WO2019228349A1 - 部分伪随机化处理方法、相应装置、设备及存储介质 - Google Patents

部分伪随机化处理方法、相应装置、设备及存储介质 Download PDF

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Publication number
WO2019228349A1
WO2019228349A1 PCT/CN2019/088816 CN2019088816W WO2019228349A1 WO 2019228349 A1 WO2019228349 A1 WO 2019228349A1 CN 2019088816 W CN2019088816 W CN 2019088816W WO 2019228349 A1 WO2019228349 A1 WO 2019228349A1
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bits
agreed
bit sequence
receiving side
bit
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PCT/CN2019/088816
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English (en)
French (fr)
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胡宇洲
袁志锋
李卫敏
戴建强
田力
唐红
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中兴通讯股份有限公司
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Priority to EP19811463.9A priority Critical patent/EP3806358A4/en
Priority to US17/059,098 priority patent/US11456819B2/en
Publication of WO2019228349A1 publication Critical patent/WO2019228349A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J11/00Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023Interference mitigation or co-ordination
    • H04J11/0026Interference mitigation or co-ordination of multi-user interference
    • H04J11/003Interference mitigation or co-ordination of multi-user interference at the transmitter
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/10Code generation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041Arrangements at the transmitter end
    • H04L1/0043Realisations of complexity reduction techniques, e.g. use of look-up tables
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0047Decoding adapted to other signal detection operation
    • H04L1/0048Decoding adapted to other signal detection operation in conjunction with detection of multiuser or interfering signals, e.g. iteration between CDMA or MIMO detector and FEC decoder
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0052Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0057Block codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0061Error detection codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041Arrangements at the transmitter end
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a partial pseudo-randomization processing method, a corresponding device, a device, and a storage medium.
  • Performing pseudo-randomization on the bit sequence to be transmitted can increase the randomness of the bit sequence. If different users use different pseudo-randomization processing for the bit sequence, the pseudo-randomization processing can also reduce the correlation between the bit sequences of different users and achieve the effect of randomization of interference between users, which will bring two benefits: 1 2. After randomization of interference between users, the detection performance of user data symbols will be more robust. 2. For non-orthogonal access scenarios, the receiver needs to decode the correct user data to improve the accuracy of its channel estimation (this technology can be called data-assisted channel estimation technology or data-pilot technology) so that The reconstructed signal is more accurate, and the residual error of interference cancellation is smaller. The bit pseudo-randomization between users can improve the accuracy of this channel estimation, which can further improve the performance of the entire interference cancellation receiver.
  • Inter-user interference randomization is particularly effective for scenarios with the same user data characteristics; for example, for applications such as electricity meters, they may report the power consumption of the past month on the same day of each month, then these different users The information that may be sent is "to date, the power consumption is xxx.” The source bits used to indicate this information will be very similar, and randomization of interference between users can play a good role in the receiver when distinguishing users. effect.
  • the transmitting side performs pseudo-randomization processing on the bit sequence to be transmitted, and the receiving side needs to perform pseudo-randomization processing on the corresponding bit sequence, which requires the receiving side to know the method of pseudo-random processing on the transmitting side.
  • Pseudo-randomization of a bit sequence that needs to be transmitted can be achieved in different ways.
  • One of the classic and most commonly used methods is to use a pseudo-random bit sequence to scramble the bit sequence that needs to be transmitted. Therefore, the pseudo-random bit sequence used can also be called a scrambling code sequence, which is usually generated by a pseudo-sequence generator.
  • the scrambling process is a process of performing an exclusive-OR operation on a bit sequence to be transmitted and a bit corresponding to the scrambling code sequence to generate a new bit sequence.
  • the transmitting side scrambles the bit sequence to be transmitted, and the receiving side needs to descramble the corresponding bit sequence. Similarly, the descrambling process requires the receiving side to know the scrambling code used by the transmitting side.
  • the receiving side knows the scrambling code used by the transmitting side before decoding, so it can easily complete the descrambling operation and then decode.
  • the existing scrambling code scheme is applied to the scheduling-free transmission, the descrambling of the receiving side (for example, the base station) before FEC decoding will have the following problems:
  • the scheduling-free receiver can avoid the problem of scrambling code uncertainty caused by user detection uncertainty by traversing all possible scrambling codes, but this means that each scrambling code must be descrambled once, and then FEC decoded. Once, this will lead to excessive FEC decoding complexity.
  • the channel estimation of the user must be performed.
  • the collision of the reference signal reduces the accuracy of the channel estimation of the user, and the collision of the scrambling code results in The accuracy of the channel estimation of the user's data applied by the receiving side is also reduced, which eventually leads to inaccurate interference cancellation of the user's data, and the residual interference is large, which causes the demodulation performance of the subsequent users to decrease.
  • a technical problem to be solved by the present disclosure is to provide a partial pseudo-randomization processing method, a corresponding device, a device, and a storage medium to at least improve the performance of the scheduling-free transmission.
  • a partial pseudo-randomization processing method in an embodiment of the present disclosure includes:
  • the d 1 , d 2 , ..., d N are encoded.
  • a partial pseudo-randomization processing method in an embodiment of the present disclosure includes:
  • Partial K bits of the decoded N bits are subjected to pseudo-randomization removal to recover the N bits before pseudo-randomization processing on the transmitting side; where K is greater than 0 and less than or equal to N.
  • a processing module configured to perform pseudo-randomization processing on a part of the bits of the N bits b 1 , b 2 , ..., b N to generate new N bits d 1 , d 2 , ..., d N ;
  • An encoding module configured to encode the d 1 , d 2 , ..., d N.
  • a decoding apparatus in an embodiment of the present disclosure includes:
  • a decoding module for decoding the encoded N bits
  • the removing module is configured to perform pseudo-randomization processing on a part of the decoded N-bit K bits, and recover the N bits before the pseudo-randomization processing on the transmitting side; where K is greater than 0 and less than or equal to N.
  • a transmitting device in an embodiment of the present disclosure includes a memory and a processor; the memory stores an encoded computer program, and the processor can execute the computer program to implement the method for a transmitting side as described above. A step of.
  • a receiving device in an embodiment of the present disclosure includes a memory and a processor; the memory stores a decoding computer program, and the processor can execute the computer program to implement the foregoing for the receiving side. Method steps.
  • a computer storage medium in the embodiments of the present disclosure stores an encoded computer program and / or a decoded computer program
  • Various embodiments of the present disclosure perform pseudo-randomization processing on some of the N bits to be encoded before encoding, so that the performance of scheduling-free transmission can be effectively improved and the scheduling-free transmission can be effectively reduced while ensuring the interference randomization effect.
  • the complexity of encoding and decoding during transmission effectively improves demodulation performance.
  • FIG. 2 is a schematic diagram of a K-bit scrambling process by an N-K bit shift register according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of an optional transmitting-side partial pseudo-randomization processing method in an embodiment of the present disclosure
  • FIG. 5 is a flowchart of a partial pseudo-randomization processing method on a receiving side according to an embodiment of the present disclosure
  • FIG. 6 is a flowchart of a transmitting side and a receiving side that do not use CRC in the embodiment of the present disclosure
  • FIG. 7 is a flowchart of a transmitting side and a receiving side that apply partial scrambling before CRC encoding in an embodiment of the present disclosure
  • FIG. 8 is a flowchart of a transmitting side and a receiving side applying partial scrambling after CRC encoding in an embodiment of the present disclosure
  • FIG. 10 is a schematic structural diagram of a decoding device according to an embodiment of the present disclosure.
  • the present disclosure provides a partial pseudo-randomization processing method, corresponding device, device, and storage medium.
  • the disclosure is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.
  • module means a suffix such as "module”, “component”, or “unit” for indicating an element is merely for the benefit of the description of the present disclosure, and it has no specific meaning itself. Therefore, “modules,” “components,” or “units” can be used in combination.
  • An embodiment of the present disclosure provides a partial pseudo-randomization processing method. As shown in FIG. 1, the method includes:
  • the method in the embodiment of the present disclosure is executed on a transmitting side (for example, a base station).
  • a transmitting side for example, a base station.
  • pseudo-randomization processing is performed on some bits of N bits b 1 , b 2 , ..., b N to generate new N bits d 1 , d 2 ,. .., d N , and then perform corresponding FEC or CRC encoding on d 1 , d 2 , ..., d N , which can effectively improve the performance of scheduling-free transmission and effectively reduce the premise of ensuring random effects of interference
  • the complexity of encoding and decoding in scheduling-free transmission effectively improves demodulation performance. Can effectively solve the following problems:
  • the receiving side cannot know the scrambling code exactly before FEC decoding, which will cause serious performance problems for descrambling and decoding.
  • user detection on the receiving side is uncertain, and the scrambling code cannot be known exactly before FEC decoding;
  • scheduling-free data transmission with a reference signal you can refer to The method of binding signals with scrambling codes is to obtain the scrambling code information by detecting the reference signals.
  • the user detection based on the reference signals cannot guarantee absolute accuracy, so it cannot be accurate before FEC decoding. Know the scrambling code.
  • the scheduling-free receiver can avoid the problem of scrambling code uncertainty caused by user detection uncertainty by traversing all possible scrambling codes, but this means that each scrambling code must be descrambled once, and then FEC decoded. Once, this will lead to excessive FEC decoding complexity.
  • the user randomly selects a transmission signature If it is a scheduling-free data transmission with a reference signal, and the reference signal and the scrambling code are bound.
  • the user randomly selects the reference signal and the scrambling code different users may choose the same reference signal and the scrambling code, that is, a collision occurs.
  • the receiving side can detect the collision reference signal, using it as a channel estimation can only estimate the sum of the channels of the colliding users, and cannot estimate the channels of the colliding users.
  • the collision code of the collision user is the same, so their data randomness may be insufficient, so the interference randomness is not enough.
  • the channel estimation of the user must be performed.
  • the collision of the reference signal reduces the accuracy of the channel estimation of the user, and the collision of the scrambling code results in The accuracy of the channel estimation of the user's data applied by the receiving side is also reduced, which eventually leads to inaccurate interference cancellation of the user's data, and the residual interference is large, which causes the demodulation performance of the subsequent users to decrease.
  • the pseudo-randomization processing is performed on a part of the bits of the N bits b 1 , b 2 , ..., b N to generate new N bits d 1 , d 2 , ..., d N , Can include:
  • the d 1 , d 2 , ..., d N include K bits And another NK bit
  • the pseudo-randomization processing is performed on a part of the bits of the N bits b 1 , b 2 , ..., b N to generate new N bits d 1 , d 2 , ..., d N , Can also include:
  • the d 1 , d 2 , ..., d N include K bits And another NK bit
  • the pseudo-randomization process is described by Decide, or, as stated Decide, or, as stated Together with the information S agreed on the receiving side, or Together with the bit sequence M agreed on the receiving side, or Together with the information S agreed on the receiving side, or And jointly determined with the agreed bit sequence M on the receiving side; where K is greater than 0 and less than or equal to N.
