Information instruction method, information identification method, terminal and base station

Abstract

To provide an information indicating method, an information determination method, a terminal, and a base station that use a non-cell-defining SSB to notify a UE of a sync-raster frequency position where a next cell-defining SSB is located.SOLUTION: The information indicating method includes: indicating, by using a predetermined parameter of a physical broadcast channel (PBCH) in a first system synchronization block (SSB), whether the first SSB includes associated remaining minimum system information (RMSI), or indicating that the first SSB does not include any associated RMSI; and indicating frequency offset information of a synchronization raster where a second SSB is located, where the second SSB is an SSB with the associated RMSI.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This application claims priority from Chinese Patent Application No. 201810032530.2, filed in China on January 12, 2018, the entire contents of which are incorporated herein by reference. The present disclosure relates to the technical field of communication applications, and in particular to an information indication method, an information identification method, a terminal, and a base station. [Background technology]

[0002] In the next-generation radio air interface, a system synchronization block (SSB) transmitted from a base station may or may not have an associated remaining minimum system information (RMSI). If an SSB has an associated RMSI, it is called a cell-defining SSB (CD-SSB). If an SSB does not have an associated RMSI, it is used for radio resource management (RRM) measurements and is called an RRM-SSB. The CD-SSB must be transmitted at a frequency location defined as a synchronization raster. The RRM-SSB may be transmitted at the frequency location of a common resource block (CRB) or at the frequency location of a sync-raster. Furthermore, the sync-raster frequency and the CRB frequency partially overlap.

[0003] When attempting to access a cell, the UE must first search for CD-SSBs at each frequency location of the sync-raster to obtain the RMSI of the cell to be accessed. Because the frequency locations of the sync-raster and the CRBs overlap at some frequency locations, the UE may detect a radio resource management SSB (RRM-SSB) before detecting the CD-SSB. In this situation, if the frequency location of the next sync-raster containing the CD-SSB were directly notified to the UE via the RRM-SSB, the time required for the UE to search for each CD-SSB would be significantly reduced. However, there is currently no proposal for notifying the UE of the frequency location of the sync-raster containing the next CD-SSB using a non-cell-defining SSB. Summary of the Invention [Problem to be solved by the invention]

[0004] The purpose of this disclosure is to provide an information indication method, an information identification method, a terminal, and a base station that solve the conventional problem that there is no proposal on how to notify a UE of the frequency location of the sync-raster where the next CD-SSB is located using a non-cell-defined SSB. [Means for solving the problem]

[0005] In order to achieve the above object, the present disclosure provides an information indication method applied to a base station, Using a predetermined parameter of a physical broadcast channel (PBCH) in a first system synchronization block (SSB), indicating whether the first SSB has associated remaining minimum system information (RMSI) or not, and frequency offset information of a synchronization grid in which the second SSB is located; Here, the second SSB refers to the SSB having an associated RMSI.

[0006] Here, using a predetermined parameter of the PBCH in the first SSB to indicate whether the first SSB has an associated RMSI is: The first SSB includes indicating whether or not there is an associated RMSI using the value of a PRB (Physical Resource Block) grid-offsets parameter.

[0007] Here, using a predetermined parameter of the PBCH in the first SSB to indicate that the first SSB has no associated RMSI and frequency offset information of the synchronization grid in which the second SSB is located includes: This includes using a PRB grid offset (PRB-grid-offsets) parameter value to indicate that the first SSB has no associated RMSI, and using an RMSI physical downlink control channel configuration (RMSI-PDCCH-Config) parameter to indicate frequency offset information of the synchronization grid on which the second SSB is located.

[0008] Here, the value of the PRB-grid-offsets parameter is used to indicate whether the first SSB has an associated RMSI. Indicating that the first SSB has no associated RMSI if the new radio (NR) band in which the base station operates is less than a predetermined frequency threshold and g is greater than a first predetermined threshold; If the NR band in which the base station operates is greater than a predetermined frequency threshold and g is greater than a second predetermined threshold, indicating that the first SSB has no associated RMSI; g represents the value of the PRB-grid-offsets parameter.

[0009] Here, the frequency offset information of the synchronization grid in which the second SSB is located is frequency offset information within the NR band in which the base station operates.

[0010] Here, using the predetermined parameters of the PBCH in the first SSB to indicate the frequency offset information of the synchronization grid where the second SSB is located, including indicating the difference d between the index of the synchronization grid where the second SSB is located and the index of the current synchronization grid by, [Number] the formula of, where the NR band in which the base station operates is smaller than a predetermined frequency threshold, and when g is the first value, or the NR band in which the base station operates is larger than a predetermined frequency threshold, and when g is the second value, n = m, when the NR band in which the base station operates is smaller than a predetermined frequency threshold, and when g is the third value, or when the NR band in which the base station operates is larger than a predetermined frequency threshold, and when g is the fourth value, n = m + c1, when the NR band in which the base station operates is smaller than a predetermined frequency threshold, and when g is the fifth numerical value, n = m + c2, g represents the value of the PRB-grid-offsets parameter, m represents the value of the RMSI-PDCCH-Config parameter, c1 and c2 are both predetermined positive values, and c1 < c2. The first value, the third value, and the fifth value are all larger than a first predetermined threshold, and the second value and the fourth value are both larger than a second predetermined threshold.

