SYSTEMS AND METHODS FOR DOWNLINK FREQUENCY DOMAIN MULTIPLEXING TRANSMISSIONS

• US 20160295591A1
• Filed: 06/16/2016
• Published: 10/06/2016
• Est. Priority Date: 05/03/2013
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Sampath, Hemanth, Tian, Bin, Tandra, Rahul, Barriac, Gwendolyn Denise, Zhou, Yan, Vermani, Sameer, Merlin, Simone
• Granted Patent: US 9,839,024 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 16/10 Dynamic resource partitioning
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 74/0816 with collision avoidance
• CPC Class Codes: H04W 74/085 collision avoidance
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Systems, methods, and devices for transmitting data are described herein. In some aspects, a method comprises generating a first message. The first message may comprise an allocation of a first station to a first frequency channel and a second station to a second frequency channel. The method further comprises transmitting the first message over the first frequency channel and the second frequency channel. The method further comprises transmitting, after transmission of the first message, a second message to the first station using the first frequency channel. The method further comprises transmitting, after transmission of the first message, a third message to the second station using the second frequency channel.

Claims

1. A method for transmitting data, comprising:

transmitting a request to send message to a first station and a second station;

receiving at least one clear to send message from at least one of the first station or the second station;

transmitting, in response to reception of a clear to send message from the first station over a primary frequency channel, a first data packet to the first station over the primary frequency channel; and

transmitting, in response to reception of a clear to send message from the second station over a secondary frequency channel, a second data packet to the second station over the secondary frequency channel.

2. The method of claim 1, transmitting a request to send message comprising transmitting the request to send message to the first station over the primary frequency channel and to the second station over the secondary frequency channel.

3. The method of claim 1, transmitting a request to send message comprising transmitting the request to send message to the first station and the second station over the primary frequency channel.

4. The method of claim 3, transmitting a request to send message comprising transmitting a first instruction specifying the first station to transmit a clear to send message over the primary frequency channel and a second instruction specifying the second station to transmit a clear to send message over the secondary frequency channel.

5. The method of claim 1, the first station and the second station may each transmit a clear to send message at a same time.

6. The method of claim 1, transmitting a request to send message comprising transmitting a first time allocated for a response by the first station and a second time allocated for a response by the second station.

7. The method of claim 6, a clear to send message from the first station being received according to the first time and a clear to send message from the second station is received according to the second time.

8. An apparatus for transmitting data, comprising:

means for transmitting a request to send message to a first station and a second station;

means for receiving at least one clear to send message from at least one of the first station or the second station;

means for transmitting, in response to reception of a clear to send message from the first station over a primary frequency channel, a first data packet to the first station over the primary frequency channel; and

means for transmitting, in response to reception of a clear to send message from the second station over a secondary frequency channel, a second data packet to the second station over the secondary frequency channel.

9. The apparatus of claim 8, means for transmitting a request to send message comprising means for transmitting the request to send message to the first station over the primary frequency channel and to the second station over the secondary frequency channel.

10. The apparatus of claim 8, means for transmitting a request to send message comprising means for transmitting the request to send message to the first station and the second station over the primary frequency channel.

11. The apparatus of claim 10, means for transmitting a request to send message comprising means for transmitting a first instruction specifying the first station to transmit a clear to send message over the primary frequency channel and a second instruction specifying the second station to transmit a clear to send message over the secondary frequency channel.

12. The apparatus of claim 8, the means for transmitting the request to send message, the means for transmitting the first data packet, and the means for transmitting the second data packet comprising a transmitter, and the means for receiving comprising a receiver.

13. A non-transitory computer-readable medium comprising code that, when executed, causes an apparatus to:

transmit a request to send message to a first station and a second station;

receive at least one clear to send message from at least one of the first station or the second station;

transmit, in response to reception of a clear to send message from the first station over a primary frequency channel, a first data packet to the first station over the primary frequency channel; and

transmit, in response to reception of a clear to send message from the second station over a secondary frequency channel, a second data packet to the second station over the secondary frequency channel.

14. The medium of claim 13, further comprising code that, when executed, causes an apparatus to transmit the request to send message to the first station over the primary frequency channel and to the second station over the secondary frequency channel.

15. The medium of claim 13, further comprising code that, when executed, causes an apparatus to transmit the request to send message to the first station and the second station over the primary frequency channel.

16. The medium of claim 15, further comprising code that, when executed, causes an apparatus to transmit a first instruction specifying the first station to transmit a clear to send message over the primary frequency channel and a second instruction specifying the second station to transmit a clear to send message over the secondary frequency channel.

17. An apparatus for transmitting data, comprising:

a transmitter configured to transmit a request to send message to a first station and a second station; and

a receiver configured to receive at least one clear to send message from at least one of the first station or the second station, the transmitter further configured to transmit, in response to reception of a clear to send message from the first station over a primary frequency channel, a first data packet to the first station over the primary frequency channel, and the transmitter further configured to transmit, in response to reception of a clear to send message from the second station over a secondary frequency channel, a second data packet to the second station over the secondary frequency channel.

18. The apparatus of claim 17, the transmitter further configured to transmit the request to send message to the first station over the primary frequency channel and to the second station over the secondary frequency channel.

19. The apparatus of claim 17, the transmitter further configured to transmit the request to send message to the first station and the second station over the primary frequency channel.

20. The apparatus of claim 19, the transmitter further configured to transmit a first instruction specifying the first station to transmit a clear to send message over the primary frequency channel and a second instruction specifying the second station to transmit a clear to send message over the secondary frequency channel.

21. The apparatus of claim 17, the first station and the second station may each transmit a clear to send message at a same time.

22. The apparatus of claim 17, the transmitter further configured to transmit a first time allocated for a response by the first station and a second time allocated for a response by the second station.

23. The apparatus of claim 22, a clear to send message from the first station being received according to the first time and a clear to send message from the second station is received according to the second time.