CN103957083B - A kind of method and device for improving signaling frame transmission robustness - Google Patents

A kind of method and device for improving signaling frame transmission robustness Download PDF

Info

Publication number
CN103957083B
CN103957083B CN201410210135.0A CN201410210135A CN103957083B CN 103957083 B CN103957083 B CN 103957083B CN 201410210135 A CN201410210135 A CN 201410210135A CN 103957083 B CN103957083 B CN 103957083B
Authority
CN
China
Prior art keywords
signaling frame
sequence
filling
formula
error correction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201410210135.0A
Other languages
Chinese (zh)
Other versions
CN103957083A (en
Inventor
何世文
姚雄生
王海明
黄永明
洪伟
张军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing etaco Communication Technology Co.,Ltd.
Original Assignee
In Jiangsu Emerging Micro-Communication Ceases Science And Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by In Jiangsu Emerging Micro-Communication Ceases Science And Technology Ltd filed Critical In Jiangsu Emerging Micro-Communication Ceases Science And Technology Ltd
Priority to CN201410210135.0A priority Critical patent/CN103957083B/en
Publication of CN103957083A publication Critical patent/CN103957083A/en
Application granted granted Critical
Publication of CN103957083B publication Critical patent/CN103957083B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Radio Transmission System (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

The invention discloses a kind of method and device for improving signaling frame transmission robustness, method is：The signaling frame after scrambling is repeated before forward error correction coding, or repeat plus negate, or changes the position of wherein filling 0 after repeating, the position of wherein filling 0 can also be repeated plus change after negating, so as to generate new signaling frame.Device includes：Processing system, for repeating the signaling frame after scrambling before forward error correction coding, or repeat plus negate, or change the position of wherein filling 0 after repeating, the position of wherein filling 0 can also be repeated plus changed after negating, new signaling frame is generated, is transferred to the coding module of transmitter；Receiver receives signaling frame and first to decode, and then adds the method negated according to the repetition or repetition that are used when sending and fills 0 position, recovers the signaling frame b of L.The present invention using short bit signaling frame be mapped to long bit forward error correction coding input tape come diversity gain, raising signaling frame transmit reliability.