[0011] To achieve the above object, an embodiment of the present disclosure further provides an information identification method applied to a terminal, which includes using the predetermined parameters of the PBCH in the first SSB to identify the presence or absence of RMSI related to the first SSB, or the absence of RMSI related to the first SSB, and the frequency offset information of the synchronization grid where the second SSB is located, where the second SSB refers to an SSB having related RMSI.

[0012] Here, determining whether or not the first SSB has an associated RMSI using a predetermined parameter of the PBCH in the first SSB is The method includes using the value of the PRB-grid-offsets parameter to determine whether the first SSB has an associated RMSI.

[0013] Using predetermined parameters of the PBCH in the first SSB to determine that the first SSB has no associated RMSI and frequency offset information of the synchronization grid in which the second SSB is located, It includes using a value of a PRB-grid-offsets parameter to determine that the first SSB has no associated RMSI, and using a RMSI-PDCCH-Config parameter to determine frequency offset information of the synchronization grid in which the second SSB is located.

[0014] Here, determining whether or not the first SSB has an associated RMSI using the value of the PRB-grid-offsets parameter is determining that the first SSB has no associated RMSI if the NR band in which the base station operates is less than a predetermined frequency threshold and g is greater than a first predetermined threshold; determining that the first SSB has no associated RMSI if the NR band in which the base station operates is greater than a predetermined frequency threshold and g is greater than a second predetermined threshold; g represents the value of the PRB-grid-offsets parameter.

[0015] Here, the frequency offset information of the synchronization grid in which the second SSB is located is frequency offset information within the NR band in which the base station operates.

[0016] Here, determining frequency offset information of a synchronization grid in which the second SSB is located using a predetermined parameter of the PBCH in the first SSB includes: The difference d between the index of the synchronization grid in which the second SSB is located and the index of the current synchronization grid is

Number

[0017] To achieve the above object, an embodiment of the present disclosure further provides that the base station includes a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor. Here, when the processor executes the program, using a predetermined parameter of the PBCH in the first SSB, it is realized to indicate the presence or absence of RMSI related to the first SSB, or the absence of RMSI related to the first SSB, and the frequency offset information of the synchronization grid where the second SSB is located. Here, the second SSB refers to an SSB having related RMSI.

[0018] Here, when the processor executes the program, using the value of the PRB-grid-offsets parameter, it is realized to indicate the presence or absence of RMSI related to the first SSB.

[0019] Here, when the processor executes the program, The value of the PRB-grid-offsets parameter is used to indicate that the first SSB has no associated RMSI, and the RMSI-PDCCH-Config parameter is used to indicate the frequency offset information of the synchronization grid where the second SSB is located.

[0020] Here, when the processor executes the program, Indicating that the first SSB has no associated RMSI if the NR band in which the base station operates is less than a predetermined frequency threshold and g is greater than a first predetermined threshold; If the NR band in which the base station operates is greater than a predetermined frequency threshold and g is greater than a second predetermined threshold, indicating that the first SSB has no associated RMSI; g represents the value of the PRB-grid-offsets parameter.

[0021] Here, the frequency offset information of the synchronization grid in which the second SSB is located is frequency offset information within the NR band in which the base station operates.

[0022] Here, when the processor executes the program, The difference d between the index of the synchronization grid in which the second SSB is located and the index of the current synchronization grid is

number

[0023] To achieve the above object, an embodiment of the present disclosure further provides a computer-readable storage medium storing a program that, when executed by a processor, realizes the above information indication method.

[0024] To achieve the above object, an embodiment of the present disclosure further provides a terminal including a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor. Here, when the processor executes the program, Using predetermined parameters of the PBCH in the first SSB, it is realized to identify the presence or absence of RMSI related to the first SSB, or the absence of RMSI related to the first SSB and the frequency offset information of the synchronization grid where the second SSB is located. Here, the second SSB refers to an SSB having related RMSI.

[0025] Here, when the processor executes the program, Using the value of the PRB-grid-offsets parameter, it is realized to identify the presence or absence of RMSI related to the first SSB.

[0026] Here, when the processor executes the program, The value of the PRB-grid-offsets parameter is used to determine that the first SSB has no associated RMSI, and the RMSI-PDCCH-Config parameter is used to determine the frequency offset information of the synchronization grid in which the second SSB is located.

[0027] Here, when the processor executes the program, determining that the first SSB has no associated RMSI if the NR band in which the base station operates is less than a predetermined frequency threshold and g is greater than a first predetermined threshold; determining that the first SSB has no associated RMSI if the NR band in which the base station operates is greater than a predetermined frequency threshold and g is greater than a second predetermined threshold; g represents the value of the PRB-grid-offsets parameter.

[0028] Here, the frequency offset information of the synchronization grid in which the second SSB is located is frequency offset information within the NR band in which the base station operates.

[0029] Here, when the processor executes the program, The difference d between the index of the synchronization grid in which the second SSB is located and the index of the current synchronization grid is

number

[0030] To achieve the above object, an embodiment of the present disclosure further provides a computer-readable storage medium storing a program that, when executed by a processor, realizes the above information identification method.

