TWI645730B - Efficient resource allocation - Google Patents

Abstract

In one aspect of the present invention, methods, computer readable media, and devices are provided. The device can be a wireless device. The wireless device determines a first RU subset of resource element (RU) sets that extend across a channel bandwidth in a transmission period, the first RU subset including fewer RUs of the RU set, each RU of the RU set including at least 26 One tone. The wireless device communicates with at least one of the data or control information in the first RU subset.

Description

Efficient resource allocation [Cross-reference to related applications]

This patent application claims the benefit of U.S. Provisional Application S/N.62/046,154, filed on September 4, 2014, entitled "EFFICIENT RESOURCE ALLOCATION", which is incorporated by reference in its entirety. this.

This case is generally about communication systems, and in particular, about allocating bandwidth resources in an efficient manner.

In many telecommunication systems, communication networks are used to exchange messages between several spatially separated interactive devices. The network may be classified according to geographic extent, which may be, for example, a city area, a local area, or a personal area. Such networks can be designated as wide area networks (WANs), metropolitan area networks (MANs), regional networks (LANs), wireless local area networks (WLANs), or personal area networks (PANs), respectively. The network is also based on the switching/routing techniques used to interconnect various network nodes and devices (eg, circuit switching versus packet switching), the type of physical media used for transmission (eg, wired versus wireless), and used Set of protocols (eg, Internet Protocol Suite, Synchronous Optical Networking) Road (SONET), Ethernet, etc.) are different.

Wireless networks are often preferred when network elements are mobile and thus have dynamic connectivity requirements, or where the network architecture is formed in an ad hoc topology rather than a fixed topology. Wireless networks use electromagnetic waves in the frequency bands of radio, microwave, infrared, light, etc. to employ intangible physical media in a non-guided propagation mode. Wireless networks advantageously facilitate user mobility and rapid on-site deployment when compared to fixed wired networks.

The system, method, computer readable medium and device of the present invention each have several aspects, and not all of the single aspects are responsible for the desired attributes of the present invention. Some features will now be briefly discussed, without limiting the scope of the invention as expressed by the appended claims. After considering this discussion, and particularly after reading the section entitled "Detailed Description," it will be appreciated that the features of the present invention are to provide advantages to devices in a wireless network.

In one aspect of the present invention, methods, computer readable media, and devices are provided. The device can be a wireless device. The wireless device determines a first RU subset of resource element (RU) sets that extend across a channel bandwidth in a transmission period, the first RU subset including fewer RUs of the RU set, each RU of the RU set including at least 26 One tone. The wireless device communicates with at least one of the data or control information in the first RU subset.

100‧‧‧Wireless communication system

102‧‧‧Basic Service Area (BSA)

104‧‧‧Access Point (AP)

108‧‧‧Downlink (DL)

110‧‧‧Uplink (UL)

112‧‧‧ Station (STA)

114‧‧‧ Station (STA)

116‧‧‧ Station (STA)

118‧‧‧ Station (STA)

124‧‧‧Resource Configuration Component

126‧‧‧Resource Configuration Component

202‧‧‧Wireless equipment

202b‧‧‧Wireless equipment

204‧‧‧ Processor

206‧‧‧ memory

208‧‧‧Signal Detector

210‧‧‧transmitter

212‧‧‧ Receiver

214‧‧‧ transceiver

216‧‧‧ transceiver

218‧‧‧Signal Detector

220‧‧‧Digital Signal Processor (DSP)

222‧‧‧User interface

224‧‧‧Resource Configuration Component

226‧‧‧ busbar system

302‧‧‧Modulator

302a‧‧‧Wireless equipment

304‧‧‧Transformation components

306‧‧‧Digital Analog Converter

308‧‧‧Amplifier

310‧‧‧transmitter

320‧‧‧Digital Signal Processor (DSP)

401‧‧‧Receiving amplifier

404‧‧‧Transformation components

405‧‧‧Channel estimator and equalizer

406‧‧‧ demodulator

410‧‧‧ Analog Digital Converter

412‧‧‧ Receiver

420‧‧‧Digital Signal Processor (DSP)

502a‧‧‧Modulator

502b‧‧‧Modulator

502n‧‧‧Modulator

504‧‧‧Encoder

505‧‧‧Interlaced system

506‧‧‧Streaming parser

508a‧‧‧Space Stream Interleaver

508b‧‧‧Space Stream Interleaver

508n‧‧‧Space Stream Interleaver

510a‧‧‧Transformation components

510b‧‧‧Transformation components

510n‧‧‧Transformation components

512a‧‧‧ converter

512b‧‧‧ converter

512n‧‧‧ converter

514a‧‧‧transmitter

514b‧‧‧transmitter

514n‧‧‧transmitter

516a‧‧‧Antenna

516b‧‧‧Antenna

516n‧‧‧Antenna

518a‧‧‧Antenna

518b‧‧‧Antenna

518n‧‧‧Antenna

620a‧‧‧ Receiver

620b‧‧‧ Receiver

620n‧‧‧ Receiver

622a‧‧‧ converter

622b‧‧‧ converter

622n‧‧‧ converter

624a‧‧‧Transformation components

624b‧‧‧Transformation components

624n‧‧‧Transformation components

626a‧‧‧Channel estimator and equalizer block

626b‧‧‧Channel Estimator and Equalizer Block

626n‧‧‧channel estimator and equalizer block

628‧‧‧MIMO detector

630a‧‧ Demodulator

630b‧‧‧ demodulator

630n‧‧‧ demodulator

632a‧‧Deinterleaver

632b‧‧‧Deinterlacer

632n‧‧‧Deinterlacer

634‧‧‧Streaming inverse resolver

636‧‧‧Decoder

700‧‧‧ physical layer packets

702‧‧‧ preamble signal

704‧‧‧ Short Training Field (STF)

706‧‧‧Long Training Field (LTF)

708‧‧‧Signal Field (SIG)

710‧‧‧ payload

800‧‧‧ diagram

804‧‧‧Wireless equipment

806‧‧‧ channel

808‧‧‧Wireless equipment

810‧‧‧Resource allocation

816‧‧‧RU

832‧‧‧RU

834‧‧‧RU

836‧‧‧RU

838‧‧‧RU

860‧‧‧Resource allocation

900‧‧‧图

910‧‧‧Resource allocation

916‧‧‧RU

918A‧‧‧RU

918B‧‧‧RU

920‧‧‧DC tone

922‧‧‧ Left protection tone

924‧‧‧right protection tone

960‧‧‧Resource allocation

968A‧‧‧Edge RU-section

968B‧‧‧Edge RU-section

1000‧‧‧ diagram

1010‧‧‧Resource allocation

1016‧‧‧RU

1018A‧‧‧Center RU-section

1018B‧‧‧Center RU-section

1020‧‧‧DC tone

1022‧‧‧ Left protection tone

1024‧‧‧right protection tone

1060‧‧‧Resource allocation

1068A‧‧‧Edge RU-section

1068B‧‧‧Edge RU-section

1100‧‧‧ diagram

1110‧‧‧Resource allocation

1116‧‧‧RU

1118A‧‧‧Center RU-section

1118B‧‧‧Center RU-section

1120‧‧‧DC tone

1122‧‧‧ Left protection tone

1124‧‧‧right protection tone

1160‧‧‧ Resource allocation

1168A‧‧‧Edge RU-section

1168B‧‧‧Edge RU-section

1200‧‧‧ diagram

1210‧‧‧Resource allocation

1216‧‧‧RU

1218A‧‧‧Center RU-section

1218B‧‧‧Center RU-section

1220‧‧‧DC tone

1222‧‧‧Left protection tone

1224‧‧‧right protection tone

1260‧‧‧Resource allocation

1268A‧‧‧Edge RU-section

1268B‧‧‧Edge RU-section

1300‧‧‧ diagram

1310‧‧‧Resource allocation

1316‧‧‧RU

1318A‧‧‧Center RU-section

1318B‧‧‧Center RU-section

1320‧‧‧DC tone

1322‧‧‧Left protection tone

1324‧‧‧right protection tone

1368A‧‧‧Edge RU-section

1368B‧‧‧Edge RU-section

1400‧‧‧ diagram

1410‧‧‧Resource allocation

1416‧‧‧RU

1418A‧‧‧Center RU-section

1418B‧‧‧Center RU-section

1420‧‧‧DC tone

1422‧‧‧Left protection tone

1424‧‧‧right protection tone

1460‧‧‧Resource allocation

1468A‧‧‧Edge RU-section

1468B‧‧‧Edge RU-section

1500‧‧‧图

1510‧‧‧Resource allocation

1516‧‧‧RU

1518A‧‧‧Center RU-section

1518B‧‧‧Center RU-section

1520‧‧‧DC tone

1522‧‧‧left protection tone

1524‧‧‧right protection tone

1560‧‧‧Resource allocation

1568A‧‧‧Edge RU-section

1568B‧‧‧Edge RU-section

1600‧‧‧ diagram

1610‧‧‧Resource allocation

1616‧‧‧RU

1618A‧‧‧Center RU-section

1618B‧‧‧Center RU-section

1620‧‧‧DC tone

1622‧‧‧Left protection tone

1624‧‧‧right protection tone

1668A‧‧ Center RU-section

1668B‧‧‧Center RU-section

1700‧‧‧图

1710‧‧‧Resource allocation

1716‧‧‧RU

1718A‧‧‧Center RU-section

1718B‧‧‧Center RU-section

1720‧‧‧DC tone

1722‧‧‧ Left protection tone

1724‧‧‧right protection tone

1760‧‧‧Resource allocation

1768A‧‧‧Edge RU-section

1768B‧‧‧Edge RU-section

1800‧‧‧ diagram

1810‧‧‧Resource allocation

1816‧‧‧RU

1818A‧‧‧Center RU-section

1818B‧‧‧Center RU-section

1820‧‧‧DC tone

1822‧‧‧left protection tone

1824‧‧‧right protection tone

1860‧‧‧Resource allocation

1868A‧‧‧Edge RU-section

1868B‧‧‧Edge RU-section

1900‧‧‧图

1910‧‧‧ Resource allocation

1916‧‧‧RU

1918A‧‧ Center RU-section

1918B‧‧ Center RU-section

1920‧‧‧DC tone

1922‧‧‧Left protection tone

1924‧‧ ‧ right protection tone

1960‧‧‧Resource allocation

1968A‧‧‧Edge RU-section

1968B‧‧‧Edge RU-section

2000‧‧‧图

2010‧‧‧Resource allocation

2016‧‧‧RU

2018A‧‧‧Center RU-section

2018B‧‧‧Center RU-section

2020‧‧‧DC tone

2022‧‧‧Left protection tone

2024‧‧‧right protection tone

2060‧‧‧Resource allocation

2068A‧‧‧Edge RU-section

2068B‧‧‧Edge RU-section

2100‧‧‧ method

2112‧‧‧ operation

2114‧‧‧ operation

2116‧‧‧ operation

2120‧‧‧ operation

2122‧‧‧ operation

2124‧‧‧ operation

2126‧‧‧ operation

2152‧‧‧ operation

2154‧‧‧ operation

2156‧‧‧ operation

2200‧‧‧ method

2205‧‧‧ operation

2210‧‧‧ operation

2215‧‧‧ operation

2220‧‧‧ operation

2225‧‧‧ operation

2230‧‧‧ operation

2300‧‧‧ method

2305‧‧‧ operation

2310‧‧‧Operation

2315‧‧‧Operation

2400‧‧‧Data Streaming Chart

2402‧‧‧Equipment

2404‧‧‧ Receiving components

2406‧‧‧tone mapping component

2407‧‧‧Application of data

2408‧‧‧Channel Assignment Components

2410‧‧‧Transfer components

2432‧‧‧Information packet

2442‧‧‧Information packet

2440‧‧‧Information

2450‧‧‧Wireless equipment

2464‧‧‧ Frame

2500‧‧‧Wireless communication equipment

2505‧‧‧ Receiver

2510‧‧‧Processing system

2515‧‧‧transmitter

2524‧‧‧Resource Configuration Component

Figure 1 illustrates an example wireless communication system in which aspects of the present invention may be employed.

2 is a wireless device that can be employed in the wireless communication system of FIG. Functional block diagram.

Figure 3 illustrates various components that can be used to communicate wireless communications in a wireless device.

4 illustrates various components that can be used to receive wireless communications in a wireless device.

5 is a functional block diagram of a MIMO system that can be implemented in a wireless device, such as the wireless device of FIG. 2, to transmit and receive wireless communications.

6 is a functional block diagram of an example MIMO system that can be implemented in a wireless device, such as the wireless device of FIG. 2, to receive wireless communications.

FIG. 7 is a block diagram showing an exemplary structure of a physical layer packet.

FIG. 8 is a diagram illustrating resource configuration on a channel of a WLAN.

9 is a diagram illustrating a first example resource configuration on a 20 MHz bandwidth channel in a WLAN.

10 is a diagram illustrating a second example resource configuration on a 20 MHz bandwidth channel in a WLAN.

11 is a diagram illustrating a third example resource configuration on a 20 MHz bandwidth channel in a WLAN.

12 is a diagram illustrating a first example resource configuration on a 40 MHz bandwidth channel in a WLAN.

13 is a diagram illustrating a second example resource configuration on a 40 MHz bandwidth channel in a WLAN.

14 is a diagram illustrating a third example resource configuration on a 40 MHz bandwidth channel in a WLAN.

Figure 15 is a diagram showing the fourth real on a 40 MHz bandwidth channel in a WLAN. A diagram of an example resource configuration.

16 is a diagram illustrating a first example resource configuration on a channel of 80 MHz bandwidth in a WLAN.

17 is a diagram illustrating a second example resource configuration on a channel of 80 MHz bandwidth in a WLAN.

18 is a diagram illustrating a third example resource configuration on a channel of 80 MHz bandwidth in a WLAN.

19 is a diagram illustrating a fourth example resource configuration on a channel of 80 MHz bandwidth in a WLAN.

20 is a diagram illustrating a fifth example resource configuration on a channel of 80 MHz bandwidth in a WLAN.

21 is a flow diagram of an example method of allocating resources on a channel in a WLAN.

22 is a flow diagram of an example method of allocating resources of a bandwidth to at least one station.

23 is a flow diagram of an example method of determining resource configuration of a bandwidth to communicate with an access point.

24 is a conceptual data flow diagram illustrating data streams between different components/devices in an example equipment.

25 is a functional block diagram of an example wireless communication device.

Various aspects of the novel systems, devices, computer readable media and methods are described more fully hereinafter with reference to the accompanying drawings. However, the present case can be implemented in many different forms and should not be construed as being limited to any of the provisions provided throughout the case. Body structure or function. Rather, these aspects are provided so that this disclosure will be thorough and complete, and the scope of the present invention will be fully conveyed by those of ordinary skill in the art to which the invention pertains. Based on the teachings herein, one of ordinary skill in the art to which the present invention pertains will be appreciated. The scope of the present invention is intended to cover any such novel systems, devices, computer readable media, and methods disclosed herein, regardless of Any other aspect of the invention is implemented independently or in combination. For example, any number of aspects set forth herein can be used to implement an apparatus or a method of practice. In addition, the scope of the invention is intended to cover a device or method that is practiced as a function of the various embodiments of the invention as described herein, or other structures, functions, or structures and functions. It should be understood that any aspect disclosed herein can be implemented by one or more elements of the claim.

Although specific aspects are described herein, numerous variations and permutations of these aspects are within the scope of the present disclosure. Although some of the benefits and advantages of the preferred aspects are mentioned, the scope of the present invention is not intended to be limited to a particular benefit, use, or objective. Rather, the various aspects of the present invention are intended to be broadly applicable to different wireless technologies, system configurations, networks, and transmission protocols, some of which are illustrated by way of example in the drawings and the description of the preferred aspects. The detailed description and drawings are merely illustrative of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Popular wireless network technologies can include various types of wireless local area networks (WLANs). WLANs can be used to interconnect nearby devices with widely used networking protocols. The various aspects described herein can be applied to any communication standard, such as a wireless protocol.

In some aspects, orthogonal frequency division multiplexing (OFDM), direct sequence spread spectrum (DSSS) communication, a combination of OFDM and DSSS communication, or other schemes can be used to transmit wireless signals in accordance with the 802.11 protocol. The implementation of the 802.11 protocol can be used for sensors, metering, and smart grids. Advantageously, aspects of certain devices implementing the 802.11 protocol may consume less power than devices implementing other wireless protocols, and/or may be used across relatively long distances (eg, about 1 kilometer or longer) ) to transmit wireless signals.

In some implementations, a WLAN includes various devices that are components of an access wireless network. For example, there can be two types of devices: an access point (AP) and a client (also known as a station or "STA"). In general, an AP can be used as a hub or base station for a WLAN, and a STA is used as a user of a WLAN. For example, the STA can be a laptop, a personal digital assistant (PDA), a mobile phone, and the like. In an example, the STA connects to the AP via a wireless link that follows WiFi (eg, IEEE 802.11 protocol) to obtain general connectivity to the Internet or to other wide area networks. In some implementations, the STA can also be used as an AP.