  • the pseudo-randomization processing is performed on a part of the bits of the N bits b 1 , b 2 , ..., b N to generate new N bits d 1 , d 2 , ..., d N , It can also include:
  • the d 1 , d 2 , ..., d N include K bits And another NK bit
  • the generation of the K long pseudo-random sequence c 1 , c 2 , ..., c K is determined by the Decide, or, as stated Together with the information S agreed on the receiving side, or And jointly determined with the agreed bit sequence M on the receiving side; where K is greater than 0 and less than or equal to N.
  • the pseudo-randomization processing is performed on a part of the bits of the N bits b 1 , b 2 , ..., b N to generate new N bits d 1 , d 2 , ..., d N , Can also include:
  • the d 1 , d 2 , ..., d N include K bits And another NK bit
  • the generation of the K long pseudo-random sequence c 1 , c 2 , ..., c K is determined by the Decide, or, as stated Decide, or, as stated Together with the information S agreed on the receiving side, or Together with the bit sequence M agreed on by the receiving side, or, Together with the information S agreed on the receiving side, or And jointly determined with the agreed bit sequence M on the receiving side; where K is greater than 0 and less than or equal to N.
  • said combining said Processing in a manner agreed with the receiving side generates the described It can also include at least one of the following:
  • the agreed information with the receiving side includes one of the following: system frame number, transmission slot number, cell identification, sector identification, beam identification, preamble and demodulation related information, and an agreed information;
  • the pseudo-randomization processing includes scrambling processing, that is, in the embodiments of the present disclosure, a scrambling code may be generated according to the non-scrambled N-K bits; or,
  • a scrambling code is generated according to the non-scrambled N-K bits and a predetermined bit sequence M on the receiving side.
  • the information S agreed with the receiving side includes at least one of the following: a system frame number, a transmission slot number, a cell identifier, a sector identifier, a beam identifier, related information of a preamble and a demodulation pilot, and an agreed Information.
  • the bit sequence M agreed with the receiving side includes at least one of the following:
  • bit sequence determined by the system frame number a predetermined bit sequence.
  • the related information of the preamble and the demodulation pilot may also include one of the following: a preamble root index, a cyclic shift order index, a demodulation pilot root index, a demodulation pilot cyclic shift order index, and a demodulation reference.
  • a preamble root index a cyclic shift order index
  • a demodulation pilot root index a demodulation pilot cyclic shift order index
  • a demodulation reference may also include one of the following: a preamble root index, a cyclic shift order index, a demodulation pilot root index, a demodulation pilot cyclic shift order index, and a demodulation reference.
  • the signal comb DMRS Comb paradigm DRMS Comb Pattern
  • DMRS OCC Pattern the demodulation reference signal OCC paradigm
  • the generation of the scrambling code depends on any one of the following information: NK bit not scrambled, NK bit unscrambled and system frame number, transmission slot number, cell identifier, fan Area identification, beam identification, related information of preamble and demodulation pilot, an agreed message.
  • the non-scrambled N-K bits and the information S or bit sequence M agreed with the receiving side are used to generate N-K bits, and then the jointly generated N-K bits are used as the initial value of the scrambling code generator to generate a K-length scrambling code sequence.
  • the original N bits are b 1 , b 2 , ..., b N
  • the generated K-length scrambling code is c
  • the scrambled data is d
  • the value of N c It can be 1600
  • b 1 b 2 ... b NK are NK bits.
  • codeword bits may be obtained by coding the scrambled K bits and the unscrambled N-K bits in the following manner.
  • a scrambled sequence is generated by combining the NK bit and a NK long initial sequence, and the scrambled sequence is obtained by performing a specific operation on two processed sequences.
  • FIG NR 3 / LTE scrambling code generator of the example shown in formula, wherein x 1 is initialized to NK bits long, then using the equation (6) to generate a new x 1, c init value of at least the following information
  • One decision system frame number, transmission slot number, cell identification (cell ID), sector identification (sector ID), beam identification (beam ID), leading root index, cyclic shift order index, demodulation pilot Root index, demodulation pilot cyclic shift order index, demodulation reference signal comb DMRS Comb pattern (DRMS Comb Pattern) and demodulation reference signal OCC pattern (DMRS OCC pattern), an agreed message.
  • x 1 (n + 31) (x 1 (n + 3) + x 1 (n)) mod2 (6)
  • x 2 (n + 31) (x 2 (n + 3) + x 2 (n + 2) + x 2 (n + 1) + x 2 (n)) mod2 (7)
  • n ID Possible values of n ID include:
  • n ID takes the cell ID.
  • the encoding when the encoding includes forward error correction FEC encoding, after encoding the d 1 , d 2 , ..., d N , the encoding may also include:
  • Codeword bits are formed according to the FEC encoding, and the codeword bits are extended and mapped to corresponding time-frequency resources after multidimensional modulation; or, codeword bits are formed according to the FEC encoding, and the codeword bits are Sparsely map to the corresponding time-frequency resources after modulation; where the transmission symbols are obtained after multi-dimensional modulation; or
  • the codeword bits are formed according to the FEC encoding, and the codeword bits are scrambled after the bits are repeated; wherein the codeword bits are scrambled after the bits are repeated, and then the transmission symbol can be obtained after a set process.
  • An embodiment of the present disclosure provides a partial pseudo-randomization processing method. As shown in FIG. 4, in the embodiment of the present disclosure, a scrambling method in pseudo-randomization processing is used as an example. The method includes:
  • S401 Scramble part of the N bits, and process the remaining bits in a manner agreed with the receiving side to generate new N bits, that is, scramble the K bits of the N bits and the remaining NK bits. Process in a manner agreed with the receiving side to generate new N bits;
  • the encoding may include forward error correction FEC encoding or CRC encoding; the forward error correction FEC encoding includes convolutional code, RS code, LDPC encoding, Turbo encoding, or Polar encoding, and the like.
  • the K-bit information of the N bits to be encoded is scrambled, the remaining NK bits are processed in a manner agreed with the receiving side, and then the scrambled K-bits are processed.
  • Perform corresponding FEC or CRC encoding with the NK bits processed in a manner agreed with the receiving side which can effectively reduce the complexity of coding and decoding in the non-orthogonal multiple access technology, especially under the premise of ensuring the randomization effect of interference, Effectively avoid the complexity of multiple decoding caused by the uncertainty of the scrambling code.
  • the K-bit scrambling of N bits may include:
  • Process and generate in a way agreed with the receiving side include Without processing, directly as Or, using the information agreed with the receiving side, Processing to generate said
  • the information agreed with the receiving side includes one of the following: system frame number, transmission slot number, cell identification, sector identification, beam identification, preamble and demodulation pilot related information, or an agreed information; or Using a bit sequence agreed with the receiving side, Processing to generate said
  • the bit sequence agreed with the receiving side includes one of the following: a bit sequence determined by a system frame number, a bit sequence determined by a transmission slot number, a bit sequence determined by a cell identifier, a bit sequence determined by a sector identifier, and a beam identification decision The bit sequence, the bit sequence determined by the relevant information of the preamble and the demodulation pilot, a predetermined bit sequence.
  • K long pseudo-random sequences c 1 , c 2 , ..., c K is given by Decide, or, by Decide, or, by Together with the information S agreed on the receiving side, or Together with the bit sequence M agreed on the receiving side, or Together with the information S agreed on the receiving side, or It is also determined together with the agreed bit sequence M on the receiving side.
  • the information S agreed with the receiving side may include at least one of the following:
  • System frame number transmission slot number, cell identification, sector identification, beam identification, preamble and demodulation pilot related information, an agreed message.
  • the joint decision with the bit sequence M agreed by the receiving side may also include at least one of the following:
  • the related information of the preamble and the demodulation pilot may also include one of the following: a preamble root index, a cyclic shift order index, a demodulation pilot root index, a demodulation pilot cyclic shift order index, and a demodulation reference.
  • a preamble root index a cyclic shift order index
  • a demodulation pilot root index a demodulation pilot cyclic shift order index
  • a demodulation reference may also include one of the following: a preamble root index, a cyclic shift order index, a demodulation pilot root index, a demodulation pilot cyclic shift order index, and a demodulation reference.
  • the signal comb DMRS Comb paradigm DRMS Comb Pattern
  • DMRS OCC Pattern the demodulation reference signal OCC paradigm
  • An embodiment of the present disclosure provides a partial pseudo-randomization processing method. As shown in FIG. 5, the method includes:
  • S502 Perform pseudo pseudorandomization processing on a part of the decoded N bits of K bits, and recover the N bits before the pseudo randomization processing on the transmitting side; where K is greater than 0 and less than or equal to N.
  • the embodiments of the present disclosure can effectively improve the performance of scheduling-free transmission, effectively reduce the complexity of coding and decoding, and effectively improve the demodulation performance on the premise of ensuring the randomization effect of interference.
  • the method in the embodiment of the present disclosure is executed on a receiving side (for example, a client).
  • the transmitting side scrambles a part of the N bits b 1 , b 2 , ..., b N to generate new N bits d 1 , d 2 , ..., d N , and then d 1 , d 2 , ..., d N
  • the receiving side performs descrambling processing on the K bits of N bits after passing the CRC check, and the processed N bits constitute decoded N bits
  • the transmitting side scrambles a part of the N bits b 1 , b 2 , ..., b N to generate new N bits d 1 , d 2 , ..., d N , and then d 1
  • the receiving side performs descrambling processing on the N-bit K bits decoded by the forward error correction FEC, and then judges some of the bits through the CRC check. Whether the N bits after the process of removing pseudo-randomization is correct, and the N bits that pass the CRC check constitute the decoded N bits.
  • performing the process of removing pseudo-randomization on a part of the decoded N-bit K bits may include:
  • performing the process of removing pseudo-randomization on a part of the decoded N-bit K bits may include:
  • the process of removing pseudo-randomization on a part of the decoded N bits of K bits includes descrambling the scrambled K bits of the decoded N bits.
  • the method for determining the scrambling code when descrambling includes:
  • the initial state of the pseudo-random sequence generator can be determined according to the other N-K bits in the decoded N bits, or,
  • the jointly determined bit sequence M of the transmitting side and the receiving side includes at least one of the following:
  • Bit sequence determined by system frame number bit sequence determined by transmission slot number, bit sequence determined by cell identifier, bit sequence determined by sector identifier, bit sequence determined by beam identifier, preamble and demodulation pilot information Bit sequence, a predetermined bit sequence.
  • the scrambling code can be found based on the scrambling code lookup table by storing a scrambling code lookup table on the receiving side. For example, a scramble code of K length is stored in each storage unit of the scramble code lookup table.
  • NK K length scramble codes There are 2 NK storage units in total, and 2 NK K length scramble codes are stored, that is, the number of addressing bits of the code lookup table is NK bits; or a column of the scramble code lookup table may be NK bits, or a value or some value obtained by mapping the NK bits, and the other column is a K-length scramble code, except for the table
  • it can also be some kind of mapping rule, from NK bits or some values generated by it to the scrambling code itself or a part of the scrambling code.
  • the final scrambling code can be obtained by performing some operations on this part of the scrambling code.
