1-1-0-1-1 0-1 0 1 0 0 1-1-1-0-1 0-1-0-1 0 0 1 1 0 0 1-1 1 1 1 0-1 0 0 1 0-1 0-1 1 0 0 1 0 0 0 0 1-1-0-1 1 1 0 1 0-1-0-1 0 0 0 1 0-1-1 };

a second sequence {1 0 1 0 0 0-1 0-1 1 0 0 0 0 1 0 0-1 1 0 0 0 1 0 0 0 0-1 0 0 1 0 1 0 0 0 1 1-1 0-1 0 0 0-1 0-1 1-1 0 1 0-1 0 0 0 0-1 0-1 0 1 1 0 0 0 0-1-1-1 0 0 0 1 1 0 0-1 0 0 1 0-1 0 0 0 0-1 0 0 1 0 0 1 0 0 0-1-1-1 0 0 0 0 0 0-1-1-0-1 0-1 0 0 0 0 0 0 0 1 0-1-1 0 0 1 0-1 0 0 0 0 0 0-1-1-1 0 1 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 1-1-1 0 1 0 0 0 1 0 0 0 0-1 0 1 0 1 0 0 0 0 0 0 0 0 0-1 1 0 0-1 1-1 1 0 0 0 0 1-1 0 0 1 1 0 1 0 0 0 0 0 0 1 0 0-1 0 1 1 0 0 1 0 0 1 1 0 0 0-1 1 0 1 0-1 0 0 0 1 0 0 0 0-1 0 0 0 0 0 0 0 0 1 0 1-1-1 0 0 0 1 0 0 1 1-1 0-1 0-1 0 0 0 0 0 0 0-1 0-1 0 0 1 1 0 1 0 0 0 0 1 0 0-1-1 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 1 1 1 0 0 0 0 1 1 0 1 0 0 0-1 0 0 0 0 0 0-1 0 0 0 0 1-1 0-1-1 1-1 0 0 0 0 1 0 1 0 1 0 1 0-1 0 0 0 0-1 0 0 0 0-1 1 0 0 0 1 0 0-1 0 0 0-1-1-0-1 0 0 0 0-1 0 0 0 0 1 0 0};

The second sequence of length 403 { - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -1-1-0-1-1-1-1-1-0-1-1-1-0- -1- - -1 0 0-1-1-1-0-;

a second sequence of length 429 { -1-1 0 1- - -1- -0- -1- - -1-1-1-0-1- -1 0-1-0- -) -1.0- - -1.0-1-1- - -1.0-1- - - - - - - - - - - - - - - -. 1-1-1 0-1-1-0-1-1-1-0-1-1- };

A second sequence of length 456 {0 0-1 0-1 0-1 0-1 0-1 0 0 0 0 0 1 0 0 0 0 0 0 0 0-1 1 1 1 0 0 0 0 0 1 0-1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1-1 0-1 0 0 1-1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0-1-1-1 0 1 0 0 0-1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0-1 1-1 0 0 0 0-1 0 0 1 0 0 0 0 0-1 0 0 0 0 0 0 0 0 0 0 1 1 0-1 0 0 1-1 0-1 0 0 0 0 0-1 0 0 0 0 0 0 0 0-1-1 1-1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1-1-1 0 1 0 0 1-1 0 0 0 0 0 0 0-1 0 0 0 0 0 0 0 0 1 0-1-1 0-1 0 0 1 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0-1 0-1 0 0 0 0 1-1 0-1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-1-1-1 0 1 0 0-1-1 0-1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0-1-1 0 1 0 0 0 0 0-1 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0-1 0-1-1 0-1 0 0 0 0 0 1 0 0 0 0 0 0 0 0-1 0-1 1 0 1 0 0 1 1 0 0 0 0 0 0 0-1 0 0 0 0 0 0 0 0 1 1 1-1 0 1 0 0 0 1 0-1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1-1 0 0 1 0 0-1 0-1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-1 0 1 0 1 0 0 1-1 0-1 0 0 0 0 0 1 0 0 0 0 0 0 0 0};

A second sequence of length 651 {1 0 1 1 0 0 1 0-1 0 1 0 0 0 0 0 0-1 0 1 0 1 0-1 0 0 0 0 0 0 0-1 0-1 0 0 1-1 0-1 1 0 0 0 1 1 0 1 0-1 0-1 0-1 0 0 0 0 1 0 0-1 0 1 1 0 0-1 1 0 1 0 0 0 0-1 0 0 1 1 0 0-1 0-1 0-1 0-1-0-1 0-1-1 0-1 0-1 0-1 0' 0-1-0-1 0-1 0-1 0-1-1 0-1 0-1 0-1-0-1 0-1 0-1 0-1 0-1-1-0-1 0-1 0-1 0-1 0-1 0-water-and-a-the like 1 0-1-1-0-1-1-1-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1-1-1-1 0-1 0-1 0-1-1-0-1 0-1 0-1 0-1-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1 0-1-1-0-1-1 0-1-0-1 0-1 0-0-1 0};

Second sequence of length 741 { -1-1 0-1-1-0-1-1-1 0-1 0-1 1 0- - -1- - -1- - -1-1 1 0- - -1- - -1-1 1 1 1.0.1.1 1- - -1-1- - -1-1 1 1 1-1-1 1 0 0 0 0-1-0-1 0 1 1 1 0-1 0 0 1-1 0-1-1-1-1-1 0 1 0 0-1-1-1-0-1-1-1 1 0 0 1 0 0-1 1-1 0 1 1 0 1-1 0 1 0 0 1-1-0-1 1 1 0 0 0 0 0 0 1-1-1-0-1 1 0 1 0 1 0 0-1-1-0-1 1 1 1 1 0 1 0 0 0 1 1 0 0 1-1-1-0-1 1 0 1-1-0-1 0-1 0 0 0-1-0-1-1 1-1-1 0 1 0 0 1-1 1 0 1 1 1 1-1 0-1 0 0 1-1-0-1 0-1 1-1 0-1 0 0 1 1-1 0-1 0-1 0-1-1-1 0-1-0-1-1 0-1-1-0-1 0-1 0-1 0-1 0-1 0-1 0-1-1-1-1-0-1 0-1 0-1 0-1-1 };

A second sequence { 1.sub.1-1- } of length 806 1-1- -1-0-1-0;

A second sequence {1 0-1.0- - -1-1.0 } - - - - - - - -. 1-1-1-1 0-0 0-1-1-0-1- -1.0.1' 1.0- - -1-the preparation method is characterized by comprising the following steps of;

The second sequence {1 1 1-1 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-1 1-1 0-1 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0-1-1-1 0-1-0-1-1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1-1-1 0 1 0 0-1 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0-1-0-1 0 1 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0-1 1 0 1 0 1 0 0 0-1 0-1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0-1-1 0 1 0 0 1 0 0-1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 0-1-1-0-1 0 0 0 0 0-1 0 0 0 0 0 0 0 0 1 0 1-1 0 1 0 0 0-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1-0-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1) -1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0-1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-water-and-oil) 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1-1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 };

A second sequence of length 1023 { -1-1-0-1-1-1-0- -1-1 0-1-0-1-1 1.0- - -1- - -1- - -1- - -1.0.about.0.1- -1 0-1 1- -1.0-1-1.1-1- - -1.0- - -1- - -0.0.about.1- - -0.0.about.1.0.about.1.0.about.0.1.1.0.about.1.0.1.0. About.1.0. About.1. About.0. About.1.) 1 10 0 1 1 1-1 0 0 0 0 10 0 1 1-1 0 1 0-1 0 0 0 0 0 0 0 10 10 0 0 0-1-1 1 10 0 0 1 10 0-1-1 0 1 0-1 0 0 0 0 0 0 0-1 0 1 10 0-1-0-1-1 0 0 0 0 10 1-1 0 0 1 0-1 0 0 0 0 10 0-1 0-1-1 0 0 10 1 10 0 0 0-1-1-0-1-1 0 0 0-1 0 0 0 0 0 0 0 0 0-1 0 0 0 1 1-1 0 10 0 0 1 1 0-1 0-1 0 10 0 0 0 0 0 10 0 10 0 0 0 0-1-1-1 1-1 0 0 0 0-1 0 1 1 10 1 0-1 0 0 0 0 10 0 10 1-1-0-1-1 0 0 0-1-0-1-1 0-1 0-1 0 0 0 0-1 0 0 10 10 0 0 0 0 10 10 0 0 10 0 10 10 10 10 0 0 0-1 0 0 10 1-1 0 0 1-1 0 0 10 0 0 1 10 0 1-1 0-1 0-1 0 0 0 0-1 0 0 0 0 1-1 0 0 1 0-1-1 0 0 0 0-1-1-0-1 0 0 10 10 0 0 0 0 0 0 10 0 10 0 1-1-1 0-1 0 0 0-1 0-1-1-1 0 0 0-1 0 0 0 0 10 0}; or,

The second sequence of length 1023 { -1 0-1-1-1- - -1-1-0-1-1-1-1-1-1-0-1-1-1-1 0-1-1-1.1-1.0- - -1.1-1-1-1-1.1.0-1 0- - -1- -1 0- -1- - - - - - - - - -, 1 0- - -1- -1.0-1-1-1-0-1-1-) 11 1 1-1 0-1-1 0 11 1-1 10 11 10 0 1 0-1 1-1-1 0-1 10 0-1 0-1-1-1 0 1 0-1-1 0-1 1-1 1-1 0 10 0 10 1 1-1-1 0-1 0-1 0 0 0-1 0 10 1-1 1 0-1 10 1-1 1-1-1 0 0 10 10 1-1 0-1 1-1 0 11 0 0 1 0-1 1 1-1 1 0-1-1 0-1 11 0 0 0 0 11 10 0-1 1-1 0 10 1-1 0 0-1 0-1 11 11 0 11 0-1 0 0-1 0 0 1 1-1 0 0-1-1 0 11 1 0-1 0 0 0-1 0-1-1 1-1-1 0-1 10 0 1 0-1-1 0-1 0-1-1 0 0 11 1-1-1 0 11 0 0-1 0-1 1-1 11 0 0 0 0 0 1 1-1 1 0-1-1-1 0 0-1 1-1-1 0 10 11 0 0-1 0 1-1 11 0 0-1 0 0-1 1-1 0 1 0-1 0 1-1 0 1-1 0 11 10 1-1 0 0 1 0-1-1 0 0 1 0-1 10 1 0-1 11 0 1-1 11 0 0 11 11 10 11 0 0-1 0 0 0 10 1 0-1-1 0 1-1-1 0-1 0 1 1-1 0 0-1 11 1-1 1 0-1-1 0 0 0 0-1 0 11 10 0-1 0 10 1 1-1 0-1 0 1-1 0-1 1-1 1 1-1 0 1-1 0 0-1 0-1-1 1-1 0 0 1-1 0-1-1 1-1 10 1-1 1-1 0 11 1-1-1 10 0 0 0 0-1 0-1 1 0-1-1 0 0 1 0-1 1-1 0-1 0 1-1 11 0-1-1-1 1-1 0 0 10 0 0-1 0 0 1-1-1 0 0 11 0 10 1 1-1 0 11 1- 10 1 1-1 0 0 10 1-1 0 0 0 0 11 0 1-1 0-1-1 0-1-1 1 1-1 0 1-1-1 10 10 0 10 10 11 0 0 10 0-1-1 11 0 0 1 0-1-1 1-1-1 0-1 11 10 0 10 1-1 10 0 10 0 0 0 1-1 1-1 0 0 11 0-1 11 11 0 11 0 0 0 0 1-1 11 0 0-1 10 0 1 0-1 10 1-1 0 11 0-1-1-1-1-1 0 0 0 10 0 11 10 1-1 0 0-1 0 0-1 0 0-1-1 1-1 0-1 10 11 1-1 0 0}.

