CN110063040A - More bit differential encodings for Empty packet (DNP) feedback report - Google Patents

Abstract

Wireless telecom equipment, method and system.The equipment includes the processing circuit of memory and coupled memory.The processing circuit is used for: from memory read data and being write data into, and uplink (UL) Empty packet (NDP) is further encoded at least two tone sets, at least two tone sets encode at least two bits together, in which: the first bit of at least two bits will encode in at least first collection of at least two tone sets；And it will be encoded in the subsequent collection of at least two tone sets after at least first collection in the subsequent bit of at least two bits after the first bit, so that then the value of bit is based on the pitch value for uncoded first bit.Processing circuit is further used for the transmission for causing UL NDP to access point (AP).

Description

More bit differential encodings for Empty packet (DNP) feedback report

The cross reference of related application

This application claims the equity for the U.S. Provisional Application No. 62/444,501 that on January 10th, 2017 submits, it is open with Way of reference is incorporated herein, as fully expounded herein.

Technical field

Embodiment is related to wireless network and wireless communication.Some embodiments are related to WLAN (WLAN) and Wi-Fi net Network, the WLAN (WLAN) and Wi-Fi network include according to 802.11 family of Institute of Electrical and Electric Engineers (IEEE) The network of standard operation.Some embodiments are related to IEEE 802.11ax.Some embodiments are related to for Empty packet (NDP) Method, computer-readable medium and the device of the differential encoding of more bits of feedback report.

Background technique

The effective of the resource of WLAN (WLAN) uses for providing bandwidth and acceptable sound to the user of WLAN It is important between seasonable.However, equipment attempts to share identical resource there are many in general, and some equipment may be by them The limitation of the communication protocol used or its hardware bandwidth.

Detailed description of the invention

The disclosure is shown in the figure of attached drawing by way of example, and not limitation, and wherein same reference numerals instruction is similar Element, and wherein:

Fig. 1 shows WLAN in accordance with some embodiments；

The Resource Allocation Frame stood between (STA) Fig. 2 shows efficient (HE) of the AP of Fig. 1 in accordance with some embodiments and Fig. 1 Exchange and uplink data communication.

Fig. 3 shows uplink (UL) Empty packet of two in three STA in frequency domain and time domain from Fig. 1 (NDP), the P row matrix for and according to one embodiment further showing UL NDP includes the distribution transmitted for resource request Resource block；

Fig. 4 shows the example of radio architecture to implement some embodiments；

Fig. 5 shows the algorithm for being used to determine the bit value in tone sets according to the unfavorable solution currently proposed；

Fig. 6 is shown according to one embodiment for determining the algorithm of the bit value in tone sets.

Fig. 7 shows the method executed at STA according to one embodiment；

Fig. 8 shows the method executed at AP according to one embodiment；And

Fig. 9 shows the block diagram of example machine, and any one of some embodiments or more can be executed in example machine Kind technology (for example, method)；And

Specific embodiment

The following description and drawings fully illustrate specific embodiment so that those skilled in the art can practice them.Other Embodiment may include structure, logic, electrical, process and other variations.The part of some embodiments and feature may include at other In embodiment, or part and the feature of substitution other embodiments.Embodiment described in claim includes that those rights are wanted All available equivalent forms asked.

Fig. 1 shows WLAN 100 in accordance with some embodiments.WLAN may include basic service set (BSS) 100, this is basic Services set may include that access point (AP) 102, multiple efficiently (HE) (for example, IEEE 802.11ax) stand (STA) 104 and multiple biographies Unite (for example, IEEE 802.11n/ac) STA 106.

One of 802.11 agreement of IEEE can be used to send and receive for AP 102.AP 102 can be base station.AP 102 can Use 802.11 agreement of other communication protocols and IEEE.IEEE802.11 agreement can be IEEE 802.11ax.IEEE 802.11 agreements may include using orthogonal frequency division multiple access (OFDMA), time division multiple acess (TDMA), and/or CDMA (CDMA) or Combinations of the above.802.11 agreement of IEEE may include multiple access technology.For example, 802.11 agreement of IEEE may include space division multiple access (SDMA) and/or multi-user's multiple-input and multiple-output (MU-MIMO).AP 102 and/or HE STA 104 can be used MU-MIMO and One or two of OFDMA.More than one AP 102 may be present, which is a part of extended service set (ESS).Control Device (not shown) processed can store the shared information of more than one AP 102.Controller can access the external network of such as internet.

Traditional STA 106 can according in IEEE one or more 802.11a/b/g/n/ac/ad/af/ah/aj or other Traditional wireless communication standard operates.HE STA 104 can be wireless transmission and receiving device, such as cellular phone, intelligence electricity Words, handheld wireless communication device, wireless glasses, wireless wrist watch, wireless personal device, tablet computer or usable IEEE802.11 The other equipment that agreement sends and receives, such as IEEE 802.11ax.In the figure shown in, HE STA is shown by way of example One in 104 is smart phone 124, another be tablet computer 126 and another be laptop computer 128.We Three HE STA 104 in Fig. 1 are also known as STA 124,126 or 128 sometimes.One or more illustrative HESTA 104 can By one or more user's operations.HE STA 104 (for example, 124,126 or 128) may include any suitable processor driving STA, including but not limited to desktop STA, STA on knee, server, router, interchanger, access point, smart phone, plate Computer, wearable wireless device (for example, bracelet, wrist-watch, glasses, ring etc.) etc..In some embodiments, HE STA 104, AP 102 and/or tradition STA 106 can be described as wireless telecom equipment or system.In some embodiments, HE STA 104 It can be " the group owner " (GO) for peering mode, wherein some operations of AP 102 can be performed in HE STA 104.

AP 102 can be communicated according to traditional 802.11 communication technology of IEEE with tradition STA 106.In example embodiment In, AP 102 can also configure to be communicated according to traditional 802.11 communication technology of IEEE with HE STA 104.

In some embodiments, HE frame can be configured to have bandwidth identical with channel.The bandwidth of channel can for 20MHz, 40MHz or 80MHz, 160MHz, 320MHz continuous bandwidth or 80+80MHz (160MHz) discontinuous bandwidth.In some embodiments In, the bandwidth of channel can be 1MHz, 1.25MHz, 2.03MHz, 2.5MHz, 5MHz and 10MHz or their combination, Huo Zheye Another bandwidth less than or equal to available bandwidth can be used.In some embodiments, the bandwidth of channel can be based in frequency domain Multiple effective subcarriers.For example, the bandwidth of channel may include multiple 26 (for example, 26,52,104,242 etc.) effectively subcarrier or Tone, effective subcarrier or pitch interval are the bandwidth of a certain amount of 20MHz.In some embodiments, the bandwidth of channel can Including 256 tones in 20MHz.In some embodiments, (FFT) is converted for 256 point quick Fouriers, 20MHz channel It may include 256 tones.In some embodiments, the tone of different number can be used.In some embodiments, OFDMA structure May include 26 subcarrier resources units (RU), 52 subcarrier RU, 106 subcarrier RU, 242 subcarrier RU, 484 subcarrier RU or 996 subcarrier RU or combinations of the above.Resource allocation for single user (SU) may include 242 subcarrier RU, 484 secondary loads Wave RU, 996 subcarrier RU or 2x996 subcarrier RU.

HE frame may include can be according to multiple spatial flows of MU-MIMO technology.In some embodiments, can according to OFDMA and One or two of MU-MIMO configures HE frame.In some embodiments, AP 102, HE STA 104 and/or tradition STA 106 also implementable different technologies, such as CDMA (CDMA) 2000, CDMA 2000IX, CDMA2000 Evolution-Data Optimized (EV-DO), interim standards 2000 (IS-2000), interim standards 95 (IS-95), interim standards 856 (IS-856), length Phase evolution (LTE), global system for mobile communications (GSM), the GSM evolution (EDGE) for enhancing data rate, GSM EDGE (GERAN), IEEE 802.16 (i.e. World Interoperability for Microwave Access, WiMax (WiMAX)),WiMAX, WiGig or other Technology.

Some embodiments are related to HE communication.According to some IEEE 802.11ax embodiments, AP 102 may be disposed so that competition nothing Exclusive control of the line medium (for example, during competing cycle) with reception for the medium of TXOP.In some embodiments, TXOP It can be described as transmission opportunity (TXOP).AP 102 can send HE trigger frame at the beginning of TXOP.AP 102 can be sent out in trigger frame Send duration and the channel information of TXOP.During TXOP, HE STA 104 can be according to such as OFDMA and/or MU-MIMO It is communicated based on non-competing multiple access technology with AP 102.This is different from conventional WLAN communication, and wherein equipment is according to competition-based The communication technology rather than multiple access technology communicate.During TXOP, one or more HE frames and HE STA are can be used in AP 102 104 communications.During TXOP, HE STA 104 can be operated on the channel of the opereating specification less than AP102, and conventional stations will be kept away Exempt to communicate with AP and be therefore arranged their network allocation vector (NAV).

