US 12,219,485 B2
Wireless communication method and wireless communication terminal using variable-length wake-up frame
Woojin Ahn, Gyeonggi-do (KR); Juhyung Son, Gyeonggi-do (KR); and Jinsam Kwak, Gyeonggi-do (KR)
Assigned to WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-Do (KR)
Filed by WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-do (KR)
Filed on Jul. 7, 2023, as Appl. No. 18/219,617.
Application 18/219,617 is a continuation of application No. 17/871,891, filed on Jul. 22, 2022, granted, now 11,800,451.
Application 17/871,891 is a continuation of application No. 17/040,188, granted, now 11,438,840, issued on Sep. 6, 2022, previously published as PCT/KR2019/003409, filed on Mar. 22, 2019.
Claims priority of application No. 10-2018-0033252 (KR), filed on Mar. 22, 2018; application No. 10-2018-0052187 (KR), filed on May 5, 2018; application No. 10-2018-0053494 (KR), filed on May 10, 2018; application No. 10-2018-0081077 (KR), filed on Jul. 12, 2018; application No. 10-2018-0107278 (KR), filed on Sep. 7, 2018; and application No. 10-2019-0002437 (KR), filed on Jan. 8, 2019.
Prior Publication US 2023/0354194 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 52/00 (2009.01); H04L 69/324 (2022.01); H04W 52/02 (2009.01)
CPC H04W 52/0229 (2013.01) [H04L 69/324 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A wireless communication terminal for wireless communicating, comprising:
a first wireless transceiver transmitting and receiving a signal through a first waveform;
a second wireless receiver receiving a signal through a second waveform different from the first waveform, wherein the second waveform is based on an on-off keying modulation; and
a processor, wherein the processor is configured to:
transmit, through the first wireless transceiver, a capability element which indicates that the wireless communication terminal supports one or more group identifiers allocated to one or more groups including the wireless communication terminal,
receive, from a base wireless communication terminal of a basic service set (BSS) to which the wireless communication terminal belongs, a starting group identifier corresponding to a first bit of a bitmap and the bitmap through the first wireless transceiver, wherein the bitmap indicates the one or more group identifiers together with the starting group identifier,
determine, as a group identifier allocated to the group including the wireless communication terminal, a value obtained by applying a modulo operation that uses a value obtained based on the starting group identifier and the bitmap as a numerator and a maximum number of values that an ID field is able to represent as a denominator,
start receiving a variable length Wake-Up frame through the second wireless receiver, from the base wireless communication terminal,
determine whether or not a Frame Body field of the Wake-Up frame includes an identifier of the wireless communication terminal when the ID field of the Wake-Up frame indicates the group identifier allocated to the group including the wireless communication terminal, and
wake up the first wireless transceiver based on the Wake-Up frame when the Frame Body field of the Wake-Up frame includes the identifier of the wireless communication terminal,
wherein the Frame Body field of the Wake-Up frame does not include an identifier of a wireless communication terminal that is not included in a group identified by the ID field when the Wake-Up frame has a variable length and the ID field of the Wake-Up frame indicates a group identifier identifying a group including one or more wireless communication terminals.