Wireless communication methods, terminal devices and network devices

Abstract

Provided are wireless communication methods, terminal devices and network devices. A method comprises: a terminal device receives first information sent by a network device, the first information being used for one or more of the following: determining whether a first cell supports transmission of a target system information block (SIB1), the transmission of the target SIB1 being triggered on the basis of a request of the terminal device; determining a transmission resource of a first request, the first request being used for requesting the target SIB1 of the first cell; and determining sequence information of the first request. Compared with conventional solutions where a SIB1 is transmitted periodically, the terminal device can determine whether it is necessary to send the first request in the first cell to trigger the SIB1 transmission, and how to send the first request in the first cell, helping to reduce unnecessary SIB1 transmissions, thus improving the utilization rate of energy and resources.

Description

Method, terminal device and network device for wireless communication TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and more particularly, to a method, a terminal device and a network device for wireless communication. BACKGROUND

[0002] In a conventional communication system, a network device periodically transmits a system information block (SIB) 1, which carries not only key information required by a terminal device to access a cell, but also information about the availability and scheduling of other SIBs. In some scenarios, in order to save network energy, the terminal device can trigger transmission of the SIB 1 based on a first request. However, how to implement sending of the first request is a problem to be solved.

[0003] SUMMARY

[0004] The present application provides a method, a terminal device and a network device for wireless communication. The various aspects of the present application are described below.

[0005] In a first aspect, a method for wireless communication is provided, comprising: receiving, by a terminal device, first information sent by a network device, the first information being used for one or more of the following: determining whether a first cell supports transmission of a target system information block (SIB) 1, the transmission of the target SIB 1 being triggered based on a request of the terminal device; determining a transmission resource of a first request, the first request being used for requesting the target SIB 1 of the first cell; and determining sequence information of the first request.

[0006] In a second aspect, a method for wireless communication is provided, comprising: sending, by a network device, first information to a terminal device, the first information being used for one or more of the following: determining whether a first cell supports transmission of a target system information block (SIB) 1, the transmission of the target SIB 1 being triggered based on a request of the terminal device; determining a transmission resource of a first request, the first request being used for requesting the target SIB 1 of the first cell; and determining sequence information of the first request.

[0007] In a third aspect, a terminal device is provided, comprising: a receiving unit configured to receive first information sent by a network device, the first information being used for one or more of the following: determining whether a first cell supports transmission of a target system information block (SIB) 1, the transmission of the target SIB 1 being triggered based on a request of the terminal device; determining a transmission resource of a first request, the first request being used for requesting the target SIB 1 of the first cell; and determining sequence information of the first request.

[0008] In a fourth aspect, a network device is provided, comprising: a sending unit configured to send first information to a terminal device, the first information being used for one or more of the following: determining whether a first cell supports transmission of a target system information block (SIB1), the transmission of the target SIB1 being triggered based on a request of the terminal device; determining a transmission resource of a first request, the first request being used for requesting the target SIB1 of the first cell; and determining sequence information of the first request.

[0009] In a fifth aspect, a terminal device is provided, comprising a processor, a memory, and a communication interface, the memory being configured to store one or more computer programs, and the processor being configured to invoke the computer programs in the memory, so that the terminal device performs some or all of the steps in the method of the first aspect.

[0010] In a sixth aspect, a network device is provided, comprising a processor, a memory, and a transceiver, the memory being configured to store one or more computer programs, and the processor being configured to invoke the computer programs in the memory, so that the network device performs some or all of the steps in the method of the second aspect.

[0011] In a seventh aspect, an embodiment of the present application provides a communication system, which includes the terminal device and / or the network device described above. In another possible design, the system can further include other devices interacting with the terminal device or the network device in the solutions provided by the embodiments of the present application.

[0012] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. The computer program causes a communication device (e.g., a terminal device or a network device) to perform some or all of the steps in the methods of the above aspects.

[0013] In a ninth aspect, an embodiment of the present application provides a computer program product. The computer program product includes a non-transitory computer-readable storage medium storing a computer program. The computer program is operable to cause a communication device (e.g., a terminal device or a network device) to perform some or all of the steps in the methods of the above aspects. In some implementations, the computer program product can be a software installation package.

[0014] In a tenth aspect, an embodiment of the present application provides a chip, which includes a memory and a processor. The processor can invoke and run a computer program from the memory, to implement some or all of the steps described in the methods of the above aspects.

[0015] In the embodiments of the present application, the terminal device receives first information sent by the network device, and the first information is used to determine whether the first cell supports transmission of on-demand SIB1 and / or transmission of the related configuration information of the first request (for example, transmission resource of the first request and / or sequence information of the first request). Compared with the periodically transmitted SIB1 in the traditional scheme, the terminal device can determine whether it is necessary to send the first request in the first cell to trigger the transmission of SIB1, and how to send the first request in the first cell, which helps to reduce unnecessary SIB1 transmission, and improve the utilization of energy and resources. BRIEF DESCRIPTION OF DRAWINGS

[0016] FIG. 1 is a wireless communication system 100 to which the embodiments of the present application are applied.

[0017] FIG. 2 is a schematic flowchart of a method of wireless communication according to an embodiment of the present application.

[0018] FIG. 3 is an example diagram of a transmission manner of configuration information according to an embodiment of the present application.

[0019] FIG. 4 is an example diagram of a related scheme of first information according to an embodiment of the present application.

[0020] FIG. 5 is a schematic diagram of a terminal device according to an embodiment of the present application.

[0021] FIG. 6 is a schematic diagram of a network device according to an embodiment of the present application.

[0022] FIG. 7 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] The technical solutions in the present application will be described below with reference to the drawings.

[0024] FIG. 1 is a wireless communication system 100 to which the embodiments of the present application are applied. The wireless communication system 100 can include a network device 110 and a terminal device 120. The network device 110 can be a device that communicates with the terminal device 120. The network device 110 can provide communication coverage for a specific geographic area, and can communicate with the terminal device 120 located in the coverage area.

[0025] FIG. 1 exemplarily shows one network device and two terminals. Optionally, the wireless communication system 100 can include multiple network devices and each network device can include other numbers of terminal devices within its coverage, which is not limited in the embodiments of the present application.

[0026] Optionally, the wireless communication system 100 can further include a network controller, a mobile management entity and other network entities, which are not limited in the embodiments of the present application.

[0027] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a 5th generation (5G) system or new radio (NR), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, and the like. The technical solutions provided in the present application can also be applied to future communication systems, such as a 6th generation mobile communication system, a satellite communication system, and the like.

[0028] The terminal device in the embodiments of the present application can also be referred to as a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station (MS), a mobile terminal (MT), a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus. The terminal device in the embodiments of the present application can refer to a device that provides voice and / or data connectivity for a user, and can be used to connect people, things, and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer (Pad), a notebook computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, and the like. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity, which provides a sidelink signal between UEs in V2X or D2D, and the like. For example, a cellular phone and a car communicate with each other using a sidelink signal. The cellular phone and the smart home device communicate with each other without relaying the communication signal through the base station.

[0029] The network device in the embodiments of the present application can be a device for communicating with a terminal device, which can also be referred to as an access network device or a radio access network device, such as a network device, which can be a base station. The network device in the embodiments of the present application can refer to a radio access network (RAN) node (or device) that accesses a terminal device to a wireless network. The base station can broadly cover various names in the following or be replaced by the following names, such as: Node B (NodeB), evolved Node B (eNB), next generation Node B (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station MeNB, auxiliary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, modem or chip for being arranged in the foregoing device or apparatus. The base station can also be a mobile switching center and a device that undertakes the function of a base station in device-to-device (D2D), vehicle-to-everything (V2X), machine-to-machine (M2M) communication, network side device in 6G network, device that undertakes the function of a base station in future communication system, etc. The base station can support networks of the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0030] The base station can be fixed or mobile. For example, a helicopter or a drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or a drone can be configured to act as a device that communicates with another base station.

[0031] In some deployments, the network device in the embodiments of the present application can refer to a CU or a DU, or the network device includes a CU and a DU. The gNB can also include an AAU.

[0032] The network device and the terminal device can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface; can also be deployed on the aircraft, balloon and satellite in the air. The scene where the network device and the terminal device are located is not limited in the embodiments of the present application.

[0033] It should be understood that all or part of the functions of the communication device in the present application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform).

[0034] With the development of mobile communication technology, the communication system adopts large-scale multiple-input multiple-output (MIMO) technology, non-orthogonal multiple access technology, simultaneous full-duplex communication technology, new modulation technology, new coding technology, high-order modulation technology, etc. The peak rate can reach Gbit / s to meet the transmission of large data volume such as high-definition video and virtual reality; the air interface delay level needs to be around 1ms to meet real-time applications such as automatic driving and remote medical treatment. Ultra-large network capacity provides connection ability of hundreds of billions of devices to meet Internet of Things communication. The spectrum efficiency is more than 10 times higher than that of the previous communication system. The user experience rate reaches 100Mbit / s under continuous wide-area coverage and high mobility. The traffic density and connection number density are greatly improved. The system is collaborative and intelligent, which is manifested as the collaborative networking of multi-user, multi-point, multi-antenna and multi-camera, and the flexible and automatic adjustment between networks.

[0035] System messages of a communication system can be divided into a master information block (MIB) message and some system information blocks (SIB) messages. The MIB message is always transmitted on a broadcast channel (BCH), with a period of 80 ms, and is repeatedly transmitted within 80 ms. The MIB message also includes parameters required to acquire the SIB1 message from a cell, and the SIB1 includes information about the availability and scheduling of other SIBs, which are provided through periodic broadcasting or on demand. If the other SIBs are provided on demand, the SIB1 includes information for a terminal device to perform a system information (SI) request; SIBs other than the SIB1 are included in SI messages, which are transmitted on a downlink shared channel (DL-SCH). Each SI message is periodically transmitted within a time domain window, referred to as an SI window; the SIB1 is transmitted on the DL-SCH with a period of 160 ms and a variable transmission repetition period within 160 ms, and the default transmission repetition period of the SIB1 is 20 ms, but the actual transmission repetition period depends on network implementation. The SIB1 carries the most critical information required for a terminal device to access a cell, such as random access parameters. The SIB1 includes information about the availability and scheduling of other SIBs, for example, the SIB1 includes mapping of other SIBs to SI messages, periods, and SI window sizes, etc. The SIB1 also indicates whether one or more SIBs are provided on demand only, in which case it can also provide a physical random access channel (PRACH) configuration required for a terminal device to request the required SI message. The SIB1 also contains radio resource configuration information common to all terminal devices and cell barring information applied to unified access control. SIBs other than the SIB1 are carried in SI messages, which are transmitted on the DL-SCH. Only SIBs with the same periodicity can be mapped to the same SI message. Each SI message is transmitted within a periodically occurring time domain window (referred to as an SI window, in which all SI messages have the same length). Each SI message is associated with an SI window, and the SI windows of different SI messages do not overlap. That is, only the corresponding SI message is transmitted within one SI window. The SI message can be transmitted multiple times within the SI window.