Therefore, the sequence set provided in this embodiment enables a longer sequence to be adopted in the first channel measurement frame, and correspondingly, more pulse sequences can be included in the measurement symbol, so that the maximum total energy that can be sent is further transmitted under the condition that the power spectrum density is limited, the maximum transmission power amplification factor is further increased, that is, the power enhancement transmission can be supported, the coverage distance is further increased, and the effectiveness of the wireless communication system is further improved.

In an alternative embodiment, the sequence set may further include a third sequence consisting of sequence a ^* (n) and sequence B ^* (n) multiplying the elements by each other according to the element index; the sequence A ^* (N) is a sequence a (N) of length N1 repeated N2 times, a sequence of length N1 x N2 being obtained; the sequence B ^* (N) is a sequence B (N) of length N1 repeated N1 times, a sequence of length N2 x N1 being obtained; the greatest common divisor between the N1 and the N2 is 1, the N1 and the N2 are integers greater than 1, and the sequence A (N) and the sequence B (N) are the first sequences. Optionally, the set of sequences includes a plurality of third sequences, each third sequence being constructed from two first sequences of mutually equal length using this embodiment.

In another alternative embodiment, the set of sequences further comprises a fourth sequence consisting of sequence C ^* (n) and sequence D ^* (n) multiplying the elements by each other according to the element index; sequence C ^* (N) is a sequence C (N) of length N3 repeated N4 times, a sequence of length N3 x N4 being obtained; the sequence D ^* (N) is a sequence D (N) of length N4 repeated N3 times, a sequence of length N4 x N3 being obtained; the greatest common divisor between N3 and N4 is 1, both N3 and N4 are integers greater than 1, and both sequence C (N) and sequence D (N) are the second sequences described above. Optionally, the set of sequences includes a plurality of fourth sequences, eachThe fourth sequence is constructed from the second sequences of two length integrins using this embodiment.

In an alternative embodiment, the sequence set further comprises a fifth sequence, the fifth sequence being a sequence obtained by performing one or more of the following on the first sequence: cyclic shift, reverse order, inversion, or d times sampling, wherein the greatest common divisor between d and N1 is 1, and d is an integer greater than 0. The sequence obtained by sampling the first sequence d times is a sequence formed by repeating the first sequence d times, and each d elements are extracted to form a sequence formed by one element. Optionally, the set of sequences includes a plurality of fifth sequences, each fifth sequence being constructed from one of the first sequences using the embodiment.

In another alternative embodiment, the measurement sequence further comprises a sixth sequence, the sixth sequence being a sequence obtained by subjecting the second sequence to one or more of the following: cyclic shift, reverse order, inversion, or d times sampling, wherein the greatest common divisor between d and N1 is 1, and d is an integer greater than 0. The sequence obtained by sampling the second sequence d times is a sequence formed by repeating the second sequence d times, and each d elements are extracted to form a sequence formed by one element. Optionally, the set of sequences includes a plurality of sixth sequences, each fifth sequence being constructed from one of the second sequences using this embodiment.

The method for constructing the sequence described above, such as the embodiment in which the first sequence of two length-wise elements is multiplied by each other, and the embodiment in which the second sequence of two length-wise elements is multiplied by each other, are not limited to the method for constructing the first sequence or the second sequence, and may be used for constructing a new sequence for the third sequence of two length-wise elements, for example, and the application is not limited to this.

The construction method of the above sequence, such as performing one or more of the above operations on the first sequence or the second sequence to obtain a new sequence, may not be limited to the construction method for the first sequence or the second sequence, may also be used for the third sequence or the fourth sequence as mentioned in the present application to construct a new sequence, and so on, which are not listed in the present application.

In a second aspect, the present application also contemplates another channel measurement frame, for ease of illustration, referred to as a second channel measurement frame, wherein the measurement symbols are delta functions delta of length L _L (n) spreading the measurement sequence;

and spreading the information bit stream by using the measurement symbols to obtain a second channel measurement frame. Wherein the measurement sequence is one or more sequences in a set of sequences, the set of sequences comprising one or more first sequences of:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

That is, the second channel-measurement frame of the second aspect is a channel-measurement frame carrying an information bit stream. It can be seen that the second channel measurement frame not only has the measurement symbols included in the first channel measurement frame according to the first aspect, but also can spread the information bit stream by the measurement symbols to obtain the channel measurement frame carrying the information bit stream. Therefore, the second channel measurement frame not only can support power enhancement transmission and increase coverage, but also can carry information bit stream, thereby further improving the effectiveness of the wireless communication system.

Optionally, the measurement sequence in the second channel measurement frame in the present application is one or more sequences in a sequence set, where the sequence set is optional, and may further include one or more second sequences as described in the first aspect; optionally, the sequence set may further include one or more third sequences as described in the first aspect above; optionally, the sequence set may further include one or more fourth sequences as described in the first aspect above; optionally, the sequence set may further include one or more fifth sequences as described in the first aspect above; optionally, the sequence set may further include one or more sixth sequences as described in the first aspect above. Reference is made in particular to the description of alternative embodiments of the first aspect, which are not further elaborated here.

In a third aspect, the present application also provides a data frame that may include one or more measurement symbols therein that utilize a delta function delta of length L _L (n) spreading the measurement sequence;

the measurement sequence is one or more sequences in a set of sequences, the set of sequences comprising one or more first sequences of:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

Therefore, the data frame can increase the sending time length of the measurement symbol through spreading, thereby being beneficial to enabling the sending time length of the measurement symbol to be longer than 1 microsecond, being capable of avoiding obvious spectral lines of a frequency domain spectrum caused by repetition of the measurement symbol when the frequency domain spectrum is an integral multiple of the repetition frequency, being capable of completely sending out the maximum total energy which can be sent under the condition of limited power spectral density, increasing the maximum sending power amplification factor, being capable of supporting power enhancement transmission, increasing the coverage distance and further improving the effectiveness of a wireless communication system.

Optionally, the measurement sequence in the data frame is one or more sequences in a sequence set, where the sequence set is optional, and may further include one or more second sequences as described in the first aspect; optionally, the sequence set may further include one or more third sequences as described in the first aspect above; optionally, the sequence set may further include one or more fourth sequences as described in the first aspect above; optionally, the sequence set may further include one or more fifth sequences as described in the first aspect above; optionally, the sequence set may further include one or more sixth sequences as described in the first aspect above. Reference is made in particular to the description of alternative embodiments of the first aspect, which are not further elaborated here.

In a fourth aspect, the present application further provides a communication method, where a first device is set forth as an execution body, where the first device may play different roles at different times, and may be a transmitting end at one time, perform an operation of the transmitting end, and may be a receiving end at another time, and perform an operation of the receiving end; alternatively, the first device may be an initiating station at one time, perform operations for the initiating station, and may be a responding station at another time, perform operations for the responding station. The communication method is described by taking the first device as a transmitting end as an example.

The communication method may employ the first channel measurement frame of the first aspect, the method comprising: the first device transmitting a first channel measurement frame, the first channel measurement frame comprising one or more measurement symbols; wherein the measurement sign is a delta function delta with length L _L (n) spreading the measurement sequence;

wherein:

a first sequence {1,0, -1, 0,1} of length 6;

a first sequence {1,0,1,0,0,1, -1, 0, -1, 1} of length 13;

A first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

Therefore, the length of the measurement sequence after the spread spectrum is increased, which is beneficial to enabling the transmission time of one measurement symbol to be longer than 1 microsecond, and can avoid obvious spectral lines of the frequency domain spectrum caused by the repetition of the measurement symbol when the frequency domain spectrum is an integer multiple of the repetition frequency, so that the maximum total energy which can be transmitted can be completely transmitted under the condition of limited power spectral density, the maximum transmission power amplification factor is increased, namely, the power enhancement transmission can be supported, the coverage distance is increased, and the effectiveness of a wireless communication system is further improved.

In an alternative embodiment, the communication method further comprises: the first channel measurement frame is determined.

In an alternative embodiment, the communication method may send a first channel measurement frame composed of one or more measurement symbols, and compared with using a data frame to perform channel measurement, since the data frame further includes a data-related preamble or the like, the sending time of the channel measurement frame is shorter, so that the overhead of channel measurement may be reduced.

Optionally, the measurement sequence is one or more sequences in a sequence set, where the sequence set is optional, and may further include one or more second sequences as described in the first aspect; optionally, the sequence set may further include one or more third sequences as described in the first aspect above; optionally, the sequence set may further include one or more fourth sequences as described in the first aspect above; optionally, the sequence set may further include one or more fifth sequences as described in the first aspect above; optionally, the sequence set may further include one or more sixth sequences as described in the first aspect above. Reference is made in particular to the description of alternative embodiments of the first aspect, which are not further elaborated here.

In a fifth aspect, the present application further provides a communication method, where the method uses a second device as an execution body, where the second device may play different roles at different times, and may be a transmitting end at one time, perform an operation of the transmitting end, and may be a receiving end at another time, and perform an operation of the receiving end; alternatively, the second device may be an initiating station at one time, perform operations for the initiating station, and may be a responding station at another time, perform operations for the responding station. The communication method is described by taking the second device as the receiving end as an example.

The communication method may employ the first channel measurement frame of the first aspect, the method comprising: the second device receives a first channel measurement frame, the first channel measurement frame comprising one or more measurement symbols; wherein the measurement sign is a delta function delta with length L _L (n) spreading the measurement sequence;

wherein:

a first sequence {1,0, -1, 0,1} of length 6;

a first sequence {1,0,1,0,0,1, -1, 0, -1, 1} of length 13;

A first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

In an alternative embodiment, the communication method further comprises: and determining a channel measurement result according to the first channel measurement frame.

In a sixth aspect, the present application further provides a communication method, where a first device is set forth as an execution body, where the first device may play different roles at different times, and may be a transmitting end at one time, perform an operation of the transmitting end, and may be a receiving end at another time, and perform an operation of the receiving end; alternatively, the first device may be an initiating station at one time, perform operations for the initiating station, and may be a responding station at another time, perform operations for the responding station. The communication method is described by taking the first device as a transmitting end as an example.