An access point may also be implemented, or referred to as a Node B, a Radio Network Controller (RNC), an evolved Node B, a Base Station Controller (BSC), a Base Transceiver Station (BTS), a base. Station (BS), transceiver function (TF), radio router, transceiver, connection point, or some other terminology.

The station may also be implemented as, or be referred to as, an access terminal (AT), a subscriber station, a subscriber unit, a mobile station, a remote station, a remote terminal, a user terminal, a user agent, a user equipment, User equipment, or some other terminology. In some implementations, the access terminal can include a cellular telephone, wireless Telephone, Session Initiation Protocol (SIP) telephone, Wireless Area Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless connectivity, or some other suitable processing device connected to the wireless data modem. Thus, one or more aspects taught herein can be incorporated into a telephone (eg, a cellular or smart phone), a computer (eg, a laptop), a portable communication device, a handset, a portable Computing device (eg, personal data assistant), entertainment device (eg, music or video device, or satellite radio), gaming device or system, global positioning system device, or any other suitable device configured to communicate via wireless media in.

In one aspect, the MIMO scheme can be used for wide area WLAN (eg, WiFi) connectivity. MIMO utilizes a radio wave characteristic called multipath. In multipath, the transmitted material may bounce back from objects (eg, walls, doors, furniture) to reach the receiving antenna multiple times via different routes and at different times. A MIMO device employing MIMO splits the data stream into multiple parts (referred to as spatial streams) and transmits each spatial stream to the corresponding antenna on the receiving WLAN device via separate antennas.

The term "associated with" or "associated" or any variant thereof shall be given the broadest possible meaning within the context of the present disclosure. As an example, when a first device is associated with a second device, it should be understood that the two devices may be directly associated or may be in the presence of an intermediate device. For the sake of brevity, the procedure for establishing an association between two devices will be described using a handshake protocol that requires one of these devices to make an "association request" followed by another device to make an "association response" "." Those of ordinary skill in the art to which the invention pertains will appreciate that the handshake protocol may require other signal delivery, such as, for example, to provide for signal delivery for authentication.

Any reference to an element such as "first" or "second" as used herein generally does not limit the number or order of those elements. Rather, these assignments are used herein as a convenient way to distinguish between two or more elements or instances of an element. Therefore, the reference to the first element and the second element does not mean that only two elements can be used, or that the first element must precede the second element. In addition, the phrase "at least one" in a list of items refers to any combination of those items, including individual members. As an example, "at least one of A, B, or C" is intended to encompass: A, or B, or C, or any combination thereof (eg, A-B, A-C, B-C, and A-B-C).

As discussed above, certain devices described herein may implement, for example, the 802.11 standard. Such devices (whether used as STAs or APs or other devices) can be used for smart metering or for use in smart grids. Such devices can be used in sensor applications or in home automation. These devices may be used instead or in addition to a health care environment, such as for personal health care. These devices can also be used to monitor to enable extended range of Internet connectivity (for example, for use with hotspots) or for machine-to-machine communication.

Certain devices described herein may further implement Multiple Input Multiple Output (MIMO) technology and be implemented as part of the 802.11 standard. MIMO system employs multiple (N _T) transmit antennas and multiple (N _R) receive antennas for data transmission. MIMO channel formed by the N _T transmit antennas and N _R receive antennas may be decomposed into N _S independent channels is also referred to spatial channel or stream, where N _S Min{ N _T , N _R }. Each of the N _S independent channels corresponds to one dimension. If additional dimensions created by the multiple transmit and receive antennas are utilized, the MIMO system can provide improved performance (e.g., higher throughput and/or greater reliability).

FIG. 1 illustrates an example wireless communication system 100 in which various aspects of the present invention may be employed. Wireless communication system 100 can operate in accordance with wireless standards, such as the 802.11 standard. The wireless communication system 100 can include an AP 104 that communicates with STAs (e.g., STAs 112, 114, 116, and 118).

Various procedures and methods can be used for transmission between the AP 104 and the STA in the wireless communication system 100. For example, signals can be transmitted and received between the AP 104 and the STA in accordance with OFDM/OFDMA techniques. If this is the case, the wireless communication system 100 can be referred to as an OFDM/OFDMA system. Alternatively, signals can be transmitted and received between the AP 104 and the STA in accordance with CDMA techniques. If this is the case, the wireless communication system 100 can be referred to as a CDMA system.

A communication link that facilitates transmissions from the AP 104 to one or more STAs may be referred to as a downlink (DL) 108, while a communication link that facilitates transmissions from one or more STAs to the AP 104 may be referred to as an uplink. Link (UL) 110. Alternatively, downlink 108 may be referred to as a forward link or a forward channel, and uplink 110 may be referred to as a reverse link or a reverse channel. In some aspects, the DL communication can include unicast or multicast traffic indications.

In some aspects, the AP 104 can suppress adjacent channel interference (ACI) so that the AP 104 can receive UL communications on more than one channel simultaneously without causing significant analog-to-digital conversion (ADC) clipping noise. The AP 104 may improve the suppression of ACI, for example, via having a separate finite impulse response (FIR) filter for each channel or having a longer ADC backoff period with increased bit width.

The AP 104 acts as a base station and provides a basic service area (BSA) Wireless communication coverage in 102. The BSA (e.g., BSA 102) is the coverage area of an AP (e.g., AP 104). The AP 104, along with the STAs associated with the AP 104 and communicating using the AP 104, may be referred to as a Basic Service Set (BSS). It should be noted that the wireless communication system 100 may not have a central AP (e.g., AP 104), but may function as a peer-to-peer network between STAs. Accordingly, the functionality of the AP 104 described herein may alternatively be performed by one or more STAs.

The AP 104 can communicate to other nodes of the wireless communication system 100 (STA) via a communication link (such as the downlink 108) over one or more channels (eg, multiple narrowband channels, each channel including a frequency bandwidth) A beacon signal (or simply "beacon") is transmitted, which can help other nodes (STAs) synchronize their timing with the AP 104, or provide other information or functionality. Such beacons can be transmitted periodically. In one aspect, the period between successive transmissions can be referred to as a hyperframe. The transmission of the beacon can be divided into several groups or intervals. In one aspect, the beacon may include, but is not limited to, information such as: timestamp information for setting a shared clock, peer-to-peer network identifier, device identifier, capability information, hyperframe duration, transmission direction information, Receive direction information, neighbor list, and/or extended neighbor list, some of which are described in more detail below. Thus, a beacon can include both information that is common (eg, shared) between several devices, as well as information that is specific to a given device.

In some aspects, a STA (e.g., STA 114) may be required to associate with the AP 104 to send and/or receive communications from the AP 104. In one aspect, information for association is included in the beacon broadcast by the AP 104. In order to receive such beacons, STA 114 may perform a wide coverage search, for example, on the coverage area. For example, the search can also be by the STA 114 via the lighthouse The way is to sweep over the coverage area to execute. After receiving the information for association, STA 114 may transmit a reference signal to AP 104, such as an association probe or request. In some aspects, the AP 104 can use a backhaul service, for example, to communicate with a larger network, such as the Internet or the Public Switched Telephone Network (PSTN).

In one aspect, AP 104 can include one or more components for performing various functions. For example, the AP 104 can include a resource configuration component 124 configured to perform resources for allocating bandwidth to at least one station (e.g., STAs 112, 114, 116, 118) for communication and to indicate to the at least one station Procedures for allocating resources. The resource configuration component 124 can control a program that determines a first subset of RUs of the set of RUs that extend across the channel bandwidth in the transmission period, the first subset of RUs comprising less than the RUs of the set of RUs, each RU of the set of RUs including at least 26 tones. The resource configuration component 124 can also control the process of communicating at least one of the data or control information in the first RU subset.

In another aspect, STA 114 can include one or more components for performing various functions. For example, STA 114 may include a resource configuration component 126 that is configured to perform procedures related to determining a resource configuration of a bandwidth to communicate with an access point (e.g., AP 104). The resource configuration component 126 can control a program that determines a first subset of RUs of the set of RUs that extend across the channel bandwidth in the transmission period, the first subset of RUs comprising less than the RUs of the set of RUs, each RU of the set of RUs including at least 26 tones. The resource configuration component 126 can also control the communication of at least one of the data or control information in the first RU subset.

2 is a functional block diagram of a wireless device 202 that can be employed within the wireless communication system 100 of FIG. Wireless device 202 is an example of a device that can be configured to implement the various methods described herein. For example, wireless device 202 can include an AP 104 or any of the STAs 112, 114, 116 or 118.

Wireless device 202 can include a processor 204 that controls the operation of wireless device 202. Processor 204 may also be referred to as a central processing unit (CPU). Memory 206, which may include both read-only memory (ROM) and random access memory (RAM), may provide instructions and data to processor 204. A portion of the memory 206 may also include non-volatile random access memory (NVRAM). The processor 204 typically performs logical and arithmetic operations based on program instructions stored within the memory 206. Instructions in memory 206 may be executable (e.g., by processor 204) to implement the methods described herein.

When the wireless device 202 is implemented as an AP or a STA, the resource configuration component 224 can control a program that determines a first subset of RUs of the set of RUs that extend across the channel bandwidth in the transmission period, the first subset of RUs including less than the set of RUs The RU, each RU of the set of RUs includes at least 26 tones. The resource configuration component 224 can also control the communication of at least one of the data or control information in the first RU subset.

Processor 204 may include or be a component of a processing system implemented with one or more processors. One or more processors can use general purpose microprocessors, microcontrollers, digital signal processors (DSPs), field programmable gate arrays (FPGAs), programmable logic devices (PLDs), controllers, state machines , strobe logic, individual hardware components, dedicated hardware finite state machines, or any combination of any other suitable entity capable of performing algorithms or other manipulations of information.

The processing system can also include machine readable media for storing software. Software should be interpreted broadly to mean any type of instruction, regardless of its Called software, firmware, mediation software, microcode, hardware description language, or others. Instructions may include code (eg, in raw code format, binary code format, executable code format, or any other suitable code format). These instructions, when executed by the one or more processors, cause the processing system to perform the various functions described herein.

The wireless device 202 can also include a housing 208 that can include a transmitter 210 and/or a receiver 212 to allow data transfer and reception between the wireless device 202 and the remote device. Transmitter 210 and receiver 212 can be combined into transceiver 214. Antenna 216 can be attached to housing 208 and electrically coupled to transceiver 214. Wireless device 202 can also include (not shown) multiple transmitters, multiple receivers, multiple transceivers, and/or multiple antennas.

The wireless device 202 can also include a signal detector 218 that can be used to detect and quantize the level of signals received by the transceiver 214 or the receiver 212. Signal detector 218 can detect signals such as total energy, energy per symbol per symbol, power spectral density, and other signals. Wireless device 202 can also include a digital signal processor (DSP) 220 for processing signals. The DSP 220 can be configured to generate a packet for transmission. In some aspects, the packet can include a physical layer data unit (PPDU).

In some aspects, the wireless device 202 can further include a user interface 222. User interface 222 can include a keypad, a microphone, a speaker, and/or a display. User interface 222 can include any component or component that conveys information to and/or receives input from a user of wireless device 202.

The wireless device 202 can also include a resource configuration component 224. When the wireless device 202 is implemented as an AP (eg, the AP 104), the resource configuration component 224 can Configuring to allocate, by processor 204 and/or transceiver 214, resources that allocate bandwidth to at least one station (eg, STAs 112, 114, 116, 118) for communication and to indicate the allocated resources to the at least one station. Related procedures. When the wireless device 202 is implemented as a STA (eg, any of the STAs 112, 114, 116, or 118), the resource configuration component 224 can be configured to perform and determine the frequency via the processor 204 and/or the transceiver 214 A wide resource configuration is a procedure related to communication with an AP (eg, AP 104).

The various components of wireless device 202 can be coupled together by busbar system 226. The busbar system 226 can include, for example, a data bus, and a power bus, a control signal bus, and a status signal bus in addition to the data bus. The components of wireless device 202 can be coupled together or accept or provide input to each other using some other mechanism.

Although several separate components are illustrated in FIG. 2, one or more of these components may be combined or implemented collectively. For example, processor 204 can be utilized to implement not only the functionality described above with respect to processor 204, but also the functionality described above with respect to signal detector 218, DSP 220, user interface 222, and/or resource configuration component 224. Sex. Additionally, each of the components illustrated in Figure 2 can be implemented using a plurality of separate components.

As discussed above, the wireless device 202 can include the AP 104 or the STA 114 and can be used to transmit and/or receive communications. FIG. 3 illustrates various components that may be used in wireless device 202 to communicate wireless communications. The components illustrated in Figure 3 may be used, for example, to carry OFDM communications. In some aspects, the components illustrated in Figure 3 are used to generate and transmit packets to be transmitted over a bandwidth of 20 MHz, 40 MHz, 80 MHz or higher, as discussed in more detail below. in order to For ease of reference, the wireless device 202 configured with the components illustrated in Figure 3 is hereinafter referred to as the wireless device 302a.

The wireless device 302a can include a modulator 302 that is configured to modulate individual bits for transmission. For example, modulator 302 can determine a plurality of symbols from a bit received from processor 204 (FIG. 2) or user interface 222 (FIG. 2), for example, by mapping the bits to a plurality of symbols according to a cluster. These bits may correspond to user data or control information. In some aspects, these bits are received in coded characters. In one aspect, modulator 302 includes a QAM (Quadrature Amplitude Modulation) modulator, such as a 16-QAM modulator or a 64-QAM modulator. In other aspects, modulator 302 includes a binary shift phase keying (BPSK) modulator or a quadrature phase shift keying (QPSK) modulator.

The wireless device 302a can further include a transform component 304 that is configured to convert symbols or otherwise modulated bits from the modulator 302 into the time domain. In FIG. 3, transform component 304 is illustrated as being implemented via an Inverse Fast Fourier Transform (IFFT) component. In some implementations, there may be multiple transform components (not shown) that transform data units of different sizes. In some implementations, transform component 304 itself can be configured to transform data units of different sizes. For example, transform component 304 can be configured with a plurality of modes, and different points can be used in each mode to convert symbols. For example, an IFFT may have a pattern in which 26 points are used to convert symbols being transmitted on 26 tones (eg, subcarriers) into the time domain, and where 242 points are used to be 242 tones The symbols transmitted on are converted to patterns in the time domain. The number of points used by transform component 304 can be referred to as the size of transform component 304.

In Figure 3, modulator 302 and transform component 304 are illustrated as being implemented in In DSP 320. However, in some aspects, one or both of modulator 302 and transform component 304 are implemented in processor 204 or in another component of wireless device 302a (see, for example, the description above with respect to FIG. 2).

As discussed above, the DSP 320 can be configured to generate a data unit for transmission. In some aspects, modulator 302 and transform component 304 can be configured to generate a data unit comprising a plurality of fields, the plurality of fields including control information and a plurality of data symbols. Fields including control information may include, for example, one or more training fields and one or more signal (SIG) fields. Each of these training fields may include a known sequence of values or a sequence of symbols. Each of these SIG fields may include information about the data unit, such as a description of the length or data rate of the data unit.

Returning to the description of FIG. 3, the wireless device 302a can further include a digital analog converter 306 that is configured to convert the output of the transform component to an analog signal. For example, the time domain output of transform component 304 can be converted to a baseband OFDM signal by digital analog converter 306. Digital analog converter 306 can be implemented in processor 204 or in another component of wireless device 202. In some aspects, digital analog converter 306 is implemented in transceiver 214 (FIG. 2) or in a data transmission processor.

The analog signal can be transmitted wirelessly by the transmitter 310. The analog signal may be further processed, such as filtered or upconverted to an intermediate frequency or carrier frequency, prior to transmission by transmitter 310. In the aspect illustrated in FIG. 3, the transmitter 310 includes a transmit amplifier 308. The analog signal may be amplified by transmit amplifier 308 before being transmitted. In some aspects, amplifier 308 includes a low noise amplifier (LNA).

Transmitter 310 is configured to transmit one or more packets or data units in the wireless signal based on the analog signal. These data units can be generated using processor 204 (FIG. 2) and/or DSP 320, for example, using modulator 302 and transform component 304 discussed above. The data elements that can be generated and transmitted as discussed above are described in more detail below with respect to the figures described below.

FIG. 4 illustrates various components that may be used in wireless device 202 to receive wireless communications. The components illustrated in Figure 4 may be used, for example, to receive OFDM communications. In some aspects, the components illustrated in Figure 4 are used to receive data units at a bandwidth of 20 MHz, 40 MHz, 80 MHz, or higher. For example, the components illustrated in Figure 4 can be used to receive data elements transmitted by the components discussed above with respect to Figure 3. For ease of reference, the wireless device 202 configured with the components illustrated in Figure 4 is hereinafter referred to as the wireless device 402b.

Receiver 412 is configured to receive one or more packets or data units in the wireless signal. The data elements that can be received and decoded or otherwise processed as discussed below are described in more detail below with respect to the figures described below.

In the aspect illustrated in FIG. 4, the receiver 412 includes a receive amplifier 401. Receive amplifier 401 can be configured to amplify the wireless signals received by receiver 412. In some aspects, the receiver 412 is configured to adjust the gain of the receive amplifier 401 using an automatic gain control (AGC) procedure. In some aspects, automatic gain control uses the information in one or more received training fields, such as, for example, the received short training field (STF), to adjust the gain. Those of ordinary skill in the art to which the present invention pertains will understand the method for performing AGC. In some aspects, amplifier 401 includes an LNA.

