WO2018214761A1 - 一种比特映射的方法及装置 - Google Patents

一种比特映射的方法及装置 Download PDF

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Publication number
WO2018214761A1
WO2018214761A1 PCT/CN2018/086577 CN2018086577W WO2018214761A1 WO 2018214761 A1 WO2018214761 A1 WO 2018214761A1 CN 2018086577 W CN2018086577 W CN 2018086577W WO 2018214761 A1 WO2018214761 A1 WO 2018214761A1
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Prior art keywords
symbol
modulation symbols
pbch
data
modulation
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PCT/CN2018/086577
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English (en)
French (fr)
Inventor
黄煌
颜矛
高宽栋
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华为技术有限公司
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Publication of WO2018214761A1 publication Critical patent/WO2018214761A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for bit mapping.
  • the current standard has occupied two time-frequency resources of Orthogonal Frequency Division Multiplexing (OFDM) symbols through a physical broadcast channel (PBCH).
  • OFDM Orthogonal Frequency Division Multiplexing
  • PBCH physical broadcast channel
  • Embodiments of the present application provide a method and apparatus for bit mapping, and in particular, a method for mapping data bits to a time-frequency resource of a PBCH.
  • a first aspect provides a method for bit mapping, comprising: obtaining N1 first modulation symbols and N2 second modulation symbols; wherein, N1 and N2 are both greater than or equal to 1; and the N1 first modulation symbols are Mapping the first portion of the first symbol of the physical broadcast channel PBCH and the first portion or the second portion of the second symbol of the PBCH, mapping the N2 second modulation symbols to the first symbol of the PBCH And a second portion of the PBCH and a first portion or a second portion of the second symbol of the PBCH; transmitting a first symbol of the PBCH and a second symbol of the PBCH.
  • N1 first modulation symbols and N2 second modulation symbols are obtained, including:
  • the M1 and M2 bit data are separately modulated to obtain N1 first modulation symbols and N2 second modulation symbols.
  • N1 first modulation symbols and N2 second modulation symbols are obtained, including:
  • the bit data to be mapped is modulated into M modulation symbols, and the M modulation symbols are divided into two parts, the first part is N1 first modulation symbols, and the second part is N2 second modulation symbols.
  • the M1 is less than 512 and the M2 is less than 512.
  • the M1 is equal to the M2.
  • mapping the first modulation symbol to the first part of the first PBCH symbol and the first part or the second part of the second PBCH symbol specifically including: A modulation symbol is mapped to the first portion of the first PBCH symbol; the remaining 1/2 of the first modulation symbol is mapped to the first portion or the second portion of the first PBCH symbol.
  • mapping the second modulation symbol to the second part of the first PBCH symbol and the first part or the second part of the second PBCH symbol specifically including: The second modulation symbol is mapped to the second portion of the first PBCH symbol; the remaining 1/2 of the second modulation symbol is mapped to the first portion or the second portion of the second PBCH symbol.
  • the first portion includes a plurality of consecutive resource elements RE.
  • the second portion includes a plurality of consecutive resource elements RE.
  • the first portion includes 144 resource elements RE.
  • the second portion includes 144 resource elements RE.
  • the method further includes: dividing the M-bit data into two parts to obtain M1 and M2 bit data; the M-bit data is bit data obtained after channel coding and scrambling.
  • the modulation symbols are quadrature phase shift keying QPSK symbols.
  • a second aspect provides a method for bit mapping, comprising: receiving a first symbol and a second symbol of a physical broadcast channel PBCH; wherein a first portion of the first symbol and a second PBCH symbol The first portion or the second portion includes a first modulation symbol, the second portion of the first symbol and the first portion or the second portion of the second symbol include a second modulation symbol, the first modulation symbol and The number of two modulation symbols is greater than or equal to 1; demodulating the first modulation symbol and the second modulation symbol, respectively.
  • the method further includes: obtaining demodulated data of M1 and M2 bits, combining the demodulated data of the M1 and M2 bits, to obtain M demodulated data; and demodulating the M Data descrambling and decoding, wherein both M1 and M2 are greater than or equal to one.
  • the M1 is less than 512 and the M2 is less than 512.
  • the M1 is equal to the M2.
  • the first portion of the first symbol includes 1/2 of the first modulation symbol
  • the first portion or the second portion of the second symbol includes the remaining 1/2 of The first modulation symbol
  • the second portion of the first symbol includes 1/2 of the second modulation symbol, and the second portion or the first portion of the second symbol includes the remaining 1/2 The second modulation symbol.
  • the first portion includes a plurality of consecutive resource elements RE.
  • the second portion includes a plurality of consecutive resource elements RE.
  • the first portion includes 144 resource elements RE.
  • the second portion includes 144 resource elements RE.
  • a base station including:
  • a processing unit configured to obtain N1 first modulation symbols and N2 second modulation symbols; wherein, N1 and N2 are both greater than or equal to 1;
  • the processing unit is configured to map the N1 first modulation symbols to a first part of a first symbol of a physical broadcast channel PBCH and a second part of a second symbol of the PBCH, where the N2 a second modulation symbol mapped to a second portion of a first symbol of the PBCH and a first portion of a second symbol of the PBCH;
  • a transceiver unit transmitting a first symbol of the PBCH and a second symbol of the PBCH.
  • the processing unit is configured to separately modulate M1 and M2 bit data to obtain N1 first modulation symbols and N2 second modulation symbols.
  • the processing unit is configured to: modulate bit data to be mapped into M modulation symbols, and divide M modulation symbols into two parts, where the first part is N1 first modulation symbols, and the second part is It is N2 second modulation symbols.
  • the M1 is less than 512 and the M2 is less than 512.
  • the M1 is equal to the M2.
  • the processing unit is specifically configured to map the first modulation symbol of 1/2 to the first part of the first PBCH symbol; and the first modulation of the remaining 1/2 The symbol is mapped to the first part or the second part of the second PBCH symbol.
  • the processing unit is specifically configured to map the second modulation symbol of 1/2 to the second portion of the first PBCH symbol; and to divide the remaining 1/2 of the second modulation.
  • the symbol is mapped to the first part or the second part of the second PBCH symbol.
  • the first portion includes a plurality of consecutive resource elements RE.
  • the second portion includes a plurality of consecutive resource elements RE.
  • the first portion includes 144 resource elements RE.
  • the second portion includes 144 resource elements RE.
  • a terminal including:
  • a transceiver unit configured to receive a first symbol and a second symbol of the physical broadcast channel PBCH; wherein the first portion of the first symbol and the first portion or the second portion of the second PBCH symbol include the first a modulation symbol, the second part of the first symbol and the first part or the second part of the second symbol comprise a second modulation symbol, the number of the first modulation symbol and the second modulation symbol being greater than or equal to 1 ;
  • a processing unit configured to demodulate the first modulation symbol and the second modulation symbol, respectively.
  • the processing unit is configured to obtain demodulated data of M1 and M2 bits, combine the demodulated data of the M1 and M2 bits, and obtain M demodulated data; for the M Demodulation data descrambling and decoding, wherein both M1 and M2 are greater than or equal to one.
  • the M1 is less than 512 and the M2 is less than 512.
  • the M1 is equal to the M2.
  • the first portion of the first symbol includes 1/2 of the first modulation symbol
  • the second portion of the second symbol includes the remaining 1/2 of the first portion Modulation symbol
  • the second portion of the first symbol includes 1/2 of the second modulation symbol, and the first portion of the second symbol includes the remaining 1/2 of the second portion Modulation symbol.
  • the first portion includes a plurality of consecutive resource elements RE.
  • the second portion includes a plurality of consecutive resource elements RE.
  • the first portion includes 144 resource elements RE.
  • the second portion includes 144 resource elements RE.
  • a base station comprising a processor, a memory, a transceiver, and a bus, wherein the memory stores code and data, the processor, the memory and the transceiver are connected by a bus, and the processor runs the code in the memory to cause the base station to execute
  • a terminal comprising a processor, a memory, a transceiver, and a bus, wherein the memory stores code and data, the processor, the memory and the transceiver are connected by a bus, and the processor runs the code in the memory to cause the terminal to execute
  • the method provided by any of the possible implementations of the second aspect or the second aspect above.
