WO2022262864A1 - Procédé d'acquisition de signal et terminal - Google Patents

Procédé d'acquisition de signal et terminal Download PDF

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Publication number
WO2022262864A1
WO2022262864A1 PCT/CN2022/099573 CN2022099573W WO2022262864A1 WO 2022262864 A1 WO2022262864 A1 WO 2022262864A1 CN 2022099573 W CN2022099573 W CN 2022099573W WO 2022262864 A1 WO2022262864 A1 WO 2022262864A1
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ssb
reference signal
time domain
configuration information
pbch
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PCT/CN2022/099573
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English (en)
Chinese (zh)
Inventor
洪琪
李�根
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维沃移动通信有限公司
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Publication of WO2022262864A1 publication Critical patent/WO2022262864A1/fr

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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
    • H04W56/00—Synchronisation arrangements

Definitions

  • the present application belongs to the technical field of communications, and in particular relates to a signal acquisition method and a terminal.
  • the terminal needs to use the initial search when starting up or performing cell switching, and its purpose is to obtain the downlink synchronization of the cell: (1) time synchronization detection; (2) frequency synchronization detection.
  • One of the most important functions of the initial search is to find the network that can be used.
  • the initial search process is completed by the Synchronization Signal and PBCH block (SSB).
  • the terminal can decode the SSB to obtain the corresponding information content, so as to carry out Subsequent related processing, such as control and data channel transmission. Since the content of the information contained in the initially searched SSB is different, the accuracy of related processing for different information is different. If the accuracy is low, the performance of the entire system may be degraded. In the prior art, there is no related solution to the problem that the performance of the system may be degraded when using the initially searched SSB for correlation processing.
  • the embodiments of the present application provide a signal acquisition method and a terminal, which can solve the problem that the system performance may be degraded when the initially searched SSB is used for correlation processing.
  • a signal acquisition method including:
  • the terminal acquires configuration information of the first SSB and/or the first reference signal according to the second synchronization signal block SSB initially accessed;
  • a signal acquisition device including:
  • the first obtaining module is configured to obtain configuration information of the first SSB and/or the first reference signal according to the initially accessed second synchronization signal block SSB;
  • a signal processing module configured to detect the first SSB and/or the first reference signal according to the configuration information
  • a terminal in a third aspect, includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor. When the program or instruction is executed by the processor The steps of the method described in the first aspect are realized.
  • a terminal including a processor and a communication interface, wherein the processor is configured to acquire configuration information of the first SSB and/or the first reference signal according to the initially accessed second synchronization signal block SSB ;
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.
  • a sixth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and implement the method as described in the first aspect .
  • a computer program/program product is provided, the computer program/program product is stored in a non-volatile storage medium, and the program/program product is executed by at least one processor to implement the first aspect The steps of the method.
  • the terminal detects or demodulates the first SSB and/or the first reference signal according to the second SSB initially accessed, so that the first SSB and/or the first reference signal can be used to communicate with the second SSB Jointly perform subsequent correlation processing, such as time synchronization, the first SSB and/or the first reference signal may have a higher sub-carrier space (sub-carrier space, SCS), which can improve the accuracy of time compensation, thereby avoiding System performance is degraded.
  • sub-carrier space sub-carrier space
  • FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable;
  • FIG. 2 is a schematic structural diagram of a synchronization signal block SSB according to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a signal acquisition method provided in an embodiment of the present application.
  • FIG. 4 is a schematic flow diagram of a signal acquisition device provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • 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-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • NR New Radio
  • the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
  • 6G 6th Generation
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), Pedestrian Terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, earphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, transmission Receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only The base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • time synchronization detection which can detect the synchronization signal position, cyclic prefix (Cyclic prefix, CP) type, cell ID number, etc.
  • frequency synchronization detection which can use the main synchronization signal ( Primary Synchronization Signal, PSS), Secondary Synchronization Signal SSS (Secondary Synchronization Signal, SSS) and other signals perform frequency offset estimation, and then correct the frequency offset.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • the UE performs a blind search of the entire network frequency band according to the working frequency band it supports and the global synchronization channel number (Global synchronization channel number, GSCN) stipulated in the protocol. According to the agreement, in the FR2 frequency band (24.25G-100GHz), the UE will perform blind detection with a step size (sync raster) of 17.28MHz to find a frequency band suitable for its own access for access.