[0031] To achieve the above object, the base station further provided by the present disclosure includes an instruction module used to indicate the presence or absence of RMSI related to the first SSB or the absence of RMSI related to the first SSB and the frequency offset information of the synchronization grid where the second SSB is located, using a predetermined parameter of the PBCH in the first SSB. Here, the second SSB refers to an SSB having related RMSI.

[0032] To achieve the above object, the terminal further provided by the present disclosure includes a specific module used to identify the presence or absence of RMSI related to the first SSB or the absence of RMSI related to the first SSB and the frequency offset information of the synchronization grid where the second SSB is located, using a predetermined parameter of the PBCH in the first SSB. Here, the second SSB refers to an SSB having related RMSI.

Advantages of the Invention

[0033] The embodiments of the present invention have the beneficial effect of using the non-cell-defined SSB to notify the UE of the frequency location of the sync-raster where the next CD-SSB is located, by indicating, through a predetermined parameter of the PBCH in the non-cell-defined SSB, that the SSB has no associated RMSI and the frequency offset information of the synchronization grid where the next SSB with an associated RMSI is located, so that the terminal can quickly obtain the RMSI of the cell to be accessed based on the predetermined parameter, thereby using the non-cell-defined SSB. [Brief explanation of the drawings]

[0034] [Figure 1] FIG. 1 is a flowchart of an information indication method according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a flowchart of an information identification method according to an embodiment of the present disclosure. [Figure 3] FIG. 3 is a diagram illustrating the configuration of a base station according to an embodiment of the present disclosure. [Figure 4] FIG. 4 is a schematic diagram of a module of a base station according to an embodiment of the present disclosure. [Figure 5] FIG. 5 is a configuration diagram of a terminal according to an embodiment of the present disclosure. [Figure 6] FIG. 6 is a schematic diagram of a module of a terminal according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0035] To make the problems, technical solutions, and advantages of the present disclosure clearer, the following detailed description will be given with reference to specific embodiments and accompanying drawings.

[0036] As shown in FIG. 1, the information indication method applied to the base station provided by the embodiment of the present disclosure includes: Step 101: Using a predetermined parameter of a PBCH in a first SSB, indicating whether the first SSB has an associated RMSI or not, and frequency offset information of a synchronization grid where a second SSB is located; Here, the second SSB refers to the SSB having an associated RMSI.

[0037] Here, the value of a predetermined parameter of the PBCH in the first SSB can indicate whether or not there is an RMSI associated with the first SSB.

[0038] If the value of a predetermined parameter of the PBCH in the first SSB indicates that the first SSB has an associated RMSI, the first SSB is a CD-SSB.

[0039] In addition, when using a predetermined parameter of the PBCH in the first SSB to indicate that the first SSB has no associated RMSI and the frequency offset information of the synchronization grid where the second SSB is located, in this embodiment, 1) The SSB transmission period set by the base station BS is shorter than the RMSI transmission period, so the BS transmits RRM-SSB at the same sync-raster frequency position as the CD-SSB. 2) The BS transmits the RRM-SSB at a certain CRB frequency position, and the CRB frequency position is the frequency position of the sync-raster. It is thought that In the first case, the network needs to inform the terminal UE via a predetermined parameter of the PBCH in the RRM-SSB that the detected SSB is an RRM-SSB without RMSI, but the frequency position of the sync-raster of the CD-SSB is the same as that of the detected RRM-SSB, i.e., the frequency offset to the next sync-raster with the CD-SSB is zero.

[0040] For the second case, the network needs to inform the UE that the detected SSB is an RRM-SSB via a predetermined parameter of the PBCH in the RRM-SSB, while the network also needs to inform the UE of the frequency offset to the next sync-raster with CD-SSB.

[0041] The information indication method according to an embodiment of the present disclosure achieves the purpose of using a non-cell-defined SSB to notify the UE of the frequency location of the sync-raster where the next CD-SSB is located by indicating, through a predetermined parameter of the PBCH in the non-cell-defined SSB, that the SSB has no associated RMSI and the frequency offset information of the synchronization grid where the next SSB with an associated RMSI is located, so that the terminal can quickly obtain the RMSI of the cell to be accessed based on the predetermined parameter.

[0042] As an alternative implementation, step 101 above can be implemented as follows: Step 1011: Using a value of the PRB-grid-offsets parameter, indicating whether the first SSB has an associated RMSI; Here, if the value of the PRB-grid-offsets parameter indicates that the first SSB has an associated RMSI, it indicates that the first SSB is a CD-SSB, and the UE can directly obtain the RMSI of the cell it accesses. The PRB grid offset in the embodiments of the present disclosure may also be referred to as the synchronization subcarrier offset (ssb-subcarrier-offset) in the PBCH.

[0043] When the carrier frequency is lower than 6 GHz, the subcarrier offset between the boundary of an SSB PRB with an associated RMSI and the RMSI PRB has 24 possible values. NR uses 5-bit PRB-grid-offsets to indicate possible subcarrier offset values. Since 5 bits can indicate 32 possible values, in addition to being used to indicate the above 24 possible values, the remaining 8 possible values ​​can be used to indicate that the SSB has no associated RMSI.

[0044] If the carrier frequency is higher than 6 GHz, the subcarrier offset between the boundary of the SSB PRB with associated RMSI and the RMSI PRB has 12 possible values.

