Method and device for wireless transmission

Patent metadata

Field	Value
Publication number	US-11711749-B2
Application number	US-202117327423-A
Country	US
Kind code	B2
Filing date	May 21, 2021
Priority date	May 22, 2020
Publication date	Jul 25, 2023
Grant date	Jul 25, 2023

Abstract

A wireless transmission method and a transceiver for wireless transmission are disclosed. According to this method, information to be transmitted and transmission control information are encoded into packet length information of wireless frames for transmission, wherein the transmission control information is filled into synchronization packets, sequence number packets and data packets, and the information to be transmitted is only filled into the data packets. Specifically, the method includes sequentially polling data for transmission in units of transmission sequences, and longitudinally encoding the information to be transmitted and data check information into the data packets. The transmission sequences are separated and sorted by the synchronization packets and the sequence number packets, and the data packets are sorted by sequence number fields in the transmission sequence.

First claim

The invention claimed is:

1. A wireless information transmission method, comprising:
obtaining data to be transmitted, wherein the data to be transmitted is carried in packet length information of a plurality of wireless frames, wherein the packet length information of each wireless frame corresponds to a synchronization packet, a sequence number packet, or a data packet, and the data to be transmitted are carried in data packets only;
dividing the data to be transmitted into a plurality of data groups, wherein each data group is filled into a plurality of data packets in units of bytes, and wherein 8 bits of each byte of the data group are filled into eight different data packets, respectively;
adding at least one synchronization packet or at least one sequence number packet before a plurality of data packets corresponding to each data group to form a plurality of transmission sequences comprising a first transmission sequence and one or more subsequent transmission sequences, wherein the first transmission sequence comprises synchronization packet information and the one or more subsequent transmission sequences comprise sequence number packet information;
generating packet length information of each wireless frame based on contents of the synchronization packet, the sequence number packet, or the data packets in the plurality of transmission sequences, and then generating the wireless frame; and
transmitting the plurality of wireless frames corresponding to the plurality of transmission sequences by polling, in an order that the first transmission sequence comprising the synchronization packet information is followed by the one or more subsequent transmission sequences comprising the sequence number packet information.

2. The wireless transmission method according to claim 1 , wherein each data group comprises data check information, wherein the data check information is cyclic redundancy check (CRC) information.

3. The wireless transmission method according to claim 2 , wherein dividing the data to be transmitted into a plurality of data groups, wherein each data group is filled into a plurality of data packets in units of bytes, and wherein 8 bits of each byte of the data group being filled into eight different data packets, respectively, comprises:
dividing the data to be transmitted into the plurality of data groups; calculating the data check information of each data group, and adding the data check information to the data group; and filling the data group with the added data check information into the plurality of data packets in units of bytes, wherein 8 bits of each byte of the data group with the added data check information are filled into the eight different data packets, respectively.

4. The wireless transmission method according to claim 1 , wherein each synchronization packet comprises bits that are divided into a synchronization flag region and a synchronization data region; the synchronization flag region has a length of 2 bits; and the synchronization data region has a length equal to the bit length of the synchronization packet minus the length of the synchronization flag region.

5. The wireless transmission method according to claim 4 , wherein values of the synchronization data regions of the synchronization packets in a same transmission sequence are fixed or changing in a regular pattern; the synchronization packets indicate that one of the plurality of transmission sequences with the synchronization packets is the first transmission sequence.

6. The wireless transmission method according to claim 1 , wherein each sequence number packet comprises bits that are divided into a sequence number flag region and a sequence number data region; the sequence number flag region has a length of 2 bits; the sequence number data region has a length equal to the bit length of the sequence number packet minus the length of the sequence number flag region; and
the sequence number data region has a value indicating a position of a subsequent transmission sequence with the sequence number packet in all subsequent transmission sequences.

7. The wireless transmission method according to claim 1 , wherein each data packet comprises bits that are divided into a flag region, a sequence number region, and a data region; the flag region has a length of 2 bits; the sequence number region has a length of at least 3 bits; the data region has a length equal to the bit length of the data packet minus the length of the flag region and the length of the sequence number region; and
the sequence number region has a value indicating the position of the data packet with the sequence number region in all data packets included in the plurality of transmission sequences.

8. The wireless transmission method according to claim 1 , wherein the information to be transmitted is Wi-Fi configuration information, wherein the Wi-Fi configuration information comprises an SSID, an access password, and an IP address.

9. The wireless transmission method according to claim 1 , further comprising encrypting the data to be transmitted before dividing the data to be transmitted into a plurality of data groups.

10. A wireless transmission apparatus, comprising a processor and a memory configured to store a computer program, wherein the computer program, when executed by the processor, cause the processor to perform a wireless information transmission method comprising:
obtaining data to be transmitted, wherein the data to be transmitted is carried in packet length information of a plurality of wireless frames, wherein the packet length information of each wireless frame corresponds to a synchronization packet, a sequence number packet, or a data packet, and the data to be transmitted are carried in data packets only;
dividing the data to be transmitted into a plurality of data groups, wherein each data group is filled into a plurality of data packets in units of bytes, and wherein 8 bits of each byte of the data group are filled into eight different data packets, respectively;
adding at least one synchronization packet or at least one sequence number packet before a plurality of data packets corresponding to each data group to form a plurality of transmission sequences comprising a first transmission sequence and one or more subsequent transmission sequences, wherein the first transmission sequence comprises synchronization packet information and the one or more subsequent transmission sequences comprise sequence number packet information;
generating packet length information of each wireless frame based on contents of the synchronization packet, the sequence number packet, or the data packets in the plurality of transmission sequences, and then generating the wireless frame; and
transmitting the plurality of wireless frames corresponding to the plurality of transmission sequences by polling, in an order that the first transmission sequence comprising the synchronization packet information is followed by the one or more subsequent transmission sequences comprising the sequence number packet information.

Assignees

• Espressif Sys Shanghai Co Ltd

Inventors

• Chen Wen
• Teo Swee Ann
• Jiang Jiangjian
• Wu Jiangang
• Liu Han

Classifications

• H04W48/10 Primary

  using broadcasted information · CPC title

• H04L1/004

  by using forward error control (H04L1/0618 takes precedence; coding, decoding or code conversion, for error detection or correction H03M13/00) · CPC title

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04L7/048

  using the properties of error detecting or error correcting codes, e.g. parity as synchronisation signal · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title