WO2018137219A1 - 一种信息传输方法及装置 - Google Patents

一种信息传输方法及装置 Download PDF

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Publication number
WO2018137219A1
WO2018137219A1 PCT/CN2017/072703 CN2017072703W WO2018137219A1 WO 2018137219 A1 WO2018137219 A1 WO 2018137219A1 CN 2017072703 W CN2017072703 W CN 2017072703W WO 2018137219 A1 WO2018137219 A1 WO 2018137219A1
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Prior art keywords
zadoff
chu sequence
sub
time domain
domain symbols
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PCT/CN2017/072703
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English (en)
French (fr)
Inventor
汲桐
金哲
张维良
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华为技术有限公司
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Priority to PCT/CN2017/072703 priority Critical patent/WO2018137219A1/zh
Priority to CN201780045471.6A priority patent/CN109479287A/zh
Publication of WO2018137219A1 publication Critical patent/WO2018137219A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an information transmission method and apparatus.
  • the Narrow Band Internet of Things is built on a cellular network and can consume at least 180KHz of bandwidth. It can be deployed directly on the Global System for Mobile Communication (GSM) network and universal mobile communications.
  • GSM Global System for Mobile Communication
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • the NB-IoT uses the licensed frequency band and can be deployed in the in-band, guard-band or standalone mode to coexist with the existing network.
  • synchronization signal such as Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), and Resource Mapping of Master Information Block (MIB).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • MIB Master Information Block
  • resource mapping is performed according to the in-band mode, that is, only the last 11 orthogonal frequency division multiplexing (OFDM) symbols of the subframe 5 are used to transmit the PSS, and only the subframe 9 is used.
  • OFDM orthogonal frequency division multiplexing
  • the 11 OFDM symbols transmit the SSS, and only the last 11 OFDM symbols of the 0th subframe are used to transmit the MIB.
  • the first three OFDM symbols of the subframes 5, 0, and 9 are in an idle state in the protection mode and the independent carrier deployment mode, so that resources are wasted.
  • the embodiment of the invention provides an information transmission method and device, which are used to solve the technical problem of resource waste existing in the prior art.
  • an embodiment of the present invention provides an information transmission method, where the method includes: a network side device first signal; a network side device sends the first signal on a first resource; wherein the first resource includes a narrowband At least one of the nine time domain symbols of at least one radio frame in the Internet of Things, the nine time domain symbols including the first three time domain symbols of the fifth subframe, and the first three of the zero subframes The time domain symbol and the first 3 time domain symbols of the 9th subframe. Because the first signal is transmitted by using the idle time domain symbol, on the one hand, the idle resource is effectively utilized, the resource waste is avoided, and on the other hand, the information transmission performance of the system can be improved.
  • an embodiment of the present invention provides an information transmission method, where the method includes: determining, by a terminal device, a first resource, where the first resource includes nine time domain symbols of at least one radio frame in a narrowband Internet of Things At least one time domain symbol, the first three time domain symbols of the fifth subframe, the first three time domain symbols of the zero subframe, and the first three time domain symbols of the subframe 9 .
  • the terminal device then receives the first signal on the first resource. Because the first signal is transmitted by using the idle time domain symbol, on the one hand, the idle resource is effectively utilized, the resource waste is avoided, and on the other hand, the information transmission performance of the system can be improved.
  • the first signal includes at least one of a synchronization signal and a system message.
  • the synchronization signal is a complete synchronization signal or a partial synchronization signal
  • the system message is a complete master information block or a partial master information block. With this method, it is possible to design the synchronization signal and/or the system message separately, or to extend the existing synchronization signal and/or system message.
  • the synchronization signal is a primary synchronization signal or a secondary synchronization signal.
  • the first signal includes at least one sub-signal, each of the sub-signals is a Zadoff-Chu sequence, or a Zadoff-Chu sequence and a complex number The product of.
  • the Zadoff-Chu sequence corresponding to each of the sub-signals is the same. With this design, the processing complexity on the receiving side can be reduced.
  • the length of the Zadoff-Chu sequence is an integer greater than or equal to 11. With this design, better synchronization performance can be obtained.
  • the Zadoff-Chu sequence satisfies the following formula:
  • n 0,1,...,L-1
  • the integer u is the root index of the Zadoff-Chu sequence
  • e is a natural constant
  • j is an imaginary unit
  • For the pi, a positive integer L is the length of the Zadoff-Chu sequence, and an integer n is the element number of the Zadoff-Chu sequence.
  • the Zadoff-Chu sequence has a root index of 5.
  • the cross-correlation of the first signal is good, so that better synchronization performance can be obtained; and the existing NB-IoT PSS is also a Zadoff-Chu sequence using a root index of 5,
  • the continued use of the Zadoff-Chu sequence of the root index 5 in the embodiment can reduce the processing complexity of the terminal.
  • the at least one sub-signal includes 3 sub-signals respectively carried in the first 3 subframes of the 5th subframe of the at least one radio frame.
  • On the time domain symbol since the PSS in the existing NB-IoT is carried on the last 11 time-domain symbols of the subframe 5 of each radio frame, this embodiment uses the first three time-domain symbols of the subframe 5, which can The terminal device detects a complete subframe number 5 to obtain a PSS signal, which is beneficial to improve synchronization performance.
  • the sub-signals carried on the first, second, and third time-domain symbols of the subframe number 5 are respectively used as (1, 1, 1). ), (1, -1, 1), (1, -1, -1), (-1, 1, 1), (-1, -1, 1) or (-1, -1, -1) .
  • the complexity of the synchronization process of the terminal device can be reduced; and the above complex selection can be better combined with the complex number used by the PSS in the existing NB-IoT, that is, the sequence correlation of the PSS can be maintained by the symbol level scrambling code. To ensure good synchronization performance.
  • an embodiment of the present invention provides an information transmission apparatus, which is used to implement a function of a network side device behavior in the foregoing method design, and the function may be implemented by hardware, or may be implemented by hardware corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the information transmission device includes a processor and a transmitter configured to support the network side device to perform a corresponding function in the above method.
  • the transmitter is configured to support communication between the network side device and the terminal device, and send information or instructions involved in the foregoing method to the terminal device.
  • the network side device may also be packaged
  • a memory is provided for coupling with the processor, which holds program instructions and data necessary for the network side device.
  • an embodiment of the present invention provides a terminal device.
  • the terminal device has a function of realizing the behavior of the terminal device in the above method design.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the modules can be software and/or hardware.
  • the terminal device includes a processor and a receiver.
  • the processor is configured to determine a first resource
  • the receiver is configured to receive a first signal on the first resource.
  • the terminal device may further include a memory for coupling with the processor, which stores program instructions and data necessary for the network side device.
  • an embodiment of the present invention provides a communication system, which is used to include a network side device and a terminal device in the foregoing device embodiment.
  • an embodiment of the present invention provides a non-volatile computer storage medium, where the non-volatile computer storage medium stores program code, where the program code includes the first aspect to the second Any of the possible methods of the method in the design.
  • FIG. 1 is a structural diagram of a communication network system according to an embodiment of the present invention.
  • FIG. 2 is a structural diagram of a communication device according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for transmitting information on a device side of a network side according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of a method for transmitting information on a terminal device side according to an embodiment of the present invention
  • FIG. 5 is a functional block diagram of an information transmission apparatus according to an embodiment of the present invention.