[0045] For NR, 4 bits of PRB-grid-offsets are used to indicate possible subcarrier offset values. Since 4 bits can indicate 16 possible values, in addition to being used to indicate the above 12 possible values, the remaining 4 possible values ​​can be used to indicate that there is no RMSI associated with the SSB.

[0046] Therefore, optionally, step 1011 specifically includes: Step 10111: If the NR band in which the base station operates is less than a predetermined frequency threshold and g is greater than a first predetermined threshold, indicating that the first SSB has no associated RMSI; Step 10112: If the NR band in which the base station operates is greater than a predetermined frequency threshold and g is greater than a second predetermined threshold, indicating that the first SSB has no associated RMSI; g represents the value of the PRB-grid-offsets parameter.

[0047] In the embodiment of the present disclosure, the predetermined frequency threshold is specifically 6 GHz, the first predetermined threshold is specifically 23, and the second predetermined threshold is specifically 11.

[0048] Here, step 10111 and step 10112 are two parallel steps.

[0049] As another alternative embodiment, step 101 above can be implemented as follows: The method further includes using a value of a PRB-grid-offsets parameter to indicate that the first SSB has no associated RMSI, and using a RMSI-PDCCH-Config parameter to indicate frequency offset information of the synchronization grid on which the second SSB is located.

[0050] Note that the frequency offset information of the synchronization grid in which the second SSB is located may be indicated using not only the RMSI-PDCCH-Config parameter in the PBCH, but also other parameters in the PBCH.

[0051] As mentioned in step 1011 above, when the carrier frequency is lower than 6 GHz, NR uses 5-bit PRB-grid-offsets to indicate possible subcarrier offset values. Here, the remaining 8 possible values ​​may be used to indicate that the SSB has no associated RMSI, and may be used together with RMSI-PDCCH-Config (8 bits) to indicate the frequency offset of the sync-raster. Here, the maximum number of frequency offset positions of the sync-raster that can be indicated is 8*2 8 =8*256=2048. When the carrier frequency is higher than 6 GHz, NR uses 4 bits of PRB-grid-offsets to indicate possible subcarrier offset values. Here, the remaining 4 possible values ​​may be used to indicate that the SSB has no associated RMSI, and may be used together with RMSI-PDCCH-Config (8 bits) to indicate the frequency offset of the sync-raster. Here, the maximum number of frequency offset positions of the sync-raster that can be indicated is 4*2 8 =4*256=1024. Here, NR defines each sync-raster in three frequency ranges: 0 GHz to 2.65 GHz, 2.4 GHz to 24.25 GHz, and 24.25 GHz to 100 GHz. Since NR does not define a band in the frequency range of 6 to 24.25 GHz, it is sufficient to actually consider how to indicate the frequency offset to the next sync-raster having a CD-SSB via the PBCH parameter in the RRM-SSB, i.e., the RMSI-PDCCH-Config parameter, in the frequency ranges of 0 GHz to 2.65 GHz, 2.4 GHz to 6 GHz, and 24.25 GHz to 100 GHz.

[0052] Furthermore, the total number of sync rasters in the three frequency ranges of 0 GHz to 2.65 GHz, 2.4 GHz to 24.25 GHz, and 24.25 GHz to 100 GHz is 8832, 15174, and 4384, respectively. The frequency offset range to the next sync raster with CD-SSB, which is specified via the PBCH parameters in the RRM-SSB, is limited. That is, when the carrier frequency is lower than 6 GHz, the maximum number of frequency offset positions of the sync raster that can be specified is limited to 8*256=2048. When the carrier frequency is higher than 6 GHz, the maximum number of frequency offset positions of the sync raster that can be specified is limited to 4*256=1024. Therefore, it is not possible to specify all sync rasters within the frequency ranges of 0 GHz to 2.65 GHz, 2.4 GHz to 6 GHz, and 24.25 GHz to 100 GHz using the PBCH parameters in the SSB. In the frequency ranges of 0 GHz to 2.65 GHz, 2.4 GHz to 6 GHz, and 24.25 GHz to 100 GHz, the maximum bandwidth of the NR band is 90 MHz, 900 MHz, and 3.25 GHz, respectively. Therefore, in this embodiment, the parameters of the PBCH in the SSB are used to indicate the frequency offset position of the sync-raster within the bandwidth of the band within the frequency range.

[0053] Specifically, the maximum number of sync-raster positions in one NR band in each frequency range can be obtained based on the maximum bandwidth of the NR band in the frequency ranges of 0 GHz to 2.65 GHz, 2.4 GHz to 6 GHz, and 24.25 GHz to 100 GHz and the NR sync-raster definition in those frequency ranges. Details are described below.

[0054] For the frequency range of 0GHz~2.65GHz, the maximum number of sync-raster positions is 90MHz / 900kHz*3=300, For the frequency range of 2.4GHz~6GHz, the maximum number of sync-raster positions is 900MHz / 1.44MHz / 3=208. For the frequency range of 24.25GHz to 100GHz, the maximum number of sync-raster positions is 3.25GHz / 17.28MHz=188. Therefore, in this embodiment, optionally, the frequency offset information of the synchronization grid in which the second SSB is located is frequency offset information within the NR band in which the base station operates.

