Method and apparatus for determining access resources, storage medium, terminal

Abstract

A method and device for determining access resources, a storage medium and a terminal, the method comprising: determining the frequency domain position of a narrowband CORESET0 and / or a narrowband initial active downlink BWP, and / or determining a narrowband SIB1. The present application provides a feasible technical solution for narrowband UEs to acquire a narrowband CORESET0 and a narrowband initial active downlink BWP.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, and more specifically to a method and apparatus for determining access resources, a storage medium, and a terminal. Background Technology

[0002] The 3rd Generation Partnership Project (3GPP) standards organization is researching New Radio (NR) systems for fifth-generation mobile communications (5G). Future NR protocols can support narrowband user equipment (UEs), meaning UEs with bandwidth less than 100MHz. This type of UE is used for Machine Type Communication (MTC) or Internet of Things (IoT) communications.

[0003] Generally, a UE needs to support at least the maximum bandwidth of Control Resource SET0 (CORESET0) and / or the Initial Activation Downlink BWP. During initial access, the UE obtains the bandwidth of CORESET0 through information carried by the PBCH. Generally, CORESET0 is the control resource set carrying Type 0-PDCCH (i.e., RMSI PDCCH or SIB1PDCCH). By default, the CORESET0 bandwidth is also the bandwidth of the Initial Activation Downlink BWP. Generally, the frequency domain resources of the Physical Downlink Shared Channel (PDSCH) carrying System Information Block 1 (SIB1) are limited to the Initial Activation Downlink BWP (Bandwidth Part, BWP). Furthermore, after obtaining SIB1, the Initial Activation Downlink BWP can be further extended to achieve greater flexibility. Specifically, the extended bandwidth of the Initial Activation Downlink BWP can be transmitted to the UE through signaling in SIB1.

[0004] However, for narrowband UEs, the maximum bandwidth of CORESET0 and / or the initial activation downlink BWP may exceed the bandwidth supported by the narrowband UE. In this case, how the narrowband UE acquires and configures a new narrowband CORESET0 and / or the initial activation downlink BWP is a problem that urgently needs to be solved. Summary of the Invention

[0005] The technical problem solved by this invention is how a narrowband UE can obtain narrowband CORESET0, or how to obtain narrowband initial activation downlink BWP.

[0006] To address the aforementioned technical problems, embodiments of the present invention provide a method for determining access resources, comprising: determining the frequency domain location of narrowband CORESET0.

[0007] Optionally, the bandwidth of the narrowband CORESET0 is a preset value.

[0008] Optionally, determining the frequency domain location of narrowband CORESET0 includes: the lowest PRB of narrowband CORESET0 is equal to the lowest PRB of CORESET0.

[0009] Optionally, the offset between the lowest PRB of the narrowband CORESET0 and the lowest PRB of CORESET0 or the synchronization signal block is a preset value.

[0010] Optionally, the bandwidth of the offset is greater than or equal to the bandwidth of the narrowband CORESET0.

[0011] Optionally, the offset contains a number of PRBs greater than or equal to the number of PRBs contained in the narrowband CORESET0.

[0012] Optionally, the determining method further includes: obtaining the offset between the narrowband CORESET0 and CORESET0 or the synchronization signal block.

[0013] Optionally, determining the narrowband CORESET0 includes: determining the lowest PRB of the narrowband CORESET0 based on the offset.

[0014] Optionally, if it is in frequency range 1, the offset is carried in the synchronization signal block index within the PBCH.

[0015] Optionally, if it is in frequency range 2, the offset is carried in the Type0-PDCCH listening timing indication.

[0016] Optionally, when the synchronization signal block and CORESET multiplexing mode are 2, the offset is carried in the Type0-PDCCH listening timing indication.

[0017] Optionally, when the synchronization signal block and CORESET multiplexing mode are 3, the offset is carried in the Type0-PDCCH listening timing indication.

[0018] Optionally, determining the narrowband CORESET0 includes: receiving the narrowband PBCH to obtain narrowband PBCH information; and obtaining the narrowband CORESET0 based on the narrowband PBCH information.

[0019] Optionally, the bandwidth of the narrowband PBCH is a preset value.

[0020] Optionally, the offset between the lowest PRB of the narrowband PBCH and the lowest PRB of the synchronization signal block is a preset value.

[0021] Optionally, the bandwidth of the offset is greater than or equal to the bandwidth of the narrowband PBCH.

[0022] Optionally, the offset includes a number of PRBs greater than or equal to the number of PRBs included in the narrowband PBCH.

[0023] To address the aforementioned technical problems, this invention also provides another method for determining access resources, including: determining the frequency domain position of the narrowband initial activated downlink BWP.

[0024] Optionally, the bandwidth of the initial activation downlink BWP in the narrowband is a preset value.

[0025] Optionally, determining the frequency domain position of the narrowband initial activation downlink BWP includes: the lowest PRB of the narrowband initial activation downlink BWP is equal to the lowest PRB of CORESET0.

[0026] Optionally, the offset between the lowest PRB of the narrowband initial activated downlink BWP and the lowest PRB of CORESET0 is a preset value.

[0027] Optionally, the bandwidth of the offset is greater than or equal to the bandwidth of the narrowband initial activation downlink BWP.

[0028] Optionally, the offset includes a number of PRBs greater than or equal to the number of PRBs included in the narrowband initial activation downlink BWP.

[0029] Optionally, the determination method further includes: obtaining the offset between the narrowband initial activation downlink BWP and the synchronization signal block.

[0030] Optionally, determining the frequency domain position of the narrowband initial activation downlink BWP includes: determining the lowest PRB of the narrowband initial activation downlink BWP based on the offset.

[0031] Optionally, if it is in frequency range 1, the offset is carried in the synchronization signal block index within the PBCH.

[0032] Optionally, if it is in frequency range 2, the offset is carried in the Type0-PDCCH listening timing indication.

[0033] Optionally, when the synchronization signal block and CORESET multiplexing mode are 2, the offset is carried in the Type0-PDCCH listening timing indication.

[0034] Optionally, when the synchronization signal block and CORESET multiplexing mode are 3, the offset is carried in the Type0-PDCCH listening timing indication.

