US20170078887A1 - Systems and methods for reuse of wireless communication resources in neighboring communication networks - Google Patents

Systems and methods for reuse of wireless communication resources in neighboring communication networks Download PDF

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Publication number
US20170078887A1
US20170078887A1 US15/239,656 US201615239656A US2017078887A1 US 20170078887 A1 US20170078887 A1 US 20170078887A1 US 201615239656 A US201615239656 A US 201615239656A US 2017078887 A1 US2017078887 A1 US 2017078887A1
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US
United States
Prior art keywords
reuse
wireless medium
stations
bss
parameters
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Abandoned
Application number
US15/239,656
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English (en)
Inventor
Gwendolyn Denise Barriac
George Cherian
Simone Merlin
Alfred Asterjadhi
Yan Zhou
Gang Ding
Qingjiang Tian
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Qualcomm Inc
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Qualcomm Inc
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Publication date
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Priority to US15/239,656 priority Critical patent/US20170078887A1/en
Priority to MX2018002896A priority patent/MX2018002896A/es
Priority to CA2994179A priority patent/CA2994179C/en
Priority to AU2016323633A priority patent/AU2016323633A1/en
Priority to NZ739346A priority patent/NZ739346A/en
Priority to KR1020187010450A priority patent/KR102515534B1/ko
Priority to MYPI2018700289A priority patent/MY187876A/en
Priority to RU2018108590A priority patent/RU2721747C2/ru
Priority to JP2018513485A priority patent/JP2018527840A/ja
Priority to CN202210381227.XA priority patent/CN114584231B9/zh
Priority to SG11201800603PA priority patent/SG11201800603PA/en
Priority to EP16760260.6A priority patent/EP3351045A1/en
Priority to PCT/US2016/047594 priority patent/WO2017048453A1/en
Priority to CN201680052919.2A priority patent/CN108029124B/zh
Assigned to QUALCOMM INCORPORATED reassignment QUALCOMM INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BARRIAC, GWENDOLYN DENISE, MERLIN, SIMONE, ZHOU, YAN, ASTERJADHI, Alfred, TIAN, QINGJIANG, CHERIAN, GEORGE, DING, GANG
Publication of US20170078887A1 publication Critical patent/US20170078887A1/en
Priority to IL257075A priority patent/IL257075A/en
Priority to PH12018500237A priority patent/PH12018500237A1/en
Priority to SA518390938A priority patent/SA518390938B1/ar
Priority to CL2018000612A priority patent/CL2018000612A1/es
Priority to CONC2018/0002594A priority patent/CO2018002594A2/es
Priority to ZA2018/01751A priority patent/ZA201801751B/en
Priority to HK18113890.4A priority patent/HK1254805A1/zh
Priority to US16/516,495 priority patent/US10666368B2/en
Priority to JP2020209219A priority patent/JP7080961B2/ja
Priority to AU2021200088A priority patent/AU2021200088B2/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H04W72/048—
    • H04W72/082—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0808—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • Certain aspects of the present disclosure generally relate to wireless communications, and more particularly, to methods and apparatuses for reusing wireless communication resources in neighboring communication networks.
  • communications networks are used to exchange messages among several interacting spatially-separated devices.
  • Networks can be classified according to geographic scope, which could be, for example, a metropolitan area, a local area, or a personal area.
  • Such networks can be designated respectively as a wide area network (WAN), metropolitan area network (MAN), local area network (LAN), or personal area network (PAN).
  • Networks also differ according to the switching/routing technique used to interconnect the various network nodes and devices (e.g., circuit switching vs. packet switching), the type of physical media employed for transmission (e.g., wired vs. wireless), and the set of communication protocols used (e.g., Internet protocol suite, SONET (Synchronous Optical Networking), Ethernet, etc.).
  • Wireless networks are often preferred when the network elements are mobile and thus have dynamic connectivity needs, or if the network architecture is formed in an ad hoc, rather than fixed, topology.
  • Wireless networks employ intangible physical media in an unguided propagation mode using electromagnetic waves in the radio, microwave, infrared, optical, etc. frequency bands. Wireless networks advantageously facilitate user mobility and rapid field deployment when compared to fixed wired networks.
  • the devices in a wireless network can transmit/receive information between each other.
  • Device transmissions can interfere with each other, and certain transmissions can selectively block other transmissions.
  • congestion and inefficient link usage can result.
  • systems, methods, and non-transitory computer-readable media are needed for improving communication efficiency in wireless networks.
  • One aspect of the present disclosure provides a method of managing reuse of a wireless medium.
  • the method includes determining, at an access point, whether to allow reuse of the wireless medium by one or more stations in a basic service set (BSS).
  • BSS basic service set
  • the method further includes transmitting, upon determining to allow reuse, an indication that reuse of the wireless medium can be permitted for stations meeting a criteria.
  • the method further includes determining one or more reuse parameters.
  • the method further includes transmitting the one or more reuse parameters.
  • the one or more reuse parameters can include a plurality of reuse parameters that are different for different stations.
  • the method can further include selecting a reuse mode comprising one or more of the following conditions either alone or in combination: stations can be permitted to reuse the wireless medium when detecting an overlapping BSS (OBSS) transmission from a transmitting device that can have a received signal strength indication (RSSI) less than a first threshold, stations can be permitted to reuse the wireless medium when a destination device of the OBSS transmission can have an RSSI less than a second threshold, and stations can be permitted to reuse the wireless medium when the transmitting device and/or intended receiving device can have an RSSI less than a dynamic threshold that can be a function of one or more preamble parameters.
  • the method can further include transmitting an indication of the selected reuse mode.
  • the first threshold and the second threshold can be the same.
  • the dynamic threshold can be a function of a transmit power of the transmitting device and/or of an intended receiver.
  • the one or more reuse parameters can include one or more of: a transmit power, an energy detection (ED) level, a transmitter received signal strength indication (RSSI) threshold, an intended receiver RSSI threshold, a RSSI threshold function based on one or more preamble parameters, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • determining whether to allow reuse of the wireless medium can be based on a BSS distance of an access point and/or a BSS distance of the one or more stations.
  • the method can further include determining to allow reuse of the wireless medium and using enhanced request-to-send and/or enhanced clear-to-send transmissions.
  • the criteria can define that all stations in the BSS can be allowed to reuse the wireless medium.
  • the criteria can define that a subset of stations in the BSS can be allowed to reuse the wireless medium.
  • the subset of stations can be based on their BSS distance.
  • the access point can have multiple BSS identifiers, the method further comprising signaling one or more colors to which the one or more stations should defer, or selecting the same color as a neighboring access point.
  • the one or more reuse parameters comprise one or more of a transmit power, an energy detection (ED) level, a transmitter received signal strength indication (RSSI) threshold, an intended receiver RSSI threshold, an RSSI threshold function based on one or more parameters, the one or more parameters including atransmit power or other parameters included in a preamble of received packets, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • ED energy detection
  • RSSI transmitter received signal strength indication
  • RSSI intended receiver RSSI threshold
  • RSSI threshold function based on one or more parameters
  • the one or more parameters including atransmit power or other parameters included in a preamble of received packets, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • determining whether to allow reuse of the wireless medium is based on a BSS distance of an access point and/or a BSS distance of the one or more stations.
  • the criteria defines that all stations in the BSS are allowed to reuse the wireless medium, or a subset of stations in the BSS are allowed to reuse the wireless medium, wherein the subset of stations are based on the BSS distance of each of the one or more stations.
  • the access point has multiple BSS identifiers, the method further comprising signaling one or more BSS identifiers to which the one or more stations should defer, or choosing all the BSS identifiers to share the same color.
  • the apparatus includes a processor configured to determine whether to allow reuse of the wireless medium by one or more stations in a basic service set (BSS).
  • the processor is further configured to determine one or more reuse parameters.
  • the apparatus further includes a transmitter configured to transmit, upon determining to allow reuse, an indication that reuse of the wireless medium can be permitted for stations meeting a criteria.
  • the transmitter is further configured to transmit the one or more reuse parameters.
  • the one or more reuse parameters can include a plurality of reuse parameters that are different for different stations.
  • the processor can be further configured to select a reuse mode comprising one or more of the following conditions either alone or in combination: stations can be permitted to reuse the wireless medium when detecting an overlapping BSS (OBSS) transmission from a transmitting device that can have a received signal strength indication (RSSI) less than a first threshold, stations can be permitted to reuse the wireless medium when a destination device of the OBSS transmission can have an RSSI less than a second threshold, and stations can be permitted to reuse the wireless medium when the transmitting device and/or intended receiving device can have an RSSI less than a dynamic threshold that can be a function of one or more preamble parameters.
  • the transmitter can be further configured to transmit an indication of the selected reuse mode.
  • the first threshold and the second threshold can be the same.
  • the dynamic threshold can be a function of a transmit power of the transmitting device and/or of an intended receiver.
  • the one or more reuse parameters can include one or more of: a transmit power, an energy detection (ED) level, a transmitter received signal strength indication (RSSI) threshold, an intended receiver RSSI threshold, a RSSI threshold function based on one or more preamble parameters, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • the processor can be configured to determine whether to allow reuse of the wireless medium based on a BSS distance of an access point and/or a BSS distance of the one or more stations. In various embodiments, the processor can be further configured to determine to allow reuse of the wireless medium and to use enhanced request-to-send and/or enhanced clear-to-send transmissions. In various embodiments, the criteria can define that all stations in the BSS can be allowed to reuse the wireless medium.
  • the criteria can define that a subset of stations in the BSS can be allowed to reuse the wireless medium.
  • the subset of stations can be based on their BSS distance.
  • the apparatus can include an access point having multiple BSS identifiers, and wherein the processor can be further configured to signal one or more colors to which the one or more stations should defer, or to select the same color as a neighboring access point.
  • the apparatus includes means for determining whether to allow reuse of the wireless medium by one or more stations in a basic service set (BSS).
  • the apparatus further includes means for transmitting, upon determining to allow reuse, an indication that reuse of the wireless medium can be permitted for stations meeting a criteria.
  • the apparatus further includes means for determining one or more reuse parameters.
  • the apparatus further includes means for transmitting the one or more reuse parameters.
  • the one or more reuse parameters can include a plurality of reuse parameters that are different for different stations.
