WO2021083140A1 - Ssb的接收方法及装置 - Google Patents

Ssb的接收方法及装置 Download PDF

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Publication number
WO2021083140A1
WO2021083140A1 PCT/CN2020/123957 CN2020123957W WO2021083140A1 WO 2021083140 A1 WO2021083140 A1 WO 2021083140A1 CN 2020123957 W CN2020123957 W CN 2020123957W WO 2021083140 A1 WO2021083140 A1 WO 2021083140A1
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Prior art keywords
cell
ssb
coverage
coverage enhancement
identity
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PCT/CN2020/123957
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English (en)
French (fr)
Inventor
夏亮
王飞
胡丽洁
吴丹
张轶
Original Assignee
中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2021083140A1 publication Critical patent/WO2021083140A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of wireless communication technology, and in particular to a method and device for receiving SSB.
  • the coverage is enhanced by introducing beam scanning, and the terminal selects a suitable beam for access according to its location. After the cell access is completed, the terminal-specific beam can be further used for service channel transmission, making full use of the advantages of large-scale antennas to achieve the demand for NR coverage.
  • NR New Radio
  • NR hierarchical coverage design strategy that is, support coverage enhancement in part of the beam directions or all beam directions of the NR.
  • synchronization signal synchronization signal
  • PBCH Physical Broadcast Channel
  • the terminal In order for the terminal to recognize whether coverage enhancement is used in the current initial access process during the access process, only when it is confirmed that the coverage enhancement mode is adopted, can it synchronize and receive the broadcast channel in the enhanced mode.
  • Method 1 Detect the synchronization channel first, then detect the coverage enhancement indication message, identify whether the coverage enhancement detection can be performed, and then detect the PBCH and subsequent channels.
  • Manner 2 First detect the coverage enhancement indication message, and then perform the synchronization broadcast channel detection.
  • the synchronization channel cannot enjoy the benefits of coverage enhancement. Therefore, as the number of dBs that need to be enhanced increases, the terminal needs to combine synchronization signals of multiple SSB periods to obtain the accumulated synchronization signal energy. Therefore, the time delay for obtaining synchronization is relatively large. At the same time, as the synchronization window becomes longer, more data needs to be cached.
  • the advantage is that the detection of the coverage enhancement indication message is relatively simple, and the coverage enhancement indication message is only detected when the raster is determined to have the synchronization signal.
  • Solution 2 first detects the coverage enhancement indication message, and the terminal first searches for the coverage enhancement indication message.
  • the coverage enhancement indication message should be as concentrated as possible, and the detection reliability should be high.
  • the coverage enhancement indication message is used at least to indicate the coverage level, the number of SSB repetitions is determined according to the coverage level, and the terminal combines and receives corresponding SSBs according to the number of SSB repetitions.
  • the terminal will receive it according to the normal SSB reception mode. However, if there are multiple cells around the terminal, and at least one of the cells has sent the coverage enhancement indication message, it will cause the terminal to follow the coverage enhancement indication message. In this way, the SSBs of all cells are combined and received separately, which will cause the SSBs of the cells without coverage enhancement to be combined by mistake or be combined unnecessarily, resulting in access failure, increased access delay, or terminal power consumption increase.
  • the terminal may also receive the SSB of the high coverage cell according to the combined reception mode of the low coverage level, resulting in access failure; or the terminal needs to be based on all possible coverage levels.
  • the combined reception of the SSB of each cell results in an increase in access delay, an increase in terminal power consumption, or an increase in terminal complexity.
  • the technical problem to be solved by the present disclosure is to provide an SSB receiving method and device, which can reduce the access delay and reduce the power consumption of the terminal.
  • the embodiment of the present disclosure provides a method for receiving SSB, which is applied to a terminal, and includes:
  • the repeated transmission mode of the synchronization signal block SSB corresponding to the first cell is determined according to the coverage level, and the SSB is received according to the repeated transmission mode.
  • the coverage enhancement indication message includes cell identity set indication information, and also includes coverage level indication information corresponding to the cell identity set indicated by the cell identity set indication information.
  • acquiring the identity of the first cell includes:
  • acquiring the identity of the first cell includes:
  • obtaining the coverage level of the first cell includes:
  • the coverage level corresponding to the cell identity set to which the identity of the first cell belongs is taken as the coverage level of the first cell.
  • the repeated sending manner includes at least one of the following:
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the coverage enhancement indication message is configured for at least one of the following:
  • the coverage level and the cell identity set adopt joint coding or independent coding.
  • the coverage enhancement indication message is received according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides a method for receiving SSB, which is applied to a network side device, and includes:
  • the coverage enhancement indication message includes cell identity set indication information, and also includes coverage level indication information corresponding to the cell identity set indicated by the cell identity set indication information.
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the coverage enhancement indication message is sent according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides an SSB receiving device, which is applied to a terminal, and includes:
  • the receiving module is used to receive the coverage enhancement instruction message of the network side device
  • a determining module configured to determine a set of cell identities and a coverage level corresponding to the set of cell identities according to the coverage enhancement instruction message;
  • An acquiring module configured to acquire the identity of at least one first cell and the coverage level of the first cell, wherein the identity of the first cell belongs to the set of cell identities;
  • the processing module is configured to determine a repeated transmission mode of the synchronization signal block SSB corresponding to the first cell according to the coverage level, and receive the SSB according to the repeated transmission mode.
  • the coverage enhancement indication message includes cell identification set indication information, and also includes coverage level indication information corresponding to the cell identification set indicated by the cell identification set indication information.
  • the obtaining module is specifically configured to:
  • the obtaining module is specifically configured to:
  • the determining module is specifically configured to:
  • the coverage level corresponding to the cell identity set to which the identity of the first cell belongs is taken as the coverage level of the first cell.
  • the repeated sending manner includes at least one of the following:
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the coverage enhancement indication message is configured for at least one of the following:
  • the coverage level and the cell identity set adopt joint coding or independent coding.
  • the receiving module receives the coverage enhancement indication message according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides an SSB receiving device, which is applied to a terminal and includes a processor and a transceiver,
  • the transceiver is used to receive a coverage enhancement instruction message from a network side device
  • the processor is configured to determine a set of cell identities and a coverage level corresponding to the set of cell identities according to the coverage enhancement instruction message; obtain the identity of at least one first cell and the coverage level of the first cell, wherein the first The identity of the cell belongs to the set of cell identities; the repeated transmission mode of the synchronization signal block SSB corresponding to the first cell is determined according to the coverage level, and the SSB is received according to the repeated transmission mode.
  • the coverage enhancement indication message includes cell identification set indication information, and also includes coverage level indication information corresponding to the cell identification set indicated by the cell identification set indication information.
  • the processor is specifically configured to:
  • the processor is specifically configured to:
  • the processor is specifically configured to:
  • the coverage level corresponding to the cell identity set to which the identity of the first cell belongs is taken as the coverage level of the first cell.
  • the repeated sending manner includes at least one of the following:
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the coverage enhancement indication message is configured for at least one of the following:
  • the coverage level and the cell identity set adopt joint coding or independent coding.
  • the transceiver receives the coverage enhancement indication message according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides an SSB receiving device, which is applied to a network side device, and includes:
  • the sending module is configured to send a coverage enhancement instruction message to the terminal, so that the terminal determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message.
  • the coverage enhancement indication message includes cell identification set indication information, and also includes coverage level indication information corresponding to the cell identification set indicated by the cell identification set indication information.
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the sending module is specifically configured to send the coverage enhancement indication message according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides an SSB receiving device, which is applied to a network side device and includes a processor and a transceiver,
  • the transceiver is configured to send a coverage enhancement instruction message to the terminal, so that the terminal determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message.
  • the coverage enhancement indication message includes cell identification set indication information, and also includes coverage level indication information corresponding to the cell identification set indicated by the cell identification set indication information.
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the transceiver is specifically configured to send the coverage enhancement indication message according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides a receiving device for SSB, including: a memory, a processor, and a computer program stored in the memory and running on the processor.
  • a receiving device for SSB including: a memory, a processor, and a computer program stored in the memory and running on the processor.
  • the embodiments of the present disclosure also provide a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps in the above-mentioned SSB receiving method are realized.
  • the terminal receives the coverage enhancement instruction message from the network side device, determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message, and obtains the identity of at least one first cell and the coverage level of the first cell, where The identity of the first cell belongs to the set of cell identities, the repetitive transmission mode of the synchronization signal block SSB corresponding to the first cell is determined according to the coverage level, and the SSB is received according to the repetitive transmission mode.