According to some embodiments, in the transmission process of trigger frame, HE STA 104 can compete wireless medium, wherein tradition STA 106, which is excluded, to be competed except wireless medium.In some embodiments, trigger frame can indicate uplink (UL) UL-MU- MIMO and/or UL OFDMA controls the period.In some embodiments, trigger frame can indicate for some HE STA 104 based on One or more parts of one or more parts of the TXOP of competition and the TXOP for being not based on competition.

In the exemplary embodiment, HE STA 104 and/or AP 102 is configured to execute describes herein in conjunction with Fig. 1 to Fig. 6 Method and operation.Term Wi-Fi can refer to one or more in 802.11 communication standard of IEEE.AP and STA can refer to HE access point 102 and/or HE STA 104 and tradition STA 106.

IEEE 802.11ax definition is known as the mechanism of Empty packet (NDP) feedback report.NDP machine under 802.11ax System allows to generate the very short response to the trigger frame of AP by a large amount of STA.Each of these STA use UL MU-MIMO Trigger frame is responded together with other STA, is only transmitted without physical layer (PHY) preamble of the grouping of data payload (that is, passing Defeated UL NDP), and use the orthogonal distribution indicated in the efficient long training field (HE-LTF) in PHY preamble.Then, AP Each of these distribution can be executed with energy or Sequence Detection with the bit in each UL NDP of determination, and with this side Formula identifies which STA sends each (the having one or more bits, allow to determine the distribution ID for sending STA) of NDP, And what (energy/Sequence Detection) is the feedback from STA be.For example, what AP can be addressed via trigger frame inquiry by trigger frame Which STA wishes to be communicated with AP (by the resource request of AP), and it is desirable that corresponding UL NDP can be used to ring for the STA done so It answers.In each UL NDP, each feedback kind can be multiple bits, wherein feding back through the various of setting STA from STA Bit in tone assignment to occur in the form of ON/OFF or Y/N.Feedback kind can be asked for example including the resource from STA It asks, the power from STA saves request etc..When various UL NDP enter from various STA, by means of the predetermined distribution ID of STA The tone of the specific STA is distributed in identification, and AP will be appreciated by which distribution corresponds to which STA.

In some embodiments, HE STA 104 and AP 102 may include one or more functional diagrams similar to Fig. 4 and/ Or example machine/system computer system of Fig. 5.

According to some example embodiments of the disclosure, wireless network 100 allows to trigger downlink (DL) by AP Frame carries out OFDMA uplink resource allocation for multiple STA, is to send back the multiple of AP in being communicated by MU-MIMO later Uplink (UL) Empty packet (NDP) of STA is distributed.In this context, HE STA 104 can be communicated with AP102, and Data are sent in channel of operation.In order to send data in channel of operation, the tone of resource unit (RU) is can be used in HE STA Collection, the bandwidth allocation including multiple subcarriers or tone for signal transmission can be distributed defined in the frequency domain.HE STA 104 can be distributed tone sets or they can random access operation channel by AP.It, can relative to RU, such as in the frequency band of 20MHz There are 9 RU in total, the size of each RU is the basic RU of 26 tones.In DL trigger frame, AP 102 can be by one in RU Or more tone sets be assigned to one or more HE STA 104, and HE STA then can be based on their moneys in trigger frame The UL NDP to send them is distributed in source.

Fig. 2 describes to carry out according to the WLAN 100 for using Fig. 1 of one or more example embodiments of the disclosure The explanatory view of the Frame switch of OFDMA resource allocation.In the illustrated examples, STA 124,126 and 128 and AP 102 correspond respectively to the HE STA 104 and AP of previously described Fig. 1.

As shown in Fig. 2, AP 102 can send DL trigger frame 203 to STA 124,126 and 128 in the resource request stage.Touching Hair frame 203 can inquire whether STA 104 needs to send data.STA with data to be sent can be by only in corresponding UL Energy is sent on the distribution ID of its distribution in NDP 220 to send UL OFDMA request.For example, AP 102 can be ID points by distribution It is fitted on associated STA 124,126 and 128 in trigger frame 203.AP 102 can detect one or more resource blocks from STA On energy.For example, AP 102 can detect respectively from STA 124,126 and 128 send PHY preamble in resource block 204, Energy on 205 and 206.Other than P square matrix code, the distribution ID for giving STA can be corresponding with predetermined tone sets, such as each 6 tones of tone sets (tone sets of every 6 tones in such as RU), to identify the money on the given STA for just sending its UL NDP Source.Therefore, distribution ID can be indexed the unique combination indicated with P square matrix code as a STA by tone sets.Currently, distribution ID Using the first P row matrix (P matrix 0) for reaching preceding 18 users, since the tone sets 0 of RU and P matrix 0, and for 19th STA, will be moved into next P row matrix.

Therefore, after trigger frame 203 has been received, UL NDP 220 can be used to send resource request, UL to AP102 for STA NDP uses the corresponding distribution ID for being assigned to corresponding STA in previous trigger frame by AP.In an illustrative manner, each UL NDP will Using the code sequence in high efficiency (HE) long training field (LTF) (HE-LTF) of PHY preamble, PHY preamble is touched previously It sends out corresponding by the distribution ID of AP STA corresponding to distributing in frame.For example, if AP 102 is assigned to STA for ID 1 is distributed 124, then STA 124 is available with the resource block of the corresponding HE-LTF field of distribution ID 1.Resource block may be defined as given sky Between stream and tone sets combination, such as tone sets of 6 tones in frequency domain and time domain, wherein spatial flow is the row with P matrix Corresponding code sequence.In the case where expection single spatial flow, resource block can be simply corresponding with tone sets, such as frequency domain With the tone sets of 6 tones in time domain.

When AP 102 receives resource request in the form of UL NDP 220, wherein AP 102 can be true using distribution ID 1 Fixed corresponding STA 124 may need to be used for transmission the tone sets (for example, UL data 210) of its uplink data.AP 102 It can confirm that it receives resource request to STA, or can directly distribute resource without confirming to request STA.AP 102 is transmittable Second trigger frame (for example, trigger frame 208), the trigger frame notify to can be used for defeated point of uplink direction to STA 124 The tone sets matched.

In one embodiment, in the second trigger frame 208, AP 102 can based on the phase in associated UL NDP The received associated distribution ID of energy is answered on resource block to distribute tone sets.For example, when STA 128 using resource block 206 with When requesting resource, AP 102 can distribute one or more tone sets and they are associated with the distribution ID of energy is detected. Therefore, STA 128 can determine resource allocation to it based on distribution ID.Trigger frame can be used to send one or more for resource allocation More STA.Therefore, the resource (tone sets and P square matrix code) for requesting the STA distribution of access can be used to send the second touching for AP 102 Hair frame 208 transmits to open conventional uplink.Trigger frame 208 may include for channel access request confirmation (alternatively, Resource request ACK can be sent before trigger frame 208).After AP 102 receives the uplink data from STA 104, It can send corresponding STA for ACK 214,215 and 216.In some embodiments, ACK 214,215 and 216 can also be in list It is sent in frame, multi-user block confirmation (BlockAck) can confirm the reception of the data frame from all STA.

Fig. 3 describe according to the illustrative transmission of the resource request as described above of one or more embodiments of the disclosure and It receives.

In one embodiment, it is desirable to can initially be sent out to one or more STA that AP sends one or more UL data frames UL NDP to AP is sent, may be in response to the first touching from AP to STA in the first stage that the MU-MIMO between AP and STA is communicated Send out frame.Trigger frame can distribute distribution ID to various STA, or can be for the unallocated distribution ID's that can be used for random access Trigger frame.Their distribution ID can be used in the STA of distribution distribution ID in trigger frame, to notify AP that they are with to be sent Uplink data, and they need resource so as to send.The STA for not distributing distribution ID, which can be randomly choosed, to be triggered One in unallocated distribution ID noticed in frame.As described above, before STA may include one or more training fields Code is set, for example, HE-LTF.For example, STA 126 and 128 can each be sent out on through bandwidth used in resource request triggers frame At least one HE-STF frame is given, is the HE-LTF frame sent in the resource from distribution ID later.It can be sent out before HE-STF Send legacy preamble (L-STF, L-LTF and L-SIG).In the example shown, resource block may include the RU being made of 26 tones Interior tone sets.RU may further be the P matrix of 4 × 4P matrix or 2 × 2P matrix or another configuration.

In the example of fig. 3, the first row of 4 × 4P matrix can be used to send ULNDP for STA 126.Row as shown in the figure exists Extend in vertical direction in Fig. 3 in the form for being superimposed column, but referred to here as " row ", wherein each row is opposite from different spatial flows It answers.Referring back to STA 126, be shown as in the frequency domain (for example, resource block 324) in the first row of PxP matrix the 4th Energy is sent in resource.In addition, 4 × 4P matrix in the 6th resource (for example, resource block 326) in frequency domain can be used in STA 128 The 4th row send energy.It should be appreciated that the above is only one combined using P matrix and tone sets to determine resource block Example.However, other examples may include by will distribute ID be assigned to tone sets without with reference to P row matrix come using frequency domain and Time domain (resource block 324 or 326 shown in this case, by horizontal stretch into time-domain, and will not show row/ Row).