  • SSB consists of PSS, SSS, Physical Broadcast Channel (Physical Broadcast Channel, PBCH), demodulation reference signal (Demodulation Reference Signal, DMRS) in four consecutive Orthogonal frequency division multiplex (Orthogonal frequency division multiplex, OFDM) symbols , mainly used for downlink synchronization. Its structure is shown in Figure 2.
  • the SSB can generally be divided into a cell-defined synchronization signal block (cell-defined SSB) and a non-cell-defined synchronization signal block (non-cell-defined SSB).
  • cell-defined SSB will carry system information block (System Information Block Type1, SIB1) information, and can confirm a cell’s cell ID (cell ID) and other information.
  • SIB1 System Information Block Type1, SIB1
  • the non-cell-defined SSB will not carry SIB1 information, and it cannot confirm the cell ID of a cell.
  • One of the main functions of non-cell-defined SSB is for measurement to obtain related values such as Signal Noise Ratio (SNR).
  • SNR Signal Noise Ratio
  • the UE Because the internal structure of the SSB is standardized by the protocol, when the UE detects the synchronization signal at a specific synchronization frequency point (the SCS of the SSB has been obtained at this time), it can try to decode the SSB. Among them, the most important information contained in the SSB is the Master Information Block (MIB).
  • MIB Master Information Block
  • the information contained in the SSB can be as follows:
  • systemFrameNumber IE system frame number.
  • the complete frame number needs 10 bits, and the frame number in the MIB Payload has only high 6 bits, and the low 4 bits are transmitted in the non-MIB bits in the PBCH transmission block;
  • subCarrierSpacingCommon IE The subcarrier spacing of the downlink signal in the initial access process, indicating the subcarrier spacing of SIB1/other system information (Other System Information, OSI)/Msg2/Msg4/paging message of initial access.
  • SIB1/other system information OFether System Information, OSI
  • Msg2/Msg4/paging message of initial access The SCS indicated by this indication field is different from the SCS of the SSB;
  • ssb-SubcarrierOffset IE the number of subcarrier intervals between the lowest subcarrier of SSB and its nearest physical resource block (Physical Resource Block, PRB);
  • dmrs-Type A-Position IE Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) DMRS reference signal configuration;
  • SIB1_PDCCH Physical Downlink Control Channel, physical downlink control channel
  • control resource set Control resource set, CORESET
  • search space configuration search space configuration
  • cellBarred IE Access control parameters of Radio Resource Control (RRC), identifying whether the cell is prohibited;
  • RRC Radio Resource Control
  • intraFreqReselection IE RRC access control parameters, indicating whether the same frequency reselection is allowed in the cell;
  • the embodiment of the present application provides a signal acquisition method, including:
  • Step 301 the terminal acquires configuration information of the first SSB and/or the first reference signal according to the initially accessed second synchronization signal block SSB.
  • Step 302 Detect the first SSB and/or the first reference signal according to the configuration information
  • the second SSB is the SSB initially accessed by the terminal, and the terminal acquires configuration information of the first SSB and/or the first reference signal by receiving the second SSB.
  • the terminal detects (or demodulates) the first SSB and/or the first reference signal according to the acquired configuration information.
  • the method further includes: performing time synchronization according to the second SSB, the first SSB and/or the first reference signal.
  • performing time synchronization according to the second SSB, and the first SSB and/or the first reference signal may include: performing coarse time synchronization according to the second SSB; An SSB and/or the first reference signal for precise time synchronization.
  • the terminal may use the first SSB and/or the first reference signal to perform subsequent correlation processing, for example: Time synchronization is performed by using the first SSB and/or the first reference signal in conjunction with the second SSB, so as to be used for subsequent control and data channel (PDCCH/PDSCH) transmission.
  • the UE may first use the second SSB to perform coarse time synchronization, and then use the first SSB and/or the first reference signal to perform precise time synchronization, thereby improving the accuracy of time compensation.
  • the configuration information of the first SSB is acquired according to the second SSB. Further, the acquiring configuration information of the first SSB according to the second SSB of initial access includes:
  • the configuration information of the first SSB may be indicated by an indication field of the second SSB, or may be acquired and determined by a corresponding relationship between the second SSB and the first configuration information of the first SSB.
  • the corresponding relationship between the second SSB and the first configuration information of the first SSB may be a fixed binding relationship, for example: the network side device pre-configures or pre-defines the first SSB corresponding to the second SSB
  • the configuration information is a fixed value. After receiving the second SSB, the terminal can obtain the specific value of the configuration information of the first SSB according to the corresponding relationship, such as the position of the first SSB and the SCS of the first SSB.
