PEI configuration methods, terminals and network-side devices

Abstract

This application discloses a PEI configuration method, terminal, and network-side device, belonging to the field of communication technology. The PEI configuration method of this application includes: the terminal obtaining first PEI configuration information, the first PEI configuration information being used for PEI configuration on an additional initial BWP; the terminal listening to the PEI according to the first PEI configuration information; wherein, the additional initial BWP is different from the initial BWP.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a configuration method, terminal and network-side equipment for Paging Early Indication (PEI). Background Technology

[0002] In related technologies, terminals perform paging and other operations on the initial bandwidth part (BWP). However, for terminals that need to perform paging and initial access procedures on an additional initial BWP, the configuration information configured for the initial BWP is not applicable to the additional initial BWP. Therefore, it is necessary to provide relevant configuration schemes for the additional initial BWP to better serve terminals that use the additional initial BWP. Summary of the Invention

[0003] This application provides a PEI configuration method, terminal, and network-side device, which can solve problems such as the lack of relevant configuration on the additional initial BWP affecting the terminal's PEI detection and reception, paging reception, and initial access.

[0004] In a first aspect, a method for configuring a PEI is provided, comprising: a terminal obtaining first PEI configuration information, the first PEI configuration information being used for PEI configuration on an additional initial BWP; the terminal listening to the PEI according to the first PEI configuration information; wherein the additional initial BWP is different from the initial BWP.

[0005] Secondly, a PEI configuration method is provided, comprising: a network-side device sending first PEI configuration information to a first terminal, the first PEI configuration information being used for PEI configuration on an additional initial BWP, the additional initial BWP being different from the initial BWP.

[0006] Thirdly, a PEI configuration device is provided, comprising: an acquisition module for acquiring first PEI configuration information, the first PEI configuration information being used for PEI configuration on an additional initial BWP; and a communication module for monitoring the PEI based on the first PEI configuration information; wherein the additional initial BWP is different from the initial BWP.

[0007] Fourthly, a PEI configuration device is provided, comprising: a communication module for sending first PEI configuration information to a first terminal, the first PEI configuration information being used for PEI configuration on an additional initial BWP, the additional initial BWP being different from the initial BWP.

[0008] Fifthly, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0009] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is used to acquire first PEI configuration information, the first PEI configuration information being used for PEI configuration on an additional initial BWP, and the communication interface is used to listen for PEI according to the first PEI configuration information; wherein the additional initial BWP is different from the initial BWP.

[0010] In a seventh aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0011] Eighthly, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send first PEI configuration information to a first terminal, the first PEI configuration information being used for PEI configuration on an additional initial BWP, the additional initial BWP being different from the initial BWP.

[0012] In a ninth aspect, a PEI configuration system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method described in the first aspect, and the network-side device can be used to perform the steps of the method described in the second aspect.

[0013] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0014] Eleventhly, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0015] In a twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0016] In this embodiment, the terminal obtains first PEI configuration information and performs PEI monitoring based on the first PEI configuration information. This first PEI configuration information is used for PEI configuration on the additional initial BWP. This embodiment provides PEI configuration information corresponding to the additional initial BWP configuration, which improves the communication performance of terminals performing paging reception, initial access, and other processes on the additional initial BWP, including PEI detection reception and paging reception. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a wireless communication system according to an embodiment of this application;

[0018] Figure 2 This is a schematic flowchart of a PEI configuration method according to an embodiment of this application;

[0019] Figure 3 This is a schematic diagram illustrating a specific application of the PEI configuration method according to an embodiment of this application;

[0020] Figure 4 This is a schematic flowchart of a PEI configuration method according to an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the configuration device of PEI according to an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the configuration device of PEI according to an embodiment of this application;

[0023] Figure 7 This is a schematic diagram of the structure of a communication device according to an embodiment of this application;

[0024] Figure 8 This is a schematic diagram of the terminal structure according to an embodiment of this application;

[0025] Figure 9 This is a schematic diagram of the structure of a network-side device according to an embodiment of this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0027] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0029] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment may also be referred to as radio access network equipment, radio access network (RAN), radio access network function, or radio access network unit. Access network equipment may include base stations, WLAN access points, or WiFi nodes, etc. Base stations may be referred to as Node B, evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B node, home evolved B node, Transmitting Receiving Point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this embodiment, only a base station in an NR system is used as an example for description, and the specific type of base station is not limited.

[0030] The configuration method of Paging Early Indication (PEI) provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0031] In various embodiments of this application, the initial BWP can be the initial BWP in the related art; the additional initial BWP can be an initial BWP that can be applied to a specific type of terminal, which is different from the initial BWP in the related art; the first PEI configuration information can be used for PEI configuration on the additional initial BWP; the second PEI configuration information can be used for PEI configuration on the initial BWP.

[0032] like Figure 2 As shown, this application embodiment provides a PEI configuration method 200, which can be executed by a terminal. In other words, the method can be executed by software or hardware installed on the terminal. The method includes the following steps: S202: The terminal obtains first PEI configuration information, which is used for PEI configuration on the Additional Initial Bandwidth Part (BWP).

[0033] The terminal mentioned in this application embodiment can be a terminal applying an additional initial BWP, on which the terminal can perform PEI reception, paging reception, initial access, etc. Such terminals include, for example, reduced-capability UEs (RedCap UEs) and evolved reduced-capability UEs (eRedCap UEs).