In one embodiment, the UL MU-MIMO format that AP 102 can be combined receives UL from STA124 and/or 126 NDP 320.When including the resource request in one or more HE-LTF fields from corresponding UL NDP reception, AP 102 can On various resource blocks detect energy (for example, in the fig. 3 embodiment, by from the different sequences of the P matrix in different tone sets Column are related).When AP 102 detects energy on the distribution ID for being assigned to STA, AP 102 may know that the STA has sent money Source request.When AP 102 detects energy on the resource block for random access, it records resource block ID and uses and is somebody's turn to do ID is as the identifier for being used for the STA.

With reference next to Fig. 4, such as STA 400 or AP400 (hereinafter referred to as STA/ are shown according to some illustrative embodimentss AP 400) wireless communication system block diagram, any one of HE STA 104 or AP 102 of such as Fig. 1.According to one A little illustrative embodimentss, wireless communication system may include wireless communication radio architecture.Shown in radio architecture may include nothing Line electricity front-end module (FEM) circuit 410, radio IC (IC) circuit 402 and baseband processor 409.In Fig. 4, answer When note that the expression of individual antenna may be interpreted as meaning one or more antenna.Although Fig. 4 shows single radio IC circuit block 402, single FEM circuit block 410 and single baseband processor block 409, but these blocks are considered as indicating one or more circuits A possibility that block, wherein potentially having a different set of circuit block, for example, different FEM circuits and/or different radio IC Circuit will play the role of providing correlation function as described herein.As it is used herein, " processing circuit " or " processor " can Including one or more processor blocks that can obviously identify.As it is used herein, " processing " may need processing or portion completely Divide processing；And " decoding " may need decoding or partial decoding of h completely.

FEM circuit 410 may include the reception signal path comprising circuit, which is to from one or more antenna 401 received Wi-Fi signals are operated, and are amplified received signal and are provided the amplified version of received signal to wireless IC Circuit 402 is for further processing.FEM circuit 410 may also include the transmission signal path comprising circuit, which may include matching The signal that amplification is provided by radio IC circuit 402 is set to be used to be wirelessly transferred by one or more antenna 401.Antenna can Including orientation or omnidirectional antenna, including, for example, dipole antenna, unipole antenna, paster antenna, loop aerial, microstrip antenna or suitable Together in the other kinds of antenna of RF signal transmission.In some multiple-input and multiple-outputs (MIMO) embodiment, it can efficiently separate Antenna is to utilize space diversity and the different channels characteristic that may cause.

Radio IC circuit 402 as shown in the figure may include receive signal path, the reception signal path may include to from 410 received signal of FEM circuit carries out down coversion and provides the circuit of baseband signal to baseband processor 409.Radio IC Circuit 402 may also include transmission signal path, which may include to the base band letter provided by baseband processor 409 Number carry out up-conversion circuit, and by RF output signal provide FEM circuit 410 be used for by one or more antenna 401 into Row then wireless transmission.In addition, embodiment includes providing to allow the wireless of LP-WU signal transmission within its scope within its scope Electric IC circuit.

Baseband processing circuitry 409 may include providing the processing circuit 414 of Wi-Fi function.In the present specification, Base-Band Processing Device 409 may include memory 412, such as, for example, Fast Fourier Transform (FFT) or the fast Fourier transforma of baseband processor 409 One group of array ram in block (not shown) is changed, comes from and processing circuit 414 can be read and be written data, such as, example wherein Data such as related with butterfly operation.Memory 412 can further store control logic.Processing circuit 414 can realize memory Interior control logic is to handle the reception signal path received signal from radio IC circuit 402.Baseband processor 409 is also matched It is set to the corresponding baseband signal of transmission signal path generation for being also used to radio IC circuit 402.It and can further comprise object Layer (PHY) and media access control layer (MAC) circuit is managed, and can be believed further with 406 interface of application processor for base band Number generation and processing, and the operation for controlling wireless IC circuit 402.

In some illustrative embodiments, front-end module circuit 410, radio IC circuit 402 and baseband processor 409 can It is provided on single radio card.In some other embodiments, one or more antenna can be provided on single radio card 401, FEM circuit 410 and radio IC circuit 402.In some other embodiments, radio IC circuit 402 and Base-Band Processing Device 409 can provide on one single chip or integrated circuit (IC).

In some other embodiments, the radio architecture of STA/AP 400 can be configured to send and receive using except OFDM Or the signal that one or more of modulation techniques except OFDMA are sent, such as band spectrum modulation is (for example, direct sequence CDMA (DS-CDMA) and/or frequency hopping code division multiple (FH-CDMA)), time division multiplexing (TDM) modulation and/or frequency division multiplexing (FDM) modulation, And on-off keying (OOK), although the range of embodiment is not limited to this aspect.

In some illustrative embodiments, the radio architecture of STA/AP 400 may include other radio cards, such as WiGig radio card, or cellular cellular radio cards are configured to (for example, such as LTE, LTE-Advanced or 5G are logical The 3GPP of letter).

In some IEEE802.11 embodiments, the radio architecture of STA/AP400 is configurable in various channel strips It is communicated on width, which includes the bandwidth of the centre frequency with 900MHz, 2.4GHz, 5GHz and less than 5MHz's Bandwidth, or the band of about 1MHz, 2MHz, 2.5MHz, 4MHz, 5MHz, 8MHz, 10MHz, 16MHz, 20MHz, 40MHz, 80MHz The combination of wide (with continuous bandwidth) or 80+80MHz (160MHz) (with discontinuous bandwidth) or any of above frequency or bandwidth, Or any frequency or bandwidth between the above-mentioned frequency or bandwidth explicitly pointed out.In some illustrative embodiments, it can be used 320MHz channel width.In another embodiment, the radio architecture of STA/AP 400 can be configured in being higher than 45GHz It is operated on frequency of heart.However the range of embodiment is unrestricted in terms of said frequencies.

Referring still to Fig. 4, in some illustrative embodiments, STA/AP 400 can further comprise input unit 418, defeated Unit 419, memory cell 408 out.STA/AP 400 optionally includes other suitable hardware componenies and/or software portion Part.In some illustrative embodiments, some or all of components of STA/AP 400 may include in common shell or encapsulation, And one or more wired or wireless link interconnection can be used or be operably associated.In other embodiments, STA/AP 400 component can be distributed in multiple or individual equipment.

In some illustrative embodiments, application processor 406 may include such as central processing unit (CPU), number letter Number processor (DSP), one or more processor cores, single core processor, dual core processor, multicore processing, microprocessor, host Processor, controller, multiple processors or controller, chip, microchip, one or more circuits, circuit, logic unit, collection At circuit (IC), application-specific integrated circuit (ASIC) or any other suitable multipurpose or par-ticular processor or controller.Application processor The instruction of the operating system (OS) and/or one or more suitable applications of 406 executable such as STA/AP 400.

In some illustrative embodiments, input unit 418 may include that one or more inputs on such as circuit board are drawn Foot, keyboard, keypad, mouse, touch screen, touch tablet, control ball, input pen, microphone or other suitable indicating equipments or Input equipment.Output unit 419 may include one or more output pins, monitor, screen, touch on such as circuit board Screen, flat-panel monitor, light emitting diode (LED) display unit, liquid crystal display (LCD) display unit, plasma display are single First, one or more audio tweeters or earphone or other suitable output equipments.

In some illustrative embodiments, memory cell 408 may include such as random access memory (RAM), read-only Memory (ROM), synchronous dram (SD-RAM), flash memories, volatile memory, non-volatile is deposited dynamic ram (DRAM) Reservoir, cache memory, buffer, short term memory unit, long term memory unit or other suitable memory lists Member.Storage unit 417 may include such as hard disk drive, floppy disk drive, CD (CD) driver, CD-ROM drive, DVD Driver or other suitable removable or irremovable storage units.For example, memory cell 408 and/or storage unit 417 The data handled by STA/AP 400 can be stored.

Some illustrative embodimentss include wireless telecom equipment, the baseband processor 409 of such as Fig. 4, including memory, all Such as memory 412 and processing circuit, the processing circuit 414 of such as coupled memory.Processing circuit is from memory read data And it writes data into.For example, processing circuit from memory read data and can write data into, such as close In the data of FFT and IFFT butterfly operation, which can be read and the corresponding random access memory of memory (RAM) is written In memory bank.UL NDP further can be encoded to AP by processing circuit, similar to the UL NDP of the UL NDP 220 or Fig. 3 of Fig. 2 330.UL NDP can be encoded at least two tone sets for encoding at least two bits, which is used for Transmission energy and information in each UL NDP, such as above with respect to Fig. 2 and Fig. 3 energy described and information each UL-NDP's It is transmitted to AP in the resource block of the part HE-LTF, so as to the mark and its resource request of indicating equipment.