[0036] As described above, in a conventional communication system, a network device periodically transmits the SIB1, and it is not guaranteed that the SIB1 transmitted each time is effectively utilized for a terminal device, which can cause waste of energy and resources.

[0037] For example, an access network device in a communication system periodically transmits SIB1 for initial access of terminal devices and schedules other SIBs required by terminal devices in an idle / inactive mode. However, the access network device always performs transmission of SIB1 even if there is no demand from terminal devices or no terminal device (e.g., UE) camping on the cell. Such a scheme of periodically transmitting SIB1 can cause the access network device (e.g., base station) to consume relatively high power, resulting in waste of energy. Meanwhile, the SIB1 transmitted each time can not be effectively utilized, resulting in waste of transmission resources.

[0038] To save power consumption of the access network device, optimization of SIB1 is required to address the above problem. In some known schemes, a terminal device can trigger transmission of SIB1 based on a request (hereinafter referred to as "first request"), that is, the terminal device can trigger transmission of SIB1 based on its own demand through the first request. For example, if a terminal device in an idle / inactive mode needs SIB1, the terminal device can send the first request to the network device to trigger transmission of SIB1. Conversely, if a terminal device in an idle / inactive mode does not need SIB1, the terminal device can not send the first request to the network device. In some scenarios, such a transmission manner of SIB1 can also be referred to as on-demand transmission of SIB1. Compared with the SIB1 periodically transmitted in the traditional scheme, such an on-demand transmission scheme of SIB1 helps to reduce unnecessary transmission of SIB1 and associated PRACH monitoring, thereby providing more opportunities for the network device to be in a sleep mode. However, how to send the first request is a problem to be solved.

[0039] To solve the above problem, the embodiment of the present application provides a method of wireless communication. A terminal device receives first information sent by a network device, and the first information is used to determine whether a first cell supports transmission of on-demand SIB1 and / or related configuration information (e.g., transmission resource of the first request and / or sequence information of the first request) of transmission of the first request. Compared with the SIB1 periodically transmitted in the traditional scheme, the terminal device can determine whether to send the first request in the first cell to trigger transmission of SIB1 and how to send the first request in the first cell, which helps to reduce unnecessary transmission of SIB1 and improve utilization of energy and resources.

[0040] The method of wireless communication of the embodiment of the present application is described below in combination with FIG. 2. FIG. 2 is a schematic flowchart of the method of wireless communication of the embodiment of the present application. The method shown in FIG. 2 includes step S210.

[0041] In step S210, a network device sends first information to a terminal device.

[0042] In some implementations, the first information is used to determine whether the first cell supports transmission of a target SIB1, and the transmission of the target SIB1 is triggered based on a request of the terminal device. The target SIB1 can also be referred to as an on demand SIB1 (OD-SIB1) because the transmission of the target SIB1 is triggered based on the request of the terminal device.

[0043] Since the transmission of the target SIB1 helps to improve the utilization of energy and resources, in some implementations, if the first cell supports the transmission of the target SIB1, the first cell can also be referred to as a network energy saving (NES) cell, that is, the target SIB1 is from the NES cell.

[0044] In some implementations, the terminal device that supports the request-triggered SIB1 based on the terminal device is also referred to as a terminal device with NES capability.

[0045] In some implementations, the terminal device that does not support the request-triggered SIB1 based on the terminal device is also referred to as a terminal device without NES capability or a legacy terminal device.

[0046] In some implementations, the first information is used to determine whether the first cell supports transmission of a target SIB1, and it can be understood that the first information is used to determine whether the first cell is an NES cell.

[0047] In some other implementations, the first information is used to determine the transmission resource of the first request and / or the sequence information of the first request.

[0048] In some implementations, the first request is used to request the target SIB1 of the first cell, or in other words, the first request is used to request the network device of the first cell to send the target SIB1, or in other words, the target SIB1 of the first cell is triggered based on the first request. For example, the synchronization signal block / physical broadcast channel block (SS / PBCH block, SSB) sent by the first cell does not carry the SIB1, and the terminal device in the idle / inactive state can send the first request to the first cell to request the first cell to send the target SIB1 to access the first cell.

[0049] In the embodiments of the present application, the first request is not limited. For example, the first request can be an uplink wake up signal (UL WUS), which is used to wake up the network device in uplink, so that the network device can send the target SIB1 at the appropriate time. For another example, the first request can be "on demand information or signaling".

[0050] In the embodiments of the present application, the transmission resource is not limited. In some implementations, the transmission resource can include one or more of the following: time domain resource, frequency domain resource and code domain resource. For example, the transmission resource includes the time domain resource, wherein the time domain resource can include symbol, time slot, subframe, frame, etc. Of course, in the embodiments of the present application, the transmission resource can also include other time domain resources introduced in future communication systems. For example, the transmission resource includes the frequency domain resource, wherein the frequency domain resource can include subcarrier, frequency band, bandwidth, etc. Of course, in the embodiments of the present application, the frequency domain resource can also include other frequency domain resources introduced in future communication systems. For example, the transmission resource includes the code domain resource, wherein the code domain resource can include codebook, codeword, etc. Of course, in the embodiments of the present application, the code domain resource can also include other code domain resources introduced in future communication systems.

[0051] The following describes the related scheme of the first information in the embodiments of the present application in combination with Embodiment 1 and Embodiment 2.

[0052] Embodiment 1: The first information is used to determine whether the first cell supports transmission of the target SIB1.

[0053] In some implementations, if the first information is used to determine whether the first cell supports transmission of the target SIB1, the first information includes the first parameter and / or configuration information.

[0054] In some implementations, the first parameter is carried in a field of a physical broadcast channel (PBCH) of the first cell, that is, the first parameter is carried on the MIB of the PBCH of the first cell. For example, the terminal device can obtain the first parameter from the PBCH payload, and the first parameter is used to indicate the identity information of the first cell (such as information used to determine whether the first cell supports transmission of the target SIB1). The terminal device with NES capability and the terminal device without NES capability can detect the SSB of the first cell and obtain the PBCH, and then obtain the first parameter.

[0055] In some implementations, the first parameter is carried in the MIB of the first cell, that is, the first parameter is carried on the MIB of the PBCH of the first cell.

[0056] In some embodiments, the first parameter is carried in a reserved bit of the MIB of the first cell. For example, the first parameter can be carried in a reserved bit of the MIB which is not used by other functions, and the reserved bit can be redefined or extended to indicate whether the first cell supports transmission of the target SIB1. In this way, each terminal device receiving the SSB of the first cell can determine whether the first cell is an NES cell, and the terminal device can be provided with the ability of fast identification, which helps to reduce signaling overhead.

[0057] In some other embodiments, the first parameter is carried in an existing field of the MIB of the first cell. For example, the first parameter is carried in the parameter SSB-SubcarrierOffset of the MIB of the first cell.

[0058] In some embodiments, if the first parameter is carried in an existing field of the MIB of the first cell, the first parameter can be used to indicate the frequency domain offset between the transmission resource of the SSB and the reference resource. For example, the first parameter is Kssb, and the reference resource is Kssb is used to determine the frequency domain offset between the transmission resource of the SSB and Kssb is carried in the parameter SSB-SubcarrierOffset of the MIB of the first cell. Of course, in the embodiments of the present application, the first parameter can also be used to indicate other information.

[0059] In some embodiments, the first information only includes the first parameter, and the first parameter can be used to indicate whether the first cell supports transmission of the target SIB1. For example, the first parameter is Kssb, and Kssb is a part of identifying the SSB, and can be used to indicate whether the first cell supports transmission of the target SIB1. In this way, the terminal device can determine whether the first cell supports transmission of the target SIB1 without receiving the SIB1.

[0060] In some embodiments, the value of the first parameter can be one or more predefined or preconfigured values. For example, the first parameter is Kssb, and when the value of Kssb included in the first information is one or more of the invalid values defined based on the protocol, it indicates that the first cell supports transmission of the target SIB1.

[0061] In some implementations, the first parameter is Kssb, and the value of the first parameter can be a reserved value of Kssb. For example, there is one reserved Kssb value for each of frequency range (FR) 1 and FR2, which is not used for regular SSB transmission, but is used to indicate whether the first cell supports transmission of the target SIB1. Therefore, the reserved Kssb value can be used to indicate that the first cell is an NES cell that supports transmission of the target SIB1. For another example, for FR1, when the value of Kssb is 30, it indicates that the first cell supports transmission of the target SIB1; and for FR2, when the value of Kssb is 14, it indicates that the first cell supports transmission of the target SIB1.

[0062] In some implementations, the first parameter is Kssb, and the value of the first parameter can be a valid value of Kssb. For example, the valid values of Kssb for FR1 are 0-23, and the valid values of Kssb for FR2 are 0-11. In a conventional scheme, a terminal device can determine from the MIB whether there is a control resource set (CORESET) for Type 0 physical downlink control channel (PDCCH) common search space (CSS) set according to the valid value of Kssb. In the embodiments of the present application, the existing valid values of Kssb can be reinterpreted to indicate whether the first cell supports transmission of the target SIB1. For another example, for FR1, the protocol defines that if the value of Kssb is one or more values in 0-23, such as 12 and 18, it indicates that the first cell supports transmission of the target SIB1; and for FR2, the protocol defines that if the value of Kssb is one or more values in 0-11, such as 3 and 5, it indicates that the first cell supports transmission of the target SIB1.

[0063] In some implementations, the first parameter is Kssb, and the value of the first parameter can be an invalid value of Kssb. For example, the invalid values of Kssb for FR1 are 24-31, and the invalid values of Kssb for FR2 are 12-15. The invalid values of Kssb are not used, and can be used to indicate whether the first cell supports transmission of the target SIB1. For another example, for FR1, the protocol defines that if the value of Kssb is one or more values in 24-31, such as 25 and 28, it indicates that the first cell supports transmission of the target SIB1. For FR2, the protocol defines that if the value of Kssb is one or more values in 12-15, such as 13 and 14, it indicates that the first cell supports transmission of the target SIB1.