[0034] The additional initial BWP can be configured for some terminals (such as the terminals in the embodiments of this application). The terminals can perform transmission and reception activities on this additional initial BWP. It should be understood that the additional initial BWP is "additional" and is different from the initial BWP in related technologies. The aforementioned transmission and reception activities include, for example, receiving PEI, receiving the synchronization signal / physical broadcast channel signal block / synchronization signal block (SSB), uplink transmission or downlink reception of random access procedures, receiving system information and paging messages, and radio resource management (RRM) measurement and reselection based on the cell defining SSB (CD-SSB) or non-cell defining SSB (NCD-SSB) within the additional initial BWP.

[0035] Optionally, the terminal obtaining the first PEI configuration information includes: the terminal obtaining the first PEI configuration information by receiving system information or higher-layer signaling, or in other words, the first PEI configuration information is carried in system information or higher-layer signaling. In a specific example, the terminal obtains the first PEI configuration information by receiving system information or higher-layer signaling on the initial BWP.

[0036] S204: The terminal listens for PEI according to the first PEI configuration information. The additional initial BWP is different from the initial BWP.

[0037] In this step, the terminal can listen for PEI on the additional initial BWP according to the first PEI configuration information.

[0038] The PEI configuration method provided in this application involves a terminal acquiring first PEI configuration information and monitoring the PEI based on this information. This first PEI configuration information is used for PEI configuration on an additional initial BWP. This application provides PEI configuration information corresponding to the additional initial BWP configuration, which improves the communication performance of terminals performing paging reception, initial access, and other processes on the additional initial BWP, including PEI detection reception and paging reception.

[0039] Optionally, the first PEI configuration information mentioned in various embodiments of this application may include at least one of the following 1) to 8):

[0040] 1) PEI Search Space (SS): This PEI search space can be used by the terminal to listen for and detect PEI on an additional initial BWP.

[0041] 2) PEI Control Resource Set (CORESET): This PEI control resource set can be used by the terminal to listen for and detect PEI on an additional initial BWP.

[0042] 3) A first Radio Network Temporary Identity (RNTI), which is used to scramble the downlink control information (DCI) carrying the PEI. In one embodiment, the terminal can determine whether the DCI carries the PEI based on the RNTI of the scrambled DCI. For example, if the DCI is scrambled by the PEI-RNTI, then the DCI carries the PEI. Furthermore, the first RNTI can also be a P-RNTI.

[0043] 4) A first offset, comprising: the offset between the start time of the radio frame containing the Paging Early Indication-Occasion (PEI-O) and the start time of the earliest or latest PF among at least one paging radio frames (PF) containing the Paging Occasion (PO), wherein the PO is associated with the PEI-O. This first offset may include a value or a range of values; for details, please refer to [link to relevant documentation]. Figure 3 Examples.

[0044] 5) A second offset, comprising: the offset between the start time of the radio frame containing the PEI-O and the first Paging Early Indication-Monitoring Occasion (PEI-MO) of the PEI-O. This second offset may include a value or a range of values; for details, please refer to [link to relevant documentation]. Figure 3 Examples.

[0045] 6) Size of the DCI carrying the PEI. In one example, the size of the DCI can be the DCI payload or the DCI net (referring to the effective information bits excluding CRC check bits).

[0046] 7) The number of subgroups contained in a PO.

[0047] 8) Number of POs associated with a PEI-O. It can be understood that the number of POs associated with a PEI-O can be interpreted as the number of POs indicated by a PEI-O.

[0048] For one or more of the above 1) to 8), if the first PEI configuration information does not carry it, the one or more items not carried in the first PEI configuration information can share the corresponding items in the second configuration information; wherein, the second PEI configuration information is used for the PEI configuration on the initial BWP.

[0049] In the preceding embodiments, if the first PEI configuration information does not contain the first information, the method further includes: the terminal obtaining the first information based on the second PEI configuration information; or, if the first PEI configuration information does not contain the first information, the first information adopts a default value configured by the network side or agreed by the protocol; wherein, the second PEI configuration information is used for PEI configuration on the initial BWP.

[0050] For example, if the network does not configure a certain item of the first PEI configuration information, that item can be configured in the same way as the corresponding item of the second PEI configuration information configured by the network side for the initial BWP, or it can be configured using the default value specified by the protocol or the network configuration. The "certain item" mentioned above can be any one or more of 1) to 8) above.

[0051] For example, if the first PEI configuration information mentioned above does not include 7) the number of POs associated with a PEI-O, then the terminal may assume that the number of POs associated with a PEI-O in the PEI configuration used on the initial BWP is equal to the number of POs associated with a PEI-O used on the additional initial BWP; or, if the network configures a default value for the number of POs associated with a PEI-O, then in the above case, the number of POs associated with a PEI-O is equal to the default value.

[0052] Optionally, for the search space of the PEI mentioned in 1) above, the search space of the PEI is related to the common search space configured on the additional initial BWP.

[0053] Optionally, the network-side configuration or protocol stipulates that at least one of 1) to 8) above can be shared with the corresponding item in the second configuration information (which can be understood as having the same configuration). Further, the network-side configuration or protocol stipulates that at least one of 1) to 8) above cannot be shared with the corresponding item in the second configuration information.

