WO2017129100A1 - 一种识别同步信息的方法和装置 - Google Patents

一种识别同步信息的方法和装置 Download PDF

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Publication number
WO2017129100A1
WO2017129100A1 PCT/CN2017/072260 CN2017072260W WO2017129100A1 WO 2017129100 A1 WO2017129100 A1 WO 2017129100A1 CN 2017072260 W CN2017072260 W CN 2017072260W WO 2017129100 A1 WO2017129100 A1 WO 2017129100A1
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WO
WIPO (PCT)
Prior art keywords
period
synchronization
synchronization information
information
network device
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PCT/CN2017/072260
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English (en)
French (fr)
Inventor
王婷
李元杰
张健
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112018015209-9A priority Critical patent/BR112018015209A2/zh
Priority to EP17743715.9A priority patent/EP3399811B1/en
Priority to JP2018557186A priority patent/JP6656417B2/ja
Publication of WO2017129100A1 publication Critical patent/WO2017129100A1/zh
Priority to US16/045,174 priority patent/US11006379B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • H04W56/0025Synchronization between nodes synchronizing potentially movable access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements

Definitions

  • the present application relates to the field of wireless communications, and in particular, to a method and apparatus for identifying synchronization information.
  • a synchronization period includes an outer loop period (which may be referred to as a discovery message period) and an inner loop period (which may be referred to as a common message period).
  • the base station is generally in phase during an outer loop period of a synchronization period.
  • different synchronization information is transmitted to different directions (one beam for each direction).
  • the wireless network device may access the base station based on the synchronization information, and send a corresponding feedback message to the base station to notify the base station to send the subsequent message in the direction in the inner ring period.
  • the base station In order to reduce the delay of the wireless network device accessing the base station, the base station also sends the synchronization information when the subsequent message is sent in the inner ring period, and the wireless network device cannot distinguish the synchronization information from the base station after receiving the synchronization information sent by the base station in the inner ring period. During the time period, the base station sends a feedback message that does not need to be sent, which wastes the communication resources of the wireless network device.
  • the embodiment of the present application provides a method and apparatus for identifying synchronization information.
  • the technical solution is as follows:
  • a method of identifying synchronization information comprising:
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information in the synchronization configuration information corresponding to the synchronization information;
  • the synchronization information may be information used by the first wireless network device to perform time-frequency synchronization with the second wireless network device, and the time domain location information may be a frame number of a radio frame to which the synchronization information belongs.
  • the synchronization configuration information may be information for configuring wireless communication resources corresponding to the synchronization information, such as PBCH broadcast information.
  • the relative position of the time domain can be the outer loop period and the inner loop period
  • the specific time period corresponding to the synchronization period may be specifically represented by the frame number of the corresponding radio frame.
  • the second wireless network device may send the synchronization information in a beam manner to each cell or beam served by the second wireless network device in an outer ring period of each synchronization period according to a preset synchronization period, and then the first wireless network device may acquire The synchronization configuration information corresponding to the synchronization information, and the time domain location information of the synchronization information is obtained from the synchronization configuration information.
  • the first radio network device may determine the frame of the radio frame to which the synchronization information belongs according to the frame number of the radio frame corresponding to the outer ring period and the inner ring period in the synchronization period.
  • the frame number of the radio frame of the outer ring period is also the frame number of the radio frame of the inner ring period, so that it can be determined that the synchronization information belongs to the outer loop period or the inner loop period. If the first wireless network device determines that the received synchronization information belongs to the outer ring time period, the first wireless network device may send feedback information to the second wireless network device in the uplink resource configured in the current synchronization period, and the feedback information is synchronized with the foregoing. The information is corresponding to enable the second wireless network device to know that there is a need to send subsequent information in the beam direction to which the synchronization information belongs.
  • the time domain location information of the synchronization information is a frame number of a radio frame to which the synchronization information belongs.
  • the outer loop period includes a dedicated discovery subframe, where the dedicated discovery subframe is used Synchronization information for different cells and/or beams is transmitted.
  • the outer ring period uses the dedicated discovery subframe to send the synchronization information to ensure that the second wireless network device sends all the synchronization information in the first few subframes of the synchronization period, so that the first wireless network device can receive the corresponding synchronization information as soon as possible. .
  • the obtaining, in the synchronization configuration information corresponding to the synchronization information, acquiring The time domain location information of the synchronization information including:
  • the time domain location information of the synchronization information is acquired in the PBCH broadcast information corresponding to the synchronization information.
  • the time domain location information of the synchronization information can be obtained from the configuration information related to the synchronization information.
  • the method further includes:
  • the first wireless network device determines, according to the synchronization period duration and the total number of beams, a time domain relative position of the outer loop period and a synchronization period and/or a time domain relative position of the inner loop period and the synchronization period.
  • the radio frame belongs to the outer loop period, otherwise it belongs to the inner loop period.
  • the position of the inner and outer loop periods in the synchronization period can be determined directly according to the synchronization period duration and the total number of beams.
  • the first wireless network device determines, according to the synchronization period duration and the total number of beams, an outer loop period and a synchronization period.
  • the time domain relative position and/or the inner ring time period relative to the time domain relative position of the synchronization period including:
  • the first wireless network device determines, according to the indication information of the synchronization period duration and the total number of beams carried in the RRC signaling, the time domain relative position of the outer loop period and the synchronization period, and/or the time domain relative position of the inner loop period compared to the synchronization period; or
  • the first wireless network device determines, according to the indication information of the synchronization period duration and the total number of beams carried in the PBCH broadcast information, the time domain relative position of the outer loop period and the synchronization period, and/or the time domain relative position of the inner loop period and the synchronization period.
  • the indication information of the synchronization period duration and the total number of beams may be separately obtained by different manners.
  • the synchronization period duration and the total number of beams can be obtained in various ways.
  • the first wireless network device is in a period according to an outer ring period and a synchronization period
  • the relative position of the domain and/or the time domain relative position of the inner ring period and the synchronization period, and the time domain location information of the synchronization information, determining that the synchronization information belongs to an outer ring period or an inner ring period including:
  • the radio frame is an outer ring radio frame or an inner ring radio frame;
  • the first radio network device determines that the synchronization information belongs to an outer ring period, and if the radio frame to which the synchronization information belongs is an inner ring radio frame, the first radio network The device then determines that the synchronization information belongs to an inner loop period.
  • whether the synchronization information belongs to the outer ring or the inner ring can be determined according to whether the synchronization information belongs to the outer ring radio frame or the inner ring radio frame.
  • the method further includes:
  • the first wireless network device acquiring a beam identifier in the synchronization information, where the hybrid radio frame is a radio frame including a partial outer loop period and a partial inner loop period;
  • the first wireless network device Determining, by the first wireless network device, that the synchronization information belongs to an outer ring period or according to a preset beam identifier corresponding to an outer ring period in a hybrid radio frame and a beam identifier corresponding to an inner ring period, and a beam identifier in the synchronization information.
  • Inner ring period Determining, by the first wireless network device, that the synchronization information belongs to an outer ring period or according to a preset beam identifier corresponding to an outer ring period in a hybrid radio frame and a beam identifier corresponding to an inner ring period, and a beam identifier in the synchronization information.
  • the radio frame is considered to be a hybrid radio frame.
  • the first radio network device may determine, according to the frame number of the radio frame corresponding to the outer ring radio frame and the inner ring radio frame in the synchronization period, the radio frame to which the synchronization information belongs.
  • the frame number is the frame number of the radio frame of the outer ring period or the frame number of the radio frame of the inner ring period, or the frame number of the hybrid radio frame.
  • the first wireless network device determines that the frame number of the radio frame to which the received synchronization information belongs is the frame number of the hybrid radio frame, it may be determined that the radio frame to which the synchronization information belongs is a hybrid radio frame, and the first wireless network device may obtain The beam identification in the synchronization information.
  • the second wireless network device may preset the beam identifier corresponding to the outer ring period in the hybrid radio frame and the beam identifier corresponding to the inner ring period, that is, set the beam identifier and the inner and outer loop periods in the synchronization information sent in the hybrid radio frame. Correspondence.
  • the subframe corresponding to the synchronization information sent by the inner ring period is fixed. In this way, the first wireless network device can determine, according to the beam identifier in the synchronization information, that the synchronization information belongs to the outer loop period or the inner loop period in the above correspondence.
  • the synchronization information belongs to the outer ring or the inner ring according to the beam identifier of the synchronization information.
  • the method further includes:
  • the first radio network device acquires a subframe number of the subframe to which the synchronization information belongs;
  • the first radio network device may determine, according to the frame number of the radio frame corresponding to the outer ring radio frame and the inner ring radio frame in the synchronization period, the radio frame to which the synchronization information belongs.
  • the frame number is the frame number of the radio frame of the outer ring period or the frame number of the radio frame of the inner ring period, or the frame number of the hybrid radio frame. If the first wireless network device determines that the frame number of the radio frame to which the received synchronization information belongs is the frame number of the hybrid radio frame, it may be determined that the radio frame to which the synchronization information belongs is a hybrid radio frame, and the first wireless network device may obtain The beam identification in the synchronization information.
  • the second wireless network device may preset the subframe number corresponding to the outer ring period in the hybrid radio frame and the subframe number corresponding to the inner loop period, that is, set the subframe number in the synchronization information sent in the hybrid radio frame.
  • the subframe corresponding to the synchronization information sent by the inner ring period is fixed. In this way, the first wireless network device may determine that the synchronization information belongs to an outer ring period or an inner ring period according to the subframe number of the subframe to which the synchronization information belongs and the foregoing correspondence.
  • the acquiring, by using the subframe number of the subframe to which the synchronization information belongs includes:
  • the second wireless network device may transmit PBCH broadcast information information corresponding to the synchronization information in the PBCH broadcast information channel corresponding to each synchronization information.
  • the first wireless network device may obtain the subframe number of the subframe to which the synchronization information belongs from the PBCH broadcast information corresponding to the synchronization information.
  • the second wireless network device may be preset with a correspondence between the inner and outer ring periods in the hybrid radio frame and the beam identifier in the synchronization information, so that after the first wireless network device acquires the beam identifier in the synchronization information, the foregoing
  • the subframe number of the subframe to which the synchronization information belongs is determined in the correspondence relationship.
  • the subframe number of the subframe to which the synchronization information belongs can be obtained in various ways.
  • the first wireless network device receives the second wireless network device After synchronizing the information, the method further includes:
  • the first wireless network device determines a symbol position of the synchronization information, and performs time domain symbol synchronization according to a symbol position of the synchronization information.
  • the first wireless network device may acquire the symbol position of the synchronization information, that is, determine a specific time corresponding to the synchronization information, so that the first wireless network device may To determine the start time of the next synchronization period, subsequent information can be received at the beginning of the corresponding subframe.
  • time domain symbol synchronization can be performed to determine the start time of the next synchronization period, and the subsequent information is received at the beginning of the corresponding subframe.
  • the determining a symbol location of the synchronization information includes:
  • the first wireless network device determines a symbol position of the synchronization information according to a preset beam identifier or a correspondence between a synchronization information index and a symbol position.
  • the first wireless network device may obtain the correspondence between the beam identifier or the synchronization information index and the symbol position set by the second wireless network device in advance, and then obtain the synchronization of the beam identifier or the synchronization information in the synchronization information, and determine the synchronization through the corresponding relationship.
  • the symbolic location of the information may be obtained.
  • the symbol position of the synchronization information can be determined based on the beam identification of the synchronization information or the synchronization information index.
  • the determining a symbol location of the synchronization information includes:
  • the first wireless network device acquires a symbol position of the synchronization information in the PBCH broadcast information corresponding to the synchronization information.
  • the first wireless network device may obtain the symbol position of the synchronization information from the PBCH broadcast information corresponding to the synchronization information.
  • the symbol position of the synchronization information can be obtained from the PBCH broadcast information corresponding to the synchronization information.
  • a method for transmitting synchronization information comprising:
  • the second wireless network device sends synchronization information and synchronization configuration information corresponding to the synchronization information to the first wireless network device, where the synchronization configuration information includes time domain location information of the synchronization information.
  • the synchronization configuration information corresponding to the synchronization information includes RRC signaling and/or PBCH broadcast information.
  • the RRC signaling and/or the PBCH broadcast information includes indication information of a synchronization period duration and a total number of beams.
  • the PBCH broadcast information further includes a subframe number of the subframe to which the synchronization information belongs.
  • the PBCH broadcast information further includes a symbol location of the synchronization information.
  • a method of identifying synchronization information comprising:
  • the first wireless network device determines, according to the coding sequence in the synchronization information, that the synchronization information belongs to an outer ring period or an inner ring period.
  • the existing coding rules can be adjusted so that the same synchronization information is in the outer ring period and the inner ring time period respectively.
  • the code sequence is different.
  • the second wireless network device encodes the synchronization information using the adjusted coding rules.
  • the first wireless network device may acquire a coding sequence in the synchronization information, and if the coding sequence in the synchronization information meets the coding sequence of the synchronization information in the outer ring period, the first wireless network device may determine the coding sequence.
  • the synchronization information belongs to the outer ring period, and thus the feedback information corresponding to the synchronization information may be sent to the second wireless network device.
  • the primary synchronization sequence in the coding sequence is based on a cell corresponding to the synchronization information, and the synchronization information belongs to an outer ring period or an inner ring period determine;
  • Determining, by the first radio network device, that the synchronization information belongs to an outer ring period or an inner ring period according to the coding sequence in the synchronization information including:
  • the first wireless network device determines, according to the primary synchronization sequence in the coding sequence in the synchronization information, that the synchronization information belongs to an outer ring period or an inner ring period.
  • the primary synchronization sequence in the coding sequence may be designed based on the cell corresponding to the synchronization information and the synchronization information belongs to the outer ring period or the inner ring period, and the root index of the primary synchronization sequence is different for the synchronization information belonging to different time periods.
  • the second wireless network device encodes the synchronization information using the adjusted coding rules. In this way, it can be determined whether the synchronization information belongs to the outer loop period or the inner loop period according to the main synchronization sequence of the synchronization information.
  • the secondary synchronization sequence in the coding sequence is based on a cell corresponding to the synchronization information, and the synchronization information belongs to an outer ring period or an inner ring period determine;
  • Determining, by the first radio network device, that the synchronization information belongs to an outer ring period or an inner ring period according to the coding sequence in the synchronization information including:
  • the first wireless network device determines, according to the secondary synchronization sequence in the coding sequence in the synchronization information, that the synchronization information belongs to an outer ring period or an inner ring period.
  • the second wireless network device may design the secondary synchronization sequence in the coding sequence based on the cell corresponding to the synchronization information and the synchronization information belongs to the outer ring period or the inner ring period, and the specific coding rules are different for the synchronization information belonging to different time periods. Further, after the first wireless network device receives the synchronization information, whether the synchronization information belongs to the outer ring period or the inner ring period may be determined according to the secondary synchronization sequence.
  • the synchronization information belongs to the outer loop period or the inner loop period according to the secondary synchronization sequence of the synchronization information.
  • the first wireless network device receives the second wireless network device After synchronizing the information, the method further includes:
  • the first wireless network device determines a symbol position of the synchronization information, and performs time domain symbol synchronization according to a symbol position of the synchronization information.
  • the first wireless network device may acquire the symbol position of the synchronization information, that is, determine a specific time corresponding to the synchronization information, so that the first wireless network device may Determining the start time of the next synchronization period, the subsequent information can be received at the beginning of the corresponding subframe.
  • time domain symbol synchronization can be performed to determine the start time of the next synchronization period, and the subsequent information is received at the beginning of the corresponding subframe.
  • the determining a symbol location of the synchronization information includes:
  • the first wireless network device may obtain the correspondence between the beam identifier or the synchronization information index and the symbol position set by the second wireless network device in advance, and then obtain the synchronization of the beam identifier or the synchronization information in the synchronization information, and determine the synchronization through the corresponding relationship.
  • the symbolic location of the information may be obtained.
  • the symbol position of the synchronization information can be determined based on the beam identification of the synchronization information or the synchronization information index.
  • the determining a symbol location of the synchronization information includes:
  • the first wireless network device acquires a symbol position of the synchronization information in the PBCH broadcast information corresponding to the synchronization information.
  • the first wireless network device may obtain the symbol position of the synchronization information from the PBCH broadcast information corresponding to the synchronization information.
  • the symbol position of the synchronization information can be obtained from the PBCH broadcast information corresponding to the synchronization information.
  • a fourth aspect provides a method for transmitting synchronization information, where the method includes:
  • the second wireless network device sends the synchronization information including the coding sequence to the first wireless network device; the coding sequence is used to distinguish that the synchronization information belongs to an outer ring period or an inner ring period.
  • the second wireless network device may encode the synchronization information based on the adjusted coding rule such that the same synchronization information is different in the coding sequence when the outer loop period and the inner loop period, respectively.
  • the first wireless network device may acquire a coding sequence in the synchronization information, and if the coding sequence in the synchronization information meets the coding sequence of the synchronization information in the outer ring period, the first wireless network device may determine the coding sequence.
  • the synchronization information belongs to the outer ring period, and thus the feedback information corresponding to the synchronization information may be sent to the second wireless network device.
  • a method for identifying synchronization information comprising:
  • the first wireless network device acquires the indication information in the PBCH broadcast information corresponding to the synchronization information, where the indication information is used to indicate that the synchronization information belongs to an outer ring period or an inner ring period;
  • the first wireless network device determines, according to the indication information, that the synchronization information belongs to an outer ring period or an inner ring period.
  • the first wireless network device may obtain the indication information in the corresponding PBCH broadcast information, and then determine the time period to which the synchronization information belongs according to the indication information, and if the synchronization information belongs to the outer ring time period, Then, feedback information corresponding to the synchronization information may be sent to the second wireless network device.
  • the indication information has a value of 0 or 1, wherein the indication information is 0 or 1 respectively, indicating the synchronization.
  • the information belongs to the outer ring period or the inner ring period.
  • the time period to which the synchronization information belongs can be identified by the information with a small amount of data.
  • the method further includes:
  • the first wireless network device determines a symbol position of the synchronization information, and performs time domain symbol synchronization according to a symbol position of the synchronization information.
  • the first wireless network device may acquire the symbol position of the synchronization information, that is, determine a specific time corresponding to the synchronization information, so that the first wireless network device may Determining the start time of the next synchronization period, the subsequent information can be received at the beginning of the corresponding subframe.
  • time domain symbol synchronization can be performed to determine the start time of the next synchronization period, and the subsequent information is received at the beginning of the corresponding subframe.
  • the determining a symbol location of the synchronization information includes:
  • the first wireless network device determines a symbol position of the synchronization information according to a preset beam identifier or a correspondence between a synchronization information index and a symbol position.
  • the first wireless network device may obtain the correspondence between the beam identifier or the synchronization information index and the symbol position set by the second wireless network device in advance, and then obtain the synchronization of the beam identifier or the synchronization information in the synchronization information, and determine the synchronization through the corresponding relationship.
  • the symbolic location of the information may be obtained.
  • the symbol position of the synchronization information can be determined based on the beam identification of the synchronization information or the synchronization information index.
