WO2019084842A1 - Dispositif et procédé de communication sans fil - Google Patents

Dispositif et procédé de communication sans fil Download PDF

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Publication number
WO2019084842A1
WO2019084842A1 PCT/CN2017/108917 CN2017108917W WO2019084842A1 WO 2019084842 A1 WO2019084842 A1 WO 2019084842A1 CN 2017108917 W CN2017108917 W CN 2017108917W WO 2019084842 A1 WO2019084842 A1 WO 2019084842A1
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WIPO (PCT)
Prior art keywords
frequency
frequency point
point information
number value
synchronization signal
Prior art date
Application number
PCT/CN2017/108917
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English (en)
Chinese (zh)
Inventor
张治�
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Oppo广东移动通信有限公司
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Publication date
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/CN2017/108917 priority Critical patent/WO2019084842A1/fr
Priority to CN201780049100.5A priority patent/CN109644418B/zh
Publication of WO2019084842A1 publication Critical patent/WO2019084842A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present application relates to the field of communications and, more particularly, to a method and apparatus for wireless communication.
  • a network device may send a Synchronization Signal Block (SSB) to a terminal device, and each synchronization signal block may include a Primary Synchronization Signal (PSS) and a secondary synchronization.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Physical Broadcasting Channel
  • the terminal device can search for the SS block in the system bandwidth to obtain the cell identifier (Identifier, ID), time-frequency synchronization, acquire PBCH information, and perform radio resource management based on the SSS and the Demodulation Reference Signal (DMRS) of the PBCH (Radio).
  • DMRS Demodulation Reference Signal
  • RRM Resource Management
  • the embodiment of the present application provides a wireless communication method and device, which can enable a network device to accurately know the frequency of a synchronization signal block searched by the terminal device.
  • a wireless communication method including:
  • the terminal device sends the first frequency point information to the network device.
  • the network device may obtain the frequency of the synchronization signal block based on the frequency information of the detected synchronization signal block reported by the terminal device, and based on the implementation manner, the terminal device can be accurately detected.
  • the frequency point information of the sync signal block may be obtained.
  • the terminal device sends the first frequency point information to the network device, including:
  • the terminal device sends the first frequency point information to the network device by using the message 3MSG3 or the radio resource control RRC signaling in the random access procedure.
  • the first frequency information is carried in:
  • the first frequency point information includes a frequency value of a frequency point of the first synchronization signal block.
  • the first frequency point information is used to indicate a frequency point of the first synchronization signal block and a remaining minimum system information RMSI The first frequency domain offset between the frequencies.
  • the first frequency point information includes a frequency value of the first frequency domain offset, or includes a first frequency domain offset Move the corresponding number value.
  • the physical broadcast channel in the first synchronization signal block carries the second frequency point information, and the second frequency point information a second frequency domain offset between a frequency point indicating a first synchronization signal block and a frequency point of the RMSI;
  • the terminal device determines the first frequency information of the detected first synchronization signal block, including:
  • the terminal device determines the first frequency point information based on the second frequency point information.
  • the second frequency point information includes a number value corresponding to the second frequency domain offset
  • the terminal device is based on the second frequency Point information to determine the first frequency point information, including:
  • the terminal device determines the first frequency point information based on the number value included in the second frequency point information.
  • the determining, by the terminal device, the first frequency point information, based on the number value included in the second frequency point information includes:
  • the number value included in the second frequency point information is determined as the number value included in the first frequency point information.
  • the determining, by the terminal device, the first frequency point information, based on the number value included in the second frequency point information includes:
  • a physical broadcast letter Determining a physical broadcast letter according to a relationship between a plurality of first number values and a plurality of second number values The first number value corresponding to the number value included in the track, wherein, in the association relationship, the second number value is a number value that can be carried in the physical broadcast channel;
  • the determined first number value is used as the number value included in the first frequency point information.
