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Scheduling method for machine-to-machine communication

  • US 9,036,532 B2
  • Filed: 01/13/2011
  • Issued: 05/19/2015
  • Est. Priority Date: 10/27/2010
  • Status: Expired due to Fees
First Claim
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1. A method of scheduling M2M (machine-to-machine) communication, the method comprising:

  • receiving, by an access point, an association request message from each of a plurality of devices;

    grouping, by the access point, the plurality of devices into one or more groups;

    transmitting, by the access point to the plurality of devices, first control information including information indicating devices belonging to each group and information indicating a time interval assigned to each group;

    transmitting, by the access point to devices belonging to a specific group, second control information including scheduling information of a time interval assigned to the specific group, the scheduling information indicating an uplink or downlink transmission time for each device belonging to the specific group within the time interval assigned to the specific group; and

    communicating, by the access point with the devices belonging to the specific group, at the time interval assigned to the specific group using the transmitted scheduling information,wherein devices belonging to a same group have a same transmission period, a same reception period, and a same quality of service (QoS) requirement,wherein the first control information is periodically transmitted to the plurality of devices in all time intervals, andwherein the second control information is transmitted to the devices belonging to the specific group only at a start time of the time interval assigned to the specific group.

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