[0054] In one example, if no first common search space (CSS) is configured on the additional initial BWP, the search space of the PEI is not the first common search space; wherein the first common search space includes at least one of the following a) to d):

[0055] a) System Information Block 1 Public Search Space (SIB1 CSS).

[0056] b) Other System Information Blocks (SIB CSS)

[0057] c) Paging CSS.

[0058] d) Random access to the public search space (RA CSS).

[0059] For example, if Paging CSS is not configured on the additional initial BWP, the search space of the PEI cannot be configured as Paging CSS.

[0060] The search space of the PEI mentioned above is not the first public search space. Specifically, this could mean that the search space of the PEI cannot reuse the first public search space, or that the search space of the PEI cannot be configured as the first public search space. For example, the search space index (ID) of the PEI is not equal to the ID of the first public search space.

[0061] In this embodiment, a first common search space may be configured on the additional initial BWP. If no first common search space is configured on the additional initial BWP, the search space of the PEI is not the first common search space. In other embodiments, if a first common search space is configured on the additional initial BWP, the search space of the PEI can be the first common search space.

[0062] Optionally, for the PEI CORESET mentioned in 2) above, if the additional initial BWP does not contain a complete CORESET#0, the PEI CORESET is not CORESET#0, or in other words, the PEI CORESET cannot be configured as CORESET#0. It should be noted that not containing a complete CORESET#0 includes not containing CORESET#0.

[0063] Optionally, for the CORESET of the PEI mentioned in 2) above, the CORESET of the PEI is a common CORESET configured or included on the additional initial BWP. This embodiment takes into account that a common CORESET may be configured on the additional initial BWP; therefore, the CORESET of the PEI can be the common CORESET. A common CORESET may include a newly defined common CORESET in addition to existing common CORESETs, for example, the common CORESET associated with the additional initial BWP.

[0064] Optionally, for the first offset mentioned in 4) above, the first offset is related to at least one of a) and b) below.

[0065] a) Whether the additional initial BWP is configured with or includes first content, the first content including at least one of a first SSB and a paging search space (Paging CSS), the first SSB including at least one of a cell-defined SSB (CD-SSB) and a non-cell-defined SSB (NCD-SSB).

[0066] b) The period of the first SSB; wherein the first SSB includes at least one of CD-SSB and NCD-SSB.

[0067] In this embodiment, for example, if the additional initial BWP does not have a first SSB configured or includes it, the value range of the first offset is a first range; if the additional initial BWP does not have a paging search space configured or includes it, the value range of the first offset is a second range; if the additional initial BWP does not have a first SSB configured or includes both a paging search space and a third range, the value range of the first offset is a third range. The reason for this configuration is that if the additional initial BWP does not have a first SSB and / or paging CSS configured, the terminal needs to jump to the initial BWP to receive the SSB before receiving the PEI, and then jump back to the additional initial BWP to receive the PEI. If the PEI indicates that paging reception is required at this time, the terminal needs to jump back to the initial BWP to receive the first SSB and paging, etc. Since the terminal requires a certain handover delay during the BWP handover process, the first offset should be at least greater than or equal to this handover delay.

[0068] In one embodiment, the first offset being related to the first SSB period can be understood as the first offset being the size of K first SSB periods, where K is a positive integer.

[0069] Optionally, if the first PEI configuration information includes the search space of the PEI mentioned in 2), the additional initial BWP includes a second SSB, wherein the second SSB includes at least one of CD-SSB and NCD-SSB.

[0070] The first PEI configuration information mentioned in this embodiment, including the PEI search space, can be understood as the PEI search space being configured on the additional initial BWP. That is, if the PEI search space is configured on the additional initial BWP, then (the terminal expects) the additional initial BWP to contain a second SSB.

[0071] Optionally, if the additional initial BWP does not contain a CD-SSB and / or a complete CORESET#0, the second SSB is an NCD-SSB. That is, if the search space for PEI is configured on the additional initial BWP and the additional initial BWP does not contain a CD-SSB and / or a complete CORESET#0, (the terminal expects) the additional initial BWP to contain an NCD-SSB.

[0072] Optionally, if the second SSB is a CD-SSB, the additional initial BWP does not contain an NCD-SSB. That is, if the search space of PEI is configured on the additional initial BWP and the additional initial BWP contains a CD-SSB, the additional initial BWP does not contain an NCD-SSB.

[0073] Optionally, in the preceding embodiments, when the first PEI configuration information includes the search space of the PEI, a Paging CSS is configured on the additional initial BWP. That is, when the PEI search space is configured on the additional initial BWP, (the terminal expects) a Paging CSS to also be configured on the additional initial BWP, meaning the terminal does not expect the PEI SS and Paging SS that it needs to monitor to be configured on different BWPs.

[0074] Optionally, the search space for the PEI that the terminal needs to listen for and detect, as well as the paging CSS, are configured on the additional initial BWP, or both are configured on the initial BWP.

[0075] Optionally, for the DCI size carrying the PEI mentioned in 6) above, the DCI size carrying the PEI satisfies that it is less than or equal to the first DCI size, wherein the first DCI size is determined by at least one of a) to c) below.

[0076] a) Bandwidth of CORESET#0 configured in the Master Information Block (MIB).

[0077] b) The bandwidth of the additional initial BWP.

[0078] c) The bandwidth of the public CORESET configured on the additional initial BWP.

[0079] For example, the size of the first DCI is determined by the maximum or minimum value of the above three items.