[0055] Based on this, as an optional implementation, in step 101, using a predetermined parameter of the PBCH in the first SSB to indicate frequency offset information of the synchronization grid in which the second SSB is located, The difference d between the index of the synchronization grid in which the second SSB is located and the index of the current synchronization grid is

number

[0056] Here, this embodiment can be applied to the following three application scenarios. a) Based on three different frequency ranges, indicate the frequency offset positions of the next sync-raster with CD-SSB. For the frequency range of 0 GHz to 2.65 GHz, the number of sync-raster positions to be indicated is N = 300, For the frequency range of 2.4 GHz - 6 GHz, the number of sync-raster positions to be indicated is N = 208, For the frequency range of 24.25 GHz - 100 GHz, the number of sync-raster positions to be indicated is N = 188. b) Based on two different frequency ranges, indicate the frequency offset positions of the next sync-raster with CD-SSB. When the frequency range is 6 GHz or less, the number of sync-raster positions to be indicated is N = 300, When the frequency range is 6 GHz or more, the number of sync-raster positions to be indicated is N = 188. c) The frequency offset position of the next sync-raster with CD-SSB to be indicated is independent of the frequency range, and the number of sync-raster positions to be indicated is N = 300. Specifically, if the number of sync-raster positions in a frequency range is N, the range of possible values ​​for the next sync-raster is [-N+1, N-1], where N is not limited to the number of sync-raster positions to be indicated in the above application scenario.

[0057] Alternatively, c1 is 256 and c2 is 512.

[0058] Here, specific implementation means are shown in Table 1.

[0059] [Table 1]

[0060] Note that in the above table, when the frequency range is 6 GHz or less, eight remaining values, i.e., {24, 25, ..., 31}, are available for the PRB grid offset parameter. When the frequency range is 6 GHz or more, four remaining values, i.e., {12, 13, 14, 15}, are available for the PRB grid offset parameter. The remaining values ​​for the PRB grid offset parameter used in Table 1 may be replaced with other values.

[0061] The information indication method according to an embodiment of the present disclosure achieves the purpose of using a non-cell-defined SSB to notify the UE of the frequency location of the sync-raster where the next CD-SSB is located by indicating, through a predetermined parameter of the PBCH in one non-cell-defined SSB, that the SSB has no associated RMSI and the frequency offset information of the synchronization grid where the next SSB with an associated RMSI is located, so that the terminal can quickly obtain the RMSI of the cell to be accessed based on the predetermined parameter.

[0062] As shown in FIG. 2 , an embodiment of the present disclosure further provides an information identification method applied to a terminal, which includes: Step 201: Using a predetermined parameter of the PBCH in the first SSB, determining whether the first SSB has an associated RMSI or not, and frequency offset information of the synchronization grid where the second SSB is located; Here, the second SSB refers to the SSB having an associated RMSI.

[0063] As an alternative implementation, step 201 above can be implemented as follows: The method includes step 2011 of determining whether the first SSB has an associated RMSI using the value of the PRB-grid-offsets parameter.

[0064] As an alternative implementation, step 201 above can be implemented as follows: Step 20111: If the NR band in which the base station operates is less than a predetermined frequency threshold and g is greater than a first predetermined threshold, determining that the first SSB has no associated RMSI; Step 20112: If the NR band in which the base station operates is greater than a predetermined frequency threshold and g is greater than a second predetermined threshold, determining that the first SSB has no associated RMSI; g represents the value of the PRB-grid-offsets parameter.

[0065] Here, step 20111 and step 20112 are two parallel steps.

[0066] As an alternative implementation, step 201 above can be implemented as follows: The method may further include using a value of a PRB-grid-offsets parameter to determine that the first SSB has no associated RMSI, and using a RMSI-PDCCH-Config parameter to determine frequency offset information of the synchronization grid in which the second SSB is located.

[0067] The PRB grid offset in the embodiments of the present disclosure may also be referred to as the synchronization subcarrier offset (ssb-subcarrier-offset) in the PBCH.

[0068] Note that the frequency offset information of the synchronization grid in which the second SSB is located may be specified using not only the RMSI-PDCCH-Config parameter in the PBCH, but also other parameters in the PBCH.

[0069] Also, according to the above description, in the embodiment of the present disclosure, the parameter of the PBCH in the SSB is used to indicate the frequency offset position of the sync-raster within the bandwidth of the band within the frequency range. Therefore, in this embodiment, optionally, the frequency offset information of the synchronization grid in which the second SSB is located is frequency offset information within the NR band in which the base station operates.

[0070] Based on the above, as an optional implementation, determining frequency offset information of the synchronization grid where the second SSB is located using a predetermined parameter of the PBCH in the first SSB in step 201 can be: The difference d between the index of the synchronization grid in which the second SSB is located and the index of the current synchronization grid is

number

[0071] Since this formula has been described in detail in the embodiment of the method on the base station side, no redundant description will be given here.

[0072] In the information identification method according to the embodiment of the present disclosure, by using a predetermined parameter of the PBCH in the first SSB to identify the presence or absence of RMSI related to the first SSB, or the absence of RMSI related to the first SSB, and the frequency offset information of the synchronization grid where the second SSB is located, the purpose of using the non-cell-defined SSB to notify the UE of the frequency position of the sync-raster where the next CD-SSB is located is achieved.