  • the determining, by the terminal device, the first frequency point information, based on the number value included in the second frequency point information includes:
  • the determined frequency value is taken as the frequency value included in the first frequency point information.
  • the determining, by the terminal device, the first frequency point information, based on the number value included in the second frequency point information includes:
  • the determined first number value is used as the number value included in the first frequency point information.
  • a wireless communication method including:
  • the network device determines a frequency point of the first synchronization signal block according to the first frequency point information.
  • the network device may obtain the frequency of the synchronization signal block based on the frequency information of the detected synchronization signal block reported by the terminal device, and based on the implementation manner, the terminal device can be accurately detected.
  • the frequency point information of the sync signal block may be obtained.
  • the first frequency point information is carried in the message 3MSG3 or the radio resource control RRC signaling in the random access procedure.
  • the first frequency information is carried in:
  • the first frequency point information includes a frequency value of a frequency point of the first synchronization signal block.
  • the first frequency point information is used to indicate a frequency point of the first synchronization signal block and remaining minimum system information RMSI a first frequency domain offset between frequency points;
  • the network device determines, according to the first frequency point information, a frequency point of the first synchronization signal block, including:
  • the network device determines the frequency point of the first synchronization signal block according to the first frequency domain offset and the frequency of the RMSI.
  • the first frequency point information includes a frequency value of the first frequency domain offset.
  • the first frequency point information includes a number value corresponding to the first frequency domain offset.
  • the first frequency point information includes a number value corresponding to the frequency domain offset of the first relative frequency position relationship;
  • the device determines, according to the first frequency point information, a frequency point of the first synchronization signal block, including:
  • the frequency point of the first sync signal block is determined based on the determined frequency value and the frequency of the RMSI.
  • the network device determines, according to the first frequency point information, a frequency point of the first synchronization signal block, including:
  • the frequency point of the first sync signal block is determined based on the determined frequency value and the frequency of the RMSI.
  • the network device determines, according to the first frequency point information, a frequency point of the first synchronization signal block, including:
  • a frequency domain offset of the first relative frequency positional relationship according to an association relationship between frequency values of frequency domain offsets of the plurality of first numbered values and the plurality of first relative frequency positional relationships, and a number value included by the RMSI a frequency value, wherein the first number value is a number value that can be carried in the first frequency point information;
  • the frequency point of the first sync signal block is determined according to the frequency value of the frequency domain offset of the second relative frequency positional relationship and the frequency point of the RMSI.
  • the method further includes:
  • the network device determines the first synchronization signal block as a synchronization signal block of the defined cell of the terminal device.
  • the method further includes:
  • a terminal device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the terminal device comprises functional modules for performing the method of the first aspect or any of the possible implementations of the first aspect described above.
  • a network device for performing the method of any of the foregoing second aspect or any of the possible implementations of the second aspect.
  • the network device comprises functional modules for performing the method of any of the possible implementations of the second aspect or the second aspect described above.
  • a terminal device including a processor, a memory, and a transceiver. Communicating between the processor, the memory and the transceiver via internal connection paths, communicating control and/or data signals, such that the terminal device performs the first aspect or any of the possible implementations of the first aspect method.
  • a network device including a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver communicate with one another via internal connection paths, passing control and/or data signals, such that the network device performs the method of any of the second or second aspect of the second aspect described above.
  • a computer readable medium for storing a computer program, the computer program comprising instructions for performing any one of the methods described above or any possible implementation.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of any one of the above methods or any of the possible implementations.
  • FIG. 1 is a schematic diagram of a wireless communication system in accordance with an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of frequency domain offset between PBCH and RMSI in accordance with an embodiment of the present application.
  • FIG. 4 is a schematic diagram of frequency domain offset between PBCH and RMSI in accordance with an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a system chip in accordance with an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication device in accordance with an embodiment of the present application.
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 can include a network device 110.
  • Network device 100 can be a device that communicates with a terminal device.
  • the internet Device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110.
