WO2018010509A1 - Procédé d'émission et de réception de signal d'accès et équipement associé - Google Patents

Procédé d'émission et de réception de signal d'accès et équipement associé Download PDF

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WO2018010509A1
WO2018010509A1 PCT/CN2017/087808 CN2017087808W WO2018010509A1 WO 2018010509 A1 WO2018010509 A1 WO 2018010509A1 CN 2017087808 W CN2017087808 W CN 2017087808W WO 2018010509 A1 WO2018010509 A1 WO 2018010509A1
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Prior art keywords
signal
access
identifier
indication information
different
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PCT/CN2017/087808
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English (en)
Chinese (zh)
Inventor
陈润华
高秋彬
拉盖施
苏昕
李辉
黄秋萍
宋扬
李传军
王蒙军
杨宇
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电信科学技术研究院
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Publication of WO2018010509A1 publication Critical patent/WO2018010509A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for transmitting and receiving an access signal and related devices.
  • the wireless communication system includes a network node and a user equipment (User Equipment, UE). Downlink transmission and uplink transmission between a network station and a UE in a wireless communication system. One or more network sites are included in the wireless communication system.
  • UE User Equipment
  • the UE In order to access the network, the UE must find at least one network site after accessing the network and access the network through the network site. If a wireless communication system includes a plurality of network sites, the UE can access through any one of the plurality of network sites.
  • a network site in a cellular network may be configured as a cell, each cell independently transmits a signal, and the UE detects signals of different cells and selects a cell to access the network. This process is called initial access.
  • the initial synchronization information is provided by a synchronous (SYNC) signal, and the SYNC signal includes two parts, a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (Secondary). Synchronization Signal, SSS).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • the UE and the cell implement frequency domain and time domain synchronization through PSS/SSS. Each cell sends its own PSS/SSS.
  • a cell access is selected. For example, the UE accesses the best cell according to the PSS/SSS selection signal of each cell.
  • the bandwidth of the PSS/SSS in the LTE system is 6 physical resource blocks (PRBs), that is, 900 kHz, and the PSS/SSS restriction is transmitted at the center of the system bandwidth of each cell, and each cell sends a PSS/SSS.
  • PRBs physical resource blocks
  • the system bandwidth of a cell has many possible values, including 1.4MHz, 5MHz, 10MHz, 15MHz and 20MHz.
  • the UE does not know the system bandwidth of the cell before performing cell access, and does not know the location of the frequency domain center of the cell.
  • the UE searches for the center frequency of all possible cells with an accuracy of 100 kHz.
  • the UE If the UE detects a PSS/SSS, the UE successfully detects the center frequency of the cell, and then the UE demodulates the master information block of the cell to obtain information about the bandwidth of the cell system, thereby obtaining the cell frequency. Start and end positions.
  • a network site may have one or more transmit antennas, and the PSS/SSS is shaped and transmitted on multiple transmit antennas. Since the design purpose of PSS/SSS is to make all UEs in the cell accessible, the design of the shaping scheme should ensure wide shaping to ensure that PSS/SSS can be received by all UEs in the cell. Therefore, one cell sends a PSS/SSS.
  • Each cell in the cellular system has an independent cell identity (Cell ID), and other signals within the cell are a function of the cell identity of the cell.
  • Cell ID the base sequence of the PSS/SSS is a function of the cell identity.
  • the UE blindly checks the PSS/SSS of each cell, and obtains the cell identity of the cell according to the PSS/SSS of the cell.
  • the basic sequence of the PSS is a function of the first ID (represented as nID1)
  • the SSS basic sequence is a function of the second ID (represented as nID2)
  • TRP Transmit/Receive Point
  • the network deployment of the future communication system will be more flexible.
  • One cell may have one or more TRPs, each TRP covers a smaller range, and multiple TRPs jointly provide coverage of the entire cell.
  • the UE is initially synchronized and accessed from a TRP, rather than from all TRPs.
  • the future communication system may use a large number of antenna units, which are represented as massive multiple input multiple output (MIMO), which generates a narrow beam by antenna shaping, and a TRP generates many beams. Each beam points in a different direction.