Description

A kind of method and device for improving signaling frame transmission robustness
Technical field
The present invention relates to the signaling frame transmission of millimeter wave ultrahigh speed wireless communication, is specifically that a kind of signaling frame that improves transmits Shandong The method and device of rod, belongs to wireless communication system technologies field.
Background technology
Wireless communication spectrum resource is increasingly rare and the demand of very high-speed data transfer speed, millimeter wave frequency band ultrahigh speed without Line communication technology increasingly attracts attention, and becomes one of technology most potential in future wireless system technology.
45GHz frequency ranges multiple-input and multiple-output (Multiple Input Multiple Output, MIMO) wireless communication skill Art belongs to millimetre-wave attenuator technology, is applied towards ultrahigh speed wireless access etc., can realize the ultrahigh speed of equipment room 10Gbps without Line transmits.Compared with low-frequency range, its feature includes millimeter wave：First, available spectral range is wide, channel capacity is big；It is second, easy Realize narrow beam and the antenna of high-gain, thus high resolution, good in anti-interference performance.
Being operated in the signaling frame of 2.4GHz or 5.8GHz frequency ranges IEEE802.11n includes HT-SIG1 and HT-SIG2, HT- The length of SIG1 and HT-SIG2 is all 24 bits, and the forward error correction BCC coding inputs of the system are also 24 bits, and signaling frame is Map directly to the input terminal of BCC (Binary Convolutional Code, BCC) codings.
The signaling frame for being operated in 5.8GHz frequency range IEEE802.11ac single users (Single User, SU) mimo system is VHT-SIG-A1 and VHT-SIG-A2, their length are all 24 bits, and the forward error correction BCC coding inputs of the system are also 24 Bit, signaling frame are the input terminals for mapping directly to BCC codings.
Being operated in the signaling frame of 5.8GHz frequency ranges IEEE802.11ac multi-user (Multi-user, MU) mimo system includes VHT-SIG-A and VHT-SIG-B, its VHT-SIG-A is identical with Single User MIMO system, VHT-SIG-B length under 20MHz bandwidth For 26 bits, VHT-SIG-B length is 27 bits under 40MHz bandwidth, 80MHz, 160MHz and 80+80MHz VHT-SIG-B long Spend for 29 bits.They are all the input terminals for mapping directly to BCC codings.
One OFDM of above-mentioned signaling frame occupancy (Orthogonal Frequency Division Multiplexing, OFDM symbol), the length of signaling frame and the input length of forward error correction coding are essentially the same, and signaling frame all maps directly to The input terminal of BCC codings, it is relatively poor without mapping code gain or diversity gain, reliability.
The frame head for the OFDM physical layers being operated in 60GHz frequency range IEEE802.11ad standards is by using single OFDM symbol encodes, its signaling message length is 64 bits, forward error correction LDPC (Low-density Parity-check Codes, LDPC) input of code is 672 bits.Sequence q is produced after these signaling frame bit sequence b scramblers, sequence q passes through embedding Enter 440 0 come obtain the sequence of 504 bits altogether for [q, 01×440],LDPC coding, then produce Raw three combined sequences go out the LDPC code word sequence of 672 bits, and this method cannot give full play to the code correction of corresponding code length Ability, performance is bad, the poor reliability of signaling frame transmission.
The length of the signaling frame A (SIG-A) of IEEE802.11aj (45GHz) Single User MIMO system is 72 bits, When SIG-A is sent, the input of the forward error correction coding LDPC of its transmitter is 336 bits.
The signaling frame of IEEE802.11aj (45GHz) multi-user MIMO system includes SIG-A and signaling frame B (SIG-B), SIG-A is as Single User MIMO system, the length of its SIG-B is 40 bits, when SIG-B is sent, before its transmitter Input to Error Correction of Coding LDPC is 336 bits.
The length of above-mentioned signaling frame is much smaller than the input bit digit of forward error correction coding, and signaling frame is mapped to forward error correction If coding is using the method being operated in 60GHz frequency range IEEE802.11ad standards, it is impossible to utilizes corresponding code length well Coding gain or diversity gain.
The content of the invention
Goal of the invention：For problems of the prior art and deficiency, the present invention is a kind of to improve signaling frame transmission robust Property method and device, for forward error correction coding input length at least 2 times of signaling message lengths when, preferably utilize short bit The signaling frame of position is mapped to the diversity gain that the forward error correction coding input tape of long bit comes, and improves the reliable of signaling frame transmission Property.
