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US 8,478,198 B2Granted
Interference management messaging involving termination of a request for reduction in interference
AssigneeQUALCOMM Incorporated
InventorRajarshi Gupta
Life of this patent
Estimating the term…
Abstract
A set of nodes may communicate in a manner that is asynchronous with respect to the communication between other sets of nodes. To facilitate reservations of resources by different nodes, a node may transmit a message that requests neighboring nodes to limit their interfering transmissions on a given resource and then transmit another message to inform the neighboring nodes that the node is no longer using the resource. To address problems that may be caused by concurrent asynchronous transmissions by different nodes, a messaging scheme may be used to enable a first node to acquire control information transmitted by asynchronous neighboring nodes while the first node was transmitting, and was thereby unable to receive control messages.
Claims30
A method of wireless communication, comprising:
- transmitting, from a first node, a first interference management message that comprises a request for reduction in interference;
- transmitting, from the first node, a second interference management message that indicates that the request for reduction in interference is terminated;
- receiving, at the first node, data during a first period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message;
- switching, by the first node, to a transmitting mode at defined intervals during the first period of time;
- receiving, at the first node, during a second period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message, a request to transmit an interference management message, wherein the second period of time ends at one of the defined intervals;
- and
- transmitting, from the first node, a third interference management message during another switch, by the first node, to the transmitting mode at the end of the second period of time based on the received request.
4 more elements
An apparatus for wireless communication, comprising:
- a message controller configured to provide:
- a first interference management message that comprises a request for a reduction in interference, and
- a second interference management message that indicates that the request for reduction in interference is terminated;
- a transmitter configured to transmit the first interference management message and the second interference management message;
- a receiver configured to receive data during a first period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message;
- and
- a communication controller configured to switch to a transmitting mode at defined intervals during the first period of time,
- wherein the receiver is further configured to receive, during a second period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message, a request to transmit an interference management message,
- wherein the second period of time ends at one of the defined intervals;
- and
- wherein the transmitter is further configured to transmit a third interference management message during another switch to the transmitting mode at the end of the second period of time based on the received request.
8 more elements
An apparatus for wireless communication, comprising:
- means for providing:
- a first interference management message that comprises a request for reduction in interference, and
- a second interference management message that indicates that the request for reduction in interference is terminated;
- means for transmitting the first interference management message and the second interference management message;
- means for receiving data during a first period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message;
- means for switching to a transmitting mode at defined intervals during the first period of time;
- means for receiving, during a second period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message, a request to transmit an interference management message, wherein the second period of time ends at one of the defined intervals;
- and
- means for transmitting a third interference management message during another switch to the transmitting mode at the end of the second period of time.
6 more elements
A computer-program product for wireless communication, comprising:
- non-transitory computer-readable medium comprising codes executable to:
- transmit, from a first node, a first interference management message that comprises a request for reduction in interference;
- transmit, from the first node, a second interference management message that indicates that the request for reduction in interference is terminated;
- receive, at the first node, data during a first period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message;
- switch, by the first node, to a transmitting mode at defined intervals during the first period of time;
- receive, at the first node, during a second period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message, a request to transmit an interference management message, wherein the second period of time ends at one of the defined intervals;
- and
- transmit, from the first node, a third interference management message during another switch, by the first node, to the transmitting mode at the end of the second period of time based on the received request.
5 more elements
An access point, comprising:
- an antenna;
- a message controller configured to provide:
- a first interference management message that comprises a request for a reduction in interference, and
- a second interference management message that indicates that the request for reduction in interference is terminated;
- a transmitter configured to transmit the first interference management message and the second interference management message via the antenna;
- a receiver configured to receive data during a first period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message;
- and
- a communication controller configured to switch to a transmitting mode at defined intervals during the first period of time,
- wherein the receiver is further configured to receive, during a second period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message, a request to transmit an interference management message,
- wherein the second period of time ends at one of the defined intervals;
- and
- wherein the transmitter is further configured to transmit a third interference management message during another switch to the transmitting mode at the end of the second period of time based on the received request.
9 more elements
An access terminal, comprising:
- a message controller configured to provide:
- a first interference management message that comprises a request for a reduction in interference, and
- a second interference management message that indicates that the request for reduction in interference is terminated;
- a transmitter configured to transmit the first interference management message and the second interference management message;
- a user interface configured to output an indication based on data received after the transmission of the first interference management message and before the transmission of the second interference management message;
- a receiver configured to receive data during a first period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message;
- and
- a communication controller configured to switch to a transmitting mode at defined intervals during the first period of time,
- wherein the receiver is further configured to receive, during a second period of time that follows the transmission of the first interference management message and precedes the transmission of the second interference management message, a request to transmit an interference management message,
- wherein the second period of time ends at one of the defined intervals;
- and
- wherein the transmitter is further configured to transmit a third interference management message during another switch to the transmitting mode at the end of the second period of time based on the received request.
9 more elements
Dependencies are inferred from the claim text.