  • the determining a symbol location of the synchronization information includes:
  • the first wireless network device acquires a symbol position of the synchronization information in the PBCH broadcast information corresponding to the synchronization information.
  • the first wireless network device may obtain the symbol position of the synchronization information from the PBCH broadcast information corresponding to the synchronization information.
  • the symbol position of the synchronization information can be obtained from the PBCH broadcast information corresponding to the synchronization information.
  • a sixth aspect provides a method for transmitting synchronization information, where the method includes:
  • the second wireless network device sends the synchronization information to the first wireless network device, and carries the indication information in the PBCH broadcast information corresponding to the synchronization information, where the indication information is used to indicate that the synchronization information belongs to an outer ring period or an inner ring period .
  • the symbol position of the synchronization information is added to the PBCH broadcast information corresponding to the synchronization information.
  • a wireless network device including a receiver, a processor, and a transmitter, where the processor is configured to control a receiver and a transmitter to receive and transmit signals, when the processor performs the foregoing
  • the method of the wireless network device for performing any of the first aspect or all of the possible embodiments of the first aspect, or all possible implementations of the third or third aspect, when the processing of the synchronization information is identified A method of any one of the modes, such as the method of any of the fifth aspect or all of the possible embodiments of the fifth aspect.
  • a wireless network device for transmitting synchronization information
  • the wireless network device includes a processor, a transmitter, and the processor is configured to control a transmitter to send a signal when the processor
  • the method of the wireless network device for performing any of the second aspect or all of the possible embodiments of the second aspect, or all of the possibilities of the fourth aspect or the fourth aspect, when the process of identifying the synchronization information is performed
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information; the first wireless network device determines, according to the time domain location information of the synchronization information, a time domain relative position of the synchronization information in a current synchronization period; the first wireless network device according to a preset time interval relative position of the outer ring period and the synchronization period and/or a time domain relative position of the inner ring period and the synchronization period And determining, in the time domain relative position of the synchronization information in the current synchronization period, that the synchronization information belongs to an outer loop period or an inner loop period.
  • the wireless network device can determine, according to the time domain location information of the received synchronization information, that the synchronization information belongs to the outer ring period or the inner ring period, and then only sends the feedback information of the synchronization information corresponding to the outer ring period, thereby saving the wireless network device. Communication resources.
  • FIG. 1 is a flowchart of a method for identifying synchronization information provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of a synchronization period provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of an outer loop period and an inner loop period provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a time domain relative position of an outer ring period and an inner ring period according to an embodiment of the present application
  • FIG. 5 is a schematic diagram of an outer ring radio frame, an inner ring radio frame, and a hybrid radio frame according to an embodiment of the present application;
  • FIG. 6 is a schematic diagram of a dedicated discovery subframe provided by an embodiment of the present application.
  • FIG. 7 is a flowchart of a method for identifying synchronization information according to an embodiment of the present application.
  • FIG. 8 is a flowchart of a method for identifying synchronization information according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an apparatus for identifying synchronization information according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of an apparatus for identifying synchronization information according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of an apparatus for identifying synchronization information according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of an apparatus for identifying synchronization information according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of an apparatus for identifying synchronization information according to an embodiment of the present disclosure
  • FIG. 14 is a schematic structural diagram of an apparatus for identifying synchronization information according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of an apparatus for identifying synchronization information according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of an apparatus for identifying synchronization information according to an embodiment of the present application.
  • a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread in execution, a program, and/or a computer.
  • an application running on a computing device and the computing device can be a component.
  • One or more components can reside within a process and/or thread of execution, and a component can be located in a computer and/or distributed between two or more computers. Moreover, these components can execute from various computer readable media having various data structures thereon.
  • These components may be passed, for example, by having one or more data packets (eg, data from one component that interacts with the local system, another component of the distributed system, and/or signaled through, such as the Internet) Signals of the network interacting with other systems, in the form of local and / or remote processes Line communication.
  • data packets eg, data from one component that interacts with the local system, another component of the distributed system, and/or signaled through, such as the Internet
  • a wireless network device which may be a base station, which may be used to communicate with one or more user devices, or may be used with one or more functions having partial user devices.
  • the base station performs communication (such as communication between the macro base station and the micro base station, such as an access point);
  • the wireless network device can also be a user equipment, and the user equipment can be used for communication by one or more user equipments (such as D2D communication). It can also be used to communicate with one or more base stations.
  • User equipment may also be referred to as user terminals and may include systems, subscriber units, subscriber stations, mobile stations, mobile wireless terminals, mobile devices, nodes, devices, remote stations, remote terminals, terminals, wireless communication devices, wireless communication devices, or Some or all of the features of the user agent.
  • User equipment can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, smart phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), laptop computers, handheld communication devices, handheld computing Devices, satellite wireless devices, wireless modem cards, and/or other processing devices for communicating over wireless systems.
  • SIP Session Initiation Protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • laptop computers handheld communication devices
  • handheld computing Devices satellite wireless devices
  • wireless modem cards wireless modem cards
  • a base station may also be referred to as an access point, a node, a Node B, an evolved Node B (eNB), or some other network entity, and may include some or all of the functions of the above network entities.
  • the base station can communicate with the wireless terminal over the air interface. This communication can be done by one or more sectors.
  • the base station can act as a router between the wireless terminal and the rest of the access network by converting the received air interface frame to an IP packet, wherein the access network includes an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate the management of air interface attributes and can also be a gateway between the wired network and the wireless network.
  • the wireless network device can include a receiver, a processor, and a transmitter, and the receiver and the transmitter can be respectively coupled to the processor.
  • the receiver can be used to receive signals, and the receiver can include, but is not limited to, an antenna, one or more oscillators, a coupler, a low noise amplifier (LNA), a duplexer, an analog to digital converter, a frequency converter, etc.
  • LNA low noise amplifier
  • the transmitter can be used to transmit signals, and the transmitter can include, but is not limited to, an antenna, one or more oscillators, a coupler, a power amplifier (PA), a duplexer, a digital to analog converter, a frequency converter, etc.
  • PA power amplifier
  • the transmitter and receiver can be collectively referred to as transceivers, and the hardware components they each include can be shared according to actual needs.
  • the processor may be used to receive or send related processing of the message
  • the processor may include one or more processing units;
  • the processor may be a general purpose processor, including a central processing unit (CPU), a network A network processor (NP), etc.; may also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device.
  • the program can include program code, the program code including computer operating instructions.
  • the application will present various aspects, embodiments, or features in a system that can include multiple devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules, etc. discussed in connection with the figures. In addition, a combination of these schemes can also be used.
  • information, signal, message, and channel may sometimes be mixed. It should be noted that the meaning to be expressed is consistent when the difference is not emphasized. “of”, “corresponding (relevant)” and “corresponding” can sometimes be mixed. It should be noted that the meaning to be expressed is consistent when the distinction is not emphasized.
  • the network architecture and the service scenario described in the embodiments of the present application are for the purpose of more clearly explaining the technical solutions of the embodiments of the present application, and do not constitute a limitation of the technical solutions provided by the embodiments of the present application.
  • the evolution of the network architecture and the emergence of a new service scenario, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.
  • the embodiment of the present application can be applied to a time division duplexing (TDD) scenario or a frequency division duplexing (FDD) scenario.
  • TDD time division duplexing
  • FDD frequency division duplexing
  • the embodiments of the present application can be used for both a single carrier system and a multi-carrier system, and can be used for high frequency (above 6 GHz band) or low frequency communication system (below 6 GHz band).
  • the embodiment of the present application is illustrated by the scenario of the 4G network in the wireless communication network. It should be noted that the solution in the embodiment of the present application may also be applied to other wireless communication networks, and the corresponding name may also be used in other wireless communication networks. Replace the name of the corresponding function.
  • the flow of the synchronization information identification method shown in FIG. 1 will be described below with reference to specific embodiments.
  • Step 101 The first wireless network device receives the synchronization information sent by the second wireless network device, and obtains the time domain location information of the synchronization information in the synchronization configuration information corresponding to the synchronization information.
  • Step 102 The first wireless network device determines that the synchronization information belongs to the outer ring according to the time domain relative position of the outer ring period synchronization period and/or the time domain relative position of the inner ring period synchronization period and the time domain location information of the synchronization information. Time period or inner ring time.
  • it may also include:
  • Step 103 If the synchronization information belongs to the outer ring period, the first wireless network device sends feedback information corresponding to the synchronization information to the second wireless network device.
  • the synchronization information may be information used by the first wireless network device to perform time-frequency synchronization with the second wireless network device, and the time domain location information may be a frame number of a radio frame to which the synchronization information belongs.
  • the synchronization configuration information may be information for configuring wireless communication resources corresponding to the synchronization information, such as information in a Physical Broadcast Channel (PBCH).
  • PBCH Physical Broadcast Channel
  • the synchronization period may be preset, and the first part of each synchronization period is set as an outer loop period, and the latter part is an inner loop period, and the outer loop period may be further divided into a plurality of sub-periods, wherein the one sub-period may be a communication time unit such as a radio frame, a sub-frame, or a plurality of symbols, where each sub-period corresponds to a cell or a beam served by the second radio network device, where the same cell may be A plurality of different beams are included (not indicated in the present application in units of beams). As shown in FIG.
  • each square may correspond to one radio frame
  • B0, B1, ..., BN-1 may correspond to different cells or beams, respectively.
  • the second wireless network device may send the synchronization information in a beam manner to each cell or beam served by the second wireless network device in the outer ring period of each synchronization period according to a preset synchronization period, if the first wireless network device is in the The signal of the second wireless network device is within the coverage of the signal, and the antenna of the first wireless network device is continuously in the state of receiving the signal, and the first wireless network device may search for and receive the synchronization information that is broadcasted by the second wireless network device.
  • the first wireless network device can acquire time domain location information of the synchronization information, that is, a frame number of the radio frame to which the synchronization information belongs.
  • the synchronization configuration information may belong to the same time domain location as the synchronization information, such as belonging to the same radio frame or the same subframe, or the synchronization configuration information and the synchronization information belong to the same beam, and one synchronization information may correspond to one synchronization configuration information. It is also possible to have one synchronization information corresponding to one synchronization configuration information.
  • a synchronization period may be referred to as an outer loop period, and an outer loop period is composed of an outer loop period and an inner loop period, and an inner loop period may further include a plurality of inner loop periods, as shown in FIG. 3 .
  • the time domain relative position may be a specific time period corresponding to the outer ring period and the inner ring period in the synchronization period, and may be expressed as a frame number of the corresponding radio frame.
  • the first wireless network device may determine the frame number of the corresponding radio frame according to the outer ring period and the inner ring period in the synchronization period.
  • the frame number of the radio frame to which the synchronization information belongs is the frame number of the radio frame of the outer ring period or the frame number of the radio frame of the inner ring period, so that it can be determined that the synchronization information belongs to the outer loop period or the inner loop period.
  • the radio frame can be determined. It belongs to the outer ring period, and it can be determined that the synchronization information belongs to the outer ring period.
  • the first wireless network device may determine, according to the synchronization period duration and the total number of beams, a time domain relative position of the outer loop period and a synchronization period and/or a time domain relative position of the inner loop period and the synchronization period.
  • the synchronization period duration is T
  • the length of a radio frame is known as T rf and the length of one subframe is T sf
  • the radio frame belongs to the outer ring period, otherwise it belongs to the inner ring period.
  • the total number of beams is 12, the duration of one synchronization period is 40 ms, and the length of each radio frame is 1 ms.
  • one synchronization period includes 40 radio frames, and the first wireless network device can be set in the protocol or notified in advance.
  • the radio frame carries the synchronization information of the four beams, and the time-domain relative position of the outer loop period is smaller than the synchronization period and/or the time-domain relative position of the inner loop period is the synchronization period: the first three radio frames in each synchronization period belong to the outer During the ring period, the last 37 radio frames belong to the inner loop period, as shown in FIG.
  • the first wireless network device may obtain the foregoing synchronization period duration and the total number of beams in multiple manners, and three feasible manners are as follows:
  • the time domain relative position of the outer loop period and the synchronization period and/or the time domain relative position of the inner loop period are compared according to the preset synchronization period duration and the total number of beams.
  • Manner 2 determining, according to the indication information of the synchronization period duration and the total number of beams included in the Radio Resource Control (RRC) signaling, the time domain relative position of the outer loop period and the synchronization period and/or the inner loop period. Time domain relative position.
  • RRC Radio Resource Control
  • Manner 3 determining, according to the indication information of the synchronization period duration and the total number of beams included in the PBCH broadcast information, the time domain relative position of the outer loop period compared with the synchronization period and/or the time domain relative position of the inner loop period compared with the synchronization period.
  • the duration of the synchronization period and the total number of beams can be obtained in different manners.
  • the indication information may be a specific synchronization period duration and a total number of beams, or other information used to determine the synchronization period duration and the total number of beams.
  • the first wireless network device when the number K of the beams corresponding to the synchronization information carried in each radio frame is previously notified to the first wireless network device, the first wireless network device further includes the value of the K.
  • the radio frame of the inner ring period may be referred to as an inner ring radio frame
  • the radio frame of the outer ring period may be referred to as an outer ring radio frame
  • the processing of step 103 may be as follows: the first radio network device is according to the outer ring. Determining the time domain relative position of the synchronization period of the wireless frame and/or the time domain relative position of the synchronization period of the inner ring radio frame, and the time domain location information of the synchronization information, determining that the radio frame to which the synchronization information belongs is an outer ring radio frame or inner ring.
  • the radio frame to which the synchronization information belongs is an outer ring radio frame, it is determined that the synchronization information belongs to an outer ring period, and if the radio frame to which the synchronization information belongs is an inner ring radio frame, the first radio network device determines that the synchronization information belongs to the inner ring. Time period.
  • the period to which the subframe in the radio frame belongs is further determined, and the corresponding processing may be as follows: if the outer ring is wireless The time domain relative position of the frame synchronization period and the time domain relative position of the inner ring radio frame synchronization period, and the time domain location information of the synchronization information, Determining that the radio frame to which the synchronization information belongs is a hybrid radio frame, and the first radio network device acquiring the beam identifier in the synchronization information, where the hybrid radio frame is a radio frame including a part of the outer ring period and a part of the inner ring period; the first wireless network The device determines, according to the preset beam identifier corresponding to the outer ring period in the hybrid radio frame and the beam identifier corresponding to the inner ring period, and the beam identifier in the synchronization information, to determine that the synchronization information belongs to the outer loop period or the inner loop period.
  • the radio frame is considered to be a hybrid radio frame.
  • the synchronization information of the K beams can be carried in each radio frame.
  • the radio frame is determined to be an outer ring radio frame, and the inner ring radio frame is a hybrid radio frame, if n rf is greater than or equal to k ⁇ N.
  • a hybrid radio frame here, " "To round down the symbol, k is a natural number (in this embodiment, the frame number includes 0, and the corresponding k also includes 0.)
  • the total number of beams is 10, and there are 40 radio frames in one synchronization period, setting each The radio frame carries the synchronization information of the four beams, and the time domain relative position of the outer loop period is smaller than the synchronization period and the time domain relative position of the inner loop period is the outer loop radio frame, and the last 37 radio frames are the outer ring radio frames.
  • the radio frame belongs to the inner ring radio frame, and the third radio frame is the hybrid radio frame, as shown in FIG. 5.
  • the first radio network device may first determine whether there is a hybrid radio frame. After obtaining the frame number of the radio frame to which the synchronization information belongs, the first radio network device may determine, according to the frame number of the radio frame corresponding to the outer ring radio frame and the inner ring radio frame in the synchronization period, the radio frame to which the synchronization information belongs.
  • the frame number is the frame number of the radio frame of the outer ring period or the frame number of the radio frame of the inner ring period, or the frame number of the hybrid radio frame.
  • the first radio network device determines the radio frame to which the received synchronization information belongs If the frame number is the frame number of the hybrid radio frame, it can be determined that the radio frame to which the synchronization information belongs is a hybrid radio frame, and the first radio network device can obtain the beam identifier in the synchronization information.
  • the second wireless network device may preset the beam identifier corresponding to the outer ring period in the hybrid radio frame and the beam identifier corresponding to the inner ring period, that is, set the beam identifier and the inner and outer loop periods in the synchronization information sent in the hybrid radio frame.
  • the subframe corresponding to the synchronization information sent by the inner ring period is fixed.
  • the synchronization information with the beam identifiers of 8, 9 corresponds to the outer ring period
  • the synchronization information with the beam identifier of 0, 1 corresponds to the inner loop period.
  • the first wireless network device can determine, according to the beam identifier in the synchronization information, that the synchronization information belongs to the outer loop period or the inner loop period in the above correspondence.
  • the time period to which the synchronization information belongs may be determined according to the subframe number of the subframe to which the synchronization information belongs, and the corresponding processing may be as follows: if the time domain relative position of the outer ring radio frame is synchronized with the inner ring radio frame according to the synchronization period The time domain relative position of the period and the time domain location information of the synchronization information, determining that the radio frame to which the synchronization information belongs is a hybrid radio frame, and the first radio network device acquiring the subframe number of the subframe to which the synchronization information belongs; the first radio network device
  • the synchronization information belongs to the outer loop period or the inner loop period according to the preset subframe number corresponding to the outer loop period and the subframe number corresponding to the inner loop period in the hybrid radio frame, and the subframe number of the subframe to which the synchronization information belongs.
  • the first radio network device may determine the synchronization information according to the frame number of the radio frame corresponding to the outer ring radio frame and the inner ring radio frame in the synchronization period.
  • the frame number of the associated radio frame is the frame number of the radio frame of the outer ring period or the frame number of the radio frame of the inner ring period, or the frame number of the hybrid radio frame. If the first wireless network device determines that the frame number of the radio frame to which the received synchronization information belongs is the frame number of the hybrid radio frame, it may be determined that the radio frame to which the synchronization information belongs is a hybrid radio frame.
  • the second wireless network device may preset the subframe number corresponding to the outer ring period in the hybrid radio frame and the subframe number corresponding to the inner loop period, that is, set the subframe number in the synchronization information sent in the hybrid radio frame.
  • the subframe corresponding to the synchronization information sent in the inner ring period is fixed.
  • the synchronization information with the subframe number of 0 and 1 corresponds to the outer loop period
  • the synchronization information with the subframe number of 2 and 3 corresponds to the inner loop period.
  • the first wireless network device may determine, according to the subframe number of the subframe to which the synchronization information belongs, in the foregoing correspondence that the synchronization information belongs to an outer ring period or an inner ring period.
  • the first wireless network device can obtain the subframe number in multiple manners, and the following two possible manners are given:
  • the subframe number of the subframe to which the synchronization information belongs is obtained in the PBCH broadcast information corresponding to the synchronization information.
  • the second wireless network device may send PBCH broadcast information information corresponding to the synchronization information in a PBCH broadcast information channel corresponding to each synchronization information.
  • the first wireless network device may obtain the subframe number of the subframe to which the synchronization information belongs from the PBCH broadcast information corresponding to the synchronization information.
  • a subframe number identifier may be added to the master information block to indicate the subframe number, for example, subframes 0 to 4 are synchronization information of the outer loop period, and 5 to 9 are inner loops. Synchronization information for the time period.
