Clear channel assessment (CCA) threshold adaptation method
First Claim
1. A method for use in an Institute of Electrical and Electronics Engineers (IEEE) 802.11 station (STA), the method comprising:
- receiving a target transmit power control (TPC) parameter and a target clear channel assessment (CCA) parameter from an IEEE 802.11 cluster head configured to control TPC and CCA for a plurality of STAs associated with a basic service set (BSS);
dynamically calculating, at the STA, a STA specific TPC value and a STA specific CCA value based on the target TPC parameter and the target CCA parameter, wherein a product of the target TPC parameter and the target CCA parameter is a constant; and
determining whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) BSS is occupied or idle based on the STA specific CCA value.
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Abstract
Methods and apparatuses are described herein for adapting clear channel assessment (CCA) thresholds with or without Transmit Power Control (TPC) are disclosed. An IEEE 802.11 station (STA) may dynamically calculate a STA specific transmit power control (TPC) value and a STA specific clear channel assessment (CCA) value based on a target TPC parameter and a target CCA parameter. The target TPC parameter and the target CCA parameter may be received from an IEEE 802.11 cluster head configured to control TPC and CCA for a plurality of STAs associated with the BSS. The target TPC parameter and the target CCA parameter also may be related. The STA may then determine whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) basic service set (BSS) is occupied or idle based on the STA specific CCA value.
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Citations
18 Claims
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1. A method for use in an Institute of Electrical and Electronics Engineers (IEEE) 802.11 station (STA), the method comprising:
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receiving a target transmit power control (TPC) parameter and a target clear channel assessment (CCA) parameter from an IEEE 802.11 cluster head configured to control TPC and CCA for a plurality of STAs associated with a basic service set (BSS); dynamically calculating, at the STA, a STA specific TPC value and a STA specific CCA value based on the target TPC parameter and the target CCA parameter, wherein a product of the target TPC parameter and the target CCA parameter is a constant; and determining whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) BSS is occupied or idle based on the STA specific CCA value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An Institute of Electrical and Electronics Engineers (IEEE) 802.11 station (STA), the STA comprising:
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a receiver configured to receive a target transmit power control (TPC) parameter and a target clear channel assessment (CCA) parameter from an IEEE 802.11 cluster head configured to control TPC and CCA for a plurality of STAs associated with a basic service set (BSS); a processor configured to dynamically calculate, at the STA, a STA specific TPC value and a STA specific CCA value based on the target TPC parameter and the target CCA parameter, wherein a product of the target TPC parameter and the target CCA parameter is a constant; and the STA configured to determine whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) BSS is occupied or idle based on the STA specific CCA value. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for use in a network node, the method comprising:
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receiving a target clear channel assessment (CCA) parameter from an IEEE 802.11 cluster head configured to control transmit power control (TPC) and CCA for a plurality of network nodes, wherein a product of the target CCA parameter and a TPC parameter is a constant; dynamically calculating, at the network node, a network node specific CCA value based on the target CCA parameter and based on a frame type, wherein the frame type is a data frame with one destination or a control frame with a plurality of destinations; and determining whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) basic service set (BSS) is occupied or idle based on the network node specific CCA value. - View Dependent Claims (18)
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Specification