The communication method may employ a second channel measurement frame designed in the second aspect, the method comprising: the first device transmits a second channel measurement frame obtained by spreading the information bit stream with measurement symbols using a delta function delta of length L _L (n) spreading the measurement sequence;

wherein:

a first sequence {1,0, -1, 0,1} of length 6;

a first sequence {1,0,1,0,0,1, -1, 0, -1, 1} of length 13;

A first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

The communication method based on the second channel measurement frame not only has the measurement symbols described in the first aspect, but also can spread the information bit stream by the measurement symbols to obtain the channel measurement frame carrying the information bit stream. Therefore, the communication method not only can support power enhancement transmission and increase coverage, but also can carry information bit streams, and further improves the effectiveness of the system. In addition, since the second channel measurement frame is obtained by spreading the information bit stream by the measurement symbol, it can be seen that the second channel measurement frame does not need to include the load such as header information that needs to be carried by other data frames, so that the overhead of channel measurement can be reduced.

In an alternative embodiment, the communication method further comprises: a second channel measurement frame is determined. Optionally, the method may further include: the measurement symbols are determined.

In a seventh aspect, the present application further provides a communication method based on the second channel measurement frame in the second aspect, where the method is described by using a second device as an execution body, where the second device may play different roles at different moments, and may be a transmitting end at one moment, perform an operation of the transmitting end, and may be a receiving end at another moment, and perform an operation of the receiving end; alternatively, the second device may be an initiating station at one time, perform operations for the initiating station, and may be a responding station at another time, perform operations for the responding station. The communication method is described by taking the second device as the receiving end as an example.

The communication method may employ the second channel measurement frame according to the second aspect, the method comprising:

receiving a second channel measurement frame, wherein the second channel measurement frame is obtained by spreading an information bit stream by using measurement symbols; the sign of the measurement is by means of a delta function delta of length L _L (n) spreading the measurement sequence;

wherein:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

It can be seen that the communication method based on the second channel measurement frame not only has the measurement symbols described in the first aspect, but also can spread the information bit stream by the measurement symbols to obtain the channel measurement frame carrying the information bit stream. Therefore, the communication method not only can support power enhancement transmission and increase coverage, but also can carry information bit stream, thereby further improving the effectiveness of a wireless communication system. In addition, since the second channel measurement frame is obtained by spreading the information bit stream by the measurement symbol, it can be seen that the second channel measurement frame does not need to include the load such as header information that needs to be carried by other data frames, so that the overhead of channel measurement can be reduced.

In an alternative embodiment, the communication method further comprises: and determining a channel measurement result and an information bit stream carried by the channel measurement result according to the second channel measurement frame.

Optionally, the first channel measurement frame, the second channel measurement frame and the data frame related to the above aspect may also be sent by adopting a multi-millisecond segmented transmission mode. Therefore, under the condition of limited power spectrum density, the amplification factor of the maximum transmitting power can be further increased, so that the power enhancement transmission is supported, the coverage area is further increased, and the effectiveness of the system is improved.

In an eighth aspect, the present application provides a communication apparatus, which may be the first device or a chip in the first device.

In an alternative embodiment, the communication device may perform the communication method according to the fourth aspect, and the communication device includes: a communication unit for transmitting a first channel measurement frame, the first channel measurement frame comprising one or more measurement symbols; wherein the measurement sign is a delta function delta with length L _L (n) spread spectrum acquisition of the measurement sequenceIs a kind of device for the treatment of a cancer;

wherein:

a first sequence {1,0, -1, 0,1} of length 6;

a first sequence {1,0,1,0,0,1, -1, 0, -1, 1} of length 13;

A first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

In an alternative embodiment, the first channel measurement frame may be composed of the one or more measurement symbols. In this way, the channel measurement frame does not need to include other information such as a data header, which reduces the overhead of channel measurement compared to performing channel measurement based on the data frame.

In an alternative embodiment, the communication device may further comprise a processing unit for determining the first channel measurement frame.

In another alternative embodiment, the communication device may perform the communication method of the sixth aspect, where the communication device includes: a communication unit for transmitting a second channel measurement frame, a second channelThe measurement frame is obtained by spreading the information bit stream with the measurement symbol, which is a delta function delta of length L _L (n) spreading the measurement sequence;

wherein:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

Optionally, the communication device further comprises a processing unit for determining the second channel measurement frame.

Optionally, in the present application, the measurement sequence is one or more sequences in a sequence set, where the sequence set is optional, and may further include one or more second sequences as described in the first aspect above; optionally, the sequence set may further include one or more third sequences as described in the first aspect above; optionally, the sequence set may further include one or more fourth sequences as described in the first aspect above; optionally, the sequence set may further include one or more fifth sequences as described in the first aspect above; optionally, the sequence set may further include one or more sixth sequences as described in the first aspect above.

Specific alternative embodiments and advantages thereof may be found in the fourth or sixth aspect and will not be described here.

In a ninth aspect, the present application provides a communication apparatus, which may be the second device or a chip in the second device.

In an alternative embodiment, the communication device may perform the communication method according to the fifth aspect, and the communication device includes: a communication unit for receiving a first channel measurement frame, the first channel measurement frame comprising one or more measurement symbols; wherein the measurement sign is a delta function delta with length L _L (n) spreading the measurement sequence;

wherein:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

A first sequence {1, -1,0, -1, -1,0, -1, -1, -1, -1,0,1, -1,0, -1, -1,1,0,0,1,0,1,1,1,1, -1, -1,0,1, -1, -1, -1, 1}

In an alternative embodiment, the communication device may further comprise a processing unit for determining a channel measurement result from the first channel measurement frame.

In another alternative embodiment, the communication device may perform the communication method of the seventh aspect, where the communication device includes: a communication unit for receiving a second channel measurement frame obtained by spreading the information bit stream with the measurement symbols by using a delta function delta of length L _L (n) spreading the measurement sequence;

wherein:

A first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

Optionally, the communication device further includes a processing unit, configured to determine a channel measurement result and a carried information bit stream according to the second channel measurement frame.

Optionally, the measurement sequence in the present application is one or more sequences in a sequence set, and the sequence set may further include one or more second sequences described in the first aspect; optionally, the sequence set may further include one or more third sequences as described in the first aspect above; optionally, the sequence set may further include one or more fourth sequences as described in the first aspect above; optionally, the sequence set may further include one or more fifth sequences as described in the first aspect above; optionally, the sequence set may further include one or more sixth sequences as described in the first aspect above.

Specific alternative embodiments and advantages thereof may be found in the fifth or seventh aspect and will not be described here.

In a tenth aspect, the present application provides a communication apparatus, which may be a first device, and which may perform the communication method described in the fourth aspect, the communication apparatus including: a processor configured to transmit a first channel measurement frame, the first channel measurement frame comprising one or more measurement symbols; wherein the measurement sign is a delta function delta with length L _L (n) spreading the measurement sequence;

wherein:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

a first sequence of length 31 {1,0,1,1,0,0,1,1, -1, -1,0,0,0,1,1,0,1, -1,0, -1, 0};

In an alternative embodiment, the communication device may further comprise a processor for determining the first channel measurement frame.

In another alternative embodiment, the communication device may perform the communication method of the sixth aspect, where the communication device includes: a transceiver for transmitting a second channel measurement frame obtained by spreading the information bit stream with measurement symbols using a delta function delta of length L _L (n) spreading the measurement sequence;

wherein:

A first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

Optionally, the communication device further comprises a processor for determining the second channel measurement frame.

Optionally, the communication device further comprises a memory for storing a computer program comprising program instructions.

In an eleventh aspect, the present application provides a communication apparatus, which may be a second device, capable of performing the communication method described in the fifth aspect, the communication apparatus including: a transceiver for receiving a first channel measurement frame, the first channel measurement frame comprising one or more measurement symbols; wherein the measurement sign is a delta function delta with length L _L (n) spreading the measurement sequence;

wherein:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

In an alternative embodiment, the communication device may further comprise a processor for determining a channel measurement result from the first channel measurement frame.

In another alternative embodiment, the communication device may perform the communication method of the seventh aspect, where the communication device includes: a transceiver for receiving a second channel measurement frame obtained by spreading the information bit stream with the measurement symbols by using a delta function delta of length L _L (n) spreading the measurement sequence;

Wherein:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

Optionally, the communication device further includes a processor configured to determine a channel measurement result and a carried information bit stream according to the second channel measurement frame.

In a twelfth aspect, an embodiment of the present application provides a communication device implemented in a product form of a chip, including a processor and an interface circuit; the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor; the processor is configured to execute the code instructions to perform the communication method according to the fourth aspect, or the sixth aspect, or any possible implementation manner of any one of the above aspects. Optionally, the communication device further comprises a memory, and the memory is connected with the processor through a circuit. In the alternative, the processor and memory may be physically separate units, or the memory may be integrated with the processor.

In a thirteenth aspect, an embodiment of the present application provides a communication device implemented in a product form of a chip, including a processor and an interface circuit; the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor; the processor is configured to execute the code instructions to perform the communication method according to the fifth aspect, or the seventh aspect, or any possible implementation manner of any one of the foregoing aspects. Optionally, the communication device further comprises a memory, and the memory is connected with the processor through a circuit. In the alternative, the processor and memory may be physically separate units, or the memory may be integrated with the processor.

In a fourteenth aspect, an embodiment of the present application provides a computer readable storage medium, in which a computer program is stored, the computer program comprising program instructions which, when run on a computer, cause the computer to perform the communication method according to any one of the above-mentioned fourth to seventh aspects or any one of the possible implementation manners of any one of the above-mentioned fourth to seventh aspects.

In a fifteenth aspect, embodiments of the present application provide a computer program product which, when run on a computer, causes the computer to perform the communication method of any one of the fourth to seventh aspects or any one of the possible implementation manners of any one of the fourth to seventh aspects.

In a sixteenth aspect, an embodiment of the present application provides a communication system including the first device according to the fourth aspect and the second device according to the fifth aspect; or comprises the first device of the sixth aspect and the second device of the seventh aspect; or includes the communication device of the eighth aspect and the communication device of the ninth aspect; or includes the communication device described in the tenth aspect and the communication device described in the eleventh aspect.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system;

fig. 2 (a) is a schematic diagram of another wireless communication system;

fig. 2 (b) is a schematic structural diagram of yet another wireless communication system;

fig. 3 is a schematic structural diagram of a first channel measurement frame according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a periodic autocorrelation function of a sequence;

FIG. 5 is a schematic diagram of a sequence construction method according to an embodiment of the present application;

FIG. 6 is a schematic diagram of another sequence construction method according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a second channel measurement frame according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a frame structure of a data frame in a UWB system;

Fig. 9 is a schematic diagram of a structure of a sync header in a data frame;

fig. 10 is a flow chart of a communication method 100 according to an embodiment of the present application;

fig. 11 is a schematic diagram of a segmented transmission of a channel measurement frame according to an embodiment of the present application;

fig. 12 is a flow chart of a communication method 200 according to an embodiment of the present application;

FIG. 13 is a schematic diagram of a communication method 300 provided by an embodiment of the present application;

FIG. 14 is a schematic diagram of a communication method 400 provided by an embodiment of the present application;

fig. 15 is a schematic structural diagram of a communication device 1500 according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of another communication device 1600 according to an embodiment of the present application.

Detailed Description

The present application is applicable to wireless communication technology, and referring to fig. 1, fig. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application. As shown in fig. 1, the wireless communication system may include a plurality of devices (e.g., a first device and a second device). In the wireless communication system, the power spectral density of a channel that each device can transmit is limited.