[0035] Optionally, determining the narrowband initial activation downlink BWP includes: receiving the narrowband PBCH to obtain narrowband PBCH information; and obtaining the narrowband initial activation downlink BWP based on the narrowband PBCH information.

[0036] Optionally, the bandwidth of the narrowband PBCH is a preset value.

[0037] Optionally, the offset between the lowest PRB of the narrowband PBCH and the lowest PRB of the synchronization signal block is a preset value.

[0038] Optionally, the bandwidth of the offset is greater than or equal to the bandwidth of the narrowband PBCH.

[0039] Optionally, the offset includes a number of PRBs greater than or equal to the number of PRBs included in the narrowband PBCH.

[0040] To address the aforementioned technical problems, embodiments of the present invention also provide an access resource determination device, comprising: a first determination module, adapted to determine the frequency domain location of a narrowband CORESET0.

[0041] To address the aforementioned technical problems, embodiments of the present invention also provide an access resource determination device, comprising: a second determination module, adapted to determine the frequency domain position of the narrowband initial activated downlink BWP.

[0042] To address the aforementioned technical problems, embodiments of the present invention also provide a storage medium storing computer instructions, which, when executed, perform the steps of the above-described method.

[0043] To address the aforementioned technical problems, this invention also provides a terminal, including a memory and a processor. The memory stores computer instructions that can be executed on the processor, and the processor executes the steps of the above-described method when running the computer instructions.

[0044] Compared with the prior art, the technical solution of the embodiments of the present invention has the following beneficial effects:

[0045] In this embodiment of the invention, the lowest PRB of the narrowband CORESET0 or the lowest PRB of the narrowband initial activation downlink BWP is equal to the lowest PRB of CORESET0, so that the narrowband UE can obtain the narrowband CORESET0 and / or the narrowband initial activation downlink BWP based on CORESET0, providing a feasible solution for obtaining the narrowband CORESET0, the PDSCH carrying SIB1, and the narrowband initial activation downlink BWP.

[0046] Furthermore, the offset between the lowest PRB of the narrowband CORESET0 and the lowest PRB of CORESET0 or the synchronization signal block is a preset value, and / or, the offset between the lowest PRB of the narrowband initial activation downlink BWP and the lowest PRB of CORESET0 is a preset value. In this embodiment of the invention, by setting a preset offset between the narrowband CORESET0 and / or the narrowband initial activation downlink BWP and CORESET0, a feasible solution is provided for obtaining the narrowband CORESET0, the PDSCH carrying SIB1, and the narrowband initial activation downlink BWP.

[0047] Furthermore, the offset between the narrowband CORESET0 and CORESET0 or the synchronization signal block is a preset value, or the offset between the narrowband CORESET0 and CORESET0 is a preset value. In this embodiment of the invention, by setting the offset between the narrowband CORESET0 and CORESET0 to a preset value, a feasible solution can be provided for obtaining the narrowband CORESET0 and the PDSCH carrying SIB1, as well as the initial activation of the narrowband downlink BWP.

[0048] Furthermore, the Type0-PDCCH in CORESET0 is received to obtain PDSCH scheduling information based on the Type0-PDCCH; based on the scheduling information, the PDSCH is received to obtain the narrowband SIB1. This embodiment of the invention obtains the PDSCH containing narrowband SIB1 through the Type0-PDCCH, enabling the narrowband UE to obtain the narrowband SIB1, thus providing the possibility for the narrowband UE to obtain the narrowband CORESET0 and the PDSCH carrying SIB1, as well as the initial activation of the narrowband downlink BWP.

[0049] Furthermore, the offset between the lowest PRB of the narrowband PBCH and the lowest PRB of the synchronization signal block is a preset value. This embodiment of the invention, by setting a preset offset between the narrowband PBCH and the synchronization signal block, enables the narrowband UE to obtain the PDSCH of the narrowband CORESET0 and SIB1 bearers, as well as to initially activate the downlink BWP in the narrowband.

[0050] Furthermore, it also includes: receiving Type0-PDCCH from CORESET0 to obtain PDSCH scheduling information based on the Type0-PDCCH; and receiving the PDSCH based on the scheduling information to obtain SIB1. The technical solution provided by the embodiments of the present invention enables a narrowband UE to receive the PDSCH of SIB1 and to perform narrowband initial activation of downlink BWP.

[0051] Furthermore, the method also includes: receiving a Type 0B-PDCCH from CORESET0, wherein the Type 0B-PDCCH is used to schedule the PDSCH carrying narrowband SIB1; obtaining scheduling information of the PDSCH carrying narrowband SIB1 based on the Type 0B-PDCCH; and receiving the PDSCH carrying narrowband SIB1 based on the scheduling information to obtain the narrowband SIB1. The technical solution provided by this embodiment allows a narrowband UE to receive SIB1 or narrowband SIB1 on demand, which helps save terminal power consumption. Attached Figure Description

[0052] Figure 1 This is a flowchart illustrating a method for determining access resources according to an embodiment of the present invention;

[0053] Figure 2 This is a schematic diagram of the structure of a resource access determination device according to an embodiment of the present invention. Detailed Implementation

[0054] As mentioned in the background section, the existing technology lacks a technical solution for acquiring and configuring narrowband CORESET0 and / or narrowband initial activation downlink BWP.

[0055] Specifically, in NR Release 15, synchronization signals and broadcast channel signals are transmitted in the form of synchronization signal blocks (Signal and Physical Broadcast Channel Blocks). Furthermore, the 5G system introduces beam sweeping functionality. Each synchronization signal block can be viewed as a resource corresponding to one beam during the beam sweeping process. A synchronization signal block includes the Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), and Physical Broadcast Channel (PBCH) signals. Multiple synchronization signal blocks can form a synchronization signal burst. A synchronization signal burst can be viewed as a relatively concentrated resource containing multiple beams. Multiple synchronization signal bursts form a synchronization signal burst set. Synchronization signal blocks are repeatedly transmitted on different beams to complete the beam sweeping process. Through beam sweeping training, user equipment can determine which beam receives the strongest signal.

[0056] For example, we can assume that the time-domain positions of the L synchronization signal blocks are fixed within a 5-millisecond (ms) window. That is, the transmission time and index of the synchronization signal blocks are fixed within the 5ms window. The indices of the L synchronization signal blocks are consecutively arranged in the time domain, from 0 to (L-1), where L is a positive integer.