The wireless device 402b can include an analog digital converter 410 that is configured to convert the amplified wireless signal from the receiver 412 into its digital representation. Following being amplified, the wireless signal can be processed before being converted by the digital analog converter 410, such as via being filtered or downconverted to an intermediate frequency or a fundamental frequency. Analog to digital converter 410 may be implemented in processor 204 (FIG. 2) or in another component of wireless device 402b. In some aspects, analog to digital converter 410 is implemented in transceiver 214 (FIG. 2) or in a data receiving processor.

The wireless device 402b can further include a transform component 404 configured to convert a representation of the wireless signal into a frequency spectrum. In FIG. 4, transform component 404 is illustrated as being implemented by a Fast Fourier Transform (FFT) component. As described above with respect to FIG. 3, transform component 404 can be configured with a plurality of modes, and different numbers of points can be used in each mode to convert signals. For example, transform component 404 can have a pattern in which 26 points are used to convert signals received on the 26 tones into the frequency spectrum, and in which 242 points are used to receive on 242 tones The resulting signal is converted to a pattern in the spectrum. The number of points used by transform component 404 can be referred to as the size of transform component 404. In some aspects, transform component 404 can identify a symbol for each point it uses.

The wireless device 402b can further include a channel estimator and equalizer 405 configured to form an estimate of a channel on which the data unit is received, and to remove the channel based on the channel estimate Some effects of the channel. For example, the channel estimator and equalizer 405 can be configured to approximate a function of the channel, and the channel equalizer can be configured to apply an inverse function of the function to the data in the spectrum.

In some aspects, the channel estimator and equalizer 405 estimates information using information from one or more received training fields, such as, for example, a Long Training Field (LTF). The channel estimate can be formed based on one or more LTFs received at the beginning of the data unit. This channel estimate can then be used to equalize the data symbols following the one or more LTFs. One or more additional LTFs may be received in the data unit after a certain period of time or after a certain number of data symbols. These additional LTFs can be used to update channel estimates or to form new estimates. This new or updated channel estimate can be used to equalize the data symbols following these extra LTFs. In some aspects, this new or updated channel estimate is used to rebalance the data symbols that precede these additional LTFs. Those of ordinary skill in the art to which the present invention pertains will understand the methods used to form channel estimates.

The wireless device 402b can further include a demodulator 406 configured to demodulate the equalized data. For example, demodulator 406 can determine a plurality of bits from the symbols output by transform component 404 and channel estimator and equalizer 405, for example, by inverting a bitmap-to-symbol mapping in the cluster. These bits may be processed or evaluated by processor 204 (FIG. 2) or used to display or otherwise output information to user interface 222 (FIG. 2). In this way, data and/or information can be decoded. In some aspects, these bits correspond to coded characters. In one aspect, demodulator 406 includes a QAM (Quadrature Amplitude Modulation) demodulator, such as a 16-QAM demodulator or a 64-QAM demodulator. In other aspects, the demodulator 406 includes a binary shift phase keying (BPSK) demodulator or a quadrature phase shift keying (QPSK) demodulator.

In FIG. 4, transform component 404, channel estimator, and equalizer 405 And demodulator 406 is illustrated as being implemented in DSP 420. However, in some aspects, one or more of transform component 404, channel estimator and equalizer 405, and demodulator 406 are implemented in processor 204 (FIG. 2) or at wireless device 202 (FIG. 2). In another component.

As discussed above, the wireless signal received at the receiver 212 includes one or more data units. The data unit or the data symbols therein can be decoded, evaluated, or otherwise evaluated or processed via the use of the functions or components described above. For example, processor 204 (FIG. 2) and/or DSP 420 can be used to decode data symbols in a data unit using transform component 404, channel estimator and equalizer 405, and demodulator 406.

The data unit exchanged by AP 104 and STA 114 may include control information or information, as discussed above. At the physical (PHY) layer, these data elements may be referred to as physical layer protocol data units (PPDUs). In some aspects, a PPDU can be referred to as a packet or a physical layer packet. Each PPDU may include a preamble signal and a payload. The preamble signal can include a training field and a SIG field. The payload may include, for example, a Media Access Control (MAC) header or other layer of material, and/or user profiles. The payload can be transmitted using one or more data symbols. The systems, methods and apparatus herein may utilize data units with training fields where peak power ratios have been minimized.

The wireless device 302a shown in Figure 3 illustrates an example of a single transmit chain to be transmitted on an antenna. In some implementations, the wireless device 302a can implement a portion of a MIMO system that uses multiple antennas to simultaneously transmit data.

5 is a functional block diagram of a MIMO system that can be implemented in a wireless device, such as wireless device 202 of FIG. 2, to transmit and receive wireless communications. The The MIMO system may utilize some or all of the components described with reference to FIG. The bit for transmission received at the output of the receiver is provided to the encoder 504. Encoder 504 can apply a Forward Error Correction (FEC) code to the bitstream. The FEC code may include a block code, a whirling code, or the like. The encoded bits are provided to an interlace system 505 that distributes the encoded bits into the N transport streams.

Interlace system 505 includes a stream parser 506 that parses the input bit stream from encoder 504 to N spatial stream interleavers 508a, 508b, and 508n. Stream parser 506 can be provided with these spatial streams and parse the bits on a round-robin basis. Other analytic functions can also be used. One analytic function that can be used is k _n =N _TX *k+n (that is, a round-robin method with one bit per spatial stream and then into the next spatial stream, where k _n is the input bit index And N _TX is the number of transmitter/space streams). Another more generalized function f(k,n) can also be used, for example, to send two bits to a spatial stream and then move to the next spatial stream. Each of the interleavers 508a, 508b, and 508n can then individually distribute the bits such that errors due to fading or other channel conditions can be recovered. Interlacers 508a, 508b, and 508n may be referred to hereinafter as interleaver 508.

Each transport stream can then be modulated by modulator 502a, 502b or 502n. As described above with reference to FIG. 3, it is possible to use, for example, QPSK (Quadrature Phase Shift Keying) modulation, BPSK (one bit at a time), 16-QAMM (a group of six bits mapped), 64-QAM Modulation techniques such as modulation and the like modulate these bits. The modulated bits of each stream can be provided to transform components 510a, 510b, and 510n. In some implementations, transform components 510a, 510b and 510n may perform an inverse discrete Fourier transform (IDFT) to convert the modulated bits from the frequency domain to the time domain. Transform components 510a, 510b, and 510n can operate in accordance with different modes as described above with respect to FIG. For example, transform components 510a, 510b, and 510n can be configured to operate according to a 26 point mode or a 242 point mode. In some implementations, Space Time Block Coding (STBC) can be used to encode the modulated bits, and spatial mapping can be performed before it is provided to transform components 510a, 510b, and 510n. After the modulated bits have been converted to time domain signals for each spatial stream, the time domain signals can be converted to analog signals via converters 512a, 512b, and 512n as described above with respect to FIG. These signals can then be transmitted into the wireless radio space at the desired frequency bandwidth (e.g., 20 MHz, 40 MHz, 80 MHz, or higher) using the transmitters 514a, 514b, and 514c and using the antennas 516a, 516b, or 516n.

In some embodiments, antennas 516a, 516b, and 516n are distinct and spatially separated antennas. In other embodiments, distinct signals can be combined into different polarizations of less than N antennas. An example of this scenario is spatial rotation or spatial spreading where multiple spatial streams are mapped onto a single antenna. In any case, it should be understood that distinct spatial streams can be organized in different ways. For example, a transmit antenna can carry data from more than one spatial stream, or several transmit antennas can carry data from a spatial stream. For example, consider the case of a transmitter with 4 transmit antennas and 2 spatial streams. In this case, each spatial stream can be mapped onto two transmit antennas, whereby the two antennas carry data from only one spatial stream.

6 is a functional block diagram of an example MIMO system that can be implemented in a wireless device, such as wireless device 202 of FIG. 2, to receive wireless communications. Wireless setting The device 202b can be configured to simultaneously receive transmissions from the antennas 516a, 516b, and 516n of FIG. The wireless device 202b receives signals from the channels at N antennas 518a, 518b, and 518n (which, where appropriate, separate polarizations) coupled to the N receiving circuits. These signals are then provided to receivers 620a, 620b and 620n, each of which may include an amplifier configured to amplify the received signal. These signals can then be converted to digital form via converters 622a, 622b, and 622n.

The converted signal can then be converted into the frequency spectrum via transform components 624a, 624b, and 624n. As previously described, transform components 624a, 624b, and 624n can operate in accordance with various modes in accordance with the size and bandwidth used (e.g., 26 points, 242 points, etc.). The transformed signals can be provided to respective channel estimator and equalizer blocks 626a, 626b, and 626n that can function similarly as described above with respect to FIG. After channel estimation, the output can be provided to a MIMO detector 628, which can then provide its output to a demodulator 630a that can demodulate the bits according to one of the modulation techniques described above, 630b and 630n. The demodulated bits can then be provided to deinterleaver 632a, 632b, and 632n, which can pass the bits to a stream de-parser 634, the stream The inverse parser 634 can provide these bits in the form of a single bit stream to the decoder 636, which can decode the bits into a suitable stream of data.

As previously mentioned, the data unit exchanged by AP 104 and STA 114 may include control information or material in the form of a physical (PHY) layer packet or a physical layer protocol data unit (PPDU) as discussed above.

FIG. 7 is a diagram showing the preamble signal 702 and the payload of the physical layer packet 700. A block diagram of an example structure of the 710. The preamble signal 702 can include a short training field (STF) 704 that includes an STF sequence of known values. In some aspects, the STF can be used for packet detection (eg, to detect the beginning of a packet) and coarse time/frequency estimates. The STF sequence can be optimized to have a low PAPR and include a non-zero tone subset with a particular periodicity. STF 704 can span one or more OFDM symbols. The preamble signal 702 can further include a long training field (LTF) 706 that can span one or more OFDM symbols and can include one or more LTF sequences with known non-zero values. LTF can be used for channel estimation, fine time/frequency estimation, and pattern detection. The preamble signal 702 can further include a signal field (SIG) 708 as previously described, which can include a number of bits or values that are used in one aspect for mode detection purposes and for transmission parameter decisions.

The techniques described herein can be used in a variety of broadband wireless communication systems, including communication systems based on orthogonal multiplexing schemes. Examples of such communication systems include Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single-Carrier Frequency Division Multiple Access (SC-FDMA) systems, and the like. The OFDMA system utilizes orthogonal frequency division multiplexing (OFDM), a modulation technique that divides the overall system bandwidth into multiple orthogonal subcarriers. These secondary carriers may also be referred to as tones, frequency bands, and the like. In OFDM, each subcarrier can be independently modulated with data. SC-FDMA systems can be transmitted over sub-carriers distributed across system bandwidth using interleaved FDMA (IFDMA), transmitted on blocks adjacent to the subcarrier using localized FDMA (LFDMA), or adjacent by using enhanced FDMA (EFDMA) Transmitted on multiple blocks of the secondary carrier. In general, modulation symbols are transmitted in the frequency domain under OFDM and in the time domain under SC-FDMA. In particular, the tone described below may be an OFDM tone.

Various methods for OFDMA resource configuration will now be described. FIG. 8 is a diagram 800 illustrating resource configuration on a channel of a WLAN. Wireless device 804 (e.g., AP 104 or STA 114) may utilize OFDMA to communicate with one or more wireless devices 808 (e.g., users) on channel 806 in the WLAN. In particular, wireless device 804 can communicate with one or more wireless devices 808 on a particular bandwidth (eg, P MHz) channel 806 in accordance with one or more resource configurations described below with respect to FIGS. 8-20. As an example, P MHz can be 20 MHz, 40 MHz, or 80 MHz. FIG. 8 illustrates an example resource configuration 810 and a resource configuration 860. In resource configuration 810, channel 806 can be divided into K RUs 816 (eg, RU-1 816 to RU-K 816). K is an integer greater than zero. Each RU 816 can occupy a predetermined number of time slots (or time slots) and corresponding N tones (subcarriers). As an example, in some configurations, N can be 26, 52, 106, 242, 484, or 996. Each RU 816 may have the same or a different size than another RU 816. For example, RU-1 816 and RU-K 816 can be the same size (eg, 26 tones), while RU-2 816 can be of different sizes (eg, 52 tones).

In addition, wireless device 804 can allocate one or more RUs 816 for communicating with respective different wireless devices 808. As an example, RU-1 816 to RU-3 816 can be assigned to the first wireless device 808. RU-4 816 to RU-6 816 can be assigned to the second wireless device 808. RU-7 816 to RU-K 816 can be assigned to third wireless device 808. In some configurations, wireless device 804 can transmit the physical layer packet 700 shown in FIG. 7 to a particular wireless device 808. The payload 710 of the physical layer packet 700 can carry the RU 816 that is assigned to the communication between the wireless device 804 and the particular wireless device 808 and that has the material to be communicated. Additionally, a single RU 816 can be assigned to one or more wireless devices 808 when MIMO is used. no The line device 804 can transmit information indicative of the determined channel assignment to each wireless device 808 in a frame (eg, a control frame, a management frame, or a data frame). Upon receipt of the information, each wireless device 808 can use the assigned RU to communicate with the wireless device 804 for data (e.g., control data/signal delivery, and/or payload data).

As described below, in some configurations, channel 806 can be divided into RUs each having 26 tones. These 26 tones can include 24 data tones and 2 pilot tones. In some configurations, channel 806 can also be divided into RUs each having 242 tones. These 242 tones can include 234 data tones and 8 pilot tones. In some configurations, channel 806 can be divided into RUs each having 484 tones. These 484 tones can include 468 data tones and 16 pilot tones.

Moreover, for a particular bandwidth (eg, P MHz) of channels 806, the size of the RUs in these RUs 816 can be a function of bandwidth. As an example, for 20 MHz, channel 806 can include nine RUs 816 each having 26 tones. For 40 MHz, channel 806 can include 16-19 RU 816s each having 26 tones, along with possibly five direct current (DC) tones. For 40 MHz, channel 806 can alternatively include two RUs 816 each having 242 tones, along with possibly five DC tones. For 80 MHz, channel 806 can include 32 or more RUs 816 each having 26 tones. For 80 MHz, channel 806 can alternatively include four RUs 816 each having 242 tones. For 80 MHz, channel 806 may alternatively include two RUs 816 each having 484 tones.

Resource configuration 860 shows RUs 832, 838 and RUs 834, 836 having different sizes. The size of RU 832/838 can be a function of bandwidth. RU 832/838 can be designed using existing parameters according to the IEEE 802.11 standard (for example, 26, 56, 114, 242, or 484 tones). Moreover, in this example, the size of the RU 834/836 can be 7 pairs of tones regardless of the size of the bandwidth. The paired 7 tones can be equivalent to the size of 14/13 tones.

In one aspect, the present disclosure discloses techniques for allocating bandwidth resources to establish a central RU located around a DC tone of bandwidth. Tones that are not used after performing standard resource configuration may be located in the central RU. The central RU tone can be used for a variety of purposes. For example, the center RU tone can be used for the control channel in the downlink. In addition, the center RU tone can be used by the first/last OFDMA user in the uplink or downlink.

In another aspect, for each bandwidth, the RU can be a building block of all resource configurations except the central RU. In some configurations, the RU can be designed using existing RU size (resource granularity) parameters (eg, 26, 56, 114, 242, or 484 tones). The center RU can have a fixed position at the center of the packet bandwidth. The center RU can include several tones (central RU tones). Half of these central RU tones are located at one end of the DC tone group in the bandwidth and the other half of the center RU tones are located at the other end of the DC tone group in the bandwidth. In particular, the central RU can be located between the DC tone and the tone of the RU. The size of the center RU can be scaled by the size of the bandwidth. The wireless device 804 can adjust the number of DC tones (of the central portion of the bandwidth) and the number of guard tones (located at the outer edge portion of the bandwidth) to match the center RU to resources with known tone plans Configuration combination. As shown in the figures, the guard tone can be referred to as a left guard tone and a right guard tone. However, the guard tone at the outer edge portion of the bandwidth may also be referred to as an upper guard tone and a lower guard tone.

In another aspect, there may be one fixed RU for each bandwidth. size. Alternatively, the RU size can vary. The scheduler can be allowed to select the RU size for each bandwidth. The scheduler can indicate the RU size via 1 or 2 bits in the SIG field. Accordingly, the size of the center RU can be a function of both the bandwidth size and the RU size.

The technology of this case offers several advantages. For example, the central RU can be used as a control channel in the downlink or based on signal delivery by the first/last OFDMA user in the uplink or downlink. Another advantage may be that the notification center RU assignment may not be communicated to the station. The station may determine the central RU assignment via other information that has sent a notification to the station. A further advantage is that the MAC layer can eliminate the need to locate and package small packets to fill unused resources, and more resource configuration types are supported.

In yet another aspect, the central RU as described above and below may be replaced by two edges RU having the same total block size as the central RU. The two edge RUs can be located at the left and right edges of the bandwidth and between the guard tone and the first RU. These two edge RUs can be assigned together to enhance diversity.

9 is a diagram 900 illustrating a first example resource configuration on a channel 806 of 20 MHz bandwidth in a WLAN. In resource configuration 910, a 20 MHz bandwidth with 256 tones can be used. In the resource configuration illustrated in FIG. 9 (and the resource configuration shown in FIGS. 10-20), the frequency value is shifted from the upper portion of the bandwidth to the lower portion of the bandwidth (eg, from the left guard tone 922 to the right guard tone 924, This will be increased as described below). In this example, the 20 MHz bandwidth can include 9 RUs for communicating material (eg, RU-1 to RU-8 916 and RU-9 918). As an example, each of these RUs 916 can have 26 tones. In addition, the 26 tones can include 24 data tones and 2 pilot tones. The 20MHz bandwidth can include The left guard tone 922 at the low end of the frequency and the right guard tone 924 at the high end of the frequency. Left guard tone 922 and right guard tone 924 may include a predetermined number (eg, 11) of guard tones. Additionally, the 20 MHz bandwidth can include a number of DC tones 920 at the center of the 20 MHz bandwidth. As an example, the number of DC tones 920 can be determined to be 11. The RU-9 918 can be split into two parts, such as the center RU-part-9A 918A and the center RU-part-9B 918B, one of which is lower in frequency than the DC tone 920 and the other part is higher in frequency DC tone 920. Each of the center RU-port-9A 918A and the center RU-port-9B 918B may include 13 tones.

In resource configuration 960, central RU-part-9A 918A and central RU-part-9B 918B are replaced by edge RU-part-9A 968A and edge RU-part-9B 968B as compared to resource configuration 910. For example, the RU-9 968 is split into edge RU-part-9A 968A and edge RU-part-9B 968B, with one portion placed adjacent to the left guard tone 922 and the other portion placed adjacent to the right guard tone 924. Edge RU-port-9A 968A is higher in frequency than left guard tone 922, and edge RU-port-9B 968B is lower in frequency than right guard tone 924. In some configurations, the edge RU-portions -9A/9B 968A, 968B may not be used to convey material but may be used as an additional guard tone.

The instance resource configuration can be as follows. For a user, the user can use 242 tone resource subtle parameter design (eg, 234 data tones and 8 pilot tone tones), or the user can be assigned all RUs of the 20 MHz bandwidth (eg, RU-1 to RU-8 916 and RU-9 918). For two users, the first user can be assigned RU-1 to RU-8 916 (eg, 8 RUs), and the second user can be assigned a central RU-part-9A/9B 918A, 918B Or edge RU-part-9A/9B 968A, 968B. For three users, the first user can be assigned 4 RUs 916, the second user can be assigned 4 RUs 916, and the third user can be assigned a central RU-part-9A/9B 918A, 918B or Edge RU-part-9A/9B 968A, 968B. Various other combinations are possible. It is worth noting that the central RU-parts -9A/9B 918A, 918B or the edge RU-parts -9A/9B 968A, 968B can have a combined size of 26 tones, and the 26 tones can include 24 data. Tone and 2 pilot frequency adjustments.

10 is a diagram 1000 illustrating a second example resource configuration on a channel 806 of 20 MHz bandwidth in a WLAN. In resource configuration 1010, a 20 MHz bandwidth with 256 tones can be used. In this example, the 20 MHz bandwidth can include 5 RUs for communicating material (eg, RU-1 to RU-4 1016 and RU-5 1018). As an example, each of RU-1 through RU-4 1016 may have 56 tones. The 20 MHz bandwidth may include a left guard tone 1022 at the low end of the frequency and a right guard tone 1024 at the high end of the frequency. The left guard tone 1022 and the right guard tone 1024 may include a predetermined number (eg, 11) of guard tones. Additionally, the 20 MHz bandwidth can include a number of DC tones 1020 at the center of the 20 MHz bandwidth. As an example, the number of DC tones 1020 can be determined to be seven. The RU-5 1018 can be split into two parts, such as a center RU-part-5A 1018A and a center RU-part-5B 1018B, one of which is lower than the DC tone 1020 and the other is higher than the DC tone 1020. Each of the center RU-part-5A 1018A and the center RU-part-5B 1018B may include 7 tones.

In resource configuration 1060, central RU-part-5A 1018A and central RU-part-5B 1018B are replaced by edge RU-part-5A 1068A and edge RU-part-5B 1068B compared to resource configuration 1010. For example, RU-5 1068 was demolished Divided into edge RU-part-5A 1068A and edge RU-part-5B 1068B, one portion is placed adjacent to left guard tone 1022 and the other portion is placed adjacent to right guard tone 1024. Edge RU-port-5A 1068A is higher in frequency than left guard tone 1022, and edge RU-port-5B 1068B is lower in frequency than right guard tone 1024. In some configurations, the edge RU-portions-5A/5B 1068A, 1068B may not be used to convey material but may be used as an additional guard tone.

The instance resource configuration can be as follows. For a user, the user can use 242 tone resource subtle parameter design (eg, 234 data tones and 8 pilot tone tones), or the user can be assigned all RUs of the 20 MHz bandwidth (eg, RU-1 to RU-4 1016 and RU-5 1018). For two users, the first user can be assigned RU-1 to RU-4 1016 (eg, 4 RUs), and the second user can be assigned a central RU-part-5A/5B 1018A, 1018B or edge RU-part-5A/5B 1068A, 1068B. For three users, the first user can be assigned 2 RUs 1016, the second user can be assigned 2 RUs 1016, and the third user can be assigned a central RU-part-5A/5B 1018A, 1018B or Edge RU-section-5A/5B 1068A, 1068B. Various other combinations are possible. It should be noted that the center RU-part-5A/5B 1018A, 1018B or edge RU-part-5A/5B 1068A, 1068B may have a size of 14 tones, and the 14 tones may include 12 data. Tone and 2 pilot frequency adjustments.

11 is a diagram 1100 illustrating a third example resource configuration on a channel 806 of 20 MHz bandwidth in a WLAN. In resource configuration 1110, a 20 MHz bandwidth with 256 tones can be used. In this example, the 20 MHz bandwidth can include 3 RUs for communicating material (eg, RU-1 to RU-2 1116 and RU-3 1118). As an example, each of RU-1 through RU-2 1116 may have 114 tones. The 20 MHz bandwidth can include a left guard tone 1122 at the low end of the frequency and a right guard tone 1124 at the high end of the frequency. Left guard tone 1122 and right guard tone 1124 may include a predetermined number (eg, 11 or 9) of guard tones. Additionally, the 20 MHz bandwidth can include a number of DC tones 1120 at the center of the 20 MHz bandwidth. As an example, the number of DC tones 1120 can be determined to be 3 or 5. RU-3 1118 can be split into two parts, such as center RU-part-3A 1118A and center RU-part-3B 1118B, with one portion being lower than DC tone 1120 and the other portion being higher than DC tone 1120. Each of the center RU-part-3A 1118A and the center RU-part-3B 1118B may include 7 tones.

In resource configuration 1160, central RU-part-3A 1118A and central RU-part-3B 1118B are replaced by edge RU-part-3A 1168A and edge RU-part-3B 1168B as compared to resource configuration 1110. For example, RU-3 1168 is split into edge RU-part-3A 1168A and edge RU-part-3B 1168B, with one portion placed adjacent to left guard tone 1122 and the other portion placed adjacent to right guard tone 1124. Edge RU-port-3A 1168A is higher in frequency than left guard tone 1122, and edge RU-port-3B 1168B is lower in frequency than right guard tone 1124. In some configurations, the edge RU-portions -3A/3B 1168A, 1168B may not be used to convey material but may be used as an additional guard tone.

The instance resource configuration can be as follows. For a user, the user can use 242 tone resource subtle parameter design (eg, 234 data tones and 8 pilot tone tones), or the user can be assigned all RUs of the 20 MHz bandwidth (eg, RU-1 to RU-2 1116 and RU-3 1118). For two users, the first user can be assigned RU-1 to RU-2 1116 (for example, 2 RU), and the second user can be assigned a central RU-part-3A/3B 1118A, 1118B or edge RU-part-3A/3B 1168A, 1168B. For three users, the first user can be assigned 1 RU 1116, the second user can be assigned 1 RU 1116, and the third user can be assigned a central RU-part-3A/3B 1118A, 1118B or Edge RU-section-3A/3B 1168A, 1168B. It should be noted that the central RU-part-3A/3B 1118A, 1118B or the edge RU-part-3A/3B 1168A, 1168B may have a size of 14 tones, and the 14 tones may include 12 data. Tone and 2 pilot frequency adjustments.

12 is a diagram 1200 illustrating a first example resource configuration on a channel 806 of 40 MHz bandwidth in a WLAN. In resource configuration 1210, a 40 MHz bandwidth with 512 tones can be used. In this example, the 40 MHz bandwidth can include 16-19 RUs each having 26 tones for communicating material. As an example, FIG. 12 shows 19 RUs (eg, RU-1 to RU-18 1216 and RU-19 1218). Each of RU-1 to RU-18 1216 may have 26 tones. In addition, the 26 tones can include 24 data tones and 2 pilot tones. The 40 MHz bandwidth can include a left guard tone 1222 at the low end of the frequency and a right guard tone 1224 at the high end of the frequency. Left guard tone 1222 and right guard tone 1224 may include a predetermined number (eg, 11) of guard tones. Additionally, the 40 MHz bandwidth can include a number of DC tones 1220 at the center of the 40 MHz bandwidth. As an example, the number of DC tones 1220 can be determined to be 5 (or 7). The RU-19 1218 can be split into two parts, such as a center RU-part -19A 1218A and a center RU-part -19B 1218B, with one portion being lower than the DC tone 1220 and the other portion being above the DC tone 1220. Each of the center RU-portion 19A 1218A and the center RU-portion -19B 1218B may include 13 tones.

In resource configuration 1260, central RU-portion 19A 1218A and central RU-portion 19B 1218B are replaced by edge RU-portion 19A 1268A and edge RU-portion -19B 1268B as compared to resource configuration 1210. For example, RU-19 1268 is split into edge RU-portion 19A 1268A and edge RU-portion -19B 1268B, with one portion placed adjacent to left guard tone 1222 and the other portion placed adjacent to right guard tone 1224. Edge RU-portion -19A 1268A is higher in frequency than left guard tone 1222, and edge RU-portion -19B 1268B is lower in frequency than right guard tone 1224. In some configurations, the edge RU-portions -19A/19B 1268A, 1268B may not be used to convey material but may be used as an additional guard tone.

The instance resource configuration can be as follows. For a user, the user can use the 484 tone resource subtle parameter design (eg, 468 data tones and 16 pilot tone tones), or the user can be assigned all of the RUs of the 40 MHz bandwidth (eg, RU-1 to RU-18 1216 and RU-19 1218). For two users, the first user can be assigned RU-1 to RU-18 1216 (eg, 18 RUs), and the second user can be assigned a central RU-part -19A/19B 1218A, 1218B or edge RU-portion -19A/19B 1268A, 1268B (eg, 1 RU). For three users, the first user can be assigned 9 RUs 1216, the second user can be assigned 9 RUs 1216, and the third user can be assigned a central RU-part -19A/19B 1218A, 1218B or Edge RU-section -19A/19B 1268A, 1268B. It should be noted that the central RU-portion -19A/19B 1218A, 1218B or the edge RU-part -19A/19B 1268A, 1268B may have a size of 26 tones, and the 26 tones may include 24 data. Tone and 2 pilot frequency adjustments.

In another configuration, the center RU-portions -19A/19B 1218A, 1218B (or edge RU-portions -19A/19B 1268A, 1268B) can be expanded to include the tone of RU-9 1216 and RU-10 1216, respectively. In other words, RU-19 1216 and RU-10 1216 can be removed, and RU-19 1218 can have 78 tones.

13 is a diagram 1300 illustrating a second example resource configuration on a channel 806 of 40 MHz bandwidth in a WLAN. In resource configuration 1310, a 40 MHz bandwidth with 512 tones can be used. In this example, the 40 MHz bandwidth can include 9 RUs for communicating material (eg, RU-1 to RU-8 1316 and RU-9 1318). As an example, each of the RUs 1316 can have 56 tones. The 40 MHz bandwidth can include a left guard tone 1322 at the low end of the frequency and a right guard tone 1324 at the high end of the frequency. The left guard tone 1322 and the right guard tone 1324 together may include a predetermined number (eg, 11) of guard tones. Additionally, the 40 MHz bandwidth can include a number of DC tones 1320 at the center of the 40 MHz bandwidth. As an example, the number of DC tones 1320 can be determined to be 11. The RU-9 1318 can be split into two parts, such as the center RU-part-9A 1318A and the center RU-part-9B 1318B, one of which is lower in frequency than the DC tone 1320 and the other part is higher in frequency. The DC tone is 1320. Each of the center RU-part-9A 1318A and the center RU-part-9B 1318B may include 21 tones.

In resource configuration 1360, central RU-part-9A 1318A and central RU-part-9B 1318B are replaced by edge RU-part-9A 1368A and edge RU-part-9B 1368B as compared to resource configuration 1310. For example, RU-9 1368 is split into edge RU-part-9A 1368A and edge RU-part-9B 1368B, with one portion placed adjacent to left guard tone 1322 and the other portion placed Adjacent to the right protection tone 1324. Edge RU-port-9A 1368A is higher in frequency than left guard tone 1322, and edge RU-port-9B 1368B is lower in frequency than right guard tone 1324. In some configurations, the edges RU-9A/9B 1368A, 1368B may not be used to convey material but may be used as an additional protection tone.

The instance resource configuration can be as follows. For a user, the user can use the 484 tone resource subtle parameter design (eg, 468 data tones and 16 pilot tone tones), or the user can be assigned all of the RUs of the 40 MHz bandwidth (eg, RU-1 to RU-8 1316 and RU-9 1318). For two users, the first user can be assigned RU-1 to RU-8 1316 (eg, 8 RUs), and the second user can be assigned a center RU-9A/9B 1318A, 1318B or edge RU- 9A/9B 1368A, 1368B. For three users, the first user can be assigned 4 RUs 1316, the second user can be assigned 4 RUs 1316, and the third user can be assigned a center RU-9A/9B 1318A, 1318B or edge RU -9A/9B 1368A, 1368B. Various other combinations are possible. It is worth noting that a RU-9 1318 having a size of 42 tones can be equivalent to three 14 tone allocations. Each 14 tone allocation can include 12 data tones and 2 pilot tones.

14 is a diagram 1400 illustrating a third example resource configuration on a channel 806 of 40 MHz bandwidth in a WLAN. In resource configuration 1410, a 40 MHz bandwidth with 512 tones can be used. In this example, the 40 MHz bandwidth can include 5 RUs for communicating material (eg, RU-1 to RU-4 1416 and RU-5 1418). As an example, each of RU-1 through RU-4 1416 may have 114 tones. The 40 MHz bandwidth can include a left guard tone 1422 at the low end of the frequency and a right guard tone 1424 at the high end of the frequency. Left protection tone 1422 and right The guard tone 1424 can include a predetermined number (eg, 11 or 9) of guard tones. Additionally, the 40 MHz bandwidth can include a number of DC tones 1420 at the center of the 40 MHz bandwidth. As an example, the number of DC tones 1420 can be determined to be 3 or 5. The RU-5 1418 can be split into two parts, such as a center RU-part-5A 1418A and a center RU-part-5B 1418B, one of which is lower than the DC tone 1420 and the other is higher than the DC tone 1420. Each of the center RU-part-5A 1418A and the center RU-part-5B 1418B may include 21 tones.

In resource configuration 1460, central RU-part-5A 1418A and central RU-part-5B 1418B are replaced by edge RU-part-5A 1468A and edge RU-part-5B 1468B as compared to resource configuration 1410. For example, RU-5 1468 is split into edge RU-part-5A 1468A and edge RU-part-5B 1468B, with one portion placed adjacent to left guard tone 1422 and the other portion placed adjacent to right guard tone 1424. Edge RU-port-5A 1468A is higher in frequency than left guard tone 1422, and edge RU-port-5B 1468B is lower in frequency than right guard tone 1424.

In some configurations, the edge RU-portions -5A/5B 1468A, 1468B may not be used to convey material but may be used as an additional protection tone.

The instance resource configuration can be as follows. For a user, the user can use the 484 tone resource subtle parameter design (eg, 468 data tones and 16 pilot tone tones), or the user can be assigned all of the RUs of the 40 MHz bandwidth (eg, RU-1 to RU-4 1416 and RU-5 1418). For two users, the first user can be assigned RU-1 to RU-4 1416 (eg, 4 RUs), and the second user can be assigned a central RU-part-5A/5B 1418A, 1418B or edge RU-part-5A/5B 1468A, 1468B (for example, 1 RU) . For three users, the first user can be assigned 2 RUs 1416, the second user can be assigned 2 RUs 1416, and the third user can be assigned a central RU-part-5A/5B 1418A, 1418B or Edge RU-section-5A/5B 1468A, 1468B. Various other combinations are possible. It is worth noting that a RU-5 1418 having a size of 42 tones can be equivalent to three 14 tone allocations. Each 14 tone allocation can include 12 data tones and 2 pilot tones.

15 is a diagram 1500 illustrating a fourth example resource configuration on a channel 806 of 40 MHz bandwidth in a WLAN. In resource configuration 1510, a 40 MHz bandwidth with 512 tones can be used. In this example, the 40 MHz bandwidth can include 3 RUs for communicating material (eg, RU-1 to RU-2 1516 and RU-3 1518). As an example, each of RU-1 through RU-2 1516 may have 242 tones. In addition, the 242 tones can include 234 data tones and 8 pilot tones. The 40 MHz bandwidth can include a left guard tone 1522 at the low end of the frequency and a right guard tone 1524 at the high end of the frequency. Left guard tone 1522 and right guard tone 1524 may include a predetermined number (eg, 11 or 9) of guard tones. Additionally, the 40 MHz bandwidth can include a number of DC tones 1520 at the center of the 40 MHz bandwidth. As an example, the number of DC tones 1520 can be determined to be 3, 5 or more. The RU-3 1518 can be split into two parts, such as a center RU-part-3A 1518A and a center RU-part-3B 1518B, one of which is lower than the DC tone 1520 and the other is higher than the DC tone 1520. Each of the center RU-part-3A 1518A and the center RU-part-3B 1518B may include 7 tones.

In resource configuration 1560, central RU-part-3A 1518A and central RU-part-3B 1518B are replaced by edge RU-part-3A 1568A and edge RU-part-3B 1568B as compared to resource configuration 1510. For example, RU-3 1568 was demolished Divided into edge RU-portion-3A 1568A and edge RU-portion-3B 1568B, one portion is placed adjacent to left guard tone 1522 and the other portion is placed adjacent to right guard tone 1524. Edge RU-port-3A 1568A is higher in frequency than left guard tone 1522, and edge RU-port-3B 1568B is lower in frequency than right guard tone 1524. In some configurations, the edge RU-portions-3A/3B 1568A, 1568B may not be used to convey material but may be used as an additional protection tone.

The instance resource configuration can be as follows. For a user, the user can use the 484 tone resource subtle parameter design (eg, 468 data tones and 16 pilot tone tones), or the user can be assigned all of the RUs of the 40 MHz bandwidth (eg, RU-1 to RU-2 1516 and RU-3 1518). For two users, the first user can be assigned RU-1 to RU-2 1516 (eg 2 RUs) and the second user can be assigned a central RU-part-3A/3B 1518A, 1518B or edge RU-part-3A/3B 1568A, 1568B (eg, 1 RU). For three users, the first user can be assigned 1 RU 1516, the second user can be assigned 1 RU 1516, and the third user can be assigned a central RU-part-3A/3B 1518A, 1518B or Edge RU-part-3A/3B 1568A, 1568B. It should be noted that the central RU-part-3A/3B 1518A, 1518B or the edge RU-part-3A/3B 1568A, 1568B may have a size of 14 tones, and the 14 tones may include 12 data. Tone and 2 pilot frequency adjustments.

16 is a diagram 1600 illustrating a first exemplary resource configuration on a channel 806 of 80 MHz bandwidth in a WLAN. In resource configuration 1610, an 80 MHz bandwidth with 1024 tones can be used. In this example, the 80 MHz bandwidth can include 32 or more 26 tone RUs for communicating material. As an example, Figure 16 shows 33 RUs (e.g., RU-1 to RU-32 1616 and RU-33 1618). Each of RU-1 to RU-32 1616 may have 26 tones. In addition, the 26 tones can include 24 data tones and 2 pilot tones. The 80 MHz bandwidth can include a left guard tone 1622 at the low end of the frequency and a right guard tone 1624 at the high end of the frequency. Left guard tone 1622 and right guard tone 1624 may include a predetermined number (eg, 11) of guard tones. Additionally, the 80 MHz bandwidth can include a number of DC tones 1620 at the center of the 80 MHz bandwidth. As an example, the number of DC tones 1620 can be determined to be 11. RU-33 1618 can be split into two parts, such as center RU-part-33A 1618A and center RU-part-33B 1618B, with one portion being lower than DC tone 1620 and the other portion being higher than DC tone 1620. Each of the center RU-part-33A 1618A and the center RU-part-33B 1618B may include 85 tones.

In resource configuration 1660, central RU-part-33A 1618A and central RU-part-33B 1618B are replaced by edge RU-part-33A 1668A and edge RU-part-33B 1668B as compared to resource configuration 1610. For example, RU-33 1668 is split into edge RU-part-33A 1668A and edge RU-part-33B 1668B, with one portion placed adjacent to left guard tone 1622 and the other portion placed adjacent to right-protected tone 1624. The edge RU-portion-33A 1668A is higher in frequency than the left guard tone 1622, and the edge RU-portion-33B 1668B is lower in frequency than the right guard tone 1624. In some configurations, the edge RU-portions - 33A/33B 1668A, 1668B may not be used to convey material but may be used as an additional guard tone.

The instance resource configuration can be as follows. For a user, the user can use the 1024 tone resource subtle parameter design, or the user can be All RUs of the 80 MHz bandwidth are allocated (eg, RU-1 to RU-32 1616 and RU-33 1618). For two users, the first user can be assigned RU-1 to RU-32 1616 (eg, 32 RUs), and the second user can be assigned a central RU-part-33A/B 1618A, 1618B or edge RU-portion-33A/33B 1668A, 1668B (eg, 1 RU). For three users, the first user can be assigned 16 RUs 1616, the second user can be assigned 16 RUs 1616, and the third user can be assigned a central RU-part-33A/B 1618A, 1618B or Edge RU-section - 33A/33B 1668A, 1668B. It is worth noting that the central RU-portion-33A/B 1618A, 1618B or edge RU-part-33A/33B 1668A, 1668B, which together have a size of 170 tones, can be equivalent to a 114 tone allocation and a 56. Frequency allocation. The 114 tone allocation can include 108 data tones and 6 pilot tones. The 56 tone allocation can include 52 data tones and 4 pilot tones.

17 is a diagram 1700 illustrating a second example resource configuration on a channel 806 of 80 MHz bandwidth in a WLAN. In resource configuration 1710, an 80 MHz bandwidth with 1024 tones can be used. In this example, the 80 MHz bandwidth can include 16 or more 56 tone RUs for communicating material. As an example, Figure 17 shows 17 RUs (e.g., RU-1 to RU-16 1716 and RU-17 1718). Each of RU-1 to RU-16 1716 may have 56 tones. In addition, the 56 tones can include 52 data tones and 4 pilot tones. The 80 MHz bandwidth can include a left guard tone 1722 at the low end of the frequency and a right guard tone 1724 at the high end of the frequency. Left guard tone 1722 and right guard tone 1724 may include a predetermined number (eg, 11) of guard tones. Additionally, the 80 MHz bandwidth can include a number of DC tones 1720 at the center of the 80 MHz bandwidth. As an example The number of DC tones 1720 can be determined to be five. The RU-17 1718 can be split into two parts, such as a center RU-part-17A 1718A and a center RU-part-17B 1718B, one of which is lower than the DC tone 1720 and the other is higher than the DC tone 1720. Each of the center RU-part-17A 1718A and the center RU-part-17B 1718B may include 56 tones.

In resource configuration 1760, central RU-part-17A 1718A and central RU-part-17B 1718B are replaced by edge RU-part-17A 1768A and edge RU-part-17B 1768B as compared to resource configuration 1710. For example, RU-17 1768 is split into edge RU-part -17A 1768A and edge RU-part -17B 1768B, with one portion placed adjacent to left guard tone 1722 and the other portion placed adjacent to right guard tone 1724. Edge RU-port -17A 1768A is higher in frequency than left guard tone 1722, and edge RU-port -17B 1768B is lower in frequency than right guard tone 1724. In some configurations, the edge RU-portions -17A/17B 1768A, 1768B may not be used to convey material but may be used as an additional guard tone.

The instance resource configuration can be as follows. For a user, the user can use 1024 tone resource granularity design, or the user can be assigned all RUs of the 80MHz bandwidth (eg, RU-1 to RU-16 1716 and RU-17 1718) . For two users, the first user can be assigned RU-1 to RU-16 1716 (eg, 16 RUs), and the second user can be assigned a central RU-part -17A/17B 1718A, 1718B or edge RU-section -17A/17B 1768A, 1768B (eg, 1 RU). For three users, the first user can be assigned 8 RUs 1716, the second user can be assigned 8 RUs 1716, and the third user can be assigned a central RU-part -17A/17B 1718A, 1718B Or edge RU-section -17A/17B 1768A, 1768B. It is worth noting that the central RU-portions -17A/17B 1718A, 1718B or edge RU-portions -17A/17B 1768A, 1768B, which together have a size of 112 tones, may be equivalent to two 56 tone allocations. The 56 tone allocation can include 52 data tones and 4 pilot tones.

18 is a diagram 1800 illustrating a third example resource configuration on a channel 806 of 80 MHz bandwidth in a WLAN. In resource configuration 1810, an 80 MHz bandwidth with 1024 tones can be used. In this example, the 80 MHz bandwidth can include 9 RUs for communicating material (eg, RU-1 to RU-8 1816 and RU-9 1818). As an example, each of the RUs 1816 can have 114 tones. The 80 MHz bandwidth can include a left guard tone 1822 at the low end of the frequency and a right guard tone 1824 at the high end of the frequency. The left guard tone 1822 and the right guard tone 1824 together may include a predetermined number (eg, 11) of guard tones. Additionally, the 80 MHz bandwidth can include a number of DC tones 1820 at the center of the 80 MHz bandwidth. As an example, the number of DC tones 1820 can be determined to be five. The RU-9 1818 can be split into two parts, such as the center RU-part-9A 1818A and the center RU-part-9B 1818B, one of which is lower in frequency than the DC tone 1820 and the other part is higher in frequency. The DC tone is 1820. Each of the center RU-port-9A 1818A and the center RU-port-9B 1818B may include 48 tones.

In resource configuration 1860, central RU-part-9A 1818A and central RU-part-9B 1818B are replaced by edge RU-part-9A 1868A and edge RU-part-9B 1868B as compared to resource configuration 1810. For example, RU-9 1868 is split into edge RU-part-9A 1868A and edge RU-part-9B 1868B, with one portion placed adjacent to left guard tone 1822 and the other portion placed Adjacent to the right protection tone 1824. Edge RU-port-9A 1868A is higher in frequency than left guard tone 1822, and edge RU-port-9B 1868B is lower in frequency than right guard tone 1824. In some configurations, the edges RU-9A/9B 1868A, 1868B may not be used to convey material but may be used as an additional protection tone.

The instance resource configuration can be as follows. For a user, the user can use the 1024 tone resource granularity design, or the user can be assigned all RUs of the 80MHz bandwidth (eg, RU-1 to RU-8 1816 and RU-9 1818) . For two users, the first user can be assigned RU-1 to RU-8 1816 (eg, 8 RUs), and the second user can be assigned a center RU-9A/9B 1818A, 1818B or edge RU- 9A/9B 1868A, 1868B (eg, 1 RU). For three users, the first user can be assigned 4 RUs 1816, the second user can be assigned 4 RUs 1816, and the third user can be assigned a center RU-9A/9B 1818A, 1818B or edge RU -9A/9B 1868A, 1868B. Various other combinations are possible. It is worth noting that a RU-9 1818 having a size of 96 tones can be equivalent to a 56 tone allocation, a 26 tone allocation, and a 14 tone allocation. The 56 tone allocation can include 52 data tones and 4 pilot tones. The 26 tone allocation can include 24 data tones and 2 pilot tones. The 14 tone allocation can include 12 data tones and 2 pilot tones.

19 is a diagram 1900 illustrating a fourth example resource configuration on a channel 806 of 80 MHz bandwidth in a WLAN. In resource configuration 1910, an 80 MHz bandwidth with 1024 tones can be used. In this example, the 80 MHz bandwidth can include 5 RUs for communicating material (eg, RU-1 to RU-4 1916 and RU-5 1918). As an example, each of RU-1 through RU-4 1916 may have 242 tones. In addition, these 242 tones can include 234 data tones and 8 Guide the frequency adjustment. The 80 MHz bandwidth can include a left guard tone 1922 at the low end of the frequency and a right guard tone 1924 at the high end of the frequency. Left guard tone 1922 and right guard tone 1924 may include a predetermined number (eg, 11 or 9) of guard tones. Additionally, the 80 MHz bandwidth can include a number of DC tones 1920 at the center of the 80 MHz bandwidth. As an example, the number of DC tones 1920 can be determined to be 3 or 5. The RU-5 1918 can be split into two parts, such as a center RU-part-5A 1918A and a center RU-part-5B 1918B, one of which is below the DC tone 1920 and the other is above the DC tone 1920. Each of the center RU-part-5A 1918A and the center RU-part-5B 1918B may include 21 tones.

In resource configuration 1960, central RU-part-5A 1918A and central RU-part-5B 1918B are replaced by edge RU-part-5A 1968A and edge RU-part-5B 1968B as compared to resource configuration 1910. For example, RU-5 1968 is split into edge RU-part-5A 1968A and edge RU-part-5B 1968B, with one portion placed adjacent to the left guard tone 1922 and the other portion placed adjacent to the right guard tone 1924. Edge RU-port-5A 1968A is higher in frequency than left guard tone 1922, and edge RU-port-5B 1968B is lower in frequency than right guard tone 1924. In some configurations, the edge RU-portions-5A/5B 1968A, 1968B may not be used to convey material but may be used as an additional protection tone.

The instance resource configuration can be as follows. For a user, the user can use the 1024 tone resource granularity design, or the user can be assigned all RUs of the 80MHz bandwidth (eg, RU-1 to RU-4 1916 and RU-5 1918) . For two users, the first user can be assigned RU-1 to RU-4 1916 (eg, 4 RUs), and the second user can be assigned a center RU-part-5A/5B 1918A, 1918B or edge RU-part-5A/5B 1968A, 1968B (for example, 1 RU). For three users, the first user can be assigned 2 RUs 1916, the second user can be assigned 2 RUs 1916, and the third user can be assigned a central RU-part-5A/5B 1918A, 1918B or Edge RU-part-5A/5B 1968A, 1968B. Various other combinations are possible. It is worth noting that a RU-5 1918 having a size of 42 tones can be equivalent to three 14 tone allocations. Each 14 tone allocation can include 12 data tones and 2 pilot tones.

20 is a diagram 2000 illustrating a fifth example resource configuration on a channel 806 of 80 MHz bandwidth in a WLAN. In resource configuration 2010, an 80 MHz bandwidth with 1024 tones can be used. In this example, the 80 MHz bandwidth can include 3 RUs for communicating material (eg, RU-1 to RU-2 2016 and RU-3 2018). As an example, each of RU-1 through RU-2 2016 may have 484 tones. In addition, the 484 tones can include 468 data tones and 16 pilot tones. The 80 MHz bandwidth can include a left guard tone 2022 at the low end of the frequency and a right guard tone 2024 at the high end of the frequency. Left guard tone 2022 and right guard tone 2024 may include a predetermined number (eg, 11 or 9) of guard tones. Additionally, the 80 MHz bandwidth can include a number of DC tones 2020 at the center of the 80 MHz bandwidth. As an example, the number of DC tones 2020 can be determined to be 3 or 5. RU-3 2018 can be split into two parts, such as center RU-part-3A 2018A and center RU-part-3B 2018B, with one portion being lower than DC tone 2020 and the other portion being higher than DC tone 2020. Each of the center RU-part-3A 2018A and the center RU-part-3B 2018B may include 21 tones or 13 tones.

In resource configuration 2060, central RU-part-3A 2018A and central RU-part-3B 2018B are replaced by edge RU-part-3A 2068A and edge RU-part-3B 2068B compared to resource configuration 2010. For example, RU-3 2068 was demolished Divided into edge RU-part-3A 2068A and edge RU-part-3B 2068B, one portion is placed adjacent to left guard tone 2022 and the other portion is placed adjacent to right guard tone 2024. Edge RU-port-3A 2068A is higher in frequency than left guard tone 2022, and edge RU-port-3B 2068B is lower in frequency than right guard tone 2024. In some configurations, edge RU-portions-3A/3B 2068A, 2068B may not be used to convey material but may be used as an additional guard tone.

The instance resource configuration can be as follows. For a user, the user can design with 1024 tone resource granularity parameters, or the user can be assigned all RUs of the 80MHz bandwidth (eg, RU-1 to RU-2 2016 and RU-3 2018) . For two users, the first user can be assigned RU-1 to RU-2 2016 (eg 2 RUs) and the second user can be assigned a central RU-part-3A/3B 2018A, 2018B or edge RU-part-3A/3B 2068A, 2068B (eg, 1 RU). For three users, the first user can be assigned 1 RU 2016, the second user can be assigned 1 RU 2016, and the third user can be assigned the center RU-part-3A/3B 2018A, 2018B or Edge RU-section-3A/3B 2068A, 2068B. It is worth noting that in some configurations, the central RU-portion-3A/3B 2018A, 2018B or edge RU-section-3A/3B 2068A, 2068B may together have a size of 42 tones, which may be equivalent to Three 14 tone assignments. The 14 tone allocation can include 12 data tones and 2 pilot tones. In some configurations, the central RU-portion-3A/3B 2018A, 2018B or edge RU-part-3A/3B 2068A, 2068B may together have a size of 26 tones, and the 26 tones may include 24 Data tone and 2 pilot frequency adjustments.