[0064] In some implementations, the configuration information above is used to configure the first request. For example, the first request is a UL WUS, and the configuration information is UL WUS configuration information, which is used to configure the UL WUS.

[0065] In some implementations, the configuration information is associated with one or more first cells, that is, based on the configuration information, the first request corresponding to the one or more first cells can be configured.

[0066] In the embodiments of the present application, the manner in which the terminal device receives the configuration information is not limited. In some implementations, the configuration information is received by the terminal device in an anchor cell. For example, the configuration information is associated with one or more first cells, one anchor cell can manage one or more first cells, and the anchor cell can have the same DU as the one or more first cells. The anchor cell can send the configuration information to the terminal device that resides in or has accessed the one or more first cells associated with the configuration information. Such configuration information requires coordination between the anchor cell and the one or more first cells to ensure effective transmission and reception of signals. Since changes in SIB1 can occur periodically, synchronization between the one or more first cells and the anchor cell is required, and a fallback procedure can be developed to ensure quick and reliable recovery from failure. At this time, the configuration information received by the terminal device that resides in or has accessed the first cell includes the configuration information corresponding to the first cell in which it resides and / or the configuration information corresponding to other first cells. In other implementations, the configuration information is received by the terminal device in the first cell. For example, the configuration information is associated with one first cell, and the configuration information is relatively simple, but signal transmission and resource allocation in the first cell still need to be considered, and the terminal device can receive the configuration information when it resides in or connects to the first cell associated with the configuration information. At this time, the configuration information received by the terminal device only includes the configuration information corresponding to the first cell in which it resides or to which it is connected.

[0067] In some implementations, if the configuration information is received by the terminal device in the first cell, the presence of the configuration information can be an implicit indication that the target SIB1 can be requested in the first cell, that is, if the terminal device receives the configuration information in the first cell, it can be determined that the first cell supports transmission of the target SIB1.

[0068] In some embodiments, the configuration information is associated with one or more first cells, which can be understood as the configuration information being associated with a physical cell identifier (PCI) of the one or more first cells and / or frequency information of the one or more first cells, i.e., based on the PCI of the first cell and / or the frequency information of the one or more first cells, it can be determined whether the first cell supports the transmission of the target SIB1. For example, the configuration information is associated with the PCI of the one or more first cells, when the terminal device with NES capability camps on a cell A, the PCI of the cell A can be obtained by detecting the SSB of the cell A. If the PCI of the cell A is associated with the configuration information, the terminal device can determine that the cell A supports the transmission of the target SIB1.

[0069] In some embodiments, the configuration information is transmitted in one or more of the following manners: periodically broadcasted; carried in a downlink control information (DCI); carried in a physical downlink shared channel (PDSCH); and carried in a SIB.

[0070] In some embodiments, the configuration information is transmitted in a periodic broadcast manner, which can be understood as the anchor cell can serve as a master cell responsible for uniformly periodically broadcasting the configuration information associated with the one or more first cells, and accordingly, the terminal device camped or accessed to the one or more first cells can receive the periodically broadcasted configuration information.

[0071] In some embodiments, in order to save energy as much as possible, the broadcast period of the configuration information can be a long period, i.e., greater than 20 ms, and this long-period broadcast manner of the configuration information is also referred to as a "sparse mode". For example, referring to FIG. 3, the SSB is broadcasted every 20 ms, and the configuration information is broadcasted every 80 ms, and the network device of the anchor cell broadcasts the configuration information at SFN0, SFN8, SFN16, SFN24, and SFN32 in SFN 0-38.

[0072] In some embodiments, the configuration information is transmitted in a DCI carrying manner, which can be understood as the configuration information being carried in a new DCI format. For example, since the maximum interleaver input is 164 bits, 24 bits are reserved for cyclic redundancy check (CRC), and thus the DCI payload size is limited to 140 bits, and a new DCI format with a payload size of 140 bits is used to carry the configuration information.

[0073] In some implementations, the transmission of the configuration information includes being carried in a DCI, which can be understood as the configuration information being carried in an existing DCI format. For example, the remaining reserved bits on DCI_1_0 are used to carry the CORESET of the PDCCH with the configuration information, which can be easily multiplexed on the same slot as the SSB.

[0074] In some implementations, the transmission of the configuration information includes being carried in a PDSCH, which can be understood as the configuration information being carried in a PDSCH if the data to be transmitted by the configuration information exceeds 140 bits.

[0075] In some implementations, the transmission of the configuration information includes being carried in a SIB, which can be understood as the configuration information being carried in a SIB.

[0076] In some implementations, the configuration information is carried in a SIB, which can be understood as the configuration information being carried in an existing SIB of the anchor cell. For example, the configuration information is carried in a SIB (such as SIB1, SIB2, etc.) of the anchor cell.

[0077] In some implementations, the configuration information is carried in a SIB, which can be understood as the configuration information being carried in a newly added SIB of the anchor cell.

[0078] In some implementations, the transmission of the configuration information can also include being carried in other broadcast messages of the anchor cell. For example, the configuration information is carried in an SSB of the anchor cell.

[0079] In some implementations, the configuration information can be frequency division multiplexed with the SSB. For example, referring to FIG. 3, the SSB is broadcasted every 20 ms, and the configuration information is broadcasted every 80 ms. The configuration information is frequency division multiplexed with the SSB on SFN0, SFN8, SFN16, SFN24, and SFN32 in SFN0-38. For another example, the configuration information is carried in a PDSCH. Assuming that the bandwidth of an initial bandwidth part (BWP) is 48 resource blocks (RBs), and the SSB occupies 20 RBs for synchronization signals and broadcast messages. The 20 RBs are not used by CORESET#0 or PDSCH. CORESET#0 can be frequency division multiplexed on the remaining 28 RBs, coexisting with the SSB. The 28 RBs can be used for control channel transmission (i.e., PDCCH) and data (i.e., PDSCH) transmission of CORESET#0. In this multiplexing mode, although the SSB occupies 20 RBs and these RBs cannot be scheduled by PDSCH, CORESET#0 and the PDSCH carrying the configuration information can still be frequency division multiplexed using the remaining 28 RBs in the initial BWP. This allocation ensures that the resources of the SSB are not interfered by other signals, while still providing sufficient resources for PDSCH to transmit the configuration information.

[0080] In some implementations, after the terminal device receives the configuration information, the terminal device can store the configuration information in a memory of the terminal device, so that the terminal device uses the configuration information at a time when the configuration information is not transmitted.

[0081] In some implementations, the network device sends first indication information to the terminal device, and the first indication information is used to indicate an update of the configuration information. For example, the first cell is an NES cell, and the first indication information is an SI update indication. When the terminal device camps on the NES cell, the SI update indication can be acquired from the NES cell, or can be acquired from an anchor cell. The SI update indication can indicate an updated version of the configuration information.

[0082] In some implementations, before the terminal device sends the first request, if the terminal device receives the first indication information sent by the network device, the terminal device acquires the updated configuration information and stores the updated configuration information in the memory thereof. For example, the first cell is an NES cell, and the terminal device camps on the first cell. Before sending the first request, the terminal device receives the first indication information from the first cell, can acquire the updated configuration information in the first cell, and store the updated configuration information in the memory thereof. The configuration information is only associated with the camped first cell, and the terminal device can send the first request in the first cell based on the updated configuration information. For another example, the first cell is an NES cell, and the terminal device camps on the first cell. Before sending the first request, the terminal device receives the first indication information from the anchor cell, and the first indication information indicates the update of the configuration information corresponding to the first cell. After receiving the first indication information, the terminal device can acquire the updated configuration information from the anchor cell, and the terminal device stores the updated configuration information in the memory thereof. The configuration information is associated with the first cell and a plurality of other NES cells. The terminal device can send the first request based on the updated configuration information corresponding to the camped first cell, to acquire the SIB1 to camp on the first cell again or initially access a new NES cell.

[0083] In some implementations, the updated configuration information can be acquired through SI and / or a radio resource control (RRC) message. For example, the first cell is an NES cell, and the first cell releases the updated configuration information through the SI and / or the RRC message.

[0084] In legacy schemes, SIB1 can have two transmission modes in a first cell: periodic SIB1 or SIB1-less, which can be identified by cell defining SSB (CD-SSB) or non-cell defining SSB (NCD-SSB). CD-SSB is an SSB associated with remaining minimum system information (RMSI) (i.e. SIB1) with PBCH payload parameter Kssb set to a value less than 24 in FR1 and a value less than 12 in FR2; while for non-cell defining SSB (NCD-SSB), its Kssb is set to a value greater than or equal to 24 in FR1 and a value greater than or equal to 12 in FR2. If the first cell has CD-SSB (i.e. Kssb value less than 24 in FR1 and Kssb value less than 12 in FR2), the first cell has periodic SIB1. For CD-SSB, the MIB parameter “pdcch-ConfigSIB1” indicates the configuration of pdcch CoreSetZero and SearchSpaceZero for periodic SIB1 transmission. In addition to having CD-SSB, the first cell with periodic SIB1 can have no or one or more NCD-SSB.

[0085] In some implementations, if the first cell supports transmitting target SIB1, the first cell can have three modes regarding SIB1 transmission: periodic SIB1, SIB1-less or OD-SIB1.

[0086] Since legacy terminal devices can only identify periodic SIB1 and SIB1-less, in order to avoid negative impact on legacy terminal devices (such as accessing the first cell), in some implementations, if the first cell supports transmitting target SIB1, the SSB in the first cell is non-cell defining SSB, or in other words, for the first cell supporting transmitting target SIB1, the SSB that is always online can be set to NCD-SSB, i.e. Kssb value greater than or equal to 24 in FR1 and Kssb value greater than or equal to 12 in FR2, or in other words, for the first cell supporting transmitting target SIB1, if the first cell has one or more SSBs, all SSBs should be NCD-SSB.

[0087] In some implementations, if the terminal device does not support triggering SIB1 based on the request of the terminal device, and the first cell supports transmitting target SIB1, the terminal device identifies the OD-SIB1 as SIB1-less, to avoid being unable to access the first cell, that is, if the first cell supports transmitting OD-SIB1, when the legacy terminal device receives the NCD-SSB in the first cell, the legacy terminal device determines that SIB1 is not transmitted in the first cell.

[0088] In some implementations, if the terminal device does not support triggering SIB1 based on the request of the terminal device, the terminal device receives second information sent by the network device, and the second information is used to determine the search space of the cell-defined SSB transmitted in the first cell. Accordingly, the terminal device that does not support triggering SIB1 based on the request of the terminal device can search the cell-defined SSB transmitted in the first cell based on the second information, and then receive SIB1 based on the search space of SIB1 carried in the cell-defined SSB, to access the first cell.