  • the addressing of the scrambling sequence memory or the lookup table can be determined according to the other NK bits in the decoded N bits, or according to the other NK bits in the decoded N bits and the transmitting side and the receiving side agree on The information S is determined together; or, it is determined according to the other NK bits in the decoded N bits and the bit sequence M agreed between the transmitting side and the receiving side.
  • the method may further include:
  • Interference cancellation is performed based on the estimated channel.
  • symbols are generated according to the symbol generation process on the transmitting side, and channel estimation is performed using the symbols, so that interference cancellation can be performed according to the estimated channel, thereby effectively improving the interference of IoT (Internet of Things) devices
  • IoT Internet of Things
  • generating the symbols according to the symbol generating process on the transmitting side may further include:
  • the encoding of the d 1 , d 2 , ..., d N includes:
  • Codeword bits are formed according to the FEC encoding, and the codeword bits are extended and mapped after multidimensional modulation to obtain corresponding time-frequency resources; or codeword bits are formed according to the FEC encoding, and the codeword bits are multidimensional Sparsely map to the corresponding time-frequency resources after modulation; or form codeword bits according to the FEC encoding, interleave the codeword bits after bit repetition, and obtain symbols according to a preset processing flow; or
  • the judgment criterion for the successful translation of the decoder may include any one of the following:
  • the cyclic redundancy check CRC check satisfies the constraints of the forward error correction FEC codeword, and the cyclic redundancy check CRC check simultaneously satisfies the constraints of the forward error correction FEC codeword.
  • a transmitting and receiving system composed of a transmitting side and a receiving side is taken as an example, and the methods in Embodiments 1 to 3 are described by exemplarily describing the processes of the transmitting side (such as a base station) and the receiving side (such as a UE and a receiver).
  • the processing on the transmitting side uses the NK bits taken from the N-length information bits generated after adding the CRC (there may be no CRC in some specific scenarios) to all information bits to generate a K-length scramble code, and this K-length scramble code is used.
  • the code scrambles the K-length information bits, combines them with the NK-length bits to form N-length information bits, and then performs FEC encoding on the partially scrambled information bits. If the code rate is set to r, the length of the encoded bit stream is N / r .
  • the codeword is partially scrambled before CRC encoding.
  • the decoder judges that the decoding is correct according to the CRC.
  • the receiver identifies the NK bit according to the rules agreed in advance by the base station and the UE, and then generates a K-length scrambling code based on the NK bit, and then uses the K-length scrambling code to descramble the K bits.
  • the descrambled K bits and N are not
  • the scrambled NK bits are combined into N bits using the same rules as the transmitting side, where the N bits are tested by CRC, and it is determined that the N bits are indeed successfully decoded.
  • the codeword is partially scrambled after CRC encoding, and the receiver may optionally satisfy the codeword itself to restrict the post- Russiann bits in accordance with the rules agreed in advance by the base station and the UE. Identify the NK bit and then generate a K long scrambling code based on the NK bit. Then use this K long scrambling code to descramble the K bits. Use the same descrambling K bits and N unscrambled NK bits as the transmitting side. The rules are combined into N bits, where these N bits pass the CRC detection, and it is determined that the N bits are indeed decoded successfully.
  • An embodiment of the present disclosure provides an encoding device. As shown in FIG. 9, the device includes:
  • the encoding module 12 is configured to encode the d 1 , d 2 , ..., d N.
  • b 1 , b 2 , ..., b N include K bits.
  • the d 1 , d 2 , ..., d N include K bits
  • the processing module 10 is specifically configured to convert the Performing pseudo-randomization processing to generate said Will be described As said Wherein the Performing pseudo-randomization processing to generate said
  • the pseudo-randomization process is described by Decide, or, as stated Jointly determined with the information S agreed on the receiving side, or, Determined together with the agreed bit sequence M on the receiving side; where K is greater than 0 and less than or equal to N.
  • b 1 , b 2 , ..., b N include K bits.
  • the processing module 10 is specifically configured to convert the Generate pseudo-randomization Will be described Process and generate in a way agreed with the receiving side Wherein the Performing pseudo-randomization processing to generate said
  • the pseudo-randomization process is described by Decide, or, as stated Decide, or, as stated Jointly determined with the information S agreed on the receiving side, or, Jointly determined with the agreed bit sequence M on the receiving side, or Together with the information S agreed on the receiving side, or And jointly determined with the agreed bit sequence M on the receiving side; where K is greater than 0 and less than or equal to N.
  • b 1 , b 2 , ..., b N include K bits.
  • the d 1 , d 2 , ..., d N include K bits
  • the processing module 10 is specifically configured to use K long pseudo-random sequences c 1 , c 2 , ..., c K Performing scrambling processing to generate said Will be described
  • the generation of the K long pseudo-random sequence c 1 , c 2 , ..., c K is described by Decide, or, as stated Jointly determined with the information S agreed on the receiving side, or, And jointly determined with the agreed bit sequence M on the receiving side; where K is greater than 0 and less than or equal to N.
  • the information S agreed with the receiving side may include at least one of the following:
  • System frame number transmission slot number, cell identification, sector identification, beam identification, preamble and demodulation pilot related information, an agreed message.
  • bit sequence determined by the system frame number a predetermined bit sequence.
  • the processing module 10 Processing in a manner agreed with the receiving side generates the described , It is also specifically used for at least one of the following:
  • the agreed information with the receiving side includes one of the following: system frame number, transmission slot number, cell identification, sector identification, beam identification, preamble and demodulation related information, and an agreed information;
  • the bit sequence agreed with the receiving side includes one of the following: a bit sequence determined by a system frame number, a bit sequence determined by a transmission slot number, a bit sequence determined by a cell identifier, a bit sequence determined by a sector identifier, and a beam identification decision The bit sequence, the bit sequence determined by the relevant information of the preamble and the demodulation pilot, a predetermined bit sequence.
  • the preamble and demodulation related information may include one of the following:
  • the encoding includes forward error correction FEC encoding and / or cyclic redundancy check CRC encoding; when the encoding includes forward error correction FEC encoding, the encoding module 12 d 1 , d 2 , ..., d N are further used to form codeword bits according to the FEC encoding, and expand the modulation symbols generated after the codeword bits are modulated; or, according to the FEC encoding forms codeword bits, and the codeword bits are expanded and mapped to corresponding time-frequency resources after multi-dimensional modulation; or, codeword bits are formed according to the FEC encoding, and the codeword bits are sparse after multidimensional modulation.
  • Map to corresponding time-frequency resources or, form codeword bits according to the FEC encoding, and interleave the codeword bits after bit repetition; or, form codeword bits according to the FEC encoding, and encode the codeword bits
  • the word bits are scrambled after the bits are repeated.
  • the embodiments of the present disclosure are device embodiments corresponding to the first embodiment and the second embodiment, and have corresponding technical effects.
  • An embodiment of the present disclosure provides a decoding device. As shown in FIG. 10, the device includes:
  • a decoding module 20 configured to decode the encoded N bits
  • the removing module 22 when the removing module 22 performs pseudo-randomization processing on a part of the decoded N bits of K bits, it is specifically used to determine the pair according to the other NK bits in the decoded N bits.
  • the information S agreed between the transmitting side and the receiving side may include at least one of the following:
  • the bit sequence M agreed between the transmitting side and the receiving side may also include at least one of the following:
  • bit sequence determined by the system frame number a predetermined bit sequence.
  • the removing module 22 when the removing module 22 performs pseudo-randomization processing on a part of the decoded N-bit K bits, it is specifically configured to perform a K-length pseudo-random sequence on the K bits for solution Disturb processing.
  • the apparatus further includes:
  • An estimation module is configured to generate symbols for the recovered N bits according to a symbol generating process on the transmitting side; use the generated symbols to perform channel estimation; and perform interference cancellation according to the estimated channel.
  • the embodiment of the present disclosure is a device embodiment corresponding to the third embodiment, and has corresponding technical effects.
  • An embodiment of the present disclosure provides a transmitting device.
  • the device includes a memory and a processor.
  • the memory stores a coded computer program, and the processor can execute the computer program to implement the first and second embodiments. Steps of any of the methods described.
  • An embodiment of the present disclosure provides a receiving device.
  • the device includes a memory and a processor.
  • the memory stores a decoding computer program, and the processor can execute the computer program to implement any one of the third embodiments. Steps of the method.
  • the computer-readable storage medium in the embodiments of the present disclosure may be a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium known in the art.
  • a storage medium may be connected to the processor, so that the processor can read information from and write information to the storage medium; or the storage medium may be a component of the processor.
  • the processor and the storage medium may reside in an application specific integrated circuit.
  • Embodiments 7 to 10 can refer to Embodiments 1 to 6, which have corresponding technical effects.