For example, a wireless communication system based on Ultra Wideband (UWB) technology is exemplified, and UWB technology uses non-sinusoidal narrow pulses of nanosecond order to transmit data. Therefore, the signal in the UWB technology occupies a wider frequency spectrum range, and has the advantages of strong multipath resolution capability, low power consumption, strong confidentiality and the like. In short-range communication applications, to avoid interference of UWB signals with other devices of a narrowband communication system, the power spectral density of UWB signals is limited, mainly by the following two rules:

Rule one: the maximum power spectral density (Power Spectral Density, PSD) of the transmitted UWB signal cannot be greater than-41.3 per megahertz (dBm) over a millisecond;

rule II: the maximum power of the transmitted UWB signal in any 50M bandwidth cannot exceed 1 milliwatt, and assuming B is the equivalent arbitrary observation bandwidth, then the maximum transmit power cannot exceed 20 log ₁₀ (B/50MHz)。

Wherein, the rule one limits the total energy of UWB signal transmitted in 1 millisecond (ms), the rule two limits the power increase multiple of UWB signal, taking 500M bandwidth as an example, i.e. B=500M, the maximum transmitting power of UWB signal can not exceed 20 log ₁₀ (500/50MHz)＝20dBm。

The transmit power of Ultra Wideband (UWB) transmitters can typically be less than 1 milliwatt (mW), and in theory, the interference generated by Ultra Wideband (UWB) signals is equivalent to a wideband white noise. This facilitates good coexistence between ultra-wideband and existing narrowband communications. Since the larger the instantaneous power of the transmitted UWB signal, the larger the coverage of the UWB signal and the signal-to-noise ratio of the UWB signal received by the receiving end, the total energy within 1ms needs to be concentrated for transmission in a shorter time. Assuming that the maximum transmit power of 20dBm, limited by rule two, transmits a UWB signal and the duration of each pulse is approximately 2ns, then the maximum total energy that can be transmitted within 1 millisecond, limited by rule one, needs to last more than 370ns to be transmitted entirely. That is, a minimum of 186 pulses (approximately 370ns/2 ns) are required to transmit the maximum total energy in 1 millisecond all, which can correspond to a 2703-fold amplification of the maximum transmit power.

Fig. 1 includes at least a UWB module in each device. The UWB modules of the first device and the second device can perform channel measurement, data transmission, sensing, ranging and the like. Optionally, each device may further include at least a narrowband communication module, where data transmission between the narrowband communication modules of the first device and the second device may be performed through a wireless link.

In the present application, UWB modules may be understood as devices, chips, systems, etc. implementing UWB wireless communication technology; accordingly, a narrowband communication module may be understood as a device, chip, or system, etc., implementing narrowband communication technologies, such as wireless fidelity (Wi-Fi), bluetooth, or Zigbee (Zigbee protocol), etc. Alternatively, in one device (device), the UWB module and the narrowband communication module may be different devices or chips, and the UWB module and the narrowband communication module may be integrated on one device or chip.

In addition, in a wireless personal area network (wireless personal area network, WPAN) in the wireless communication technology, devices can be classified into full-function devices (FFDs) and reduced-function devices (RFDs) according to communication capabilities possessed by the devices. Communication can be made between FFD devices as well as between FFD devices and RFD devices. The RFD devices cannot communicate directly with each other, can only communicate with the FFD device, or can forward data out through one FFD device. This FFD apparatus associated with an RFD is referred to as a coordinator (coordinator) of the RFD. The RFD device is mainly used for simple control application, such as switching of a lamp, a passive infrared sensor and the like, has less transmitted data volume, occupies little transmission resources and communication resources, and has lower cost. Among other things, the coordinator may also be referred to as a personal area network (personal area network, PAN) coordinator or a central control node, etc. The PAN coordinator is a master control node of the whole network, and only one PAN coordinator can exist in each ad hoc network, and the PAN coordinator has membership management, link information management and packet forwarding functions.

Referring to fig. 2 (a), fig. 2 (a) is a schematic structural diagram of another wireless communication system according to an embodiment of the present application. As shown in fig. 2 (a), the wireless communication system adopts a star topology. The star topology includes a central control device and one or more distribution devices. Communication transmissions may be made between the central control device and the one or more distribution devices. The network as shown in fig. 2 (a) may be a WPAN and the central control device may be the WPAN coordinator, i.e., act as a coordinator in the WPAN. The technical scheme of the application realizes the perception of the target in the surrounding environment and obtains the corresponding perception measurement result between the central control equipment and the distribution equipment. For the functions of the devices, the wireless communication system includes two types of devices, a full function device (Full Function Device) and a reduced function device (Reduce Function Device), respectively.

Referring to fig. 2 (b), fig. 2 (b) is a schematic structural diagram of another wireless communication system according to an embodiment of the present application. As shown in fig. 2 (b), the wireless communication system adopts a point-to-point topology. The network as shown in fig. 2 (b) may be a WPAN and the device as shown in fig. 2 (b) may act as a WPAN coordinator, i.e. as a coordinator in the WPAN. Different devices in fig. 2 (b) realize sensing targets in the surrounding environment through the technical scheme of the application and obtain corresponding sensing measurement results. For the functions of the devices, the wireless communication system includes two types of devices, a full function device and a reduced function device, respectively.

The wireless communication system to which the present application is applicable includes a first device and a second device. The first device includes a communication server, a router, a switch, a bridge, a computer device, a terminal device, a PAN coordinator, and the like. The second device includes a communication server, a router, a switch, a bridge, a computer device, a terminal device, and the like. Alternatively, the device according to the present application may be a wireless communication chip, a wireless sensor or a wireless communication terminal. For example, UWB (including but not limited to Wi-Fi, bluetooth, zigbee) enabled user terminals, user equipment, access devices, subscriber stations, subscriber units, mobile stations, user agents, user equipment, wherein a user terminal may include various handheld devices, vehicle mounted devices, wearable devices, internet of things (internet of things, ioT) devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of User Equipment (UE), mobile Stations (MS), terminals (terminals), terminal devices (terminal equipment), portable communication devices, handsets, portable computing devices, entertainment devices, gaming devices or systems, global positioning system devices or any other suitable devices configured for network communication via a wireless medium, and the like. In addition, the device may support 802.15.4ab system or 802.15.4ab next generation system. The device can also support multiple systems such as 802.15.4a, 802.15.4-2011, 802.15.4-2015, 802.15.4-2020, 802.15.4z and the like. The device may also support a variety of wireless local area network (wireless local area networks, WLAN) standards of 802.11 families, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11be next generation, etc.

Techniques such as UWB technology, or wireless communication systems based on UWB technology, which have some limitation on the power spectral density of signals in order to reduce interference that increases in bandwidth of the signals may cause to devices of other narrowband systems. It is desirable to design a channel measurement frame or data frame to improve the effectiveness of a wireless communication system in situations where the power spectral density is limited.

In a first embodiment of the application, a channel measurement frame is described, which may include one or more measurement symbols that utilize a delta function delta of length L _L (n) spreading the measurement sequence;

since the measurement symbols are repeatedly transmitted in order to transmit the maximum total energy that can be transmitted as far as possible in the case of a limited power spectral density, for example, in a UWB system, the measurement symbol repetition transmission can transmit more pulse sequences within 1 ms to increase the power increase factor. However, the repetition of the measurement symbols results in a frequency domain spectrum with distinct spectral lines at integer multiples of the repetition frequency, affecting the maximum transmit power. While embodiment 1 is provided withIn the channel measurement frame of the meter, delta function delta with length L is utilized _L (n) spread spectrum is carried out on the measurement sequence, the sending time length of the measurement symbol can be increased, so that the sending time length of the measurement symbol is longer than 1 microsecond, obvious spectral lines of a frequency domain spectrum caused by repetition of the measurement symbol can be avoided when the frequency domain spectrum is an integral multiple of the repetition frequency, the maximum total energy which can be sent can be completely emitted under the condition of limited power spectral density, the maximum transmitting power amplification factor is increased, namely, the power enhancement transmission can be supported, the coverage distance is increased, and the effectiveness of a wireless communication system is further improved.

In a second embodiment of the application, another channel measurement frame is described, which can be obtained by spreading an information bit stream with measurement symbols, which are the same as in the first embodiment, but also with a delta function delta of length L _L (n) spread the measurement sequence. It can be seen that the channel measurement frame designed in the second embodiment not only has the capability of supporting power enhancement transmission and increasing coverage distance as described in the first embodiment, but also can carry an information bit stream, thereby further improving the effectiveness of the wireless communication system.

For convenience of explanation, the channel measurement frame designed in the first embodiment is referred to as a first channel measurement frame, and the channel measurement frame designed in the second embodiment is referred to as a second channel measurement frame.

In a third embodiment of the application, a data frame is described in which the measured symbols are also delta functions delta with length L _L (n) spread the measurement sequence. Therefore, when the measurement symbols in the data frame are repeatedly transmitted, obvious spectral lines of the frequency domain spectrum can be avoided when the frequency domain spectrum is in integer multiples of the repetition frequency, so that the maximum total energy which can be transmitted can be completely transmitted under the condition of limited power spectrum density, the maximum transmission power amplification factor is increased, namely, the power enhancement transmission can be supported, the coverage distance is increased, and the effectiveness of a wireless communication system is further improved.

In the fourth embodiment of the present application, a communication method based on the first channel measurement frame is also described, which can support power enhancement transmission, increase coverage distance, and further improve the effectiveness of the wireless communication system.

In the fifth embodiment of the application, a communication method based on the second channel measurement frame is also described, and the communication method not only can support power enhancement transmission and increase coverage distance, but also can carry information bit stream, thereby further improving the effectiveness of the wireless communication system.

The present application will be described below by taking examples of embodiments one to five as examples with reference to the accompanying drawings.

Example 1

The first channel measurement frame may comprise one or more measurement symbols, which may alternatively be referred to as base measurement symbols. The measurement symbol may utilize a delta function delta of length L _L (n) spreading the measurement sequence;

wherein when L is greater than 1, n=1 to any value of L-1, δ _L (n) =0; when n=0, δ _L (n) =1. When L is equal to 1, n has a value, i.e., n=0, δ _L (n)＝1。

Taking the sequence C (N) with the length N as the measurement sequence as an example, N is an integer greater than 1, delta with the length L is utilized _L (n) spreading the sequences C (n), i.e. calculating the sequences C (n) and delta _L Cronecker product between (n), noted asIn addition, since n has a value when L is equal to 1, i.e., n=0, δ _L (n) =1, so->Equivalent to->I.e. C (n), in which case the measurement symbols are not necessary for the measurement sequenceAnd (5) obtaining the line spread spectrum.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a first channel measurement frame according to an embodiment of the present application. As shown in FIG. 3, taking L greater than 1 as an example, the measurement sequence C _i (N), N is 0.ltoreq.n-1, represented by delta of length L _L (n) measurement sequence C _i Element C in (n) _i (0)，C _i (1)，…，C _i (N-1) after spreading, the obtained post-spreading measurement sequence is inserted with L-1 elements 0 after each element, respectively, with respect to the pre-spreading measurement sequence.