  • the terminal receives the SSB according to the coverage enhancement indication message, which can reduce the access delay, reduce the power consumption of the terminal, and reduce the complexity of the terminal.
  • Figure 1 is a schematic diagram of configuring different SSB transmission formats on different frequency domain positions of a carrier
  • FIG. 2 is a schematic flowchart of a method for receiving an SSB applied to a terminal according to an embodiment of the disclosure
  • FIG. 3 is a schematic flowchart of a method for receiving an SSB applied to a network side device according to an embodiment of the disclosure
  • FIG. 4 is a structural block diagram of an SSB receiving device applied to a terminal according to an embodiment of the disclosure
  • FIG. 5 is a schematic diagram of the composition of a terminal according to an embodiment of the disclosure.
  • FIG. 6 is a structural block diagram of an SSB receiving apparatus applied to a network side device according to an embodiment of the disclosure
  • FIG. 7 is a schematic diagram of the composition of a network side device in an embodiment of the disclosure.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Single-carrier Frequency-Division Multiple Access
  • the terms "system” and “network” are often used interchangeably.
  • the CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA).
  • UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
  • the TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM).
  • the OFDMA system can implement radios such as UltraMobile Broadband (UMB), Evolution-UTRA (Evolution-UTRA, E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. technology.
  • UMB UltraMobile Broadband
  • Evolution-UTRA Evolution-UTRA
  • E-UTRA Evolution-UTRA
  • IEEE 802.11 Wi-Fi
  • IEEE 802.16 WiMAX
  • IEEE 802.20 Flash-OFDM
  • Flash-OFDM Flash-OFDM
  • UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS).
  • LTE and more advanced LTE such as LTE-A
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP).
  • CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2).
  • 3GPP2 3rd Generation Partnership Project 2
  • the techniques described in this article can be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies.
  • the following description describes the NR system for exemplary purposes, and NR terminology is used in most of the following description, although these techniques can also be applied to applications other than NR system applications.
  • the network planning aims at seamless coverage for deployment design, due to the differences in the propagation environment in various directions in the actual deployment environment, such as the existence of obstructions in a certain direction, the propagation loss will be large. Avoid the problem of short coverage in the corresponding propagation direction.
  • the coverage distance is much longer than The distance to the building. In this case, the most direct solution to expand coverage is to add cells or deploy relay equipment. This method is simple and straightforward, but it also means higher equipment costs and maintenance costs.
  • Enhanced Mobile Broadband eMBB
  • Massive Machine Type Communications mMTC
  • Ultra Reliable Low Latency Communications uRLLC
  • eMBB Enhanced Mobile Broadband
  • mMTC Massive Machine Type Communications
  • uRLLC Ultra Reliable Low Latency Communications
  • a NR hierarchical coverage design strategy is proposed, that is, to support coverage enhancement in part of the beam directions or all beam directions of NR.
  • the basic principle is to reuse the NR protocol, support backward compatibility, introduce coverage enhancement designs in some beam directions, and enhance coverage through protocol upgrades rather than equipment deployment.
  • the coverage enhancement design must take into account the low-cost requirements of the Internet of Things, support variable transmission rates, and expand coverage enhancement in some directions to support coverage enhancement of the entire cell, thereby realizing NR's support for Internet of Things services.
  • mMTC users need to obtain large coverage gains, they need to combine the synchronization and broadcast signals to receive.
  • the current design of NR synchronization signal can only support the combination of broadcast signals within 80ms. According to the assumption that the terminal will search for synchronization and broadcast signals at a period of 20ms when the terminal is initially connected, it can only get a combined gain of 6dB at most, which is difficult to meet all broadcast signals. Cover the user’s coverage enhancement needs.
  • synchronization signal block Physical Broadcast Channel
  • the normal SSB for full coverage is configured at frequency domain position 1.
  • the beams corresponding to different SSB indexes are configured. It may be different; the SSB used for coverage enhancement is configured at frequency domain position 2.
  • the beam corresponding to a different SSB index may be a beam that is repeatedly sent in a certain direction, and is located under the coverage of the beam.
  • the terminal can search for the SSB at position 2 in the frequency domain, and perform combined reception to enjoy the enhanced coverage gain.
  • the combined reception of SSB can be divided into the following categories:
  • NR supports that SSBs under the same index between different 20ms within 80ms can be merged, and some indications can be added so that they can be merged directly without blind detection of the terminal.
  • the terminal SSB transmission period N ms such as 5 ms, 10 ms, and 20 ms, can be notified through a new indicator signal, which corresponds to 4 times, 2 times, and 1 combination of 20 ms, respectively.
  • the terminal In order for the terminal to recognize whether coverage enhancement is used in the current initial access process during the access process, only when it is confirmed that the coverage enhancement mode is adopted, can it synchronize and receive the broadcast channel in the enhanced mode.
  • Method 1 Detect the synchronization channel first, then detect the coverage enhancement indication message, identify whether the coverage enhancement detection can be performed, and then detect the PBCH and subsequent channels.
  • Manner 2 First detect the coverage enhancement indication message, and then perform the synchronization broadcast channel detection.
  • the synchronization channel cannot enjoy the benefits of coverage enhancement. Therefore, as the number of dBs that need to be enhanced increases, the terminal needs to combine synchronization signals of multiple SSB periods to obtain the accumulated synchronization signal energy, so the time delay for obtaining synchronization is relatively large. At the same time, as the synchronization window becomes longer, more data needs to be cached.
  • the advantage is that the detection of the coverage enhancement indication message is relatively simple, and the coverage enhancement indication message is only detected when the raster is determined to have the synchronization signal.
  • Solution 2 first detects the coverage enhancement indication message, and the terminal first searches for the coverage enhancement indication message.
  • the coverage enhancement indication message should be as concentrated as possible, and the detection reliability should be high.
  • the coverage enhancement indication message is used at least to indicate the coverage level, the number of SSB repetitions is determined according to the coverage level, and the terminal combines and receives corresponding SSBs according to the number of SSB repetitions.
  • the terminal will receive it according to the normal SSB reception mode. However, if there are multiple cells around the terminal, and at least one of the cells has sent the coverage enhancement indication message, it will cause the terminal to follow the coverage enhancement indication message. In this way, the SSBs of all cells are combined and received separately, which will cause the SSBs of the cells without coverage enhancement to be combined by mistake or be combined unnecessarily, resulting in access failure, increased access delay, or terminal power consumption increase.
  • the terminal may also receive the SSB of the high coverage cell according to the combined reception mode of the low coverage level, resulting in access failure; or the terminal needs to be based on all possible coverage levels.
  • the combined reception of the SSB of each cell results in an increase in access delay, an increase in terminal power consumption, or an increase in terminal complexity.
  • the embodiments of the present disclosure provide a method and device for receiving SSB, which can reduce the access delay and reduce the power consumption of the terminal.
  • the embodiment of the present disclosure provides a method for receiving SSB, which is applied to a terminal, as shown in FIG. 2, including:
  • Step 101 Receive a coverage enhancement instruction message from a network side device
  • Step 102 Determine a set of cell identities and a coverage level corresponding to the set of cell identities according to the coverage enhancement indication message;
  • Step 103 Obtain the identity of at least one first cell and the coverage level of the first cell, where the identity of the first cell belongs to the set of cell identities;
  • Step 104 Determine a repeated transmission mode of the synchronization signal block SSB corresponding to the first cell according to the coverage level, and receive the SSB according to the repeated transmission mode.
  • the terminal receives the coverage enhancement instruction message from the network side device, determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message, and obtains the identity of at least one first cell and the coverage level of the first cell, The identity of the first cell belongs to the set of cell identities, the repeated transmission mode of the synchronization signal block SSB corresponding to the first cell is determined according to the coverage level, and the SSB is received according to the repeated transmission mode.
  • the terminal receives the SSB according to the coverage enhancement indication message, which can reduce the access delay, reduce the power consumption of the terminal, and reduce the complexity of the terminal.
  • the coverage enhancement indication message includes cell identification set indication information, and also includes coverage level indication information corresponding to the cell identification set indicated by the cell identification set indication information.
  • acquiring the identity of the first cell includes:
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • acquiring the identity of the first cell includes:
  • obtaining the coverage level of the first cell includes:
  • the coverage level corresponding to the cell identity set to which the identity of the first cell belongs is taken as the coverage level of the first cell.