Technical solution：It is a kind of improve signaling frame transmission robustness method, first, before forward error correction coding to scrambling after Signaling frame repeated, or carry out repeat plus negate, or repeat after change wherein filling 0 position, can also repeat plus take Change the position of wherein filling 0 after anti-, so as to generate new signaling frame；Then, send and generate new signaling frame.
The above method is described in detail as follows：The length of the signaling frame of wireless communication system is L, forward error correction coding it is defeated It is N, N >=2L to enter digit,
INT () represents round numbers part (formula 1)
I.e. M isInteger part,
F=N-LM (formula 2)
(1) signaling frame bit bit sequence b,
B=[b1,b2,...,bL] (formula 3)
Wherein L is the length of signaling frame, scrambled according to consensus standard signaling frame, since the 8th bit.Scramble postorder It is as follows to arrange q：
Q=[q1,q2,...,qL] (formula 4)
(2) sequence D1It is the sequence that 0 acquisition N number of bit altogether is filled out after being repeated M times by sequence q：
D1=[X1,X2,...,Xi,...,XM,01×F] (formula 5)
Xi=q=[q1,q2,...,qL] 1≤i≤M (formula 6)
Wherein 01×FRepresent 1 × F 0；
(3) sequence c is to negate generation by sequence q：
C=[c1,c2,...,cL] (formula 7)
Wherein in formula 71≤i≤L (formula 8)
(4) sequence D2It is to be produced by the following formula：
D2=[X1,X2,...,Xi,...,XM,01×F] (formula 9)
1≤i≤M (formula 10)
(5) sequence D3It is by varying sequence D1The position of afterbody filling 0, between being distributed in sequence q by the 0 of filling,G=E+ (F-EM), the sequence of generation：
D3=[X1,01×E,X2,01×E,...,Xi,01×E,...,XM-1,01×E,XM,01×G] (formula 11)
Xi=q=[q1,q2,...,qL] 1≤i≤M (formula 12)
(6) sequence D4It is by varying sequence D2Afterbody fills out 0 position, and X is distributed in by the 0 of fillingiAnd Xi+1Between, produce Sequence D4For：
D4=[X1,01×E,X2,01×E,...,Xi,01×E,...,XM-1,01×E,XM,01×G] (formula 13)
1≤i≤M (formula 14)
The forward error correction coder list entries D produced by above-mentioned steps1、D2、D3Or D4Digits long be N, so that it may To directly input forward error correction coder.
The signaling frame includes the signaling frame A (SIG-A) of Single User MIMO wireless communication system.
The signaling frame includes the signaling frame A (SIG-A) and signaling frame B (SIG-B) of multiuser MIMO wireless communication system.
Described send includes by channel sending the signaling frame, wherein, the bandwidth of the channel be 540MHz or 1080MHz。
Described send includes sending the signaling frame by channel, wherein, the bandwidth of the channel is 540MHz, and its In, the quantity of the subcarrier is 179.
Include 8 pilot sub-carriers, 3 direct current subcarriers and 168 numbers for the quantity of the subcarrier of the signaling frame According to subcarrier.
Described send includes sending the signaling frame by channel, wherein, the bandwidth of the channel is 1080MHz, and Wherein, the quantity of the subcarrier is 355.
Include 16 pilot sub-carriers, 3 direct current subcarriers and 336 numbers for the quantity of the subcarrier of the signaling frame According to subcarrier.
A kind of device for improving signaling frame transmission robustness, including：
Processing system, for repeating the signaling frame after scrambling before forward error correction coding, or repeat plus take Instead, or after repeating change the position of wherein filling 0, the position of wherein filling 0 can also be repeated plus change after negating, so as to generate New signaling frame, is transferred to the coding module of transmitter；
Transmitter, for sending signaling frame to receiver；
Receiver, receiving signaling frame will first decode, and the output K of N number of bit is produced after decoding, then be adopted according to when sending Repetition or the method for repeating plus negating and the position for filling 0, it is extensive as follows according to cyclic redundancy check mechanism Appear again the signaling frame b of L：
(1) D is produced using the method for repetition when sending1, preceding L of the output K of N number of bit will be produced after decoding first Data input descrambler carry out descrambling and produce signaling frame b, verified according to check field, if verification is correct, produced Correct signaling frame b has been given birth to, the subsequent data of K has not been reprocessed；If verification is incorrect, by the data of the 2nd section L of K Input descrambler carries out descrambling and produces signaling frame b, is verified according to check field, if verification is correct, generates just True signaling frame b, does not reprocess the subsequent data of K；According to verification situation, the above process repeats M times；
