WO2020258028A1 - 用于小区接入的方法及设备 - Google Patents

用于小区接入的方法及设备 Download PDF

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Publication number
WO2020258028A1
WO2020258028A1 PCT/CN2019/092787 CN2019092787W WO2020258028A1 WO 2020258028 A1 WO2020258028 A1 WO 2020258028A1 CN 2019092787 W CN2019092787 W CN 2019092787W WO 2020258028 A1 WO2020258028 A1 WO 2020258028A1
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Prior art keywords
pbch
value
network device
scrambling code
code sequence
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PCT/CN2019/092787
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English (en)
French (fr)
Inventor
徐伟杰
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2019/092787 priority Critical patent/WO2020258028A1/zh
Priority to CN201980089711.1A priority patent/CN113348696B/zh
Publication of WO2020258028A1 publication Critical patent/WO2020258028A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of communications, and more specifically, to a method and device for cell access.
  • IoT devices have the advantages of low cost, low price, ultra-low power consumption, and deep coverage scenarios. IoT devices can support some applications with low data transmission rates and high transmission delays. For example, IoT devices can support transmission rates of 10MHz and 100Mbps. However, the current bandwidth configuration of NR is usually greater than 10MHz. The bandwidth that NR devices can support is different, so how to control the access of IoT devices to the cell is an urgent problem to be solved.
  • This application provides a method and device for cell access, which can avoid the mutual influence of IoT devices and non-IoT devices accessing the cell.
  • a method for cell access including: an Internet of Things device receives a first physical broadcast channel PBCH, where the first PBCH is a PBCH sent by a network device to the Internet of Things device, where all The first PBCH and the second PBCH are different in at least one of the following aspects: the scrambling code sequence of the PBCH, the synchronization channel grid for receiving the PBCH, and the second PBCH is sent by the network device for non-IoT devices PBCH.
  • a method for cell access including: an Internet of Things device receives first system information, where the first system information is system information sent by the network device to the Internet of Things device for adding The system information radio network temporary identifier SI-RNTI of the physical downlink control channel PDCCH used to scramble and schedule the first system information is different from the SI-RNTI used to scramble and schedule the PDCCH of the second system information.
  • the second system information is The network device is directed to system information sent by non-Internet of things devices.
  • a method for cell access including: a network device sends a first physical broadcast channel PBCH, where the first PBCH is a PBCH sent by the network device for the Internet of Things device, where: The first PBCH and the second PBCH are different in at least one of the following aspects: the scrambling code sequence of the PBCH, the synchronization channel grid for sending the PBCH, and the second PBCH is sent by the network device for non-IoT devices PBCH.
  • a method for cell access including: a network device sends first system information, where the first system information is system information sent by the network device for the Internet of Things device, and is used for scrambling the dispatching station.
  • the system information radio network temporary identifier SI-RNTI of the physical downlink control channel PDCCH of the first system information is different from the SI-RNTI used to scramble and schedule the PDCCH of the second system information.
  • the second system information is the network System information sent by the device for non-IoT devices.
  • a terminal device configured to execute any one of the foregoing first to second aspects or the method in each implementation manner thereof.
  • the terminal device includes a functional module for executing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • a network device for executing any one of the foregoing third to fourth aspects or the method in each implementation manner thereof.
  • the network device includes a functional module for executing any one of the foregoing third aspect to the fourth aspect or the method in each implementation manner thereof.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute any one of the foregoing third aspect to the fourth aspect or the method in each implementation manner thereof.
  • a device for implementing any one of the foregoing first to fourth aspects or the method in each implementation manner thereof.
  • the device includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first aspect to the fourth aspect or any of the implementation modes thereof method.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute any one of the above-mentioned first to fourth aspects or the method in each implementation manner thereof.
  • a computer program product including computer program instructions that cause a computer to execute any one of the first to fourth aspects above or the method in each implementation manner thereof.
  • a computer program which, when run on a computer, causes the computer to execute any one of the above-mentioned first to fourth aspects or the method in each implementation manner thereof.
  • the scrambling code sequence and/or the synchronization channel grid of the first PBCH for IoT devices and the second PBCH for non-IoT devices are different. Since PBCH can be used for cell access, PBCH is different and can avoid the mutual influence of IoT devices and non-IoT devices accessing the cell.
  • the SI-RNTI used to schedule the PDCCH of the first system information and the SI-RNTI used to schedule the PDCCH of the second system information of the non-IoT device so that the non-IoT device cannot
  • the first system information for the Internet of Things device is read, so that the community of the Internet of Things device cannot be accessed, which can avoid the mutual influence of the Internet of Things device and the non-IoT device accessing the community.
  • Fig. 1 is a schematic diagram of a wireless communication system applied in an embodiment of the present application.
  • Fig. 2 is a schematic diagram of PDCCH CORESET provided by an embodiment of the present application.
  • Fig. 3 is a schematic flowchart of a method for cell access provided by an embodiment of the present application.
  • Fig. 4 is a schematic flowchart of another method for cell access provided by an embodiment of the present application.
  • Fig. 5 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • Fig. 6 is a schematic block diagram of another terminal device provided by an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • Fig. 8 is a schematic block diagram of another network device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • Fig. 1 is a schematic diagram of a system 100 according to an embodiment of the present application.
  • the terminal device 110 is connected to the first network device 130 under the first communication system and the second network device 120 under the second communication system.
  • the first network device 130 is a Long Term Evolution (Long Term Evolution).
  • the second network device 120 is a network device under a New Radio (NR).
  • NR New Radio
  • the first network device 130 and the second network device 120 may include multiple cells.
  • FIG. 1 is an example of a communication system in an embodiment of the present application, and the embodiment of the present application is not limited to that shown in FIG. 1.
  • the communication system to which the embodiment of the present application is adapted may include at least multiple network devices under the first communication system and/or multiple network devices under the second communication system.
  • the system 100 shown in FIG. 1 may include one main network device under the first communication system and at least one auxiliary network device under the second communication system. At least one auxiliary network device is respectively connected to the one main network device to form multiple connections, and is connected to the terminal device 110 to provide services for it. Specifically, the terminal device 110 may simultaneously establish a connection through the main network device and the auxiliary network device.
  • connection established between the terminal device 110 and the main network device is the main connection
  • connection established between the terminal device 110 and the auxiliary network device is the auxiliary connection.
  • the control signaling of the terminal device 110 may be transmitted through the main connection
  • the data of the terminal device 110 may be transmitted through the main connection and the auxiliary connection at the same time, or may be transmitted only through the auxiliary connection.
  • first communication system and the second communication system in the embodiment of the present application are different, but the specific types of the first communication system and the second communication system are not limited.
  • the first communication system and the second communication system may be various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD) ), Universal Mobile Telecommunication System (UMTS), 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
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the main network device and the auxiliary network device may be any access network device.
  • the access network device may be a base station (Base Transceiver) in the Global System of Mobile Communications (GSM) system or Code Division Multiple Access (CDMA). Station, BTS), it can also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station in a Long Term Evolution (LTE) system (Evolutional Node B, eNB or eNodeB).
  • GSM Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • Station, BTS can also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station in a Long Term Evolution (LTE) system (Evolutional Node B, eNB or eNodeB).
  • GSM Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • Station, BTS can also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system,
  • the access network device may also be a Next Generation Radio Access Network (NG RAN), or a base station (gNB) in an NR system, or a cloud radio access network (Cloud
  • NG RAN Next Generation Radio Access Network
  • gNB base station
  • Cloud Cloud
  • the radio controller in Radio Access Network, CRAN, or the access network device can be a relay station, access point, in-vehicle device, wearable device, or in the future evolution of Public Land Mobile Network (PLMN) Network equipment, etc.
  • PLMN Public Land Mobile Network
  • the first network device 130 is taken as the main network device, and the second network device 120 is taken as an auxiliary network device as an example.
  • the first network device 130 may be an LTE network device, and the second network device 120 may be an NR network device. Or, the first network device 130 may be an NR network device, and the second network device 120 may be an LTE network device. Or both the first network device 130 and the second network device 120 may be NR network devices. Or the first network device 130 may be a GSM network device, a CDMA network device, etc., and the second network device 120 may also be a GSM network device, a CDMA network device, etc. Or the first network device 130 may be a Macrocell, and the second network device 120 may be a Microcell, Picocell, Femtocell, or the like.
  • the terminal device 110 may be any terminal device, and the terminal device 110 includes but is not limited to:
  • wired lines such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection; and/or another data connection/network; and/ Or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters; and/or another terminal device
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN wireless local area networks
  • digital TV networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters
  • IoT Internet of Things
  • a terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal” or a "mobile terminal”.
  • Examples of mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio phone transceivers Electronic device.
  • Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • MTC machine type communication
  • eMTC enhanced MTC
  • 3GPP 3rd generation partnership project
  • IoT terminals have the advantages of low cost, low price, support for ultra-low power consumption, and support for deep coverage scenarios, which are conducive to the rapid popularization of IoT technology in the early development stage.
  • these devices have limitations in some application scenarios. Since the design goal of MTC/eMTC devices and IoT devices is to support some applications with low data rates and high transmission delays, for some IoT scenarios that require relatively high rates, For example, video surveillance in smart security and industrial applications that require relatively low latency cannot be applied. However, if a terminal device with a high transmission rate and low transmission delay is directly used, it will far exceed the actual requirements of these scenarios and increase unnecessary costs. Therefore, an IoT type device that supports medium transmission rate, medium delay requirement, and medium and low bandwidth size is proposed. For example, it can support 10MHz bandwidth and 100Mbps transmission rate.
  • the terminal devices mentioned in the embodiments of the present application may include IoT devices or non-IoT devices.
  • the terminal device shown in FIG. 1 may include Internet of Things devices or non-Internet of Things devices.
  • the IoT devices in the embodiments of the present application may have one or more of the following characteristics: 1) narrower bandwidth; 2) fewer antennas; 3) lower support Data transmission rate; 4) Lower maximum transmission power.
  • the terminal device When the terminal device accesses the cell, it needs to detect the synchronization signal block (synchronizing signal/PBCH block, SSB, SS Block or SS/PBCH block).
  • the SSB may include a primary synchronization signal (primary synchronization signal, PSS), a secondary synchronization signal (secondary synchronization signal, SSS), and a physical broadcast channel (physical broadcast channel, PBCH), for example.
  • the PBCH can be used to indicate the configuration information of the physical downlink control channel (PDCCH) control resource set (control response set, CORESET), and the terminal equipment can obtain the remaining minimum system information (remaining minimum system information) in the PDCCH CORESET.
  • system information, RMSI system information
  • the terminal device can access the cell based on the information in the RMSI.
  • the PDCCH CORESET can be configured as 24, 48, or 96 physical resource blocks (PRB). As shown in Table 1, Table 1 shows an example of PBCH configuration RMSI PDCCH CORESET.
  • RB stands for resource block (resource block, RB).
  • index number 1 when index number is 1, the multiplexing mode of SSB and CORESET is mode 1, the number of RBs occupied by PDCCH CORESET is 24, the number of symbols occupied by PDCCH CORESET is 2, and the offset of RB The shift amount is 2, that is, the resource location of the PDCCH CORESET is offset by 2 RBs.
  • the non-IoT device in the embodiment of the present application may include an NR terminal.
  • the subcarrier spacing, the size of the occupied bandwidth, and the frequency band position of the initial active downlink bandwidth part (initial active downlink bandwidth part, initial active DL BWP) in the NR are consistent with the above-mentioned PDCCH CORESET.
  • the transmission of system messages required for the initial access process of the terminal equipment, such as RMSI, system information block (system information block, SIB), paging message, random access response (random access response, RAR) message, etc. are required This is done in this bandwidth part (BWP).
  • the bandwidth configuration of RMSI, PDCCH, and CORESET of the NR system is usually 96 PRBs, assuming that the subcarrier spacing is 15KHz, therefore, the bandwidth configuration of the NR system is greater than 10MHz. If the IoT terminal and the NR terminal share the same RMSI, the bandwidth configuration of the IoT terminal is usually less than or equal to 10MHz, which is less than the bandwidth configuration of the NR system. At this time, the IoT terminal cannot read the RMSI of the NR due to bandwidth limitations.
  • the cell cannot be accessed; on the other hand, if the network configures NR's RMSI, PDCCH, and CORESET, taking into account the bandwidth of the IoT terminal, it will limit the network configuration and affect the flexibility of network deployment.
  • one possible way is to deploy a special cell for the IoT terminal, and configure a special RMSI PDCCH CORESET for the IoT terminal, making it smaller than that supported by the IoT terminal. bandwidth.
