Access point and apparatus used therein
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- INTEL CORP
- Filing Date
- 2024-03-27
- Publication Date
- 2026-05-20
AI Technical Summary
Current beacon frames in wireless communication systems, especially in enterprise scenarios with Multiple Basic Service Set Identifiers (BSSIDs), have become too large, leading to inefficiencies and a lack of comprehensive solutions to manage discovery and operational information for non-AP stations effectively.
An enhanced beacon frame is proposed that includes discovery information associated with a Basic Service Set (BSS) managed by an Ultra High Reliability (UHR) Access Point (AP) and dynamic operational information needed for non-AP stations, with optional inclusion of UHR-specific parameters based on the station's compatibility, provided through separate frames when necessary.
The enhanced beacon frame improves the efficiency of network discovery and operation by optimizing the information included in beacon frames, addressing the issue of large frame sizes and enhancing compatibility with different Wi-Fi standards, thereby improving overall wireless performance.
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Figure US2024021551_16012025_PF_FP_ABST
Abstract
Description
ACCESS POINT AND APPARATUS USED THEREINCross References to Related Applications[1] This application is based on and claims priority to US patent application No. 63 / 512,889 filed on July 10, 2023, which is incorporated herein by reference in its entirety.TECHNICAL FIELD[2] Embodiments of the disclosure generally relate to wireless communications, and in particular, to an Access Point (AP) and an apparatus used in the AP.BACKGROUND[3] Wireless devices are becoming widely prevalent and are increasingly requesting access to wireless channels. The Institute of Electrical and Electronics Engineers (IEEE) is developing one or more standards that utilize Orthogonal Frequency -Division Multiple Access (OFDMA) in channel allocation.SUMMARY[4] An aspect of the disclosure provides an apparatus used in an AP, the apparatus including processor circuitry configured to cause the AP to send a beacon frame, wherein the beacon frame includes discovery information associated with a Basic Service Set (BSS) managed by the AP and dynamic information needed for operation of a non-AP station (non- AP STA) associated with the AP.[5] Another aspect of the disclosure provides a method used in an AP, wherein the method includes sending a beacon frame, which includes discovery information associated with a BSS managed by the AP and dynamic information needed for operation of a non-AP STA associated with the AP.BRIEF DESCRIPTION OF THE DRAWINGS[6] Embodiments of the disclosure will be illustrated, by way of example and not limitation, in the figures of the accompanying drawings in which like reference numerals refer to similar elements.[7] FIG. l is a network diagram of an example network environment in accordance with some embodiments of the disclosure.[8] FIG. 2 is a functional block diagram of an exemplary communication station in accordance with some embodiments of the disclosure.[9] FIG. 3 is a functional block diagram of an example of a machine or system upon which any one or more of the techniques (e.g., methodologies) discussed herein may be performed.
[0010] FIG. 4 is a functional block diagram of a radio architecture in accordance with some embodiments of the disclosure that may be implemented in any one of APs and / or user devices of FIG. 1.
[0011] FIG. 5 is a functional block diagram of WLAN FEM circuitry in accordance with some embodiments of the disclosure.
[0012] FIG. 6 is a functional block diagram of radio IC circuitry in accordance with some embodiments of the disclosure.
[0013] FIG. 7 is a functional block diagram of baseband processing circuitry in accordance with some embodiments of the disclosure.DETAILED DESCRIPTION
[0014] Various aspects of the illustrative embodiments will be described using terms commonly employed by those skilled in the art to convey the substance of the disclosure to others skilled in the art. However, it will be apparent to those skilled in the art that many alternate embodiments may be practiced using portions of the described aspects. For purposes of explanation, specific numbers, materials, and configurations are set forth in order to providea thorough understanding of the illustrative embodiments. However, it will be apparent to those skilled in the art that alternate embodiments may be practiced without the specific details. In other instances, well known features may have been omitted or simplified in order to avoid obscuring the illustrative embodiments.
[0015] Further, various operations will be described as multiple discrete operations, in turn, in a manner that is most helpful in understanding the illustrative embodiments; however, the order of description should not be construed as to imply that these operations are necessarily order dependent. In particular, these operations need not be performed in the order of presentation.
[0016] The phrases “in an embodiment” “in one embodiment” and “in some embodiments” are used repeatedly herein. The phrase generally does not refer to the same embodiment; however, it may. The terms “comprising,” “having,” and “including” are synonymous, unless the context dictates otherwise. The phrases “A or B” and “A / B” mean “(A), (B), or (A and B).”
[0017] FIG. 1 is a network diagram illustrating an example network environment of NAV protection, according to some example embodiments of the present disclosure. Wireless network 100 may include one or more user devices 120 and one or more access points(s) (AP) 102, which may communicate in accordance with IEEE 802.11 communication standards. The user device(s) 120 may be mobile devices that are non-stationary (e.g., not having fixed locations) or may be stationary devices.
[0018] In some embodiments, the user devices 120 and the AP 102 may include one or more computer systems similar to that of the functional diagram of FIG. 2 and / or the example machine / system of FIG. 3.
[0019] One or more illustrative user device(s) 120 and / or AP(s) 102 may be operable by one or more user(s) 110. It should be noted that any addressable unit may be a station (STA). An STA may take on multiple distinct characteristics, each of which shape its function. For example, a single addressable unit might simultaneously be a portable STA, a quality-of-service (QoS) STA, a dependent STA, and a hidden STA. The one or more illustrative user device(s) 120 and the AP(s) 102 may be STAs. The one or more illustrative user device(s) 120 and / or AP(s) 102 may operate as a personal basic service set (PBSS) control point / access point(PCP / AP). The user device(s) 120 (e.g., 124, 126, or 128) and / or AP(s) 102 may include any suitable processor-driven device including, but not limited to, a mobile device or a non-mobile, e.g., a static device. For example, the user device(s) 120 and / or AP(s) 102 may include, a user equipment (UE), a station (STA), an access point (AP), a software enabled AP (SoftAP), a personal computer (PC), a wearable wireless device (e.g., bracelet, watch, glasses, ring, etc.), a desktop computer, a mobile computer, a laptop computer, an ultrabook™ computer, a notebook computer, a tablet computer, a server computer, a handheld computer, a handheld device, an internet of things (loT) device, a sensor device, a PDA device, a handheld PDA device, an on-board device, an off-board device, a hybrid device (e.g., combining cellular phone functionalities with PDA device functionalities), a consumer device, a vehicular device, a non-vehicular device, a mobile or portable device, a non-mobile or non-portable device, a mobile phone, a cellular telephone, a PCS device, a PDA device which incorporates a wireless communication device, a mobile or portable GPS device, a DVB device, a relatively small computing device, a non-desktop computer, a “carry small live large” (CSLL) device, an ultra mobile device (UMD), an ultra mobile PC (UMPC), a mobile internet device (MID), an “origami” device or computing device, a device that supports dynamically composable computing (DCC), a context-aware device, a video device, an audio device, an A / V device, a set-top-box (STB), ablu-ray disc (BD) player, aBD recorder, a digital video disc (DVD) player, a high definition (HD) DVD player, a DVD recorder, a HD DVD recorder, a personal video recorder (PVR), a broadcast HD receiver, a video source, an audio source, a video sink, an audio sink, a stereo tuner, a broadcast radio receiver, a flat panel display, a personal media player (PMP), a digital video camera (DVC), a digital audio player, a speaker, an audio receiver, an audio amplifier, a gaming device, a data source, a data sink, a digital still camera (DSC), a media player, a smartphone, a television, a music player, or the like. Other devices, including smart devices such as lamps, climate control, car components, household components, appliances, etc. may also be included in this list.