(2) D is produced using the method for repeating plus negating when sending2, the output K of N number of bit will be produced after decoding first The input descrambler of the data of preceding L carry out descrambling and produce signaling frame b, verified according to check field, if verification is just Really, then correct signaling frame b is generated, the subsequent data of K is not reprocessed；If verification is incorrect, to the 2nd section L of K Data first negate, then input descrambler and carry out descrambling and produce signaling frame b, verified according to check field, if school Test correctly, then subsequent data is not reprocessed；According to verification situation, the above process repeats M times, when wherein M is odd number, M The data of section L directly input descrambler；When M is even number, descrambler is inputted after the data-conversion of M sections L；
(3) using change sequence D when sending1The location method of afterbody filling 0 produces D3, it recovers the process of signaling frame b It is similar with step (1), unlike, simply need to get rid of the 0 of filling, no longer specifically describe.
(4) using change sequence D when sending2The location method of afterbody filling 0 produces D4, it recovers the process of signaling frame b It is similar with step (2), unlike, simply need to get rid of the 0 of filling, no longer specifically describe.
Beneficial effect：Compared with prior art, it is provided by the invention it is a kind of improve signaling frame transmission robustness method and Device, by being repeated before forward error correction coding to the signaling frame after scrambling, or repeats plus negates, can also change filling The method of the raising signaling frame transmission robustness of 0 position, can be mapped to long bit using the signaling frame of short bit well The diversity gain that the forward error correction coding input tape of position comes, then according to the repetition used when sending or the method for repeating plus negating And the position of filling 0, with reference to cyclic redundancy check mechanism, the signaling frame b of L is recovered, side that can be than IEEE802.11ad Method preferably improves signaling frame transmission reliability, at the same can allow the transmission of signaling frame use than IEEE802.11n and The QPSK modulation of IEEE802.11ac complexity.
Brief description of the drawings
Fig. 1 is the schematic diagram of the cordless communication network of application of the embodiment of the present invention；
Fig. 2 is the exemplary transmitter block diagram of the SIG-A of IEEE802.11aj (45GHz) system OFDM physical layers；
Fig. 3 is the exemplary transmitting of the SIG-B of IEEE802.11aj (45GHz) multi-user MIMO system OFDM physical layers Machine frame figure；
Fig. 4 is the exemplary plot that IEEE802.11aj (45GHz) systems SIG-A is mapped to forward error correction coding LDPC inputs；
Fig. 5 is the exemplary plot that IEEE802.11aj (45GHz) systems SIG-B is mapped to forward error correction coding LDPC inputs；
Fig. 6 is the example arrangement form of SIG-A；
Fig. 7 is the example arrangement form of SIG-B.
Embodiment
With reference to specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention Rather than limit the scope of the invention, after the present invention has been read, various equivalences of the those skilled in the art to the present invention The modification of form falls within the application appended claims limited range.
The method for improving signaling frame transmission robustness, first, carries out the signaling frame after scrambling before forward error correction coding Repeat, or repeat plus negate, or change the position of wherein filling 0 after repeating, can also repeat plus change wherein after negating The position of filling 0, so as to generate new signaling frame；Then, send and generate new signaling frame.
The device of signaling frame transmission robustness is improved, including：
Processing system, for repeating the signaling frame after scrambling before forward error correction coding, or repeat plus take Instead, or after repeating change the position of wherein filling 0, the position of wherein filling 0 can also be repeated plus change after negating, so as to generate New signaling frame, is transferred to the coding module of transmitter；
Transmitter, for sending signaling frame to receiver；
Receiver, receiving signaling frame will first decode, and the output K of N number of bit is produced after decoding, then be adopted according to when sending Repetition repeats plus the method that negates and the position for filling 0, with reference to cyclic redundancy check mechanism, recovers the letter of L Make frame b.
Methods and apparatus of the present invention is preferably mapped to the forward error correction of long bit using the signaling frame of short bit The diversity gain that coding input is brought, improves the reliability of signaling frame transmission.Below in conjunction with the accompanying drawings, the embodiment of the present invention is carried out Detailed elaboration.
