# US 2014/0192784 A1 · Systems and for reducing interference in long-range wireless communication

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- Number: US 2014/0192784 A1
- Document ID: US20140192784A1
- Status: Published application
- Kind: A1
- Application number: 13/734,110
- Filed: 2013-01-04
- Published: 2014-07-10
- Earliest claimed: 2013-01-04
- Assignees: QUALCOMM Incorporated
- Applicants: Qualcomm Incorporated
- Inventors: Maarten Menzo Wentink
- Web page: https://patentgrep.com/patent/US20140192784A1

## CPC

- H04W 24/02: Arrangements for optimising operational condition
- H04W 74/0816: with collision avoidance
- H04W 28/26: Resource reservation
- H04W 84/12: WLAN [Wireless Local Area Networks]
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Systems, methods, and devices for communicating a compressed beacon are described herein. In some aspects, a method of receiving a long-range communication in a wireless network is provided. The method includes transmitting, at a first device, a first communication reserving a wireless medium for at least a first time period. The first communication has a first range. The method further includes receiving, at the first device, a second communication during the first time period. The second communication is unidirectional and has a second range longer than the first range.

## Claims

### Claim 1

A method of receiving a long-range communication in a wireless network, the method comprising:
transmitting, at a first device, a first communication reserving a wireless medium for at least a first time period, the first communication having a first range; and
receiving, at the first device, a second, unidirectional communication during the first time period, the second communication having a second range longer than the first range.

### Claim 2 (depends on 1)

The method of claim 1, wherein the first communication, reserving the wireless medium for a first time period, comprises a clear-to-send (CTS) frame.

### Claim 3 (depends on 2)

The method of claim 2, wherein CTS frame is configured to set a network allocation vector (NAV) that starts before a scheduled time of the long-range communication, and ends at a scheduled end time of the long-range communication.

### Claim 4 (depends on 1)

The method of claim 1, further comprising scheduling the second communication.

### Claim 5 (depends on 1)

The method of claim 1, further comprising determining a scheduled start time of the second communication, wherein the first communication reserving the wireless medium is based on the determined start time.

### Claim 6 (depends on 1)

The method of claim 1, further comprising determining a scheduled end time of the second communication, wherein the first communication reserving the wireless medium is based on the determined end time.

### Claim 7 (depends on 1)

The method of claim 1, further comprising delaying an acknowledgment of the second communication.

### Claim 8 (depends on 1)

The method of claim 1, further comprising transmitting a block acknowledgement of the second communication.

### Claim 9 (depends on 1)

The method of claim 1, wherein the second communication comprises a data media access control (MAC) protocol data unit (D-MPDU).

### Claim 10

A wireless device configured to receive a long-range communication in a wireless network, the wireless device comprising:
a transmitter configured to transmit a first communication reserving a wireless medium for at least a first time period, the first communication having a first range; and
a receiver configured to receive a second, unidirectional communication during the first time period, the second communication having a second range longer than the first range.

### Claim 11 (depends on 10)

The wireless device of claim 10, wherein the first communication, reserving the wireless medium for a first time period, comprises a clear-to-send (CTS) frame.

### Claim 12 (depends on 11)

The wireless device of claim 11, wherein CTS frame is configured to set a network allocation vector (NAV) that starts before a scheduled time of the long-range communication, and ends at a scheduled end time of the long-range communication.

### Claim 13 (depends on 10)

The wireless device of claim 10, further comprising a processor configured to schedule the second communication.

### Claim 14 (depends on 10)

The wireless device of claim 10, further comprising a processor configured to determine a scheduled start time of the second communication, wherein the first communication reserving the wireless medium is based on the determined start time.

### Claim 15 (depends on 10)

The wireless device of claim 10, further comprising a processor configured to determine a scheduled end time of the second communication, wherein the first communication reserving the wireless medium is based on the determined end time.

### Claim 16 (depends on 10)

The wireless device of claim 10, further comprising a processor configured to delay an acknowledgment of the second communication.

### Claim 17 (depends on 10)

The wireless device of claim 10, wherein the transmitter is further configured to transmit a block acknowledgement of the second communication.

### Claim 18 (depends on 10)

The wireless device of claim 10, wherein the second communication comprises a data media access control (MAC) protocol data unit (D-MPDU).

### Claim 19

An apparatus for receiving a long-range communication in a wireless network, the apparatus comprising:
means for transmitting a first communication reserving a wireless medium for at least a first time period, the first communication having a first range; and
means for receiving a second, unidirectional communication during the first time period, the second communication having a second range longer than the first range.

### Claim 20 (depends on 19)

The apparatus of claim 19, wherein the first communication, reserving the wireless medium for a first time period, comprises a clear-to-send (CTS) frame.

### Claim 21 (depends on 20)

The apparatus of claim 20, wherein CTS frame is configured to set a network allocation vector (NAV) that starts before a scheduled time of the long-range communication, and ends at a scheduled end time of the long-range communication.

### Claim 22 (depends on 19)

The apparatus of claim 19, further comprising means for scheduling the second communication.

### Claim 23 (depends on 19)

The apparatus of claim 19, further comprising means for determining a scheduled start time of the second communication, wherein the first communication reserving the wireless medium is based on the determined start time.

### Claim 24 (depends on 19)

The apparatus of claim 19, further comprising means for determining a scheduled end time of the second communication, wherein the first communication reserving the wireless medium is based on the determined end time.

### Claim 25 (depends on 19)

The apparatus of claim 19, further comprising means for delaying an acknowledgment of the second communication.

### Claim 26 (depends on 19)

The apparatus of claim 19, further comprising means for transmitting a block acknowledgement of the second communication.

### Claim 27 (depends on 19)

The apparatus of claim 19, wherein the second communication comprises a data media access control (MAC) protocol data unit (D-MPDU).

### Claim 28

A non-transitory computer-readable medium comprising code that, when executed, causes an apparatus to:
transmit a first communication reserving a wireless medium for at least a first time period, the first communication having a first range; and
receive a second, unidirectional communication during the first time period, the second communication having a second range longer than the first range.

### Claim 29 (depends on 28)

The medium of claim 28, wherein the first communication, reserving the wireless medium for a first time period, comprises a clear-to-send (CTS) frame.

### Claim 30 (depends on 29)

The medium of claim 29, wherein CTS frame is configured to set a network allocation vector (NAV) that starts before a scheduled time of the long-range communication, and ends at a scheduled end time of the long-range communication.

### Claim 31 (depends on 28)

The medium of claim 28, further comprising code that, when executed, causes the apparatus to schedule the second communication.

### Claim 32 (depends on 28)

The medium of claim 28, further comprising code that, when executed, causes the apparatus to determine a scheduled start time of the second communication, wherein the first communication reserving the wireless medium is based on the determined start time.

### Claim 33 (depends on 28)

The medium of claim 28, further comprising code that, when executed, causes the apparatus to determine a scheduled end time of the second communication, wherein the first communication reserving the wireless medium is based on the determined end time.

### Claim 34 (depends on 28)

The medium of claim 28, further comprising code that, when executed, causes the apparatus to delay an acknowledgment of the second communication.

### Claim 35 (depends on 28)

The medium of claim 28, further comprising code that, when executed, causes the apparatus to transmit a block acknowledgement of the second communication.

### Claim 36 (depends on 28)

The medium of claim 28, wherein the second communication comprises a data media access control (MAC) protocol data unit (D-MPDU).