  • MIMO massive multiple input multiple output
  • the embodiments of the present invention provide a method for transmitting and receiving an access signal and related devices, which are used to provide a solution for implementing an access process of a UE in a future communication system.
  • an embodiment of the present invention provides an access signal sending method, including: a sending device generates at least one access signal, where each of the access signals has different signal characteristics, and the signal characteristics include time At least one of a domain transmission location, a frequency domain transmission location, and a code domain characteristic; the transmitting device transmitting at least one of the access signals.
  • the access signal includes a first component and at least one second component, and different first components of the access signal are the same, and different access signals are at least One of the second components is different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule. set.
  • the preset rule is used to determine a mapping relationship between the first identifier and the signal identifier of the second identifier and the access signal.
  • the sending device sends the first indication information semi-statically or dynamically, the first indication information indicates a value range of the first identifier, and/or the sending device is semi-static or dynamically sent.
  • the second indication information indicates the value range of the second identifier.
  • the number of the access signals is greater than one, different access signals correspond to the same first identifier, and at least one second identifier corresponding to the access signal has at least one A second identifier corresponding to the other of the access signals is different.
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal is any one of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • the method further includes:
  • the sending device receives the feedback signal returned by the receiving device, where the feedback signal carries the indication information of the access signal selected by the receiving device from all the received access signals.
  • the indication information of the access signal carried in the feedback signal is: indication information of an optimal access signal selected by the receiving device from all received access signals.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device.
  • the method further includes: determining, by the sending device, the indication indicated by the indication information of the access signal carried in the feedback signal The signal characteristic of the incoming signal transmits a signal carrying the data information according to the determined signal characteristic.
  • an embodiment of the present invention provides a method for receiving an access signal, including: receiving, by a receiving device, at least one access signal, where a signal characteristic of the access signal includes a time domain transmission location, a frequency domain transmission location, and At least one of code domain characteristics, each of the access signals having a different signal characteristic; the receiving device processing the at least one Access signals.
  • the access signal includes a first component and at least one second component, and different first components of the access signal are the same, and different access signals are at least One of the second components is different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the signal identifier of the second identifier and the access signal.
  • the receiving device receives the first indication information, where the first indication information indicates a value range of the first identifier, the first indication information is semi-static or dynamic information; and/or, the receiving device Receiving the second indication information, where the second indication information indicates a value range of the second identifier, and the second indication information is semi-static or dynamic information.
  • the number of the access signals is greater than one, different access signals correspond to the same first identifier, and at least one second identifier corresponding to the access signal has at least one A second identifier corresponding to the other of the access signals is different.
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal is any one of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • the receiving device processes the at least one access signal, including: the receiving device selects an access signal from all received access signals, and returns a feedback signal to the sending device, where The feedback signal carries indication information of the selected access signal.
  • the selected access signal is an optimal access signal.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device.
  • the method further includes The receiving device receives the signal carrying the data information sent by the sending device, where the signal carrying the data information is indicated by the sending device determining the indication information of the access signal carried in the feedback signal After the signal characteristics of the signal are accessed, they are transmitted according to the determined signal characteristics.
  • an embodiment of the present invention provides a sending device, including:
  • a processing module configured to generate at least one access signal, where each of the access signals has different signal characteristics, and the signal characteristics include at least one of a time domain transmission location, a frequency domain transmission location, and a code domain characteristic
  • a sending module configured to send at least one of the access signals.
  • the access signal includes a first component and at least one second component, and different first components of the access signal are the same, and different access signals are at least One of the second components is different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the second identifier and a signal characteristic of the access signal.
  • the sending module is further configured to: send the first indication information semi-statically or dynamically, the first indication information indicates a value range of the first identifier; and/or, semi-static or dynamic sending The second indication information indicates the value range of the second identifier.
  • the number of the access signals is greater than one, different access signals correspond to the same first identifier, and at least one second identifier corresponding to the access signal has at least one A second identifier corresponding to the other of the access signals is different.
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal is any one of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • the method further includes: receiving, by the receiving module, a feedback signal returned by the receiving device, where the feedback signal carries the access signal selected by the receiving device from all received access signals Instructions.
  • the indication information of the access signal carried in the feedback signal is: indication information of an optimal access signal selected by the receiving device from all received access signals.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device.
