WO2023011413A1 - 同步光栅的设计方法和装置 - Google Patents
同步光栅的设计方法和装置 Download PDFInfo
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- 238000004891 communication Methods 0.000 claims description 57
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present application relates to the communication field, and more specifically, to a method and device for designing a synchronous grating.
- New wireless access technology divides frequency bands into two parts: FR1 (Frequency Range 1) and FR2 (Frequency Range 2).
- FR1 mainly refers to 450MHz ⁇ 6GHz bandwidth
- FR2 mainly refers to 24.25GHz ⁇ 52.6GHz bandwidth.
- the frequency band from 52.6GHz to 71GHz (abbreviated as above 52.6GHz) is also included in the scope of use of the 5th generation mobile communication system (beyond 5.5G system). For this part of spectrum, there are both non-shared spectrum and shared spectrum.
- the cell search is the first step for the terminal device to obtain the service of the base station.
- the terminal device can search and find a suitable cell through the cell search, and access the cell.
- the cell search process includes frequency point scanning, cell detection, and broadcast information acquisition.
- the terminal device mainly obtains the relevant cell broadcast information by searching the synchronization information block pattern (SS/PBCH Block/SSB, Synchronization Signal Block Pattern).
- the frequency domain position information of the terminal device scanning the SSB can be defined by a synch raster, which represents a series of frequency points that can be used to transmit the SSB.
- a synch raster represents a series of frequency points that can be used to transmit the SSB.
- Cells need to be established during base station deployment, and each cell needs to have a specific SSB, and the frequency domain position corresponding to each SSB is the position of the synchronization grating.
- the introduction of the concept of synchronous grating is mainly to allow terminal equipment to perform corresponding searches at specific frequency points during the cell search process, so as to avoid excessive access delay and energy loss caused by the uncertainty of blind search.
- the design of the synchronous grating cannot expand the deployment granularity of the synchronous grating without limit, and it should be ensured that at least one synchronous grating exists in the frequency domain of the cell for sending the SSB.
- This application provides a method for designing a synchronous grating. Under different subcarrier spacings, an adaptive first bandwidth is provided. Within the first bandwidth, a synchronous grating is reasonably designed to place the synchronous signal block SSB, so that the terminal Within the scope of the search capability, the device can access the target SSB by traversing as few SSBs as possible, which saves the power consumption of the terminal device and improves the efficiency of the terminal device to search for the SSB.
- a method for designing a synchronous grating includes: the network device determines the first bandwidth, and the frequency range corresponding to the first bandwidth is higher than 52.6 GHz; the network device configures a plurality of synchronous gratings in the first bandwidth according to the first rule, and each synchronous grating places a synchronous signal Block SSB, each synchronization raster corresponds to a global synchronization number.
- an adaptive first bandwidth is provided.
- the synchronous grating is reasonably designed to be used in the frequency domain position corresponding to the synchronous grating
- the synchronization signal block SSB is sent on the Internet, so that the terminal device can access the target SSB by traversing as few SSBs as possible within the scope of the search capability, which saves the power consumption of the terminal device and improves the efficiency of the terminal device to search for the SSB.
- the network device determines the first bandwidth according to the first subcarrier spacing of the SSB, where,
- the first bandwidth is 100 megahertz MHz
- the first bandwidth is 400MHz
- the first bandwidth is 400 MHz.
- the size of the first bandwidth is determined according to the working bandwidth of the terminal equipment and the size of the frequency domain occupied by the SSB.
- the size of the first bandwidth is suitable for the working bandwidth of the terminal equipment. More than one synchronous Raster, used to transmit SSB.
- the type of the synchronization grating may include a synchronization grating that shares a spectrum and a synchronization grating that does not share a spectrum, and the synchronization grating that shares a spectrum indicates that the synchronization grating is used for sending
- the synchronization raster of the non-sharing spectrum indicates the SSB sent to the terminal equipment of the non-sharing spectrum on the synchronization raster.
- the synchronization raster of the shared spectrum corresponds to the global synchronization number of the shared spectrum
- the synchronization raster of the non-shared spectrum corresponds to the global synchronization number of the non-shared spectrum.
- the terminal device determines the manner of resolving the SSB according to finding the target SSB on the synchronization raster of the shared frequency spectrum or finding the target SSB on the synchronization raster of the non-shared frequency spectrum.
- the synchronization rasters of the shared spectrum in the first bandwidth are located in the frequency domain corresponding to the synchronization gratings with the smallest global synchronization number and/or the largest global synchronization number in the first bandwidth, and the synchronization gratings of the non-shared spectrum are located at the remaining global synchronization numbers
- the synchronization gratings of the non-shared spectrum within the first bandwidth are located in the frequency domain corresponding to the synchronization gratings with the smallest global synchronization number and/or the largest global synchronization number, and the synchronization gratings of the shared spectrum are located at the corresponding synchronization gratings of the remaining global synchronization numbers frequency domain location.
- the frequency domain positions of the synchronization gratings sharing the spectrum and the synchronization gratings not sharing the spectrum in the first bandwidth are not distinguished.
- the network device sends the SSB to the terminal device on the synchronization raster, it may carry the first signaling, and the first signaling is used to indicate that the target SSB is the SSB corresponding to the non-shared spectrum or the SSB corresponding to the shared spectrum, and the terminal device according to The first signaling parses the target SSB.
- a method for designing a synchronous grating includes: the terminal device determines the frequency range corresponding to the first bandwidth; the terminal device searches for the synchronization signal block SSB at the frequency domain position of the synchronization raster corresponding to the global synchronization number within the frequency range corresponding to the first bandwidth
- an adaptive first bandwidth is provided.
- the synchronous grating is reasonably designed to be used in the frequency domain position corresponding to the synchronous grating
- the synchronization signal block SSB is sent on the Internet, so that the terminal device can access the target SSB by traversing as few SSBs as possible within the scope of the search capability, which saves the power consumption of the terminal device and improves the efficiency of the terminal device to search for the SSB.
- the size of the first bandwidth is determined by the size of the first subcarrier spacing of the SSB, where,
- the first bandwidth is 100 megahertz MHz
- the first bandwidth is 400MHz
- the first bandwidth is 400 MHz.
- the size of the first bandwidth is determined according to the working bandwidth of the terminal equipment and the size of the frequency domain occupied by the SSB.
- the size of the first bandwidth is suitable for the working bandwidth of the terminal equipment. More than one synchronous Raster, used to transmit SSB.
- the type of the synchronization grating may include a synchronization grating that shares a spectrum and a synchronization grating that does not share a spectrum, and the synchronization grating that shares a spectrum indicates that the synchronization grating is used for sending
- the synchronization raster of the non-sharing spectrum indicates the SSB sent to the terminal equipment of the non-sharing spectrum on the synchronization raster.
- the synchronization raster of the shared spectrum corresponds to the global synchronization number of the shared spectrum
- the synchronization raster of the non-shared spectrum corresponds to the global synchronization number of the non-shared spectrum.
- the terminal device determines the manner of resolving the SSB according to finding the target SSB on the synchronization raster of the shared frequency spectrum or finding the target SSB on the synchronization raster of the non-shared frequency spectrum.
- the synchronization gratings of the shared spectrum in the first bandwidth are located at the frequency domain positions corresponding to the synchronization gratings with the smallest global synchronization number and/or the largest global synchronization number, and the synchronization gratings of the non-shared spectrum are located at the corresponding synchronization gratings of the remaining global synchronization numbers
- the frequency domain location of or,
- the synchronization gratings of the non-shared spectrum within the first bandwidth are located in the frequency domain corresponding to the synchronization gratings with the smallest global synchronization number and/or the largest global synchronization number, and the synchronization gratings of the shared spectrum are located at the corresponding synchronization gratings of the remaining global synchronization numbers frequency domain location.
- the frequency domain positions of the frequency-domain sharing synchronization grating and the non-sharing frequency synchronization grating within the first bandwidth are not distinguished.
- the network device sends the SSB to the terminal device on the synchronization raster, it may carry the first signaling, and the first signaling is used to indicate that the target SSB is the SSB corresponding to the non-shared spectrum or the SSB corresponding to the shared spectrum, and the terminal device according to The first signaling parses the target SSB.