  • FIG. 6 is a functional block diagram of another information transmission apparatus according to an embodiment of the present invention.
  • the embodiment of the invention provides an information transmission method and device, which are used to solve the technical problem of resource waste existing in the prior art.
  • FIG. 1 is a structural diagram of a possible communication network system according to an embodiment of the present invention.
  • the communication network system includes a network side device and a plurality of terminal devices.
  • the network side device is a service network side device of the terminal device, and the service side network side device refers to the radio resource control (RRC) connection and the non-access stratum (Non-Access Stratum) for the terminal device through the wireless air interface protocol.
  • RRC radio resource control
  • Non-Access Stratum non-access stratum
  • NAS Network-side devices for services such as mobility management and security input.
  • the network side device and the terminal device can communicate through the air interface protocol.
  • terminal devices isolated terminals
  • network side device may further include other network entities, such as a network controller and/or a mobility management entity, which are not limited in the embodiment of the present invention.
  • the communication network system shown in FIG. 1 may be an existing NB-IoT, or may be a communication system similar to NB-IoT as the system evolves, so the Internet of Things or NB mentioned in the embodiment of the present invention.
  • IoT is a system of this type Generally speaking, it is not limited to the NB-IoT referred to in the prior art.
  • the network side device mentioned in this document may be in a base station (Base Transceiver Station, BTS) in GSM or Code Division Multiple Access (CDMA), or may be a Wideband Code Division Multiple (Wideband Code Division Multiple).
  • Base station (English: NodeB; NB for short) in Access, WCDMA), and may also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an access point, or a base station in a future 5G network, etc. This article is not limited.
  • the terminal device mentioned herein may be a wireless terminal device or a wired terminal device, and the wireless terminal device may be a device that provides voice and/or other service data connectivity to the user, a handheld device with wireless connection function, or Connect to other processing devices of the wireless modem.
  • the wireless terminal device can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and has a mobile terminal
  • RAN Radio Access Network
  • the computers for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • the wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, or a remote terminal. Access Terminal, User Terminal, User Agent, User Device or User Equipment.
  • FIG. 2 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
  • the communication device is, for example, the above network side device and terminal device.
  • the communication device includes a processor 10, a transmitter 20, a receiver 30, a memory 40, and an antenna 50.
  • the memory 40, the transmitter 20 and the receiver 30 and the processor 10 can be connected via a bus.
  • the memory 40, the transmitter 20, and the receiver 30 and the processor 10 may not be a bus structure, but may be other structures, such as a star structure, which is not specifically limited in the present application.
  • the processor 10 may be a general-purpose central processing unit or an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be A hardware circuit developed using a Field Programmable Gate Array (FPGA) can be a baseband processor.
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • processor 10 may include at least one processing core.
  • the memory 40 may include one or more of a read only memory (English: Read Only Memory, ROM for short), a random access memory (English: Random Access Memory, RAM), and a disk storage.
  • Memory 40 is used to store data and/or instructions needed by processor 10 to operate.
  • the number of memories 40 may be one or more.
  • the transmitter 20 and the receiver 30 may be physically independent of each other or integrated.
  • Transmitter 20 can transmit data via antenna 50.
  • Receiver 30 can receive data via antenna 50.
  • FIG. 3 is a flowchart of a method for transmitting information on the network side device side in this embodiment.
  • the method includes the following:
  • Step 101 The network side device acquires the first signal.
  • Step 102 The network side device sends the first signal on the first resource, where the first resource includes at least one time domain symbol of the nine time domain symbols of the at least one radio frame in the narrowband Internet of Things.
  • the time domain symbols include the first 3 time domain symbols of the 5th subframe, the first 3 time domain symbols of the 0th subframe, and the first 3 time domain symbols of the 9th subframe.
  • FIG. 4 a flowchart of the information transmission method on the terminal device side is shown in FIG. 4, and the method includes:
  • Step 201 The terminal device determines a first resource, where the first resource includes at least one time domain symbol of the nine time domain symbols of the at least one radio frame in the narrowband Internet of Things, and the nine time domain symbols include the fifth sub- The first 3 time domain symbols of the frame, the first 3 time domain symbols of the 0th subframe, and the first 3 time domain symbols of the 9th subframe;
  • Step 202 The terminal device receives the first signal on the first resource.
  • the first signal may include a synchronization signal and/or a system message.
  • the synchronization signal may be a PSS or an SSS.
  • the synchronization signal is a complete synchronization signal or a partial synchronization signal.
  • the first signal in step 101 may be a complete PSS or a partial PSS.
  • the first signal in step 101 may be a complete SSS or a partial SSS.
  • the first signal may include a partial synchronization signal, for example, the first signal includes a partial PSS and a partial SSS, and may also include a partial PSS and a complete SSS, and may also include a complete PSS and a partial SSS. It can also include a full PSS and a full SSS.
  • the synchronization signal is not limited to the PSS and the SSS in the present invention, and the synchronization signal may be any signal that the terminal device can complete the synchronization process according to the synchronization process, including time synchronization, frequency synchronization, and radio frame number synchronization. At least one process in the cell identity acquisition.
  • the complete synchronization signal means that the terminal device can complete the synchronization process by parsing the first signal
  • the partial synchronization signal means that the terminal device needs to analyze the first signal and other synchronization signals to complete the synchronization process.
  • the system message includes a main information block and/or at least one System Information Block (SIB).
  • SIB System Information Block
  • the main information block is a complete main information block or a part of the main information block.
  • a complete master block can convey all the information passed by the full MIB, while a partial master block can pass some of the information passed by the full MIB.
  • each SIB in the at least one SIB is a complete SIB or a partial SIB.
  • a complete SIB can pass all the information transmitted by the SIB, and a part of the SIB can transmit a complete part of the information transmitted by the SIB.
  • the first signal may include other signals, such as a paging indication signal, used to indicate a paging condition of the terminal device.
  • a paging indication signal used to indicate a paging condition of the terminal device.
  • the time domain symbol is, for example, an OFDM symbol.
  • the system evolves, it can also be a time domain symbol of other names.
  • the network side device may acquire a corresponding first signal according to a transmission period specified by the protocol, for example, when the current time is a periodic time when the PSS is sent, the PSS is acquired.
  • the first signal is only an example. In actual use, the first signal may also be other signals, the present invention. The embodiment is not specifically limited.
  • the first resource is at least one time domain symbol of the nine time domain symbols in the at least one radio frame in the narrowband Internet of Things, and the nine time domain symbols include the first three time slots of the fifth subframe.
  • the first resource is the first 3 time domain symbols of one subframe.
  • At least one of the time domain symbols for example, the first resource is one, two, or three time domain symbols in the first three time domain symbols of the fifth subframe, and may be the first three of the zero subframes.
  • One, two or three time domain symbols in the domain symbol may also be one, two or three time domain symbols in the first three time domain symbols of the subframe 9.
  • the first resource may also be at least two time domain symbols of the first three time domain symbols of different subframes, for example, the first resource is the first time domain symbol of the subframe 5 and the first subframe of the number 0 subframe.
  • Time domain symbols for example, the first resource is the first time domain symbol of the 0th subframe and the first time domain symbol of the 9th subframe, for example, the first resource is the first time domain symbol of the 5th subframe.
  • the first time domain symbol of the 0th subframe and the second time domain symbol of the 9th subframe are not listed one by one.