  • the subframe identifier of the subframe to which the synchronization information belongs is determined according to the preset beam identifier corresponding to the outer ring period in the hybrid radio frame and the beam identifier corresponding to the inner loop period, and the beam identifier in the synchronization information.
  • the second wireless network device may be configured with a correspondence between the inner and outer ring periods in the hybrid radio frame and the beam identifier in the synchronization information, so that after the first wireless network device obtains the beam identifier in the synchronization information, The subframe number of the subframe to which the synchronization information belongs is determined in the above correspondence.
  • the subframe where beam 0 and beam 4 are located is subframe 0
  • the subframe where beam 1 and beam 5 are located is subframe 3
  • the subframe where beam 2 and beam 6 are located is subframe 5
  • the subframe where beam 3 and beam 7 are located is subframe 8
  • the subframe in which outer loop beam 8 is located is subframe 0
  • the subframe in outer loop beam 9 is subframe 3
  • inner loop beam 0 is located.
  • the subframe is the subframe No. 5, and the subframe in which the inner ring beam 1 is located is the subframe No. 8
  • the first wireless network device may send feedback information to the second wireless network device in the uplink resource configured in the current synchronization period, the feedback.
  • the information corresponds to the synchronization information, that is, the feedback information carries the beam identifier of the beam carried in the synchronization information, or the time domain location information of the feedback information corresponds to the time domain location information of the synchronization information, so that the second The wireless network device knows that there is a need to send subsequent information in the beam direction to which the synchronization information belongs.
  • the special discovery subframe is used to send synchronization information in the outer loop period, where the dedicated discovery subframe is used to send multiple synchronization information, and the subframe is referred to as a dedicated discovery subframe.
  • 6 is a schematic diagram of a possible structure of the above-mentioned dedicated discovery subframe, wherein a dedicated discovery subframe can be used to transmit 4 synchronization information, each synchronization information occupies two symbol positions, and further, a dedicated discovery subframe.
  • the information may also include the following information:
  • the physical downlink control channel (PDCCH) occupies 1 to 3 symbol positions, and is used to transmit downlink control information, such as an uplink scheduling command, a downlink data transmission indication, and a common control, to the wireless network device.
  • PDCCH physical downlink control channel
  • the downlink control information includes control information such as resource allocation, transmission format, power control, frequency hopping type, and transmission mode;
  • the guard interval (GP) occupies 1 to 3 symbol positions at a time when the downlink is converted to an uplink. It is used to prevent the downlink signal from interfering with the uplink signal.
  • Hybrid Automatic Repeat ReQuest (HARQ) occupies 1 to 2 symbol positions to ensure that the information receiver saves the received data if the decoding fails. And ask the sender of the message to retransmit the data, the recipient will retransmit the data and the previous Merging the data received after decoding.
  • the specific discovery sub-frame specifically includes several Step information, or whether to include one or more of PDCCH, GP, and HARQ, or the configuration information including the PDCCH, GP, or HARQ occupying several symbol positions may be specifically determined according to system requirements.
  • the configuration information may be preset to the sender and the receiver in advance, or the configuration information may be sent by the sender to the receiver.
  • the specific transmission mode refer to the existing method, and details are not described herein.
  • the first wireless network device may be a terminal
  • the second wireless network device may be a base station.
  • the embodiment of the present application further provides a system for identifying synchronization information.
  • the system provided in this embodiment can implement the process of the embodiment shown in FIG. 1 of the present application.
  • the system may include a first wireless network device and a second wireless network device that implement the process of the embodiment shown in FIG. 1, and no further explanation is provided herein.
  • This embodiment further provides a method for identifying synchronization information.
  • the specific process is shown in FIG. 7.
  • the content of the implementation may be as follows:
  • Step 701 The second wireless network device generates a coding sequence of the synchronization information based on the cell and/or the beam corresponding to the synchronization information to be sent, and the synchronization information belongs to the outer ring period or the inner ring period.
  • the second wireless network device may design different encoding sequences of the synchronization information of the outer ring period and the inner ring period, that is, modify the encoding rules of the synchronization information in the related art, which are respectively the outer ring period and the inner ring period.
  • the coding sequence of the synchronization information sets different coding parameters such that the synchronization information of different periods of the same cell and/or beam has different coding sequences.
  • Step 702 The second wireless network device sends synchronization information including the coding sequence to the first wireless network device.
  • Step 703 The first wireless network device receives the synchronization information sent by the second wireless network device.
  • Step 704 The first wireless network device acquires a coding sequence in the synchronization information.
  • Step 705 The first wireless network device determines, according to the coding sequence in the synchronization information, that the synchronization information belongs to an outer ring period or an inner ring period.
  • the method further includes the step 706, if the synchronization information belongs to the outer ring period, the first wireless network device sends the feedback information corresponding to the synchronization information to the second wireless network device.
  • the synchronization information is composed of primary and secondary synchronization information.
  • a specific sequence of Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS) is transmitted in a given cell to indicate a physical layer cell identity.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • the PSS is a frequency domain ZC (Zadoff-Chu) sequence of length 63, and the three PSS sequences correspond to three physical layer identifiers of each cell identification group.
  • the root index u of the ZC sequence is 25, 29, and 34, respectively. Shown.
  • the specific generated sequence is shown in formula (1):
  • the SSS sequence is composed of two M-sequences of length 31, which are generated by different cyclic shifts of the same M-length 31 sequence.
  • the SSS sequence is obtained by scrambling the PSS and the code associated with the PSS, as shown in equation (2):
  • the same synchronization information is encoded in the outer ring period and the inner ring period respectively.
  • the sequence is different, which is different from the existing coding rules, and is referred to herein as the adjusted coding rule.
  • the second wireless network device encodes the synchronization information using the adjusted coding rules.
  • the first wireless network device may acquire a coding sequence in the synchronization information, and if the coding sequence in the synchronization information meets the coding sequence of the synchronization information in the outer ring period, the first wireless network device may determine the coding sequence.
  • the synchronization information belongs to the outer ring period, and thus the feedback information corresponding to the synchronization information may be sent to the second wireless network device.
  • the primary synchronization sequence in the coding sequence is determined based on the cell corresponding to the synchronization information and the synchronization information belongs to an outer ring period or an inner ring period; the first wireless network device determines according to the primary synchronization sequence in the coding sequence in the synchronization information.
  • the synchronization information belongs to the outer ring period or the inner ring period.
  • the primary synchronization sequence in the coding sequence may be designed based on the cell corresponding to the synchronization information and the synchronization information belongs to the outer ring period or the inner ring period, and the root index of the primary synchronization sequence is different for the synchronization information belonging to different time periods.
  • the root index of the synchronization sequence of the synchronization information is different, the outer loop period is 0, 1, 2, and the inner loop period is 3, 4, 5, as shown in Table 3:
  • auxiliary synchronization information has been modified as follows in the related technology:
  • the corresponding root index may be obtained according to the primary synchronization sequence, and then the synchronization information is determined according to the root index whether it belongs to the outer ring period or the inner ring period.
  • the secondary synchronization sequence in the coding sequence is determined based on the cell corresponding to the synchronization information and the synchronization information belongs to an outer ring period or an inner ring period; the first wireless network device determines, according to the secondary synchronization sequence in the coding sequence in the synchronization information.
  • the synchronization information belongs to the outer ring period or the inner ring period.
  • the secondary synchronization sequence in the coding sequence may be designed based on the cell corresponding to the synchronization information and the synchronization information belongs to the outer ring period or the inner ring period, and the specific coding rules are different for the synchronization information belonging to different time periods.
  • the subframe length is shortened, and it is not necessary to transmit the same synchronization information twice in one radio frame. Therefore, the synchronization channel design of the 0th subframe and the 5th subframe in the related art can be applied to the synchronization information design of the outer loop period and the inner loop period, that is, the following sequence is generated:
  • the first wireless network device may determine whether the synchronization information belongs to an outer ring period or an inner ring period according to the secondary synchronization sequence.
  • the embodiment of the present application further provides a system for identifying synchronization information.
  • the system provided in this embodiment can implement the process of the embodiment shown in FIG. 7 of the present application.
  • the system may include the first wireless network device and the second wireless network device that implement the process of the embodiment shown in FIG. 7, and no further explanation is provided herein.
  • the embodiment further provides a method for identifying synchronization information.
  • the specific process is shown in FIG. 8.
  • the content of the implementation may be as follows:
  • Step 801 The first wireless network device receives the synchronization information sent by the second wireless network device.
  • Step 802 The first wireless network device acquires the indication information in the PBCH broadcast information corresponding to the synchronization information, where the indication information is used to indicate that the synchronization information belongs to an outer loop period or an inner loop period.
  • Step 803 The first wireless network device determines, according to the indication information, that the synchronization information belongs to an outer ring period or an inner ring period.
  • the method further includes the step 804, if the synchronization information belongs to the outer ring period, the first wireless network device sends the feedback information corresponding to the synchronization information to the second wireless network device.
  • the first wireless network device may obtain the indication information in the corresponding PBCH broadcast information, and then determine, according to the indication information, a time period to which the synchronization information belongs, if the synchronization information belongs to During the outer ring period, the feedback information corresponding to the synchronization information may be sent to the second wireless network device.
  • the value of the indication information may be 0 or 1, wherein when the value of the indication information is 0 or 1, the synchronization information is respectively indicated to belong to an outer loop period or an inner loop period.
  • the second wireless network device may add a synchronization information identifier (sch-index) in the master information block to indicate that the synchronization information belongs to an outer loop period or an inner loop period, where the bit value is 0. Representing the outer loop period, the bit value of 1 represents the inner loop period, and vice versa.
  • sch-index synchronization information identifier
  • the first wireless network device may perform time domain symbol synchronization according to the synchronization information, and the corresponding processing may be as follows: the first wireless network device determines the symbol position of the synchronization information, Time domain symbol synchronization is performed based on the symbol position of the synchronization information.
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information; the first wireless network device determines, according to the time domain location information of the synchronization information, a time domain relative position of the synchronization information in a current synchronization period; the first wireless network device according to a preset time interval relative position of the outer ring period and the synchronization period and/or a time domain relative position of the inner ring period and the synchronization period And determining, by the time domain relative position of the synchronization information in the current synchronization period, that the synchronization information belongs to an outer ring period or an inner ring period; if the synchronization information belongs to an outer ring period, the first wireless network device is The second wireless network device sends feedback information corresponding to the synchronization information.
  • the wireless network device can determine, according to the time domain location information of the received synchronization information, that the synchronization information belongs to the outer ring period or the inner ring period, and then only sends the feedback information of the synchronization information corresponding to the outer ring period, thereby saving the wireless network device. Communication resources.
  • the embodiment of the present application further provides a system for identifying synchronization information, which is provided in this embodiment.
  • the process of the embodiment shown in FIG. 8 can be implemented.
  • the system may include a first wireless network device that implements the process of the embodiment shown in FIG. And the second wireless network device, no more redundant description here.
  • the embodiment further provides a method for performing time domain symbol synchronization, which may include:
  • the first wireless network device may perform time domain symbol synchronization according to the synchronization information, and the corresponding processing may be as follows: the first wireless network device determines the symbol position of the synchronization information, according to the synchronization information. The symbol position is synchronized with the time domain symbol.
  • the first wireless network device may acquire the symbol position of the synchronization information, that is, determine a specific time corresponding to the synchronization information, so that the first time The wireless network device can determine the start time of the next synchronization period, and can receive subsequent information at the beginning of the corresponding subframe.
  • the first wireless network device can determine the symbol location of the synchronization information in multiple manners, and two feasible ways are given as follows:
  • the first wireless network device obtains a beam identifier or a synchronization information index in the synchronization information.
  • the first wireless network device determines the symbol of the synchronization information according to a preset beam identifier or a correspondence between the synchronization information index and the symbol position. position.
  • the first wireless network device may obtain the correspondence between the beam identifier or the synchronization information index and the symbol position set by the second wireless network device in advance, and then obtain the beam identifier or the synchronization information index in the synchronization information, and then pass the The above correspondence determines the symbol position of the synchronization information. For example, there are a total of 8 synchronization information, the symbol position of the synchronization information 0 is 1, 2; the symbol position of the synchronization information 1 is 3, 4; the symbol position of the synchronization information 2 is 5, 6; the symbol position of the synchronization information 3 is 7 , 8; the position of the symbol of the synchronization information 4 is 1, 2, and so on. When the synchronization information index is 2, the symbol position of the synchronization information 2 is 5 and 6.
  • the first wireless network device acquires the symbol position of the synchronization information in the PBCH broadcast information corresponding to the synchronization information.
  • the first wireless network device may obtain the symbol position of the synchronization information from the PBCH broadcast information corresponding to the synchronization information, where the PBCH broadcast information corresponding to the synchronization information is the same as the synchronization information.
  • the beam corresponds to the time domain and/or frequency domain.
  • the PBCH broadcast information may be indicated by 1 bit, specifically the symbol position corresponding to the synchronization information. If there are four synchronization information in one subframe, the PBCH broadcast information may indicate the symbol position corresponding to the synchronization information by using 2 bit unit indication information. For example, a symbol index can be added to the Master Information Block to indicate the symbol position.
  • the method of time domain symbol synchronization described above may be performed after the first wireless network device recognizes the synchronization information.
  • the first wireless network device For a specific method for the first wireless network device to identify the synchronization information, refer to the description in the foregoing embodiment, and details are not described herein.
  • the embodiment further provides a wireless network device that performs time domain symbol synchronization, and the wireless network device may include a plurality of functional modules, where the wireless network device may be the first wireless network device, or The second wireless network device is not described here.
  • the embodiment further provides a system for performing time domain symbol synchronization, comprising a first wireless network device and a second wireless network device implementing the above method.
  • the embodiment of the present application further provides a first wireless network device.
  • the first wireless network device provided in this embodiment may implement the process of the embodiment shown in FIG. 1 of the present application.
  • the first wireless network device includes a receiver 901 and a processor 902, wherein:
  • the receiver 901 is configured to receive synchronization information sent by the second wireless network device.
  • the processor 902 is configured to acquire time domain location information of the synchronization information in synchronization configuration information corresponding to the synchronization information.
  • the processor 902 is configured to determine the synchronization according to a time domain relative position of a synchronization period of an outer loop period and/or a time domain relative position of an inner loop period synchronization period, and time domain location information of the synchronization information.
  • the information belongs to the outer ring period or the inner ring period.
  • the first wireless network device may further include a transmitter 903.
  • the processor 902 may further be configured to send, by the transmitter 903, the second wireless network device by using the transmitter 903 when the synchronization information belongs to an outer ring period. Corresponding to the feedback information of the synchronization information.
  • the time domain location information of the synchronization information is a frame number of a radio frame to which the synchronization information belongs.
  • the outer ring period includes a dedicated discovery subframe, where the dedicated discovery subframe is dedicated to transmitting synchronization information of different cells and/or beams.
  • the processor 902 is configured to:
  • the time domain location information of the synchronization information is acquired in the PBCH broadcast information corresponding to the synchronization information.
  • processor 902 is further configured to:
  • the processor 902 is configured to:
  • the processor 902 is configured to:
  • the radio frame to which the synchronization information belongs is an outer ring radio frame, determining that the synchronization information belongs to an outer ring period, and if the radio frame to which the synchronization information belongs is an inner ring radio frame, determining that the synchronization information belongs to an inner ring. Time period.
  • processor 902 is further configured to:
  • the radio frame to which the synchronization information belongs is a hybrid Obtaining a beam identifier in the synchronization information, where the hybrid radio frame is a radio frame including a partial outer loop period and a partial inner loop period;
  • processor 902 is further configured to:
  • the processor 902 is configured to:
  • the subframe number of the subframe to which the synchronization information belongs is determined according to a preset beam identifier corresponding to the outer ring period in the hybrid radio frame and a beam identifier corresponding to the inner loop period, and a beam identifier in the synchronization information.
  • processor 902 is further configured to:
  • the processor 902 is configured to:
  • the processor 902 is configured to:
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information; the first wireless network device determines, according to the time domain location information of the synchronization information, a time domain relative position of the synchronization information in a current synchronization period; the first wireless network device according to a preset time interval relative position of the outer ring period and the synchronization period and/or a time domain relative position of the inner ring period and the synchronization period And determining, in the time domain relative position of the synchronization information in the current synchronization period, that the synchronization information belongs to an outer loop period or an inner loop period.
  • the wireless network device can determine, according to the time domain location information of the received synchronization information, that the synchronization information belongs to the outer ring period or the inner ring period, and then only sends the feedback information of the synchronization information corresponding to the outer ring period, thereby saving the wireless network device. Communication resources.
  • the embodiment of the present application further provides a first wireless network device.
  • the first wireless network device provided in this embodiment may implement the process of the embodiment shown in FIG. 7 of the present application.
  • the first wireless network device includes a receiver 1001 and a processor 1002, wherein:
  • the receiver 1001 is configured to receive synchronization information sent by the second wireless network device.
  • the processor 1002 is configured to acquire a coding sequence in the synchronization information, where the coding sequence is based on a cell and/or a beam corresponding to the synchronization information, and the synchronization information belongs to an outer ring time period or an inner ring time period. determine;
  • the processor 1002 is configured to determine, according to the coding sequence in the synchronization information, that the synchronization information belongs to an outer ring period or an inner ring period.
  • the first wireless network device further includes a transmitter 1003, where the processor 1002 is further configured to: when the synchronization information belongs to an outer ring period, to the second wireless network by using the transmitter 1003. The device sends the corresponding synchronization Feedback information.
  • the primary synchronization sequence in the coding sequence is determined based on a cell corresponding to the synchronization information, and the synchronization information belongs to an outer ring period or an inner ring period;
  • the processor 1002 is configured to:
  • the secondary synchronization sequence in the coding sequence is determined based on a cell corresponding to the synchronization information, and the synchronization information belongs to an outer ring period or an inner ring period;
  • the processor 1002 is configured to:
  • processor 1002 is further configured to:
  • the processor 1002 is configured to:
  • the processor 1002 is configured to:
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information; the first wireless network device determines, according to the time domain location information of the synchronization information, a time domain relative position of the synchronization information in a current synchronization period; the first wireless network device according to a preset time interval relative position of the outer ring period and the synchronization period and/or a time domain relative position of the inner ring period and the synchronization period And determining, in the time domain relative position of the synchronization information in the current synchronization period, that the synchronization information belongs to an outer loop period or an inner loop period.
  • the wireless network device can determine, according to the time domain location information of the received synchronization information, that the synchronization information belongs to the outer ring period or the inner ring period, and then only sends the feedback information of the synchronization information corresponding to the outer ring period, thereby saving the wireless network device. Communication resources.
  • the embodiment of the present application further provides a second wireless network device.
  • the wireless network device provided in this embodiment may implement the process of the embodiment shown in FIG. 7 of the present application.
  • the device includes a processor 1101 and a transmitter 1102, wherein:
  • the processor 1101 is configured to generate a coding sequence of the synchronization information based on a cell and/or a beam corresponding to the synchronization information to be sent, and based on the synchronization information belonging to an outer ring period or an inner ring period;
  • the transmitter 1102 is configured to send the synchronization information that includes the code sequence to a first wireless network device, where the synchronization information that includes the code sequence is used to determine that the synchronization information belongs to an outer ring according to the code sequence. Time period or inner ring time.