  • the processing module is further configured to: determine a signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal; the sending module is further configured to: The signal characteristic determined by the processing module transmits a signal carrying the data information.
  • an embodiment of the present invention provides a receiving device, including: a receiving module, configured to receive at least one access signal, where a signal characteristic of the access signal includes a time domain transmission location, a frequency domain transmission location, and At least one of code domain characteristics, each of the access signals having different signal characteristics; and a processing module for processing the at least one access signal.
  • the access signal includes a first component and at least one second component, and different first components of the access signal are the same, and different access signals are at least One of the second components is different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the second identifier and a signal characteristic of the access signal.
  • the receiving module is further configured to: receive the first indication information, where the first indication information indicates a value range of the first identifier, and the first indication information is semi-static or dynamic information; And/or, receiving the second indication information, where the second indication information indicates a value range of the second identifier, and the second indication information is semi-static or dynamic information.
  • the number of the access signals is greater than one, different access signals correspond to the same first identifier, and at least one second identifier corresponding to the access signal has at least one A second identifier corresponding to the other of the access signals is different.
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal is any one of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • the processing module is specifically configured to: select one access signal from all received access signals; and further include a sending module, configured to: return a feedback signal to the sending device, where the feedback signal The indication information of the access signal selected by the processing module is carried.
  • the selected access signal is an optimal access signal.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device.
  • the receiving module is further configured to: after the sending module returns a feedback signal to the sending device, receive a signal carrying the data information sent by the sending device, where the data carrying the data information The signal is sent by the transmitting device according to the determined signal characteristic after determining the signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal.
  • an embodiment of the present invention provides a sending device, where the sending device includes a processor, a memory, and a transceiver, where the transceiver is configured to receive and send data under the control of the processor, and the preset is stored in the memory.
  • Program the processor reads the program in the memory, according to the program performs the following process:
  • each of the access signals has a different signal characteristic, the signal characteristic including at least one of a time domain transmission location, a frequency domain transmission location, and a code domain characteristic; indicating the transceiver to transmit At least one of the access signals.
  • the access signal includes a first component and at least one second component, and different first components of the access signal are the same, and different access signals are at least One of the second components is different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the second identifier and a signal characteristic of the access signal.
  • the transceiver sends the first indication information semi-statically or dynamically, the first indication information indicates a value range of the first identifier, and/or, the second indication information is sent semi-statically or dynamically.
  • the second indication information indicates a value range of the second identifier.
  • the number of the access signals is greater than one, different access signals correspond to the same first identifier, and at least one second identifier corresponding to the access signal has at least one A second identifier corresponding to the other of the access signals is different.
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal is any one of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • the transceiver is further configured to: receive a feedback signal returned by the receiving device, where the feedback signal carries indication information of the access signal selected by the receiving device from all received access signals. .
  • the indication information of the access signal carried in the feedback signal is: indication information of an optimal access signal selected by the receiving device from all received access signals.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device.
  • the processor is further configured to: determine a signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal; and send, by the transceiver, the carried data according to the determined signal characteristic. Signal of information.
  • an embodiment of the present invention provides a receiving device, where the receiving device includes a processor, a memory, and a transceiver, wherein the transceiver receives and transmits data under the control of the processor, and the preset program is stored in the memory.
  • the processor reads a program in the memory, and according to the program, the process of receiving at least one access signal by the transceiver, wherein the signal characteristics of the access signal include a time domain transmission location, a frequency domain transmission location, and a code domain At least one of the characteristics, each of the access signals having a different signal characteristic; processing the at least one access signal.
  • the access signal includes a first component and at least one second component, and different first components of the access signal are the same, and different access signals are at least One of the second components is different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the second identifier and a signal characteristic of the access signal.
  • the transceiver is further configured to receive the first indication information, where the first indication information indicates a value range of the first identifier, where the first indication information is semi-static or dynamic information; and/or Receiving a second indication information, where the second indication information indicates a value range of the second identifier, where the second indication information is a semi-static or dynamic letter interest.
  • the number of the access signals is greater than one, different access signals correspond to the same first identifier, and at least one second identifier corresponding to the access signal has at least one A second identifier corresponding to the other of the access signals is different.
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal is any one of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • the processor selects an access signal from all the received access signals, and returns a feedback signal to the transmitting device by using the transceiver, where the feedback signal carries the indication information of the selected access signal.
  • the selected access signal is an optimal access signal.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device.
  • the processor after the processor returns a feedback signal to the sending device by using the transceiver, the processor receives the signal carrying the data information sent by the sending device by using the transceiver, where the signal carrying the data information is the The transmitting device determines a signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal, and then sends the signal characteristic according to the determined signal characteristic.
  • a seventh aspect a computer storage medium storing computer executable instructions for causing the computer to perform the method of any of the first aspect method.
  • a computer storage medium in an eighth aspect, storing computer executable instructions for causing the computer to perform the method of any of the second aspect method.
  • the sending device sends at least one access signal, and each access signal has different signal characteristics, where the signal characteristics include a time domain transmission location, a frequency domain transmission location, and a code domain characteristic. At least one of the following makes it possible to distinguish different access signals according to the signal characteristics of the access signal, thereby providing a solution for realizing UE access in a future communication system.
  • FIG. 1 is a schematic diagram of an access signal sending process according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of an access signal receiving process in an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a frequency domain transmission position of different SYNCs according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a time domain transmission position of different SYNCs according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of transmission of an access signal including two components in an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a sending device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a receiving device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of another sending device according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of another receiving device according to an embodiment of the present invention.
  • one cell may have one or more TRPs, each TRP covers a smaller range, and multiple TRPs jointly provide coverage of the entire cell.
  • the UE can perform initial synchronization and system access from one of the TRPs.
  • communication systems may use massive MIMO to generate beams through antenna shaping.
  • a TRP generates many beams, each beam pointing in a different direction.
  • the UE can perform initial synchronization and system access through one of the beams.
  • multiple identifiers are required, and each identifier is assigned to a different TRP or beam. The UE distinguishes the TRP or the beam by different identifiers.
  • an embodiment of the present invention provides an access signal transmission method, which distinguishes different TRPs or beams by using signal characteristics of an access signal (AS). Corresponding access signal. For example, the signal characteristics of the access signals corresponding to different TRPs are different, or the signal characteristics of the access signals corresponding to different beams are different.
  • the access signal in the embodiment of the present invention is a broad name and is used to refer to the sum of signals required for the terminal to access the network, and may include one signal or multiple signals.
  • the access signal can be used to implement one or more functions, such as implementing cell synchronization, time domain or frequency domain synchronization, cell system information reception, and the like. It should be noted that, the functions that can be implemented by the access signal in the embodiment of the present invention are not limited to a certain function listed herein, and are accessed in the embodiment of the present invention. The signal is not limited to a specific signal.
  • the sending of the access signal may be in the uplink transmission process or in the downlink transmission process, where the uplink transmission process is sent from the network device to the terminal, and the downlink transmission process is sent from the terminal to the network device.
  • the sending process of the access signal is as follows:
  • Step 101 The transmitting device generates at least one access signal, where each access signal has different signal characteristics, and the signal characteristics include at least one of a time domain transmission location, a frequency domain transmission location, and a code domain characteristic.
  • the code domain characteristic includes at least one of a base sequence, a scrambling sequence, and a spreading sequence.
  • the access signal includes a first component and at least one second component, the first components of different access signals are the same, and the different access signals have at least one second component that is different. . That is, at least one of the second components of any one of the access signals is different from the second component of the other access signals.
  • the first component of the first access signal is the same as the first component of the second access signal, and the first access signal and the second access signal each comprise a plurality of second components, and the first access The signal has a second component that is different from the second component of the second access signal.
  • the at least one second component of the different access signals is different, indicating that the frequency domain transmission location, the time domain transmission location, or the code domain characteristic of different access signals are different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the second identifier and a signal characteristic of the access signal.
  • different access signals may correspond to the same preset rule, or may correspond to different preset rules.
  • the sending device sends the first indication information to the receiving device in a semi-static or dynamic manner, where the first indication information indicates a value range of the first identifier; and/or, the sending device sends the second indication information to the receiving device semi-statically or dynamically.
  • the second indication information indicates a value range of the second identifier.
  • the different access signals correspond to the same first identifier, and at least one of the at least one second identifier corresponding to each of the at least two access signals is different. That is, at least one of the second identifiers corresponding to at least one access signal is different from the second identifier corresponding to the other access signals. In a specific implementation, at least one of the second identifiers corresponding to any one of the access signals is different from the second identifier corresponding to the other access signals. Specifically, at least one of the second identifiers corresponding to the first access signal is different from the second identifier corresponding to the second access signal.
  • each access signal corresponds to one first identifier and two second identifiers
  • the first identifiers corresponding to the two access signals are the same, and at least one of the two second identifiers corresponding to the two accesses is not
  • the second identifier 1 of the access signal 1 is different from the second identifier of the access signal 2.
  • the access signal includes but is not limited to any of the following:
  • Downward system access signal (Initial Access Signal, also known as initial access signal);
  • TRP-specific signal TRP-specific Signal
  • SIB System Information Block
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • Step 102 The sending device sends at least one access signal.
  • the sending device sends the at least one of the access signals
  • the feedback signal returned by the receiving device is received, where the feedback signal carries the access signal selected by the receiving device from all the received access signals.
  • the indication information of the access signal may be an index of the access signal.
  • the indication information of the access signal carried in the feedback signal is: indication information of the optimal access signal selected by the receiving device from all the received access signals.
  • the sending device separately sends an access signal corresponding to each TRP, and determines an optimal TRP according to the feedback signal returned by the receiving device; or, the sending device separately sends an access signal corresponding to each beam, and according to the receiving device The returned feedback signal determines the optimal beam.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device, for example, the transmitting device receives or implicitly receives the notification by a specific signal.
  • the number of bits of the device feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device, for example, the transmitting device receives or implicitly receives the notification by a specific signal.
  • the sending device determines the signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal, and sends and carries according to the determined signal characteristic.
  • the signal of the data message After the sending device receives the feedback signal returned by the receiving device, the sending device determines the signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal, and sends and carries according to the determined signal characteristic.
  • the signal of the data message After the sending device receives the feedback signal returned by the receiving device, the sending device determines the signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal, and sends and carries according to the determined signal characteristic. The signal of the data message.
  • the transmitting device determines the signal characteristic of the access signal indicated by the indication information of the access signal according to the feedback signal, the TRP corresponding to the signal characteristic is determined, and the signal carrying the data information is sent through the TRP; or the transmitting device according to the feedback signal Determining the signal characteristics of the access signal indicated by the indication information of the access signal, determining the signal characteristics
  • the corresponding beam transmits a signal carrying the data information through the beam.
  • the receiving device has no a priori information or a priori information on the number and signal characteristics of the access signals transmitted by the transmitting device.
  • the receiving process of the access signal is as follows:
  • Step 201 The receiving device receives at least one access signal, where the signal characteristics of the access signal include at least one of a time domain transmission location, a frequency domain transmission location, and a code domain characteristic, and each access signal has different signal characteristics. .
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal includes a first component and at least one second component, the first components of different access signals are the same, and the different access signals have at least one second component that is different. .
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the second identifier and a signal characteristic of the access signal.
  • the receiving device receives the first indication information sent by the sending device, where the first indication information indicates a value range of the first identifier, the first indication information is semi-static or dynamic information; and/or, the receiving device receives the sending by the sending device.
  • the second indication information indicates a value range of the second identifier, and the second indication information is semi-static or dynamic information.
  • the different access signals correspond to the same first identifier, and at least one of the at least one second identifier corresponding to each of the at least two access signals is different. That is, at least one of the second identifiers corresponding to at least one access signal is different from the second identifier corresponding to the other access signals. In a specific implementation, at least one of the second identifiers corresponding to any one of the access signals is different from the second identifier corresponding to the other access signals.
  • the access signal includes but is not limited to any of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • Step 202 The receiving device processes at least one access signal.
  • the receiving device selects one access signal from all the received access signals, and returns to the sending device.
  • a feedback signal wherein the feedback signal carries indication information of the selected access signal.
  • the selected access signal is an optimal access signal.