  • a further aspect of the present application provides a system comprising a base station and a terminal; wherein the base station is a base station provided by the above aspects, and/or the terminal is provided by the above aspects.
  • Yet another aspect of the present application provides a computer readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the demodulation reference signal sequence provided by the above aspects A generation method, or a demodulation reference signal sequence mapping method, or a demodulation reference signal sequence indication method.
  • Yet another aspect of the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods provided by the various aspects described above.
  • the method provided by the embodiments of the present invention can be applied to an NR system.
  • a further technical effect is that the solution provided by the embodiment of the present invention can resist frequency selectivity, and the data of the PBCH of the first modulation symbol adopts the first part of the first symbol and the first part of the second symbol, both of which are located in the low frequency.
  • the data of the PBCH of the first modulation symbol uses the second part of the first symbol and the second part of the second symbol, both of which are located at a high frequency, and when the high frequency attenuation performance is relatively large, the low frequency data can be utilized.
  • Demodulation of PBCH data when the low-frequency attenuation performance is relatively large, the high-frequency data can be used to demodulate the PBCH data, thereby achieving the purpose of resisting frequency selectivity.
  • FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • 2A is a flowchart of a data mapping method according to an embodiment of the present application.
  • 2B is a flowchart of a data mapping method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of data mapping provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • the technical solution provided by the present application can be applied to various communication systems using beam technologies.
  • the existing communication system uses beam technology, 5G communication system, future evolution system or multiple communication fusion systems, and the like.
  • M2M machine to machine
  • eMBB enhanced mobile broadband
  • uRLLC ultra high reliability and ultra low latency communication
  • mMTC massive machine type communication
  • These scenarios may include, but are not limited to, a communication scenario between the terminal and the terminal, a communication scenario between the base station and the base station, a communication scenario between the base station and the terminal, and the like.
  • the technical solution provided by the embodiment of the present application can also be applied to a scenario between a terminal and a terminal in a 5G communication system, or
  • FIG. 1 shows a schematic diagram of a communication system that can include at least one base station 100 (only one shown) and one or more terminals 200 connected to base station 100.
  • Base station 100 can be a device that can communicate with terminal 200.
  • the base station 100 can be a relay station or an access point or the like.
  • the base station 100 may be a base transceiver station (BTS) in a global system for mobile communication (GSM) or a code division multiple access (CDMA) network, or may be a wideband code.
  • the NB (NodeB) in the wideband code division multiple access (WCDMA) may also be an eNB or an eNodeB (evolutional NodeB) in LTE.
  • the base station 100 may also be a wireless controller in a cloud radio access network (CRAN) scenario.
  • the base station 100 may also be a network device in a 5G network or a network device in a future evolved network; it may also be a wearable device or an in-vehicle device or the like.
  • the terminal 200 may be a user equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a terminal, a wireless communication device, a UE proxy, or UE device, etc.
  • the access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the present application is applied.
  • the communication system includes a base station 101 and a user equipment (UE) 102.
  • UE user equipment
  • the base station 101 has a scheduling function of a shared channel, and has a function of establishing a scheduling based on a history of packet data transmitted to the terminal 102.
  • scheduling when a plurality of terminals 102 share transmission resources, a mechanism is needed to effectively allocate the physical layer. Resources to obtain statistical multiplexing gain.
  • the terminal 102 has a function of transmitting and receiving data through a communication channel established with the base station 101.
  • the terminal 102 performs transmission or reception processing of the shared channel based on the information transmitted through the scheduling control channel.
  • the terminal 102 may be a mobile phone, a tablet computer, a computer, a portable terminal, or the like, and the types of the terminals 102 may be the same or different.
  • the base station 101 and the terminal 102 perform data reception and transmission through a communication channel, which may be a wireless communication channel, and in the wireless communication channel, at least a shared channel and a scheduling control channel exist, and the shared channel is for transmitting and receiving packets. And shared among multiple UEs 102, the scheduling control channel is used to transmit the allocation of the shared channel, and the corresponding scheduling result and the like.
  • a communication channel which may be a wireless communication channel, and in the wireless communication channel, at least a shared channel and a scheduling control channel exist, and the shared channel is for transmitting and receiving packets.
  • the scheduling control channel is used to transmit the allocation of the shared channel, and the corresponding scheduling result and the like.
  • FIG. 2A is a flowchart of a data mapping method 200 according to an embodiment of the present application. Referring to FIG. 2A, the method 200 includes the following steps.
  • Step 201 Obtaining N1 first modulation symbols and N2 second modulation symbols; wherein, M1 and M2 are both greater than or equal to 1, and the number of the first modulation symbols and the second modulation symbols is greater than or equal to 1;
  • Step 202 Mapping the N1 first modulation symbols to a first part of a first symbol of a physical broadcast channel PBCH and a second part of a second symbol of the PBCH, and mapping the N2 second modulation symbols a second portion of a first symbol of the PBCH and a first portion of a second symbol of the PBCH;
  • Step 203 Send a first symbol of the PBCH and a second symbol of the PBCH.
  • Step 204 Receive a first symbol and a second symbol of a physical broadcast channel PBCH, where the first part of the first symbol and the second part of the second symbol comprise N1 first modulation symbols.
  • the second part of the first symbol and the first part of the second symbol comprise N2 second modulation symbols, the N1, N2 being greater than or equal to 1;
  • Step 205 Demodulate the N1 first modulation symbols and the N2 second modulation symbols.
  • N1 first modulation symbols and N2 second modulation symbols are obtained, which may be:
  • the M1 and M2 bit data are separately modulated to obtain N1 first modulation symbols and N2 second modulation symbols.
  • the method 200 further includes:
  • the M bits are divided into two parts, and M1 and M2 bit data are obtained.
  • the M bit data may be channel coded data, and the M bit data may also be channel coded and scrambled data.
  • N1 first modulation symbols and N2 second modulation symbols are obtained, which may be:
  • the bit data to be mapped is modulated into M modulation symbols, and the M modulation symbols are divided into two parts, the first part is N1 first modulation symbols, and the second part is N2 second modulation symbols.
  • M1 and M2 are equal, both being 1/2 M bits.
  • the method 200 further includes:
  • mapping the N1 first modulation symbols to a first part of a first symbol of a physical broadcast channel PBCH and a second part of a second symbol of the PBCH may have different interpretations.
  • the first explanation is:
  • the mapped N1 first modulation symbols are identical, that is, the N1 first modulation symbols are first mapped to the first portion of the first PBCH symbol, and then the N1 symbols are used. Maps to the second part of the second PBCH symbol.
  • the second explanation is: N1 first modulation symbols are divided into two parts, the first part is mapped to the first part of the first PBCH symbol, and the second part is mapped to the second part of the second PBCH symbol. That is, N1 symbols are mapped to two PBCH symbols, respectively.
  • N1 symbols are mapped to two PBCH symbols, respectively.
  • mapping the N2 second modulation symbols to the second part of the first symbol of the PBCH and the first part of the second symbol of the PBCH may also have two explanations. Both of these explanations apply to the present invention.
  • the method of bit mapping provided by the embodiment of the present invention may bring a frequency diversity gain.
  • FIG. 2B is a flowchart of a data mapping method 200 according to an embodiment of the present application. Referring to FIG. 2B, the method 200 includes the following steps.
  • Step 201 Obtaining N1 first modulation symbols and N2 second modulation symbols; wherein, N1 and N2 are both greater than or equal to 1;
  • Step 202 Map the N1 first modulation symbols to a first part of a first symbol of a physical broadcast channel PBCH and a first part of a second symbol of the PBCH, and map the N2 second modulation symbols to a second portion of the first symbol of the PBCH and a second portion of the second symbol of the PBCH;
  • Step 203 Send a first symbol of the PBCH and a second symbol of the PBCH.
  • Step 204 Receive a first symbol and a second symbol of a physical broadcast channel PBCH, where the first part of the first symbol and the first part of the second symbol comprise N1 first modulation symbols, The second part of the first symbol and the second part of the second symbol comprise N2 second modulation symbols, the N1, N2 being greater than or equal to 1;
  • Step 205 Demodulate the N1 first modulation symbols and the N2 second modulation symbols.