  • the RMSI PDCCH CORESET specifically configured for IoT terminals may also be acquired by normal non-IoT terminals (such as NR terminals), which will lead to the access of non-IoT devices In the IoT community, it affects the access of IoT devices and data transmission.
  • the embodiments of the present application provide a method for cell access, which can avoid the mutual influence of IoT terminals and non-IoT terminals during cell access.
  • FIG. 3 is a method for cell access provided by an embodiment of the present application.
  • the method in FIG. 3 includes steps S310 to S320.
  • the network device sends a first PBCH to the Internet of Things device, where the first PBCH is a PBCH sent by the network device for the Internet of Things device, where the first PBCH and the second PBCH are at least one of the following aspects
  • the difference is: the scrambling code sequence of the PBCH, the synchronization channel grid for receiving the PBCH, and the second PBCH is the PBCH sent by the network device for the non-IoT device.
  • the Internet of Things device receives the first PBCH sent by the network device.
  • the Internet of Things device in the embodiments of the present application may refer to a terminal device that does not require high transmission rate and/or transmission delay.
  • the Internet of Things device may include an IoT device, or the Internet of Things device may include an MTC device.
  • Non-IoT devices may refer to terminal devices that require relatively high transmission delay and/or transmission rate.
  • non-IoT devices may include enhanced mobile broadband (eMBB) devices, or non-IoT devices may include Ultra-reliable low-latency (ultra reliable low latency communications, URLLC) equipment.
  • eMBB enhanced mobile broadband
  • URLLC Ultra-reliable low-latency communications
  • the first PBCH is the PBCH sent by the network device to the IoT device.
  • the IoT device can access the cell according to the first PBCH, that is, the IoT device can access the cell according to the first PBCH.
  • the first PBCH can be used for the MTC terminal to access the MTC cell.
  • the MTC terminal After receiving the first PBCH, the MTC terminal can access the MTC cell according to the first PBCH.
  • the second PBCH is a PBCH sent by a network device for a non-IoT device, and the second PBCH may be used, for example, for a non-IoT device to access a cell deployed as a non-IoT device.
  • IoT devices and non-IoT devices can be collectively referred to as terminal devices, and the terminal devices described below can refer to IoT devices or non-IoT devices.
  • PBCH is used for terminal equipment to access the cell. It can refer to the resource location where the terminal equipment can obtain system information through PBCH, and then obtain the system information for cell access from the resource location of system information, so as to perform cell access based on the system information .
  • the way that the IoT device obtains the first PBCH is different from the way that the non-IoT device obtains the second PBCH. Therefore, the non-IoT device cannot obtain the first PBCH of the IoT device and therefore cannot According to the first PBCH, access to the cell deployed for the Internet of Things device, so that the Internet of Things device and the non-Internet of Things device can avoid mutual influence during the cell access process.
  • the first PBCH and the second PBCH are different in at least one of the following aspects: the scrambling code sequence of the PBCH, and the synchronization channel grid for transmitting the PBCH.
  • the scrambling code sequence of PBCH can be represented by s i .
  • a 1 , a 2 , ..., a A-1 respectively correspond to different bits, and different bits can be used to indicate different contents.
  • the network device may be scrambling sequence s i of the original load PBCH scrambling sequence a i, to give the load the scrambled sequence a 'i, and the load terminal transmits the scrambled sequence a' i; terminal device receives After the load sequence a′ i sent by the network device, the scrambling code sequence si can be used to descramble the load sequence a′ i to obtain the original load sequence a i .
  • the present application embodiment for scrambling the first and the PBCH s i s i for scrambling the second PBCH may be different, so, non-networked device was first PBCH can not be acquired for the things device, whereby It can avoid the mutual influence of non-IoT devices and IoT devices in the cell access process.
  • a′ i can be determined by the following formula 1.
  • mod represents modulo operation.
  • Formula 1 is only an example, and a′ i can also be determined by other formulas.
  • the embodiment of the present application does not specifically limit the generation manner of the scrambling code sequence si .
  • the scrambling code sequence si may be determined according to the gold sequence c(n), and c(n) may be determined by the following formula 2, for example.
  • x 1 (n+31) (x 1 (n+3)+x 1 (n))mod 2
  • x 2 (n+31) (x 2 (n+3)+x 2 (n+2)+x 2 (n+1)+x 2 (n))mod 2
  • N c is a fixed value, and N c may be 1600, for example.
  • the initial value C init of x 2 (n) can be equal to Indicates the identity (ID) number of the cell, that is, when n is an integer less than or equal to 30, the values of x 2 (n) are all the same, which is a fixed value.
  • the value of C init may be related to the cell where the terminal device is located. For example, the value of C init is equal to the ID number of the cell where the terminal device is located. If the location of the terminal device is determined, the value of C init is already fixed. Currently, the cell ID number of a non-IoT device is an integer from 0 to 1023, and the value of C init can be any integer from 0 to 1023.
  • the scrambling code sequence s i can be obtained by different operations according to the gold sequence c(n), or the scrambling code sequence si can be obtained by using the same gold sequence c(n). It is calculated, but the value of the gold sequence c(n) is different.
  • the scrambling code sequence s i is generated by the following formula 3.
  • n i+m
  • s 0 c(0+m)
  • s 1 c(1+m)
  • s A-1 c(A-1+m)
  • the value of m can be different, so that the value of c(i+m) obtained will be different, and the scrambling code sequence si will also be different.
  • the value of m can be the same, but the initial value of the gold sequence c(n) is different, so that the obtained scrambling code sequence s i will also be different.
  • the value of m and the initial value of the gold sequence c(n) are different, and the obtained scrambling code sequence s i will also be different.
  • the PBCH of the first scrambling sequence s i PBCH and the second scrambling sequence s i are generated by Equation 3, but with different values of m, so that by scrambling sequence s i Equation 2 to obtain Will be different.
  • the value of m can be determined according to v, and v is determined according to the second and third least significant bits (LSB) of the system frame number SFN carried by the PBCH.
  • LSB least significant bits
  • the rightmost bit in the SFN bit sequence is the least important bit, and the leftmost bit is the most important bit. From left to right, the degree of importance decreases in order. Therefore, the second and third bits counted from right to left can be understood as the second and third least important bits mentioned in the embodiment of this application.
  • the value of v determined for the first PBCH is different from the value of v determined for the second PBCH.
  • Table 2 and Table 3 respectively show two cases of the value of v.
  • the v value of the second PBCH for the non-IoT device is obtained from Table 2.
  • the embodiment of the present application can determine the v value of the first PBCH for the IoT device through Table 3. In this way, through different v values , Get different values of gold sequence c(n), and get different scrambling code sequence s i .
  • Table 3 is only an example, and the value of v for the first PBCH is not limited to the value of Table 3, as long as the obtained value of v is different for the same bit position.
  • the minimum value of the values of v adopted by the scrambling code sequence si of the first PBCH is greater than the maximum value of the values of v adopted by the scrambling code sequence s i of the second PBCH. If the value of v for the second PBCH is obtained from Table 2, that is, the value of v for the second PBCH is an integer less than 3, as long as the value of v for the first PBCH is all greater than 3.
  • the value of v for the first PBCH may also be obtained from Table 4.
  • the value of v for the second PBCH is determined by Table 2, even if it faces the same SFN bit, the obtained value of v is different.
  • the second and third least important bits of SFN are both (0, 0)
  • the value of v obtained for the first PBCH is 3
  • the value of v obtained for the second PBCH is 0, so that the value of v obtained for the first PBCH is 0.
  • the scrambling code sequence si obtained by the second PBCH it can prevent the non-IoT device from accessing the cell of the IoT device.
  • v for the first PBCH is not limited to the forms in Table 3 and Table 4, and may also be in other forms, which is not specifically limited in the embodiment of the present application.
  • the initial values of the gold sequence c(n) are all different. It can be seen from formula 2 that the initial value of c(n) is related to the initial values of x 1 (n) and x 2 (n), so different x 1 (n) and x 1 (n) and non-IoT devices can be defined respectively The initial value of x 2 (n).
  • the value range of the initial value C init used for the scrambling code sequence si of the first PBCH is the same as the scrambling code for the second PBCH
  • the initial value C init adopted by the sequence si has a different value range.
  • the minimum value of the initial value C init adopted by the scrambling code sequence s i of the first PBCH is greater than the maximum value of the initial value C init adopted by the scrambling code sequence si of the second PBCH, so that regardless of why the first PBCH C init values are not the same for the first C init for C init second PBCH PBCH, it is possible to avoid non-access devices linked to a cell was things device.
  • the minimum value in the initial value C init adopted by the scrambling code sequence si of the first PBCH represents the minimum value among all the values of C init that can be used for the first PBCH, and the scrambling code of the second PBCH
  • the maximum value of the initial value C init adopted by the sequence si may represent the maximum value of all the values of C init that can be used for the second PBCH.
  • the initial value of x 2 (n) is C init , Indicates the identity (ID) of the cell.
  • the cell ID of non-IoT devices ranges from 0 to 1023, and the initial value of x 2 (n) for IoT devices can be C init greater than 1023, that is, the first PBCH scrambling code sequence s i
  • the initial value C init used is greater than or equal to 1024.
  • the values of m used for the first PBCH and for the second PBCH are different.
  • the value of m used in the scrambling code sequence s i of the first PBCH is obtained by adding a first offset to the value of m used in the scrambling code sequence s i of the second PBCH .
  • the first offset may be an integer greater than 0. As long as the first offset is greater than 0, the scrambling sequence s i obtained from the gold sequence c(n) will be different.
  • the first offset may be greater than or equal to the maximum value of m for the second PBCH, so the minimum value of m for the first PBCH is also greater than the value of m for the second PBCH.
  • the maximum value among the values, so that the scrambling code sequence s i obtained by m is different.
  • M is determined according to the length A of the load sequence of the PBCH.
  • the scrambling code sequence s i for the second PBCH is obtained according to formula 4, then the scrambling code sequence s i for the first PBCH can be obtained by the following formula 5.
  • X can represent the first offset.
  • the value of X may be predefined, and the value of X may be an integer greater than or equal to 96, for example.
  • the length of the PBCH load sequence is less than or equal to 24, so A ⁇ 24, so the maximum value of i is 24; for the second PBCH, the maximum value of v is 3, and the maximum value of M is 24. Therefore, the maximum value of n in the obtained gold sequence c(n) is 96. Therefore, the value of the first offset X for the first PBCH may be greater than or equal to 96, so that the scrambling code sequence s i obtained by formula 4 and formula 5 are different.
  • the original load sequence of PBCH is a 0 ,a 1 ,...,a A-1
  • the sequence scrambled by the scrambling code sequence s i is a′ 0 ,a′ 1 ,...,a′ A-1
  • A represents the length of the load sequence of the PBCH.
  • the scrambling code sequence s 0 ,s 1 ,...,s A-1 can be generated by the following script formula:
  • a i corresponds to the SSB index, the half frame index or the second and third least important bits of SFN:
  • c(n) is the gold sequence, and the value of c(n) can be obtained by formula 2.
  • N c 1600
  • initial value x 1 (0) 0
  • x 1 (n) 0
  • n 1, 2,...,30.
  • the initial value C init of x 2 (n) can be equal to Indicates the identity (ID) number of the cell.
  • v can be determined based on the second and third least important bits of the SFN carried by the PBCH. As shown in Table 2 to Table 4 above.
  • the difference between the scrambling code sequence s i of the first PBCH and the second PBCH can be reflected in the following aspects:
  • the initial value of x 2 (n) is different.
  • the initial value of x 2 (n) of the first PDCH can be obtained by adding an offset to the initial value of x 2 (n) of the second PBCH.
  • the offset can be predefined. For example, an integer greater than or equal to 1024.
  • the gold sequence c(n) is different.
  • the scrambling code sequence si of the second PBCH is generated by the gold sequence c(n) of formula 4
  • the scrambling code sequence si of the first PBCH is generated by the gold sequence c(n) of formula 5.
  • the offset X is predefined, and the offset X may be an integer greater than or equal to 96, for example.
  • the value of v in formula 4 is different.
  • the value of v determined according to the first PBCH is different from the value of v determined according to the second PBCH.
  • the v value for the second PBCH is generated through Table 2
  • the v value for the first PBCH is generated through Table 3 or Table 4.