[0057] Furthermore, the Remaining Minimum System Information (RMSI, also known as SIB1, or System Information Block 1) in Release 15NR is equivalent to SIB1 in LTE, and it includes the main system information besides the MIB. RMSI is also referred to as SIB1. RMSI is carried in the PDSCH, which is scheduled through the Physical Downlink Control Channel (PDCCH). The PDSCH carrying the RMSI is generally called the RMSI PDSCH, and the PDCCH that schedules the RMSI PDSCH is generally called the RMSI PDCCH.

[0058] Generally, a search space set contains properties such as the PDCCH listening timing and search space type. The search space set is typically bound to a control resource set (CORESET), which contains properties such as the PDCCH's frequency domain resources and duration.

[0059] The search space set containing the RMSI PDCCH (or SIB1 PDCCH, or Type0-PDCCH) is generally referred to as the Type0-PDCCH search space set or Type0-PDCCH common search space set. It is typically configured by the MIB, or by Radio Resource Control (RRC) during handover or other situations. Generally, the Identity (ID) corresponding to the Type0-PDCCH search space set is 0, therefore it can also be called search space 0 (or search space set 0), and the associated CoreSet is called CoreSet 0. Besides the RMSI PDCCH search space set, other common search spaces or sets of common search spaces, such as the Other System Information (OSI) PDCCH search space set (Type 0A-PDCCH search space set), the Random Access Response (RAR) PDCCH search space set (Type 1-PDCCH search space set), and the paging PDCCH search space set (Type 2-PDCCH search space set), can be the same as search space set 0 by default. Generally, the above common search spaces or sets of common search spaces can be reconfigured.

[0060] The timing of RMSI PDCCH listening is related to the synchronization signal block. The UE obtains this relationship based on the RMSI PDCCH listening timing table. During the initial access process, when the UE detects a synchronization signal block, it determines the time domain position (start symbol index or first symbol index) of the RMSI PDCCH associated with that synchronization signal block based on the row index of the table indicated by the PBCH. This allows the UE to detect the RMSI PDCCH and receive and decode it according to the RMSI PDCCH schedule.

[0061] In Release 15NR, the UE decodes the RMSI PDCCH, obtains multiple bits of time-domain resource allocation, and uses these bits to look up a predefined table to obtain the starting symbol index (or number) and symbol length (or duration) of the RMSI PDCCH.

[0062] In Release 15NR, during the initial access phase, the UE assumes that the RMSI PDSCH does not perform rate matching on the synchronization signal block. The RMSI can indicate whether the synchronization signal block has been transmitted. After the UE obtains the RMSI, it can perform rate matching on the synchronization signal block indicated by the RMSI.

[0063] The UE needs to obtain timing information through the synchronization signal block. Timing information, also known as frame timing information or half-frame timing information, is generally used to indicate the timing of the frame or half-frame corresponding to the detected synchronization signal. After obtaining the frame timing information, the UE uses the SFN (System Frame Number) to obtain the complete timing information of the cell corresponding to the synchronization signal block. After obtaining the half-frame timing information, the UE uses the half-frame indication (first or second half of the frame) and the SFN to obtain the complete timing information of the cell corresponding to the synchronization signal block.

[0064] Generally, the UE obtains timing information within 10 milliseconds by acquiring the synchronization block index. In the licensed spectrum, the synchronization block index is related to L candidate positions of the synchronization block, where L is a positive integer. When L = 4, the lower 2 bits (2 LSBs) of the synchronization block index are carried in the PBCH-DMRS (PBCH demodulation reference signal); when L > 4, the lower 3 bits (3 LSBs) of the synchronization block index are carried in the PBCH-DMRS; when L = 64, the higher 3 bits (3 MSBs) of the synchronization block index are carried in the PBCH payload or MIB.

[0065] In Release 15NR, for a given UE, its corresponding paging timing consists of multiple paging PDCCH listening timings. Within a paging timing, the paging PDCCH can be transmitted via beam sweep, just like the synchronization signal block. Within a paging timing, there is a one-to-one correspondence between the paging PDCCH listening timing and the synchronization signal block; that is, within a paging timing, the Kth paging PDCCH listening timing corresponds to the Kth synchronization signal block.

[0066] In LTE Release 13's enhanced Machine-Type Communication (eMTC), the eMTC UE is a narrowband UE. The bandwidth of an eMTC UE is approximately 1 MHz, covering six PRBs. Therefore, upon initial access, the eMTC UE can detect the LTE Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), and Physical Broadcast Channel (PBCH). Because the PBCH carries the Master Information Block (MIB), the eMTC UE can decode the LTE MIB. Furthermore, the LTE MIB has 10 reserved bits, a portion of which can be used to carry information for scheduling eMTC's SIB1 (SIB1-BR, different from LTE SIB1). By default, the frequency domain resources of the PDSCH carrying eMTC SIB1 are also within the six Physical Resource Blocks (PRBs). Therefore, the eMTC UE can also receive the PDSCH carrying eMTC SIB1. In this way, after the eMTC UE decodes the LTE MIB, it obtains the eMTC SIB1 information and then accesses the network.

[0067] In Release-15NR, the UE typically supports a 100MHz bandwidth. During initial access, the UE blindly detects the PSS / SSS / PBCH in the synchronization signal block to obtain the MIB and time index information carried within the PBCH. The UE uses the information in the MIB to obtain the configuration of the CORESET (which can be called CORESET0) and search space set (which can be called search space set 0) to which the PDSCH carrying SIB1 (or RMSI) belongs. Therefore, the UE can listen to the Type 0-PDCCH of the PDSCH carrying SIB1 and decode SIB1. Since the bandwidth of CORESET0 is set through a table within the PBCH, the maximum bandwidth of CORESET0 is implicitly defined in the protocol. Furthermore, the protocol specifies that the frequency domain resources of the PDSCH carrying SIB1 are within the bandwidth (PRB) of CORESET0; therefore, the maximum bandwidth of the PDSCH carrying SIB1 is also implicitly defined in the protocol.