The technology of the present invention can be used for various system of broadband wireless communication, and the example of this communication system includes millimeter wave Ultrahigh speed wireless communication system etc..
The method of the present invention may be implemented in various wired or wireless devices, the wireless section that the method according to the invention is realized Point can include access point or access terminal.
Access point (Access Point, AP) can include, be implemented as or for base station transceiver, base station, transceiver Function, wireless router, transceiver, Basic Service Set (Basic Service Set, BSS), extended service set (Extended Service Set, ESS) or some other terms.
User terminal (User Terminal, UT) can include, be implemented as or for access terminal, subscriber station, use Family unit, movement station, user terminal, user apparatus, user equipment or some other terms.In some implementations, access Terminal can include possessing phone, mobile phone, computer of wireless connection capability etc..
As shown in Figure 1, the multiple-access MIMO system with access point and user terminal.Any given at the time of, access point It can communicate on the downlink and uplink with one or more user terminals.Downlink be from access point to The communication link of family terminal, uplink are the communication links from user terminal to access point.User terminal can also with it is another User terminal communicates point-to-pointly.System access controller is connected to access point, and is provided to access point and coordinate and control.
System can use multiple transmitting antennas and multiple reception antennas for number on the downlink and uplink According to transmission.User terminal can be furnished with one or more antennas.
Mimo system can be time division duplex (TDD) system or frequency division duplex (FDD) system.For TDD system, downlink chain Road and uplink share identical frequency band.For FDD system, downlink and uplink use different frequency bands.MIMO System can also be transmitted using single carrier or multicarrier.
As shown in Fig. 2, in the communication system SIG-A of OFDM physical layers transmitter block diagram, it includes following module：
1) PHY padding physical layers zero padding
2) Scrambler scramblers
3) FEC (LDPC) encoders forward error corrections (low density parity check code) encoder
4) Constellation mapper planispheres mapper
5) LDPC tone mapping low-density parities test code subcarrier maps
6) Replicate over multiple540MHz for1080MHz spectral band replications
7) Inverse discrete Fourier transform (IDFT) inverse discrete Fourier transform
8) Cyclic shift diversity (CSD) per STS insertion insertions are per empty time stream cyclic shift point Collection
9) Guard interval (GI) insertion and window are inserted into protection interval and adding window
10) Analog and RF simulations and radio-frequency module
As shown in figure 3, in multi-user MIMO system the SIG-B of OFDM physical layers transmitter block diagram, it includes such as lower die Block：
1) PHY padding physical layers zero padding
2) Scrambler scramblers
3) Replicate over multiple540MHz for1080MHz spectral band replications
4) FEC (LDPC) encoders forward error corrections (low density parity check code) encoder
5) Constellation mapper planispheres mapper
6) LDPC tone mapping low-density parities test code subcarrier maps
7) Multiple the first column of P multiply P matrix first rows
8) Cyclic shift diversity (CSD) per STS insertion insertions are per empty time stream cyclic shift point Collection
9) Spatial mapping space reflections
10) Inverse discrete Fourier transform (IDFT) inverse discrete Fourier transform
11) Guard interval (GI) insertion and window are inserted into protection interval and adding window
12) Analog and RF simulations and radio-frequency module
Above-mentioned SIG-A transmitters are mapped to forward error correction LDPC coding inputs after scrambler module can use such as lower section Method, its mapping process can be shown according to Fig. 4.
The SIG-A of the OFDM physical layers of IEEE802.11aj (45GHz) Single User MIMO wireless communication system is by making Encoded with 2 OFDM symbols, the bit bit sequence b=[b of SIG-A1,b2,...,bL], length is 72 bits, L=72, its The input of the forward error correction coding LDPC of transmitter is 336 bits, according to above formula, N=336, M=4, F=48.Through Sequence q=[the q produced are crossed after scrambling module1,q2,...,q72], to q sequences negate the sequence c=[c of generation1, c2,...,c72], ciIt is to qiNegate, such as qi=0, then ci=1；qi=1, then ci=0.So reflected by what is repeated plus negate Shooting method produce forward error correction coding list entries D be:
D=[q, c, q, c, 01×48] (formula 15)