[0080] In one example, when Paging CSS is configured on the additional initial BWP, the first DCI size is determined by the bandwidth of the additional initial BWP or the bandwidth of the common CORESET configured on the additional initial BWP.

[0081] In one example, if no Paging CSS is configured on the additional initial BWP, the first DCI size is determined by the bandwidth of CORESET#0 configured in the MIB.

[0082] Optionally, as mentioned in the preceding embodiments, the first DCI can be a downlink fallback DCI (such as DCI 1-0), and the first DCI includes a paging DCI.

[0083] To explain in detail the PEI configuration method provided in the embodiments of this application, the following will be described in conjunction with several specific embodiments.

[0084] In this embodiment, the terminal (such as a Redcap terminal) obtains the first PEI configuration information configured on the additional initial BWP by receiving system information on the initial BWP. Furthermore, the network configuration on the additional initial BWP includes a non-cell-defined SSB (NCD-SSB) and a paging SS. The first PEI configuration information may include at least one of the following:

[0085] 1) PEI SS. In this embodiment, the network configuration PEI SS reuses the paging SS that is also configured on the additional initial BWP. That is, the PEI SS is the paging SS, and the two have the same SS ID and are not 0.

[0086] 2) PEI CORESET. In this embodiment, the network configuration PEI CORESET is a common CORESET of the additional initial BWP configuration, such as... Figure 3 As shown, the frequency domain size of the PEI CORESET is equal to the frequency domain size of the common CORESET; where, Figure 3 The horizontal direction represents the time domain direction, and the vertical direction represents the frequency domain direction.

[0087] 3) First offset. For example... Figure 3 As shown, considering the limited terminal capabilities to listen for and detect PEI and paging on the additional initial BWP, the value of the first offset should usually be large enough, for example, to ensure that the first offset contains 4 NCD-SSBs.

[0088] 4) Second offset. For example... Figure 3 As shown, this refers to the distance from the start of the first physical downlink control channel (PDCCH) listening time of PEI-O to the start of the radio frame.

[0089] 5) PEI DCI Size. Since the size of the first DCI (including the paging DCI) configured on the additional initial BWP is determined according to the additional initial BWP, in order to ensure the detection performance of the PEI DCI, the PEI DCI needs to be less than the size of the first DCI. The first DCI is a fallback DCI, with the format DCI 1-0, scrambled by P-RNTI.

[0090] 6) The number of subgroups contained in a PO. Since there are more terminals applying the additional initial BWP, the number of subgroups contained in the PO can be larger than the number of subgroups contained in the PO applying the initial BWP.

[0091] 7) Number of POs associated with a PEI-O. The number of POs associated with a PEI-O existing on an additional initial BWP may also differ from the number of POs associated with a PEI-O existing on the initial BWP.

[0092] It should be noted that, Figure 3 PEI-O in the context of PO1 and PO2, Figure 3 The indicator schematically shows that a PO associated with a PEI-O has been drawn, but in reality, there can be more PEI-Os and their associated POs.

[0093] In this embodiment, the terminal can listen for PEI on an additional initial BWP based on the first PEI configuration information described above.

[0094] In addition, in order to serve the terminal that performs initial access (including PEI and paging reception process) using the initial BWP, such as a terminal with normal capabilities, the network will also configure the second PEI configuration information associated with the initial BWP.

[0095] The above combination Figure 2 The configuration method of PEI according to embodiments of this application is described in detail. The following will combine... Figure 4 A detailed description of a PEI configuration method according to another embodiment of this application is provided. It will be understood that the interaction between the network-side device and the terminal, as described from the perspective of the network-side device, is... Figure 2 The terminal-side descriptions in the methods shown are the same or corresponding; to avoid repetition, relevant descriptions are omitted as appropriate.

[0096] Figure 4 This is a schematic diagram illustrating the configuration method implementation flow of PEI according to an embodiment of this application, which can be applied to network-side devices. For example... Figure 4 As shown, the method 400 includes the following steps.

[0097] S402: The network-side device sends first PEI configuration information to the first terminal. The first PEI configuration information is used for PEI configuration on the additional initial BWP, which is different from the initial BWP.

[0098] The PEI configuration method provided in this application involves a network-side device sending first PEI configuration information, which is used for PEI configuration on an additional initial BWP. This application provides PEI configuration information corresponding to the additional initial BWP configuration, improving the communication performance of terminals performing paging reception, initial access, and other processes on the additional initial BWP, including PEI detection reception and paging reception.

[0099] Optionally, as an embodiment, the method further includes: the network-side device sending second PEI configuration information to the second terminal, the second PEI configuration information being used for PEI configuration on the initial BWP, wherein the capabilities of the first terminal are lower than those of the second terminal. The first terminal may be, for example, a terminal with reduced capabilities, and the second terminal may be a regular terminal (or a traditional terminal).

[0100] Optionally, as an embodiment, if the first PEI configuration information includes the PEI search space, the additional initial BWP includes a second SSB; the method further includes: sending the second SSB; wherein the second SSB includes at least one of CD-SSB and NCD-SSB.

[0101] Optionally, as an embodiment, if the additional initial BWP does not contain a CD-SSB and / or a complete CORESET#0, the second SSB is an NCD-SSB, and / or, if the second SSB is a CD-SSB, the additional initial BWP does not contain an NCD-SSB.