  • Terminal device 120 can be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a functional handheld device a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, or the like.
  • D2D device to device communication
  • D2D device to device
  • the 5G system or network may also be referred to as a New Radio (NR) system or network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.
  • the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.
  • network entities such as a network controller, a mobility management entity, and the like.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and A and B exist separately. There are three cases of B.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • the network device may send a synchronization signal block to the terminal device, and each synchronization signal block may include a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a physical broadcast channel. (Physical Broadcasting Channel, PBCH).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Physical Broadcasting Channel
  • the network device may separately send at least one synchronization signal block at each of the at least one frequency point.
  • terminal devices with multiple working bandwidths are distributed in the same system broadband component carrier due to different usage scenarios and different cost considerations. For example, if the system bandwidth is 400 MHz, terminal devices with a bandwidth of 400 MHz may be distributed, and terminal devices with a bandwidth of 100 MHz, 40 MHz, and 10 MHz may also be available. Thus, if there is only one Synchronization Signal Block (SSB) location within the system broadband component carrier, the terminal device with a smaller working bandwidth may not have an SS block within its working bandwidth.
  • SSB Synchronization Signal Block
  • the terminal device needs to receive the SS block for time-frequency synchronization, RRM measurement, and reading the PBCH, it needs to be frequency-modulated to the frequency position where the SS block is located.
  • the propagation characteristics of different frequency locations may vary greatly. For example, there are large differences in the path loss between the high frequency band and the low frequency band of the broadband component carrier.
  • the network device can separately transmit the synchronization signal block at a plurality of frequency points.
  • different synchronization signal blocks may be transmitted by using different beams.
  • the PBCH included in the synchronization signal block may indicate an RMSI corresponding to the synchronization signal block, where the RMSI may include a physical random access channel required for performing a random access procedure when accessing the synchronization signal block.
  • RMSI Physical Random Access Channel
  • PRACH Physical Random Access Channel
  • the RMSI corresponding to the synchronization signal block may also carry other information, which is not specifically limited in this embodiment of the present application.
  • the SSB and the RMSI may have a many-to-one relationship, that is, the SSBs at multiple frequency points correspond to the same RMSI.
  • the terminal device can search for the SS block within the system bandwidth to obtain the cell identifier (Identifier, ID), time and frequency. Steps: Obtain PBCH information, and perform Radio Resource Management (RRM) measurement based on SSS and PBCH Demodulation Reference Signal (DMRS).
  • RRM Radio Resource Management
  • the synchronization signal block may be determined as the synchronization signal block of the defined cell of the terminal device. And further, based on the synchronization signal block of the defined cell, the frequency domain reference point, the resource allocation, the bandwidth part configuration or the scheduling performed on the terminal device may be determined.
  • the following describes how to make the network device know the frequency of the sync signal block detected by the terminal device.
  • FIG. 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.
  • the method 200 includes at least some of the following.
  • the terminal device determines the first frequency point information of the detected first synchronization signal block.
  • the terminal device sends the first frequency point information to the network device.
  • the terminal device sends the first frequency point information to the network device by using a message 3 (MSG3) or a radio resource control (RRC) signaling in a random access procedure.
  • MSG3 message 3
  • RRC radio resource control
  • the first frequency point information is carried in: RRC signaling (eg, RRC Connection Request) in the MSG3 in the random access procedure, or media access control in the MSG3 (Media Access Control, MAC) in the Control Element (CE); or,
  • the RRC Connection Setup Complete message (RRCConnectionSetupComplete), the RRC Connection Reestablishment Complete message (RRCConnectionReestablishmentComplete), or the Full Activation Complete message (SecurityModeComplete) after the message 4 (MSG4) in the random access procedure.
  • the network device receives the first frequency point information of the first synchronization signal block sent by the terminal device.
  • the network device determines a frequency point of the first synchronization signal block according to the first frequency point information.
  • the first frequency point information includes a frequency value of a frequency point of the first synchronization signal block.