[0089] In some implementations, the second information is carried in the MIB of the non-cell-defined SSB. For example, the second information is carried in the parameters pdcch-ConfigSIB1 and kssb of the MIB of the non-cell-defined SSB transmitted in the first cell, and the reserved values of pdcch-ConfigSIB1 and kssb together indicate the auxiliary information for the terminal device to search the CD-SSB.

[0090] However, for the terminal device that supports triggering SIB1 based on the request of the terminal device, the cell that only transmits the NCD-SSB can be the cell that supports transmitting OD-SIB1, or the cell that supports transmitting SIB1-less. In order to further distinguish the two modes, in some implementations, if the terminal device supports triggering SIB1 based on the request of the terminal device, and the SSB of the first cell received by the terminal device is a non-cell-defined SSB, the terminal device determines whether the first cell supports transmitting target SIB1 based on the first parameter and / or the configuration information.

[0091] In some implementations, if the terminal device supports triggering SIB1 based on the request of the terminal device, and the SSB of the first cell received by the terminal device is a non-cell defined SSB, the terminal device determines whether the first cell supports transmitting target SIB1 based on a first parameter. For example, the first parameter is Kssb of the non-cell defined SSB, and a reserved value of Kssb (e.g., Kssb is set to 30 in FR1 and Kssb is set to 14 in FR2) indicates that the first cell supports transmitting target SIB1. In this case, the MIB parameter “pdcch-ConfigSIB1” of the non-cell defined SSB can also be reserved, and no auxiliary information is provided for CD-SSB search for legacy devices. For another example, the value of Kssb can also be within the range of NCD-SSB, i.e., Kssb is set to a value greater than or equal to 24 in FR1, and Kssb is set to a value greater than or equal to 12 in FR2.

[0092] In some implementations, if the terminal device supports triggering SIB1 based on the request of the terminal device, and the SSB of the first cell received by the terminal device is a non-cell defined SSB, the terminal device determines whether the first cell supports transmitting target SIB1 based on configuration information. For example, if all SSBs transmitted in the first cell are NCD-SSB, and the first cell is associated with the configuration information, the first cell supports transmitting target SIB1, i.e., the first cell supports transmitting OD-SIB1; otherwise, the first cell does not support transmitting target SIB1, but supports transmitting SIB1-less.

[0093] In some implementations, the terminal device that supports triggering SIB1 based on the request of the terminal device determines whether the first cell supports transmitting target SIB1 based on configuration information. For example, if the configuration information is associated with the PCI of the first cell and / or the frequency information of the first cell, it can be determined that the first cell supports transmitting target SIB1; otherwise, the first cell does not support transmitting target SIB1.

[0094] In some implementations, the terminal device that supports triggering SIB1 based on the request of the terminal device determines whether the first cell supports transmitting target SIB1 based on a first parameter and configuration information. For example, the first parameter is Kssb, the Kssb of the SSB transmitted by the first cell is set to a value greater than or equal to 24 in FR1, and the Kssb of the SSB transmitted by the first cell is set to a value greater than or equal to 12 in FR2, and the terminal device with NES capability determines that all SSBs transmitted by the first cell are NCD-SSB based on the first parameter; and the configuration information received by the terminal device is associated with the PCI of the first cell, and the terminal device can determine that the first cell supports transmitting target SIB1 based on the PCI of the first cell.

[0095] Embodiment 2: The first information is used to determine the transmission resource of the first request and / or the sequence information of the first request.

[0096] In some implementations, if the first information is used to determine the transmission resource of the first request and / or the sequence information of the first request, the first information comprises configuration information used to configure the first request.

[0097] It should be noted that the description of the configuration information in Embodiment 1 also applies to Embodiment 2, which is not repeated here. Of course, the description of the configuration sub-information in Embodiment 2 also applies to Embodiment 1.

[0098] In some implementations, the configuration information is associated with one or more first cells, and the configuration information corresponding to the first cell is determined based on one or more of the following: the transmission resource of the configuration information corresponding to the first cell; the sequence information of the configuration information corresponding to the first cell.

[0099] In some implementations, the configuration information of the first cell is determined based on the sequence information of the configuration information corresponding to the first cell. For example, the configuration information is associated with multiple first cells, and the first cell is an NES cell. Different sequences can be assigned to the configuration information corresponding to different first cells, and the configuration information corresponding to different first cells can be determined based on the sequence information to avoid confusion and interference. For another example, a unique sequence (such as a Zadoff-Chu sequence, a Gold sequence, etc.) is assigned to each first cell as the sequence of the configuration information corresponding to each first cell. The configuration information is identified by the unique sequence, and each sequence has good autocorrelation and cross-correlation characteristics, which can effectively distinguish the configuration information corresponding to different first cells.

[0100] In some implementations, the configuration information corresponding to the first cell is determined based on sequence information of the configuration information corresponding to the first cell. It can be understood that the sequence information of the configuration information corresponding to the first cell is associated with one or more of the following: an identity (ID) of the first cell; load information of the first cell; and network parameters of the first cell. For example, the terminal device obtains the configuration information through the anchor cell, the configuration information is associated with one or more first cells, and the first cell is an NES cell. The anchor cell can generate a set of sequences. Common sequence types can be Zadoff-Chu sequences, Gold sequences, etc. The sequence length and characteristics are selected according to system requirements to ensure sufficient sequence space and reliability. The anchor cell assigns the generated sequence to each first cell. The assignment can be based on the ID of the first cell, the load information of the first cell, or the network parameters of the first cell, so that the sequence information of the configuration information corresponding to each first cell is associated with its ID, load information, or network parameters. When the terminal device receives the configuration information, it can determine the sequence information of the configuration information corresponding to the first cell based on the ID, load information, or network parameters of the first cell, and then determine the configuration information corresponding to the first cell based on the sequence information of the configuration information corresponding to the first cell.

[0101] In some implementations, the ID of the first cell can be understood as an ID that uniquely identifies the first cell. For example, the ID of the first cell can be a PCI or other forms of identifiers.

[0102] In some implementations, the sequence information of the configuration information corresponding to the first cell is associated with the ID of the first cell. It can be understood that the sequence index of the configuration information corresponding to the first cell is associated with the ID of the first cell, that is, the sequence information of the configuration information includes a sequence index, and the sequence index of the configuration information corresponding to the first cell is associated with the ID of the first cell, or the ID of the first cell can be mapped to a specific sequence, and the index of the sequence is used as the sequence index of the configuration information corresponding to the first cell. It should be noted that the mapping rule of the ID of the first cell to the sequence should ensure that different first cell IDs are mapped to different sequences, and the mapping process should be repeatable to ensure consistency.

[0103] In some implementations, the sequence index of the configuration information corresponding to the first cell is determined by the formula sequence_index = cell ID mod N + 1; where cell ID represents the ID of the first cell, mod represents the modulo operation, and N represents the total number of sequences. For example, the terminal device obtains the configuration information through the anchor cell, the configuration information is associated with multiple first cells, the first cell is a NES cell, the anchor cell generates a set of available sequences, and it is assumed that N sequences are generated, which can be identified by sequence indexes (1 to N). The size N of the sequence pool should be large enough to cover all possible IDs of the first cell. The ID of the first cell is mapped to a certain sequence index in the sequence pool by the formula sequence_index = cell ID mod N + 1. For another example, for a first cell with an ID of 1003, if N = 16, then by calculating 1003 mod 16 = 11, the first cell is assigned to the 12th sequence in the sequence pool. Each first cell obtains the corresponding sequence from the sequence pool according to the calculated sequence index, which is used to construct the configuration information as the sequence of the configuration information corresponding to each first cell. The ID of the first cell is mapped to a sequence index between 1 and N by the modulo operation, which is simple and effective, and helps to uniformly distribute the sequences.

[0104] In some implementations, the transmission resource of the first request corresponding to the first cell and / or the sequence information of the first request corresponding to the first cell is determined based on the sequence information of the configuration information corresponding to the first cell.

[0105] In some implementations, the sequence information of the first request corresponding to the first cell is determined based on the sequence information of the configuration information corresponding to the first cell, which can be understood as that the sequence information of the first request corresponding to the first cell is the sequence information of the configuration information corresponding to the first cell. For example, the first cell is a NES cell, the terminal device camping on different first cells receives the configuration information from the anchor cell, obtains the sequence information of the configuration information corresponding to the first cell, and carries the sequence information in the first request, so that the first cell determines the terminal device sending the first request based on the received sequence information of the first request, and then distinguishes whether the first request belongs to itself.

[0106] In some implementations, the transmission resource of the first request corresponding to the first cell includes a physical resource block (PRB), that is, the resource for transmitting the first request corresponding to the first cell includes a PRB.

[0107] In some implementations, the PRB index corresponding to the first request of the first cell is determined based on the sequence index of the configuration information corresponding to the first cell and / or the ID of the terminal device, that is, based on the sequence index of the configuration information corresponding to the first cell and / or the ID of the terminal device, the PRB resource for transmitting the first request in the first cell can be determined.

[0108] In some implementations, the initial PRB index corresponding to the first request of the first cell is determined by the formula PRB_Index INIT = (sequence_Index * K) mod M; where sequence_Index represents the sequence index of the configuration information corresponding to the first cell, K represents a mapping factor, mod represents a modulo operation, and M represents the total length of the PRB set for transmitting the first request set by the first cell.

[0109] It should be noted that the total length M of the PRB set for transmitting the first request set by each first cell is the same.

[0110] In some implementations, the total length M of the PRB set for transmitting the first request is determined based on the maximum PRB length of the first request set by the first cell and / or the number of terminal devices supported.

[0111] In some implementations, the PRB index corresponding to the first request of the first cell transmitted by the i-th terminal device is determined based on the initial PRB index corresponding to the first request of the first cell and the ID of the i-th terminal device.

[0112] In order to ensure one-to-one correspondence between the ID of the terminal device and the PRB index in the PRB pool for transmitting the first request in the first cell, in some implementations, the PRB index corresponding to the first request of the first cell transmitted by the i-th terminal device is determined by the formula PRB_Index(i) = UE_ID(i) mod M + PRB_Index INIT ; where UE_ID(i) represents the ID of the i-th terminal device, mod represents a modulo operation, and PRB_Index INIT represents the initial PRB index corresponding to the first request of the first cell. It should be noted that UE_ID is a positive integer, and different UE_IDs should produce different PRB_Indexes after mapping by the above formula to avoid conflicts. And the PRB_Index calculated each time by the same UE_ID is consistent, and the formula can adapt to different numbers of terminal devices and available PRB numbers. At the same time, this method can ensure that when M is less than or equal to the number of PRB pools, all UE_IDs are mapped to different PRB_Indexes.