[0102] Optionally, as an embodiment, if the first PEI configuration information includes the PEI search space, the additional initial BWP is configured with Paging CSS.

[0103] The PEI configuration method provided in this application can be executed by a PEI configuration device. This application uses the execution of the PEI configuration method by a PEI configuration device as an example to illustrate the PEI configuration device provided in this application.

[0104] Figure 5 This is a schematic diagram of the configuration device for PEI according to an embodiment of this application. This device may correspond to a terminal in other embodiments. Figure 5 As shown, the device 500 includes the following modules.

[0105] The acquisition module 502 can be used to acquire first PEI configuration information, which is used for PEI configuration on the additional initial BWP. This acquisition module can be a processor, or it can be a communication module.

[0106] The communication module 504 can be used to listen to the PEI according to the first PEI configuration information; wherein the additional initial BWP is different from the initial BWP.

[0107] The PEI configuration device provided in this application embodiment includes an acquisition module that acquires first PEI configuration information, and a communication module that listens for PEI based on the first PEI configuration information. This first PEI configuration information is used for PEI configuration on the additional initial BWP. This application embodiment provides PEI configuration information corresponding to the additional initial BWP configuration, which improves the communication performance of terminals performing paging reception, initial access, and other processes on the additional initial BWP, including PEI detection reception and paging reception.

[0108] Optionally, as an embodiment, the first PEI configuration information includes at least one of the following 1) to 8): 1) PEI search space; 2) PEI CORESET; 3) first RNTI, the first RNTI being used to scramble the DCI carrying the PEI; 4) first offset, the first offset including: the offset between the start time of the radio frame where the PEI-O is located and the start time of the earliest or latest PF among at least one PF where the PO is located, the PO being associated with the PEI-O; 5) second offset, the second offset including: the offset between the start time of the radio frame where the PEI-O is located and the first PEI-MO of the PEI-O; 6) DCI size carrying the PEI; 7) number of subgroups contained in a PO; 8) number of POs associated with a PEI-O.

[0109] Optionally, as an embodiment, if the first PEI configuration information does not contain the first information, the acquisition module 502 is further configured to obtain the first information based on the second PEI configuration information; or, if the first PEI configuration information does not contain the first information, the first information adopts the default value agreed upon by the network side configuration or protocol; wherein, the second PEI configuration information is used for the PEI configuration on the initial BWP.

[0110] Alternatively, as an embodiment, the search space of the PEI is related to the common search space configured on the additional initial BWP.

[0111] Optionally, as an embodiment, if no first common search space is configured on the additional initial BWP, the search space of the PEI is not the first common search space; wherein, the first common search space includes at least one of the following: 1) SIB1 CSS; 2) Other SIB CSS; 3) Paging CSS; 4) RA CSS.

[0112] Optionally, as an embodiment, if the additional initial BWP does not contain a complete CORESET#0, the CORESET of the PEI is not CORESET#0.

[0113] Optionally, as an example, the CORESET of the PEI is the public CORESET configured on the additional initial BWP.

[0114] Optionally, as an embodiment, the first offset is related to at least one of the following: 1) whether a first content is configured on the additional initial BWP, the first content including at least one of SSB and paging search space; 2) the period of the first SSB; wherein the first SSB includes at least one of CD-SSB and NCD-SSB.

[0115] Optionally, as an embodiment, if the first PEI configuration information includes the search space of the PEI, the additional initial BWP includes a second SSB, wherein the second SSB includes at least one of CD-SSB and NCD-SSB.

[0116] Optionally, as an embodiment, if the additional initial BWP does not contain a CD-SSB and / or a complete CORESET#0, the second SSB is an NCD-SSB, and / or, if the second SSB is a CD-SSB, the additional initial BWP does not contain an NCD-SSB.

[0117] Optionally, as an embodiment, if the first PEI configuration information includes the search space of the PEI, the additional initial BWP is configured with Paging CSS.

[0118] Optionally, as an embodiment, the DCI size carrying the PEI is less than or equal to a first DCI size, wherein the first DCI size is determined by at least one of the following: 1) the bandwidth of CORESET#0 configured in the MIB; 2) the bandwidth of the additional initial BWP; 3) the bandwidth of the common CORESET configured on the additional initial BWP.

[0119] Optionally, as an example, when Paging CSS is configured on the additional initial BWP, the first DCI size is determined by the bandwidth of the additional initial BWP or the bandwidth of the common CORESET configured on the additional initial BWP.

[0120] Alternatively, as an example, if no Paging CSS is configured on the additional initial BWP, the size of the first DCI is determined by the bandwidth of CORESET#0 configured in the MIB.

[0121] Optionally, as an embodiment, the first DCI is a downlink fallback DCI, and the first DCI includes a paging DCI.

[0122] Optionally, as an embodiment, the acquisition module 502 is used to acquire the first PEI configuration information by receiving system information or higher-level signaling.

[0123] The apparatus 500 according to the embodiments of this application can refer to the flow of the method 200 corresponding to the embodiments of this application. Furthermore, each unit / module in the apparatus 500 and the other operations and / or functions described above are respectively for implementing the corresponding flow in the method 200 and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be described in detail here.

[0124] The configuration device for PEI in this embodiment can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the terminal can include, but is not limited to, the type of terminal 11 listed above; other devices can be servers, network attached storage (NAS), etc., and this embodiment does not impose specific limitations.