- a communication device including a processing unit configured to determine a first bandwidth, and the frequency range corresponding to the first bandwidth is higher than 52.6 GHz;
- a plurality of synchronous gratings are arranged in the first bandwidth, each synchronous grating places a synchronous signal block SSB, and each synchronous grating corresponds to a global synchronization number.
- the network device determining the first bandwidth includes: the network device determining the first bandwidth according to the first subcarrier spacing of the SSB, Wherein, when the first subcarrier spacing is 120 kHz, the first bandwidth is 100 MHz, when the first subcarrier spacing is 480 kHz, the first bandwidth is 400 MHz, when the When the first subcarrier interval is 960 kHz, the first bandwidth is 400 MHz.
- types of the synchronous grating include a synchronous grating that shares a frequency spectrum and a synchronous grating that does not share a frequency spectrum.
- the first rule is: within the first bandwidth, the synchronization grating of the shared spectrum and the synchronization grating of the non-shared spectrum are located at different frequency domain location.
- the synchronization grating of the shared spectrum and the synchronization grating of the non-shared spectrum are located at different frequency domain positions, including: Within the first bandwidth, the synchronization grating of the shared spectrum is located at the frequency domain position corresponding to the synchronization grating with the smallest global synchronization number and/or the largest global synchronization number, and the synchronization grating of the non-shared spectrum is located at the remaining synchronization gratings of the global synchronization number
- the corresponding frequency domain position, or, within the first bandwidth, the synchronization raster of the non-shared spectrum is located at the frequency domain position corresponding to the synchronization raster with the smallest global synchronization number and/or the largest global synchronization number, and the shared frequency spectrum
- the sync raster is located at the frequency domain position corresponding to the sync raster of the remaining global synchronization numbers.
- the apparatus further includes: a transceiver unit configured to send the SSB corresponding to the shared spectrum at a frequency domain position corresponding to the synchronization raster of the shared spectrum, or, Sending the SSB corresponding to the non-shared spectrum at the frequency domain position corresponding to the synchronization raster of the non-shared spectrum.
- the first rule is: within the first bandwidth, the synchronization grating of the shared spectrum and the synchronization grating of the non-shared spectrum are located on the same First frequency domain location.
- the transceiver unit is further configured to send a first signaling to the terminal device, where the first signaling is used to indicate the first frequency domain position It is used to send the SSB corresponding to the shared spectrum or the SSB corresponding to the unshared spectrum.
- the communication device is a communication chip
- the communication chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.
- the communication device is a communication device (for example, a network device, etc.), and the communication chip may include a transmitter for sending information, and a receiver for receiving information or data.
- the communication chip may include a transmitter for sending information, and a receiver for receiving information or data.
- a communication device including a processing unit configured to determine a frequency range corresponding to a first bandwidth; The frequency domain position of the synchronization raster searches for the synchronization signal block SSB.
- the first bandwidth is determined by a first subcarrier spacing of the SSB, where, when the first subcarrier spacing is 120 kHz, The first bandwidth is 100 megahertz MHz. When the first subcarrier spacing is 480kHz, the first bandwidth is 400MHz. When the first subcarrier spacing is 960kHz, the first bandwidth is 400MHz. .
- types of the synchronous gratings include shared spectrum synchronous gratings and non-shared spectrum synchronous gratings.
- the first rule is: within the first bandwidth, the synchronization grating of the shared spectrum and the synchronization grating of the non-shared spectrum are located at different frequency domain location.
- the synchronization grating of the shared spectrum and the synchronization grating of the non-shared spectrum are located at different frequency domain positions, including: Within the first bandwidth, the synchronization raster of the shared spectrum is located at the frequency domain position corresponding to the synchronization raster with the smallest global synchronization number and/or the largest global synchronization number, and the synchronization raster of the non-shared spectrum is located at the position of the remaining global synchronization numbers.
- the frequency domain position corresponding to the synchronization grating, or, within the first bandwidth, the synchronization grating of the non-shared spectrum is located at the frequency domain position corresponding to the synchronization grating with the smallest global synchronization number and/or the largest global synchronization number, and the shared The sync raster of the spectrum is located at the frequency domain position corresponding to the sync raster of the remaining gsync numbers.
- the first rule is: within the first bandwidth, the synchronization grating of the shared spectrum and the synchronization grating of the non-shared spectrum are located on the same First frequency domain location.
- the apparatus further includes: a transceiver unit, configured to receive a first signaling sent by the network device, where the first signaling is used to indicate the The SSB sent at the first frequency domain position is the SSB corresponding to the shared spectrum or the SSB corresponding to the non-shared spectrum.
- the communication device is a communication chip
- the communication chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.
- the communication device is a communication device (eg, a terminal device, etc.), and the communication chip may include a transmitter for sending information, and a receiver for receiving information or data.
- the communication chip may include a transmitter for sending information, and a receiver for receiving information or data.
- a communication device including a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the communication device performs the above-mentioned first aspect or Communication methods in the second aspect and various implementations thereof.
- processors there are one or more processors, and one or more memories.
- the memory may be integrated with the processor, or the memory may be set separately from the processor.
- the communication device further includes a transmitter (transmitter) and a receiver (receiver).
- a computer program product includes: a computer program (also referred to as code, or instruction), which, when the computer program is executed, causes the computer to perform the above-mentioned first aspect or the first aspect.
- a computer program also referred to as code, or instruction
- the second aspect and the communication methods in each implementation manner thereof.
- a computer-readable medium stores a computer program (also referred to as code, or an instruction) which, when running on a computer, causes the computer to execute the above-mentioned first aspect or the first aspect.
- a computer program also referred to as code, or an instruction
- the second aspect and the communication methods in each implementation manner thereof.
- a communication system includes: at least one device according to any one of the third aspect and the device according to any one of the fourth aspect.
- a ninth aspect provides a chip system, including a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the communication device installed with the chip system executes the above-mentioned The communication method in the first aspect or the second aspect and various implementations thereof.
- the chip system may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.
- FIG. 1 is a schematic diagram of a system architecture of an embodiment of the present application.
- Fig. 2 is an example of the method for designing synchronous grating in the embodiment of the present application
- FIG. 3 is a schematic diagram of an example of the relationship between a synchronization signal block and a synchronization grating according to an embodiment of the present application.
- Fig. 4 is a schematic diagram of an example of a synchronization grating of a non-shared spectrum and a synchronization grating of a shared spectrum within a first bandwidth according to an embodiment of the present application.
- FIG. 5 is an example of a communication device for designing a synchronous grating according to an embodiment of the present application.
- FIG. 6 is another example of a communication device for designing a synchronous grating according to an embodiment of the present application.
- the technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5th Generation (5G) System or New Radio (New Radio, NR), etc.
- GSM Global System of Mobile communication
- CDMA code division multiple access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interoperability for Microwave Access
- the terminal equipment in the embodiment of the present application may refer to user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
- the terminal equipment can also be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in the evolved public land mobile network (Public Land Mobile Network, PLMN) etc., which is not limited in this embodiment of the present application.
- SIP Session Initiation Protocol
- WLL Wireless Local Loop
- PDA Personal Digital Assistant
- the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a Global System of Mobile communication (GSM) system or a code division multiple access (Code Division Multiple Access, CDMA)
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- the base station (Base Transceiver Station, BTS) in the wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system (NodeB, NB) can also be the evolved base station (Evolutionary Base Station) in the LTE system NodeB, eNB or eNodeB), it can also be a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN) scenario, or the network device can be a relay station, an access point, a vehicle device, a wearable device, and a 5G
- CRAN Cloud Radio Access Network
- the embodiment of the present application does not limit the network equipment in the network or the network equipment in the evolved PLMN network.
- Fig. 1 is a schematic diagram of the system architecture of the embodiment of the present application.
- a base station and a plurality of terminal devices may form a communication system in the embodiment of the present application.
- each terminal device can communicate with The base station communicates, and its link environment can include uplink transmission, downlink transmission and side-link transmission (Side-link).
- the information transmitted in this link includes the data information actually transmitted, and the control used to indicate and schedule the actual data information.
- any two terminal devices can also form a communication system, and its link transmission is consistent with the above, and the specific information exchange depends on the configuration mode of the network devices.
