System and method for OFDMA resource management in WLAN
First Claim
1. A method by a station (STA) for orthogonal frequency-division multiple access (OFDMA) in a wireless local area network (WLAN), the method comprising:
- sending, to a network controller, information regarding at least one of scheduling transmissions for the STA, readiness of transmission, and preference of transmission;
receiving, from the network controller, a signaling of control parameters, the control parameters determining transmission resources for OFDMA communications of the STA; and
exchanging, between the STA and an access point (AP), OFDMA communications for at least one of downlink and uplink transmissions in accordance with the control parameters, wherein the OFDMA communications exchanged between the STA and the AP are synchronized with one or more other STAs in accordance with the control parameters,wherein the signaling is received in an OFDMA sub-header of a media access control (MAC) data frame, and wherein the OFDMA sub-header is dedicated as an OFDMA control field for carrying OFDMA control information to STAs.
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Accused Products
Abstract
Embodiments are provided for implementing a control function in a Wireless Local Area Network (WLAN) for allocation of resources to multiple stations (STAs) to enable Orthogonal Frequency Division Multiple Access (OFDMA) communications. An embodiment method includes determining a plurality of transmission resources for OFDMA communications of a plurality of STAs in the WLAN. The determination includes allocating a plurality of subcarriers to the STAs. The method further includes signaling the determined transmission resources to the STAs. The signaling of the transmission resources is piggybacked on at least one of data and management frames, such as in a sub-header of a MAC frame, or is an explicit signaling, such as in one or more dedicated fields of a traffic specification information element. The transmission resources for OFDMA communications allow simultaneous transmissions of the STAs in the WLAN.
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Citations
23 Claims
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1. A method by a station (STA) for orthogonal frequency-division multiple access (OFDMA) in a wireless local area network (WLAN), the method comprising:
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sending, to a network controller, information regarding at least one of scheduling transmissions for the STA, readiness of transmission, and preference of transmission; receiving, from the network controller, a signaling of control parameters, the control parameters determining transmission resources for OFDMA communications of the STA; and exchanging, between the STA and an access point (AP), OFDMA communications for at least one of downlink and uplink transmissions in accordance with the control parameters, wherein the OFDMA communications exchanged between the STA and the AP are synchronized with one or more other STAs in accordance with the control parameters, wherein the signaling is received in an OFDMA sub-header of a media access control (MAC) data frame, and wherein the OFDMA sub-header is dedicated as an OFDMA control field for carrying OFDMA control information to STAs. - View Dependent Claims (2, 3)
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4. A station (STA) supporting Orthogonal Frequency Division Multiple Access (OFDMA) in a wireless local area network (WLAN), the STA comprising:
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a processor; and a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to; send, to a network controller, information regarding at least one of scheduling transmissions for the STA, readiness of transmission, and preference of transmission; receive, from the network controller, a signaling of control parameters, the control parameters determining transmission resources for OFDMA communications of the STA; and exchange, between the STA and an access point (AP), OFDMA communications for at least one of downlink and uplink transmissions in accordance with the control parameters, wherein the OFDMA communications exchanged between the STA and the AP are synchronized with one or more other STAs in accordance with the control parameters, wherein the signaling is received in an OFDMA sub-header of a media access control (MAC) data frame, and wherein the OFDMA sub-header is dedicated as an OFDMA control field for carrying OFDMA control information to STAs. - View Dependent Claims (5)
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6. A method for managing orthogonal frequency-division multiple access (OFDMA) resources in a wireless local area network (WLAN), the method comprising:
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signaling, by a network component, transmission resources for OFDMA communications for at least one of downlink transmissions and uplink transmissions between an access point (AP) and a plurality of stations (STAs) in the WLAN, wherein the transmission resources are signaled in a media access control (MAC) data frame, wherein signaling is carried in an OFDMA sub-header of the MAC data frame, and wherein the OFDMA sub-header is dedicated as an OFDMA control field for carrying OFDMA control information to the STAs. - View Dependent Claims (7, 8, 9, 10)
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11. A method for managing orthogonal frequency-division multiple access (OFDMA) resources in a wireless local area network (WLAN), the method comprising:
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signaling, by a network component, control parameters for establishing and synchronizing OFDMA communications for at least one of downlink transmissions and uplink transmissions between an access point (AP) and a plurality of stations (STAs) in the WLAN, wherein the control parameters are signaled in a media access control (MAC) data frame, wherein signaling is carried in an OFDMA sub-header of the MAC data frame, and wherein the OFDMA sub-header is dedicated as an OFDMA control field for carrying OFDMA control information to the STAs. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A network component for managing Orthogonal Frequency Division Multiple Access (OFDMA) resources in a wireless local area network (WLAN), the network component comprising:
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a processor; and a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to; signal transmission resources for OFDMA communications for at least one of downlink transmissions and uplink transmissions between an access point (AP) and a plurality of stations (STAs) in the WLAN, wherein the transmission resources are signaled in a media access control (MAC) data frame, wherein signaling is carried in an OFDMA sub-header of the MAC data frame, and wherein the OFDMA sub-header is dedicated as an OFDMA control field for carrying OFDMA control information to the STAs. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification