CN105917730B - Access point auxiliary space is used again - Google Patents

Access point auxiliary space is used again Download PDF

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Publication number
CN105917730B
CN105917730B CN201480074068.2A CN201480074068A CN105917730B CN 105917730 B CN105917730 B CN 105917730B CN 201480074068 A CN201480074068 A CN 201480074068A CN 105917730 B CN105917730 B CN 105917730B
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China
Prior art keywords
ap
wireless device
information
go
interference threshold
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CN201480074068.2A
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Chinese (zh)
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CN105917730A (en
Inventor
杨荣震
P-K.黄
尹虎君
R.J.斯塔西
Y.马
P.孟
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英特尔Ip公司
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Priority to US201461944194P priority Critical
Priority to US61/944194 priority
Priority to US61/986250 priority
Priority to US61/986256 priority
Priority to US201461986250P priority
Priority to US201461986256P priority
Priority to US201461990414P priority
Priority to US61/990414 priority
Priority to US62/024813 priority
Priority to US62/024801 priority
Priority to US201462024801P priority
Priority to US201462024813P priority
Priority to US62/026277 priority
Priority to US201462026277P priority
Application filed by 英特尔Ip公司 filed Critical 英特尔Ip公司
Priority to PCT/CN2014/086532 priority patent/WO2015127777A1/en
Publication of CN105917730A publication Critical patent/CN105917730A/en
Application granted granted Critical
Publication of CN105917730B publication Critical patent/CN105917730B/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Abstract

A kind of wireless device serving as AP or GO collected from the station communicated with AP/GO include transmission opportunity (TxOP) state and interference threshold information.When the information of collection changes from the information previously collected, AP/GO is in broadcast frame (such as beacon frame) to the information of the station broadcast collection with wireless device.Beacon frame may include the interference threshold of the every side of link.Their transimission power is stood and then can adjust to be maintained in their association interference threshold.

Description

Access point auxiliary space is used again

Prioity claim

This application requires the equity to the priority of following patent application:

On 2 25th, the 2014 U.S. patent application serial number No.61/944,194 submitted;

The U.S. patent application serial number No.61/986,256 that on April 30th, 2014 submits;

The U.S. patent application serial number No.61/986,250 that on April 30th, 2014 submits;

The U.S. patent application serial number No.62/024,813 that on July 15th, 2014 submits;

The U.S. patent application serial number No.61/990,414 that on May 8th, 2014 submits;

The U.S. patent application serial number No.62/024,801 that on July 15th, 2014 submits;And

The U.S. patent application serial number No.62/026,277 that on July 18th, 2014 submits;Each patent application passes through Reference is incorporated herein.

Technical field

Embodiment is related with wireless network.Some embodiments be related to WLAN (WLAN), Wi-Fi network and according to One of 802.11 standard of IEEE (such as IEEE 802.11ac standard or IEEE 802.11ax SIG (referred to as DensiFi)) behaviour The network of work.Some embodiments are related to high efficiency wirelessly or high efficiency WLAN (HEW) is communicated.Some embodiments are related to Wi-Fi letter It uses again in road space.

Background technique

Institute of Electrical and Electronics Engineers (IEEE) 802.11 is one group for realizing WLAN (WLAN) communication Standard.These standards provide approval and license as the basis of the Wireless Communication Equipment of Wi-Fi equipment.

Wi-Fi network (such as smart phone, is calculated usually using access point (AP) and any mobile Wi-Fi enabled device Machine, tablet computer) it carries out wireless communication.AP may be connected to cable network, provides and connects to the AP of the network of such as internet Enter.Wi-Fi enabled device then can be by accessing internet with the communication of AP over the wireless channel.

Quantity due to attempting the mobile subscriber of access internet is continuously increased, so the quality of Wi-Fi enabled device is not It is disconnected to increase.AP and wireless channel can be collapsed under pressure due to too many Wi-Fi enabled device.

It accordingly, there are and the increase efficiency of Wi-Fi channel use aspect is generally required.

Detailed description of the invention

Fig. 1 illustrates the diagram of Wi-Fi network according to various embodiments.

Fig. 2 illustrates the diagram of Wi-FiAP/ group owner signaling and shared procedure according to various embodiments.

Fig. 3 illustrates the flow chart of the method for AP auxiliary space again according to various embodiments.

Fig. 4 illustrates the table for showing beacon broadcast information format according to various embodiments.

Fig. 5 illustrates the signaling diagram during transmission opportunity (TxOP) is shared according to various embodiments.

Fig. 6 illustrate according to various embodiments for a candidate decisioing making from pair diagram.

Fig. 7 is the block diagram of wireless communication device.

Specific embodiment

It is described below and effectively illustrates specific embodiment with attached drawing so that those skilled in the art can implement them.Its Its embodiment is in combination with structure, logic, electrical, process and other changes.The part of some embodiments and feature may include In those other embodiments, or substitute them.The embodiment illustrated in detail in the claims covers all of those claims Available equivalents scheme.

Embodiment is related with wireless communication.Some embodiments are related to high efficiency wireless communication, gas bag Wi-Fi/ containing high efficiency WLAN and high efficiency wireless (HEW) communication.Some embodiments are related to according to one of 802.11 standard of IEEE (comprising high efficiency WLAN study group (HEW SG) is IEEE 802.11ax task groups now) wireless communication.

According to some IEEE 802.11ax (high efficiency Wi-Fi (HEW)) embodiment, access point can be used as main website operation, Competition wireless medium (such as during competition phase) be may be disposed to receive the exclusive control of medium for HEW control period (i.e. TxOP) System.Interphase when the TxOP phase is, stands during it and accesses channel uncontestedly, and station can send frame as much as possible during it. Main website can start the transmission main synchronous transfer of HEW in HEW control period.During HEW control period, the station HEW can be according to based on non-competing The multiple access technology and master station communication striven.Unlike conventional Wi-Fi is communicated, (wherein device is logical according to the communication technology competition-based for this Letter, rather than multiple access technology).During HEW control period, one or more HEW frame can be used to communicate with the station HEW for main website.In HEW During control period, conventional stations inhibit communication.In some embodiments, main synchronous transfer is referred to alternatively as HEW control and scheduled transmission.

In some embodiments, the multiple access technology used during HEW control period can be the orthogonal frequency division multiple access of scheduling (OFDMA) technology, although this is not required.In some embodiments, multiple access technology can be time division multiple acess (TDMA) technology or Frequency division multiple access (FDMA) technology.In some embodiments, multiple access technology can be space division multiple access (SDMA) technology.

Main website can also be communicated according to traditional 802.11 communication technology of IEEE with conventional stations.In some embodiments, main website is also It can be configured to communicate outside HEW control period with the station HEW according to traditional 802.11 communication technology of IEEE, although this is not required.

In some embodiments, the link of HEW frame can be configured to same band, and bandwidth can be 80+ 80MHz (160MHz) discontinuous one of bandwidth or 20MHz, 40MHz or 80MHz continuous bandwidth.In some embodiments, it can be used 320MHz continuous bandwidth.In some embodiments, the bandwidth of 5MHz and/or 10MHz also can be used.In these embodiments, HEW Each link of frame is configurable to transmit or receive multiple spatial flows.

The mobile subscriber of increasing number is try to access internet over the wireless channel by AP.Similarly, exist Wireless channel in WiFi direct communication between a group owner (GO) and station is also just becoming more and more crowded.To wirelessly Channel can be collapsed under pressure due to too many Wi-Fi enabled device.The embodiment then described is disappeared using the broadcast from AP and/or GO Breath (such as beacon message) is used again for space and power control.

Wireless device is later referred to as station, AP, GO and/or equipment.Wireless device, which can be covered, to be had in wireless channel At least one radio of upper communication and any communication device of at least one antenna.

Fig. 1 illustrates the diagram of Wi-Fi network according to various embodiments.Network may include multiple stations, all for example non-AP The STAx 101-107 and AP 100 to stand.In embodiment, AP 100 can be coupled to internet by land line or wireless channel.

Two pairs of stations 101,102 and 105,106 can be via WiFi Direct agreement (that is, device leads to device D2D) Letter.In such embodiments, each pair of 101,102 and 105, a station in 106 can be GO, to control to each respective sets In device between channel access.These stations are referred to alternatively as the D2D_STA at the station GOGO(P) and D2D_STAGO(M) and non-GO The D2D_STA to standnon-GO(Q) and D2D_STAnon-GO(N)。

Although Fig. 1 is shown using the station communicated WiFi Direct to 101,102 and 105,106, this field Technical staff will appreciate that WiFi Direct can be used to communicate for multiple stand.For example, WiFi Direct may include a station pair One station or one station to multiple stations communication, wherein station first is that GO.The station GO can have and the AP phase in WiFi Direct group Same role.

Show that another station 107 is just communicated with AP 100.This station is not regarded in the communication range 120 of AP For a part transmitted/received pair, as described later.

The AP of Fig. 1 can all station 101-107 into AP beacon overlay area 120 transmit beacon frame.Such as it is in this field Known, beacon frame is management frame in IEEE 802.11.Beacon frame can contain the information about network, and can be by AP weeks It transmits to phase property to notify that there are WLAN (WLAN).

According to IEEE 802.11, beacon may include media access control (MAC) header, frame and frame check sequence (FCS).Added field may include timestamp, beacon interval and ability information.According to the embodiments described below, broadcast frame (example Such as beacon frame) it broadcasts and uses the additional information with power control again for space.Space is again with the effect for being a kind of increase WiFi network The technology of rate.

Fig. 2 illustrates the diagram of Wi-Fi AP/GO signaling and shared procedure according to various embodiments.Fig. 2 shows three A transmit/receive (TX/RX) is to 100,104 (103);105,106;And 101,102.For example, the first TX/RX is to can be AP 100 (TX1) and the station 104 (RX1) communicated with AP 100.First TX/RX to can also be GO station and in its respective sets Another station.First TX/RX can be considered as main pair to 230, and another TX/RX can be considered as to 231,232 from right.

AP 100 or GO (such as TX1) broadcast beacon frame 200.With reference to Fig. 1, beacon can be by being respectively provided with relevant interference threshold value The master of T (x) and T (y) is to candidate STAAP(x) 104 and STAAP(y) it 103 receives.If GO just in broadcast beacon frame 200, is led It can be identical as in AP broadcast embodiment to candidate and interference threshold.First pair (such as main to) can be considered as being try to space Pair again.

It is main to 230 then can during network allocation vector (NAV) time (such as TxOP is shared) the AP/GO of this pair with Transmission frame 210,220 between standing.Such as be known in the art, NAV can indicate dispatching station be intended to keep medium it is busy when Between.

Space used time again is being realized using transmitting power control (TPC), AP/GO information (such as the number transmitted by AP/GO According to) it can be master to candidate information and their corresponding interference threshold.There may be multiple realities for broadcasting AP/GO information Apply example.For example, in complete solution analysis embodiment, AP/GO information may include main to the candidate information (STA at the station communicated with AP/GO Location or ID) and their associated interference threshold.In group parsing embodiment, AP/GO information may include for such as modulating With the master of encoding scheme (MCS) grade and some Feature Groupings of the associated interference threshold of group to candidate.Another embodiment can be only Broadcast an interference threshold.Such embodiment is suitably adapted for D2D communication.Then transmitter can adjust its transimission power to be maintained at In associated interference threshold.Only for main pair, without for broadcasting interference threshold from right.From the interference to main pair can be examined Threshold value, the transmission to ensure them will not be to main more interference to introducing than broadcast interference threshold permission.

Fig. 3 illustrates the flow chart of the embodiment of the method for AP/GO auxiliary space again.With other transmission to shared Each AP/GO of the transmission opportunity (TxOP) of own, the AP/GO can broadcast its shared information, such as be shown in FIG. 3 and then Description.Shared information can be broadcast periodically.Period can second or millisecond be unit measurement, such as by system configuration or realization institute Determining.

In frame 301, AP/GO can collect enough station information from the other stations communicated with AP/GO and make to realize in frame 303 Determine out.It is collected depending on embodiment by the algorithms of different/scheme applied during the TxOP communal space uses the stage again Station information can be different.

For example, may include whether making by the AP/GO station information that its station connected is collected from each in one embodiment It can be shared as the owner of TxOP by, which standing, transmits (such as transmission opportunity state).It is so enabled if stood, letter of standing Breath also may include the value of the interference threshold allowed.

In frame 303, AP/GO can be used the information collected make about compared with the information of Last call, share state, The judgement whether interference threshold and/or power control information have changed.For example, two stations when main pair are moved together closer to ground When dynamic, their interference threshold can change (such as increase) from previous interference threshold.If answer be it is no, method returns to frame 301 to continue another circulation that information is collected.If answer be it is yes, method returns to frame 305 broadcasted within a beacon frame in frame 301 information collected.

In frame 305, the information of collection can be broadcast to neighbor station (such as device of IEEE 802.11ax support) by AP/GO, It also supports that TxOP is shared, as described later.The information of collection can be broadcast to network within a beacon frame.To with AP/ Then the station of GO (such as wireless device) communication can communicate during the NAV time.

With in embodiment described above, the information of collection can be broadcasted in many ways by beacon frame.Complete It parses in embodiment, can broadcast main to candidate information (address STA or the ID that are connected to this AP) and relevant interference threshold value.In group It parses in embodiment, it is main that candidate can organize into groups such as MCS grades of some characteristics, and the relevant interference threshold of group can be broadcasted Value.In other embodiments, can only broadcast an interference threshold: this embodiment is suitably adapted for D2D connection.

It can be based on the transimission power to the main interference threshold adaptation stations to broadcast.For example, the full transimission power at station can lead to To the interference level of the worse situation of the channel from station.If that interference level leads to interference electricity more higher than broadcast threshold Flat, then the station can adjust its transimission power to reduce interference and to meet threshold value.

Fig. 4 illustrates the table for showing beacon broadcast information format according to various embodiments.Embodiment described is related to Previously discussed complete solution analyses embodiment.The information purpose contained in the table on fig. 4 exclusively for the purposes of illustration, because of other realities It applies example and contains additional information or less information in different-format (such as effective range, bit length).Other embodiments can contain There is this type of information useful to the specific embodiment.

Fig. 4 shows the different types of information 401 that can be broadcasted within a beacon frame.This information may include total for TxOP The quantity (NumCandidates) for the candidate stations enjoyed, for TxOP share first stop candidate MAC Address (STA_1_MAC_ Address), the interference threshold (IT_AP_1) of the side AP/GO communicated when first stop shares its TxOP and when first stop is shared The interference threshold (IT_STA_1) of the station side communicated when its TxOP.

The table is shown, these elements can begin at first stop candidate, and is gone to until n-th (such as last) is stood time Choosing.This by the last leg candidate shared for TxOP MAC Address (STA_N_MAC_Address), when the last leg it is total The side AP/GO communicated when enjoying its TxOP interference threshold (IT_AP_N) and the station that communicates when the last leg shares its TxOP The table element explanation of the interference threshold (IT_STA_N) of side.In the above element, " N " is the value of NumCandidates, if If it is non-zero.

Another column 403 of table show the effective range of each element of beacon broadcast information.For example, NumCandidates can have the effective range of 0-255.There is no STA_1_MAC_Address's to apply (N/A) range, because Any legal MAC Address can be available for it.IT_AP_1 to IT_AP_N and IT_STA_1 can have to IT_STA_N element Have in -128dBm to the virtual value within the scope of 127dBm.

In embodiment, the information in the table of Fig. 4 can be comprised in the present beacon message from AP/GO as new Field.In another embodiment, the information in table, which can be broadcasted in new beacon frame from AP/GO, has more long duration (period)。

Fig. 5 illustrates the signaling diagram during TxOP is shared according to various embodiments.Signaling is shown in the first transmission The main signaling 501 between P0 of HEW resource-sharing between device (TX0) and the first receiver (RX0).Diagram further illustrates HEW resource-sharing with N number of transmitter (TX1-TXN) and N number of receiver (RX1-RXN) is to the signaling between P1-PN 508。

Master includes to signaling 501: from TX1 to RX1 transmit request send (RTS) frame 502 and after competing the phase 504 by RX1 responsively transmits clear to send (CTS) frame 503 to TX1.These frames 502,503 can be transmitted with full transimission power.It can be used The transmission for applying power control carrys out the subsequent transmission of transmission convergence Medium Access Control (MAC) Protocol Data Unit (A-MPDU) frame.It can be shared in TxOP Period transmits these frames 502,503,505.

As being known in the art, multiple frames by being combined in a larger frame by A-MPDU together, to the every of medium Single access provides multiple frames.In hardware level, the received A-MPDU frame of institute may be logically divided into independent grouping.It is marked according to IEEE802.11 Standard, A-MPDU dimensionally can be until 64K bytes.When capturing A-MPDU, it is other as looking like that it is passed into application layer Multiple non-polymeric groupings of grouping.

Show traditional NAV RTS and CTS time 530,531.These are the time, traditional during it (such as preceding IEEE 802.11ax, preceding HEW) transmitter and receiver be intended to keep medium busy.Thus can between conventional apparatus and HEW device It can not interfere with.During HEW opening and shares vector (OSV) 532 also occurs in this time.

HEW resource-sharing is from RTS/CTS the and A-MPDU signaling shown between TXN/RXN pairs to signaling 508.These frames Also transmitted during using transmitting power control.

It can be defined as the master of current TxOP owner to can be reserved by RTS/CTS frame.This is such as to standardize in current WiFi Defined in typical method.Main pair of two devices first is that AP or GO.

From current main couple of AP/GO receive shared broadcast message to examining the condition of space again, and Apply power control.Examine space again with and apply power control can as then refer to Fig. 6 diagram described in complete.

Fig. 6 illustrate according to various embodiments for a candidate decisioing making from pair diagram.This diagram is shown HEW master comprising TX 610 and RX 611 is to 601.For simplicity purposes, Fig. 6 is only shown comprising TX's 613 and RX614 One potential HEW is to 603.This figure illustrates that the propagation in WiFi device 610,611,613,614 between any two devices is damaged Consumption.

For example, the main propagation loss between of TX 610 and RX 611 can be byIt indicates.It is main to TX 610 and potential From can be by the propagation loss between RX 614It indicates.It is main to be damaged to TX 610 and potentially to the propagation between TX 613 Consumption can be byIt indicates.Potentially to TX 613 and potentially from can be by the propagation loss between RX 614It indicates. Potentially to TX 613 and it is main can be by the propagation loss between RX 611It indicates.It is main to RX 611 with potentially from right Propagation loss between RX 614 can be byIt indicates.Then making for these values is illustrated in determining the transimission power allowed With.

The first step of the transimission power maximum allowable as determination, maximum allowable transimission power are from candidate pair The side TX/RX, may be defined as:

Wherein:Indicate the maximum allowable transimission power (being stated with dBm) on the side TX from candidate couple;Table Show the maximum allowable transimission power (being stated with dBm) on the side RX from candidate couple;It indicates on main pair of the side TX most The interference threshold (being stated with dBm) allowed greatly;AndIndicate that the maximum allowable transimission power on main pair of the side RX (is used DBm statement).WithBoth interference threshold values are received from beacon broadcast information, such as previously with reference to the flow chart of Fig. 3 It is discussed.

The second step of the transimission power maximum allowable as determination, estimate Signal to Interference plus Noise Ratio (SINR) so as to Examine potential link efficiency.This can be reached by following equation:

Wherein:Indicate the reception SINR of the estimation to transmitter side;Indicate described from docking Receive the reception SINR of the estimation in device side;Indicate (to be mark with dB from the non-power stage from interference plus noise of transmitter Degree);AndIt indicates in the non-power stage from interference plus noise from transmitter (using dB as scale).

If the SINR of estimation meets the rate-valve value predetermined of link, potentially to reduction power can be passed through ForWithAnd attempt to use TxOP again.

The third step of the transimission power maximum allowable as determination, from candidate to can attempt to again with TxOP, by leading pair Possess to execute space and to use again.From candidate to can also examine before actual data transmission with postcondition: transmission is not in NAV rank Section (only excludes NAV setting from the CTS/RTS of master couple), and can meet CCA limitation (from main to exclusion power level signal).

Fig. 7 illustrates the block diagram of wireless communication device 700 (such as Wi-Fi device), in it can operating instruction set Or sequence is so that device executes any one methodology discussed herein.In an alternative embodiment, device is operated as self-contained unit, Or other devices can be connected (e.g., networked) to.In the deployment of networking, device can be made in server-client network environment For or server or client terminal device operation or it arrive in reciprocity end (or distribution) network environment and may act as pair at reciprocity end Equal devices.Device can be mobile communications device (such as cellular phone), AP, GO, computer, personal computer (PC), plate PC, a mixing flat board, personal digital assistant (PDA) are able to carry out (sequence or in other ways) and provide that the device to be carried out dynamic Any device of the instruction of work.Further, although only illustrating single device, term " device " should also be as being considered as comprising single Solely or what (or multiple set) of the collection of combined operating instruction is to execute the devices of any one or more methodology discussed herein Any set.Similarly, term " processor-based system " should be considered as comprising being controlled by processor (such as computer) Or operated by processor with run alone or in combination one of the instruction for executing any one or more methodology discussed herein or Any set of multiple devices.

Example wireless station 700 includes at least one processor 702 (such as central processing unit (CPU), graphics processing unit (GPU) or both, processor core, calculate node etc.), main memory 704 and static memory 706, they are via link 708 (such as bus) communicates with one another.Radio station 700 can further include display unit 710 and alphanumeric input device 712 (such as Keyboard, keypad).In one embodiment, display unit 710 and input unit 712 are incorporated into touch-screen display.Wirelessly Furthermore stand 700 may include that storage device 716 (such as actuator unit), signal generating apparatus 718 (such as loudspeaker), network connect Mouth device 720 and one or more sensors (not shown).These not all components all utilize in all devices.Example Such as, AP can not include display 710 or input unit 712.

Storage device 716 include computer-readable medium 722, have stored thereon by it is described herein any one or more The one or more of 724 (such as softwares) of data structure and instruction that methodology or function are implemented or utilized is gathered.Instruction 724 exists It can also completely or at least partially reside in main memory 704 during being executed by radio station 700, in static memory 706 and/or In processor 702, wherein main memory 704, static memory 706 and processor 702 also constitute machine-readable medium.Embodiment It can be realized at one in hardware, firmware and software or in combination.Embodiment can also be realized to be stored in computer-readable deposit Instruction on storage device can be read and be run by least one processor, to execute operation described herein.It is computer-readable Storage device may include any non-transitory mechanism for storing the information by device (such as computer) readable form.

Although computer-readable medium 722 is illustrated as single medium in the exemplary embodiment, " computer can for term Read medium " it may include the single medium for storing one or more instructions 724 or multiple media (for example, centralization or distributed number According to library and/or associated cache and server).Term " computer-readable medium " should also be as being considered as comprising that can deposit The instruction of any one or more methodology of storage, coding or carrying for being run by device and being made the device execution disclosure can Storage, coding carry any tangible medium that the data structure for utilizing or being associated is instructed by this class." computer can for term Read medium " should correspondingly it be considered as including but not limited to solid-state memory and light and magnetic media.Computer-readable media Particular example includes nonvolatile memory, as example including but not limited to semiconductor memory system (such as electrically programmable Read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM)) and flash memory device;Disk, such as Internal hard drive and removable disk;Magneto-optic disk;And CD-ROM and DVD-ROM disk.

Instruction 724 can be further via the net using any agreement (such as HTTP) in some well-known transportation protocols Network interface arrangement 720 is transmitted or is received on communication network 726 using transmission medium.The example of communication network includes local area network (LAN), wide area network (WAN), WLAN (WLAN), internet, mobile telephone network, ordinary old style telephone (POTS) net and Wireless data network (such as WiFi (IEEE 802.11), 3GPP, 4G LTE/LTE-A or WiMAX network).Term " transmission medium " It should be considered as any intangible medium comprising that can store, encode or carry the instruction executed by device, and include number Or other intangible mediums of analog communication signal or the such software of faciliated diffusion.Network Interface Unit may include for it is wireless One or more antennas of network communication.

Embodiment can be realized in hardware, one of firmware or software or combination.Embodiment can also be realized to be stored in Instruction in computer readable storage means can be read and be run by least one processor, to execute behaviour described herein Make.Computer readable storage means may include for storing by any non-temporary of the information of device (such as computer) readable form When property mechanism.For example, computer readable storage means may include read-only memory (ROM), random access memory (RAM), magnetic Disk storage media, optic storage medium, flash memory device and other storage devices and media.In some embodiments, system can Comprising one or more processors, and can be configured using the instruction being stored in computer readable storage means.

Additional annotations and example: [this will be padded after claims have gone through]

Example 1 is

In example 2, the theme of example 1 optionally may include

Example 1 is wireless device, comprising: processor and circuit are configured to collect from the station of the wireless device Information including transmission opportunity (TxOP) state and interference threshold, and when the information collected is different from the information previously collected When, the processor and circuit configuration are collected to broadcasting with the station of the wireless device in broadcast frame at control Information.

In example 2, the theme of example 1 optionally may include: wherein the processor and circuit are further configured to lead to Transmission beacon frame is crossed to control the broadcast of the collected information, the beacon frame include the candidate stations that TxOP shares number, The interference threshold of the station side of the media access control address of candidate stations, the interference threshold of the side AP or GO of link and the link Value.

In example 3, the theme of example 1-2 optionally may include: wherein the processor and circuit are further configured to By determine when shared state, interference threshold and/or power control information from it is previous share state, interference threshold and/ Or power control information changes to determine when that the collected information is different from the information previously collected.

In example 4, the theme of example 1-3 optionally may include: wherein the processor and circuit are further configured to By determine when interference threshold from previous interference threshold change determine when the collected information and it is described previously The information of collection is different.

In example 5, the theme of example 1-4 optionally may include: wherein the wireless device be using Access point in the WiFi network of IEEE802.11ax agreement.

In example 6, the theme of example 1-5 optionally may include: wherein the wireless device is using WiFi Direct Group owner in one group of wireless device of protocol communication.

In example 7, the theme of example 1-6 optionally may include: wherein the processor and circuit are further configured to It is broadcast periodically the information.

In example 8, the theme of example 1-7 optionally may include: wherein the wireless device is access point (AP) or group One of owner (GO), and the processor and circuit are further configured to collect from each station for being connected to the AP or GO The information.

In example 9, the theme of example 1-8 optionally may include: wherein the wireless device is the height with another station A part of main pair of (HEW) resource-sharing that efficiency is wireless.

In example 10, the theme of example 1-9 optionally may include: wherein be not the master to the nothing of a part The station of line apparatus communication is HEW resource-sharing from right.

In example 11, the theme of example 1-10 optionally may include: wherein the wireless device includes memory and extremely A few radio.

In example 12, the theme of example 1-11 optionally may include: wherein the broadcast frame further comprises comprising master To the AP/GO information of candidate information and their association interference threshold.

In example 13, the theme of example 1-12 optionally may include: wherein the broadcast frame further comprises AP/GO letter Breath, the information include for modulating with the master of encoding scheme (MCS) grade and the associated interference threshold marshalling of group to candidate.

In example 14, the theme of example 1-13 optionally may include: wherein the wireless device is GO, and described wide Broadcasting frame further only includes the interference threshold communicated for WiFi Direct.

Example 15 is wireless device, comprising: processor and circuit, be configured to from by Radio Link and access point (AP) or The radio station of group owner (GO) communication collects the information including transmission opportunity (TxOP) state and interference threshold, and when described When the information of collection and the information difference previously collected, to the institute communicated by the link with the AP or GO in broadcast frame It states radio station and broadcasts the collected information.

In example 16, the theme of example 15 optionally may include: wherein the processor and circuit are further configured to To the determining transmission side (TX) in the link and the transimission power allowed on the side (RX) is received from candidate by wireless device, Wherein the transimission power of the permission is:

Wherein:Indicate the transimission power in the permission from candidate pair of the side TX;It indicates described From the transimission power of the permission on candidate pair of the side RX;Indicate the interference threshold of the permission on main pair of the side TX;With AndIndicate the transimission power of the permission on the side RX of the master couple.

Example 17 is non-transitory computer-readable storage media, and store instruction is used in access point (AP) auxiliary or group The space owner (GO) executes the space by processing circuit operation in again and uses the operation with transmitting power control again, configures institute Processing circuit is stated to execute the operation operated below: collecting from the radio station communicated by Radio Link with AP or GO includes transmission The information of chance (TxOP) state and interference threshold;And when the collected information with previously collected information difference when, The collected information is broadcasted to the radio station communicated by the link with the AP or GO in broadcast frame.

In example 18, the theme of example 17 optionally may include: wherein the operation further passes through wireless device To the determining transmission side (TX) in the link and the transimission power allowed on the side (RX) is received from candidate, wherein the permission Transimission power is:

Wherein:Indicate the transimission power in the permission from candidate pair of the side TX;It indicates described From the transimission power of the permission on candidate pair of the side RX;Indicate the interference threshold of the permission on main pair of the side TX;With AndIndicate the transimission power of the permission on the side RX of the master couple.

In example 19, the theme of example 17-18 optionally may include: wherein the operation is further from the broadcast frame It receivesWithInterference threshold.

In example 20, the theme of example 17-19 optionally may include: wherein the operation further passes through following formula Determine the signal interference plus noise ratio (SINR) of estimation:

Wherein:Indicate the reception SINR of the estimation to the side TX;Indicate described to the side RX Estimation reception SINR;It indicates in the non-power stage from interference plus noise from transmitter;AndIt indicates described From the non-power stage from interference plus noise of transmitter.

Example 21 is for the method for access point (AP) auxiliary space again, which comprises from the AP or group Multiple radio stations of owner (GO) communication collect the information including transmission opportunity (TxOP) state and interference threshold;And wide It broadcasts in frame and broadcasts the collected information to the multiple radio station communicated with the AP or GO, wherein broadcast frame includes each The interference threshold that the association of radio station allows.

In example 22, the theme of example 21 optionally may include: wherein the multiple radio station includes the master of radio station It is right, wherein the master is to including the AP or GO.

In example 23, the theme of example 21-22 optionally may include: wherein the master is to being current transmission chance (TxOP) owner, the method further includes: the master hands over by request transmission/clear to send (RTS/CTS) frame It brings and reserves the TxOP, so that the master is transmitted between the station of the master couple and the AP or GO to during the TxOP Frame.

In example 24, the theme of example 21-23 optionally may include: wherein the multiple wireless device includes without traditional thread binding Set from right, the method further includes: it is described to receive the broadcast frame to from the AP or GO of the master couple;It examines The condition of space again;And apply power control in response to the interference threshold in the broadcast frame.

Abstract is provided to allow reader to understand fully essence and main points disclosed in technology.It is to be understood that it will not be used to limit The range or meaning made or interpreted the claims.Following claims are hereby incorporated into specific embodiment, wherein often A claim is independently as individual embodiment.

Claims (25)