  • the first target value is used to determine the first configuration information; where the first target value is used to indicate the first configuration information, and the first target value is predefined or preconfigured by a protocol.
  • the network side device may pre-configure or pre-define a fixed value of the first configuration information corresponding to the second SSB, for example: the first configuration information includes the location information of the first SSB, then The position of the first SSB corresponding to the second SSB may be predefined or preconfigured as the target position, and the terminal may know the specific position of the first SSB according to the corresponding relationship after receiving the second SSB.
  • the first configuration information may include at least one of the following:
  • the first configuration information of the first SSB may include: one or more items of a frequency domain position, a time domain position, and an SCS of the first SSB.
  • the frequency domain position of the first SSB may include:
  • the GSCN number can be one or more, and the GSCN number can be directly indicated by the indication field of the second SSB; it can also be configured for the first SSB
  • the GSCN number corresponding to the second SSB that is, after the terminal receives the second SSB, it can know the GSCN number of the first SSB corresponding to the second SSB, for example: the second SSB is known
  • the GSCN number of the SSB is GSCN1, and the offset value of the GSCN number of the first SSB relative to GSCN1 can be configured, and the GSCN number of the first SSB can be obtained according to the GSCN1 and the offset value.
  • a frequency domain offset (offset) of the first SSB (b) a frequency domain offset (offset) of the first SSB.
  • the value of the frequency domain offset may be indicated by the indication field of the second SSB; it may also be a frequency domain offset value configured for the first SSB relative to the second SSB, the frequency domain offset
  • the value corresponds to the second SSB, that is, after the terminal receives the second SSB, it can know the frequency domain offset value of the first SSB corresponding to the second SSB; the frequency domain offset can also be preset Defined as a fixed value.
  • the frequency domain offset of the first SSB may include one of the following:
  • the position of the target point can be obtained according to the second SSB;
  • the target Type0 PDCCH may be a specific one of the at least two Type0 PDCCHs, for example, the first indivual.
  • the time domain position of the first SSB may include:
  • the time domain index position of the first SSB may include one of the following: (c1) the time domain index position of the second SSB; (c2) the time domain index of the target SSB received at the frequency domain position where the second SSB is located position; wherein, the target SSB is the first SSB that meets the terminal receiving power requirement.
  • the terminal receives N SSBs in the frequency domain where the second SSB is located, and the 1st to N-1 SSBs do not meet the receiving power requirement, and the Nth SSB meets the receiving power requirement, then the Nth SSB is
  • the time domain index position of the Nth SSB is the time domain index position of the first SSB.
  • the position of the first SSB corresponding to the current time domain index can be directly indicated through the indication field of the second SSB, and the index can be one or more; it can also be configured for the first SSB
  • the index position corresponding to the second SSB that is, the index position of the first SSB has a corresponding relationship with the index position of the second SSB, for example: configuring an offset of the index position of the first SSB relative to the index position of the second SSB.
  • the terminal After the terminal receives the second SSB, it can know the index position of the first SSB corresponding to the second SSB, for example: by default (that is, setting the corresponding relationship), the position of the first SSB corresponding to the current time domain index is the first The second SSB corresponds to the position of the current time domain index, or, by default, the position of the first SSB received at the frequency position of the second SSB is the time domain index position of the first SSB, and the first SSB needs to satisfy UE receive power requirement.
  • a time domain offset of the first SSB may be indicated by the indication field of the second SSB; it may also be a time domain offset value configured for the first SSB relative to the second SSB, the time domain offset The value corresponds to the second SSB, that is, after the terminal receives the second SSB, it can know the time domain offset value of the first SSB corresponding to the second SSB, and the time domain offset can also be preset Defined as a fixed value.
  • the time domain offset of the first SSB may include one of the following:
  • the time domain offset relative to the index of the second SSB that is, the time domain offset of the first SSB may be an offset relative to the index of the second SSB.
  • the components of the second SSB include: at least one Type0 PDCCH corresponding to the second SSB.
  • the start/end time domain position of the components of the second SSB for example: the start or End time domain position.
  • the indication field used to indicate the second SSB of the first configuration information may include at least one of the following:
  • BWP Bandwidth Part
  • the terminal can assume that the PDSCH-DMRS location indicator field has a fixed binding relationship with the SSB SCS (for example, one SCS corresponds to one DMRS location), or the PDSCH-DMRS location indicator field has no relationship with the SSB SCS, but a fixed PDSCH-DMRS Location.