For example, UL NDP may be adapted on 9 RU send, wherein each of 9 RU are made of 26 tones, and Each of 26 tones include 4 tone sets, 6 tones of every tone sets (wherein remaining 2 tones are as empty tone).Example It such as can refer to Fig. 3,9 RU of each HE-STF in frequency domain and time domain be shown, one of RU, the RU in resource block 324 is used The UL NDP from STA 128, packet are used in the RU in the UL NDP of a STA 126 or in which RU, resource block 326 It includes for being used for the specific energy-delivering tone sets of STA in UL NDP.However, embodiment is without being limited thereto, and for example pre- More than one RU is assigned to STA and is used to its UL NDP information being transmitted to AP by the phase, or the tone sets being so assigned on RU.It is real Example is applied advantageously to be expected using processing circuit to encode UL NDP, so that the bit number encoded in the tone sets of UL-NDP is not small Subtract 1 in the quantity of one or more tone sets for transmitting those bits.Therefore, according to embodiment, wherein using 3 tones Collection is to transmit the bit for UL NDP, therefore the bit number communicated in UL NDP will be not less than 2.It is compiled according to for UL NDP The current proposals of code, each bit is in 2 tone sets interior codings, it is intended that 4 tone sets can only transmit 2 bits, and current 4 tone sets of embodiment can transmit at least three bit.

For some embodiments it is contemplated that encoding UL NDP at least two tone sets, which encodes at least two ratios together It is special.First bit of at least two bits will collect interior coding at least the first of at least two tone sets.At least two bit Subsequent bit by the subsequent collection interior coding of at least two tone sets, and the value of the subsequent bit is based on for compiling The value of the tone of the first bit of code.Processing circuit further causes UL NDP and is transferred to AP, such as by sending baseband signal To radio IC, FEM and it is used for transmission the antenna of AP.

Embodiment brings above-mentioned advantage in a manner of being further described below with reference to Fig. 5 and Fig. 6.

With reference next to Fig. 5, show according to the unfavorable solution currently proposed to determine the bit value in tone sets The example of algorithm 500.As shown in figure 5, resource allocation 540 may include four tone sets, such as four collection, each collection includes equal The tone of quantity, including S1, S2, S3 and S4.In the example shown, the value of settable every collection tone, so that can compare at 542 To the energy or power level (power level determined at receiver (AP)) coped in collection to determine at 544 by each pair of collection The value of the bit of expression.It can be by the power summation in each tone being concentrated to one come the power level of every collection determining at AP. In Fig. 5, S1 and S2 are for transmitting the value of the first bit b1, and S3 and S4 is used to transmit the value for the second bit b2.It is grasping Making at 542, K indicates to determine that scale factor, the scale factor can have the value of 1-5, such as value 3, or needed depending on application Any other integer value.Operation 542 at, in the example shown, wherein the power in S1 (P_S1) greater than K the judgement factor and Power (P_S2) in S2, then b1 is decoded as having value 1 at AP.However, if contrary circumstance is set up, that is, big in P_S2 In the case where the factor of K and P_S1, then b1 is decoded as having value 0 at AP.In a similar way, in the example shown, The wherein power (P_S4) in the factor and S4 of the power in S3 (P_S3) greater than K, then b2 is decoded as having value 1 at AP. But if contrary circumstance is set up, that is, wherein P_S4 is greater than the factor and P_S3 of K, and then b2 is decoded as having value 0 at AP. If AP should determine the following conditions: P_S1 is invalid greater than the factor of K and P_S2, and then AP does not connect determination from given STA Receive UL NDP.It should be recognized by those skilled in the art that using P row matrix, in addition to power above compares Except, AP will execute despreading to each P row matrix.Above scheme is unfavorable, because it requires each bit by two tones Set representations, it is therefore desirable to which twice of tone sets are to encode the bit of the given quantity of the UL NDP for specific STA.

May be assumed that the following contents in the context of some exemplary embodiments: (1) tone sets can be in time/frequency/sky Between in domain orthogonal (each can be transmitted independent information)；It (2) can be a STA feedback point in the resource block that UL NDP is distributed With one or two bit；(3) bit, such as the first bit are sent under the first option, and two tone sets can be used, and And under the second option, can be used using P matrix two rows one collection tone (that is, a bit can be used two tone sets-its In it is each collect with another collect it is adjacent or non-conterminous-can be distinguished from each other under frequency domain in a P row matrix or P matrix two One group of tone in row, the P matrix have the feature of the fact that this group be different from two different rows)；(4) for than Special energy measuring will not need channel estimation；And (5) AP and STA has the tone sets and P- matrix for giving UL-NDP The preparatory agreement of extension, and these parameters can be provided by the DL trigger frame from AP to STA to STA.

Some embodiments are it is contemplated that uncoded first bit b1 in two tone sets (option 1), or using using 2 row P squares The combination (option 2) of the tone sets of battle array.Therefore at most 2 tone sets uncoded first bits are used, embodiment is it is contemplated that corresponding Any subsequent ratio of coding in (that is, since the last one set tone for encoding b1 in continuous tone sets) subsequent tone sets Spy, i.e. b2, b3 etc..Therefore, in option 1 in the case where encoding b1, then b2 to bn (wherein n is integer) can be in S3 to Sn Interior coding (S1 and S2 have been used to coding b1), so that in addition to other aspects, the respective value of b2 to bn depends on the value of b1. In option 2 in the case where encoding b1, then b2 to bn can (only S1 and two row P- matrixes to have been used for compiling in S2 to Sn interior coding Code b1) so that the respective value of b2 to bn depends on the value of b1 in addition to other aspects.

Exemplary algorithm 600 for option 1 is shown in FIG. 6.In this example, the resource allocation 640 of such as RU can wrap Four tone sets, such as four collection are included, each collection includes the tone of equal amount, including S1, S2, S3 and S4.In shown example In, the settable value for every collection tone, so that may compare the energy or power in first couple of tone sets S1 and S2 at 642 Horizontal (power level determined at receiver (AP)) is with the value of the determining b1 at 644.It can be by concentrating each sound to one Power summation in tune determines every group of power level the sum of (determining with the associated power of corresponding tone).In Fig. 6, S1 and S2 is used to transmit the value for the first bit b1, and S3 and S4 is used to transmit the correspondence in b2 and b3 (third bit) The value of value.At operation 642, K indicates scheduled judgement scale factor, which can have the value of 1-5, such as be worth 3.The factor can be only in the side AP it is known that can reach an agreement between STA and AP.The factor can further be hardwired to circuit It is middle as fixed value or it can based on application need and change.At operation 642, in the example shown, wherein S1 (P_S1) Interior power is greater than the power (P_S2) in K factor and S2, and then b1 is decoded as having value 1 at AP.If contrary circumstance at It is vertical, that is, P_S2 is greater than the factor and P_S1 of K, and then b1 is decoded as having value 0. however, moving forward to subsequent collection at AP In, in the example shown, the mode for setting the power in subsequent tone sets depends on the value of b1.Therefore:

A. wherein the value of b1 is equal to 1 (wherein P_S1 > K.P_S2), and the value of b2 is equal to 1, then the power in S3 (P_S3) It is equal to P_S1, this means P_S3 > K.P_S2, indicates b2=1 to AP；

B. wherein the value of b1 is equal to 1 (wherein P_S1 > K.P_S2), and the value of b2 is equal to 0, then the power in S3 (P_S3) It is equal to P_S2, this means P_S1 > K.P_S3, indicates b2=0 to AP；

C. wherein the value of b1 is equal to 0 (wherein P_S2 > K.P_S1), and the value of b2 is equal to 1, then the power in S3 (P_S3) It is equal to P_S1, this means P_S2 > K.P_S3, indicates b2=1 to AP；

D. wherein the value of b1 is equal to 0 (wherein P_S2 > K.P_S1), and the value of b2 is equal to 0, then the power in S3 (P_S3) It is equal to P_S2, this means P_S3 > K.P_S1, indicates b2=0 to AP.

From upper we see that, as P_S3=P_S1, then b2=1, and as P_S3=P_S2, then b2=0.

Therefore UL NDP can be encoded, so that the bit after the first bit, such as bn, have and depend on for compiling The value of the pitch value of one collection tone of the first bit of code.It would be recognized by those skilled in the art that the case where using P row matrix Under, in addition to power ratio above is compared with other than, AP will execute despreading to each P row matrix.In such cases, rather than only refer to In the above description by " S " indicate tone sets in power, can more generally refer to for each power level " code " or "C"." C " can indicate one group of tone (similar to " S " used), alternatively, " C " can refer to wrap using option 2 Include the combination of one group of tone and P square matrix code.In either case, condition described in above-mentioned a to d will be suitable for " C " replacement " S " is used for option 2.

It should be noted that description relative to figure 6 above, and relative to embodiment, shows and describe in Fig. 6 and is specific Compare between the correspondence power level of corresponding tone sets to allow to determine that corresponding bits value is not construed as limiting.It will allow STA those of encode any predetermined and association between power level to its UL NDP in a manner of allowing AP to decode its bit The set of relations of view will be in the range of embodiment.