21 is a flow diagram of an example method 2100 of allocating bandwidth resources on a channel in a WLAN. The method can be by a wireless device (eg, a wireless device) 804. The wireless device 202/equipment 2402) executes. The bandwidth can include a plurality of tones. The plurality of tones includes a plurality of guard tones located at an outer edge portion of the bandwidth and a plurality of DC tones at a central portion of the bandwidth.

In one aspect, the wireless device is an AP. In some configurations, at operation 2112, the wireless device allocates the plurality of tones in addition to the guard tone and the DC tone in the transmission period to the set of RUs that extend across the channel bandwidth. Each RU of the set of RUs includes at least 26 tones. At operation 2114, the wireless device allocates a plurality of subsets of the set of RUs for communicating with a plurality of STAs. At operation 2116, the wireless device transmits a frame to the plurality of STAs. The frame includes information indicating the allocation of the plurality of subsets. At operation 2120, the wireless device determines a first subset of RUs in the set of RUs for communicating with the first STA based on the allocation of the plurality of subsets. The first RU subset includes fewer RUs than the set of RUs. At operation 2122, the wireless device communicates with the first STA in at least one of the data or control information in the first RU subset.

In some configurations, at operation 2124, the wireless device determines a second subset of RUs of the set of RUs for communicating with a second of the plurality of STAs based on the allocation of the plurality of subsets. The second RU subset includes fewer RUs than the RU set. At operation 2126, the wireless device communicates with at least one of the data or control information with the second STA in the second RU subset. In some configurations, communication with the first STA and communication with the second STA are concurrent.

In another aspect, the wireless device can be a STA. At operation 2152, the wireless device receives a frame, the frame including information indicating an assignment of the first subset of the set of RUs for communicating with the wireless device. The first subset is determined based on the allocation. At operation 2154, the wireless device is based on the plurality of subsets The allocation determines a first subset of RUs in the set of RUs for communicating with the first STA. The first RU subset includes fewer RUs than the set of RUs. At operation 2156, the wireless device communicates with the first STA in at least one of data or control information in the first RU subset.

For example, referring to FIG. 8, wireless device 804 divides channel 806 into K RUs 816. The wireless device 804 uses the particular RU 816 that is assigned to communicate with the particular wireless device 808 to communicate with the particular wireless device 808 for data.

In some configurations, the RUs in the set of RUs have a size of at least one of 26, 242, or 484 tones. For example, referring to Figure 9, channel 806 includes RU 916 each having 26 tones. Referring to Figure 15, channel 806 includes RUs 1516 each having 242 tones. Referring to Figure 20, channel 806 includes RU 2016 each having 484 tones.

In some configurations, for each RU that includes 26 tones in the set of RUs, the 26 tones include 24 data tones and 2 pilot tones. For example, referring to Figures 9, 12 and 16, channel 806 includes RUs each having 26 tones. In some configurations, for each RU that includes 242 tones in the set of RUs, the 242 tones include 234 data tones and 8 pilot tones. For example, referring to Figures 15 and 19, channel 806 includes RUs each having 242 tones. In some configurations, for each RU that includes 484 tones in the set of RUs, the 484 tones include 468 data tones and 16 pilot tones. For example, referring to Figure 19, channel 806 includes RUs 2016 each having 484 tones.

In some configurations, the bandwidth is 20 MHz, 40 MHz, or 80 MHz. In some configurations, the bandwidth is 20MHz. The RU set includes 9 RUs. Each RU of the set of RUs includes 26 tones. The channel includes several DC tones . One RU in the set of RUs includes a first part and a second part. The first portion is higher in frequency than the plurality of DC tones, and the second portion is lower in frequency than the plurality of DC tones. For example, referring to Figure 9, channel 806 includes nine RUs each having 26 tones. The RU-9 918 can be split into two parts, a central RU-part-9A 918A and a central RU-part-9B 918B, one of which is lower in frequency than the DC tone 920 and the other part is higher in frequency. DC tone 920. Each of the center RU-port-9A 918A and the center RU-port-9B 918B may include 13 tones.

In some configurations, the bandwidth is 40MHz. The set of RUs includes 16, 17, 18 or 19 RUs. Each RU of the set of RUs includes 26 tones. In some configurations, the channel includes five or more DC tones. In some configurations, the RU set includes 18 RUs. For example, referring to Figure 12, channel 806 includes 16-19 RUs each having 26 tones and 5 or more DC tones. In some configurations, the bandwidth is 40MHz. The RU set includes 2 RUs. Each RU of the set of RUs includes 242 tones. In some configurations, the channel includes five or more DC tones. For example, referring to Figure 15, channel 806 includes two RUs 1516 each having 242 tones and five or more DC tones.

In some configurations, the bandwidth is 80MHz. The RU set includes 32 or more RUs. Each RU of the set of RUs includes 26 tones. In some configurations, the RU set includes 37 RUs. For example, referring to Figure 16, channel 806 includes 32 or more RUs each having 26 tones. In some configurations, the bandwidth is 80MHz. The RU set includes 4 RUs. Each RU of the set of RUs includes 242 tones. For example, referring to Figure 19, channel 806 includes four RUs 1916 each having 242 tones. In some configurations, the bandwidth is 80MHz. The RU collection Includes 2 RUs. Each RU of the set of RUs includes 484 tones. For example, referring to Figure 20, channel 806 includes two RUs each having 484 tones.

22 is a flow diagram of an example method 2200 of allocating bandwidth resources to at least one station (e.g., STAs 112, 114, 116, or 118) for communication. The bandwidth includes a plurality of tones. The plurality of tones includes a plurality of guard tones located at an outer edge portion of the bandwidth and a plurality of DC tones located at a central portion of the bandwidth. Method 2200 can be performed using a device (eg, AP 104 or wireless device 202). Although method 2200 is described below with respect to components of wireless device 202 of FIG. 2, other components may be used to implement one or more of the steps described herein.

At operation 2205, the device allocates at least one RU to the at least one station for communication. Each RU includes a number of RU tones in the plurality of tones.

At operation 2210, the apparatus assigns to the at least one station a center RU comprising a plurality of center RU temps of the plurality of tones for communication. The number of center RU tones is based on the number of the plurality of tones of the bandwidth and the number of RU tones. The RU tone can be located between the guard tone of the bandwidth and the center RU tone, and the center RU tone can be located between the RU tone and the DC tone of the bandwidth. At operation 2215, the device determines the number of guard tones and the number of DC tones based on the number of center RU tones.

Alternatively, after performing the operation at operation 2205, the device proceeds to operation 2225. At operation 2225, the apparatus assigns an edge RU pair to the at least one station for communication, the edge RU pair including a plurality of edge RU in the plurality of tones. The number of edge RU tones is based on the bandwidth of the plurality of tones The number and the number of RU tones. The RU tone can be located between the edge RU tone and the DC tone of the bandwidth, and the edge RU tone can be located between the guard tone of the bandwidth and the RU tone. At operation 2230, the device determines the number of guard tones and the number of DC tones based on the number of edge RU tones.

After performing the operations at operation 2215 or operation 2230, the device proceeds to operation 2220. At operation 2220, the apparatus communicates via the number of the plurality of tones indicating the bandwidth, the number of RUs allocated for communication, the number of RU tones per RU, the number of guard tones, and/or the number of DC tones. The at least one station indicates the allocated resource.

In one aspect, the number of the plurality of tones of the bandwidth is 256, the number of RUs allocated for communication is 8, the number of RUs for each RU is 26, the number of protection tones is 11, and the DC tone is The number is 11, and the number of center RU/edge RU tones for the center RU/edge RU pair is 26.

In another aspect, the number of the plurality of tones of the bandwidth is 256, the number of RUs allocated for communication is 4, the number of RU tones of each RU is 56, the number of protection tones is 11, DC frequency The number of tune is 7, and the number of center RU/edge RU tones for the center RU/edge RU pair is 14.

In another aspect, the number of the plurality of tones of the bandwidth is 256, the number of RUs allocated for communication is 2, the number of RU tones of each RU is 114, the number of protection tones is 11, DC frequency The number of tune is 3, and the number of center RU/edge RU tones for the center RU/edge RU pair is 14.

In another aspect, the number of the plurality of tones of the bandwidth is 256, the number of RUs allocated for communication is 2, the number of RU tones of each RU is 114, the number of protection tones is 9, DC frequency The number of adjustments is 5, and the center RU/edge RU pair The number of center RU/edge RU tones is 14.

In another aspect, the number of the plurality of tones of the bandwidth is 512, the number of RUs allocated for communication is 16, the number of RUs for each RU is 26, the number of protection tones is 11, DC frequency The number of tune is 7, and the number of center RU/edge RU tones for the center RU/edge RU pair is 78.

In another aspect, the number of the plurality of tones of the bandwidth is 512, the number of RUs allocated for communication is 8, the number of RUs for each RU is 56, the number of protection tones is 11, DC frequency The number of tune is 11, and the number of center RU/edge RU tones for the center RU/edge RU pair is 42.

In another aspect, the number of the plurality of tones of the bandwidth is 512, the number of RUs allocated for communication is 4, the number of RU tones of each RU is 114, the number of protection tones is 11, DC frequency The number of tune is 3, and the number of center RU/edge RU tones for the center RU/edge RU pair is 42.

In another aspect, the number of the plurality of tones of the bandwidth is 512, the number of RUs allocated for communication is 4, the number of RU tones of each RU is 114, the number of protection tones is 9, DC frequency The number of tones is 5, and the number of center RU/edge RU tones for the center RU/edge RU pair is 42.

In another aspect, the number of the plurality of tones of the bandwidth is 512, the number of RUs allocated for communication is 2, the number of RU tones of each RU is 242, the number of protection tones is 11, DC frequency The number of tune is 3, and the number of center RU/edge RU tones for the center RU/edge RU pair is 14.

In another aspect, the number of the plurality of tones of the bandwidth is 512, the number of RUs allocated for communication is 2, the number of RU tones of each RU is 242, the number of protection tones is 9, DC frequency The number of adjustments is 5, and the center RU/edge RU pair The number of center RU/edge RU tones is 14.

In another aspect, the number of the plurality of tones of the bandwidth is 1024, the number of RUs allocated for communication is 32, the number of RU tones of each RU is 26, the number of protection tones is 11, DC frequency The number of tune is 11, and the number of center RU/edge RU tones for the center RU/edge RU pair is 170.

In another aspect, the number of the plurality of tones of the bandwidth is 1024, the number of RUs allocated for communication is 16, the number of RU tones of each RU is 56, the number of protection tones is 11, DC frequency The number of tones is 5, and the number of center RU/edge RU tones for the center RU/edge RU pair is 112.

In another aspect, the number of the plurality of tones of the bandwidth is 1024, the number of RUs allocated for communication is 8, the number of RUs for each RU is 114, the number of protection tones is 11, DC frequency The number of tune is 5, and the number of center RU/edge RU tones for the center RU/edge RU pair is 96.

In another aspect, the number of the plurality of tones of the bandwidth is 1024, the number of RUs allocated for communication is 4, the number of RU tones of each RU is 242, the number of protection tones is 11, DC frequency The number of tune is 3, and the number of center RU/edge RU tones for the center RU/edge RU pair is 42.

In another aspect, the number of the plurality of tones of the bandwidth is 1024, the number of RUs allocated for communication is 4, the number of RU tones of each RU is 242, the number of protection tones is 9, DC frequency The number of tones is 5, and the number of center RU/edge RU tones for the center RU/edge RU pair is 42.

In another aspect, the number of the plurality of tones of the bandwidth is 1024, the number of RUs allocated for communication is 2, the number of RU tones of each RU is 484, the number of protection tones is 11, DC frequency The number of adjustments is 3, and the center RU/edge RU The number of center RU/edge RU tones for the pair is 42.

In another aspect, the number of the plurality of tones of the bandwidth is 1024, the number of RUs allocated for communication is 2, the number of RU tones of each RU is 484, the number of protection tones is 9, DC frequency The number of tones is 5, and the number of center RU/edge RU tones for the center RU/edge RU pair is 42.

23 is a flow diagram of an example method 2300 of determining a resource configuration of a bandwidth to communicate with an access point (e.g., AP 104). The bandwidth includes a plurality of tones. The plurality of tones includes a plurality of guard tones located at an outer edge portion of the bandwidth and a plurality of direct current (DC) tones at a central portion of the bandwidth. Method 2300 can be performed using a device (eg, any of STAs 112, 114, 116, or 118 or wireless device 202). Although method 2300 is described below with respect to components of wireless device 202 of FIG. 2, other components may be used to implement one or more of the steps described herein.

At operation 2305, the device receives from the access point (e.g., AP 104) the number of the plurality of tones with respect to the bandwidth, the number of RUs allocated for communication, the number of RU tones per RU, the guard tone An indication of the number, and the number of DC tones.

At operation 2310, the apparatus determines the allocation based on the number of the plurality of tones of the bandwidth, the number of RUs allocated for communication, the number of RU tones per RU, the number of guard tones, and the number of DC tones. The number of central RU tones used for central operations of communication. For example, the device may determine the number of tone of the assigned center RU when it is expected to receive an acknowledgement (ACK) message. The RU tone can be located between the guard tone of the bandwidth and the center RU tone, and the center RU tone can be located between the RU tone and the DC tone of the bandwidth.

Alternatively, after performing the operations at operation 2305, the device may proceed to operation 2315. At operation 2315, the apparatus determines the allocation based on the number of the plurality of tones of the bandwidth, the number of RUs allocated for communication, the number of RU tones per RU, the number of guard tones, and the number of DC tones. The number of edge RU tones for the edge RU pair used for communication. For example, the device may determine the number of allocated edge RU tones when it is expected to receive an acknowledgment (ACK) message. The RU tone can be located between the edge RU tone and the DC tone of the bandwidth, and the edge RU tone can be located between the guard tone of the bandwidth and the RU tone.

24 is a conceptual data stream diagram 2400 illustrating data streams between different components/devices in an example equipment 2402. The equipment can be a wireless device. The equipment includes a receiving component 2404, a tone mapping component 2406, a data application 2407, a channel allocation component 2408, and a transmitting component 2410.

Receive component 2404 and transport component 2410 can be configured to communicate with data packet 2432 and data packet 2442 with at least one wireless device 2450 over a wide frequency channel. The bandwidth can include a plurality of tones. The plurality of tones includes a plurality of guard tones located at an outer edge portion of the bandwidth and a plurality of DC tones at a central portion of the bandwidth.

In one aspect, the equipment 2402 can be an AP. The tone mapping component 2406 can be configured to receive channel information 2434 from the channel allocation component 2408. Channel information 2434 may include information about the bandwidth. The tone mapping component 2406 can be configured to determine a channel allocation that divides the channel bandwidth in the transmission period into a set of RUs for data communication. Each RU of the set of RUs includes at least 26 tones. For example, the tone mapping component 2406 can be configured to assign the plurality of tones in addition to the guard tone and the DC tone to the traverse in the transmission period A collection of RUs with a wide bandwidth. The tone mapping component 2406 can be configured to transmit information about the determined tone map (e.g., tone map information 2436) to the channel assignment component 2408.

Channel assignment component 2408 can be configured to allocate a respective subset of the set of RUs for communicating with each of the at least one wireless device 2450. Each of the individual RU subsets includes fewer RUs than the set of RUs. Channel assignment component 2408 can be configured to send frame 2462 to transport component 2410. Frame 2462 includes information indicating the allocation of the plurality of subsets. The transmitting component 2410 transmits the frame 2462 to the at least one wireless device 2450. The channel assignment component 2408 can be configured to communicate with each of the wireless devices 2450 for data received from the profile application 2407 in a respective subset of RUs that are configured for communication with each of the at least one wireless device 2450. . The at least one wireless device 2450 can include a plurality of wireless devices 2450.

In another aspect, the equipment 2402 can be a STA. A particular wireless device 2450 can be an AP. The receiving component 2404 can be configured to receive a frame 2464 that includes information indicating an assignment of a particular subset of the set of RUs. Receive component 2404 can be configured to send the frame 2464 to channel assignment component 2408. Channel allocation component 2408, in turn, instructs receiving component 2404 and transmitting component 2410 to communicate with particular wireless device 2450 via the use of the particular subset of RUs.

More specifically, receiving component 2404 can be configured to receive one or more data packets 2432 (eg, one or more physical layer packets 700) from a particular wireless device 2450. The receiving component 2404 can be configured to send the data packet 2432 to the channel allocation component 2408. Channel allocation component 2408 determines the allocation for use with a particular wireless based on tone mapping information 2436 received from tone mapping component 2406. The one or more specific RUs that the device 2450 communicates with. Thus, channel allocation component 2408 can obtain data 2440 from data packets 2432 of a particular wireless device 2450 carried in those particular RUs. Channel assignment component 2408 can be configured to transmit material 2440 received from a particular wireless device 2450 to profile application 2407. In addition, the profile application 2407 can send the data 2440 to be transmitted to the particular wireless device 2450 to the channel assignment component 2408. Channel allocation component 2408 can be configured to construct one or more data packets 2442 (eg, one or more physical layer packets 700) with a particular RU allocated for communication with a particular wireless device 2450. These specific RUs include data 2440 to be transmitted to a particular wireless device 2450. The channel allocation component 2408 can be configured to send the data packet 2442 to the transmitting component 2410, which in turn transmits the data packet 2442 to the particular wireless device 2450.