[0125] Figure 6 This is a schematic diagram of a PEI configuration device according to an embodiment of this application. This device may correspond to a network-side device in other embodiments. Figure 6 As shown, the device 600 includes the following modules.

[0126] The communication module 602 is used to send first PEI configuration information to the first terminal. The first PEI configuration information is used for PEI configuration on an additional initial BWP, which is different from the initial BWP.

[0127] Optionally, the device 600 may also include a processing module, etc.

[0128] The PEI configuration device provided in this application embodiment includes a communication module that sends first PEI configuration information, which is used for PEI configuration on an additional initial BWP. This application embodiment provides PEI configuration information corresponding to the additional initial BWP configuration, improving the communication performance of terminals performing paging reception, initial access, and other processes on the additional initial BWP, including PEI detection reception and paging reception.

[0129] Optionally, as an embodiment, the communication module 602 is further configured to send second PEI configuration information to the second terminal, the second PEI configuration information being used for PEI configuration on the initial BWP, wherein the capabilities of the first terminal are lower than those of the second terminal.

[0130] Optionally, as an embodiment, if the first PEI configuration information includes the PEI search space, the additional initial BWP includes a second SSB; the communication module 602 is used to send the second SSB; wherein the second SSB includes at least one of CD-SSB and NCD-SSB.

[0131] Optionally, as an embodiment, if the additional initial BWP does not contain a CD-SSB and / or a complete CORESET#0, the second SSB is an NCD-SSB, and / or, if the second SSB is a CD-SSB, the additional initial BWP does not contain an NCD-SSB.

[0132] Optionally, as an embodiment, if the first PEI configuration information includes the PEI search space, the additional initial BWP is configured with Paging CSS.

[0133] The apparatus 600 according to the embodiments of this application can refer to the flow of the method 400 corresponding to the embodiments of this application. Furthermore, each unit / module in the apparatus 600 and the other operations and / or functions described above are respectively for implementing the corresponding flow in the method 400 and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be described in detail here.

[0134] The PEI configuration device provided in this application embodiment can achieve Figures 2 to 4 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0135] Optional, such as Figure 7 As shown, this application embodiment also provides a communication device 700, including a processor 701 and a memory 702. The memory 702 stores programs or instructions that can run on the processor 701. For example, when the communication device 700 is a terminal, the program or instructions executed by the processor 701 implement the various steps of the above-described PEI configuration method embodiment and achieve the same technical effect. When the communication device 700 is a network-side device, the program or instructions executed by the processor 701 implement the various steps of the above-described PEI configuration method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0136] This application embodiment also provides a terminal, including a processor and a communication interface. The processor is used to acquire first PEI configuration information, which is used for PEI configuration on an additional initial BWP. The communication interface is used to listen for PEI based on the first PEI configuration information. The additional initial BWP is different from the initial BWP. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 8 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0137] The terminal 800 includes, but is not limited to, at least some of the following components: radio frequency unit 801, network module 802, audio output unit 803, input unit 804, sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, and processor 810.

[0138] Those skilled in the art will understand that the terminal 800 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 810 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 8 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0139] It should be understood that, in this embodiment, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042. The GPU 8041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 806 may include a display panel 8061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0140] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 801 can transmit it to the processor 810 for processing; in addition, the radio frequency unit 801 can send uplink data to the network-side device. Typically, the radio frequency unit 801 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0141] The memory 809 can be used to store software programs or instructions, as well as various data. The memory 809 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 809 may include volatile memory or non-volatile memory, or both. The non-volatile memory may 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. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 809 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0142] Processor 810 may include one or more processing units; optionally, processor 810 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 810.

[0143] The radio frequency unit 801 can be used to monitor the PEI according to the first PEI configuration information; wherein the additional initial BWP is different from the initial BWP. The processor 810 can be used to obtain the first PEI configuration information, which is used for PEI configuration on the additional initial BWP.

[0144] The terminal provided in this application embodiment obtains first PEI configuration information and performs PEI monitoring based on the first PEI configuration information. This first PEI configuration information is used for PEI configuration on the additional initial BWP. This application embodiment provides PEI configuration information corresponding to the additional initial BWP configuration, which improves the communication performance of terminals performing paging reception, initial access, and other processes on the additional initial BWP, including PEI detection reception and paging reception.

[0145] The terminal 800 provided in this application embodiment can also implement various processes of the above-described PEI configuration method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0146] This application embodiment also provides a network-side device, including a processor and a communication interface. The communication interface is used to send first PEI configuration information to a first terminal. The first PEI configuration information is used for PEI configuration on an additional initial BWP, which is different from the initial BWP.

[0147] This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiment can be applied to this network-side device embodiment and can achieve the same technical effect.

[0148] Specifically, embodiments of this application also provide a network-side device. For example... Figure 9 As shown, the network-side device 900 includes: an antenna 91, a radio frequency (RF) device 92, a baseband device 93, a processor 94, and a memory 95. The antenna 91 is connected to the RF device 92. In the uplink direction, the RF device 92 receives information through the antenna 91 and transmits the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be transmitted and sends it to the RF device 92. The RF device 92 processes the received information and transmits it through the antenna 91.

[0149] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 93, which includes a baseband processor.