  • the apparatus can further include means for selecting a reuse mode comprising one or more of the following conditions either alone or in combination: stations can be permitted to reuse the wireless medium when detecting an overlapping BSS (OBSS) transmission from a transmitting device that can have a received signal strength indication (RSSI) less than a first threshold, stations can be permitted to reuse the wireless medium when a destination device of the OBSS transmission can have an RSSI less than a second threshold, and stations can be permitted to reuse the wireless medium when the transmitting device and/or intended receiving device can have an RSSI less than a dynamic threshold that can be a function of one or more preamble parameters.
  • the apparatus can further include means for transmitting an indication of the selected reuse mode.
  • the first threshold and the second threshold can be the same.
  • the dynamic threshold can be a function of a transmit power of the transmitting device and/or of an intended receiver.
  • the one or more reuse parameters can include one or more of: a transmit power, an energy detection (ED) level, a transmitter received signal strength indication (RSSI) threshold, an intended receiver RSSI threshold, a RSSI threshold function based on one or more preamble parameters, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • determining whether to allow reuse of the wireless medium can be based on a BSS distance of an access point and/or a BSS distance of the one or more stations.
  • the apparatus can further include means for determining to allow reuse of the wireless medium and using enhanced request-to-send and/or enhanced clear-to-send transmissions.
  • the criteria can define that all stations in the BSS can be allowed to reuse the wireless medium.
  • the criteria can define that a subset of stations in the BSS can be allowed to reuse the wireless medium.
  • the subset of stations can be based on their BSS distance.
  • the apparatus can include an access point having multiple BSS identifiers, the apparatus further comprising means for signaling one or more colors to which the one or more stations should defer, or selecting the same color as a neighboring access point.
  • the medium includes code that, when executed, causes an apparatus to comprising code that, when executed, causes an apparatus to determine whether to allow reuse of the wireless medium by one or more stations in a basic service set (BSS).
  • the medium further includes code that, when executed, causes the apparatus to transmit, upon determining to allow reuse, an indication that reuse of the wireless medium can be permitted for stations meeting a criteria.
  • the medium further includes code that, when executed, causes the apparatus to determine one or more reuse parameters.
  • the medium further includes code that, when executed, causes the apparatus to transmit the one or more reuse parameters.
  • the one or more reuse parameters can include a plurality of reuse parameters that are different for different stations.
  • the medium can further include code that, when executed, causes the apparatus to select a reuse mode comprising one or more of the following conditions either alone or in combination: stations can be permitted to reuse the wireless medium when detecting an overlapping BSS (OBSS) transmission from a transmitting device that can have a received signal strength indication (RSSI) less than a first threshold, stations can be permitted to reuse the wireless medium when a destination device of the OBSS transmission can have an RSSI less than a second threshold, and stations can be permitted to reuse the wireless medium when the transmitting device and/or intended receiving device can have an RSSI less than a dynamic threshold that can be a function of one or more preamble parameters.
  • the medium can further include code that, when executed, causes the apparatus to transmit an indication of the selected reuse mode.
  • the first threshold and the second threshold can be the same.
  • the dynamic threshold can be a function of a transmit power of the transmitting device and/or of an intended receiver.
  • the one or more reuse parameters can include one or more of: a transmit power, an energy detection (ED) level, a transmitter received signal strength indication (RSSI) threshold, an intended receiver RSSI threshold, a RSSI threshold function based on one or more preamble parameters, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • the medium can further include code that, when executed, causes the apparatus to determine whether to allow reuse of the wireless medium based on a BSS distance of an access point and/or a BSS distance of the one or more stations. In various embodiments, the medium can further include code that, when executed, causes the apparatus to determine to allow reuse of the wireless medium and to use enhanced request-to-send and/or enhanced clear-to-send transmissions. In various embodiments, the criteria can define that all stations in the BSS can be allowed to reuse the wireless medium.
  • the criteria can define that a subset of stations in the BSS can be allowed to reuse the wireless medium.
  • the subset of stations can be based on their BSS distance.
  • the apparatus can include an access point having multiple BSS identifiers, further comprising code that, when executed, causes the apparatus to signal one or more colors to which the one or more stations should defer, or to select the same color as a neighboring access point.
  • the method includes detecting, at a station, an overlapping basic service set (OBSS) transmission.
  • the method further includes determining whether to reuse the wireless medium.
  • the method further includes determining one or more reuse parameters.
  • the method further includes selectively transmitting a message based on said determining whether to reuse the wireless medium and the one or more reuse parameters.
  • OBSS overlapping basic service set
  • the method can further include selecting a reuse mode comprising one or more of the following conditions either alone or in combination: stations can be permitted to reuse the wireless medium when detecting the OBSS transmission from a transmitting device that can have a received signal strength indication (RSSI) less than a first threshold, stations can be permitted to reuse the wireless medium when a destination device of the OBSS transmission can have an RSSI less than a second threshold, and stations can be permitted to reuse the wireless medium when the transmitting device can have an RSSI less than a dynamic threshold that can be a function of one or more preamble parameters.
  • the method further includes applying the selected reuse mode.
  • the first threshold and the second threshold can be the same.
  • the one or more reuse parameters can include one or more of: a transmit power, an energy detection (ED) level, a transmitter received signal strength indication (RSSI) threshold, a receiver RSSI threshold, a RSSI threshold function based on one or more preamble parameters, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • determining whether to reuse the wireless medium can be based on a BSS distance of an access point and/or a BSS distance of the station.
  • the method can further include determining to reuse the wireless medium and using enhanced request-to-send and/or enhanced clear-to-send transmissions.
  • the method can further include receiving an indication that reuse of the wireless medium can be permitted for stations meeting a criteria.
  • the criteria can define that all stations in the BSS can be allowed to reuse the wireless medium.
  • the criteria can define that a subset of stations in the BSS can be allowed to reuse the wireless medium.
  • the subset of stations can be based on their BSS distance.
  • the one or more parameters can be defined in the OBSS transmission.
  • the apparatus includes a processor configured to detect an overlapping basic service set (OBSS) transmission.
  • the processor is further configured to determine whether to reuse the wireless medium.
  • the processor is further configured to determine one or more reuse parameters.
  • the apparatus further includes a transmitter configured to selectively transmit a message based on said determining whether to reuse the wireless medium and the one or more reuse parameters.
  • OBSS overlapping basic service set
  • the one or more reuse parameters can include a plurality of reuse parameters that are different for different stations.
  • the processor can be further configured to select a reuse mode comprising one or more of the following conditions either alone or in combination: stations can be permitted to reuse the wireless medium when detecting the OBSS transmission from a transmitting device that can have a received signal strength indication (RSSI) less than a first threshold, stations can be permitted to reuse the wireless medium when a destination device of the OBSS transmission can have an RSSI less than a second threshold, and stations can be permitted to reuse the wireless medium when the transmitting device can have an RSSI less than a dynamic threshold that can be a function of one or more preamble parameters.
  • the processor can be further configured to apply the selected reuse mode.
  • the first threshold and the second threshold can be the same.
  • the one or more reuse parameters can include one or more of: a transmit power, an energy detection (ED) level, a transmitter received signal strength indication (RSSI) threshold, a receiver RSSI threshold, a RSSI threshold function based on one or more preamble parameters, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • the processor can be configured to determine whether to reuse the wireless medium based on a BSS distance of an access point and/or a BSS distance of the station.
  • the processor can be further configured to determine to reuse the wireless medium and to use enhanced request-to-send and/or enhanced clear-to-send transmissions.
  • the apparatus can further include a receiver configured to receive an indication that reuse of the wireless medium can be permitted for stations meeting a criteria.
  • the criteria can define that all stations in the BSS can be allowed to reuse the wireless medium.
  • the criteria can define that a subset of stations in the BSS can be allowed to reuse the wireless medium.
  • the subset of stations can be based on their BSS distance.
  • the one or more parameters can be defined in the OBSS transmission.
  • the apparatus includes means for detecting an overlapping basic service set (OBSS) transmission.
  • the apparatus includes means for determining whether to reuse the wireless medium.
  • the apparatus includes means for determining one or more reuse parameters.
  • the apparatus includes means for selectively transmitting a message based on said determining whether to reuse the wireless medium and the one or more reuse parameters.
  • OBSS overlapping basic service set
  • the one or more reuse parameters can include a plurality of reuse parameters that are different for different stations.
  • the apparatus can further include means for selecting a reuse mode comprising one or more of the following conditions either alone or in combination: stations can be permitted to reuse the wireless medium when detecting the OBSS transmission from a transmitting device that can have a received signal strength indication (RSSI) less than a first threshold, stations can be permitted to reuse the wireless medium when a destination device of the OBSS transmission can have an RSSI less than a second threshold, and stations can be permitted to reuse the wireless medium when the transmitting device can have an RSSI less than a dynamic threshold that can be a function of one or more preamble parameters.
  • the apparatus can further include means for applying the selected reuse mode.
  • the first threshold and the second threshold can be the same.
  • the one or more reuse parameters can include one or more of: a transmit power, an energy detection (ED) level, a transmitter received signal strength indication (RSSI) threshold, a receiver RSSI threshold, a RSSI threshold function based on one or more preamble parameters, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • determining whether to reuse the wireless medium can be based on a BSS distance of an access point and/or a BSS distance of the station.
  • the apparatus can further include means for determining to reuse the wireless medium and to use enhanced request-to-send and/or enhanced clear-to-send transmissions. In various embodiments, the apparatus can further include receiving an indication that reuse of the wireless medium can be permitted for stations meeting a criteria. In various embodiments, the criteria can define that all stations in the BSS can be allowed to reuse the wireless medium.
  • the criteria can define that a subset of stations in the BSS can be allowed to reuse the wireless medium.
  • the subset of stations can be based on their BSS distance.
  • the one or more parameters can be defined in the OBSS transmission.
  • the medium includes code that, when executed, causes an apparatus to detect an overlapping basic service set (OBSS) transmission.
  • the medium further includes code that, when executed, causes the apparatus to determine whether to reuse the wireless medium.
  • the medium further includes code that, when executed, causes the apparatus to determine one or more reuse parameters.
  • the medium further includes code that, when executed, causes the apparatus to selectively transmit a message based on said determining whether to reuse the wireless medium and the one or more reuse parameters.