  • the processor 1101 is further configured to feed back, by the transmitter 1102, feedback information corresponding to the synchronization information when the synchronization information belongs to an outer ring period.
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information; the first wireless network device determines, according to the time domain location information of the synchronization information, a time domain relative position of the synchronization information in a current synchronization period; the first wireless network device according to a preset outer ring time period Determining the synchronization information belongs to an outer loop period or a time domain relative position of a synchronization period and/or a time domain relative position of an inner loop period to a synchronization period, and a time domain relative position of the synchronization information in a current synchronization period. Inner ring period.
  • the wireless network device can determine, according to the time domain location information of the received synchronization information, that the synchronization information belongs to the outer ring period or the inner ring period, and then only sends the feedback information of the synchronization information corresponding to the outer ring period, thereby saving the wireless network device. Communication resources.
  • the embodiment of the present application further provides a wireless network device.
  • the wireless network device provided in this embodiment can implement the process of the first wireless network device side of the embodiment shown in FIG. 8 of the present application.
  • the wireless network device includes a receiver 1201 and a processor 1202, wherein:
  • the receiver 1201 is configured to receive synchronization information sent by the second wireless network device.
  • the processor 1202 is configured to obtain the indication information in the PBCH broadcast information corresponding to the synchronization information, where the indication information is used to indicate that the synchronization information belongs to an outer ring period or an inner ring period;
  • the processor 1202 is configured to determine, according to the indication information, that the synchronization information belongs to an outer ring period or an inner ring period.
  • the wireless network device further includes a transmitter 1203, where the processor 1202 is further configured to: when the synchronization information belongs to an outer ring period, send, by the transmitter 1203, the synchronization information to the second wireless network device. Feedback.
  • the value of the indication information is 0 or 1.
  • the value of the indication information is 0 or 1 respectively, indicating that the synchronization information belongs to an outer ring period or an inner ring period.
  • the processor 1202 is further configured to:
  • the processor 1202 is configured to:
  • the processor 1202 is configured to:
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information; the first wireless network device determines, according to the time domain location information of the synchronization information, a time domain relative position of the synchronization information in a current synchronization period; the first wireless network device according to a preset time interval relative position of the outer ring period and the synchronization period and/or a time domain relative position of the inner ring period and the synchronization period And determining, in the time domain relative position of the synchronization information in the current synchronization period, that the synchronization information belongs to an outer loop period or an inner loop period.
  • the wireless network device can determine, according to the time domain location information of the received synchronization information, that the synchronization information belongs to the outer ring period or the inner ring period, and then only sends the feedback information of the synchronization information corresponding to the outer ring period, thereby saving the wireless network device. Communication resources.
  • the embodiment further provides a wireless network device, and the wireless network device provided in this embodiment can implement the process of the second wireless network device side in the embodiment shown in FIG. 8 of the present application, where the wireless network device includes a transmitter and a processor, wherein the processor is configured to generate synchronization information, and carry information indicating that the synchronization information belongs to an outer ring period or an inner ring period in the broadcast information corresponding to the synchronization information, and send the synchronization information by using the transmitter And broadcast information.
  • the wireless network device can also include a receiver. The receiver, the transmitter, and the processor cooperate to implement the functions of the second wireless network device side. For details, refer to the foregoing method flow and the description on the second wireless network side, and details are not described herein.
  • the embodiment of the present application further provides a device for identifying synchronization information.
  • the wireless network device provided in this embodiment can implement the process of the embodiment shown in FIG. 1 of the present application.
  • the device of information includes a receiving module 1301, a first obtaining module 1302, and a first determining module 1303, wherein:
  • the receiving module 1301, the specific function may be implemented by the receiver, and configured to receive synchronization information sent by the second wireless network device;
  • the first obtaining module 1302 the specific function may be implemented by the processor, configured to acquire time domain location information of the synchronization information in the synchronization configuration information corresponding to the synchronization information;
  • the domain location information determines that the synchronization information belongs to an outer ring period or an inner ring period.
  • the device for identifying the synchronization information may further include a sending module 1304, where the specific function may be implemented by the transmitter, if the synchronization information belongs to the outer ring period, to the second wireless
  • the network device sends feedback information corresponding to the synchronization information.
  • the time domain location information of the synchronization information is a frame number of a radio frame to which the synchronization information belongs.
  • the outer ring period includes a dedicated discovery subframe, where the dedicated discovery subframe is dedicated to transmitting synchronization information of different cells and/or beams.
  • the obtaining module 1302 is configured to:
  • the time domain location information of the synchronization information is acquired in the PBCH broadcast information corresponding to the synchronization information.
  • the device further includes:
  • the second determining module 1305 is configured to be implemented by the processor, configured to determine, according to the synchronization period duration and the total number of beams, a time domain relative position of the outer loop period and a synchronization period, and/or a time domain relative period of the inner loop period and the synchronization period. position.
  • the second determining module 1305 is configured to:
  • the first determining module 1303 is configured to:
  • the radio frame to which the synchronization information belongs is an outer ring radio frame, determining that the synchronization information belongs to an outer ring period, and if the radio frame to which the synchronization information belongs is an inner ring radio frame, determining that the synchronization information belongs to an inner ring. Time period.
  • the device further includes:
  • the second obtaining module 1306, the specific function may be implemented by the processor, if the time domain relative position according to the synchronization period of the outer ring radio frame and the time domain relative position of the inner ring radio frame synchronization period, and the synchronization information Time domain location information, determining that the radio frame to which the synchronization information belongs is a hybrid radio frame, acquiring a beam identifier in the synchronization information, where
  • the hybrid radio frame is a radio frame including a partial outer loop period and a partial inner loop period;
  • the specific function may be implemented by the processor, configured to: according to the preset beam identifier corresponding to the outer ring period in the hybrid radio frame and the beam identifier corresponding to the inner ring period, and the beam identifier in the synchronization information And determining that the synchronization information belongs to an outer ring period or an inner ring period.
  • the device further includes:
  • the specific function may be implemented by the processor, if the time domain relative position according to the synchronization period of the outer ring radio frame and the time domain relative position of the inner ring radio frame synchronization period, and the synchronization information Time domain location information, determining that the radio frame to which the synchronization information belongs is a hybrid radio frame, and acquiring a subframe number of the subframe to which the synchronization information belongs;
  • the specific function may be implemented by the processor, configured to: according to the preset subframe number corresponding to the outer ring period in the hybrid radio frame and the subframe number corresponding to the inner ring period, and the subordinate of the synchronization information The subframe number of the frame determines that the synchronization information belongs to an outer loop period or an inner loop period.
  • the third obtaining module 1308 is configured to:
  • the subframe number of the subframe to which the synchronization information belongs is determined according to a preset beam identifier corresponding to the outer ring period in the hybrid radio frame and a beam identifier corresponding to the inner loop period, and a beam identifier in the synchronization information.
  • the device further includes:
  • the fifth determining module 1309 may be implemented by a processor, configured to determine a symbol position of the synchronization information, and perform time domain symbol synchronization according to a symbol position of the synchronization information.
  • the fifth determining module 1309 is configured to:
  • the fifth determining module 1309 is configured to:
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information; the first wireless network device determines, according to the time domain location information of the synchronization information, a time domain relative position of the synchronization information in a current synchronization period; the first wireless network device according to a preset time interval relative position of the outer ring period and the synchronization period and/or a time domain relative position of the inner ring period and the synchronization period And determining, by the time domain relative position of the synchronization information in the current synchronization period, that the synchronization information belongs to an outer ring period or an inner ring period; if the synchronization information belongs to an outer ring period, the first wireless network device is The second wireless network device sends feedback information corresponding to the synchronization information.
  • the wireless network device can determine, according to the time domain location information of the received synchronization information, that the synchronization information belongs to the outer ring period or the inner ring period, and then only sends the feedback information of the synchronization information corresponding to the outer ring period, thereby saving the wireless network device. Communication resources.
  • the embodiment of the present application further provides a device for identifying synchronization information.
  • the wireless network device device provided in this embodiment can implement the process of the embodiment shown in FIG. 7 of the present application.
  • the device for synchronizing information includes a receiving module 1801, an obtaining module 1802, and a first determining module 1803, where:
  • the receiving module 1801, the specific function may be implemented by the receiver, and configured to receive synchronization information sent by the second wireless network device;
  • the obtaining module 1802 the specific function may be implemented by a processor, configured to acquire a coding sequence in the synchronization information, where The code sequence is determined based on a cell and/or a beam corresponding to the synchronization information, and the synchronization information belongs to an outer ring period or an inner ring period;
  • the first determining module 1803 may be implemented by the processor, configured to determine, according to the coding sequence in the synchronization information, that the synchronization information belongs to an outer ring period or an inner ring period.
  • the device for identifying synchronization information further includes a sending module 1804, where the specific function may be implemented by a transmitter, if the synchronization information belongs to an outer ring period, to the second wireless network.
  • the device sends feedback information corresponding to the synchronization information.
  • the primary synchronization sequence in the coding sequence is determined based on a cell corresponding to the synchronization information, and the synchronization information belongs to an outer ring period or an inner ring period;
  • the first determining module 1803 is configured to:
  • the secondary synchronization sequence in the coding sequence is determined based on a cell corresponding to the synchronization information, and the synchronization information belongs to an outer ring period or an inner ring period;
  • the first determining module 1803 is configured to:
  • the device further includes:
  • the second determining module 1804, the specific function may be implemented by the processor, configured to determine a symbol position of the synchronization information, and perform time domain symbol synchronization according to the symbol position of the synchronization information.
  • the second determining module 1804 is configured to:
  • the second determining module 1804 is configured to:
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information; the first wireless network device determines, according to the time domain location information of the synchronization information, a time domain relative position of the synchronization information in a current synchronization period; the first wireless network device according to a preset time interval relative position of the outer ring period and the synchronization period and/or a time domain relative position of the inner ring period and the synchronization period And determining, by the time domain relative position of the synchronization information in the current synchronization period, that the synchronization information belongs to an outer ring period or an inner ring period; if the synchronization information belongs to an outer ring period, the first wireless network device is The second wireless network device sends feedback information corresponding to the synchronization information.
  • the wireless network device can determine, according to the time domain location information of the received synchronization information, that the synchronization information belongs to the outer ring period or the inner ring period, and then only sends the feedback information of the synchronization information corresponding to the outer ring period, thereby saving the wireless network device. Communication resources.
  • the embodiment of the present application further provides a device for identifying synchronization information.
  • the wireless network device provided in this embodiment can implement the process of the embodiment shown in FIG. 7 of the present application.
  • the means for information comprises an encoding module 2001 and a transmitting module 2002, wherein:
  • Encoding module 2001 the specific function may be implemented by a processor, and the second wireless network device is based on the synchronization to be sent Generating a cell and/or a beam corresponding to the information, and generating a coding sequence of the synchronization information based on the synchronization information belonging to an outer ring period or an inner ring period;
  • the sending module 2002 the specific function may be implemented by the transmitter, where the second wireless network device sends the synchronization information including the code sequence to the first wireless network device; the synchronization information including the code sequence is used according to the And a coding sequence, determining that the synchronization information belongs to an outer ring period or an inner ring period.
  • the sending module 2002 is further configured to: if the synchronization information belongs to an outer ring period, feed back feedback information corresponding to the synchronization information.
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information; the first wireless network device determines, according to the time domain location information of the synchronization information, a time domain relative position of the synchronization information in a current synchronization period; the first wireless network device according to a preset time interval relative position of the outer ring period and the synchronization period and/or a time domain relative position of the inner ring period and the synchronization period And determining, by the time domain relative position of the synchronization information in the current synchronization period, that the synchronization information belongs to an outer ring period or an inner ring period; if the synchronization information belongs to an outer ring period, the first wireless network device is The second wireless network device sends feedback information corresponding to the synchronization information.
  • the wireless network device can determine, according to the time domain location information of the received synchronization information, that the synchronization information belongs to the outer ring period or the inner ring period, and then only sends the feedback information of the synchronization information corresponding to the outer ring period, thereby saving the wireless network device. Communication resources.
  • the embodiment of the present application further provides a device for identifying synchronization information.
  • the wireless network device provided in this embodiment can implement the first wireless network device side of the embodiment shown in FIG. 8 of the present application.
  • the device for identifying synchronization information includes a receiving module 2101, an obtaining module 2102, and a first determining module 2103, where:
  • the receiving module 2101 the specific function may be implemented by the receiver, and configured to receive synchronization information sent by the second wireless network device;
  • the obtaining module 2102 is configured to be used by the processor to obtain the indication information in the PBCH broadcast information corresponding to the synchronization information, where the indication information is used to indicate that the synchronization information belongs to an outer ring period or an inner ring period ;
  • the first determining module 2103 is configured to be implemented by the processor, and is configured to determine, according to the indication information, that the synchronization information belongs to an outer ring period or an inner ring period.
  • the device for identifying synchronization information further includes a sending module 2104, where the specific function may be implemented by a transmitter, if the synchronization information belongs to an outer ring period, to the second wireless network.
  • the device sends feedback information corresponding to the synchronization information.
  • the value of the indication information is 0 or 1.
  • the value of the indication information is 0 or 1 respectively, indicating that the synchronization information belongs to an outer ring period or an inner ring period.
  • the device further includes:
  • the second determining module 2105 is configured to be implemented by the processor, configured to determine a symbol position of the synchronization information, and perform time domain symbol synchronization according to the symbol position of the synchronization information.
  • the second determining module 2105 is configured to:
  • the second determining module 2105 is configured to:
  • the first wireless network device acquires a symbol position of the synchronization information in the PBCH broadcast information corresponding to the synchronization information.
  • the first wireless network device receives the synchronization information sent by the second wireless network device, and acquires the time domain location information of the synchronization information; the first wireless network device determines, according to the time domain location information of the synchronization information, a time domain relative position of the synchronization information in a current synchronization period; the first wireless network device according to a preset time interval relative position of the outer ring period and the synchronization period and/or a time domain relative position of the inner ring period and the synchronization period And determining, by the time domain relative position of the synchronization information in the current synchronization period, that the synchronization information belongs to an outer ring period or an inner ring period; if the synchronization information belongs to an outer ring period, the first wireless network device is The second wireless network device sends feedback information corresponding to the synchronization information.
  • the wireless network device can determine, according to the time domain location information of the received synchronization information, that the synchronization information belongs to the outer ring period or the inner ring period, and then only sends the feedback information of the synchronization information corresponding to the outer ring period, thereby saving the wireless network device. Communication resources.
  • the apparatus for identifying the synchronization information is only illustrated by the division of the foregoing functional modules. In an actual application, the functions may be allocated by different functional modules according to requirements. Upon completion, the internal structure of the wireless network device is divided into different functional modules to perform all or part of the functions described above.
  • the device for identifying the synchronization information provided by the foregoing embodiment is the same as the method for identifying the synchronization information, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本申请公开了一种识别同步信息的方法和装置,属于通信领域。所述方法包括:第一无线网络设备接收第二无线网络设备发送的同步信息,在所述同步信息对应的同步配置信息中,获取所述同步信息的时域位置信息,第一无线网络设备根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息属于外环时段或内环时段。采用本申请,可以节省无线网络设备的通信资源。

Description

一种识别同步信息的方法和装置
本申请要求于2016年1月26日提交中国专利局、申请号为201610051946.X、发明名称为“一种识别同步信息的方法和装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信领域,特别涉及一种识别同步信息的方法和装置。
背景技术
随着通信技术的飞速发展,为了减少通信信号在传输过程中的衰减,基站与无线网络设备间更多的采用波束的形式进行通信,可以提升信号发送的距离,这样基站发送的信号可以覆盖更大的范围。
一般基站与无线网络设备进行通信时需要周期性的进行信息同步。一个同步周期包含外环时段(可称为发现消息时段)和内环时段(可称为公共消息时段),在信息同步的过程中,在一个同步周期的外环时段内,基站一般会在相邻的各无线帧中,向不同的方向(每个方向对应一个波束)发送不同的同步信息。无线网络设备每接收到一个同步信息后,可以基于同步信息接入基站,并向基站发送对应的反馈消息,以通知基站在内环时段中在该方向上发送后续消息。
在实现本申请的过程中,发明人发现相关技术至少存在以下问题:
为了降低无线网络设备接入基站的延迟,基站在内环时段发送后续消息时也会发送同步信息,而无线网络设备接收到基站在内环时段发送的同步信息后,无法区分该同步信息所属的时段,则会向基站发送原本无需发送的反馈消息,这样会对无线网络设备的通信资源造成浪费。
发明内容
为了解决相关技术的问题,本申请实施例提供了一种识别同步信息的方法和装置。所述技术方案如下:
第一方面,提供了一种识别同步信息的方法,所述方法包括:
第一无线网络设备接收第二无线网络设备发送的同步信息,在所述同步信息对应的同步配置信息中,获取所述同步信息的时域位置信息;
第一无线网络设备根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息属于外环时段或内环时段。
其中,同步信息可以是第一无线网络设备用于与第二无线网络设备进行时频同步的信息,时域位置信息可以是同步信息的所属的无线帧的帧号。同步配置信息可以是对应于同步信息进行无线通信资源配置的信息,如PBCH广播信息。时域相对位置可以是外环时段和内环时段 在同步周期中对应的具体时间段,具体可以表现为对应的无线帧的帧号。
第二无线网络设备可以按照预设的同步周期,在每个同步周期的外环时段内,对其服务的每个小区或者波束,以波束的方式发送同步信息,进而第一无线网络设备可以获取该同步信息对应的同步配置信息,并从同步配置信息中获取同步信息的时域位置信息。第一无线网络设备可以在获取到同步信息所属的无线帧的帧号后,根据外环时段和内环时段在同步周期中对应的无线帧的帧号,判断该同步信息所属的无线帧的帧号为外环时段的无线帧的帧号还是内环时段的无线帧的帧号,从而可以确定该同步信息属于外环时段或内环时段。如果第一无线网络设备确定接收到的同步信息属于外环时段,第一无线网络设备则可以在当前同步周期中配置的上行资源中向第二无线网络设备发送反馈信息,该反馈信息与上述同步信息对应,以使第二无线网络设备即获知该同步信息所属的波束方向上存在发送后续信息的需求。
结合第一方面,在该第一方面的第一种可能实现方式中,所述同步信息的时域位置信息为所述同步信息的所属的无线帧的帧号。
结合第一方面或第一方面的第一种可能实现方式,在该第一方面的第二种可能实现方式中,所述外环时段中包括专用发现子帧,所述专用发现子帧用于发送不同小区和/或波束的同步信息。
这样,外环时段采用专用发现子帧发送同步信息可以保证第二无线网络设备在同步周期的最初几个子帧内发送完所有的同步信息,从而第一无线网络设备可以尽早接收到相应的同步信息。
结合第一方面或第一方面的第一种至第二种可能实现方式,在该第一方面的第三种可能实现方式中,所述在所述同步信息对应的同步配置信息中,获取所述同步信息的时域位置信息,包括:
在所述同步信息对应的PBCH广播信息中,获取所述同步信息的时域位置信息。
这样,在接收到同步信息后,可以从与同步信息相关的配置信息中获取同步信息的时域位置信息。
结合第一方面或第一方面的第一种至第三种可能实现方式,在该第一方面的第四种可能实现方式中,所述方法还包括:
第一无线网络设备根据所述同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
如果同步周期时长为T,而已知一个无线帧的长度为Trf,一个子帧的长度为Tsf,则可以确定一个同步周期包含Nrf=T/Trf个无线帧,一个无线帧包含Nsf=Trf/Tsf个子帧。同时,如果波束总数为N,每个无线帧中可携带K个波束的同步信息,则对于无线帧的帧号nrf,如果nrf大于或等于k·Nrf且小于k·Nrf+(N/K),k为自然数,则该无线帧属于外环时段,否则属于内环时段。
这样,可以直接根据同步周期时长和波束总数确定内外环时段在同步周期中的位置。
结合第一方面的第四种可能实现方式,在该第一方面的第五种可能实现方式中,所述第一无线网络设备根据所述同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,包括:
第一无线网络设备根据预先设置的同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置;或者,
第一无线网络设备根据RRC信令中携带的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置;或者,
第一无线网络设备根据PBCH广播信息中携带的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
其中,同步周期时长和波束总数的指示信息可以分别由不同的方式获取。
这样,可以通过多种方式获得同步周期时长和波束总数。
结合第一方面或第一方面的第一种至第五种可能实现方式,在该第一方面的第六种可能实现方式中,所述第一无线网络设备根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息属于外环时段或内环时段,包括:
第一无线网络设备根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为外环无线帧或内环无线帧;
如果所述同步信息所属的无线帧为外环无线帧,第一无线网络设备则确定所述同步信息属于外环时段,如果所述同步信息所属的无线帧为内环无线帧,第一无线网络设备则确定所述同步信息属于内环时段。
这样,可以根据同步信息属于外环无线帧还是内环无线帧确定同步信息属于外环还是内环。
结合第一方面的第六种可能实现方式,在该第一方面的第七种可能实现方式中,所述方法还包括:
如果根据外环无线帧较同步周期的时域相对位置和内环无线帧较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为混合无线帧,第一无线网络设备则获取所述同步信息中的波束标识,其中,所述混合无线帧是包含部分外环时段和部分内环时段的无线帧;
第一无线网络设备根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及所述同步信息中的波束标识,确定所述同步信息属于外环时段或内环时段。
如果存在某一个无线帧同时包含部分内环时段和部分外环时段,则认为该无线帧为混合无线帧。第一无线网络设备可以在获取到同步信息所属的无线帧的帧号后,根据外环无线帧和内环无线帧在同步周期中对应的无线帧的帧号,判断该同步信息所属的无线帧的帧号为外环时段的无线帧的帧号还是内环时段的无线帧的帧号,亦或是混合无线帧的帧号。如果第一无线网络设备确定接收到的同步信息所属的无线帧的帧号为混合无线帧的帧号,则可以确定该同步信息所属的无线帧为混合无线帧,进而第一无线网络设备可以获取同步信息中的波束标识。
第二无线网络设备可以预先设定混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,即设定在该混合无线帧中发送的同步信息中的波束标识与内外环时段的对应关系。在一种可选的方案中,内环时段发送的同步信息对应的子帧是固定的。这样,第一无线网络设备可以根据同步信息中的波束标识,从而在上述对应关系中确定该同步信息属于外环时段或内环时段。
这样,可以根据同步信息的波束标识直接确定同步信息属于外环还是内环。
结合第一方面的第六种可能实现方式,在该第一方面的第八种可能实现方式中,所述方法还包括:
如果根据外环无线帧较同步周期的时域相对位置和内环无线帧较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为混合无线帧,第一无线网络设备则获取所述同步信息所属子帧的子帧号;
第一无线网络设备根据预先设置的在混合无线帧中外环时段对应的子帧号和内环时段对应的子帧号,以及所述同步信息所属子帧的子帧号,确定所述同步信息属于外环时段或内环时段。
第一无线网络设备可以在获取到同步信息所属的无线帧的帧号后,根据外环无线帧和内环无线帧在同步周期中对应的无线帧的帧号,判断该同步信息所属的无线帧的帧号为外环时段的无线帧的帧号还是内环时段的无线帧的帧号,亦或是混合无线帧的帧号。如果第一无线网络设备确定接收到的同步信息所属的无线帧的帧号为混合无线帧的帧号,则可以确定该同步信息所属的无线帧为混合无线帧,进而第一无线网络设备可以获取同步信息中的波束标识。
第二无线网络设备可以预先设定混合无线帧中外环时段对应的子帧号和内环时段对应的子帧号,即设定在该混合无线帧中发送的同步信息中的子帧号与内外环时段的对应关系。在一种可选的方案中,内环时段发送的同步信息对应的子帧是固定的。这样,第一无线网络设备可以根据同步信息所属子帧的子帧号以及上述对应关系确定该同步信息属于外环时段或内环时段。
这样,可以根据同步信息所属子帧的子帧号直接确定同步信息属于外环还是内环。
结合第一方面的第八种可能实现方式,在该第一方面的第九种可能实现方式中,所述获取所述同步信息所属子帧的子帧号,包括:
第一无线网络设备在所述同步信息对应的PBCH广播信息中获取所述同步信息所属子帧的子帧号;或者,
第一无线网络设备根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及所述同步信息中的波束标识,确定所述同步信息所属子帧的子帧号。
第二无线网络设备可以在每个同步信息对应的PBCH广播信息信道中发送对应该同步信息的PBCH广播信息信息。第一无线网络设备接收到一个同步信息后,可以从该同步信息对应的PBCH广播信息中获取同步信息所属子帧的子帧号。或者,第二无线网络设备可以预先设置有混合无线帧中内外环时段和同步信息中的波束标识的对应关系,这样,当第一无线网络设备获取到同步信息中的波束标识后,可以在上述对应关系中确定同步信息所属子帧的子帧号。
这样,可以通过多种方式获取同步信息所属子帧的子帧号。
结合第一方面或第一方面的第一种至第九种可能实现方式,在该第一方面的第十种可能实现方式中,在所述第一无线网络设备接收第二无线网络设备发送的同步信息之后,所述方法还包括:
第一无线网络设备确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
当一个子帧中携带有多个同步信息的时候,第一无线网络设备接收到同步信息之后,可以获取同步信息的符号位置,即确定同步信息所对应的具体时间,从而第一无线网络设备可 以确定下一个同步周期的开始时间,则可以在对应的子帧开始的时刻接收后续信息。
这样,进行时域符号同步可以确定下一个同步周期的开始时间,在对应的子帧开始的时刻接收后续信息。
结合第一方面的第十种可能实现方式,在该第一方面的第十一种可能实现方式中,所述确定所述同步信息的符号位置,包括:
第一无线网络设备获取所述同步信息中的波束标识或同步信息索引;
第一无线网络设备根据预设的波束标识或同步信息索引与符号位置的对应关系,确定所述同步信息的符号位置。
第一无线网络设备可以预先获得第二无线网络设备设置的波束标识或同步信息索引和符号位置的对应关系,然后在获取到同步信息中的波束标识或同步信息索引后,通过上述对应关系确定同步信息的符号位置。
这样,可以根据同步信息的波束标识或同步信息索引确定同步信息的符号位置。
结合第一方面的第十种可能实现方式,在该第一方面的第十二种可能实现方式中,所述确定所述同步信息的符号位置,包括:
第一无线网络设备在所述同步信息对应的PBCH广播信息中获取所述同步信息的符号位置。
第一无线网络设备接收到一个同步信息后,可以从该同步信息对应的PBCH广播信息中获取同步信息的符号位置。
这样,可以从同步信息对应的PBCH广播信息中获取同步信息的符号位置。
第二方面,提供了一种同步信息的传输方法,所述方法包括:
第二无线网络设备向第一无线网络设备发送同步信息以及与所述同步信息对应的同步配置信息,所述同步配置信息中包含所述同步信息的时域位置信息。
结合第二方面,在该第二方面的第一种可能实现方式中,所述同步信息对应的同步配置信息包括RRC信令和/或PBCH广播信息。
结合第二方面的第一种可能实现方式,在该第二方面的第二种可能实现方式中,所述RRC信令和/或PBCH广播信息中包括同步周期时长和波束总数的指示信息。
结合第二方面的第一种可能实现方式,在该第二方面的第三种可能实现方式中,所述PBCH广播信息中还包括所述同步信息所属子帧的子帧号。
结合第二方面的第一种可能实现方式,在该第二方面的第四种可能实现方式中,所述PBCH广播信息中还包括所述同步信息的符号位置。
第三方面,提供了一种识别同步信息的方法,所述方法包括:
第一无线网络设备接收第二无线网络设备发送的同步信息;
第一无线网络设备获取所述同步信息中的编码序列,其中,所述编码序列基于所述同步信息对应的小区和/或波束以及所述同步信息属于外环时段或内环时段而确定;
第一无线网络设备根据所述同步信息中的编码序列,确定所述同步信息属于外环时段或内环时段。
可以对现有编码规则进行调整,使得同一同步信息分别处于外环时段与内环时段时的编 码序列不同。第二无线网络设备采用调整后的编码规则对同步信息进行编码。第一无线网络设备在接收到第二无线网络设备发送的同步信息后,可以获取同步信息中的编码序列,如果同步信息中的编码序列符合外环时段的同步信息的编码序列,则可以确定该同步信息属于外环时段,进而可以向第二无线网络设备发送对应该同步信息的反馈信息。
结合第三方面,在该第三方面的第一种可能实现方式中,所述编码序列中的主同步序列基于所述同步信息对应的小区以及所述同步信息属于外环时段或内环时段而确定;
所述第一无线网络设备根据所述同步信息中的编码序列,确定所述同步信息属于外环时段或内环时段,包括:
第一无线网络设备根据所述同步信息中的编码序列中的主同步序列,确定所述同步信息属于外环时段或内环时段。
可以基于同步信息对应的小区以及同步信息属于外环时段或内环时段对编码序列中的主同步序列进行设计,对于属于不同时段的同步信息,其主同步序列的根指数不同。第二无线网络设备采用调整后的编码规则对同步信息进行编码。这样,可以根据同步信息的主同步序列确定同步信息属于外环时段还是内环时段。
结合第三方面,在该第三方面的第二种可能实现方式中,所述编码序列中的辅同步序列基于所述同步信息对应的小区以及所述同步信息属于外环时段或内环时段而确定;
所述第一无线网络设备根据所述同步信息中的编码序列,确定所述同步信息属于外环时段或内环时段,包括:
第一无线网络设备根据所述同步信息中的编码序列中的辅同步序列,确定所述同步信息属于外环时段或内环时段。
第二无线网络设备可以基于同步信息对应的小区以及同步信息属于外环时段或内环时段对编码序列中的辅同步序列进行设计,对于属于不同时段的同步信息,其具体的编码规则不同。进而,当第一无线网络设备接收到同步信息后,可以根据辅同步序列确定该同步信息属于外环时段还是内环时段。
这样,可以根据同步信息的辅同步序列确定同步信息属于外环时段还是内环时段。
结合第三方面或第三方面的第一种至第二种可能实现方式,在该第三方面的第三种可能实现方式中,在所述第一无线网络设备接收第二无线网络设备发送的同步信息之后,所述方法还包括:
第一无线网络设备确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
当一个子帧中携带有多个同步信息的时候,第一无线网络设备接收到同步信息之后,可以获取同步信息的符号位置,即确定同步信息所对应的具体时间,从而第一无线网络设备可以确定下一个同步周期的开始时间,则可以在对应的子帧开始的时刻接收后续信息。
这样,进行时域符号同步可以确定下一个同步周期的开始时间,在对应的子帧开始的时刻接收后续信息。
结合第三方面的第三种可能实现方式,在该第三方面的第四种可能实现方式中,所述确定所述同步信息的符号位置,包括:
第一无线网络设备获取所述同步信息中的波束标识或同步信息索引;
第一无线网络设备根据预设的波束标识或同步信息索引与符号位置的对应关系,确定所 述同步信息的符号位置。
第一无线网络设备可以预先获得第二无线网络设备设置的波束标识或同步信息索引和符号位置的对应关系,然后在获取到同步信息中的波束标识或同步信息索引后,通过上述对应关系确定同步信息的符号位置。
这样,可以根据同步信息的波束标识或同步信息索引确定同步信息的符号位置。
结合第三方面的第三种可能实现方式,在该第三方面的第五种可能实现方式中,所述确定所述同步信息的符号位置,包括:
第一无线网络设备在所述同步信息对应的PBCH广播信息中获取所述同步信息的符号位置。
第一无线网络设备接收到一个同步信息后,可以从该同步信息对应的PBCH广播信息中获取同步信息的符号位置。
这样,可以从同步信息对应的PBCH广播信息中获取同步信息的符号位置。
第四方面,提供了一种同步信息的传输方法,所述方法包括:
第二无线网络设备基于待发送的同步信息对应的小区和/或波束,并基于所述同步信息属于外环时段或内环时段,生成所述同步信息的编码序列;
第二无线网络设备向第一无线网络设备发送包含所述编码序列的所述同步信息;所述编码序列用于区分所述同步信息属于外环时段或内环时段。
第二无线网络设备可以基于调整后的编码规则对同步信息进行编码,使得同一同步信息分别处于外环时段与内环时段时的编码序列不同。第一无线网络设备在接收到第二无线网络设备发送的同步信息后,可以获取同步信息中的编码序列,如果同步信息中的编码序列符合外环时段的同步信息的编码序列,则可以确定该同步信息属于外环时段,进而可以向第二无线网络设备发送对应该同步信息的反馈信息。
第五方面,提供了一种识别同步信息的方法,所述方法包括:
第一无线网络设备接收第二无线网络设备发送的同步信息;
第一无线网络设备获取所述同步信息对应的PBCH广播信息中的指示信息,其中,所述指示信息用于指示所述同步信息属于外环时段或内环时段;
第一无线网络设备根据所述指示信息确定所述同步信息属于外环时段或内环时段。
第一无线网络设备在接收到第二无线网络设备发送的同步信息后,可以获取对应的PBCH广播信息中的指示信息,然后根据指示信息确定同步信息所属的时段,如果同步信息属于外环时段,则可以向第二无线网络设备发送对应同步信息的反馈信息。
结合第五方面,在该第五方面的第一种可能实现方式中,所述指示信息的取值为0或1,其中,所述指示信息的取值为0或1时分别指示所述同步信息属于外环时段或内环时段。
这样,可以通过数据量很小的信息标识出同步信息所属的时段。
结合第五方面或第五方面的第一种可能实现方式,在该第五方面的第二种可能实现方式中,在所述第一无线网络设备接收第二无线网络设备发送的同步信息之后,所述方法还包括:
第一无线网络设备确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
当一个子帧中携带有多个同步信息的时候,第一无线网络设备接收到同步信息之后,可以获取同步信息的符号位置,即确定同步信息所对应的具体时间,从而第一无线网络设备可以确定下一个同步周期的开始时间,则可以在对应的子帧开始的时刻接收后续信息。
这样,进行时域符号同步可以确定下一个同步周期的开始时间,在对应的子帧开始的时刻接收后续信息。
结合第五方面的第二种可能实现方式,在该第五方面的第三种可能实现方式中,所述确定所述同步信息的符号位置,包括:
第一无线网络设备获取所述同步信息中的波束标识或同步信息索引;
第一无线网络设备根据预设的波束标识或同步信息索引与符号位置的对应关系,确定所述同步信息的符号位置。
第一无线网络设备可以预先获得第二无线网络设备设置的波束标识或同步信息索引和符号位置的对应关系,然后在获取到同步信息中的波束标识或同步信息索引后,通过上述对应关系确定同步信息的符号位置。
这样,可以根据同步信息的波束标识或同步信息索引确定同步信息的符号位置。
结合第五方面的第二种可能实现方式,在该第五方面的第四种可能实现方式中,所述确定所述同步信息的符号位置,包括:
第一无线网络设备在所述同步信息对应的PBCH广播信息中获取所述同步信息的符号位置。
第一无线网络设备接收到一个同步信息后,可以从该同步信息对应的PBCH广播信息中获取同步信息的符号位置。
这样,可以从同步信息对应的PBCH广播信息中获取同步信息的符号位置。
第六方面,提供了一种同步信息的传输方法,所述方法包括:
第二无线网络设备向第一无线网络设备发送同步信息,并在同步信息对应的PBCH广播信息中携带指示信息,其中,所述指示信息用于指示所述同步信息属于外环时段或内环时段。
结合第六方面,在该第六方面的第一种可能实现方式中,在所述同步信息对应的PBCH广播信息中添加所述同步信息的符号位置。
第七方面,提供了一种无线网络设备,所述无线网络设备包括接收器、处理器、发射器,所述处理器用于控制接收器和发射器进行信号的接收和发送,当处理器执行上述识别同步信息的处理时,所述无线网络设备用于完成如第一方面或第一方面的所有可能的实施方式的任意一种的方法,或,第三方面或第三方面的所有可能的实施方式的任意一种的方法,如第五方面或第五方面的所有可能的实施方式的任意一种的方法。
第八方面,提供了一种用于传输同步信息的无线网络设备,其特征在于,所述无线网络设备包括处理器,发射器,所述处理器用于控制发射器进行信号的发送,当处理器执行上述识别同步信息的处理时,所述无线网络设备用于完成如第二方面或第二方面的所有可能的实施方式的任意一种的方法,或,第四方面或第四方面的所有可能的实施方式的任意一种的方法,或,第六方面或第六方面的所有可能的实施方式的任意一种的方法。
本公开的实施例提供的技术方案可以包括以下有益效果:
本公开实施例中,第一无线网络设备接收第二无线网络设备发送的同步信息,获取所述同步信息的时域位置信息;第一无线网络设备根据所述同步信息的时域位置信息,确定所述同步信息在当前的同步周期中的时域相对位置;第一无线网络设备根据预先设置的外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息在当前的同步周期中的时域相对位置,确定所述同步信息属于外环时段或内环时段。这样,无线网络设备可以根据接收到的同步信息的时域位置信息确定同步信息属于外环时段或内环时段,进而只发送对应外环时段的同步信息的反馈信息,从而可以节省无线网络设备的通信资源。
附图说明
图1是本申请实施例提供的一种识别同步信息的方法流程图;
图2是本申请实施例提供的一种同步周期的示意图;
图3是本申请实施例提供的一种外环周期和内环周期的示意图;
