Sensor node and gateway mutually communicating in wireless sensor network
First Claim
Patent Images
1. A gateway to communicate with sensor nodes, the gateway comprising:
- a processor configured todetermine, with respect to a time slot included in a previous uplink interval, whether data is received from a sensor node corresponding to the time slot;
generate, based on previous schedule information on the previous uplink interval, response data,wherein, upon determining that the data is received, the processor is configured to set a bit corresponding to the sensor node among a set of bits included in the response data to be a first logic value, andwherein, upon determining that the data is not received, the processor is configured to set the bit to be a second logic value; and
generate subsequent schedule information about a subsequent uplink interval, the subsequent schedule information comprising elements in the subsequent uplink interval allocated to the sensor nodes; and
a transmitter configured to transmit the response data and the subsequent schedule information to the sensor nodes,wherein the response data comprises the set of bits, each bit corresponding to a sensor node that transmitted data in the previous uplink interval.
1 Assignment
0 Petitions
Accused Products
Abstract
A gateway and method thereof are provided to communicate with sensor nodes. The gateway includes a generator configured to generate, based on schedule information on a previous uplink interval, response data. The gateway also includes an allocator configured to allocate a subsequent uplink interval to the sensor nodes to generate schedule information on the subsequent uplink interval. The gateway includes a transmitter configured to transmit the response data and the schedule information on the subsequent uplink interval to the sensor nodes.
-
Citations
13 Claims
-
1. A gateway to communicate with sensor nodes, the gateway comprising:
-
a processor configured to determine, with respect to a time slot included in a previous uplink interval, whether data is received from a sensor node corresponding to the time slot; generate, based on previous schedule information on the previous uplink interval, response data, wherein, upon determining that the data is received, the processor is configured to set a bit corresponding to the sensor node among a set of bits included in the response data to be a first logic value, and wherein, upon determining that the data is not received, the processor is configured to set the bit to be a second logic value; and generate subsequent schedule information about a subsequent uplink interval, the subsequent schedule information comprising elements in the subsequent uplink interval allocated to the sensor nodes; and a transmitter configured to transmit the response data and the subsequent schedule information to the sensor nodes, wherein the response data comprises the set of bits, each bit corresponding to a sensor node that transmitted data in the previous uplink interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method of a gateway to communicate with sensor nodes, the method comprising:
-
determining, with respect to a time slot included in a previous uplink interval, whether data is received from a sensor node corresponding to the time slot; generating, based on previous schedule information on the previous uplink interval, response data, wherein, upon determining that the data is received, the processor is configured to set a bit corresponding to the sensor node among a set of bits included in the response data to be a first logic value, and wherein, upon determining that the data is not received, the processor is configured to set the bit to be a second logic value; generating subsequent schedule information about a subsequent uplink interval, the subsequent schedule information comprising elements in the subsequent uplink interval allocated to the sensor nodes; and transmitting the response data and the subsequent schedule information to the sensor nodes, wherein the response data comprises the set of bits, each bit corresponding to a sensor node that transmitted data in the previous uplink interval.
-
Specification