SIG-A is first decoded after receiver receives signaling frame, and the output K of 336 bits is produced after decoding, first to decoding The input descrambler of the data of first 72 of the output K of 336 bits of generation carries out descrambling and produces signaling frame b afterwards, according to school Test field to be verified, if verification is correct, generates correct signaling frame b, the subsequent data of K is not reprocessed；If Verify incorrect, then the data of the 2nd section 72 of K first negated, then input descrambler and carry out descrambling and produce signaling frame b, Verified according to check field, if verification is correct, generates correct signaling frame b, the subsequent data of K is no longer located Reason；According to verification situation, the above process repeats 4 times.
The other repetitions of SIG-A and change zero filling position mapping method and how to receive and recover correct signaling frame Method it is similar with the above process, no longer specific example describe.
IEEE802.11aj (45GHz) multi-user MIMO system, SIG-A transmitters be mapped to after scrambler module before to The method of error correction LDPC coding inputs and how to receive the method for recovering correct signaling frame and Single User MIMO system one Sample, no longer specifically describes.
As shown in figure 5, the SIG-B transmitters of IEEE802.11aj (45GHz) multi-user MIMO system are in scrambler module The method of forward error correction LDPC coding inputs is mapped to afterwards.
The SIG-B of the OFDM physical layers of multi-user MIMO system is encoded by using two OFDM symbols, SIG-B's Bit b=[b1,b2,...,b40], length is 40 bits, L=40, the input of the forward error correction coding LDPC of its transmitter For 336 bits, according to above formula, N=336, M=8, F=16, E=2, produce after the scrambled device modules of G=2 Sequence is q=[q1,q2,...,q40], repeat to change the forward error correction coding list entries that the mapping method for the position for filling out 0 produces D is：
D=[q, 01×2,q,01×2,q,01×2,q,01×2,q,01×2,q,01×2,q,01×2,q,01×2] (formula 16)
Receiver first decodes after receiving signaling frame SIG-B, and the output K of 336 bits is produced after decoding, first to decoding The input descrambler of the data of first 40 of the output K of 336 bits of generation carries out descrambling and produces signaling frame b afterwards, according to school Test field to be verified, if verification is correct, generates correct signaling frame b, the subsequent data of K is not reprocessed；If Verify incorrect, then the data of the 2nd section 40 are taken behind the 0 of 40 data of removal first segment to K and 2 fillings, by the data Input descrambler carries out descrambling and produces signaling frame b, is verified according to check field, if verification is correct, generates just True signaling frame b, does not reprocess the subsequent data of K；According to verification situation, the above process repeats 8 times.
The other repetitions of SIG-B, which add, to be negated, and can also be changed the mapping method for the position for filling out 0 and how to be received and recovers just The method of true signaling frame is similar with the above process, and no longer specific example describes.
As shown in fig. 6, the example arrangement of the SIG-A of the communication system.SIG-A can include scrambler initialization state 7 bits, provide descrambling to receiver and use, also indicate 1 bit comprising bandwidth, instruction system air interface transmission bandwidth is 540MHz or 1080MHz, further includes the check field CRC of 16 bits, and other fields do not specifically describe herein, SIG- A length is 72 bits.
Fig. 7 shows the example arrangement of the SIG-B of the communication system.SIG-B can include scrambler initialization state 7 Bit, provides descrambling to receiver and uses；18 bits of length field, indicate the byte number of PSDU, further include 16 ratios The check field HCS of special position, other fields do not specifically describe herein, and the length of SIG-B is 40 bits.
Transmitter is configured to send the signaling frame by channel, wherein, the bandwidth of the channel for 540MHz or 1080MHz.When the bandwidth of the channel is 540MHz, the quantity of the subcarrier be 179, including 8 pilot sub-carriers, 3 Direct current subcarrier and 168 data subcarriers.
Transmitter is configured to send the signaling frame by channel, wherein, the bandwidth of the channel can also be 1080MHz, and wherein, the quantity of the subcarrier is 355, including 16 pilot sub-carriers, 3 direct current subcarriers and 336 A data subcarrier.
The signaling frame of the short bit of single carrier physical layer of IEEE802.11aj (45GHz) system is mapped to long bit The method of forward error correction coding is similar with OFDM physical layers, and no longer specific example describes here.

