Data transmission method, apparatus, and system

Patent metadata

Field	Value
Publication number	US-12418915-B2
Application number	US-202318509677-A
Country	US
Kind code	B2
Filing date	Nov 15, 2023
Priority date	Mar 14, 2018
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

A data transmission method includes: generating a first data packet, where a signaling field in the first data packet includes bandwidth information and space-time stream information, the bandwidth information is used to indicate first bandwidth, and the space-time stream information is used to indicate k first space-time stream quantities corresponding to k receive ends, where k≥1; and sending the first data packet to the k receive ends, where a maximum value of the first bandwidth is greater than 160 MHz, and/or the k first space-time stream quantities meet a preset condition, where the preset condition includes: when k=1, a maximum value of the first space-time stream quantity indicated by the space-time stream information is greater than 8, and when k>1, a maximum value of a sum of the k first space-time stream quantities is greater than 8.

First claim

The invention claimed is:

1. A data transmission method, wherein the method is used on a transmit end and comprises:
generating a first data packet, wherein a signaling field in the first data packet comprises bandwidth information and space-time stream information, the bandwidth information is used to indicate first bandwidth, and the space-time stream information is used to indicate k first space-time stream quantities corresponding to k receive ends, wherein k≥1; and
sending the first data packet to the k receive ends, wherein
the k first space-time stream quantities meet a preset condition, wherein the preset condition comprises: when k=1, a maximum value of the first space-time stream quantity indicated by the space-time stream information is greater than 8, or when k>1, a maximum value of a sum of the k first space-time stream quantities is greater than 8;
wherein the first data packet carries first to-be-transmitted data, the first bandwidth is a bandwidth of a target transmission resource used to transmit the first data packet, and a first space-time stream quantity corresponding to one receive end of the k receive ends is a quantity of space-time streams used to send the first data packet to the receive end; and
wherein the signaling field further comprises third allocation information of the target transmission resource, the third allocation information indicates at least one third transmission resource obtained by dividing the target transmission resource and a physical layer service data unit (PSDU) transmitted on each third transmission resource, and each third transmission resource is an integer multiple of an 80 MHz band.

2. The method according to claim 1 , wherein the target transmission resource comprises m first transmission resources successively arranged in a frequency domain, and n second transmission resources successively arranged in the frequency domain, wherein the second transmission resources comprise a 26-subcarrier resource unit (RU) located at a center in the frequency domain in an 80 MHz band, wherein m≥1, and n≥1;
the signaling field further comprises indication information, and the indication information comprises first allocation information of each first transmission resource in the target transmission resource and second allocation information of each second transmission resource in the target transmission resource; and
the first allocation information of each first transmission resource indicates at least one first RU obtained by dividing the first transmission resource, and a receive end to which each of the at least one first RU is allocated; the second allocation information of each second transmission resource indicates whether the second transmission resource is allocated to one of the k receive ends, and/or which receive end to which the second transmission resource is allocated.

3. The method according to claim 2 , wherein
the indication information is divided into a plurality of types of sub-information, and in a process of transmitting the first data packet, the plurality of types of sub-information are transmitted on different channels.

4. The method according to claim 2 , wherein the first bandwidth is 320 MHz, the target transmission resource comprises sixteen first transmission resources and four second transmission resources, and the sixteen first transmission resources form two sets, wherein
the two sets comprise a first set comprising a first transmission resource whose ranking is an odd number in the sixteen first transmission resources, and a second set comprising a first transmission resource whose ranking is an even number in the sixteen first transmission resources, wherein the first set corresponds to a second transmission resource whose ranking is an odd number in the four second transmission resources, and the second set corresponds to a second transmission resource whose ranking is an even number in the four second transmission resources; and
the indication information comprises two types of sub-information, the two types of sub-information are in a one-to-one correspondence with the two sets, and each type of sub-information comprises first allocation information of each first transmission resource in a set corresponding to the type of sub-information and second allocation information of each second transmission resource corresponding to the set corresponding to the type of sub-information.

5. The method according to claim 3 , wherein the first bandwidth is 320 MHz, the target transmission resource comprises sixteen first transmission resources and four second transmission resources, and the sixteen first transmission resources form four sets, wherein
the four sets comprise a first set comprising a first transmission resource whose ranking is 1+4i, a second set comprising a first transmission resource whose ranking is 2+4i in the sixteen first transmission resources, a third set comprising a first transmission resource whose ranking is 3+4i in the sixteen first transmission resources, and a fourth set comprising a first transmission resource whose ranking is 4+4i in the sixteen first transmission resources, wherein i≥0;
the indication information comprises four types of sub-information, the four types of sub-information are in a one-to-one correspondence with the four sets, the four sets are in a one-to-one correspondence with the four second transmission resources; and
each type of sub-information comprises first allocation information of each first transmission resource in a set corresponding to the type of sub-information and second allocation information of each second transmission resource corresponding to the set corresponding to the type of sub-information.

6. The method according to claim 3 , wherein the first bandwidth is 320 MHZ, the target transmission resource comprises sixteen first transmission resources and four second transmission resources, and the sixteen first transmission resources form eight sets, wherein
the eight sets comprise a first set comprising a first transmission resource whose ranking is 1+8i in the sixteen first transmission resources, a second set comprising a first transmission resource whose ranking is 2+8i in the sixteen first transmission resources, a third set comprising a first transmission resource whose ranking is 3+8i in the sixteen first transmission resources, a fourth set comprising a first transmission resource whose ranking is 4+8i in the sixteen first transmission resources, a fifth set comprising a first transmission resource whose ranking is 5+8i in the sixteen first transmission resources, a sixth set comprising a first transmission resource whose ranking is 6+8i in the sixteen first transmission resources, a seventh set comprising a first transmission resource whose ranking is 7+8i in the sixteen first transmission resources, and an eighth set comprising a first transmission resource whose ranking is 8+8i in the sixteen first transmission resources, wherein i≥0; and
the indication information comprises eight types of sub-information, the eight types of sub-information are in a one-to-one correspondence with the eight sets, the eight sets are classified into four groups of sets, each group of sets comprises two sets, the four groups of sets are in a one-to-one correspondence with the four second transmission resources, and each type of sub-information comprises first allocation information of each first transmission resource in a set corresponding to the type of sub-information and second allocation information of each second transmission resource corresponding to a group of sets to which the set corresponding to the type of sub-information belongs.

7. The method according to claim 2 , wherein the first bandwidth is 240 MHz, the target transmission resource compr

Assignees

• Huawei Tech Co Ltd

Inventors

• Yu Jian
• Gan Ming
• Yan Min

Classifications

• H04L5/0053 Primary

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L1/0023

  characterised by the signalling · CPC title

• H04L5/0092

  Indication of how the channel is divided · CPC title

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title