  • the first synchronization signal when the terminal device detects the first synchronization signal block, the first synchronization signal may be used.
  • the frequency value of the absolute frequency of the block is informed to the network device, so that the network device can directly obtain the frequency of the first synchronization signal block according to the reporting of the terminal device.
  • the first frequency point information is used to indicate a first frequency domain offset between a frequency point of the first synchronization signal block and a frequency point of the corresponding RMSI.
  • the network device may obtain a frequency domain offset between a frequency point of the first synchronization signal block and a frequency point of the corresponding RMSI, because the frequency of the RMSI is for the network device. It may be known that the network device can thereby know the frequency of the first synchronization signal block.
  • the network device may determine the frequency of the RMSI by receiving a PRACH signal sent by the terminal device (for example, message 1 (MSG1) in the random access procedure to obtain an RMSI for configuring the PRACH resource.
  • a PRACH signal sent by the terminal device for example, message 1 (MSG1) in the random access procedure to obtain an RMSI for configuring the PRACH resource.
  • the frequency of the SSB may be any one of the frequency points occupied by the SSB, for example, may be the center frequency of the SSB, or the frequency or maximum corresponding to the smallest physical resource block (PRB).
  • the PRB corresponds to the frequency point and so on.
  • the frequency of the RMSI may be any of the frequency points of the RMSI control resource set (eg, Control Resource Set, CORESET), for example, the center frequency of the RMSI CORESET; or the frequency corresponding to the RMSI CORESET minimum PRB. Point or RMSI CORESET maximum PRB corresponding frequency point, etc.
  • RMSI control resource set eg, Control Resource Set, CORESET
  • the frequency of the RMSI may be any one of the frequency points of the RMSI Physical Downlink Shared Channel (PDSCH), for example, the center frequency of the RMSI PDSCH, or the frequency corresponding to the RMSI PDSCH minimum PRB. Point, or the frequency point corresponding to the largest PRB of the RMSI PDSCH.
  • PDSCH Physical Downlink Shared Channel
  • the first frequency domain offset may be a frequency domain offset of the frequency point of the RMSI relative to a frequency point of the first synchronization signal block.
  • the reference point for obtaining the first frequency domain offset may be The frequency of the first sync signal block.
  • the frequency domain offset of the RMSI relative to the SSB frequency point 1 is the frequency domain offset 1
  • the frequency domain offset of the RMSI relative to the SSB frequency point 2 is the frequency domain offset 2
  • the frequency domain offset of the RMSI relative to the SSB frequency point 3 is the frequency domain offset 3
  • the frequency domain offset of the RMSI relative to the SSB frequency point 4 is the frequency domain offset 4.
  • the first frequency domain offset may be a frequency domain offset of a frequency point of the first synchronization signal block relative to a corresponding RMSI frequency.
  • the reference point for obtaining the first frequency domain offset may be The frequency of RMSI.
  • the PBCH in the first synchronization signal block carries second frequency point information, where the second frequency point information is used to indicate a second between the frequency point of the first synchronization signal block and the frequency point of the RMSI Frequency domain offset; the terminal device may determine the first frequency point information based on the second frequency point information.
  • the second frequency point information is used to indicate: a second frequency domain offset between a frequency point of the first synchronization signal block and a frequency point of the RMSI.
  • the second frequency domain offset may be a frequency domain offset of the frequency point of the first synchronization signal block relative to the frequency of the RMSI.
  • the reference point for obtaining the second frequency domain offset may be the RMSI. Frequency point.
  • the second frequency domain offset may be an offset of a frequency point of the RMSI with respect to a frequency point of the first synchronization signal block.
  • the reference point for obtaining the second frequency domain offset may be the first synchronization.
  • the network device may search for a corresponding frequency offset (ie, a frequency domain offset) corresponding to the number of the indication bit in the PBCH, and carry it in the PBCH. For example, as shown in Table 1 below.