[0068] Currently, for narrowband UEs, it may be necessary to define narrowband CORESET0 and / or narrowband initial activation downlink BWP (i.e., the frequency range of the PDSCH carrying narrowband SIB1), and / or narrowband SIB1 (or narrowband RMSI), because CORESET0 or initial activation downlink BWP or SIB1 (RMSI) may not be suitable for narrowband UE reception. Generally, during initial access, the bandwidth of narrowband CORESET0 is defaulted to the narrowband initial activation downlink BWP, and the bandwidth of the narrowband initial activation downlink BWP can be extended after obtaining additional information. Existing technologies have not yet provided a solution for how narrowband UEs acquire and configure narrowband CORESET0 (or the CORESET of the Type 0-PDCCH commonsearch space set) and the narrowband initial activation downlink BWP, nor have they provided a solution for how to acquire and configure the narrowband initial activation downlink BWP.

[0069] This invention provides a method for determining access resources, including: determining the frequency domain location of narrowband CORESET0 and / or narrowband initial activation downlink BWP. Generally, the bandwidth of narrowband CORESET0 is less than or equal to the bandwidth of CORESET0, and the bandwidth of narrowband PBCH is less than or equal to the bandwidth of PBCH. By determining the frequency domain locations of narrowband PBCH, narrowband CORESET0, and narrowband initial activation downlink BWP, this invention can determine the access resources of a narrowband UE, thereby acquiring and configuring narrowband CORESET0 and the PDSCH carrying SIB1, as well as the maximum bandwidth of narrowband initial activation downlink BWP.

[0070] The lowest PRB of the narrowband CORESET0 is equal to the lowest PRB of CORESET0, and / or the lowest PRB of the narrowband initial activation downlink BWP is equal to the lowest PRB of CORESET0. In this embodiment of the invention, the lowest PRB of the narrowband CORESET0 and / or the lowest PRB of the narrowband initial activation downlink BWP are equal to the lowest PRB of CORESET0, enabling the narrowband UE to obtain the narrowband CORESET0 and / or the narrowband initial activation downlink BWP based on CORESET0, providing a feasible solution for obtaining the narrowband CORESET0, the PDSCH carrying SIB1, and the narrowband initial activation downlink BWP.

[0071] To make the above-mentioned objectives, features and beneficial effects of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0072] The technical solutions provided in this invention are applicable to 5G communication systems, as well as 4G and 3G communication systems, and can also be applied to various communication systems that evolve subsequently.

[0073] The technical solutions of the present invention are also applicable to different network architectures, including but not limited to relay network architecture, dual-link architecture, vehicle-to-everything (V2X) communication architecture, etc.

[0074] In the embodiments of this invention, "multiple" refers to two or more. It is understood that in the various embodiments of this application, the sequence numbers of the processes shown in the accompanying drawings do not imply a specific order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0075] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article indicates that the preceding and following related objects have an "or" relationship.

[0076] The descriptions of "first," "second," etc., appearing in the embodiments of this invention are for illustrative purposes and to distinguish the objects being described. They do not indicate any particular order and do not imply any special limitation on the number of devices in the embodiments of this invention. They do not constitute any limitation on the embodiments of this invention.

[0077] In the embodiments of this invention, "connection" refers to various connection methods such as direct connection or indirect connection to achieve communication between devices. The embodiments of this invention do not impose any limitations on this.

[0078] The following detailed description of various exemplary embodiments of the present disclosure is based on the accompanying drawings. The flowcharts and block diagrams in the drawings illustrate the architecture, functionality, and operation of possible implementations of methods and systems according to various embodiments of the present disclosure. It should be noted that each block in a flowchart or block diagram may represent a module, segment, or portion of code, which may include one or more executable instructions for implementing the logical functions specified in the various embodiments. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutively represented blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a flowchart and / or block diagram, and combinations of blocks in flowcharts and / or block diagrams, may be implemented using a dedicated hardware-based system that performs the specified functions or operations, or using a combination of dedicated hardware and computer instructions. It should also be noted that the sequence numbers of the steps in the flowcharts do not represent a limitation on the order in which the steps are executed.

[0079] Figure 1 This is a flowchart illustrating a method for determining access resources. The method can be used on the terminal (User Equipment, UE) side and may include only step S101, or it may include both steps S101 and S102.

[0080] Step S101: Determine the frequency domain position of narrowband CORESET0 and / or narrowband initial activation downlink BWP, and / or determine narrowband SIB1.

[0081] Generally, the bandwidth of the narrowband CORESET0 is less than or equal to the bandwidth of CORESET0, and the bandwidth of the narrowband PBCH is less than or equal to the bandwidth of PBCH.

[0082] More specifically, in step S101, in one embodiment, the narrowband UE can reuse the synchronization signal block of Release 15. The access resources of the narrowband CORESET0 and the narrowband UE can have a preset association relationship. In a specific implementation, the preset association relationship may include: the bandwidth of the narrowband CORESET0 and / or the narrowband initial activation downlink BWP is a preset value. This preset value is associated with the band. In a specific implementation, the preset association relationship may include: the lowest PRB of the PDSCH of the narrowband CORESET0 is equal to the lowest PRB of CORESET0, and / or, the lowest PRB of the narrowband initial activation downlink BWP is equal to the lowest PRB of CORESET0. This preset value is associated with the band. Based on the preset association relationship, the narrowband UE can determine the frequency domain location of the narrowband CORESET0, and / or, the narrowband initial activation downlink BWP that the narrowband UE can use.

[0083] Furthermore, those skilled in the art will understand that, under normal circumstances, the frequency domain resources of the narrowband initial activation downlink BWP of a narrowband UE are equal to the frequency domain resources of the narrowband CORESET0 by default. Therefore, after determining the narrowband initial activation downlink BWP, the frequency domain resources of the narrowband CORESET0 can also be known.

[0084] In one embodiment, the bandwidth of the narrowband CORESET0 can be a preset value, and / or, the bandwidth of the narrowband initial activation downlink BWP can be a preset value. The preset value is related to the frequency band accessed by the narrowband UE.