  • non-IoT devices In order to prevent non-IoT devices from accessing the cell of the IoT device by searching for the SSB transmitted by the IoT device, another possible way is that this is very different from the synchronization channel raster of the SSB sent by the IoT device. Based on the synchronization channel grid of non-IoT devices, non-IoT devices will not be able to search for the SSB sent for IoT devices, and thus will not access the community of IoT devices.
  • the transmission SSB synchronization channel grid can be understood as the frequency position of the transmission SSB. Since the SSB includes the PBCH, the synchronization channel grid for transmitting the PBCH in the embodiment of the present application can be understood as the synchronization channel grid for transmitting the SSB.
  • the synchronization channel grid for transmitting PBCH may refer to the synchronization channel grid for sending PBCH; for terminal equipment, the synchronization channel grid for transmitting PBCH may refer to the synchronization channel grid for receiving PBCH.
  • the frequency range that the device can search when receiving the second PBCH does not include the synchronization channel grid of the first PBCH received by the Internet of Things device.
  • the frequency interval between the synchronization channel grid for sending the first PBCH by the network device and the synchronization channel grid for sending the second PBCH by the network device, and the frequency interval allows the non-IoT device to receive
  • the frequency range that can be searched in the second PBCH does not include the synchronization channel grid of the first PBCH received by the Internet of Things device.
  • an additional offset can be added to the calculation formula of Syncraster of existing non-IoT devices, so that there is sufficient frequency between Syncraster used by IoT devices and Syncraster used by existing non-IoT devices The interval (for example, greater than the maximum frequency deviation allowed for SSB detection), so that other non-IoT devices will not search for the SSB sent for the IoT device terminal, and therefore will not access the cell of the IoT device.
  • the synchronization channel grid through which the first PBCH is received by the Internet of Things device is located in the middle of two adjacent synchronization channel grids where the non-IoT device receives the second PBCH.
  • the synchronization channel grid for sending the first PBCH by the network device is located in the middle of two adjacent synchronization channel grids for sending the second PBCH by the network device.
  • Table 5 shows the calculation method of the synchronization channel grid of non-IoT devices.
  • GSCN may represent a global synchronization channel number (global synchronization channel number, GSCN).
  • N When the frequency range is between 0-3000 MHz, N can be any integer between 1 and 2499, and M can be any value among 1, 3, and 5.
  • N can be any integer between 0-14756.
  • Table 6 shows a calculation method for a synchronization channel grid of an Internet of Things device provided in an embodiment of the present application.
  • N When the frequency range is between 0-3000 MHz, N can be any integer between 1 and 2499, and M can be any value among 1, 3, and 5.
  • N can be any integer between 0-14756.
  • the frequency position of the SSB in Table 6 is in the middle of the frequency position of two consecutive SSBs in Table 5. In this way, there is a sufficient frequency interval between the frequency position of the SSB of the IoT device and the frequency position of the SSB of the non-IoT device, so that the non-IoT device cannot search for the SSB for the IoT device, and thus cannot access the target device.
  • FIG. 4 is another method for cell access provided by an embodiment of the present application, and the method includes steps S410 to S420.
  • the network device sends the first system information to the terminal device.
  • S420 The terminal device receives the first system information sent by the network device.
  • the first system information is the system information sent by the network device for the Internet of Things device, and is used to scramble and schedule the system information of the physical downlink control channel PDCCH of the first system information.
  • network tempory identity, SI-RNTI which is different from the SI-RNTI used to scramble and schedule the PDCCH of the second system information.
  • the second system information is system information sent by the network device to the non-IoT device.
  • the system information may include the public parameters of the cell configuration.
  • the first system information can be used by the IoT device to obtain the public parameters of the cell configuration of the IoT device, and then the IoT device can access the cell of the IoT device according to the first system information ;
  • the second system information can be used for non-IoT devices to obtain public parameters of the cell configuration of the non-IoT device, and then the non-IoT devices can access the cell of the non-IoT device based on the second system information.
  • the SSB includes the PBCH.
  • the PBCH can be used to indicate the PDCCH CORESET of the system information.
  • the terminal device can obtain the system information from the PDCCH CORESET, and then use the system information Access to the cell.
  • the PDCCH used for scheduling system information can be scrambled through SI-RNTI.
  • the embodiment of this application is aimed at IoT devices and can adopt a dedicated SI-RNTI, which is different from the SI used by non-IoT devices to scramble the PDCCH. -RNTI.
  • IoT devices can read the system information broadcast for IoT devices through the dedicated SI-RNTI, but other non-IoT devices even correctly read the PBCH sent for IoT devices, and read the targeted information based on the PBCH instructions.
  • PDCCH CORESET of Internet of Things devices because the PDCCH used for scheduling system information for Internet of Things devices is scrambled by a dedicated SI-RNTI, non-Internet of Things devices cannot correctly read the system information for Internet of Things devices, and therefore cannot be accessed. Enter the community for the deployment of IoT devices.
  • FIG. 5 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device may be any terminal device described above, and the terminal device may be, for example, the Internet of Things device described above.
  • the terminal device 500 of FIG. 5 includes a communication unit 510, wherein:
  • the communication unit 510 is configured to receive a first physical broadcast channel PBCH, where the first PBCH is a PBCH sent by a network device for the Internet of Things device, wherein the first PBCH and the second PBCH are at least one of the following aspects There are differences in the following: the scrambling code sequence of the PBCH, the synchronization channel grid for receiving the PBCH, and the second PBCH is the PBCH sent by the network device for non-IoT devices.
  • the length of the load sequence is different from c(i+m) of the first PBCH and c(i+m) of the second PBCH, and m is an integer.
  • the value of m in c(i+m) is determined according to v, and v is determined according to the second and third least important bits of the system frame number SFN carried by the PBCH, The v value determined for the second and third least important bits of the SFN carried by the first PBCH and the second and third least important bits for the SFN carried by the second PBCH are determined The value of v is different.
  • the value of v determined for the first PBCH is different from the value of v determined for the second PBCH.
  • the minimum value of the values of v adopted by the scrambling code sequence s i of the first PBCH is greater than the maximum value of the values of v adopted by the scrambling code sequence s i of the second PBCH.
  • c(i+m) is determined based on the following formula:
  • x 1 (n+31) (x 1 (n+3)+x 1 (n))mod 2
  • x 2 (n+31) (x 2 (n+3)+x 2 (n+2)+x 2 (n+1)+x 2 (n))mod 2
  • x 1 (0) 0
  • the initial value of n) is C init
  • the value of x 2 (n) when n is less than or equal to 30 is C init
  • the initial value C init adopted by the scrambling code sequence is different.
  • the minimum value of the initial value C init adopted by the scrambling code sequence s i of the first PBCH is greater than the maximum value of the initial value C init adopted by the scrambling code sequence s i of the second PBCH.
  • the initial value The value of is the identification ID number of the cell, the initial value C init adopted by the scrambling code sequence si of the first PBCH is greater than or equal to 1024, and the initial value C init adopted by the scrambling code sequence si of the second PBCH is less than Or equal to 1023.
  • the value of m used in the scrambling code sequence s i of the first PBCH is to increase the first offset on the basis of the value of m used in the scrambling code sequence s i of the second PBCH owned.
  • the first offset is an integer greater than or equal to 96.
  • the frequency interval is such that The frequency range that the non-IoT device can search when receiving the second PBCH does not include the synchronization channel grid of the first PBCH received by the IoT device.
  • the synchronization channel grid through which the first PBCH is received by the Internet of Things device is located in the middle of two adjacent synchronization channel grids where the non-IoT device receives the second PBCH.
  • Fig. 6 is a schematic block diagram of another terminal device provided by an embodiment of the present application.
  • the terminal device may be any terminal device described above, and the terminal device may be, for example, the Internet of Things device described above.
  • the terminal device 600 in FIG. 6 includes a communication unit 610, wherein:
  • the communication unit 610 is configured to receive first system information, where the first system information is system information sent by a network device to the Internet of Things device, and is used to scramble and schedule the physical downlink control channel PDCCH of the first system information
  • the system information radio network temporary identifier SI-RNTI is different from the SI-RNTI used to scramble and schedule the PDCCH of the second system information
  • the second system information is system information sent by the network device for non-IoT devices.
  • Fig. 7 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • the network device may be any of the network devices described above.
  • the network device 700 in FIG. 7 includes a communication unit 710, wherein:
  • the communication unit 710 is configured to send a first physical broadcast channel PBCH, where the first PBCH is a PBCH sent by the network device for the Internet of Things device, where the first PBCH and the second PBCH are in the following aspects At least one is different: the scrambling code sequence of the PBCH, the synchronization channel grid for sending the PBCH, and the second PBCH is the PBCH sent by the network device for the non-IoT device.
  • the length of the load sequence, c(i+m) of the first PBCH and c(i+m) of the second PBCH are different, and m is a positive integer.
  • the value of m in c(i+m) is determined according to v, and v is determined according to the second and third least important bits of the system frame number SFN carried by the PBCH, The v value determined for the second and third least important bits of the SFN carried by the first PBCH and the second and third least important bits for the SFN carried by the second PBCH are determined The value of v is different.
  • the value of v determined for the first PBCH is different from the value of v determined for the second PBCH.
  • the minimum value of the values of v adopted by the scrambling code sequence s i of the first PBCH is greater than the maximum value of the values of v adopted by the scrambling code sequence s i of the second PBCH.
  • c(i+m) is determined based on the following formula:
  • x 1 (n+31) (x 1 (n+3)+x 1 (n))mod 2
  • x 2 (n+31) (x 2 (n+3)+x 2 (n+2)+x 2 (n+1)+x 2 (n))mod 2
  • x 1 (0) 0
  • the initial value of n) is C init
  • the value of x 2 (n) when n is less than or equal to 30 is C init
  • the initial value C init adopted by the scrambling code sequence is different.
  • the minimum value of the initial value C init adopted by the scrambling code sequence s i of the first PBCH is greater than the maximum value of the initial value C init adopted by the scrambling code sequence s i of the second PBCH.
  • the initial value The value of is the identification ID number of the cell, the initial value C init adopted by the scrambling code sequence si of the first PBCH is greater than or equal to 1024, and the initial value C init adopted by the scrambling code sequence si of the second PBCH is less than Or equal to 1023.
  • the value of m used in the scrambling code sequence s i of the first PBCH is to increase the first offset on the basis of the value of m used in the scrambling code sequence s i of the second PBCH owned.
  • the first offset is an integer greater than or equal to 96.
  • the frequency interval makes the non-physical The frequency range that the networked device can search when receiving the second PBCH does not include the synchronization channel grid of the first PBCH received by the IoT device.
  • the synchronization channel grid for sending the first PBCH by the network device is located in the middle of two adjacent synchronization channel grids for sending the second PBCH by the network device.
  • FIG. 8 is a schematic block diagram of another network device provided by an embodiment of the present application.
  • the network device may be any of the network devices described above.
  • the network device 800 in FIG. 8 includes a communication unit 810, where:
  • the communication unit 810 is configured to send first system information, where the first system information is system information sent by a network device for an Internet of Things device, and is used to scramble and schedule the system information of the physical downlink control channel PDCCH of the first system information
  • the wireless network temporary identifier SI-RNTI is different from the SI-RNTI used to scramble and schedule the PDCCH of the second system information
  • the second system information is system information sent by the network device for non-IoT devices.
  • FIG. 9 is a schematic structural diagram of a communication device 900 provided by an embodiment of the present application.
  • the communication device 900 shown in FIG. 9 includes a processor 910, and the processor 910 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the communication device 900 may further include a memory 920.
  • the processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present application.
  • the memory 920 may be a separate device independent of the processor 910, or may be integrated in the processor 910.
  • the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 930 may include a transmitter and a receiver.
  • the transceiver 930 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 900 may specifically be a network device of an embodiment of the application, and the communication device 900 may implement the corresponding process implemented by the network device in each method of the embodiment of the application. For brevity, details are not repeated here .
  • the communication device 900 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 900 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, specifically
  • the communication device 900 can implement the corresponding processes implemented by the first terminal device and/or the second terminal device in each method in the embodiments of the present application, and for the sake of brevity, details are not described herein again.
  • Fig. 10 is a schematic structural diagram of a device according to an embodiment of the present application.
  • the apparatus 1000 shown in FIG. 10 includes a processor 1010, and the processor 1010 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the device 1000 may further include a memory 1020.
  • the processor 1010 can call and run a computer program from the memory 1020 to implement the method in the embodiment of the present application.
  • the memory 1020 may be a separate device independent of the processor 1010, or it may be integrated in the processor 1010.
  • the device 1000 may further include an input interface 1030.