Claims (3)

  1. A kind of 1. method for improving signaling frame transmission robustness, it is characterised in that：First, after before forward error correction coding to scrambling Signaling frame repeated, or carry out repeat plus negate, or repeat after change wherein filling 0 position, can also repeat plus take Change the position of wherein filling 0 after anti-, so as to generate new signaling frame；Then, it is transferred to the coding module of transmitter；
    During new signaling frame is generated, following parameter is calculated first：If the digit length of the signaling frame of wireless communication system To spend for L, the input digit of forward error correction coding is N, N >=2L,
    ThenINT () represents round numbers part formula 1
    I.e. M isInteger part,
    F=N-LM formula 2
    If signaling frame bit bit sequence b,
    B=[b1,b2,...,bL] formula 3
    Scrambled according to consensus standard signaling frame, since the 8th bit, sequence q is as follows after scrambling：
    Q=[q1,q2,...,qL] formula 4
    The detailed process repeated before forward error correction coding to the signaling frame after scrambling is：
    Sequence D1It is the sequence that 0 acquisition N number of bit altogether is filled out after being repeated M times by sequence q after scrambling：
    D1=[X1,X2,...,Xi,...,XM,01×F] formula 5
    Xi=q=[q1,q2,...,qL] 1≤i≤M formula 6
    Wherein 01×FRepresent 1 × F 0；
    The signaling frame after scrambling repeat before forward error correction coding plus the detailed process that negates is：
    Sequence c is to negate generation by sequence q：
    C=[c1,c2,...,cL] formula 7
    Wherein in formula 7：
    Sequence D2It is to be produced by the following formula：
    D2=[X1,X2,...,Xi,...,XM,01×F] formula 9
    Change the detailed process of the wherein position of filling 0 after being repeated before forward error correction coding to the signaling frame after scrambling For：
    Sequence D1It is the sequence that 0 acquisition N number of bit altogether is filled out after being repeated M times by sequence q after scrambling：
    D1=[X1,X2,...,Xi,...,XM,01×F] formula 5
    Xi=q=[q1,q2,...,qL] 1≤i≤M formula 6
    Wherein 01×FRepresent 1 × F 0；
    Sequence D3It is by varying sequence D1The position of afterbody filling 0, between being distributed in sequence q by the 0 of filling,G =E+ (F-EM), the sequence of generation：
    D3=[X1,01×E,X2,01×E,...,Xi,01×E,...,XM-1,01×E,XM,01×G] formula 11
    Xi=q=[q1,q2,...,qL] 1≤i≤M formula 12；
    The signaling frame after scrambling is carried out before forward error correction coding to change the specific of the position for wherein filling 0 after repeating plus negating Process is：
    Sequence D2It is to be produced by the following formula：
    D2=[X1,X2,...,Xi,...,XM,01×F] formula 9
    Sequence D4It is by varying sequence D2Afterbody fills out 0 position, and X is distributed in by the 0 of fillingiAnd Xi+1Between, the sequence D of generation4 For：
    D4=[X1,01×E,X2,01×E,...,Xi,01×E,...,XM-1,01×E,XM,01×G] formula 13
    G=E+ (F-EM).
  2. 2. the method for signaling frame transmission robustness is improved as claimed in claim 1, it is characterised in that：The signaling frame includes single The signaling frame SIG-A of user's mimo wireless communication system, the signaling frame SIG-A and signaling frame of multiuser MIMO wireless communication system SIG-B；Signaling frame is sent by channel, wherein, the bandwidth of the channel is 540MHz or 1080MHz；When the bandwidth of channel is During 540MHz, the quantity of signaling frame subcarrier is 179, including 8 pilot sub-carriers, 3 direct current subcarriers and 168 data Carrier wave；When the bandwidth of channel is 1080MHz, the quantity of signaling frame subcarrier be 355, including 16 pilot sub-carriers, 3 it is straight Flow subcarrier and 336 data subcarriers.
  3. 3. a kind of device for the raising signaling frame transmission robustness method being used for as described in claim 1-2 any one, it is special Sign is, including：
    Processing system, for repeating the signaling frame after scrambling before forward error correction coding, or repeat plus negate, or Change the position of wherein filling 0 after repeating, the position of wherein filling 0 can also be repeated and change after negating, so as to generate new Signaling frame, is transferred to the coding module of transmitter；
    Transmitter, for sending signaling frame to receiver；
    Receiver, receiving signaling frame will first decode, the output K of N number of bit is produced after decoding, then be used according to when sending Repeat or repeat plus the method that negates and the position for filling 0, with reference to cyclic redundancy check mechanism, recover the signaling frame of L b；
    Receiver is according to the repetition used when sending or the method for repeating plus negating and the position for filling 0, according to cyclic redundancy Verification scheme recovers the signaling frame b of L as follows：
    (1) D is produced using the method for repetition when sending1, the number of preceding L of the output K of N number of bit will be produced after decoding first Descrambling is carried out according to input descrambler and produces signaling frame b, is verified according to check field, if verification is correct, generated Correct signaling frame b, does not reprocess the subsequent data of K；If verification is incorrect, the data of the 2nd section L of K are inputted Descrambler carries out descrambling and produces signaling frame b, is verified according to check field, if verification is correct, generates correctly Signaling frame b, does not reprocess the subsequent data of K；According to verification situation, above-mentioned generation D1Process repeat M times；
    (2) D is produced using the method for repeating plus negating when sending2, the preceding L of the output K of N number of bit will be produced after decoding first The data input descrambler of position carries out descrambling and produces signaling frame b, is verified according to check field, if verification is correct, Correct signaling frame b is generated, the subsequent data of K is not reprocessed；If verification is incorrect, to the number of the 2nd section L of K According to first negating, then input descrambler carries out descrambling and produces signaling frame b, is verified according to check field, if verification is just Really, then subsequent data is not reprocessed；According to verification situation, above-mentioned generation D2Process repeat M times, when wherein M is odd number, The data of M sections L directly input descrambler；When M is even number, descrambler is inputted after the data-conversion of M sections L；
    (3) using change sequence D when sending1The location method of afterbody filling 0 produces D3, it recovers the process of signaling frame b and step Suddenly (1) is similar, unlike, simply need to get rid of the 0 of filling；
    (4) using change sequence D when sending2The location method of afterbody filling 0 produces D4, it recovers the process of signaling frame b and step Suddenly (2) are similar, unlike, simply need to get rid of the 0 of filling.
CN201410210135.0A 2014-05-16 2014-05-16 A kind of method and device for improving signaling frame transmission robustness Active CN103957083B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410210135.0A CN103957083B (en) 2014-05-16 2014-05-16 A kind of method and device for improving signaling frame transmission robustness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410210135.0A CN103957083B (en) 2014-05-16 2014-05-16 A kind of method and device for improving signaling frame transmission robustness