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Abstract

本发明公开了一种部分伪随机化处理方法、相应装置、设备及存储介质,所述方法包括对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N;对所述d 1,d 2,...,d N进行编码。本公开在确保干扰随机化效应的前提下,有效提高免调度传输的性能,有效降低免调度传输中编译码的复杂度,有效提高解调性能。 (图1)

Description

部分伪随机化处理方法、相应装置、设备及存储介质 技术领域
本公开涉及通信技术领域,特别是涉及一种部分伪随机化处理方法、相应装置、设备及存储介质。
背景技术
对需要传输的比特序列进行伪随机化处理,能够增加比特序列的随机性。如果不同的用户对比特序列采用不同的伪随机化处理,则伪随机化处理还能够减少不同用户的比特序列的相关性,达到用户间干扰随机化的效果,这会带来两点好处:1、用户间干扰随机化后,用户数据符号的检测性能会更鲁棒。2、非正交接入场景,接收机需要利用译码正确的用户数据来提高其信道估计的精度(这一技术可被称为数据辅助的信道估计技术,或者data-pilot技术),以使得重构信号更准确,干扰消除的残余误差更小时,用户间比特伪随机化能提高此信道估计精度,进而能提高整个干扰消除接收机的性能。
用户间干扰随机化对于用户数据特征相同的场景,效果尤其明显;比如,对于电表一类的应用,它们可能会在每个月的同一天上报过去一个月的耗电情况,那么这些不同的用户可能发送的信息都是"到目前,耗电量是xxx。",用于表示这一信息的信源比特会非常相近,而用户间干扰随机化可以在接收机区分用户时起到很好的作用。
发射侧对需要传输的比特序列进行伪随机化处理,接收侧就需要对相应的比特序列进行去除伪随机化的处理,这要求接收侧知道发射侧伪随机处理的方式。
对需要传输的比特序列进行伪随机化处理可以通过不同方式实现,其中一种经典的、最常用的方式是使用一条伪随机的比特序列,对需要传输的比特序列进行加扰。因此所使用的伪随机比特序列又可以称为扰码序列,通常是通过一个伪序列发生器产生的。加扰过程就是将需要传输的比特序列和扰码序列对应的比特进行异或运算,生成新的比特序列的过程。
发射侧对需要传输的比特序列进行加扰处理,接收侧就需要对相应的比特序列进行解扰的处理,同样,解扰处理要求接收侧知道发射侧使用的扰码。
现有的通信方式中,已经支持用户对需要传输的比特序列采取用户特定(UE-specific)的扰码进行加扰的比特伪随机化过程。不过,已有扰码方案是对前向纠错(FEC,Forward Error Correction)编码器输出的码字比特进行加扰的。接收侧的解扰则相应地是在对前向纠错译码前的码字先解扰,然后再进行FEC译码的。前向纠错编码又叫信道纠错编码,经典的前向纠错编码包括卷积码,RS码,LDPC编码、Turbo编码或者Polar编码等。
现有的通信方式下,接收侧在译码前是知道发射侧所使用的扰码,因此可以很容易完成解扰操作,然后再译码。但是,已存在的扰码方案应用到免调度传输时,接收侧(例如基站)在FEC译码前的解扰会存在以下问题:
1、因为用户检测存在不确定性,则接收侧在FEC译码前是不能确切知道扰码的,这会给解扰、译码带来严重的性能问题。例如,没有参考信号的免调度数据传输,接收侧的用户检测是不确定的,则在FEC译码前是不能确切知道扰码的;而带有参考信号的免调度数据传输,虽然可以通过参考信号与扰码绑定的方式,通过检测参考信号来获知扰码的信息,但如果参考信号较少,则基于参考信号的用户检测也是不能保证绝对准确的,因此在FEC译码前也是不能确切知道扰码的。
2、免调度接收机可以通过遍历所有可能的扰码,来避免用户检测不确定性带来的扰码不确定性问题,但这样意味着每个扰码都要解扰一次,然后FEC译码一次,如此会导致FEC译码复杂度过高。
3、对于用户随机选择传输签名(Signature)的免调度传输场景。如果是带有参考信号的免调度数据传输,且参考信号与扰码是绑定的。则用户随机选择参考信号和扰码时,会出现不同用户选择相同的参考信号和扰码,也就是出现碰撞。这种情况下,接收侧就算能检测到这个碰撞的参考信号,以其做信道估计也只能估计出碰撞的用户的信道之和,并不能估计出碰撞的各个用户的信道的。而碰撞用户的扰码又是一样,他们的数据随机性也因此可能不足,因而干扰随机性不够。则就算其中一个用户能被译码正确,但要消除这个译对用户的干扰,就必须或者这个用户的信道估计,参考信号的碰撞减低了此用户的信道估计的精度,扰码也碰撞则导致接收侧应用译对用户的数据的信道估计精度也下降,最终导致对译对用户数据的干扰消除不够准确,残余干扰较大,导致后面用户的解调性能下降。
对于上述问题,目前尚未提出有效的方案。
发明内容
为了克服上述缺陷,本公开要解决的技术问题是提供一种部分伪随机化处理方法、相应装置、设备及存储介质,用以至少提高免调度传输的性能。
为解决上述技术问题,本公开实施例中的一种部分伪随机化处理方法包括:
对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N
对所述d 1,d 2,...,d N进行编码。
为解决上述技术问题,本公开实施例中的一种部分伪随机化处理方法包括:
对编码的N比特进行译码;
对译码后的N比特的部分K比特进行去除伪随机化的处理,恢复出发射侧进行伪随机化处理前的N比特;其中K大于0且小于或等于N。
为解决上述技术问题,本公开实施例中的一种编码装置包括:
处理模块,用于对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N
编码模块,用于对所述d 1,d 2,...,d N进行编码。
为解决上述技术问题,本公开实施例中的一种译码装置包括:
译码模块,用于对编码的N比特进行译码;
去除模块,用于对译码后的N比特的部分K比特进行去除伪随机化的处理,恢复出发射侧进行伪随机化处理前的N比特;其中K大于0且小于或等于N。
为解决上述技术问题,本公开实施例中的一种发射设备包括存储器和处理器;所述存储器存储有编码计算机程序,所述处理器可执行所述计算机程序,以实现如上用于发送侧方法的步骤。
为解决上述技术问题,本公开实施例中的一种接收设备包括存储器和处理器;所述存储器存储有译码计算机程序,所述处理器可执行所述计算机程序,以实现如上用于接收侧方法的步骤。
为解决上述技术问题,本公开实施例中的一种计算机存储介质存储有编码计算机程序和/或译码计算机程序;
当所述编码计算机程序被至少一个处理器执行时,以实现如上用于发送侧方法的步骤;
当所述译码计算机程序被至少一个处理器执行时,以实现如上用于接收侧方法的步骤。
本公开有益效果如下:
本公开各个实施例通过在编码之前,对待编码的N个比特中的部分比特进行伪随机化处理,从而可以在确保干扰随机化效应的前提下,有效提高免调度传输的性能,有效降低免调度传输中编译码的复杂度,有效提高解调性能。
附图说明
图1是本公开实施例中一种发射侧的部分伪随机化处理方法的流程图;
图2是本公开实施例中N-K位移位寄存器对K比特加扰过程示意图;
图3是本公开实施例中LTE/NR扰码生成过程示意图;
图4是本公开实施例中一种可选地发射侧的部分伪随机化处理方法的流程图;
图5是本公开实施例中一种接收侧的部分伪随机化处理方法的流程图;
图6是本公开实施例中不采用CRC发射侧和接收侧的流程图;
图7是本公开实施例中在CRC编码之前应用部分加扰的发射侧和接收侧的流程图;
图8是本公开实施例中在CRC编码之后应用部分加扰的发射侧和接收侧的流程图;
图9是本公开实施例中一种编码装置的结构示意图;
图10是本公开实施例中一种译码装置的结构示意图。
具体实施方式
为了解决现有技术的问题,本公开提供了一种部分伪随机化处理方法、相应装置、设备及存储介质,以下结合附图以及实施例,对本公开进行进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本公开,并不限定本公开。
在后续的描述中,使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有 利于本公开的说明,其本身没有特定的意义。因此,“模块”、“部件”或“单元”可以混合地使用。
使用用于区分元件的诸如“第一”、“第二”等前缀仅为了有利于本公开的说明,其本身没有特定的意义。
实施例一
本公开实施例提供一种部分伪随机化处理方法,如图1所示,所述方法包括:
S101,对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N
S102,对所述d 1,d 2,...,d N进行编码。其中在一些实施例中,所述编码可以包括前向纠错FEC编码或者CRC(Cyclic Redundancy Check,循环冗余校验编码);前向纠错FEC编码包括卷积码,RS码,LDPC编码、Turbo编码或者Polar编码等,N为正整数。
本公开实施例中方法在发射侧(例如基站)执行。本公开实施例通过在进行FEC编码或者CRC编码之前,对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N,然后对d 1,d 2,...,d N进行相应的FEC或者CRC编码,从而可以在确保干扰随机化效应的前提下,有效提高免调度传输的性能,有效降低免调度传输中编译码的复杂度,有效提高解调性能。可以有效解决下述各个问题:
1、因为用户检测存在不确定性,则接收侧在FEC译码前是不能确切知道扰码的,这会给解扰、译码带来严重的性能问题。例如,没有参考信号的免调度数据传输,接收侧的用户检测是不确定的,则在FEC译码前是不能确切知道扰码的;而带有参考信号的免调度数据传输,则可以通过参考信号与扰码绑定的方式,通过检测参考信号来获知扰码的信息,但如果参考信号较少,则基于参考信号的用户检测也是不能保证绝对准确的,因此在FEC译码前也是不能确切知道扰码的。
2、免调度接收机可以通过遍历所有可能的扰码,来避免用户检测不确定性带来的扰码不确定性问题,但这样意味着每个扰码都要解扰一次,然后FEC译码一次,如此会导致FEC译码复杂度过高。
3、对于用户随机选择传输签名(Signature)的免调度传输场景。如果是带有参考信号的免调度数据传输,且参考信号与扰码是绑定的。则用户随机选择参考信号和扰码时,会出现不同用户选择相同的参考信号和扰码,也就是出现碰撞。这种情况下,接收侧就算能检测到这个碰撞的参考信号,以其做信道估计也只能估计出碰撞的用户的信道之和,并不能估计出碰撞的各个用户的信道的。而碰撞用户的扰码又是一样,他们的数据随机性也因此可能不足,因而干扰随机性不够。则就算其中一个用户能被译码正确,但要消除这个译对用户的干扰,就必须或者这个用户的信道估计,参考信号的碰撞减低了此用户的信道估计的精度,扰码也碰撞则导致接收侧应用译对用户的数据的信道估计精度也下降,最终导致对译对用户数据的干扰消除不够准确,残余干扰较大,导致后面用户的解调性能下降。
在一些实施例中,所述对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的 N比特d 1,d 2,...,d N,可以包括:
设所述b 1,b 2,...,b N中包含K比特
Figure PCTCN2019088816-appb-000001
和另外N-K比特
Figure PCTCN2019088816-appb-000002
所述d 1,d 2,...,d N中包含K比特
Figure PCTCN2019088816-appb-000003
和另外N-K比特
Figure PCTCN2019088816-appb-000004
将所述
Figure PCTCN2019088816-appb-000005
进行伪随机化处理生成所述
Figure PCTCN2019088816-appb-000006
将所述
Figure PCTCN2019088816-appb-000007
不进行伪随机化处理,直接作为所述
Figure PCTCN2019088816-appb-000008
将所述
Figure PCTCN2019088816-appb-000009
进行伪随机化处理生成所述
Figure PCTCN2019088816-appb-000010
的伪随机化处理由所述
Figure PCTCN2019088816-appb-000011
决定,或者,由所述
Figure PCTCN2019088816-appb-000012
以及与接收侧约定好的信息S共同决定,或者,由所述
Figure PCTCN2019088816-appb-000013
以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
在一些实施例中,所述对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N,也可以包括:
设所述b 1,b 2,...,b N中包含K比特
Figure PCTCN2019088816-appb-000014
和另外N-K比特的
Figure PCTCN2019088816-appb-000015
所述d 1,d 2,...,d N中包含K比特
Figure PCTCN2019088816-appb-000016
和另外N-K比特的
Figure PCTCN2019088816-appb-000017
将所述
Figure PCTCN2019088816-appb-000018
进行伪随机化处理生成
Figure PCTCN2019088816-appb-000019
将所述
Figure PCTCN2019088816-appb-000020
使用与接收侧约定好的方式进行处理生成
Figure PCTCN2019088816-appb-000021
将所述
Figure PCTCN2019088816-appb-000022
进行伪随机化处理生成所述
Figure PCTCN2019088816-appb-000023
的伪随机化处理由所述
Figure PCTCN2019088816-appb-000024
决定,或者,由所述
Figure PCTCN2019088816-appb-000025
决定,或者,由所述
Figure PCTCN2019088816-appb-000026
以及与接收侧约定好的信息S共同决定,或者,由所述
Figure PCTCN2019088816-appb-000027
以及与接收侧约定好的比特序列M共同决定,或者,由
Figure PCTCN2019088816-appb-000028
以及与接收侧约定好的信息S共同决定,或者,由
Figure PCTCN2019088816-appb-000029
以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
在一些实施例中,所述对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N,还可以包括:
设所述b 1,b 2,...,b N中包含K比特
Figure PCTCN2019088816-appb-000030
和另外N-K比特的
Figure PCTCN2019088816-appb-000031
所述d 1,d 2,...,d N中包含K比特
Figure PCTCN2019088816-appb-000032
和另外N-K比特的
Figure PCTCN2019088816-appb-000033
使用K长伪随机序列c 1,c 2,...,c K,对所述