  • OBSS overlapping basic service set
  • the one or more reuse parameters can include a plurality of reuse parameters that are different for different stations.
  • the medium can further include code that, when executed, causes the apparatus to select a reuse mode comprising one or more of the following conditions either alone or in combination: stations can be permitted to reuse the wireless medium when detecting the OBSS transmission from a transmitting device that can have a received signal strength indication (RSSI) less than a first threshold, stations can be permitted to reuse the wireless medium when a destination device of the OBSS transmission can have an RSSI less than a second threshold, and stations can be permitted to reuse the wireless medium when the transmitting device can have an RSSI less than a dynamic threshold that can be a function of one or more preamble parameters.
  • the medium further includes code that, when executed, causes the apparatus to apply the selected reuse mode.
  • the first threshold and the second threshold can be the same.
  • the one or more reuse parameters can include one or more of: a transmit power, an energy detection (ED) level, a transmitter received signal strength indication (RSSI) threshold, a receiver RSSI threshold, a RSSI threshold function based on one or more preamble parameters, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • determining whether to reuse the wireless medium can be based on a BSS distance of an access point and/or a BSS distance of the station.
  • the medium can further include code that, when executed, causes the apparatus to determine to reuse the wireless medium and to use enhanced request-to-send and/or enhanced clear-to-send transmissions.
  • the medium can further include code that, when executed, causes the apparatus to receive an indication that reuse of the wireless medium can be permitted for stations meeting a criteria.
  • the criteria can define that all stations in the BSS can be allowed to reuse the wireless medium.
  • the criteria can define that a subset of stations in the BSS can be allowed to reuse the wireless medium.
  • the subset of stations can be based on their BSS distance.
  • the one or more parameters can be defined in the OBSS transmission.
  • FIG. 1 illustrates an example of a wireless communication system in which aspects of the present disclosure can be employed.
  • FIG. 2 illustrates various components that can be utilized in a wireless device that can be employed within the wireless communication system of FIG. 1 , in accordance with an embodiment.
  • FIG. 3 is an exemplary illustration of two access points and the associated devices in each basic service set, in accordance with an embodiment.
  • FIG. 4 shows a flowchart for an exemplary method of reusing a wireless medium that can be employed within the wireless communication system of FIG. 1 .
  • FIG. 5 shows a flowchart for an exemplary method of reusing a wireless medium that can be employed within the wireless communication system of FIG. 1 .
  • Wireless network technologies can include various types of wireless local area networks (WLANs).
  • WLAN can be used to interconnect nearby devices together, employing widely used networking protocols.
  • the various aspects described herein can apply to any communication standard, such as Wi-Fi or, more generally, any member of the IEEE 802.11 family of wireless protocols.
  • wireless signals can be transmitted according to a high-efficiency 802.11 protocol using orthogonal frequency-division multiplexing (OFDM), direct-sequence spread spectrum (DSSS) communications, a combination of OFDM and DSSS communications, or other schemes such as multiple-input and multiple-output (MIMO).
  • OFDM orthogonal frequency-division multiplexing
  • DSSS direct-sequence spread spectrum
  • MIMO multiple-input and multiple-output
  • a WLAN includes various devices that access the wireless network.
  • APs access points
  • STAs stations
  • an AP serves as a hub or base station for the WLAN and an STA serves as a user of the WLAN.
  • a STA can be a laptop computer, a personal digital assistant (PDA), a mobile phone, etc.
  • PDA personal digital assistant
  • an STA connects to an AP via a Wi-Fi (e.g., IEEE 802.11 protocol such as 802.11ax) compliant wireless link to obtain general connectivity to the Internet or to other wide area networks (WAN).
  • Wi-Fi e.g., IEEE 802.11 protocol such as 802.11ax
  • WAN wide area networks
  • an STA can also be used as an AP.
  • OFDMA Orthogonal Frequency Division Multiple Access
  • OFDMA orthogonal Frequency Division Multiple Access
  • OFDMA orthogonal frequency division multiplexing
  • OFDM orthogonal frequency division multiplexing
  • a wireless node implemented in accordance with the teachings herein can comprise an access point or an access terminal.
  • An access point can comprise, be implemented as, or known as a NodeB, Radio Network Controller (“RNC”), eNodeB, Base Station Controller (“BSC”), Base Transceiver Station (“BTS”), Base Station (“BS”), Transceiver Function (“TF”), Radio Router, Radio Transceiver, Basic Service Set (“BSS”), Extended Service Set (“ESS”), Radio Base Station (“RBS”), or some other terminology.
  • RNC Radio Network Controller
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • BS Base Station
  • Transceiver Function TF
  • Radio Router Radio Transceiver
  • BSS Basic Service Set
  • ESS Extended Service Set
  • RBS Radio Base Station
  • a station can also comprise, be implemented as, or known as a user terminal, an access terminal (“AT”), a subscriber station, a subscriber unit, a mobile station, a remote station, a remote terminal, a user agent, a user device, user equipment, or some other terminology.
  • an access terminal can comprise a cellular telephone, a cordless telephone, a Session Initiation Protocol (“SIP”) phone, a wireless local loop (“WLL”) station, a personal digital assistant (“PDA”), a handheld device having wireless connection capability, or some other suitable processing device connected to a wireless modem.
  • SIP Session Initiation Protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • a phone e.g., a cellular phone or smart phone
  • a computer e.g., a laptop
  • a portable communication device e.g., a headset
  • a portable computing device e.g., a personal data assistant
  • an entertainment device e.g., a music or video device, or a satellite radio
  • gaming device or system e.g., a gaming console, a global positioning system device, or any other suitable device that is configured to communicate via a wireless medium.
  • FIG. 1 illustrates an example of a wireless communication system 100 in which aspects of the present disclosure can be employed.
  • the wireless communication system 100 can operate pursuant to an IEEE 802.11 wireless standard such as, for example, the 802.11ax standard.
  • the wireless communication system 100 can include an AP 104 , which communicates with STAs 106 A-D (referred to herein as “STA 106 ” or “STAs 106 ”).
  • a variety of processes and methods can be used for transmissions in the wireless communication system 100 between the AP 104 and the STAs 106 .
  • signals can be transmitted and received between the AP 104 and the STAs 106 in accordance with OFDMA techniques.
  • the wireless communication system 100 can be referred to as an OFDMA system.
  • a communication link that facilitates transmission from the AP 104 to one or more of the STAs 106 can be referred to as a downlink (DL) 108
  • a communication link that facilitates transmission from one or more of the STAs 106 to the AP 104 can be referred to as an uplink (UL) 110
  • DL downlink
  • UL uplink
  • a downlink 108 can be referred to as a forward link or a forward channel
  • an uplink 110 can be referred to as a reverse link or a reverse channel.
  • the AP 104 can provide wireless communication coverage in a basic service area (BSA) 102 .
  • the AP 104 along with the associated STAs 106 that use the AP 104 for communication can be referred to as a basic service set (BSS).
  • BSS basic service set
  • Associated STAs 106 may refer to one or more associated station (e.g., STA 106 A) that has performed an association procedure with the AP 104 .
  • the wireless communication system 100 may not have a central AP 104 , and may alternatively function as a peer-to-peer network between/among the STAs 106 . Accordingly, the functions of the AP 104 described herein can additionally or alternatively be performed by one or more of the STAs 106 .
  • FIG. 2 illustrates various components that can be utilized in a wireless device 202 that can be employed within the wireless communication system 100 of FIG. 1 , in accordance with an embodiment.
  • the wireless device 202 is an example of a device that can be configured to implement the various methods described herein.
  • the wireless device 202 can comprise the AP 104 or one of the STAs 106 .
  • the wireless device 202 can include a processor 204 , which may be configured to control the operation of the wireless device 202 .
  • the processor 204 can also be referred to as a central processing unit (CPU).
  • the wireless device 202 can also include a memory 206 , which can include one or both of read-only memory (ROM) and random access memory (RAM).
  • the memory 206 stores or provides instructions or data that may be utilized by the processor 204 .
  • NVRAM non-volatile random access memory
  • the processor 204 can be configured to perform logical and arithmetic operations based on program instructions stored within the memory 206 .
  • the instructions in the memory 206 can be executable (e.g., software) to implement the methods described herein.
  • the processor 204 can comprise, or be a component of, a processing system implemented with one or more processors.
  • the one or more processors can be implemented with any combination of general-purpose microprocessors, microcontrollers, digital signal processors (DSPs), field programmable gate array (FPGAs), programmable logic devices (PLDs), controllers, state machines, gated logic, discrete hardware components, dedicated hardware finite state machines, or any other suitable entities that can perform calculations or other manipulations of information.
  • the processing system can also include machine-readable media for storing software.
  • Software shall be construed broadly to mean any type of instructions, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. Instructions can include code (e.g., in source code format, binary code format, executable code format, or any other suitable format of code). In various embodiments, the instructions, when executed by the one or more processors, cause the processing system to perform the various functions described herein.
  • the wireless device 202 can also include a housing 208 , which can include a transmitter 210 and a receiver 212 to allow transmission and reception of data between the wireless device 202 and a remote location.
  • the transmitter 210 and the receiver 212 can be combined into a transceiver 214 .
  • an antenna 216 can be attached to the housing 208 and electrically coupled to the transceiver 214 .
  • the wireless device 202 can also include (not shown) multiple transmitters, multiple receivers, multiple transceivers, and/or multiple antennas, which can be utilized during MIMO communications, for example.
  • the wireless device 202 can also include a signal detector 218 that can be used to detect and quantify the level of signals received by the transceiver 214 .
  • the signal detector 218 can detect the received signals as total energy, energy per subcarrier per symbol, power spectral density and other signals.
  • the wireless device 202 can also include a digital signal processor (DSP) 220 for use in processing signals.
  • DSP digital signal processor
  • the DSP 220 can be configured to generate a data unit for transmission.
  • the generated data unit can comprise a physical layer data unit (PPDU), which may also be referred to as a “packet,” a “message” or a “frame.”
  • PPDU physical layer data unit
  • the wireless device 202 can further comprise a user interface 222 .
  • the user interface 222 can comprise a keypad, a microphone, a speaker, or a display.
  • the user interface 222 can include any element or component that conveys information to a user of the wireless device 202 or receives input from the user.
  • the various components of the wireless device 202 can be coupled together by a system bus 226 .