In addition, after the time domain mapping is performed on the measurement sequence after the spreading, a time domain pulse sequence can be obtained, and the time domain pulse sequence can be called a measurement symbol. That is, the measurement symbol is a time domain pulse sequence generated based on the spread measurement sequence. Thus, in the description herein, the number of transmitted measurement symbols or the number of repetitions of the measurement symbols may also be referred to as the number of repetitions of the measurement sequence, i.e. one spread measurement sequence for each measurement symbol.

For example, each sequence referred to in the present application may be a perfect sequence, which means that the sequence x (n) has perfect periodic autocorrelation characteristics. For example, for a sequence x (N) of length N, its periodic autocorrelation function R (τ) is:

Where τ is the sequence shift of the sequence x (N), (n+τ) mod N represents the remainder of n+τ divided by N, which is the length of the sequence x (N), i.e. the number of elements in the sequence, as described above.

The sequence x (n) is a perfect sequence, i.e. the periodic autocorrelation function R (τ) of the sequence x (n) satisfies the following characteristics:

R(τ)＝0，τ≠0；

that is, as shown in fig. 4, the periodic autocorrelation function R (τ) =0 of the sequence x (n) holds for any τ+.0, and thus, the sequence x (n) can be referred to as a perfect sequence. For example, the sequences to which the application relates are all perfect sequences, i.e. the periodic autocorrelation function of the sequence fulfils this characteristic.

The measurement sequence may include one or more sequences of a sequence set, which is set forth below from embodiment 1, embodiment 2.

Wherein embodiment 1 enumerates several sets of sequences, a set of sequences as described in embodiment 1.1 comprises one or more first sequences, a set of sequences as described in embodiment 1.2 comprises one or more second sequences, a set of sequences as described in embodiment 1.3 comprises one or more second sequences and one or more first sequences.

Among them, embodiment 2 enumerates several methods of constructing sequences to obtain a sequence set. Embodiment 2.1 illustrates the construction of a new sequence using two sequences of length, and embodiment 2.2 illustrates the construction of a new sequence by performing one or more manipulations of the sequence.

In embodiment 1, several alternative sets of sequences are listed.

In embodiment 1.1, the measurement sequence is one or more sequences of a set of sequences comprising one or more of the following first sequences:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

For example, in the set of sequences shown in Table 1, the set of sequences may include perfect sequences of length less than 60 obtained by traversing the search, where, in C _i Representing a sequence, i is the index of the sequence, as listed in Table 1 as C ₁ To C ₈ A total of 8 sequences, and the sequence length of each sequence is represented by N correspondence therein. Optionally, table 1 may further include that each sequence may be applicable to, but not limited to, any one or more channels from index 0 to index 15, denoted as one or more of 0:15, and optionally, the number of channels to which the sequences in table 1 may be applicable may also be greater than 16.

TABLE 1 sequence set

In this embodiment, the measurement sequence is one or more first sequences in the sequence set, and it can be seen that the length of each first sequence is less than 60, so that the complexity of processing the channel measurement frame by the receiving end is reduced. Therefore, the first channel measurement frame can support power enhancement transmission, and the processing complexity of the first channel measurement frame can be reduced while the coverage distance is increased, so that the effectiveness of the wireless communication system is greatly improved.

In embodiment 1.2, the measurement sequence is one or more sequences of a set of sequences comprising one or more second sequences of:

A second sequence { 1.sub.1-1- } of length 806 1-1- -1-0-1-0;

The second sequence of length 1023 { -1 0-1-1-1- - -1-1-0-1-1-1-1-1-1-0-1-1-1-1 0-1-1-1.1-1.0- - -1.1-1-1-1-1.1.0-1 0- - -1- -1 0- -1- - - - - - - - - -, 1 0- - -1- -1.0-1-1-1-0-1-1-) 1 1 1 1-1 0-1-1 0 1 1 1-1 10 1 1 10 0 1 0-1 1-1-1 0-1 10 0-1 0-1-1-1 0 1 0-1-1 0-1 1-1 1-1 0 10 0 10 1 1-1-1 0-1 0-1 0 0 0-1 0 10 1-1 1 0-1 10 1-1 1-1-1 0 0 10 10 1-1 0-1 1-1 0 1 10 0 1 0-1 1 1-1 1 0-1-1 0-1 1 10 0 0 0 1 1 10 0-1 1-1 0 10 1-1 0 0-1 0-1 1 1 1 10 1 1 0-1 0 0-1 0 0 1 1-1 0 0-1-1 0 1 1 1 0-1 0 0 0-1 0-1-1 1-1-1 0-1 10 0 1 0-1-1 0-1 0-1-1 0 0 1 1 1-1-1 0 1 10 0-1 0-1 1-1 1 10 0 0 0 0 1 1-1 1 0-1-1-1 0 0-1 1-1-1 0 10 1 10 0-1 0 1-1 1 10 0-1 0 0-1 1-1 0 1 0-1 0 1-1 0 1-1 0 1 1 10 1-1 0 0 1 0-1-1 0 0 1 0-1 10 1 0-1 1 10 1-1 1 10 0 1 1 1 1 10 1 10 0-1 0 0 0 10 1 0-1-1 0 1-1-1 0-1 0 1 1-1 0 0-1 1 1 1-1 1 0-1-1 0 0 0 0-1 0 1 1 10 0-1 0 10 1 1-1 0-1 0 1-1 0-1 1-1 1 1-1 0 1-1 0 0-1 0-1-1 1-1 0 0 1-1 0-1-1 1-1 10 1-1 1-1 0 1 1 1-1-1 10 0 0 0 0-1 0-1 1 0-1-1 0 0 1 0-1 1-1 0-1 0 1-1 1 1 0-1-1-1 1-1 0 0 10 0 0-1 0 0 1-1-1 0 0 1 10 10 1 1-1 0 1 1 1- 10 1 1-1 0 0 10 1-1 0 0 0 0 1 10 1-1 0-1-1 0-1-1 1 1-1 0 1-1-1 10 10 0 10 10 1 10 0 10 0-1-1 1 10 0 1 0-1-1 1-1-1 0-1 1 1 10 0 10 1-1 10 0 10 0 0 0 1-1 1-1 0 0 1 1 0-1 1 1 1 10 1 10 0 0 0 1-1 1 10 0-1 10 0 1 0-1 10 1-1 0 1 1 0-1-1-1-1-1 0 0 0 10 0 1 1 10 1-1 0 0-1 0 0-1 0 0-1-1 1-1 0-1 10 1 1 1-1 0 0}.

In this embodiment, the measurement sequence may include one or more second sequences, and since the lengths of the second sequences are both larger, the measurement symbol may include more pulse sequences, which is favorable for further transmitting the maximum total energy that can be transmitted under the condition of limited power spectrum density, so that the maximum transmission power amplification factor is further increased, that is, the power enhancement transmission can be supported, the coverage distance is further increased, and the effectiveness of the wireless communication system is further improved.

In embodiment 1.3, the set of sequences may include one or more first sequences as described above, and one or more second sequences, as shown in table 2, which may include the first sequences C1 to C8 in table 1, and also include the second sequences C9 to C24, in table 2.

TABLE 2 sequence set

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It can be seen that the embodiment includes both the first sequence with a shorter length and the second sequence with a longer length, so that it is beneficial to combine the negotiation of the transceiver and the channel quality, and flexibly select a suitable measurement sequence from them, so as to support power enhancement transmission, increase coverage, and promote the effectiveness of the wireless communication system.

Embodiment 2 the present application also provides a sequence construction method including, but not limited to, those described in the following embodiments 2.1 and 2.2, to obtain a sequence set. Wherein, the greatest common divisor between the sequence lengths is 1, which can also be called sequence length prime, i.e. two sequences of sequence length prime are selected to construct a new sequence.

In embodiment 2.1, the sequence construction method can use two sequences of length to construct a new sequence.

Alternatively, the sequence construction method may select two first sequences of length elements from the first sequences shown in table 1 to construct a third sequence. Specific:

the third sequence is composed of sequence A ^* (n) and sequence B ^* (n) multiplying the elements by each other according to the element index;

sequence A ^* (N) is a sequence a (N) of length N1 repeated N2 times, a sequence of length N1 x N2 being obtained;

sequence B ^* (N) is a sequence B (N) of length N1 repeated N1 times, a sequence of length N2 x N1 being obtained;

wherein, the greatest common divisor between N1 and N2 is 1, N1 and N2 are integers greater than 1, and sequence a (N) and sequence B (N) are the first sequences described above.

Optionally, the set of sequences includes a plurality of third sequences, each third sequence being constructed from two first sequences of mutually equal length using this embodiment.

Alternatively, the sequence construction method may select two second sequences of length elements from the second sequences shown in table 2 to construct a fourth sequence. Specific:

the fourth sequence is represented by sequence C ^* (n) and sequence D ^* (n) multiplying the elements by each other according to the element index; sequence C ^* (N) is a sequence C (N) of length N3 repeated N4 times, a sequence of length N3 x N4 being obtained; the sequence D ^* (N) is a sequence D (N) of length N4 repeated N3 times, a sequence of length N4 x N3 being obtained; the greatest common divisor between N3 and N4 is 1, both N3 and N4 are integers greater than 1, and both sequence C (N) and sequence D (N) are the second sequences described above. Optionally, the set of sequences includes a plurality of fourth sequences, each fourth sequence being constructed from two second sequences of mutually identical length using this embodiment.

Optionally, the set of sequences includes a plurality of fourth sequences, each fourth sequence being constructed from two second sequences of mutually identical length using this embodiment.

For example, as shown in the schematic diagram of fig. 5, taking C1 and C2 shown in table 1 as examples, that is, n1=6, n2=13, both satisfy the condition that the greatest common divisor is 1, C1 is repeated 13 times to obtain a sequence C with a length of 6×13 ^* 1, a step of; repeating C2 for 6 times to obtain sequence C with length of 13×6 ^* 2; further, sequence C ^* 1 and sequence C ^* 2 are multiplied element by element according to the element index to obtain the sequence {1 0-1 0 0 1-1 0-1 0 1 1 0 0 1 0 0 1 0-1 0-1 0 0 0 0 0 1 1 0-1-1 0-1 1 0 1 0 0-1-1 0-1 0-1 1 0 0 1 0 0 1 0 1 0 0 1 1 0 1 0 0 0 0 0-1 1 0 1-1-0 } of length 78 as shown in fig. 5.

Alternatively, the construction method described in embodiment 2.1 may also be directed to the first sequence and the second sequence in table 2 to construct a new sequence. In addition, embodiment 2.1 may construct a new sequence for the first sequence and the second sequence described above, but is not limited to, for example, a new sequence may be constructed for the third sequence of two length integrins, or a new sequence may be constructed for the fourth sequence of two length integrins.

Embodiment 2.2 a new sequence is constructed by performing one or more operations on the sequence.

Optionally, the set of sequences includes a fifth sequence, the fifth sequence being a sequence obtained by performing one or more of the following on the first sequence:

the cyclic shift is performed so that the cyclic shift,

in the reverse order of the steps,

the inverse of the original, or,

d times sampling, wherein the greatest common divisor between d and N1 is 1, and d is an integer greater than 0.

