Methods and apparatus for avoiding collisions due to hidden wireless nodes
First Claim
1. An apparatus for wireless communications, comprising:
- a receiver configured to receive a multi-user (MU) transmission comprising at least one packet for the apparatus; and
a processing system configured to;
determine a checksum of the at least one packet; and
start an idle interval associated with the apparatus after receiving the MU transmission if the at least one packet comprises a frame check sequence (FCS) that corresponds to the checksum, wherein the idle interval includes at least enough time for transmission of an acknowledgment (ACK) frame.
1 Assignment
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Accused Products
Abstract
Certain aspects of the present disclosure provide techniques and apparatus for starting an extended idle interval in an effort to avoid collisions with transmissions from hidden wireless nodes. One example apparatus generally includes a receiver and a processing system. The receiver is typically configured to receive a multi-user (MU) transmission comprising at least one packet for the apparatus. The processing system is typically configured to determine a checksum of the at least one packet and to start an idle interval associated with the apparatus after receiving the MU transmission if the at least one packet comprises a frame check sequence (FCS) that corresponds to the checksum, wherein the idle interval includes at least enough time for transmission of an acknowledgment (ACK) frame. For certain aspects, the idle interval may comprise an extended interframe space (EIFS).
16 Citations
32 Claims
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1. An apparatus for wireless communications, comprising:
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a receiver configured to receive a multi-user (MU) transmission comprising at least one packet for the apparatus; and a processing system configured to; determine a checksum of the at least one packet; and start an idle interval associated with the apparatus after receiving the MU transmission if the at least one packet comprises a frame check sequence (FCS) that corresponds to the checksum, wherein the idle interval includes at least enough time for transmission of an acknowledgment (ACK) frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for wireless communications, comprising:
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receiving, at an apparatus, a multi-user (MU) transmission comprising at least one packet for the apparatus; determining a checksum of the at least one packet; and starting an idle interval associated with the apparatus after receiving the MU transmission if the at least one packet comprises a frame check sequence (FCS) that corresponds to the checksum, wherein the idle interval includes at least enough time for transmission of an acknowledgment (ACK) frame. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for wireless communications, comprising:
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means for receiving a multi-user (MU) transmission comprising at least one packet for the apparatus; means for determining a checksum of the at least one packet; and means for starting an idle interval associated with the apparatus after receiving the MU transmission if the at least one packet comprises a frame check sequence (FCS) that corresponds to the checksum, wherein the idle interval includes at least enough time for transmission of an acknowledgment (ACK) frame. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A non-transitory computer-readable medium comprising instructions executable to:
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receive, at an apparatus, a multi-user (MU) transmission comprising at least one packet for the apparatus; determine a checksum of the at least one packet; and start an idle interval associated with the apparatus after receiving the MU transmission if the at least one packet comprises a frame check sequence (FCS) that corresponds to the checksum, wherein the idle interval includes at least enough time for transmission of an acknowledgment (ACK) frame.
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32. A wireless node, comprising:
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at least one antenna; a receiver configured to receive, via the at least one antenna, a multi-user (MU) transmission comprising at least one packet for the wireless node; and a processing system configured to; determine a checksum of the at least one packet; and start an idle interval associated with the wireless node after receiving the MU transmission if the at least one packet comprises a frame check sequence (FCS) that corresponds to the checksum, wherein the idle interval includes at least enough time for transmission of an acknowledgment (ACK) frame.
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Specification