  • the relative frequency positional relationship between the frequency points when the first frequency domain offset is obtained is the same as the relative frequency positional relationship between the frequency points when the second frequency domain offset is obtained.
  • the first frequency domain offset is a frequency domain offset of a frequency point of the synchronization signal block relative to the frequency point of the RMSI
  • the second frequency domain offset is a frequency point of the synchronization signal block relative to a frequency point of the RMSI.
  • a frequency domain offset; or the first frequency domain offset may be an offset of a frequency point of the RMSI relative to a frequency point of the synchronization signal block
  • the second frequency domain offset may be a frequency point of the RMSI relative to the synchronization The offset of the frequency of the signal block.
  • the relative frequency positional relationship between the frequency points when the first frequency domain offset is obtained is different from the relative frequency positional relationship between the frequency points when the second frequency domain offset is obtained.
  • the first frequency domain offset is a frequency domain offset of a frequency point of the synchronization signal block relative to the frequency point of the RMSI
  • the second frequency domain offset may be a frequency point of the RMSI relative to the synchronization signal block.
  • Frequency Offset of the point or, the first frequency domain offset may be an offset of a frequency point of the RMSI relative to a frequency point of the synchronization signal block, and the second frequency domain offset is a relative frequency of the synchronization signal block
  • the frequency domain offset of the frequency of the RMSI is a frequency domain offset of a frequency point of the synchronization signal block relative to the frequency point of the RMSI.
  • the first frequency point information may indicate the first frequency domain offset by carrying a frequency value of the first frequency domain offset, or may carry a number value corresponding to the frequency value of the first frequency domain offset to indicate The first frequency domain offset.
  • the second frequency point information may indicate the second frequency domain offset by carrying a frequency value of the second frequency domain offset, or may carry a number value corresponding to the frequency value of the second frequency domain to indicate the first A frequency domain offset.
  • the first frequency point information and the second frequency point information have been separately introduced above. The following describes how to obtain the first frequency point information based on the second frequency point information.
  • the bit value of the first frequency point information is equal to the The bit value of the second frequency point information is taken.
  • the first frequency point information and the second frequency point information respectively carry the value of the frequency domain offset
  • the bit value of the first frequency point information and the bit value of the second frequency point information may be the same.
  • the first frequency point information and the second frequency point information respectively carry the number value of the frequency domain offset, and the bit value of the first frequency point information and the bit value of the second frequency point information may be the same.
  • the relative frequency position relationship corresponding to the first frequency domain offset and the relative frequency position relationship corresponding to the second frequency domain offset may be the same.
  • the relative frequency positional relationship corresponding to the first frequency domain offset and the relative frequency positional relationship corresponding to the second frequency domain offset may be opposite.
  • the terminal device determines the first frequency point information based on the number value included in the second frequency point information.
  • the number value included in the second frequency point information may be determined as the number value included in the first frequency point information.
  • the frequency point information about the SSB frequency point 1 may be multiplexed with the frequency offset bit of the RMSI relative to the PBCH indicated by the PBCH in the SSB frequency point 1: 11; the frequency point of the SSB frequency point 2
  • the information may multiplex the frequency offset bits of the RMSI relative to the PBCH indicated by the PBCH in the SSB frequency point 2: 10; the frequency point information about the SSB frequency point 3 may multiplex the frequency of the RMSI relative to the PBCH indicated by the PBCH in the SSB frequency point 3.
  • the frequency point information about the SSB frequency point 4 can be multiplexed with the frequency of the RMSI indicated by the PBCH in the SSB frequency point 4 relative to the PBCH Rate offset bit: 00.
  • the specific table can be as shown in Table 2 below.
  • the number value is a number value that can be carried in the physical broadcast channel; the determined first number value is used as the number value included in the first frequency point information.
  • the corresponding numbers may be different.