  • the subframe 0 of the at least one radio frame may be the first subframe in the radio frame, that is, the subframe with the highest absolute time.
  • Other situations in the embodiments of the present invention are similar to this and will not be described again.
  • the occupied time domain symbols of the first resource in different radio frames may be different.
  • the first resource is the first three time domains of the 0th subframe in the radio frame.
  • the symbol and the first three time domain symbols of the subframe No. 5 in the radio frame 1 is the first three time domain symbols of the 0th subframe in the radio frame, and the first three time slots of the fifth subframe
  • the number of the radio frame has no practical meaning, but only the time domain symbols used to indicate that the first resource is occupied in different radio frames may be different.
  • the nine time domain symbols in the at least one radio frame are the first three time domain symbols of the 0th subframe of each radio frame, the first three time domain symbols of the fifth subframe, and the double radio frame.
  • the first 3 time domain symbols of the 9th subframe are the first three time domain symbols of the 0th subframe of each radio frame, the first three time domain symbols of the fifth subframe, and the double radio frame.
  • the first signal includes at least one sub-signal, and each sub-signal may be a sequence, where the sequence may be a set of elements consisting of a general complex number; for example, the sub-signal may be a pseudo-random sequence, a Zadoff-Chu sequence, a Gold sequence, a Had code sequence, a Walsh code, an m sequence, an M sequence, or a random sequence, etc., may also be a variant of the above sequence, such as a cyclic shift, a conjugate, a sequence, a product with at least one other sequence, and at least A sequence of other additions or the like, or a combination of the above various modifications, and the like.
  • the at least one sub-signal may be the same or different.
  • the fact that at least one sub-signal is the same means that any two sub-signals are the same.
  • the difference in at least one sub-signal means that at least two sub-signals are different in at least one sub-signal.
  • each sub-signal can be carried on at least one time domain symbol.
  • the number of time domain symbols that the at least one sub-signal is carried may be the same or different.
  • the first signal includes three sub-signals, each of which is carried on one time domain symbol; or the first signal includes two sub-signals, the first sub-signal is carried on one time domain symbol, and the second sub-signal The signal is carried on two time domain symbols.
  • each sub-signal may be a Zadoff-Chu sequence, or each sub-signal is a product of a Zadoff-Chu sequence and a complex number.
  • the product of a Zadoff-Chu sequence and a complex number means that each element in the Zadoff-Chu sequence is multiplied by the complex number, and then a new sequence is obtained, and the new sequence is a sub-signal.
  • the Zadoff-Chu sequence corresponding to each sub-signal is the same. For example, if each sub-signal is a Zadoff-Chu sequence, then each sub-signal is identical. If each sub-signal is a product of a Zadoff-Chu sequence and a complex number, then the Zadoff-Chu sequence used by each sub-signal is the same. Corresponding to each sub-signal In the case where the Zadoff-Chu sequence is the same, the processing complexity of the receiving side, such as the terminal device, can be reduced.
  • Zadoff-Chu sequence corresponding to each sub-signal may also be different, which is not specifically limited in the embodiment of the present invention.
  • the two Zadoff-Chu sequences are the same, that is, the lengths of the two Zadoff-Chu sequences are the same, and the elements at each corresponding position are all the same. Otherwise, the two Zadoff-Chu sequences are considered to be different.
  • the Zadoff-Chu sequence carried on at least one time domain symbol in the first three time domain symbols of the subframe 5 may also be
  • the Zadoff-Chu sequence used for the synchronization signal carried on the last 11 time domain symbols of the subframe 5 may be the same or different.
  • the terminal device is convenient to perform unified processing on the new synchronization signal carried by the 14 time domain symbols, thereby reducing complexity.
  • each sub-signal is a product of a Zadoff-Chu sequence and a complex number
  • the reliability of the terminal device synchronization process can be ensured because of the cross-correlation of the symbol level scrambling code.
  • the complex number can be 1 and/or -1. In this case, the complexity of detecting the synchronization signal by the terminal device can be greatly reduced.
  • the length of the Zadoff-Chu sequence is an integer greater than or equal to 11. For example, if the length of the Zadoff-Chu sequence is 11, for example, the 11 elements of the Zadoff-Chu sequence can be respectively mapped to subcarrier 0 to subcarrier 10 corresponding to one time domain symbol. When the length of the Zadoff-Chu sequence is greater than or equal to 11, the reliability of the synchronization process is high.
  • Zadoff-Chu sequence is generally considered to be a sequence that satisfies the following expression:
  • L is a positive integer representing the length of the sequence
  • u is a positive integer representing the root index of the sequence
  • j is the imaginary unit
  • is the pi
  • q is an integer
  • the Zadoff-Chu sequence has a root index of 5.
  • the root index of the Zadoff-Chu sequence can also take other values according to the actual requirements, which is not specifically limited in the embodiment of the present invention.
  • the root index, e is a natural constant
  • j is an imaginary unit
  • is a pi
  • a positive integer L is the length of the Zadoff-Chu sequence
  • an integer n is the element number of the Zadoff-Chu sequence.
  • the Zadoff-Chu sequence corresponding to each sub-signal is the same, the values of u and L corresponding to each sub-signal are the same. If the Zadoff-Chu sequence corresponding to each sub-signal is not the same, the values of u and L may be different in the formula.
  • the first signal includes three sub-signals, that is, the number of the at least one sub-signal is three, and the three signals are respectively carried on the first three time-domain symbols of the fifth subframe of the at least one radio frame.
  • the first signal is, for example, a PSS.
  • the first signal includes three sub-signals respectively carried on the first three time-domain symbols of the subframe 9 of the at least one radio frame.
  • the first signal is, for example, an SSS.
  • the first signal includes three sub-signals respectively carried on the first three time domain symbols of the 0th subframe of the at least one radio frame.
  • the first signal is for example MIB or SIB.
  • the complex numbers used by the three sub-signals are (1, 1, 1), (1, 1, -1), (1, -1, 1), (1, -1, -1), ( -1,1,1), (-1,1,-1), (-1,-1,1) or (-1,-1,-1).
  • the complex number of the three sub-signals is (-1, 1, 1)
  • the sub-signal carried on the first time-domain symbol of the subframe 5 uses a complex number of -1, which is carried at 5
  • the sub-signal on the second time-domain symbol of the sub-frame uses a complex number of 1
  • the sub-signal carried on the third time-domain symbol of the sub-frame 5 uses a complex number of one.
  • the symbol level scrambling code is in the form of 1 or -1, which is advantageous for reducing the complexity of the terminal device synchronization process.
  • the first, second, and third time-domain symbols of the first three time-domain symbols of the subframe No. 5 mentioned here are arranged in the order of absolute time, that is, the first time-domain symbol is at the second time. Before the domain symbol, the second time domain symbol precedes the third time domain symbol.
  • the first time domain symbol of the subframe 5 refers to the number 0 symbol
  • the second time domain symbol of the subframe 5 refers to the number 1 symbol.
  • the third time domain symbol of the frame refers to the number 2 symbol.
  • Other situations in the embodiment of the present invention are similar to this and will not be described again.
  • the terminal device may determine the first resource according to the configuration information specified by the protocol or the pre-configured configuration information, or may determine the first resource according to the indication information sent by the network side device.
  • the first resource can be reasonably utilized to avoid waste of the first resource. Further, if the first signal is part of the synchronization signal, the length of the synchronization signal can be increased, the resources are increased, and the synchronization performance of the narrowband Internet of Things is improved.