[0113] In some implementations, the PRB index of the first request corresponding to the first cell transmitted by the i-th terminal device is determined by the formula PRB_Index(i) = [a*UE_ID(i) + b]mod M + PRB_Index INIT determines; wherein a and b represent pre-configured constants, UE_ID(i) represents the ID of the i-th terminal device, mod represents the modulo operation, and PRB_Index INIT represents the initial PRB index of the first request corresponding to the first cell. The pre-configured constants a and b can increase the randomness and dispersion of the mapping, which helps to increase the uniformity of the mapping and prevent some PRB_Index from being excessively congested.

[0114] In some implementations, a can be a prime number greater than M, which helps to avoid periodic coincidence.

[0115] In some implementations, the PRB index of the first request corresponding to the first cell transmitted by the i-th terminal device is determined by the formula PRB_Index(i) = [Hash(UE_ID(i))]mod M + PRB_Index INIT determines; wherein Hash(·) represents a hash function, UE_ID(i) represents the ID of the i-th terminal device, mod represents the modulo operation, and PRB_Index INIT represents the initial PRB index of the first request corresponding to the first cell. Through the hash function, the distribution of the mapping can be guaranteed to be very good, even if the UE_ID is very close, the mapped PRB_Index can be completely different, which helps to cope with the case where the UE_ID is relatively dense, to adapt to more complex network environments.

[0116] The above describes the related scheme of the first information for determining whether the first cell supports the target SIB1 through Embodiment 1 and Embodiment 2, and the related scheme of the first information for determining the transmission resource of the first request and / or the sequence information of the first request. In some scenarios, Embodiment 1 and Embodiment 2 can be used separately. In other scenarios, Embodiment 1 and Embodiment 2 can be used in combination.

[0117] In order to facilitate understanding, the following will introduce the scheme of combining Embodiment 1 and Embodiment 2 by way of example in combination with FIG. 4.

[0118] Assume that the first information is used to determine whether the first cell supports the target SIB1, the transmission resource of the first request, and the sequence information of the first request. The first information includes configuration information associated with the PCIs of two first cells. Referring to FIG. 4, the two first cells are a first NES cell and a second NES cell, the terminal device residing in the first NES cell is a first terminal device, and the terminal device residing in the second NES cell is a second terminal device.

[0119] Continuing to refer to FIG. 4, the anchor cell sends configuration information to terminal devices camping on the first NES cell and the second NES cell, after the first terminal device camping on the first NES cell and the second terminal device camping on the second NES cell receive the configuration information, the first terminal device and the second terminal device determine that the first NES cell and the second NES cell support transmission of the target SIB1 based on PCIs of the cells obtained from SSBs of the respective cells. Meanwhile, the first terminal device and the second terminal device determine sequence information of the respective configuration information based on IDs of the first NES cell and the second NES cell, and determine transmission resources and sequence information of the first request corresponding to the first NES cell and the first request corresponding to the second NES cell based on the respective sequence information of the configuration information. Finally, the first terminal device and the second terminal device send the first request to the first NES cell and the second NES cell respectively based on the transmission resources and the sequence information of the first request determined respectively. After receiving the first request, the first NES cell and the second NES cell determine whether the first request is the first request corresponding to the first NES cell and the second NES cell based on the sequence information of the first request. If the first NES cell and the second NES cell determine that the first request is the first request corresponding to the first NES cell and the second NES cell respectively, the first NES cell and the second NES cell send the target SIB1 to the first terminal device and the second terminal device respectively.

[0120] The method embodiments are described in detail above in combination with FIG. 1 to FIG. 4, and the device embodiments are described in detail below in combination with FIG. 5 to FIG. 7. It should be understood that the description of the method embodiments and the description of the device embodiments correspond to each other, and therefore, parts not described in detail can be referred to the method embodiments.

[0121] FIG. 5 is a schematic diagram of a terminal device according to an embodiment of the present application. The terminal device 500 includes a receiving unit 510.

[0122] The receiving unit 510 is configured to receive first information sent by a network device, the first information being used for one or more of the following: determining whether a first cell supports transmission of a target system information block (SIB1), the transmission of the target SIB1 being triggered based on a request of the terminal device; determining transmission resources of a first request, the first request being used for requesting the target SIB1 of the first cell; and determining sequence information of the first request.

[0123] In some implementations, if the first information is used for determining whether the first cell supports transmission of the target SIB1, the first information includes one or more of the following: a first parameter, the first parameter being carried in a master information block (MIB) of the first cell; and configuration information, the configuration information being used for configuring the first request.

[0124] In some embodiments, the first parameter is used to indicate a frequency domain offset between a transmission resource of a synchronization signal block (SSB) and a reference resource.

[0125] In some embodiments, the configuration information is received by the terminal device in an anchor cell and / or the first cell, and the configuration information is associated with one or more of the first cells.

[0126] In some embodiments, the configuration information associated with one or more of the first cells comprises one or more of the following: a physical cell identifier (PCI) of one or more of the first cells; frequency information of one or more of the first cells.

[0127] In some embodiments, the configuration information is transmitted in one or more of the following ways: periodically broadcasted; carried in a downlink control information (DCI); carried in a physical downlink shared channel (PDSCH); carried in a system information block (SIB).

[0128] In some embodiments, after the terminal device receives the configuration information, the terminal device further comprises: the receiving unit 510 is further configured to receive first indication information transmitted by the network device, the first indication information being used to indicate an update of the configuration information.

[0129] In some embodiments, if the first cell supports transmission of the target SIB1, the SSB in the first cell is a non-cell-defining SSB.

[0130] In some embodiments, if the terminal device does not support triggering SIB1 based on a request of the terminal device, the terminal device further comprises: the receiving unit 510 is further configured to receive second information transmitted by the network device, the second information being used to determine a search space of a cell-defining SSB transmitted in the first cell, and the second information being carried in a master information block (MIB) of the non-cell-defining SSB.

[0131] In some embodiments, if the terminal device supports triggering SIB1 based on a request of the terminal device, and the SSB of the first cell received by the terminal device is a non-cell-defining SSB, the terminal device further comprises: a determining unit configured to determine whether the first cell supports transmission of the target SIB1 based on the first parameter and / or the configuration information.

[0132] In some embodiments, if the first information is used to determine a transmission resource of the first request and / or determine sequence information of the first request, the first information comprises configuration information used to configure the first request.

[0133] In some embodiments, the configuration information is associated with one or more first cells, and the configuration information corresponding to the first cells is determined based on one or more of the following: a transmission resource of the configuration information corresponding to the first cells; sequence information of the configuration information corresponding to the first cells.

[0134] In some embodiments, the sequence information of the configuration information corresponding to the first cells is associated with one or more of the following: an identity ID of the first cells; load information of the first cells; network parameters of the first cells.

[0135] In some embodiments, the sequence information of the configuration information corresponding to the first cells is associated with the ID of the first cells, including that the sequence information of the configuration information includes a sequence index, and the sequence index of the configuration information corresponding to the first cells is determined by a formula sequence_Index = cell ID mod N + 1; wherein cell ID represents the ID of the first cells, mod represents a modulo operation, and N represents a total number of sequences.

[0136] In some embodiments, the transmission resource of the first request corresponding to the first cells and / or the sequence information of the first request corresponding to the first cells is determined based on the sequence information of the configuration information corresponding to the first cells.

[0137] In some embodiments, the sequence information of the first request corresponding to the first cells is the sequence information of the configuration information corresponding to the first cells.

[0138] In some embodiments, the transmission resource of the first request corresponding to the first cells includes a physical resource block PRB, and a PRB index of the first request corresponding to the first cells is determined based on the sequence index of the configuration information and / or the ID of the terminal device.

[0139] In some embodiments, an initial PRB index of the first request corresponding to the first cells is determined by a formula PRB_Index INIT = (sequence_Index * K) mod M; wherein sequence_Index represents the sequence index of the configuration information corresponding to the first cells, K represents a mapping factor, mod represents a modulo operation, and M represents a total length of PRBs set by the first cells for transmitting the first request.

[0140] In some embodiments, a PRB index of the first request corresponding to the first cells transmitted by the i-th terminal device is determined based on the initial PRB index of the first request corresponding to the first cells and the ID of the i-th terminal device.

[0141] In some implementations, the PRB index of the first request corresponding to the first cell transmitted by the ith terminal device is determined by the formula PRB_Index(i) = UE_ID(i) mod M + PRB_Index INIT determining; wherein, UE_ID(i) represents the ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents the initial PRB index of the first request corresponding to the first cell.

[0142] In some implementations, the PRB index of the first request corresponding to the first cell transmitted by the ith terminal device is determined by the formula PRB_Index(i) = [a*UE_ID(i) + b] mod M + PRB_Index INIT determining; wherein, a and b represent pre-configured constants, UE_ID(i) represents the ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents the initial PRB index of the first request corresponding to the first cell.

[0143] In some implementations, the PRB index of the first request corresponding to the first cell transmitted by the ith terminal device is determined by the formula PRB_Index(i) = [Hash(UE_ID(i))] mod M + PRB_Index INIT determining; wherein, Hash(·) represents a hash function, UE_ID(i) represents the ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents the initial PRB index of the first request corresponding to the first cell.

[0144] FIG. 6 is a schematic diagram of a network device according to an embodiment of the present application. The network device 600 comprises a sending unit 610.

[0145] The sending unit 610 is configured to send first information to a terminal device, wherein the first information is used for one or more of the following: determining whether a first cell supports transmission of a target system information block (SIB1), wherein the transmission of the target SIB1 is triggered based on a request of the terminal device; determining a transmission resource of a first request, wherein the first request is used for requesting the target SIB1 of the first cell; and determining sequence information of the first request.

[0146] In some implementations, if the first information is used for determining whether a first cell supports transmission of a target SIB1, the first information comprises one or more of the following: a first parameter, wherein the first parameter is carried in a master information block (MIB) of the first cell; and configuration information, wherein the configuration information is used for configuring the first request.

[0147] In some embodiments, the first parameter is used to indicate a frequency domain offset between a transmission resource of a synchronization signal block (SSB) and a reference resource.

[0148] In some embodiments, the configuration information is received by the terminal device in an anchor cell and / or the first cell, and the configuration information is associated with one or more of the first cells.