  • the configuration indicator field of the PDCCH system information block SIB1 of the PBCH in the second SSB is used to indicate the CORESET and at least some bits of the search space.
  • the terminal may assume that the number of effective entries (ports) in the configuration table of Coreset#0 and/or the configuration table of Search space#0 is reduced.
  • At least some bits in the subcarrier offset of the PBCH in the second SSB that is, some bits in the ssb-SubcarrierOffset of the PBCH in the second SSB, for example: Least Significant Bit (LSB) bits.
  • LSB Least Significant Bit
  • the foregoing embodiment is an implementation process of acquiring the configuration information of the first SSB according to the second SSB.
  • the implementation process of acquiring the configuration information of the first reference signal according to the second SSB will be described below.
  • the first reference signal includes at least one of the following:
  • the DMRS in the PBCH is a DMRS in one (that is, a single) PBCH; or, the DMRS in the PBCH is a DMRS in at least two PBCHs; wherein, the at least two PBCHs include: the The PBCH of the first SSB and/or the PBCH of the second SSB.
  • the DMRS in the PBCH may be DMRS in multiple PBCHs, and the multiple PBCHs may be PBCHs of multiple first SSBs and/or PBCHs of multiple second SSBs.
  • the DMRS in the Type0 PDCCH may be the DMRS in the Type0 PDCCH indicated by one SSB; or, the DMRS in the Type0 PDCCH may be the DMRS in the Type0 PDCCH indicated by at least two SSBs; wherein the at least two The SSBs include: the first SSB and/or the second SSB.
  • CSI-RS Channel State Information Reference Signal
  • the first reference signal includes the TRS and/or the CSI-RS; acquiring configuration information of the first reference signal according to the second SSB of the initial access includes:
  • the configuration information of the first reference signal may be indicated by the indication field of the second SSB, or may be obtained from the correspondence between the second SSB and the second configuration information of the first reference signal And determines.
  • the corresponding relationship between the second SSB and the second configuration information of the first reference signal may be a fixed binding relationship, for example: the network side device pre-configures or pre-defines the first reference signal corresponding to the second SSB
  • the configuration information of the signal is a fixed value. After receiving the second SSB, the terminal can obtain the specific value of the configuration information of the first reference signal according to the corresponding relationship, such as the position of the first reference signal, the first SCS of the reference signal.
  • acquiring the second configuration information according to a correspondence between the second SSB and second configuration information of the first reference signal includes: according to a second target value corresponding to the second SSB, Determine the second configuration information; wherein, the second target value is used to indicate the second configuration information, and the second target value is predefined or preconfigured by a protocol.
  • the network side device may pre-configure or pre-define a fixed value of the second configuration information corresponding to the second SSB, for example: the second configuration information includes the location information of the first reference signal, Then, the position of the first reference signal corresponding to the second SSB can be predefined or preconfigured as the target position, and after receiving the second SSB, the terminal can know the specific location of the first reference signal according to the corresponding relationship. Location.
  • the second configuration information includes at least one of the following:
  • the second configuration information of the first reference signal may include: a frequency domain position, a time domain position, One or more items in SCS.
  • the frequency domain position of the first reference signal may include: the GSCN of the first reference signal; and/or, the frequency domain offset of the first reference signal.
  • the frequency domain offset of the first reference signal includes one of the following:
  • the time domain position of the first reference signal may include: a time domain offset of the first reference signal; the time domain offset of the first reference signal may include one of the following:
  • the components of the second SSB include: at least one Type0 PDCCH corresponding to the second SSB.
  • the indication field used to indicate the second SSB of the second configuration information includes at least one of the following:
  • Intra-frequency reselection indication field of PBCH in the second SSB Intra-frequency reselection indication field of PBCH in the second SSB
  • a reserved field of the PBCH in the second SSB is reserved.
  • the manner of determining the second configuration information of the first reference signal is similar to the manner of determining the first configuration information of the first SSB, which will not be repeated here.
  • the terminal After the terminal obtains the configuration information of the first SSB and/or the first reference signal according to the second SSB, it can detect or demodulate the first SSB and/or the first reference signal according to the configuration information, so as to utilize Perform correlation processing on the first SSB and/or the first reference signal, for example: use the first SSB and/or the first reference signal to jointly perform time synchronization with the second SSB.