  • the repeated sending manner includes at least one of the following:
  • the coverage level indication information includes at least one of the following:
  • the coverage level indication information may include indication information of the number of repeated transmissions, the time domain/frequency domain resources of the repeated transmission, the maximum number of repeated transmissions, and the repeated transmission pattern.
  • the coverage enhancement level needs to be carried in the coverage level indication information.
  • the carried information may correspond to different repetition times. For example, repeat 2 times, 4 times, 8 times, 16 times...
  • the coverage enhancement indication message further includes at least one of the following:
  • ARFCN Absolute Radio Frequency Channel Number
  • the coverage enhancement indication message is configured for at least one of the following:
  • the coverage level and the cell identity set adopt joint coding or independent coding.
  • the cell ID set indication information can be any of the following:
  • the cell ID set contains of Where 0 ⁇ n ⁇ N, n and N are integers
  • the cell ID set contains of N is an integer defined in advance or configured by the network side device, m is an integer greater than or equal to 0 and less than or equal to M, and M is The maximum value of is divided by N and then rounded.
  • the coverage enhancement indication message needs to be able to carry 12 kinds of information, which can be distinguished by 12 orthogonal sequences.
  • 0,1,2,3 corresponds to the PSS of the cell 0, corresponding to 2, 4, 8, 16 repetition times;
  • 4, 5, 6, 7 correspond to the PSS of the cell Is 1, corresponding to 2, 4, 8, 16 repetition times;
  • the determining the cell identity set according to the coverage enhancement indication message includes at least one of the following:
  • N is an integer defined in advance or configured by the network side device, and n is an integer greater than or equal to 0 and less than N;
  • N is an integer defined in advance or configured by the network side device
  • m is an integer greater than or equal to 0 and less than or equal to M
  • M is The maximum value of is divided by N and then rounded.
  • the coverage enhancement indication message is received according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides a method for receiving SSB, which is applied to a network side device, as shown in FIG. 3, including:
  • Step 201 Send a coverage enhancement instruction message to a terminal, so that the terminal determines a cell identity set and a coverage level corresponding to the cell identity set according to the coverage enhancement instruction message.
  • the terminal receives the coverage enhancement instruction message from the network side device, and determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message. In this way, the terminal receives the SSB according to the coverage enhancement instruction message, which can reduce access Delay, reduce terminal power consumption and reduce terminal complexity.
  • the coverage enhancement indication message includes cell identification set indication information, and also includes coverage level indication information corresponding to the cell identification set indicated by the cell identification set indication information.
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the coverage enhancement indication message is configured for at least one of the following:
  • the coverage level and the cell identity set adopt joint coding or independent coding.
  • the set of cell identities meets at least one of the following:
  • the first part identities of the cell identities in the cell identities set are all the same, wherein the cell identities in the cell identity set are composed of the first part identities and the second part identities;
  • the second part identities of the cell identities in the cell identities set are all the same, wherein the cell identities in the cell identity set are composed of the first part identities and the second part identities;
  • N is an integer defined by the protocol or configured by the network side device, and n is an integer greater than or equal to 0 and less than N;
  • N is an integer defined by the protocol or configured by the network side device
  • m is an integer greater than or equal to 0 and less than or equal to M
  • M is The maximum value of is divided by N and then rounded.
  • the coverage enhancement indication message is sent according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides an SSB receiving device, which is applied to a terminal, as shown in FIG. 4, including:
  • the receiving module 31 is configured to receive a coverage enhancement instruction message from a network side device
  • the determining module 32 is configured to determine a set of cell identities and a coverage level corresponding to the set of cell identities according to the coverage enhancement instruction message;
  • the obtaining module 33 is configured to obtain the identity of at least one first cell and the coverage level of the first cell, where the identity of the first cell belongs to the set of cell identities;
  • the processing module 34 is configured to determine a repeated transmission mode of the synchronization signal block SSB corresponding to the first cell according to the coverage level, and receive the SSB according to the repeated transmission mode.
  • the terminal receives the coverage enhancement instruction message from the network side device, determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message, and obtains the identity of at least one first cell and the coverage level of the first cell, The identity of the first cell belongs to the set of cell identities, the repeated transmission mode of the synchronization signal block SSB corresponding to the first cell is determined according to the coverage level, and the SSB is received according to the repeated transmission mode.
  • the terminal receives the SSB according to the coverage enhancement indication message, which can reduce the access delay, reduce the power consumption of the terminal, and reduce the complexity of the terminal.
  • the coverage enhancement indication message includes cell identification set indication information, and also includes coverage level indication information corresponding to the cell identification set indicated by the cell identification set indication information.
  • the obtaining module is specifically configured to:
  • the obtaining module is specifically configured to:
  • the determining module is specifically configured to:
  • the coverage level corresponding to the cell identity set to which the identity of the first cell belongs is taken as the coverage level of the first cell.
  • the repeated sending manner includes at least one of the following:
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the coverage enhancement indication message is configured for at least one of the following:
  • the coverage level and the cell identity set adopt joint coding or independent coding.
  • the determining module is configured to perform at least one of the following:
  • N is an integer defined in advance or configured by the network side device, and n is an integer greater than or equal to 0 and less than N;
  • the receiving module receives the coverage enhancement indication message according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides an SSB receiving device, which is applied to a terminal, as shown in FIG. 5, which includes a processor 41 and a transceiver 42.
  • the transceiver 42 is configured to receive a coverage enhancement instruction message from a network side device
  • the processor 41 is configured to determine a set of cell identities and a coverage level corresponding to the set of cell identities according to the coverage enhancement instruction message; obtain the identity of at least one first cell and the coverage level of the first cell, wherein The identity of the first cell belongs to the set of cell identities; the repeated transmission mode of the synchronization signal block SSB corresponding to the first cell is determined according to the coverage level, and the SSB is received according to the repeated transmission mode.
  • the terminal receives the coverage enhancement instruction message from the network side device, determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message, and obtains the identity of at least one first cell and the coverage level of the first cell, The identity of the first cell belongs to the set of cell identities, the repeated transmission mode of the synchronization signal block SSB corresponding to the first cell is determined according to the coverage level, and the SSB is received according to the repeated transmission mode.
  • the terminal receives the SSB according to the coverage enhancement instruction message, which can reduce the access delay, reduce the power consumption of the terminal, and reduce the complexity of the terminal.
  • the coverage enhancement indication message includes cell identification set indication information, and also includes coverage level indication information corresponding to the cell identification set indicated by the cell identification set indication information.
  • the processor is specifically configured to:
  • the processor is specifically configured to:
  • the processor is specifically configured to:
  • the coverage level corresponding to the cell identity set to which the identity of the first cell belongs is taken as the coverage level of the first cell.
  • the repeated sending manner includes at least one of the following:
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the coverage enhancement indication message is configured for at least one of the following:
  • the coverage level and the cell identity set adopt joint coding or independent coding.
  • the processor is configured to execute at least one of the following:
  • N is an integer defined in advance or configured by the network side device, and n is an integer greater than or equal to 0 and less than N;
  • the transceiver receives the coverage enhancement indication message according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides an SSB receiving device, which is applied to a network side device, as shown in FIG. 6, including:
  • the sending module 51 is configured to send a coverage enhancement instruction message to the terminal, so that the terminal determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message.
  • the terminal receives the coverage enhancement instruction message from the network side device, and determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message. In this way, the terminal receives the SSB according to the coverage enhancement instruction message, which can reduce access Delay, reduce terminal power consumption and reduce terminal complexity.
  • the coverage enhancement indication message includes cell identification set indication information, and also includes coverage level indication information corresponding to the cell identification set indicated by the cell identification set indication information.
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the coverage enhancement indication message is configured for at least one of the following:
  • the coverage level and the cell identity set adopt joint coding or independent coding.
  • the set of cell identities meets at least one of the following:
  • the first part identities of the cell identities in the cell identities set are all the same, wherein the cell identities in the cell identities set consist of the first part identities and the second part identities, wherein the cell identities in the cell identities set Is the second part of the logo, Identified for the first part;
  • the second part identities of the cell identities in the cell identities set are all the same, wherein the cell identities in the cell identity set are composed of the first part identities and the second part identities;
  • N is an integer defined in advance or configured by the network side device, and n is an integer greater than or equal to 0 and less than N;
  • N is an integer defined in advance or configured by the network side device
  • m is an integer greater than or equal to 0 and less than or equal to M
  • M is The maximum value of is divided by N and then rounded.