[0149] In some embodiments, the configuration information associated with one or more of the first cells comprises one or more of the following: a physical cell identifier (PCI) of one or more of the first cells; frequency information of one or more of the first cells.

[0150] In some embodiments, the configuration information is transmitted in one or more of the following ways: periodically broadcasted; carried in a downlink control information (DCI); carried in a physical downlink shared channel (PDSCH); carried in a system information block (SIB).

[0151] In some embodiments, after the network device transmits the configuration information, the network device further comprises: the sending unit 610 is further used for sending first indication information to the terminal device, the first indication information being used to indicate an update of the configuration information.

[0152] In some embodiments, if the first cell supports transmission of the target SIB1, the SSB in the first cell is a non-cell-defining SSB.

[0153] In some embodiments, if the terminal device does not support triggering SIB1 based on a request of the terminal device, the network device further comprises: the sending unit 610 is further used for sending second information to the terminal device, the second information being used to determine a search space of a cell-defining SSB transmitted in the first cell, and the second information being carried in a master information block (MIB) of the non-cell-defining SSB.

[0154] In some embodiments, if the first information is used to determine a transmission resource of the first request and / or determine sequence information of the first request, the first information comprises configuration information used to configure the first request.

[0155] In some embodiments, the configuration information is associated with one or more first cells, and the configuration information corresponding to the first cell is determined based on one or more of the following: a transmission resource of the configuration information corresponding to the first cell; sequence information of the configuration information corresponding to the first cell.

[0156] In some embodiments, the sequence information of the configuration information corresponding to the first cell is associated with one or more of the following: an identity ID of the first cell; load information of the first cell; and network parameters of the first cell.

[0157] In some embodiments, the sequence information of the configuration information corresponding to the first cell is associated with the ID of the first cell, including that the sequence information of the configuration information includes a sequence index, and the sequence index of the configuration information corresponding to the first cell is determined by a formula sequence_index = cell ID mod N + 1; wherein cell ID represents the ID of the first cell, mod represents a modulo operation, and N represents a total number of sequences.

[0158] In some embodiments, the transmission resource of the first request corresponding to the first cell and / or the sequence information of the first request corresponding to the first cell is determined based on the sequence information of the configuration information corresponding to the first cell.

[0159] In some embodiments, the sequence information of the first request corresponding to the first cell is the sequence information of the configuration information corresponding to the first cell.

[0160] In some embodiments, the transmission resource of the first request corresponding to the first cell includes a physical resource block (PRB), and a PRB index of the first request corresponding to the first cell is determined based on the sequence index of the configuration information and / or the ID of the terminal device.

[0161] In some embodiments, an initial PRB index of the first request corresponding to the first cell is determined by a formula PRB_Index INIT = (sequence_index * K) mod M; wherein sequence_Index represents the sequence index of the configuration information corresponding to the first cell, K represents a mapping factor, mod represents a modulo operation, and M represents a total length of PRBs set by the first cell for transmitting the first request.

[0162] In some embodiments, a PRB index of the first request corresponding to the first cell transmitted by the i-th terminal device is determined based on the initial PRB index of the first request corresponding to the first cell and the ID of the i-th terminal device.

[0163] In some embodiments, the PRB index of the first request corresponding to the first cell transmitted by the i-th terminal device is determined by a formula PRB_Index(i) = UE_ID(i) mod M + PRB_Index INITdetermines; wherein, UE_ID(i) represents the ID of the i-th terminal device, mod represents a modulo operation, and PRRB_Index(i) represents the initial PRB index corresponding to the first request of the first cell. INIT determines; wherein, UE_ID(i) represents the ID of the i-th terminal device, mod represents a modulo operation, and PRRB_Index(i) represents the initial PRB index corresponding to the first request of the first cell.

[0164] In some implementations, the i-th terminal device transmits the PRB index corresponding to the first request of the first cell according to the formula: PRRB_Index(i) = [a*UE_ID(i) + b] mod M + PRRB_Index INIT determines; wherein, a and b represent pre-configured constants, UE_ID(i) represents the ID of the i-th terminal device, mod represents a modulo operation, and PRRB_Index(i) represents the initial PRB index corresponding to the first request of the first cell. INIT determines; wherein, UE_ID(i) represents the ID of the i-th terminal device, mod represents a modulo operation, and PRRB_Index(i) represents the initial PRB index corresponding to the first request of the first cell.

[0165] In some implementations, the i-th terminal device transmits the PRB index corresponding to the first request of the first cell according to the formula: PRRB_Index(i) = [Hash(UE_ID(i))] mod M + PRRB_Index INIT determines; wherein, Hash(·) represents a hash function, UE_ID(i) represents the ID of the i-th terminal device, mod represents a modulo operation, and PRRB_Index(i) represents the initial PRB index corresponding to the first request of the first cell. INIT determines; wherein, UE_ID(i) represents the ID of the i-th terminal device, mod represents a modulo operation, and PRRB_Index(i) represents the initial PRB index corresponding to the first request of the first cell.

[0166] In optional embodiments, the receiving unit 510 can be a transceiver 730. The terminal device 500 can further include a processor 710 and a memory 720, as shown in FIG. 7.

[0167] In optional embodiments, the sending unit 610 can be a transceiver 730. The network device 600 can further include a processor 710 and a memory 720, as shown in FIG. 7.

[0168] FIG. 7 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application. The dashed line in FIG. 7 indicates that the unit or module is optional. The apparatus 700 can be used to implement the method described in the above method embodiments. The apparatus 700 can be a chip, a terminal device, or a network device.

[0169] The apparatus 700 can include one or more processors 710. The processor 710 can support the apparatus 700 to implement the method described in the foregoing method embodiments. The processor 710 can be a general purpose processor or a special purpose processor. For example, the processor can be a central processing unit (CPU). Alternatively, the processor can also be other general purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, etc. The general purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0170] The apparatus 700 can also include one or more memories 720. The memory 720 stores a program that can be executed by the processor 710, so that the processor 710 executes the method described in the foregoing method embodiments. The memory 720 can be independent of the processor 710 or integrated in the processor 710.

[0171] The apparatus 700 can also include a transceiver 730. The processor 710 can communicate with other devices or chips through the transceiver 730. For example, the processor 710 can perform data transceiving with other devices or chips through the transceiver 730.

[0172] The embodiments of the present application also provide a computer readable storage medium for storing a program. The computer readable storage medium can be applied to the terminal or network device provided by the embodiments of the present application, and the program causes the computer to execute the method performed by the terminal or network device in the various embodiments of the present application.

[0173] The embodiments of the present application also provide a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal or network device provided by the embodiments of the present application, and the program causes the computer to execute the method performed by the terminal or network device in the various embodiments of the present application.

[0174] The embodiments of the present application also provide a computer program. The computer program can be applied to the terminal or network device provided by the embodiments of the present application, and the computer program causes the computer to execute the method performed by the terminal or network device in the various embodiments of the present application.

[0175] It should be understood that the terms "system" and "network" can be used interchangeably in this application. In addition, the terms used in this application are only used to explain the specific embodiments of the application, and are not intended to limit the application. The terms "first", "second", "third", and "fourth" and the like in the specification and claims of the application and the drawings are used to distinguish different objects, and are not used to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0176] In embodiments of the present application, the term "indicate" can be direct indication or indirect indication, or can represent an associated relationship. For example, A indicates B, which can mean that B can be obtained through A; or A indirectly indicates B, for example, A indicates C, and B can be obtained through C; or A and B have an associated relationship.

[0177] In embodiments of the present application, the term "corresponding" can represent a direct or indirect corresponding relationship between the two, or an associated relationship between the two, or an indication and being indicated, configuration and being configured, etc.

[0178] In embodiments of the present application, "predefined" or "preconfigured" can be achieved by pre-saving corresponding codes, tables or other means for indicating related information in devices (such as terminal devices and network devices), and the specific implementation manner is not limited in the present application. For example, predefinition can refer to definition in a protocol.

[0179] In embodiments of the present application, the "protocol" can refer to a standard protocol in the communication field, which can include LTE protocol, NR protocol and related protocols applied to future communication systems, and the present application is not limited thereto.

[0180] In embodiments of the present application, the term "and / or" is only used to describe the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents an "or" relationship between the associated objects before and after it.

[0181] In various embodiments of the present application, the size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0182] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented by other manners. For example, the above-described device embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and in actual implementation, another division manner can be adopted, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0183] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place or distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0184] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0185] In the above embodiments, all or part can be realized by software, hardware, firmware or any combination thereof. When realized by software, all or part can be realized in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium readable by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as digital video disc (DVD)) or semiconductor media (such as solid state disk (SSD)) and the like.

[0186] The above description is only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising: Comprising: The terminal device receives first information sent by the network device, the first information is used for one or more of the following: Determining whether the first cell supports transmission of a target system information block (SIB1), the transmission of the target SIB1 being triggered based on a request of the terminal device; Determining the transmission resource of the first request, the first request being used to request the target SIB1 of the first cell; Determining the sequence information of the first request.

2. The method of claim 1, wherein, If the first information is used to determine whether the first cell supports transmission of the target SIB1, the first information includes one or more of the following: A first parameter, the first parameter being carried in a master information block (MIB) of the first cell; Configuration information for configuring the first request.

3. The method of claim 2, wherein, The first parameter is used to indicate the frequency domain offset between the transmission resource of the synchronization signal block (SSB) and the reference resource.

4. The method of claim 2, wherein, The configuration information is received by the terminal device in an anchor cell and / or the first cell, and the configuration information is associated with one or more first cells.

5. The method of any one of claims 2-4, wherein, The configuration information associated with one or more first cells includes: The configuration information is associated with one or more of the following: Physical cell identifier (PCI) of one or more first cells; Frequency information of one or more first cells.

6. The method of any one of claims 2-5, wherein, The transmission mode of the configuration information includes one or more of the following: Periodic broadcast; Carried in downlink control information (DCI); Carried in physical downlink shared channel (PDSCH); Carried in SIB.

7. The method of any one of claims 2-6, wherein, After the terminal device receives the configuration information, the method further includes: The terminal device receives first indication information sent by the network device, the first indication information being used to indicate the update of the configuration information.

8. The method of any one of claims 2-7, wherein, If the first cell supports transmission of the target SIB1, the SSB in the first cell is a non-cell defined SSB.