  • mapping the N1 first modulation symbols to the first part of the first symbol of the physical broadcast channel PBCH and the first part of the second symbol of the PBCH may have different interpretations.
  • the first explanation is:
  • the mapped N1 first modulation symbols are identical, that is, the N1 first modulation symbols are first mapped to the first portion of the first PBCH symbol, and then the N1 symbols are used. Maps to the first part of the second PBCH symbol.
  • the second explanation is: N1 first modulation symbols are divided into two parts, the first part is mapped to the first part of the first PBCH symbol, and the second part is mapped to the first part of the second PBCH symbol. That is, N1 symbols are mapped to two PBCH symbols, respectively.
  • N1 symbols are mapped to two PBCH symbols, respectively.
  • mapping the N2 second modulation symbols to the second part of the first symbol of the PBCH and the second part of the second symbol of the PBCH may also have two explanations. Both of these explanations apply to the present invention.
  • the N1 first modulation symbols and the N2 second modulation symbols are obtained, and the M1 and M2 bit data may be respectively modulated, and the N1 first modulation symbols and the N2 second modulation symbols are respectively obtained.
  • the M bits of data are directly modulated into N modulation symbols, and the N modulation symbols are divided into two parts, the first part being N1 modulation symbols and the second part being N2 modulation symbols. It is also possible to divide the M bits into M1 and M2 bit data, respectively modulate the M1 and M2 bit data, and respectively obtain N1 first modulation symbols and N2 second modulation symbols.
  • M1 bits and M2 bits are respectively interleaved by different interleavers.
  • the N1 first modulation symbols and the N2 second modulation symbols are respectively interleaved by different interleavers and then mapped.
  • the N1 first modulation symbols and the N2 second modulation symbols are respectively mapped to resources according to different frequency hopping modes.
  • a further beneficial effect is: anti-frequency selectivity, the data of the PBCH of the first modulation symbol adopts a first part of the first symbol and a first part of the second symbol, both parts are located at a low frequency, the PBCH of the first modulation symbol
  • the data uses the second part of the first symbol and the second part of the second symbol, both of which are located at high frequencies.
  • the high frequency attenuation performance is relatively large, the low frequency data can be used to demodulate the PBCH data when the low frequency is attenuated.
  • the high-frequency data can be used to demodulate the PBCH data, thereby achieving the purpose of anti-frequency selectivity.
  • FIG. 3 To further illustrate an embodiment of the invention, as shown in FIG. 3:
  • the current NR standard basically determines that the broadcast channel occupies 2 symbols of time-frequency resources. As shown in Figures 3(a) to (d), the abscissa of each subgraph represents time resources, and the ordinate represents frequency resources, for example, the left side. For the first symbol, there is a second symbol on the right side, and 288 subcarriers are taken as an example in the vertical direction, and are marked as 0 to 287. It should be understood that 288 subcarriers are only examples, and may be other numbers of subcarriers.
  • the M bits are mapped onto the symbols of the two PBCHs, and there are various implementations, for example, according to the scheme of FIG. 3(c):
  • the X-bit modulated data is mapped onto the 2 symbols of the PBCH.
  • mapping method shown in FIG. 3(c) the principle is to use sequential mapping or reverse mapping.
  • the modulation data of Mmod1 is mapped to the first symbol, and the modulation data of Mmod2 is mapped to the second symbol.
  • the scheme of FIG. 3(b) and FIG. 3(c) is to sequentially map PBCH modulated data to a frequency resource position from a low frequency to a high frequency or a frequency resource map from a high frequency to a low frequency, and the modulation data of Mmod1 occupies the entire PBCH. bandwidth.
  • This kind of mapping method has poor anti-frequency selection performance when transmitting PBCH.
  • the attenuation of PBCH of higher frequency or lower frequency is larger, the PBCH data acceptance performance of higher or lower frequency part is worse, resulting in Part of the PBCH data cannot be demodulated.
  • the data of M bits is divided into two parts, and the bit data of M1 and M2 is obtained, which is not a mandatory step.
  • the channel coded bit data is 2 copies
  • the first part may be referred to as M1 bit data
  • the second part is referred to as M2 bit data.
  • the bit data to be mapped before encoding may be interleaved (English: interleave) or hopping mapping, wherein the frequency hopping mapping may be in the prior art. Any existing frequency hopping.
  • the data of M bits is divided into two parts, and the bit data of M1 and M2 is obtained, which is not a mandatory step.
  • the channel coded bit data is 2 copies, the first part may be referred to as M1 bit data, and the second part is referred to as M2 bit data.
  • bit data to be mapped before encoding may be interleaved (English: interleave) or hopping mapping, wherein the frequency hopping mapping may be in the prior art. Any existing frequency hopping.
  • the methods shown in Figures 3(a) and (d) are resistant to frequency selectivity, and the data of the PBCH of the first modulation symbol uses the first portion of the first symbol and the first portion of the second symbol, both of which are at low frequencies.
  • the data of the PBCH of the first modulation symbol uses the second part of the first symbol and the second part of the second symbol, both of which are located at a high frequency, and when the high frequency attenuation performance is relatively large, the low frequency data can be utilized.
  • Demodulation of PBCH data when the low-frequency attenuation performance is relatively large, the high-frequency data can be used to demodulate the PBCH data, thereby achieving the purpose of resisting frequency selectivity.
  • the foregoing modulation mode may be a modulation mode existing in the prior art, for example, QPSK, BPSK, and QAM.
  • the modulated data when the modulated data is mapped, it is mapped to a time-frequency resource other than a demodulation reference signal (DMRS) of the PBCH.
  • DMRS demodulation reference signal
  • mapping the modulation data mentioned in the present invention resources that are not mapped to the DMRS should be selected.
  • the PBCH has a total of 288 subcarriers, and the modulated data may occupy only a part of the subcarriers.
  • M1 and M2 may be unequal or equal.
  • the modulated data of Mmod1 is mapped by the first interleaver, and the modulated data of Mmod2 is mapped by the second interleaver, and the two interleavers are different.
  • the first frequency hopping mode is adopted; when the modulation data of Mmod2 is mapped, the second frequency hopping mode is adopted, and the two frequency hopping modes are different.
  • the modulated data mapping of Mmod1 is not directly subjected to frequency hopping or interleaving, and is directly mapped to corresponding resources.
  • the modulation data when the modulation data is mapped onto the symbols of the PBCH, it may be mapped to consecutive subcarriers or to non-contiguous subcarriers.
  • the modulated data may be mapped to a continuous subcarrier 0-143, or may be a non-contiguous subcarrier, for example, on the 0th, 2nd, 4th, 6th, 8th.
  • the bandwidth occupied by the first part and the second part of the first symbol may be equal or not equal.
  • the first part and the second part occupy 144 subcarriers, which are equal. In fact, it may be unequal.
  • the first part occupies 0-100 subcarriers
  • the second part occupies the 101st-287th subcarrier.
  • the numbers herein are merely examples and are not limited by the present invention.
  • each network element such as a base station or a terminal.
  • each network element such as a base station or a terminal.
  • it includes hardware structures and/or software modules corresponding to the execution of the respective functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiment of the present application may divide a function module into a base station or a terminal according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner. The following is an example of dividing each functional module by using corresponding functions.
  • the device can be a base station.
  • Figure 4 shows a schematic diagram of a simplified base station structure.
  • the base station includes a 401 part and a 402 part.
  • the 401 part is mainly used for the transmission and reception of radio frequency signals and the conversion of radio frequency signals and baseband signals; the 402 part is mainly used for baseband processing and control of base stations.
  • Section 401 can be generally referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver.
  • Section 402 is typically the control center of the base station and may be generally referred to as a processing unit for controlling the base station to perform the steps performed by the base station in Figures 2A and 2B above. For details, please refer to the description of the relevant part above.
  • the transceiver unit of the 401 part which may also be called a transceiver, or a transceiver, includes an antenna and a radio frequency unit, wherein the radio frequency unit is mainly used for radio frequency processing.
  • the device for implementing the receiving function in the 401 part may be regarded as a receiving unit
  • the device for implementing the transmitting function may be regarded as a transmitting unit, that is, the 401 portion includes a receiving unit and a transmitting unit.
