METHODS AND SYSTEMS FOR SCHEDULING AMONG NODES FOR A DATA SLOT IN WIRELESS COMMUNICATION NETWORKS
First Claim
1. A method of scheduling among a plurality of nodes for a slot, the plurality of nodes being connected through a wireless network and including an access router and one or more access terminals, the method comprising:
- performing a first sequence of steps followed by a second sequence of steps, each sequence including a transmit (Tx) step during which one or more of the nodes send a signal containing a request to transmit (REQ), followed by a receive (Rx) step during which another one or more of the nodes receive the request signal and respond by sending a confirmation signal indicating an acceptance or a declination of the REQ signal;
wherein the REQ signal includes a unicast portion and a broadcast portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of scheduling among a plurality of nodes may include performing a first sequence of steps followed by a second sequence of steps, each sequence including a Tx step followed by a Rx step. During the Tx step, a node may send a REQ signal containing a request to transmit. During the Rx step, another node may receive the request signal, and respond by sending a confirmation signal indicating an acceptation or a declination of the REQ signal. The REQ signal includes a unicast portion and a broadcast portion. In an uplink mode of the slot, the responding nodes may use the unicast portion of the REQ signal to send supplemental information, in addition to the indication of the acceptation or the declination of the REQ signal.
31 Citations
24 Claims
-
1. A method of scheduling among a plurality of nodes for a slot, the plurality of nodes being connected through a wireless network and including an access router and one or more access terminals, the method comprising:
-
performing a first sequence of steps followed by a second sequence of steps, each sequence including a transmit (Tx) step during which one or more of the nodes send a signal containing a request to transmit (REQ), followed by a receive (Rx) step during which another one or more of the nodes receive the request signal and respond by sending a confirmation signal indicating an acceptance or a declination of the REQ signal; wherein the REQ signal includes a unicast portion and a broadcast portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A system for scheduling among a plurality of nodes for a slot, the plurality of nodes being connected through a wireless network and including an access router and one or more access terminals, the system comprising:
- a processing system configured to perform a first sequence of steps followed by a second sequence of steps, each sequence including a Tx step followed by a Rx step;
wherein during the Tx step the processing system is configured to send a REQ signal containing a request to transmit from one or more of the nodes to the remaining nodes; wherein during the Rx step the processing system is configured to send from the remaining nodes a confirmation signal indicating an accept or a decline of the REQ signal; and wherein the REQ signal includes a unicast portion and a broadcast portion. - View Dependent Claims (13, 14, 15, 16)
- a processing system configured to perform a first sequence of steps followed by a second sequence of steps, each sequence including a Tx step followed by a Rx step;
-
17. A communication system, comprising:
-
a base station; a plurality of access terminals connectable to the access router through a wireless network; and a processing system configured to perform, during a pre-preamble stage of a slot, a first sequence of steps followed by a second sequence of steps, each sequence including a Tx step followed by a Rx step; wherein during the Tx step the processing system is configured to send a REQ signal containing a request to transmit, the REQ signal including a unicast portion and a broadcast portion; wherein during the Rx step the processing system is configured to receive the REQ signal send a confirmation signal indicating an accept or a decline of the REQ signal; and wherein during an uplink mode of the slot the processing system is configured to use the unicast portion of the REQ signal to send supplemental information in addition to the indication of the accept or the decline of the REQ signal.
-
-
18. An access router connectable to a plurality of access terminals through a wireless network, the access router comprising:
-
a processing system configured to perform, during a pre-preamble stage of a slot, a first sequence of steps followed by a second sequence of steps, each sequence including a Tx step followed by a Rx step; wherein during the Tx step the processing system is configured to send a REQ signal containing a request to transmit, the REQ signal including a unicast portion and a broadcast portion; wherein during the Rx step the processing system is configured to receive the REQ signal send a confirmation signal indicating an accept or a decline of the REQ signal; and wherein during an uplink mode of the slot the processing system is configured to use the unicast portion of the REQ signal to send supplemental information in addition to the indication of the accept or the decline of the REQ signal.
-
-
19. An apparatus for scheduling among a plurality of nodes for a slot, the apparatus comprising:
-
means for performing a first sequence of steps followed by a second sequence of steps, each sequence including a Tx step and a Rx step, including means for sending from one or more of the nodes during the Tx step a REQ signal containing a request to transmit, and means for responding to the REQ signal during the Rx step by sending a confirmation signal indicating an accept or a decline of the REQ signal; wherein the REQ signal includes a unicast portion and a broadcast portion. - View Dependent Claims (20, 21)
-
-
22. A computer-usable medium having stored therein computer-usable instructions for a processor, wherein said instructions when executed by said processor cause said processor to:
-
perform, during a pre-preamble stage of a slot, a first sequence of steps followed by a second sequence of steps; wherein each sequence including a Tx step during which a request REQ signal containing a request to transmit is sent, followed by a receive Rx step during which a confirmation signal is sent indicating an accept or a decline of the REQ signal; and wherein the REQ signal includes a unicast portion and a broadcast portion. - View Dependent Claims (23, 24)
-
Specification