  • the access signal is not the optimal access signal, and the condition of the optimal access signal may be set according to the specific application scenario.
  • the optimal access may be determined according to the signal strength. Signals, etc.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the transmitting device to the receiving device.
  • the receiving device after the receiving device returns a feedback signal to the sending device, the receiving device receives the signal carrying the data information sent by the sending device, where the signal carrying the data information determines, by the sending device, the access signal carried in the feedback signal. After the signal characteristics of the access signal indicated by the indication information, the signal characteristics are transmitted according to the determined signal characteristics.
  • FIG. 3 shows a schematic diagram of a communication system architecture, with a wireless network coverage providing wide area coverage.
  • a wireless network covers multiple cells, each covering a different area.
  • a cell is defined as a wireless network object, which can be used to access the network, and each cell corresponds to a unique cell identifier, and is broadcasted in the coverage area of the cell.
  • a cell may include at least one TRP, and each TRP includes N antennas, where N is greater than or equal to one.
  • the antenna on the TRP can be beamformed, and the downstream signal is transmitted on the antenna after beamforming.
  • Each beam provides wide coverage or narrow coverage depending on the antenna data and beamforming.
  • the cell sends one or more access signals, which are downlink synchronization signals (SYNC), and different SYNCs are sent by different TRPs.
  • SYNC downlink synchronization signals
  • one SYNC corresponds to one PID and one SID, wherein different SYNCs correspond to the same PID, and different SYNCs correspond to different SIDs, and the SID is equivalent to the identifier of the TRP.
  • different SYNCs have at least one signal characteristic different, and the UE can distinguish different SYNCs according to the signal characteristics of the SYNC.
  • the frequency domain transmits the position, and different SYNCs are transmitted in different frequency domain positions, as shown in FIG. 4, which are schematic diagrams of frequency domain transmission positions of different SYNCs.
  • FIG. 4 are schematic diagrams of frequency domain transmission positions of different SYNCs.
  • the UE may obtain the information of the PID of the SYNC through the frequency domain transmission location of the SYNC, or obtain the information of the frequency domain transmission location of the SYNC by using the PID information of the SYNC.
  • the time domain transmission location, different SYNCs are transmitted in different locations in the time domain, as shown in FIG. 5 is a schematic diagram of the time domain transmission locations of different SYNCs.
  • the information of the PID of the SYNC can be obtained by the time domain transmission location of the SYNC, or the information of the time domain transmission location of the SYNC can be obtained by the PID information of the SYNC.
  • the UE can obtain the PID information of the SYNC through the sequence information of the SYNC, or obtain the sequence of the SYNC through the PID information of the SYNC. information.
  • the basic sequences of different SYNCs are different; or, the different SYNC scrambling sequences are different; or different SYNC spreading sequences are different.
  • the access signal includes a plurality of components, and at least one of the different access signals has the same composition, and the different access signals have at least one other component that is different. As shown in FIG. 6, each access signal has two components, namely component 1 and component 2, the components 1 of different access signals are the same, and the components 2 of different access signals are different. . Components 2 of different access signals are transmitted at different frequency domain locations.
  • a third embodiment of the present invention provides a sending device.
  • the sending device For details of the specific implementation of the sending device, refer to the description of the method embodiment, and the repeated description is omitted. As shown in FIG. mainly includes:
  • the processing module 701 is configured to generate at least one access signal, where each of the access signals has different signal characteristics, where the signal characteristics include at least one of a time domain transmission location, a frequency domain transmission location, and a code domain characteristic.
  • the sending module 702 is configured to send at least one of the access signals.
  • the access signal includes a first component and at least one second component, and different first components of the access signal are the same, and different access signals are at least One of the second components is different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the second identifier and a signal characteristic of the access signal.
  • the sending module is further configured to: send the first indication information semi-statically or dynamically, the first indication information indicates a value range of the first identifier; and/or, semi-static or dynamic sending The second indication information indicates the value range of the second identifier.
  • the different access signals correspond to the same first identifier, and at least two of the access signals respectively correspond to at least one second identifier.
  • At least one second logo is different. That is, at least one of the second identifiers corresponding to at least one access signal is different from the second identifier corresponding to the other access signals. In a specific implementation, at least one of the second identifiers corresponding to any one of the access signals is different from the second identifier corresponding to the other access signals.