9. The method of claim 8, wherein, If the terminal device does not support triggering SIB1 based on the request of the terminal device, the method further includes: The terminal device receives second information sent by the network device, the second information being used to determine the search space of the cell defined SSB transmitted in the first cell, and the second information being carried in the MIB of the non-cell defined SSB.

10. The method of claim 8, wherein, If the terminal device supports triggering SIB1 based on the request of the terminal device, and the SSB of the first cell received by the terminal device is a non-cell defined SSB, the method further includes: The terminal device determines whether the first cell supports transmission of the target SIB1 based on the first parameter and / or the configuration information.

11. The method of any one of claims 1-10, wherein, If the first information is used to determine the transmission resource of the first request and / or determine the sequence information of the first request, the first information includes configuration information for configuring the first request.

12. The method of claim 11, wherein, The configuration information associated with one or more first cells, the corresponding configuration information of the first cell being determined based on one or more of the following: The transmission resource of the configuration information corresponding to the first cell; The sequence information of the configuration information corresponding to the first cell.

13. The method of claim 12, wherein, The sequence information of the configuration information corresponding to the first cell is associated with one or more of the following: Identity (ID) of the first cell; Load information of the first cell; Network parameter of the first cell.

14. The method of claim 13, wherein, The sequence information of the configuration information corresponding to the first cell is associated with the ID of the first cell, and includes: The sequence information of the configuration information includes a sequence index, and the sequence index of the configuration information corresponding to the first cell is determined by the formula sequence_Index=cell ID mod N+1. Wherein, cell ID represents the ID of the first cell, mod represents the modulo operation, and N represents the total number of sequences.

15. The method of any one of claims 12-14, wherein, The transmission resource of the first request corresponding to the first cell and / or the sequence information of the first request corresponding to the first cell is determined based on the sequence information of the configuration information corresponding to the first cell.

16. The method of claim 15, wherein, The sequence information of the first request corresponding to the first cell is the sequence information of the configuration information corresponding to the first cell.

17. The method of claim 15, wherein, The transmission resource of the first request corresponding to the first cell includes a physical resource block (PRB), and the PRB index of the first request corresponding to the first cell is determined based on the sequence index of the configuration information and / or the ID of the terminal device.

18. The method of claim 17, wherein, The first requested initial PRB index corresponding to the first cell is determined by the formula PRB_Index INIT = (sequence_Index * K) mod M; Wherein, sequence_Index represents the sequence index of the configuration information corresponding to the first cell, K represents a mapping factor, mod represents the modulo operation, and M represents the total length of the PRB set by the first cell to transmit the first request.

19. The method of claim 18, wherein, The PRB index of the first request corresponding to the first cell transmitted by the ith terminal device is determined based on the initial PRB index of the first request corresponding to the first cell and the ID of the ith terminal device.

20. The method of claim 19, wherein, The first PRB index corresponding to the first request of the first cell transmitted by the ith terminal device is PRB_Index(i) = UE_ID(i) mod M + PRB_Index INIT determined; Wherein, UE_ID(i) represents the ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents the first requested initial PRB index corresponding to the first cell.

21. The method of claim 19, wherein, The first request PRB index corresponding to the first cell transmitted by the ith terminal device is calculated by the formula PRB_Index(i)=[a*UE_ID(i)+b]mod M+PRB_Index INIT determined; wherein a and b represent preconfigured constants, UE_ID(i) represents an ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents a first requested initial PRB index corresponding to the first cell.

22. The method of claim 19, wherein, The first PRB index corresponding to the first request of the first cell transmitted by the ith terminal device is PRB_Index(i)=[Hash(UE_ID(i))]mod M+PRB_Index INIT determined; Wherein, Hash(·) represents a hash function, UE_ID(i) represents the ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents the initial PRB index of the first request corresponding to the first cell.

23. A method of wireless communication, comprising: Including: The network device sends first information to the terminal device, and the first information is used for one or more of the following: Determine whether the first cell supports transmitting a target system information block (SIB1), and the transmission of the target SIB1 is triggered based on the request of the terminal device; Determine the transmission resource of the first request, and the first request is used to request the target SIB1 of the first cell; Determine the sequence information of the first request.

24. The method of claim 23, wherein, If the first information is used to determine whether the first cell supports transmitting a target SIB1, the first information includes one or more of the following: A first parameter, which is carried in the master information block (MIB) of the first cell; Configuration information for configuring the first request.

25. The method of claim 24, wherein, The first parameter is used to indicate the frequency domain offset between the transmission resource of the synchronization signal broadcast channel block (SSB) and the reference resource.

26. The method of claim 24, wherein, The configuration information is received by the terminal device in an anchor cell and / or the first cell, and the configuration information is associated with one or more first cells.

27. The method of any one of claims 24-26, wherein, The configuration information is associated with one or more first cells, including: The configuration information is associated with one or more of the following: The physical cell identifier (PCI) of one or more first cells; The frequency information of one or more first cells.

28. The method of any one of claims 24-27, wherein, The sending mode of the configuration information includes one or more of the following: Periodic broadcast; Carried in the downlink control information (DCI); Carried in the physical downlink shared channel (PDSCH); Carried in the SIB.

29. The method of any one of claims 24-28, wherein, After the network device sends the configuration information, the method further includes: The network device sends first indication information to the terminal device, and the first indication information is used to indicate update of the configuration information.

30. The method of any one of claims 24-29, wherein, If the first cell supports transmission of the target SIB1, the SSB in the first cell is a non-cell-defined SSB.

31. The method of claim 30, wherein, If the terminal device does not support triggering SIB1 based on a request of the terminal device, the method further comprises: The network device sends second information to the terminal device, and the second information is used to determine a search space of a cell-defined SSB transmitted in the first cell, and the second information is carried in the MIB of the non-cell-defined SSB.

32. The method of any one of claims 23-31, wherein, If the first information is used to determine transmission resources of the first request and / or determine sequence information of the first request, the first information comprises configuration information used to configure the first request.

33. The method of claim 32, wherein, The configuration information is associated with one or more first cells, and the configuration information corresponding to the first cell is determined based on one or more of the following: Transmission resources of the configuration information corresponding to the first cell; Sequence information of the configuration information corresponding to the first cell.

34. The method of claim 33, wherein, The sequence information of the configuration information corresponding to the first cell is associated with one or more of the following: Identity ID of the first cell; Load information of the first cell; Network parameters of the first cell.

35. The method of claim 34, wherein, The sequence information of the configuration information corresponding to the first cell is associated with the ID of the first cell, comprising: The sequence information of the configuration information comprises a sequence index, and the sequence index of the configuration information corresponding to the first cell is determined by the formula sequence_Index=cell ID mod N+1; Wherein, cell ID represents the ID of the first cell, mod represents the modulo operation, and N represents the total number of sequences.

36. The method of any one of claims 33-35, wherein, The transmission resources of the first request corresponding to the first cell and / or the sequence information of the first request corresponding to the first cell are determined based on the sequence information of the configuration information corresponding to the first cell.

37. The method of claim 36, wherein, The sequence information of the first request corresponding to the first cell is the sequence information of the configuration information corresponding to the first cell.

38. The method of claim 36, wherein, The transmission resources of the first request corresponding to the first cell comprise physical resource blocks PRBs, and the PRB index of the first request corresponding to the first cell is determined based on the sequence index of the configuration information and / or the ID of the terminal device.

39. The method of claim 38, wherein, The first requested initial PRB index corresponding to the first cell is determined by the formula PRB_Index INIT = (sequence_Index * K) mod M; Wherein, sequence_Index represents the sequence index of the configuration information corresponding to the first cell, K represents a mapping factor, mod represents the modulo operation, and M represents the total length of the PRBs set by the first cell for transmitting the first request.

40. The method of claim 39, wherein, The PRB index of the first request corresponding to the first cell transmitted by the ith terminal device is determined based on the initial PRB index of the first request corresponding to the first cell and the ID of the ith terminal device.

41. The method of claim 40, wherein, The first PRB index corresponding to the first request of the first cell transmitted by the ith terminal device is PRB_Index(i) = UE_ID(i) mod M + PRB_Index INIT determined; Wherein, UE_ID(i) represents the ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents the first requested initial PRB index corresponding to the first cell.

42. The method of claim 40, wherein, The first request PRB index corresponding to the first cell transmitted by the ith terminal device is calculated by the formula PRB_Index(i)=[a*UE_ID(i)+b]mod M+PRB_Index INIT determined; Wherein, a and b represent preconfigured constants, UE_ID(i) represents the ID of the ith terminal device, mod represents the modulo operation, PRB_Index INIT indicates the initial PRB index of the first request corresponding to the first cell.

43. The method of claim 40, wherein, The first PRB index corresponding to the first request of the first cell transmitted by the ith terminal device is PRB_Index(i)=[Hash(UE_ID(i))]mod M+PRB_Index INIT determined; Wherein, Hash(·) represents a hash function, UE_ID(i) represents the ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents the initial PRB index of the first request corresponding to the first cell.

44. A terminal device, comprising: Comprise: The receiving unit is used for receiving first information sent by the network device, and the first information is used for one or more of the following: determining whether a first cell supports transmission of a target system information block (SIB1), wherein transmission of the target SIB1 is triggered based on a request of a terminal device; determining a transmission resource of a first request, wherein the first request is used to request the target SIB1 of the first cell; determining sequence information of the first request.

45. The terminal device of claim 44, wherein, If the first information is used to determine whether the first cell supports transmission of the target SIB1, the first information comprises one or more of the following: a first parameter, wherein the first parameter is carried in a master information block (MIB) of the first cell; configuration information, wherein the configuration information is used to configure the first request.

46. The terminal device according to claim 45, characterized by The first parameter is used to indicate a frequency domain offset between a transmission resource of a synchronization signal block (SSB) and a reference resource.

47. The terminal device of claim 45, wherein, The configuration information is received by the terminal device in an anchor cell and / or the first cell, and the configuration information is associated with one or more of the first cells.

48. The terminal device of any one of claims 45-47, wherein, The configuration information associated with one or more of the first cells comprises: The configuration information is associated with one or more of the following: physical cell identifiers (PCIs) of the one or more of the first cells; frequency information of the one or more of the first cells.

49. The terminal device of any one of claims 45-48, wherein, The transmission mode of the configuration information comprises one or more of the following: periodic broadcasting; being carried in a downlink control information (DCI); being carried in a physical downlink shared channel (PDSCH); being carried in a SIB.

50. The terminal device of any one of claims 45-49, wherein, After the terminal device receives the configuration information, the terminal device further comprises: The receiving unit is further configured to receive first indication information sent by the network device, wherein the first indication information is used to indicate an update of the configuration information.