- FIG. 2 is an example of a method of designing a synchronous grating according to an embodiment of the present application. As shown in Figure 2, the method 200 includes:
- the network device determines a first bandwidth.
- the first bandwidth is the search bandwidth required by the terminal device to perform a cell search, and the terminal device accesses a suitable cell by searching for a synchronization signal block (SSB).
- SSB synchronization signal block
- the frequency range of the first bandwidth is above 52.6 GHz, that is, 52.6 GHz-71 GHz, and the first bandwidth is a section of 52.6 GHz-71 GHz.
- the above52.6GHz frequency band is used as an example to design the synchronous grating syncraster.
- the method of the embodiment of the present application can also be used for synchronization
- the design of the grating is not limited in this embodiment of the present application.
- the network device determines the size of the first bandwidth according to the first subcarrier spacing of the SSB.
- the first subcarrier interval of the SSB is 120 kHz, and the network device determines that the first bandwidth may be 100 MHz.
- the first subcarrier interval of the SSB is 480 kHz, and the network device determines that the first bandwidth may be 400 MHz.
- the subcarrier spacing of the SSB is 960 kHz, and the network device determines that the first bandwidth may be 400 MHz.
- the size of the first bandwidth determined by the network device may be determined according to the size of the SSB corresponding to the first subcarrier interval and the bandwidth supported by the terminal device. In order to enable the terminal device to traverse fewer frequency domain positions when searching for the SSB and shorten the time required for cell search, more than one synchronization grating should also exist in the first bandwidth.
- the network device determines the global synchronization number within the frequency range corresponding to the first bandwidth.
- a global synchronization number corresponds to a synchronous raster
- a synchronous raster corresponds to an SSB
- the network device sends the SSB at the frequency domain position of the synchronous raster corresponding to the global synchronous number.
- the terminal device receives the SSB at the position of the synchronous raster. It should be noted that the terminal device searches for the target SSB within the frequency range corresponding to the first bandwidth, and receives the target SSB when the target SSB is found.
- the network device determines the frequency domain position of the synchronous grating within the frequency range of the first bandwidth according to the following formula:
- f represents the frequency corresponding to the global synchronization number
- A represents the granularity of the synchronization raster
- N+22256 represents the global synchronization number corresponding to the frequency f
- N is a positive integer greater than or equal to 0. It should be understood that one frequency corresponds to one global synchronization number.
- the network device determines the global synchronization number within the first bandwidth according to the first rule.
- the network device determines that on the synchronization raster corresponding to some global synchronization numbers within the frequency range of the first bandwidth, the SSB for the terminal device located in the shared spectrum is correspondingly sent, and the synchronization raster for sending the SSB for the terminal device located in the shared spectrum is the shared spectrum
- the synchronization raster of , and its corresponding global synchronization number is the global synchronization number of the shared spectrum.
- the frequency-sharing synchronization gratings are synchronization gratings with the smallest number and/or the highest number within the first bandwidth, and the others are synchronization gratings that do not share the frequency spectrum.
- the synchronization gratings that do not share the spectrum are the synchronization gratings with the smallest number and/or the highest number in the first bandwidth, and the others are the synchronization gratings that share the spectrum.
- the network device determines that the first bandwidth is 100 MHz.
- the global synchronization number determined according to the first formula and the first bandwidth is shown in Table 1 below, where the synchronization grating granularity is 17.28MHz.
- the synchronous gratings of the shared spectrum are the synchronous gratings with the smallest number and the largest number in the first bandwidth, and the others are the synchronous gratings of the non-shared spectrum as an example.
- the synchronous grating of the shared spectrum is the synchronous grating with the smallest number in the first bandwidth, and the others are the rasters of the non-shared spectrum as an example.
- it is only necessary to replace the global synchronous number of the shared spectrum in the table with the non-shared spectrum The GSN of the non-shared spectrum is replaced by the GSN of the shared spectrum.
- the synchronous grating of the shared spectrum is the synchronous grating with the largest number in the first bandwidth, and the others are the rasters of the non-shared spectrum as an example.
- the GSN of the non-shared spectrum is replaced by the GSN of the shared spectrum.
- the utilization rate of the first bandwidth cannot reach 100%, for example, the utilization rate of the bandwidth can only reach 95.04%.
- the synchronization raster corresponding to each global synchronization number can place a complete SSB. This application takes this as an example, but is not limited thereto.
- the bandwidth occupied by the corresponding SSB in the frequency domain is 28.8MHz (that is, 120kHz*12*20), and 12 means that one resource block (RB, Resource Block) contains 12 subcarriers.
- Carrier, 20 indicates that one SSB occupies 20 RBs.
- the synchronous grating is located in the middle of the SSB. Therefore, the SSB occupies 14.4MHz above and below the synchronous grating, as shown in Figure 3. It should be noted that, corresponding to the above formula, the frequency in the formula corresponding to the synchronous grating corresponds to the center frequency of the SSB placed on the synchronous grating.
- the frequency range corresponding to the first bandwidth is 63.9GHz-64.0GHz.
- the synchronization gratings with the largest and smallest global synchronization numbers in the first bandwidth are global synchronization numbers of shared spectrum, and others are non-shared spectrum
- the Global Synchronization Number shown in Figure 4, is an example of this design approach.
- the SSB corresponding to the terminal equipment sharing the spectrum is sent on the synchronization rasters of the global synchronization numbers 24668 and 24671, and the SSB corresponding to the terminal equipment not sharing the spectrum is transmitted on the synchronization rasters of the global synchronization numbers 24669 and 24670.
- the synchronization grating with the largest global synchronization number in the first bandwidth is the synchronization grating of the shared spectrum, or, the synchronization grating with the smallest global synchronization number in the first bandwidth is the synchronization of the shared spectrum rasters, others are synchronous rasters that do not share spectrum, or vice versa.
- the network device only needs to specify a placement rule, and publish the rule to the terminal device, so that the terminal device can determine that the searched SSB is the SSB corresponding to the non-shared spectrum or the shared spectrum in the method provided by this embodiment can be.
- Table 4 below shows the synchronous grating design when the synchronous grating granularity is 34.56MHZ.
- the GSN of the shared spectrum is the smallest GSN in the first bandwidth
- the GSN of the non-shared spectrum is other GSNs in the first bandwidth.
- the global synchronization of non-shared spectrum may also be the smallest global synchronization number in the first bandwidth
- the global synchronization number of shared spectrum may be other global synchronization numbers in the first bandwidth.
- the synchronization grating granularity is 34.56MHz, and the subcarrier spacing of SSB is 120kHz.
- the synchronization grating granularity is 34.56MHz, and the subcarrier spacing of SSB is 120kHz.
- Tables 4 and 5 can be understood as searching for SSBs with a 240 kHz subcarrier spacing at a synchronous raster granularity of 17.28 MHz, or as searching for SSBs with a 120 kHz subcarrier spacing at a synchronous raster granularity of 34.56 MHz.
- the network device determines that the first bandwidth is 400 MHz.
- the global synchronization number determined according to the first formula and the first bandwidth is shown in Table 6 below, where the synchronization grating granularity is 17.28MHz.
- Table 6 takes the synchronous grating of the shared spectrum as the synchronous grating with the smallest number and the largest number in the first bandwidth, and the others are synchronous gratings of the non-shared spectrum as an example.
- the synchronous grating that shares the spectrum can also be the synchronous grating with the smallest number in the first bandwidth, and the others are synchronous gratings that do not share the spectrum as an example.
- the synchronous grating that shares the spectrum can also be the synchronous grating with the largest number in the first bandwidth, and the others are synchronous gratings that do not share the spectrum as an example.
- the utilization rate of the first bandwidth cannot reach 100%, for example, the utilization rate of the bandwidth can only reach 95.04%.
- the position of the largest synchronous grating in the frequency domain is less than or equal to the 332.42MHz within the bandwidth, and within 400MHz, the position of the smallest synchronous grating in the frequency domain is greater than or equal to the 67.46th MHz.
- the synchronization grating corresponding to each global synchronization number can place a complete SSB, which is used as an example in this application but not limited thereto.
- the bandwidth occupied by the corresponding SSB in the frequency domain is 115.2MHz (that is, 480kHz*12*20), and 12 means that one resource block (RB, Resource Block) contains 12 subcarriers.