图4是本申请实施例提供的一种外环时段和内环时段的时域相对位置的示意图;
图5是本申请实施例提供的一种外环无线帧、内环无线帧和混合无线帧的示意图;
图6是本申请实施例提供的一种专用发现子帧的示意图;
图7是本申请实施例提供的一种识别同步信息的方法流程图;
图8是本申请实施例提供的一种识别同步信息的方法流程图;
图9是本申请实施例提供的一种识别同步信息的装置结构示意图;
图10是本申请实施例提供的一种识别同步信息的装置结构示意图;
图11是本申请实施例提供的一种识别同步信息的装置结构示意图;
图12是本申请实施例提供的一种识别同步信息的装置结构示意图;
图13是本申请实施例提供的一种识别同步信息的装置结构示意图;
图14是本申请实施例提供的一种识别同步信息的装置结构示意图;
图15是本申请实施例提供的一种识别同步信息的装置结构示意图;
图16是本申请实施例提供的一种识别同步信息的装置结构示意图。
具体实施方式
如本申请所使用的,术语“组件”、“模块”、“系统”等等旨在指代计算机相关实体,该计算机相关实体可以是硬件、固件、硬件和软件的结合、软件或者运行中的软件。例如,组件可以是,但不限于是:在处理器上运行的处理、处理器、对象、可执行文件、执行中的线程、程序和/或计算机。作为示例,在计算设备上运行的应用和该计算设备都可以是组件。一个或多个组件可以存在于执行中的过程和/或线程中,并且组件可以位于一个计算机中以及/或者分布在两个或更多个计算机之间。此外,这些组件能够从在其上具有各种数据结构的各种计算机可读介质中执行。这些组件可以通过诸如根据具有一个或多个数据分组(例如,来自一个组件的数据,该组件与本地系统、分布式系统中的另一个组件进行交互和/或以信号的方式通过诸如互联网之类的网络与其它系统进行交互)的信号,以本地和/或远程过程的方式进 行通信。
此外,本申请结合无线网络设备来描述各个方面,该无线网络设备可以为基站,基站可以用于与一个或多个用户设备进行通信,也可以用于与一个或多个具有部分用户设备功能的基站进行通信(比如宏基站与微基站,如接入点,之间的通信);该无线网络设备还可以为用户设备,用户设备可以用于一个或多个用户设备进行通信(比如D2D通信),也可以用于与一个或多个基站进行通信。用户设备还可以称为用户终端,并且可以包括系统、用户单元、用户站、移动站、移动无线终端、移动设备、节点、设备、远程站、远程终端、终端、无线通信设备、无线通信装置或用户代理的功能中的一些或者所有功能。用户设备可以是蜂窝电话、无绳电话、会话发起协议(SIP)电话、智能电话、无线本地环路(WLL)站、个人数字助理(PDA)、膝上型计算机、手持式通信设备、手持式计算设备、卫星无线设备、无线调制解调器卡和/或用于在无线系统上进行通信的其它处理设备。基站还可以称为接入点、节点、节点B、演进节点B(eNB)或某种其它网络实体,并且可以包括以上网络实体的功能中的一些或所有功能。基站可以通过空中接口与无线终端进行通信。该通信可以通过一个或多个扇区来进行。基站可以通过将所接收的空中接口帧转换成IP分组,来用作无线终端和接入网络的其余部分之间的路由器,其中所述接入网络包括互联网协议(IP)网络。基站还可以对空中接口属性的管理进行协调,并且还可以是有线网络和无线网络之间的网关。无线网络设备可以包括接收器、处理器和发射器,接收器、发射器可以分别与处理器连接。接收器可以用于接收信号,接收器可以包括但不限于天线、一个或多个振荡器、耦合器、低噪声放大器(low noise amplifier,LNA)、双工器、模数转换器、变频器等硬件中的一项或多项。发射器可以用于发送信号,发射器可以包括但不限于天线、一个或多个振荡器、耦合器、功率放大器(power amplifier,PA)、双工器、数模转换器、变频器等硬件中的一项或多项。发射器和接收器可以合称为收发器,它们各自所包括的硬件部分可以依据实际需求进行共用。在本申请中,处理器可以用于接收或发送消息的相关处理,处理器可以包括一个或多个处理单元;处理器可以是通用处理器,包括中央处理器(Central Processing Unit,CPU)、网络处理器(Network Processor,NP)等;还可以是数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件等。具体地,程序可以包括程序代码,程序代码包括计算机操作指令。
本申请将围绕可包括多个设备、组件、模块等的系统来呈现各个方面、实施例或特征。应当理解和明白的是,各个系统可以包括另外的设备、组件、模块等,并且/或者可以并不包括结合附图讨论的所有设备、组件、模块等。此外,还可以使用这些方案的组合。
另外,在本申请实施例中,“示例的”一词用于表示作例子、例证或说明。本申请中被描述为“示例”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用示例的一词旨在以具体方式呈现概念。
本申请实施例中,信息(information),信号(signal),消息(message),信道(channel)有时可以混用,应当指出的是,在不强调其区别时,其所要表达的含义是一致的。“的(of)”,“相应的(corresponding,relevant)”和“对应的(corresponding)”有时可以混用,应当指出的是,在不强调其区别时,其所要表达的含义是一致的。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着 网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
本申请实施例既可以应用于时分双工(time division duplexing,TDD)的场景,也可以适用于频分双工(frequency division duplexing,FDD)的场景。
本申请实施例既可以用于单载波系统,也可以用于多载波系统,可以用于高频(高于6GHz频段)或低频通信系统(低于6GHz频段)。
本申请实施例依托无线通信网络中4G网络的场景进行说明,应当指出的是,本申请实施例中的方案还可以应用于其他无线通信网络中,相应的名称也可以用其他无线通信网络中的对应功能的名称进行替代。下面将结合具体实施方式,对图1所示的同步信息识别方法的流程进行说明。
步骤101,第一无线网络设备接收第二无线网络设备发送的同步信息,在所述同步信息对应的同步配置信息中,获取同步信息的时域位置信息。
步骤102,第一无线网络设备根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及同步信息的时域位置信息,确定同步信息属于外环时段或内环时段。
可选的,还可以包括:
步骤103,如果同步信息属于外环时段,第一无线网络设备则向第二无线网络设备发送对应同步信息的反馈信息。
其中,同步信息可以是第一无线网络设备用于与第二无线网络设备进行时频同步的信息,时域位置信息可以是同步信息的所属的无线帧的帧号。同步配置信息可以是对应于同步信息进行无线通信资源配置的信息,如物理广播信道广播信息(Physical Broadcast Channel,PBCH)中的信息。
步骤101的一种示例中,在第二无线网络设备中,可以预先设置同步周期,并设置每个同步周期的前一部分为外环时段,后一部分为内环时段,外环时段又可以划分为多个子时段,其中,一个子时段可以是一个无线帧、一个子帧或者多个符号等通信时间单元,每个子时段对应第二无线网络设备服务的一个小区或者波束,其中,同一个小区中可以包括多个不同的波束(本申请中未标明处均以波束为单位)。如图2所示,每个方格可以分别对应一个无线帧,B0、B1、…、BN-1可以是分别对应不同的小区或者波束。第二无线网络设备可以按照预设的同步周期,在每个同步周期的外环时段内,对其服务的每个小区或者波束,以波束的方式发送同步信息,如果第一无线网络设备处于该第二无线网络设备的信号覆盖范围内,且第一无线网络设备的天线持续处于可接收信号的状态,第一无线网络设备则可以搜索并接收第二无线网络设备向外广播的同步信息。进而第一无线网络设备可以获取同步信息的时域位置信息,即同步信息的所属的无线帧的帧号。此处,同步配置信息可以与同步信息属于相同的时域位置,如属于同一无线帧或者同一子帧,或者同步配置信息与同步信息属于同一波束,同时,一条同步信息可以对应一条同步配置信息,也可以多条同步信息对应一条同步配置信息。需要说明的是,可以将一个同步周期称为外环周期,外环周期由外环时段和内环时段共同组成,一个内环时段又可以包括多个内环周期,如图3所示。
步骤102中,时域相对位置可以是外环时段和内环时段在同步周期中对应的具体时间段,具体可以表现为对应的无线帧的帧号。
在一种可能的实施中,第一无线网络设备可以在获取到同步信息所属的无线帧的帧号后,根据外环时段和内环时段在同步周期中对应的无线帧的帧号,判断该同步信息所属的无线帧的帧号为外环时段的无线帧的帧号还是内环时段的无线帧的帧号,从而可以确定该同步信息属于外环时段或内环时段。例如,外环时段的无线帧的帧号为1-5,内环时段的无线帧的帧号为5-40,而同步信息的所属的无线帧的帧号为4,则可以确定此无线帧属于外环时段,进而可以确定该同步信息属于外环时段。
可选的,第一无线网络设备可以根据所述同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
在实施中,如果同步周期时长为T,而已知一个无线帧的长度为Trf,一个子帧的长度为Tsf,则可以确定一个同步周期包含Nrf=T/Trf个无线帧,一个无线帧包含Nsf=T/Tsf个子帧。同时,如果波束总数为N,每个无线帧中可携带K个波束的同步信息,则对于无线帧的帧号nrf,如果nrf大于或等于k·Nrf且小于k·Nrf+(N/K),k为自然数(本实施例中,帧号包括0,相应的k也包括0),则该无线帧属于外环时段,否则属于内环时段。例如,波束总数为12,一个同步周期时长为40ms,每个无线帧的长度为1ms,则一个同步周期包含40个无线帧,同时可以在协议中设定或者预先告知第一无线网络设备每个无线帧携带4个波束的同步信息,则外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置为:每个同步周期中前3个无线帧属于外环时段,后37个无线帧属于内环时段,如图4所示。
可选的,第一无线网络设备可以通过多种方式获取上述同步周期时长和波束总数,如下给出了三种可行的方式:
方式一,根据预先设置的同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
方式二,根据无线资源控制(Radio Resource Control,RRC)信令中包括的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
方式三,根据PBCH广播信息中包括的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
其中,同步周期时长和波束总数可以分别由不同的方式获取。指示信息可以是具体的同步周期时长和波束总数,也可以是用于确定同步周期时长和波束总数的其它信息。
可以理解的是,当每个无线帧所携带的同步信息所对应的波束的个数K是预先告知第一无线网络设备的,则还包括第一无线网络设备获取该K的值。
可选的,内环时段的无线帧可称为内环无线帧,外环时段的无线帧可称为外环无线帧,相应的,步骤103的处理可以如下:第一无线网络设备根据外环无线帧较同步周期的时域相对位置和/或内环无线帧较同步周期的时域相对位置,以及同步信息的时域位置信息,确定同步信息所属的无线帧为外环无线帧或内环无线帧;如果同步信息所属的无线帧为外环无线帧,则确定同步信息属于外环时段,如果同步信息所属的无线帧为内环无线帧,第一无线网络设备则确定同步信息属于内环时段。
可选的,当出现一个无线帧中同时包含外环时段和内环时段的情况时,需要对该无线帧内的子帧所属的时段进行进一步确定,相应的处理可以如下:如果根据外环无线帧较同步周期的时域相对位置和内环无线帧较同步周期的时域相对位置,以及同步信息的时域位置信息, 确定同步信息所属的无线帧为混合无线帧,第一无线网络设备则获取同步信息中的波束标识,其中,混合无线帧是包含部分外环时段和部分内环时段的无线帧;第一无线网络设备根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及同步信息中的波束标识,确定同步信息属于外环时段或内环时段。
在实施中,如果存在某一个无线帧同时包含部分内环时段和部分外环时段,则认为该无线帧为混合无线帧。具体的,可以预先定义同步周期为T,一个无线帧的长度为Trf,一个同步周期包含Nrf=T/Trf个无线帧,小区中的波束总数为N,无线帧的帧号为nrf。每个无线帧中可携带K个波束的同步信息,首先根据无线帧的帧号,判断该无线帧为外环无线帧,内环无线帧还是混合无线帧,如果nrf大于或等于k·Nrf且小于
Figure PCTCN2017072260-appb-000001
则为外环无线帧,如果nrf等于
Figure PCTCN2017072260-appb-000002
则为混合无线帧,此处,“
Figure PCTCN2017072260-appb-000003
”为向下取整符号,k为自然数(本实施例中,帧号包括0,相应的k也包括0)。例如,波束总数为10,一个同步周期有40个无线帧,设定每个无线帧携带4个波束的同步信息,则外环时段较同步周期的时域相对位置和内环时段较同步周期的时域相对位置为:前2个无线帧为外环无线帧,后37个无线帧属于内环无线帧,第3个无线帧为混合无线帧,如图5所示。第一无线网络设备在确定同步周期时长和波束总数后,可以先确定是否存在混合无线帧。之后,第一无线网络设备可以在获取到同步信息所属的无线帧的帧号后,根据外环无线帧和内环无线帧在同步周期中对应的无线帧的帧号,判断该同步信息所属的无线帧的帧号为外环时段的无线帧的帧号还是内环时段的无线帧的帧号,亦或是混合无线帧的帧号。如果第一无线网络设备确定接收到的同步信息所属的无线帧的帧号为混合无线帧的帧号,则可以确定该同步信息所属的无线帧为混合无线帧,进而第一无线网络设备可以获取同步信息中的波束标识。
第二无线网络设备可以预先设定混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,即设定在该混合无线帧中发送的同步信息中的波束标识与内外环时段的对应关系。在一种可选的方案中,内环时段发送的同步信息对应的子帧是固定的。例如,波束标识为8、9的同步信息对应外环时段,波束标识为0、1的同步信息对应内环时段。这样,第一无线网络设备可以根据同步信息中的波束标识,从而在上述对应关系中确定该同步信息属于外环时段或内环时段。
可选的,可以根据同步信息所属的子帧的子帧号确定同步信息所属的时段,相应的处理可以如下:如果根据外环无线帧较同步周期的时域相对位置和内环无线帧较同步周期的时域相对位置,以及同步信息的时域位置信息,确定同步信息所属的无线帧为混合无线帧,第一无线网络设备则获取同步信息所属子帧的子帧号;第一无线网络设备根据预先设置的在混合无线帧中外环时段对应的子帧号和内环时段对应的子帧号,以及同步信息所属子帧的子帧号,确定同步信息属于外环时段或内环时段。
在实施中,第一无线网络设备可以在获取到同步信息所属的无线帧的帧号后,根据外环无线帧和内环无线帧在同步周期中对应的无线帧的帧号,判断该同步信息所属的无线帧的帧号为外环时段的无线帧的帧号还是内环时段的无线帧的帧号,亦或是混合无线帧的帧号。如果第一无线网络设备确定接收到的同步信息所属的无线帧的帧号为混合无线帧的帧号,则可以确定该同步信息所属的无线帧为混合无线帧。
第二无线网络设备可以预先设定混合无线帧中外环时段对应的子帧号和内环时段对应的子帧号,即设定在该混合无线帧中发送的同步信息中的子帧号与内外环时段的对应关系。在 一种可选的方案中,内环时段发送的同步信息对应的子帧是固定的。例如,子帧号为0、1的同步信息对应外环时段,子帧号为2、3的同步信息对应内环时段。这样,第一无线网络设备可以根据同步信息所属子帧的子帧号,在上述对应关系中确定该同步信息属于外环时段或内环时段。
可选的,第一无线网络设备可以通过多种方式获取子帧号,如下给出了两种可行的方式:
方式一,在同步信息对应的PBCH广播信息中获取同步信息所属子帧的子帧号。
在实施中,第二无线网络设备可以在每个同步信息对应的PBCH广播信息信道中发送对应该同步信息的PBCH广播信息信息。第一无线网络设备接收到一个同步信息后,可以从该同步信息对应的PBCH广播信息中获取同步信息所属子帧的子帧号。例如,可以在主信息块(Master Information Block)中增加子帧号(subframe number)标识,用于指示子帧号,如子帧0~4为外环时段的同步信息,5~9为内环时段的同步信息。
方式二,根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及同步信息中的波束标识,确定同步信息所属子帧的子帧号。
在实施中,第二无线网络设备可以预先设置有混合无线帧中内外环时段和同步信息中的波束标识的对应关系,这样,当第一无线网络设备获取到同步信息中的波束标识后,可以在上述对应关系中确定同步信息所属子帧的子帧号。例如:外环无线帧中,波束0和波束4所在子帧为0号子帧,波束1和波束5所在子帧为3号子帧,波束2和波束6所在子帧为5号子帧,波束3和波束7所在子帧为8号子帧;混合无线帧中,外环波束8所在子帧为0号子帧,外环波束9所在子帧为3号子帧,内环波束0所在子帧为5号子帧,内环波束1所在子帧为8号子帧;内环无线帧中,波束2和波束6所在子帧为0号子帧,波束3和波束7所在子帧为3号子帧,波束4和波束8所在子帧为5号子帧,波束5和波束9所在子帧为8号子帧。
步骤103中,如果第一无线网络设备确定接收到的同步信息属于外环时段,第一无线网络设备则可以在当前同步周期中配置的上行资源中向第二无线网络设备发送反馈信息,该反馈信息与上述同步信息对应,即该反馈信息中携带有该同步信息中携带的波束的波束标识,或者该反馈信息的时域位置信息与该同步信息的时域位置信息相对应,以使第二无线网络设备即获知该同步信息所属的波束方向上存在发送后续信息的需求。可选的,外环时段中采用专用发现子帧发送同步信息,其中,由于该专用发现子帧可以用于发送多个同步信息,将该子帧称为专用发现子帧。图6为上述专用发现子帧的一种可能的结构的示意图,其中,一个专用发现子帧可以用来发送4个同步信息,每个同步信息占用两个符号位置,进一步的,专用发现子帧中还可以包括如下信息:物理下行控制信道(Physical Downlink Control Channel,PDCCH)占用1~3个符号位置,用于向无线网络设备传输下行控制信息,如上行调度指令、下行数据传输指示和公共控制信息等,下行控制信息中包含资源分配、传输格式、功率控制、跳频类型、传输模式等控制信息;保护间隔(Guard Period,GP)占用1~3个符号位置位于下行转换为上行的时刻,用于防止下行信号对上行信号的干扰;混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)占用1~2个符号位置,用于确保信息接收方在解码失败的情况下,保存接收到的数据,并要求信息发送方重传数据,接收方将重传的数据和先前接收到的数据进行合并后再解码。可以理解的是,专用发现子帧中具体包括几个同 步信息,或是是否包括PDCCH,GP和HARQ中的一个或多个,或是,所包括的PDCCH,GP或HARQ占用几个符号位置等这些配置信息可以具体依据系统需求进行设计确定。确定后,配置信息可以提前预置在发送方和接收方,或是,由发送方将配置信息发送给接收方,具体发送方式可以参考现有中的方式,在此不予赘述。
可选的,在一种可能的实施方式中,第一无线网络设备可以为终端,第二无线网络设备可以为基站。
基于相同的构思,本申请实施例还提供了一种识别同步信息的系统,本实施例提供的系统可以实现本申请图1所示实施例的流程,具体的处理详见步骤101至步骤103的相关内容,相应的,该系统可以包括实现图1所示实施例的流程的第一无线网络设备和第二无线网络设备,此处不再做多余说明。
本实施例还提供了一种识别同步信息的方法,具体流程如图7所示,实施方式的内容可以如下:
步骤701,第二无线网络设备基于待发送的同步信息对应的小区和/或波束,并基于同步信息属于外环时段或内环时段,生成同步信息的编码序列。
在实施中,第二无线网络设备可以设计外环时段和内环时段的同步信息的编码序列不同,即对相关技术中的同步信息的编码规则进行改动,分别为外环时段和内环时段的同步信息的编码序列设置不同的编码参数,从而同一小区和/或波束的不同时段的同步信息,具有不同的编码序列。
步骤702,第二无线网络设备向第一无线网络设备发送包含编码序列的同步信息。
步骤703,第一无线网络设备接收第二无线网络设备发送的同步信息。
步骤704,第一无线网络设备获取同步信息中的编码序列。
步骤705,第一无线网络设备根据同步信息中的编码序列,确定同步信息属于外环时段或内环时段。
可选的,还可以包括步骤706,如果同步信息属于外环时段,第一无线网络设备则向第二无线网络设备发送对应同步信息的反馈信息。
在实施中,具体的,在现有3GPP长期演进(Long Term Evolution,LTE)中,同步信息是由主辅同步信息构成的。在给定的小区传输主同步信号(Primary Synchronization Signal,PSS)和辅同步信号(Secondary Synchronization Signal,SSS)的特定序列用于指明物理层小区标识。LTE中有504个不同的物理层小区标识,它们被分为168组,每组3个标识。3个PSS序列用来表示物理层小区标识组内的物理层标识
Figure PCTCN2017072260-appb-000004
168个SSS序列用来表示物理层小区标识组
Figure PCTCN2017072260-appb-000005
PSS为长度为63的频域ZC(Zadoff-Chu)序列,3个PSS序列对应每个小区标识组的3个物理层标识,ZC序列的根指数u分别为25、29、34,如表1所示。具体生成序列如公式(1)所示:
Figure PCTCN2017072260-appb-000006
表1 主同步信息的根指数
Figure PCTCN2017072260-appb-000007
SSS序列是由两个长度为31的M序列交错组成,这两个M序列SSC1和SSC2是同一个长度为31的M序列的不同循环移位产生。SSS序列是由PSS以及与PSS有关的码加扰而得到,具体如公式(2)所示:
Figure PCTCN2017072260-appb-000008
其中,0≤n≤30,m0和m1是根据物理层小区标识组
Figure PCTCN2017072260-appb-000009
生成。具体参见表2。公式推算,如公式(3)所示:
Figure PCTCN2017072260-appb-000010
两个序列
Figure PCTCN2017072260-appb-000011
Figure PCTCN2017072260-appb-000012
Figure PCTCN2017072260-appb-000013
的两个不同循环移位,按照如下公式生成:
Figure PCTCN2017072260-appb-000014
其中
Figure PCTCN2017072260-appb-000015
如下定义:
Figure PCTCN2017072260-appb-000016
初始条件为x(0)=0,x(1)=0,x(2)=0,x(3)=0,x(4)=1。
两个加扰序列c0(n)和c1(n)依据主同步信息生成,是
Figure PCTCN2017072260-appb-000017
的两个不同循环移位,按照如下公式生成:
Figure PCTCN2017072260-appb-000018
其中
Figure PCTCN2017072260-appb-000019
是物理层小区标识组内的物理层标识,并且
Figure PCTCN2017072260-appb-000020
定义如下:
Figure PCTCN2017072260-appb-000021
初始条件为:x(0)=0,x(1)=0,x(2)=0,x(3)=0,x(4)=1.