  • the receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit or the like.
  • Section 402 can include one or more boards, each board can include one or more processors and one or more memories for reading and executing programs in memory to implement baseband processing functions and to base stations control. If multiple boards exist, the boards can be interconnected to increase processing power. As an optional implementation manner, multiple boards share one or more processors, or multiple boards share one or more memories, or multiple boards share one or more processes at the same time. Device.
  • the processing unit is configured to obtain N1 first modulation symbols and N2 second modulation symbols; wherein, N1 and N2 are both greater than or equal to 1; mapping the N1 first modulation symbols to physical Mapping a first portion of a first symbol of a broadcast channel PBCH and a first portion or a second portion of a second symbol of the PBCH, mapping the N2 second modulation symbols to a second symbol of a first symbol of the PBCH And a first portion or a second portion of the second symbol of the PBCH; the transceiver unit transmitting the first symbol of the PBCH and the second symbol of the PBCH.
  • the processing unit is configured to separately modulate M1 and M2 bit data to obtain N1 first modulation symbols and N2 second modulation symbols.
  • the processing unit is configured to modulate bit data to be mapped into M modulation symbols, and the M modulation symbols are divided into two parts, the first part is N1 first modulation symbols, and the second part is N2 second modulation symbols.
  • the processing unit is specifically configured to map the N1 first modulation symbols of 1/2 to the first part of the first PBCH symbol; and the remaining 1/2 of the N1 The first modulation symbol is mapped to the first portion or the second portion of the second PBCH symbol.
  • the processing unit is specifically configured to map the N2 second modulation symbols of 1/2 to the second part of the first PBCH symbol; and the remaining 1/2 of the N2 The second modulation symbol is mapped to the first portion or the second portion of the second PBCH symbol.
  • the embodiment of the present application further provides a device, which may be a terminal.
  • the terminal can be used to perform the steps performed by the terminal in Figures 2A and 2B.
  • Figure 5 shows a simplified schematic diagram of the terminal structure. It is convenient for understanding and illustration.
  • the terminal uses a mobile phone as an example.
  • the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used for processing communication protocols and communication data, and controlling terminals, executing software programs, processing data of software programs, and the like.
  • Memory is primarily used to store software programs and data.
  • the RF circuit is mainly used for the conversion of the baseband signal and the RF signal and the processing of the RF signal.
  • the antenna is mainly used to transmit and receive RF signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user. It should be noted that some types of terminals may not have input and output devices.
  • FIG. 5 does not constitute a limitation to the terminal, and may include more or less components than those illustrated, or a combination of certain components, or different component arrangements.
  • the memory can be used to store software programs and modules, and the processor executes various functional applications and data processing of the terminal by running software programs and modules stored in the memory.
  • the memory may mainly include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function, and the like; the storage data area may store data created according to usage of the terminal, and the like.
  • the memory may include a high speed random access memory, and may also include a nonvolatile memory or the like.
  • the processor is the control center of the terminal, and connects various parts of the entire terminal by using various interfaces and lines, and executes and executes each of the terminals by running or executing software programs and/or modules stored in the memory, and calling data stored in the memory. Functions and processing data to monitor the terminal as a whole.
  • the processor may include one or more processing units; preferably, the processor may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, etc., and modulates The demodulation processor primarily handles wireless communications.
  • Radio frequency (RF) circuits can be used to send and receive information and receive and transmit signals during a call.
  • RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the RF circuit can communicate with the network and other devices through wireless communication.