The sequence obtained by sampling the first sequence d times is a sequence formed by repeating the first sequence d times, and each d elements are extracted to form a sequence formed by one element.

Optionally, the set of sequences includes a plurality of fifth sequences, each fifth sequence being constructed from one of the first sequences using the embodiment.

Optionally, the measurement sequence includes a sixth sequence, the sixth sequence being a sequence obtained by performing one or more of the following on the second sequence:

The cyclic shift is performed so that the cyclic shift,

in the reverse order of the steps,

the inverse of the original, or,

d times sampling, wherein the greatest common divisor between d and N1 is 1, and d is an integer greater than 0. The sequence obtained by sampling the second sequence d times is a sequence formed by repeating the second sequence d times, and each d elements are extracted to form a sequence formed by one element.

Optionally, extracting a first element from every d elements; or extracting the last element from every d elements; or each d elements may be extracted to obtain one element, which is not limited by the present application.

Optionally, the set of sequences includes a plurality of sixth sequences, each fifth sequence being constructed from one of the second sequences using this embodiment.

Wherein the cyclic shift comprises a cyclic right shift or a cyclic left shift, wherein the cyclic right shift is to place the shifted-out bit in a high position of the sequence; the cyclic shift left is to put the shifted high bit into the low bit of the sequence. For example, taking the sequence C1{1,0, -1,0, 1} in Table 1 as an example, the C1 cycle is shifted right by 2 bits to obtain the sequence C "1{0,1, 0, -1,1}, and the new sequence constructed is the sequence C"1{0,1, 0, -1,1}.

For another example, the sequences C2{1,0,1,0,0,1, -1,0, -1, for example, C2{1,0,1,0,0,1, -1,0, -1,1} is in reverse order, the sequence C "2{1, -1,0,1, -1,1,0,0,1,0,1} is obtained, and the new sequence constructed is the sequence C"2{1, -1,0,1, -1,1,0,0,1,0,1}.

For another example, the sequences C3{1, -1,1,0,1,0, -1, -1,0,1, -1,0, -1, -1} for example, -1, -1,0,1, -1,0, -1, -1-as an example, -1, -1,0,1, -1, -1,0,1, 0,1, the new sequence constructed is the sequence C "3{ -1, -1,0,1, the new sequence constructed is the sequence C"3{ -1.

For example, as shown in fig. 6, taking the sequence C1 in table 1 as an example, since the length of the sequence C1 is 6, assuming that d is equal to 5, the two elements are mutually equal, and the first element is extracted from each 5 elements, then repeating the sequence C1 5 times, a sequence as shown in fig. 6 (i.e., the length is 6*5 =30) is obtained, one is extracted from each 5 elements, and a new sequence is obtained as shown in fig. 6.

It should be noted that the above example is described by taking the above operation as an example, and a new sequence is constructed for the above operations, such as reversing the first sequence, then reversing the first sequence, and so on, which is not described herein.

Alternatively, the new sequence obtained by the construction method described in embodiment 2.2 for the first sequence may be referred to as an equivalent sequence of the first sequence, and the new sequence constructed by the construction method described in embodiment 2.2 for the second sequence may be referred to as an equivalent sequence of the second sequence.

It should be noted that the sequences described in embodiment 1 and embodiment 2 may be partially or wholly included in a sequence set to select a measurement sequence for a channel measurement frame, that is, the present application includes, but is not limited to, the sequence set described above.

Example two

The second channel measurement frame is obtained by spreading the information bit stream with measurement symbols, which are identical to those described in embodiment one, by a delta function delta of length L _L (n) spread the measurement sequence.

Wherein the measurement sequence comprises one or more sequences of a set of sequences, related embodiments of which are described in relation to embodiments 1 and 2, and which are not described in detail herein. Accordingly, the measurement symbol is a time domain pulse sequence corresponding to the spread measurement sequence (see fig. 3 for a specific spreading example, which is not described in detail herein).

Referring to fig. 7, fig. 7 is a schematic diagram of a structure of a second channel measurement frame according to an embodiment of the application. As shown in fig. 7, the measurement symbol s is represented by b (0), b (1), …, b (n) as the information bit stream b, where the measurement symbol s is represented by the pair measurement sequence C shown in fig. 3 _i (n) spreading the information bit stream b (0), b (1), …, b (n), the measured symbols s being spread, which can be noted asA second channel measurement frame as shown in fig. 7 may be obtained.

It can be seen that the second channel measurement frame is a channel measurement frame carrying an information bit stream. The second channel measurement frame not only has the measurement symbols described in the first embodiment, but also can spread the information bit stream by the measurement symbols to obtain a channel measurement frame carrying the information bit stream. Therefore, the second channel measurement frame not only can support power enhancement transmission and increase coverage, but also can carry information bit streams, and further improves the effectiveness of the system.

Example III

The measurement symbols in the data frame are also delta functions delta with length L _L (n) spread the measurement sequence. Therefore, when the measurement symbols in the data frame are repeatedly transmitted, obvious spectral lines of the frequency domain spectrum can be avoided when the frequency domain spectrum is in integer multiples of the repetition frequency, so that the maximum total energy which can be transmitted can be completely transmitted under the condition of limited power spectrum density, the maximum transmission power amplification factor is increased, namely, the power enhancement transmission can be supported, the coverage distance is increased, and the effectiveness of a wireless communication system is further improved.

The following description will take a data frame in a UWB system as an example.

Referring to fig. 8, fig. 8 is a schematic diagram of a frame structure of a data frame in a UWB system. As shown in fig. 8, the frame structure of the data frame may also be referred to as the structure of a physical layer protocol data unit (physical protocol data unit, PPDU). The data frame includes, among other things, a synchronization header (synchronization header, SHR), a physical layer header (physical layer header, PHR), and a physical bearer field (physical payload field, PHY payload field). After the transmitting end transmits the data frame, the receiving end can detect and synchronize the data frame according to the SHR in the data frame, and the PHR carries indication information of a physical layer, such as modulation coding information, PPDU length and the like, so as to assist the receiving end to correctly demodulate the data frame. The SHR includes a synchronization field (synchronization field, SYNC) and a frame start-of-frame delimiter (SFD) field, as shown in fig. 9. Wherein the synchronization field may comprise a plurality of preamble symbols corresponding to the preamble sequence. For example, the current relevant parameters of the data frame shown in fig. 8 may be as shown in table 3, such as parameter T in the duration of SHR _pre The optional transmission duration of the data frame may be known. The number of preamble symbols in the packet sync sequence in table 3 is known that the preamble symbols are repeated 16 to 4096 times in the time domain to transmit the maximum total energy limited by the rule.

Table 3 parameters relating to data frames

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It can be seen that, the preamble symbol in the current data frame is repeatedly transmitted (16 to 4096 times as shown in table 3), which can cause the frequency domain spectrum to have obvious spectral lines at integer multiples of the repetition frequency, so as to affect the maximum transmission power that can be adopted, further limit the power amplification factor of the transmission signal within 1ms, and correspondingly reduce the coverage area.

Thus, a third embodiment of the present application provides a data frame including one or more measurement symbols but using a delta function delta of length L _L (n) the measurement symbol described in embodiment one is obtained by spreading the measurement sequence. That is, one or more measurement symbols in the data frame may be preamble symbols in a packet synchronization sequence in the data frame, so that a transmission duration of the measurement symbols in the data frame may be prolonged, for example, to be longer than 1 microsecond, so that an obvious spectral line of a frequency domain spectrum at an integer multiple of a repetition frequency may be avoided, and further, a power amplification factor of a transmission signal in 1ms may be relatively increased, so that power enhancement transmission may be supported and coverage may be increased.

In addition, in the fourth embodiment, the present application provides a communication method based on the first channel measurement frame, and in the fifth embodiment, compared with the communication method based on the second channel measurement frame, which uses the data frame to perform the channel measurement, as shown in table 3, the minimum data frame has a transmission duration lasting more than twenty microseconds, and the communication methods described in the fourth embodiment and the fifth embodiment can also reduce the channel measurement overhead. For example, in the sensing and/or measurement scenario based on UWB systems, frequent channel measurements may be involved, so that the overhead of channel measurements may be greatly reduced.

Optionally, the present application may further provide a channel measurement frame called a third messageThe channel measurement frame may include one or more measurement symbols, and each measurement symbol may correspond to one or more sequences in any one of the sequence sets in embodiment 1, and may also correspond to the sequence obtained by the construction in embodiment 2. Alternatively, the transceiver may select an appropriate sequence from the two according to the negotiation or channel quality, to form the third channel measurement frame. That is, the third channel measurement frame does not spread the measurement sequence more than the first channel measurement frame or the second channel measurement frame, e.g., delta function delta of length L _L In (n), L is equal to 1. In this way, the third channel measurement frame may consider the processing capability of the receiving end, and select a relatively long sequence as the measurement sequence, so that the measurement symbol includes more time domain pulse sequences, thereby also supporting power enhancement transmission, increasing coverage, and improving the effectiveness of the wireless communication system.

Correspondingly, the present application may also provide another data frame, where each measurement symbol in the data frame may correspond to one or more sequences in any sequence set in embodiment 1 above, and may also correspond to the sequence obtained by the construction in embodiment 2. Alternatively, the transceiver may select an appropriate sequence from the two according to negotiation or channel quality as the measurement sequence of the data frame. That is, the data frame is no longer spread over the measurement sequence, e.g., delta function delta of length L, as compared to the data frame described in embodiment three _L In (n), L is equal to 1. In this way, the data frame can consider the processing capability of the receiving end, and a relatively longer sequence is selected as the measurement sequence, so that the measurement symbol comprises more time domain pulse sequences, and therefore, the power enhancement transmission can be supported, the coverage area is increased, and the effectiveness of the wireless communication system is improved.

Optionally, each channel measurement frame designed by the present application includes, but is not limited to, a frame for channel measurement, and information transmission can also be performed. Correspondingly, the data frame designed by the application can also carry out channel measurement, and optionally, the thought of the design of the application can also be applied to frames with other functions, such as ranging or sensing, and the like, and the application is not limited.

Example IV

Referring to fig. 10, fig. 10 is a flowchart of a communication method 100 according to an embodiment of the present application, and as shown in fig. 10, the communication method 100 is a communication method based on a first channel measurement frame, and is illustrated by taking a first device as a transmitting end and a second device as a receiving end as an example from the perspective of interaction between the first device and the second device. The communication method 100 may include, but is not limited to, the following steps:

s101, a first device determines a first channel measurement frame, wherein the first channel measurement frame comprises one or more measurement symbols;

Wherein, as mentioned above, each measurement symbol is obtained by spreading the measurement sequence with a delta function of length L, which is not described in detail herein.

Alternatively, the number of measurement symbols constituting the first channel measurement frame may be determined by negotiation between the first device and the second device (i.e., negotiation between the transceiver ends), for example, the first device and the second device may be determined according to the signal strength and the respective device capabilities.

S102, the first device sends the first channel measurement frame, and correspondingly, the second device receives the first channel measurement frame;

alternatively, the first device may transmit the first channel measurement frame through the UWB module, and correspondingly, the second device may receive the first channel measurement frame through the UWB module.