[0085] In another embodiment, the narrowband UE can reuse the synchronization signal block of Release 15. The narrowband CORESET0 and the access resources of the narrowband UE can have a preset association relationship. In specific implementations, the preset association relationship may include: the offset between the lowest PRB of the narrowband CORESET0 and the lowest PRB of CORESET0 or the synchronization signal block is a preset value; and / or, the offset between the lowest PRB of the narrowband initial activation downlink BWP and the lowest PRB of CORESET0 is a preset value. Based on the preset association relationship and the offset, the narrowband UE can determine the frequency domain position of the narrowband CORESET0, and / or the narrowband initial activation downlink BWP, and / or the frequency domain resources of the PDSCH carrying SIB1. In this embodiment of the invention, the lowest PRB of the synchronization signal block can be the lowest PRB in the Common RB that overlaps with the lowest PRB of the synchronization signal block. It should be noted that sometimes, the truly lowest subcarrier of the synchronization signal block may have a subcarrier-level offset from the lowest subcarrier of this PRB. In this invention, the frequency domain offset of any frequency domain resource (such as CORESET0, narrowband CORESET0, initial activation downlink BWP, etc.) and the synchronization signal block can refer to the offset between the lowest PRB of the frequency domain resource and the lowest PRB in the Common RB that overlaps with the lowest PRB of the synchronization signal block.

[0086] For example, the bandwidth of the offset is greater than or equal to the bandwidth of the narrowband CORESET0, and / or the bandwidth of the offset is greater than or equal to the bandwidth of the narrowband initial activation downlink BWP.

[0087] For example, the number of PRBs included in the offset is greater than or equal to the number of PRBs included in the narrowband CORESET0, and / or the number of PRBs included in the offset is greater than or equal to the number of PRBs included in the narrowband initial activation downlink BWP.

[0088] Furthermore, the narrowband UE can determine the lowest PRB of the narrowband CORESET0 based on the offset between the narrowband CORESET0 and the CORESET0 or synchronization signal block. Alternatively, it can determine the lowest PRB of the narrowband initial activation downlink BWP based on the offset between the narrowband initial activation downlink BWP and the synchronization signal block.

[0089] Furthermore, if the narrowband UE is located in Frequency Range 1 (FR1), the base station can place the offset in the PBCH, carried by the synchronization block index within the PBCH. This is because, for FR1, the synchronization block index within the PBCH is a reserved bit and is not used to indicate the synchronization block index.

[0090] As a variation, if the narrowband UE is located in Frequency Range 2 (FR2), the base station can place the offset in the PBCH and carry it in the Type0-PDCCH listening timing indication. In a specific embodiment, when the synchronization signal block and CORESET multiplexing mode are 2 or 3, the Type0-PDCCH listening timing indication can be semantically equivalent to the Type0-PDCCH listening timing table, because in this case, 3 bits of the Type0-PDCCH listening timing indication are reserved and can be used to indicate the offset.

[0091] As another variation, when the synchronization signal block and CORESET multiplexing mode are 2, the offset is carried during the Type0-PDCCH listening time.

[0092] As another variation, when the synchronization signal block and CORESET multiplexing mode are 3, the offset is carried in the Type0-PDCCH listening timing indication.

[0093] In another embodiment, the narrowband UE can reuse the PSS and SSS of Release 15 and employ a narrowband PBCH different from the PBCH in the prior art. This narrowband PBCH refers to the PBCH used by the narrowband UE, and generally its bandwidth is less than or equal to the PBCH bandwidth. Under this condition, the narrowband UE can first receive the PBCH, which may indicate that the narrowband UE is receiving it. When the PBCH indicates the presence of a narrowband PBCH, the narrowband UE can receive the narrowband PBCH and determine the frequency domain position of the initial activation downlink BWP for the narrowband.

[0094] When a narrowband UE can reuse the PSS and SSS of Release 15 and uses a narrowband PBCH, the bandwidth of the narrowband PBCH can be set to a preset value. This preset value is related to the frequency band accessed by the narrowband UE. Similarly, when a narrowband UE can reuse the PSS and SSS of Release 15 and uses a narrowband PBCH, the offset between the lowest PRB of the narrowband PBCH and the lowest PRB of the synchronization signal block can be set to a preset value. This preset value is related to the frequency band accessed by the narrowband UE. In specific implementations, the bandwidth of the offset can be greater than or equal to the bandwidth of the narrowband PBCH. Alternatively, the number of PRBs included in the offset can be greater than or equal to the number of PRBs included in the narrowband PBCH.

[0095] In another embodiment, the narrowband UE may employ entirely new narrowband PSS, narrowband SSS, and narrowband PBCH. In a specific implementation, the narrowband UE can blindly detect the narrowband PSS and narrowband SSS to obtain the time-frequency position of the narrowband PBCH. Then, the narrowband UE receives the narrowband PBCH to obtain narrowband PBCH information. Generally, the bandwidth of the narrowband PSS is less than or equal to the bandwidth of the PSS, and the bandwidth of the narrowband SSS is less than or equal to the bandwidth of the SSS. The narrowband PBCH information may include: the offset between the lowest PRB of the narrowband CORESET0 and / or the narrowband initial activation downlink BWP and the lowest PRB of the synchronization signal block. Further, the narrowband UE can obtain the frequency domain position of the narrowband CORESET0 and / or the narrowband initial activation downlink BWP, as well as the frequency domain resources of the narrowband initial activation downlink BWP.

[0096] Then, step S102 can be performed, namely, receiving CORESET0 and / or narrowband initial activation downlink BWP at the frequency domain location, and / or receiving narrowband SIB1.

[0097] When the bandwidth supported by the narrowband UE is less than the maximum bandwidth of CORESET0 or the PDSCH carrying SIB1, the narrowband UE can obtain the narrowband CORESET0 and the narrowband initial activation downlink BWP in the manner described in the following specific embodiments.

[0098] Example 1: Reusing the synchronization signal block of Release 15.

[0099] For the bandwidth of narrowband CORESET0 and / or narrowband initially activated downlink BWP, by default, the narrowband UE assumes that the bandwidth of narrowband CORESET0 and / or narrowband initially activated downlink BWP has a preset correlation with the bandwidth required for access. The following scheme can be adopted for the frequency domain location of narrowband CORESET0 and / or narrowband initially activated downlink BWP:

[0100] Option 1: By default, the lowest PRB of narrowband CORESET0 and / or narrowband initial activation downlink BWP is the lowest PRB of CORESET0. This option is suitable for situations where there are more time-frequency resources for CORESET0 and more time-frequency resources for PDSCH carrying SIB1, because in this case, some resources of CORESET0 may be occupied by the Type0-PDCCH of narrowband CORESET0, and some resources of PDSCH carrying SIB1 may be occupied by the narrowband initial activation downlink BWP.