[0020] As used herein, the term “Internet of Things (loT) device” is used to refer to any object (e.g., an appliance, a sensor, etc.) that has an addressable interface (e.g., an Internet protocol (IP) address, a Bluetooth identifier (ID), a near-field communication (NFC) ID, etc.) and can transmit information to one or more other devices over a wired or wireless connection. An loT device may have a passive communication interface, such as a quick response (QR)code, a radio-frequency identification (RFID) tag, an NFC tag, or the like, or an active communication interface, such as a modem, a transceiver, a transmitter-receiver, or the like. An loT device can have a particular set of attributes (e.g., a device state or status, such as whether the loT device is on or off, open or closed, idle or active, available for task execution or busy, and so on, a cooling or heating function, an environmental monitoring or recording function, a light-emitting function, a sound-emitting function, etc.) that can be embedded in and / or controlled / monitored by a central processing unit (CPU), microprocessor, ASIC, or the like, and configured for connection to an loT network such as a local ad-hoc network or the Internet. For example, loT devices may include, but are not limited to, refrigerators, toasters, ovens, microwaves, freezers, dishwashers, dishes, hand tools, clothes washers, clothes dryers, furnaces, air conditioners, thermostats, televisions, light fixtures, vacuum cleaners, sprinklers, electricity meters, gas meters, etc., so long as the devices are equipped with an addressable communications interface for communicating with the loT network. loT devices may also include cell phones, desktop computers, laptop computers, tablet computers, personal digital assistants (PDAs), etc. Accordingly, the loT network may be comprised of a combination of “legacy” Internet-accessible devices (e.g., laptop or desktop computers, cell phones, etc.) in addition to devices that do not typically have Internet-connectivity (e.g., dishwashers, etc.).
[0021] The user device(s) 120 and / or AP(s) 102 may also include mesh stations in, for example, a mesh network, in accordance with one or more IEEE 802.11 standards and / or 3GPP standards.
[0022] Any of the user device(s) 120 (e.g., user devices 124, 126, 128) and AP(s) 102 may be configured to communicate with each other via one or more communications networks 130 and / or 135 wirelessly or wired. The user device(s) 120 may also communicate peer-to-peer or directly with each other with or without the AP(s) 102. Any of the communications networks 130 and / or 135 may include, but not limited to, any one of a combination of different types of suitable communications networks such as, for example, broadcasting networks, cable networks, public networks (e.g., the Internet), private networks, wireless networks, cellular networks, or any other suitable private and / or public networks. Further, any of the communications networks 130 and / or 135 may have any suitable communication range associated therewith and may include, for example, global networks (e.g., the Internet),metropolitan area networks (MANs), wide area networks (WANs), local area networks (LANs), or personal area networks (PANs). In addition, any of the communications networks 130 and / or 135 may include any type of medium over which network traffic may be carried including, but not limited to, coaxial cable, twisted-pair wire, optical fiber, a hybrid fiber coaxial (HFC) medium, microwave terrestrial transceivers, radio frequency communication mediums, white space communication mediums, ultra-high frequency communication mediums, satellite communication mediums, or any combination thereof.
[0023] Any of the user device(s) 120 (e.g., user devices 124, 126, 128) and AP(s) 102 may include one or more communications antennas. The one or more communications antennas may be any suitable type of antennas corresponding to the communications protocols used by the user device(s) 120 (e.g., user devices 124, 126 and 128) andAP(s) 102. Some non-limiting examples of suitable communications antennas include Wi-Fi antennas, Institute of Electrical and Electronics Engineers (IEEE) 802.11 family of standards compatible antennas, directional antennas, non-directional antennas, dipole antennas, folded dipole antennas, patch antennas, multiple-input multiple-output (MIMO) antennas, omnidirectional antennas, quasi- omni directional antennas, or the like. The one or more communications antennas may be communicatively coupled to a radio component to transmit and / or receive signals, such as communications signals to and / or from the user devices 120 and / or AP(s) 102.
[0024] Any of the user device(s) 120 (e.g., user devices 124, 126, 128) and AP(s) 102 may be configured to perform directional transmission and / or directional reception in conjunction with wirelessly communicating in a wireless network. Any of the user device(s) 120 (e.g., user devices 124, 126, 128) and AP(s) 102 may be configured to perform such directional transmission and / or reception using a set of multiple antenna arrays (e.g., DMG antenna arrays or the like). Each of the multiple antenna arrays may be used for transmission and / or reception in a particular respective direction or range of directions. Any of the user device(s) 120 (e.g., user devices 124, 126, 128) and AP(s) 102 may be configured to perform any given directional transmission towards one or more defined transmit sectors. Any of the user device(s) 120 (e.g., user devices 124, 126, 128) and AP(s) 102 may be configured to perform any given directional reception from one or more defined receive sectors.
[0025] MIMO beamforming in a wireless network may be accomplished using RFbeamforming and / or digital beamforming. In some embodiments, in performing a given MIMO transmission, the user devices 120 and / or AP(s) 102 may be configured to use all or a subset of its one or more communications antennas to perform MIMO beamforming.
[0026] Any of the user devices 120 (e.g., user devices 124, 126, 128) and AP(s) 102 may include any suitable radio and / or transceiver for transmitting and / or receiving radio frequency (RF) signals in the bandwidth and / or channels corresponding to the communications protocols utilized by any of the user device(s) 120 and AP(s) 102 to communicate with each other. The radio components may include hardware and / or software to modulate and / or demodulate communications signals according to pre-established transmission protocols. The radio components may further have hardware and / or software instructions to communicate via one or more Wi-Fi and / or Wi-Fi direct protocols, as standardized by the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standards. In certain example embodiments, the radio component, in cooperation with the communications antennas, may be configured to communicate via 2.4 GHz channels (e.g. 802.11b, 802.11g, 802.1 In, 802.1 lax), 5 GHz channels (e.g. 802. lln, 802.11ac, 802.11ax, 802.11be, etc.), 6 GHz channels (e.g., 802.11ax, 802.11be, etc.), or 60 GHZ channels (e.g. 802. Had, 802. Hay). 800 MHz channels (e.g. 802.11 ah). The communications antennas may operate at 28 GHz and 40 GHz. It should be understood that this list of communication channels in accordance with certain 802.11 standards is only a partial list and that other 802.11 standards may be used (e.g., Next Generation Wi-Fi, or other standards). In some embodiments, non -Wi-Fi protocols may be used for communications between devices, such as Bluetooth, dedicated short-range communication (DSRC), Ultra-High Frequency (UHF) (e.g. IEEE 802.11af, IEEE 802.22), white band frequency (e.g., white spaces), or other packetized radio communications. The radio component may include any known receiver and baseband suitable for communicating via the communications protocols. The radio component may further include a low noise amplifier (LNA), additional signal amplifiers, an analog-to-digital (A / D) converter, one or more buffers, and digital baseband.
[0027] In some embodiments, with reference to FIG. 1, a user device 120 may be in communication with one or more APs 102. For example, one or moreAPs 102 may implement an enhanced beacon frame 142 with one or more user devices 120. The one or more APs 102may be multi -link devices (MLDs) and the one or more user devices 120 may be non-AP MLDs. Each of the one or more APs 102 may include a plurality of individual APs (e.g., API, AP2, APn, where n is an integer) and each of the one or more user devices 120 may include a plurality of individual STAs (e.g., STA1, STA2, . . ., STAn). The AP MLDs and the non-AP MLDs may set up one or more links (e.g., Linkl, Link2, ..., Linkn) between each of the individual APs and STAs. It is understood that the above descriptions are for purposes of illustration and are not meant to be limiting.
[0028] Currently, an AP sends a beacon frame to enable nearby non-AP STAs to discover and identify a Basic Service Set (BSS) managed by the AP, wherein the beacon frame includes BSS parameters, which carry capabilities and BSS operational information associated with the AP, and dynamic operational elements, which carry dynamic information needed for operation of non-AP STAs associated with the AP. The dynamic operational elements have to be present in all beacon frames. However, non-AP STAs not associated with the AP sometimes need just discovery information associated with the BSS managed by the AP and sometimes need to retrieve complete information associated with the BSS managed by the AP.
[0029] Wi-Fi 8 (i.e., IEEE 802.1 Ibn or Ultra High Reliability (UHR)) standard is the next generation of Wi-Fi standard and a successor to IEEE 802.1 Ibe (Wi-Fi 7) standard. In line with all previous Wi-Fi standards, Wi-Fi 8 standard will aim to improve wireless performance in general along with introducing new and innovative features to further advance Wi-Fi technology.
[0030] Since several years, a growing concern is on beacon frames becoming too large, especially in enterprise scenarios with a Multiple Basic Service Set Identifier (BSSID) set. Several minor amendments have already been made to existing Wi-Fi standards to address this issue, but there is no comprehensive, long-term resolution.
[0031] In view of the above cases, an enhanced beacon frame is proposed, wherein the enhanced beacon frame may be sent by a UHR AP (i.e., an AP supporting the UHR standard) and includes the discovery information associated with the BSS managed by the UHR AP and the dynamic information needed for operation of the non-AP STA associated with the UHR AP.
