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NZ743290B2 - Methods and apparatus for selecting enhanced distributed channel access parameters for different stations - Google Patents
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NZ743290B2 - Methods and apparatus for selecting enhanced distributed channel access parameters for different stations - Google Patents

Methods and apparatus for selecting enhanced distributed channel access parameters for different stations Download PDF

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Publication number
NZ743290B2
NZ743290B2 NZ743290A NZ74329017A NZ743290B2 NZ 743290 B2 NZ743290 B2 NZ 743290B2 NZ 743290 A NZ743290 A NZ 743290A NZ 74329017 A NZ74329017 A NZ 74329017A NZ 743290 B2 NZ743290 B2 NZ 743290B2
Authority
NZ
New Zealand
Prior art keywords
edca parameter
subset
selecting
edca
wireless devices
Prior art date
Application number
NZ743290A
Other versions
NZ743290A (en
Inventor
Alfred Asterjadhi
Gwendolyn Denise Barriac
George Cherian
Simone Merlin
Yan Zhou
Original Assignee
Qualcomm Incorporated
Filing date
Publication date
Priority claimed from US15/405,218 external-priority patent/US10271353B2/en
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Publication of NZ743290A publication Critical patent/NZ743290A/en
Publication of NZ743290B2 publication Critical patent/NZ743290B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel 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
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • 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

Abstract

some aspects, a method for configuring channel access parameters in a wireless communication system includes determining, at an access point, an enhanced distributed channel access (EDCA) parameter for a first subset of stations of a plurality of stations, the first subset of stations capable of transmitting multi-user uplink transmissions. The method further includes generating an information element including the EDCA parameter. The method further includes transmitting the information element such that the information element is decodable by the first subset of stations and not by a second subset of stations of the plurality of stations.

Claims (16)

1. A method for selecting channel access parameters for communication in a network, the method comprising: selecting, at a first wireless device, a first enhanced distributed channel access (EDCA) parameter for communication with a first subset of wireless devices that do not have the capability to transmit multi-user uplink transmissions; selecting, at the first wireless device, a second EDCA parameter for communication with a second subset of wireless devices, wherein selecting the second EDCA parameter is based on: a capability of the first wireless device to receive scheduled uplink transmissions, and a capability of the second subset of wireless devices to transmit multi-user uplink transmissions; generating an EDCA parameter set information element including the second EDCA parameter; and transmitting the EDCA parameter set information element in a physical layer convergence procedure (PLCP) protocol data unit (PPDU) that is only decodable by the second subset of wireless devices and not by the first subset of wireless devices.
2. The method of claim 1, further comprising: determining whether the selected second EDCA parameter satisfies a performance characteristic, and in response to determining that the selected second EDCA fails to satisfy the performance characteristic, selecting a third EDCA parameter.
3. The method of claim 2, wherein selecting the third EDCA parameter is based on a previous transmission from a second wireless device of the second subset of wireless devices to the first wireless device.
4. The method of claim 2, wherein selecting the third EDCA parameter is based on receiving an immediate response to the EDCA parameter set information element transmitted to the second subset of wireless devices.
5. The method of claim 2, wherein selecting the third EDCA parameter is based on failure to receive a response from a second wireless device of the second subset of wireless devices after transmitting the EDCA parameter set information element to the second subset of wireless devices a number of times.
6. The method of claim 1, wherein the EDCA parameter set information element comprises a variable length of bits, wherein the variable length of bits is based on at least one of a type of signal and a service provider.
7. The method of claim 1, wherein selecting the second EDCA parameter further comprises selecting the second EDCA parameter based on a type of the second subset of wireless devices.
8. The method of claim 1, wherein the first and second EDCA parameters comprise at least one of a minimum contention window (CWmin), a maximum contention window (CWmax), a transmit opportunity (TXOP), a transmission opportunity limit (TXOP limit), and an arbitration inter frame space (AIFS).
9. The method of claim 1, wherein the first wireless device appends one or more rules for communicating with the first wireless device to the second EDCA parameter.
10. The method of claim 1, wherein the EDCA parameter set information element includes at least one of an element identification field, a length field and an EDCA parameter field.
11. An apparatus for wireless communication, comprising: means for selecting, at a first wireless device, a first enhanced distributed channel access (EDCA) parameter for communication with a first subset of wireless devices that do not have the capability to transmit multi-user uplink transmissions; means for selecting, at the first wireless device, a second EDCA parameter for communication with a second subset of wireless devices, wherein selecting the EDCA parameter is based on: a capability of the first wireless device to receive scheduled uplink transmissions uplink transmissions, and a capability of the second subset of wireless devices to transmit multi-user uplink transmissions; means for generating an EDCA parameter set information element including the second EDCA parameter; and means for transmitting the EDCA parameter set information element in a physical layer convergence procedure (PLCP) protocol data unit (PPDU) that is only decodable by the second subset of wireless devices and not by the first subset of wireless devices.
12. The apparatus of claim 11, wherein means for selecting the second EDCA parameter further comprises selecting the second EDCA parameter based on a type of the second subset of wireless devices.
13. The apparatus of claim 11, wherein the first and second EDCA parameters comprise at least one of a minimum contention window (CWmin), a maximum contention window (CWmax), a transmit opportunity (TXOP), a transmission opportunity limit (TXOP limit), and an arbitration inter frame space (AIFS).
14. The apparatus of claim 11, wherein the first wireless device appends one or more rules for communicating with the first wireless device to the second EDCA parameter.
15. The apparatus of claim 11, wherein the EDCA parameter set information element includes at least one of an element identification field, a length field, and an EDCA parameter field.
16. A non-transitory computer-readable medium comprising code that, when executed, causes an apparatus to perform a method according to any of claims 1 to 10.
NZ743290A 2017-01-13 Methods and apparatus for selecting enhanced distributed channel access parameters for different stations NZ743290B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662278268P 2016-01-13 2016-01-13
US15/405,218 US10271353B2 (en) 2016-01-13 2017-01-12 Methods and apparatus for selecting enhanced distributed channel access parameters for different stations
PCT/US2017/013451 WO2017123952A1 (en) 2016-01-13 2017-01-13 Methods and apparatus for selecting enhanced distributed channel access parameters for different stations

Publications (2)

Publication Number Publication Date
NZ743290A NZ743290A (en) 2024-07-05
NZ743290B2 true NZ743290B2 (en) 2024-10-08

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