- Carrier, 20 indicates that one SSB occupies 20 RBs.
- the synchronous grating is located in the middle of the SSB. Therefore, SSB occupies 57.6MHz above and below the synchronous grating.
- the SSB working on the shared spectrum it can be placed on the synchronization raster corresponding to the global synchronization number of part or all of the shared spectrum in the above table 6; for the SSB working on the non-shared spectrum, it can be placed on the above table 6 on the synchronization raster corresponding to the Global Synchronization Number of part or all of the non-shared spectrum.
- the number of available global synchronization numbers of the shared frequency spectrum may be 2, which are located on the largest and smallest global synchronization numbers within the first bandwidth.
- the number of global synchronization numbers for non-shared spectrum may also be two.
- N1 there is an interval of N1 between the GSN of the non-shared spectrum located in the lower frequency domain and the GSN located in the lower frequency domain of the shared spectrum, and N1 can be equal to 3 or 4;
- the interval between the global synchronization number of the shared spectrum and the global synchronization number at a higher frequency domain position in the shared spectrum is N2, and N2 can be equal to 3 or 4;
- the interval of two global synchronization numbers in the non-shared spectrum is N3, and the difference can be 5 or 3 .
- the global synchronization numbers used for shared spectrum in the synchronization raster may be 24931 and 24945, and the global synchronization numbers used for non-shared spectrum in the synchronization raster may be 24936 and 24940.
- the values of N1, N2 and N3 are not particularly limited in this application.
- the number of available global synchronization numbers of the shared frequency spectrum may be 2, which are located on the largest and smallest global synchronization numbers within the first bandwidth.
- the number of global synchronization numbers for non-shared spectrum may be one.
- the interval N4 between the global synchronization number of the non-shared spectrum and the global synchronization number at the lower and higher frequency domain positions in the shared spectrum may be different from any number in 5-7.
- the numerical value of N4 is not particularly limited in this application.
- the network device determines that the first bandwidth is 400 MHz.
- the global synchronization number determined according to the first formula and the first bandwidth is shown in Table 7 below, where the granularity of the synchronization raster is 17.28.
- Table 7 takes the synchronous gratings of the shared spectrum as the synchronous gratings with the smallest number and the largest number in the first bandwidth, and the others are the synchronous gratings of the non-shared spectrum as an example.
- the Sync number is replaced by the GSN for the unshared spectrum and the GSN for the unshared spectrum is replaced by the GSN for the shared spectrum.
- the synchronous grating of the shared spectrum as the synchronous grating with the smallest number in the first bandwidth, and the other synchronous gratings of the non-shared spectrum as an example.
- the synchronous grating of the shared spectrum as the synchronous grating with the largest number in the first bandwidth, and the other synchronous gratings of the non-shared spectrum as an example.
- the Global Synchronization Global Synchronization Number of the unshared spectrum and the Global Synchronization Global Synchronization Number of the unshared spectrum by the Global Synchronization Global Synchronization Number of the shared spectrum.
- the utilization rate of the first bandwidth cannot reach 100%, for example, the utilization rate of the bandwidth can only reach 95.04%.
- the position of the largest synchronous grating in the frequency domain is less than or equal to the 274.82th MHz within the bandwidth, and within 400 MHz, the position of the smallest synchronous grating in the frequency domain is greater than or equal to the 125.06th MHz.
- the synchronization grating corresponding to each global synchronization number can place a complete SSB, which is used as an example in this application but not limited thereto.
- the bandwidth occupied by the corresponding SSB in the frequency domain is 230.4MHz (that is, 960kHz*12*20), and 12 means that one resource block (RB, Resource Block) contains 12 subcarriers.
- Carrier, 20 indicates that one SSB occupies 20 RBs.
- the synchronous grating is located in the middle of the SSB. Therefore, SSB occupies 57.6MHz above and below the synchronous grating.
- the SSB working on the shared spectrum it can be placed on the global synchronization number of part or all of the shared spectrum in the above table 7; for the SSB working on the non-shared spectrum, it can be placed on some or all of the above table 7 on globally synchronized numbers for all shared spectrum.
- the number of global synchronization numbers available for sharing the frequency spectrum may be 2, which are located on the largest and smallest global synchronization numbers within the first bandwidth.
- the number of global synchronization numbers for non-shared spectrum may be one.
- the GSN of the non-shared spectrum and the GSN at the lower and higher frequency domain positions in the shared spectrum have an interval of N5, which may differ by any number in 2-3.
- the specific numerical value of N5 is not limited in this application.
- the first rule is that when a network device designs a synchronization grating, it does not distinguish that some gratings are dedicated to transmitting the SSB corresponding to the terminal device that shares the shared spectrum, nor does it distinguish that some gratings are dedicated to transmitting The SSB corresponding to the terminal equipment that does not share the spectrum.
- the network device sends the SSB to the terminal device, it carries the first signaling, indicating that the current target SSB of the terminal device is the SSB of the non-shared spectrum or the SSB of the shared spectrum.
- the corresponding table 1-7 above does not distinguish between the global synchronization number of the non-shared spectrum and the global synchronization number of the shared spectrum.
- the network device sends the SSB to the terminal device according to the synchronous grating type.
- the network device determines that the frequency range corresponding to the first bandwidth is the shared spectrum corresponding to the terminal device, and the network device sends the SSB to the terminal device on the synchronization raster of the shared spectrum.
- the network device determines that the frequency range corresponding to the first bandwidth is the non-shared frequency spectrum corresponding to the terminal device, and the network device sends the SSB to the terminal device on the synchronization raster of the non-shared frequency spectrum.
- the network device determines that the frequency range corresponding to the first bandwidth is the shared spectrum or the unshared spectrum corresponding to the terminal device, and the network device sends an SSB to the terminal device, where the SSB includes the first signaling, and uses To indicate the resolution method of the SSB, or to indicate that the SSB is an SSB of a non-shared spectrum or an SSB of a shared spectrum.
- the terminal device searches for the target SSB within the frequency range corresponding to the first bandwidth.
- the terminal device searches for the SSB within the frequency range corresponding to the first bandwidth.
- the terminal device parses the SSB according to the method corresponding to the non-shared spectrum. If the global synchronization number of the synchronization raster corresponding to the searched target SSB is the global synchronization number of the shared spectrum, the terminal device parses the SSB according to the method corresponding to the shared spectrum.
- the target SSB searched by the terminal device includes the first signaling, and the terminal device parses the SSB according to the content of the first signaling.
- the method for designing a synchronous grating provided in the embodiment of the present application provides an adaptive first bandwidth under different subcarrier spacings.
- a synchronous grating is reasonably designed to place the synchronous signal block SSB, so that Within the scope of the search capability, the terminal device can access the target SSB by traversing as few SSBs as possible, which saves the power consumption of the terminal device and improves the efficiency of the terminal device in searching for the SSB.
- Fig. 5 is a schematic diagram of a communication device 500 according to an embodiment of the present application, and each unit in the communication device 500 may be implemented by software.
- the communication device 500 may be the network device in the method embodiment 200 above, or a chip for realizing the functions of the network device in the method embodiment above. It should be understood that the communications apparatus 500 may correspond to the steps corresponding to the network device in the method 200 in the embodiment of the present application.
- the communication device 500 includes:
- the transceiver unit 510 is configured to send the SSB to the terminal device.
- the processing unit 520 is configured to determine the first bandwidth.
- the first bandwidth is the search bandwidth required by the terminal device to perform a cell search, and the terminal device accesses a suitable cell by searching for a synchronization signal block (SSB).
- SSB synchronization signal block
- the frequency range of the first bandwidth is above 52.6 GHz, that is, 52.6 GHz-71 GHz, and the first bandwidth is a segment of 52.6 GHz-71 GHz.
- the above52.6GHz frequency band is used as an example to design the synchronous grating syncraster.
- the method of the embodiment of the present application can also be used for synchronization
- the design of the grating is not limited in this embodiment of the present application.
- the processing unit 520 determines the size of the first bandwidth according to the first subcarrier spacing of the SSB.
- the first subcarrier interval of the SSB is 120 kHz, and the processing unit 520 determines that the first bandwidth may be 100 MHz.
