Patent application EP18176364A (EP), filed 2018-06-06
Publication number: EP3413636A1
Title: GROUP WAKE-UP AND KEEP-ALIVE INDICATION
Abstract: An interface circuit in an electronic device (such as an access point) may provide a group wake-up packet to a group of recipient electronic devices in a set of recipient electronic devices. During operation, the interface circuit may select the group in the set of recipient electronic devices, where the group includes at least one of the recipient electronic devices. Then, the interface circuit may provide the group wake-up packet for the recipient electronic devices in the group with information that specifies that a subset of the recipient electronic devices in the group transition from a low-power mode. For example, the information may include a bitmap that specifies the subset and an identifier of the group. Note that the electronic device may dynamically define the group. Alternatively, the recipient electronic devices in the group may be static.
IPC codes: H04W  52/    02            A I
Claims: number: 1
text: A recipient electronic device, comprising:
number: 2
text: The recipient electronic device of claim 1, wherein the electronic device comprises an access point.
number: 3
text: The recipient electronic device of claim 1, wherein the information comprises a bitmap that specifies the subset.
number: 4
text: The recipient electronic device of claim 1, wherein the information comprises an identifier of the group.
number: 5
text: The recipient electronic device of claim 4, wherein the group identifier is based at least in part on a portion of an association identifier of the recipient electronic device.
number: 6
text: The recipient electronic device of claim 1, wherein the wake-up radio is further configured to take no action when the information does not specify the recipient electronic device.
number: 7
text: The recipient electronic device of claim 1, wherein the group wake-up packet comprises a Low Power Wake Up Radio (LP-WUR) packet.
number: 8
text: The recipient electronic device of claim 1, wherein the main radio is configured to provide, to the node, a request for the electronic device with group requirements of the recipient electronic device.
number: 9
text: The recipient electronic device of claim 8, wherein the group requirements comprise one or more of: a wake-up interval based at least in part on a duty cycle of the wake-up radio; or a keep-alive interval that maintains a connection with the electronic device.
number: 10
text: The recipient electronic device of claim 8, wherein the main radio is further configured to receive, from the node, a response to the request, which is associated with the electronic device.
number: 11
text: The recipient electronic device of claim 10, wherein the response specifies an identifier of the group.
number: 12
text: The recipient electronic device of claim 11, wherein, after transitioning to the higher-power mode, the main radio is configured to provide, to the node, an acknowledgment for the electronic device to the group wake-up packet.
number: 13
text: The recipient electronic device of claim 11, wherein, after transitioning to the higher-power mode, the main radio is configured to:
number: 14
text: A method for receiving a group wake-up packet by a recipient electronic device, comprising::
number: 15
text: A non-transitory computer-readable storage medium for use in conjunction with a recipient electronic device, the computer-readable storage medium storing program instructions that, when executed by the recipient electronic device, cause the recipient electronic device to receive a group wake-up packet by carrying out one or more operations in accordance with the method of claim 14.
Office action: search_report, dated 2018-12-12
Rejection reasons: novelty_epc_54
Prior art cited: ref_id: US2014120962A1
ref_type: patent
severity: background
ref_id: WO2018062905A1
ref_type: patent
severity: background
ref_id: - JEONGKI KIM (LG ELECTRONICS): "WUR MAC issues follow-up", vol. 802.11ba, no. 1, 11 May 2017 (2017-05-11), pages 1 - 20, XP068115464, Retrieved from the Internet <URL:https://mentor.ieee.org/802.11/dcn/17/11-17-0381-01-00ba-wur-mac-issues-follow-up.pptx> [retrieved on 20170511]
ref_type: npl
severity: background
ref_id: US2014120962
ref_type: patent
severity: novelty_destroying
ref_id: WO2018062905
ref_type: patent
severity: novelty_destroying
ref_id: - JEONGKI KIM (LG ELECTRONICS), "WUR MAC issues follow-up", vol. 802.11ba, no. 1, (20170511), pages 1 - 20, IEEE DRAFT; 11-17-0381-01-00BA-WUR-MAC-ISSUES-FOLLOW-UP, IEEE-SA MENTOR, PISCATAWAY, NJ USA, URL: https://mentor.ieee.org/802.11/dcn/17/11-17-0381-01-00ba-wur-mac-issues-follow-up.pptx, (20170511), XP068115464 [X] 1-4,7,14,15 * Slides 2, 6, 6-10 * [I] 5,6,8-13
ref_type: npl
severity: novelty_destroying
Final disposition: pending (2018-12-12)