  • Perform correlation processing on the first SSB and/or the first reference signal for example: use the first SSB and/or the first reference signal to jointly perform time synchronization with the second SSB.
  • the implementation process of time synchronization will be described below.
  • the UE uses the first SSB in conjunction with the second SSB to perform time synchronization.
  • the location of the first SSB may be indicated by the indication field of the second SSB, or have a corresponding relationship (ie, a binding relationship) with the second SSB. That is, in the initial search phase, the UE blindly detects the second SSB found on the corresponding syncraster (synchronization raster), and performs initial access through the second SSB, and simultaneously performs time synchronization (coarse time synchronization).
  • the first configuration information (such as relevant location information) of the first SSB (non-cell-defined SSB, 960kHz) can be carried in the second SSB; or for each second SSB, the network side device (such as the base station) pre-configures Or the protocol predefines that there are corresponding one or more first SSBs at certain fixed positions (such as frequency point or raster).
  • the first configuration information includes:
  • the frequency domain offset value can be a frequency domain offset relative to the frequency domain position where the second SSB is located; it can also be a frequency domain frequency shift relative to Point A; it can also be a Type0 PDCCH or multiple corresponding to the second SSB
  • (1) Directly indicate the position of the first SSB corresponding to the current time domain index, and the index may be one or more;
  • the first SSB By default (that is, the binding correspondence), the position of the first SSB corresponding to the current time domain index and the position of the second SSB corresponding to the current time domain index; or the first one received at the frequency domain position where the second SSB is located by default Where the SSB is located, the first SSB needs to meet the UE receiving power requirement;
  • the time domain offset value can be an offset relative to the index of the second SSB; it can also be the start or end time domain position of the second SSB or its components, such as the Type0 PDCCH corresponding to the second SSB or multiple Type0 The start or end time domain position of a specific one (eg the first one) of the PDCCHs.
  • the protocol pre-defines or the base station pre-configures the SCS of the first SSB.
  • the UE can know the position of the corresponding first SSB (such as non-cell-defined SSB) according to the second SSB, and the first SSB can use a higher SCS, so as to better perform time compensation (that is, perform accurate time synchronization) for complete time synchronization.
  • first SSB such as non-cell-defined SSB
  • the UE uses the first reference signal in conjunction with the second SSB to perform time synchronization.
  • Mode 1 The DMRS sequence in the PBCH assists the PSS and SSS sequences to jointly perform time compensation, thereby improving the accuracy of time compensation.
  • Method 2 During the initial access, assuming that the SCS of the second SSB is 120K, the SCS of the initial downlink BWP/Type0 PDCCH can be indicated through the relevant indication field in the second SSB, and the SCS of the initial downlink BWP/Type0 PDCCH can be 480 /960kHz. Therefore, the DMRS sequence in the Type0 PDCCH can be used to assist the PSS and SSS sequences to jointly perform time compensation, thereby improving the accuracy of time compensation.
  • an additional reference signal ie, CSI-RS or TRS, may be used for time synchronization. Since the connection state has not been entered at the time of initial access, the positions of these additional reference signals require additional indications or some fixed positions are pre-configured by the network side device or predefined by the protocol, such as:
  • Frequency domain position the indication field of the second SSB indicates or binds the frequency domain offset value.
  • the frequency domain offset value may be a frequency domain offset relative to the frequency domain position where the second SSB is located; it may also be a frequency domain frequency offset relative to PointA; or it may be a frequency domain offset relative to the Type0 PDCCH.
  • Time domain position the indication field of the second SSB indicates or binds the time domain offset value.
  • the time domain offset value may be the time domain or Type0 PDCCH offset relative to the second SSB.
  • the time offset may be at a symbol (symbol) level, or at a time slot (slot) level, or at a time level (for example, millisecond or microsecond level).
  • the UE can use the first SSB in conjunction with the second SSB for time synchronization; it can also use the first reference signal in conjunction with the second SSB for time synchronization; or, use the first SSB and the first reference signal in conjunction with the second SSB Time synchronization is performed, for example, time compensation is performed through DMRS or CSI-RS/TRS in multiple SSBs (the first SSB and/or the second SSB).
  • the terminal detects or demodulates the first SSB and/or the first reference signal according to the second SSB initially accessed, so that the first SSB and/or the first reference signal can be used to combine with the second SSB Subsequent related processing can improve processing accuracy, thereby avoiding system performance degradation.
  • the first SSB and/or the first reference signal can have a higher SCS, which can improve the accuracy of time compensation, thereby avoiding System performance is degraded.
  • the signal acquisition method provided in the embodiment of the present application may be executed by a signal acquisition device, or a control module in the signal acquisition device for executing the signal acquisition method.
  • the signal obtaining device executed by the signal obtaining device is taken as an example to describe the signal obtaining device provided in the embodiment of the present application.
  • the embodiment of the present application also provides a signal acquisition device 400, including:
  • the first obtaining module 410 is configured to obtain configuration information of the first SSB and/or the first reference signal according to the initially accessed second synchronization signal block SSB;
  • a signal processing module 420 configured to detect the first SSB and/or the first reference signal according to the configuration information
  • the second SSB is an SSB defining a cell
  • the first SSB is an SSB of an undefined cell or an SSB of a defined cell.
  • the first obtaining module includes:
  • a first acquiring unit configured to acquire the first configuration information of the first SSB according to the indication field of the second SSB;
  • the second acquiring unit is configured to acquire the first configuration information according to the correspondence between the second SSB and the first configuration information of the first SSB.
  • the first configuration information includes at least one of the following:
  • the subcarrier spacing SCS of the first SSB is the subcarrier spacing SCS of the first SSB.
  • the frequency domain offset of the first SSB includes one of the following:
  • the time domain offset of the first SSB includes one of the following:
  • the components of the second SSB include: at least one Type0 PDCCH corresponding to the second SSB.
  • the time domain index position of the first SSB includes one of the following:
  • the th target SSB is the first SSB that satisfies the receiving power requirement of the terminal.
  • the indication field used to indicate the second SSB of the first configuration information includes at least one of the following:
  • Intra-frequency reselection indication field of PBCH in the second SSB Intra-frequency reselection indication field of PBCH in the second SSB
  • a reserved field of the PBCH in the second SSB is reserved.
  • the second acquiring unit is specifically configured to:
  • the first target value is used to indicate the first configuration information, and the first target value is predefined or preconfigured by a protocol.
  • the first reference signal includes at least one of the following:
  • the DMRS in the PBCH is a DMRS in a PBCH
  • the DMRS in the PBCH is the DMRS in at least two PBCHs
  • the at least two PBCHs include: the PBCH of the first SSB and/or the PBCH of the second SSB.
  • the DMRS in the Type0 PDCCH is the DMRS in the Type0 PDCCH indicated by an SSB;
  • the DMRS in the Type0 PDCCH is the DMRS in the Type0 PDCCH indicated by at least two SSBs;
  • the at least two SSBs include: the first SSB and/or the second SSB.
  • the first reference signal includes the TRS and/or the CSI-RS
  • the first acquisition module includes:
  • a third acquiring unit configured to acquire second configuration information of the first reference signal according to the indication field of the second SSB;
  • a fourth acquiring unit configured to acquire the second configuration information according to the correspondence between the second SSB and the second configuration information of the first reference signal.
  • the second configuration information includes at least one of the following:
  • the subcarrier spacing SCS of the first reference signal is the subcarrier spacing SCS of the first reference signal.
  • the frequency domain offset of the first reference signal includes one of the following:
  • the time domain offset of the first reference signal includes one of the following:
  • the components of the second SSB include: at least one Type0 PDCCH corresponding to the second SSB.
  • the indication field used to indicate the second SSB of the second configuration information includes at least one of the following:
  • Intra-frequency reselection indication field of PBCH in the second SSB Intra-frequency reselection indication field of PBCH in the second SSB
  • a reserved field of the PBCH in the second SSB is reserved.
  • the fourth acquiring unit is specifically configured to:
  • the second target value is used to indicate the second configuration information, and the second target value is predefined or preconfigured by the protocol.
  • the device also includes:
  • a synchronization processing module configured to perform time synchronization according to the second SSB, the first SSB and/or the first reference signal.
  • the synchronization processing module includes:
  • a first processing unit configured to perform coarse time synchronization according to the second SSB
  • the second processing unit is configured to perform precise time synchronization according to the first SSB and/or the first reference signal.
  • the terminal detects or demodulates the first SSB and/or the first reference signal according to the second SSB initially accessed, so that the first SSB and/or the first reference signal can be used to combine with the second SSB Subsequent related processing can improve processing accuracy, thereby avoiding system performance degradation.