  • the processor 1010 can control the input interface 1030 to communicate with other devices or devices, and specifically, can obtain information or data sent by other devices or devices.
  • the device 1000 may further include an output interface 1040.
  • the processor 1010 can control the output interface 1040 to communicate with other devices or devices, specifically, can output information or data to other devices or devices.
  • the device can be applied to the network equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application.
  • the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application.
  • details are not described herein again.
  • the device can be applied to the mobile terminal/terminal device in the embodiment of this application, and the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application.
  • the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application.
  • the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application.
  • the device mentioned in the embodiments of the present application may be a chip, and the chip may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-chip.
  • FIG. 11 is a schematic block diagram of a communication system 1100 according to an embodiment of the present application. As shown in FIG. 11, the communication system 1100 includes a terminal device 1110 and a network device 1120.
  • the terminal device 1110 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 1120 can be used to implement the corresponding function implemented by the network device in the above method. For brevity, it will not be repeated here. .
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • Synchlink DRAM SLDRAM
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application For the sake of brevity, I won’t repeat it here.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For brevity, I won't repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • I won’t repeat it here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method 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, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application 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 method described in each embodiment 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 disk and other media that can store program code .

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Abstract

本申请提供了一种用于小区接入的方法及设备,能够避免物联网设备和非物联网设备接入小区的相互影响。该方法包括:物联网设备接收第一物理广播信道PBCH,所述第一PBCH是网络设备针对所述物联网设备发送的PBCH,其中,所述第一PBCH与第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、接收PBCH的同步信道栅格,所述第二PBCH是所述网络设备针对非物联网设备发送的PBCH。

Description

用于小区接入的方法及设备 技术领域
本申请涉及通信领域,并且更具体地,涉及一种用于用于小区接入的方法及设备。
背景技术
物联网设备具有成本较低,价格便宜、支持超低功耗、支持深广大覆盖场景等技术等优势。物联网设备可以支持一些低数据传输速率、高传输时延的应用,例如,物联网设备可以支持10MHz、100Mbps的传输速率,但是,目前NR的带宽配置通常是大于10MHz的,由于物联网设备与NR设备能够支持的带宽不同,那么如何控制物联网设备接入小区称为亟需解决的问题。
发明内容
本申请提供一种用于小区接入的方法及设备,能够避免物联网设备和非物联网设备接入小区的相互影响。
第一方面,提供了一种用于小区接入的方法,包括:物联网设备接收第一物理广播信道PBCH,所述第一PBCH是网络设备针对所述物联网设备发送的PBCH,其中,所述第一PBCH与第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、接收PBCH的同步信道栅格,所述第二PBCH是所述网络设备针对非物联网设备发送的PBCH。
第二方面,提供了一种用于小区接入的方法,包括:物联网设备接收第一系统信息,所述第一系统信息是网络设备针对所述物联网设备发送的系统信息,用于加扰调度所述第一系统信息的物理下行控制信道PDCCH的系统信息无线网络临时标识SI-RNTI,与用于加扰调度第二系统信息的PDCCH的SI-RNTI不同,所述第二系统信息是所述网络设备针对非物联网设备发送的系统信息。
第三方面,提供了一种用于小区接入的方法,包括:网络设备发送第一物理广播信道PBCH,所述第一PBCH是所述网络设备针对所述物联网设备发送的PBCH,其中,所述第一PBCH与第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、发送PBCH的同步信道栅格,所述第二PBCH是所述网络设备针对非物联网设备发送的PBCH。
第四方面,提供了一种用于小区接入的方法,包括:网络设备发送第一系统信息,所述第一系统信息是网络设备针对物联网设备发送的系统信息,用于加扰调度所述第一系统信息的物理下行控制信道PDCCH的系统信息无线网络临时标识SI-RNTI,与用于加扰调度第二系统信息的PDCCH的SI-RNTI不同,所述第二系统信息是所述网络设备针对非物联网设备发送的系统信息。
第五方面,提供了一种终端设备,用于执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
具体地,该终端设备包括用于执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法的功能模块。
第六方面,提供了一种网络设备,用于执行上述第三方面至第四方面中的任一方面或其各实现方式中的方法。
具体地,该网络设备包括用于执行上述第三方面至第四方面中的任一方面或其各实现方式中的方法的功能模块。
第七方面,提供了一种终端设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第八方面,提供了一种网络设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第三方面至第四方 面中的任一方面或其各实现方式中的方法。
第九方面,提供了一种装置,用于实现上述第一方面至第四方面中的任一方面或其各实现方式中的方法。
具体地,该装置包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该装置的设备执行如上述第一方面至第四方面中的任一方面或其各实现方式中的方法。
第十方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面至第四方面中的任一方面或其各实现方式中的方法。
第十一方面,提供了一种计算机程序产品,包括计算机程序指令,所述计算机程序指令使得计算机执行上述第一方面至第四方面中的任一方面或其各实现方式中的方法。
第十二方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面至第四方面中的任一方面或其各实现方式中的方法。
本申请提供的技术方案,针对物联网设备的第一PBCH和针对非物联网设备的第二PBCH的扰码序列和/或传输的同步信道栅格不同,由于PBCH可用于小区接入,因此,PBCH不同,能够避免物联网设备和非物联网设备接入小区的相互影响。
另外,对物联网设备而言,用于调度第一系统信息的PDCCH的SI-RNTI,与用于调度非物联网设备的第二系统信息的PDCCH的SI-RNTI,这样非物联网设备就无法读取到针对物联网设备的第一系统信息,从而无法接入到物联网设备的小区,能够避免物联网设备和非物联网设备接入小区的相互影响。
附图说明
图1是本申请实施例应用的无线通信系统的示意图。
图2是本申请实施例提供的PDCCH CORESET的示意图。
图3是本申请实施例提供的一种用于小区接入的方法的示意性流程图。
图4是本申请实施例提供的另一种用于小区接入的方法的示意性流程图。
图5是本申请实施例提供的一种终端设备的示意性框图。
图6是本申请实施例提供的另一种终端设备的示意性框图。
图7是本申请实施例提供的一种网络设备的示意性框图。
图8是本申请实施例提供的另一种网络设备的示意性框图。
图9是本申请实施例的通信设备的示意性结构图。
图10是本申请实施例的通信装置的示意性结构图。
图11是本申请实施例的通信系统的示意性框图。
具体实施方式
图1是本申请实施例的系统100的示意图。
如图1所示,终端设备110与第一通信系统下的第一网络设备130和第二通信系统下的第二网络设备120相连,例如,该第一网络设备130为长期演进(Long Term Evolution,LTE)下的网络设备,该第二网络设备120为新空口(New Radio,NR)下的网络设备。
其中,该第一网络设备130和该第二网络设备120下可以包括多个小区。
应理解,图1是本申请实施例的通信系统的示例,本申请实施例不限于图1所示。
作为一个示例,本申请实施例适应的通信系统可以包括至少该第一通信系统下的多个网络设备和/或该第二通信系统下的多个网络设备。
例如,图1所示的系统100可以包括第一通信系统下的一个主网络设备和第二通信系统下的至少一个辅助网络设备。至少一个辅助网络设备分别与该一个主网络设备相连,构成多连接,并分别与终端设备110连接为其提供服务。具体地,终端设备110可以通过主网络设备和辅助网络设备同时建立连接。
可选地,终端设备110和主网络设备建立的连接为主连接,终端设备110与辅助网络 设备建立的连接为辅连接。终端设备110的控制信令可以通过主连接进行传输,而终端设备110的数据可以通过主连接以及辅连接同时进行传输,也可以只通过辅连接进行传输。
作为又一示例,本申请实施例中的第一通信系统和第二通信系统不同,但对第一通信系统和该第二通信系统的具体类别不作限定。
例如,该第一通信系统和该第二通信系统可以是各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)等。
所述主网络设备和所述辅助网络设备可以为任意接入网设备。
可选地,在一些实施例中,所述接入网设备可以是全球移动通讯(Global System of Mobile communication,GSM)系统或码分多址(Code Division Multiple Access,CDMA)中的基站(Base Transceiver Station,BTS),也可以是宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统中的基站(NodeB,NB),还可以是长期演进(Long Term Evolution,LTE)系统中的演进型基站(Evolutional Node B,eNB或eNodeB)。
可选地,所述接入网设备还可以是下一代无线接入网(Next Generation Radio Access Network,NG RAN),或者是NR系统中的基站(gNB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该接入网设备可以为中继站、接入点、车载设备、可穿戴设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。
在图1所示的系统100中,以该第一网络设备130为主网络设备,以该第二网络设备120为辅助网络设备为例。
该第一网络设备130可以为LTE网络设备,该第二网络设备120可以为NR网络设备。或者该第一网络设备130可以为NR网络设备,第二网络设备120可以为LTE网络设备。或者该第一网络设备130和该第二网络设备120都可以为NR网络设备。或者该第一网络设备130可以为GSM网络设备,CDMA网络设备等,该第二网络设备120也可以为GSM网络设备,CDMA网络设备等。或者第一网络设备130可以是宏基站(Macrocell),第二网络设备120可以为微蜂窝基站(Microcell)、微微蜂窝基站(Picocell)或者毫微微蜂窝基站(Femtocell)等。
可选地,所述终端设备110可以是任意终端设备,所述终端设备110包括但不限于:
经由有线线路连接,如经由公共交换电话网络(Public Switched Telephone Networks,PSTN)、数字用户线路(Digital Subscriber Line,DSL)、数字电缆、直接电缆连接;和/或另一数据连接/网络;和/或经由无线接口,如,针对蜂窝网络、无线局域网(Wireless Local Area Network,WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器;和/或另一终端设备的被设置成接收/发送通信信号的装置;和/或物联网(Internet of Things,IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话;可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System,PCS)终端;可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System,GPS)接收器的PDA;以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol, SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。
在无线通信技术的不断演进与助力下,物联网(internet of things,IoT)技术飞速发展。如第三代合作伙伴计划(3rd generation partnership project,3GPP)组织推动发展的机器类型通信(machine type communication,MTC)/增强型MTC(enhance MTC,eMTC)、IoT系列标准成为5G massive MTC技术的候选技术标准。这些技术标准有望在智能家居,智慧城市,智慧工厂、远程监测、智慧交通等人们生产与生活的方方面面发挥巨大作用。