According to some embodiments, the DL trigger frame from AP, the DL trigger frame 203 of such as Fig. 2, it may include about UL NDP Coding parameter or information, and especially treat the coding of the bit being assigned in the tone sets of STA, with allow AP and STA distributes resource using previously described UL NDP mechanism.Therefore, trigger frame may include at least one information below: compile Multiple tone sets of code bit；Multiple tone sets of uncoded first bit, the multiple tones for encoding one or more subsequent bits Collection and with the associated corresponding power of the tone of corresponding tone sets and.

Fig. 7 shows the first embodiment for the method realized at wireless telecom equipment, the STA 400 of such as Fig. 4.In Fig. 7 Method 700 be included in operation 702 at by reading data and write-in memory；At operation 704, at least two tone sets Uplink (UL) Empty packet (NDP) is encoded, which encodes at least two bits together, in which: should First bit of at least two bits is encoded in at least first collection of at least two tone sets；And after the first bit At least two bits subsequent bit will encode at least two tone sets after at least first group it is subsequent collect in, and So that then the value of bit is based on the value of the tone for uncoded first bit.At operation 710, this method further comprises making It obtains UL NDP and is transferred to access point (AP).

Fig. 8 shows the first embodiment for the method realized at wireless telecom equipment, the AP 400 of such as Fig. 4.In Fig. 8 Method 800 is included at operation 802 will be in reading data and write-in memory；At operation 804, so that downlink (DL) is more User (MU) multiple-input and multiple-output (MIMO) trigger frame is transferred to multiple radio stations (STA)；And at operation 806, from multiple At least some of STA decodes uplink (UL) MU-MIMO frame, which includes the correspondence from corresponding STA Each UL NDP of uplink (UL) Empty packet (NDP), corresponding UL NDP is encoded together at least two tone sets At least two bits.This method further comprises: at operation 808, by at least first collection for decoding at least two tone sets Determine the value of the first bit of at least two bits；At operation 810, by decoding at least two after at least first collection The subsequent collection of tone sets determines the value of the subsequent bit of at least two bits after the first bit, the value base of subsequent bit In the value of the first bit；And at operation 812, value and subsequent bit based on the first bit in each UL NDP Value, so that at least some STA with multiple STA are communicated.

Fig. 9 shows the block diagram of example machine 900, and discussed herein appoint can be performed in the example machine 900 What one or more of technology (for example, method).In alternative embodiments, machine 900 can be used as autonomous device operation or can connect (for example, networking) is connect to other machines.In networked deployment, machine 900 can be in server-client network environment with service The volume operation of device machine, client machine or both.In this example, machine 900 may act as reciprocity (P2P) (or other distributions Formula) peer machines in network environment.Machine 900 can be AP 102, HE STA 104, personal computer (PC), tablet PC, machine Top box (STB), personal digital assistant (PDA), mobile phone, smart phone, the network equipment, network router, interchanger or net Bridge or any machine for being able to carry out instruction (sequence or other), the specified movement taken by the machine.Although in addition, only showing Individual machine out, but term " machine " should also be regarded as including executing one group (or multiple groups) instruction alone or in combination to execute this paper institute Any machine collection of any one of discussion or more, such as cloud computing, software are as service (SaaS), other computers Cluster configuration.

As described herein, example may include logic or multiple components, module or mechanism, or can be in logic or multiple portions It is operated in part, module or mechanism.Module is to be able to carry out the tangible entity (for example, hardware) of specified operation, and can be with certain Mode is configured or is arranged.In this example, it is possible to specify mode cloth circuits (for example, inside or relative to such as other electricity The external entity on road) it is used as module.In this example, one or more computer systems are (for example, independent client or server Computer system) or one or more hardware processors all or part of can by firmware or software (for example, instruction, application Program part or application program) module of specified operation is executed as operation.In this example, software can reside in machine readable On medium.In this example, software is in the bottom hardware execution by module, so that hardware executes specified operation.

Therefore, term " module " is interpreted as comprising tangible entity, which is physique, specific configuration (for example, hard-wired) or interim (for example, temporary) configuration (for example, programming) operates or executes in a specific way sheet Some or all of any operation of text description.In view of the example of provisional configuration module, do not need to instantiate at any one time Each module.For example, common hardware processor can in the case where module includes the common hardware processor using software configuration Corresponding disparate modules are configured in different time.Therefore, software-configurable hardware processor, for example, constituting at a certain moment special Cover half block, and different modules is constituted at different times.

Machine (for example, computer system) 900 may include hardware processor 902 (for example, central processing unit (CPU), figure Shape processing unit (GPU), hardware processor core or any combination thereof), main memory 904 and static memory 906, it is therein Some or all can communicate with one another via inter-connection links (for example, bus) 908.Machine 900 can further comprise display equipment 910, input equipment 912 (for example, keyboard) and user interface (UI) navigation equipment 914 (for example, mouse).In this example, it shows Equipment 910, input equipment 912 and UI navigation equipment 914 can be touch-screen display.Machine 900 can also comprise large capacity and deposit Reservoir (for example, driving unit) 916, signal generating device 918 (for example, loudspeaker), network interface device 920 and one Or more sensor 921, such as global positioning system (GPS) sensor, compass, accelerometer or other sensors.Machine 900 may include o controller 928, such as serial (for example, universal serial bus (USB), parallel or other are wired or wireless (for example, infrared (IR), near-field communication (NFC) etc.) connection is to communicate or control one or more peripheral equipments (for example, printing Machine, card reader etc.).In some embodiments, processor 902 and/or instruction 924 may include processing circuit and/or transceiver electricity Road.

Storing equipment 916 may include machine readable media 922, be stored thereon by skill any one of described herein or more One group or more or 924 (for example, softwares) of instruction that art or function are implemented or utilized.Instruction 924 can also be in machine It is completely or at least partially resided in 900 implementation procedures in main memory 904, static memory 906 is interior or hardware processor In 902.In this example, in hardware processor 902, main memory 904, static memory 906 or storage equipment 916 One or any combination may make up machine readable media.

Although machine readable media 922 is illustrated as single medium, term " machine readable media " may include single medium Or it is configured to store multiple media of one or more instructions 924 (for example, centralized or distributed database, and/or associated Cache and server).

The device of machine 900 can be hardware processor 902 (for example, central processing unit (CPU), graphics processing unit (GPU), hardware processor core or any combination thereof) it is one or more in main memory 904 and static memory 906, Some or all of can communicate with one another via inter-connection links (for example, bus) 908.

Term " machine readable media " may include that can store, encode or carry instruction for being executed by machine 900 simultaneously And machine 900 is made to execute any medium of any one of the disclosure or more, or can store, encode or carry Use or data structure associated with such instruction are instructed by this class.Non-limiting machine readable media example may include solid-state Memory and optics and magnetic medium.The specific example of machine readable media can include: nonvolatile memory is such as partly led Body memory equipment (for example, electric programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM)) And flash memory device；Disk, such as internal hard drive and moveable magnetic disc；Magneto-optic disk；Random access memory (RAM)；And CD- ROM and DVD-ROM disk.In some instances, machine readable media may include non-transitory machine readable media.Show some In example, machine readable media may include the machine readable media for not being temporary transmission signal.

Instruction 924 can further be utilized on communication network 926 via network interface device 920 using transmission medium a variety of Any one of transport protocol is (for example, frame relay, Internet protocol (IP), transmission control protocol (TCP), User Datagram Protocol View (UDP), hypertext transfer protocol (HTTP) etc.) it sends or receives.Example communication network may include local area network (LAN), wide Domain net (WAN), packet data network (for example, internet), mobile telephone network (for example, cellular network), ordinary old style telephone (POTS) network and radio data network are (for example, 802.11 families of standards of Institute of Electrical and Electric Engineers (IEEE) is known as802.16 families of standards of IEEE is known as), IEEE 802.15.4 families of standards, long term evolution (LTE) families of standards, Universal Mobile Telecommunications System (UMTS) families of standards, equity (P2P) network etc..

In this example, network interface device 920 may include one or more physical sockets (for example, Ethernet, coaxial or electricity Talk about socket) or one or more antenna to be connected to communication network 926.In this example, network interface device 920 may include one Or more antenna 960 to use single input and multi-output (SIMO), multiple-input and multiple-output (MIMO) or multiple input single output (MISO) At least one of technology carries out wireless communication.In some instances, multiuser MIMO technology can be used in network interface device 920 It carries out wireless communication.Term " transmission medium " should be regarded as including that any can store, encode or carry for being executed by machine 900 Instruction any intangible medium, and including number or analog communication signal or other intangible mediums to promote such software Communication.

Various embodiments can be realized completely or partially with software and/or form of firmware.The software and/or firmware can be used Included in non-transitory computer-readable storage media or on instruction form.It then, can be by one or more processors Those instructions are read and executed to be able to carry out operation described herein.Instruction can be any suitable form, such as but unlimited In source code, compiled code, interpretive code, executable code, static code, dynamic code etc..Such computer-readable medium It may include any tangible non-transitory medium for storing information with one or more computer-reader forms, it is such as but unlimited In read-only memory (ROM)；Random access memory (RAM)；Magnetic disk storage medium；Optical storage media；Flash memory etc..