  • the system bus 226 can include a data bus, for example, as well as a power bus, a control signal bus, or a status signal bus in addition to the data bus.
  • the components of the wireless device 202 can be coupled together, or accept or provide inputs to each, other using some other mechanism.
  • processor 204 can be used to implement not only the functionality described above with respect to the processor 204 , but also to implement the functionality described above with respect to the signal detector 218 or the DSP 220 . Further, each of the components illustrated in FIG. 2 can be implemented using a plurality of separate elements.
  • the wireless device 202 can comprise an AP 104 or an STA 106 , and can be used to transmit and/or receive data.
  • the data units exchanged between the AP 104 and the STAs 106 can include data frames, control frames, and/or management frames.
  • Data frames can be used for transmitting data from an AP 104 or a STA 106 to other APs 104 or STAs 106 .
  • Control frames can be used together with data frames for performing various operations or for reliably delivering data (e.g., acknowledging receipt of data, polling of APs, area-clearing operations, channel acquisition, carrier-sensing maintenance functions, etc.).
  • management frames can be used for various supervisory functions (e.g., for joining and departing from wireless networks, etc.).
  • a wireless device such as the STA 106 A or the AP 104 of FIG. 1
  • a wireless device that has data for transmission can monitor the wireless medium in order to determine whether the medium is free for transmission. If the wireless device detects a competing transmission, the wireless device can still reuse the wireless medium (by proceeding with its own transmission without deferral to the detected packet transmission) under one or more conditions discussed herein.
  • Various embodiments of wireless medium reuse are described in U.S. application Ser. No. 14/487,019, filed Sep. 15, 2014, Atty. Docket No. 135020; and U.S. application Ser. No. 14/265,112, filed Apr. 29, 2014, Atty. Docket No. 132682, the entirety of each of which is hereby incorporated by reference.
  • the wireless device can determine whether the detected transmission is an inter-basic service set (BSS) or intra-BSS transmission based on a BSS color indication (for example, in a signal field such as SIG A) or based on a media access control (MAC) address in a MAC header of the transmission. If the detected transmission is an inter-BSS frame, and various other conditions discussed herein are met, the wireless device can apply an overlapping BSS (OBSS) packet detection (PD) level that is greater than a minimum receive sensitivity level. Accordingly, when the proper conditions are met, the wireless device can refrain from deferring to OBSS packets by applying a higher threshold during clear channel assessment (CCA).
  • CCA clear channel assessment
  • the AP 104 can provide the conditions under which the OBSS PD level should be applied (referred to herein as “OBSS conditions”), and the OBSS PD level itself, to the STAs 106 A- 106 D.
  • OBSS conditions the conditions under which the OBSS PD level should be applied
  • the AP 104 can provide the OBSS conditions in a message such as a beacon, a broadcast information element (IE), or any other wireless communication.
  • IE broadcast information element
  • FIG. 3 is an exemplary illustration of two access points and the associated devices in each respective BSS, in accordance with an embodiment.
  • the BSS may refer to an AP 104 along with the associated STAs 106 that use the AP 104 for communication.
  • the AP 304 A may have a BSS 302 A, which comprises associated STAs 306 A and 306 C.
  • the phrase “BSS” may refer to the area which the AP 304 A services. Although illustrated here as a circle, this coverage of the BSS 302 A is merely illustrative.
  • the AP 304 A may be associated with any number of different STAs.
  • the AP 304 A may be associated with more or less than the two illustrated STAs 306 A, 306 C.
  • the AP 304 B may have a BSS, such as BSS 302 B, which may comprise one or more STAs, such as STA 306 B.
  • the BSS of the AP 304 A and the AP 304 B are not illustrated as overlapping, in some aspects, the BSS 302 A from one AP 304 A may overlap with the BSS 302 B from another AP 304 B, or the BSA (not illustrated) of one AP 304 A may overlap with the BSA of another AP 304 B.
  • the BSSes may be based on the same protocols, such as a particular IEEE 802.11 protocol, or may be based on different protocols.
  • these BSSes may use the same portion of the spectrum, such as using the same channel (e.g., overlapping or partially overlapping), or may use adjacent or different channels.
  • a channel may comprise a bandwidth, and the bandwidth may be regarded as comprising more than one sub-band (e.g., 5 MHz, 10 MHz, 20 MHz, 40 MHz, 80 MHz, etc.).
  • OBSSes may be regarded as utilizing overlapping or partially overlapping bandwidths or sub-bands of a channel, or adjacent or different sub-bands of a channel.
  • deferral rules may be used by devices within a BSS to determine when to defer to other traffic on the wireless medium, when to transmit on the wireless medium, how long to wait before attempting to access the wireless medium, etc.
  • a BSS may achieve better performance if the devices in that BSS have an easier time accessing the wireless medium, such as, for example, when the deferral rules for the BSS have been loosened or made less stringent.
  • Loosening deferral rules may take multiple forms. For example, in some aspects, clear channel assessment thresholds may be increased.
  • a device such as a STA 106 or an AP 104 , transmits on the wireless medium
  • that device may perform a clear channel assessment (CCA).
  • CCA may include, for example, determining an average amount of energy that is present on a particular portion of the channel during a particular time or time frame.
  • the device may compare the detected amount of energy to a threshold, in order to determine whether or not the wireless medium is in use.
  • this threshold may be altered, in order to allow devices to transmit even when larger amounts of energy are present on the wireless medium, or to forbid devices from transmitting when lower amounts of energy are present. Accordingly, adjusting this threshold, depending upon the direction of the adjustment, may be referred to herein as “loosening” or “tightening” the deferral rules for a BSS, as it may make devices either more or less likely to defer to the traffic present on the wireless medium.
  • deferral rules for a BSS may be loosened to allow devices to transmit on top of packets which they detect when those packets are from an overlapping basic service set (OBSS).
  • OBSS overlapping basic service set
  • the BSS 302 B may be thought of as an OBSS.
  • STA 306 A may be close enough to STA 306 B or AP 304 B that each of the two devices may be able to receive communications from the other (e.g., when BSS 302 A and BSS 302 B are using one or more of the same channels and technologies).
  • a BSS may adjust its rules, in accordance with one aspect, such that when the STA 306 A detects a transmission, and detects that this transmission is from the STA 306 B, the AP 304 B, or another device in the OBSS (e.g., BSS 302 B), the STA 306 A may still use the wireless medium, as long as a detected energy is below a certain threshold. Accordingly, making the adjustment above to allow the STA 306 A to use the medium more often despite other medium use may also be referred to herein as loosening a deferral rule. In some aspects, loosening of deferral rules may be done for an entire BSS.
  • the AP 304 A may transmit a message to each device within the BSS 302 A, informing those devices of the deferral rules for the BSS 302 A.
  • the AP 304 A may additionally or alternatively broadcast a message in the beacon frame, or using a management frame.
  • the loosening of the deferral rules may only apply to certain devices, for example if those devices have a BSS distance that is above a threshold.
  • a BSS may achieve better performance with less stringent deferral rules when, for example, there are fewer nearby OBSSes.
  • deferral rules may be loosened when there are no “contiguous” BSSes on the same channel. For example, if a BSS is far enough away from neighboring (e.g., within a specified geographical distance) OBSSes on the same channel, deferral rules may be loosened.
  • tightening deferral rules may include decreasing one or more CCA thresholds (also referred to herein as a clear channel assessment threshold).
  • an AP may be configured to switch to a primary channel that is not aligned with most of its neighbors when it determines that neighboring BSSes are using the same, or overlapping, channels.
  • this switching process may not be considered a deferral rule, it may be useful in lieu of, or in addition to, making deferral rules more or less stringent. Accordingly, methods and apparatus for enabling a BSS to adjust the stringency of its deferral rules or switching channels based on the proximity of OBSSes or how active or inactive the OBSSes are described.
  • the AP 304 A can be configured to indicate at least one of three example reuse modes in which the STA 306 A can determine whether to defer to OBSS transmissions.
  • a first mode the STA 306 A can be configured to defer to a transmission from STA 306 B when a received signal strength indication (RSSI) in the preamble of the transmission from STA 306 B is greater than or equal to a threshold (Thresh_OBSS).
  • RSSI received signal strength indication
  • Thresh_OBSS a threshold
  • the STA 306 A can be configured to reuse the wireless medium when the RSSI of the transmission from STA 306 B is less than Thresh_OBSS.
  • the STA 306 A can be configured to defer to a transmission from STA 306 B when a received signal strength indication (RSSI) in the preamble of the transmission from STA 306 B is greater than or equal to Thresh_OBSS. Moreover, the STA 306 A can be configured to defer to the transmission from STA 306 B based on an RSSI associated with the intended receiver of the transmission. For example, the STA 306 A can monitor transmissions from other devices and can keep a record of observed RSSI from each device.
  • RSSI received signal strength indication
  • the STA 306 A can further determine whether to defer to the transmission if the previously observed RSSI of the AP 304 B is greater than or equal to a threshold (Thresh_OBSS_RX).
  • Thresh_OBSS can be the same as, or equal to, Thresh_OBSS_RX.
  • STA 306 A can also get the RSSI of the intended receiver of packet, in this case AP 304 B, if AP 304 B sends a clear to send (CTS).
  • CTS clear to send
  • References 141289 discuss looking at the RSSI from the receiver of the intended packet when deciding whether to reuse the wireless medium during the packet transmission itself, various embodiments of the second reuse mode provided herein are not restricted to reuse only for the length of the packet.
  • the STA 306 A can be configured to defer to a transmission from STA 306 B based on the conditions of the first reuse mode and/or the second reuse mode. Additionally, or alternatively, the STA 306 A can be configured to selectively defer or reuse the wireless medium based on additional requirements inside a preamble, an enhanced request-to-send (eRTS), or an enhanced clear-to-send (eCTS).
  • eRTS enhanced request-to-send
  • eCTS enhanced clear-to-send
  • Thresh_OBSS can be a function of one or more preamble parameters (Thresh_OBSS(pp)).
  • Thresh_OBSS can be a function of the MCS.
  • the function can be preset or defined by the AP 304 A.
  • the preamble can state how much interference is tolerated, and the Thresh_OBSS can be computed from that information.
  • the transmitter may lower its power in order to meet the interference requirement.
  • deferral according to the third reuse mode are described in References 141289.