物联网终端具有成本较低、价格便宜、支持超低功耗、支持深广大覆盖场景等优势,这些有利于物联网技术的发展初期的快速普及。然而,这些设备具有一些应用场景的限制,由于MTC/eMTC设备、IoT设备的设计目标是支持一些低数据速率、较高传输时延的应用,对于一些需要具有相对较高速率的物联网场景,例如智能安防中的视频监控、要求相对较低时延的工业应用中,则无法应用。而如果直接采用具有高传输速率、低传输时延的终端设备,则远超过这些场景的实际需求,增加了不必要的成本。因此提出了一种支持中等传输速率、中等时延要求、中低带宽大小的物联网类型的设备,例如可以支持10MHz带宽、100Mbps的传输速率。
本申请实施例提及的终端设备可以包括物联网设备,也可以包括非物联网设备。例如,图1所示的终端设备可以包括物联网设备,也可以包括非物联网设备。
本申请实施例中的物联网设备相对非物联网设备而言,可以具有以下特点中的一种或多种:1)较窄的带宽;2)较少的天线数目;3)支持较低的数据传输速率;4)较低的最大发射功率。
终端设备在接入小区时,需要检测同步信号块(synchronizing signal/PBCH block,SSB、SS Block或SS/PBCH block)。SSB中例如可以包括主同步信号(primary synchronization signal,PSS)、辅同步信号(secondary synchronization signal,SSS)和物理广播信道(physical broadcast channel,PBCH)。
其中,PBCH可以用于指示物理下行控制信道(physical downlink control channel,PDCCH)控制资源集(control resourese set,CORESET)的配置信息,终端设备设备可以在该PDCCH CORESET中获取剩余最小系统信息(remaining minimum system information,RMSI),终端设备可以根据RMSI中的信息进行小区接入。
以NR系统为例,当采用15kHz的子载波间隔时,该PDCCH CORESET可以配置为24、48、96个物理资源块(physical resource block,PRB)。如表1所示,表1示出了PBCH配置RMSI PDCCH CORESET的一个示例。
表1
Figure PCTCN2019092787-appb-000001
Figure PCTCN2019092787-appb-000002
RB表示资源块(resource block,RB)。
以索引号为1为例,索引号为1时,SSB和CORESET复用模式为模式1,PDCCH CORESET所占用的RB的数量为24个,PDCCH CORESET所占用的符号数量为2个,RB的偏移量为2,也就是说,PDCCH CORESET的资源位置偏移2个RB。
本申请实施例中的非物联网设备可以包括NR终端。
参见图2,NR中的初始激活下行带宽部分(initial active downlink bandwidth part,initial active DL BWP)的子载波间隔、占用带宽的大小以及频段位置与上述PDCCH CORESET一致。终端设备的初始接入过程所需要的系统消息例如RMSI、系统信息块(system information block,SIB)、寻呼(paging)消息、随机接入响应(random access response,RAR)消息等的传输都需要在该带宽部分(bandwidth part,BWP)中进行。
目前,NR系统的RMSI PDCCH CORESET的带宽配置通常为96个PRB,假设子载波间隔为15KHz,因此,NR系统的带宽配置是大于10MHz的。如果物联网终端和NR终端共用一个RMSI,则由于物联网终端的带宽配置通常小于或等于10MHz,小于NR系统的带宽配置,则此时物联网终端由于带宽的限制不能读取到NR的RMSI,从而不能接入到小区;另一方面,如果网络配置NR的RMSI PDCCH CORESET时兼顾物联网终端的带宽,则对网络的配置带来限制,影响网络部署的灵活性。
因此,为了使得物联网终端的初始接入过程的顺利进行,一种可能的方式是为物联网终端部署专门的小区,针对物联网终端配置专门的RMSI PDCCH CORESET,使得其小于物联网终端支持的带宽。
但是,如果针对物联网终端配置专门的RMSI PDCCH CORESET,则针对物联网终端专门配置的RMSI PDCCH CORESET也有可能被正常的非物联网终端(如NR终端)获取到,进而导致非物联网设备接入物联网小区中,影响物联网设备的接入以及数据传输。
因此,本申请实施例提供一种用于小区接入的方法,能够避免物联网终端和非物联网终端在小区接入时相互影响。
图3是本申请实施例提供的一种用于小区接入的方法,图3的方法包括步骤S310~S320。
S310、网络设备向物联网设备发送第一PBCH,所述第一PBCH是网络设备针对所述物联网设备发送的PBCH,其中,所述第一PBCH与第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、接收PBCH的同步信道栅格,所述第二PBCH是所述网络设备针对非物联网设备发送的PBCH。
S320、物联网设备接收网络设备发送的第一PBCH。
本申请实施例中的物联网设备可以指对传输速率和/或传输时延要求不高的终端设备,例如,该物联网设备可以包括IoT设备,或者该物联网设备可以包括MTC设备。
非物联网设备可以指对传输时延和/或传输速率要求比较高的终端设备,例如,非物联网设备可以包括增强移动宽带(enhanced mobile broadband,eMBB)设备,或者,非物联网设备可以包括超可靠低时延(ultra reliable low latency communications,URLLC)设备。
第一PBCH是网络设备针对物联网设备发送的PBCH,物联网设备例如接收到第一PBCH后,可以根据第一PBCH接入到小区,也就是说,物联网设备可以根据第一PBCH 接入针对物联网设备部署的小区。例如,第一PBCH可用于MTC终端接入MTC小区,MTC终端接收到第一PBCH后,可以根据第一PBCH接入到MTC小区。
第二PBCH是网络设备针对非物联网设备发送的PBCH,第二PBCH例如可用于非物联网设备接入为非物联网设备部署的小区。
物联网设备和非物联网设备可以统称为终端设备,下文中描述的终端设备可以指物联网设备,也可以指非物联网设备。
PBCH用于终端设备接入小区,可以指终端设备可以通过PBCH获取系统信息的资源位置,然后从系统信息的资源位置上获取用于小区接入的系统信息,从而根据系统信息,进行小区接入。
本申请实施例中,物联网设备获取第一PBCH的方式与非物联网设备获取第二PBCH的方式不同,因此,非物联网设备就无法获取到物联网设备的第一PBCH,从而也就不能根据第一PBCH接入到针对物联网设备部署的小区,这样就能够避免物联网设备和非物联网设备在小区接入过程中相互影响。
第一PBCH和第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、传输PBCH的同步信道栅格。
PBCH的扰码序列可以用s i来表示,假设PBCH的原始比特序列为a i,经过加扰后的比特序列为a′ i,换句话说,a′ i可以是根据a i和s i确定的,其中,i=0,1,2,…,A-1,A为PBCH的比特序列的长度。a 1、a 2、…、a A-1分别对应不同的比特位,不同的比特位可用于指示不同的内容。
网络设备可以根据扰码序列s i对PBCH的原始负载序列a i进行加扰,得到加扰后的负载序列a′ i,并向终端设备发送加扰后的负载序列a′ i;终端设备接收到网络设备发送的负载序列a′ i后,可以使用扰码序列s i对负载序列a′ i进行解扰,得到原始负载序列a i
本申请实施例中,用于加扰第一PBCH的s i与用于加扰第二PBCH的s i可以不同,这样,非物联网设备就无法获取到针对物联网设备的第一PBCH,从而能够避免非物联网设备和物联网设备在小区接入过程中的相互影响。
本申请实施例对根据a i和s i确定a′ i的方式不做具体限定。例如,可以通过如下公式1确定a′ i
a' i=(a i+s i)mod 2          公式1
其中,mod表示取模操作。公式1仅是一种示例,a′ i也可以通过其他的公式来确定。
本申请实施例对扰码序列s i的生成方式不做具体限定。例如,扰码序列s i可以是根据gold序列c(n)确定的,c(n)例如可以通过如下公式2来确定。
c(n)=(x 1(n+N c)+x 2(n+N c))mod 2
x 1(n+31)=(x 1(n+3)+x 1(n))mod 2
x 2(n+31)=(x 2(n+3)+x 2(n+2)+x 2(n+1)+x 2(n))mod 2
                                                               公式2
其中,N c为固定值,N c例如可以为1600。
作为一个示例,初始值x 1(0)=0,x 1(n)=0,n=1,2,…,30。在系统帧编号(system frame number,SFN)满足mod(SFN,8)=0的情况下,在n为小于或等于30的整数时,x 2(n)的初始值C init可以等于
Figure PCTCN2019092787-appb-000003
表示小区的标识(identity,ID)号,也就是说,在n为小于或等于30的整数时,x 2(n)的取值均相同,为固定值。
C init的取值可以是与终端设备所在的小区有关,例如,C init的取值等于终端设备所在的小区的ID号,如果终端设备所在的位置确定,则C init的取值就已经固定。目前,非物联网设备的小区ID号为0~1023中的整数,C init的取值可以为0~1023中的任意整数。
对于第一PBCH和第二PBCH而言,扰码序列s i可以是根据gold序列c(n)通过不同的 运算得到的,或者,扰码序列s i是根据gold序列c(n)通过相同的运算得到的,但是gold序列c(n)的取值不同。
作为一个实例,假设扰码序列s i都是通过如下公式3生成的。
s i=c(i+m)
                                                         公式3
m为整数,c(i+m)的取值可以通过公式2来确定,其中,n=i+m。
具体地,s 0=c(0+m),s 1=c(1+m),…,s A-1=c(A-1+m),这样可以计算出扰码序列s i
对于第一PBCH和第二PBCH而言,m的取值可以不同,这样得到的c(i+m)的值就不同,扰码序列s i也会不同。或者,m的值可以相同,但是gold序列c(n)的初始值不同,这样得到的扰码序列s i也会不同。或者,m的取值和gold序列c(n)的初始值均不同,得到的扰码序列s i也会不同。
下面对不同的情况分别进行描述。
作为一个示例,第一PBCH的扰码序列s i和第二PBCH的扰码序列s i都是通过公式3生成的,但是m的取值不同,这样通过公式2得到的扰码序列s i就会不同。
其中,m的取值可以是根据v确定的,v是根据PBCH携带的系统帧编号SFN的第二个和第三个最不重要的比特(least significant bits,LSB)确定的,则针对所述第一PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值与针对所述第二PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值不同。
通常情况下,SFN的比特序列中最右边的为最不重要的比特,最左边的为最重要的比特,从左往右,重要程度依次降低。因此,从右往左数的第二个和第三个比特可以理解为为本申请实施例提及的第二个和第三个最不重要的比特。
例如,对于相同的SFN的第二个和第三个最不重要的比特,针对所述第一PBCH确定的v值与针对所述第二PBCH确定的v值不同。
如表2和表3所示,表2和表3分别示出了v的取值的两种情况。
表2
Figure PCTCN2019092787-appb-000004
表3
Figure PCTCN2019092787-appb-000005
目前,针对得非物联网设备的第二PBCH的v值是通过表2得到的,本申请实施例可以通过表3确定针对物联网设备的第一PBCH的v值,这样,通过不同的v值,得到不同的gold序列c(n)的取值,从而得到不同的扰码序列s i
表3仅是一种示例,针对第一PBCH的v的取值并不限于表3的取值,只要针对相同的比特位,得到的v值不同即可。
例如,所述第一PBCH的扰码序列s i采用的v的取值中的最小值大于所述第二PBCH的扰码序列s i采用的v的取值中的最大值。如果针对第二PBCH的v的取值是通过表2得到的,即针对第二PBCH的v的取值为小于3的整数,则只要针对第一PBCH的v的取值均大于3即可。
又例如,针对第一PBCH的v的取值也可以是通过表4得到的。
表4
Figure PCTCN2019092787-appb-000006
由于针对第二PBCH的v的取值是通过表2确定的,这样即使是面对相同的SFN的比特,得到的v值也不同。例如SFN的第二个和第三个最不重要的比特均为(0,0),针对第一PBCH得到的v值为3,针对第二PBCH得到的v值为0,从而针对第一PBCH和第二PBCH得到的扰码序列s i不同,能够避免非物联设备接入到物联网设备的小区。
当然,针对第一PBCH的v的取值并不限于表3和表4的形式,也可以是其他的形式,本申请实施例对此不做具体限定。
作为另一个示例,gold序列c(n)的初始值均不同。由公式2可知,c(n)的初始值与x 1(n)和x 2(n)的初始值有关,因此可以针对物联网设备和非物联网设备分别定义不同的x 1(n)和x 2(n)的初始值。
以物联网设备和非物联网设备的x 2(n)的初始值不同为例,针对第一PBCH的扰码序列s i采用的初始值C init的取值范围与针对第二PBCH的扰码序列s i采用的初始值C init的取值范围不同。例如,所述第一PBCH的扰码序列s i采用的初始值C init中的最小值大于所述第二PBCH的扰码序列s i采用的初始值C init中的最大值,这样,不论针对第一PBCH的C init为何值,针对第二PBCH的C init都不会与针对第一PBCH的C init相同,能够避免非物联设备接入到物联网设备的小区。
所述第一PBCH的扰码序列s i采用的初始值C init中的最小值表示针对第一PBCH,能够使用的所有的C init的取值中的最小值,所述第二PBCH的扰码序列s i采用的初始值C init中的最大值可以表示针对第二PBCH,能够使用的所有的C init的取值中的最大值。
目前,针对非物联网设备而言,在SFN满足mod(SFN,8)=0的情况下,x 2(n)的初始值为C init
Figure PCTCN2019092787-appb-000007
表示小区的标识(identity,ID)。非物联网设备的小区ID的取值范围为0~1023,则针对物联网设备的x 2(n)的初始值为C init可以大于1023,也就是说,第一PBCH的扰码序列s i采用的初始值C init大于或等于1024。
作为又一个示例,针对第一PBCH和针对第二PBCH采用的m值不同。例如,所述第一PBCH的扰码序列s i采用的m的取值,是在所述第二PBCH的扰码序列s i采用的m的取值的基础上增加第一偏置量得到的。
例如,第一偏置量可以为大于0的整数,只要第一偏置量大于0,则根据gold序列c(n)得到的扰码序列s i就不同。
又例如,第一偏置量可以大于或等于针对第二PBCH的m的取值中的最大值,因此针对第一PBCH的m的取值中的最小值也是大于针对第二PBCH的m的取值中的最大值,这样通过m得到的扰码序列s i是不同的。
假设m=vM,则有如下公式4。
s i=c(i+vM)
                                               公式4
其中,M是根据PBCH的负载序列的长度A确定的。
L的取值可以为4,8,64,当L=4或L=8时,M=A-3;当L=64时,M=A-6,L表示SSB的个数,A表示PBCH的负载序列的长度。
如果针对第二PBCH的扰码序列s i是根据公式4得到的,那么针对第一PBCH的扰码序列s i可以是通过如下公式5得到的。
s i=c(i+vM+X)
                                            公式5
其中,X可以表示第一偏置量。X的值可以是预定义的,X的取值例如可以为大于或等于96的整数。
通常情况下,PBCH的负载序列的长度小于或等于24,因此,A≤24,所以i的最大值为24;对于第二PBCH而言,v的最大值为3,M的最大值为24,因此得到的gold序列c(n)中的n的最大取值为96。因此,针对第一PBCH的第一偏置量X的取值可以大于或等于96,这样通过公式4和公式5得到的扰码序列s i就不相同。
为方便理解,下面结合具体的例子对本申请实施例的方法进行详细描述。
PBCH的原始负载序列为a 0,a 1,…,a A-1,经过扰码序列s i加扰后的序列为a′ 0,a′ 1,…,a′ A-1,其中,a' i=(a i+s i)mod2,A表示PBCH的负载序列的长度。扰码序列s 0,s 1,…,s A-1可以通过如下脚本公式产生:
i=0;
j=0;
While i<A;
If a i对应SSB的索引、半帧索引(the half frame index)或者SFN的第二个和第三个最不重要的比特时:
s i=0;
否则:
s i=c(j+vM);
j=j+1;
end if
i=i+1;
end while.