  • an embodiment of the present invention further provides an information transmission apparatus, where the information transmission apparatus includes a function for performing network side device behavior in the foregoing method steps shown in FIG. 3 and/or FIG. 4, as shown in FIG.
  • the information transmission device includes a processing unit 301 and a transmission unit 302.
  • the processing unit 301 is configured to acquire a first signal
  • the sending unit 302 is configured to send, by using the first resource, the first signal acquired by the processing unit 301, where the first resource includes at least one radio frame in the narrowband Internet of Things.
  • At least one of the nine time domain symbols, the first three time domain symbols of the fifth subframe, the first three time domain symbols of the zero subframe, and the subframe 9 The first 3 time domain symbols.
  • the physical device corresponding to the processing unit 301 is a processor, and the physical device corresponding to the sending module is a transmitter.
  • FIG. 6 is an information transmission device according to an embodiment of the present invention, where the information transmission device is configured to perform the function of the terminal device in the foregoing method embodiment, where the device includes: a processing unit 401, configured to determine a first resource;
  • the first resource includes nine time domain symbols of at least one radio frame in the narrowband Internet of Things, and the nine time domain symbols include the first three time domain symbols of the fifth subframe, and the first three subframes of the zero subframe.
  • the receiving unit 402 is configured to receive the first signal on the first resource determined by the processing unit 401.
  • the physical device corresponding to the processing unit 401 is a processor
  • the physical device corresponding to the receiving unit 402 is a receiver
  • the first signal is a synchronization signal and/or a system message.
  • the synchronization signal is a complete synchronization signal or a partial synchronization signal
  • the system message is a complete master information block or a partial master information block.
  • the first signal includes at least one sub-signal, each of the sub-signals is a Zadoff-Chu sequence, or a product of a Zadoff-Chu sequence and a complex number.
  • the Zadoff-Chu sequence corresponding to each of the sub-signals is the same.
  • the length of the Zadoff-Chu sequence is an integer greater than or equal to 11.
  • the Zadoff-Chu sequence satisfies the following formula:
  • n 0,1,...,L-1
  • the integer u is the root index of the Zadoff-Chu sequence
  • e is a natural constant
  • j is an imaginary unit
  • For the pi, a positive integer L is the length of the Zadoff-Chu sequence, and an integer n is the element number of the sequence formed by the complex number.
  • the root index of the Zadoff-Chu sequence is 5.
  • the at least one sub-signal includes three sub-signals, where the three sub-signals are respectively carried on the first three time-domain symbols of the fifth subframe of the at least one radio frame. .
  • the sub-signals carried on the first, second, and third time domain symbols of the subframe No. 5 are respectively used as (1, 1, 1), (1) , -1, 1), (1, -1, -1), (-1, 1, 1), (-1, -1, 1) or (-1, -1, -1).
  • embodiments of the present invention can be provided as a method, system, or computer program product.
  • embodiments of the invention may be in the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • embodiments of the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种信息传输方法及装置,该方法包括:网络侧设备获取第一信号;所述网络侧设备在第一资源上发送所述第一信号;其中,所述第一资源包括窄带物联网中的至少一个无线帧的9个时域符号中的至少一个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号。通过该方法,可以避免资源浪费。

Description

一种信息传输方法及装置 技术领域
本发明涉及通信技术领域,尤其涉及一种信息传输方法及装置。
背景技术