[0073] As shown in FIG. 3, the embodiment of the present disclosure further provides a base station including a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, The step of using a predetermined parameter of the PBCH in the first SSB to indicate the presence or absence of RMSI related to the first SSB, or the absence of RMSI related to the first SSB, and the frequency offset information of the synchronization grid where the second SSB is located is realized. Here, the second SSB refers to an SSB having related RMSI.

[0074] In FIG. 3, the bus architecture includes any number of interconnecting buses and bridges, specifically connecting one or more processors, such as processor 300, to various types of memory circuits, such as memory 320. The bus architecture may also connect various types of other circuits, such as peripheral equipment, regulators, and power management circuits. These are all well known in the art and will not be further described herein. The bus interface provides the interface. The transceiver 310 may be multiple components, i.e., includes a transmitter and a receiver, and is provided as a unit for communicating with various types of other devices over a transmission medium. The processor 300 manages the bus architecture and normal processing. The memory 320 can store data used by the processor 300 to perform operations.

[0075] The processor 300 manages the bus architecture and normal processing. The memory 320 can store data used by the processor 300 to perform operations.

[0076] The processor 300 is further adapted to read the program in the memory 320 and execute the step of using the value of the PRB-grid-offsets parameter to indicate whether the first SSB has an associated RMSI.

[0077] The processor 300 is further used for reading the program in the memory 320 and executing the steps of using the value of the PRB-grid-offsets parameter to indicate that the first SSB has no associated RMSI, and using the RMSI-PDCCH-Config parameter to indicate the frequency offset information of the synchronization grid on which the second SSB is located.

[0078] The processor 300 reads a program in the memory 320 to indicate that if the NR band in which the base station operates is less than a predetermined frequency threshold and g is greater than a first predetermined threshold, the first SSB has no associated RMSI; When the NR band in which the base station operates is greater than a predetermined frequency threshold and g is greater than a second predetermined threshold, it is further used to execute the step of instructing that there is no associated RMSI in the first SSB. g represents the value of the PRB-grid-offsets parameter.

[0079] Optionally, the frequency offset information of the synchronization grid where the second SSB is located is the frequency offset information within the NR band in which the base station operates.

[0080] The processor 300 reads the program in the memory 320. The difference d between the index of the synchronization grid where the second SSB is located and the index of the current synchronization grid is

Equation

[0081] <OO00431>Some embodiments of the present disclosure provide a computer-readable storage medium having stored thereon a computer program, the computer program, when executed by a processor, A step of indicating whether the first SSB has an associated RMSI or not, or that the first SSB does not have an associated RMSI, and frequency offset information of the synchronization grid in which the second SSB is located, is realized using predetermined parameters of the PBCH in the first SSB. Here, the second SSB refers to the SSB having an associated RMSI.

[0082] When the program is executed by a processor, it can realize all the implementation methods of the embodiments of the information indication method applied to the terminal side, and to avoid repetition, no detailed description will be given here.

[0083] As shown in FIG. 4, the embodiment of the present disclosure further provides a base station, An indication module 401 is used to indicate whether the first SSB has an associated RMSI or not, and frequency offset information of a synchronization grid where the second SSB is located, using a predetermined parameter of the PBCH in the first SSB; Here, the second SSB refers to the SSB having an associated RMSI.

[0084] For the base station according to the embodiment of the present disclosure, the indication module 401 is used to indicate whether the first SSB has an associated RMSI by using the value of the PRB-grid-offsets parameter.

[0085] For a base station according to an embodiment of the present disclosure, the indication module 401 is used to indicate that the first SSB has no associated RMSI using the value of the PRB-grid-offsets parameter, and to indicate the frequency offset information of the synchronization grid where the second SSB is located using the RMSI-PDCCH-Config parameter.

[0086] For a base station according to an embodiment of the present disclosure, the indicating module 401 is used to indicate that the first SSB has no associated RMSI when the NR band in which the base station operates is less than a predetermined frequency threshold and g is greater than a first predetermined threshold; and When the NR band in which the base station operates is greater than a predetermined frequency threshold and g is greater than a second predetermined threshold, the first SSB is used to indicate that there is no associated RMSI; g represents the value of the PRB-grid-offsets parameter.

[0087] For a base station according to an embodiment of the present disclosure, the frequency offset information of the synchronization grid in which the second SSB is located is frequency offset information within the NR band in which the base station operates.

[0088] For a base station according to an embodiment of the present disclosure, the indication module 401 calculates the difference d between the index of the synchronization grid where the second SSB is located and the index of the current synchronization grid as:

number

[0089] Regarding the base station according to an embodiment of the present disclosure, in order for the terminal to quickly obtain the RMSI of the cell to be accessed based on a predetermined parameter, the SSB has no related RMSI, and the frequency offset information of the synchronization grid where the next SSB having the related RMSI is located is indicated by a predetermined parameter of the PBCH in one non-cell-defined SSB, so as to utilize the non-cell-defined SSB to achieve the purpose of notifying the UE of the frequency position of the sync-raster where the next CD-SSB is located.

[0090] As shown in FIG. 3, an embodiment of the present disclosure further provides a terminal including a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, The step of using a predetermined parameter of the PBCH in the first SSB to identify the presence or absence of related RMSI in the first SSB, or the fact that there is no related RMSI in the first SSB, and the frequency offset information of the synchronization grid where the second SSB is located is realized. Here, the second SSB refers to an SSB having related RMSI.