[0032] In some embodiments, the discovery information associated with the BSS managedby the UHR AP is carried by a part of the BSS parameters associated with the UHR AP, and the dynamic information needed for operation of the non-AP STA associated with the UHR AP is carried by all the dynamic operational elements associated with the UHR AP.
[0033] In some embodiments, the discovery information associated with the BSS managed by the UHR AP includes for example, a BSSID, a Service Set Identifier (SSID), supported rates information, generation support information, MLD support information, basic security information and so on, which is needed when a full scan is performed by a non-AP STA not associated with the UHR AP with an intent to discovering available Wi-Fi networks.
[0034] In some embodiments, when the UHR AP is allowing a pre-UHR non-AP STA (i.e., a non-AP STA supporting one or more previous Wi-Fi standards of the UHR standard) to associate with it, the enhanced beacon frame includes all pre-UHR BSS parameters (i.e., all the BSS parameters specified by all the previous Wi-Fi standards of the UHR standard) associated with the BSS managed by the UHR AP, and does not include UHR BSS parameters (i.e., the BSS parameters merely specified by the UHR standard) associated with the BSS managed by the UHR AP. In this case, the UHR BSS parameters associated with the BSS managed by the UHR AP are provided to the pre-UHR non-AP STA via at least one of a probe response frame and an association response frame, wherein the UHR AP sends the probe response frame to the pre-UHR non-AP STA upon receiving to a probe request frame from the pre-UHR non-AP STA, and sends the association response frame to the pre-UHR non-AP STA upon receiving an association request frame from the pre-UHR non-AP STA.
[0035] In some embodiments, when the UHR AP is not allowing the pre-UHR non-AP STA to associate with it, the enhanced beacon frame does not include any BSS parameters. In this case, both the pre-UHR BSS parameters and the UHR BSS parameters associated with the |BSS managed by the UHR AP are provided to a UHR non-AP STA (i.e., a non-AP STA supporting the UHR standard) via at least one of the probe response frame and the association response frame, wherein the UHR AP sends the probe response frame to the UHR non-AP STA upon receiving the probe request frame from the UHR non-AP STA, and sends the association response frame to the UHR non-AP STA upon receiving the association request frame from the UHR non-AP STA.
[0036] FIG. 2 shows a functional diagram of an exemnlarv communication station, inaccordance with one or more example embodiments of the disclosure. In one embodiment, FIG. 2 illustrates a functional block diagram of a communication station 200 that may be suitable for use as the AP 102 (FIG. 1) or the user device 120 (FIG. 1) in accordance with some embodiments. The communication station 200 may also be suitable for use as a handheld device, a mobile device, a cellular telephone, a smartphone, a tablet, a netbook, a wireless terminal, a laptop computer, a wearable computer device, a femtocell, a high data rate (HDR) subscriber station, an access point, an access terminal, or other personal communication system (PCS) device.
[0037] The communication station 200 may include communications circuitry 202 and a transceiver 210 for transmitting and receiving signals to and from other communication stations using one or more antennas 201. The communications circuitry 202 may include circuitry that can operate the physical layer (PHY) communications and / or medium access control (MAC) communications for controlling access to the wireless medium, and / or any other communications layers for transmitting and receiving signals. The communication station 200 may also include processing circuitry 206 and memory 208 arranged to perform the operations described herein. In some embodiments, the communications circuitry 202 and the processing circuitry 206 may be configured to perform operations detailed in the above figures, diagrams, and flows.
[0038] In some embodiments, the communications circuitry 202 may be arranged to contend for a wireless medium and configure frames or packets for communicating over the wireless medium. The communications circuitry 202 may be arranged to transmit and receive signals. The communications circuitry 202 may also include circuitry for modulation / demodulation, upconversion / downconversion, filtering, amplification, etc. In some embodiments, the processing circuitry 206 of the communication station 200 may include one or more processors. In other embodiments, two or more antennas 201 may be coupled to the communications circuitry 202 arranged for transmitting and receiving signals. The memory 208 may store information for configuring the processing circuitry 206 to perform operations for configuring and transmitting message frames and performing the various operations described herein. The memory 208 may include any type of memory, including non-transitory memory, for storing information in a form readable by a machine (e.g., a computer). Forexample, the memory 208 may include a computer-readable storage device, read-only memory (ROM), random-access memory (RAM), magnetic disk storage media, optical storage media, flash-memory devices and other storage devices and media.
[0039] In some embodiments, the communication station 200 may be part of a portable wireless communication device, such as a personal digital assistant (PDA), a laptop or portable computer with wireless communication capability, a web tablet, a wireless telephone, a smartphone, a wireless headset, a pager, an instant messaging device, a digital camera, an access point, a television, a medical device (e.g., a heart rate monitor, a blood pressure monitor, etc.), a wearable computer device, or another device that may receive and / or transmit information wirelessly.
[0040] In some embodiments, the communication station 200 may include one or more antennas 201. The antennas 201 may include one or more directional or omnidirectional antennas, including, for example, dipole antennas, monopole antennas, patch antennas, loop antennas, microstrip antennas, or other types of antennas suitable for transmission of RF signals. In some embodiments, instead of two or more antennas, a single antenna with multiple apertures may be used. In these embodiments, each aperture may be considered a separate antenna. In some multiple-input multiple-output (MIMO) embodiments, the antennas may be effectively separated for spatial diversity and the different channel characteristics that may result between each of the antennas and the antennas of a transmitting station.
[0041] In some embodiments, the communication station 200 may include one or more of a keyboard, a display, a non-volatile memory port, multiple antennas, a graphics processor, an application processor, speakers, and other mobile device elements. The display may be a liquid crystal display (LCD) screen including a touch screen.
[0042] Although the communication station 200 is illustrated as having several separate functional elements, two or more of the functional elements may be combined and may be implemented by combinations of software-configured elements, such as processing elements including digital signal processors (DSPs), and / or other hardware elements. For example, some elements may include one or more microprocessors, DSPs, field- programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), radio- frequency integrated circuits (RFICs) and combinations of various hardware and loeic circuitrv for performing at least thefunctions described herein. In some embodiments, the functional elements of the communication station 200 may refer to one or more processes operating on one or more processing elements.
[0043] Certain embodiments may be implemented in one or a combination of hardware, firmware, and software. Other embodiments may also be implemented as instructions stored on a computer-readable storage device, which may be read and executed by at least one processor to perform the operations described herein. A computer-readable storage device may include any non-transitory memory mechanism for storing information in a form readable by a machine (e.g., a computer). For example, a computer-readable storage device may include read-only memory (ROM), random-access memory (RAM), magnetic disk storage media, optical storage media, flash-memory devices, and other storage devices and media. In some embodiments, the communication station 200 may include one or more processors and may be configured with instructions stored on a computer-readable storage device.
[0044] FIG. 3 illustrates a block diagram of an example of a machine or system upon which any one or more of the techniques (e.g., methodologies) discussed herein may be performed. In other embodiments, the machine 300 may operate as a standalone device or may be connected (e.g., networked) to other machines. In a networked deployment, the machine 300 may operate in the capacity of a server machine, a client machine, or both in server-client network environments. In an example, the machine 300 may act as a peer machine in peer-to-peer (P2P) (or other distributed) network environments. The machine 300 may be a personal computer (PC), a tablet PC, a set-top box (STB), a personal digital assistant (PDA), a mobile telephone, a wearable computer device, a web appliance, a network router, a switch or bridge, or any machine capable of executing instructions (sequential or otherwise) that specify actions to be taken by that machine, such as a base station. Further, while only a single machine is illustrated, the term “machine” shall also be taken to include any collection of machines that individually or jointly execute a set (or multiple sets) of instructions to perform any one or more of the methodologies discussed herein, such as cloud computing, software as a service (SaaS), or other computer cluster configurations.
[0045] Examples, as described herein, may include or may operate on logic or a number of components, modules, or mechanisms. Modules are tangible entities (e.g., hardware)capable of performing specified operations when operating. A module includes hardware. In an example, the hardware may be specifically configured to carry out a specific operation (e.g., hardwired). In another example, the hardware may include configurable execution units (e.g., transistors, circuits, etc.) and a computer readable medium containing instructions where the instructions configure the execution units to carry out a specific operation when in operation. The configuring may occur under the direction of the executions units or a loading mechanism. Accordingly, the execution units are communicatively coupled to the computer-readable medium when the device is operating. In this example, the execution units may be a member of more than one module. For example, under operation, the execution units may be configured by a first set of instructions to implement a first module at one point in time and reconfigured by a second set of instructions to implement a second module at a second point in time.