In some configurations, the RUs in the set of RUs have a size of at least one of 26, 242, or 484 tones. In some configurations, for each RU that includes 26 tones in the set of RUs, the 26 tones include 24 data tones and 2 pilot tones. In some configurations, for each RU that includes 242 tones in the set of RUs, the 242 tones include 234 data tones and 8 pilot tones. In some configurations, for each RU that includes 484 tones in the set of RUs, the 484 tones include 468 data tones and 16 pilot tones.

In some configurations, the bandwidth is 20 MHz, 40 MHz, or 80 MHz. In some configurations, the bandwidth is 20MHz. The RU set includes 9 RUs. Each RU of the set of RUs includes 26 tones. The channel includes several DC tones. One RU in the set of RUs includes a first part and a second part. The first portion is higher in frequency than the plurality of DC tones, and the second portion is lower in frequency than the plurality of DC tones.

In some configurations, the bandwidth is 40MHz. The set of RUs includes 16, 17, 18 or 19 RUs. Each RU of the set of RUs includes 26 tones. In some configurations, the channel includes five or more DC tones. In some configurations, the RU set includes 18 RUs. In some configurations, the bandwidth is 40MHz. The RU set includes 2 RUs. Each RU of the set of RUs includes 242 tones. In some configurations, the channel includes five or more DC tones.

In some configurations, the bandwidth is 80MHz. The RU set includes 32 or more RUs. Each RU of the set of RUs includes 26 tones. In some configurations, the RU set includes 37 RUs. In some configurations, the bandwidth is 80MHz. The RU set includes 4 RUs. Each RU of the set of RUs includes 242 tones. In some configurations, the bandwidth is 80MHz. The RU set includes 2 RUs. Each RU of the set of RUs includes 484 tones.

The apparatus may include additional components that perform each of the blocks of the algorithm in the aforementioned flow charts of Figures 21-23. As such, each of the foregoing flowcharts of Figures 21-23 can be performed by a component and the apparatus can include one or more of these components. Each component may be one or more hardware components specifically configured to implement the program/algorithm, implemented by a processor configured to execute the program/algorithm, stored in a computer readable medium for processing Implemented, or some combination thereof.

The tone mapping component 2406 and the channel allocation component 2408 can form the resource configuration component 224 shown in FIG. The resource configuration component 224 can employ the processor 204, the memory 206, the signal detector 218, the DSP 220, and/or the user interface 222. Receive component 2404 and transport component 2410 can employ processor 204, memory 206, signal detector 218, and/or DSP 220. Transceiver 214 from one or A plurality of antennas 216 receive signals, extract information from the received signals, and provide the extracted information to receiving component 2404. In addition, transceiver 214 receives information from the VT and generates signals to be applied to the one or more antennas 216 based on the received information.

In one aspect, the wireless device 202/equipment 2402 can be a wireless device. The wireless device 202/equipment 2402 can be configured to include means for performing the operations illustrated in Figures 21-23. More specifically, the wireless device 202/equipment 2402 can be configured to include means for determining a first subset of RUs of resource element (RU) sets extending across a channel bandwidth in a transmission period, the first subset of RUs comprising less than The RU of the RU set, each RU of the set of RUs includes at least 26 tones. The wireless device 202/equipment 2402 can be configured to include means for communicating of at least one of data or control information in the first RU subset.

In some configurations, the bandwidth includes a plurality of tones, and wherein the plurality of tones includes a plurality of guard tones located at an outer edge portion of the bandwidth and a plurality of direct current (DC) frequencies at a central portion of the bandwidth Tune.

In some configurations, the wireless device 202/equipment 2402 is an AP. The wireless device 202/equipment 2402 can be configured to include means for assigning the plurality of tones in addition to the guard tone and the DC tone to the set of RUs in the transmission period. The wireless device 202/equipment 2402 can be configured to include means for allocating a plurality of subsets of the set of RUs for communicating with a plurality of STAs. The first subset is for communication with the first STA and is determined based on the allocation of the plurality of subsets. Communication of at least one of the data or control information performed in the first subset is performed with the first STA. In some configurations, the wireless device 202/equipment 2402 can be configured to include means for transmitting frames to the plurality of STAs. The frame includes Information indicating the allocation of the plurality of subsets.

In some configurations, the wireless device 202/equipment 2402 can be configured to include a second RU for communicating with a second one of the plurality of STAs in the set of RUs based on the allocation of the plurality of subsets The subset of devices, the second RU subset including less than the RU of the RU set. The wireless device 202/equipment 2402 can be configured to include means for communicating with at least one of data or control information with the second STA in the second RU subset. In some configurations, communication with the first STA and communication with the second STA are concurrent.

In some configurations, the wireless device 202/equipment 2402 is a STA. The wireless device 202/equipment 2402 can be configured to include means for receiving a frame including information indicative of the allocation of the first subset of the set of RUs for communication with the wireless device 202/equipment 2402. The first subset is determined based on the allocation.

In some configurations, the RUs in the set of RUs have a size of at least one of 26, 242, or 484 tones. In some configurations, for each RU that includes 26 tones in the set of RUs, the 26 tones include 24 data tones and 2 pilot tones. In some configurations, for each RU that includes 242 tones in the set of RUs, the 242 tones include 234 data tones and 8 pilot tones. In some configurations, for each RU that includes 484 tones in the set of RUs, the 484 tones include 468 data tones and 16 pilot tones.

In some configurations, the bandwidth is 20 MHz, 40 MHz, or 80 MHz. In some configurations, the bandwidth is 20MHz. The RU set includes 9 RUs. Each RU of the set of RUs includes 26 tones. The channel includes several DC tones. One RU in the set of RUs includes a first part and a second part. The first portion is higher in frequency than the plurality of DC tones, and the second portion is lower in frequency than the plurality of DC tone.

In some configurations, the bandwidth is 40MHz. The set of RUs includes 16, 17, 18 or 19 RUs. Each RU of the set of RUs includes 26 tones. In some configurations, the channel includes five or more DC tones. In some configurations, the RU set includes 18 RUs. In some configurations, the bandwidth is 40MHz. The RU set includes 2 RUs. Each RU of the set of RUs includes 242 tones. In some configurations, the channel includes five or more DC tones.

In some configurations, the bandwidth is 80MHz. The RU set includes 32 or more RUs. Each RU of the set of RUs includes 26 tones. In some configurations, the RU set includes 37 RUs. In some configurations, the bandwidth is 80MHz. The RU set includes 4 RUs. Each RU of the set of RUs includes 242 tones. In some configurations, the bandwidth is 80MHz. The RU set includes 2 RUs. Each RU of the set of RUs includes 484 tones.

The aforementioned means may be one or more of the aforementioned components of the wireless device 202/equipment 2402 that are configured to perform the functions recited by the aforementioned means. The various operations of the methods described above may be performed by any suitable means capable of performing such operations, such as various hardware and/or software components, circuits, and/or modules. In general, any of the operations illustrated in the figures can be performed by a corresponding functional device capable of performing the operations.

25 is a functional block diagram of an example wireless communication device 2500. Wireless communication device 2500 can be implemented as an AP (e.g., AP 104) or a station (e.g., STA 112, 114, 116, or 118). Wireless communication device 2500 can include a receiver 2505, a processing system 2510, and a transmitter 2515. Processing system 2510 can include resource configuration component 2524.

Processing system 2510 and/or resource configuration component 2524 can be configured to allocate bandwidth resources to at least one station (e.g., STAs 112, 114, 116, or 118) for communication. The bandwidth can include a plurality of tones. The plurality of tones includes a plurality of guard tones located at an outer edge portion of the bandwidth and a plurality of DC tones at a central portion of the bandwidth.

Processing system 2510 and/or resource configuration component 2524 can be configured to assign at least one RU to the at least one station for communication. Each RU includes a number of RU tones in the plurality of tones. Processing system 2510 and/or resource configuration component 2524 can be further configured to assign to the at least one station a central RU comprising a plurality of central RU tones of the plurality of tones for communication. The number of center RU tones may be based on the number of the plurality of tones of the bandwidth and the number of RU tones. The RU tone can be located between the guard tone of the bandwidth and the center RU tone, and the center RU tone can be located between the RU tone and the DC tone of the bandwidth. Processing system 2510 and/or resource configuration component 2524 can also be configured to determine the number of guard tones and the number of DC tones based on the number of center RU tones.

Processing system 2510 and/or resource configuration component 2524 can be configured to assign an edge RU pair to the at least one station for communication, the edge RU pair including a plurality of edge RU tones of the plurality of tones. The number of edge RU tones may be based on the number of the plurality of tones of the bandwidth and the number of RU tones. The RU tone can be located between the edge RU tone and the DC tone of the bandwidth, and the edge RU tone can be located between the guard tone of the bandwidth and the RU tone. Processing system 2510 and/or resource configuration component 2524 can also be configured to determine the number of guard tones and the number of DC tones based on the number of edge RU tones.

Transmitter 2515, processing system 2510, and/or resource configuration component 2524 The at least one of the plurality of tones indicating the bandwidth, the number of RUs allocated for communication, the number of RU tones per RU, the number of guard tones, and/or the number of DC tones may be configured to A station indicates the allocated resources.

In one aspect, processing system 2510 and/or resource configuration component 2524 can be configured to determine a resource configuration of the bandwidth to communicate with an access point (e.g., AP 104). The bandwidth can include a plurality of tones. The plurality of tones includes a plurality of guard tones located at an outer edge portion of the bandwidth and a plurality of direct current (DC) tones at a central portion of the bandwidth.

Receiver 2505, processing system 2510, and/or resource configuration component 2524 can be configured to receive from the access point (e.g., AP 104) the number of the plurality of tones with respect to the bandwidth, the standard blocks allocated for communication ( The number of RUs, the number of RU tones per standard block (RU), the number of guard tones, and the number of DC tones.

Processing system 2510 and/or resource configuration component 2524 can be configured to be based on the number of the plurality of tones of the bandwidth, the number of RUs allocated for communication, the number of RU tones per RU, the number of guard tones, and The number of DC tones determines the number of center block (center RU) tones that are allocated for the center block of the communication. The RU tone can be located between the guard tone of the bandwidth and the center RU tone, and the center RU tone can be located between the RU tone and the DC tone of the bandwidth.

Processing system 2510 and/or resource configuration component 2524 can be configured to be based on the number of the plurality of tones of the bandwidth, the number of RUs allocated for communication, the number of RU tones per RU, the number of guard tones, and The number of DC tones determines the number of edge RU tones that are allocated for the edge block pair for communication. The RU tone can be located between the edge RU tone and the DC tone of the bandwidth, and the edge RU frequency The adjustment can be between the guard tone of the bandwidth and the RU tone.

Receiver 2505, processing system 2510, resource configuration component 2524, and/or transmitter 2515 can be configured to perform one or more of the functions discussed above with respect to Figures 21-23. Receiver 2505 can correspond to receiver 212. Processing system 2510 can correspond to processor 204. Transmitter 2515 can correspond to transmitter 210. Resource configuration component 2524 may correspond to resource configuration component 124 (of AP 104), resource configuration component 126 (of STA 114), and/or resource configuration component 224 (of wireless device 202).

Moreover, means for allocating bandwidth resources to at least one station for communication can include processing system 2510 and/or resource configuration component 2524. The means for indicating the allocated resources to the at least one station may include a transmitter 2515, a processing system 2510, and/or a resource configuration component 2524. The means for determining the bandwidth resource configuration for communicating with the access point may include a receiver 2505, a processing system 2510, and/or a resource configuration component 2524.

The various operations of the methods described above may be performed by any suitable means capable of performing such operations, such as various hardware and/or software components, circuits, and/or modules. In general, any of the operations illustrated in the figures can be performed by a corresponding functional device capable of performing the operations.

The various illustrative logic blocks, components and circuits described in connection with the present disclosure can be implemented as general purpose processors, digital signal processors (DSPs), special application integrated circuits (ASICs), field programmable gates designed to perform the functions described herein. Arrays (FPGAs) or other programmable logic devices (PLDs), individual gate or transistor logic, individual hardware components, or any combination thereof are implemented or executed. A general purpose processor can be a microprocessor, but in the alternative, where The processor can be any commercially available processor, controller, microcontroller or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

In one or more aspects, the functions described can be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions can be stored on or transmitted as computer readable media as one or more instructions or codes. Computer readable media includes both computer storage media and communication media, including any media that facilitates the transfer of a computer program from one location to another. The storage medium can be any available media that can be accessed by the computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or may be used to carry or store instructions or data structures. Any other medium that expects code and can be accessed by a computer. Any connection is also properly referred to as computer readable media. For example, if the software is transmitted from a web site, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave. The coaxial cable, fiber optic cable, twisted pair cable, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of the media. Disks and discs as used herein include compact discs (CDs), laser discs, compact discs, digital versatile discs (DVDs), floppy discs, and Blu-ray discs, where the discs are often magnetic. The data is reproduced in a manner, and the disc optically reproduces the data by laser. Thus, in some aspects, computer readable media can include non-transitory computer readable media (eg, tangible media).

The methods disclosed herein comprise one or more steps or actions for achieving the methods described. These method steps and/or actions may be interchanged without departing from the scope of the claims. In other words, the order and/or use of specific steps and/or actions may be modified without departing from the scope of the claims.

Thus, certain aspects may include computer readable media for performing the operations provided herein. For example, such computer readable media can include computer readable media having instructions stored thereon (and/or encoded) that can be executed by one or more processors to perform the operations described herein. For some aspects, computer readable media can include packaging materials.

Software or instructions can also be transferred on the transmission medium. For example, if the software is transmitted from a web site, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, The coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are then included in the definition of the transmission medium.

It will be understood that the claims are not limited to the precise configurations and components illustrated above. Various changes, modifications, and variations can be made in the arrangement, operation and details of the methods and apparatus described above without departing from the scope of the claims.

Although the foregoing is directed to the various aspects of the present invention, other and further aspects of the present invention can be devised without departing from the basic scope and the scope thereof is determined by the appended claims.

The previous description is provided to enable any person skilled in the art to practice the various aspects described herein. For these states Various modifications will be apparent to those of ordinary skill in the art to which the invention pertains, and the general principles defined herein may be applied to other aspects. Therefore, the claims are not intended to be limited to the aspects shown herein, but should be accorded to all categories that are consistent with the linguistic claims. The singular singular representation of the elements is not intended to be expressed unless otherwise stated. "There is one and only one," but "one or more." Unless specifically stated otherwise, the term "some/some" refers to one or more. All of the structural and functional equivalents of the present invention will be apparent to those of ordinary skill in the art to which the present invention pertains. Covered. Moreover, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recited in the scope of the application. No element of the claim shall be construed in accordance with Article 19, item 4 of the Implementing Regulations of the Patent Law, unless the element is explicitly stated using the phrase "apparatus for" or in the case of a method request. This element is described using the phrase "steps for".