[0091] In FIG. 5, the bus architecture may include any number of interconnecting buses and bridges, specifically connecting one or more processors, such as processor 500, to various types of memory, such as memory 520. The bus architecture may also connect various types of other circuits, such as peripheral equipment, regulators, and power management circuits. These are all well known in the art and will not be further described herein. The bus interface provides an interface. The transceiver 510 may be multiple components, such as a transmitter and a receiver, and may be provided as a unit for communicating with various types of other devices over a transmission medium. Depending on the user terminal, the user interface 530 may be an interface for internal or externally connected devices. Connected devices may include, but are not limited to, a keypad, a display, a speaker, a microphone, a joystick, etc.

[0092] The processor 500 manages the bus architecture and normal processing. The memory 520 can store data used by the processor 500 to perform operations. The processor 500 is adapted to read the program in the memory 520 and execute the step of determining whether the first SSB has an associated RMSI using the value of the PRB-grid-offsets parameter.

[0093] The processor 500 is further used for reading the program in the memory 520 and performing the steps of: determining that the first SSB has no associated RMSI using the value of the PRB-grid-offsets parameter; and determining frequency offset information of the synchronization grid in which the second SSB is located using the RMSI-PDCCH-Config parameter.

[0094] The processor 500 reads the program in the memory 520, If the NR band in which the base station operates is less than a predetermined frequency threshold and g is greater than a first predetermined threshold, determining that the first SSB has no associated RMSI; When the NR band in which the base station operates is greater than a predetermined frequency threshold and g is greater than a second predetermined threshold, it is further used to perform the step of identifying that there is no associated RMSI in the first SSB. g represents the value of the PRB-grid-offsets parameter.

[0095] Optionally, the frequency offset information of the synchronization grid where the second SSB is located is the frequency offset information within the NR band in which the base station operates.

[0096] The processor 500 reads the program in the memory 520. The difference d between the index of the synchronization grid where the second SSB is located and the index of the current synchronization grid is

Number

[0097] Some embodiments of the present disclosure further provide a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements a step of using predetermined parameters of the PBCH in the first SSB to determine whether the first SSB has an associated RMSI or whether the first SSB does not have an associated RMSI, and frequency offset information of the synchronization grid in which the second SSB is located. Here, the second SSB refers to the SSB having an associated RMSI.

[0098] When the program is executed by a processor, it can realize all the implementation methods of the embodiments of the information identification method applied to the terminal side, and to avoid repetition, detailed description will not be given here.

[0099] As shown in FIG. 6, the embodiment of the present disclosure further provides a terminal: The method includes: including an identifying module 601, which is used to identify whether the first SSB has an associated RMSI or not, and frequency offset information of a synchronization grid where the second SSB is located, using a predetermined parameter of the PBCH in the first SSB; Here, the second SSB refers to the SSB having an associated RMSI.

[0100] For a terminal according to an embodiment of the present disclosure, the identification module is used to identify whether the first SSB has an associated RMSI by using the value of a PRB-grid-offsets parameter.

[0101] For a terminal according to an embodiment of the present disclosure, the identification module is used to determine that the first SSB has no associated RMSI using the value of the PRB-grid-offsets parameter, and to identify the frequency offset information of the synchronization grid in which the second SSB is located using the RMSI-PDCCH-Config parameter.

[0102] For a terminal according to an embodiment of the present disclosure, the identifying module is configured to identify that the first SSB has no associated RMSI if the NR band in which the base station operates is less than a predetermined frequency threshold and g is greater than a first predetermined threshold; and The NR band in which the base station operates is greater than a predetermined frequency threshold, and g is used to determine that the first SSB has no associated RMSI if it is greater than a second predetermined threshold; g represents the value of the PRB-grid-offsets parameter.

[0103] For a terminal according to an embodiment of the present disclosure, the frequency offset information of the synchronization grid in which the second SSB is located is frequency offset information within the NR band in which the base station operates.

[0104] For a terminal according to an embodiment of the present disclosure, the identifying module calculates the difference d between the index of the synchronization grid in which the second SSB is located and the index of the current synchronization grid as:

number

[0105] For the terminal according to the embodiments of the present disclosure, by using the predetermined parameters of the PBCH in the first SSB to identify the presence or absence of related RMSI in the first SSB, or the absence of related RMSI in the first SSB, and the frequency offset information of the synchronization grid where the second SSB is located, the non-cell-defined SSB is utilized to achieve the purpose of notifying the UE of the frequency position of the sync-raster where the next CD-SSB is located.

[0106] In various embodiments of the present disclosure, the sequence numbers of the above processes do not mean the execution order, and the execution order of each process should be determined according to its function and internal logic, and does not constitute any limitation to the implementation process of the embodiments of the present disclosure.

[0107] The above description is a selective embodiment of the present disclosure, and those skilled in the art can make several improvements and modifications that should be considered in the same way as the protection scope of the present disclosure without departing from the principle of the present disclosure.