Example

Following example is related to other embodiments.

Example 1 includes wireless telecom equipment, which includes the processing electricity of memory and coupled memory Road, processing circuit are used for: from memory read data and being write data into；In at least two tone sets on coding Line link (UL) Empty packet (NDP), at least two tone sets encode at least two bits together, in which: at least two ratios The first special bit will encode in at least first collection of at least two tone sets；And after the first bit extremely by coding The subsequent bit of few two bits: in the subsequent collection of at least two tone sets after at least first collection；And make then Value of the value of bit based on the tone for uncoded first bit；And UL NDP is made to be transferred to access point (AP).

Example 2 includes the theme of example 1, and optionally, and the wherein at least first collection is by the first of at least two tone sets Collection and the second collection composition.

Example 3 includes the theme of example 1, and optionally, wherein the first bit will be the first of at least two tone sets The combination interior coding of two rows of collection and P matrix.

Example 4 includes the theme of example 2, and optionally, wherein at least two tone sets are made of three tone sets, and three A tone sets encode three bits.

Example 5 includes the theme of example 2, and optionally, and wherein processing circuit is used for as the first collection and the second collection setting Pitch value so that: coding be used for the first bit the first value, with first collection the associated power of diaphone phase modulation and be greater than with The sum of second group of the associated power of diaphone phase modulation is multiplied by scheduled judgement scale factor；And the first bit is used for coding Second value, the sum of the associated power of diaphone phase modulation with second group is greater than the associated power of diaphone phase modulation with first group Sum multiplied by scheduled judgement scale factor.

Example 6 includes the theme of example 5, and optionally, and wherein processing circuit is pitch value of the setting for then collecting, So that: to encode the first value for being used for subsequent bit, with the associated power of diaphone phase modulation that then collects and be equal to and first The sum of the associated power of diaphone phase modulation of collection；It is associated with subsequent collection tone to encode the second value for being used for subsequent bit The sum of power equal to the second associated power of collection tone and.

Example 7 includes the theme of example 5, and optionally, wherein the scheduled judgement factor is between 1 to 5.

Example 8 includes the theme of any one of claims 1 to 7, and wherein UL NDP is made of 9 RU, every in 9 RU One is made of 26 tones, and 26 tones of every collection are divided into 4 tone sets, 6 tones of each tone sets.

Example 9 includes the theme of any example in example 1 to 7, and optionally, wherein processing circuit is further used for: Trigger frame is decoded from access point, which includes the letter about the coding of at least two bits at least two tone sets Breath；And UL NDP is encoded based on the decoding of trigger frame.

Example 10 includes the theme of example 9, and optionally, wherein information is based at least one of the following: encoding ratio Special multiple tone sets；Multiple tone sets of uncoded first bit, multiple tone sets of the one or more subsequent bits of coding, with And each bit value and with the associated corresponding power of the tone of each corresponding tone sets and between relationship.

Example 11 includes the theme of example 1, and optionally, further comprises being coupled to wirelessly being electrically integrated for processing circuit Circuit and the front-end module for being coupled to radio IC.

Example 12 includes the theme of example 11, and further comprises the mutiple antennas for being coupled to front-end module optionally.

Example 13 includes product, which includes the readable non-transitory storage medium of one or more tangible computers, should The readable non-transitory storage medium of tangible computer includes computer executable instructions, which can operate by least one Computer processor enables at least one computer processor realize operation, operation packet at wireless telecom equipment when executing It includes: by reading data and being written in memory；Uplink (UL) Empty packet is encoded at least two tone sets (NDP), at least two tone sets encode at least two bits together, in which: the first bit of at least two bits will encode In at least first collection of at least two tone sets；Also, by the subsequent ratio of at least two bits of the coding after the first bit It is special: in the subsequent collection of at least two tone sets after at least first collection；And the value of subsequent bit is based on for compiling The value of the tone of the first bit of code；And UL NDP is made to be transferred to access point (AP).

The theme of example 14 including example 13, and optionally, the wherein at least first collection is by the of at least two tone sets One collection and the second collection composition.

The theme of example 15 including example 13, and optionally, wherein the first bit will be the of at least two tone sets The combination interior coding of two rows of one collection and P matrix.

Example 16 includes the theme of example 14, and optionally, wherein at least two tone sets are made of three tone sets, Three tone sets encode three bits.

The theme of example 17 including example 14, and optionally, wherein operation further comprise setting for the first collection and Second collection setting pitch value, so that: the associated function of diaphone phase modulation to encode the first value for being used for the first bit, with the first collection The sum of rate greater than with second collection the associated power of diaphone phase modulation sum multiplied by scheduled judgement scale factor；And with coding For the second value of the first bit, with the sum of the associated power of diaphone phase modulation of the second collection greater than the corresponding tone with the first collection The sum of associated power is multiplied by scheduled judgement scale factor.

Example 18 includes the theme of example 17, and optionally, wherein operation further comprises setting for then collecting Pitch value so that: the first value to encode subsequent bit, with the associated power of diaphone phase modulation that then collects and be equal to and the The sum of the associated power of diaphone phase modulation of one collection；It is related to the tone then collected and to encode the second value of subsequent bit The sum of the power of connection equal to the associated power of tone of the second collection and.

Example 19 includes the theme of real example 17, and optionally, wherein predetermined determine the factor between 1 and 5.

Example 20 includes the theme of any one of example 13 to 19, and optionally, wherein UL NDP is made of 9 RU, and 9 Each of a RU is made of 26 tones, and every group of 26 tones are divided into 4 tone sets, 6 sounds of each tone sets It adjusts.

Example 21 includes the exemplary theme of any of example 13 to 19, which further comprises decoding to touch from access point Frame is sent out, which includes the information about the coding of at least two bits at least two tone sets.

Example 22 includes the theme of example 21, and optionally, wherein information is based at least one of the following: encoding ratio Special multiple tone sets；Multiple tone sets of uncoded first bit, multiple tone sets of the one or more subsequent bits of coding, with And bit value and with the associated corresponding power of the tone of each corresponding tone sets and between relationship.

Example 23 includes the method executed at wireless telecom equipment, which includes memory and be coupled to The processing circuit of memory, this method comprises: by reading data and write-in memory；Uplink is encoded at least two tone sets Link (UL) Empty packet (NDP), at least two tone sets encode at least two bits together, in which: at least two bits The first bit will encode at least two tone sets at least first collection in；Also, at least two after the first bit The subsequent bit of bit will encode: in the subsequent collection of at least two tone sets after at least first collection；And make then Value of the value of bit based on the tone for uncoded first bit；And UL NDP is made to be transferred to access point (AP).

The theme of example 24 including example 23, and optionally, the wherein at least first collection is by the of at least two tone sets One collection and the second collection composition.

The theme of example 25 including example 23, and optionally, wherein the first bit will be the of at least two tone sets The combination interior coding of two rows of one collection and P matrix.

Example 26 includes the theme of example 24, and optionally, wherein at least two tone sets are made of three tone sets, Three tone sets encode three bits.

Example 27 includes the theme of example 24, and optionally, further comprises setting for the first collection and the second collection Pitch value so that: with the first value of uncoded first bit, with the associated power of diaphone phase modulation of the first collection and be greater than and the The sum of the associated power of diaphone phase modulation of two collection is multiplied by scheduled judgement scale factor；And to encode for the first bit Second value, the sum with the associated power of diaphone phase modulation of the second collection is greater than the associated power of diaphone phase modulation with the first collection With multiplied by scheduled judgement scale factor.

Example 28 includes the theme of example 27, and optionally, further comprises pitch value of the setting for then collecting, makes : to encode the first value for being used for subsequent bit, with the associated power of diaphone phase modulation then gathered and be equal to and first The sum of the associated power of diaphone phase modulation of collection；And to encode the second value for being used for subsequent bit, with the tone phase then collected The sum of associated power equal to the associated power of tone of the second collection and.

Example 29 includes the theme of example 27, and optionally, wherein predetermined determine the factor between 1 and 5.

Example 30 includes the exemplary method of any of example 23 to 29, and optionally, wherein UL NDP is by 9 RU groups At each of 9 RU are made of 26 tones, and 26 tones of every collection are divided into 4 tone sets, each tone sets 6 A tone.

Example 31 includes the exemplary method of any of example 23 to 29, and further comprises from access point optionally Trigger frame is decoded, which includes the information about the coding of at least two bits at least two tone sets.

Example 32 includes the theme of example 31, and optionally, wherein information is based at least one of the following: encoding ratio Special multiple tone sets；Multiple tone sets of uncoded first bit, multiple tone sets of the one or more subsequent bits of coding, with And the associated corresponding power of tone of the value and tone sets corresponding with each of each tone sets of bit and between relationship.