其中,c(n)为gold序列,c(n)的取值可以通过公式2得到。
在公式2中,N c=1600,初始值x 1(0)=0,x 1(n)=0,n=1,2,…,30。在SFN满足mod(SFN,8)=0的情况下,x 2(n)的初始值C init可以等于
Figure PCTCN2019092787-appb-000008
表示小区的标识(identity,ID)号。
当L=4或L=时,M=A-3;当L=64时,M=A-6,其中,L表示SSB的个数。
v可以基于PBCH携带的SFN的第二个和第三个最不重要的比特确定。如上文的表2-表4所示。
第一PBCH和第二PBCH的扰码序列s i不同可以通过以下几个方面来体现:
1、x 2(n)的初始值不同。第一PDCH的x 2(n)的初始值可以在第二PBCH的x 2(n)的初始值的基础上增加一个偏置量得到,该偏置量可以为预定义的,该偏置量例如大于或等于1024的整数。
2、gold序列c(n)不同。第二PBCH的扰码序列s i是通过公式4的gold序列c(n)生成的,第一PBCH的扰码序列s i是通过公式5的gold序列c(n)生成的。偏置量X为预定义的,该偏置量X例如可以为大于或等于96的整数。
3、公式4中的v值不同。对于相同的SFN的第二个和第三个最不重要的比特,根据第一PBCH确定的v值,和根据第二PBCH确定的v值不同。例如,针对第二PBCH的v值是通过表2生成的,针对第一PBCH的v值是通过表3或表4生成的。
为了避免非物联网设备通过搜索针对物联网设备传输的SSB接入到物联网设备的小 区,另一种可能的方式是这很对物联网设备发送的SSB的同步信道栅格(sync raster)不同于非物联网设备的同步信道栅格,这样非物联网设备就搜索不到针对物联网设备发送的SSB,从而也就不会接入到物联网设备的小区。
传输SSB同步信道栅格可以理解为传输SSB的频率位置。由于SSB中包括PBCH,因此,本申请实施例中的传输PBCH的同步信道栅格可以理解为传输SSB的同步信道栅格。
对于网络设备来说,传输PBCH的同步信道栅格可以指发送PBCH的同步信道栅格;对于终端设备来说,传输PBCH的同步信道栅格可以指接收PBCH的同步信道栅格。
所述物联网设备接收所述第一PBCH的同步信道栅格与所述非物联网设备接收所述第二PBCH的同步信道栅格之间具有频率间隔,所述频率间隔使得所述非物联网设备接收所述第二PBCH时能够搜索到的频率范围不包括所述物联网设备接收所述第一PBCH的同步信道栅格。
所述网络设备发送所述第一PBCH的同步信道栅格与所述网络设备发送所述第二PBCH的同步信道栅格之间具有频率间隔,所述频率间隔使得所述非物联网设备接收所述第二PBCH时能够搜索到的频率范围不包括所述物联网设备接收所述第一PBCH的同步信道栅格。
例如可以在现有的非物联网设备的Sync raster的计算公式上加上一个额外的偏置,使得物联网设备使用的Sync raster与现有非物联网设备使用的Sync raster之间有足够的频率间隔(例如大于SSB检测所容许的最大频率偏差),从而其他非物联网设备不会搜索到针对物联网设备终端发送的SSB,因此不会接入到物联网设备的小区。
作为一个示例,所述物联网设备接收所述第一PBCH的同步信道栅格位于所述非物联网设备接收所述第二PBCH的相邻两个同步信道栅格的中间位置上。所述网络设备发送所述第一PBCH的同步信道栅格位于所述网络设备发送所述第二PBCH的相邻两个同步信道栅格的中间位置上。
下面结合表5和表6,对物联网设备和非物联网设备的同步信道栅格的计算公式进行描述。
表5示出的是非物联网设备的同步信道栅格的计算方式。
表5
Figure PCTCN2019092787-appb-000009
其中,GSCN可以表示全局同步信道号(global synchronization channel number,GSCN)。
当频率范围在0-3000MHz之间时,N可以为1~2499之间的任意整数,M可以为1,3,5中的任意值。当N=1时,SSB的频率位置可以为1250kHz、1350kHz、1450kHz;当N=2时,SSB的频率位置可以为2450kHz、2550kHz、2650kHz;……;以此类推,得到非物联网设备的频率在0–3000MHz之间的SSB的所有的频率位置。
当频率范围在3000MHz-24250MHz之间时,N可以为0~14756之间的任意整数。当N=0时,SSB的频率位置可以为3000MHz;当N=1时,SSB的频率位置可以为3001.44MHz;……;以此类推,得到非物联网设备的频率在3000MHz-24250MHz之间的SSB的所有的频率位置。
表6示出的是本申请实施例提供的一种物联网设备的同步信道栅格的计算方式。
表6
Figure PCTCN2019092787-appb-000010
当频率范围在0-3000MHz之间时,N可以为1~2499之间的任意整数,M可以为1,3,5中的任意值。当N=1时,SSB的频率位置可以为1850kHz、1950kHz、2050kHz;当N=2时,SSB的频率位置可以为3050kHz、3150kHz、3250kHz;……;以此类推,得到物联网设备的频率在0-3000MHz之间的SSB的所有的频率位置。
当频率范围在3000MHz-24250MHz之间时,N可以为0~14756之间的任意整数。当N=0时,SSB的频率位置可以为3000MHz;当N=1时,SSB的频率位置可以为3001.44MHz;……;以此类推,得到物联网设备的频率在3000MHz-24250MHz之间的SSB的所有的频率位置。
由表5和表6可以看出,表6中的SSB的频率位置在表5中的连续两个SSB的频率位置的中间位置。这样,物联网设备的SSB的频率位置与非物联网设备的SSB的频率位置之间有足够的频率间隔,使得非物联网设备无法搜索到针对物联网设备的SSB,从而不能接入到针对物联网设备部署的小区。
图4是本申请实施例提供的另一种用于小区接入的方法,该方法包括步骤S410~S420。
S410、网络设备向终端设备发送第一系统信息。
S420,终端设备接收网络设备发送的第一系统信息。
其中,所述第一系统信息是网络设备针对所述物联网设备发送的系统信息,用于加扰调度所述第一系统信息的物理下行控制信道PDCCH的系统信息无线网络临时标识(system information radio network tempory identity,SI-RNTI),与用于加扰调度第二系统信息的PDCCH的SI-RNTI不同,第二系统信息是网络设备针对非物联网设备发送的系统信息。
系统信息中可以包括小区配置的公共参数,第一系统信息可用于物联网设备获取物联网设备的小区配置的公共参数,然后物联网设备可以根据第一系统信息,接入到物联网设备的小区;第二系统信息可用于非物联网设备获取非物联网设备的小区配置的公共参数,然后非物联网设备可以根据第二系统信息,接入到非物联网设备的小区。
由上文的描述可知,终端设备在接入小区时,需要先检测SSB,SSB中包括PBCH,PBCH可用于指示系统信息的PDCCH CORESET,终端设备可以从PDCCH CORESET中获取系统信息,然后根据系统信息接入到小区。
用于调度系统信息的PDCCH可以通过SI-RNTI进行加扰,本申请实施例针对物联网设备,可以采用专用的SI-RNTI,该SI-RNTI不同于非物联网设备用于加扰PDCCH的SI-RNTI。
物联网设备可以通过专用的SI-RNTI读取针对物联网设备广播的系统信息,但是其他非物联网设备即使正确读取了针对物联网设备发送的PBCH,并基于PBCH的指示读取了针对物联网设备的PDCCH CORESET,由于针对物联网设备的用于调度系统信息的PDCCH采用专用的SI-RNTI进行加扰,则非物联网设备也无法正确读取针对物联网设备的系统信息,从而不能接入到针对物联网设备部署的小区。
上文中详细描述了根据本申请实施例的用于小区接入的方法,下面将结合图5至图11,描述根据本申请实施例的装置,方法实施例所描述的技术特征适用于以下装置实施例。
图5是本申请实施例提供的一种终端设备的示意性框图,该终端设备可以是上文描述的任一种终端设备,该终端设备例如可以使上文描述的物联网设备。图5的终端设备500包括通信单元510,其中:
通信单元510,用于接收第一物理广播信道PBCH,所述第一PBCH是网络设备针对所述物联网设备发送的PBCH,其中,所述第一PBCH与第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、接收PBCH的同步信道栅格,所述第二PBCH是所述网络设备针对非物联网设备发送的PBCH。
可选地,PBCH的扰码序列s i是根据c(i+m)确定的,c(i+m)为gold序列,i=0,1,2,…,A-1,A为PBCH的负载序列的长度,所述第一PBCH的c(i+m)和所述第二PBCH的c(i+m)不同,m为整数。
可选地,所述c(i+m)中的m的取值是根据v确定的,v是根据PBCH携带的系统帧编号SFN的第二个和第三个最不重要的比特确定的,针对所述第一PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值与针对所述第二PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值不同。
可选地,对于相同的SFN的第二个和第三个最不重要的比特,针对所述第一PBCH确定的v值与针对所述第二PBCH确定的v值不同。
可选地,所述第一PBCH的扰码序列s i采用的v的取值中的最小值大于所述第二PBCH的扰码序列s i采用的v的取值中的最大值。
可选地,所述c(i+m)的取值是基于以下公式确定的:
c(n)=(x 1(n+N c)+x 2(n+N c))mod 2
x 1(n+31)=(x 1(n+3)+x 1(n))mod 2
x 2(n+31)=(x 2(n+3)+x 2(n+2)+x 2(n+1)+x 2(n))mod 2
其中,n=i+m,Nc为固定值,x 1(0)=0,x 1(n)的初始值x 1(n)=1,n=1,2,…,30,x 2(n)的初始值为C init,x 2(n)在n小于或等于30时的取值均为C init,所述第一PBCH的扰码序列采用的初始值C init与所述第二PBCH的扰码序列采用的初始值C init不同。
可选地,所述第一PBCH的扰码序列s i采用的初始值C init中的最小值大于所述第二PBCH的扰码序列s i采用的初始值C init中的最大值。
可选地,所述初始值
Figure PCTCN2019092787-appb-000011
的取值为小区的标识ID号,所述第一PBCH的扰码序列s i采用的初始值C init大于或等于1024,所述第二PBCH的扰码序列s i采用的初始值C init小于或等于1023。
可选地,所述第一PBCH的扰码序列s i采用的m的取值,是在所述第二PBCH的扰码序列s i采用的m的取值的基础上增加第一偏置量得到的。
可选地,所述第一偏置量为大于或等于96的整数。
可选地,所述物联网设备接收所述第一PBCH的同步信道栅格与所述非物联网设备接收所述第二PBCH的同步信道栅格之间具有频率间隔,所述频率间隔使得所述非物联网设备接收所述第二PBCH时能够搜索到的频率范围不包括所述物联网设备接收所述第一PBCH的同步信道栅格。
可选地,所述物联网设备接收所述第一PBCH的同步信道栅格位于所述非物联网设备接收所述第二PBCH的相邻两个同步信道栅格的中间位置上。
图6是本申请实施例提供的另一种终端设备的示意性框图,该终端设备可以是上文描述的任一种终端设备,该终端设备例如可以使上文描述的物联网设备。图6的终端设备600包括通信单元610,其中:
通信单元610,用于接收第一系统信息,所述第一系统信息是网络设备针对所述物联网设备发送的系统信息,用于加扰调度所述第一系统信息的物理下行控制信道PDCCH的系统信息无线网络临时标识SI-RNTI,与用于加扰调度第二系统信息的PDCCH的SI-RNTI 不同,所述第二系统信息是所述网络设备针对非物联网设备发送的系统信息。
图7是本申请实施例提供的一种网络设备的示意性框图,该网络设备可以是上文描述的任一种网络设备。图7的网络设备700包括通信单元710,其中:
通信单元710,用于发送第一物理广播信道PBCH,所述第一PBCH是所述网络设备针对所述物联网设备发送的PBCH,其中,所述第一PBCH与第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、发送PBCH的同步信道栅格,所述第二PBCH是所述网络设备针对非物联网设备发送的PBCH。
可选地,PBCH的扰码序列s i是根据c(i+m)确定的,c(i+m)为gold序列,i=0,1,2,…,A-1,A为PBCH的负载序列的长度,所述第一PBCH的c(i+m)和所述第二PBCH的c(i+m)不同,m为正整数。
可选地,所述c(i+m)中的m的取值是根据v确定的,v是根据PBCH携带的系统帧编号SFN的第二个和第三个最不重要的比特确定的,针对所述第一PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值与针对所述第二PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值不同。
可选地,对于相同的SFN的第二个和第三个最不重要的比特,针对所述第一PBCH确定的v值与针对所述第二PBCH确定的v值不同。
可选地,所述第一PBCH的扰码序列s i采用的v的取值中的最小值大于所述第二PBCH的扰码序列s i采用的v的取值中的最大值。
可选地,所述c(i+m)的取值是基于以下公式确定的:
c(n)=(x 1(n+N c)+x 2(n+N c))mod 2
x 1(n+31)=(x 1(n+3)+x 1(n))mod 2
x 2(n+31)=(x 2(n+3)+x 2(n+2)+x 2(n+1)+x 2(n))mod 2