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal is any one of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • the method further includes: a receiving module 703, configured to: receive a feedback signal returned by the receiving device, where the feedback signal carries an access signal selected by the receiving device from all received access signals Instructions.
  • the indication information of the access signal carried in the feedback signal is: indication information of an optimal access signal selected by the receiving device from all received access signals.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device.
  • the processing module is further configured to: determine a signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal; the sending module is further configured to: The signal characteristic determined by the processing module transmits a signal carrying the data information.
  • a receiving device is provided in the fourth embodiment of the present invention.
  • the receiving device is shown in FIG. mainly includes:
  • the receiving module 801 is configured to receive at least one access signal, where the signal characteristics of the access signal include at least one of a time domain transmission location, a frequency domain transmission location, and a code domain characteristic, each of the access signals Have different signal characteristics;
  • the processing module 802 is configured to process the at least one access signal.
  • the access signal includes a first component and at least one second component, and different first components of the access signal are the same, and different access signals are at least One of the second components is different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the second identifier and a signal characteristic of the access signal.
  • the receiving module is further configured to:
  • the first indication information is semi-static or dynamic information; and/or,
  • the second indication information is semi-static or dynamic information.
  • the different access signals correspond to the same first identifier, and at least one of the at least one second identifier corresponding to the at least two access signals is different. That is, at least one of the second identifiers corresponding to at least one access signal is different from the second identifier corresponding to the other access signals. In a specific implementation, at least one of the second identifiers corresponding to any one of the access signals is different from the second identifier corresponding to the other access signals.
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal is any one of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • the processing module is specifically configured to:
  • the sending module 803 is further configured to: return a feedback signal to the sending device, where the feedback signal carries the indication information of the access signal selected by the processing module.
  • the selected access signal is an optimal access signal.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device.
  • the receiving module is further configured to:
  • the sending module After the sending module returns a feedback signal to the sending device, receiving a signal carrying data information sent by the sending device, where the signal carrying the data information is determined by the sending device to be carried in the feedback signal After the signal characteristics of the access signal indicated by the indication information of the access signal are transmitted, the signal characteristics are transmitted according to the determined signal characteristics.
  • a fifth embodiment of the present invention provides a transmitting device, and the specific implementation of the transmitting device For the description of the method embodiment, the description of the method is not repeated.
  • the transmitting device mainly includes a processor 901, a memory 902, and a transceiver 903.
  • the transceiver 903 is used in the processor 901.
  • Receiving and transmitting data under the control, a preset program is stored in the memory 902, and the processor 901 reads the program in the memory 902, and executes the following process according to the program:
  • each of the access signals has different signal characteristics, the signal characteristics including at least one of a time domain transmission location, a frequency domain transmission location, and a code domain characteristic;
  • the transceiver 903 is instructed to transmit at least one of the access signals.
  • the access signal includes a first component and at least one second component, and different first components of the access signal are the same, and different access signals are at least One of the second components is different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the second identifier and a signal characteristic of the access signal.
  • the transceiver 903 sends the first indication information semi-statically or dynamically, the first indication information indicating a value range of the first identifier, and/or semi-static or dynamic sending of the second indication information,
  • the second indication information indicates a value range of the second identifier.
  • the different access signals correspond to the same first identifier, and at least one of the at least one second identifier corresponding to the at least two access signals is different. That is, at least one of the second identifiers corresponding to at least one access signal is different from the second identifier corresponding to the other access signals. In a specific implementation, at least one of the second identifiers corresponding to any one of the access signals is different from the second identifier corresponding to the other access signals.
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal is any one of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • the transceiver 903 is further configured to: receive a feedback signal returned by the receiving device, where The feedback signal carries indication information of the access signal selected by the receiving device from all received access signals.
  • the indication information of the access signal carried in the feedback signal is: indication information of an optimal access signal selected by the receiving device from all received access signals.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device.
  • the processor 901 is further configured to: determine a signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal; and the transceiver 903 sends the signal characteristic according to the determined signal characteristic.