  • the wireless communication can use any communication standard or protocol, including but not limited to global mobile communication systems, general packet radio services, code division multiple access, wideband code division multiple access, long term evolution, email, short message service, and the like.
  • the terminal also includes a power supply for supplying power to the various components.
  • the power supply can be logically coupled to the processor through the power management system to manage functions such as charging, discharging, and power management through the power management system.
  • the terminal may further include an input unit, a display unit, a sensor module, an audio module, a WiFi module, a Bluetooth module, and the like, and details are not described herein again.
  • the processor When the data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be independent of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit having the transceiving function can be regarded as the transceiving unit of the terminal, and the processor having the processing function can be regarded as the processing unit of the terminal.
  • the terminal includes a transceiver unit 501 and a processing unit 502.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.
  • the device for implementing the receiving function in the transceiver unit 501 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 501 is regarded as a sending unit, that is, the transceiver unit 501 includes a receiving unit and a sending unit.
  • the transceiver unit may also be referred to as a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit or the like.
  • the transmitting unit may also be referred to as a transmitter, a transmitter, or a transmitting circuit, and the like.
  • the transceiver unit 501 is configured to receive a first symbol and a second symbol of a physical broadcast channel PBCH, where the first part of the first symbol and the second PBCH symbol
  • the second portion includes N1 first modulation symbols
  • the second portion of the first symbol and the first portion of the second symbol include N2 second modulation symbols, the first modulation symbol and the second modulation
  • the number of symbols is greater than or equal to 1
  • a processing unit is configured to demodulate the first modulation symbol and the second modulation symbol.
  • the processing unit is configured to demodulate the first modulation symbol and the second modulation symbol to obtain demodulated data of M1 and M2 bits.
  • the processing unit is configured to combine the M1 and M2 bits of demodulated data to obtain M demodulated data; and descramble and decode the M demodulated data.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device that includes one or more servers, data centers, etc. that can be integrated with the media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a solid state disk (SSD)

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Abstract

一种比特映射的方法及装置。方法包括：得到第一调制符号和第二调制符号；其中，第一调制符号和第二调制符号的个数大于等于1；将第一调制符号映射在物理广播信道PBCH的第一个符号的第一部分以及PBCH的第二个符号的第一部分或第二部分，将第二调制符号映射在PBCH的第一个符号的第二部分以及PBCH的第二个符号的第二部分或第一部分；发送PBCH的第一个符号和PBCH的第二个符号。

Description

一种比特映射的方法及装置 技术领域
本申请涉及通信技术领域，尤其涉及一种比特映射的方法及装置。
背景技术
在新无线(New Radio，NR)通信系统中，当前标准已经通过物理广播信道(physical broadcast channel，PBCH)占用2个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号的时频资源，但是对信道编码后的数据如何映射到该2个OFDM符号的时频资源上，还未提供解决方案。
发明内容
本申请的实施例提供一种比特映射的方法及装置，具体地，提供一种可以将数据比特映射到PBCH的时频资源的方法。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，提供一种比特映射的方法，包括得到N1个第一调制符号和N2个第二调制符号；其中，所述N1和N2均大于或等于1；将所述N1个第一调制符号映射在物理广播信道PBCH的第一个符号的第一部分以及所述PBCH的第二个符号的第一部分或第二部分，将所述N2个第二调制符号映射在所述PBCH的第一个符号的第二部分以及所述PBCH的第二个符号的第一部分或第二部分；发送所述PBCH的第一个符号和所述PBCH的第二个符号。
一种可能的设计中，得到N1个第一调制符号和N2个第二调制符号，具体包括：
对M1和M2个比特数据分别进行调制，得到N1个第一调制符号和N2个第二调制符号。
另一种可能的设计中，得到N1个第一调制符号和N2个第二调制符号，具体包括：
将待映射的比特数据调制成M个调制符号，M个调制符号分成两部分，第一部分为N1个第一调制符号，第二部分为N2个第二调制符号。
另一种可能的设计中，所述M1小于512以及所述M2小于512。
另一种可能的设计中，所述M1等于所述M2。
另一种可能的设计中，将所述第一调制符号映射在第一个PBCH符号的第一部分以及第二个PBCH符号的第一部分或第二部分，具体包括：将1/2的所述第一调制符号映射在第一个PBCH符号的第一部分；将剩余的1/2的所述第一调制符号映射在第一个PBCH符号的第一部分或第二部分。
另一种可能的设计中，将所述第二调制符号映射在第一个PBCH符号的第二部分以及第二个PBCH符号的第一部分或第二部分，具体包括：将1/2的所述第二调制符号映射在第一个PBCH符号的第二部分；将剩余的1/2所述第二调制符号映射在第二个PBCH符号的第一部分或第二部分。
另一种可能的设计中，所述第一部分包括连续的多个资源元素RE。
另一种可能的设计中，所述第二部分包括连续的多个资源元素RE。
另一种可能的设计中，所述第一部分包括144个资源元素RE。
另一种可能的设计中，所述第二部分包括144个资源元素RE。
另一种可能的设计中，所述方法还包括：将M比特数据分为两部分，得到M1和M2个比特数据；所述M比特数据是经过信道编码、加扰后得到的比特数据。
另一种可能的设计中，所述调制符号为正交相移键控QPSK符号。
第二方面，提供一种比特映射的方法，包括：接收物理广播信道PBCH的第一个符号和第二个符号；其中，所述第一个符号的第一部分以及所述第二个PBCH符号的第一部分或第二部分包含第一调制符号，所述第一个符号的第二部分以及所述第二个符号的第一部分或第二部分包含第二调制符号，所述第一调制符号和第二调制符号的个数大于等于1；分别对所述第一调制符号和所述第二调制符号进行解调。
一种可能的设计中，所述方法还包括：得到M1和M2个比特的解调数据，合并所述M1和M2比特的解调数据，得到M个解调数据；对所述M个解调数据解扰和解码，其中，所述M1和M2均大于等于1。
另一种可能的设计中，所述M1小于512，所述M2小于512。
另一种可能的设计中，所述M1等于所述M2。
另一种可能的设计中，所述第一个符号的第一部分包含1/2的所述第一调制符号，所述第二个符号的第一部分或第二部分包含剩余的1/2的所述第一调制符号。
另一种可能的设计中，所述第一个符号的第二部分包含1/2的所述第二调制符号，所述第二个符号的第二部分或第一部分包含剩余的1/2的所述第二调制符号。
