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

User TID feedback information confirmation and processing system and processing method

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

Active Publication Date: 2019-07-23
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
  • User TID feedback information confirmation and processing system and processing method
  • User TID feedback information confirmation and processing system and processing method
  • User TID feedback information confirmation and processing system and processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Embodiment 1: Single user multi-TID adaptive confirmation

[0082] The maximum receiving window of 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, each time t TIDs are received, a total of M PDUs are received The status is fed back, and the sender retransmits according to the received reception status feedback.

[0084] Such as 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; its effective receiving window size is Ni, as shown in the figure As shown in the blue box, you only need to indicate it. In order to efficiently indicate its receiving status, all the PDU receiving ...

Embodiment 2

[0149] Embodiment 2: Multi-user and multi-TID adaptive confirmation

[0150] The confirmation principle and frame format of the multi-user multi-TID and the single-user multi-TID of the present invention are basically the same. The difference between the two frame formats is the Each Receiving Window Info and BA Feedback Information fields. The Each Receiving Window Info of Multi-STA BA is used to indicate the received information of each STA, the multi-TID value of multiple STAs, and the number and quantity of PDUs. 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, AID TIDi Info contains the value of the TID, and supports multiple STAs, 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 of a single user...

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 system and a processing method for confirming and processing feedback information of a user's TID. Background technique [0002] At present, the existing technology commonly used in the industry is as follows: [0003] The next-generation WiFi has a large throughput. 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 of the MPDUs, and send a response frame for each MPDU. Block Ack uses one ACK frame to complete the response to multiple MPDUs to reduce the number of ACK frames in this case. It needs to improve the transmission efficiency of the MAC layer by modifying the ordinary transmission mode of one frame one confirmation to the mode of continuously tr...

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 Applications(China)
IPC IPC(8): H04L1/18H04L5/00
CPCH04L1/1812H04L5/0055
Inventor 吴伟民代静
Owner HUAZHONG UNIV OF SCI & TECH