窄带物联网(Narrow Band Internet of Things,NB-IoT)构建于蜂窝网络,最少可以只消耗大约180KHz的带宽,可直接部署于全球移动通信***(Global System for Mobile Communication,GSM)网络、通用移动通信***(Universal Mobile Telecommunications System,UMTS)网络或长期演进(Long Term Evolution,LTE)网络,以降低部署成本、实现平滑升级。NB-IoT使用授权频段,可采取带内(in-band)、保护带(guard-band)或独立载波(standalone)等三种部署方式,与现有网络共存。
在现有技术中,三种部署方式在同步信号,例如主同步信号(Primary Synchronization Signal,PSS)、辅同步信号(Secondary Synchronization Signal,SSS)以及主信息块(Master Information Block,MIB)的资源映射上不作区分,均按照带内模式进行资源映射,即只使用5号子帧的后11个正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号发送PSS,只使用9号子帧的后11个OFDM符号发送SSS,只使用0号子帧的后11个OFDM符号发送MIB。
5号子帧、0号子帧和9号子帧的前3个OFDM符号在保护带和独立载波两种部署方式下处于空闲状态,所以造成资源浪费。
发明内容
本发明实施例提供一种信息传输方法及装置,用以解决现有技术中存在的资源浪费的技术问题。
第一方面,本发明实施例提供一种信息传输方法,该方法包括:网络侧设备第一信号;网络侧设备在第一资源上发送所述第一信号;其中,所述第一资源包括窄带物联网中的至少一个无线帧的9个时域符号中的至少一个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号。因为利用空闲的时域符号发送第一信号,一方面有效利用了空闲资源,避免资源浪费,另一方面可以提高***的信息传输性能。
第二方面,本发明实施例提供一种信息传输方法,该方法包括:终端设备确定第一资源,其中,所述第一资源包括窄带物联网中的至少一个无线帧的9个时域符号中的至少一个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号。然后终端设备在所述第一资源上接收第一信号。因为利用空闲的时域符号传输第一信号,一方面有效利用了空闲资源,避免资源浪费,另一方面可以提高***的信息传输性能。
在本申请的上述实施例中,在一个可能的设计中,第一信号包括同步信号和***消息中的至少一项。通过该方法,可以提升同步信号和/或***消息的传输性能。
在本申请的上述实施例中,在一个可能的设计中,同步信号为完整的同步信号或部分的同步信号;和/或
所述***消息为完整的主信息块或部分的主信息块。通过该方法,既可以单独设计同步信号和/或***消息,也可以扩展现有的同步信号和/或***消息。
在本申请的上述实施例中,在一个可能的设计中,所述同步信号为主同步信号或辅同步信号。通过该方法,可以提升现有通信***的同步性能。
在本申请的上述实施例中,在一个可能的设计中,所述第一信号包括至少一个子信号,每个所述子信号为一个Zadoff-Chu序列,或为一个Zadoff-Chu序列与一个复数的乘积。通过该设计,同步信号的互相关性较好,可以得到较好的同步性能和可靠性。
在本申请的上述实施例中,在一个可能的设计中,每个所述子信号对应的Zadoff-Chu序列相同。通过该设计,可以降低接收侧的处理复杂度。
在本申请的上述实施例中,在一个可能的设计中,所述Zadoff-Chu序列的长度为大于或等于11的整数。通过该设计,可以获得较好的同步性能。
在本申请的上述实施例中,在一个可能的设计中,所述Zadoff-Chu序列满足以下公式:
e-jπun(n+1)/L,n=0,1,...,L-1,其中整数u为所述Zadoff-Chu序列的根指数,e为自然常数,j为虚数单位,π为圆周率,正整数L为所述Zadoff-Chu序列的长度,整数n为所述Zadoff-Chu序列的元素编号。通过该设计,第一信号的互相关性较好,所以可以获得较好的同步性能。
在本申请的上述实施例中,在一个可能的设计中,所述Zadoff-Chu序列的根指数为5。在根指数为5的情况下,第一信号的互相关性较好,所以可以获得较好的同步性能;而且现有的NB-IoT中PSS也是使用根指数为5的Zadoff-Chu序列,本实施例中继续使用根指数5的Zadoff-Chu序列可以降低终端的处理复杂度。
在本申请的上述实施例中,在一个可能的设计中,所述至少一个子信号包括3个子信号,所述3个子信号分别承载在所述至少一个无线帧的5号子帧的前3个时域符号上。通过该设计,因为现有的NB-IoT中PSS承载在每个无线帧的5号子帧的后11个时域符号上,本实施例使用5号子帧的前3个时域符号,可以使得终端设备检测一个完整的5号子帧得到PSS信号,有利于提高同步性能。
在本申请的上述实施例中,在一个可能的设计中,承载在所述5号子帧的第1、2、3个时域符号上的子信号使用的复数分别为(1,1,1)、(1,-1,1)、(1,-1,-1)、(-1,1,1)、(-1,-1,1)或(-1,-1,-1)。通过该设计,可以减小终端设备同步过程的复杂度;且上述复数选择可以与现有的NB-IoT中PSS使用的复数较好结合,即可以通过符号级的扰码保持PSS的序列相关性,保证良好的同步性能。
第三方面,本发明实施例提供一种信息传输装置,该信息传输装置用于实现上述方法设计中网络侧设备行为的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中,该信息传输装置中包括处理器和发射器,所述处理器被配置为支持网络侧设备执行上述方法中相应的功能。所述发射器用于支持网络侧设备和终端设备之间的通信,向终端设备发送上述方法中所涉及的信息或指令。所述网络侧设备还可以包 括存储器,所述存储器用于与处理器耦合,其保存网络侧设备必要的程序指令和数据。
第四方面,本发明实施例提供一种终端设备。该终端设备具有实现上述方法设计中终端设备行为的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。所述模块可以是软件和/或硬件。
在一个可能的设计中,该终端设备包括:处理器和接收器。所述处理器用于确定第一资源,所述接收器用于在所述第一资源上接收第一信号。所述终端设备还可以包括存储器,所述存储器用于与处理器耦合,其保存网络侧设备必要的程序指令和数据。
第五方面,本发明实施例提供了一种通信***,用于包括上述装置实施例中的网络侧设备与终端设备。
第六方面,本发明实施例提供一种非易失性计算机存储介质,所述非易失性计算机存储介质上存储有程序代码,所述程序代码包括用于实现所述第一方面至第二方面中的任一种可能的设计中的方法的指令。
附图说明
图1为本发明实施例提供的一种通信网络***的结构图;
图2为本发明实施例提供的一种通信设备的结构图;
图3为本发明实施例提供的一种网络侧设备侧的信息传输方法的流程图;
图4为本发明实施例提供的一种终端设备侧的信息传输方法的流程图;
图5为本发明实施例提供的一种信息传输装置的功能框图;
图6为本发明实施例提供的另一种信息传输装置的功能框图。
具体实施方式
本发明实施例提供一种信息传输方法及装置,用以解决现有技术中存在的资源浪费的技术问题。
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行描述。
本发明实施例提供的一种信息传输方法,该方法可以应用于通信网络***中。请参考图1所示,为本发明实施例提供的一种可能的通信网络***结构图。如图1所示的结构,该通信网络***包括网络侧设备和多个终端设备。网络侧设备为终端设备的服务网络侧设备,服务侧网络侧设备是指该通过无线空口协议为终端设备提供无线资源控制(Radio Resource Control,RRC)连接、非接入层(Non-Access Stratum,简称:NAS)移动性管理和安全性输入等服务的网络侧设备。网络侧设备和终端设备可以通过空口协议进行通信。
应理解,图1所示的通信***中仅示出了四个终端设备(孤立终端)和一个网络侧设备的情形,但本发明并不限于此。网络侧设备的覆盖范围内还可以包括其它数量的终端设备。进一步可选的,图1中网络侧设备和终端设备所在的通信***还可以包括网络控制器和/或移动管理实体等其它网络实体,本发明实施例不做限定。
应理解,图1所示的通信网络***可以为现有的NB-IoT,也可以是随着***演进与NB-IoT类似的通信***,所以本发明实施例中提到的物联网或者NB-IoT是这一类***的 统称,并不限定于现有中所称的NB-IoT。