  • the sending module is specifically configured to send the coverage enhancement indication message according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides an SSB receiving device, which is applied to a network side device, as shown in FIG. 7, including a processor 61 and a transceiver 62,
  • the transceiver 62 is configured to send a coverage enhancement instruction message to the terminal, so that the terminal determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message.
  • the terminal receives the coverage enhancement instruction message from the network side device, and determines the cell identity set and the coverage level corresponding to the cell identity set according to the coverage enhancement instruction message. In this way, the terminal receives the SSB according to the coverage enhancement instruction message, which can reduce access Delay, reduce terminal power consumption and reduce terminal complexity.
  • the coverage enhancement indication message includes cell identification set indication information, and also includes coverage level indication information corresponding to the cell identification set indicated by the cell identification set indication information.
  • the coverage level indication information includes at least one of the following:
  • the coverage enhancement indication message further includes at least one of the following:
  • the coverage enhancement indication message is configured for at least one of the following:
  • the coverage level and the cell identity set adopt joint coding or independent coding.
  • the set of cell identities meets at least one of the following:
  • the first part identities of the cell identities in the cell identities set are all the same, wherein the cell identities in the cell identities set consist of the first part identities and the second part identities, wherein the cell identities in the cell identities set Is the second part of the logo, Identified for the first part;
  • the second part identities of the cell identities in the cell identities set are all the same, wherein the cell identities in the cell identity set are composed of the first part identities and the second part identities;
  • N is an integer defined in advance or configured by the network side device, and n is an integer greater than or equal to 0 and less than N;
  • m is an integer greater than or equal to 0 and less than or equal to M
  • M is The maximum value of is divided by N and then rounded.
  • the transceiver is specifically configured to send the coverage enhancement indication message according to one of the following information:
  • a system broadcast message used to carry cell reselection information includes system broadcast message block 2, system broadcast message block 3, system broadcast message block 4, and system broadcast message block 5. At least one of
  • the embodiment of the present disclosure also provides a receiving device for SSB, including: a memory, a processor, and a computer program stored in the memory and running on the processor.
  • a receiving device for SSB including: a memory, a processor, and a computer program stored in the memory and running on the processor.
  • the embodiments of the present disclosure also provide a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps in the above-mentioned SSB receiving method are realized.
  • the embodiments described herein can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP Device, DSPD), programmable Logic devices (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this application Electronic unit or its combination.
  • ASICs application specific integrated circuits
  • DSP digital signal processors
  • DSP Device digital signal processing devices
  • DSPD digital signal processing devices
  • PLD programmable Logic Device
  • PLD Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • the technology described herein can be implemented by modules (such as procedures, functions, etc.) that perform the functions described herein.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the embodiments of the embodiments of the present disclosure may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present disclosure may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present disclosure may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing user terminal equipment to generate a machine, which can be executed by the processor of the computer or other programmable data processing user terminal equipment
  • the instructions generate means for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing user terminal equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device,
  • the instruction device realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing user terminal equipment, so that a series of operation steps are executed on the computer or other programmable user terminal equipment to produce computer-implemented processing, so that the computer or other programmable data processing user terminal equipment
  • the instructions executed on the user terminal device provide steps for implementing functions specified in one or more processes in the flowchart and/or one or more blocks in the block diagram.

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Abstract