  • eRTS and eCTS which can also be referred to as OBSS request to send (RTS) and OBSS CTS in some embodiments, are described in U.S.
  • the AP 304 A can allow wireless medium reuse for all STAs in the BSS 302 A.
  • the AP 304 A can signal reuse to all STAs.
  • only one of the three reuse modes discussed herein is available.
  • the AP 304 A can signal which reuse mode the STA 306 A should apply.
  • the AP 304 A can further signal all relevant thresholds to the selected reuse mode.
  • the AP 304 A can signal the energy detection (ED) level, OBSS_Thresh, OBSS_Thresh_RX (when different from OBSS_Thresh), OBSS_Thresh(pp) (when the thresholds for OBSS packets are a function of parameters in the preamble, eRTS, and/or eCTS, etc.), an indication of an amount of interference tolerated at nodes as a function of one or more parameters (such as MCS), and so on.
  • ED energy detection
  • APs can selectively allow or disallow reuse of the wireless medium based on a “BSS distance.”
  • the BSS distance can be a metric, such as a ratio, which conveys information about the relatively distance of the STAs in the BSS as compared to the distance to neighboring BSSes which operate on the same channel as the BSS.
  • this distance may be a ratio which conveys information about the relative distance of STA 306 A and STA 306 C, compared to the distance from AP 304 A to AP 304 B.
  • BSS distance the distance between two BSSes
  • the simplest method of doing this may be to simply measure the distance between two APs, such as the APs 304 A and 304 B for example. However, this measurement may be insufficient. As illustrated in FIG. 3 , the APs 304 A and 304 B may be some distance from each other, however, their BSSes may still be contiguous because of how close STA 306 A and STA 306 B are to one another.
  • STA 306 A and STA 306 B Due to the proximity of STA 306 A and STA 306 B, transmissions to or from one of these devices (e.g., STA 306 A) may be interrupted by transmission to or from the other device (e.g., STA 306 B). In some aspects, this proximity may be overlooked if a BSS distance is measured solely by determining a distance between two APs. Accordingly, it may be desirable to have more nuanced and sophisticated measures of BSS distance. Accordingly, more sophisticated BSS distance measurement methods and apparatus may provide additional information about how far apart the STAs in one BSS are from the STAs in another BSS.
  • BSS distance may be determined in a number of ways. It will be appreciated that each of these described options may be “mixed and matched” to some extent. For example, certain measures may use averages, or may use values specific to a STA that is the furthest away from its associated AP. In some aspects, each of the described options may use received signal strength indication (RSSI) measurements instead of distance measurements. In accordance with these aspects, the described formulas may need to be adjusted when RSSI is used instead of distance. Any of the measurement options described herein may be used interchangeably by changing the metric in a suitable manner.
  • RSSI received signal strength indication
  • a first option for calculating a BSS distance may be calculating the distance from the AP in a BSS to the nearest OBSS AP that operates on the same channel, divided by the distance from the AP in the BSS to the furthest STA in the BSS.
  • the APs 304 A and 304 B may be 100 meters apart from one another, and the STA 306 A of BSS 302 A may be the furthest STA from the AP 304 A at a distance of 40 meters from the AP 304 A.
  • the BSS distance measurement may be 100 meters divided by 40 meters, or 2.5.
  • Another option for calculating a BSS distance may be to take an average (or expected value), for each STA in a BSS, of the distance from that STA to the nearest neighboring OBSS AP, divided by the distance from the STA to the AP of its own BSS.
  • STA 306 A may be 60 meters from AP 304 B, which may be the nearest neighboring OBSS AP to STA 306 A.
  • STA 306 A may also be 40 meters from AP 304 A, which is the AP that STA 306 A is associated with.
  • the BSS distance, as calculated for STA 306 A may be 60 meters divided by 40 meters, or 1.5. This ratio may be calculated for each AP in BSS 302 A, and the ratios may then be averaged to calculate a BSS distance for BSS 302 A.
  • Another option for calculating a BSS distance may be to take the distance between station “x” and its nearest neighboring OBSS AP, divided by the distance from station “x” to the BSS AP that it is associated with, where station “x” is the STA in the BSS which is furthest from the AP.
  • STA 306 A may be the station in BSS 302 A which is furthest from AP 304 A.
  • STA 306 A may be 60 meters from the nearest OBSS AP, which may be AP 304 B, and STA 306 A may be 40 meters from the AP in its BSS, which is AP 304 A.
  • this ratio may be calculated by dividing 60 meters by 40 meters, which is 1.5.
  • this formula may be altered by, for example, calculating this ratio for some number of STAs in the BSS. For example, this may be calculated based upon the furthest 1, 2, 4, 5, or some other number of STAs. This ratio may also be calculated for each STA, and the lowest ratio in the BSS may be used, or an average of the lowest 2, 3, 4, 5 or some other number of BSSes.
  • Another method of calculating BSS distance may be based, at least in part, on the BSS distance to a particular OBSS. To get a final BSS distance, these OBSS distances can be averaged, or the minimum value can be taken.
  • the BSS distance of BSS 302 A may be based on the distance between an AP 304 A and its nearest neighboring OBSS AP in the same channel, such as AP 304 B.
  • a BSS distance may be calculated based on the distance from an AP to its nearest neighboring same-channel OBSS AP, divided by the mean distance between the AP and all STAs in that AP's BSS.
  • AP 304 A may be 100 meters from AP 304 B.
  • STA 306 A and 306 C may be 40 and 20 meters from AP 304 A, respectively. If these two STAs are the only STAs in BSS 302 A, the mean distance between AP 304 A and STAs in BSS 302 A may be 30 meters. Thus, this BSS distance may be determined to be 100 meters divided by 30 meters, or 3.33. In some aspects, the denominator of this BSS distance calculation, instead of the mean distance between the AP and all STAs, may be, for example, the distance to the furthest-away STA in the BSS, the median distance between the AP and a STA in the BSS, or another metric.
  • a number of different BSS distances may be calculated in this manner, for each of a number of different neighboring access points.
  • a “final” BSS distance may be determined by averaging these BSS distances for each OBSS, or the minimum BSS distance value may be used.
  • the distance between an AP and a STA, or an AP and another AP may be determined or approximated using RSSI values.
  • RSSI may be a measurement of the power present in a received radio signal, and, in some aspects, a distance between two wireless devices may be inferred based upon this metric. For example, a received signal strength may be compared to a transmitter signal strength of that device (which may be known), in order to estimate a distance to a device based on the RSSI. This comparison may be performed by the AP 304 A, for example. Further, the RSSI value itself may be used directly in the above calculations, provided that the calculations are modified in order to accommodate the use of an RSSI value.
  • the first option for calculating distance may be modified to use an RSSI value by calculating BSS distance as the RSSI (from the AP in the BSS) to the farthest STA in the BSS, divided by the RSSI (from the AP in the BSS) to the nearest OBSS AP on the same channel.
  • RSSI value rather than a distance
  • a linear value of RSSI may be assumed.
  • the BSS distance of the AP 304 A or 304 B can be used.
  • the BSS distance of the STAs can be used (for example, where they report their BSS distance to the AP 304 A).
  • the AP 304 A can be configured to reuse the wireless medium.
  • the AP 304 A can use eRTS/eCTS for high-efficiency (HE) STAs (such as STAs compliant with 802.11ax).
  • HE high-efficiency
  • the devices can be configured to reuse the wireless medium when the RSSI is below a threshold.
  • the AP 304 A can allow wireless medium reuse for some (but not all) STAs in the BSS 302 A.
  • the AP 304 A can signal reuse enablement to a subset of STAs.
  • the AP 304 A can signal a BSS distance threshold to all STAs, and all STAs who have a BSS distance less than the BSS distance threshold can reuse the wireless medium during OBSS transmissions where the OBSS conditions are met.
  • each STA 306 A and 306 C can compute its own BSS distance.
  • the AP 304 A can signal which reuse mode the STA 306 A should apply.
  • the AP 304 A can further signal all relevant thresholds to the selected reuse mode.
  • the AP 304 A can signal the energy detection (ED) level, OBSS_Thresh, OBSS_Thresh_RX (when different from OBSS_Thresh), OBSS_Thresh(pp) (when the thresholds for OBSS packets are a function of parameters in the preamble, eRTS, and/or eCTS, etc.), an indication of an amount of interference tolerated at nodes as a function of one or more parameters (such as MCS), and so on.
  • ED energy detection
  • the thresholds can be a function of each receiving STAs BSS distance. In another embodiment, the thresholds can be a function of each STAs distance to its own AP, for example via Dynamic Sensitivity Control (DSC). Accordingly, each STA can compute its own threshold based on the APs 304 A indications.
  • transmissions that don't reuse the wireless medium can use legacy RTS/CTS, and transmissions that do reuse the wireless medium, can use eRTS/eCTS.
  • enablement of wireless medium reuse during OBSS transmissions can be determined by each STA.
  • the AP 304 A can refrain from signaling threshold.
  • the STAs can be aware of the thresholds in advance, for example they can be stored in a memory.
  • the thresholds can be provided in the OBSS transmission itself.
  • the STA 306 B can provide a minimum interference level in its transmissions. The STA 306 A can determine whether or not to reuse the wireless medium based on the provided minimum interference level. It can also change its power in order to meet the interference requirements.
  • a combination of the above embodiments can be employed.
  • the AP 304 A can decide whether reuse is enabled based on its BSS distance and each STA can compute OBSS_Thresh based on information in the transmission.
  • the AP 304 A can instruct each STA to use DSC, and each STA can compute OBSS_Thresh based on its distance to the AP 304 A.
  • various other combinations of approaches described herein can be employed.
  • the AP 304 A can determine that the nearest AP 304 B is farther than distance D.
  • the AP 304 A can allow reuse for all STAs in its BSS 302 A, so long as STAs do not see any OBSS STAs within distance D 2 .
  • the AP 304 A can send a broadcast IE to STAs 306 A and 306 C, indicating the condition for reuse, and the OBSS_Thresh if they pass the requirement. Accordingly, for STAs that do not see any OBSS STAs within distance D 2 , they can reuse the wireless medium based on OBSS_Thresh provided by the AP.
  • the AP 304 A can determine that the neighbor AP 304 B is farther than distance D.
  • the AP 304 A can broadcast a distance D 1 to the farthest STA 306 C.