[0046] The machine (e.g., computer system) 300 may include a hardware processor 302 (e.g., a central processing unit (CPU), a graphics processing unit (GPU), a hardware processor core, or any combination thereof), a main memory 304 and a static memory 306, some or all of which may communicate with each other via an interlink (e.g., bus) 308. The machine 300 may further include a power management device 332, a graphics display device 310, an alphanumeric input device 312 (e.g., a keyboard), and a user interface (UI) navigation device 314 (e.g., a mouse). In an example, the graphics display device 310, alphanumeric input device 312, and UI navigation device 314 may be a touch screen display. The machine 300 may additionally include a storage device (i.e., drive unit) 316, a signal generation device 318 (e.g., a speaker), an enhanced beacon frame device 319, a network interface device / transceiver 320 coupled to antenna(s) 330, and one or more sensors 328, such as a global positioning system (GPS) sensor, a compass, an accelerometer, or other sensor. The machine 300 may include an output controller 334, such as a serial (e.g., universal serial bus (USB), parallel, or other wired or wireless (e.g., infrared (IR), near field communication (NFC), etc.) connection to communicate with or control one or more peripheral devices (e.g., a printer, a card reader, etc.)). The operations in accordance with one or more example embodiments of the disclosure may be carried out by a baseband processor. The baseband processor may be configured to generate corresponding baseband signals. The baseband processor may further include physical layer (PHY) and medium access control layer (MAC)circuitry, and may further interface with the hardware processor 302 for generation and processing of the baseband signals and for controlling operations of the main memory 304, the storage device 316, and / or the enhanced beacon frame device 319. The baseband processor may be provided on a single radio card, a single chip, or an integrated circuit (IC).
[0047] The storage device 316 may include a machine readable medium 322 on which is stored one or more sets of data structures or instructions 324 (e.g., software) embodying or utilized by any one or more of the techniques or functions described herein. The instructions 324 may also reside, completely or at least partially, within the main memory 304, within the static memory 306, or within the hardware processor 302 during execution thereof by the machine 300. In an example, one or any combination of the hardware processor 302, the main memory 304, the static memory 306, or the storage device 316 may constitute machine-readable media.
[0048] The enhanced beacon frame device 319 may carry out or perform any of the operations and processes described and shown above.
[0049] It is understood that the above are only a subset of what the enhanced beacon frame device 319 may be configured to perform and that other functions included throughout this disclosure may also be performed by the enhanced beacon frame device 319.
[0050] While the machine-readable medium 322 is illustrated as a single medium, the term "machine-readable medium" may include a single medium or multiple media (e.g., a centralized or distributed database, and / or associated caches and servers) configured to store the one or more instructions 324.
[0051] Various embodiments may be implemented fully or partially in software and / or firmware. This software and / or firmware may take the form of instructions contained in or on a non-transitory computer-readable storage medium. Those instructions may then be read and executed by one or more processors to enable performance of the operations described herein. The instructions may be in any suitable form, such as but not limited to source code, compiled code, interpreted code, executable code, static code, dynamic code, and the like. Such a computer-readable medium may include any tangible non-transitory medium for storing information in a form readable by one or more computers, such as but not limited to read onlymemory (ROM); random access memory (RAM); magnetic disk storage media; optical storage media; a flash memory, etc.
[0052] The term “machine-readable medium” may include any medium that is capable of storing, encoding, or carrying instructions for execution by the machine 300 and that cause the machine 300 to perform any one or more of the techniques of the disclosure, or that is capable of storing, encoding, or carrying data structures used by or associated with such instructions. Non-limiting machine-readable medium examples may include solid-state memories and optical and magnetic media. In an example, a massed machine-readable medium includes a machine-readable medium with a plurality of particles having resting mass. Specific examples of massed machine-readable media may include non-volatile memory, such as semiconductor memory devices (e.g., electrically programmable read-only memory (EPROM), or electrically erasable programmable read-only memory (EEPROM)) and flash memory devices; magnetic disks, such as internal hard disks and removable disks; magnetooptical disks; and CD-ROM and DVD- ROM disks.
[0053] The instructions 324 may further be transmitted or received over a communications network 326 using a transmission medium via the network interface device / transceiver 320 utilizing any one of a number of transfer protocols (e.g., frame relay, internet protocol (IP), transmission control protocol (TCP), user datagram protocol (UDP), hypertext transfer protocol (HTTP), etc.). Example communications networks may include a local area network (LAN), a wide area network (WAN), a packet data network (e.g., the Internet), mobile telephone networks (e.g., cellular networks), plain old telephone (POTS) networks, wireless data networks (e.g., Institute of Electrical and Electronics Engineers (IEEE) 802.11 family of standards known as Wi-Fi®, IEEE 802.16 family of standards known as WiMax®), IEEE 802.15.4 family of standards, and peer-to-peer (P2P) networks, among others. In an example, the network interface device / transceiver 320 may include one or more physical jacks (e.g., Ethernet, coaxial, or phone jacks) or one or more antennas to connect to the communications network 326. In an example, the network interface device / transceiver 320 may include a plurality of antennas to wirelessly communicate using at least one of single-input multipleoutput (SIMO), multiple-input multiple-output (MIMO), or multiple-input single-output (MISO) techniques. The term “transmission medium” shall be taken to include any intangiblemedium that is capable of storing, encoding, or carrying instructions for execution by the machine 300 and includes digital or analog communications signals or other intangible media to facilitate communication of such software.
[0054] The operations and processes described and shown above may be carried out or performed in any suitable order as desired in various implementations. Additionally, in certain implementations, at least a portion of the operations may be carried out in parallel. Furthermore, in certain implementations, less than or more than the operations described may be performed.
[0055] FIG. 4 is a functional block diagram of a radio architecture in accordance with some embodiments that may be implemented in any one of APs 102 and / or the user devices 120 of FIG. 1. Radio architecture 400 A, 400B may include radio front-end module (FEM) circuitry 404a-b, radio IC circuitry 406a-b and baseband processing circuitry 408a-b. Radio architecture 400A, 400B as shown includes both Wireless Local Area Network (WLAN) functionality and Bluetooth (BT) functionality although embodiments are not so limited. In this disclosure, “WLAN” and “Wi-Fi” are used interchangeably.
[0056] FEM circuitry 404a-b may include a WLAN or Wi-Fi FEM circuitry 404a and a Bluetooth (BT) FEM circuitry 404b. The WLAN FEM circuitry 404a may include a receive signal path comprising circuitry configured to operate on WLAN RF signals received from one or more antennas 401, to amplify the received signals and to provide the amplified versions of the received signals to the WLAN radio IC circuitry 406a for further processing. The BT FEM circuitry 404b may include a receive signal path which may include circuitry configured to operate on BT RF signals received from one or more antennas 401, to amplify the received signals and to provide the amplified versions of the received signals to the BT radio IC circuitry 406b for further processing. FEM circuitry 404a may also include a transmit signal path which may include circuitry configured to amplify WLAN signals provided by the radio IC circuitry 406a for wireless transmission by one or more of the antennas 401. In addition, FEM circuitry 404b may also include a transmit signal path which may include circuitry configured to amplify BT signals provided by the radio IC circuitry 406b for wireless transmission by the one or more antennas. In the embodiment of FIG. 4, although FEM 404a and FEM 404b are shown as being distinct from one another, embodiments are not so limited, and include within their scope the use of an FEM (not shown) that includes a transmit path and / or a receive path for both WLANand BT signals, or the use of one or more FEM circuitries where at least some of the FEM circuitries share transmit and / or receive signal paths for both WLAN and BT signals.