1. a kind of wireless device, comprising: processor and circuit are configured to from collecting with the station of the wireless device include passing The information of defeated chance (TxOP) state and interference threshold, and when the information of collection with previously collected information difference when, it is described Processor and circuit configuration broadcast the collected information progress to the station of the wireless device in broadcast frame in pairs Control.
2. wireless device as described in claim 1, wherein the processor and circuit are further configured to by transmitting beacon Frame controls the broadcast of the collected information, and the beacon frame includes the matchmaker of the number for the candidate stations that TxOP shares, candidate stations The interference threshold of the station side of body accessing to control address, the interference threshold of the side AP of link or the side GO and the link.
3. wireless device as described in claim 1, wherein the processor and circuit are further configured to by determining when Shared state, interference threshold and/or power control information are from previous shared state, interference threshold and/or power control letter Breath changes to determine when that the collected information is different from the information previously collected.
4. wireless device as described in claim 1, wherein the processor and circuit are further configured to by determining when Interference threshold has changed to determine when the collected information and the information previously collected not from previous interference threshold Together.
5. wireless device as described in claim 1, wherein the wireless device is the WiFi using IEEE 802.11ax agreement Access point in network.
6. wireless device as described in claim 1, wherein the wireless device is one using WiFi Direct protocol communication Group owner in group wireless device.
7. wireless device as described in claim 1, wherein the processor and circuit are further configured to be broadcast periodically The information.
8. wireless device as described in claim 1, wherein the wireless device be access point (AP) or group owner (GO) it One, and the processor and circuit are further configured to collect the information from each station for being connected to the AP or GO.
9. wireless device as described in claim 1, wherein the wireless device is that have the high efficiency at another station wireless (HEW) A part that main pair of resource-sharing.
10. wireless device as claimed in claim 9, wherein with not being the wireless device of the master to a part Station is HEW resource-sharing from right.
11. wireless device as described in claim 1, wherein the wireless device includes memory and at least one radio.
12. wireless device as described in claim 1, wherein the broadcast frame further comprises AP/GO information, the AP/GO Information includes main to candidate information and their association interference threshold.
13. wireless device as described in claim 1, wherein the broadcast frame further comprises AP/GO information, the AP/GO Information includes for modulating with the master of encoding scheme (MCS) grade and the associated interference threshold marshalling of group to candidate.
14. wireless device as described in claim 1, wherein the wireless device is GO, and the broadcast frame is further only Including the interference threshold communicated for WiFi Direct.
15. a kind of wireless device, comprising: processor and circuit are configured to gather around from by Radio Link and access point (AP) or group The radio station of the person of having (GO) communication collects the information including transmission opportunity (TxOP) state and interference threshold, and when the letter collected When breath is with the information difference previously collected, to the radio station communicated by the link with the AP or GO in broadcast frame Broadcast the collected information.
16. wireless device as claimed in claim 15, wherein the processor and circuit are further configured to determine without traditional thread binding Set from candidate in the transmission of the link side (TX) and receiving the transimission power that allows on the side (RX), wherein the permission Transimission power is:
Wherein:Indicate the transimission power in the permission from candidate pair of the side TX,Indicate it is described from The transimission power of permission on candidate pair of the side RX,Indicate the interference threshold of the permission on main pair of the side TX,Indicate the master couple the side TX and the propagation loss between candidate pair of the side TX,Indicate the master couple The side RX and the propagation loss between candidate pair of the side TX,Indicate the side TX of the master couple and described from candidate Pair the side RX propagation loss,The side RX and the propagation between candidate pair of the side RX for indicating the master couple are damaged Consumption, andIndicate the transimission power of the permission on the side RX of the master couple.
17. one kind is used for the method for access point (AP) auxiliary space again, which comprises
Collecting from the multiple radio stations communicated with the AP or group owner (GO) includes transmission opportunity (TxOP) state and interference The information of threshold value;And
The information collected is broadcasted to the multiple radio station communicated with the AP or GO in broadcast frame, wherein broadcast frame includes The interference threshold that the association of each radio station allows.
18. method as claimed in claim 17, wherein the multiple radio station includes the master couple of radio station, wherein the master couple Include the AP or GO.
19. method as claimed in claim 18, wherein the master is to the owner for being current transmission chance (TxOP), the side Method further comprises: the master reserves the TxOP to by request transmission/clear to send (RTS/CTS) Frame switch, so that The master to during the TxOP between the station of the master couple and the AP or GO transmission frame.
20. method as claimed in claim 19, wherein the multiple wireless device includes wireless device from right, the method Further comprise:
It is described to receive the broadcast frame to from the AP or GO of the master couple;
Examine the condition of space again;And
Apply power control in response to the interference threshold in the broadcast frame.
21. one kind is used for the equipment of access point (AP) auxiliary space again, the equipment includes:
For from collecting with the AP or group owner (GO) multiple radio stations for communicate including transmission opportunity (TxOP) state and The component of the information of interference threshold;And
Component for the information collected in from broadcast frame to the multiple radio station broadcast communicated with the AP or GO, wherein Broadcast frame includes the interference threshold that the association of each radio station allows.
22. equipment as claimed in claim 21, wherein the multiple radio station includes the master couple of radio station, wherein the master couple Include the AP or GO.
23. equipment as claimed in claim 22, wherein the master is to the owner for being current transmission chance (TxOP), it is described to set It is standby to further comprise: the TxOP is reserved to by request transmission/clear to send (RTS/CTS) Frame switch for the master, So that the master to during the TxOP the master couple station the AP or GO between transmission frame component.
24. equipment as claimed in claim 23, wherein the multiple wireless device includes wireless device from right, the equipment Further comprise:
For described from the component for receiving the broadcast frame to the AP or GO from the master couple;
For examining the component of the condition of space again;And
For applying the component of power control in response to the interference threshold in the broadcast frame.
25. one kind has been stored with the computer-readable medium of instruction on it, described instruction causes processor to be held when executed Method of the row as described in any one of claim 17-20.
CN201480074068.2A 2014-02-25 2014-09-15 Access point auxiliary space is used again CN105917730B (en)

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US201461944194P true 2014-02-25 2014-02-25
US61/944194 2014-02-25
US201461986250P true 2014-04-30 2014-04-30
US201461986256P true 2014-04-30 2014-04-30
US61/986250 2014-04-30
US61/986256 2014-04-30
US201461990414P true 2014-05-08 2014-05-08
US61/990414 2014-05-08
US201462024801P true 2014-07-15 2014-07-15
US201462024813P true 2014-07-15 2014-07-15
US62/024801 2014-07-15
US62/024813 2014-07-15
US201462026277P true 2014-07-18 2014-07-18
US62/026277 2014-07-18
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