本文中提到的网络侧设备,可以是GSM或码分多址(Code Division Multiple Access,CDMA)中的基站(Base Transceiver Station,BTS)中,也可以是宽带码分多址(Wideband Code Division Multiple Access,WCDMA)中的基站(英文:NodeB;简称NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者未来5G网络中的基站等,本文中并不限定。
本文中提到的终端设备,可以是无线终端设备也可以是有线终端设备,无线终端设备可以是指向用户提供语音和/或其他业务数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,无线终端设备可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol,SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。无线终端设备也可以称为***、订户单元(Subscriber Unit)、订户站(Subscriber Station),移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)。
另外,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本文中的一些英文简称为以LTE***为例对本发明实施例进行的描述,其可能随着网络的演进发生变化,具体演进可以参考相应标准中的描述。
接下来请参考图2,图2为本发明实施例提供的通信设备的可能的结构图。该通信设备例如为上述网络侧设备、终端设备。如图2所示,该通信设备包括:处理器10、发射器20、接收器30、存储器40和天线50。存储器40、发射器20和接收器30和处理器10可以通过总线进行连接。当然,在实际运用中,存储器40、发射器20和接收器30和处理器10之间可以不是总线结构,而可以是其它结构,例如星型结构,本申请不作具体限定。
可选的,处理器10具体可以是通用的中央处理器或特定应用集成电路(英文:Application Specific Integrated Circuit,简称:ASIC),可以是一个或多个用于控制程序执行的集成电路,可以是使用现场可编程门阵列(英文:Field Programmable Gate Array,简称:FPGA)开发的硬件电路,可以是基带处理器。
可选的,处理器10可以包括至少一个处理核心。
可选的,存储器40可以包括只读存储器(英文:Read Only Memory,简称:ROM)、随机存取存储器(英文:Random Access Memory,简称:RAM)和磁盘存储器中的一种或多种。存储器40用于存储处理器10运行时所需的数据和/或指令。存储器40的数量可以为一个或多个。
可选的,发射器20和接收器30在物理上可以相互独立也可以集成在一起。发射器20可以通过天线50进行数据发送。接收器30可以通过天线50进行数据接收。
请参考图3所示,为本实施例中网络侧设备侧的信息传输方法的流程图。该方法包括以下内容:
步骤101:网络侧设备获取第一信号;
步骤102:网络侧设备在第一资源上发送所述第一信号;其中,第一资源包括窄带物联网中的至少一个无线帧的9个时域符号中的至少一个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号。
相应的,终端设备侧的信息传输方法的流程图如图4所示,该方法包括:
步骤201:终端设备确定第一资源;其中,第一资源包括窄带物联网中的至少一个无线帧的9个时域符号中的至少一个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号;
步骤202:终端设备在所述第一资源上接收第一信号。
可选的,第一信号可以包括同步信号和/或***消息。
可选的,同步信号可以是PSS,也可以是SSS。
可选的,同步信号为完整的同步信号或部分的同步信号。举例来说,若同步信号为PSS,那么步骤101中的第一信号就可以是完整的PSS,也可以是部分的PSS。再例如,若同步信号为SSS,那么步骤101中的第一信号就可以是完整的SSS,也可以是部分的SSS。
可选的,第一信号可以包括部分的同步信号,比如,第一信号包括部分的PSS和部分的SSS,也可以包括部分的PSS和完整的SSS,也可以包括完整的PSS和部分的SSS,也可以包括完整的PSS和完整的SSS。
可选的,所述同步信号在本发明中不限制于PSS和SSS,同步信号可以是任何,终端设备能根据其完成同步过程的信号,同步过程包括时间同步、频率同步、无线帧号同步、小区标识获取中的至少一个过程。
需要说明的是,完整的同步信号是指终端设备通过解析第一信号就可以完成同步过程,部分的同步信号是指终端设备需要通过解析第一信号和其它同步信号才能完成同步过程。
可选的,***消息包括主信息块和/或至少一个***消息块(System Information Block,SIB)。
可选的,主信息块为完整的主信息块或部分的主信息块。举例来说,完整的主信息块可以传递完整MIB所传递的所有信息,而部分的主信息块可以传递完整MIB所传递的部分信息。
可选的,所述至少一个SIB中的每个SIB,为完整的SIB或部分的SIB。举例来说,完整的SIB可以传递完整的该SIB所传递的所有信息,而部分的SIB可以传递完整的该SIB所传递的部分信息。
可选的,第一信号可以包括其它信号,如寻呼指示信号,用来指示终端设备的寻呼情况。
可选的,时域符号例如为OFDM符号。当然,随着***演进,也可以是其它名称的时域符号。
可选的,在步骤101中,网络侧设备可以根据协议规定的发送周期,获取相应的第一信号,例如当当前时刻为发送PSS的周期时刻时,则获取PSS。
以上对第一信号的限定仅为举例,在实际运用中,第一信号也可以是其它信号,本发 明实施例不作具体限定。
可选的,第一资源为窄带物联网中的至少一个无线帧中的9个时域符号中的至少一个时域符号,而所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号,具体的,在一个无线帧中,第一资源为一个子帧的前3个时域符号中的至少一个时域符号,例如第一资源为5号子帧的前3个时域符号中的1个、2个或3个时域符号,也可以是0号子帧的前3个时域符号中的1个、2个或3个时域符号,也可以是9号子帧的前3个时域符号中的1个、2个或3个时域符号。当然,第一资源也可以是不同子帧的前3个时域符号的至少两个时域符号,例如第一资源为5号子帧的第1个时域符号以及0号子帧的第1个时域符号,例如第一资源为0号子帧的第1个时域符号以及9号子帧的第1个时域符号,例如第一资源为5号子帧的第1个时域符号、0号子帧的第1个时域符号以及9号子帧的第2个时域符号。为了说明书的简洁,其它组合情况就不再一一列举。
示例的,所述至少一个无线帧的0号子帧,可以是该无线帧中的第1个子帧,即绝对时间最靠前的子帧。本发明实施例中的其它情况与此类似,不再赘述。
可选的,第一资源在不同无线帧内的占据的时域符号可以是不同的,比如,在无线帧0中,第一资源为该无线帧内的0号子帧的前3个时域符号和5号子帧的前3个时域符号,在无线帧1中,第一资源为该无线帧内的0号子帧的前3个时域符号、5号子帧的前3个时域符号和9号子帧的前3个时域符号。上述例子中,无线帧的编号没有实际意义,只是用来说明第一资源在不同无线帧内的占据的时域符号可以是不同的。
可选的,至少一个无线帧中的9个时域符号为每个无线帧的0号子帧的前3个时域符号、5号子帧的前3个时域符号,和双数无线帧的9号子帧的前3个时域符号。
可选的,第一信号包括至少一个子信号,每个子信号可以是一段序列,该序列可以是由一般复数组成的元素集合;比如,所述子信号可以为伪随机序列、Zadoff-Chu序列、Gold序列、哈德码序列、Walsh码、m序列、M序列或随机序列等,也可以是上述序列的变形,如循环移位、共轭、变序、与至少一个其它序列的乘积、与至少一个其它序列相加等,或者上述多个变形的结合等。
可选的,所述至少一个子信号可以是相同的,也可以是不同。至少一个子信号相同是指,任意两个子信号均相同。至少一个子信号不同是指,至少一个子信号中存在至少两个子信号不同的。
可选的,每个子信号可以承载在至少一个时域符号上。所述至少一个子信号被承载的时域符号数可以是相同的也可以是不同的。比如,第一信号包括3个子信号,每个子信号均承载在1个时域符号上;或者,第一信号包括2个子信号,第一个子信号承载在1个时域符号上,第二个子信号承载在2个时域符号上。
可选的,若第一信号为同步信号,那么每个子信号可以为一个Zadoff-Chu序列,或者每个子信号为一个Zadoff-Chu序列与一个复数的乘积。
需要说明的是,一个Zadoff-Chu序列与一个复数的乘积,是指Zadoff-Chu序列中每个元素均乘以该复数,然后得到一个新的序列,该新的序列即为一个子信号。
可选的,每个子信号对应的Zadoff-Chu序列相同。例如,若每个子信号为一个Zadoff-Chu序列,那么就表示每个子信号相同。若每个子信号为一个Zadoff-Chu序列与一个复数的乘积,那么每个子信号使用的Zadoff-Chu序列是相同的。在每个子信号对应的 Zadoff-Chu序列相同的情况下,可以降低接收侧,例如终端设备的处理复杂度。