其中,n=i+m,Nc为固定值,x 1(0)=0,x 1(n)的初始值x 1(n)=1,n=1,2,…,30,x 2(n)的初始值为C init,x 2(n)在n小于或等于30时的取值均为C init,所述第一PBCH的扰码序列采用的初始值C init与所述第二PBCH的扰码序列采用的初始值C init不同。
可选地,所述第一PBCH的扰码序列s i采用的初始值C init中的最小值大于所述第二PBCH的扰码序列s i采用的初始值C init中的最大值。
可选地,所述初始值
Figure PCTCN2019092787-appb-000012
的取值为小区的标识ID号,所述第一PBCH的扰码序列s i采用的初始值C init大于或等于1024,所述第二PBCH的扰码序列s i采用的初始值C init小于或等于1023。
可选地,所述第一PBCH的扰码序列s i采用的m的取值,是在所述第二PBCH的扰码序列s i采用的m的取值的基础上增加第一偏置量得到的。
可选地,所述第一偏置量为大于或等于96的整数。
可选地,所述网络设备发送所述第一PBCH的同步信道栅格与所述网络设备发送所述第二PBCH的同步信道栅格之间具有频率间隔,所述频率间隔使得所述非物联网设备接收所述第二PBCH时能够搜索到的频率范围不包括所述物联网设备接收所述第一PBCH的同步信道栅格。
可选地,所述网络设备发送所述第一PBCH的同步信道栅格位于所述网络设备发送所述第二PBCH的相邻两个同步信道栅格的中间位置上。
图8是本申请实施例提供的另一种网络设备的示意性框图,该网络设备可以是上文描述的任一种网络设备。图8的网络设备800包括通信单元810,其中:
通信单元810,用于发送第一系统信息,所述第一系统信息是网络设备针对物联网设备发送的系统信息,用于加扰调度所述第一系统信息的物理下行控制信道PDCCH的系统信息无线网络临时标识SI-RNTI,与用于加扰调度第二系统信息的PDCCH的SI-RNTI不同,所述第二系统信息是所述网络设备针对非物联网设备发送的系统信息。
图9是本申请实施例提供的一种通信设备900示意性结构图。图9所示的通信设备900包括处理器910,处理器910可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图9所示,通信设备900还可以包括存储器920。其中,处理器910可以从存储器920中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器920可以是独立于处理器910的一个单独的器件,也可以集成在处理器910中。
可选地,如图9所示,通信设备900还可以包括收发器930,处理器910可以控制该收发器930与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器930可以包括发射机和接收机。收发器930还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备900具体可为本申请实施例的网络设备,并且该通信设备900可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备900具体可为本申请实施例的移动终端/终端设备,并且该通信设备900可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,具体地,该通信设备900可以实现本申请实施例的各个方法中由第一终端设备和/或第二终端设备实现的相应流程,为了简洁,在此不再赘述。
图10是本申请实施例的装置的示意性结构图。图10所示的装置1000包括处理器1010,处理器1010可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图10所示,装置1000还可以包括存储器1020。其中,处理器1010可以从存储器1020中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器1020可以是独立于处理器1010的一个单独的器件,也可以集成在处理器1010中。
可选地,该装置1000还可以包括输入接口1030。其中,处理器1010可以控制该输入接口1030与其他设备或装置进行通信,具体地,可以获取其他设备或装置发送的信息或数据。
可选地,该装置1000还可以包括输出接口1040。其中,处理器1010可以控制该输出接口1040与其他设备或装置进行通信,具体地,可以向其他设备或装置输出信息或数据。
可选地,该装置可应用于本申请实施例中的网络设备,并且该装置可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该装置可应用于本申请实施例中的移动终端/终端设备,并且该装置可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
应理解,本申请实施例提到的装置可以为芯片,该芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
图11是本申请实施例提供的一种通信系统1100的示意性框图。如图11所示,该通信系统1100包括终端设备1110和网络设备1120。
其中,该终端设备1110可以用于实现上述方法中由终端设备实现的相应的功能,以及该网络设备1120可以用于实现上述方法中由网络设备实现的相应的功能为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可 编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为 了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的移动终端/终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。针对这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,)ROM、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (76)

  1. 一种用于小区接入的方法,其特征在于,包括:
    物联网设备接收第一物理广播信道PBCH,所述第一PBCH是网络设备针对所述物联网设备发送的PBCH,其中,所述第一PBCH与第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、接收PBCH的同步信道栅格,所述第二PBCH是所述网络设备针对非物联网设备发送的PBCH。
  2. 根据权利要求1所述的方法,其特征在于,PBCH的扰码序列s i是根据c(i+m)确定的,c(i+m)为gold序列,i=0,1,2,…,A-1,A为PBCH的负载序列的长度,所述第一PBCH的c(i+m)和所述第二PBCH的c(i+m)不同,m为整数。
  3. 根据权利要求2所述的方法,其特征在于,所述c(i+m)中的m的取值是根据v确定的,v是根据PBCH携带的系统帧编号SFN的第二个和第三个最不重要的比特确定的,针对所述第一PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值与针对所述第二PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值不同。
  4. 根据权利要求3所述的方法,其特征在于,对于相同SFN的第二个和第三个最不重要的比特,针对所述第一PBCH确定的v值与针对所述第二PBCH确定的v值不同。
  5. 根据权利要求3或4所述的方法,其特征在于,所述第一PBCH的扰码序列s i采用的v的取值中的最小值大于所述第二PBCH的扰码序列s i采用的v的取值中的最大值。
  6. 根据权利要求2-5中任一项所述的方法,其特征在于,所述c(i+m)的取值是基于以下公式确定的:
    c(n)=(x 1(n+N c)+x 2(n+N c))mod2
    x 1(n+31)=(x 1(n+3)+x 1(n))mod2
    x 2(n+31)=(x 2(n+3)+x 2(n+2)+x 2(n+1)+x 2(n))mod2
    其中,n=i+m,Nc为固定值,x 1(0)=0,x 1(n)的初始值x 1(n)=1,n=1,2,…,30,x 2(n)的初始值为C init,x 2(n)在n小于或等于30时的取值均为C init,所述第一PBCH的扰码序列采用的初始值C init与所述第二PBCH的扰码序列采用的初始值C init不同。
  7. 根据权利要求6所述的方法,其特征在于,所述第一PBCH的扰码序列s i采用的初始值C init中的最小值大于所述第二PBCH的扰码序列s i采用的初始值C init中的最大值。
  8. 根据权利要求6或7所述的方法,其特征在于,所述初始值
    Figure PCTCN2019092787-appb-100001
    的取值为小区的标识ID号,所述第一PBCH的扰码序列s i采用的初始值C init大于或等于1024,所述第二PBCH的扰码序列s i采用的初始值C init小于或等于1023。
  9. 根据权利要求2-8中任一项所述的方法,其特征在于,所述第一PBCH的扰码序列s i采用的m的取值,是在所述第二PBCH的扰码序列s i采用的m的取值的基础上增加第一偏置量得到的。
  10. 根据权利要求9所述的方法,其特征在于,所述第一偏置量为大于或等于96的整数。
  11. 根据权利要求1-10中任一项所述的方法,其特征在于,所述物联网设备接收所述第一PBCH的同步信道栅格与所述非物联网设备接收所述第二PBCH的同步信道栅格之间具有频率间隔,所述频率间隔使得所述非物联网设备接收所述第二PBCH时能够搜索到的频率范围不包括所述物联网设备接收所述第一PBCH的同步信道栅格。
  12. 根据权利要求11所述的方法,其特征在于,所述物联网设备接收所述第一PBCH的同步信道栅格位于所述非物联网设备接收所述第二PBCH的相邻两个同步信道栅格的中间位置上。
  13. 一种用于小区接入的方法,其特征在于,包括:
    物联网设备接收第一系统信息,所述第一系统信息是网络设备针对所述物联网设备发送的系统信息,用于加扰调度所述第一系统信息的物理下行控制信道PDCCH的系统信息 无线网络临时标识SI-RNTI,与用于加扰调度第二系统信息的PDCCH的SI-RNTI不同,所述第二系统信息是所述网络设备针对非物联网设备发送的系统信息。
  14. 一种用于小区接入的方法,其特征在于,包括:
    网络设备发送第一物理广播信道PBCH,所述第一PBCH是所述网络设备针对所述物联网设备发送的PBCH,其中,所述第一PBCH与第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、发送PBCH的同步信道栅格,所述第二PBCH是所述网络设备针对非物联网设备发送的PBCH。
  15. 根据权利要求14所述的方法,其特征在于,PBCH的扰码序列s i是根据c(i+m)确定的,c(i+m)为gold序列,i=0,1,2,…,A-1,A为PBCH的负载序列的长度,所述第一PBCH的c(i+m)和所述第二PBCH的c(i+m)不同,m为正整数。
  16. 根据权利要求15所述的方法,其特征在于,所述c(i+m)中的m的取值是根据v确定的,v是根据PBCH携带的系统帧编号SFN的第二个和第三个最不重要的比特确定的,针对所述第一PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值与针对所述第二PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值不同。
  17. 根据权利要求16所述的方法,其特征在于,对于相同的SFN的第二个和第三个最不重要的比特,针对所述第一PBCH确定的v值与针对所述第二PBCH确定的v值不同。
  18. 根据权利要求16或17所述的方法,其特征在于,所述第一PBCH的扰码序列s i采用的v的取值中的最小值大于所述第二PBCH的扰码序列s i采用的v的取值中的最大值。
  19. 根据权利要求15-18中任一项所述的方法,其特征在于,所述c(i+m)的取值是基于以下公式确定的:
    c(n)=(x 1(n+N c)+x 2(n+N c))mod2
    x 1(n+31)=(x 1(n+3)+x 1(n))mod2
    x 2(n+31)=(x 2(n+3)+x 2(n+2)+x 2(n+1)+x 2(n))mod2
    其中,n=i+m,Nc为固定值,x 1(0)=0,x 1(n)的初始值x 1(n)=1,n=1,2,…,30,x 2(n)的初始值为C init,x 2(n)在n小于或等于30时的取值均为C init,所述第一PBCH的扰码序列采用的初始值C init与所述第二PBCH的扰码序列采用的初始值C init不同。
  20. 根据权利要求19所述的方法,其特征在于,所述第一PBCH的扰码序列s i采用的初始值C init中的最小值大于所述第二PBCH的扰码序列s i采用的初始值C init中的最大值。
  21. 根据权利要求19或20所述的方法,其特征在于,所述初始值
    Figure PCTCN2019092787-appb-100002
    的取值为小区的标识ID号,所述第一PBCH的扰码序列s i采用的初始值C init大于或等于1024,所述第二PBCH的扰码序列s i采用的初始值C init小于或等于1023。
  22. 根据权利要求15-21中任一项所述的方法,其特征在于,所述第一PBCH的扰码序列s i采用的m的取值,是在所述第二PBCH的扰码序列s i采用的m的取值的基础上增加第一偏置量得到的。
  23. 根据权利要求22所述的方法,其特征在于,所述第一偏置量为大于或等于96的整数。
  24. 根据权利要求14-23中任一项所述的方法,其特征在于,所述网络设备发送所述第一PBCH的同步信道栅格与所述网络设备发送所述第二PBCH的同步信道栅格之间具有频率间隔,所述频率间隔使得所述非物联网设备接收所述第二PBCH时能够搜索到的频率范围不包括所述物联网设备接收所述第一PBCH的同步信道栅格。