Optionally, the first device may send the first channel measurement frame in a multi-millisecond segmented transmission manner, so as to further increase the maximum transmission power of the channel measurement frame by a multiple. For example, as shown in fig. 11, the first channel measurement frames may be transmitted within 3 durations of 1 ms, respectively. Alternatively, for the case where the first channel measurement frame is made up of multiple measurement symbols, the same number of measurement symbols may be transmitted in each millisecond, such that all segments in the multiple milliseconds together make up one channel measurement frame.

S103, the second device determines a channel measurement result according to the received first channel measurement frame.

Wherein the steps S101 and/or S103 may be optional, i.e. the communication method 100 may not comprise steps S101, S103.

The second device, in order to obtain the channel measurement result, locally generates the measurement sequence identical to the first device side, and then spreads the measurement sequence by using a delta function with length of L to obtain a spread measurement sequence; performing correlation operation on the received signals by using the spread measurement sequence to obtain a correlation operation result; and determining channel measurement results, such as the occurrence time of a correlation peak value, a signal to noise ratio and the like, according to the correlation operation results.

Alternatively, the second device may determine the measurement sequence used for channel measurement based on the channel on which it is operating and the negotiation result with the first device.

Therefore, in the communication method 100, the measurement symbol is obtained by spreading the measurement sequence, so that the transmission time of one measurement symbol is longer than 1 microsecond, and obvious spectral lines of the frequency domain spectrum caused by repetition of the measurement symbol are avoided when the frequency domain spectrum is an integer multiple of the repetition frequency, so that the maximum total energy which can be transmitted as far as possible under the rule of limited power spectral density, the maximum transmission power amplification factor is increased, that is, the power enhancement transmission can be supported, and the coverage distance is increased.

Example five

The present application also provides a communication method 200, which is different from the communication method 100 described above in that the communication method 200 is a communication method based on the second channel measurement frame described in the second embodiment, and the second channel measurement frame may also carry an information bit stream, so that not only channel measurement but also information transmission can be achieved.

Referring to fig. 12, fig. 12 is a flowchart of a communication method 200 according to an embodiment of the present application, where the communication method 200 is still illustrated by taking a first device as a transmitting end and a second device as a receiving end from the perspective of interaction between the first device and the second device. As shown in fig. 12, the communication method 200 includes, but is not limited to, the steps of:

s201, the first device generates an information bit stream according to information to be transmitted;

wherein the information bit stream is composed of 0 and 1, or 0 and-1, or 1 and-1. The application does not develop any explanation of the relevant operation of how the information to be transmitted generates the information bit stream.

S202, the first device selects a measurement sequence C _i (a sequence C in the sequence set _i ) Using delta function delta of length L _L (n) for measurement sequence C _i Spread spectrum is carried out to obtain a measurement symbol s;

alternatively, the specific operation of step S202 may be referred to as spread spectrum content shown in fig. 3, and will not be described in detail herein.

S203, the first device spreads the information bit stream b by using the measurement symbol S to obtain a second channel measurement frame;

wherein the second channel measurement frame is a pulse sequence t to be transmitted, i.e. a pulse sequence to be transmittedSpecifically, as shown in fig. 7, details are not described here.

S204, the first equipment sends the second channel measurement frame, and correspondingly, the second equipment receives the second channel measurement frame;

alternatively, the pulse sequence t may be continuously transmitted, or may be transmitted in a multi-millisecond segmented transmission mode.

S205, the second device determines a channel measurement result and an information bit stream b according to the received second channel measurement frame.

This step S201 to S203 may be optional. I.e. the communication method 200 may not comprise steps S201 to S203.

Correspondingly, similar to the step S103, after the second device locally generates the measurement sequence identical to the measurement sequence of the first device side, the second device further needs to spread the measurement sequence by using the delta function with the length of L to obtain a spread measurement sequence; performing correlation operation on the received signals by using the spread measurement sequence to obtain a correlation operation result; and determining channel measurement results, such as the occurrence time of a correlation peak, a signal-to-noise ratio and the like, and an information bit stream b according to the correlation operation results.

As can be seen, the communication method 200 not only can support power enhanced transmission and increase coverage, but also can carry an information bit stream, thereby further improving the effectiveness of the system.

The present application also provides a communication method 300, which is different from the above-mentioned communication methods 100 and 200 in that, in the communication method 300, the communication method can not only utilize the UWB system described in the communication method 100 and 200 to perform channel measurement, but also transmit the channel measurement result and/or perform the negotiation process with the aid of the narrowband module.

Referring to fig. 13, fig. 13 is a schematic diagram of a communication method 300 according to an embodiment of the present application, where the communication method 300 is illustrated from the perspective of interaction between an initiating station and a responding station, and the initiating station is taken as a transmitting end, and the responding station is taken as a receiving end as an example. The initiating station may include a UWB module and a narrowband communication module as shown in fig. 1, and the responding station may also include a UWB module and a narrowband communication module. In fig. 13, the narrowband communication modules are represented by light gray filled modules, and the UWB modules are represented by dark gray filled modules. In addition, one or more responding stations may be provided, each operating identically, so the communication method 300 is illustrated with one initiating station and one responding station as examples. As shown in fig. 13, the communication method 300 includes, but is not limited to, the steps of:

S301, an initiating station sends a channel measurement statement (Announit) frame;

wherein the channel measurement statement frame is used to inform the responding station that channel measurements are to be made. In addition, the channel measurement statement frame may carry specification information of the channel measurement frame, for example, the number of measurement symbols included in the channel measurement frame, whether multi-millisecond segment transmission is adopted, spread spectrum information, and the like. Wherein the spreading information may be delta of spreading the measurement sequence as described above _L (n)。

Wherein the channel measurement claim frame can be transmitted and received by a narrowband communication module,

s302, an initiating station transmits a channel measurement frame; accordingly, the responding station may receive the channel measurement frame;

after the channel measurement declaration frame is sent for a period of time, the initiating station can send the channel measurement frame according to the specification information of the channel measurement frame carried in the channel measurement declaration frame. The channel measurement frame may be referred to in the above description of the communication method 100 and the communication method 200, and will not be described in detail herein.

Wherein the channel measurement frames may be transmitted and received continuously using a UWB module or in multi-millisecond segments. The communication method 300 shown in fig. 13 is illustrated by taking multi-millisecond segment transmission and reception as an example.

S303, the initiating station sends a trigger frame to the responding station; accordingly, the responding station may receive the trigger frame;

the trigger frame is used for indicating the response station to send the channel measurement result. The trigger frame may carry specification information such as format of a channel measurement report in the channel measurement result.

S304, responding to the trigger frame by the station, sending a channel measurement result, and correspondingly, receiving the channel measurement result by the initiating station.

Among them, a Trigger frame (Trigger) and a channel measurement result (Report) can be transmitted and received through a narrowband communication module, as shown in fig. 13. The response station may generate a channel measurement result according to specification information of a channel measurement report carried in the trigger frame.

As can be seen, the communication method 300 may complete channel measurements through channel measurement declaration frames, channel measurement frames, trigger frames, etc., so that the initiating station is made aware of the channel measurement results. In addition, because of the channel measurement frame provided by the present application, the communication method 300 can support power-enhanced transmission, and increase coverage, so that more stations can participate in channel measurement as response stations.

Referring to fig. 14, fig. 14 is a schematic diagram of a communication method 400 according to an embodiment of the present application, where the communication method 400 is different from the communication method 300 described above in that an initiating station may request a responding station to assist the initiating station in making channel measurements. In fig. 14, the narrowband communication modules are represented by light gray filled modules, and the UWB modules are represented by dark gray filled modules. As shown in fig. 14, the communication method 400 includes, but is not limited to, the steps of:

S401, sending a voting frame (Poll) by an initiating station; accordingly, the response site may receive the voting frame;

the voting frame is used for requesting the responding station to assist the initiating station to conduct channel measurement. In addition, the voting frame may carry specification information of the channel measurement frame, for example, the number of measurement symbols included in the channel measurement frame, whether multi-millisecond segment transmission is adopted, spread spectrum information, and the like. Wherein the spreading information may be delta of spreading the measurement sequence as described above _L (n)。

Wherein, the voting frame can be sent and received by adopting a narrow-band communication module.

S402, the response station can reply a response frame to the initiating station, and correspondingly, the initiating station can receive the response frame;

after receiving the voting frame, the response station can reply the response frame to the initiating station when the sending station is willing to assist in channel measurement and has the capability of meeting the requirements such as specification information of the channel measurement frame, so as to inform the initiating station to agree to assist in channel measurement.

S403, the response station can send a channel measurement frame, and correspondingly, the initiating station can receive the channel measurement frame;

the response station can generate and send the channel measurement frame according to the specification information of the channel measurement frame carried by the voting frame. The detailed description of the information measurement frame can be found in the foregoing, and will not be described in detail herein.

S404, the initiating station determines a channel measurement result according to the received channel measurement frame.

It can be seen that the communication method 400 can complete channel measurements through voting frames, response frames, channel measurement frames, etc., so that the initiating station is made aware of the channel measurements. In addition, because of the channel measurement frame provided by the present application, the communication method 400 can support power enhanced transmission, and increase coverage, so that more stations can participate in channel measurement of an initiating station as a response station.

In addition, the channel measurement frame designed in the present application may also be applied to a ranging and/or sensing scenario in a wlan, where the ranging and/or sensing scenario in the wlan may use the flow described in the foregoing communication method 300 or the communication method 400, and is different in that, in the ranging and/or sensing scenario, a response station in the communication method 300 needs to report a ranging and/or sensing result in addition to a channel measurement result, and optionally, a response station in the communication method 300 may also send a channel measurement frame to an initiating station, so that both the initiating station and the response station may determine the ranging and/or sensing result. Accordingly, in the ranging and/or sensing scenario, the initiating station in the communication method 400 needs to determine the ranging and/or sensing result in addition to the channel measurement result, and optionally, the initiating station in the communication method 400 may also send a channel measurement frame to the initiating station, so that both the initiating station and the responding station may determine the ranging and/or sensing result.

In the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

In addition, in order to facilitate the clear description of the technical solution of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion that may be readily understood.

In the description of the present application, unless otherwise indicated, "/" means that the objects associated in tandem are in a "or" relationship, e.g., A/B may represent A or B; the "and/or" in the present application is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural.

In the present application, the same or similar parts between the embodiments may be referred to each other unless specifically stated otherwise. In the embodiments of the present application, and the respective implementation/implementation methods in the embodiments, if there is no specific description and logic conflict, terms and/or descriptions between different embodiments, and between the respective implementation/implementation methods in the embodiments, may be consistent and may refer to each other, and technical features in the different embodiments, and the respective implementation/implementation methods in the embodiments, may be combined to form a new embodiment, implementation, or implementation method according to their inherent logic relationship. The embodiments of the present application described below do not limit the scope of the present application.

The embodiment of the application can divide the functional modules of the first device and the second device according to the method example, for example, each functional module can be divided corresponding to each function, or two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation. The communication device according to the embodiment of the present application will be described in detail with reference to fig. 15 and 16. Wherein the communication means is a first device or a second device, further the communication means may be means in the first device; alternatively, the communication device is a device in the second apparatus.