  • a signal carrying data information is further configured to: determine a signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal; and the transceiver 903 sends the signal characteristic according to the determined signal characteristic.
  • a receiving device is provided in the sixth embodiment of the present invention.
  • the receiving device is shown in FIG. It mainly includes a processor 1001, a memory 1002, and a transceiver 1003.
  • the transceiver 1003 receives and transmits data under the control of the processor 1001.
  • the memory 1002 stores a preset program, and the processor 1001 reads the program in the memory 1002.
  • the transceiver 1003 Receiving, by the transceiver 1003, at least one access signal, wherein the signal characteristics of the access signal comprise at least one of a time domain transmission location, a frequency domain transmission location, and a code domain characteristic, each of the access signals having different Signal characteristics;
  • the access signal includes a first component and at least one second component, and different first components of the access signal are the same, and different access signals are at least One of the second components is different.
  • the access signal is determined by the first identifier and the at least one second identifier according to a preset rule.
  • the preset rule is used to determine a mapping relationship between the first identifier and the second identifier and a signal characteristic of the access signal.
  • the transceiver 1003 is further configured to receive the first indication information, where the first indication information indicates a value range of the first identifier, where the first indication information is semi-static or dynamic information; and Or, receiving the second indication information, where the second indication information indicates a value range of the second identifier, where the second indication information is semi-static or dynamic information.
  • the different access signals correspond to the same first identifier, and at least one of the at least one second identifier corresponding to each of the at least two access signals is different. That is, at least one of the second identifiers corresponding to at least one access signal is different from the second identifier corresponding to the other access signals. In a specific implementation, at least one of the second identifiers corresponding to any one of the access signals does not correspond to the second identifier of the other access signals. with.
  • the code domain characteristic includes at least one of a basic sequence, a scrambling code sequence, and a spreading sequence.
  • the access signal is any one of the following:
  • a signal with transform characteristics in the time domain or frequency domain is A signal with transform characteristics in the time domain or frequency domain.
  • the processor 1001 selects an access signal from all the received access signals, and returns a feedback signal to the transmitting device by the transceiver 1003, where the feedback signal carries an indication of the selected access signal. information.
  • the selected access signal is an optimal access signal.
  • the number of bits of the feedback signal is pre-configured; or the number of bits of the feedback signal is notified by the sending device to the receiving device.
  • the transceiver 1001 receives, by the transceiver 1003, a signal carrying the data information sent by the sending device, where the signal carrying the data information And determining, by the sending device, a signal characteristic of the access signal indicated by the indication information of the access signal carried in the feedback signal, and transmitting according to the determined signal characteristic.
  • the processor, the memory and the transceiver are connected by a bus, and the bus architecture may include any number of interconnected buses and bridges, specifically represented by one or more processors and memories represented by the processor.
  • the various circuits of the memory are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • a computer storage medium is stored in an embodiment of the present invention, where the computer readable storage medium stores computer executable instructions for causing the computer to execute execution by the sending device. Any of the methods.
  • a computer storage medium stores computer executable instructions for causing the computer to perform any of the methods performed by the receiving device described above.
  • the sending device sends at least one access signal, and each access signal has different signal characteristics, where the signal characteristics include a time domain transmission location, a frequency domain transmission location, and a code domain characteristic.
  • the signal characteristics include a time domain transmission location, a frequency domain transmission location, and a code domain characteristic.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can 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.) including computer usable program code.
  • 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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  • Engineering & Computer Science (AREA)
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  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé d'émission et de réception de signal d'accès et un équipement associé, utilisés pour fournir une solution en vue de réaliser un processus d'accès d'un équipement d'utilisateur (UE) dans un futur système de communication. Le procédé comprend les étapes suivantes : un dispositif d'émission génère au moins un signal d'accès, chacun des signaux d'accès ayant une caractéristique de signal différente, et la caractéristique de signal comprenant au moins l'un des éléments suivants : position d'émission de domaine temporel, position d'émission de domaine de fréquence et caractéristique de domaine de code ; et le dispositif d'émission émet au moins l'un des signaux d'accès.
PCT/CN2017/087808 2016-07-15 2017-06-09 Procédé d'émission et de réception de signal d'accès et équipement associé WO2018010509A1 (fr)

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