Publications (2)

Publication Number Publication Date
CN103957083A CN103957083A (en) 2014-07-30
CN103957083B true CN103957083B (en) 2018-05-15

Family

ID=51334317

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410210135.0A Active CN103957083B (en) 2014-05-16 2014-05-16 A kind of method and device for improving signaling frame transmission robustness

Country Status (1)

Country Link
CN (1) CN103957083B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104301278B (en) * 2014-09-28 2017-11-28 江苏中兴微通信息科技有限公司 A kind of zero filling method and device of mixed carrier wlan system
TWI763636B (en) * 2015-10-12 2022-05-11 美商阿特拉斯全球技術有限責任公司 Protection methods for wireless transmissions
US9832058B2 (en) * 2015-11-03 2017-11-28 Newracom, Inc. Apparatus and method for scrambling control field information for wireless communications
CN108141304B (en) * 2015-11-04 2019-09-17 松下知识产权经营株式会社 The sending device and sending method of control signaling in wireless communication system
CN108616477B (en) * 2018-02-08 2021-01-01 南京中感微电子有限公司 Wireless communication method, device and system
CN109165001B (en) 2018-08-24 2020-07-10 京东方科技集团股份有限公司 Encoding method, device and display device
CN109525372A (en) * 2018-12-24 2019-03-26 深圳市华星光电技术有限公司 Terminal data transmission method, apparatus and storage medium
CN111599300A (en) * 2020-06-19 2020-08-28 京东方科技集团股份有限公司 Signal processing method, signal transmitting and receiving device, and display device
CN116208667A (en) * 2023-01-18 2023-06-02 中国电子科技集团公司第二十八研究所 Variable-length high-compression bit message coding and decoding method
CN116847453B (en) * 2023-09-04 2023-11-14 四川轻化工大学 Satellite data transmission and satellite Internet of things access time management method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101127583A (en) * 2006-09-13 2008-02-20 美商威睿电通公司 System and method for implementing preamble channel in wireless communication system
CN101330346A (en) * 2007-06-22 2008-12-24 华为技术有限公司 Method and apparatus for processing control signaling information
CN102202030A (en) * 2011-03-25 2011-09-28 北京智网能达科技有限公司 Data transmission system and method suitable for wired and wireless fusion of AMI (Advanced Metering Infrastructure)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4513725B2 (en) * 2005-11-09 2010-07-28 ソニー株式会社 Packet transmission apparatus, communication system, and program

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101127583A (en) * 2006-09-13 2008-02-20 美商威睿电通公司 System and method for implementing preamble channel in wireless communication system
CN101330346A (en) * 2007-06-22 2008-12-24 华为技术有限公司 Method and apparatus for processing control signaling information
CN102202030A (en) * 2011-03-25 2011-09-28 北京智网能达科技有限公司 Data transmission system and method suitable for wired and wireless fusion of AMI (Advanced Metering Infrastructure)

Also Published As

Publication number Publication date
CN103957083A (en) 2014-07-30

Similar Documents

Publication Publication Date Title
CN103957083B (en) A kind of method and device for improving signaling frame transmission robustness
US11309905B2 (en) Communication of user specific control information in a wireless network
US10587375B2 (en) Downlink signaling in a high efficiency wireless local area network (WLAN)
CN104115438B (en) Information bit padding schemes for WLAN
CN104094571B (en) Pilot frequency sequence for remote WLAN designs
CN1871807B (en) Device and methods for implementing high-throughput wireless communication system
US9166741B2 (en) OFDM transmitter with variable code block interleaver and method for OFDM communications with variable code block sizes
EP2269356B1 (en) Improved Dual Carrier Modulation Precoding
US9729369B1 (en) Methods and apparatus for transmission of data at different modulation and/or coding rates
CN101321034A (en) System and method for encoding and decoding in wireless communication systems
CN103444114A (en) Control mode phy for wlan
CN108370285A (en) Signal field coding in high efficiency WLAN (WLAN) data cell
CN111327399B (en) Method and system for sending and receiving control information of communication physical frame
CN100566324C (en) The WLAN communication of multiple-input and multiple-output
CN102932091A (en) Transmission method and device for wireless local area network signaling
CN103986684A (en) Frame scrambling and descrambling method in MIMO wireless communication system and communication device thereof
US20140079150A1 (en) Data encoding methods and apparatus
CN101127583B (en) System and method for implementing preamble channel in wireless communication system
CN111224742B (en) Method and device for sending information
CN109728840B (en) Data transmission method and device
CN102546085A (en) Method for adding Bose-Chaudhur-Hocquenghem (BCH) error-correcting code to detection frame of high performance network over coax (HINOC) system
WO2024019659A1 (en) Communication apparatus and communication method for dual stream dual carrier modulation
CN104168248B (en) Interleaving and deinterleaving method and device based on rotation of data cell blocks
CN111065112A (en) Method, transmitter and receiver for bit level management
CN108989002A (en) A kind of method and apparatus in the user equipment for being used for narrow band communication, base station

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 211100 9 Jiangning Road, Jiangning economic and Technological Development Zone, Nanjing, China

Patentee after: NANJING ZEPUTUO INFORMATION TECHNOLOGY Co.,Ltd.

Address before: 211100 No.9, mozhou East Road, Jiangning Economic Development Zone, Nanjing, Jiangsu Province

Patentee before: ZTE Wavetone Science and Technology Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210625

Address after: 211100 8th floor, building B4, wireless Valley, No.9, mozhou East Road, Jiangning District, Nanjing City, Jiangsu Province

Patentee after: Nanjing etaco Communication Technology Co.,Ltd.

Address before: 211100 9 Jiangning Road, Jiangning economic and Technological Development Zone, Nanjing, China

Patentee before: NANJING ZEPUTUO INFORMATION TECHNOLOGY Co.,Ltd.