另一种可能的设计中，所述第一部分包括连续的多个资源元素RE。
另一种可能的设计中，所述第二部分包括连续的多个资源元素RE。
另一种可能的设计中，所述第一部分包括144个资源元素RE。
另一种可能的设计中，所述第二部分包括144个资源元素RE。
第三方面，提供一种基站，包括：
处理单元，用于得到N1个第一调制符号和N2个第二调制符号；其中，所述N1和N2均大于等于1；
所述处理单元，用于将所述N1个第一调制符号映射在物理广播信道PBCH的第一个符号的第一部分以及所述PBCH的第二个符号的第二部分，将所述N2个第二调制符号映射在所述PBCH的第一个符号的第二部分以及所述PBCH的第二个符号的第一部分；
收发单元，发送所述PBCH的第一个符号和所述PBCH的第二个符号。
一种可能的设计中，所述处理单元，用于：对M1和M2个比特数据分别进行调制，得到N1个第一调制符号和N2个第二调制符号。
另一种可能的设计中，所述处理单元，用于：将待映射的比特数据调制成M个调制符号，M个调制符号分成两部分，第一部分为N1个第一调制符号，第二部分为N2个第二调制符号。
另一种可能的设计中，所述M1小于512以及所述M2小于512。
另一种可能的设计中，所述M1等于所述M2。
另一种可能的设计中，所述处理单元，具体用于将1/2的所述第一调制符号映射在第一个PBCH符号的第一部分；将剩余的1/2的所述第一调制符号映射在第二个PBCH符 号的第一部分或第二部分。
另一种可能的设计中，所述处理单元，具体用于将1/2的所述第二调制符号映射在第一个PBCH符号的第二部分；将剩余的1/2所述第二调制符号映射在第二个PBCH符号的第一部分或第二部分。
另一种可能的设计中，所述第一部分包括连续的多个资源元素RE。
另一种可能的设计中，所述第二部分包括连续的多个资源元素RE。
另一种可能的设计中，所述第一部分包括144个资源元素RE。
另一种可能的设计中，所述第二部分包括144个资源元素RE。
第四方面，提供一种终端，包括：
收发单元，用于接收物理广播信道PBCH的第一个符号和第二个符号；其中，所述第一个符号的第一部分以及所述第二个PBCH符号的第一部分或第二部分包含第一调制符号，所述第一个符号的第二部分以及所述第二个符号的第一部分或第二部分包含第二调制符号，所述第一调制符号和第二调制符号的个数大于等于1；
处理单元，用于分别对所述第一调制符号和所述第二调制符号进行解调。
在一种可能的设计中，所述处理单元，用于得到M1和M2个比特的解调数据，合并所述M1和M2比特的解调数据，得到M个解调数据；对所述M个解调数据解扰和解码，其中，所述M1和M2均大于等于1。
另一种可能的设计中，所述M1小于512，所述M2小于512。
另一种可能的设计中，所述M1等于所述M2。
另一种可能的设计中，所述第一个符号的第一部分包含1/2的所述第一调制符号，所述第二个符号的第二部分包含剩余的1/2的所述第一调制符号。
另一种可能的设计中，所述第一个符号的第二部分包含1/2的所述第二调制符号，所述第二个符号的第一部分包含剩余的1/2的所述第二调制符号。
另一种可能的设计中，所述第一部分包括连续的多个资源元素RE。
另一种可能的设计中，所述第二部分包括连续的多个资源元素RE。
另一种可能的设计中，所述第一部分包括144个资源元素RE。
另一种可能的设计中，所述第二部分包括144个资源元素RE。
第五方面，提供一种基站，该基站包括处理器、存储器、收发器和总线，存储器中存储代码和数据，处理器、存储器和收发器通过总线连接，处理器运行存储器中的代码使得基站执行上述第一方面或第一方面的任一种可能的实现方式所提供的方法。
第六方面，提供一种终端，该终端包括处理器、存储器、收发器和总线，存储器中存储代码和数据，处理器、存储器和收发器通过总线连接，处理器运行存储器中的代码使得终端执行上述第二方面或第二方面的任一种可能的实现方式所提供的方法。
本申请的又一方面提供了一种系统，该系统包括基站和终端；其中，基站为上述各方面所提供的基站，和/或终端为上述各方面所提供的终端。
本申请的又一方面提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述各方面所提供的解调参考信号序列生成方法、或者解调参考信号序列映射方法、或者解调参考信号序列指示方法。
本申请的又一方面提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所提供的方法。
可以理解地，上述提供的任一种通信的方法的装置、计算机存储介质或者计算机程序产品均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
本发明实施例提供的方法可以适用于NR系统中。
进一步的技术效果为：本发明实施例提供的方案可以抗频率选择性，第一调制符号的PBCH的数据采用第一个符号的第一部分和第二个符号的第一部分，这两部分都位于低频，第一调制符号的PBCH的数据采用第一个符号的第二部分和第二个符号的第二部分，这两部分都位于高频，当高频衰减性能比较大的时候，可以利用低频数据解调PBCH数据，当低频衰减性能比较大的时候，可以利用高频数据解调PBCH数据，从而达到抗频率选择性的目的。
附图说明
图1为本申请实施例提供的一种通信系统的结构示意图；
图2A为本申请实施例提供的一种数据映射方法的流程图；
图2B为本申请实施例提供的一种数据映射方法的流程图；
图3为本申请实施例提供的一种数据映射的示意图；
图4为本申请实施例提供的一种基站的结构示意图；
图5为本申请实施例提供的一种终端的结构示意图。
具体实施方式
在介绍本申请之前，首先对本申请实施例涉及到的技术名词进行介绍说明。
本申请提供的技术方案可以应用于各种使用了波束技术的通信系统，例如，现有通信系统基础上采用波束技术，5G通信系统，未来演进系统或者多种通信融合系统等等。可以包括多种应用场景，例如，机器对机器(machine to machine，M2M)、D2M、宏微通信、增强型移动互联网(enhance mobile broadband，eMBB)、超高可靠性与超低时延通信(ultra reliable&low latency communication，uRLLC)以及海量物联网通信(massive machine type communication，mMTC)等场景。这些场景可以包括但不限于：终端与终端之间的通信场景，基站与基站之间的通信场景，基站与终端之间的通信场景等。本申请实施例提供的技术方案也可以应用于5G通信系统中的终端与终端之间的通信，或基站与基站之间的通信等场景中。
图1给出了一种通信系统示意图，该通信系统可以包括至少一个基站100(仅示出1个)以及与基站100连接的一个或多个终端200。
基站100可以是能和终端200通信的设备。基站100可以是中继站或接入点等。基站100可以是全球移动通信系统(global system for mobile communication，GSM)或码分多址(code division multiple access，CDMA)网络中的基站收发信台(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)中的NB(NodeB)，还可以是LTE中的eNB或eNodeB(evolutional NodeB)。基站100还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器。基站100还可以是5G网络中的网络设备或未来演进网络中的网络设备；还可以是可穿戴设备或车载设备等。
终端200可以是用户设备(user equipment，UE)、接入终端、UE单元、UE站、移动站、移动台、远方站、远程终端、移动设备、UE终端、终端、无线通信设备、UE代理或UE装置等。接入终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端或者未来演进的PLMN网络中的终端等。
图1为本申请的实施例所应用的通信系统的结构示意图，参见图1，该通信系统包括基站101和终端(User Equipment，UE)102。
其中，基站101具有共享信道的调度功能，具有基于发送到终端102的分组数据的历史来建立调度的功能，调度就是在多个终端102共用传输资源时，需要有一种机制来有效地分配物理层资源，以获得统计复用增益。
终端102具有通过与基站101之间建立的通信信道而发送和接收数据的功能。终端102根据通过调度控制信道发送的信息，进行共享信道的发送或接收处理。另外，终端102可以是手机、平板电脑、计算机以及便携终端等等，且终端102的类型可以相同，也可以不同。
基站101与终端102之间通过通信信道进行数据的接收和发送，该通信信道可以是无线通信信道，且在无线通信信道中，至少存在共享信道和调度控制信道，共享信道是为了发送和接收分组而在多个UE 102之间公用，调度控制信道用于发送共享信道的分配、以及相应的调度结果等。
图2A为本申请实施例提供的一种数据映射方法200的流程图，参见图2A，该方法200包括以下几个步骤。
步骤201：得到N1个第一调制符号和N2第二调制符号；其中，所述M1和所述M2均大于或等于1，所述第一调制符号和第二调制符号的个数大于等于1；
步骤202：将所述N1个第一调制符号映射在物理广播信道PBCH的第一个符号的第一部分以及所述PBCH的第二个符号的第二部分，将所述N2个第二调制符号映射在所述PBCH的第一个符号的第二部分以及所述PBCH的第二个符号的第一部分；
步骤203：发送所述PBCH的第一个符号和所述PBCH的第二个符号；
步骤204：接收物理广播信道PBCH的第一个符号和第二个符号，其中，所述第一个符号的第一部分以及所述第二个符号的第二部分包含N1个第一调制符号，所述第一个符号的第二部分以及所述第二符号的第一部分包含N2个第二调制符号，所述N1，N2大于等于1；
步骤205：对所述N1个第一调制符号和所述N2个第二调制符号进行解调。
可选地，得到N1个第一调制符号和N2第二调制符号，可以是：
对M1和M2个比特数据分别进行调制，得到N1个第一调制符号和N2个第二调制符号。
可选地，所述方法200还包括：
对M个比特分成两部分，得到M1和M2个比特数据。该M个比特数据可以是经过信道编码之后的数据，该M个比特数据还可以是经过信道编码以及加扰之后的数据。
可选地，得到N1个第一调制符号和N2第二调制符号，可以是：
将待映射的比特数据调制成M个调制符号，M个调制符号分成两部分，第一部分为N1个第一调制符号，第二部分为N2个第二调制符号。
较优地，M1和M2相等，均为1/2的M比特。
可选地，所述方法200还包括：
对所述N1个第一调制符号和所述N2个第二调制符号进行解调，得到M1个和M2个解调数据，M1和M2均大于等于1；
合并所述M1和M2比特的解调数据，得到M个比特的解调数据；
对所述M个解调数据进行解扰、解码。
需要说明的是：将所述N1个第一调制符号映射在物理广播信道PBCH的第一个符号的第一部分以及所述PBCH的第二个符号的第二部分，这句话可能有不同的解释，比如第一种解释为：
第一个PBCH符号和第二个PBCH符号上，映射的N1个第一调制符号完全相同，即N1个第一调制符号先映射到第一个PBCH符号的第一部分，然后再把这N1个符号映射到第二个PBCH符号的第二部分。