In the case of using an integrated unit, referring to fig. 15, fig. 15 is a schematic structural diagram of a communication device 1500 according to an embodiment of the present application. As shown in fig. 15, the communication apparatus 1500 includes a transceiver unit 1501 and a processing unit 1502, wherein:

in an alternative embodiment, the communication apparatus 1500 may perform the operations related to the first device in the communication method 100 described above:

A processing unit 1502 configured to determine a first channel measurement frame, where the first channel measurement frame includes one or more measurement symbols; the channel measurement frame includes one or more measurement symbols; the measurement sign is a delta function delta with length L _L (n) spreading the measurement sequence;

wherein the measurement sequence comprises one or more sequences of a set of sequences, which set of sequences is described in relation to embodiments 1 and 2 above, and will not be described in detail herein.

A transceiver 1501 for transmitting the first channel measurement frame.

In another alternative embodiment, the communication apparatus may perform the operations related to the second device in the communication method 100 described above:

a transceiver unit 1501 for receiving a first channel measurement frame, the first channel measurement frame including one or more measurement symbols; the first channel measurement frame includes one or more measurement symbols; the measurement sign is a delta function delta with length L _L (n) spreading the measurement sequence;

A processing unit 1502 is configured to determine a channel measurement result according to the first channel measurement frame.

In yet another alternative embodiment, the communication apparatus may perform the operations related to the first device in the communication method 200 described above:

a processing unit 1502, configured to determine a measurement symbol, and spread the information bit stream with the measurement symbol to obtain a second channel measurement frame; the measurement sign is a delta function delta with length L _L (n) spreading the measurement sequence;

A transceiver 1501 for transmitting the second channel measurement frame.

In another alternative embodiment, the communication apparatus may perform the operations related to the second device in the communication method 200 described above:

a transceiver unit 1501 for receiving a second channel measurement frame obtained by spreading an information bit stream using measurement symbols; the measurement sign is a delta function delta with length L _L (n) spreading the measurement sequence;

A processing unit 1502 is configured to determine a channel measurement result and an information bit stream according to the second channel measurement frame.

The related description of the first channel measurement frame may be referred to in the first embodiment, and the related description of the second channel measurement frame may be referred to in the second embodiment, which will not be described in detail herein.

Alternatively, other operations of the communication device may be referred to in the description of the method embodiments described above, and will not be described in detail herein.

For convenience of explanation, referring to fig. 16, fig. 16 is a schematic structural diagram of a communication device 1600 according to an embodiment of the present application, where the communication device 1600 includes a processor 1601 and a transceiver 1602. The communication device 1600 may be a first MLD or a second MLD, or a chip therein. Fig. 16 shows only the main components of the communication device 1600. In addition to the processor 1601 and transceiver 1602, the communication device may further include a memory 1603, and input-output devices (not shown).

The processor 1601 is mainly configured to process a communication protocol and communication data, control the entire communication device, execute a software program, and process data of the software program. The memory 1603 is mainly used for storing software programs and data. The transceiver 1602 may include radio frequency circuitry, which is primarily used for conversion of baseband signals to radio frequency signals and processing of the radio frequency signals, and antennas. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving data input by a user and outputting data to the user.

The processor 1601, transceiver 1602, and memory 1603 may be connected by a communication bus.

When the communication device is powered on, the processor 1601 may read the software program in the memory 1603, interpret and execute instructions of the software program, and process data of the software program. When data needs to be transmitted wirelessly, the processor 1601 performs baseband processing on the data to be transmitted, and outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is transmitted to the communication device, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1601, and the processor 1601 converts the baseband signal into data and processes the data.

In another implementation, the radio frequency circuitry and antenna may be provided separately from the processor performing the baseband processing, e.g., in a distributed scenario, the radio frequency circuitry and antenna may be in a remote arrangement from the communication device.

The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;

(2) A set of one or more ICs, optionally including storage means for storing data, instructions;

(3) An ASIC, such as a Modem (Modem);

(4) Modules that may be embedded within other devices;

(5) A receiver, an intelligent terminal, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a cloud device, an artificial intelligent device, and the like;

(6) Others, and so on.

In an alternative implementation manner, the communication device is a first device, and the related operations of the first device in the foregoing method embodiment may be performed: the transceiver 1602 is configured to perform S102 in the above-described communication method 100, and to perform S204 in the communication method 200, and to perform S301, S302, S303, S304 in the communication method 300, and to perform S401, S402, S403 in the communication method 400; the processor 1601 is configured to perform S101 in the above-described communication method 100, and to perform S201 to S203 in the communication method 200, and to perform S404 in the communication method 400.

In an alternative implementation manner, the communication device is a second device, and the related operations of the second device in the foregoing method embodiment may be performed: the transceiver 1602 is configured to perform S102 in the above-described communication method 100, and to perform S204 in the communication method 200, and to perform S301, S302, S303, S304 in the communication method 300, and to perform S401, S402, S403 in the communication method 400; the processor 1601 is configured to perform S103 in the communication method 100 described above, and to perform S205 in the communication method 200.

The processor may be configured to perform, for example and without limitation, baseband related processing and the transceiver may be configured to perform, for example and without limitation, radio frequency transceiving. The above devices may be provided on separate chips, or may be provided at least partially or entirely on the same chip. For example, the processor may be further divided into an analog baseband processor and a digital baseband processor. Wherein the analog baseband processor may be integrated on the same chip as the transceiver and the digital baseband processor may be provided on a separate chip. With the continued development of integrated circuit technology, more and more devices may be integrated on the same chip, for example, a digital baseband processor may be integrated on the same chip with a variety of application processors (e.g., without limitation, graphics processors, multimedia processors, etc.). Such chips may be referred to as system on chips (system on chips). Whether the individual devices are independently disposed on different chips or integrally disposed on one or more chips is often dependent on the specific needs of the product design. The embodiment of the application does not limit the specific implementation form of the device.

It may be understood that the chip shown in the embodiment of the present application may include a narrowband chip or an ultra-wideband chip, and the embodiment of the present application is not limited thereto. The steps of sending the sensing packet as shown above may be performed by the ultra-bandwidth chip, and whether the remaining steps are performed by the ultra-bandwidth chip or not is not limited by the embodiment of the present application.

It is appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments are not necessarily all referring to the same embodiment throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the sequence number of each process does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Although the application is described herein in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a study of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Claims

1. A method of communication, the method comprising:

determining a channel measurement frame, the channel measurement frame comprising one or more measurement symbols;

transmitting the channel measurement frame;

the measurement sign is a delta function delta with length L _L (n) spreading the measurement sequence;

l is an integer greater than 0;

the measurement sequence is one or more sequences in a sequence set comprising one or more first sequences of:

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

2. The method of claim 1, wherein the set of sequences further comprises one or more of the following second sequences:

A second sequence { 1.sub.1-1- } of length 806 1-1- -1-0-1-0;

3. The method according to claim 1 or 2,wherein the sequence set further comprises a third sequence consisting of sequence A ^* (n) and sequence B ^* (n) multiplying the elements by each other according to the element index;

the sequence A ^* (N) is a sequence a (N) of length N1 repeated N2 times, a sequence of length N1 x N2 being obtained;

the sequence B ^* (N) is a sequence B (N) of length N1 repeated N1 times, a sequence of length N2 x N1 being obtained;

the greatest common divisor between the N1 and the N2 is 1, the N1 and the N2 are integers greater than 1, and the sequence A (N) and the sequence B (N) are the first sequence.

4. A method according to claim 2 or 3, wherein the set of sequences further comprises a fourth sequence, the fourth sequence being a sequence consisting of sequence C ^* (n) and sequence D ^* (n) multiplying the elements by each other according to the element index;

the sequence C ^* (N) is a sequence C (N) of length N3 repeated N4 times to obtain a sequence of length N3 ^* A sequence of N4;

the sequence D ^* (N) is a sequence D (N) of length N4 repeated N3 times, a sequence of length N4 x N3 being obtained;

the greatest common divisor between the N3 and the N4 is 1, the N3 and the N4 are integers greater than 1, and the sequence C (N) and the sequence D (N) are the second sequence.

5. The method according to any one of claims 1 to 4, wherein the measurement sequence further comprises a fifth sequence, which is a sequence obtained by performing one or more of the following on the first sequence:

the cyclic shift is performed so that the cyclic shift,

in the reverse order of the steps,

the inverse of the original, or,

d times sampling, wherein the greatest common divisor between d and N1 is 1, and d is an integer greater than 0;

the sequence obtained by sampling the first sequence d times is a sequence formed by repeating the first sequence d times, and each d elements in the sequence are extracted to form an element.

6. The method according to any one of claims 2 to 5, wherein the measurement sequence further comprises a sixth sequence, the sixth sequence being a sequence obtained by performing one or more of the following on the second sequence:

the cyclic shift is performed so that the cyclic shift,

in the reverse order of the steps,

the inverse of the original, or,

the sequence obtained by sampling the second sequence d times is a sequence formed by repeating the second sequence d times, and each d elements in the sequence are extracted to form an element.

7. A method of communication, the method comprising:

receiving a channel measurement frame, the channel measurement frame comprising one or more measurement symbols;

determining a channel measurement result according to the channel measurement frame;

l is an integer greater than 0;

a first sequence {1,0, -1,0, 1} of length 6;

a first sequence {1,0,1,0,0,1, -1,0, -1, 1} of length 13;

a first sequence {1, -1,1,0,1,0 of length 21, -1, -1,0,1, -1,0, -1, -1};

8. The method of claim 7, wherein the set of sequences further comprises one or more of the following second sequences:

A second sequence { 1.sub.1-1- } of length 806 1-1- -1-0-1-0;

9. The method of claim 7 or 8, wherein the sequenceThe set further comprises a third sequence consisting of sequence A ^* (n) and sequence B ^* (n) multiplying the elements by each other according to the element index;

10. The method of claim 8 or 9, wherein the set of sequences further comprises a fourth sequence, the fourth sequence being a sequence consisting of sequence C ^* (n) and sequence D ^* (n) multiplying the elements by each other according to the element index;

the sequence C ^* (N) is a sequence C (N) of length N3 repeated N4 times, a sequence of length N3 x N4 being obtained;

11. The method according to any one of claims 7 to 10, wherein the measurement sequence further comprises a fifth sequence, the fifth sequence being a sequence obtained by performing one or more of the following on the first sequence:

the cyclic shift is performed so that the cyclic shift,

in the reverse order of the steps,

the inverse of the original, or,

12. The method according to any one of claims 8 to 11, wherein the measurement sequence further comprises a sixth sequence, the sixth sequence being a sequence obtained by performing one or more of the following on the second sequence:

the cyclic shift is performed so that the cyclic shift,

in the reverse order of the steps,

the inverse of the original, or,

13. A communication device comprising a processor which invokes a computer program stored in a memory to implement a method as claimed in any one of claims 1 to 6.

14. A communication device comprising a processor which invokes a computer program stored in a memory to implement a method according to any of claims 7 to 12.

15. A computer readable storage medium, characterized in that a computer program is stored in the computer readable storage medium, which, when being executed, implements the method according to any of claims 1-12.