[0057] Radio IC circuitry 406a-b as shown may include WLAN radio IC circuitry 406a and BT radio IC circuitry 406b. The WLAN radio IC circuitry 406a may include a receive signal path which may include circuitry to down-convert WLAN RF signals received from the FEM circuitry 404a and provide baseband signals to WLAN baseband processing circuitry 408a. BT radio IC circuitry 406b may in turn include a receive signal path which may include circuitry to down-convert BT RF signals received from the FEM circuitry 404b and provide baseband signals to BT baseband processing circuitry 408b. WLAN radio IC circuitry 406a may also include a transmit signal path which may include circuitry to up-convert WLAN baseband signals provided by the WLAN baseband processing circuitry 408a and provide WLAN RF output signals to the FEM circuitry 404a for subsequent wireless transmission by the one or more antennas 401. BT radio IC circuitry 406b may also include a transmit signal path which may include circuitry to up-convert BT baseband signals provided by the BT baseband processing circuitry 408b and provide BT RF output signals to the FEM circuitry 404b for subsequent wireless transmission by the one or more antennas 401. In the embodiment of FIG. 4, although radio IC circuitries 406a and 406b are shown as being distinct from one another, embodiments are not so limited, and include within their scope the use of a radio IC circuitry (not shown) that includes a transmit signal path and / or a receive signal path for both WLAN and BT signals, or the use of one or more radio IC circuitries where at least some of the radio IC circuitries share transmit and / or receive signal paths for both WLAN and BT signals.
[0058] Baseband processing circuitry 408a-b may include a WLAN baseband processing circuitry 408a and a BT baseband processing circuitry 408b. The WLAN baseband processing circuitry 408a may include a memory, such as, for example, a set of RAM arrays in a Fast Fourier Transform or Inverse Fast Fourier Transform block (not shown) of the WLAN baseband processing circuitry 408a. Each of the WLAN baseband processing circuitry 408a and the BT baseband processing circuitry 408b may further include one or more processors and control logic to process the signals received from the corresponding WLAN or BT receive signal path of the radio IC circuitry 406a-b, and to also generate corresponding WLAN or BTbaseband signals for the transmit signal path of the radio IC circuitry 406a-b. Each of the baseband processing circuitries 408a and 408b may further include physical layer (PHY) and medium access control layer (MAC) circuitry, and may further interface with a device for generation and processing of the baseband signals and for controlling operations of the radio IC circuitry 406a-b.
[0059] Referring still to FIG. 4, according to the shown embodiment, WLAN-BT coexistence circuitry 413 may include logic providing an interface between the WLAN baseband processing circuitry 408a and the BT baseband processing circuitry 408b to enable use cases requiring WLAN and BT coexistence. In addition, a switch 403 may be provided between the WLAN FEM circuitry 404a and the BT FEM circuitry 404b to allow switching between the WLAN and BT radios according to application needs. In addition, although the antennas 401 are depicted as being respectively connected to the WLAN FEM circuitry 404a and the BT FEM circuitry 404b, embodiments include within their scope the sharing of one or more antennas as between the WLAN and BT FEMs, or the provision of more than one antenna connected to each of FEM 404a or 404b.
[0060] In some embodiments, the front-end module circuitry 404a-b, the radio IC circuitry 406a-b, and baseband processing circuitry 408a-b may be provided on a single radio card, such as wireless circuit card 402. In some other embodiments, the one or more antennas 401, the FEM circuitry 404a-b and the radio IC circuitry 406a-b may be provided on a single radio card. In some other embodiments, the radio IC circuitry 406a-b and the baseband processing circuitry 408a-b may be provided on a single chip or integrated circuit (IC), such as IC 412.
[0061] In some embodiments, the wireless circuit card 402 may include a WLAN radio card and may be configured for Wi-Fi communications, although the scope of the embodiments is not limited in this respect. In some of these embodiments, the radio architecture 400 A, 400B may be configured to receive and transmit orthogonal frequency division multiplexed (OFDM) or orthogonal frequency division multiple access (OFDMA) communication signals over a multicarrier communication channel. The OFDM or OFDMA signals may include a plurality of orthogonal subcarriers.
[0062] In some of these multicarrier embodiments, radio architecture 400A, 400B may be part of a Wi-Fi communication station (STAI such as a wireless access point (AP), abase stationor a mobile device including a Wi-Fi device. In some of these embodiments, radio architecture 400A, 400B may be configured to transmit and receive signals in accordance with specific communication standards and / or protocols, such as any of the Institute of Electrical and Electronics Engineers (IEEE) standards including, 802.11n-2009, IEEE 802.11-2012, IEEE 802.11-2016, 802.11n-2009, 802.11ac, 802.11ah, 802.11ad, 802.11ay and / or 802.11ax standards and / or proposed specifications for WLANs, although the scope of embodiments is not limited in this respect. Radio architecture 400A, 400B may also be suitable to transmit and / or receive communications in accordance with other techniques and standards.
[0063] In some embodiments, the radio architecture 400A, 400B may be configured for high-efficiency Wi-Fi (HEW) communications in accordance with the IEEE 802.11 ax standard. In these embodiments, the radio architecture 400 A, 400B may be configured to communicate in accordance with an OFDMA technique, although the scope of the embodiments is not limited in this respect.
[0064] In some other embodiments, the radio architecture 400 A, 400B may be configured to transmit and receive signals transmitted using one or more other modulation techniques such as spread spectrum modulation (e.g., direct sequence code division multiple access (DS- CDMA) and / or frequency hopping code division multiple access (FH-CDMA)), time-division multiplexing (TDM) modulation, and / or frequency-division multiplexing (FDM) modulation, although the scope of the embodiments is not limited in this respect.
[0065] In some embodiments, as further shown in FIG. 4, the BT baseband processing circuitry 408b may be compliant with a Bluetooth (BT) connectivity standard such as Bluetooth, Bluetooth 8.0 or Bluetooth 6.0, or any other iteration of the Bluetooth Standard.
[0066] In some embodiments, the radio architecture 400A, 400B may include other radio cards, such as a cellular radio card configured for cellular (e.g., 5GPP such as LTE, LTE- Advanced or 7G communications).
[0067] In some IEEE 802.11 embodiments, the radio architecture 400A, 400B may be configured for communication over various channel bandwidths including bandwidths having center frequencies of about 900 MHz, 2.4 GHz, 5 GHz, and bandwidths of about 2 MHz, 4 MHz, 5 MHz, 5.5 MHz, 6 MHz, 8 MHz, 10 MHz, 20 MHz, 40 MHz, 80 MHz (with contiguousbandwidths) or 80+80 MHz (160MHz) (with non-contiguous bandwidths). In some embodiments, a 920 MHz channel bandwidth may be used. The scope of the embodiments is not limited with respect to the above center frequencies however.
[0068] FIG. 5 illustrates WLAN FEM circuitry 404a in accordance with some embodiments. Although the example of FIG. 5 is described in conjunction with the WLAN FEM circuitry 404a, the example of FIG. 5 may be described in conjunction with the example BT FEM circuitry 404b (FIG. 4), although other circuitry configurations may also be suitable.
[0069] In some embodiments, the FEM circuitry 404a may include a TX / RX switch 502 to switch between transmit mode and receive mode operation. The FEM circuitry 404a may include a receive signal path and a transmit signal path. The receive signal path of the FEM circuitry 404a may include a low-noise amplifier (LNA) 506 to amplify received RF signals 503 and provide the amplified received RF signals 507 as an output (e.g., to the radio IC circuitry 406a-b (FIG. 4)). The transmit signal path of the circuitry 404a may include a power amplifier (PA) to amplify input RF signals 509 (e.g., provided by the radio IC circuitry 406a- b), and one or more filters 512, such as band-pass filters (BPFs), low-pass filters (LPFs) or other types of filters, to generate RF signals 515 for subsequent transmission (e.g., by one or more of the antennas 401 (FIG. 4)) via an example duplexer 514.
[0070] In some dual -mode embodiments for Wi-Fi communication, the FEM circuitry 404a may be configured to operate in either the 2.4 GHz frequency spectrum or the 5 GHz frequency spectrum. In these embodiments, the receive signal path of the FEM circuitry 404a may include a receive signal path duplexer 504 to separate the signals from each spectrum as well as provide a separate LNA 506 for each spectrum as shown. In these embodiments, the transmit signal path of the FEM circuitry 404a may also include a power amplifier 510 and a filter 512, such as a BPF, an LPF or another type of filter for each frequency spectrum and a transmit signal path duplexer 514 to provide the signals of one of the different spectrums onto a single transmit path for subsequent transmission by the one or more of the antennas 401 (FIG. 4). In some embodiments, BT communications may utilize the 2.4 GHz signal paths and may utilize the same FEM circuitry 404a as the one used for WLAN communications.
[0071] FIG. 6 illustrates radio IC circuitry 406a in accordance with some embodiments. The radio IC circuitry 406a is one examnle of circuitrv that mav be suitable for use as theWLAN or BT radio IC circuitry 406a / 406b (FIG. 4), although other circuitry configurations may also be suitable. Alternatively, the example of FIG. 6 may be described in conjunction with the example BT radio IC circuitry 406b.