比如，第二种解释为：N1个第一调制符号，分为两部分，第一部分映射到第一个PBCH符号的第一部分，第二部分映射到第二个PBCH符号的第二部分。即N1个符号，分别映射到两个PBCH符号上。对本发明来说，以上两种解释都适用本发明。同理地，将所述N2个第二调制符号映射在所述PBCH的第一个符号的第二部分以及所述PBCH的第二个符号的第一部分，这句话也可以有两种解释，这两种解释都适用本发明。
本发明实施例提供的比特映射的方法，可以带来频率分集增益。
图2B为本申请实施例提供的一种数据映射方法200的流程图，参见图2B，该方法200包括以下几个步骤。
步骤201：得到N1个第一调制符号和N2第二调制符号；其中，所述N1和N2均大于等于1；
步骤202：将所述N1个第一调制符号映射在物理广播信道PBCH的第一个符号的第一部分以及所述PBCH的第二个符号的第一部分，将所述N2个第二调制符号映射在所述PBCH的第一个符号的第二部分以及所述PBCH的第二个符号的第二部分；
步骤203：发送所述PBCH的第一个符号和所述PBCH的第二个符号；
步骤204：接收物理广播信道PBCH的第一个符号和第二个符号，其中，所述第一个符号的第一部分以及所述第二个符号的第一部分包含N1个第一调制符号，所述第一个符号的第二部分以及所述第二符号的第二部分包含N2个第二调制符号，所述N1，N2大于等于1；
步骤205：对所述N1个第一调制符号和所述N2个第二调制符号进行解调。
需要说明的是：将所述N1个第一调制符号映射在物理广播信道PBCH的第一个符号的第一部分以及所述PBCH的第二个符号的第一部分，这句话可能有不同的解释，比如第一种解释为：
第一个PBCH符号和第二个PBCH符号上，映射的N1个第一调制符号完全相同，即N1个第一调制符号先映射到第一个PBCH符号的第一部分，然后再把这N1个符号映射到第二个PBCH符号的第一部分。
比如，第二种解释为：N1个第一调制符号，分为两部分，第一部分映射到第一个 PBCH符号的第一部分，第二部分映射到第二个PBCH符号上的第一部分。即N1个符号，分别映射到两个PBCH符号上。对本发明来说，以上两种解释都适用本发明。同理地，将所述N2个第二调制符号映射在所述PBCH的第一个符号的第二部分以及所述PBCH的第二个符号的第二部分，这句话也可以有两种解释，这两种解释都适用本发明。
其中，得到N1个第一调制符号和N2第二调制符号，可以是对M1和M2个比特数据分别进行调制，分别对应得到N1个第一调制符号和N2第二调制符号。还可以是
M个比特的数据直接调制成N个调制符号，N个调制符号分成两部分，第一部分为N1个调制符号，第二部分为N2个调制符号。还可以是将M个比特分为M1和M2个比特数据，对M1和M2个比特数据分别进行调制，分别对应得到N1个第一调制符号和N2第二调制符号。
可选地，M1个比特和M2个比特分别经过不同的交织器交织。
可选地，N1个第一调制符号和N2个第二调制符号分别经过不同的交织器交织，然后进行映射。
可选地，N1个第一调制符号和N2个第二调制符号分别根据不同的跳频方式映射到资源上。
图2A和2B所示的方法可以适用于NR系统中。
进一步的有益效果是：抗频率选择性，第一调制符号的PBCH的数据采用第一个符号的第一部分和第二个符号的第一部分，这两部分都位于低频，第一调制符号的PBCH的数据采用第一个符号的第二部分和第二个符号的第二部分，这两部分都位于高频，当高频衰减性能比较大的时候，可以利用低频数据解调PBCH数据，当低频衰减性能比较大的时候，可以利用高频数据解调PBCH数据，从而达到抗频率选择性的目的。
为了进一步说明本发明实施例，如图3所示：
假设当前有M比特经过信道编码后的数据，需要映射到广播信道发送给终端。当前NR的标准基本确定了广播信道占用2个符号的时频资源，如图3(a)～(d)所示，每个子图的横坐标代表时间资源，纵坐标代表频率资源，比如，左边为第一个符号，右边有第二个符号，纵向以288个子载波为例，标记为0～287，应理解，288个子载波仅为示例，也可以是其他数目的子载波。
经过信道编码之后的数据比特，假如记为M个比特，将这M个比特映射到2个PBCH的符号上，有多种实现方式，比如，根据图3(c)的方案：
将M个比特的数据进行调制，得到X比特的调制数据；
将所述X比特的调制数据映射到所述PBCH的2个符号上。
在图3(c)所示的这种映射方式中，原理是采用顺序映射或者倒序映射。
再比如，根据图3(b)的方案：
将M个比特的数据分为两部分，得到M1和M2的比特数据；
分别对所述M1和M2的比特数据进行调制，得到Mmod1和Mmod2的调制数据；
分别将Mmod1的调制数据映射到第一个符号，将Mmod2的调制数据映射到第二个符号。
图3(b)和图3(c)的方案是将PBCH调制数据顺序映射到从低频到高频的频率资源位置或者从高频向低频的频率资源映射，Mmod1的调制数据占据了整个PBCH的带宽。这种映射方式在PBCH传输的时候抗频率选择性能比较差，当较高频率或者较低频率的 PBCH的衰减比较大的时候，较高或者较低频率部分的PBCH数据接受性能比较差，导致该部分的PBCH数据无法解调。
再比如，根据图3(a)，即本发明实施例的方案：
将M个比特的数据分为两部分，得到M1和M2的比特数据；
分别对所述M1和M2的比特数据进行调制，得到Mmod1和Mmod2的调制数据；
分别将一部分的Mmod1的调制数据映射到第一符号的第一部分，将另外一部分的Mmod1的调制数据映射到第二符号的第一部分；将一部分的Mmod2的调制数据映射到第一符号的第二部分，将另外一部分的Mmod2的调制数据映射到第二符号的第一部分。
需要说明的是，图3(a)中，将M个比特的数据分为两部分，得到M1和M2的比特数据，并非必选步骤。在另一种可能的实现方式中，经过信道编码的比特数据是2份的，第一份可以称为M1比特数据，第二份称为M2比特数据。在图3(a)所示的比特映射方式中，可以将编码之前的待映射的比特数据进行交织(英文：interleave)或者跳频(hopping)映射，其中，跳频映射可以是现有技术中已有的任意方式的跳频。
再比如，根据图3(d)，即本发明实施例的方案：
将M个比特的数据分为两部分，得到M1和M2的比特数据；
分别对所述M1和M2的比特数据进行调制，得到Mmod1和Mmod2的调制数据；
分别将一部分的Mmod1的调制数据映射到第一符号的第一部分，将另外一部分的Mmod1的调制数据映射到第二符号的第一部分；将一部分的Mmod2的调制数据映射到第一符号的第二部分，将另外一部分的Mmod2的调制数据映射到第二符号的第一部分。
需要说明的是，图3(d)中，将M个比特的数据分为两部分，得到M1和M2的比特数据，并非必选步骤。在另一种可能的实现方式中，经过信道编码的比特数据是2份的，第一份可以称为M1比特数据，第二份称为M2比特数据。
在图3(d)所示的比特映射方式中，可以将编码之前的待映射的比特数据进行交织(英文：interleave)或者跳频(hopping)映射，其中，跳频映射可以是现有技术中已有的任意方式的跳频。
图3(a)和(d)所示的方法可以抗频率选择性，第一调制符号的PBCH的数据采用第一个符号的第一部分和第二个符号的第一部分，这两部分都位于低频，第一调制符号的PBCH的数据采用第一个符号的第二部分和第二个符号的第二部分，这两部分都位于高频，当高频衰减性能比较大的时候，可以利用低频数据解调PBCH数据，当低频衰减性能比较大的时候，可以利用高频数据解调PBCH数据，从而达到抗频率选择性的目的。
可选地，上述调制方式可以是现有技术已有的调制方式，比如，QPSK,BPSK,QAM。
可选地，映射调制数据时，是映射到所述PBCH的解调参考信号(demodulation reference signal，DMRS)以外的时频资源上。应理解，PBCH上有可能会映射有DMRS，用于接收端解调该PBCH，当映射本发明所提到的调制数据时，应该选择那些未映射DMRS的资源。
可选地，映射调制数据时，可以仅占用部分时频资源，不一定占满所有的时频资源。比如，PBCH共有288个子载波，上述调制数据可以仅占用部分子载波。
可选地，将M个比特数据分为M1和M2两部分时，M1和M2可以不相等，也可以相等。
可选地，Mmod1的调制数据经过第一个交织器然后映射，Mmod2的调制数据经过第 二个交织器然后映射，两个交织器不相同。
可选地，Mmod1的调制数据映射时，采用第一种跳频方式；Mmod2的调制数据映射时，采取第二种跳频方式，两中跳频方式不相同。
可选地，Mmod1的调制数据映射时不采取跳频或者交织，直接顺序映射到对应的资源上。
对上述所有实施例来说，将调制数据映射到PBCH的符号上时，可以映射到连续的子载波上，也可以映射到非连续的子载波上。比如，可以将调制数据映射到一段连续的子载波0～143上，也可以是非连续的子载波，比如，第0、2、4、6、8…子载波上。
对上述图3(a)和图3(d)对应的实施例来说，所述第一符号的第一部分和第二部分占用的带宽，可以相等，也可以不相等。比如，图3(a)和图3(d)中，第一部分和第二部门都是占用144个子载波，是相等的。其实，还可以是不相等的，比如，第一部分占用0-100子载波，第二部分占用第101-287个子载波，这里的数字仅为示例，不对本发明限定。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，各个网元，例如基站或者终端。为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对基站或者终端进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。下面以采用对应各个功能划分各个功能模块为例进行说明。
本申请实施例还提供一种装置。例如，该装置可以是基站。图4示出了一种简化基站结构示意图。基站包括401部分以及402部分。401部分主要用于射频信号的收发以及射频信号与基带信号的转换；402部分主要用于基带处理，对基站进行控制等。401部分通常可以称为收发单元、收发机、收发电路、或者收发器等。402部分通常是基站的控制中心，通常可以称为处理单元，用于控制基站执行上述图2A和图2B中关于基站所执行的步骤。具体可参见上述相关部分的描述。
401部分的收发单元，也可以称为收发机，或收发器等，其包括天线和射频单元，其中射频单元主要用于进行射频处理。可选的，可以将401部分中用于实现接收功能的器件视为接收单元，将用于实现发送功能的器件视为发送单元，即401部分包括接收单元和发送单元。接收单元也可以称为接收机、接收器、或接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
402部分可以包括一个或多个单板，每个单板可以包括一个或多个处理器和一个或多个存储器，处理器用于读取和执行存储器中的程序以实现基带处理功能以及对基站的控制。若存在多个单板，各个单板之间可以互联以增加处理能力。作为一中可选的实施 方式，也可以是多个单板共用一个或多个处理器，或者是多个单板共用一个或多个存储器，或者是多个单板同时共用一个或多个处理器。
例如，在一种实现方式中，处理单元用于得到N1个第一调制符号和N2个第二调制符号；其中，N1和N2均大于等于1；将所述N1个第一调制符号映射在物理广播信道PBCH的第一个符号的第一部分以及所述PBCH的第二个符号的第一部分或第二部分，将所述N2个第二调制符号映射在所述PBCH的第一个符号的第二部分以及所述PBCH的第二个符号的第一部分或第二部分；收发单元，发送所述PBCH的第一个符号和所述PBCH的第二个符号。
