IP Library › Granted Patent US 12690017
Granted Patent B2
US 12690017 · App. 18/365,618 · Granted Jul 21, 2026

Trigger frame for uplink resource allocation

Inventors: Jeongki Kim (Seoul, KR); Kazi Mohammed Saidul Huq (Herndon, VA); Esmael Hejazi Dinan (McLean, VA)
Assignee: Comcast Cable Communications, LLC
H04W72/04
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Quick Facts
Patent No.
US 12690017
App. No.
18/365,618
Granted
Jul 21, 2026
Kind
B2
Abstract

An access point (AP) may communicate with one or more stations (STAs). The AP may send a trigger frame to one or more STAs for allocating uplink resources for a corresponding STA. The trigger frame may indicate a presence or absence of a subsequent uplink resource allocation. Uplink resource allocations for multiple uplink transmissions of one or more STAs may be determined based on the indication(s) in the trigger frame.

Claims (51)

1 . A method comprising:

sending, by an access point (AP) and to a station (STA), a first frame comprising:

an indication of a first uplink resource allocation for the STA; and

an indication of presence or absence of a second uplink resource allocation for the STA;

receiving, by the AP and from the STA, a second frame via the first uplink resource allocation; and

based on the first frame indicating presence of the second uplink resource allocation, receiving, by the AP and from the STA, a third frame via the second uplink resource allocation.

2 . The method of claim 1 , further comprising:

sending, by the AP and to a second station (STA), the first frame, wherein the first frame further comprises:

an indication of a third uplink resource allocation for the second STA; and

an indication of presence or absence of a fourth uplink resource allocation for the second STA;

receiving, by the AP and from the second STA, a fourth frame via the third uplink resource allocation; and

based on the first frame indicating absence of the fourth uplink resource allocation, receiving, by the AP and from the STA, a fifth frame via at least one of the second uplink resource allocation or the third uplink resource allocation.

3 . The method of claim 1 , wherein the second uplink resource allocation is associated with a same frequency resource as the first uplink resource allocation and a same spatial resource as the first uplink resource allocation.

4 . The method of claim 1 , wherein the first frame is a trigger frame, and wherein the receiving the second frame comprises receiving the second frame based on the first frame, and wherein the receiving the third frame comprises receiving the third frame based on the first frame.

5 . The method of claim 1 , wherein at least one of the second frame or the third frame comprises a trigger-based (TB) physical protocol data unit (PPDU).

6 . The method of claim 1 , wherein the first frame is a trigger frame comprising a user information field, and wherein the user information field comprises the indication of presence or absence of the second uplink resource allocation for the STA.

7 . A method comprising:

sending, by an access point (AP) and to a first station (STA) and a second station (STA), a first frame comprising:

a first indication of a first uplink resource allocation for the first STA;

a second indication of presence or absence of a second uplink resource allocation for the first STA;

a third indication of a third uplink resource allocation for the second STA; and

a fourth indication of presence or absence of a fourth uplink resource allocation for the second STA;

receiving, by the AP and from the first STA, a second frame via the first uplink resource allocation; and

receiving, by the AP and from the second STA, a third frame via the third uplink resource allocation.

8 . The method of claim 7 , further comprising:

receiving, by the AP and from the first STA, a fourth frame via at least one of the second uplink resource allocation or the third uplink resource allocation, based on the fourth indication indicating absence of the fourth uplink resource allocation.

9 . The method of claim 7 , further comprising:

sending, by the AP and based on at least one of the second frame or the third frame, a fifth frame.

10 . The method of claim 7 , wherein the third uplink resource allocation is associated with a same time resource as the first uplink resource allocation, and the fourth uplink resource allocation is associated with a same time resource as the second uplink resource allocation.

11 . The method of claim 7 , wherein the third uplink resource allocation is associated with a different frequency resource or a different spatial resource as the first uplink resource allocation.

12 . The method of claim 7 , wherein the first frame is a trigger frame for triggering one or more trigger-based (TB) physical protocol data units (PPDUs).

13 . The method of claim 7 , wherein the first frame is a trigger frame comprising a first user information field and a second user information field, wherein the first user information field comprises the second indication, and wherein the second user information field comprises the fourth indication.

14 . A method comprising:

receiving, by a station (STA) and from an access point (AP), a first frame comprising:

an indication of a first uplink resource allocation for the STA; and

an indication of presence or absence of a second uplink resource allocation for the STA;

sending, by the STA and to the AP, a second frame via the first uplink resource allocation; and

based on the first frame indicating presence of the second uplink resource allocation, sending, by the STA and to the AP, a third frame via the second uplink resource allocation.

15 . The method of claim 14 , further comprising:

receiving, by a second station (STA) and from the AP, the first frame, wherein the first frame further comprises:

an indication of a third uplink resource allocation for the second STA; and

an indication of presence or absence of a fourth uplink resource allocation for the second STA;

sending, by the second STA and to the AP, a fourth frame via the third uplink resource allocation; and

based on the first frame indicating absence of the fourth uplink resource allocation, sending, by the STA and to the AP, the third frame via at least one of the second uplink resource allocation or the third uplink resource allocation.

16 . The method of claim 14 , further comprising:

receiving, by the STA and based on the second frame, a fifth frame; and

determining whether to send the third frame via the second uplink resource allocation, based on the fifth frame.

17 . The method of claim 14 , wherein the second uplink resource allocation is associated with a same frequency resource as the first uplink resource allocation and a same spatial resource as the first uplink resource allocation.

18 . The method of claim 14 , wherein the first frame is a trigger frame, and wherein the second frame and the third frame are sent based on the first frame.

19 . The method of claim 14 , wherein at least one of the second frame or the third frame comprises a trigger-based (TB) physical protocol data unit (PPDU).

20 . The method of claim 14 , wherein the first frame is a trigger frame comprising a user information field, and wherein the user information field comprises the indication of presence or absence of the second uplink resource allocation for the STA.