  • the AP 304 A can listen to neighbor AP's 304 B broadcasted distance to their farthest STA 306 B. If AP 304 A sees that AP's 304 B farthest STA 306 B is less than D 2 , and if D 1 is less than D 2 , AP 304 A can determine to allow reuse in its BSS 302 A. Accordingly, AP 304 A can send an IE indicating that STAs can reuse the wireless medium, and the OBSS_Thresh. In some embodiments, the AP 304 A and 304 B can signal each other in order to determine a reuse agreement.
  • BSSIDs Basic Service Set Identifiers
  • AP 304 A can have multiple BSSIDs.
  • the AP 304 A can signal to the BSS 302 A which colors should be deferred to.
  • the AP 304 A can indicate all colors of APs within a certain distance and/or RSSI.
  • the AP 304 A can select the same color as nearby APs (such as the AP 304 B).
  • the AP 304 A can provide the color of an OBSS to be deferred to.
  • the colors of all the OBSSs to be deferred to can be included in a management frame.
  • the STA 306 A determines the color of the packet and determines whether the color of the packet matches the color of the BSS 302 A or one of the colors the OBSSs to be deferred to. When the color of the packet matches one of those colors, the STA 306 A observes the packet. Otherwise, the STA 306 A can choose to drop the packet.
  • the AP 304 A can assign the color of the BSS 302 A as the same color of a particular OBSS (e.g., the BSS 302 B) to be deferred to.
  • the AP 304 A can choose not to send any indications to the one or more stations of the BSS 302 A, as the stations are configured to observe packets of the color of the BSS 302 A.
  • the stations of the BSS 302 A can observe the packets from the BSS 302 A and the particular OBSS having the same color.
  • the AP 304 A can further negotiate with the access points of the OBSSs to be deferred to assign the same color to the BSS 302 A and the OBSSs to be deferred to.
  • the AP 304 A can choose not to send any indications to the one or more stations of the BSS 302 A, as the stations are configured to observe packets having the color of the BSS 302 A. As such, the stations of the BSS 302 A can observe the packets from the BSS 302 A and the OBSSs to be deferred to.
  • FIG. 4 shows a flowchart 400 for an exemplary method of reusing a wireless medium that can be employed within the wireless communication system 100 of FIG. 1 .
  • the method can be implemented in whole or in part by the devices described herein, such as the wireless device 202 shown in FIG. 2 .
  • the illustrated method is described herein with reference to the wireless communication system 100 discussed above with respect to FIGS. 1 and 3 , a person having ordinary skill in the art will appreciate that the illustrated method can be implemented by another device described herein, or any other suitable device.
  • the illustrated method is described herein with reference to a particular order, in various embodiments, blocks herein can be performed in a different order, or omitted, and additional blocks can be added.
  • a wireless device determines whether to allow reuse of the wireless medium by one or more stations in a basic service set (BSS). For example, the AP 304 A can decide if reuse is possible based on its BSS distance. In one example, the STA 306 A can compute OBSS_Thresh based on information in a packet received from STA 306 B.
  • BSS basic service set
  • the AP 304 A can determine that the nearest APs (such as AP 304 B) are farther than a distance D.
  • the AP 304 A can determine to allow reuse for all STAs in its BSS 302 A so long as the STAs do not see any OBSS STAs within a distance D 2 .
  • the AP 304 A can send a Broadcast Information Element to the STAs 306 A and 306 C, telling them the requirement for reuse, and the OBSS_Thresh if they pass the requirement.
  • STAs that do not see any OBSS STAs (such as STA 306 B) within distance D 2 they can reuse the wireless medium with OBSS_Thresh as provided by the AP 304 A.
  • the AP 304 A can determine that neighbor APs (such as AP 304 B) are farther than distance D.
  • the AP 304 A can broadcast the distance D 1 to a farthest STA.
  • the AP 304 A can listen to neighbor APs broadcasted distance to their farthest STA. If AP 304 A sees that neighboring AP have a farthest STA less than D 2 , and if D 1 is less than D 2 , the AP 304 A can allow reuse in its BSS 302 A. Accordingly, the AP 304 A can sent an Information Element telling STAs 306 C and 306 A that they can reuse the wireless medium and define OBSS_Thresh. In some embodiments, the AP 304 A can also allow reuse based on an agreement with neighbor AP 304 A.
  • the device transmits, upon determining to allow reuse, indication that reuse of the wireless medium is permitted for stations meeting a criteria.
  • the AP 304 A can transmit a beacon or broadcast IE allowing reuse of the wireless medium for some or all stations within its BSS 302 A.
  • the device can determine one or more reuse parameters.
  • the AP 304 A can determine any of the reuse conditions discussed above with respect to FIG. 3 .
  • the AP 304 A can determine that stations are allowed to reuse the wireless medium when Mode 1 , Mode 2 , Mode 3 (or any combination thereof) rules are satisfied.
  • a plurality of reuse parameters can be different for different stations.
  • different reuse parameters can be determined for, associated with, and communicated to different stations on a per-station basis.
  • the AP 304 A can determine a first set of reuse parameters for the STA 304 B, and can communicate the first set of reuse parameters to the STA 304 B (either directly or in a broadcast message).
  • the AP 304 A can determine a second set of reuse parameters for the STA 304 A, and can communicate the second set of reuse parameters to the STA 304 A (either directly or in a broadcast message).
  • different reuse parameters can be determined for, associated with, and communicated to different groups of stations on a per-group basis.
  • the AP 304 A can determine a first set of reuse parameters for a first group of stations including the STA 304 A and the STA 304 B, and can communicate the first set of reuse parameters to the STA 304 A and the STA 304 B (either directly or in a broadcast message).
  • the AP 304 A can determine a second set of reuse parameters for a second group of stations (including one or more STAs not shown), and can communicate the second set of reuse parameters to the second group of stations (either directly or in a broadcast message).
  • the device can transmit the one or more reuse parameters.
  • the AP 304 A can transmit a beacon or broadcast IE defining the reuse parameters to some or all stations within its BSS 302 A.
  • the reuse parameters can be transmitted with the indication that reuse is permitted. In other embodiments, the reuse parameters can be transmitted separately.
  • the method can further include selecting a reuse mode comprising one or more of the following conditions either alone or in combination: stations can be permitted to reuse the wireless medium when detecting an overlapping BSS (OBSS) transmission from a transmitting device that can have a received signal strength indication (RSSI) less than a first threshold, stations can be permitted to reuse the wireless medium when a destination device of the OBSS transmission can have an RSSI less than a second threshold, and stations can be permitted to reuse the wireless medium when the transmitting device and/or intended receiving device can have an RSSI less than a dynamic threshold that can be a function of one or more preamble parameters.
  • the method can further include transmitting an indication of the selected reuse mode.
  • the first threshold and the second threshold can be the same.
  • the dynamic threshold can be a function of a transmit power of the transmitting device and/or of an intended receiver.
  • the one or more reuse parameters can include one or more of: a transmit power, an energy detection (ED) level, a transmitter received signal strength indication (RSSI) threshold, an intended receiver RSSI threshold, a RSSI threshold function based on one or more preamble parameters, and an indication of an amount of interference tolerated at nodes as a function of one or more parameters.
  • determining whether to allow reuse of the wireless medium can be based on a BSS distance of an access point and/or a BSS distance of the one or more stations.
  • the method can further include determining to allow reuse of the wireless medium and using enhanced request-to-send and/or enhanced clear-to-send transmissions.
  • the criteria can define that all stations in the BSS can be allowed to reuse the wireless medium.
  • the criteria can define that a subset of stations in the BSS can be allowed to reuse the wireless medium.
  • the subset of stations can be based on their BSS distance.
  • the access point can have multiple BSS identifiers, the method further comprising signaling one or more colors to which the one or more stations should defer, or selecting the same color as a neighboring access point.
  • the method shown in FIG. 4 can be implemented in a wireless device that can include a determining circuit and a transmitting circuit.
  • a wireless device can have more components than the simplified wireless device described herein.
  • the wireless device described herein includes only those components useful for describing some prominent features of implementations within the scope of the claims.
  • the determining circuit can be configured to determine whether reuse is allowed, and/or determine the applicable reuse parameters. In some embodiments, the determining circuit can be configured to perform at least one of blocks 410 and 430 of FIG. 4 .
  • the determining circuit can include one or more of the processor 204 ( FIG. 2 ), the memory 206 ( FIG. 2 ), and the DSP 220 ( FIG. 2 ). In some implementations, means for determining can include the determining circuit.
  • the transmitting circuit can be configured to transmit the indication that reuse is allowed and/or the reuse parameters. In some embodiments, the transmitting circuit can be configured to perform at least one of blocks 420 and 440 of FIG. 4 .
  • the transmitting circuit can include one or more of the transmitter 210 ( FIG. 2 ), the antenna 216 ( FIG. 2 ), and the transceiver 214 ( FIG. 2 ). In some implementations, means for transmitting can include the transmitting circuit.
  • the wireless device can include a selecting circuit.
  • the selecting circuit can be configured to select a reuse mode.
  • the selecting circuit can include one or more of the processor 204 ( FIG. 2 ), the memory 206 ( FIG. 2 ), and the DSP 220 ( FIG. 2 ).
  • means for selecting can include the selecting circuit.
  • FIG. 5 shows a flowchart 500 for an exemplary method of reusing a wireless medium that can be employed within the wireless communication system 100 of FIG. 1 .
  • the method can be implemented in whole or in part by the devices described herein, such as the wireless device 202 shown in FIG. 2 .
  • the illustrated method is described herein with reference to the wireless communication system 100 discussed above with respect to FIGS. 1 and 3 , a person having ordinary skill in the art will appreciate that the illustrated method can be implemented by another device described herein, or any other suitable device.
  • the illustrated method is described herein with reference to a particular order, in various embodiments, blocks herein can be performed in a different order, or omitted, and additional blocks can be added.
  • a wireless device can detect an overlapping basic service set (OBSS) transmission.
  • OBSS overlapping basic service set
  • the STA 306 A can detect an OBSS transmission from the STA 306 B.
  • the wireless device can determine whether to reuse the wireless medium. For example, the STA 306 A can receive in indication from the AP 304 A that reuse of the wireless medium is allowed. In another embodiment, the STA 306 A can unilaterally determine that reuse of the wireless medium is allowed, for example, based on DSC and/or information in the transmission from the STA 306 B.