Figure PCTCN2019088816-appb-000034
进行加扰处理生成所述
Figure PCTCN2019088816-appb-000035
将所述
Figure PCTCN2019088816-appb-000036
不进行加扰处理,直接作为
Figure PCTCN2019088816-appb-000037
所述K长伪随机序列c 1,c 2,...,c K的生成由所述
Figure PCTCN2019088816-appb-000038
决定,或者,由所述
Figure PCTCN2019088816-appb-000039
以及与接收侧约定好的信息S共同决定,或者,由所述
Figure PCTCN2019088816-appb-000040
以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
在一些实施例中,所述对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N,也可以包括:
设所述b 1,b 2,...,b N中包含K比特
Figure PCTCN2019088816-appb-000041
和另外N-K比特的
Figure PCTCN2019088816-appb-000042
所述d 1,d 2,...,d N中包含K比特
Figure PCTCN2019088816-appb-000043
和另外N-K比特的
Figure PCTCN2019088816-appb-000044
使用K长伪随机序列c 1,c 2,...,c K,对所述
Figure PCTCN2019088816-appb-000045
进行加扰处理生成所述
Figure PCTCN2019088816-appb-000046
将所述
Figure PCTCN2019088816-appb-000047
使用与接收侧约定好的方式进行处理生成所述
Figure PCTCN2019088816-appb-000048
所述K长伪随机序列c 1,c 2,...,c K的生成由所述
Figure PCTCN2019088816-appb-000049
决定,或者,由所述
Figure PCTCN2019088816-appb-000050
决定,或者,由所述
Figure PCTCN2019088816-appb-000051
以及与接收侧约定好的信息S共同决定,或者,由所述
Figure PCTCN2019088816-appb-000052
以及与接收侧约定好的比特序列M共同决定,或者,由所述
Figure PCTCN2019088816-appb-000053
以及与接收侧约定好的信息S共同决定,或者,由所述
Figure PCTCN2019088816-appb-000054
以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
在一些实施例中,所述将所述
Figure PCTCN2019088816-appb-000055
使用与接收侧约定好的方式进行处理生成所述
Figure PCTCN2019088816-appb-000056
也可以包括以下至少之一:
使用与接收侧约定好的信息,对所述
Figure PCTCN2019088816-appb-000057
进行处理,生成所述
Figure PCTCN2019088816-appb-000058
所述与接收侧约定好的信息包括以下之一:系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息;
使用与接收侧约定好的比特序列,对所述
Figure PCTCN2019088816-appb-000059
进行处理,生成所述
Figure PCTCN2019088816-appb-000060
所述与接收侧约定好的比特序列包括以下之一:系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
其中的伪随机化处理包括加扰处理,也就是说,本公开实施例中可以根据所述不加扰的N-K比特生成扰码;或者,
根据所述不加扰的N-K比特与接收侧约定好的信息S生成扰码;或者,
根据所述不加扰的N-K比特与接收侧约定好的比特序列M生成扰码。
其中,所述与接收侧约定好的信息S包括以下至少之一:系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息。
所述与接收侧约定好的比特序列M包括以下至少之一:
系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
其中,所述前导和解调导频的相关信息也可以包括以下一种:前导根索引、循环移位序索引、解调导频根索引、解调导频循环移位序索引、解调参考信号梳DMRS Comb的范式(DRMS Comb Pattern)和解调参考信号OCC范式(DMRS OCC Pattern)。
也就说,在一些实施例中,扰码的生成依赖于以下任一一种信息:不加扰的N-K比特、不加扰的N-K比特及系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息。
例如,在一些实施例中,当上述编码包括FEC编码时,可以通过以下方式在对加扰 的K比特和不加扰的N-K比特进行编码的得到码字比特。
利用N-K位比特移位寄存器的扰码发生器,将不加扰的N-K比特作为扰码发生器的初始值,生成K长的扰码序列;或者,
将不加扰N-K比特以及与接收侧约定好的信息S或者比特序列M共同产生N-K比特,然后将此共同产生的N-K比特作为扰码发生器的初始值,生成K长的扰码序列。
如图2及如下示例公式所示,原来N比特是b 1,b 2,...,b N,生成的K长扰码是c,加扰的后的数据是d,N c的取值可以是1600,b 1b 2...b N-K为N-K比特。
b (n+N-K)=(b n+2+b n)mod2                       (1)
Figure PCTCN2019088816-appb-000061
d N-K+1d N-K+2...d N=b N-K+1b N-K+2...b N+c 1c 2c 3...c K              (3)
d 1d 2...d N-K=b 1b 2...b N-K                    (4)
又如,在一些实施例中,当上述编码包括FEC编码时,可以通过以下方式在对加扰的K比特和不加扰的N-K比特进行编码的得到码字比特。
利用N-K比特和一个N-K长初始序列联合生成扰码序列,通过移位寄存器操作,并且对两条处理后的序列进行特定的操作得到扰码序列。如图3所示及如下NR/LTE中的扰码生成示例公式所示,其中x 1初始化为N-K长比特,接着采用公式(6)生成新的x 1,c init的取值由以下信息至少一项决定:系统帧号、传输时隙号、小区标识(小区ID)、扇区标识(扇区ID)、波束标识(波束ID)、前导根索引、循环移位序索引、解调导频根索引、解调导频循环移位序索引、解调参考信号梳DMRS Comb的范式(DRMS Comb Pattern)和解调参考信号OCC范式(DMRS OCC Pattern)、一个约定好的信息。
c n=(x 1(n+N c)+x 2(n+N c))mod2                (5)
x 1(n+31)=(x 1(n+3)+x 1(n))mod2               (6)
x 2(n+31)=(x 2(n+3)+x 2(n+2)+x 2(n+1)+x 2(n))mod2          (7)
Figure PCTCN2019088816-appb-000062
其中,c init=n RNTI·2 15+n ID,式中n RNTI为逐用户不同的信息,n ID可能取值包括:
如果配置了高层参数Data-scrambling-Identity,n ID∈{0,1,2,...,1023};
否则n ID取小区ID。
N c=1600;
x 1(0)=1,x 1(n)=0,n=1,2,...,30。
在一些实施例中,当所述编码中包括前向纠错FEC编码时,所述对所述d 1,d 2,...,d N进行编码之后,也可以包括:
根据所述FEC编码形成码字比特,对所述码字比特在星座调制后生成的符号进行扩展;其中,在星座调制后生成的符号为发射符号;或者
根据所述FEC编码形成码字比特,对所述码字比特在多维调制后扩展映射到相应的 时频资源上;或者,根据所述FEC编码形成码字比特,对所述码字比特在多维调制后稀疏映射到相应的时频资源上;其中,在多维调制后得到发射符号;或者
根据所述FEC编码形成码字比特,对所述码字比特在比特重复后进行交织;其中在交织后经过设定的处理可以得到发射符号;或者
根据所述FEC编码形成码字比特,对所述码字比特在比特重复后进行加扰;其中在比特重复后进行加扰,然后经过设定的处理可以得到发射符号。
实施例二
本公开实施例提供一种部分伪随机化处理方法,如图4所示,本公开实施例中以伪随机化处理中加扰方式为例,所述方法包括:
S401,对N比特的部分比特加扰,对剩余的比特按照与接收侧约定好的方式处理,生成新的N个比特,也就是说,对N个比特的K比特加扰,对剩余N-K比特按照与接收侧约定好的方式处理,生成新的N个比特;
S402,对新的N个比特进行编码,也就是说,对加扰的K比特和按照与接收侧约定好的方式处理的N-K比特进行编码。其中在一些实施例中,所述编码可以包括前向纠错FEC编码或者CRC编码;前向纠错FEC编码包括卷积码,RS码,LDPC编码、Turbo编码或者Polar编码等。
本公开实施例通过在进行FEC编码或者CRC编码之前,对待编码的N个比特中的K比特信息加扰,对剩余N-K比特按照与接收侧约定好的方式处理,然后对加扰后的K比特和按照与接收侧约定好的方式处理的N-K比特进行相应的FEC或者CRC编码,从而可以有效降低非正交多址技术中编译码的复杂度,特别的在确保干扰随机化效应的前提下,有效避免扰码的不确定导致的多次译码复杂度。
在一些实施例中,所述对N个比特的K比特加扰可以包括:
设所述N个比特b 1,b 2,...,b N中包含K比特
Figure PCTCN2019088816-appb-000063
和另外N-K比特的
Figure PCTCN2019088816-appb-000064
Figure PCTCN2019088816-appb-000065
使用与接收侧约定好的方式进行处理生成
Figure PCTCN2019088816-appb-000066
使用K长伪随机序列c 1,c 2,...,c K,对
Figure PCTCN2019088816-appb-000067
进行加扰处理生成
Figure PCTCN2019088816-appb-000068
其中,将
Figure PCTCN2019088816-appb-000069
使用与接收侧约定好的方式进行处理生成
Figure PCTCN2019088816-appb-000070
包括
Figure PCTCN2019088816-appb-000071
不进行处理,直接作为
Figure PCTCN2019088816-appb-000072
或者,使用与接收侧约定好的信息,对所述
Figure PCTCN2019088816-appb-000073
进行处理,生成所述
Figure PCTCN2019088816-appb-000074
所述与接收侧约定好的信息包括以下之一:系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息;或者,使用与接收侧约定好的比特序列,对所述
Figure PCTCN2019088816-appb-000075
进行处理,生成所述
Figure PCTCN2019088816-appb-000076
所述与接收侧约定好的比特序列包括以下之一:系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息 决定的比特序列、一个约定好的比特序列。
其中,K长伪随机序列c 1,c 2,...,c K的生成,由
Figure PCTCN2019088816-appb-000077
决定,或者,由
Figure PCTCN2019088816-appb-000078
决定,或者,由
Figure PCTCN2019088816-appb-000079
以及与接收侧约定好的信息S共同决定,或者,由
Figure PCTCN2019088816-appb-000080
以及与接收侧约定好的比特序列M共同决定,或者,由
Figure PCTCN2019088816-appb-000081
以及与接收侧约定好的信息S共同决定,或者,由
Figure PCTCN2019088816-appb-000082
以及与接收侧约定好的比特序列M共同决定。
在一些实施例中,所述与接收侧约定好的信息S可以包括以下至少之一:
系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息。
在一些实施例中,所述与接收侧约定好的比特序列M共同决定也可以包括以下至少之一:
系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
其中,所述前导和解调导频的相关信息也可以包括以下一种:前导根索引、循环移位序索引、解调导频根索引、解调导频循环移位序索引、解调参考信号梳DMRS Comb的范式(DRMS Comb Pattern)和解调参考信号OCC范式(DMRS OCC Pattern)。
实施例三
本公开实施例提供一种部分伪随机化处理方法,如图5所示,所述方法包括:
S501,对编码的N比特进行译码;
S502,对译码后的N比特的部分K比特进行去除伪随机化的处理,恢复出发射侧进行伪随机化处理前的N比特;其中K大于0且小于或等于N。
本公开实施例可以可以在确保干扰随机化效应的前提下,有效提高免调度传输的性能,有效降低免调度传输中编译码的复杂度,有效提高解调性能。
本公开实施例中方法在接收侧(例如客户端)执行。
例如,当发射侧对N比特b 1,b 2,...,b N的部分比特进行加扰处理,生成新的N个比特d 1,d 2,...,d N,然后对d 1,d 2,...,d N进行CRC编码时,接收侧对CRC校验通过后的N比特的K比特进行解扰处理,处理后的N比特构成已译码的N个比特
当发射侧对N比特b 1,b 2,...,b N的部分比特进行加扰处理,生成新的N个比特d 1,d 2,...,d N,然后对d 1,d 2,...,d N进行前向纠错FEC编码时,接收侧对前向纠错FEC译码后的N比特的K比特进行解扰处理,然后再通过CRC校验判断经过部分比特进行去除伪随机化的处理后的N比特是否正确,通过CRC校验的N比特构成已译码的N比特。
在一些实施例中,所述对译码后的N比特的部分K比特进行去除伪随机化的处理,可以包括:
根据所述译码后的N比特中的另外N-K比特对所述K比特的去除伪随机化的处理;或者,
根据所述译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的信息S对所述K比特的去除伪随机化的处理;或者,
根据所述译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的比特序列M对所述K比特的去除伪随机化的处理。
在一些实施例中,所述对译码后的N比特的部分K比特进行去除伪随机化的处理,可以包括:
对所述K比特使用一条K长的伪随机序列经行解扰处理。