[0101] Option 2: By default, the offset between the lowest PRB of narrowband CORESET0 and / or narrowband initial activation downlink BWP and the lowest PRB of CORESET0 or the synchronization signal block is a preset value. The bandwidth corresponding to the preset value is greater than or equal to the bandwidth of narrowband CORESET0 and / or narrowband initial activation downlink BWP. That is, the number of PRBs corresponding to the preset value bandwidth under a certain subcarrier interval is greater than or equal to the number of PRBs corresponding to the bandwidth of narrowband CORESET0 and / or narrowband initial activation downlink BWP under a certain subcarrier interval. This option is suitable for situations where there are limited time-frequency resources for CORESET0 and limited time-frequency resources for the PDSCH carrying SIB1.

[0102] Option 3: The narrowband UE obtains the position of the narrowband CORESET0 by acquiring the offset between the synchronization signal block or CORESET0 and the narrowband CORESET0. More specifically, the narrowband UE obtains the position of the lowest PRB of the narrowband CORESET0 by acquiring the offset between the lowest PRB of the synchronization signal block or CORESET0 and the lowest PRB of the narrowband CORESET0. Since the synchronization signal block of Release 15 is reused, the offset can be transmitted through reserved bits or reserved codepoints within the synchronization signal block.

[0103] For frequency range 1, the narrowband UE can obtain the offset by acquiring the synchronization block index (i.e., the high 3 bits of the synchronization block time index, 3MSB) within the PBCH. For frequency range 2, the narrowband UE can obtain the offset by acquiring the reserved bits or codepoints of the Type0-PDCCH listening timing indicator (4 bits, defined by a table) within the PBCH. In one example, when the synchronization block and CORESET multiplexing mode is 2 in FR2, the Type0-PDCCH listening timing indicator represents the offset. In another example, when the synchronization block and CORESET multiplexing mode is 3 in FR2, the Type0-PDCCH listening timing indicator represents the offset.

[0104] Example 2: Reusing the PSS / SSS of Release 15 with a narrowband PBCH.

[0105] By default, the bandwidth of the narrowband PBCH is a preset value. This preset value is associated with the band. By default, the offset between the lowest PRB of the narrowband PBCH and the lowest PRB of the synchronization signal block is a preset value. The bandwidth corresponding to this offset is greater than or equal to the bandwidth of the narrowband PBCH. That is, the number of PRBs corresponding to the offset in a certain subcarrier interval is greater than or equal to the number of PRBs corresponding to the bandwidth of the narrowband PBCH in a certain subcarrier interval. The UE obtains the bandwidth and frequency domain position of the narrowband CORESET0 and / or the narrowband initially activated downlink BWP by obtaining the narrowband PBCH indication. Specifically, the narrowband UE can obtain the frequency domain position of the narrowband CORESET0 and / or the narrowband initially activated downlink BWP by obtaining the offset between the lowest PRB of the synchronization signal block indicated by the narrowband PBCH and the lowest PRB of the narrowband CORESET0 and / or the narrowband initially activated downlink BWP.

[0106] Example 3: Whether a narrowband UE fully reuses the Release 15 synchronization signal block is indicated by the PBCH.

[0107] The narrowband UE receives the PBCH and learns from the PBCH information (e.g., MIB) whether it fully reuses the synchronization signal block of Release 15. In specific implementations, when the bandwidth supported by the narrowband UE is greater than or equal to the maximum bandwidth of the PDSCH carrying CORESET0 or SIB1, the narrowband UE can obtain the narrowband CORESET0 and the PDSCH carrying narrowband SIB1 by receiving the PDSCH carrying CORESET0 or SIB1.

[0108] Example 4:

[0109] The narrowband UE can receive the Type0-PDCCH in CORESET0 to obtain the scheduling information of the PDSCH carrying the SIB. Then, the narrowband UE can use the scheduling information to receive the PDSCH carrying the SIB and obtain the SIB message. The SIB message may contain the narrowband CORESET0 and / or the narrowband initial activation downlink BWP. For example, the SIB message may contain both narrowband SIB1 and SIB1 messages. The narrowband SIB1 message may contain narrowband CORESET0 and / or the narrowband initial activation downlink BWP. The advantage of this technical solution is that the narrowband UE receives both SIB1 and narrowband SIB1, and some information in SIB1 is useful to the narrowband UE, such as cell-level information; the narrowband UE can obtain these useful SIB messages.

[0110] Example 5:

[0111] A narrowband UE can receive Type 0B-PDCCH from CORESET0, where Type 0B-PDCCH is the PDCCH that schedules the PDSCH carrying narrowband SIB1. Subsequently, the narrowband UE can obtain the scheduling information of the PDSCH carrying narrowband SIB1 from Type 0B-PDCCH. The narrowband UE can receive the PDSCH carrying narrowband SIB1 to acquire narrowband SIB1. The bandwidth of narrowband SIB1 is less than or equal to the bandwidth of SIB1. The narrowband UE can also receive Type 0A-PDCCH from CORESET0, where Type 0A-PDCCH is the PDCCH that schedules the PDSCH carrying OSI. Subsequently, the narrowband UE can obtain the scheduling information of the PDSCH carrying OSI from Type 0A-PDCCH. The narrowband UE can receive the PDSCH carrying OSI to acquire OSI. OSI may include narrowband SIB1. The advantage of this technical solution is that the narrowband UE can selectively receive either SIB1 or narrowband SIB1, saving terminal power consumption. In practical applications, depending on base station instructions or different scenarios, a narrowband UE can select either the current SIB1 or the narrowband SIB1 to receive. Specifically, the UE can obtain messages in the paging process. If the message indicates a system information update, the UE can receive SIB1; if the message indicates a narrowband system update, the UE can receive narrowband SIB1.

[0112] Example 6:

[0113] In practical implementation, the type 0-PDCCH can be used to indicate whether the PDSCH carrying narrowband SIB1 is scheduled. For example, a bit in the PBCH information can be used to indicate whether a narrowband PBCH exists.