[0072] In some embodiments, the radio IC circuitry 406a may include a receive signal path and a transmit signal path. The receive signal path of the radio IC circuitry 406a may include at least mixer circuitry 602, such as, for example, down-conversion mixer circuitry, amplifier circuitry 606 and filter circuitry 608. The transmit signal path of the radio IC circuitry 406a may include at least filter circuitry 612 and mixer circuitry 614, such as, for example, up- conversion mixer circuitry. Radio IC circuitry 406a may also include synthesizer circuitry 604 for synthesizing a frequency 605 for use by the mixer circuitry 602 and the mixer circuitry 614. The mixer circuitry 602 and / or 614 may each, according to some embodiments, be configured to provide direct conversion functionality. The latter type of circuitry presents a much simpler architecture as compared with standard super-heterodyne mixer circuitries, and any flicker noise brought about by the same may be alleviated for example through the use of OFDM modulation. FIG. 6 illustrates only a simplified version of a radio IC circuitry, and may include, although not shown, embodiments where each of the depicted circuitries may include more than one component. For instance, mixer circuitry 614 may each include one or more mixers, and filter circuitries 608 and / or 612 may each include one or more filters, such as one or more BPFs and / or LPFs according to application needs. For example, when mixer circuitries are of the direct-conversion type, they may each include two or more mixers.
[0073] In some embodiments, mixer circuitry 602 may be configured to down-convert RF signals received from the FEM circuitry 404a-b (FIG. 4) based on the synthesized frequency 605 provided by synthesizer circuitry 604. The amplifier circuitry 606 may be configured to amplify the down-converted signals and the filter circuitry 608 may include an LPF configured to remove unwanted signals from the down-converted signals to generate output baseband signals 607. Output baseband signals 607 may be provided to the baseband processing circuitry 408a-b (FIG. 4) for further processing. In some embodiments, the output baseband signals 607 may be zero-frequency baseband signals, although this is not a requirement. In some embodiments, mixer circuitry 602 may include passive mixers, although the scope of the embodiments is not limited in this respect.
[0074] In some embodiments, the mixer circuitry 614 may be configured to up-convert input baseband signals 611 based on the synthesized frequency 605 provided by the synthesizer circuitry 604 to generate RF output signals 609 for the FEM circuitry 404a-b. The baseband signals 611 may be provided by the baseband processing circuitry 408a-b and may be filtered by filter circuitry 612. The filter circuitry 612 may include an LPF or a BPF, although the scope of the embodiments is not limited in this respect.
[0075] In some embodiments, the mixer circuitry 602 and the mixer circuitry 614 may each include two or more mixers and may be arranged for quadrature down-conversion and / or up- conversion respectively with the help of synthesizer circuitry 604. In some embodiments, the mixer circuitry 602 and the mixer circuitry 614 may each include two or more mixers each configured for image rejection (e.g., Hartley image rejection). In some embodiments, the mixer circuitry 602 and the mixer circuitry 614 may be arranged for direct down-conversion and / or direct up-conversion, respectively. In some embodiments, the mixer circuitry 602 and the mixer circuitry 614 may be configured for super-heterodyne operation, although this is not a requirement.
[0076] Mixer circuitry 602 may include, according to one embodiment: quadrature passive mixers (e.g., for the in-phase (I) and quadrature phase (Q) paths). In such an embodiment, RF input signal 507 from FIG. 5 may be down-converted to provide I and Q baseband output signals to be transmitted to the baseband processor.
[0077] Quadrature passive mixers may be driven by zero and ninety-degree time-varying LO switching signals provided by a quadrature circuitry which may be configured to receive a LO frequency (fLO) from a local oscillator or a synthesizer, such as LO frequency 605 of synthesizer circuitry 604 (FIG. 6). In some embodiments, the LO frequency may be the carrier frequency, while in other embodiments, the LO frequency may be a fraction of the carrier frequency (e.g., one-half the carrier frequency, one-third the carrier frequency). In some embodiments, the zero and ninety-degree time-varying switching signals may be generated by the synthesizer, although the scope of the embodiments is not limited in this respect.
[0078] In some embodiments, the LO signals may differ in duty cycle (the percentage of one period in which the LO signal is high) and / or offset (the difference between start points of the period). In some embodiments, the LO sienals mav have an 85% duty cycle and an 80%offset. In some embodiments, each branch of the mixer circuitry (e.g., the in-phase (I) and quadrature phase (Q) path) may operate at an 80% duty cycle, which may result in a significant reduction is power consumption.
[0079] The RF input signal 507 (FIG. 5) may include a balanced signal, although the scope of the embodiments is not limited in this respect. The I and Q baseband output signals may be provided to low-noise amplifier, such as amplifier circuitry 606 (FIG. 6) or to filter circuitry 608 (FIG. 6).
[0080] In some embodiments, the output baseband signals 607 and the input baseband signals 611 may be analog baseband signals, although the scope of the embodiments is not limited in this respect. In some alternate embodiments, the output baseband signals 607 and the input baseband signals 611 may be digital baseband signals. In these alternate embodiments, the radio IC circuitry may include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry.
[0081] In some dual-mode embodiments, a separate radio IC circuitry may be provided for processing signals for each spectrum, or for other spectrums not mentioned here, although the scope of the embodiments is not limited in this respect.
[0082] In some embodiments, the synthesizer circuitry 604 may be a fractional-N synthesizer or a fractional N / N+l synthesizer, although the scope of the embodiments is not limited in this respect as other types of frequency synthesizers may be suitable. For example, synthesizer circuitry 604 may be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer comprising a phase-locked loop with a frequency divider. According to some embodiments, the synthesizer circuitry 604 may include digital synthesizer circuitry. An advantage of using a digital synthesizer circuitry is that, although it may still include some analog components, its footprint may be scaled down much more than the footprint of an analog synthesizer circuitry. In some embodiments, frequency input into synthesizer circuitry 604 may be provided by a voltage controlled oscillator (VCO), although that is not a requirement. A divider control input may further be provided by either the baseband processing circuitry 408a-b (FIG. 4) depending on the desired output frequency 605. In some embodiments, a divider control input (e.g., N) may be determined from a look-up table (e.g., within a Wi-Fi card) based on a channel number and a channel center freouencv as determined or indicated bythe example application processor 410. The application processor 410 may include, or otherwise be connected to, one of the example security signal converter 101 or the example received signal converter 103 (e.g., depending on which device the example radio architecture is implemented in).
[0083] In some embodiments, synthesizer circuitry 604 may be configured to generate a carrier frequency as the output frequency 605, while in other embodiments, the output frequency 605 may be a fraction of the carrier frequency (e.g., one-half the carrier frequency, one-third the carrier frequency). In some embodiments, the output frequency 605 may be a LO frequency (fLO).
[0084] FIG. 7 illustrates a functional block diagram of baseband processing circuitry 408a in accordance with some embodiments. The baseband processing circuitry 408a is one example of circuitry that may be suitable for use as the baseband processing circuitry 408a (FIG. 4), although other circuitry configurations may also be suitable. Alternatively, the example of FIG. 7 may be used to implement the example BT baseband processing circuitry 408b of FIG. 4.
[0085] The baseband processing circuitry 408a may include a receive baseband processor (RX BBP) 702 for processing receive baseband signals 607 provided by the radio IC circuitry 406a-b (FIG. 4) and a transmit baseband processor (TX BBP) 704 for generating transmit baseband signals 611 for the radio IC circuitry 406a-b. The baseband processing circuitry 408a may also include control logic 706 for coordinating the operations of the baseband processing circuitry 408a.
[0086] In some embodiments (e.g., when analog baseband signals are exchanged between the baseband processing circuitry 408a-b and the radio IC circuitry 406a-b), the baseband processing circuitry 408a may include ADC 710 to convert analog baseband signals 709 received from the radio IC circuitry 406a-b to digital baseband signals for processing by the RX BBP 702. In these embodiments, the baseband processing circuitry 408a may also include DAC 712 to convert digital baseband signals from the TX BBP 704 to analog baseband signals 711.