  • the first SSB and/or the first reference signal can have a higher SCS, which can improve the accuracy of time compensation, thereby avoiding System performance is degraded.
  • the signal acquisition device provided in the embodiment of the present application is a device capable of performing the above-mentioned signal acquisition method, and all embodiments of the above-mentioned signal acquisition method are applicable to the device, and can achieve the same or similar beneficial effects.
  • the signal acquisition device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
  • the signal acquisition device provided by the embodiment of the present application can realize each process realized by the method embodiments in FIG. 1 to FIG. 3 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • this embodiment of the present application further provides a communication device 500, including a processor 501, a memory 502, and programs or instructions stored in the memory 502 and operable on the processor 501,
  • a communication device 500 including a processor 501, a memory 502, and programs or instructions stored in the memory 502 and operable on the processor 501
  • the communication device 500 is a terminal
  • the program or instruction is executed by the processor 501
  • each process of the above signal acquisition method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, and the processor is used to acquire the configuration information of the first SSB and/or the first reference signal according to the second synchronization signal block SSB initially accessed; according to the Configuring information, detecting the first SSB and/or the first reference signal; or demodulating the first SSB and/or the first reference signal according to the configuration information.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 6 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and a processor 610, etc. at least some of the components.
  • the terminal 600 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 610 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 6 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 604 may include a graphics processor (Graphics Processing Unit, GPU) 6041 and a microphone 6042, and the graphics processor 6041 is used for the image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
  • the display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 607 includes a touch panel 6071 and other input devices 6072 .
  • the touch panel 6071 is also called a touch screen.
  • the touch panel 6071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 6072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 601 receives the downlink data from the network side device, and processes it to the processor 610; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 609 can be used to store software programs or instructions as well as various data.
  • the memory 609 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 609 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • the processor 610 may include one or more processing units; optionally, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 610 .
  • the processor 610 is configured to acquire configuration information of the first SSB and/or the first reference signal according to the initially accessed second synchronization signal block SSB;
  • the terminal detects or demodulates the first SSB and/or the first reference signal according to the second SSB initially accessed, so that the first SSB and/or the first reference signal can be used to combine with the second SSB
  • the first SSB and/or the first reference signal may have a higher SCS, which can improve the accuracy of time compensation, thereby avoiding system performance degradation.
  • the second SSB is an SSB defining a cell
  • the first SSB is an SSB of an undefined cell or an SSB of a defined cell.
  • processor 610 is further configured to:
  • the first configuration information includes at least one of the following:
  • the subcarrier spacing SCS of the first SSB is the subcarrier spacing SCS of the first SSB.
  • the frequency domain offset of the first SSB includes one of the following:
  • the time domain offset of the first SSB includes one of the following:
  • the components of the second SSB include: at least one Type0 PDCCH corresponding to the second SSB.
  • the time domain index position of the first SSB includes one of the following:
  • the target SSB is the first SSB that meets the receiving power requirement of the terminal.
  • the indication field used to indicate the second SSB of the first configuration information includes at least one of the following:
  • Intra-frequency reselection indication field of PBCH in the second SSB Intra-frequency reselection indication field of PBCH in the second SSB
  • a reserved field of the PBCH in the second SSB is reserved.
  • the processor 610 is further configured to: determine the first configuration information according to the first target value corresponding to the second SSB;
  • the first target value is used to indicate the first configuration information, and the first target value is predefined or preconfigured by a protocol.
  • the first reference signal includes at least one of the following:
  • the DMRS in the PBCH is a DMRS in a PBCH
  • the DMRS in the PBCH is the DMRS in at least two PBCHs
  • the at least two PBCHs include: the PBCH of the first SSB and/or the PBCH of the second SSB.
  • the DMRS in the Type0 PDCCH is the DMRS in the Type0 PDCCH indicated by an SSB;
  • the DMRS in the Type0 PDCCH is the DMRS in the Type0 PDCCH indicated by at least two SSBs;
  • the at least two SSBs include: the first SSB and/or the second SSB.
  • the first reference signal includes the TRS and/or the CSI-RS
  • the processor is also used to:
  • the second configuration information includes at least one of the following:
  • the subcarrier spacing SCS of the first reference signal is the subcarrier spacing SCS of the first reference signal.
  • the frequency domain offset of the first reference signal includes one of the following:
  • the time domain offset of the first reference signal includes one of the following:
  • the components of the second SSB include: at least one Type0 PDCCH corresponding to the second SSB.