[0150] Baseband device 93 may include, for example, at least one baseband board on which multiple chips are disposed, such as Figure 9As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 95 via a bus interface to call the program in the memory 95 and execute the network device operations shown in the above method embodiment.

[0151] The network-side device may also include a network interface 96, such as a common public radio interface (CPRI).

[0152] Specifically, the network-side device 900 of this embodiment further includes: instructions or programs stored in a memory 95 and executable on a processor 94, wherein the processor 94 calls the instructions or programs in the memory 95 to execute. Figure 6 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0153] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described PEI configuration method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0154] The processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0155] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described PEI configuration method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0156] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0157] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described PEI configuration method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0158] This application embodiment also provides a PEI configuration system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the PEI configuration method described above, and the network-side device can be used to execute the steps of the PEI configuration method described above.

[0159] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0160] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0161] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for configuring a Paging Advance Indication (PEI), characterized in that, include: The terminal obtains the first PEI configuration information, which is used for PEI configuration on the additional initial bandwidth portion of the BWP. The terminal listens to the PEI according to the first PEI configuration information; wherein, the additional initial BWP is different from the initial BWP; The first PEI configuration information includes the PEI search space; the additional initial BWP includes a second synchronization signal block SSB, wherein the second SSB includes at least one of cell-defined CD-SSB and non-cell-defined NCD-SSB.

2. The method according to claim 1, characterized in that, The first PEI configuration information also includes at least one of the following: PEI's control resource set CORESET; The first radio network temporary identifier (RNTI) is used to scramble the downlink control information (DCI) of the PEI bearer. The first offset includes: the offset between the start time of the radio frame in which the paging advance indication timing PEI-O is located and the start time of the earliest or latest PF in at least one paging radio frame PF in which the paging timing PO is located, wherein the PO is associated with the PEI-O. The second offset includes: the offset between the start time of the radio frame where PEI-O is located and the first paging advance indication listening time PEI-MO of PEI-O; The size of the DCI carrying the PEI; The number of subgroups contained in a PO; The number of POs associated with a PEI-O.

3. The method according to claim 1 or 2, characterized in that, If the first PEI configuration information does not contain the first information, the method further includes: the terminal obtaining the first information based on the second PEI configuration information; or, If the first PEI configuration information does not contain the first information, then the first information adopts the default value of the network-side configuration or the protocol agreement; The second PEI configuration information is used for the PEI configuration on the initial BWP; The first information is at least one of the following: PEI search space, PEI control resource set CORESET, first radio network temporary identifier RNTI, first offset, second offset, DCI size carrying PEI, number of subgroups contained in a PO, and number of POs associated with a PEI-O.

4. The method according to claim 2, characterized in that, The search space of the PEI is related to the common search space configured on the additional initial BWP.

5. The method according to claim 4, characterized in that, If no first common search space is configured on the additional initial BWP, the search space of the PEI is not the first common search space; wherein, the first common search space includes at least one of the following: System Information Block 1 Public Search Space SIB1 CSS; Other System Information Blocks (SIBs) CSS; Paging CSS (Public Search Space); Randomly access the public search space RA CSS.

6. The method according to claim 2, characterized in that, If the additional initial BWP does not contain a complete CORESET#0, the CORESET of the PEI is not CORESET#0.

7. The method according to claim 2, characterized in that, The PEI's CORESET is the common CORESET configured on the additional initial BWP.

8. The method according to claim 2, characterized in that, The first offset is related to at least one of the following: Whether the additional initial BWP is configured with a first content, the first content including at least one of the first synchronization signal block SSB and the paging search space; The period of the first SSB; The first SSB includes at least one of cell definition CD-SSB and non-cell definition NCD-SSB.

9. The method according to claim 1, characterized in that, In the case that the additional initial BWP does not contain a CD-SSB and / or a complete CORESET#0, the second SSB is an NCD-SSB; and / or In the case where the second SSB is a CD-SSB, the additional initial BWP does not contain an NCD-SSB.

10. The method according to claim 1 or 2, characterized in that, If the first PEI configuration information includes the search space of the PEI, then the additional initial BWP is configured with Paging CSS.

11. The method according to claim 2, characterized in that, The DCI size carrying the PEI satisfies that it is less than or equal to a first DCI size, wherein the first DCI size is determined by at least one of the following: The bandwidth of CORESET#0 configured in the main information block MIB; The additional initial BWP bandwidth; The bandwidth of the public CORESET configured on the additional initial BWP.

12. The method according to claim 11, characterized in that, When PagingCSS is configured on the additional initial BWP, the first DCI size is determined by the bandwidth of the additional initial BWP or the bandwidth of the common CORESET configured on the additional initial BWP.

13. The method according to claim 11, characterized in that, In the absence of PagingCSS configured on the additional initial BWP, the size of the first DCI is determined by the bandwidth of CORESET#0 configured in the MIB.

14. The method according to claim 11, characterized in that, The first DCI is a downlink fallback DCI, and the first DCI includes a paging DCI.

15. The method according to claim 1, characterized in that, The terminal obtains the first PEI configuration information including: The terminal obtains the first PEI configuration information by receiving system information or higher-level signaling.

16. A method for configuring PEI, characterized in that, include: The network-side device sends first PEI configuration information to the first terminal. The first PEI configuration information is used for PEI configuration on the additional initial BWP, which is different from the initial BWP. The first PEI configuration information includes the PEI search space; The additional initial BWP includes a second SSB; The method further includes: sending the second SSB; wherein the second SSB includes at least one of CD-SSB and NCD-SSB.