[0114] In specific implementation, the PBCH can indicate the offset between the synchronization signal block and CORESET0. The existence of a narrowband PBCH is determined by comparing the offset with a threshold. If the offset is less than or equal to a certain threshold, it indicates the existence of a narrowband PBCH, and the frequency domain position of the narrowband CORESET0 and / or the initial activation downlink BWP is determined according to the scheme provided in Embodiment 2. Otherwise, if the offset is greater than the threshold, the frequency domain position of the narrowband CORESET0 and / or the initial activation downlink BWP can be determined according to Embodiment 1.

[0115] Those skilled in the art will understand that when the offset is zero or positive, the lowest PRB of the synchronization signal block has a higher number in the Common Resource Block than the lowest PRB of CORESET0. The advantage of this is that if the offset is less than or equal to a certain threshold, the bottom of the synchronization signal block and the frequency domain resources of CORESET0 are approximately aligned. Therefore, the base station can continuously allocate PRBs for the frequency domain resources of the PDSCH carrying SIB1 (including narrowband SIB1) starting above the highest PRB of the synchronization signal block. Otherwise, there is a certain frequency domain gap between the bottom of the synchronization signal block and the frequency domain resources of CORESET0. Therefore, the base station can continuously allocate PRBs for the frequency domain resources of the PDSCH carrying SIB1 starting above the highest PRB of the synchronization signal block, while the frequency domain resources for the narrowband initial activation downlink BWP can be continuously allocated starting from the lowest PRB of CORESET0, thereby achieving full utilization of resources.

[0116] Therefore, the technical solution provided by the embodiments of the present invention provides a feasible solution for determining the access resources of a narrowband UE, thereby obtaining and configuring the PDSCH of the narrowband CORESET0 and the SIB1 bearer, as well as the maximum bandwidth of the frequency domain resources for the initial activation of the downlink BWP in the narrowband.

[0117] Figure 2 This is a schematic diagram of the structure of an access resource determination device according to an embodiment of the present invention. The access resource determination device 2 (hereinafter referred to as determination device 2) can be used to implement... Figure 1 The method and technical solution shown are executed by the UE.

[0118] Specifically, the determining device 2 may include: a determining module 21, adapted to determine the frequency domain position of narrowband CORESET0 and / or narrowband initial activation downlink BWP, and / or determine narrowband SIB1.

[0119] In specific implementations, the minimum PRB of the narrowband CORESET0 and / or the narrowband initial activation downlink BWP can be equal to the minimum PRB of CORESET0.

[0120] In specific implementation, the bandwidth of the narrowband CORESET0 and / or the narrowband initial activation downlink BWP is a preset value.

[0121] In specific implementation, the lowest PRB of the narrowband CORESET0 is equal to the lowest PRB of CORESET0, and / or, the lowest PRB of the narrowband initial activation downlink BWP is equal to the lowest PRB of CORESET0.

[0122] In specific implementation, the offset between the lowest PRB of the narrowband CORESET0 and the lowest PRB of CORESET0 or the synchronization signal block is a preset value, and / or the offset between the lowest PRB of the narrowband initial activation downlink BWP and the lowest PRB of CORESET0 is a preset value.

[0123] In specific implementations, the bandwidth of the offset is greater than or equal to the bandwidth of the narrowband CORESET0, and / or the bandwidth of the offset is greater than or equal to the bandwidth of the narrowband initial activation downlink BWP.

[0124] In specific implementations, the number of PRBs included in the offset is greater than or equal to the number of PRBs included in the narrowband CORESET0, and / or the number of PRBs included in the offset is greater than or equal to the number of PRBs included in the narrowband initial activation downlink BWP.

[0125] In a specific implementation, the determining device 2 may further include: an acquisition module 22, adapted to acquire the offset between the narrowband CORESET0 and CORESET0 or the synchronization signal block, and / or acquire the offset between the narrowband initial activation downlink BWP and the synchronization signal block.

[0126] In a specific implementation, the determining module 21 may include: a first determining submodule 211, adapted to determine the minimum PRB of the narrowband CORESET0 and / or the minimum PRB of the narrowband initial activation downlink BWP based on the offset.

[0127] In a specific implementation, if it is located in frequency range 1, the offset is carried in the synchronization signal block index within the PBCH.

[0128] In a specific implementation, if it is located in frequency range 2, the offset is carried in the Type0-PDCCH listening timing indication.

[0129] In specific implementation, when the synchronization signal block and CORESET multiplexing mode are 2, the offset is carried in the Type0-PDCCH listening timing indication.

[0130] In specific implementation, when the synchronization signal block and CORESET multiplexing mode are 3, the offset is carried in the Type0-PDCCH listening timing indication.

[0131] In a specific implementation, the determining module 21 is adapted to receive the narrowband PBCH to obtain narrowband PBCH information; based on the narrowband PBCH information, it obtains narrowband CORESET0 and / or narrowband initial activation downlink BWP.

[0132] In specific implementation, the offset between the lowest PRB of the narrowband PBCH and the lowest PRB of the synchronization signal block is a preset value.

[0133] In a specific implementation, the bandwidth of the offset is greater than or equal to the bandwidth of the narrowband PBCH.

[0134] In a specific implementation, the number of PRBs included in the offset is greater than or equal to the number of PRBs included in the narrowband PBCH.

[0135] In a specific implementation, the determining module 21 may include: a first receiving submodule 212, adapted to receive Type0-PDCCH in CORESET0 to obtain PDSCH scheduling information based on the Type0-PDCCH; and a second receiving submodule 213, adapted to receive the PDSCH based on the scheduling information to obtain the narrowband SIB1.

[0136] In a specific implementation, the determining module 21 may include: a third receiving submodule 214, which receives the Type0-PDCCH in CORESET0 to obtain the PDSCH scheduling information based on the Type0-PDCCH if the bit in the PBCH indicates that the Type0-PDCCH schedules the PDSCH carrying the narrowband SIB1, or if the offset between the synchronization signal block indicated in the PBCH and CORESET0 is less than or equal to a preset threshold; and a fourth receiving submodule 215, which is adapted to receive the PDSCH based on the scheduling information to obtain the narrowband SIB1.