在一种实现方式中，所述处理单元，用于对M1和M2个比特数据分别进行调制，得到N1个第一调制符号和N2个第二调制符号。
在另一种实现方式中，所述处理单元，用于将待映射的比特数据调制成M个调制符号，M个调制符号分成两部分，第一部分为N1个第一调制符号，第二部分为N2个第二调制符号。
在一种实现方式中，所述处理单元，具体用于将1/2的所述N1个第一调制符号映射在第一个PBCH符号的第一部分；将剩余的1/2的所述N1个第一调制符号映射在第二个PBCH符号的第一部分或第二部分。
在一种实现方式中，所述处理单元，具体用于将1/2的所述N2个第二调制符号映射在第一个PBCH符号的第二部分；将剩余的1/2所述N2个第二调制符号映射在第二个PBCH符号的第一部分或第二部分。
本申请实施例还提供一种装置，该装置可以是终端。该终端可以用于执行图2A和图2B中终端所执行的步骤。图5示出了一种简化的终端结构示意图。便于理解和图示方便，图5中，终端以手机作为例子。如图5所示，终端包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端可以不具有输入输出装置。
本领域技术人员可以理解，图5中示出的结构并不构成对终端的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
下面结合图5对终端的各个构成部件进行具体的介绍：
存储器可用于存储软件程序以及模块，处理器通过运行存储在存储器的软件程序以及模块，从而执行终端的各种功能应用以及数据处理。存储器可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序等；存储数据区可存储根据终端的使用所创建的数据等。此外，存储器可以包括高速随机存取存储器，还可以包括非易失性存储器等。
处理器是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器内的软件程序和/或模块，以及调用存储在存储器内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。可选的，处理器可包括一个或多个处理单元；优选的，处理器可集成应用处理器和调制解调处理器，其中，应用处 理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。
射频(Radio Frequency，RF)电路可用于收发信息或通话过程中，信号的接收和发送。通常，RF电路包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，RF电路还可以通过无线通信与网络和其他设备通信。所述无线通信可以使用任一通信标准或协议，包括但不限于全球移动通讯系统、通用分组无线服务、码分多址、宽带码分多址、长期演进、电子邮件、短消息服务等。
终端还包括给各个部件供电的电源，优选的，电源可以通过电源管理系统与处理器逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
尽管未示出，终端还可以包括输入单元、显示单元、传感器模块、音频模块、WiFi模块、蓝牙模块等，在此不再赘述。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图5中仅示出了一个存储器和处理器。在实际的终端产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端的收发单元，将具有处理功能的处理器视为终端的处理单元。如图5所示，终端包括收发单元501和处理单元502。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元501中用于实现接收功能的器件视为接收单元，将收发单元501中用于实现发送功能的器件视为发送单元，即收发单元501包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
例如，在一种实现方式中，收发单元501，用于接收物理广播信道PBCH的第一个符号和第二个符号；其中，所述第一个符号的第一部分以及所述第二个PBCH符号的第二部分包含N1个第一调制符号，所述第一个符号的第二部分以及所述第二个符号的第一部分包含N2个第二调制符号，所述第一调制符号和第二调制符号的个数大于等于1；处理单元，用于对所述第一调制符号和所述第二调制符号进行解调。
在一种实现方式中，所述处理单元，用于对所述第一调制符号和所述第二调制符号进行解调，得到M1和M2比特的解调数据。
在一种实现方式中，所述处理单元，用于合并所述M1和M2比特的解调数据，得到M个解调数据；对所述M个解调数据解扰和解码。
上述提供的任一种通信装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例，此处不再赘述。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部 或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)，光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
尽管在此结合各实施例对本申请进行了描述，然而，在实施所要求保护的本申请过程中，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现所述公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。
尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (23)

  1. 一种比特映射方法，其特征在于，所述方法包括：
    得到N1个第一调制符号和N2个第二调制符号；所述N1和N2均大于等于1；
    将所述N1个第一调制符号映射在物理广播信道PBCH的第一个符号的第一部分以及所述PBCH的第二个符号的第一部分或第二部分，将所述N2个第二调制符号映射在所述PBCH的第一个符号的第二部分以及所述PBCH的第二个符号的第一部分或第二部分；
    发送所述PBCH的第一个符号和所述PBCH的第二个符号。
  2. 根据权利要求1所述的方法，其特征在于，得到N1个第一调制符号和N2个第二调制符号，具体包括：
    对M1和M2个比特数据分别进行调制，得到N1个第一调制符号和N2个第二调制符号。
  3. 根据权利要求1所述的方法，其特征在于，得到N1个第一调制符号和N2个第二调制符号，具体包括：
    将待映射的比特数据调制成M个调制符号，M个调制符号分成两部分，第一部分为N1个第一调制符号，第二部分为N2个第二调制符号。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，将所述N1个第一调制符号映射在第一个PBCH符号的第一部分以及第二个PBCH符号的第一部分或第二部分，具体包括：
    将1/2的所述N1个第一调制符号映射在第一个PBCH符号的第一部分；
    将剩余的1/2的所述N1个第一调制符号映射在第二个PBCH符号的第一部分或第二部分。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，将所述N2个第二调制符号映射在第一个PBCH符号的第二部分以及第二个PBCH符号的第二部分或第一部分，具体包括：
    将1/2的所述N2个第二调制符号映射在第一个PBCH符号的第二部分；
    将剩余的1/2所述N2个第二调制符号映射在第二个PBCH符号的第一部分或第二部分。
  6. 根据权利要求1-5所述的方法，其特征在于，所述第一部分包括连续的多个资源元素RE。
  7. 根据权利要求1-6所述的方法，其特征在于，所述第二部分包括连续的多个资源元素RE。
  8. 根据权利要求1-7所述的方法，其特征在于，所述第一部分包括144个资源元素RE。
  9. 根据权利要求1-8所述的方法，其特征在于，所述第二部分包括144个资源元素RE。
  10. 根据权利要求2所述的方法，其特征在于，所述方法还包括：将M比特数据分为两部分，得到M1和M2个比特数据；
    所述M比特数据是经过信道编码、加扰后得到的比特数据。
  11. 根据权利要求1-10所述的方法，其特征在于，所述调制符号为正交相移键控QPSK符号。
  12. 一种比特映射方法，其特征在于，所述方法包括：
    接收物理广播信道PBCH的第一个符号和第二个符号；其中，所述第一个符号的第一部分以及所述第二个PBCH符号的第二部分或第一部分包含N1个第一调制符号，所述第一个符号的第二部分以及所述第二个符号的第一部分或第二部分包含N2个第二调制符号，所述N1，N2大于等于1；
    对所述N1个第一调制符号和所述N2个第二调制符号进行解调。
  13. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    得到M1和M2个比特的解调数据，其中，所述M1和M2均大于等于1；
    合并所述M1和M2比特的解调数据，得到M个解调数据；
    对所述M个解调数据解扰和解码。
  14. 根据权利要求13所述的方法，其特征在于，所述M1小于512，所述M2小于512。
  15. 根据权利要求13或14所述的方法，其特征在于，所述M1等于所述M2。
  16. 根据权利要求12-15任一项所述的方法，其特征在于，所述第一个符号的第一部分包含1/2的所述N1个第一调制符号，所述第二个符号的第一部分或第二部分包含剩余的1/2的所述N1个第一调制符号。
  17. 根据权利要求12-15任一项所述的方法，其特征在于，所述第一个符号的第二部分包含1/2的所述N2个第二调制符号，所述第二个符号的第一部分或第二部分包含剩余的1/2的所述N2个第二调制符号。
  18. 根据权利要求12-17所述的方法，其特征在于，所述第一部分包括连续的多个资源元素RE。
  19. 根据权利要求12-18所述的方法，其特征在于，所述第二部分包括连续的多个资源元素RE。
  20. 根据权利要求12-19所述的方法，其特征在于，所述第一部分包括144个资源元素RE。
  21. 根据权利要求12-20所述的方法，其特征在于，所述第二部分包括144个资源元素RE。
  22. 一种基站，其特征在于，所述基站包括处理器、存储器、收发器和总线，所述存储器中存储代码和数据，所述处理器、所述存储器和所述收发器通过所述总线连接，所述处理器运行所述存储器中的代码使得所述基站执行权利要求1-11任一项所述的方法。
  23. 一种终端，其特征在于，所述终端包括处理器、存储器、收发器和总线，所述存储器中存储代码和数据，所述处理器、所述存储器和所述收发器通过所述总线连接，所述处理器运行所述存储器中的代码使得所述终端执行上述权利要求12-21任一项所述方法。
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CN103840932A (zh) * 2012-11-27 2014-06-04 华为技术有限公司 一种物理广播信道传输方法、设备和系统

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