当然,在实际运用中,每个子信号对应的Zadoff-Chu序列也可以是不相同的,本发明实施例不作具体限定。
需要说明的是,两个Zadoff-Chu序列相同,是指两个Zadoff-Chu序列的长度相同,且每个对应位置上的元素也全部相同,否则,认为两个Zadoff-Chu序列不相同。
可选的,若第一信号为部分的同步信号,例如为部分的PSS,那么承载在5号子帧的前3个时域符号中的至少一个时域符号上的Zadoff-Chu序列也可以与承载在5号子帧的后11个时域符号上的同步信号使用的Zadoff-Chu序列可以相同,也可以不相同。在两者相同的情况下,便于终端设备对由14个时域符号承载的新的同步信号做统一处理,降低复杂度。
可选的,在每个子信号为一个Zadoff-Chu序列和一个复数的乘积时,因为符号级扰码的互相关性,可以保证终端设备同步过程的可靠性。
可选的,复数可以是1和/或-1。在该种情况下,可以大幅降低终端设备检测同步信号的复杂度。
可选的,Zadoff-Chu序列的长度为大于或等于11的整数。举例来说,例如Zadoff-Chu序列的长度为11,那么Zadoff-Chu序列的11个元素可以分别映射在一个时域符号对应的子载波0至子载波10上。在Zadoff-Chu序列的长度大于或等于11时,同步过程的可靠性较高。
现有的学术定义中,一般认为Zadoff-Chu序列为满足以下表达式的序列:
e-jπun(n+1+2q)/L,其中的L为正整数,表示序列的长度;u为正整数,表示序列的根指数;j为虚数单位,π为圆周率;q为整数;n为整数,表示序列元素编号,取值0到L-1。
可选的,Zadoff-Chu序列的根指数为5。
当然,在实际运用中,Zadoff-Chu序列的根指数也可以根据实际需求取其它值,本发明实施例并不作具体限定。
在一个可能的例子中,Zadoff-Chu序列满足以下公式:e-jπun(n+1)/L,n=0,1,...,L-1,其中整数u为所述Zadoff-Chu序列的根指数,e为自然常数,j为虚数单位,π为圆周率,正整数L为所述Zadoff-Chu序列的长度,整数n为所述Zadoff-Chu序列的元素编号。
需要说明的是,在每个子信号对应的Zadoff-Chu序列相同的情况下,每个子信号对应的u和L的取值相同。若每个子信号对应的Zadoff-Chu序列不相同的情况下,在该公式中,u和L的取值可以是不相同的。
可选的,第一信号包括3个子信号,即至少一个子信号的数量为3,这3个信号分别承载在至少一个无线帧的5号子帧的前3个时域符号上。在该种情况下,第一信号例如为PSS。
可选的,第一信号包括3个子信号,这3个信号分别承载在至少一个无线帧的9号子帧的前3个时域符号上。在该种情况下,第一信号例如为SSS。
可选的,第一信号包括3个子信号,这3个信号分别承载在至少一个无线帧的0号子帧的前3个时域符号上。在该种情况下,第一信号例如为MIB或SIB。
可选的,这3个子信号使用的复数分别为(1,1,1)、(1,1,-1)、(1,-1,1)、(1,-1,-1)、(-1,1,1)、(-1,1,-1)、(-1,-1,1)或(-1,-1,-1)。举例来说,当这3个子信号使用的复数为(-1,1,1)时,承载在5号子帧的第1个时域符号上的子信号使用的复数为-1,承载在5号子帧的第2个时域符号上的子信号使用的复数为1,承载在5号子帧的第3个时域符号上的子信号使用的复数为1。在该种情况下,符号级的扰码是1或-1的形式,有利于减小终端设备同步过程的复杂度。这里提到的5号子帧的前3个时域符号的第1、第2、第3个时域符号,是按照绝对时间的顺序排列的,即第1个时域符号在第2个时域符号之前,第2个时域符号在第3个时域符号之前。比如,在窄带物理网***中,所述5号子帧的第1个时域符号指0号符号,所述5号子帧的第2个时域符号指1号符号,所述5号子帧的第3个时域符号指2号符号。本发明实施例中其它情况与此类似,不再赘述。
可选的,在步骤201中,终端设备可以根据协议规定或者预先配置的配置信息确定第一资源,也可以是根据网络侧设备发送的指示信息确定第一资源。
由以上描述可以看出,通过本发明实施例中的方案,可以合理利用第一资源,避免第一资源浪费。进一步,若第一信号为部分的同步信号,那么还可以使得同步信号的长度增加,资源增多,提高窄带物联网的同步性能。
基于同一发明构思,本发明实施例还提供一种信息传输装置,该信息传输装置包括用于执行前述图3和/或图4所示方法步骤中的网络侧设备行为的功能,如图5所示,该信息传输装置包括处理单元301以及发送单元302。
其中,处理单元301用于获取第一信号,发送单元302,用于在第一资源上发送处理单元301获取的第一信号,其中,所述第一资源包括窄带物联网中的至少一个无线帧的9个时域符号中的至少一个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号。
相对应的,图5所示的实施例中,处理单元301对应的实体设备为处理器,发送模块对应的实体设备为发射器。
图6为本发明实施例提供的一种信息传输装置,该信息传输装置用于执行上述方法实施例中的终端设备行为的功能,该装置包括:处理单元401,用于确定第一资源;其中,所述第一资源包括窄带物联网中的至少一个无线帧的9个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号;接收单元402,用于在处理单元401确定的第一资源上接收第一信号。
相对应的,图6所示的实施例中,处理单元401对应的实体设备为处理器,接收单元402对应的实体设备为接收器。
可选的,在上述装置实施例中,所述第一信号为同步信号和/或***消息。
可选的,在上述装置实施例中,所述同步信号为完整的同步信号或部分的同步信号;和/或
所述***消息为完整的主信息块或部分的主信息块。
可选的,在上述装置实施例中,第一信号包括至少一个子信号,每个所述子信号为一个Zadoff-Chu序列,或为一个Zadoff-Chu序列与一个复数的乘积。
可选的,在上述装置实施例中,,每个所述子信号对应的Zadoff-Chu序列相同。
可选的,在上述装置实施例中,,所述Zadoff-Chu序列的长度为大于或等于11的整数。
可选的,在上述装置实施例中,,所述Zadoff-Chu序列满足以下公式:
e-jπun(n+1)/L,n=0,1,...,L-1,其中整数u为所述Zadoff-Chu序列的根指数,e为自然常数,j为虚数单位,π为圆周率,正整数L为所述Zadoff-Chu序列的长度,整数n为所述复数形成的序列的元素编号。
可选的,在上述装置实施例中,,所述Zadoff-Chu序列的根指数为5。
可选的,在上述装置实施例中,,所述至少一个子信号包括3个子信号,所述3个子信号分别承载在所述至少一个无线帧的5号子帧的前3个时域符号上。
可选的,在上述装置实施例中,,承载在所述5号子帧的第1、2、3个时域符号上的子信号使用的复数分别为(1,1,1)、(1,-1,1)、(1,-1,-1)、(-1,1,1)、(-1,-1,1)或(-1,-1,-1)。
前述实施例中的信息传输方法中的各种变化方式和具体实例同样适用于本实施例的信息传输装置以及图2中的通信设备,通过前述对信息传输方法的详细描述,本领域技术人员可以清楚的知道本实施例中信息传输装置以及图2中的通信设备的实施方法,所以为了说明书的简洁,在此不再详述。
本领域内的技术人员应明白,本发明的实施例可提供为方法、***、或计算机程序产品。因此,本发明实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本发明实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
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 (36)

  1. 一种信息传输方法,其特征在于,包括:
    网络侧设备获取第一信号;
    所述网络侧设备在第一资源上发送所述第一信号;
    其中,所述第一资源包括窄带物联网中的至少一个无线帧的9个时域符号中的至少一个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号。
  2. 如权利要求1所述的方法,其特征在于,所述第一信号包括同步信号和***消息中的至少一项。
  3. 如权利要求2所述的方法,其特征在于,所述同步信号为完整的同步信号或部分的同步信号;和/或
    所述***消息为完整的主信息块或部分的主信息块。
  4. 如权利要求1至3中任一项权利要求所述的方法,其特征在于,所述第一信号包括至少一个子信号,每个所述子信号为一个Zadoff-Chu序列,或为一个Zadoff-Chu序列与一个复数的乘积。
  5. 如权利要求4所述的方法,其特征在于,每个所述子信号对应的Zadoff-Chu序列相同。
  6. 如权利要求4或5所述的方法,其特征在于,所述Zadoff-Chu序列的长度为大于或等于11的整数。