加扰序列
Figure PCTCN2017072260-appb-000022
Figure PCTCN2017072260-appb-000023
Figure PCTCN2017072260-appb-000024
进行循环移位得到,具体公式如下:
Figure PCTCN2017072260-appb-000025
Figure PCTCN2017072260-appb-000026
其中m0和m1根据表2获得,并且
Figure PCTCN2017072260-appb-000027
定义如下:
Figure PCTCN2017072260-appb-000028
初始条件为:x(0)=0,x(1)=0,x(2)=0,x(3)=0,x(4)=1。
表2 物理层小区标识组
Figure PCTCN2017072260-appb-000029
和m0,m1的映射关系
Figure PCTCN2017072260-appb-000030
本方案中,第二无线网络设备中,同一同步信息分别处于外环时段与内环时段时的编码 序列不同,这与现有编码规则有所不同,在此称为调整后的编码规则。第二无线网络设备采用调整后的编码规则对同步信息进行编码。第一无线网络设备在接收到第二无线网络设备发送的同步信息后,可以获取同步信息中的编码序列,如果同步信息中的编码序列符合外环时段的同步信息的编码序列,则可以确定该同步信息属于外环时段,进而可以向第二无线网络设备发送对应该同步信息的反馈信息。
可选的,编码序列中的主同步序列基于同步信息对应的小区以及同步信息属于外环时段或内环时段而确定;第一无线网络设备根据同步信息中的编码序列中的主同步序列,确定同步信息属于外环时段或内环时段。
在实施中,可以基于同步信息对应的小区以及同步信息属于外环时段或内环时段对编码序列中的主同步序列进行设计,对于属于不同时段的同步信息,其主同步序列的根指数不同。具体的,可以设计内外环时段中,同步信息的主同步序列的根指数不同,外环时段为0、1、2,内环时段为3、4、5,如表3所示:
表3 主同步信息的根指数
Figure PCTCN2017072260-appb-000031
同时辅同步信息在相关技术上作了如下修改:
Figure PCTCN2017072260-appb-000032
进而,当第一无线网络设备接收到采用以上设计的同步信息后,可以根据主同步序列得到对应的根指数,然后根据根指数确定该同步信息属于外环时段还是内环时段。
可选的,编码序列中的辅同步序列基于同步信息对应的小区以及同步信息属于外环时段或内环时段而确定;第一无线网络设备根据同步信息中的编码序列中的辅同步序列,确定同步信息属于外环时段或内环时段。
在实施中,可以基于同步信息对应的小区以及同步信息属于外环时段或内环时段对编码序列中的辅同步序列进行设计,对于属于不同时段的同步信息,其具体的编码规则不同。具体的,因为在高频通信系统或者大规模多入多出技术(massive Multiple-Input Multiple-Output,massive MIMO)下,子帧长度变短,一个无线帧中无需发两遍相同的同步信息。因此可以将相关技术中0号子帧和5号子帧的同步信道设计应用到外环时段和内环时段的同步信息设计上,即如下生成序列:
Figure PCTCN2017072260-appb-000033
Figure PCTCN2017072260-appb-000034
其中各序列的生成与相关技术相同。
进而,当第一无线网络设备接收到采用以上设计的同步信息后,可以根据辅同步序列确定该同步信息属于外环时段还是内环时段。
基于相同的构思,本申请实施例还提供了一种识别同步信息的系统,本实施例提供的系统可以实现本申请图7所示实施例的流程,具体的处理详见步骤701至步骤705的相关内容,相应的,该系统可以包括实现图7所示实施例的流程的第一无线网络设备和第二无线网络设备,此处不再做多余说明。
本实施例又提供了一种识别同步信息的方法,具体流程如图8所示,实施方式的内容可以如下:
步骤801,第一无线网络设备接收第二无线网络设备发送的同步信息。
步骤802,第一无线网络设备获取同步信息对应的PBCH广播信息中的指示信息,其中,指示信息用于指示同步信息属于外环时段或内环时段。
步骤803,第一无线网络设备根据指示信息确定同步信息属于外环时段或内环时段。
可选的,还可以包括步骤804,如果同步信息属于外环时段,第一无线网络设备则向第二无线网络设备发送对应同步信息的反馈信息。
在实施中,第一无线网络设备在接收到第二无线网络设备发送的同步信息后,可以获取对应的PBCH广播信息中的指示信息,然后根据指示信息确定同步信息所属的时段,如果同步信息属于外环时段,则可以向第二无线网络设备发送对应同步信息的反馈信息。
可选的,指示信息的取值可以为0或1,其中,当指示信息的取值为0或1时分别指示同步信息属于外环时段或内环时段。
在实施中,第二无线网络设备可以在主信息块(Master Information Block)中增加同步信息标识(sch-index),用于指示该同步信息属于外环时段或者内环时段,其中bit值为0代表外环时段,bit值为1代表内环时段,反之也成立。
可选的,在接收第二无线网络设备发送的同步信息之后,第一无线网络设备可以根据同步信息进行时域符号同步,相应的处理可以如下:第一无线网络设备确定同步信息的符号位置,根据同步信息的符号位置进行时域符号同步。
本公开实施例中,第一无线网络设备接收第二无线网络设备发送的同步信息,获取所述同步信息的时域位置信息;第一无线网络设备根据所述同步信息的时域位置信息,确定所述同步信息在当前的同步周期中的时域相对位置;第一无线网络设备根据预先设置的外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息在当前的同步周期中的时域相对位置,确定所述同步信息属于外环时段或内环时段;如果所述同步信息属于外环时段,第一无线网络设备则向所述第二无线网络设备发送对应所述同步信息的反馈信息。这样,无线网络设备可以根据接收到的同步信息的时域位置信息确定同步信息属于外环时段或内环时段,进而只发送对应外环时段的同步信息的反馈信息,从而可以节省无线网络设备的通信资源。
基于相同的构思,本申请实施例还提供了一种识别同步信息的系统,本实施例提供的系 统可以实现本申请图8所示实施例的流程,具体的处理详见步骤801至步骤803的相关内容,相应的,该系统可以包括实现图8所示实施例的流程的第一无线网络设备和第二无线网络设备,此处不再做多余说明。
本实施例又提供了一种进行时域符号同步的方法,可以包括:
在接收第二无线网络设备发送的同步信息之后,第一无线网络设备可以根据同步信息进行时域符号同步,相应的处理可以如下:第一无线网络设备确定同步信息的符号位置,根据同步信息的符号位置进行时域符号同步。
在实施中,当一个子帧中携带有多个同步信息的时候,第一无线网络设备接收到同步信息之后,可以获取同步信息的符号位置,即确定同步信息所对应的具体时间,从而第一无线网络设备可以确定下一个同步周期的开始时间,则可以在对应的子帧开始的时刻接收后续信息。
可选的,第一无线网络设备可以通过多种方式确定同步信息的符号位置,如下给出了两种可行的方式:
方式一,第一无线网络设备获取同步信息中的波束标识或同步信息索引(index);第一无线网络设备根据预设的波束标识或同步信息索引与符号位置的对应关系,确定同步信息的符号位置。
在实施中,第一无线网络设备可以预先获得第二无线网络设备设置的波束标识或同步信息索引和符号位置的对应关系,然后在获取到同步信息中的波束标识或或同步信息索引后,通过上述对应关系确定同步信息的符号位置。例如,总共有8个同步信息,同步信息0所在符号位置为1、2;同步信息1所在符号位置为3、4;同步信息2所在符号位置为5、6;同步信息3所在符号位置为7、8;同步信息4所在符号位置为1、2,依此类推。当获得同步信息索引为2时,该同步信息2所在的符号位置为5和6。
方式二,第一无线网络设备在同步信息对应的PBCH广播信息中获取同步信息的符号位置。
在实施中,第一无线网络设备接收到一个同步信息后,可以从该同步信息对应的PBCH广播信息中获取同步信息的符号位置,其中,同步信息对应的PBCH广播信息与该同步信息在同一个波束所对应时域和/或频域范围内。例如,在一个子帧中总共存在两个同步信息,则PBCH广播信息中可以用1bit进行指示,具体该同步信息对应的符号位置。若在一个子帧中存在四个同步信息,则PBCH广播信息中可以用2bit单位的指示信息,指示该同步信息对应的符号位置。如可以在主信息块(Master Information Block)中增加符号标识(symbol index),用于指示符号位置。
上述时域符号同步的方法可以在第一无线网络设备识别同步信息后进行。具体的第一无线网络设备识别同步信息的方法可以参考前述实施例中的描述,在此不予赘述。
本实施例还提供了一种进行时域符号同步的无线网络设备,该无线网络设备可以包括多个功能模块,用于实现上述方法,该无线网络设备可以为上述的第一无线网络设备,或者,第二无线网络设备,在此不予赘述。本实施例还提供了一种进行时域符号同步的系统,包括实现上述方法的第一无线网络设备和第二无线网络设备。
基于相同的构思,本申请实施例还提供了一种第一无线网络设备,如图9所示,本实施例提供的第一无线网络设备可以实现本申请图1所示实施例的流程,该第一无线网络设备包括接收器901和处理器902,其中:
所述接收器901,用于接收第二无线网络设备发送的同步信息;
所述处理器902,用于在所述同步信息对应的同步配置信息中,获取所述同步信息的时域位置信息;
所述处理器902,用于根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息属于外环时段或内环时段。
可选的,该第一无线网络设备还可以包括发射器903,所述处理器902,还可以用于所述同步信息属于外环时段时,通过发射器903向所述第二无线网络设备发送对应所述同步信息的反馈信息。
可选的,所述同步信息的时域位置信息为所述同步信息的所属的无线帧的帧号。
可选的,所述外环时段中包括专用发现子帧,所述专用发现子帧专用于发送不同小区和/或波束的同步信息。
可选的,所述处理器902,用于:
在所述同步信息对应的RRC信令中,获取所述同步信息的时域位置信息;或者,
在所述同步信息对应的PBCH广播信息中,获取所述同步信息的时域位置信息。
可选的,所述处理器902,还用于:
根据所述同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
可选的,所述处理器902,用于:
根据预先设置的同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置;或者,
根据RRC信令中携带的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置;或者,
根据PBCH广播信息中携带的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
可选的,所述处理器902,用于:
根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为外环无线帧或内环无线帧;
如果所述同步信息所属的无线帧为外环无线帧,则确定所述同步信息属于外环时段,如果所述同步信息所属的无线帧为内环无线帧,则确定所述同步信息属于内环时段。
可选的,所述处理器902,还用于:
如果根据外环无线帧较同步周期的时域相对位置和内环无线帧较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为混合无线帧,则获取所述同步信息中的波束标识,其中,所述混合无线帧是包含部分外环时段和部分内环时段的无线帧;
根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及所述同步信息中的波束标识,确定所述同步信息属于外环时段或内环时段。
可选的,所述处理器902,还用于:
如果根据外环无线帧较同步周期的时域相对位置和内环无线帧较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为混合无线帧,则获取所述同步信息所属子帧的子帧号;
根据预先设置的在混合无线帧中外环时段对应的子帧号和内环时段对应的子帧号,以及所述同步信息所属子帧的子帧号,确定所述同步信息属于外环时段或内环时段。
可选的,所述处理器902,用于:
在所述同步信息对应的PBCH广播信息中获取所述同步信息所属子帧的子帧号;或者,
根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及所述同步信息中的波束标识,确定所述同步信息所属子帧的子帧号。
可选的,所述处理器902,还用于:
确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
可选的,所述处理器902,用于:
获取所述同步信息中的波束标识或同步信息索引;
根据预设的波束标识或同步信息索引与符号位置的对应关系,确定所述同步信息的符号位置。
可选的,所述处理器902,用于:
在所述同步信息对应的PBCH广播信息中获取所述同步信息的符号位置。
本公开实施例中,第一无线网络设备接收第二无线网络设备发送的同步信息,获取所述同步信息的时域位置信息;第一无线网络设备根据所述同步信息的时域位置信息,确定所述同步信息在当前的同步周期中的时域相对位置;第一无线网络设备根据预先设置的外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息在当前的同步周期中的时域相对位置,确定所述同步信息属于外环时段或内环时段。这样,无线网络设备可以根据接收到的同步信息的时域位置信息确定同步信息属于外环时段或内环时段,进而只发送对应外环时段的同步信息的反馈信息,从而可以节省无线网络设备的通信资源。
基于相同的构思,本申请实施例还提供了一种第一无线网络设备,如图10所示,本实施例提供的第一无线网络设备可以实现本申请图7所示实施例的流程,该第一无线网络设备包括接收器1001和处理器1002,其中:
所述接收器1001,用于接收第二无线网络设备发送的同步信息;
所述处理器1002,用于获取所述同步信息中的编码序列,其中,所述编码序列基于所述同步信息对应的小区和/或波束以及所述同步信息属于外环时段或内环时段而确定;
所述处理器1002,用于根据所述同步信息中的编码序列,确定所述同步信息属于外环时段或内环时段。
可选的,该第一无线网络设备还包括发射器1003,所述处理器1002,还可以用于在所述同步信息属于外环时段时,通过所述发射器1003向所述第二无线网络设备发送对应所述同步 信息的反馈信息。
可选的,所述编码序列中的主同步序列基于所述同步信息对应的小区以及所述同步信息属于外环时段或内环时段而确定;
所述处理器1002,用于:
根据所述同步信息中的编码序列中的主同步序列,确定所述同步信息属于外环时段或内环时段。
可选的,所述编码序列中的辅同步序列基于所述同步信息对应的小区以及所述同步信息属于外环时段或内环时段而确定;
所述处理器1002,用于:
根据所述同步信息中的编码序列中的辅同步序列,确定所述同步信息属于外环时段或内环时段。
可选的,所述处理器1002,还用于:
确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
可选的,所述处理器1002,用于:
获取所述同步信息中的波束标识;
根据预设的波束标识与符号位置的对应关系,确定所述同步信息的符号位置。
可选的,所述处理器1002,用于:
在所述同步信息对应的PBCH广播信息中获取所述同步信息的符号位置。
本公开实施例中,第一无线网络设备接收第二无线网络设备发送的同步信息,获取所述同步信息的时域位置信息;第一无线网络设备根据所述同步信息的时域位置信息,确定所述同步信息在当前的同步周期中的时域相对位置;第一无线网络设备根据预先设置的外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息在当前的同步周期中的时域相对位置,确定所述同步信息属于外环时段或内环时段。这样,无线网络设备可以根据接收到的同步信息的时域位置信息确定同步信息属于外环时段或内环时段,进而只发送对应外环时段的同步信息的反馈信息,从而可以节省无线网络设备的通信资源。
基于相同的构思,本申请实施例还提供了一种第二无线网络设备,如图11所示,本实施例提供的无线网络设备可以实现本申请图7所示实施例的流程,该无线网络设备包括处理器1101和发射器1102,其中:
所述处理器1101,用于基于待发送的同步信息对应的小区和/或波束,并基于所述同步信息属于外环时段或内环时段,生成所述同步信息的编码序列;
所述发射器1102,用于向第一无线网络设备发送包含所述编码序列的所述同步信息;所述包含编码序列的同步信息用于根据所述编码序列,确定所述同步信息属于外环时段或内环时段。可选的,处理器1101还用于在所述同步信息属于外环时段时,通过发射器1102反馈对应所述同步信息的反馈信息。
本公开实施例中,第一无线网络设备接收第二无线网络设备发送的同步信息,获取所述同步信息的时域位置信息;第一无线网络设备根据所述同步信息的时域位置信息,确定所述同步信息在当前的同步周期中的时域相对位置;第一无线网络设备根据预先设置的外环时段 较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息在当前的同步周期中的时域相对位置,确定所述同步信息属于外环时段或内环时段。这样,无线网络设备可以根据接收到的同步信息的时域位置信息确定同步信息属于外环时段或内环时段,进而只发送对应外环时段的同步信息的反馈信息,从而可以节省无线网络设备的通信资源。
基于相同的构思,本申请实施例还提供了一种无线网络设备,如图12所示,本实施例提供的无线网络设备可以实现本申请图8所示实施例第一无线网络设备侧的流程,该无线网络设备包括接收器1201和处理器1202,其中:
所述接收器1201,用于接收第二无线网络设备发送的同步信息;
所述处理器1202,用于获取所述同步信息对应的PBCH广播信息中的指示信息,其中,所述指示信息用于指示所述同步信息属于外环时段或内环时段;
所述处理器1202,用于根据所述指示信息确定所述同步信息属于外环时段或内环时段。
该无线网络设备还包括发射器1203,所述处理器1202,还可以用于在所述同步信息属于外环时段时,通过发射器1203向所述第二无线网络设备发送对应所述同步信息的反馈信息。
可选的,所述指示信息的取值为0或1,其中,所述指示信息的取值为0或1时分别指示所述同步信息属于外环时段或内环时段。
可选的,在所述处理器1202,还用于:
确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
可选的,所述处理器1202,用于:
获取所述同步信息中的波束标识;
根据预设的波束标识与符号位置的对应关系,确定所述同步信息的符号位置。
可选的,所述处理器1202,用于:
在所述同步信息对应的PBCH广播信息中获取所述同步信息的符号位置。
本公开实施例中,第一无线网络设备接收第二无线网络设备发送的同步信息,获取所述同步信息的时域位置信息;第一无线网络设备根据所述同步信息的时域位置信息,确定所述同步信息在当前的同步周期中的时域相对位置;第一无线网络设备根据预先设置的外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息在当前的同步周期中的时域相对位置,确定所述同步信息属于外环时段或内环时段。这样,无线网络设备可以根据接收到的同步信息的时域位置信息确定同步信息属于外环时段或内环时段,进而只发送对应外环时段的同步信息的反馈信息,从而可以节省无线网络设备的通信资源。
相应的,本实施例还提供一种无线网络设备,本实施例提供的无线网络设备可以实现本申请图8所示实施例中第二无线网络设备侧的流程,该无线网络设备包括发射器和处理器,其中,处理器用于生成同步信息,并在和该同步信息对应的广播信息中携带指示该同步信息属于外环时段或内环时段的信息,并通过所述发射器发送所述同步信息和广播信息。该无线网络设备还可以包括接收器。接收器、发射器和处理器配合,共同实现前述第二无线网络设备侧的功能,具体可参考前述方法流程及第二无线网络侧的描述,在此不予赘述。
基于相同的构思,本申请实施例还提供了一种识别同步信息的装置,如图13所示,本实施例提供的无线网络设备可以实现本申请图1所示实施例的流程,该识别同步信息的装置包括接收模块1301、第一获取模块1302和第一确定模块1303,其中:
接收模块1301,具体功能可以由接收器实现,用于接收第二无线网络设备发送的同步信息;
第一获取模块1302,具体功能可以由处理器实现,用于在所述同步信息对应的同步配置信息中,获取所述同步信息的时域位置信息;
第一确定模块1303,具体功能可以由处理器实现,用于根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息属于外环时段或内环时段。
可选的,该识别同步信息的装置还可以包括发送模块1304,所述发送模块1304,具体功能可以由发射器实现,用于如果所述同步信息属于外环时段,则向所述第二无线网络设备发送对应所述同步信息的反馈信息。