51. The terminal device of any one of claims 45-50, wherein, If the first cell supports transmission of the target SIB1, an SSB in the first cell is a non-cell defined SSB.

52. The terminal device according to claim 51, wherein, If the terminal device does not support triggering of a SIB1 based on a request of the terminal device, the terminal device further comprises: The receiving unit is further configured to receive second information sent by the network device, wherein the second information is used to determine a search space of a cell defined SSB transmitted in the first cell, and the second information is carried in a MIB of the non-cell defined SSB.

53. The terminal device of claim 51, wherein, If the terminal device supports triggering of a SIB1 based on a request of the terminal device, and the SSB of the first cell received by the terminal device is a non-cell defined SSB, the terminal device further comprises: a determining unit, configured to determine, based on the first parameter and / or the configuration information, whether the first cell supports transmission of the target SIB1.

54. The terminal device of any one of claims 44-53, wherein, If the first information is used to determine a transmission resource of the first request and / or determine sequence information of the first request, the first information comprises configuration information used to configure the first request.

55. The terminal device according to claim 54, characterized by The configuration information associated with one or more of the first cells is determined based on one or more of the following: a transmission resource of the configuration information corresponding to the first cell; sequence information of the configuration information corresponding to the first cell.

56. The terminal device of claim 55, wherein, The sequence information of the configuration information corresponding to the first cell is associated with one or more of the following: an identity (ID) of the first cell; load information of the first cell; a network parameter of the first cell.

57. The terminal device of claim 56, wherein, The sequence information of the configuration information corresponding to the first cell is associated with the ID of the first cell, and includes: The sequence information of the configuration information includes a sequence index, and the sequence index of the configuration information corresponding to the first cell is determined by the formula sequence_Index=cell ID mod N+1. Wherein, cell ID represents the ID of the first cell, mod represents the modulo operation, and N represents the total number of sequences.

58. The terminal device of any one of claims 55-57, wherein, The transmission resource of the first request corresponding to the first cell and / or the sequence information of the first request corresponding to the first cell is determined based on the sequence information of the configuration information corresponding to the first cell.

59. The terminal device of claim 58, wherein, The sequence information of the first request corresponding to the first cell is the sequence information of the configuration information corresponding to the first cell.

60. The terminal device of claim 58, wherein, The transmission resource of the first request corresponding to the first cell includes a physical resource block (PRB), and the PRB index of the first request corresponding to the first cell is determined based on the sequence index of the configuration information and / or the ID of the terminal device.

61. The terminal device of claim 60, wherein, The first requested initial PRB index corresponding to the first cell is determined by the formula PRB_Index INIT = (sequence_Index * K) mod M. Wherein, sequence_Index represents the sequence index of the configuration information corresponding to the first cell, K represents a mapping factor, mod represents the modulo operation, and M represents the total length of the PRB set by the first cell to transmit the first request.

62. The terminal device of claim 61, wherein, The PRB index of the first request corresponding to the first cell transmitted by the ith terminal device is determined based on the initial PRB index of the first request corresponding to the first cell and the ID of the ith terminal device.

63. The terminal device of claim 62, wherein, The first PRB index corresponding to the first request of the first cell transmitted by the ith terminal device is PRB_Index(i) = UE_ID(i) mod M + PRB_Index INIT determined; Wherein, UE_ID(i) represents the ID of the ith terminal device, mod represents a modulo operation, PPRB_Index INIT represents the first requested initial P RB index corresponding to the first cell.

64. The terminal device of claim 62, wherein, The first PRB index corresponding to the first request transmitted by the ith terminal device is determined by the formula PRB_Index(i)=[a*UE_ID(i)+b]mod M+PRB_Index INIT determination; wherein a and b represent preconfigured constants, UE_ID(i) represents an ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents a first requested initial PRB index corresponding to the first cell.

65. The terminal device of claim 62, wherein, The first PRB index corresponding to the first request of the first cell transmitted by the ith terminal device is PRB_Index(i) = [Hash(UE_ID(i))] mod M + PRB_Index INIT determined; Wherein, Hash(·) represents a hash function, UE_ID(i) represents an ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents the first requested initial PRB index corresponding to the first cell.

66. A network device, comprising: It includes: The sending unit is used for sending first information to the terminal device, and the first information is used for one or more of the following: Determine whether the first cell supports transmitting a target system information block (SIB1), and the transmission of the target SIB1 is triggered based on the request of the terminal device; Determine the transmission resource of the first request, and the first request is used to request the target SIB1 of the first cell; Determine the sequence information of the first request.

67. The network device of claim 66, wherein, If the first information is used to determine whether the first cell supports transmitting a target SIB1, the first information includes one or more of the following: A first parameter, the first parameter is carried in the master information block (MIB) of the first cell; Configuration information, the configuration information is used to configure the first request.

68. The network device of claim 67, wherein, The first parameter is used to indicate the frequency domain offset between the transmission resource of the synchronization signal broadcast channel block (SSB) and the reference resource.

69. The network device of claim 67, wherein, The configuration information is received by the terminal device in an anchor cell and / or the first cell, and the configuration information is associated with one or more first cells.

70. The network device of any of claims 67-69, wherein, The configuration information is associated with one or more first cells, including: The configuration information is associated with one or more of the following: The physical cell identifier (PCI) of one or more first cells; The frequency information of one or more first cells.

71. The network device of any of claims 67-70, wherein, The sending mode of the configuration information includes one or more of the following: Periodic broadcast; Carried in the downlink control information (DCI); Carried in the physical downlink shared channel (PDSCH); Carried in the SIB.

72. The network device of any of claims 67-71, wherein, After the network device sends the configuration information, the network device further includes: The sending unit is further configured to send first indication information to the terminal device, where the first indication information is used to indicate update of the configuration information.

73. The network device of any of claims 67-72, wherein, If the first cell supports transmission of the target SIB1, the SSB in the first cell is a non-cell-defined SSB.

74. The network device of claim 73, wherein, If the terminal device does not support triggering SIB1 based on a request of the terminal device, the network device further comprises: The sending unit is further configured to send second information to the terminal device, where the second information is used to determine a search space of a cell-defined SSB transmitted in the first cell, and the second information is carried in the MIB of the non-cell-defined SSB.

75. The network device of any of claims 66-74, wherein, If the first information is used to determine transmission resources of the first request and / or determine sequence information of the first request, the first information comprises configuration information used to configure the first request.

76. The network device of claim 75, wherein, The configuration information is associated with one or more first cells, and the configuration information corresponding to the first cell is determined based on one or more of the following: Transmission resources of the configuration information corresponding to the first cell; Sequence information of the configuration information corresponding to the first cell.

77. The network device of claim 76, wherein, The sequence information of the configuration information corresponding to the first cell is associated with one or more of the following: An identity ID of the first cell; Load information of the first cell; Network parameters of the first cell.

78. The network device of claim 77, wherein, The sequence information of the configuration information corresponding to the first cell is associated with the ID of the first cell, and the sequence information of the configuration information corresponding to the first cell comprises a sequence index, and the sequence index is determined by a formula sequence_Index=cell ID mod N+1. Where cell ID represents the ID of the first cell, mod represents a modulo operation, and N represents a total number of sequences. The transmission resources of the first request corresponding to the first cell and / or the sequence information of the first request corresponding to the first cell are determined based on the sequence information of the configuration information corresponding to the first cell.

79. The network device of any of claims 76-78, wherein, The sequence information of the first request corresponding to the first cell is the sequence information of the configuration information corresponding to the first cell.

80. The network device of claim 79, wherein, The transmission resources of the first request corresponding to the first cell comprise physical resource blocks PRBs, and a PRB index of the first request corresponding to the first cell is determined based on the sequence index of the configuration information and / or the ID of the terminal device.

81. The network device of claim 79, wherein, Where sequence_Index represents the sequence index of the configuration information corresponding to the first cell, K represents a mapping factor, mod represents a modulo operation, and M represents a total length of PRBs used to transmit the first request and set by the first cell.

82. The network device of claim 81, wherein, The first requested initial PRB index corresponding to the first cell is determined by the formula PRB_Index INIT = (sequence_Index * K) mod M; A PRB index of the first request corresponding to the first cell transmitted by an i-th terminal device is determined based on an initial PRB index of the first request corresponding to the first cell and the ID of the i-th terminal device.

83. The network device of claim 82, wherein, A terminal device comprises a transceiver, a memory and a processor, the memory is configured to store a program, the processor is configured to invoke the program in the memory and control the transceiver to receive or send signals, so that the terminal device performs the method in any one of claims 1-22.

84. The network device of claim 83, wherein, The first PRB index corresponding to the first request of the first cell transmitted by the ith terminal device is PRB_Index(i) = UE_ID(i) mod M + PRB_Index INIT determined; Wherein, UE_ID(i) represents the ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents the first requested initial PRB index corresponding to the first cell.

85. The network device of claim 83, wherein, The first request PRB index corresponding to the first cell transmitted by the ith terminal device is calculated by the formula PRB_Index(i)=[a*UE_ID(i)+b]mod M+PRB_Index INIT determined; wherein a and b represent preconfigured constants, UE_ID(i) represents an ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents a first requested initial PRB index corresponding to the first cell.

86. The network device of claim 83, wherein, The first PRB index corresponding to the first request of the first cell transmitted by the ith terminal device is PRB_Index(i) = [Hash(UE_ID(i))] mod M + PRB_Index INIT determined; wherein Hash(·) represents a hash function, UE_ID(i) represents an ID of the ith terminal device, mod represents a modulo operation, PRB_Index INIT represents a first requested initial PRB index corresponding to the first cell.

87. A terminal device, comprising: ​ 88. A network device, comprising: comprising a transceiver, a memory for storing a program, and a processor for invoking the program in the memory and controlling the transceiver to receive or send signals, so that the network device performs the method of any one of claims 23-43.

89. An apparatus comprising: comprising a processor for invoking a program from a memory, so that the apparatus performs the method of any one of claims 1-43.

90. A chip, comprising: comprising a processor for invoking a program from a memory, so that the apparatus performs the method of any one of claims 1-43.

91. A computer readable storage medium, characterized in that, having a program stored thereon, which causes a computer to perform the method of any one of claims 1-43.

92. A computer program product, characterized in that, comprising a program which causes a computer to perform the method of any one of claims 1-43.

93. A computer program, characterized in that, The computer program causes a computer to perform the method of any one of claims 1-43. The computer program causes a computer to perform the method of any one of claims 1-43.

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