- the first subcarrier interval of the SSB is 480 kHz, and the processing unit 520 determines that the first bandwidth may be 400 MHz.
- the subcarrier spacing of the SSB is 960 kHz
- the processing unit 520 determines that the first bandwidth may be 400 MHz.
- the size of the first bandwidth determined by the processing unit 520 may be determined according to the size of the SSB corresponding to the first subcarrier spacing and the bandwidth supported by the terminal device, and the size of the first bandwidth ensures that it can adapt to the capability of the terminal device. It is also necessary to enable the terminal equipment to traverse fewer frequency domain positions when searching for the SSB, shorten the time required for cell search, and also enable more than one synchronization grating to exist in the first bandwidth.
- the processing unit 520 is further configured to determine the global synchronization number within the frequency range corresponding to the first bandwidth.
- a global synchronization number corresponds to a synchronous grating
- a synchronous grating corresponds to an SSB
- the transceiver unit 510 sends the SSB at the frequency domain position of the synchronous grating corresponding to the global synchronization number.
- the terminal device receives the SSB at the position of the synchronous raster. It should be noted that the terminal device searches for the target SSB within the frequency range corresponding to the first bandwidth, and receives the target SSB when the target SSB is found.
- processing unit 520 determines the frequency domain position of the synchronous grating within the frequency range of the first bandwidth according to the following formula:
- f represents the frequency corresponding to the global synchronization number
- A represents the granularity of the synchronization raster
- N+22256 represents the global synchronization number
- N is a positive integer greater than or equal to 0. It should be understood that one frequency corresponds to one global synchronization number.
- the processing unit 520 determines the global synchronization number in the first bandwidth according to the first rule.
- the processing unit 520 determines that on the synchronization raster corresponding to some global synchronization numbers within the frequency range of the first bandwidth, the SSB for the terminal equipment located in the shared spectrum is correspondingly sent, and the synchronization raster for sending the SSB for the terminal equipment located in the shared spectrum is shared
- the synchronization raster of the spectrum, and its corresponding global synchronization number is the global synchronization number of the shared spectrum.
- the frequency-sharing synchronization gratings are synchronization gratings with the smallest number and/or the highest number within the first bandwidth, and the others are synchronization gratings that do not share the frequency spectrum.
- the synchronization gratings that do not share the spectrum are the synchronization gratings with the smallest number and/or the largest number in the first bandwidth, and the others are the synchronization gratings that share the spectrum.
- the processing unit 520 determines that the first bandwidth is 100 MHz.
- the global synchronization number determined according to the first formula and the first bandwidth is shown in Table 1 below, where the synchronization grating granularity is 17.28MHz.
- the synchronous gratings of the shared spectrum are the synchronous gratings with the smallest number and the largest number in the first bandwidth, and the others are the synchronous gratings of the non-shared spectrum as an example.
- the synchronous grating of the shared spectrum is the synchronous grating with the smallest number in the first bandwidth, and the other is the synchronous grating of the non-shared spectrum as an example.
- it is only necessary to replace the global synchronization number of the shared spectrum in the table with the non-shared Spectrum Global Synchronization Number the Global Synchronization Number of non-shared spectrum is replaced by the Global Synchronization Number of shared spectrum.
- the synchronous grating of the shared spectrum is the synchronous grating with the largest number in the first bandwidth, and the other is the synchronous grating of the non-shared spectrum as an example.
- the utilization rate of the first bandwidth cannot reach 100%, for example, the utilization rate of the bandwidth can only reach 95.04%.
- the synchronization raster corresponding to each global synchronization number can place a complete SSB. This application takes this as an example, but is not limited thereto.
- the bandwidth occupied by the corresponding SSB in the frequency domain is 28.8MHz (that is, 120kHz*12*20), and 12 means that one resource block (RB, Resource Block) contains 12 subcarriers.
- Carrier, 20 indicates that one SSB occupies 20 RBs.
- the synchronous grating is located in the middle of the SSB. Therefore, the SSB occupies 14.4MHz above and below the synchronous grating, as shown in Figure 3. It should be noted that, corresponding to the above formula, the frequency in the formula corresponding to the synchronous grating corresponds to the center frequency of the SSB placed on the synchronous grating.
- the frequency range corresponding to the first bandwidth is 63.9GHz-64.0GHz.
- the synchronization gratings with the largest and smallest global synchronization numbers in the first bandwidth are global synchronization numbers of shared spectrum, and others are non-shared spectrum
- the Global Synchronization Number shown in Figure 4, is an example of this design approach.
- SSBs for shared spectrum are located on Global Synchronization Numbers 24668 and 24671, and SSBs for unshared spectrum are located at Global Synchronization Numbers 24669 and 24670.
- 24667 is a synchronous grating that does not meet the conditions, that is, it cannot correspond to a complete SSB within the frequency range of the first bandwidth.
- the processing unit 520 only needs to specify a placement rule, and publish the rule to the terminal device, so that the terminal device can determine that the searched SSB is a non-shared spectrum or a shared spectrum in the method provided by this embodiment. Can.
- Table 4 and Table 5 show the synchronous grating design when the synchronous grating granularity is 34.56MHZ.
- Tables 4 and 5 can be interpreted as searching for SSBs with 240kHz subcarrier spacing at a synchronous raster granularity of 17.28MHz, or as searching for SSBs at a synchronous raster granularity of 34.56MHz.
- the processing unit 520 determines that the first bandwidth is 400 MHz.
- the global synchronization number determined according to the first formula and the first bandwidth is shown in Table 6, wherein the synchronization grating granularity is 17.28MHz.
- the synchronous gratings of the shared spectrum are the synchronous gratings with the smallest number and the largest number in the first bandwidth, and the others are the synchronous gratings of the non-shared spectrum as an example.
- the non-shared Global Synchronization Number is replaced by the Global Synchronization Number of shared spectrum.
- the synchronous grating of the shared spectrum is also possible to take the synchronous grating of the shared spectrum as the synchronous grating with the smallest number in the first bandwidth, and the other synchronous gratings of the non-shared spectrum as an example.
- the utilization rate of the first bandwidth cannot reach 100%, for example, the utilization rate of the bandwidth can only reach 95.04%.
- the position of the largest synchronous grating in the frequency domain is less than or equal to the 332.42MHz within the bandwidth, and within 400MHz, the position of the smallest synchronous grating in the frequency domain is greater than or equal to the 67.46th MHz.
- the synchronization grating corresponding to each global synchronization number can place a complete SSB, which is used as an example in this application but not limited thereto.
- the bandwidth occupied by the corresponding SSB in the frequency domain is 115.2MHz (that is, 480kHz*12*20), and 12 means that one resource block (RB, Resource Block) contains 12 subcarriers.
- Carrier, 20 indicates that one SSB occupies 20 RBs.
- the synchronous grating is located in the middle of the SSB. Therefore, SSB occupies 57.6MHz above and below the synchronous grating.
- the GSN of the shared spectrum may also be the GSN of the non-shared spectrum
- the GSN of the non-shared spectrum may also be the GSN of the shared spectrum.
- the processing unit 520 determines that the first bandwidth is 400 MHz.
- the global synchronization number determined according to the first formula and the first bandwidth is shown in Table 7, where the synchronization grating granularity is 17.28.
- the synchronous gratings of the shared spectrum are the synchronous gratings with the smallest number and the largest number in the first bandwidth, and the others are the synchronous gratings of the non-shared spectrum as an example.
- the utilization rate of the first bandwidth cannot reach 100%, for example, the utilization rate of the bandwidth can only reach 95.04%.
- the position of the largest synchronous grating in the frequency domain is less than or equal to the 274.82th MHz within the bandwidth, and within 400 MHz, the position of the smallest synchronous grating in the frequency domain is greater than or equal to the 125.06th MHz.
- the synchronization grating corresponding to each global synchronization number can place a complete SSB, which is used as an example in this application but not limited thereto.
- the bandwidth occupied by the corresponding SSB in the frequency domain is 230.4MHz (that is, 960kHz*12*20), and 12 means that one resource block (RB, Resource Block) contains 12 subcarriers.
- Carrier, 20 indicates that one SSB occupies 20 RBs.