在一些实施例中,所述对译码后的N比特的部分K比特进行去除伪随机化的处理,包括对译码后的N个比特中加扰的K比特进行解扰。其中解扰时的扰码的确定方法包括:
使用基于移位寄存器的伪随机序列发生器生成扰码,或者通过存储扰码的存储器或者查找表来确定扰码。
在一些实施例中,可以使用基于移位寄存器的伪随机序列发生器生成扰码时,伪随机序列发生器的初始状态可以根据译码后的N比特中的另外N-K比特确定,或者,
根据译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的信息S共同确定;或者
根据译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的比特序列M共同确定;
其中,所述发射侧与接收侧约定好的信息S包括以下至少之一:
系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息;
所述发射侧与接收侧约定好的比特序列M共同决定包括以下至少之一:
系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
在一些实施例中,可以通过在接收侧存储扰码查找表,基于扰码查找表查找扰码。例如,扰码查找表每个存储单元里存储的是一个K长的扰码,一共有2 N-K个存储单元,存储2 N-K个K长扰码,也就是说码查找表的寻址比特数是N-K个比特;或者,扰码查找表的一栏可以是N-K个比特,或是这N-K个比特映射得到的某个值或者某些值,另一栏则是K长的扰码,除了表格之外,也可以是某种映射规则,从N-K个比特或是由其产生的某些值到扰码本身或是扰码的一部分,最终的扰码可以采用这一部分的扰码进行某些操作得到,例如,扰码序列存储器或者查找表的寻址可以根据译码后的N比特中的另外N-K比特确定,或者,根据译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的信息S共同确定;或者,根据译码后的N比特中的另外N-K比特以及发射侧与接收 侧约定好的比特序列M共同确定。
在一些实施例中,所述方法还可以包括:
对恢复出的N比特,按照发射侧符号生成流程生成符号;
利用生成的符号进行信道估计;
根据估计出的信道进行干扰消除。
在一些实施例中,通过按照发射侧符号生成流程生成符号,并利用该符号进行信道估计,从而可以根据估计出的信道进行干扰消除,进而有效提升IoT(Internet of things,物联网)设备在干扰消除时信道估计的准确性,减少残余干扰,提升多用户检测性能。
其中,在一些实施例中,按照发射侧符号生成流程生成符号还可以包括:
对译码器成功译对的译码后的N个比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N;对所述d 1,d 2,...,d N进行编码。
当所述编码中包括前向纠错FEC编码时,所述对所述d 1,d 2,...,d N进行编码之后,包括:
根据所述FEC编码形成码字比特,对所述码字比特在星座调制后生成的符号;或者
根据所述FEC编码形成码字比特,对所述码字比特在多维调制后扩展映射得到相应的时频资源上;或者,根据所述FEC编码形成码字比特,对所述码字比特在多维调制后稀疏映射到相应的时频资源上;或者,根据所述FEC编码形成码字比特,对所述码字比特在比特重复后进行交织,并按照预设处理流程得到符号;或者
根据所述FEC编码形成码字比特,对所述码字比特在比特重复后进行加扰,并按照预设处理流程得到符号。
其中,对所述译码器成功译对的判定准则可以包括以下任一种:
通过循环冗余校验CRC校验、满足前向纠错FEC码字自身约束条件、通过循环冗余校验CRC校验同时满足前向纠错FEC码字自身约束条件。
实施例四
本公开实施例以发射侧和接收侧组成的收发系统为例,通过示例性描述发射侧(例如基站)和接收侧(例如UE、接收机)的流程,对上述实施例一至实施例三中方法进行进一步阐述。本公开实施例中发射侧的处理采用对所有信息比特在加入CRC(在一些特定的场景也可能没有CRC)之后产生的N长信息比特中取出N-K比特生成K长扰码,采用此K长扰码对K长信息比特进行扰码,与N-K长比特组合成N长信息比特经过部分加扰的信息比特再进行FEC编码,设定码率为r,则编码后的比特流长度为N/r。
如图6所示,对于未采用CRC的收发系统,接收机通过特定的规则判定用户得到正确译码,按照基站和UE预先约定的规则从译码后的N个比特中识别出N-K比特,然后根据这N-K比特生成K长扰码,然后用这K长扰码对K比特进行解扰,将解扰后的K比特和N长信息比特中未加扰的N-K比特采用与发射侧相同的规则组合成N比特。
如图7所示,对于采用CRC的收发系统,在CRC编码之前进行部分加扰的码字。译码器根据CRC判断译码正确。接收机按照基站和UE预先约定的规则,识别出N-K比特然后根据这N-K比特生成K长扰码,然后用这K长扰码对K比特进行解扰,将解扰后的K比特和N未加扰的N-K比特采用与发射侧相同的规则组合成N比特,其中将这N比特通过CRC检测,判决N比特确实被译码成功。
如图8所示,对于采用CRC的收发系统,在CRC编码之后进行部分加扰的码字,接收机可选地将满足码字自身约束俄后的比特中按照基站和UE预先约定的规则,识别出N-K比特然后根据这N-K比特生成K长扰码,然后用这K长扰码对K比特进行解扰,将解扰后的K比特和N未加扰的N-K比特采用与发射侧相同的规则组合成N比特,其中将这N比特通过CRC检测,判决N比特确实被译码成功。
实施例五
本公开实施例提供一种编码装置,如图9所示,所述装置包括:
处理模块10,用于对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N
编码模块12,用于对所述d 1,d 2,...,d N进行编码。
在一些实施例中,设所述b 1,b 2,...,b N中包含K比特
Figure PCTCN2019088816-appb-000083
和另外N-K比特
Figure PCTCN2019088816-appb-000084
所述d 1,d 2,...,d N中包含K比特
Figure PCTCN2019088816-appb-000085
和另外N-K比特
Figure PCTCN2019088816-appb-000086
所述处理模块10,具体用于将所述
Figure PCTCN2019088816-appb-000087
进行伪随机化处理生成所述
Figure PCTCN2019088816-appb-000088
将所述
Figure PCTCN2019088816-appb-000089
作为所述
Figure PCTCN2019088816-appb-000090
其中,将所述
Figure PCTCN2019088816-appb-000091
进行伪随机化处理生成所述
Figure PCTCN2019088816-appb-000092
的伪随机化处理由所述
Figure PCTCN2019088816-appb-000093
决定,或者,由所述
Figure PCTCN2019088816-appb-000094
与接收侧约定好的信息S共同决定,或者,由所述
Figure PCTCN2019088816-appb-000095
与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
在一些实施例中,设所述b 1,b 2,...,b N中包含K比特
Figure PCTCN2019088816-appb-000096
和另外N-K比特的
Figure PCTCN2019088816-appb-000097
所述d 1,d 2,...,d N中包含K比特
Figure PCTCN2019088816-appb-000098
和另外N-K比特的
Figure PCTCN2019088816-appb-000099
所述处理模块10,具体用于将所述
Figure PCTCN2019088816-appb-000100
进行伪随机化处理生成
Figure PCTCN2019088816-appb-000101
将所述
Figure PCTCN2019088816-appb-000102
使用与接收侧约定好的方式进行处理生成
Figure PCTCN2019088816-appb-000103
其中,将所述
Figure PCTCN2019088816-appb-000104
进行伪随机化处理生成所述
Figure PCTCN2019088816-appb-000105
的伪随机化处理由所述
Figure PCTCN2019088816-appb-000106
决定,或者,由所述
Figure PCTCN2019088816-appb-000107
决定,或者,由所述
Figure PCTCN2019088816-appb-000108
与接收侧约定好的信息S共同决定,或者,由所述
Figure PCTCN2019088816-appb-000109
与接收侧约定好的比特序列M共同决定,或者,由
Figure PCTCN2019088816-appb-000110
以及与接收侧约定好的信息S共同决定,或者,由
Figure PCTCN2019088816-appb-000111
以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
在一些实施例中,设所述b 1,b 2,...,b N中包含K比特
Figure PCTCN2019088816-appb-000112
和另外N-K比特的
Figure PCTCN2019088816-appb-000113
所述d 1,d 2,...,d N中包含K比特
Figure PCTCN2019088816-appb-000114
和另外N-K比特的
Figure PCTCN2019088816-appb-000115
所述处理模块10,具体用于使用K长伪随机序列c 1,c 2,...,c K,对所述
Figure PCTCN2019088816-appb-000116
进行加扰处理生成所述
Figure PCTCN2019088816-appb-000117
将所述
Figure PCTCN2019088816-appb-000118
作为
Figure PCTCN2019088816-appb-000119
其中,所述K长伪随机序列c 1,c 2,...,c K的生成由所述
Figure PCTCN2019088816-appb-000120
决定,或者,由所述
Figure PCTCN2019088816-appb-000121
与接收侧约定好的信息S共同决定,或者,由所述
Figure PCTCN2019088816-appb-000122
以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
在一些实施例中,设所述b 1,b 2,...,b N中包含K比特
Figure PCTCN2019088816-appb-000123
和另外N-K比特的
Figure PCTCN2019088816-appb-000124
所述d 1,d 2,...,d N中包含K比特
Figure PCTCN2019088816-appb-000125
和另外N-K比特的
Figure PCTCN2019088816-appb-000126
所述处理模块10,具体用于使用K长伪随机序列c 1,c 2,...,c K,对所述
Figure PCTCN2019088816-appb-000127
进行加扰处理生成所述
Figure PCTCN2019088816-appb-000128
将所述
Figure PCTCN2019088816-appb-000129
使用与接收侧约定好的方式进行处理生成所述
Figure PCTCN2019088816-appb-000130
其中所述K长伪随机序列c 1,c 2,...,c K的生成由所述
Figure PCTCN2019088816-appb-000131
决定,或者,由所述
Figure PCTCN2019088816-appb-000132
决定,或者,由所述
Figure PCTCN2019088816-appb-000133
与接收侧约定好的信息S共同决定,或者,由所述
Figure PCTCN2019088816-appb-000134
与接收侧约定好的比特序列M共同决定,或者,由所述
Figure PCTCN2019088816-appb-000135
与接收侧约定好的信息S共同决定,或者,由所述
Figure PCTCN2019088816-appb-000136
与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
在一些实施例中,所述与接收侧约定好的信息S可以包括以下至少之一:
系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息。
在一些实施例中,所述与接收侧约定好的比特序列M也可以包括以下至少之一:
系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
在一些实施例中,所述处理模块10在将所述
Figure PCTCN2019088816-appb-000137
使用与接收侧约定好的方式进行处理生成所述
Figure PCTCN2019088816-appb-000138
时,还具体用于以下至少之一:
使用与接收侧约定好的信息,对所述
Figure PCTCN2019088816-appb-000139
进行处理,生成所述
Figure PCTCN2019088816-appb-000140
所述与接收侧约定好的信息包括以下之一:系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息;
使用与接收侧约定好的比特序列,对所述
Figure PCTCN2019088816-appb-000141
进行处理,生成所述
Figure PCTCN2019088816-appb-000142
所述与接收侧约定好的比特序列包括以下之一:系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
在一些实施例中,所述前导和解调导频的相关信息可以包括以下一种:
前导根索引、循环移位序索引、解调导频根索引、解调导频循环移位序索引、解调参考信号梳DMRS Comb的范式和解调参考信号OCC范式。
在一些实施例中,所述编码包括前向纠错FEC编码和/或循环冗余校验CRC编码;当所述编码中包括前向纠错FEC编码时,所述编码模块12在对所述d 1,d 2,...,d N进行编码之后,还用于根据所述FEC编码形成码字比特,对所述码字比特进行调制后生成的调制符号进行扩展;或者,根据所述FEC编码形成码字比特,对所述码字比特在多维调制后扩展映射到相应的时频资源上;或者,根据所述FEC编码形成码字比特,对所述码字比特在多维调制后稀疏映射到相应的时频资源上;或者,根据所述FEC编码形成码字比特,对所述码字比特在比特重复后进行交织;或者,根据所述FEC编码形成码字比特,对所述码字比特在比特重复后进行加扰。
本公开实施例为实施例一和实施例二对应的装置实施例,具有相应的技术效果。
实施例六
本公开实施例提供一种译码装置,如图10所示,所述装置包括:
译码模块20,用于对编码的N比特进行译码;
去除模块22,用于对译码后的N比特的部分K比特进行去除伪随机化的处理,恢复出发射侧进行伪随机化处理前的N比特;其中K大于0且小于或等于N。