可选的,所述同步信息的时域位置信息为所述同步信息的所属的无线帧的帧号。
可选的,所述外环时段中包括专用发现子帧,所述专用发现子帧专用于发送不同小区和/或波束的同步信息。
可选的,所述获取模块1302,用于:
在所述同步信息对应的RRC信令中,获取所述同步信息的时域位置信息;或者,
在所述同步信息对应的PBCH广播信息中,获取所述同步信息的时域位置信息。
可选的,所述装置还包括:
第二确定模块1305,具体功能可以由处理器实现,用于根据所述同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
可选的,所述第二确定模块1305,用于:
根据预先设置的同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置;或者,
根据RRC信令中携带的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置;或者,
根据PBCH广播信息中携带的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
可选的,所述第一确定模块1303,用于:
根据外环无线帧较同步周期的时域相对位置和/或内环无线帧较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为外环无线帧或内环无线帧;
如果所述同步信息所属的无线帧为外环无线帧,则确定所述同步信息属于外环时段,如果所述同步信息所属的无线帧为内环无线帧,则确定所述同步信息属于内环时段。
可选的,所述装置还包括:
第二获取模块1306,具体功能可以由处理器实现,用于如果根据外环无线帧较同步周期的时域相对位置和内环无线帧较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为混合无线帧,则获取所述同步信息中的波束标识,其 中,所述混合无线帧是包含部分外环时段和部分内环时段的无线帧;
第三确定模块1307,具体功能可以由处理器实现,用于根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及所述同步信息中的波束标识,确定所述同步信息属于外环时段或内环时段。
可选的,所述装置还包括:
第三获取模块1308,具体功能可以由处理器实现,用于如果根据外环无线帧较同步周期的时域相对位置和内环无线帧较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为混合无线帧,则获取所述同步信息所属子帧的子帧号;
第四确定模块1309,具体功能可以由处理器实现,用于根据预先设置的在混合无线帧中外环时段对应的子帧号和内环时段对应的子帧号,以及所述同步信息所属子帧的子帧号,确定所述同步信息属于外环时段或内环时段。
可选的,所述第三获取模块1308,用于:
在所述同步信息对应的PBCH广播信息中获取所述同步信息所属子帧的子帧号;或者,
根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及所述同步信息中的波束标识,确定所述同步信息所属子帧的子帧号。
可选的,所述装置还包括:
第五确定模块1309,具体功能可以由处理器实现,用于确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
可选的,所述第五确定模块1309,用于:
获取所述同步信息中的波束标识;
根据预设的波束标识与符号位置的对应关系,确定所述同步信息的符号位置。
可选的,所述第五确定模块1309,用于:
在所述同步信息对应的PBCH广播信息中获取所述同步信息的符号位置。
本公开实施例中,第一无线网络设备接收第二无线网络设备发送的同步信息,获取所述同步信息的时域位置信息;第一无线网络设备根据所述同步信息的时域位置信息,确定所述同步信息在当前的同步周期中的时域相对位置;第一无线网络设备根据预先设置的外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息在当前的同步周期中的时域相对位置,确定所述同步信息属于外环时段或内环时段;如果所述同步信息属于外环时段,第一无线网络设备则向所述第二无线网络设备发送对应所述同步信息的反馈信息。这样,无线网络设备可以根据接收到的同步信息的时域位置信息确定同步信息属于外环时段或内环时段,进而只发送对应外环时段的同步信息的反馈信息,从而可以节省无线网络设备的通信资源。
基于相同的构思,本申请实施例还提供了一种识别同步信息的装置,如图14所示,本实施例提供的无线网络设备设备可以实现本申请图7所示实施例的流程,该识别同步信息的装置包括接收模块1801、获取模块1802和第一确定模块1803,其中:
接收模块1801,具体功能可以由接收器实现,用于接收第二无线网络设备发送的同步信息;
获取模块1802,具体功能可以由处理器实现,用于获取所述同步信息中的编码序列,其 中,所述编码序列基于所述同步信息对应的小区和/或波束以及所述同步信息属于外环时段或内环时段而确定;
第一确定模块1803,具体功能可以由处理器实现,用于根据所述同步信息中的编码序列,确定所述同步信息属于外环时段或内环时段。
可选的,该识别同步信息的装置还包括发送模块1804,所述发送模块1804,具体功能可以由发射器实现,用于如果所述同步信息属于外环时段,则向所述第二无线网络设备发送对应所述同步信息的反馈信息。
可选的,所述编码序列中的主同步序列基于所述同步信息对应的小区以及所述同步信息属于外环时段或内环时段而确定;
所述第一确定模块1803,用于:
根据所述同步信息中的编码序列中的主同步序列,确定所述同步信息属于外环时段或内环时段。
可选的,所述编码序列中的辅同步序列基于所述同步信息对应的小区以及所述同步信息属于外环时段或内环时段而确定;
所述第一确定模块1803,用于:
根据所述同步信息中的编码序列中的辅同步序列,确定所述同步信息属于外环时段或内环时段。
可选的,所述装置还包括:
第二确定模块1804,具体功能可以由处理器实现,用于确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
可选的,所述第二确定模块1804,用于:
获取所述同步信息中的波束标识;
根据预设的波束标识与符号位置的对应关系,确定所述同步信息的符号位置。
可选的,所述第二确定模块1804,用于:
在所述同步信息对应的PBCH广播信息中获取所述同步信息的符号位置。
本公开实施例中,第一无线网络设备接收第二无线网络设备发送的同步信息,获取所述同步信息的时域位置信息;第一无线网络设备根据所述同步信息的时域位置信息,确定所述同步信息在当前的同步周期中的时域相对位置;第一无线网络设备根据预先设置的外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息在当前的同步周期中的时域相对位置,确定所述同步信息属于外环时段或内环时段;如果所述同步信息属于外环时段,第一无线网络设备则向所述第二无线网络设备发送对应所述同步信息的反馈信息。这样,无线网络设备可以根据接收到的同步信息的时域位置信息确定同步信息属于外环时段或内环时段,进而只发送对应外环时段的同步信息的反馈信息,从而可以节省无线网络设备的通信资源。
基于相同的构思,本申请实施例还提供了一种识别同步信息的装置,如图15所示,本实施例提供的无线网络设备可以实现本申请图7所示实施例的流程,该识别同步信息的装置包括编码模块2001和发送模块2002,其中:
编码模块2001,具体功能可以由处理器实现,用于第二无线网络设备基于待发送的同步 信息对应的小区和/或波束,并基于所述同步信息属于外环时段或内环时段,生成所述同步信息的编码序列;
发送模块2002,具体功能可以由发射器实现,用于第二无线网络设备向第一无线网络设备发送包含所述编码序列的所述同步信息;所述包含编码序列的同步信息用于根据所述编码序列,确定所述同步信息属于外环时段或内环时段。可选的,所述发送模块2002,还用于如果所述同步信息属于外环时段,则反馈对应所述同步信息的反馈信息。
本公开实施例中,第一无线网络设备接收第二无线网络设备发送的同步信息,获取所述同步信息的时域位置信息;第一无线网络设备根据所述同步信息的时域位置信息,确定所述同步信息在当前的同步周期中的时域相对位置;第一无线网络设备根据预先设置的外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息在当前的同步周期中的时域相对位置,确定所述同步信息属于外环时段或内环时段;如果所述同步信息属于外环时段,第一无线网络设备则向所述第二无线网络设备发送对应所述同步信息的反馈信息。这样,无线网络设备可以根据接收到的同步信息的时域位置信息确定同步信息属于外环时段或内环时段,进而只发送对应外环时段的同步信息的反馈信息,从而可以节省无线网络设备的通信资源。
基于相同的构思,本申请实施例还提供了一种识别同步信息的装置,如图16所示,本实施例提供的无线网络设备可以实现本申请图8所示实施例第一无线网络设备侧的流程,该识别同步信息的装置包括接收模块2101、获取模块2102和第一确定模块2103,其中:
接收模块2101,具体功能可以由接收器实现,用于接收第二无线网络设备发送的同步信息;
获取模块2102,具体功能可以由处理器实现,用于获取所述同步信息对应的PBCH广播信息中的指示信息,其中,所述指示信息用于指示所述同步信息属于外环时段或内环时段;
第一确定模块2103,具体功能可以由处理器实现,用于根据所述指示信息确定所述同步信息属于外环时段或内环时段。
可选的,该识别同步信息的装置还包括发送模块2104,所述发送模块2104,具体功能可以由发射器实现,用于如果所述同步信息属于外环时段,则向所述第二无线网络设备发送对应所述同步信息的反馈信息。
可选的,所述指示信息的取值为0或1,其中,所述指示信息的取值为0或1时分别指示所述同步信息属于外环时段或内环时段。
可选的,在所述装置还包括:
第二确定模块2105,具体功能可以由处理器实现,用于确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
可选的,所述第二确定模块2105,用于:
获取所述同步信息中的波束标识;
根据预设的波束标识与符号位置的对应关系,确定所述同步信息的符号位置。
可选的,所述第二确定模块2105,用于:
第一无线网络设备在所述同步信息对应的PBCH广播信息中获取所述同步信息的符号位置。
本公开实施例中,第一无线网络设备接收第二无线网络设备发送的同步信息,获取所述同步信息的时域位置信息;第一无线网络设备根据所述同步信息的时域位置信息,确定所述同步信息在当前的同步周期中的时域相对位置;第一无线网络设备根据预先设置的外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息在当前的同步周期中的时域相对位置,确定所述同步信息属于外环时段或内环时段;如果所述同步信息属于外环时段,第一无线网络设备则向所述第二无线网络设备发送对应所述同步信息的反馈信息。这样,无线网络设备可以根据接收到的同步信息的时域位置信息确定同步信息属于外环时段或内环时段,进而只发送对应外环时段的同步信息的反馈信息,从而可以节省无线网络设备的通信资源。
需要说明的是:上述实施例提供的识别同步信息的装置在识别同步信息时,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将无线网络设备的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。另外,上述实施例提供的识别同步信息的装置与识别同步信息的方法实施例属于同一构思,其具体实现过程详见方法实施例,这里不再赘述。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本申请的一种实施例,并不用以限制本申请,凡在本申请的原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (20)

  1. 一种识别同步信息的方法,其特征在于,所述方法包括:
    第一无线网络设备从第二无线网络设备接收同步信息,在所述同步信息对应的同步配置信息中,获取所述同步信息的时域位置信息;
    第一无线网络设备根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息属于外环时段或内环时段。
  2. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    第一无线网络设备根据所述同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
  3. 根据权利要求2所述的方法,其特征在于,所述第一无线网络设备根据所述同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,包括:
    第一无线网络设备根据预先设置的同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置;或者,
    第一无线网络设备根据无线资源控制信令中包括的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置;或者,
    第一无线网络设备根据广播信息中包括的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
  4. 根据权利要求1-3中任意一项所述的方法,其特征在于,所述第一无线网络设备根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息属于外环时段或内环时段,包括:
    如果根据外环时段较同步周期的时域相对位置和内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为混合无线帧,第一无线网络设备则获取所述同步信息中的波束标识,其中,所述混合无线帧是包含部分外环时段和部分内环时段的无线帧;
    第一无线网络设备根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及所述同步信息中的波束标识,确定所述同步信息属于外环时段或内环时段。
  5. 根据权利要求1-4中任意一项所述的方法,其特征在于,在所述第一无线网络设备接收第二无线网络设备发送的同步信息之后,所述方法还包括:
    第一无线网络设备确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
  6. 根据权利要求5所述的方法,其特征在于,所述确定所述同步信息的符号位置,包括:
    第一无线网络设备获取所述同步信息中的波束标识;
    第一无线网络设备根据预设的波束标识与符号位置的对应关系,确定所述同步信息的符号位置。
  7. 一种识别同步信息的方法,其特征在于,所述方法包括:
    第一无线网络设备从第二无线网络设备接收同步信息;
    第一无线网络设备获取所述同步信息对应的广播信息中的指示信息,其中,所述指示信息用于指示所述同步信息属于外环时段或内环时段;
    第一无线网络设备根据所述指示信息确定所述同步信息属于外环时段或内环时段。
  8. 一种无线网络设备,其特征在于,所述无线网络设备包括接收器、处理器、发射器,其中:
    所述接收器,用于从第二无线网络设备接收同步信息;
    所述处理器,用于在所述同步信息对应的同步配置信息中,获取所述同步信息的时域位置信息;
    所述处理器,用于根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息属于外环时段或内环时段。
  9. 根据权利要求8所述的无线网络设备,其特征在于,所述处理器,还用于:
    根据所述同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
  10. 根据权利要求9所述的无线网络设备,其特征在于,所述处理器,用于:
    根据预先设置的同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置;或者,
    根据无线资源控制信令中携带的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置;或者,
    根据广播信息中携带的同步周期时长和波束总数的指示信息确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
  11. 根据权利要求8-10中任意一项所述的无线网络设备,其特征在于,所述处理器,还用于:
    如果根据外环时段较同步周期的时域相对位置和内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为混合无线帧,则获取所述同步信息中的波束标识,其中,所述混合无线帧是包含部分外环时段和部分内环时段的无线帧;
    根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及所述同步信息中的波束标识,确定所述同步信息属于外环时段或内环时段。
  12. 根据权利要求8-11中任意一项所述的无线网络设备,其特征在于,所述处理器,还用于:
    确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
  13. 根据权利要求12所述的无线网络设备,其特征在于,所述处理器,用于:
    获取所述同步信息中的波束标识;
    根据预设的波束标识与符号位置的对应关系,确定所述同步信息的符号位置。
  14. 一种无线网络设备,其特征在于,所述无线网络设备包括接收器、处理器、发射器:
    所述接收器,用于从第二无线网络设备接收同步信息;
    所述处理器,用于获取所述同步信息对应的广播信息中的指示信息,其中,所述指示信息用于指示所述同步信息属于外环时段或内环时段;
    所述处理器,用于根据所述指示信息确定所述同步信息属于外环时段或内环时段。
  15. 一种识别同步信息的装置,其特征在于,所述装置包括:
    接收模块,用于从第二无线网络设备接收同步信息;
    第一获取模块,用于在所述同步信息对应的同步配置信息中,获取所述同步信息的时域位置信息;
    第一确定模块,用于根据外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息属于外环时段或内环时段。
  16. 根据权利要求15所述的装置,其特征在于,所述装置还包括:
    第二确定模块,用于第一无线网络设备根据所述同步周期时长和波束总数确定外环时段较同步周期的时域相对位置和/或内环时段较同步周期的时域相对位置。
  17. 根据权利要求15-16中任意一项所述的装置,其特征在于,所述装置还包括:
    第二获取模块,用于如果根据外环无线帧较同步周期的时域相对位置和内环无线帧较同步周期的时域相对位置,以及所述同步信息的时域位置信息,确定所述同步信息所属的无线帧为混合无线帧,则获取所述同步信息中的波束标识,其中,所述混合无线帧是包含部分外环时段和部分内环时段的无线帧;
    第三确定模块,用于根据预先设置的在混合无线帧中外环时段对应的波束标识和内环时段对应的波束标识,以及所述同步信息中的波束标识,确定所述同步信息属于外环时段或内环时段。
  18. 根据权利要求15-17中任意一项所述的装置,其特征在于,所述装置还包括:
    第五确定模块,用于确定所述同步信息的符号位置,根据所述同步信息的符号位置进行时域符号同步。
  19. 根据权利要求18所述的装置,其特征在于,所述第五确定模块,用于:
    获取所述同步信息中的波束标识;
    根据预设的波束标识与符号位置的对应关系,确定所述同步信息的符号位置。
  20. 一种识别同步信息的装置,其特征在于,所述装置包括:
    接收模块,用于接收第二无线网络设备发送的同步信息;
    获取模块,用于获取所述同步信息对应的广播信息中的指示信息,其中,所述指示信息用于指示所述同步信息属于外环时段或内环时段;
    第一确定模块,用于根据所述指示信息确定所述同步信息属于外环时段或内环时段;
    发送模块,用于如果所述同步信息属于外环时段,则向所述第二无线网络设备发送对应所述同步信息的反馈信息。
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EP3399811B1 (en) 2023-07-12
CN111818631B (zh) 2021-12-03
CN106998569A (zh) 2017-08-01
CN106998569B (zh) 2020-06-16
US11006379B2 (en) 2021-05-11
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