[0087] In some embodiments that communicate OFDM signals or OFDMA signals, such as through baseband processing processor 408a, the transmit baseband processor 704 may beconfigured to generate OFDM or OFDMA signals as appropriate for transmission by performing an inverse fast Fourier transform (IFFT). The receive baseband processor 702 may be configured to process received OFDM signals or OFDMA signals by performing an FFT. In some embodiments, the receive baseband processor 702 may be configured to detect the presence of an OFDM signal or OFDMA signal by performing an autocorrelation, to detect a preamble, such as a short preamble, and by performing a cross-correlation, to detect a long preamble. The preambles may be part of a predetermined frame structure for Wi-Fi communication.
[0088] Referring back to FIG. 4, in some embodiments, the antennas 401 (FIG. 4) may each include one or more directional or omnidirectional antennas, including, for example, dipole antennas, monopole antennas, patch antennas, loop antennas, microstrip antennas or other types of antennas suitable for transmission of RF signals. In some multiple-input multiple-output (MIMO) embodiments, the antennas may be effectively separated to take advantage of spatial diversity and the different channel characteristics that may result. Antennas 401 may each include a set of phased-array antennas, although embodiments are not so limited.
[0089] Although the radio architecture 400A, 400B is illustrated as having several separate functional elements, one or more of the functional elements may be combined and may be implemented by combinations of software-configured elements, such as processing elements including digital signal processors (DSPs), and / or other hardware elements. For example, some elements may include one or more microprocessors, DSPs, field-programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), radio-frequency integrated circuits (RFICs) and combinations of various hardware and logic circuitry for performing at least the functions described herein. In some embodiments, the functional elements may refer to one or more processes operating on one or more processing elements.
[0090] The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments. The terms “computing device,” “user device,” “communication station,” “station,” “handheld device,” “mobile device,” “wireless device” and “user equipment” (UE) as used herein refers to a wirelesscommunication device such as a cellular telephone, a smartphone, a tablet, a netbook, a wireless terminal, a laptop computer, a femtocell, a high data rate (HDR) subscriber station, an access point, a printer, a point of sale device, an access terminal, or other personal communication system (PCS) device. The device may be either mobile or stationary.
[0091] As used within this document, the term “communicate” is intended to include transmitting, or receiving, or both transmitting and receiving. This may be particularly useful in claims when describing the organization of data that is being transmitted by one device and received by another, but only the functionality of one of those devices is required to infringe the claim. Similarly, the bidirectional exchange of data between two devices (both devices transmit and receive during the exchange) may be described as “communicating,” when only the functionality of one of those devices is being claimed. The term “communicating” as used herein with respect to a wireless communication signal includes transmitting the wireless communication signal and / or receiving the wireless communication signal. For example, a wireless communication unit, which is capable of communicating a wireless communication signal, may include a wireless transmitter to transmit the wireless communication signal to at least one other wireless communication unit, and / or a wireless communication receiver to receive the wireless communication signal from at least one other wireless communication unit.
[0092] As used herein, unless otherwise specified, the use of the ordinal adjectives “first,” “second,” “third,” etc., to describe a common object, merely indicates that different instances of like objects are being referred to and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
[0093] The term “access point” (AP) as used herein may be a fixed station. An access point may also be referred to as an access node, a base station, an evolved node B (eNodeB), or some other similar terminology known in the art. An access terminal may also be called a mobile station, user equipment (UE), a wireless communication device, or some other similar terminology known in the art. Embodiments disclosed herein generally pertain to wireless networks. Some embodiments may relate to wireless networks that operate in accordance with one of the IEEE 802.11 standards.
[0094] Some embodiments may be used in conjunction with various devices and systems, for example, a personal computer (PC), a deskton comnuter. a mobile computer, a laptopcomputer, a notebook computer, a tablet computer, a server computer, a handheld computer, a handheld device, a personal digital assistant (PDA) device, a handheld PDA device, an onboard device, an off-board device, a hybrid device, a vehicular device, a non-vehicular device, a mobile or portable device, a consumer device, a non-mobile or non-portable device, a wireless communication station, a wireless communication device, a wireless access point (AP), a wired or wireless router, a wired or wireless modem, a video device, an audio device, an audio-video (A / V) device, a wired or wireless network, a wireless area network, a wireless video area network (WVAN), a local area network (LAN), a wireless LAN (WLAN), a personal area network (PAN), a wireless PAN (WPAN), and the like.
[0095] Some embodiments may be used in conjunction with one way and / or two-way radio communication systems, cellular radio-telephone communication systems, a mobile phone, a cellular telephone, a wireless telephone, a personal communication system (PCS) device, a PDA device which incorporates a wireless communication device, a mobile or portable global positioning system (GPS) device, a device which incorporates a GPS receiver or transceiver or chip, a device which incorporates an RFID element or chip, a multiple input multiple output (MIMO) transceiver or device, a single input multiple output (SIMO) transceiver or device, a multiple input single output (MISO) transceiver or device, a device having one or more internal antennas and / or external antennas, digital video broadcast (DVB) devices or systems, multistandard radio devices or systems, a wired or wireless handheld device, e.g., a smartphone, a wireless application protocol (WAP) device, or the like.
[0096] Some embodiments may be used in conjunction with one or more types of wireless communication signals and / or systems following one or more wireless communication protocols, for example, radio frequency (RF), infrared (IR), frequency-division multiplexing (FDM), orthogonal FDM (OFDM), time-division multiplexing (TDM), time-division multiple access (TDMA), extended TDMA (E-TDMA), general packet radio service (GPRS), extended GPRS, code-division multiple access (CDMA), wideband CDMA (WCDMA), CDMA 2000, single-carrier CDMA, multi -carrier CDMA, multi-carrier modulation (MDM), discrete multi- tone (DMT), Bluetooth®, global positioning system (GPS), Wi-Fi, Wi-Max, ZigBee, ultra- wideband (UWB), global system for mobile communications (GSM), 2G, 2.5G, 3G, 3.5G, 4G, fifth generation (5G) mobile networks, 3 GPP, long term evolution (LTE), LTE advanced,enhanced data rates for GSM Evolution (EDGE), or the like. Other embodiments may be used in various other devices, systems, and / or networks.
[0097] The following paragraphs describe examples of various embodiments.
[0098] Example 1 includes an apparatus used in an Access Point (AP), the apparatus comprising processor circuitry configured to cause the AP to send a beacon frame, wherein: the beacon frame comprises discovery information associated with a Basic Service Set (BSS) managed by the AP and dynamic information needed for operation of a non-AP station (non- AP STA) associated with the AP.
[0099] Example 2 includes the apparatus of Example 1, wherein the beacon frame comprises a capability bit for Ultra High Reliability (UHR) support.
[0100] Example 3 includes the apparatus of Example 1, wherein when the AP is allowing a pre-UHR non-AP STA to associate with it, the beacon frame comprises all pre-UHR BSS parameters associated with the BSS managed by the AP.
[0101] Example 4 includes the apparatus of Example 3, wherein the processor circuitry is further configured to cause the AP to: send a probe response frame to the pre-UHR non-AP STA upon receiving a probe request frame from the pre-UHR non-AP STA; and send an association response frame to the pre-UHR non-AP STA upon receiving an association request frame from the pre-UHR non-AP STA, wherein UHR BSS parameters associated with the BSS managed by the AP are provided to the pre-UHR non-AP STA via at least one of the probe response frame and the association response frame.
[0102] Example 5 includes the apparatus of Example 1, wherein the processor circuitry is further configured to cause the AP to, when the AP is not allowing a pre-UHR non-AP STA to associate with it: send a probe response frame to a UHR non-AP STA upon receiving a probe request frame from the UHR non-AP STA; and send an association response frame to the UHR non-AP STA upon receiving an association request frame from the UHR non-AP STA, wherein both pre-UHR BSS parameters and UHR BSS parameters associated with the |BSS managed by the AP are provided to the UHR non-AP STA via at least one of the probe response frame and the association response frame.
[0103] Example 6 includes a method used in an Access Point (AP), wherein the method comprises sending a beacon frame, which comprises discovery information associated with a Basic Service Set (BSS) managed by the AP and dynamic information needed for operation of a non-AP station (non-AP STA) associated with the AP.
[0104] Example 7 includes the method of Example 6, wherein the beacon frame comprises a capability bit for Ultra High Reliability (UHR) support.
[0105] Example 8 includes the method of Example 6, wherein when the AP is allowing a pre-UHR non-AP STA to associate with it, the beacon frame comprises all pre-UHR BSS parameters associated with the BSS managed by the AP.