  • the frequency domain offset corresponding to the first frequency point information is an offset of the frequency point of the synchronization signal block relative to the frequency point of the RMSI
  • the frequency domain offset corresponding to the second frequency point information is the frequency point of the RMSI relative to the synchronization signal block. The offset of the frequency point.
  • the frequency domain offset corresponding to the first frequency point information is an offset of the frequency point of the RMSI relative to the frequency point of the synchronization signal block
  • the frequency domain offset corresponding to the second frequency point information is the frequency point relative to the RMSI of the synchronization signal block. The offset of the frequency point.
  • the correspondence between the plurality of first number values and the plurality of second number values may be as shown in Table 3 below.
  • the number value of the PBCH in the synchronization signal block may indicate an offset between a frequency point of the synchronization signal block and a frequency point of the RMSI, or an offset between a frequency point of the RMSI and a frequency point of the synchronization signal block
  • the terminal device may search for the frequency value of the corresponding offset based on the number value included in the PBCH, and report the frequency value to the network device, so that the network may be based on the frequency value and the frequency of the RMSI.
  • the frequency point of the sync signal block is obtained.
  • the relationship between the plurality of number values and the frequency values of the plurality of frequency domain offsets may be as shown in Table 4, wherein the frequency offset in the first frequency point information may be the frequency point of the synchronization signal block relative to the PBCH.
  • the frequency domain offset of the frequency point may also be the frequency domain offset of the frequency point of the PBCH relative to the frequency point of the synchronization signal block.
  • the first relative frequency positional relationship may be a positional relationship of a frequency point of the synchronization signal block with respect to a frequency point of the first system information
  • the second relative frequency positional relationship may be a positional relationship of the frequency point of the first system information with respect to the synchronization signal block.
  • the first relative frequency positional relationship may be a positional relationship of a frequency point of the first system information with respect to a frequency point of the synchronization signal block
  • the second relative frequency positional relationship may be a positional relationship of a frequency point of the synchronization signal block with respect to the first system information.
  • the second association relationship between the frequency values of the frequency domain offsets of the plurality of second number values and the plurality of second relative frequency position relationships may be as shown in Table 5 below.
  • the first association relationship between the frequency values of the frequency domain offsets of the plurality of first number values and the plurality of first relative frequency position relationships may be as shown in Table 6 below.
  • the above describes how the terminal device determines the implementation of the first frequency point information.
  • the following describes how the network device obtains the frequency of the synchronization signal block after receiving the frequency point information.
  • the first frequency point information includes a number value corresponding to a frequency domain offset of the first relative frequency position relationship
  • the network device associates the plurality of first number values with the plurality of second number values. Determining a second number value corresponding to the number value included in the first frequency point information, wherein, in the association relationship, the first number value is a number value that can be carried in the first frequency point information, the first The second number value is a number value that can be carried in the PBCH; the synchronization signal block is determined based on the determined second number value, and an association relationship between the plurality of second number values and frequency values of the plurality of frequency domain offsets The frequency value of the frequency domain offset of the second relative frequency position between the frequency point and the frequency point of the RMSI; determining the frequency point of the first synchronization signal block based on the determined frequency value and the frequency point of the RMSI.
  • the relative frequency position relationship of the frequency domain offset corresponding to the number value included in the first frequency point information may be different from the relative frequency position of the frequency domain offset corresponding to the number value included in the second frequency point information, and the first frequency point is The number value corresponding to the information may be different from the number value corresponding to the second frequency point information.
  • the association relationship on the network device may include the following Table 7 and Table 8:
  • the network device determines the frequency of the synchronization signal block according to the relationship between the plurality of number values and the frequency values of the plurality of frequency domain offsets, and the number value included in the first frequency point information.
  • the association relationship the relationship between the frequency offset and the number under a specific relative frequency position relationship may be included.
  • the frequency of the synchronization signal block may be obtained under a specific relative frequency position relationship.
  • the frequency domain offset of the point and the frequency of the RMSI Since the frequency of the RMSI is known to the network device, the frequency of the sync signal block can be obtained.
