Devices and methods for asymmetrical multicarrier transmission and reception

• US 9,167,595 B2
• Filed: 03/15/2012
• Issued: 10/20/2015
• Est. Priority Date: 12/12/2008
• Status: Active Grant

• Current Assignee: AT&T Mobility II LLC (AT&T, Inc.)
• Original Assignee: AT&T Mobility II LLC (AT&T, Inc.)
• Inventors: Brisebois, Arthur, Choi-Grogan, Yung S., Frerking, Melvin, Keathley, Thomas, Mansfield, William G., Ohana, Alain, Shively, David
• Primary Examiner(s): JEANGLAUDE, JEAN BRUNER
• Application Number:
  US13/421,734
• Publication Number:
  US 20120188920A1
• Time in Patent Office: 1,314 Days
• Field of Search: 370/342, 455/442, 455/405, 455/436, 455/558
• US Class Current: 1/1
• CPC Class Codes: H04L 5/16 Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
• CPC Class Codes: H04L 67/1038 Load balancing arrangements to avoid a single path through a load balancer
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

Abstract

A duplex frequency is supplemented by providing one or more simplex frequencies and distributing a data load among them. In one aspect, a system can include a server containing a scheduler in communication with a communications device. The server initially communicates with the communications device using a duplex channel, determines when it is no longer optimal to use the single duplex channel, and distributes data among the duplex channel and one or more simplex channels. Before distributing the data, the server sends a schedule to the communications device via the duplex channel, so the communications device can determine which bits of data are coming through which channels at which times. A descheduler within the communications device receives the schedule and alerts the communications device to start receiving data on other simplex channels. The descheduler then puts the bits of data in order as they stream in across the duplex and simplex channels.

Claims

1. A method, comprising:

receiving, by a system comprising a processor, a schedule indicative of a distribution of data packets between an anchor channel, utilized for duplex transmission, and a simplex channel, utilized for simplex transmission;

receiving, by the system, the data packets via the anchor channel and the simplex channel, based on the schedule, wherein the receiving the data packets comprises receiving a first portion of the data packets via the anchor channel and receiving a second portion of the data packets via the simplex channel, and the receiving the data packets is performed via asymmetrical multicarrier communication; and

organizing, by the system, the data packets, wherein the organizing the data packets facilitates communication between a network server and the system.

2. The method of claim 1, wherein the receiving the schedule includes receiving the schedule prior to the receiving the first portion of the data packets and the receiving the second portion of the data packets.

3. The method of claim 1, further comprising:

identifying, by the system, a channel on which a portion of the data packets is to be received at a specified time, based on the schedule.

4. The method of claim 1, wherein the receiving the schedule includes receiving timing information associated with receipt of the data packets.

5. The method of claim 1, wherein the receiving the schedule includes receiving frequency information associated with receipt of the data packets.

6. The method of claim 1, further comprising:

transmitting, by the system, a request for the data packets via the anchor channel.

7. The method of claim 1, wherein the distribution of the data packets is a first distribution of first data packets, and the method further comprises:

transmitting, by the system, feedback information, associated with the data packets, that is utilized to balance a second distribution of second data packets between the anchor channel and the simplex channel.

8. The method of claim 1, further comprising:

selecting, by the system, frequencies associated with the anchor channel based at least in part on a distance between the system and an access point device.

9. A system, comprising:

a memory that stores executable instructions; and

a processor, coupled to the memory, that facilitates execution of the executable instructions to perform operations, comprising;

obtaining a schedule indicative of a distribution of data packets between an anchor channel, utilized for duplex transmission, and a simplex channel, utilized for simplex transmission, and

receiving, based on asymmetrical multicarrier communication, the data packets via the anchor channel and the simplex channel based on the schedule; and

aggregating the data packets, based on the schedule, to facilitate communication between a network server and the system.

10. The system of claim 9, wherein the operations further comprise determining a channel on which a portion of the data packets are to be received during a specified time range, based on the schedule.

11. The system of claim 10, wherein the operations further comprise receiving the portion of the data packets on the channel during the specified time range.

12. The system of claim 9, wherein the operations further comprise receiving the schedule via the anchor channel.

13. The system of claim 9, wherein the distribution of the data packets is a first distribution of first data packets, and the operations further comprise generating feedback information associated with receipt of the first data packets, and wherein the feedback information is utilized to balance a second distribution of second data packets between the anchor channel and the simplex channel.

14. A non-transitory computer-readable medium comprising executable instructions that, in response to execution, cause a system, comprising a processor to perform operations, comprising:

receiving a schedule indicative of a distribution of data between an anchor channel, utilized for duplex transmission, and a simplex channel, utilized for simplex transmission;

receiving the data received via the anchor channel and the simplex channel, based on the schedule, wherein the receiving the data comprises receiving a first portion of the data via the anchor channel and receiving a second portion of the data via the simplex channel, and asymmetrical multicarrier communication is used to receive the data; and

aggregating the data, based on the schedule, to facilitate communication between a network server and the system.

15. The non-transitory computer-readable medium of claim 14, wherein the operations further comprise:

identifying a channel on which a portion of the data is to be received during a specified time range, based on the schedule.

16. The non-transitory computer-readable medium of claim 15, wherein the operations further comprise:

listening on the channel during the specified time range.

17. The non-transitory computer-readable medium of claim 14, wherein the operations further comprise:

selecting frequencies associated with the anchor channel based in part on a distance between the system and an access point.

18. The non-transitory computer-readable medium of claim 14, wherein the operations further comprise:

selecting frequencies associated with the simplex channel based in part on a distance between the system and an access point.

19. The non-transitory computer-readable medium of claim 14, wherein the operations further comprise:

transmitting, by the system, a request for the data via the anchor channel.