本公开提供了一种SSB的接收方法及装置，属于无线通信技术领域。SSB的接收方法，应用于终端，包括：接收网络侧设备的覆盖增强指示消息；根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级；获取至少一个第一小区的标识以及所述第一小区的覆盖等级，其中所述第一小区的标识属于所述小区标识集合；根据所述覆盖等级确定所述第一小区对应的同步信号块SSB的重复发送方式，根据所述重复发送方式对所述SSB进行接收。本公开的技术方案能够降低接入时延，降低终端功耗。

Description

SSB的接收方法及装置
相关申请的交叉引用
本申请主张在2019年10月31日在中国提交的中国专利申请号No.201911056733.6的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及无线通信技术领域，特别是指一种SSB的接收方法及装置。
背景技术
新空口(New Radio，NR)设计中通过引入波束扫描的方式增强覆盖，终端根据自己所处的位置选择合适的波束进行接入。完成小区接入之后，可以进一步采用终端专属的波束进行业务信道的传输，充分利用大规模天线的优势，实现NR广覆盖的需求。
相关技术提出一种NR分层覆盖设计策略，即支持NR部分波束方向或者全部波束方向的覆盖增强。为了尽可能重用NR相关的同步信号(synchronization signal，SS)/物理广播信道(Physical Broadcast Channel，PBCH)设计，在分层覆盖的场景下，可以考虑在一个载波的不同频域位置(如Syncraster)上，配置不同的同步信号块(synchronization signal block，SSB)传输格式。
为了让终端在接入的过程中能够识别出当前的初始接入过程是否采用了覆盖增强，只有确认采用了覆盖增强方式时，才能按照增强的方式进行同步，广播信道的接收。
在这个过程中根据同步时延的大小分为两种方式：
方式1：先检测同步信道，再检测覆盖增强指示消息，识别是否能够进行覆盖增强的检测，之后再检测PBCH及后续信道。
方式2：先检测覆盖增强指示消息，再进行同步广播信道的检测。
方案1中，同步信道不能享受覆盖增强的好处，因此随着需要增强的dB 数的增加，终端需要合并多个SSB周期的同步信号获得累积的同步信号能量，因此获取同步的时延较大，同时由于同步窗口变长，需要缓存的数据也变多，好处是对于覆盖增强指示消息的检测相对简单，只在确定存在同步信号的raster才会检测覆盖增强指示消息。
方案2先检测覆盖增强指示消息，终端先搜索覆盖增强指示消息，为了避免方案1的缺点，覆盖增强指示消息应该尽可能集中，且检测可靠性要高。
覆盖增强指示消息至少用于指示覆盖等级，根据覆盖等级确定SSB重复次数，终端根据SSB重复次数对相应的SSB进行合并接收。
如果终端没有收到上述覆盖增强指示消息，那么终端按照正常的SSB接收方式进行接收，但是如果终端周围存在多个小区，其中至少一个小区发送了覆盖增强指示消息，那么将导致终端按照覆盖增强的方式对所有小区的SSB分别进行合并接收，这将导致没有进行覆盖增强的小区的SSB被错误合并或被进行不必要的合并，从而导致接入失败、或接入时延增加、或终端功耗增加。
如果存在多个覆盖增强小区，但覆盖等级不同，那么终端同样可能会按照低覆盖等级的合并接收方式接收高覆盖等级小区的SSB，从而导致接入失败；或者终端需要按照所有可能的覆盖等级分别对各个小区的SSB进行合并接收，从而导致接入时延增加、或终端功耗增加、或终端复杂度提高。
发明内容
本公开要解决的技术问题是提供一种SSB的接收方法及装置，能够降低接入时延，降低终端功耗。
为解决上述技术问题，本公开的实施例提供技术方案如下：
本公开的实施例提供了一种SSB的接收方法，应用于终端，包括：
接收网络侧设备的覆盖增强指示消息；
根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级；
获取至少一个第一小区的标识以及所述第一小区的覆盖等级，其中所述 第一小区的标识属于所述小区标识集合；
根据所述覆盖等级确定所述第一小区对应的同步信号块SSB的重复发送方式，根据所述重复发送方式对所述SSB进行接收。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，获取所述第一小区的标识包括：
基于检测到的主同步信号PSS和辅同步信号SSS确定第二小区标识；
判断所述第二小区标识是否属于所述小区标识集合，在所述第二小区标识属于所述小区标识集合时，将所述第二小区标识对应的小区作为所述第一小区。
可选地，获取所述第一小区的标识包括：
检测所述小区标识集合中包含的小区标识对应的PSS和SSS；
基于检测到的PSS和SSS确定第一小区的标识。
可选地，获取所述第一小区的覆盖等级包括：
将与所述第一小区的标识所属小区标识集合对应的覆盖等级作为所述第一小区的覆盖等级。
可选地，所述重复发送方式包括以下至少一种：
重复发送次数；重复发送的时域资源；重复发送的频域资源；最大重复发送次数；重复发送图样。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息针对以下至少一种进行配置：
BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息中，所述覆盖等级和所述小区标识集合采用联合编码或独立编码。
可选地，根据以下信息中的一种接收所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收方法，应用于网络侧设备，包括：
向终端发送覆盖增强指示消息，以使所述终端根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，根据以下信息中的一种发送所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收装置，应用于终端，包括：
接收模块，用于接收网络侧设备的覆盖增强指示消息；
确定模块，用于根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级；
获取模块，用于获取至少一个第一小区的标识以及所述第一小区的覆盖等级，其中所述第一小区的标识属于所述小区标识集合；
处理模块，用于根据所述覆盖等级确定所述第一小区对应的同步信号块SSB的重复发送方式，根据所述重复发送方式对所述SSB进行接收。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，所述获取模块具体用于：
基于检测到的主同步信号PSS和辅同步信号SSS确定第二小区标识；
判断所述第二小区标识是否属于所述小区标识集合，在所述第二小区标识属于所述小区标识集合时，将所述第二小区标识对应的小区作为所述第一小区。
可选地，所述获取模块具体用于：
检测所述小区标识集合中包含的小区标识对应的PSS和SSS；
基于检测到的PSS和SSS确定第一小区的标识。
可选地，所述确定模块具体用于：
将与所述第一小区的标识所属小区标识集合对应的覆盖等级作为所述第一小区的覆盖等级。
可选地，所述重复发送方式包括以下至少一种：
重复发送次数；重复发送的时域资源；重复发送的频域资源；最大重复发送次数；重复发送图样。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息针对以下至少一种进行配置：
BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息中，所述覆盖等级和所述小区标识集合采用联合编码或独立编码。
可选地，所述接收模块根据以下信息中的一种接收所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收装置，应用于终端，包括处理器和收发器，
所述收发器用于接收网络侧设备的覆盖增强指示消息；
所述处理器用于根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级；获取至少一个第一小区的标识以及所述第一小区的覆盖等级，其中所述第一小区的标识属于所述小区标识集合；根据所述覆盖等级确定所述第一小区对应的同步信号块SSB的重复发送方式，根据所述重复发送方式对所述SSB进行接收。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，所述处理器具体用于：
基于检测到的主同步信号PSS和辅同步信号SSS确定第二小区标识；
判断所述第二小区标识是否属于所述小区标识集合，在所述第二小区标识属于所述小区标识集合时，将所述第二小区标识对应的小区作为所述第一小区。
可选地，所述处理器具体用于：
检测所述小区标识集合中包含的小区标识对应的PSS和SSS；
基于检测到的PSS和SSS确定第一小区的标识。
可选地，所述处理器具体用于：
将与所述第一小区的标识所属小区标识集合对应的覆盖等级作为所述第一小区的覆盖等级。
可选地，所述重复发送方式包括以下至少一种：
重复发送次数；重复发送的时域资源；重复发送的频域资源；最大重复发送次数；重复发送图样。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息针对以下至少一种进行配置：
BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息中，所述覆盖等级和所述小区标识集合采用联合编码或独立编码。
可选地，所述收发器根据以下信息中的一种接收所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收装置，应用于网络侧设备，包括：
发送模块，用于向终端发送覆盖增强指示消息，以使所述终端根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述发送模块具体用于根据以下信息中的一种发送所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收装置，应用于网络侧设备，包括处理器和收发器，
所述收发器用于向终端发送覆盖增强指示消息，以使所述终端根据所述 覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述收发器具体用于根据以下信息中的一种发送所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收设备，包括：存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如上所述的SSB的接收方法中的步骤。
本公开实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如上所述的SSB的接收方法中的步骤。
本公开的实施例具有以下有益效果：
上述方案中，终端接收网络侧设备的覆盖增强指示消息，根据覆盖增强指示消息确定小区标识集合以及小区标识集合对应的覆盖等级，获取至少一个第一小区的标识以及第一小区的覆盖等级，其中第一小区的标识属于小区标识集合，按照覆盖等级确定第一小区对应的同步信号块SSB的重复发送方式，按照重复发送方式对SSB进行接收。这样终端根据覆盖增强指示消息对SSB进行接收，能够降低接入时延，降低终端功耗，降低终端复杂度。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为在一个载波的不同频域位置上配置不同的SSB传输格式的示意图；
图2为本公开实施例应用于终端的SSB的接收方法的流程示意图；
图3为本公开实施例应用于网络侧设备的SSB的接收方法的流程示意图；
图4为本公开实施例应用于终端的SSB的接收装置的结构框图；
图5为本公开实施例终端的组成示意图；
图6为本公开实施例应用于网络侧设备的SSB的接收装置的结构框图；
图7为本公开实施例网络侧设备的组成示意图。
具体实施方式
为使本公开的实施例要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。说明书以及权利要求中“和/或”表示所连接对象的至少其中之一。
