US 11,751,139 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. 22, 2022, as Appl. No. 17/871,891.
Application 17/871,891 is a continuation of application No. 17/040,188, granted, now 11,438,840, 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 2022/0361104 A1, Nov. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 52/00 (2009.01); H04W 52/02 (2009.01); H04L 69/324 (2022.01)
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:
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, wherein the bitmap indicates one or more group identifiers allocated to one or more groups including the wireless communication terminal together with the starting group identifier through the first wireless transceiver,
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.