  • the wireless device can determine one or more reuse parameters.
  • the STA 306 A can receive the reuse parameters from the AP 304 A via a beacon or broadcast IE.
  • the STA 306 A can unilaterally determine the reuse parameters, for example, based on parameters that are hard coded or stored in memory, and/or information in the transmission from the STA 306 B.
  • a plurality of reuse parameters can be different for different stations.
  • different reuse parameters can be determined for, associated with, and/or received at different stations on a per-station basis.
  • the STA 306 C can receive a first set of reuse parameters from the AP 304 A via a beacon or broadcast IE.
  • the STA 306 A can receive a second set of reuse parameters from the AP 304 A via a beacon or broadcast IE.
  • the STAs 306 A and 306 C can each determine their own different reuse parameters unilaterally.
  • different reuse parameters can be determined for, associated with, and/or received at different groups of stations on a per-group basis.
  • a first group of stations including the STA 304 A and the STA 304 , can receive a first set of reuse parameters from the AP 304 A via a beacon or broadcast IE.
  • a second group of stations (including one or more STAs not shown) can receive a second set of reuse parameters from the AP 304 A via a beacon or broadcast IE.
  • the wireless device can selectively transmit a message based on said determining whether to reuse the wireless medium and the one or more reuse parameters.
  • the STA 306 A can compare the reuse parameters (such as OBSS_Thresh) to the transmission from the STA 306 B.
  • the STA 306 A can transmit the message when the RSSI of the transmission from the STA 306 B is less than the RSSI defined in OBSS_Thresh.
  • the method shown in FIG. 5 can be implemented in a wireless device that can include a detecting circuit, a determining circuit, and a transmitting circuit.
  • a wireless device can have more components than the simplified wireless device described herein.
  • the wireless device described herein includes only those components useful for describing some prominent features of implementations within the scope of the claims.
  • the detecting circuit can be configured to detect the OBSS transmission. In some embodiments, the detecting circuit can be configured to perform at least block 510 of FIG. 5 .
  • the detecting circuit can include one or more of the receiver 212 ( FIG. 2 ), the DSP 220 , the processor 204 , the memory 206 , the signal detector 218 , the antenna 216 ( FIG. 2 ), and the transceiver 214 ( FIG. 2 ).
  • means for detecting can include the detecting circuit.
  • the determining circuit can be configured to determine whether reuse is allowed, and/or determine the applicable reuse parameters. In some embodiments, the determining circuit can be configured to perform at least one of blocks 520 and 530 of FIG. 5 .
  • the determining circuit can include one or more of the processor 204 ( FIG. 2 ), the memory 206 ( FIG. 2 ), and the DSP 220 ( FIG. 2 ). In some implementations, means for determining can include the determining circuit.
  • the transmitting circuit can be configured to selectively transmit a message reusing the wireless medium. In some embodiments, the transmitting circuit can be configured to perform at least one of blocks 520 and 540 of FIG. 5 .
  • the transmitting circuit can include one or more of the transmitter 210 ( FIG. 2 ), the antenna 216 ( FIG. 2 ), and the transceiver 214 ( FIG. 2 ). In some implementations, means for transmitting can include the transmitting circuit.
  • the wireless device can include a selecting circuit.
  • the selecting circuit can be configured to select a reuse mode.
  • the selecting circuit can include one or more of the processor 204 ( FIG. 2 ), the memory 206 ( FIG. 2 ), and the DSP 220 ( FIG. 2 ).
  • means for selecting can include the selecting circuit.
  • the wireless device can include a receiving circuit.
  • the receiving circuit can be configured to receiving the reuse indication and/or reuse parameters, for example as a beacon or IE from the AP.
  • the receiving circuit can include one or more of the receiver 212 ( FIG. 2 ), the DSP 220 , the antenna 216 ( FIG. 2 ), and the transceiver 214 ( FIG. 2 ).
  • means for receiving can include the receiving circuit.
  • a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members.
  • “at least one of: a, b, or c” is intended to cover: a, b, c, a-b, a-c, b-c, and a-b-c.
  • the terms “and” or “or” may be interchangeable, and may be interpreted as “and/or” (e.g., anywhere from one to all of the items in a list).
  • any suitable means capable of performing the operations such as various hardware and/or software component(s), circuits, and/or module(s).
  • any operations illustrated in the Figures can be performed by corresponding functional means capable of performing the operations.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array signal
  • PLD programmable logic device
  • a general purpose processor can be a microprocessor, but in the alternative, the processor can be any commercially available processor, controller, microcontroller or state machine.
  • a processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • the functions described can be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions can be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media can be any available media that can be accessed by a computer.
  • such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • any connection is properly termed a computer-readable medium.
  • the software is transmitted from a web site, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave
  • the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium.
  • Disk and disc includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers.
  • computer readable medium can comprise non-transitory computer readable medium (e.g., tangible media).
  • computer readable medium can comprise transitory computer readable medium (e.g., a signal). Combinations of the above should also be included within the scope of computer-readable media.
  • modules and/or other appropriate means for performing the methods and techniques described herein can be downloaded and/or otherwise obtained by a user terminal and/or base station as applicable.
  • a user terminal and/or base station can be coupled to a server to facilitate the transfer of means for performing the methods described herein.
  • various methods described herein can be provided via storage means (e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or floppy disk, etc.), such that a user terminal and/or base station can obtain the various methods upon coupling or providing the storage means to the device.
  • storage means e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or floppy disk, etc.
  • CD compact disc
  • floppy disk etc.
  • any other suitable technique for providing the methods and techniques described herein to a device can be utilized.
US15/239,656 2015-09-15 2016-08-17 Systems and methods for reuse of wireless communication resources in neighboring communication networks Abandoned US20170078887A1 (en)

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US15/239,656 US20170078887A1 (en) 2015-09-15 2016-08-17 Systems and methods for reuse of wireless communication resources in neighboring communication networks
AU2016323633A AU2016323633A1 (en) 2015-09-15 2016-08-18 Systems and methods for reuse of wireless communication resources in neighboring communication networks
CN201680052919.2A CN108029124B (zh) 2015-09-15 2016-08-18 用于对相邻通信网络中的无线通信资源的重用的系统和方法
CA2994179A CA2994179C (en) 2015-09-15 2016-08-18 Systems and methods for reuse of wireless communication resources in neighboring communication networks
NZ739346A NZ739346A (en) 2015-09-15 2016-08-18 Systems and methods for reuse of wireless communication resources in neighboring communication networks
KR1020187010450A KR102515534B1 (ko) 2015-09-15 2016-08-18 이웃하는 통신 네트워크들에서의 무선 통신 자원들의 재사용을 위한 시스템들 및 방법들
MYPI2018700289A MY187876A (en) 2015-09-15 2016-08-18 Systems and methods for reuse of wireless communication resources in neighboring communication networks
RU2018108590A RU2721747C2 (ru) 2015-09-15 2016-08-18 Система и способ для повторного использования ресурсов беспроводной связи в соседних сетях связи
JP2018513485A JP2018527840A (ja) 2015-09-15 2016-08-18 近隣の通信ネットワークにおけるワイヤレス通信リソースの再利用のためのシステムおよび方法
CN202210381227.XA CN114584231B9 (zh) 2015-09-15 2016-08-18 用于对相邻通信网络中的无线通信资源的重用的系统和方法
SG11201800603PA SG11201800603PA (en) 2015-09-15 2016-08-18 Systems and methods for reuse of wireless communication resources in neighboring communication networks
EP16760260.6A EP3351045A1 (en) 2015-09-15 2016-08-18 Systems and methods for reuse of wireless communication resources in neighboring communication networks
PCT/US2016/047594 WO2017048453A1 (en) 2015-09-15 2016-08-18 Systems and methods for reuse of wireless communication resources in neighboring communication networks
MX2018002896A MX2018002896A (es) 2015-09-15 2016-08-18 Sistemas y metodos para reutilizar recursos de comunicacion inalambrica en redes de comunicacion vecinas.