本文所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，并且也可用于各种无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。术语“系统”和“网络”常被可互换地使用。CDMA系统可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access，UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access，WCDMA)和其他CDMA变体。TDMA系统可实现诸如全球移动通信系统(Global System for Mobile Communication，GSM)之类的无线电技术。OFDMA系统可实现诸如超移动宽带(UltraMobile Broadband，UMB)、演进型UTRA(Evolution-UTRA，E-UTRA)、IEEE 802.11(Wi-Fi)、IEEE 802.16(WiMAX)、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信系统(Universal Mobile Telecommunications System，UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project，3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴 项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。然而，以下描述出于示例目的描述了NR系统，并且在以下大部分描述中使用NR术语，尽管这些技术也可应用于NR系统应用以外的应用。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如，可以按不同于所描述的次序来执行所描述的方法，并且可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
在NR部署的过程中，尽管网络规划以无缝覆盖为目标进行部署设计，由于实际部署环境中各个方向传播环境的差异，比如某个方向由于有遮挡物的存在，导致传播损耗较大，不可避免会出现相应传播方向的覆盖短板问题。对于建筑物内的覆盖也存在类似问题，由于建筑物的穿透损耗导致在建筑物内部的终端接收信号电平较低，而对于建筑物外部由于传播环境相对空旷，可以覆盖的距离要远于建筑物的距离。在这种情况下，最直接的扩展覆盖方案为增加小区或者部署中继设备等。这种方式简单直接，但同时意味着更高的设备成本和维护费用。
NR的三大应用场景是增强型移动宽带(Enhanced Mobile Broadband，eMBB)、海量机器类通信(Massive Machine Type Communications，mMTC)、超可靠、低时延通信(Ultra Reliable Low Latency Communications，uRLLC)，相关技术对eMBB的广覆盖、大速率需求及URLLC的低时延、高可靠特性进行了充分考虑，但对于低成本、大连接的考虑相对欠缺，虽然也支持了可配置的终端工作带宽，能够使得小工作带宽的终端接入，但整体基于eMBB的需求进行优化设计，对于更大、更深覆盖的需求体现不够充分。同时，物联网的终端对于速率的需求范围也较大，部分物联网终端在要求大覆盖的同时对于传输速率也有一定的需求。因此，综合考虑不同速率要求，从系统设计的角度应该在支持大覆盖的同时，支持更加灵活的带宽资源使用，而非固定的窄带资源系统设计。同时，对于mMTC业务的设计应该尽可能的重用 NR的协议设计，来享受NR规模部署所带来的芯片成本红利。
综合上述两种场景需求，提出一种NR分层覆盖设计策略，即支持NR部分波束方向或者全部波束方向的覆盖增强。基本原则是重用NR的协议，支持后向兼容，在部分波束方向上引入覆盖增强设计，通过协议升级的方式而非设备部署的方式增强覆盖。同时，覆盖增强设计要兼顾考虑物联网低成本需求，支持可变的传输速率，通过将部分方向的覆盖增强进行扩展，支持全小区的覆盖增强，从而实现NR对物联网业务的支持。
在初始同步阶段，mMTC用户由于需要获得大覆盖的增益，就需要对同步和广播信号进行合并接收。目前NR同步信号的设计，最大只能支持80ms内的广播信号的合并，按照终端初始接入时以20ms周期搜索同步和广播信号的假设，最多只能拿到6dB的合并增益，难以满足所有广覆盖用户的覆盖增强需求。
为了尽可能重用NR相关的同步信号(synchronization signal，SS)/物理广播信道(Physical Broadcast Channel，PBCH)设计，在分层覆盖的场景下，可以考虑在一个载波的不同频域位置(如Syncraster)上，配置不同的同步信号块(synchronization signal block，SSB)传输格式，如图1所示，在频域位置1上配置的是正常的用于全覆盖的SSB，这时不同SSB index对应的波束可能是不同的；在频域位置2上配置的是用于覆盖增强的SSB，这时不同的SSB index对应的波束可能是在某个方向上的重复发送的波束，位于该波束覆盖范围下的终端可以搜索频域位置2上的SSB，并进行合并接收，享受到覆盖增强的增益。
为了保证终端明确的知道重复传输的SSB的格式，进行正确的合并，并尽可能地复用相关的SSB设计，可以引入一套新的重复指示信号，该信号具有时间初同步以及重复格式指示的功能。
针对SSB重复的格式，SSB的合并接收可以分为下面几类：
(1)将每隔80ms发送的SSB合并接收。
(2)将80ms内，每隔20ms发送的SSB合并接收；
NR支持80ms内不同20ms间相同index下的SSB是可以合并的，可以 增加一些指示，使得不需要终端盲检就可以直接进行合并。
(3)将20ms内，每隔N ms发送的SSB合并接收；
可以通过新的指示信号告知终端SSB的发送周期N ms，如5ms、10ms及20ms，分别对应20ms的4次、2次及1次合并。
(4)将5ms内不同的SSB index对应的SSB合并接收。
为了让终端在接入的过程中能够识别出当前的初始接入过程是否采用了覆盖增强，只有确认采用了覆盖增强方式时，才能按照增强的方式进行同步，广播信道的接收。
在这个过程中根据同步时延的大小分为两种方式：
方式1：先检测同步信道，再检测覆盖增强指示消息，识别是否能够进行覆盖增强的检测，之后再检测PBCH及后续信道。
方式2：先检测覆盖增强指示消息，再进行同步广播信道的检测。
方案1中，同步信道不能享受覆盖增强的好处，因此随着需要增强的dB数的增加，终端需要合并多个SSB周期的同步信号获得累积的同步信号能量，因此获取同步的时延较大，同时由于同步窗口变长，需要缓存的数据也变多，好处是对于覆盖增强指示消息的检测相对简单，只在确定存在同步信号的raster才会检测覆盖增强指示消息。
方案2先检测覆盖增强指示消息，终端先搜索覆盖增强指示消息，为了避免方案1的缺点，覆盖增强指示消息应该尽可能集中，且检测可靠性要高。
覆盖增强指示消息至少用于指示覆盖等级，根据覆盖等级确定SSB重复次数，终端根据SSB重复次数对相应的SSB进行合并接收。
如果终端没有收到上述覆盖增强指示消息，那么终端按照正常的SSB接收方式进行接收，但是如果终端周围存在多个小区，其中至少一个小区发送了覆盖增强指示消息，那么将导致终端按照覆盖增强的方式对所有小区的SSB分别进行合并接收，这将导致没有进行覆盖增强的小区的SSB被错误合并或被进行不必要的合并，从而导致接入失败、或接入时延增加、或终端功耗增加。
如果存在多个覆盖增强小区，但覆盖等级不同，那么终端同样可能会按 照低覆盖等级的合并接收方式接收高覆盖等级小区的SSB，从而导致接入失败；或者终端需要按照所有可能的覆盖等级分别对各个小区的SSB进行合并接收，从而导致接入时延增加、或终端功耗增加、或终端复杂度提高。
为了解决上述问题，本公开实施例提供一种SSB的接收方法及装置，能够降低接入时延，降低终端功耗。
本公开的实施例提供了一种SSB的接收方法，应用于终端，如图2所示，包括：
步骤101：接收网络侧设备的覆盖增强指示消息；
步骤102：根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级；
步骤103：获取至少一个第一小区的标识以及所述第一小区的覆盖等级，其中所述第一小区的标识属于所述小区标识集合；
步骤104：根据所述覆盖等级确定所述第一小区对应的同步信号块SSB的重复发送方式，根据所述重复发送方式对所述SSB进行接收。
本实施例中，终端接收网络侧设备的覆盖增强指示消息，根据覆盖增强指示消息确定小区标识集合以及小区标识集合对应的覆盖等级，获取至少一个第一小区的标识以及第一小区的覆盖等级，其中第一小区的标识属于小区标识集合，按照覆盖等级确定第一小区对应的同步信号块SSB的重复发送方式，按照重复发送方式对SSB进行接收。这样终端根据覆盖增强指示消息对SSB进行接收，能够降低接入时延，降低终端功耗，降低终端复杂度。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，获取所述第一小区的标识包括：
基于检测到的主同步信号(Primary Synchronization Signal，PSS)和辅同步信号(Secondary Synchronization Signal，SSS)确定第二小区标识；
判断所述第二小区标识是否属于所述小区标识集合，在所述第二小区标识属于所述小区标识集合时，将所述第二小区标识对应的小区作为所述第一小区。
可选地，获取所述第一小区的标识包括：
检测所述小区标识集合中包含的小区标识对应的PSS和SSS；
基于检测到的PSS和SSS确定第一小区的标识。
可选地，获取所述第一小区的覆盖等级包括：
将与所述第一小区的标识所属小区标识集合对应的覆盖等级作为所述第一小区的覆盖等级。
可选地，所述重复发送方式包括以下至少一种：
重复发送次数；重复发送的时域资源；重复发送的频域资源；最大重复发送次数；重复发送图样。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
其中覆盖等级指示信息可以包括重复发送次数、重复发送的时域/频域资源、最大重复发送次数、重复发送图样的指示信息。为了支持不同小区配置不同的覆盖增强等级，及同小区不同的BWP配置不同的覆盖等级，而非一个确定的覆盖等级(按照最大覆盖等级进行的设计意味着更多的网络资源)。需要在覆盖等级指示信息中承载覆盖增强等级，对于BWP中承载不同重复次数的SSB的情况，承载的信息可以对应不同次数的重复。比如重复2次，4次，8次，16次……。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号(Absolute Radio Frequency Channel Number，ARFCN)；
载波频率。
可选地，所述覆盖增强指示消息针对以下至少一种进行配置：
BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息中，所述覆盖等级和所述小区标识集合采用联合编码或独立编码。
其中，cell ID集合指示信息可以为一下任意一种：
Figure PCTCN2020123957-appb-000001
其中
Figure PCTCN2020123957-appb-000002
Figure PCTCN2020123957-appb-000003
n，cell ID集合包含满足
Figure PCTCN2020123957-appb-000004
的
Figure PCTCN2020123957-appb-000005
其中0≤n<N，n与N为整数
m，cell ID集合包含满足
Figure PCTCN2020123957-appb-000006
的
Figure PCTCN2020123957-appb-000007
N为预先定义或网络侧设备配置的整数，m为大于等于0小于等于M的整数，M为
Figure PCTCN2020123957-appb-000008
的最大值除以N后取整。
以承载4种重复次数，3组不同的小区ID范围为例，覆盖增强指示消息需要能承载12种信息，可以通过12个正交序列来区分这些信息。
比如：0,1,2,3对应小区PSS的
Figure PCTCN2020123957-appb-000009
为0，分别对应2,4,8,16种重复次数；
4,5,6,7对应小区PSS的
Figure PCTCN2020123957-appb-000010
为1，分别对应2,4,8,16种重复次数；
8,9,10,11对应小区PSS的
Figure PCTCN2020123957-appb-000011
为2，分别对应2,4,8,16种重复次数。
可选地，所述根据所述覆盖增强指示消息确定小区标识集合包括以下至少一种：
根据所述覆盖增强指示消息确定第一部分标识
Figure PCTCN2020123957-appb-000012
或第二部分标识
Figure PCTCN2020123957-appb-000013
所述小区标识集合中的小区标识的第一部分标识
Figure PCTCN2020123957-appb-000014
均相同或第二部分标识
Figure PCTCN2020123957-appb-000015
