Unlock instant, AI-driven research and patent intelligence for your innovation.

A system and method for confirming and processing feedback information of user's tid

A technology for feedback information and processing methods, applied in the field of information screening and processing, can solve problems such as high overhead, high WiFi throughput, and low confirmation efficiency, and achieve the effect of reducing confirmation bandwidth overhead, ensuring confirmation efficiency, and ensuring maximum maximization.

Active Publication Date: 2020-06-23
HUAZHONG UNIV OF SCI & TECH
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Insufficiency of the existing technology: The throughput of the next-generation WiFi is large, and many frames need to be confirmed at one time, which requires high confirmation efficiency. However, in the existing technical solutions, the confirmation efficiency is low for the feedback problem of multiple TIDs. At the same time, the existing solutions In many cases, the confirmation of multiple TIDs is carried out separately, and then repeated multiple times, so as to realize the confirmation of multiple TIDs. This method requires multiple feedbacks, and in many cases, only a small number of bits carry feedback information among a large number of bits, resulting in The overhead is high, the efficiency is not high, and it is difficult to meet the relevant needs
[0011] (2) In the existing technology, multiple TIDs are confirmed separately, and multiple confirmations are repeated, which is expensive and inefficient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A system and method for confirming and processing feedback information of user's tid
  • A system and method for confirming and processing feedback information of user's tid
  • A system and method for confirming and processing feedback information of user's tid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Embodiment 1: Adaptive acknowledgment of multiple TIDs for a single user

[0082] The maximum receiving window for each TID is K. The sender sends multiple TIDs at the same time. At the receiving end, the received multiple TIDs are confirmed at the same time, such as image 3 shown.

[0083] The effective receiving window length of the i-th TID is Ni (the total number of frames from the next frame waiting to be received to the last correctly received frame), N1+N2+...+Nt=M, a total of M PDUs are received for t TIDs each time The status is fed back, and the sender retransmits according to the received status feedback.

[0084] like Figure 4 As shown, the number of TIDs is t, and the total number of frames sent by the i-th (i=1, 2, ..., t) TID is Mi, as shown in the green box in the figure; the effective receiving window size is Ni, as shown in the figure As shown in the blue box, only need to indicate it. In order to efficiently indicate the receiving status, the re...

Embodiment 2

[0149] Embodiment 2: Adaptive confirmation of multi-user and multi-TID

[0150] The confirmation principle and frame format of multi-user multi-TID and single-user multi-TID in the present invention are basically the same, and the difference between the two frame formats lies in the fields of Each Receiving Window Info and BA Feedback Information. The Each Receiving Window Info of Multi-STABA is used to indicate the received STA information, the multi-TID value of multi-STA, and the PDU number and quantity. Figure 7 It is the frame format of Each Receiving Window Info of Multi-STA BA.

[0151] As far as Each Receiving Window Info is concerned, for Multi-STA BA, the AID TIDi Info contains the value of the TID, and supports multiple STAs at the same time, so it also has AID information. The AID Info field is used to indicate the information of a certain STA, and the following TID Bitmap is used to indicate the TID information sent by the STA. Its definition is the same as that...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of information screening, discloses a user TID feedback information confirmation and processing system and processing method. A plurality of dynamic self-adaptive TID confirmation methods are utilized, only the receiving states of a plurality of PDUs in a splicing window are confirmed, and no extra indication is needed for mistakenly receiving the PDUsafter the splicing window; when a plurality of TIDs are transmitted at the same time, the receiving states of the PDUs in a plurality of receiving window ranges of the plurality of TIDs are spliced together by a receiver to perform joint feedback, a plurality of different feedback types are adaptively selected to perform feedback, and feedback information of the plurality of TIDs and ARQ retransmission information are uniformly processed. According to the invention, the PDU receiving states of multiple TIDs of a single user and multiple TIDs of multiple users are spliced, multiple TIDs can beeffectively confirmed, and the feedback cost is reduced as much as possible on the premise of ensuring the correctness and integrity of the indication information.

Description

technical field [0001] The invention belongs to the technical field of information screening and processing, and in particular relates to a confirmation and processing system and processing method for user TID feedback information. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] The next-generation WiFi has a large throughput. In order to ensure the reliability of data transmission, the 802.11 protocol stipulates that every time a unicast data frame is received, an ACK frame must be responded immediately. After receiving the A-MPDU, the receiving end needs to process each MPDU, and send a response frame for each MPDU. The Block Ack uses one ACK frame to complete the response to multiple MPDUs, so as to reduce the number of ACK frames in this case. It needs to improve the transmission efficiency of the MAC layer by modifying the normal transmission mode of one frame and one confirmation to continuous...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04L5/00
CPCH04L1/1812H04L5/0055
Inventor 吴伟民代静
Owner HUAZHONG UNIV OF SCI & TECH