Methods and systems for frequency multiplexed communication in dense wireless environments

• US 10,200,115 B2
• Filed: 11/29/2017
• Issued: 02/05/2019
• Est. Priority Date: 05/03/2013
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Merlin, Simone, Barriac, Gwendolyn Denise, Sampath, Hemanth, Vermani, Sameer, Tian, Bin, Zhou, Yan, Tandra, Rahul
• Primary Examiner(s): Morlan, Robert M
• Application Number:
  US15/826,292
• Publication Number:
  US 20180083696A1
• Time in Patent Office: 433 Days
• Field of Search: None
• CPC Class Codes: H04B 7/26 at least one of which is mobile
• CPC Class Codes: H04B 7/2621 using frequency division multiple access [FDMA] H04B7/2615 takes precedence
• CPC Class Codes: H04J 1/02 Details
• CPC Class Codes: H04J 1/14 Arrangements providing for calling or supervisory signals
• CPC Class Codes: H04L 1/1685 the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0012 Hopping in multicarrier systems for frequency hopping in spread spectrum systems H04B1/713
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 5/0069 Allocation based on distance or geographical location allocation based on terminal or device properties in general, H04W72/51
• CPC Class Codes: H04L 5/0073 Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 52/0212 managed by the network, e.g. network or access point is master and terminal is slave
• CPC Class Codes: H04W 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: H04W 74/002 : Transmission of channel access control information
• CPC Class Codes: H04W 74/02 : Hybrid access
• CPC Class Codes: H04W 74/0816 : with collision avoidance
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes exchanging, at an access point, at least one frame reserving a wireless medium with at least one of a first and second wireless device. The method further includes receiving a first communication on a first set of wireless frequencies from the first wireless device. The method further includes receiving a second communication, at least partially concurrent with the first communication, on a second set of wireless frequencies from the second wireless device. The method further includes transmitting at least one acknowledgment of the first and second communication. The first set and the second set are mutually exclusive subsets of a set of wireless frequencies available for use by both the first and second wireless device.

Claims

1. A method of high-efficiency wireless frequency division multiplexing, comprising:

receiving, at a first wireless device from an access point, a reference signal for reserving a wireless medium including a set of wireless frequencies available for use by both the first wireless device and a second wireless device, the reference signal including an indication of a power level at which at least one of the first and second wireless devices should transmit communications; and

transmitting, from the first wireless device to the access point, a first communication on a first subset of the set of wireless frequencies, the first communication being transmitted at least partially concurrent with a second communication transmitted on a second subset of the set of wireless frequencies from the second wireless device to the access point, and the first and second subsets of the set of wireless frequencies being mutually exclusive subsets of the set of wireless frequencies.

2. The method of claim 1, further comprising receiving, from the access point on only the first subset of the set of wireless frequencies, an acknowledgment of the first communication, wherein the acknowledgment of the first communication comprises a single broadcast acknowledgment.

3. The method of claim 1, wherein the first wireless device is capable of simultaneously transmitting on both the first subset of the set of wireless frequencies and the second subset of the set of wireless frequencies.

4. The method of claim 1, wherein the reference signal comprises a frame control field, a duration field, a receive address field, a transmit address field, a length field, a station information field, one or more optional padding bits, and a frame check sequence (FCS).

5. The method of claim 1, wherein the reference signal comprises an indication of a deferral time for third party devices.

6. The method of claim 1, wherein the reference signal comprises an indication of devices that are eligible to transmit at a particular time.

7. The method of claim 1, wherein the reference signal comprises an assignment of channels to at least one of the first wireless device and the second wireless device.

8. The method of claim 1, wherein the reference signal comprises an indication of a transmission time of at least one of the first wireless device and the second wireless device.

9. The method of claim 1, wherein the reference signal comprises a clear-to-send frame (CTS) and an extended payload comprising one or more payload elements.

10. The method of claim 1, further comprising scheduling, in connection with the access point, a time at which to transmit communications, from the first wireless device, to the access point.

11. An apparatus configured to perform high-efficiency wireless frequency division multiplexing, comprising:

a processor;

a receiver, in connection with the processor and configured to receive, at the apparatus from an access point, a reference signal for reserving a wireless medium including a set of wireless frequencies available for use by both the apparatus and a wireless device, the reference signal including an indication of a power level at which at least one of the apparatus and the wireless device should transmit communications; and

a transmitter, in connection with the processor and configured to, in response to receiving the reference signal, transmit, from the apparatus to the access point, a first communication on a first subset of the set of wireless frequencies, the first communication being transmitted at least partially concurrent with a second communication transmitted on a second subset of the set of wireless frequencies from the wireless device to the access point, and the first and second subsets of the set of wireless frequencies being mutually exclusive subsets of the set of wireless frequencies.

12. The apparatus of claim 11, wherein the receiver is further configured to receive, from the access point on only the first subset of the set of wireless frequencies, an acknowledgment of the first communication, and wherein the acknowledgment of the first communication comprises a single broadcast acknowledgment.

13. The apparatus of claim 11, wherein the apparatus is capable of simultaneously transmitting on both the first subset of the set of wireless frequencies and the second subset of the set of wireless frequencies.

14. The apparatus of claim 11, wherein the reference signal comprises a frame control field, a duration field, a receive address field, a transmit address field, a length field, a station information field, one or more optional padding bits, and a frame check sequence (FCS).

15. The apparatus of claim 11, wherein the reference signal comprises an indication of a deferral time for third party devices.

16. The apparatus of claim 11, wherein the reference signal comprises an indication of devices that are eligible to transmit at a particular time.

17. The apparatus of claim 11, wherein the reference signal comprises an assignment of channels to one or more of the apparatus and the wireless device.

18. The apparatus of claim 11, wherein the reference signal comprises an indication of a transmission time of at least one of the apparatus and the wireless device.

19. The apparatus of claim 11, wherein the reference signal comprises a clear-to-send frame (CTS) and an extended payload comprising one or more payload elements.

20. The apparatus of claim 11, wherein the processor is configured to schedule, in connection with the access point, a time at which to transmit communications, from the apparatus, to the access point.