  • the association relationship may be as shown in Table 9 or Table 10 below:
  • the frequency value of the frequency domain offset of the second relative frequency position relationship and the frequency value of the frequency domain offset of the first relative frequency position relationship may be opposite to each other.
  • the first relative frequency positional relationship may be a frequency positional relationship of a frequency point of the synchronization signal block relative to a frequency point of the first system information
  • the second relative frequency positional relationship may be a frequency of the first system information relative to the synchronization signal block.
  • the first relative frequency position relationship may be a frequency position relationship of a frequency point of the first system information with respect to a frequency point of the synchronization signal block
  • the second relative frequency position relationship may be a frequency of a frequency point of the synchronization signal block relative to the first system information. The frequency position relationship of the points.
  • the network device may obtain the frequency of the synchronization signal block based on the frequency information of the detected synchronization signal block reported by the terminal device, and based on the implementation manner, the terminal device can be accurately detected.
  • the frequency point information of the sync signal block may be obtained.
  • FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 300 includes a processing unit and a communication unit.
  • the processing unit 310 is configured to: determine first frequency information of the detected first synchronization signal block; and the communication unit 320 is configured to: Transmitting the first frequency point information to the network device.
  • terminal device 300 can implement corresponding operations implemented by the terminal device in the method 200, and details are not described herein for brevity.
  • FIG. 6 is a schematic block diagram of a network device 400 in accordance with an embodiment of the present application.
  • the network device 400 includes a communication unit 410 and a processing unit 420.
  • the communication unit 410 is configured to: receive first frequency point information of the first synchronization signal block that is sent by the terminal device, where the processing unit 420 is configured to: determine, according to the first frequency point information, the first synchronization The frequency of the signal block.
  • the network device 400 can implement corresponding operations implemented by the network device in the method 200. For brevity, details are not described herein again.
  • FIG. 7 is a schematic structural diagram of a system chip 600 according to an embodiment of the present application.
  • the system chip 600 of FIG. 7 includes an input interface 601, an output interface 602, the processor 603, and a memory 604 that can be connected by an internal communication connection line, and the processor 603 is configured to execute code in the memory 604.
  • the processor 603 when the code is executed, the processor 603 implements a method performed by a network device in a method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 603 when the code is executed, the processor 603 implements a method performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • FIG. 8 is a schematic block diagram of a communication device 700 in accordance with an embodiment of the present application.
  • the communication device 700 includes a processor 710 and a memory 720.
  • the memory 720 can store program code, and the processor 710 can execute the program code stored in the memory 720.
  • the communication device 700 can include a transceiver 730 that can control the transceiver 730 to communicate externally.
  • the processor 710 can call the program code stored in the memory 720 to perform the corresponding operations of the network device in the method embodiment.
  • the processor 710 can call the program code stored in the memory 720 to perform the corresponding operations of the network device in the method embodiment.
  • the processor 710 can call the program code stored in the memory 720 to perform the corresponding operations of the terminal device in the method embodiment.
  • the processor 710 can call the program code stored in the memory 720 to perform the corresponding operations of the terminal device in the method embodiment.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • 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 or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments 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 may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory may be a random access memory (RAM), which is used as External cache.
  • RAM random access memory
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • Synchronous DRAM synchronous dynamic random access memory
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • 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, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisations de la présente invention concernent un dispositif et un procédé de communication sans fil, qui peuvent informer précisément un dispositif de réseau de points de fréquence d'un bloc de signal de synchronisation obtenu par un dispositif terminal par recherche. Ledit procédé comprend les étapes suivantes : un dispositif terminal détermine des premières informations de point de fréquence du premier bloc de signal de synchronisation détecté ; et le dispositif terminal envoie les premières informations de point de fréquence à un dispositif de réseau.
PCT/CN2017/108917 2017-11-01 2017-11-01 Dispositif et procédé de communication sans fil WO2019084842A1 (fr)

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