Claims (84)

A wireless communication method for a wireless device, the wireless device being a station (STA) or an access point (AP), the method comprising the steps of: determining a resource element extending across a bandwidth of a channel during a transmission period ( a first subset of RUs of the set of RUs, the bandwidth comprising a plurality of tones, the plurality of tones comprising a plurality of direct current (DC) tones, a first set of guard tones, and a second set of guard tones The plurality of DC tones are located at a central portion of the bandwidth, the first set of protection tones is located at an upper outer edge portion of the bandwidth, and the second set of protection tones is located at a lower outer edge portion of the bandwidth The first RU subset includes less than the RU of the RU set, and the remaining RUs in the RU set except the first RU subset are standard blocks, and each RU of the RU set includes at least 26 tones And performing communication of at least one of data or control information in the first RU subset, wherein the first RU subset includes x tones, and the x tones comprise a first group of x/2 a tone and a second set of x/2 tones, the first group of x/2 tones having a frequency greater than the DC tones Less than the first set of protection tones, the x/2 tones of the second group have a frequency less than the DC tones and greater than the second set of protection tones, wherein: the first subset of RUs is a center Block, the x/2 tones of the first group are adjacent to the DC tones in frequency and the x/2 tones of the second group are adjacent to the DC tones in frequency, or the first The RU subset is an edge block, and the first group of x/2 tones are at a frequency Adjacent to the first set of guard tones and the x/2 tones of the second group are adjacent to the second set of guard tones in frequency. The method of claim 1, wherein the wireless device is an AP, the method further comprising the steps of: dividing the plurality of tones in the transmission period by the protection tone and the tone allocation other than the DC tones Giving the RU set; and allocating a plurality of subsets of the RU set for communicating with a plurality of STAs, wherein the first RU subset is for communicating with a first STA and is based on the allocation of the plurality of subsets Determining, and wherein the communication of the at least one of the data or control information in the first RU subset is performed with the first STA. The method of claim 2, further comprising transmitting a frame to the plurality of STAs, wherein the frame includes information indicating an allocation of the plurality of subsets. The method of claim 2, further comprising the step of: determining, based on the allocation of the plurality of subsets, a second subset of RUs in the set of RUs for communicating with a second STA of the plurality of STAs, the The second RU subset includes less than the RU of the RU set; and communicates with at least one of the data or control information with the second STA in the second RU subset. The method of claim 4, wherein the communication with the first STA and the The communication performed by the second STA is concurrent. The method of claim 1, wherein the wireless device is a STA, the method further comprising receiving a frame, the frame comprising an indication of the allocation of the first subset of RUs in the set of RUs for communicating with the wireless device Information, wherein the first RU subset is determined based on the allocation. The method of claim 1, wherein the RU in the set of RUs has a size of at least one of 26, 242, or 484 tones. The method of claim 1, wherein for each RU comprising 26 tones in the set of RUs, the 26 tones comprise 24 data tones and 2 pilot tones. The method of claim 1, wherein for each RU comprising 242 tones in the set of RUs, the 242 tones comprise 234 data tones and 8 pilot tones. The method of claim 1, wherein for each RU comprising 484 tones in the set of RUs, the 484 tones comprise 468 data tones and 16 pilot tones. The method of claim 1, wherein the bandwidth is 20 MHz, 40 MHz, or 80 MHz. The method of claim 1, wherein the bandwidth is 20 MHz, wherein the RU set comprises 9 RUs, wherein each RU of the set of RUs comprises 26 tones, and wherein the channel comprises a plurality of direct current (DC) tones An RU in the set of RUs includes a first portion and a second portion, and wherein the first portion is higher in frequency than the plurality of DC tones, and the second portion is lower in frequency than the plurality of DCs Tune. The method of claim 1, wherein the bandwidth is 40 MHz, wherein the set of RUs comprises 16, 17, 18, or 19 RUs, and wherein each RU of the set of RUs comprises 26 tones. The method of claim 13, wherein the set of RUs comprises 18 RUs. The method of claim 13, wherein the channel comprises 5 or more direct current (DC) tones. The method of claim 1, wherein the bandwidth is 40 MHz, wherein the set of RUs comprises 2 RUs, and wherein each RU of the set of RUs comprises 242 tones. The method of claim 16, wherein the channel comprises 5 or more direct current (DC) tones. The method of claim 1, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 32 or more RUs, and wherein each RU of the set of RUs comprises 26 tones. The method of claim 18, wherein the set of RUs comprises 37 RUs. The method of claim 1, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 4 RUs, and wherein each RU of the set of RUs comprises 242 tones. The method of claim 1, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 2 RUs, and wherein each RU of the set of RUs comprises 484 tones. A device for wireless communication, the device being a station (STA) or an access point (AP), the device comprising: a memory; and at least one processor coupled to the memory and configured to perform The following steps: determining a first RU subset of a resource element (RU) set extending across a bandwidth of a channel during a transmission period, the bandwidth including a plurality of tones, the plurality of tones including a plurality of DCs a (DC) tone, a first set of guard tones, and a second set of guard tones, the plurality of DC tones being located in a central portion of the bandwidth, the first set of guard tones being located in the first of the bandwidths Upper outer edge part, the The second guard tone set is located at a lower outer edge portion of the bandwidth, the first RU subset includes less than the RU of the RU set, and the remaining RUs in the RU set except the first RU subset are standard Block, each RU of the set of RUs comprising at least 26 tones; and communication of at least one of data or control information in the first subset of RUs, wherein the first subset of RUs comprises x tones And the x tones include a first group of x/2 tones and a second group of x/2 tones, and the first group of x/2 tones have a frequency greater than the DC frequencies. Adjusting and smaller than the first set of protection tones, the x/2 tones of the second group have a frequency less than the DC tones and greater than the second set of protection tones, wherein: the first subset of RUs is a central block, the x/2 tones of the first group are adjacent to the DC tones in frequency and the x/2 tones of the second group are adjacent to the DC tones in frequency, or The first RU subset is an edge block, the x/2 tones of the first group are adjacent to the first set of guard tones in frequency and the x/2 tones of the second group are adjacent in frequency to The second protection Tune collection. The apparatus of claim 22, wherein the apparatus is an AP, and wherein the at least one processor is further configured to perform the step of dividing the plurality of tones of the transmission period by the protection tones and the DC frequencies a tone other than the tone is allocated to the set of RUs; and a plurality of subsets of the set of RUs are allocated for communicating with a plurality of STAs, The first RU subset is used for communication with a first STA and is determined based on the allocation of the plurality of subsets, and wherein the at least one of data or control information is performed in the first RU subset The communication is made with the first STA. The apparatus of claim 23, wherein the at least one processor is further configured to transmit a frame to the plurality of STAs, wherein the frame includes information indicative of the allocation of the plurality of subsets. The apparatus of claim 23, wherein the at least one processor is further configured to: determine a second in the set of RUs for communicating with a second STA of the plurality of STAs based on the allocation of the plurality of subsets a RU subset, the second RU subset including less than the RU of the RU set; and communication with at least one of data or control information in the second RU subset and the second STA. The device of claim 25, wherein the communication with the first STA and the communication with the second STA are concurrent. The device of claim 22, wherein the device is a STA, wherein the at least one processor is further configured to receive a frame, the frame comprising the first RU in the set of RUs for communicating with the device The information of the set allocation, and wherein the first subset of RUs is determined based on the allocation. The apparatus of claim 22, wherein the RUs in the set of RUs have a size of at least one of 26, 242, or 484 tones. The apparatus of claim 22, wherein for each RU comprising 26 tones in the set of RUs, the 26 tones comprise 24 data tones and 2 pilot tones. The apparatus of claim 22, wherein for each RU comprising 242 tones in the set of RUs, the 242 tones comprise 234 data tones and 8 pilot tones. The apparatus of claim 22, wherein for each RU comprising 484 tones in the set of RUs, the 484 tones comprise 468 data tones and 16 pilot tones. The device of claim 22, wherein the bandwidth is 20 MHz, 40 MHz, or 80 MHz. The apparatus of claim 22, wherein the bandwidth is 20 MHz, wherein the set of RUs comprises 9 RUs, wherein each RU of the set of RUs comprises 26 tones, and wherein the channel comprises a plurality of direct current (DC) tones Wherein an RU in the set of RUs includes a first portion and a second portion, and wherein the first portion is higher in frequency than the plurality of DC tones and the second portion is lower in frequency The number of DC tones. The apparatus of claim 22, wherein the bandwidth is 40 MHz, wherein the set of RUs comprises 16, 17, 18, or 19 RUs, and wherein each of the RUs of the set of RUs comprises 26 tones. The device of claim 34, wherein the set of RUs comprises 18 RUs. The device of claim 34, wherein the channel comprises 5 or more direct current (DC) tones. The apparatus of claim 22, wherein the bandwidth is 40 MHz, wherein the set of RUs comprises 2 RUs, and wherein each RU of the set of RUs comprises 242 tones. The device of claim 37, wherein the channel comprises 5 or more direct current (DC) tones. The apparatus of claim 22, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 32 or more RUs, and wherein each of the RUs of the set of RUs comprises 26 tones. The device of claim 39, wherein the set of RUs comprises 37 RUs. The apparatus of claim 22, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 4 RUs, and wherein each RU of the set of RUs comprises 242 tones. The apparatus of claim 22, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 2 RUs, and wherein each RU of the set of RUs comprises 484 tones. A device for wireless communication, the device being a station (STA) or an access point (AP), the device comprising: a resource element (RU for determining a bandwidth extension across a channel in a transmission period) a device for assembling a first subset of RUs, the bandwidth comprising a plurality of tones, the plurality of tones comprising a plurality of direct current (DC) tones, a first set of protection tones, and a second tonal tone Collecting, the plurality of dc tones are located at a central portion of the bandwidth, the first set of guard tones is located at an upper outer edge portion of the bandwidth, and the second set of guard tones is located at a lower outer edge of the bandwidth In part, the first RU subset includes less than the RU of the RU set, and the remaining RUs in the RU set except the first RU subset are standard blocks, and each RU of the RU set includes at least 26 frequencies. And means for performing communication of at least one of data or control information in the first RU subset, wherein the first RU subset includes x tones, and the x tones include a first a set of x/2 tones and a second set of x/2 tones, the first group of x/2 tones having a frequency greater than the DCs Modulation frequency and less than the first protective mobilization The x/2 tones of the second group have a frequency less than the DC tone and greater than the second protection tone set, wherein: the first RU subset is a center block, and the first group The x/2 tones are adjacent to the DC tones in frequency and the x/2 tones of the second group are adjacent to the DC tones in frequency, or the first RU subset is an edge block The first set of x/2 tones are adjacent in frequency to the first set of guard tones and the second set of x/2 tones are adjacent in frequency to the second set of guard tones. The device of claim 43, wherein the device is an AP, the device further comprising: assigning, to the plurality of tones in the transmission period, a tone other than the protection tones and the DC tones Means for the set of RUs; and means for allocating a plurality of subsets of the set of RUs for communicating with a plurality of STAs, wherein the first subset of RUs is for communicating with a first STA and is based on the plurality The distribution of the subset is determined, and wherein the communication of the at least one of the data or control information in the first RU subset is performed with the first STA. The apparatus of claim 44, further comprising means for transmitting a frame to the plurality of STAs, wherein the frame includes information indicative of the allocation of the plurality of subsets. The apparatus of claim 44, further comprising: means for determining a second subset of RUs in the set of RUs for communicating with a second one of the plurality of STAs based on the allocation of the plurality of subsets, The second RU subset includes less than the RU of the set of RUs; and means for communicating with at least one of the data or control information in the second RU subset and the second STA. The device of claim 46, wherein the communication with the first STA and the communication with the second STA are concurrent. The device of claim 43, wherein the device is a STA, the device further comprising means for receiving a frame, the frame comprising a first subset of the RU in the set of RUs for communicating with the device The assigned information, wherein the first subset of RUs is determined based on the allocation. The apparatus of claim 43, wherein the RUs in the set of RUs have a size of at least one of 26, 242, or 484 tones. The apparatus of claim 43, wherein for each RU comprising 26 tones in the set of RUs, the 26 tones comprise 24 data tones and 2 pilot tones. The apparatus of claim 43, wherein for each RU comprising 242 tones in the set of RUs, the 242 tones comprise 234 data tones and 8 pilot tones. The apparatus of claim 43, wherein for each RU comprising 484 tones in the set of RUs, the 484 tones comprise 468 data tones and 16 pilot tones. The apparatus of claim 43, wherein the bandwidth is 20 MHz, 40 MHz, or 80 MHz. The apparatus of claim 43, wherein the bandwidth is 20 MHz, wherein the set of RUs comprises 9 RUs, wherein each RU of the set of RUs comprises 26 tones, and wherein the channel comprises a plurality of direct current (DC) tones An RU in the set of RUs includes a first portion and a second portion, and wherein the first portion is higher in frequency than the plurality of DC tones, and the second portion is lower in frequency than the plurality of DCs Tune. The apparatus of claim 43, wherein the bandwidth is 40 MHz, wherein the set of RUs comprises 16, 17, 18, or 19 RUs, and wherein each of the RUs of the set of RUs comprises 26 tones. The device of claim 55, wherein the set of RUs comprises 18 RUs. The device of claim 55, wherein the channel comprises 5 or more direct current (DC) tones. The apparatus of claim 43, wherein the bandwidth is 40 MHz, wherein the set of RUs comprises 2 RUs, and wherein each RU of the set of RUs comprises 242 tones. The device of claim 58, wherein the channel comprises 5 or more direct current (DC) tones. The apparatus of claim 43, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 32 or more RUs, and wherein each of the RUs of the set of RUs comprises 26 tones. The device of claim 60, wherein the set of RUs comprises 37 RUs. The apparatus of claim 43, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 4 RUs, and wherein each RU of the set of RUs comprises 242 tones. The apparatus of claim 43, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 2 RUs, and wherein each RU of the set of RUs comprises 484 tones. A non-transitory computer readable medium storing computer executable code for wireless communication at a wireless device, the wireless device being a station (STA) Or an access point (AP), the computer readable medium comprising code for: determining a first RU of a resource element (RU) set extending across a bandwidth of a channel during a transmission period The set, the bandwidth includes a plurality of tones, the plurality of tones including a plurality of direct current (DC) tones, a first set of protection tones, and a second set of protection tones, wherein the plurality of tones are located a central portion of the bandwidth, the first set of guard tones is located at an upper outer edge portion of the bandwidth, and the second set of guard tones is located at a lower outer edge portion of the bandwidth, the first subset of RUs including less For the RUs of the RU set, the remaining RUs in the RU set except the first RU subset are standard blocks, each RU of the RU set includes at least 26 tones; and in the first RU subset Performing communication of at least one of data or control information, wherein the first RU subset includes x tones, and the x tones include a first group of x/2 tones and a second group X/2 tones, the x/2 tones of the first group have a frequency greater than the DC tones and less than the first set of protection tones, The second set of x/2 tones has a frequency less than the DC tone and greater than the second protection tone set, wherein: the first RU subset is a center block, and the first group of x/2 One frequency tone is adjacent to the DC tone in frequency and the x/2 tones of the second group are adjacent to the DC tone in frequency, or the first RU subset is an edge block, the first a set of x/2 tones are adjacent in frequency to the first set of guard tones and the second set of x/2 tones are at a frequency Adjacent to the second set of protection tones. The non-transitory computer readable medium of claim 64, wherein the wireless device is an AP, the computer readable medium further comprising code for: dividing the plurality of tones in the transmission period And a tone adjustment and a tone other than the DC tone are allocated to the set of RUs; and a plurality of subsets of the set of RUs are allocated for communicating with a plurality of STAs, wherein the first subset of RUs is used for The communication of the first STA is determined based on the allocation of the plurality of subsets, and wherein the communication of the at least one of the data or control information in the first RU subset is performed with the first STA . The non-transitory computer readable medium of claim 65, further comprising code for transmitting a frame to the plurality of STAs, wherein the frame includes information indicative of the allocation of the plurality of subsets. The non-transitory computer readable medium of claim 65, further comprising code for determining, based on the allocation of the plurality of subsets, a second STA for use in the RU set with the plurality of STAs a second RU subset of communications, the second RU subset comprising less than the RU of the set of RUs; and communication of at least one of data or control information with the second STA in the second RU subset. The non-transitory computer readable medium of claim 67, wherein the communication with the first STA and the communication with the second STA are concurrent. The non-transitory computer readable medium of claim 64, wherein the wireless device is a STA, the non-transitory computer readable medium further comprising code for receiving a frame, the frame comprising the indication of the set of RUs Information for allocation of the first subset of RUs in communication with the wireless device, wherein the first subset of RUs is determined based on the assignment. The non-transitory computer readable medium of claim 64, wherein the RUs in the set of RUs have a size of at least one of 26, 242, or 484 tones. The non-transitory computer readable medium of claim 64, wherein for each RU comprising 26 tones in the set of RUs, the 26 tones include 24 data tones and 2 pilot tones. The non-transitory computer readable medium of claim 64, wherein for each RU comprising 242 tones in the set of RUs, the 242 tones include 234 data tones and 8 pilot tones. The non-transitory computer readable medium of claim 64, wherein for each RU comprising 484 tones in the set of RUs, the 484 tones include 468 data tones and 16 pilot tones. The non-transitory computer readable medium of claim 64, wherein the bandwidth is 20 MHz, 40 MHz, or 80 MHz. The non-transitory computer readable medium of claim 64, wherein the bandwidth is 20 MHz, wherein the RU set comprises 9 RUs, wherein each RU of the set of RUs comprises 26 tones, and wherein the channel includes a number a direct current (DC) tone, wherein one RU of the set of RUs includes a first portion and a second portion, and wherein the first portion is higher in frequency than the plurality of DC tones, and the second portion is in frequency It is lower than the number of DC tones. The non-transitory computer readable medium of claim 64, wherein the bandwidth is 40 MHz, wherein the set of RUs comprises 16, 17, 18, or 19 RUs, and wherein each RU of the set of RUs includes 26 tones . The non-transitory computer readable medium of claim 76, wherein the set of RUs comprises 18 RUs. The non-transitory computer readable medium of claim 76, wherein the channel includes 5 or more direct current (DC) tones. The non-transitory computer readable medium of claim 64, wherein the bandwidth is 40 MHz, wherein the RU set includes 2 RUs, and wherein each RU of the set of RUs includes 242 tones. The non-transitory computer readable medium of claim 79, wherein the channel comprises 5 or more direct current (DC) tones. The non-transitory computer readable medium of claim 64, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 32 or more RUs, and wherein each RU of the set of RUs comprises 26 tones. The non-transitory computer readable medium of claim 81, wherein the set of RUs comprises 37 RUs. The non-transitory computer readable medium of claim 64, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 4 RUs, and wherein each RU of the set of RUs comprises 242 tones. The non-transitory computer readable medium of claim 64, wherein the bandwidth is 80 MHz, wherein the set of RUs comprises 2 RUs, and wherein each RU of the set of RUs comprises 484 tones.