均相同，所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000016
根据所述覆盖增强指示消息确定n，n等于
Figure PCTCN2020123957-appb-000017
其中，N为预 先定义或网络侧设备配置的整数，n为大于等于0小于N的整数；
根据所述覆盖增强指示消息确定m，m等于
Figure PCTCN2020123957-appb-000018
其中，N为预先定义或网络侧设备配置的整数，m为大于等于0小于等于M的整数，M为
Figure PCTCN2020123957-appb-000019
的最大值除以N后取整。可选地，根据以下信息中的一种接收所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收方法，应用于网络侧设备，如图3所示，包括：
步骤201：向终端发送覆盖增强指示消息，以使所述终端根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级。
本实施例中，终端接收网络侧设备的覆盖增强指示消息，根据覆盖增强指示消息确定小区标识集合以及小区标识集合对应的覆盖等级，这样终端根据覆盖增强指示消息对SSB进行接收，能够降低接入时延，降低终端功耗，降低终端复杂度。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息针对以下至少一种进行配置：
BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息中，所述覆盖等级和所述小区标识集合采用联合编码或独立编码。
可选地，所述小区标识集合满足以下至少一种：
所述小区标识集合中的小区标识的第一部分标识均相同，其中所述小区标识集合中的小区标识由第一部分标识和第二部分标识组成；
所述小区标识集合中的小区标识的第二部分标识均相同，其中所述小区标识集合中的小区标识由第一部分标识和第二部分标识组成；
所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000020
满足
Figure PCTCN2020123957-appb-000021
其中，N为协议定义或网络侧设备配置的整数，n为大于等于0小于N的整数；
所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000022
满足
Figure PCTCN2020123957-appb-000023
的
Figure PCTCN2020123957-appb-000024
其中，N为协议定义或网络侧设备配置的整数，m为大于等于0小于等于M的整数，M为
Figure PCTCN2020123957-appb-000025
的最大值除以N后取整。
可选地，根据以下信息中的一种发送所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收装置，应用于终端，如图4所示，包括：
接收模块31，用于接收网络侧设备的覆盖增强指示消息；
确定模块32，用于根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级；
获取模块33，用于获取至少一个第一小区的标识以及所述第一小区的覆盖等级，其中所述第一小区的标识属于所述小区标识集合；
处理模块34，用于根据所述覆盖等级确定所述第一小区对应的同步信号块SSB的重复发送方式，根据所述重复发送方式对所述SSB进行接收。
本实施例中，终端接收网络侧设备的覆盖增强指示消息，根据覆盖增强指示消息确定小区标识集合以及小区标识集合对应的覆盖等级，获取至少一个第一小区的标识以及第一小区的覆盖等级，其中第一小区的标识属于小区标识集合，按照覆盖等级确定第一小区对应的同步信号块SSB的重复发送方式，按照重复发送方式对SSB进行接收。这样终端根据覆盖增强指示消息对SSB进行接收，能够降低接入时延，降低终端功耗，降低终端复杂度。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，所述获取模块具体用于：
基于检测到的主同步信号PSS和辅同步信号SSS确定第二小区标识；
判断所述第二小区标识是否属于所述小区标识集合，在所述第二小区标识属于所述小区标识集合时，将所述第二小区标识对应的小区作为所述第一小区。
可选地，所述获取模块具体用于：
检测所述小区标识集合中包含的小区标识对应的PSS和SSS；
基于检测到的PSS和SSS确定第一小区的标识。
可选地，所述确定模块具体用于：
将与所述第一小区的标识所属小区标识集合对应的覆盖等级作为所述第一小区的覆盖等级。
可选地，所述重复发送方式包括以下至少一种：
重复发送次数；重复发送的时域资源；重复发送的频域资源；最大重复发送次数；重复发送图样。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息针对以下至少一种进行配置：
BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息中，所述覆盖等级和所述小区标识集合采用联合编码或独立编码。
可选地，所述确定模块用于执行以下至少一种：
根据所述覆盖增强指示消息确定第一部分标识
Figure PCTCN2020123957-appb-000026
或第二部分标识
Figure PCTCN2020123957-appb-000027
所述小区标识集合中的小区标识的第一部分标识
Figure PCTCN2020123957-appb-000028
均相同或第二部分标识
Figure PCTCN2020123957-appb-000029
均相同，所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000030
根据所述覆盖增强指示消息确定n，n等于
Figure PCTCN2020123957-appb-000031
其中，N为预先定义或网络侧设备配置的整数，n为大于等于0小于N的整数；
根据所述覆盖增强指示消息确定m，m等于
Figure PCTCN2020123957-appb-000032
其中，N为预先定义或网络侧设备配置的整数，m为大于等于0小于等于M的整数，M为
Figure PCTCN2020123957-appb-000033
的最大值除以N后取整。可选地，所述接收模块根据以下信息中的一种接收所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收装置，应用于终端，如图5所示，包括处理器41和收发器42，
所述收发器42用于接收网络侧设备的覆盖增强指示消息；
所述处理器41用于根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级；获取至少一个第一小区的标识以及所述第一小区的覆盖等级，其中所述第一小区的标识属于所述小区标识集合；根据所述覆盖等级确定所述第一小区对应的同步信号块SSB的重复发送方式，根据所述重复发送方式对所述SSB进行接收。
本实施例中，终端接收网络侧设备的覆盖增强指示消息，根据覆盖增强指示消息确定小区标识集合以及小区标识集合对应的覆盖等级，获取至少一个第一小区的标识以及第一小区的覆盖等级，其中第一小区的标识属于小区标识集合，按照覆盖等级确定第一小区对应的同步信号块SSB的重复发送方式，按照重复发送方式对SSB进行接收。这样终端根据覆盖增强指示消息对 SSB进行接收，能够降低接入时延，降低终端功耗，降低终端复杂度。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，所述处理器具体用于：
基于检测到的主同步信号PSS和辅同步信号SSS确定第二小区标识；
判断所述第二小区标识是否属于所述小区标识集合，在所述第二小区标识属于所述小区标识集合时，将所述第二小区标识对应的小区作为所述第一小区。
可选地，所述处理器具体用于：
检测所述小区标识集合中包含的小区标识对应的PSS和SSS；
基于检测到的PSS和SSS确定第一小区的标识。
可选地，所述处理器具体用于：
将与所述第一小区的标识所属小区标识集合对应的覆盖等级作为所述第一小区的覆盖等级。
可选地，所述重复发送方式包括以下至少一种：
重复发送次数；重复发送的时域资源；重复发送的频域资源；最大重复发送次数；重复发送图样。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息针对以下至少一种进行配置：
BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息中，所述覆盖等级和所述小区标识集合采用联合编码或独立编码。
可选地，所述处理器用于执行以下至少一种：
根据所述覆盖增强指示消息确定第一部分标识
Figure PCTCN2020123957-appb-000034
或第二部分标识
Figure PCTCN2020123957-appb-000035
所述小区标识集合中的小区标识的第一部分标识
Figure PCTCN2020123957-appb-000036
均相同或第二部分标识
Figure PCTCN2020123957-appb-000037
均相同，所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000038
根据所述覆盖增强指示消息确定n，n等于
Figure PCTCN2020123957-appb-000039
其中，N为预先定义或网络侧设备配置的整数，n为大于等于0小于N的整数；
根据所述覆盖增强指示消息确定m，m等于
Figure PCTCN2020123957-appb-000040
其中，N为预先定义或网络侧设备配置的整数，m为大于等于0小于等于M的整数，M为
Figure PCTCN2020123957-appb-000041
的最大值除以N后取整。可选地，所述收发器根据以下信息中的一种接收所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收装置，应用于网络侧设备，如图6所示，包括：
发送模块51，用于向终端发送覆盖增强指示消息，以使所述终端根据所 述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级。
本实施例中，终端接收网络侧设备的覆盖增强指示消息，根据覆盖增强指示消息确定小区标识集合以及小区标识集合对应的覆盖等级，这样终端根据覆盖增强指示消息对SSB进行接收，能够降低接入时延，降低终端功耗，降低终端复杂度。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息针对以下至少一种进行配置：
BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息中，所述覆盖等级和所述小区标识集合采用联合编码或独立编码。
可选地，所述小区标识集合满足以下至少一种：
所述小区标识集合中的小区标识的第一部分标识均相同，其中所述小区标识集合中的小区标识由第一部分标识和第二部分标识组成，其中所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000042
为第二部分标识，
Figure PCTCN2020123957-appb-000043
为第一部分标识；
所述小区标识集合中的小区标识的第二部分标识均相同，其中所述小区标识集合中的小区标识由第一部分标识和第二部分标识组成；
所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000044
满足
Figure PCTCN2020123957-appb-000045
其中，N为预先定义或网络侧设备配置的整数，n为大于等于0小于N的整数；
所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000046
满足
Figure PCTCN2020123957-appb-000047
的
Figure PCTCN2020123957-appb-000048
其中，N为预先定义或网络侧设备配置的整数，m为大于等于0小于等于M的整数，M为
Figure PCTCN2020123957-appb-000049
的最大值除以N后取整。
可选地，所述发送模块具体用于根据以下信息中的一种发送所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收装置，应用于网络侧设备，如图7所示，包括处理器61和收发器62，
