Multi-packet loss label detection method for expected single time slot

• Main Authors: WANG TAIYUAN, NIU HUACHANG, CHEN HONGLONG, LIN KAI, ZHANG KAI, CHEN CONG, WANG JUN, WANG GANG, DU PEI'EN, GENG DONGPAN, ZHAO CHENBO, LI JIANWEI, YE ZHIGUO, LI SHUWEI
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

A multi-packet lost label detection method for an expected single time slot comprises the following steps: for any group of labels in a system, a reader maps all the labels to an array with the length of fg through a hash function so as to construct an expected frame vector Vg, and then all the labels in the group of labels are inquired through a request command; after all the tags receive the request command, one bit is selected from an expected frame vector Vg through a built-in hash function, indexes of the selected bit in all 1 bits are calculated, and then a tag time slot is selected according to a hash operation result to respond 96-bit information to the reader; and the reader performs OR operation on all label responses received in a label time slot to generate a new composite vector, and then detects a label loss event according to an actual value in the composite vector and a value in an expected frame vector. 一种面向期望单时隙的多分组丢失标签检测方法，所述方法包括：对系统中的任意一组标签，阅读器通过一个哈希函数将所有标签映射到一个fg长度的数组中，以此构建一个期望帧向量Vg，然后通过请