  25. 根据权利要求24所述的方法,其特征在于,所述网络设备发送所述第一PBCH的同步信道栅格位于所述网络设备发送所述第二PBCH的相邻两个同步信道栅格的中间位置上。
  26. 一种用于小区接入的方法,其特征在于,包括:
    网络设备发送第一系统信息,所述第一系统信息是网络设备针对物联网设备发送的系统信息,用于加扰调度所述第一系统信息的物理下行控制信道PDCCH的系统信息无线网络临时标识SI-RNTI,与用于加扰调度第二系统信息的PDCCH的SI-RNTI不同,所述第二系统信息是所述网络设备针对非物联网设备发送的系统信息。
  27. 一种终端设备,其特征在于,所述终端设备为物联网设备,包括:
    通信单元,用于接收第一物理广播信道PBCH,所述第一PBCH是网络设备针对所述物联网设备发送的PBCH,其中,所述第一PBCH与第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、接收PBCH的同步信道栅格,所述第二PBCH是所述网络设备针对非物联网设备发送的PBCH。
  28. 根据权利要求27所述的终端设备,其特征在于,PBCH的扰码序列s i是根据c(i+m)确定的,c(i+m)为gold序列,i=0,1,2,…,A-1,A为PBCH的负载序列的长度,所述第一PBCH的c(i+m)和所述第二PBCH的c(i+m)不同,m为整数。
  29. 根据权利要求28所述的终端设备,其特征在于,所述c(i+m)中的m的取值是根据v确定的,v是根据PBCH携带的系统帧编号SFN的第二个和第三个最不重要的比特确定的,针对所述第一PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值与针对所述第二PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值不同。
  30. 根据权利要求29所述的终端设备,其特征在于,对于相同的SFN的第二个和第三个最不重要的比特,针对所述第一PBCH确定的v值与针对所述第二PBCH确定的v值不同。
  31. 根据权利要求29或30所述的终端设备,其特征在于,所述第一PBCH的扰码序列s i采用的v的取值中的最小值大于所述第二PBCH的扰码序列s i采用的v的取值中的最大值。
  32. 根据权利要求28-31中任一项所述的终端设备,其特征在于,所述c(i+m)的取值是基于以下公式确定的:
    c(n)=(x 1(n+N c)+x 2(n+N c))mod2
    x 1(n+31)=(x 1(n+3)+x 1(n))mod2
    x 2(n+31)=(x 2(n+3)+x 2(n+2)+x 2(n+1)+x 2(n))mod2
    其中,n=i+m,Nc为固定值,x 1(0)=0,x 1(n)的初始值x 1(n)=1,n=1,2,…,30,x 2(n)的初始值为C init,x 2(n)在n小于或等于30时的取值均为C init,所述第一PBCH的扰码序列采用的初始值C init与所述第二PBCH的扰码序列采用的初始值C init不同。
  33. 根据权利要求32所述的终端设备,其特征在于,所述第一PBCH的扰码序列s i采用的初始值C init中的最小值大于所述第二PBCH的扰码序列s i采用的初始值C init中的最大值。
  34. 根据权利要求32或33所述的终端设备,其特征在于,所述初始值
    Figure PCTCN2019092787-appb-100003
    Figure PCTCN2019092787-appb-100004
    的取值为小区的标识ID号,所述第一PBCH的扰码序列s i采用的初始值C init大于或等于1024,所述第二PBCH的扰码序列s i采用的初始值C init小于或等于1023。
  35. 根据权利要求28-34中任一项所述的终端设备,其特征在于,所述第一PBCH的扰码序列s i采用的m的取值,是在所述第二PBCH的扰码序列s i采用的m的取值的基础上增加第一偏置量得到的。
  36. 根据权利要求35所述的终端设备,其特征在于,所述第一偏置量为大于或等于96的整数。
  37. 根据权利要求27-36中任一项所述的终端设备,其特征在于,所述物联网设备接收所述第一PBCH的同步信道栅格与所述非物联网设备接收所述第二PBCH的同步信道栅格之间具有频率间隔,所述频率间隔使得所述非物联网设备接收所述第二PBCH时能够搜索到的频率范围不包括所述物联网设备接收所述第一PBCH的同步信道栅格。
  38. 根据权利要求37所述的终端设备,其特征在于,所述物联网设备接收所述第一PBCH的同步信道栅格位于所述非物联网设备接收所述第二PBCH的相邻两个同步信道栅格的中间位置上。
  39. 一种终端设备,其特征在于,所述终端设备为物联网设备,包括:
    通信单元,用于接收第一系统信息,所述第一系统信息是网络设备针对所述物联网设备发送的系统信息,用于加扰调度所述第一系统信息的物理下行控制信道PDCCH的系统信息无线网络临时标识SI-RNTI,与用于加扰调度第二系统信息的PDCCH的SI-RNTI不同,所述第二系统信息是所述网络设备针对非物联网设备发送的系统信息。
  40. 一种网络设备,其特征在于,包括:
    通信单元,用于发送第一物理广播信道PBCH,所述第一PBCH是所述网络设备针对所述物联网设备发送的PBCH,其中,所述第一PBCH与第二PBCH在以下方面中的至少一种中不同:PBCH的扰码序列、发送PBCH的同步信道栅格,所述第二PBCH是所述网络设备针对非物联网设备发送的PBCH。
  41. 根据权利要求40所述的网络设备,其特征在于,PBCH的扰码序列s i是根据c(i+m)确定的,c(i+m)为gold序列,i=0,1,2,…,A-1,A为PBCH的负载序列的长度,所述第一PBCH的c(i+m)和所述第二PBCH的c(i+m)不同,m为正整数。
  42. 根据权利要求41所述的网络设备,其特征在于,所述c(i+m)中的m的取值是根据v确定的,v是根据PBCH携带的系统帧编号SFN的第二个和第三个最不重要的比特确定的,针对所述第一PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值与针对所述第二PBCH携带的SFN的第二个和第三个最不重要的比特确定的v值不同。
  43. 根据权利要求42所述的网络设备,其特征在于,对于相同的SFN的第二个和第三个最不重要的比特,针对所述第一PBCH确定的v值与针对所述第二PBCH确定的v值不同。
  44. 根据权利要求42或43所述的网络设备,其特征在于,所述第一PBCH的扰码序列s i采用的v的取值中的最小值大于所述第二PBCH的扰码序列s i采用的v的取值中的最大值。
  45. 根据权利要求41-44中任一项所述的网络设备,其特征在于,所述c(i+m)的取值是基于以下公式确定的:
    c(n)=(x 1(n+N c)+x 2(n+N c))mod2
    x 1(n+31)=(x 1(n+3)+x 1(n))mod2
    x 2(n+31)=(x 2(n+3)+x 2(n+2)+x 2(n+1)+x 2(n))mod2
    其中,n=i+m,Nc为固定值,x 1(0)=0,x 1(n)的初始值x 1(n)=1,n=1,2,…,30,x 2(n)的初始值为C init,x 2(n)在n小于或等于30时的取值均为C init,所述第一PBCH的扰码序列采用的初始值C init与所述第二PBCH的扰码序列采用的初始值C init不同。
  46. 根据权利要求45所述的网络设备,其特征在于,所述第一PBCH的扰码序列s i采用的初始值C init中的最小值大于所述第二PBCH的扰码序列s i采用的初始值C init中的最大值。
  47. 根据权利要求45或46所述的网络设备,其特征在于,所述初始值
    Figure PCTCN2019092787-appb-100005
    Figure PCTCN2019092787-appb-100006
    的取值为小区的标识ID号,所述第一PBCH的扰码序列s i采用的初始值C init大于或等于1024,所述第二PBCH的扰码序列s i采用的初始值C init小于或等于1023。
  48. 根据权利要求41-47中任一项所述的网络设备,其特征在于,所述第一PBCH的扰码序列s i采用的m的取值,是在所述第二PBCH的扰码序列s i采用的m的取值的基础上增加第一偏置量得到的。
  49. 根据权利要求48所述的网络设备,其特征在于,所述第一偏置量为大于或等于96的整数。
  50. 根据权利要求40-49中任一项所述的网络设备,其特征在于,所述网络设备发送所述第一PBCH的同步信道栅格与所述网络设备发送所述第二PBCH的同步信道栅格之间具有频率间隔,所述频率间隔使得所述非物联网设备接收所述第二PBCH时能够搜索到的频率范围不包括所述物联网设备接收所述第一PBCH的同步信道栅格。
  51. 根据权利要求50所述的网络设备,其特征在于,所述网络设备发送所述第一PBCH的同步信道栅格位于所述网络设备发送所述第二PBCH的相邻两个同步信道栅格的中间位置上。
  52. 一种网络设备,其特征在于,包括:
    通信单元,用于发送第一系统信息,所述第一系统信息是网络设备针对物联网设备发送的系统信息,用于加扰调度所述第一系统信息的物理下行控制信道PDCCH的系统信息无线网络临时标识SI-RNTI,与用于加扰调度第二系统信息的PDCCH的SI-RNTI不同,所述第二系统信息是所述网络设备针对非物联网设备发送的系统信息。
  53. 一种终端设备,其特征在于,所述终端设备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程序,以执行权利要求1至12中任一项所述的方法。
  54. 一种终端设备,其特征在于,所述终端设备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程序,以执行权利要求13所述的方法。
  55. 一种网络设备,其特征在于,所述网络设备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程序,以执行权利要求14至25中任一项所述的方法。
  56. 一种网络设备,其特征在于,所述网络设备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程序,以执行权利要求26所述的方法。
  57. 一种通信装置,其特征在于,所述通信装置包括处理器,所述处理器用于从存储器中调用并运行计算机程序,使得安装有所述通信装置的设备执行权利要求1至12中任一项所述的方法。
  58. 一种通信装置,其特征在于,所述通信装置包括处理器,所述处理器用于从存储器中调用并运行计算机程序,使得安装有所述通信装置的设备执行权利要求13所述的方法。
  59. 一种通信装置,其特征在于,所述通信装置包括处理器,所述处理器用于从存储器中调用并运行计算机程序,使得安装有所述通信装置的设备执行权利要求权利要求14至25中任一项所述的方法。
  60. 一种通信装置,其特征在于,所述通信装置包括处理器,所述处理器用于从存储器中调用并运行计算机程序,使得安装有所述通信装置的设备执行权利要求26所述的方法。
  61. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行权利要求1至12中任一项所述的方法。
  62. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行权利要求13所述的方法。
  63. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行权利要求14至25中任一项所述的方法。
  64. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行权利要求26所述的方法。
  65. 一种计算机程序产品,其特征在于,包括计算机程序指令,所述计算机程序指令 使得计算机执行权利要求1至12中任一项所述的方法。
  66. 一种计算机程序产品,其特征在于,包括计算机程序指令,所述计算机程序指令使得计算机执行权利要求13所述的方法。
  67. 一种计算机程序产品,其特征在于,包括计算机程序指令,所述计算机程序指令使得计算机执行权利要求14至25中任一项所述的方法。
  68. 一种计算机程序产品,其特征在于,包括计算机程序指令,所述计算机程序指令使得计算机执行权利要求26所述的方法。
  69. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行权利要求1至12中任一项所述的方法。
  70. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行权利要求13所述的方法。
  71. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行权利要求14至25中任一项所述的方法。
  72. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行权利要求26所述的方法。
  73. 一种通信系统,其特征在于,包括如权利要求1至12中任一项所述的网络设备。
  74. 一种通信系统,其特征在于,包括如权利要求13所述的终端设备。
  75. 一种通信系统,其特征在于,包括如权利要求14至25中任一项所述的网络设备。
  76. 一种通信系统,其特征在于,包括如权利要求26所述的网络设备。
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