所述收发器62用于向终端发送覆盖增强指示消息，以使所述终端根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级。
本实施例中，终端接收网络侧设备的覆盖增强指示消息，根据覆盖增强指示消息确定小区标识集合以及小区标识集合对应的覆盖等级，这样终端根 据覆盖增强指示消息对SSB进行接收，能够降低接入时延，降低终端功耗，降低终端复杂度。
可选地，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
可选地，所述覆盖等级指示信息包括以下至少一种：
重复发送次数的指示信息；
重复发送的时域资源的指示信息；
重复发送的频域资源的指示信息；
最大重复发送次数的指示信息；
重复发送图样的指示信息。
可选地，所述覆盖增强指示消息还包括以下至少一种：
带宽部分BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息针对以下至少一种进行配置：
BWP标识；
频点信息；
同步栅格信息；
绝对无线频道编号ARFCN；
载波频率。
可选地，所述覆盖增强指示消息中，所述覆盖等级和所述小区标识集合采用联合编码或独立编码。
可选地，所述小区标识集合满足以下至少一种：
所述小区标识集合中的小区标识的第一部分标识均相同，其中所述小区标识集合中的小区标识由第一部分标识和第二部分标识组成，其中所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000050
为第二部分标识，
Figure PCTCN2020123957-appb-000051
为第一部分 标识；
所述小区标识集合中的小区标识的第二部分标识均相同，其中所述小区标识集合中的小区标识由第一部分标识和第二部分标识组成；
所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000052
满足
Figure PCTCN2020123957-appb-000053
其中，N为预先定义或网络侧设备配置的整数，n为大于等于0小于N的整数；
所述小区标识集合中的小区标识
Figure PCTCN2020123957-appb-000054
满足
Figure PCTCN2020123957-appb-000055
的
Figure PCTCN2020123957-appb-000056
其中，N
为预先定义或网络侧设备配置的整数，m为大于等于0小于等于M的整数，M为
Figure PCTCN2020123957-appb-000057
的最大值除以N后取整。
可选地，所述收发器具体用于根据以下信息中的一种发送所述覆盖增强指示消息：
物理层序列；
用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
用于承载SSB配置信息的RRC消息。
本公开实施例还提供了一种SSB的接收设备，包括：存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如上所述的SSB的接收方法中的步骤。
本公开实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如上所述的SSB的接收方法中的步骤。
可以理解的是，本文描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、 可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本文所述功能的模块(例如过程、函数等)来实现本文所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。
本领域内的技术人员应明白，本公开实施例的实施例可提供为方法、装置、或计算机程序产品。因此，本公开实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开实施例是参照根据本公开实施例的方法、用户终端设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理用户终端设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理用户终端设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理用户终端设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理用户终端 设备上，使得在计算机或其他可编程用户终端设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程用户终端设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本公开实施例的可选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括可选实施例以及落入本公开实施例范围的所有变更和修改。
还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者用户终端设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者用户终端设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者用户终端设备中还存在另外的相同要素。
以上所述的是本公开的可选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以作出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (22)

  1. 一种SSB的接收方法，应用于终端，包括：
    接收网络侧设备的覆盖增强指示消息；
    根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级；
    获取至少一个第一小区的标识以及所述第一小区的覆盖等级，其中所述第一小区的标识属于所述小区标识集合；
    根据所述覆盖等级确定所述第一小区对应的同步信号块SSB的重复发送方式，根据所述重复发送方式对所述SSB进行接收。
  2. 根据权利要求1所述的SSB的接收方法，其中，所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
  3. 根据权利要求1所述的SSB的接收方法，其中，获取所述第一小区的标识包括：
    基于检测到的主同步信号PSS和辅同步信号SSS确定第二小区标识；
    判断所述第二小区标识是否属于所述小区标识集合，在所述第二小区标识属于所述小区标识集合时，将所述第二小区标识对应的小区作为所述第一小区。
  4. 根据权利要求1所述的SSB的接收方法，其中，获取所述第一小区的标识包括：
    检测所述小区标识集合中包含的小区标识对应的PSS和SSS；
    基于检测到的PSS和SSS确定第一小区的标识。
  5. 根据权利要求1至3中任一项所述的SSB的接收方法，其中，获取所述第一小区的覆盖等级包括：
    将与所述第一小区的标识所属小区标识集合对应的覆盖等级作为所述第一小区的覆盖等级。
  6. 根据权利要求1所述的SSB的接收方法，其中，所述重复发送方式包 括以下至少一种：
    重复发送次数；重复发送的时域资源；重复发送的频域资源；最大重复发送次数；重复发送图样。
  7. 根据权利要求2所述的SSB的接收方法，其中，所述覆盖等级指示信息包括以下至少一种：
    重复发送次数的指示信息；
    重复发送的时域资源的指示信息；
    重复发送的频域资源的指示信息；
    最大重复发送次数的指示信息；
    重复发送图样的指示信息。
  8. 根据权利要求1或2所述的SSB的接收方法，其中，所述覆盖增强指示消息还包括以下至少一种：
    带宽部分BWP标识；
    频点信息；
    同步栅格信息；
    绝对无线频道编号ARFCN；
    载波频率。
  9. 根据权利要求1或2所述的SSB的接收方法，其中，所述覆盖增强指示消息针对以下至少一种进行配置：
    BWP标识；
    频点信息；
    同步栅格信息；
    绝对无线频道编号ARFCN；
    载波频率。
  10. 根据权利要求1或2所述的SSB的接收方法，其中，所述覆盖增强指示消息中，所述覆盖等级和所述小区标识集合采用联合编码或独立编码。
  11. 根据权利要求1所述的SSB的接收方法，其中，根据以下信息中的一种接收所述覆盖增强指示消息：
    物理层序列；
    用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
    用于承载SSB配置信息的RRC消息。
  12. 一种SSB的接收方法，应用于网络侧设备，包括：
    向终端发送覆盖增强指示消息，以使所述终端根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级。
  13. 根据权利要求12所述的SSB的接收方法，其中，
    所述覆盖增强指示消息包括小区标识集合指示信息，还包括所述小区标识集合指示信息指示的小区标识集合对应的覆盖等级指示信息。
  14. 根据权利要求13所述的SSB的接收方法，其中，所述覆盖等级指示信息包括以下至少一种：
    重复发送次数的指示信息；
    重复发送的时域资源的指示信息；
    重复发送的频域资源的指示信息；
    最大重复发送次数的指示信息；
    重复发送图样的指示信息。
  15. 根据权利要求12或13所述的SSB的接收方法，其中，所述覆盖增强指示消息还包括以下至少一种：
    带宽部分BWP标识；
    频点信息；
    同步栅格信息；
    绝对无线频道编号ARFCN；
    载波频率。
  16. 根据权利要求12所述的SSB的接收方法，其中，根据以下信息中的一种发送所述覆盖增强指示消息：
    物理层序列；
    用于承载小区重选信息的系统广播消息，所述用于承载小区重选信息的系统广播消息包括系统广播消息块2，系统广播消息块3，系统广播消息块4，系统广播消息块5中的至少一种；
    用于承载SSB配置信息的RRC消息。
  17. 一种SSB的接收装置，应用于终端，包括：
    接收模块，用于接收网络侧设备的覆盖增强指示消息；
    确定模块，用于根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级；
    获取模块，用于获取至少一个第一小区的标识以及所述第一小区的覆盖等级，其中所述第一小区的标识属于所述小区标识集合；
    处理模块，用于根据所述覆盖等级确定所述第一小区对应的同步信号块SSB的重复发送方式，根据所述重复发送方式对所述SSB进行接收。
  18. 一种SSB的接收装置，应用于终端，包括处理器和收发器，
    所述收发器用于接收网络侧设备的覆盖增强指示消息；
    所述处理器用于根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级；获取至少一个第一小区的标识以及所述第一小区的覆盖等级，其中所述第一小区的标识属于所述小区标识集合；根据所述覆盖等级确定所述第一小区对应的同步信号块SSB的重复发送方式，根据所述重复发送方式对所述SSB进行接收。
  19. 一种SSB的接收装置，应用于网络侧设备，包括：
    发送模块，用于向终端发送覆盖增强指示消息，以使所述终端根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级。
  20. 一种SSB的接收装置，应用于网络侧设备，包括处理器和收发器，
    所述收发器用于向终端发送覆盖增强指示消息，以使所述终端根据所述覆盖增强指示消息确定小区标识集合以及所述小区标识集合对应的覆盖等级。
  21. 一种SSB的接收设备，包括：存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至16中任一项所述的SSB的接收方法中的步骤。
  22. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至16中任一项所述的SSB的接收方法中的步骤。
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