Example 33 includes wireless telecom equipment, which includes memory and the processing electricity for being coupled to memory Road, the equipment include: for by reading data and write-in memory component；For encoding uplink at least two tone sets The component of link (UL) Empty packet (NDP), at least two set of tones encode at least two bits together, in which: at least First bit of two bits will encode in at least first collection of at least two tone sets；Also, after the first bit The subsequent bit of at least two bits will encode: in the subsequent collection of at least two tone sets after at least first collection；And So that then the value of bit is based on the value of the tone for uncoded first bit；And for so that UL NDP is transferred to access point (AP) component.

The theme of example 34 including example 33, and optionally, the wherein at least first collection is by the of at least two tone sets One collection and the second collection composition.

The theme of example 35 including example 33, and optionally, wherein the first bit will be the of at least two tone sets The combination interior coding of two rows of one collection and P matrix.

Example 36 includes wireless telecom equipment, which includes the processing of memory and coupled memory Circuit, processing circuit are used for: from memory read data and being write data into；Cause downlink (DL) multi-user (MU) transmission of multiple-input and multiple-output (MIMO) trigger frame to multiple radio stations (STA)；It is decoded from least some of multiple STA Uplink (UL) MU-MIMO frame, the UL MU-MIMO frame include the empty data point of correspondence uplink (UL) from corresponding STA Each UL NDP of group (NDP), corresponding UL NDP encodes at least two bits together at least two tone sets；Pass through decoding At least first group of at least two tone sets, determines the value of the first bit of at least two bits；And existed by decoding The subsequent collection of at least two tone sets after at least first group is to determine the subsequent of at least two bits after the first bit The value of bit, the value of subsequent bit are the values based on the first bit；And based on the first bit in each UL NDP The value of value and subsequent bit, so that being communicated at least some of multiple STA.

The theme of example 37 including example 36, and optionally, the wherein at least first collection is by the of at least two tone sets One collection and the second collection composition.

Example 38 includes the theme of example 36, and optionally, wherein the first bit is the first of at least two tone sets The combination interior coding of two rows of collection and P matrix, decoding includes that every a line in two rows to P matrix executes despreading.

Example 39 includes the theme of example 37, and optionally, wherein at least two tone sets are made of three tone sets, Three tone sets encode three bits.

Example 40 includes the theme of example 37, and optionally, processing circuit is further used for: in response to determining and first The sum of the associated power of diaphone phase modulation of collection greater than with second collection the associated power of diaphone phase modulation sum multiplied by scheduled Determine the scale factor factor, determines the first value for being used for the first bit；It is associated in response to determining with the diaphone phase modulation of the second collection Power sum greater than the associated power of diaphone phase modulation with the first collection sum multiplied by scheduled judgement scale factor, determine the The second value of one bit.

Example 41 includes the theme of example 40, and optionally, processing circuit is further used for: in response to determining and subsequent The commercial affairs of the diaphone phase modulation of collection associated power and equal to the associated power of diaphone phase modulation with the first collection and, determine and be used for First value of subsequent bit；And the sum in response to determining power associated with the tone then collected is equal to the sound with the second collection The sum of the associated power of phase modulation, determines the second value of subsequent bit.

Example 42 includes the theme of example 40, and optionally, wherein predetermined determine the factor between 1 and 5.

Example 43 includes the exemplary theme of any of example 36 to 42, and optionally, wherein UL NDP is by 9 RU groups At each of 9 RU are made of 26 tones, and every group of 26 tones are divided into 4 tone sets, each tone sets 6 A tone.

Example 44 includes the exemplary theme of any of example 36 to 42, and optionally, wherein trigger frame include about The information of the coding of at least two bits at least two tone sets.

Example 45 includes the theme of example 44, and optionally, wherein information is based at least one of the following: encoding ratio Special multiple tone sets；Multiple tone sets of uncoded first bit, multiple tone sets of the one or more subsequent bits of coding, with And each bit value and with the associated corresponding power of the tone of each corresponding tone sets and between relationship.

Example 46 includes the theme of example 36, and further comprises the radio collection for being coupled to processing circuit optionally At circuit, and it is coupled to the front-end module of radio IC.

Example 47 includes the theme of example 46, and further comprises the mutiple antennas for being coupled to front-end module optionally.

Example 48 includes product, which includes the readable non-transitory storage medium of one or more tangible computers, should The readable non-transitory storage medium of tangible computer includes computer executable instructions, which can operate by least one When computer processor executes, at least one computer processor is enable to realize operation, operation packet at wireless telecom equipment It includes: by reading data and being written in memory；Downlink (DL) multi-user (MU) multiple-input and multiple-output (MIMO) is caused to touch Send out the transmission of frame to multiple radio stations (STA)；Uplink (UL) MU-MIMO frame is decoded from least some of multiple STA, it should UL MU-MIMO frame includes each of correspondence uplink (UL) Empty packet (NDP) from corresponding STA, corresponding UL NDP UL NDP encodes at least two bits together at least two tone sets；Pass through at least at least two tone sets of decoding One value for collecting to determine the first bit of at least two bits；Also, pass through at least two sounds after at least first collection of decoding The subsequent collection assembled determines that the value of the subsequent bit of at least two bits, the value of subsequent bit are the value based on the first bit；And And the value of the value and subsequent bit based on the first bit in each UL NDP, so that at least some of with multiple STA It is communicated.

The theme of example 49 including example 48, and optionally, the wherein at least first collection is by the of at least two tone sets One collection and the second collection composition.

Example 50 includes the theme of example 48, and optionally, wherein the first bit is the first of at least two tone sets The combination interior coding of two rows of collection and P matrix, decoding includes executing despreading to each of the row of two P matrixes.

Example 51 includes the theme of example 49, and optionally, wherein at least two tone sets are made of three tone sets, Three tone sets encode three bits.

Example 52 includes the theme of example 49, and optionally, operation further comprises: in response to determining and the first collection The sum of the associated power of diaphone phase modulation greater than with second collection the associated power of diaphone phase modulation sum multiplied by scheduled judgement Scale factor determines the first value for being used for the first bit；And in response to determining the associated function of diaphone phase modulation with the second collection The sum of rate greater than the associated power of diaphone phase modulation with the first collection sum multiplied by scheduled judgement scale factor, determine for the The second value of one bit.

Example 53 includes the theme of example 52, and optionally, operation further comprises: in response to determining and then collecting The sum of the associated power of diaphone phase modulation equal to first collection the associated power of diaphone phase modulation and, determine for then ratio The first special value；In response to determining the sum of power associated with the tone then collected equal to associated with the tone of the second collection The sum of power determines the second value of subsequent bit.

Embodiment 54 includes the theme of embodiment 52, and optionally, wherein predetermined determine the factor between 1 and 5.

Example 55 includes the exemplary theme of any of example 48 to 54, and optionally, wherein UL NDP is by 9 RU groups At each of 9 RU are made of 26 tones, and 26 tones of every collection are divided into 4 set of tones, each tone sets 6 tones.

Example 56 includes the exemplary theme of any of example 48 to 54, and optionally, wherein trigger frame include about The information of the coding of at least two bits at least two tone sets.

Example 57 includes the theme of example 56, and optionally, wherein information is based at least one of the following: encoding ratio Special multiple tone sets；Multiple tone sets of uncoded first bit, multiple tone sets of the one or more subsequent bits of coding, with And each bit value and with the associated corresponding power of the tone sets of each corresponding tone and between relationship.

Example 58 includes the method executed at wireless telecom equipment, which includes memory and be coupled to The processing circuit of memory, this method comprises: by reading data and write-in memory；Cause downlink (DL) multi-user (MU) Transmission of multiple-input and multiple-output (MIMO) trigger frame to multiple radio stations (STA)；Uplink is decoded from least some of multiple STA Link (UL) MU-MIMO frame, the UL MU-MIMO frame include correspondence uplink (UL) Empty packet from corresponding STA (NDP), the correspondence UL NDP at least two tone sets of each UL NDP encodes at least two bits together；By decoding extremely At least first in the few two tone sets value for collecting to determine the first bit of at least two bits；By decoding at least first The subsequent set of at least two tone sets after collection determines the subsequent bits of at least two bit after the first bit Value, the value of subsequent bit is based on the value of the first bit；And value based on the first bit in each UL NDP and with The value of bit afterwards, so that being communicated at least some of multiple STA.

Example 59 includes the theme of example 58, and optionally, and the wherein at least first collection is by least two tone sets First collection and the second collection composition.

Example 60 includes the theme of example 58, and optionally, wherein the first bit is the first of at least two tone sets The combination interior coding of two rows of collection and P matrix, decoding includes that every a line in two rows to P matrix executes despreading.

Example 61 includes the theme of example 59, and optionally, wherein at least two tone sets are made of three tone sets, Three tone sets encode three bits.

Example 62 includes the theme of example 59, and optionally, further comprises: corresponding with the first collection in response to determining The sum of the associated power of tone greater than with second collection the associated power of diaphone phase modulation sum multiplied by scheduled judgement ratio The factor determines the first value for being used for the first bit；And in response to determining and the associated power of diaphone phase modulation of the second collection With the sum greater than the associated power of diaphone phase modulation with the first collection multiplied by scheduled judgement scale factor, determine for the first ratio Special second value.