在一些实施例中,所述去除模块22对译码后的N比特的部分K比特进行去除伪随机化的处理时,具体用于根据所述译码后的N比特中的另外N-K比特确定对所述K比特的去除伪随机化的处理;或者,根据所述译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的信息S对所述K比特的去除伪随机化的处理;或者,根据所述译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的比特序列M对所述K比特的去除伪随机化的处理。
其中,所述发射侧与接收侧约定好的信息S可以包括以下至少之一:
系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息;
所述发射侧与接收侧约定好的比特序列M也可以包括以下至少之一:
系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
在一些实施例中,所述去除模块22对译码后的N比特的部分K比特进行去除伪随机化的处理时,具体用于对所述K比特使用一条K长的伪随机序列经行解扰处理。
在一些实施例中,所述装置还包括:
估计模块,用于对恢复出的N比特,按照发射侧符号生成流程生成符号;利用生成的符号进行信道估计;根据估计出的信道进行干扰消除。
本公开实施例为实施例三对应的装置实施例,具有相应的技术效果。
实施例七
本公开实施例提供一种发射设备,所述设备包括存储器和处理器;所述存储器存储有编码计算机程序,所述处理器可执行所述计算机程序,以实现如实施例一和实施例二中任意一项所述方法的步骤。
实施例八
本公开实施例提供一种接收设备,所述设备包括存储器和处理器;所述存储器存储有译码计算机程序,所述处理器可执行所述计算机程序,以实现如实施例三中任意一项所述方法的步骤。
实施例九
本公开实施例提供一种计算机存储介质,所述存储介质存储有编码计算机程序和/或译码计算机程序;
当所述编码计算机程序被至少一个处理器执行时,以实现如实施例一和实施例二中任意一项所述方法的步骤;
当所述译码计算机程序被至少一个处理器执行时,以实现如实施例三中任意一项所述方法的步骤。
本公开实施例中计算机可读存储介质可以是RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动硬盘、CD-ROM或者本领域已知的任何其他形式的存储介质。可以将一种存储介质藕接至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息;或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于专用集成电路中。
在此需要说明的是,在具体实现时,实施例七至实施例十可以参阅实施例一至实施例六,具有相应的技术效果。
以上所述的具体实施方式,对本公开的目的、技术方案和有益效果进行了进一步详细说明,所应理解的是,以上所述仅为本公开的具体实施方式而已,并不用于限定本公开的保护范围,凡在本公开的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本公开的保护范围之内。

Claims (32)

  1. 一种部分伪随机化处理方法,其中,所述方法包括:
    对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N
    对所述d 1,d 2,...,d N进行编码。
  2. 如权利要求1所述的方法,其中,所述对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N,包括:
    设所述b 1,b 2,...,b N中包含K比特
    Figure PCTCN2019088816-appb-100001
    和另外N-K比特
    Figure PCTCN2019088816-appb-100002
    所述d 1,d 2,...,d N中包含K比特
    Figure PCTCN2019088816-appb-100003
    和另外N-K比特
    Figure PCTCN2019088816-appb-100004
    将所述
    Figure PCTCN2019088816-appb-100005
    进行伪随机化处理生成所述
    Figure PCTCN2019088816-appb-100006
    将所述
    Figure PCTCN2019088816-appb-100007
    作为所述
    Figure PCTCN2019088816-appb-100008
    将所述
    Figure PCTCN2019088816-appb-100009
    进行伪随机化处理生成所述
    Figure PCTCN2019088816-appb-100010
    的伪随机化处理由所述
    Figure PCTCN2019088816-appb-100011
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100012
    以及与接收侧约定好的信息S共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100013
    以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
  3. 如权利要求1所述的方法,其中,所述对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N,包括:
    设所述b 1,b 2,...,b N中包含K比特
    Figure PCTCN2019088816-appb-100014
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100015
    所述d 1,d 2,...,d N中包含K比特
    Figure PCTCN2019088816-appb-100016
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100017
    将所述
    Figure PCTCN2019088816-appb-100018
    进行伪随机化处理生成
    Figure PCTCN2019088816-appb-100019
    将所述
    Figure PCTCN2019088816-appb-100020
    使用与接收侧约定好的方式进行处理生成
    Figure PCTCN2019088816-appb-100021
    将所述
    Figure PCTCN2019088816-appb-100022
    进行伪随机化处理生成所述
    Figure PCTCN2019088816-appb-100023
    的伪随机化处理由所述
    Figure PCTCN2019088816-appb-100024
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100025
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100026
    以及与接收侧约定好的信息S共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100027
    以及与接收侧约定好的比特序列M共同决定,或者,由
    Figure PCTCN2019088816-appb-100028
    以及与接收侧约定好的信息S共同决定,或者,由
    Figure PCTCN2019088816-appb-100029
    以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
  4. 如权利要求1所述的方法,其中,所述对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N,包括:
    设所述b 1,b 2,...,b N中包含K比特
    Figure PCTCN2019088816-appb-100030
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100031
    所述d 1,d 2,...,d N中包含K比特
    Figure PCTCN2019088816-appb-100032
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100033
    使用K长伪随机序列c 1,c 2,...,c K,对所述
    Figure PCTCN2019088816-appb-100034
    进行加扰处理生成所述
    Figure PCTCN2019088816-appb-100035
    将所述
    Figure PCTCN2019088816-appb-100036
    作为
    Figure PCTCN2019088816-appb-100037
    所述K长伪随机序列c 1,c 2,...,c K的生成由所述
    Figure PCTCN2019088816-appb-100038
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100039
    以及与接收侧约定好的信息S共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100040
    以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
  5. 如权利要求1所述的方法,其中,所述对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N,包括:
    设所述b 1,b 2,...,b N中包含K比特
    Figure PCTCN2019088816-appb-100041
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100042
    所述d 1,d 2,...,d N中包含K比特
    Figure PCTCN2019088816-appb-100043
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100044
    使用K长伪随机序列c 1,c 2,...,c K,对所述
    Figure PCTCN2019088816-appb-100045
    进行加扰处理生成所述
    Figure PCTCN2019088816-appb-100046
    将所述
    Figure PCTCN2019088816-appb-100047
    使用与接收侧约定好的方式进行处理生成所述
    Figure PCTCN2019088816-appb-100048
    所述K长伪随机序列c 1,c 2,...,c K的生成由所述
    Figure PCTCN2019088816-appb-100049
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100050
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100051
    以及与接收侧约定好的信息S共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100052
    以及与接收侧约定好的比特序列M共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100053
    以及与接收侧约定好的信息S共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100054
    以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
  6. 如权利要求2~5中任意一项所述的方法,其中,所述与接收侧约定好的信息S包括以下至少之一:
    系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息。
  7. 如权利要求2~5中任意一项所述的方法,其中,所述与接收侧约定好的比特序列M包括以下至少之一:
    系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
  8. 如权利要求3或5所述的方法,其中,所述将所述
    Figure PCTCN2019088816-appb-100055
    使用与接收侧约定好的方式进行处理生成所述
    Figure PCTCN2019088816-appb-100056
    包括以下至少之一:
    使用与接收侧约定好的信息,对所述
    Figure PCTCN2019088816-appb-100057
    进行处理,生成所述
    Figure PCTCN2019088816-appb-100058
    所述与接收侧约定好的信息包括以下之一:系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息;
    使用与接收侧约定好的比特序列,对所述
    Figure PCTCN2019088816-appb-100059
    进行处理,生成所述
    Figure PCTCN2019088816-appb-100060
    所述与接收侧约定好的比特序列包括以下之一:系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
  9. 如权利要求5~7中任意一项所述的方法,其中,所述前导和解调导频的相关信息包括以下一种:
    前导根索引、循环移位序索引、解调导频根索引、解调导频循环移位序索引、解调参考信号梳DMRS Comb的范式和解调参考信号OCC范式。
  10. 如权利要求1-5中任意一项所述的方法,其中,所述编码包括前向纠错FEC编码和/或循环冗余校验CRC编码。
  11. 如权利要求10所述的方法,其中,当所述编码中包括前向纠错FEC编码时,所述对所述d 1,d 2,...,d N进行编码之后,包括:
    根据所述FEC编码形成码字比特,对所述码字比特进行调制后生成的调制符号进行扩展;或者
    根据所述FEC编码形成码字比特,对所述码字比特在多维调制后扩展映射到相应的时频资源上;或者
    根据所述FEC编码形成码字比特,对所述码字比特在多维调制后稀疏映射到相应的时频资源上;或者
    根据所述FEC编码形成码字比特,对所述码字比特在比特重复后进行交织;或者
    根据所述FEC编码形成码字比特,对所述码字比特在比特重复后进行加扰。
  12. 一种部分伪随机化处理方法,其中,所述方法包括:
    对编码的N比特进行译码;
    对译码后的N比特的部分K比特进行去除伪随机化的处理,恢复出发射侧进行伪随机化处理前的N比特;其中K大于0且小于或等于N。
  13. 如权利要求12所述的方法,其中,所述对译码后的N比特的部分K比特进行去除伪随机化的处理,包括:
    根据所述译码后的N比特中的另外N-K比特对所述K比特的去除伪随机化的处理;或者,
    根据所述译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的信息S对所述K比特的去除伪随机化的处理;或者,
    根据所述译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的比特序列M对所述K比特的去除伪随机化的处理;
    所述发射侧与接收侧约定好的信息S包括以下至少之一:
    系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息;
    所述发射侧与接收侧约定好的比特序列M包括以下至少之一:
    系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
  14. 如权利要求12所述的方法,其中,所述对译码后的N比特的部分K比特进行去除伪随机化的处理,包括:
    对所述K比特使用一条K长的伪随机序列经行解扰处理。
  15. 如权利要求12-14中任意一项所述的方法,其中,所述方法还包括:
    对恢复出的N比特,按照发射侧符号生成流程生成符号;
    利用生成的符号进行信道估计;
    根据估计出的信道进行干扰消除。
  16. 一种编码装置,其中,所述装置包括:
    处理模块,用于对N比特b 1,b 2,...,b N的部分比特进行伪随机化处理,生成新的N比特d 1,d 2,...,d N
    编码模块,用于对所述d 1,d 2,...,d N进行编码。
  17. 如权利要求16所述的装置,其中,设所述b 1,b 2,...,b N中包含K比特
    Figure PCTCN2019088816-appb-100061
    和另外N-K比特
    Figure PCTCN2019088816-appb-100062
    所述d 1,d 2,...,d N中包含K比特
    Figure PCTCN2019088816-appb-100063
    和另外N-K比特
    Figure PCTCN2019088816-appb-100064
    所述处理模块,具体用于将所述
    Figure PCTCN2019088816-appb-100065
    进行伪随机化处理生成所述
    Figure PCTCN2019088816-appb-100066
    将所述
    Figure PCTCN2019088816-appb-100067
    作为所述
    Figure PCTCN2019088816-appb-100068
    其中,将所述
    Figure PCTCN2019088816-appb-100069
    进行伪随机化处理生成所述
    Figure PCTCN2019088816-appb-100070
    的伪随机化处理由所述
    Figure PCTCN2019088816-appb-100071
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100072
    以及与接收侧约定好的信息S共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100073
    以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
  18. 如权利要求16所述的装置,其中,设所述b 1,b 2,...,b N中包含K比特
    Figure PCTCN2019088816-appb-100074
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100075
    所述d 1,d 2,...,d N中包含K比特
    Figure PCTCN2019088816-appb-100076
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100077
    所述处理模块,具体用于将所述
    Figure PCTCN2019088816-appb-100078
    进行伪随机化处理生成
    Figure PCTCN2019088816-appb-100079
    将所述
    Figure PCTCN2019088816-appb-100080
    使用以及与接收侧约定好的方式进行处理生成
    Figure PCTCN2019088816-appb-100081
    其中,将所述
    Figure PCTCN2019088816-appb-100082
    进行伪随机化处理生成所述
    Figure PCTCN2019088816-appb-100083
    的伪随机化处理由所述
    Figure PCTCN2019088816-appb-100084
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100085
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100086
    以及与接收侧约定好的信息S共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100087
    以及与接收侧约定好的比特序列M共同决定,或者,由
    Figure PCTCN2019088816-appb-100088
    以及与接收侧约定好的信息S共同决定,或者,由
    Figure PCTCN2019088816-appb-100089
    以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于等于N。
  19. 如权利要求16所述的装置,其中,设所述b 1,b 2,...,b N中包含K比特
    Figure PCTCN2019088816-appb-100090
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100091
    所述d 1,d 2,...,d N中包含K比特
    Figure PCTCN2019088816-appb-100092
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100093
    所述处理模块,具体用于使用K长伪随机序列c 1,c 2,...,c K,对所述
    Figure PCTCN2019088816-appb-100094
    进行加扰处理生成所述
    Figure PCTCN2019088816-appb-100095
    将所述
    Figure PCTCN2019088816-appb-100096
    作为
    Figure PCTCN2019088816-appb-100097
    其中,所述K长伪随机序列c 1,c 2,...,c K的生成由所述
    Figure PCTCN2019088816-appb-100098
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100099
    以及与接收侧约定好的信息S共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100100
    以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
  20. 如权利要求16所述的装置,其中,设所述b 1,b 2,...,b N中包含K比特
    Figure PCTCN2019088816-appb-100101
    和另外N-K比特的
    Figure PCTCN2019088816-appb-100102
    所述d 1,d 2,...,d N中包含K比特
    Figure PCTCN2019088816-appb-100103
    和另外N-K 比特的
    Figure PCTCN2019088816-appb-100104
    所述处理模块,具体用于使用K长伪随机序列c 1,c 2,...,c K,对所述
    Figure PCTCN2019088816-appb-100105
    进行加扰处理生成所述
    Figure PCTCN2019088816-appb-100106
    将所述
    Figure PCTCN2019088816-appb-100107
    使用与接收侧约定好的方式进行处理生成所述
    Figure PCTCN2019088816-appb-100108
    其中所述K长伪随机序列c 1,c 2,...,c K的生成由所述
    Figure PCTCN2019088816-appb-100109
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100110
    决定,或者,由所述
    Figure PCTCN2019088816-appb-100111
    以及与接收侧约定好的信息S共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100112
    以及与接收侧约定好的比特序列M共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100113
    以及与接收侧约定好的信息S共同决定,或者,由所述
    Figure PCTCN2019088816-appb-100114
    以及与接收侧约定好的比特序列M共同决定;其中K大于0且小于或等于N。
  21. 如权利要求17~20中任意一项所述的装置,其中,所述与接收侧约定好的信息S包括以下至少之一:
    系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息。
  22. 如权利要求17~20中任意一项所述的装置,其中,所述与接收侧约定好的比特序列M包括以下至少之一:
    系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
  23. 如权利要求18或20所述的方法,其中,所述处理模块在将所述
    Figure PCTCN2019088816-appb-100115
    使用与接收侧约定好的方式进行处理生成所述
    Figure PCTCN2019088816-appb-100116
    时,还具体用于以下至少之一:
    使用与接收侧约定好的信息,对所述
    Figure PCTCN2019088816-appb-100117
    进行处理,生成所述
    Figure PCTCN2019088816-appb-100118
    所述与接收侧约定好的信息包括以下之一:系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息;
    使用与接收侧约定好的比特序列,对所述
    Figure PCTCN2019088816-appb-100119
    进行处理,生成所述
    Figure PCTCN2019088816-appb-100120
    所述与接收侧约定好的比特序列包括以下之一:系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
  24. 如权利要求20~22中任意一项所述的方法,其中,所述前导和解调导频的相关信息包括以下一种:
    前导根索引、循环移位序索引、解调导频根索引、解调导频循环移位序索引、解调参考信号梳DMRS Comb的范式和解调参考信号OCC范式。
  25. 如权利要求16-20中任意一项所述的装置,其中,所述编码包括前向纠错FEC编码和/或循环冗余校验CRC编码;当所述编码中包括前向纠错FEC编码时,所述编码模块在对所述d 1,d 2,...,d N进行编码之后,还用于根据所述FEC编码形成码字比特,对所述码字比特进行调制后生成的调制符号进行扩展;或者,根据所述FEC编码形成码字比 特,对所述码字比特在多维调制扩展后映射到相应的时频资源上;或者,根据所述FEC编码形成码字比特,对所述码字比特在多维调制后稀疏映射到相应的时频资源上;或者,根据所述FEC编码形成码字比特,对所述码字比特在比特重复后进行交织;或者,根据所述FEC编码形成码字比特,对所述码字比特在比特重复后进行加扰。
  26. 一种译码装置,其中,所述装置包括:
    译码模块,用于对编码的N比特进行译码;
    去除模块,用于对译码后的N比特的部分K比特进行去除伪随机化的处理,恢复出发射侧进行伪随机化处理前的N比特;其中K大于0且小于或等于N。
  27. 如权利要求26所述的装置,其中,所述去除模块对译码后的N比特的部分K比特进行去除伪随机化的处理时,具体用于根据所述译码后的N比特中的另外N-K比特确定对所述K比特的去除伪随机化的处理;或者,根据所述译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的信息S对所述K比特的去除伪随机化的处理;或者,根据所述译码后的N比特中的另外N-K比特以及发射侧与接收侧约定好的比特序列M对所述K比特的去除伪随机化的处理;
    所述发射侧与接收侧约定好的信息S包括以下至少之一:
    系统帧号、传输时隙号、小区标识、扇区标识、波束标识、前导和解调导频的相关信息、一个约定好的信息;
    所述发射侧与接收侧约定好的比特序列M包括以下至少之一:
    系统帧号决定的比特序列、传输时隙号决定的比特序列、小区标识决定的比特序列、扇区标识决定的比特序列、波束标识决定的比特序列、前导和解调导频的相关信息决定的比特序列、一个约定好的比特序列。
  28. 如权利要求27所述的装置,其中,所述去除模块对译码后的N比特的部分K比特进行去除伪随机化的处理时,具体用于对所述K比特使用一条K长的伪随机序列经行解扰处理。
  29. 如权利要求26-28中任意一项所述的装置,其中,所述装置还包括:
    估计模块,用于对恢复出的N比特,按照发射侧符号生成流程生成符号;利用生成的符号进行信道估计;根据估计出的信道进行干扰消除。
  30. 一种发射设备,其中,所述设备包括存储器和处理器;所述存储器存储有编码计算机程序,所述处理器可执行所述计算机程序,以实现如权利要求1-11中任意一项所述方法的步骤。
  31. 一种接收设备,其中,所述设备包括存储器和处理器;所述存储器存储有译码计算机程序,所述处理器可执行所述计算机程序,以实现如权利要求12-15中任意一项所述方法的步骤。
  32. 一种计算机存储介质,其中,所述存储介质存储有编码计算机程序和/或译码计算机程序;
    当所述编码计算机程序被至少一个处理器执行时,以实现如权利要求1-11中任意一项所述方法的步骤;
    当所述译码计算机程序被至少一个处理器执行时,以实现如权利要求12-15中任意一项所述方法的步骤。
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