17. The method according to claim 16, characterized in that, The method further includes: The network-side device sends second PEI configuration information to the second terminal. The second PEI configuration information is used for PEI configuration on the initial BWP. The capability of the first terminal is lower than that of the second terminal.

18. The method according to claim 16, characterized in that, In the case that the additional initial BWP does not contain a CD-SSB and / or a complete CORESET#0, the second SSB is an NCD-SSB; and / or In the case where the second SSB is a CD-SSB, the additional initial BWP does not contain an NCD-SSB.

19. The method according to claim 16, characterized in that, If the first PEI configuration information includes the PEI search space, the additional initial BWP is configured with Paging CSS.

20. A PEI configuration device, characterized in that, include: The acquisition module is used to acquire the first PEI configuration information, which is used for PEI configuration on the additional initial BWP. A communication module is used to listen for PEI based on the first PEI configuration information; wherein the additional initial BWP is different from the initial BWP; The first PEI configuration information includes the PEI search space; the additional initial BWP contains a second SSB, wherein the second SSB includes at least one of CD-SSB and NCD-SSB.

21. The apparatus according to claim 20, characterized in that, The first PEI configuration information also includes at least one of the following: PEI's CORESET; The first RNTI is used to scramble the DCI of the PEI bearer; The first offset includes: the offset between the start time of the radio frame where the PEI-O is located and the start time of the earliest or latest PF in at least one PF where the PO is located, the PO being associated with the PEI-O. The second offset includes: the offset between the start time of the radio frame containing the PEI-O and the first PEI-MO of the PEI-O; The size of the DCI carrying the PEI; The number of subgroups contained in a PO; The number of POs associated with a PEI-O.

22. The apparatus according to claim 20 or 21, characterized in that, If the first PEI configuration information does not contain the first information, then the acquisition module is further configured to obtain the first information based on the second PEI configuration information; or, If the first PEI configuration information does not contain the first information, then the first information adopts the default value of the network-side configuration or the protocol agreement; The second PEI configuration information is used for the PEI configuration on the initial BWP; The first information is at least one of the following: PEI search space, PEI control resource set CORESET, first radio network temporary identifier RNTI, first offset, second offset, DCI size carrying PEI, number of subgroups contained in a PO, and number of POs associated with a PEI-O.

23. The apparatus according to claim 21, characterized in that, The search space of the PEI is related to the common search space configured on the additional initial BWP.

24. The apparatus according to claim 23, characterized in that, If no first common search space is configured on the additional initial BWP, the search space of the PEI is not the first common search space; wherein, the first common search space includes at least one of the following: SIB1 CSS; Other SIB CSS; Paging CSS; RA CSS.

25. The apparatus according to claim 21, characterized in that, If the additional initial BWP does not contain a complete CORESET#0, the CORESET of the PEI is not CORESET#0.

26. The apparatus according to claim 21, characterized in that, The PEI's CORESET is the common CORESET configured on the additional initial BWP.

27. The apparatus according to claim 21, characterized in that, The first offset is related to at least one of the following: Whether the additional initial BWP is configured with first content, the first content including at least one of the first SSB and the paging search space; The period of the first SSB; The first SSB includes at least one of CD-SSB and NCD-SSB.

28. The apparatus according to claim 20, characterized in that, In the case that the additional initial BWP does not contain a CD-SSB and / or a complete CORESET#0, the second SSB is an NCD-SSB; and / or In the case where the second SSB is a CD-SSB, the additional initial BWP does not contain an NCD-SSB.

29. The apparatus according to claim 20 or 21, characterized in that, If the first PEI configuration information includes the search space of the PEI, then the additional initial BWP is configured with Paging CSS.

30. The apparatus according to claim 21, characterized in that, The DCI size carrying the PEI satisfies that it is less than or equal to a first DCI size, wherein the first DCI size is determined by at least one of the following: The bandwidth of CORESET#0 configured in the MIB; The additional initial BWP bandwidth; The bandwidth of the public CORESET configured on the additional initial BWP.

31. The apparatus according to claim 30, characterized in that, When PagingCSS is configured on the additional initial BWP, the first DCI size is determined by the bandwidth of the additional initial BWP or the bandwidth of the common CORESET configured on the additional initial BWP.

32. The apparatus according to claim 30, characterized in that, In the absence of PagingCSS configured on the additional initial BWP, the size of the first DCI is determined by the bandwidth of CORESET#0 configured in the MIB.

33. The apparatus according to claim 20, characterized in that, The acquisition module is used to acquire the first PEI configuration information by receiving system information or higher-level signaling.

34. A PEI configuration device, characterized in that, include: The communication module is used to send first PEI configuration information to the first terminal. The first PEI configuration information is used for PEI configuration on the additional initial BWP, which is different from the initial BWP. The first PEI configuration information includes the PEI search space; the additional initial BWP contains a second SSB; The communication module is also used to send the second SSB; wherein the second SSB includes at least one of CD-SSB and NCD-SSB.

35. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the PEI configuration method as described in any one of claims 1 to 15.

36. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the PEI configuration method as described in any one of claims 16 to 19.

37. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the PEI configuration method as described in any one of claims 1 to 15, or implement the steps of the PEI configuration method as described in any one of claims 16 to 19.

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