[0106] Example 9 includes the method of Example 8, further comprising: sending a probe response frame to the pre-UHR non-AP STA upon receiving a probe request frame from the pre-UHR non-AP STA; and sending an association response frame to the pre-UHR non-AP STA upon receiving an association request frame from the pre-UHR non-AP STA, wherein UHR BSS parameters associated with the BSS managed by the AP are provided to the pre- UHR non-AP STA via at least one of the probe response frame and the association response frame.
[0107] Example 10 includes the method of Example 6, further comprising, when the AP is not allowing a pre-UHR non-AP STA to associate with it: sending a probe response frame to a UHR non-AP STA upon receiving a probe request frame from the UHR non-AP STA; and sending an association response frame to the UHR non-AP STA upon receiving an association request frame from the UHR non-AP STA, wherein both pre-UHR BSS parameters and UHR BSS parameters associated with the |BSS managed by the AP are provided to the UHR non-AP STA via at least one of the probe response frame and the association response frame.
[0108] Example 11 includes a non-transitory computer readable storage medium storing computer readable instructions thereon, the computer readable instructions, when executed by processor circuitry used in an Access Point (AP), causing the AP to send a beacon frame, wherein: the beacon frame comprises discovery information associated with a Basic Service Set (BSS) managed by the AP and dynamic information needed for operation of a non-AP station (non-AP STA) associated with the AP.
[0109] Example 12 includes the non-transitory computer readable storage medium of Example 11, wherein the beacon frame comprises a capability bit for Ultra High Reliability (UHR) support.
[0110] Example 13 includes the non-transitory computer readable storage medium of Example 11 , wherein when the AP is allowing a pre-UHR non-AP STA to associate with it, the beacon frame comprises all pre-UHR BSS parameters associated with the BSS managed by the AP.
[0111] Example 14 includes the non-transitory computer readable storage medium of Example 13, wherein the processor circuitry is further configured to cause the AP to: send a probe response frame to the pre-UHR non-AP STA upon receiving a probe request frame from the pre-UHR non-AP STA; and send an association response frame to the pre-UHR non-AP STA upon receiving an association request frame from the pre-UHR non-AP STA, wherein UHR BSS parameters associated with the BSS managed by the AP are provided to the pre- UHR non-AP STA via at least one of the probe response frame and the association response frame.
[0112] Example 15 includes the non-transitory computer readable storage medium of Example 11, wherein the processor circuitry is further configured to cause the AP to, when the AP is not allowing a pre-UHR non-AP STA to associate with it: send a probe response frame to a UHR non-AP STA upon receiving a probe request frame from the UHR non-AP STA; and send an association response frame to the UHR non-AP STA upon receiving an association request frame from the UHR non-AP STA, wherein both pre-UHR BSS parameters and UHR BSS parameters associated with the |BSS managed by the AP are provided to the UHR non-AP STA via at least one of the probe response frame and the association response frame.
[0113] Example 16 includes an Access Point, comprising the apparatus of any one of Examples 1-5.
[0114] Example 17 includes an apparatus used in an Access Point (AP), comprising means for implementing the method of any one of Examples 6-10.
[0115] Example 18 includes an Access Point (AP), comprising means for implementing the method of any one of Examples 6-10.
[0116] Although certain embodiments have been illustrated and described herein for purposes of description, a wide variety of alternate and / or equivalent embodiments or implementations calculated to achieve the same purposes may be substituted for the embodiments shown and described without departing from the scope of the disclosure. This application is intended to cover any adaptations or variations of the embodiments discussed herein. Therefore, it is manifestly intended that embodiments described herein be limited only by the appended claims and the equivalents thereof.
Claims
What is claimed is:
1. An apparatus used in an Access Point (AP), the apparatus comprising processor circuitry configured to cause the AP to send a beacon frame, wherein: the beacon frame comprises discovery information associated with a Basic Service Set (BSS) managed by the AP and dynamic information needed for operation of a non-AP station (non-AP STA) associated with the AP.
2. The apparatus of claim 1, wherein the beacon frame comprises a capability bit for Ultra High Reliability (UHR) support.
3. The apparatus of claim 1, wherein when the AP is allowing a pre-UHR non-AP STA to associate with it, the beacon frame comprises all pre-UHR BSS parameters associated with the BSS managed by the AP.
4. The apparatus of claim 3, wherein the processor circuitry is further configured to cause the AP to: send a probe response frame to the pre-UHR non-AP STA upon receiving a probe request frame from the pre-UHR non-AP STA; and send an association response frame to the pre-UHR non-AP STA upon receiving an association request frame from the pre-UHR non-AP STA, whereinUHR BSS parameters associated with the BSS managed by the AP are provided to the pre- UHR non-AP STA via at least one of the probe response frame and the association response frame.
5. The apparatus of claim 1, wherein the processor circuitry is further configured to cause the AP to, when the AP is not allowing a pre-UHR non-AP STA to associate with it: send a probe response frame to a UHR non-AP STA upon receiving a probe request frame from the UHR non-AP STA; andsend an association response frame to the UHR non-AP STA upon receiving an association request frame from the UHR non-AP STA, wherein both pre-UHR BSS parameters and UHR BSS parameters associated with the |BSS managed by the AP are provided to the UHR non-AP STA via at least one of the probe response frame and the association response frame.
6. A method used in an Access Point (AP), wherein the method comprises sending a beacon frame, which comprises discovery information associated with a Basic Service Set (BSS) managed by the AP and dynamic information needed for operation of a non-AP station (non- AP STA) associated with the AP.
7. The method of claim 6, wherein the beacon frame comprises a capability bit for Ultra High Reliability (UHR) support.
8. The method of claim 6, wherein when the AP is allowing a pre-UHR non-AP STA to associate with it, the beacon frame comprises all pre-UHR BSS parameters associated with the BSS managed by the AP.
9. The method of claim 8, further comprising: sending a probe response frame to the pre-UHR non-AP STA upon receiving a probe request frame from the pre-UHR non-AP STA; and sending an association response frame to the pre-UHR non-AP STA upon receiving an association request frame from the pre-UHR non-AP STA, whereinUHR BSS parameters associated with the BSS managed by the AP are provided to the pre- UHR non-AP STA via at least one of the probe response frame and the association response frame.
10. The method of claim 6, further comprising, when the AP is not allowing a pre-UHR non-AP STA to associate with it:sending a probe response frame to a UHR non-AP STA upon receiving a probe request frame from the UHR non-AP STA; and sending an association response frame to the UHR non-AP STA upon receiving an association request frame from the UHR non-AP STA, wherein both pre-UHR BSS parameters and UHR BSS parameters associated with the |BSS managed by the AP are provided to the UHR non-AP STA via at least one of the probe response frame and the association response frame.
11. A non-transitory computer readable storage medium storing computer readable instructions thereon, the computer readable instructions, when executed by processor circuitry used in an Access Point (AP), causing the AP to send a beacon frame, wherein: the beacon frame comprises discovery information associated with a Basic Service Set (BSS) managed by the AP and dynamic information needed for operation of a non-AP station (non-AP STA) associated with the AP.
12. The non-transitory computer readable storage medium of claim 11, wherein the beacon frame comprises a capability bit for Ultra High Reliability (UHR) support.
13. The non-transitory computer readable storage medium of claim 11, wherein when the AP is allowing a pre-UHR non-AP STA to associate with it, the beacon frame comprises all pre-UHR BSS parameters associated with the BSS managed by the AP.
14. The non-transitory computer readable storage medium of claim 13, wherein the processor circuitry is further configured to cause the AP to: send a probe response frame to the pre-UHR non-AP STA upon receiving a probe request frame from the pre-UHR non-AP STA; and send an association response frame to the pre-UHR non-AP STA upon receiving an association request frame from the pre-UHR non-AP STA, whereinUHR BSS parameters associated with the BSS managed by the AP are provided to the pre- UHR non-AP STA via at least one of the probe response frame and the association response frame.
15. The non-transitory computer readable storage medium of claim 11, wherein the processor circuitry is further configured to cause the AP to, when the AP is not allowing a pre- UHR non-AP STA to associate with it: send a probe response frame to a UHR non-AP STA upon receiving a probe request frame from the UHR non-AP STA; and send an association response frame to the UHR non-AP STA upon receiving an association request frame from the UHR non-AP STA, wherein both pre-UHR BSS parameters and UHR BSS parameters associated with the |BSS managed by the AP are provided to the UHR non-AP STA via at least one of the probe response frame and the association response frame.
16. An Access Point, comprising the apparatus of any one of claims 1-5.