  7. 如权利要求4至6中任一项权利要求所述的方法,其特征在于,所述Zadoff-Chu序列满足以下公式:
    e-jπun(n+1)/L,n=0,1,...,L-1,其中整数u为所述Zadoff-Chu序列的根指数,e为自然常数,j为虚数单位,π为圆周率,正整数L为所述Zadoff-Chu序列的长度,整数n为所述Zadoff-Chu序列的元素编号。
  8. 如权利要求4至7中任一项权利要求所述的方法,其特征在于,所述Zadoff-Chu序列的根指数为5。
  9. 如权利要求4至8中任一项权利要求所述的方法,其特征在于,所述至少一个子信号包括3个子信号,所述3个子信号分别承载在所述至少一个无线帧的5号子帧的前3个时域符号上。
  10. 如权利要求9所述的方法,其特征在于,承载在所述至少一个无线帧的5号子帧的第1、2、3个时域符号上的子信号使用的复数分别为(1,1,1)、(1,-1,1)、(1,-1,-1)、(-1,1,1)、(-1,-1,1)或(-1,-1,-1)。
  11. 一种信息传输方法,其特征在于,包括:
    终端设备确定第一资源,其中,所述第一资源包括窄带物联网中的至少一个无线帧的9个时域符号中的至少一个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号;
    所述终端设备在所述第一资源上接收第一信号。
  12. 如权利要求11所述的方法,其特征在于,所述第一信号包括至少一个子信号,每 个所述子信号为一个Zadoff-Chu序列,或为一个Zadoff-Chu序列与一个复数的乘积。
  13. 如权利要求12所述的方法,其特征在于,所述至少一个子信号包括3个子信号,所述3个子信号分别承载在所述至少一个无线帧的5号子帧的前3个时域符号上。
  14. 如权利要求13所述的方法,其特征在于,承载在所述5号子帧的第1、2、3个时域符号上的子信号使用的复数分别为(1,1,1)、(1,-1,1)、(1,-1,-1)、(-1,1,1)、(-1,-1,1)或(-1,-1,-1)。
  15. 如权利要求12至14中任一项权利要求所述的方法,其特征在于,所述至少一个子信号中的每个子信号对应的Zadoff-Chu序列相同。
  16. 如权利要求12至15中任一项权利要求所述的方法,其特征在于,所述Zadoff-Chu序列满足以下公式:
    e-jπun(n+1)/L,n=0,1,...,L-1,其中整数u为所述Zadoff-Chu序列的根指数,e为自然常数,j为虚数单位,π为圆周率,正整数L为所述Zadoff-Chu序列的长度,整数n为所述Zadoff-Chu序列的元素编号。
  17. 如权利要求12至16中任一项权利要求所述的方法,其特征在于,所述Zadoff-Chu序列的根指数为5。
  18. 如权利要求12至17中任一项权利要求所述的方法,其特征在于,所述Zadoff-Chu序列的长度为大于或等于11的整数。
  19. 一种信息传输装置,其特征在于,包括:
    处理单元,用于获取第一信号;
    发送单元,用于在第一资源上发送所述处理单元获取的第一信号;
    其中,所述第一资源包括窄带物联网中的至少一个无线帧的9个时域符号中的至少一个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号。
  20. 如权利要求19所述的装置,其特征在于,所述处理单元获取的第一信号包括同步信号和***消息中的至少一项。
  21. 如权利要求20所述的装置,其特征在于,所述同步信号为完整的同步信号或部分的同步信号;和/或
    所述***消息为完整的主信息块或部分的主信息块。
  22. 如权利要求19至21中任一项权利要求所述的装置,其特征在于,所述处理单元获取的第一信号包括至少一个子信号,每个所述子信号为一个Zadoff-Chu序列,或为一个Zadoff-Chu序列与一个复数的乘积。
  23. 如权利要求22所述的装置,其特征在于,每个所述子信号对应的Zadoff-Chu序列相同。
  24. 如权利要求22或23所述的装置,其特征在于,所述Zadoff-Chu序列的长度为大于或等于11的整数。
  25. 如权利要求22至24中任一项权利要求所述的装置,其特征在于,所述Zadoff-Chu序列满足以下公式:
    e-jπun(n+1)/L,n=0,1,...,L-1,其中整数u为所述Zadoff-Chu序列的根指 数,e为自然常数,j为虚数单位,π为圆周率,正整数L为所述Zadoff-Chu序列的长度,整数n为所述复数形成的序列的元素编号。
  26. 如权利要求22至25中任一项权利要求所述的装置,其特征在于,所述Zadoff-Chu序列的根指数为5。
  27. 如权利要求22至26中任一项权利要求所述的装置,其特征在于,所述至少一个子信号包括3个子信号,所述3个子信号分别承载在所述至少一个无线帧的5号子帧的前3个时域符号上。
  28. 如权利要求27所述的装置,其特征在于,承载在所述5号子帧的第1、2、3个时域符号上的子信号使用的复数分别为(1,1,1)、(1,-1,1)、(1,-1,-1)、(-1,1,1)、(-1,-1,1)或(-1,-1,-1)。
  29. 一种数据传输装置,其特征在于,包括:
    处理单元,用于确定第一资源;其中,所述第一资源包括窄带物联网中的至少一个无线帧的9个时域符号,所述9个时域符号包括5号子帧的前3个时域符号、0号子帧的前3个时域符号以及9号子帧的前3个时域符号;
    接收单元,用于在所述处理单元确定的第一资源上接收第一信号。
  30. 如权利要求29所述的装置,其特征在于,所述第一信号包括至少一个子信号,每个所述子信号为一个Zadoff-Chu序列,或为一个Zadoff-Chu序列与一个复数的乘积。
  31. 如权利要求30所述的装置,其特征在于,所述至少一个子信号包括3个子信号,所述3个子信号分别承载在所述至少一个无线帧的5号子帧的前3个时域符号上。
  32. 如权利要求31所述的装置,其特征在于,承载在所述5号子帧的第1、2、3个时域符号上的子信号使用的复数分别为(1,1,1)、(1,-1,1)、(1,-1,-1)、(-1,1,1)、(-1,-1,1)或(-1,-1,-1)。
  33. 如权利要求30至32中任一项权利要求所述的装置,其特征在于,所述至少一个子信号中的每个子信号对应的Zadoff-Chu序列相同。
  34. 如权利要求30至33中任一项权利要求所述的装置,其特征在于,所述Zadoff-Chu序列满足以下公式:
    e-jπun(n+1)/L,n=0,1,...,L-1,其中整数u为所述Zadoff-Chu序列的根指数,e为自然常数,j为虚数单位,π为圆周率,正整数L为所述Zadoff-Chu序列的长度,整数n为所述Zadoff-Chu序列的元素编号。
  35. 如权利要求30至34中任一项权利要求所述的装置,其特征在于,所述Zadoff-Chu序列的根指数为5。
  36. 如权利要求30至35中任一项权利要求所述的装置,其特征在于,所述Zadoff-Chu序列的长度为大于或等于11的整数。
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CN103379072A (zh) * 2012-04-20 2013-10-30 电信科学技术研究院 一种信号传输方法及装置
WO2015080649A1 (en) * 2013-11-27 2015-06-04 Telefonaktiebolaget L M Ericsson (Publ) Sending and detecting synchronization signals and an associated information message
WO2015170941A1 (ko) * 2014-05-09 2015-11-12 엘지전자 주식회사 무선 통신 시스템에서 단말 간 직접 통신을 위한 동기화 신호를 전송하는 방법 및 이를 위한 장치

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CN103379072A (zh) * 2012-04-20 2013-10-30 电信科学技术研究院 一种信号传输方法及装置
WO2015080649A1 (en) * 2013-11-27 2015-06-04 Telefonaktiebolaget L M Ericsson (Publ) Sending and detecting synchronization signals and an associated information message
WO2015170941A1 (ko) * 2014-05-09 2015-11-12 엘지전자 주식회사 무선 통신 시스템에서 단말 간 직접 통신을 위한 동기화 신호를 전송하는 방법 및 이를 위한 장치

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