  • the indication field used to indicate the second SSB of the second configuration information includes at least one of the following:
  • Intra-frequency reselection indication field of PBCH in the second SSB Intra-frequency reselection indication field of PBCH in the second SSB
  • a reserved field of the PBCH in the second SSB is reserved.
  • the processor is also used for:
  • the second target value is used to indicate the second configuration information, and the second target value is predefined or preconfigured by the protocol.
  • the processor is further configured to: perform time synchronization according to the second SSB, the first SSB and/or the first reference signal.
  • the processor is also used for:
  • the terminal detects or demodulates the first SSB and/or the first reference signal according to the second SSB initially accessed, so that the first SSB and/or the first reference signal can be used to combine with the second SSB
  • the first SSB and/or the first reference signal may have a higher SCS, which can improve the accuracy of time compensation, thereby avoiding system performance degradation.
  • the embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, each process of the above embodiment of the signal acquisition method is realized, and the same To avoid repetition, the technical effects will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above signal acquisition method embodiment
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run programs or instructions to implement the above signal acquisition method embodiment
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

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

Abstract

La présente demande divulgue un procédé d'acquisition de signal et un terminal, relatifs au domaine technique de la communication, le procédé d'acquisition de signal dans les modes de réalisation de la présente demande comprenant les étapes suivantes : sur la base d'un second bloc de signal de synchronisation SSB initialement accédé, un terminal acquiert des informations de configuration d'un premier SSB et/ou d'un premier signal de référence (301) ; et, sur la base des informations de configuration, détecter le premier SSB et/ou le premier signal de référence ; ou, sur la base des informations de configuration, démoduler le premier SSB et/ou le premier signal de référence (302).
PCT/CN2022/099573 2021-06-18 2022-06-17 Procédé d'acquisition de signal et terminal WO2022262864A1 (fr)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180367269A1 (en) * 2017-06-16 2018-12-20 Qualcomm Incorporated Signaling information in physical broadcast channel (pbch) demodulation reference signals (dmrs)
CN112134674A (zh) * 2017-03-17 2020-12-25 Oppo广东移动通信有限公司 同步信号块检测方法、同步信号块传输方法、装置及系统
CN112369093A (zh) * 2018-11-30 2021-02-12 Oppo广东移动通信有限公司 同步信号块ssb传输方式的确定方法和设备
CN112449418A (zh) * 2019-08-30 2021-03-05 华为技术有限公司 通信方法及装置
WO2021057589A1 (fr) * 2019-09-26 2021-04-01 大唐移动通信设备有限公司 Procédés d'envoi et de réception de signaux et terminal
CN112788731A (zh) * 2019-11-08 2021-05-11 大唐移动通信设备有限公司 一种信息的发送、接收方法、装置及终端
CN112822774A (zh) * 2019-11-15 2021-05-18 大唐移动通信设备有限公司 一种信息的发送、接收方法、装置及终端

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112134674A (zh) * 2017-03-17 2020-12-25 Oppo广东移动通信有限公司 同步信号块检测方法、同步信号块传输方法、装置及系统
US20180367269A1 (en) * 2017-06-16 2018-12-20 Qualcomm Incorporated Signaling information in physical broadcast channel (pbch) demodulation reference signals (dmrs)
CN112369093A (zh) * 2018-11-30 2021-02-12 Oppo广东移动通信有限公司 同步信号块ssb传输方式的确定方法和设备
CN112449418A (zh) * 2019-08-30 2021-03-05 华为技术有限公司 通信方法及装置
WO2021057589A1 (fr) * 2019-09-26 2021-04-01 大唐移动通信设备有限公司 Procédés d'envoi et de réception de signaux et terminal
CN112788731A (zh) * 2019-11-08 2021-05-11 大唐移动通信设备有限公司 一种信息的发送、接收方法、装置及终端
CN112822774A (zh) * 2019-11-15 2021-05-18 大唐移动通信设备有限公司 一种信息的发送、接收方法、装置及终端

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Radio Resource Control (RRC) protocol specification (Release 16)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 38.331, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. V16.4.1, 30 March 2021 (2021-03-30), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , pages 1 - 949, XP052000246 *
HUAWEI, HISILICON: "Handling of SSB information in MeasurementTimingConfiguration", 3GPP DRAFT; R2-1814145, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Chengdu, China; 20181008 - 20181012, 28 September 2018 (2018-09-28), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051523604 *

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