Systems and methods for access point triggered transmissions after traffic indication map paging
First Claim
1. An apparatus for wireless communication, the apparatus comprising:
- a transmitter configured to transmit a first message over a communication medium to a plurality of nodes, wherein the first message indicates a subset of the plurality of nodes for which data is available for transmission, the first message further indicating a time at which data will be transmitted to nodes of the subset of the plurality of nodes and indicating a first time period in which the communication medium is reserved for transmission to the subset of the plurality of nodes; and
a controller configured to initiate a process for transmitting the data available to the subset of the plurality of nodes after the first message is transmitted, wherein the process comprises;
transmitting a first control message to a first node of the subset of the plurality of nodes;
transmitting data for the first node to the first node if a second control message is received from the first node within a first duration after the first control message is sent to the first node; and
transmitting the first control message to a second node of the subset if the second control message is not received within the first duration.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems, methods, and devices for reducing collisions in a wireless communications network are described herein. In one aspect an apparatus for wireless communication is provided. The apparatus includes a transmitter configured to transmit a first message over a communication medium to a plurality of nodes configured to be selectively at least partially powered down during time periods in which the first message is not expected to be transmitted. The first message indicates a subset of the plurality of nodes for which data is available for transmission. The apparatus further includes a controller configured to initiate a process for transmitting the data available to the subset of the plurality of nodes after the first message is transmitted.
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Citations
25 Claims
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1. An apparatus for wireless communication, the apparatus comprising:
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a transmitter configured to transmit a first message over a communication medium to a plurality of nodes, wherein the first message indicates a subset of the plurality of nodes for which data is available for transmission, the first message further indicating a time at which data will be transmitted to nodes of the subset of the plurality of nodes and indicating a first time period in which the communication medium is reserved for transmission to the subset of the plurality of nodes; and a controller configured to initiate a process for transmitting the data available to the subset of the plurality of nodes after the first message is transmitted, wherein the process comprises; transmitting a first control message to a first node of the subset of the plurality of nodes; transmitting data for the first node to the first node if a second control message is received from the first node within a first duration after the first control message is sent to the first node; and transmitting the first control message to a second node of the subset if the second control message is not received within the first duration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for wireless communication, the method comprising:
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transmitting a first message over a communication medium to a plurality of nodes, wherein the first message indicates a subset of the plurality of nodes for which data is available for transmission, the first message further indicating a time at which data will be transmitted to nodes of the subset of the plurality of nodes and indicating a first time period in which the communication medium is reserved for transmission to the subset of the plurality of nodes; and initiating a process for transmitting the data available to the subset of the plurality of nodes after the first message is transmitted, wherein the process comprises; transmitting a first control message to a first node of the subset of the plurality of nodes; transmitting data for the first node to the first node if a second control message is received from the first node within a first duration after the first control message is sent to the first node; and transmitting the first control message to a second node of the subset if the second control message is not received within the first duration.
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21. An apparatus for wireless communication, the apparatus comprising:
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means for transmitting a first message over a communication medium to a plurality of nodes, wherein the first message indicates a subset of the plurality of nodes for which data is available for transmission, the first message further indicating a time at which data will be transmitted to nodes of the subset of the plurality of nodes and indicating a first time period in which the communication medium is reserved for transmission to the subset of the plurality of nodes; and means for initiating a process for transmitting the data available to the subset of the plurality of nodes after the first message is transmitted, wherein the process comprises; means for transmitting a first control message to a first node of the subset of the plurality of nodes; means for transmitting data for the first node to the first node if a second control message is received from the first node within a first duration after the first control message is sent to the first node; and means for transmitting the first control message to a second node of the subset if the second control message is not received within the first duration.
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22. A computer program product, comprising:
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a non-transitory computer readable medium comprising; code for transmitting a first message over a communication medium to a plurality of nodes, wherein the first message indicates a subset of the plurality of nodes for which data is available for transmission, the first message further indicating a time at which data will be transmitted to nodes of the subset of the plurality of nodes and indicating a first time period in which the communication medium is reserved for transmission to the subset of the plurality of nodes; and code for initiating a process for transmitting the data available to the subset of the plurality of nodes after the first message is transmitted, wherein the code for initiating the process comprises; code for transmitting a first control message to a first node of the subset of the plurality of nodes; code for transmitting data for the first node to the first node if a second control message is received from the first node within a first duration after the first control message is sent to the first node; and code for transmitting the first control message to a second node of the subset if the second control message is not received within the first duration.
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23. A method for wireless communication, the method comprising:
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receiving, via a wireless device, a first message over a communication medium, the first message being transmitted to a plurality of nodes, wherein the first message indicates a subset of the plurality of nodes for which data is available for transmission, the first message further indicating a time at which data will be transmitted to nodes of the subset of the plurality of nodes and indicating a first time period in which the communication medium is reserved for transmission to the subset of the plurality of nodes; and receiving data according to a process for transmitting the data available to the subset of the plurality of nodes after the first message is transmitted, wherein the process for transmitting further comprises; transmitting a first control message to a first node of the subset of the plurality of nodes; transmitting data for the first node to the first node if a second control message is received from the first node within a first duration after the first control message is sent to the first node; and transmitting the first control message to a second node of the subset if the second control message is not received within the first duration.
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24. An apparatus for wireless communication, the apparatus comprising:
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means for receiving a first message over a communication medium, the first message being transmitted to a plurality of nodes, wherein the first message indicates a subset of the plurality of nodes for which data is available for transmission, the first message further indicating a time at which data will be transmitted to nodes of the subset of the plurality of nodes and indicating a first time period in which the communication medium is reserved for transmission to the subset of the plurality of nodes; and means for receiving data according to a process for transmitting the data available to the subset of the plurality of nodes after the first message is transmitted, wherein the process for transmitting further comprises; means transmitting a first control message to a first node of the subset of the plurality of nodes transmitting data for the first node to the first node if a second control message is received from the first node within a first duration after the first control message is sent to the first node; and transmitting the first control message to a second node of the subset if the second control message is not received within the first duration.
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25. A computer program product, comprising:
a non-transitory computer readable medium comprising; code for receiving, via a wireless device, a first message over a communication medium, the first message being transmitted to a plurality of nodes, wherein the first message indicates a subset of the plurality of nodes for which data is available for transmission, the first message further indicating a time at which data will be transmitted to nodes of the subset of the plurality of nodes and indicating a first time period in which the communication medium is reserved for transmission to the subset of the plurality of nodes; and code for receiving data according to code for a process for transmitting the data available to the subset of the plurality of nodes after the first message is transmitted, wherein the code for the process for transmitting further comprises; code for transmitting a first control message to a first node of the subset of the plurality of nodes transmitting data for the first node to the first node if a second control message is received from the first node within a first duration after the first control message is sent to the first node; and transmitting the first control message to a second node of the subset if the second control message is not received within the first duration.
Specification