- the synchronous grating is located in the middle of the SSB. Therefore, SSB occupies 57.6MHz above and below the synchronous grating.
- the first rule is that when the processing unit 520 designs the synchronous gratings, it does not distinguish between some gratings that are dedicated to transmitting The SSB corresponding to the terminal equipment that does not share the spectrum.
- the transceiving unit 510 carries the first signaling, indicating that the current target SSB of the terminal device is the SSB of the shared spectrum or the SSB of the non-shared spectrum.
- the transceiver unit 510 is also configured to send the SSB to the terminal device according to the type of the synchronous raster.
- the processing unit 520 determines that the frequency range corresponding to the first bandwidth is the shared spectrum corresponding to the terminal device, and the transceiver unit 510 sends the SSB to the terminal device on the synchronization raster of the shared spectrum.
- the processing unit 520 determines that the frequency range corresponding to the first bandwidth is the non-shared frequency spectrum corresponding to the terminal device, and the transceiver unit 510 sends the SSB to the terminal device on the synchronization raster of the non-shared frequency spectrum.
- the processing unit 520 determines that the frequency range corresponding to the first bandwidth is the shared spectrum or the unshared spectrum corresponding to the terminal device, and the transceiver unit 510 sends the SSB to the terminal device, and the SSB includes the first signaling , used to indicate the parsing method of the SSB, or used to indicate that the SSB is an SSB of a non-shared spectrum or an SSB of a shared spectrum.
- the communication device 500 may be the terminal device in the method embodiment 200 above, or a chip for realizing the functions of the terminal device in the method embodiment above. It should be understood that the communication apparatus 500 may correspond to the steps corresponding to the terminal device in the method 200 in the embodiment of the present application.
- the communication device 500 includes:
- Transceiving unit 510 for receiving the SSB.
- Processing unit 520 for parsing the SSB.
- the first bandwidth is a search bandwidth required by the processing unit 520 to perform a cell search, and the processing unit 520 accesses a suitable cell by searching a synchronization signal block (SSB).
- SSB synchronization signal block
- the frequency range of the first bandwidth is above 52.6 GHz, that is, 52.6 GHz-71 GHz, and the first bandwidth is a segment of 52.6 GHz-71 GHz.
- the above52.6GHz frequency band is used as an example to design the synchronous grating syncraster.
- the method of the embodiment of the present application can also be used for synchronization
- the design of the grating is not limited in this embodiment of the present application.
- the network device determines the size of the first bandwidth according to the first subcarrier spacing of the SSB.
- the first subcarrier interval of the SSB is 120 kHz, and the network device determines that the first bandwidth may be 100 MHz.
- the first subcarrier interval of the SSB is 480 kHz, and the network device determines that the first bandwidth may be 400 MHz.
- the subcarrier spacing of the SSB is 960 kHz, and the network device determines that the first bandwidth may be 400 MHz.
- the size of the first bandwidth determined by the network device may be determined according to the size of the SSB corresponding to the first subcarrier interval and the bandwidth supported by the processing unit 520, and the size of the first bandwidth ensures that it can adapt to the capability of the processing unit 520 , the processing unit 520 should also traverse fewer frequency domain positions when searching for SSBs, shorten the time required for cell search, and also enable more than one synchronization grating to exist in the first bandwidth.
- a global synchronization number corresponds to a synchronous raster
- a synchronous raster corresponds to an SSB
- the network device sends the SSB at the frequency domain position of the synchronous raster corresponding to the global synchronous number.
- the transceiver unit 510 receives the SSB at the position of the synchronous raster.
- the processing unit 520 searches for the target SSB within the frequency range corresponding to the first bandwidth, and receives the target SSB when the target SSB is found.
- the network device determines the numbers of the synchronous gratings within the frequency range of the first bandwidth according to the following formula:
- f represents the frequency corresponding to the global synchronization number
- A represents the granularity of the synchronous grating
- N+22256 represents the global synchronization number
- N is a positive integer greater than or equal to 0 and less than or equal to 4383. It should be understood that one frequency corresponds to one global synchronization number.
- the network device determines the global synchronization number within the first bandwidth according to the first rule.
- the network device determines that on the synchronization raster corresponding to some global synchronization numbers within the frequency range of the first bandwidth, the SSB for the processing unit 520 located in the shared spectrum is correspondingly sent, and the synchronization raster for sending the SSB of the terminal device located in the shared spectrum is shared
- the synchronization raster of the spectrum, and its corresponding global synchronization number is the global synchronization number of the shared spectrum.
- the SSB for the processing unit 520 located in the non-shared spectrum is correspondingly sent, and the synchronization grating for the SSB of the processing unit 520 located in the non-shared spectrum is sent as the non-shared spectrum synchronization grating, and its corresponding
- the Global Synchronization Number is the Global Synchronization Number of the unshared spectrum.
- the synchronization gratings that do not share the frequency spectrum are the synchronization gratings with the smallest number and/or the highest number in the first bandwidth, and the others are the synchronization gratings that share the frequency spectrum.
- the frequency-sharing synchronization gratings are synchronization gratings with the smallest number and/or the highest number in the first bandwidth, and the others are synchronization gratings that do not share the frequency spectrum.
- the network device determines that the first bandwidth is 100 MHz.
- the global synchronization number determined according to the first formula and the first bandwidth is shown in Table 1 below, where the synchronization grating granularity is 17.28MHz.
- the synchronous gratings of the non-shared spectrum are the synchronous gratings with the smallest number and the largest number in the first bandwidth, and the others are the synchronous gratings of the shared spectrum as an example.
- the synchronous grating of the non-shared spectrum is the synchronous grating with the smallest number in the first bandwidth, and the others are the synchronous gratings of the shared spectrum as an example.
- the global synchronization number of the shared spectrum in the table needs to be replaced by the non-shared Spectrum Global Synchronization Number, Non-shared Spectrum Global Synchronization Number is replaced by Shared Spectrum Global Synchronization Number.
- the synchronous grating of the non-shared spectrum is the synchronous grating with the largest number in the first bandwidth, and the others are the synchronous gratings of the shared spectrum as an example.
- the utilization rate of the first bandwidth cannot reach 100%, for example, the utilization rate of the bandwidth can only reach 95.04%.
- the synchronization raster corresponding to each global synchronization number can place a complete SSB. This application takes this as an example, but is not limited thereto.
- the bandwidth occupied by the corresponding SSB in the frequency domain is 28.8MHz (that is, 120kHz*12*20), and 12 means that one resource block (RB, Resource Block) contains 12 subcarriers.
- Carrier, 20 indicates that one SSB occupies 20 RBs.
- the synchronous grating is located in the middle of the SSB. Therefore, the SSB occupies 14.4MHz above and below the synchronous grating, as shown in Figure 3. It should be noted that, corresponding to the above formula, the frequency in the formula corresponding to the synchronous grating corresponds to the center frequency of the SSB placed on the synchronous grating.
- the GSN of the shared spectrum may also be the GSN of the non-shared spectrum, and the GSN of the non-shared spectrum may also be the GSN of the shared spectrum.
- the frequency range corresponding to the first bandwidth is 63.9GHz-64.0GHz.
- the synchronization gratings with the largest and smallest global synchronization numbers in the first bandwidth are the synchronization gratings of the non-shared spectrum, and the others are the synchronization gratings of the shared spectrum.
- a synchronous grating, shown in Figure 4, is an example of this design approach.
- the SSBs on the shared spectrum bands are on Global Synchronization Numbers 24668 and 24671
- the SSBs on the non-shared bands are on Global Synchronization Numbers 24669 and 24670.
- the synchronization grating with the largest global synchronization number in the first bandwidth is the synchronization grating of the shared spectrum, or, the synchronization with the smallest global synchronization number in the first bandwidth is the synchronization of the shared spectrum synchronous rasters, others are synchronous rasters that do not share the spectrum, or vice versa.
- the network device only needs to specify a placement rule, and publish the rule to the processing unit 520, so that the processing unit 520 can determine whether the searched SSB is a non-shared spectrum or a shared spectrum in the method provided by this embodiment. That's it.
- Table 4 and 5 show the synchronous grating design when the synchronous grating granularity is 34.56MHZ.