IL257075A IL257075A (en) 2015-09-15 2018-01-22 Systems and methods for the reuse of wireless communication resources in neighboring communication networks
PH12018500237A PH12018500237A1 (en) 2015-09-15 2018-01-30 Systems and methods for reuse of wireless communication resources in neighboring communication networks
SA518390938A SA518390938B1 (ar) 2015-09-15 2018-02-15 أنظمة وطرق لإعادة استخدام مصادر اتصال لاسلكية في شبكات اتصال مجاورة
CL2018000612A CL2018000612A1 (es) 2015-09-15 2018-03-09 Sistemas y métodos para reutilizar recursos de comunicación inalámbrica en redes de comunicación vecinas
CONC2018/0002594A CO2018002594A2 (es) 2015-09-15 2018-03-13 Sistemas y métodos para la reutilización de recursos de comunicación inalámbrica en redes de comunicación cercanas
ZA2018/01751A ZA201801751B (en) 2015-09-15 2018-03-14 Systems and methods for reuse of wireless communication resources in neighboring communication networks
HK18113890.4A HK1254805A1 (zh) 2015-09-15 2018-10-31 用於對相鄰通信網絡中的無線通信資源的重用的系統和方法
US16/516,495 US10666368B2 (en) 2015-09-15 2019-07-19 Systems and methods for reuse of wireless communication resources in neighboring communication networks
JP2020209219A JP7080961B2 (ja) 2015-09-15 2020-12-17 近隣の通信ネットワークにおけるワイヤレス通信リソースの再利用のためのシステムおよび方法
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10356815B2 (en) * 2016-04-15 2019-07-16 Marvell World Trade Ltd. Clear channel assessment for co-located wireless networks
US10666368B2 (en) 2015-09-15 2020-05-26 Qualcomm Incorporated Systems and methods for reuse of wireless communication resources in neighboring communication networks
CN111788859A (zh) * 2018-03-26 2020-10-16 高通股份有限公司 用于在无线式无线电接入技术中提供全双工通信的技术
US10986505B2 (en) * 2018-08-29 2021-04-20 Qualcomm Incorporated Spatial reuse for WLAN networks
US11191019B2 (en) * 2015-05-01 2021-11-30 Sony Corporation Information processing device, information processing method, and program
WO2021262896A1 (en) * 2020-06-24 2021-12-30 Qualcomm Incorporated Channel occupancy time sharing based on received signal strength
US11219083B2 (en) 2017-12-15 2022-01-04 Google Llc Establishing and terminating wireless links
US11234133B2 (en) * 2014-08-21 2022-01-25 Huawei Technologies Co., Ltd. Frequency reuse method and related apparatus
US11412545B2 (en) * 2016-09-20 2022-08-09 Toshiba Electronic Devices & Storage Corporation Wireless communication device, wireless communication terminal, and wireless communication method
AU2018297314B2 (en) * 2017-07-07 2023-06-01 Qualcomm Incorporated Coordinated uplink (UL) multi-user multiple-input-multiple-output (MU-MIMO) communication

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3045008B1 (en) * 2013-09-13 2024-02-21 InterDigital Patent Holdings, Inc. Clear channel assessment (cca) threshold adaptation method
WO2017195458A1 (ja) * 2016-05-13 2017-11-16 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 無線局および通信方法
WO2023199491A1 (ja) * 2022-04-14 2023-10-19 日本電信電話株式会社 無線通信装置、無線通信方法及び無線通信システム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170006616A1 (en) * 2015-07-03 2017-01-05 Nokia Technologies Oy Sensitivity tuning in wireless networks
US20170294949A1 (en) * 2014-09-11 2017-10-12 Interdigital Patent Holdings, Inc. Method and apparatus for spatial sharing in wireless local area network (wlan) systems

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6496700B1 (en) 1996-04-04 2002-12-17 At&T Wireless Services, Inc. Method for determining organization parameters in a wireless communication system
US8670390B2 (en) 2000-11-22 2014-03-11 Genghiscomm Holdings, LLC Cooperative beam-forming in wireless networks
US7206840B2 (en) * 2001-05-11 2007-04-17 Koninklike Philips Electronics N.V. Dynamic frequency selection scheme for IEEE 802.11 WLANs
EP1396111B1 (en) * 2001-05-15 2006-04-26 Koninklijke Philips Electronics N.V. Overlapping network allocation vector (onav) for avoiding collision in the ieee 802.00 wlan operating under hcf
SE0300973D0 (sv) 2003-04-01 2003-04-01 Ericsson Telefon Ab L M Improvements in or relating to compression of messages in telecommunication services
KR100896399B1 (ko) 2004-05-05 2009-05-08 콸콤 인코포레이티드 송신 인스턴스 스케줄링 장치
US8306003B2 (en) * 2005-11-09 2012-11-06 Texas Instruments Incorporated Throughput performance in the presence of in-band interference in a CSMA based network
CO5721037A2 (es) 2005-12-26 2007-01-31 Key Zoom Technologies De Colombia Ltda Sistema de administracion, medicion y control bidireccional e inalambrico de consumo de energia electrica y otros servicios
EP1804424A1 (en) * 2005-12-27 2007-07-04 THOMSON Licensing Method for dynamically selecting a channel in a wireless local area network
US8295243B2 (en) 2006-08-21 2012-10-23 Qualcomm Incorporated Method and apparatus for random access in an orthogonal multiple-access communication system
EP1940189B1 (en) 2006-12-27 2020-04-15 Samsung Electronics Co., Ltd. Apparatus and method for computing a resource allocation of a relay station
WO2008155764A2 (en) 2007-06-18 2008-12-24 Duolink Ltd. Wireless network architecture and method for base station utilization
KR20100092446A (ko) 2007-10-19 2010-08-20 지티이 (유에스에이) 인크. 고차 주파수 재사용 네트워크에서의 개선된 아이들 모드 절전을 위한 동기화된 멀티-ｂｓ ｍｂｓ
US9014636B2 (en) 2009-03-20 2015-04-21 Centre Of Excellence In Wireless Technology Cognitive interference management in wireless networks with relays, macro cells, micro cells, pico cells and femto cells
TWI486084B (zh) * 2011-06-24 2015-05-21 Accton Technology Corp Wireless connection point and wireless mobile device connection control method
US9204371B2 (en) * 2011-11-23 2015-12-01 Marvell World Trade Ltd. 802.11 restricted access windows
EP3273743A1 (en) 2012-03-01 2018-01-24 Interdigital Patent Holdings, Inc. Multi-user parallel channel access in wlan systems
CN104285475A (zh) 2012-05-03 2015-01-14 交互数字专利控股公司 在无线局域网中的增强型主动扫描
US9204451B2 (en) * 2013-03-06 2015-12-01 Broadcom Corporation Clear channel assessment (CCA) levels within wireless communications
CN103260168A (zh) * 2013-04-22 2013-08-21 东南大学 一种适用于集中式无线局域网的空分干扰抑制方法
US9622262B2 (en) 2013-05-03 2017-04-11 Qualcomm Incorporated Transmit opportunity (TXOP) based channel reuse
US20140328264A1 (en) * 2013-05-03 2014-11-06 Qualcomm Incorporated Systems and methods for coordination messaging using high efficiency wifi
US9544904B2 (en) 2013-05-03 2017-01-10 Qualcomm Incorporated Systems and methods for reuse of a wireless medium for high efficiency wifi
US9596702B2 (en) * 2013-06-19 2017-03-14 Dsp Group Ltd. Dynamic sensitivity control for wireless devices
US9838940B2 (en) * 2013-09-18 2017-12-05 Qualcomm, Incorporated Packet transmission deferral based on BSSID information
US9763262B2 (en) * 2013-11-01 2017-09-12 Qualcomm Incorporated Wireless communications deferral based on transmission opportunity
US9521587B2 (en) * 2013-12-11 2016-12-13 Futurewei Technologies, Inc. System and method for determining a clear channel assessment threshold
WO2015088160A1 (ko) * 2013-12-12 2015-06-18 엘지전자 주식회사 전력 정보 기반 간섭 제어 신호 송수신 방법 및 이를 위한 장치
WO2015112780A1 (en) * 2014-01-24 2015-07-30 Mediatek Singapore Pte. Ltd. Adaptive cca and tx power level adjustment for dense deployment of wireless networks
KR101931703B1 (ko) 2014-02-10 2018-12-21 엘지전자 주식회사 무선랜에서 프레임을 전송하는 방법 및 장치
US9854607B1 (en) * 2014-02-10 2017-12-26 Marvell International Ltd. Method and apparatus for performing dynamic clear channel assessent (CCA), and distinguishing wireless communications among different basic service sets
US9661656B2 (en) 2014-02-14 2017-05-23 Intel IP Corporation Enhanced channel access mechanism for improving performance in dense WiFi environments
CN104202755B (zh) * 2014-03-03 2019-08-30 中兴通讯股份有限公司 一种信道检测方法、终端及系统
US10117270B2 (en) * 2014-05-01 2018-10-30 Lg Electronics Inc. Method for improving space reuse rate in wireless LAN system and apparatus for same
WO2015174725A1 (ko) * 2014-05-13 2015-11-19 주식회사 윌러스표준기술연구소 클리어 채널 할당을 위한 무선 통신 방법 및 이를 이용한 무선 통신 단말
EP4311361A3 (en) * 2015-01-09 2024-05-01 InterDigital Patent Holdings, Inc. Bss-color enhanced transmission in wlans (bss-cet)
US10701730B2 (en) 2015-06-05 2020-06-30 Lg Electronics Inc. Method for transmitting data in wireless communication system and apparatus therefor
US10104664B2 (en) * 2015-06-16 2018-10-16 Mediatek Inc. Enhanced channel contention schemes for high-efficiency WLAN
US10356624B2 (en) * 2015-09-10 2019-07-16 Intel IP Corporation [11AX] conditions for spatial reuse using joint TPC and CCA
US10123352B2 (en) * 2015-09-14 2018-11-06 Nokia Technologies Oy Fairness in wireless networks with adaptive clear channel assessment thresholds
US20170078887A1 (en) 2015-09-15 2017-03-16 Qualcomm Incorporated Systems and methods for reuse of wireless communication resources in neighboring communication networks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170294949A1 (en) * 2014-09-11 2017-10-12 Interdigital Patent Holdings, Inc. Method and apparatus for spatial sharing in wireless local area network (wlan) systems
US20170006616A1 (en) * 2015-07-03 2017-01-05 Nokia Technologies Oy Sensitivity tuning in wireless networks

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11234133B2 (en) * 2014-08-21 2022-01-25 Huawei Technologies Co., Ltd. Frequency reuse method and related apparatus
US11191019B2 (en) * 2015-05-01 2021-11-30 Sony Corporation Information processing device, information processing method, and program
US11659488B2 (en) 2015-05-01 2023-05-23 Sony Group Corporation Information processing device, information processing method, and program
US10666368B2 (en) 2015-09-15 2020-05-26 Qualcomm Incorporated Systems and methods for reuse of wireless communication resources in neighboring communication networks
US10356815B2 (en) * 2016-04-15 2019-07-16 Marvell World Trade Ltd. Clear channel assessment for co-located wireless networks
US11412545B2 (en) * 2016-09-20 2022-08-09 Toshiba Electronic Devices & Storage Corporation Wireless communication device, wireless communication terminal, and wireless communication method
US11903028B2 (en) 2016-09-20 2024-02-13 International Semiconductor Group Wireless communication device, wireless communication terminal, and wireless communication method
AU2018297314B2 (en) * 2017-07-07 2023-06-01 Qualcomm Incorporated Coordinated uplink (UL) multi-user multiple-input-multiple-output (MU-MIMO) communication
US11219083B2 (en) 2017-12-15 2022-01-04 Google Llc Establishing and terminating wireless links
US11690125B2 (en) 2017-12-15 2023-06-27 Google Llc Establishing and terminating wireless links
CN111788859A (zh) * 2018-03-26 2020-10-16 高通股份有限公司 用于在无线式无线电接入技术中提供全双工通信的技术
US10986505B2 (en) * 2018-08-29 2021-04-20 Qualcomm Incorporated Spatial reuse for WLAN networks
US11832109B2 (en) 2018-08-29 2023-11-28 Qualcomm Incorporated Spatial reuse for WLAN networks
WO2021262896A1 (en) * 2020-06-24 2021-12-30 Qualcomm Incorporated Channel occupancy time sharing based on received signal strength

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