Example 63 includes the theme of example 62, and optionally, further comprises: corresponding with then collecting in response to determination The sum of the associated power of tone equal to the diaphone phase modulation associated power with the first collection and, determine and be used for subsequent bit First value；And the sum in response to determining power associated with the tone then collected is equal to associated with the tone of the second collection The sum of power determines the second value for being used for subsequent bit.

Embodiment 64 includes the theme of embodiment 59, and optionally, wherein predetermined determine the factor between 1 and 5.

Example 65 includes the exemplary method of any of example 58 to 64, and optionally, wherein UL NDP is by 9 RU groups At each of 9 RU are made of 26 tones, and every group of 26 tones are divided into 4 tone sets, each tone sets 6 A tone.

Example 66 includes the exemplary method of any of example 58 to 64, and optionally, wherein trigger frame include about The information of the coding of at least two bits at least two tone sets.

Example 67 includes the theme of example 66, and optionally, wherein information is based at least one of the following: encoding ratio Special multiple tone sets；Multiple tone sets of uncoded first bit, multiple tone sets of the one or more subsequent bits of coding, with And each bit value and with the associated each power of the tone of each corresponding tone sets and between relationship.

Example 68 includes wireless telecom equipment, which includes memory and the processing electricity for being coupled to memory Road, the equipment include: for by reading data and write-in memory component；For causing downlink (DL) multi-user (MU) Multiple-input and multiple-output (MIMO) trigger frame to multiple radio stations (STA) transmission component；For from least one in multiple STA The component of a little decoding uplink (UL) MU-MIMO frames, the UL MU-MIMO frame include the correspondence uplink from corresponding STA (UL) each UL NDP of Empty packet (NDP), each UL NDP encode at least two at least two tone sets together Bit；For determining the value of the first bit of at least two bits by at least first collection at least two tone sets of decoding Component；For being collected by the subsequent of at least two tone sets after at least first collection of decoding come after determining the first bit The component of the value of the subsequent bit of at least two bits, the value of subsequent bit is based on the value of the first bit；Described in being used to be based on The value of the first bit in each ULNDP and the value of subsequent bit, so that the structure communicated at least some of multiple STA Part.

The theme of example 69 including example 68, and optionally, the wherein at least first collection is by the of at least two tone sets One collection and the second collection composition.

Example 70 includes the theme of example 68, and optionally, wherein the first bit is the first of at least two tone sets The combination interior coding of two rows of collection and P matrix, decoding includes that every a line in two rows to P matrix executes despreading.

Claims (25)

1. a kind of wireless telecom equipment, which includes memory, and is coupled to the processing electricity of the memory Road, the processing circuit are used for:

From the memory read data and write data into the memory；

Uplink (UL) Empty packet (NDP) is encoded at least two tone sets, at least two tone sets are together Encode at least two bits, in which:

First bit of at least two bit will encode in at least first collection of at least two tone sets；And

The subsequent bit of at least two bit after first bit will encode:

In the subsequent set of at least two tone sets after at least first collection；And

So that value of the value of the subsequent bit based on the tone for encoding first bit；And

Cause the transmission of the UL NDP to access point (AP).

2. equipment according to claim 1, wherein first collection of at least first collection by least two tone sets With the second collection composition.

3. equipment according to claim 1, wherein first bit will be described the of at least two tone sets The combination interior coding of two rows of one collection and P matrix.

4. equipment according to claim 2, wherein at least two tone sets are made of three tone sets, described three Tone sets encode three bits.

5. equipment according to claim 2, wherein the processing circuit is used to set for first collection and second collection Pitch value is set, so that:

In order to encode the first value for first bit, with it is described first collection the associated power of diaphone phase modulation and it is big In the sum of associated power of diaphone phase modulation collected with described second multiplied by scheduled judgement scale factor；And

In order to encode the second value for first bit, with it is described second collection the associated power of diaphone phase modulation and it is big In with it is described first collection the associated power of diaphone phase modulation sum multiplied by scheduled judgement scale factor.

6. equipment according to claim 5 makes wherein the processing circuit is used to that pitch value to be arranged for the subsequent collection :

In order to encode the first value for the subsequent bit, waited with the sum of the associated power of diaphone phase modulation then collected In with it is described first collection the associated power of diaphone phase modulation and；And

In order to encode the second value for the subsequent bit, power associated with the tone then collected and be equal to The sum of the associated power of tone of second collection.

7. equipment according to claim 5, wherein the scheduled judgement scale factor is between 1 and 5.

8. equipment according to claim 1, wherein the UL NDP is made of 9 RU, each of described 9 RU by 26 tone compositions, and 26 tones of every collection are divided into 4 tone sets, 6 tones of each tone sets.

9. equipment according to claim 1, the equipment processing circuit described further is further used for:

Trigger frame is decoded from described access point, the trigger frame includes about described at least two tone sets at least two The information of the coding of a bit；And the UL NDP is encoded based on the decoding of the trigger frame.

10. equipment according to claim 9, wherein the information is based at least one of the following: encoding the bit Multiple tone sets；Encode multiple tone sets of first bit, multiple tone sets of the one or more subsequent bits of coding, And each bit value and with the associated corresponding power of tone of each corresponding tone sets and between pass System.

11. equipment according to claim 1, the equipment further comprises the radio collection for being coupled to the processing circuit At circuit, and it is coupled to the front-end module of the radio IC.

12. equipment according to claim 11, the equipment further comprises the multiple days for being coupled to the front-end module Line.

13. the method that one kind executes on a wireless communication device, the wireless telecom equipment includes memory and is coupled to described The processing circuit of memory, which comprises

It reads and writes data in the memory；

Uplink (UL) Empty packet (NDP) is encoded at least two tone sets, at least two tone sets are together Encode at least two bits, in which:

First bit of at least two bit will encode in at least first collection of at least two tone sets；And

The subsequent bit of at least two bit after first bit will encode:

In the subsequent collection of at least two tone sets after at least first collection；And

So that value of the value of the subsequent bit based on the tone for encoding first bit；And

Cause the transmission of the UL NDP to access point (AP).

14. according to the method for claim 13, wherein at least first collection is by the first of at least two tone sets Collection and the second collection composition.

15. according to the method for claim 13, wherein first bit will be described at least two tone sets The combination interior coding of two rows of the first collection and P matrix.

16. according to the method for claim 14, wherein at least two tone sets are made of three tone sets, described three A tone sets encode three bits.

17. according to the method for claim 14, the method further includes for sound to be arranged for the first collection and the second collection Tone pitch, so that:

In order to encode the first value for first bit, with it is described first collection the associated power of diaphone phase modulation and it is big In with it is described second collection the associated power of diaphone phase modulation sum multiplied by scheduled judgement scale factor；And

In order to encode the second value for first bit, with it is described second collection the associated power of diaphone phase modulation and it is big In with it is described first collection the associated power of diaphone phase modulation sum multiplied by scheduled decision zoom factor.

18. according to the method for claim 17, the method further includes being used to that pitch value to be arranged for the subsequent collection, So that:

In order to encode the first value of the subsequent bit, with the associated power of diaphone phase modulation then collected and be equal to The sum of the associated power of diaphone phase modulation of first collection；And

In order to encode the second value for the subsequent bit, power associated with the tone then collected and be equal to The sum of the associated power of tone of second collection.

19. according to the method for claim 13, wherein the UL NDP is made of 9 RU, each of described 9 RU It is made of 26 tones, and 26 tones of every collection are divided into 4 tone sets, 6 tones of each tone sets.

20. the method according to claim 11, the method further includes: trigger frame, institute are decoded from described access point Stating trigger frame includes the information about the coding of at least two bit at least two tone sets.

21. according to the method for claim 20, wherein the information is based at least one of the following: encoding the bit Multiple tone sets；Encode multiple tone sets of first bit, multiple tone sets of the one or more subsequent bits of coding, And the value of the bit and the associated corresponding power of tone of each tone sets in the corresponding tone sets and between Relationship.

22. a kind of wireless telecom equipment, the wireless telecom equipment includes memory and the processing electricity for being coupled to the memory Road, the equipment include:

For by reading data and being written the component of the memory；

For at least two tone sets encode uplink (UL) Empty packet (NDP) component, described at least two Tone sets encode at least two bits together, in which:

First bit of at least two bit will encode in at least first collection of at least two tone sets；And

The subsequent bit of at least two bit after first bit will encode:

In the subsequent collection of at least two tone sets after at least first collection；And

So that value of the value of the subsequent bits based on the tone for encoding first bit；And

For causing the UL NDP to the device of the transmission of access point (AP).

23. equipment according to claim 22, wherein at least first collection is by the first of at least two tone sets Collection and the second collection composition.

24. equipment according to claim 22, wherein described first will be in the first collection of at least two tone sets With the combination interior coding of two rows of P matrix.

25. machine readable memory includes machine readable instructions, the machine readable instructions when being executed for realizing method or Realize the equipment as described in aforementioned any claim.