[0137] In a specific implementation, the determining module 21 is further adapted to receive the Type0B-PDCCH in CORESET0, the Type0B-PDCCH being used to schedule the PDSCH carrying the narrowband SIB1; obtain the scheduling information of the PDSCH carrying the narrowband SIB1 based on the Type0B-PDCCH; and receive the PDSCH based on the scheduling information to obtain the narrowband SIB1.

[0138] In a specific implementation, if the bits in the PBCH indicate that the Type0-PDCCH schedules the PDSCH carrying narrowband SIB1, or if the offset between the synchronization signal block indicated in the PBCH and CORESET0 is greater than or equal to a preset threshold, then the determining module 21 is further adapted to receive the Type0B-PDCCH in CORESET0, the Type0B-PDCCH being used to schedule the PDSCH carrying narrowband SIB1; obtain the scheduling information of the PDSCH carrying narrowband SIB1 based on the Type0B-PDCCH; and receive the PDSCH based on the scheduling information to obtain the narrowband SIB1.

[0139] In a specific implementation, the determining device 2 may further include: a receiving module 23, adapted to receive the CORESET0 and / or the narrowband initial activation downlink BWP at the frequency domain location, and / or to receive the SIB1.

[0140] In a specific implementation, the determining module 21 is further adapted to receive a Type0A-PDCCH, which is used to schedule the PDCCH carrying the OSI PDSCH; obtain scheduling information of the PDSCH carrying the OSI based on the Type0A-PDCCH; and receive the PDSCH based on the scheduling information to obtain the OSI, which includes the narrowband SIB1.

[0141] For the principle, specific implementation, and beneficial effects of the aforementioned determining device 2, please refer to the preceding text and... Figure 1 The relevant descriptions of the methods shown will not be repeated here.

[0142] This invention also provides a storage medium storing computer instructions, which, when executed, perform the above-described... Figure 1 The steps of the method are shown. The storage medium can be a computer-readable storage medium, such as non-volatile or non-transitory memory, and can also include optical disks, hard disk drives, solid-state drives, etc.

[0143] This invention also provides a terminal, including a memory and a processor, wherein the memory stores computer instructions that can run on the processor, characterized in that the processor executes the computer instructions to perform... Figure 1 The steps of the method are shown.

[0144] In this context, "terminal" can refer to various forms of user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), remote station, remote terminal, mobile device, user terminal, terminal equipment, wireless communication equipment, user agent, or user device. Terminal equipment can also be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device, or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal equipment in future 5G networks, or terminal equipment in future evolved Public Land Mobile Networks (PLMNs), etc. This application embodiment does not limit this to these categories.

[0145] Furthermore, the processor can be a central processing unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0146] Furthermore, the memory can be volatile memory or non-volatile memory, or it can include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced synchronous DRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0147] It should be understood that, in various embodiments of the present invention, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0148] In the several embodiments provided by this invention, it should be understood that the disclosed methods, apparatuses, and systems can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0149] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A method for determining access resources, characterized in that, include: When the bandwidth supported by the narrowband UE is less than CORESET0, the existence of narrowband PBCH is determined based on one bit in the PBCH information, wherein the narrowband PBCH indicates the offset of the synchronization signal block from narrowband CORESET0; Determine the frequency domain location of narrowband CORESET0.

2. The determination method according to claim 1, characterized in that, The bandwidth of the narrowband CORESET0 is a preset value.

3. The determination method according to claim 1, wherein the characteristic resource, Determining the frequency domain position of narrowband CORESET0 includes: the lowest PRB of narrowband CORESET0 is equal to the lowest PRB of CORESET0.

4. The determination method according to claim 1, characterized in that, The offset between the lowest PRB of the narrowband CORESET0 and the lowest PRB of CORESET0 or the synchronization signal block is a preset value.

5. The determination method according to claim 4, characterized in that, The bandwidth of the offset is greater than or equal to the bandwidth of the narrowband CORESET0.

6. The determination method according to claim 4, characterized in that, The offset contains a number of PRBs that are greater than or equal to the number of PRBs contained in the narrowband CORESET0.

7. The determination method according to claim 1, characterized in that, Also includes: Obtain the offset between the narrowband CORESET0 and CORESET0 or the synchronization signal block.

8. The determination method according to claim 7, characterized in that, The determination of narrowband CORESET0 includes: determining the lowest PRB of narrowband CORESET0 based on the offset.

9. The determination method according to claim 7, characterized in that, If it is in frequency range 1, the offset is carried in the synchronization signal block index within the PBCH.

10. The determination method according to claim 7, characterized in that, If it is in frequency range 2, the offset is carried in the Type0-PDCCH listening timing indication.

11. The determination method according to claim 7, characterized in that, When the synchronization signal block and CORESET multiplexing mode are 2, the offset is carried in the Type0-PDCCH listening timing indication.

12. The determination method according to claim 7, characterized in that, When the synchronization signal block and CORESET multiplexing mode are 3, the offset is carried in the Type0-PDCCH listening timing indication.

13. The determination method according to claim 1, characterized in that, The bandwidth of the narrowband PBCH is a preset value.

14. The determination method according to claim 1, characterized in that, The offset between the lowest PRB of the narrowband PBCH and the lowest PRB of the synchronization signal block is a preset value.

15. The determining method according to claim 14, characterized in that, The bandwidth of the offset is greater than or equal to the bandwidth of the narrowband PBCH.

16. The determining method according to claim 14, characterized in that, The number of PRBs included in the offset is greater than or equal to the number of PRBs included in the narrowband PBCH.

17. A device for determining access resources, characterized in that, include: The first determining module is used to determine the existence of a narrowband PBCH based on a bit in the PBCH information when the bandwidth supported by the narrowband UE is less than CORESET0, wherein the narrowband PBCH indicates the offset of the synchronization signal block from the narrowband CORESET0. The second determining module is suitable for determining the frequency domain location of the narrowband CORESET0.

18. A storage medium storing computer instructions thereon, characterized in that, The computer instructions, when executed, perform the steps of the method described in any one of claims 1 to 16.

19. A terminal comprising a memory and a processor, wherein the memory stores computer instructions executable on the processor, characterized in that, When the processor executes the computer instructions, it performs the steps of the method according to any one of claims 1 to 16.

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