Claims

1. An information indication method applied to a base station, comprising: Using a predetermined parameter of a Physical Broadcast Channel (PBCH) in a first System Synchronization Block (SSB), the first SSB indicates that the first SSB has no associated Remaining Minimum System Information (RMSI) and frequency offset information of a synchronization grid in which the second SSB is located; wherein the second SSB refers to an SSB having an associated RMS; The predetermined parameters of the PBCH in the first SSB include a PRB (Physical Resource Block) grid offset PRB-grid-offsets parameter; The PRB-grid-offsets parameter is a value indicating a subcarrier offset value between the boundary of an SSB PRB with an associated RMSI and the RMSI PRB; a remainder value that is used together with the RMSI-PDCCH-Config parameter to indicate a maximum number of frequency offset positions of the synchronization grid; Wherein, if the remainder values ​​are different, the maximum number of frequency offset positions of the synchronization grid is different.

2. The information indication method according to claim 1, wherein the frequency offset information of the synchronization grid in which the second SSB is located is frequency offset information within the NR band in which the base station operates.

3. Indicating frequency offset information of a synchronization grid in which the second SSB is located using a predetermined parameter of the PBCH in the first SSB includes: The difference d between the index of the synchronization grid in which the second SSB is located and the index of the current synchronization grid is [0011] and indicating by the formula: Here, if the NR band in which the base station operates is smaller than a predetermined frequency threshold and g is a first value, or if the NR band in which the base station operates is larger than a predetermined frequency threshold and g is a second value, n=m, If the NR band in which the base station operates is smaller than the predetermined frequency threshold and g is a third value, or if the NR band in which the base station operates is larger than the predetermined frequency threshold and g is a fourth value, n=m+c1; If the NR band in which the base station operates is less than a predetermined frequency threshold and g is a fifth number, then n=m+c2; 2. The information indication method of claim 1, wherein g represents the value of the PRB-grid-offsets parameter, m represents the value of the RMSI-PDCCH-Config parameter, c1 and c2 are all predetermined positive values, and c1<c2, the first value, the third value, and the fifth value are all greater than a first predetermined threshold, and the second value and the fourth value are all greater than a second predetermined threshold.

4. An information identification method applied to a terminal, comprising: Using a predetermined parameter of the PBCH in the first SSB, determining that the first SSB has no associated RMSI and frequency offset information of a synchronization grid in which the second SSB is located; wherein the second SSB refers to an SSB having an associated RMSI; The predetermined parameters of the PBCH in the first SSB include a PRB-grid-offsets parameter; The PRB-grid-offsets parameter is a value indicating a subcarrier offset value between the boundary of an SSB PRB with an associated RMSI and the RMSI PRB; a remainder value that is used together with the RMSI-PDCCH-Config parameter to indicate a maximum number of frequency offset positions of the synchronization grid; Wherein, if the remainder values ​​are different, the maximum number of frequency offset positions of the synchronization grid is different.

5. The information identification method according to claim 4, wherein the frequency offset information of the synchronization grid in which the second SSB is located is frequency offset information within the NR band in which the base station operates.

6. Identifying frequency offset information of a synchronization grid in which a second SSB is located using a predetermined parameter of a PBCH in the first SSB includes: The difference d between the index of the synchronization grid in which the second SSB is located and the index of the current synchronization grid is [0012] and specifying the Here, if the NR band in which the base station operates is smaller than a predetermined frequency threshold and g is a first value, or if the NR band in which the base station operates is larger than a predetermined frequency threshold and g is a second value, n=m, If the NR band in which the base station operates is smaller than the predetermined frequency threshold and g is a third value, or if the NR band in which the base station operates is larger than the predetermined frequency threshold and g is a fourth value, n=m+c1; If the NR band in which the base station operates is less than a predetermined frequency threshold and g is a fifth number, then n=m+c2; The information identification method according to claim 5, wherein g represents the value of a PRB-grid-offsets parameter, m represents the value of an RMSI-PDCCH-Config parameter, c1 and c2 are all predetermined positive values, and c1 < c2, the first value, the third value, and the fifth value are all greater than a first predetermined threshold, and the second value and the fourth value are all greater than a second predetermined threshold.

7. A base station, An indication module is used to indicate, using a predetermined parameter of the PBCH in the first SSB, that the first SSB has no associated RMSI and frequency offset information of a synchronization grid in which the second SSB is located; wherein the second SSB refers to an SSB having an associated RMSI; The predetermined parameters of the PBCH in the first SSB include a PRB-grid-offsets parameter; The PRB-grid-offsets parameter is a value indicating a subcarrier offset value between the boundary of an SSB PRB with an associated RMSI and the RMSI PRB; a remainder value that is used together with the RMSI-PDCCH-Config parameter to indicate a maximum number of frequency offset positions of the synchronization grid; wherein, when the remainder values ​​are different, the maximum number of frequency offset positions of the synchronization grid is different.

8. A terminal, The method includes: including an identifying module for identifying, using a predetermined parameter of the PBCH in the first SSB, that the first SSB has no associated RMSI and frequency offset information of a synchronization grid in which the second SSB is located; wherein the second SSB refers to an SSB having an associated RMSI; The predetermined parameters of the PBCH in the first SSB include a PRB-grid-offsets parameter; The PRB-grid-offsets parameter is a value indicating a subcarrier offset value between the boundary of an SSB PRB with an associated RMSI and the RMSI PRB; a remainder value that is used together with the RMSI-PDCCH-Config parameter to indicate a maximum number of frequency offset positions of the synchronization grid; Here, when the remainder values ​​are different, the maximum number of frequency offset positions of the synchronization grid is different.

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