- Tables 4 and 5 can be understood as searching for SSBs with a 240 kHz subcarrier spacing at a synchronous raster granularity of 17.28 MHz, or as searching for SSBs with a 120 kHz subcarrier spacing at a synchronous raster granularity of 34.56 MHz.
- the network device determines that the first bandwidth is 400 MHz.
- the global synchronization number determined according to the first formula and the first bandwidth is shown in Table 6 below, where the granularity of the synchronization grating is 17.28.
- the synchronous gratings of the shared spectrum are the synchronous gratings with the smallest number and the largest number in the first bandwidth, and the others are the synchronous gratings of the non-shared spectrum as an example.
- the utilization rate of the first bandwidth cannot reach 100%, for example, the utilization rate of the bandwidth can only reach 95.04%.
- the position of the largest synchronous grating in the frequency domain is less than or equal to the 332.42MHz within the bandwidth, and within 400MHz, the position of the smallest synchronous grating in the frequency domain is greater than or equal to the 67.46th MHz.
- the synchronization grating corresponding to each global synchronization number can place a complete SSB, which is used as an example in this application but not limited thereto.
- the bandwidth occupied by the corresponding SSB in the frequency domain is 115.2MHz (that is, 480kHz*12*20), and 12 means that one resource block (RB, Resource Block) contains 12 subcarriers.
- Carrier, 20 indicates that one SSB occupies 20 RBs.
- the synchronous grating is located in the middle of the SSB. Therefore, SSB occupies 57.6MHz above and below the synchronous grating.
- the GSN of the shared spectrum may also be the GSN of the non-shared spectrum, and the GSN of the non-shared spectrum may also be the GSN of the shared spectrum.
- the network device determines that the first bandwidth is 400 MHz.
- the global synchronization number determined according to the first formula and the first bandwidth is shown in Table 4 below, where the synchronization grating granularity is 17.28.
- the synchronous gratings of the non-shared spectrum are the synchronous gratings with the smallest number and the largest number in the first bandwidth, and the others are the synchronous gratings of the shared spectrum as an example.
- the synchronous grating of the non-shared spectrum can also be used as the synchronous grating with the largest number in the first bandwidth, and the others are the synchronous gratings of the shared spectrum as an example.
- the global synchronization number of the shared spectrum in the table needs to be replaced by the non-shared Spectrum Global Synchronization Number, Non-shared Spectrum Global Synchronization Number is replaced by Shared Spectrum Global Synchronization Number. This application does not limit this.
- the utilization rate of the first bandwidth cannot reach 100%, for example, the utilization rate of the bandwidth can only reach 95.04%.
- the position of the largest synchronous grating in the frequency domain is less than or equal to the 274.82th MHz within the bandwidth, and within 400 MHz, the position of the smallest synchronous grating in the frequency domain is greater than or equal to the 125.06th MHz.
- the synchronization grating corresponding to each global synchronization number can place a complete SSB, which is used as an example in this application but not limited thereto.
- the bandwidth occupied by the corresponding SSB in the frequency domain is 230.4MHz (that is, 960kHz*12*20), and 12 means that one resource block (RB, Resource Block) contains 12 subcarriers.
- Carrier, 20 indicates that one SSB occupies 20 RBs.
- the synchronous grating is located in the middle of the SSB. Therefore, SSB occupies 57.6MHz above and below the synchronous grating.
- the first rule is that when a network device designs a synchronous grating, it does not distinguish between some gratings that are dedicated to sending the SSB corresponding to the processing unit 520 of the shared spectrum, and does not distinguish that some gratings are dedicated to sending The SSB corresponding to the processing unit 520 of the unshared spectrum.
- the network device sends the SSB to the transceiver unit 510, it carries the first signaling, indicating that the current target SSB of the processing unit 520 is the SSB of the non-shared spectrum or the SSB of the shared spectrum.
- the corresponding table 1-4 above does not distinguish between the global synchronization number of non-shared spectrum and the global synchronization number of shared spectrum.
- the transceiver unit 510 is also used for receiving the SSB.
- the network device determines that the frequency range corresponding to the first bandwidth is the shared spectrum corresponding to the processing unit 520, and the network device sends the SSB to the transceiver unit 510 on the synchronization raster of the shared spectrum.
- the network device determines that the frequency range corresponding to the first bandwidth is the non-shared frequency spectrum corresponding to the processing unit 520, and the network device sends the SSB to the transceiver unit 510 on the synchronization raster of the non-shared frequency spectrum.
- the network device determines that the frequency range corresponding to the first bandwidth is the shared spectrum or the unshared spectrum corresponding to the processing unit 520, and the network device sends the SSB to the transceiver unit 510, and the SSB includes the first signaling , used to indicate the parsing method of the SSB, or used to indicate that the SSB is an SSB of a non-shared spectrum or an SSB of a shared spectrum.
- the processing unit 520 is further configured to search for the SSB within the frequency range corresponding to the first bandwidth.
- the processing unit 520 parses the SSB according to the method corresponding to the non-shared spectrum. If the global synchronization number of the synchronization raster corresponding to the searched target SSB is the upper synchronization number of the shared spectrum, the processing unit 520 analyzes the SSB according to the method corresponding to the shared spectrum.
- the target SSB searched by the processing unit 520 includes the first signaling, and the processing unit 520 parses the SSB according to the content of the first signaling.
- FIG. 6 is a schematic diagram of a communication device 600 according to an embodiment of the present application, and the communication device 600 includes: a transceiver 610 , a processor 620 and a memory 630 .
- the memory 630 is used to store instructions.
- the processor 620 is coupled with the memory 630, and is configured to execute instructions stored in the memory, so as to execute the method provided by the foregoing embodiments of the present application.
- the transceiver 610 in the communication device 600 may correspond to the transceiver unit 510 in the communication device 500
- the processor 620 in the communication device 600 may correspond to the processing unit 520 in the communication device 500 .
- the memory 630 and the processor 620 may be combined into one processing device, and the processor 620 is configured to execute the program codes stored in the memory 630 to implement the above functions.
- the memory 630 may also be integrated in the processor 620 , or be independent of the processor 620 .
- the disclosed systems, devices and methods may be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division. In actual implementation, there may be other division methods.
- multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
- the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
- the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
- the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
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Abstract
Description
Claims (35)
- 一种同步光栅的设计方法,其特征在于,包括:网络设备确定第一带宽,所述第一带宽对应的频率范围高于52.6吉赫兹GHz;所述网络设备根据第一规则在所述第一带宽内配置多个同步光栅,每个同步光栅放置一个同步信号块SSB,所述每个同步光栅对应一个全球同步编号。
- 根据权利要求1所述的方法,其特征在于,所述网络设备确定所述第一带宽,包括:所述网络设备根据所述SSB的第一子载波间隔确定所述第一带宽,其中,当所述第一子载波间隔为120千赫兹kHz时,所述第一带宽为100兆赫兹MHz,当所述第一子载波间隔为480kHz时,所述第一带宽为400MHz,当所述第一子载波间隔为960kHz时,所述第一带宽为400MHz。
- 根据权利要求1或2所述的方法,其特征在于,同步光栅的类型包括共享频谱的同步光栅和非共享频谱的同步光栅。
- 根据权利要求1至3中任一项所述的方法,其特征在于,所述第一规则为:在所述第一带宽内,所述共享频谱的同步光栅和所述非共享频谱的同步光栅位于不同的频域位置。
- 根据权利要求4所述的方法,其特征在于,在所述第一带宽内,所述共享频谱的同步光栅和非共享频谱的同步光栅位于不同的频域位置,包括:在所述第一带宽内,所述共享频谱的同步光栅位于全球同步编号最小和/或全球同步编号最大的同步光栅对应的频域位置,所述非共享频谱的同步光栅位于剩余的全球同步编号的同步光栅对应的频域位置,或者,在所述第一带宽内,所述非共享频谱的同步光栅位于全球同步编号最小和/或全球同步编号最大的同步光栅对应的频域位置,所述共享频谱的同步光栅位于剩余的全球同步编号的同步光栅对应的频域位置。
- 根据权利要求1至5中任一项所述的方法,其特征在于,所述方法还包括:所述网络设备在所述共享频谱的同步光栅对应的频域位置上发送共享频谱对应的SSB,或,所述网络设备在所述非共享频谱的同步光栅对应的频域位置上发送非共享频谱对应的SSB。
- 根据权利要求1至3中任一项所述的方法,其特征在于,所述第一规则为:在所述第一带宽内,所述共享频谱的同步光栅和所述非共享频谱的同步光栅位于相同的第一频域位置。
- 根据权利要求7所述的方法,其特征在于,所述方法还包括:所述网络设备向所述终端设备发送第一信令,所述第一信令用于指示所述第一频域位置用于发送共享频谱对应的SSB或非共享频谱对应的SSB。
- 一种同步光栅的设计方法,其特征在于,包括:终端设备确定第一带宽对应的频率范围;所述终端设备在所述第一带宽对应的频率范围内的全球同步编号对应的同步光栅的 频域位置搜索同步信号块SSB。
- 根据权利要求9所述的方法,其特征在于,所述第一带宽由所述SSB的第一子载波间隔确定,其中,当所述第一子载波间隔为120千赫兹kHz时,所述第一带宽为100兆赫兹MHz,当所述第一子载波间隔为480kHz时,所述第一带宽为400MHz,当所述第一子载波间隔为960kHz时,所述第一带宽为400MHz。
- 根据权利要求9或10所述的方法,其特征在于,同步光栅的类型包括共享频谱同步光栅和非共享频谱同步光栅。
- 根据权利要求9至11中任一项所述的方法,其特征在于,所述第一规则为:在所述第一带宽内,所述共享频谱的同步光栅和所述非共享频谱的同步光栅位于不同的频域位置。
- 根据权利要求12所述的方法,其特征在于,在所述第一带宽内,所述共享频谱的同步光栅和所述非共享频谱的同步光栅位于不同的频域位置,包括:在所述第一带宽内,所述共享频谱的同步光栅位于全球同步编号最小和/或全球同步编号最大的同步光栅对应的频域位置,所述非共享频谱的同步光栅位于剩余的全球同步编号的同步光栅对应的频域位置,或者,在所述第一带宽内,所述非共享频谱的同步光栅位于全球同步编号最小和/或全球同步编号最大的同步光栅对应的频域位置,所述共享频谱的同步光栅位于剩余的全球同步编号的同步光栅对应的频域位置。
- 根据权利要求9至11中任一项所述的方法,其特征在于,所述第一规则为:在所述第一带宽内,所述共享频谱的同步光栅和所述非共享频谱的同步光栅位于相同的第一频域位置。
- 根据权利要求14所述的方法,其特征在于,所述方法还包括:所述终端设备接收所述网络设备发送的第一信令,所述第一信令用于指示所述第一频域位置发送的SSB为共享频谱对应的SSB或非共享频谱对应的SSB。
- 一种通信装置,其特征在于,包括:处理单元,用于确定第一带宽,所述第一带宽对应的频率范围高于52.6吉赫兹GHz;所述处理单元还用于根据第一规则在所述第一带宽内配置多个同步光栅,每个同步光栅放置一个同步信号块SSB,所述每个同步光栅对应一个全球同步编号。
- 根据权利要求16所述的装置,其特征在于,所述网络设备确定所述第一带宽,包括:所述网络设备根据所述SSB的第一子载波间隔确定所述第一带宽,其中,当所述第一子载波间隔为120千赫兹kHz时,所述第一带宽为100兆赫兹MHz,当所述第一子载波间隔为480kHz时,所述第一带宽为400MHz,当所述第一子载波间隔为960kHz时,所述第一带宽为400MHz。
- 根据权利要求16或17所述的装置,其特征在于,同步光栅的类型包括共享频谱的同步光栅和非共享频谱的同步光栅。
- 根据权利要求16至18中任一项所述的装置,其特征在于,所述第一规则为:在所述第一带宽内,所述共享频谱的同步光栅和所述非共享频谱的同步光栅位于不同 的频域位置。
- 根据权利要求19所述的装置,其特征在于,在所述第一带宽内,所述共享频谱的同步光栅和非共享频谱的同步光栅位于不同的频域位置,包括:在所述第一带宽内,所述共享频谱的同步光栅位于全球同步编号最小和/或全球同步编号最大的同步光栅对应的频域位置,所述非共享频谱的同步光栅位于剩余的全球同步编号的同步光栅对应的频域位置,或者,在所述第一带宽内,所述非共享频谱的同步光栅位于全球同步编号最小和/或全球同步编号最大的同步光栅对应的频域位置,所述共享频谱的同步光栅位于剩余的全球同步编号的同步光栅对应的频域位置。
- 根据权利要求16至20中任一项所述的装置,其特征在于,所述装置还包括:收发单元,用于在所述共享频谱的同步光栅对应的频域位置上发送共享频谱对应的SSB,或,在所述非共享频谱的同步光栅对应的频域位置上发送非共享频谱对应的SSB。
- 根据权利要求16至18中任一项所述的装置,其特征在于,所述第一规则为:在所述第一带宽内,所述共享频谱的同步光栅和所述非共享频谱的同步光栅位于相同的第一频域位置。
- 根据权利要求22所述的装置,其特征在于,所述收发单元还用于向所述终端设备发送第一信令,所述第一信令用于指示所述第一频域位置用于发送共享频谱对应的SSB或非共享频谱对应的SSB。
- 一种通信装置,其特征在于,包括:处理单元,用于确定第一带宽对应的频率范围;所述处理单元还用于在所述第一带宽对应的频率范围内的全球同步编号对应的同步光栅的频域位置搜索同步信号块SSB。
- 根据权利要求24所述的装置,其特征在于,所述第一带宽由所述SSB的第一子载波间隔确定,其中,当所述第一子载波间隔为120千赫兹kHz时,所述第一带宽为100兆赫兹MHz,当所述第一子载波间隔为480kHz时,所述第一带宽为400MHz,当所述第一子载波间隔为960kHz时,所述第一带宽为400MHz。
- 根据权利要求24或25所述的装置,其特征在于,同步光栅的类型包括共享频谱同步光栅和非共享频谱同步光栅。
- 根据权利要求24至26中任一项所述的装置,其特征在于,所述第一规则为:在所述第一带宽内,所述共享频谱的同步光栅和所述非共享频谱的同步光栅位于不同的频域位置。
- 根据权利要求27所述的装置,其特征在于,在所述第一带宽内,所述共享频谱的同步光栅和所述非共享频谱的同步光栅位于不同的频域位置,包括:在所述第一带宽内,所述共享频谱的同步光栅位于全球同步编号最小和/或全球同步编号最大的同步光栅对应的频域位置,所述非共享频谱的同步光栅位于剩余的全球同步编号的同步光栅对应的频域位置,或者,在所述第一带宽内,所述非共享频谱的同步光栅位于全球同步编号最小和/或全球同 步编号最大的同步光栅对应的频域位置,所述共享频谱的同步光栅位于剩余的全球同步编号的同步光栅对应的频域位置。
- 根据权利要求24至26中任一项所述的装置,其特征在于,所述第一规则为:在所述第一带宽内,所述共享频谱的同步光栅和所述非共享频谱的同步光栅位于相同的第一频域位置。
- 根据权利要求29所述的装置,其特征在于,所述装置还包括:收发单元,用于接收所述网络设备发送的第一信令,所述第一信令用于指示所述第一频域位置发送的SSB为共享频谱对应的SSB或非共享频谱对应的SSB。
- 一种通信装置,其特征在于,包括:存储器,用于存储程序指令和数据;处理器,用于与所述存储器耦合,执行所述存储器中的指令,以实现如权利要求1至8中任一项所述的方法。
- 一种通信装置,其特征在于,包括:存储器,用于存储程序指令和数据;处理器,用于与所述存储器耦合,执行所述存储器中的指令,以实现如权利要求9至15中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,所述计算机可读介质上存储有计算机指令,当所述计算机指令在计算机上运行时,使得所述计算机执行如权利要求1至15中任意一项所述的通信方法。
- 一种芯片,其特征在于,包括处理器和存储器,所述存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机介质,以执行如权利要求1至15中任一项所述的方法。
- 一种通信系统,包括如权利要求16-23中任一项所述通信装置和如权利要求24-30中任一项所述的通信装置。
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